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    Conference Call TR45.3/98.04.06.07R4

    (TR45/98.03.03.19R6)

    1999 Universal Wireless Communications Consortium Page 177 of 306

    ATTACHMENT 11

    2

    3

    4

    In 136 HS, 8-PSK modulation along with GMSK with the same symbol rate, 270.833ksps, is us56

    8-PSK7

    8

    9

    10

    Advantages: Very fast link adaptation; No extra complexity11

    (0,0,1)

    (1,0,1)

    (d(3k),d(3k+1),d(3k+2))=

    (0,0,0) (0,1,0)

    (0,1,1)

    (1,1,1)

    (1,1,0)

    (1,0,0)

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    136 HS Slot Format for 8-PSK and GMSK1

    2

    3

    576.92 Sec.

    TS

    3

    IS

    58

    GP

    8.25

    TS

    3

    IS

    58

    TSS

    26

    TSISTSS

    GP

    Tail SymbolsInformation SymbolsTraining Sequence Symbols

    Guard Period

    Gross User Payload (8-PSK) : 348 bits - 2 stealing bitsGross User Payload (GMSK) : 116 bits - 2 stealing bits

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    Symbol and Bit Rates1

    2

    3

    4

    Symbol Rate

    Bits/Symbol

    Payload/Time Slot

    Gross User Rate/Time Slot

    Gross User Rate/Carrier

    270.833 ksps

    3

    346 bits

    69.2 kbit/s

    553.6 kbit/s

    270.833 ksps

    1

    114 bits

    22.8 kbit/s

    182.4 kbit/s

    Modulation Types

    8-PSK GMSK

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    8-PSK Coding and Puncturing Parameters1

    2

    3

    4

    Puncturing

    Interleaving

    ConvolutionalCoding

    BH DATA BCSDATA Block

    1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3

    Slot

    576.92 sec TDMA FRAME

    4.615 msec

    26

    120

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    1999 Universal Wireless Communications Consortium Page 181 of 306

    1

    2

    Coding scheme PCS-6 PCS-5 PCS-4 PCS-3 PCS-2 PCS-1

    Radio Interface Rate(kbps) 69.2 57.35 51.6 41.25 34.3 22.8

    Input bits (per 20ms block) 1384 1147 1032 825 686 456

    Convolutional coding rate n.a. 1/3

    Polynomials n.a. G0, G1 G0, G1 G0, G1 G0, G1 G0, G1,

    Tail bits n.a. 6 6 6 6 6

    Number of encoded bits n.a. 2422 2076 1662 1384 1386

    Remaining bits after

    puncturingn.a. 1384 1384 1384 1384 1384

    Output bits 1384 1384 1384 1384 1384 1384

    G0 = 1 + D2

    + D3

    + D5

    + D6

    , G1 = 1 + D + D2

    + D3

    + D6

    , G2 = 1 + D + D4

    + 3

    Table 1: Coding and Puncturing Parameters4

    5

    6

    Puncturing7

    8

    In this section more detailed descriptions of the different puncturing schemes are given.9

    10

    PCS-111

    12

    The puncturing matrix P is defined by:13

    14

    P(n)=1, n except for n=467,947 where P(n)=015

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    1

    PCS-22

    3

    No puncturing is used.4

    5

    PCS-36

    7

    P(n)=1, n except for n=12k,12k+5 k0,,138 where P(n)=089

    10

    PCS-411

    12

    The puncturing matrix P is defined by:13

    14

    P(n)=1,

    n except for n=12k,12k+5, 12k+7, 12k+8 k

    0,,172 where P(n)=015

    16

    PCS-517

    18

    The puncturing matrix P is defined by:19

    20

    P(n)=1, n except for n=10k+3,10k+5, 10k+7, 10k+9 k0,,23021and n=2303,2305 where P(n)=022

    23

    PCS-624

    25

    This is an uncoded scheme, and hence no puncturing is applied.2627

    28

    29

    30

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    Channel Coding Schemes for Packet Data1

    2

    3

    Service name Code rate Modulation Gross rate Radio interface rateper Time slot

    PCS-1 0.329 8-PSK 69.2 kbps 22.8 kbps

    PCS-2 0.496 8-PSK 69.2 kbps 34.3 kbps

    PCS-3 0.596 8-PSK 69.2 kbps 41.25 kbps

    PCS-4 0.746 8-PSK 69.2 kbps 51.6 kbps

    PCS-5 0.829 8-PSK 69.2 kbps 57.35 kbps

    PCS-6 1.0 8-PSK 69.2 69.2 kbpsCS-1 0.49 GMSK 22.8 kbps 11.2 kbps

    CS-2 0.64 GMSK 22.8 kbps 14.5 kbps

    CS-3 0.73 GMSK 22.8 kbps 16.7 kbps

    CS-4 1 GMSK 22.8 kbps 22.8 kbps4

    * The radio interface rate includes the signaling overhead for the RLC/MAC la5

    6

    7

    8

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    1

    ATTACHMENT 22

    3

    Equalizer Simulations4

    5

    Performance for High Velocities6

    7

    While the physical layer performance shown in Attachment 8 looks very good for the8

    Pedestrian environment (3 km/h), the performance with the same simple equalizer degrades9

    at vehicular speeds. Figure 1 shows the BLER performance for the Vehicular A12010

    interference limited environment using the simple DFSE equalizer. These results show that11

    an error floor develops for the lighter coded schemes, while the uncoded PCS-6 coding12scheme is totally unusable.13

    14

    When the higher dispersion Vehicular channel B environment is considered, the performance15

    is even worse as shown in Figure 3.16

    17

    To solve this problem an improved equalizer for 8-PSK was developed based upon the IRW18

    channel tracking scheme developed for the GMSK very high vehicular speed equalizer. This19

    improved 8-PSK equalizer, developed for the harshest Vehicular B120 environment is an 820

    tap DFSE design using the IRW channel tracker.21

    22

    The BLER performance of this improved 8-PSK equalizer for the original Vehicular A12023environment is shown in Figure 2. These results show a significant improvement in24

    performance with no error floor for the coded schemes.25

    26

    27

    28

    29

    30

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    1

    2

    Figure 1. BLER Performance for 8-PSK simple equalizer in ITU Vehicular A1203

    Interference Limited environment4

    5

    6

    Figure 2. BLER Performance for 8-PSK improved equalizer in ITU Vehicular A1207

    Interference Limited environment8

    9

    0 5 10 15 20 25 30 35 4010

    2

    101

    100

    vehicular A, 120km/h, 2br ,no FH

    C/I [dB]

    BLER(blockerrorrate)

    PCS1PCS2PCS3PCS4PCS5PCS6

    0 5 10 15 20 25 30 3510

    2

    101

    100

    vehicular A, 120km/h, 2br

    C/I [dB]

    BLER(blockerrorrate)

    PCS1PCS2PCS3PCS4PCS5PCS6

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    Performance in Time Dispersive Environments1

    2

    In the Pedestrian environment, there is essentially no performance difference between the3

    Channel A and Channel B environments, as shown in Attachment 8. The simple 8-PSK4

    equalizer can handle the time dispersion of up to 3.7 usec in the Pedestrian Channel B.5

    However, in the ITU Vehicular Channel B model, time dispersion of up to 20 usec is seen6

    which results in considerably worse performance in the Vehicular Channel B environment as7

    compared to the Vehicular Channel A environment when using the simple equalizer. The8

    Vehicular B120 BLER performance using the simple equalizer is shown in Figure 3.9

    10

    The BLER performance for the Vehicular B120 environment using the improved 8 tap DFSE11

    equalizer is shown in Figure 4. These results show that the performance for Vehicular12

    Channel B with the improved equalizer is better than the Vehicular A120 results for the13

    simple equalizer. The dynamic system simulation results given in Attachment 6 for14

    Vehicular A120 are using the simple equalizer and should therefore be taken as worse case15

    for the Vehicular environment when using the improved equalizer.16

    17

    18

    Figure 3. BLER Performance for 8-PSK simple equalizer in ITU Vehicular B12019

    Interference Limited environment20

    21

    The complexity of the improved DFSE equalizer used for the Vehicular environment is22

    approximately 4 times that of the simple DFSE equalizer.23

    24

    25

    26

    27

    28

    0 5 10 15 20 25 30 35 4010

    2

    101

    100

    vehicular B, 120km/h, 2br ,no FH

    C/I [dB]

    B

    LER(blockerrorrate)

    PCS1PCS2PCS3PCS4PCS5PCS6

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    1

    Figure 4. BLER Performance for 8-PSK improved equalizer in ITU Vehicular B1202

    Interference Limited environment.3

    4

    The corresponding throughput performance based on the above BLER curves using the5

    improved equalizer is shown in Figure 5 for Vehicular A120 and Figure 6 for Vehicular B1206

    respectively.7

    8

    Figure 5. Throughput Performance of 8-PSK improved equalizer for Vehicular A1209

    Interference Limited environment10

    0 5 10 15 20 25 30 3510

    2

    101

    100

    vehicular B, 120km/h, 2br ,Tracking DFSE

    C/I [dB]

    BLER(blockerrorrate

    )

    PCS1PCS2PCS3PCS4PCS5PCS6

    0 5 10 15 20 25 30 350

    10

    20

    30

    40

    50

    60

    70vehicular A, 120km/h, 2br

    C/I [dB]

    Throughput[kbit/s]

    PCS1PCS2PCS3PCS4PCS5PCS6

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    1

    2

    Figure 6. Throughput Performance of 8-PSK improved equalizer for Vehicular B1203

    Interference Limited environment4

    Additional Equalizer Improvements for Very High Velocities5

    Additional improvements have been made in the equalizer for very high mobile speeds. A6

    new full adaptive MLSE equalizer with a 6-tap channel model is evaluated. The channel7

    impulse response is broken into two parts, the unknown response of the medium (3taps), and8

    the known response of the transmit filter and the receive filter. Only the three taps of the9

    medium are tracked. The tracker is based on an Integrated Random Walk (IRW) model for10

    each tap of the medium response. A least-squares type synchronization algorithm was used11

    to determine the best sampling point for each burst12

    13

    Simulation results for 500 km/hr mobile speed in a ITU Vehicular A channel environment for14

    1900 MHz are presented below. GMSK is used resulting in a peak radio interface rate of15

    182.4 kbps (uncoded). No receiver diversity is assumed.16

    17

    Block error rate performance for 500 km/hr mobile speed in a ITU Vehicular A environment18

    for 1900 MHz for coding schemes CS-1 through CS-4 as well as one additional coding19

    scheme (R=0.79) are presented in Figure 7 for Eb/No and Figure 8 for C/I. No receiver20

    diversity is assumed.21

    22

    0 5 10 15 20 25 30 350

    10

    20

    30

    40

    50

    60

    70

    vehicular B, 120km/h, 2br ,Tracking DFSE

    C/I [dB]

    Throughput[kbit/s]

    PCS1PCS2PCS3PCS4

    PCS5PCS6

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    1

    Figure 7. BLER vs Eb/No Performance of GMSK improved channel tracking2

    equalizer3

    4

    5

    Figure 8. BLER vs C/I Performance of GMSK improved channel tracking equalizer6

    7

    The corresponding fractionally loaded throughput performance expressed as a CDF for8

    GMSK using the above BLER results for the interference limited case is shown in Figure 9.9

    0 2 4 6 8 10 12 14 16 18 2010

    4

    103

    102

    101

    100

    GMSK ITU Channel A Vehicular 500km/h; no FH ; no diversity ; 1900MHz

    EbN0[dB] (Eb = Energy per modulated bit)

    BLER(BlockErrorRate)

    R=0.5R=0.64R=0.73R=0.79R=1.0

    0 5 10 15 20 2510

    4

    103

    102

    101

    100

    GMSK ITU Channel A Vehicular 500km/h; no FH ; no diversity ; 1900MHz

    C/I[dB]

    BLER(BlockErrorRate)

    R=0.5R=0.64R=0.73R=0.79R=1.0

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    The aggregate average throughput for these results is 149 kbit/s. These results are again1

    without mobile station antenna diversity.2

    3

    4

    5

    Figure 9. Throughput Performance for GMSK with improved channel tracking6

    equalizer7

    8

    9

    10

    11

    12

    0 20 40 60 80 100 120 140 160 180 2000

    0.1

    0.2

    0.3

    0.4

    0.5

    0.6

    0.7

    0.8

    0.9

    1

    C.D.F.

    Vehicular A 500 km/h no diversity

    Throughput S [kbps]

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    Attachment 31

    Peak to Average Ratio and Backoff2

    3

    In order to decrease the Peak to Average Ratio a linearized GMSK pulse is used as transmitter filter. The pulse4

    shape is depicted in Figure 1.56

    7

    2 1.5 1 0.5 0 0.5 1 1.5 2symbols8

    Figure 1: Pulse shape of linearized GMSK filter9

    10

    11

    The resulting Peak to Average Ratio, PAR, using the linearized GMSK filter is therefore:12

    13

    PAR8-PSK= 2.5 dB14

    15

    PAR GMSK= 0 dB16

    17

    The peak value for the PAR-value calculation is defined as the amplitude value which is exceeded by 0.1 % of18

    the amplitude values.19

    20

    Power Considerations21

    22

    Considering the peak-to-average information presented above, the mobile transmit power can be analyzed.23

    Table 1 shows the power considerations for a mobile for8-PSK, and Table 2 for GMSK.24

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    1

    Table 1 8-PSK2

    3

    Number of

    Active Uplink

    Timeslots

    PA Back-off due

    to Linear

    Modulation

    Resulting MS Tx

    Power per

    Timeslot afterPA Back-off

    from 1 Watt

    Max Allowed

    MS Tx Power

    per Timeslot notto exceed total

    power = 28 dBm

    Resulting Power

    Considering PA

    Back-off andTotal power

    1 2 28 37 28

    2 2 28 34 28

    3 2 28 32.3 28

    4 2 28 31 28

    5 2 28 30 28

    6 2 28 29.2 28

    7 2 28 28.6 28

    8 2 28 28 284

    5

    6

    7

    8

    Table 2 GMSK9

    10

    Number of

    Active Uplink

    Timeslots

    PA Back-off due

    to Linear

    Modulation

    Resulting MS Tx

    Power per

    Timeslot after

    PA Back-offfrom 1 Watt

    Max Allowed

    MS Tx Power

    per Timeslot not

    to exceed totalpower = 28 dBm

    Resulting Power

    Considering PA

    Back-off and

    Total power

    1 0 30 37 30

    2 0 30 34 30

    3 0 30 32.3 30

    4 0 30 31 30

    5 0 30 30 30

    6 0 30 29.2 29.2

    7 0 30 28.6 28.6

    8 0 30 28 28

    11

    12

    13

    14

    15

    16

    PA Back-off impacts17

    18

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    Figure 2 shows the link performance for 8-PSK with different output back off values1

    assuming an RF2108 power amplifier from RF Micro Devices. The performance for an ideal2

    power amplifier is also showed as reference. The results show that the impact on performance3

    from non-linearity in the PA is negligible for an output back off larger than 1 dB.4

    5

    Non-linearity in the PA will also affect the spectrum of the transmitted signal, especially the6spectrum leakage into adjacent channels. The spectrum in Figure 3 is obtained using a7

    linearized GMSK pulse. With a 2dB output back off value, this leakage is acceptable8

    considering that the implementation of the pulse shaping is not optimised. Further, the chosen9

    amplifier acts only as an example and larger margins to the GSM spectrum mask can be10

    achieved with other alternatives.11

    12

    6 8 10 12 14 16 18 20 22 24 2610

    3

    102

    101

    100

    RawBER

    C/I [dB

    ideal PA1dB output back off2dB output back off

    13

    Figure 2: Link Performance Degradation Due to Non linear PA.14

    15

    100 0 100 200 300 400 500 60080

    70

    60

    50

    40

    30

    20

    10

    0

    frequency [kHz]

    P.S.D.

    GSM spectrum mask

    Ideal PA

    Output back off 3 dBOutput back off 2 dBOutput back off 1 dB

    16

    Figure 3: Spectrum of Transmitted Signal17

    18

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    ATTACHMENT 41

    2

    Radio Link Adaptation34

    Link adaptation of modulation and channel coding is used in order to achieve the maximum5

    performance (optimize the throughput) under varying conditions. The modulation is adapted6between 8-PSK and GMSK while the channel coding is adapted between six different coding7

    cases for 8-PSK and four different cases for GMSK. These cases are detailed in Attachment8

    1 and are labeled PCS-1 through PCS-6 for 8-PSK and CS-1 through CS-4 for GMSK. For9

    the 8-PSK modulation, PCS-6 has the highest throughput while PCS-1 has the lowest.10

    Correspondingly, for GMSK the highest throughput case is CS-4 and the lowest CS-1.11

    Figure 1 shows the calculated throughput performance per time slot for 8-PSK without12

    diversity, using BLER curves assuming TU3 channel and frequency hopping using T=R*(1-13

    PB) where R= Maximum rate and PB=BLER (non-frequency hopping results are shifted ~1.514

    dB higher in C/I). The heavy line shows the throughput performance using link adaptation15

    between the various modes.16

    17

    The system simulation results given in Attachment 6 show the achieved user data rates using18

    this link adaptation technique.19

    20

    21

    22

    0 5 10 15 20 25 30 35 400

    10

    20

    30

    40

    50

    60

    70

    80

    C/I [dB])

    ThroughputS[kbps]

    PCS1

    PCS2

    PCS3

    PCS4

    PCS5

    PCS6

    23

    Figure 1. Calculated Ideal Link Adaptation Throughput per Timeslot24

    25

    The actual results achieved using both modulations in the link level simulations with ITU26

    channel models and diversity are shown in figure 2 (GMSK shown with dotted lines).27

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    1

    Figure 2. Link Adaptation Throughput per Timeslot for Ped A2

    3

    4

    5

    0 5 10 15 20 25 30 35 400

    10

    20

    30

    40

    50

    60

    70Pedestrian A 3 km/h with diversity

    C/I [dB]

    ThroughputS[kbps]

    PCS6

    PCS5

    PCS4

    PCS3

    PCS2

    PCS1

    CS4

    CS3

    CS2

    CS1

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    Attachment 51

    Guard Bands2

    3

    The co-existence of 136 HS carriers and 136 carriers in the same cell or adjacent cells has4

    been investigated. Figure 1 shows the definition of Guard Band with respect to 136 HS and5

    136 carriers. Note that the Guard band definition is the frequency between the channel6

    spacing of 136 HS to the channel spacing of 136; i.e. the center channel to channel spacing7

    is defined as 115 kHz plus the Guard Band as shown in figure 1. The cell planning for co-8

    existence is shown in Figure 2. Note that the worse case is in those cells where carrier E3 is9

    adjacent to 136 carrier D1.10

    11

    12

    13

    14

    15

    16

    17

    18

    19

    20

    21

    22

    23

    24

    25

    26

    27

    28

    29

    30

    31

    Figure 1. Definition of Guard Band Between 136 HS carriers and 136 Carriers.32

    33

    136 HS carriers Guard Band 136 carriers

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    1

    2

    3

    4

    5

    6

    7

    8

    9

    10

    11

    12

    13

    14

    15

    16

    17

    18

    19

    20

    21

    22

    23

    24

    Figure 2. Cell Planning Diagram for 136 HS carriers and 136 Carriers.25

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    The interference simulation results for the above co-existence case is shown in Figure 3. The1

    interference from 136 HS into the most interfered 136 channel (D1) is recorded. The solid2

    lines show 136 co-channel interference3

    (right-most curve) and 136 to 136 adjacent channel interference (left). The dashed lines show4

    the interference from 136 HS into 136 as a function of the guard band. Thus, if the guard5

    band is 50 kHz, the amount of interference from 136 HS into 136 is less than the co-channel6interference between 136 channels but greater than the adjacent channel interference between7

    136 channels. For a guard band of 100 kHz, the amount of interference from 136 HS into 1368

    is less than both the co-channel and adjacent channel interference between 136 channels.9

    10

    11

    12

    Figure 3. Interference with 136 HS and 136 Carriers13

    14

    15

    180 175 170 165 160 155 150 145 140 135 1300

    10

    20

    30

    40

    50

    60

    70

    80

    90

    100solid: co and adjacent interf, dashed: EDGE interf

    Interference power [dBW]

    c.d.f

    [%]

    200 kHz

    150 kHz

    100 kHz 50 kHz

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    Attachment 61

    System Level Simulations for 136 HS Outdoor2

    Static Capacity Simulations3

    4

    In order to evaluate the system performance of the 136 HS concept, static packet data5

    simulations have been performed. The following assumptions have been made:6

    1/3 reuse7

    No frequency hopping8

    Log-normal fading with standard deviation of 10 dB9

    Path loss according to M.1225 Models10

    Pedestrian A, Vehicular A50, and Vehicular A120 environments11

    Exponentially distributed packet size with a mean of 1600 bytes12

    2 Branch MRC diversity is used.13

    No power control is assumed14

    Ideal Link adaptation is performed every 100 ms, i.e. 5 coding blocks.15

    The time step of the simulator is 20 ms, corresponding to one coding block. This16

    means that the interference situation can change 5 times during one link adaptation17

    interval.18

    The throughput is measured after channel decoding.19

    The offered load was fixed for all cases.20

    The throughput per carrier distribution for ideal link adaptation is analyzed with fractional21

    loading from which the aggregate average throughput for users in the system is determined.22

    The spectrum efficiency is then evaluated (see attachment 7 for errors in link adaptation23

    signaling). The spectrum efficiency is calculated in the system simulations as:24

    [ ]cellMHzsMbitMW

    SN

    i

    i

    ///1

    ==25

    where Si is the throughput of user i, N is the number of served users, M is the number of cells26

    and W is the total available spectrum.27

    28

    Figure 1 shows the throughput distribution for ideal link adaptation, with 8-PSK coding29

    schemes PCS-1 to PCS-6 for link adaptation. This static simulation uses 40% load and30

    mobile station antenna diversity. Table 1 summarizes aggregate average throughput/user and31

    spectrum efficiency for this Pedestrian A simulation.32

    33

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    1

    Figure 1. Throughput distribution obtained from static simulation with PCS-6 through2

    PCS-1 for Pedestrian A Environment.3

    4

    5

    Mobile antenna

    Diversity

    Aggregate Average throughput/

    timeslot

    50.75 kbit/s

    Aggregate Average throughput/

    carrier

    406 kbit/s

    Spectrum efficiency 0.813 Mbit/s/MHz/site

    Table 1 Summary of static system simulation results for Pedestrian A.6

    7

    Figure 2 shows the throughput distribution the Vehicular A50 environment using the 8-PSK8

    simple equalizer. This static simulation uses 30% load and mobile station antenna diversity.9

    Table 2 summarizes aggregate average throughput/user and spectrum efficiency for this10

    Vehicular A50 simulation.11

    12

    0 100 200 300 400 500 6000

    0.1

    0.2

    0.3

    0.4

    0.5

    0.6

    0.7

    0.8

    0.9

    1

    C.D.F.

    Pedestrian A 3 km/h with diversity

    Throughput S [kbps]

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    1

    Figure 2. Throughput distribution obtained from static simulation with PCS-6 through2

    PCS-1 for Vehicular A50 Environment.3

    4

    5

    Mobile antenna

    Diversity

    Aggregate Average throughput/

    timeslot

    48.75 kbit/s

    Aggregate Average throughput/

    carrier

    390 kbit/s

    Spectrum efficiency 0.585 Mbit/s/MHz/site

    Table 2 Summary of static system simulation results for Vehicular A50 Environment.6

    7

    These results indicate that in the low speed vehicular environment an aggregate average8

    throughput greater than 384 kbit/s is obtained even with the simple equalizer. These results9

    would improve with the more complex equalizer.10

    11

    Figure 3 shows the throughput distribution the Vehicular A120 environment using the12

    improved channel tracking equalizer as described in Attachment 2. This static simulation13

    uses 10% load and mobile station antenna diversity. Table 3 summarizes aggregate average14

    throughput/user and spectrum efficiency for this Vehicular A120 simulation.15

    16

    0 50 100 150 200 250 300 350 400 450 5000

    0.1

    0.2

    0.3

    0.4

    0.5

    0.6

    0.7

    0.8

    0.9

    1

    C.D.F.

    Vehicular A 50 km/h with diversity

    Throughput S [kbps]

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    1

    2

    3

    Figure3. Throughput distribution obtained from static simulation with PCS-6 through4

    PCS-1 for Vehicular A120 Environment using improved channel tracking equalizer.5

    6

    7

    Mobile antenna

    Diversity

    Aggregate Average throughput/

    timeslot

    47.75 kbit/s

    Aggregate Average throughput/carrier

    382 kbit/s

    Spectrum efficiency 0.192 Mbit/s/MHz/site

    Table 3 Summary of static system simulation results for Vehicular A120 Environment8

    with improved channel tracking equalizer.9

    These results indicate that with the improved channel tracking equalizer, essentially 38410

    kbit/s aggregate average throughput can be provided even at 120 km/hr. Therefore the11

    objective of providing 384 kbit/s data service up to 100 km/hr is realized.12

    13

    Load Effects14

    15

    There will be a trade-off between the spectrum efficiency and the quality in the network.16

    System simulations show that by increasing the load (even up to 100%), the spectrum17

    efficiency will increase. However, the throughput for individual users will drop and may18

    result in low throughput. Figure 4 shows the sepctrum efficiency for the Pedestrian A19

    environment as a function of Load.20

    21

    0 50 100 150 200 250 300 350 400 450 5000

    0.1

    0.2

    0.3

    0.4

    0.5

    0.6

    0.7

    0.8

    0.9

    1

    C.D.F.

    Vehicular A 120 km/h with diversity

    C/I [dB]

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    1

    2

    3

    4

    Figure 4. Spectral Efficiency as a Function of Offered Load for Pedestrian A5

    Environment.6

    7

    Pedestrian A Spectral Efficiency Vs Load

    0

    0.2

    0.4

    0.6

    0.8

    1

    1.2

    1.4

    1.6

    1.8

    40% 50%

    Percent Load

    100%

    Mbit/s/MHz/site

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    1

    Coverage Simulations2

    3

    4

    Figure 5 shows how the throughput varies over the cell area for the Pedestrian environment.5

    Note that smart antennas are not assumed. Smart antennas will of course further increase the6coverage. The results are shown using an Eb/N0 distribution corresponding to 95% 1367

    speech coverage. The distance attenuation is calculated according to the ITU Channel8

    Models. The results include mobile antenna diversity (2 branch, maximum ratio combining).9

    10

    Figure 5 Coverage with mobile receiver diversity for Pedestrian A Environment11

    12

    13

    14

    15

    Figure 6 shows the results for the low speed Vehicular A50 Environment using the same16

    criteria as used in Figure 5. Figure 7 shows the results for the higher speed Vehicular A12017

    Environment using the same criteria as used in Figure 5. These results are for the simple18

    equalizer.19

    20

    0 100 200 300 400 500 6000

    0.1

    0.2

    0.3

    0.4

    0.5

    0.6

    0.7

    0.8

    0.9

    1

    C.D.F.

    Pedestrian A 3 km/h with diversity

    Throughput S [kbps]

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    1

    Figure 6 Coverage with mobile receiver diversity for Vehicular A50 Environment2

    3

    4

    5

    Figure 7 Coverage with mobile receiver diversity for Vehicular A120 Environment6

    7

    100 150 200 250 300 350 400 450 5000

    0.1

    0.2

    0.3

    0.4

    0.5

    0.6

    0.7

    0.8

    0.9

    1

    C.D.F.

    Vehicular A 50 km/h with diversity

    Throughput S [kbps]

    50 100 150 200 250 300 350 400 4500

    0.1

    0.2

    0.3

    0.4

    0.5

    0.6

    0.7

    0.8

    0.9

    1

    C.D.F.

    Vehicular A 120 km/h with diversity

    Throughput S [kbps]

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    Dynamic System Simulations1

    2

    In order to further evaluate the system performance of 136 HS using ITU Models, additional3

    dynamic packet data simulations have been performed. The following assumptions have been4

    made:5

    Interference Limited6

    1/3 reuse7

    No frequency hopping8

    Log-normal fading with standard deviation of 10 dB9

    Path loss according to M.1225 ITU Models10

    Pedestrian Channel A and B, Vehicular Channel A and B 50 km/hr, Vehicular11

    Channel A and B 120 km/hr environments simple equalizer12

    Power control is not used13

    2 Branch MRC diversity is used.14

    Ideal Link adaptation15

    The time step of the simulator is 20 ms, corresponding to one coding block. Each16

    radio block is explicitly simulated.17

    27 cell sites are used.18

    19

    These additional simulations provided more detailed analysis of the system.20

    21

    Traffic Model22

    A session-based traffic model is used. In-session users may be both active and idle. The23

    number of packets sent in a session is geometrically distributed with a mean of 10. A packet24

    is defined as for example a web page rather than an IP packet. Sessions arrive according to a25

    Poisson process. Packets are sent to user at the rate of 0.3 packets/sec.2627

    The bursty behavior of a packet data system is modeled using a truncated Pareto distribution28

    for the packet interarrival times.29

    30

    The packet (file) sizes are lognormally distributed with a mean of 12 kbytes.31

    32

    Simulation33

    Each radio block was explicitly simulated included queuing, retransmission, etc. The time34

    step of the simulator was 20 msec. The total simulation time is 300 sec. Ideal link35

    adaptation is used. Packets are scheduled using an ideal G-based scheduling algorithm.36

    37

    Dropping Criteria38

    A leaky bucket algorithm is used for user dropping. Each user is assigned a counter39

    initialized at 32. The counter is decreased by one for a NACK and increased by 2 (up to a40

    maximum of 32) for an ACK. The user is dropped if the counter reaches zero.41

    42

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    Performance Criteria1

    Since users in a packet data system will have different user throughputs, a quality measure is2

    defined. The quality measure for the 384 kbit/s service is that 95% of the users should have a3

    session throughput exceeding 10% of 384 kbit/s (or 38.4 kbit/s). The same quality measure4

    is used for the 64 kbit/s service which means that the system can be 100% loaded. Therefore5

    the spectral efficiency is obtained at 100% load for the 64 kbit/s service.6

    7

    The session throughput is defined as the total number of bits a user transmitted in a session8

    divided by the total time for the transmissions. Dropped users are given a session throughput9

    of zero even if they transmitted some data before being dropped.10

    11

    Simulations were performed with increasing load until the quality measure was reached. At12

    this load, the spectral efficiency is calculated.13

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    384 kbit/s Service Results1

    For the 384 kbit/s packet data service, Figure 8 shows the spectrum efficiency results (per2

    sector) versus the lowest 5% percentile session throughput with the quality measure indicated3

    by the horizontal dashed line. Results for Pedestrian A, Vehicular A50 and Vehicular A1204

    using the simple equalizer are shown. Note that the spectral efficiency per site would be5

    obtained by multiplying by 3.6

    7

    8

    9

    10

    Figure 8 Spectral Efficiency Performance for 384 kbit/s Packet Data Service11

    Environment A.12

    250 300 350 400 45010

    20

    30

    40

    50

    60

    70

    80384 kbps

    Spectral efficiency [kbps/MHz/sector]

    5%p

    ercentileofsessionthroughput

    [kbps]

    pedA3vehA50vehA120

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    1

    Figure 9 shows the loading results (in number of users per sector) for the 384 kbit/s packet2

    data service, versus the lowest 5% percentile session throughput with the quality measure3

    indicated by the horizontal dashed line. Results for Pedestrian A, Vehicular A50 and4

    Vehicular A120 are shown.5

    6

    7

    8

    9

    Figure 9 Loading Performance for 384 kbit/s Packet Data Service Environment A.10

    11

    12

    70 75 80 85 90 95 100 105 110 11510

    20

    30

    40

    50

    60

    70

    80384 kbps

    Average number of users per sector

    5%p

    ercentileofsessionthrou

    ghput[kbps]

    pedA3vehA50vehA120

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    1

    Figure 10 shows the spectrum efficiency results for the 384 kbit/s packet data service (per2

    sector) for the Pedestrian B, Vehicular B50 and Vehicular B120 environments using the same3

    criteria as in Figure 7 again using the simple equalizer. As indicated in Attachment 2, the4

    Vehicular A results should be taken as worse case for both Vehicular A and B when the5

    improved channel tracking equalizer is used. The results are shown versus the lowest 5%6percentile session throughput with the quality measure indicated by the horizontal dashed7

    line. Again it should be noted that the spectral efficiency per site would be obtained by8

    multiplying by 3.9

    10

    11

    12

    13

    Figure 10 Spectral Efficiency Performance for 384 kbit/s Packet Data Service using14

    simple equalizer for Environment B.15

    200 250 300 35010

    20

    30

    40

    50

    60

    70384 kbps

    Spectral efficiency [kbps/MHz/sector]

    5

    %percentileofsessionthroughput[kbps]

    pedB3vehB50vehB120

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    1

    Figure 11 shows the loading results (in number of users per sector) for the 384 kbit/s packet2

    data service for the Pedestrain B, Vehicular B50 and Vehicular B120 environments using the3

    same criteria as in Figure 10 again using the simple equalizer. The results are shown versus4

    the lowest 5% percentile session throughput with the quality measure indicated by the5

    horizontal dashed line.67

    8

    9

    Figure 11 Loading Performance for 384 kbit/s Packet Data Service using simple10

    equalizer for Environment B.11

    12

    Additional spectral efficiency results are given in the Deployment Matrix in Attachment 16.13

    14

    50 55 60 65 70 75 80 85 90 95 10010

    20

    30

    40

    50

    60

    70384 kbps

    Average number of users per sector

    5%percentileofsessionthroughput[kbps]

    pedB3vehB50vehB120

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    Attachment 71

    Control Signaling Overhead and Performance2

    In the following, it is assumed that the physical and RLC/MAC protocol layer structure of 136 HS is similar3

    to the structure of Enhanced General Packet Radio Service (EGPRS). The RLC/MAC protocol provides fast4medium access via a reservation based medium access scheme, supplemented by selective ARQ for efficient re-5

    transmission of erroneous data blocks. There are three groups of control channels: broadcast information6

    (PBCCH), medium access signaling (PCCCH) and fast associated signaling such as ACK/NACK messages7

    (PACCH). A comprehensive overview of the GPRS control channels and their use is provided in [2].8As for any HSD system overlaid on 136, the 136 HS broadcast and common control signaling (PBCCH and9

    PCCCH) can be placed on either an 136 HS carrier or on the 136 DCCH. For worse case analysis calculation10

    purposes, the PBCCH and PCCCH are considered to be on the 136 HS carrier itself.11

    For this scenario the PBCCH and PCCCH channels are multiplexed on time slot 0 in each TDMA frame. Out12

    of the blocks in the multiframe structure, 1/12 of the blocks are reserved for PBCCH while the remaining blocks13

    are shared between PCCCH and data. The number of blocks reserved for PCCCH is changed dynamically on a14

    per block basis, according to the need of random access and paging capacity.15

    16

    Worse Case Maximal user bit rate accounting for signaling overhead17

    The maximal radio interface bit rate for an 136 HS 200 kHz 8-slot mobile station is 8*69.2=553.6 kbps. The18

    actual user bit rate is lower due to broadcast and common control signaling, associated signaling and RLC/MAC19

    header overhead.20

    The control channel needed for broadcast and common control signaling (PBCCH and PCCCH) is21

    approximately 50% of time slot 0, which yields a remaining data rate of 553.6*7.5/8=519 kbps.22

    Associated control channels used for ACK/NACK signaling (also including forward link channel quality23

    reports sent on the reverse link) also reduces the user data rate. Assuming, that an acknowledgment block is sent24

    after every fifth block, the signaling overhead for a full duplex 8-slot service is 1/(8*5)=2.5%, since one25

    acknowledgment block is sufficient for all 8 time slots. Hence, the resulting data rate is 519*(1-0.025)=50626

    kbps.27

    Finally, to arrive at the actual user bit rate, the RLC/MAC overhead must be taken into account. The size of28

    the RLC/MAC headers are 24 information bits per block plus 16 CRC bits, yielding (24+16)/1304=3.1%29

    RLC/MAC overhead. Hence, the maximal 136 HS user bit rate in both forward and reverse links is30

    506*(1-0.031)=490.3 kbps. This figure is valid for the worst case when all signaling takes place on the 136 HS31

    carrier.32

    33

    Fast control signaling robustness34

    During packet transfer, fast and robust control signaling is essential for the delay performance. 136 HS uses35

    two main control messages, both of which are well protected by means of extensive channel coding.36

    1. ACK/NACK messages are sent on the PACCH logical channel, which always uses the most robust37

    modulation (GMSK) and the most robust channel coding, regardless what schemes are used for the data transfer.38

    The information is also protected by a 40 bit FIRE code, which provides excellent error detection and which39

    can also be used for error correction. Furthermore, if a PACCH block including acknowledgments for e.g. five40

    blocks is not received correctly, the next PACCH block will automatically include the old acknowledgments and41

    new acknowledgments. The data transfer can thus continue uninterrupted. Figure 1 depicts PACCH block error42distribution for a 45% loaded 1/3 system without antenna diversity, using the same models as in Attachment 6.43

    The performance can be further improved by using the 40 bit FIRE code for error correction, which was not44

    done in the simulation.45

    2. To inform the receiver what channel coding is used, a two bit message is included in each block. It is46

    block coded to 8 modulated bits, which makes this signaling considerably more robust than the data47

    transmission.48

    49

    Link adaptation signaling errors50

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    In the reverse link, a Channel Quality Report is included in each ACK/NACK block for use by link1

    adaptation and power control. Since the PACCH logical channel used for this signaling is very robust (see2

    above), errors are uncommon. However, should a block error occur, the error is detected and the modulation and3

    coding scheme used for the previous block is used also for the next. Therefore, the performance in case of4

    control channel errors can be approximated by the performance when using longer update intervals. In an5

    extreme case of 50% BLER on the PACCH (which only occurs for 1% of the mobiles according to Figure 1), a6

    nominal link adaptation update interval of 5 blocks corresponds to an actual update interval of 10 blocks. The7 degradation caused by this is not significant, as Figure 2 clearly shows.8

    Further, the information telling what coding scheme is used is sent using in-band signaling, for which9

    performance is considerably better than for data (see previous question). The very few errors in these messages10

    do not affect performance significantly.11

    The conclusion is thus that in the unlikely case of errors in the link adaptation control signaling loop, that is12

    handled very well by the link adaptation mechanism.13

    0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 10

    10

    20

    30

    40

    50

    60

    70

    80

    90

    100

    C.D.F.

    [%]

    BLER14

    Figure 1. Block error rate distribution for PACCH in a 1/3 reuse system with 45% load15

    0 10 20 30 40 50 60 700

    10

    20

    30

    40

    50

    60

    70

    80

    90

    100

    C.D.F.[%]

    Throughput [kbps]

    20 RLC blocks update interval10 RLC blocks update interval5 RLC blocks update interval

    16

    Figure 2. User throughput distribution per timeslot for different link adaptation update17

    intervals in a 1/3 reuse system with 45% load18

    19

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    Admission Control1

    136 HS as well as all other data systems need admission control and congestion control algorithms to prevent2

    the system from producing unacceptable packet delays. Admission control prevents a new user from entering the3

    system if the system is already fully loaded, whereas congestion control drops users that cannot be served4

    without causing unacceptable packet delay.5

    6

    136 HS admission control scheme7

    The 136 HS protocol includes means for continuously monitoring system characteristics such as queue8

    lengths, number of re-transmissions of a certain packet, number of users in different cells etc. Such9

    characteristics are the preferred information on which admission control is based. The actual algorithm is vendor10

    specific and is not limited by the RTT.11

    The admission control algorithm is preferably supplemented by a congestion control algorithm that drops a12

    user for which the link quality is low enough to cause excessive block re-transmissions.13

    14

    References15

    [1]. ETSI, GSM 03.64, Overall description of the General Packet Radio Service (GPRS) Radio Interface,16

    1997.17

    [2]. J. Cai and D. Goodman, General Packet Radio Service in GSM, IEEE Communications Magazine,18October 1997, Vol. 35, No. 10.19

    [3]. H. Olofsson, J. Nslund, J. Skld, Interference Diversity Gain in Frequency Hopping GSM, in20Proceedings of the 45

    thIEEE Vehicular Technology Conference (VTC95), 1995, pp. 102-106.21

    [4]. H. Olofsson et al, Improved Interface Between Link Level and System Level Simulations Applied to22GSM, in Proceedings of the 6

    thIEEE International Conference on Universal Personal Communications23

    (ICUPC97), 1997, pp. 79-83.24

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    Attachment 81

    Physical Layer Simulation Results2

    Performance without Frequency Hopping TU3 Environment3

    4

    Performance for PCS-1 to PCS-6 without frequency hopping in a Typical Urban environment5

    is depicted in Figure 1 and Figure 2 (data rates shown per time slot). The velocity is 3 km/h6

    (900 MHz). No diversity is assumed.7

    0 5 10 15 20 25 30 3510

    3

    102

    101

    100

    BLER

    C/I [dB]

    PCS1 (22.8 kbps)PCS2 (34.3 kbps)PCS3 (41.25 kbps)PCS4 (51.6 kbps)PCS5 (57.35 kbps)PCS6 (69.2 kbps)

    8

    Figure 1. BLER Performance for PCS-1 to PCS-6 without frequency hopping (C/I).9

    0 5 10 15 20 25 30 3510

    3

    102

    101

    100

    BLER

    Eb/N

    0[dB] (E

    b= Energy per modulated bit)

    PCS1 (22.8 kbps)

    PCS2 (34.3 kbps)PCS3 (41.25 kbps)PCS4 (51.6 kbps)PCS5 (57.35 kbps)PCS6 (69.2 kbps)

    10

    Figure 2. BLER Performance for PCS-1 to PCS-6 without frequency hopping11

    (Eb/No).12

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    Performance with Frequency Hopping TU3 Environment1

    2

    Performance for PCS-1 to PCS-6 with frequency hopping in a Typical Urban environment is3

    depicted in Figure 3 and Figure 5 (data rates are given per time slot), while the performance4

    for CS-1 to CS-4 (which replaces ECS-5 to ECS-8) is depicted in Figure 4 and Figure 6. The5

    velocity is 3 km/h (900 MHz). No diversity is assumed.6

    7

    0 5 10 15 20 25 30 3510

    3

    102

    101

    100

    BLER

    C/I [dB]

    PCS1 (22.8 kbps)PCS2 (34.3 kbps)PCS3 (41.25 kbps)PCS4 (51.6 kbps)PCS5 (57.35 kbps)PCS6 (69.2 kbps)

    8

    Figure 3. BLER Performance for PCS-1 to PCS-6 with frequency hopping (C/I).9

    10

    0 5 10 15 20 25 30 3510

    4

    103

    102

    101

    100

    C/I [dB]

    BLER

    CS1 (11.2 kbps)

    CS2 (14.5 kbps)

    CS4 (22.8 kbps)

    CS3 (16.7 kbps)

    11

    Figure 4. BLER Performance for CS-1 to CS-4 with frequency hopping (C/I).12

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    0 5 10 15 20 25 30 3510

    3

    102

    101

    100

    BLER

    Eb/N

    0[dB] (E

    b= Energy per modulated bit)

    PCS1 (22.8 kbps)PCS2 (34.3 kbps)PCS3 (41.25 kbps)PCS4 (51.6 kbps)PCS5 (57.35 kbps)PCS6 (69.2 kbps)

    1

    Figure 5. BLER Performance for PCS-1 to PCS-6 with frequency hopping (Eb/No).2

    0 5 10 15 20 25 30 3510

    4

    103

    102

    101

    100

    Eb/No [dB] (Eb=Energy per modulated bit)

    BLER

    CS1 (11.2 kbps)

    CS2 (14.5 kbps)

    CS4 (22.8 kbps)

    CS3 (16.7 kbps)

    3

    4

    Figure 6. BLER Performance for CS-1 to CS-4 with frequency hopping (Eb/No).5

    6

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    Performance of 8-PSK with ITU Pedestrian A and B channels1

    2

    Performance for 8-PSK without frequency hopping but with antenna diversity in an ITU3

    Outdoor to Indoor and Pedestrian A coverage limited environment is depicted in Figure 74

    (note that the BLER is plotted versus energy per symbol (Es/No) therefore Eb/No would be5

    obtained by reducing these numbers by 4.77 dB). The interference limited performance is6

    shown in Figure 8. The velocity is 3 km/h (1900 MHz). These results were obtained using a7

    simple equalizer.8

    9

    10

    11

    Figure 7. BLER Performance for PCS-1 to PCS-6 in ITU Outdoor to Indoor and12

    Pedestrian A Coverage Limited Environment .13

    14

    15

    0 5 10 15 20 25 30 35 4010

    2

    101

    100

    outindoor pedest A, 3km/h, 2br ,no FH

    Es/No [dB] (Es=energy per modulated symbol)

    BLER(blockerrorrate

    )

    PCS1PCS2PCS3PCS4PCS5PCS6

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    1

    Figure 8. BLER Performance for PCS-1 to PCS-6 in ITU Outdoor to Indoor and2

    Pedestrian A Interference Limited Environment.3

    4

    The performance for Pedestrian Channel B under the same conditions is shown in Figure 95

    and Figure 10.6

    7

    0 5 10 15 20 25 30 3510

    2

    101

    100

    outindoor pedest A, 3km/h, 2br ,no FH

    C/I [dB]

    BLER(blockerrorrate)

    PCS1PCS2PCS3PCS4PCS5PCS6

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    1

    Figure 9. BLER Performance for PCS-1 to PCS-6 in ITU Outdoor to Indoor and2

    Pedestrian B Coverage Limited Environment .3

    4

    5

    Figure 10. BLER Performance for PCS-1 to PCS-6 in ITU Outdoor to Indoor and6

    Pedestrian B Interference Limited Environment.7

    8

    9

    10

    0 5 10 15 20 25 30 35 4010

    2

    101

    100

    outindoor pedest B, 3km/h, 2br ,no FH

    Es/No [dB] (Es=energy per modulated symbol)

    BLER(blockerrorrate)

    PCS1PCS2PCS3PCS4PCS5PCS6

    0 5 10 15 20 25 30 3510

    2

    101

    100

    outindoor pedest B, 3km/h, 2br ,no FH

    C/I [dB]

    BLER(blockerrorrate)

    PCS1PCS2PCS3PCS4PCS5PCS6

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    Performance of 8-PSK with ITU Vehicular A50 channel1

    Performance for 8-PSK without frequency hopping but with antenna diversity in an ITU2

    Vehicular A50 coverage limited environment using the simple 8-PSK equalizer is depicted3

    in Figure 11 (note that the BLER is plotted versus energy per symbol (Es/No) therefore4

    Eb/No would be obtained by reducing these numbers by 4.77 dB). The interference limited5

    performance is shown in Figure 12. The velocity is 50 km/h (1900 MHz).6

    7

    Figure 11. BLER Performance for 8-PSK simple equalizer in ITU Vehicular A508

    Coverage Limited Environment9

    Figure 12. BLER Performance for 8-PSK simple equalizer in ITU Vehicular A5010

    Interference Limited Environment.11

    0 5 10 15 20 25 30 35 4010

    2

    101

    100

    vehicular A, 50km/h, 2br ,no FH

    Es/No [dB] (Es=energy per modulated symbol)

    BLER

    (blockerrorrate)

    PCS1PCS2PCS3PCS4PCS5PCS6

    0 5 10 15 20 25 30 3510

    2

    101

    100vehicular A, 50km/h, 2br ,no FH

    C/I [dB]

    BLER(blockerrorrate)

    PCS1PCS2PCS3PCS4PCS5PCS6

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    Performance of 8-PSK with ITU Vehicular A120 channel1

    Performance for 8-PSK without frequency hopping but with antenna diversity in an ITU2

    Vehicular A120 coverage limited environment is depicted in Figure 13 (note that the BLER3

    is plotted versus energy per symbol (Es/No) therefore Eb/No would be obtained by reducing4

    these numbers by 4.77 dB). The interference limited performance is shown in Figure 14.5

    The velocity is 120 km/h (1900 MHz). Note that with using the the improved channel6

    tracking equalizer described in Attachment 2, all the coded schemes can be used. The7

    performance of the simple equalizer for this environment is given in Attachment 2.8

    9

    Figure 13. BLER Performance for 8-PSK improved equalizer in ITU Vehicular A12010

    Coverage Limited environment11

    12

    Figure 14. BLER Performance for 8-PSK improved equalizer in ITU Vehicular A12013

    Interference Limited environment14

    0 5 10 15 20 25 30 3510

    2

    101

    100

    vehicular A, 120km/h, 2br

    Es/No [dB] (Es=energy per modulated symbol)

    BLER(blockerrorrate)

    PCS1PCS2PCS3PCS4PCS5PCS6

    0 5 10 15 20 25 30 3510

    2

    101

    100

    vehicular A, 120km/h, 2br

    C/I [dB]

    BLER(blockerrorrate)

    PCS1PCS2PCS3PCS4PCS5PCS6

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    Performance of 8-PSK with ITU Vehicular B120 channel1

    Performance for 8-PSK without frequency hopping but with antenna diversity in an ITU2

    Vehicular B120 coverage limited environment is depicted in Figure 15 (note that the BLER is3

    plotted versus energy per symbol (Es/No) therefore Eb/No would be obtained by reducing4

    these numbers by 4.77 dB). The interference limited performance is shown in Figure 16.5

    The velocity is 120 km/h (1900 MHz). Note that with using the the improved channel6

    tracking equalizer described in Attachment 2, all the coded schemes can be used. The7

    performance of the simple equalizer for this environment is given in Attachment 2.8

    9

    Figure 15. BLER Performance for 8-PSK improved equalizer in ITU Vehicular B12010

    Coverage Limited environment11

    12

    Figure 16. BLER Performance for 8-PSK improved equalizer in ITU Vehicular B12013

    Interference Limited environment14

    0 5 10 15 20 25 30 3510

    2

    101

    100

    vehicular B, 120km/h, 2br ,Tracking DFSE

    Es/No [dB] (Es=energy per modulated symbol)

    BLER(blockerrorrate)

    PCS1PCS2PCS3PCS4PCS5PCS6

    0 5 10 15 20 25 30 3510

    2

    101

    100 vehicular B, 120km/h, 2br ,Tracking DFSE

    C/I [dB]

    BLER(blockerrorrate)

    PCS1PCS2

    PCS3PCS4PCS5PCS6

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    Performance of GMSK with ITU Pedestrian A and B channels1

    Performance for GMSK without frequency hopping but with antenna diversity in an ITU2

    Outdoor to Indoor and Pedestrian A coverage limited environment is depicted in Figure 173

    (note that the BLER is plotted versus energy per symbol (Es/No) however with GMSK there4

    is 1 bit per symbol and therefore is equal to Eb/No). The interference limited performance is5

    shown in Figure 18. The equivalent performance for the Pedestrian B channel is shown in6

    Figure 19 and Figure 20. The velocity is 3 km/h (1900 MHz). These results were obtained7

    using a simple equalizer.8

    Figure 17. BLER Performance for GMSK simple equalizer in ITU Pedestrian A9

    Coverage Limited Environment10

    11

    Figure 18. BLER Performance for GMSK simple equalizer in ITU Pedestrian A12

    Interference Limited Environment13

    0 5 10 15 20 25 30 3510

    2

    101

    100 outindoor pedest A, 3km/h, 2br ,no FH

    C/I [dB]

    BLER(blockerrorrate)

    CS1CS2CS3CS4

    0 5 10 15 20 25 30 3510

    2

    101

    100

    outindoor pedest A, 3km/h, 2br, no FH

    Es/No [dB] (Es=energy per modulated symbol)

    BLER

    (blockerrorrate)

    CS1CS2CS3CS4

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    1

    Figure 19. BLER Performance for GMSK simple equalizer in ITU Pedestrian B2

    Coverage Limited Environment3

    4

    Figure 20. BLER Performance for GMSK simple equalizer in ITU Pedestrian B5

    Interference Limited Environment6

    0 5 10 15 20 25 30 3510

    2

    101

    100

    outindoor pedest B, 3km/h, 2br, no FH

    Es/No [dB] (Es=energy per modulated symbol)

    BLER(blockerrorrate)

    CS1CS2CS3CS4

    0 5 10 15 20 25 30 3510

    2

    101

    100

    outindoor pedest B, 3km/h, 2br ,no FH

    C/I [dB]

    BLER(blockerrorrate)

    CS1CS2CS3CS4

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    Performance of GMSK with ITU Vehicular A channels1

    Performance for GMSK without frequency hopping but with antenna diversity in an ITU2

    Vehicular A50 coverage limited environment is depicted in Figure 21 (note that the BLER is3

    plotted versus energy per symbol (Es/No) however with GMSK there is 1 bit per symbol and4

    therefore is equal to Eb/No). The interference limited performance is shown in Figure 22.5

    The velocity is 50 km/h (1900 MHz). Likewise, performance of GMSK for Vehicular A1206

    channels is shown in Figures 23 and 24 where the velocity is 120 km/h (1900 MHz). These7

    results were obtained using a simple equalizer.8

    9

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    1

    Figure 21. BLER Performance for GMSK simple equalizer in ITU Vehicular A502

    Coverage Limited Environment3

    4

    Figure 22. BLER Performance for GMSK simple equalizer in ITU Vehicular A505

    Interference Limited Environment6

    0 5 10 15 20 25 30 3510

    2

    101

    100

    vehicular A, 50km/h, 2br ,no FH

    Es/No [dB] (Es=energy per modulated symbol)

    BLER(blockerrorrate)

    CS1CS2CS3CS4

    0 5 10 15 20 25 30 3510

    2

    101

    100

    vehicular A, 50km/h, 2br ,no FH

    C/I [dB]

    BLER(blockerrorrate)

    CS1CS2CS3CS4

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    1

    Figure 23. BLER Performance for GMSK simple equalizer in ITU Vehicular A1202

    Coverage Limited Environment3

    4

    Figure 24. BLER Performance for GMSK simple equalizer in ITU Vehicular A1205

    Interference Limited Environment6

    0 5 10 15 20 25 30 3510

    2

    101

    100

    vehicular A, 120km/h, 2br ,no FH

    Es/No [dB] (Es=energy per modulated symbol)

    BLER(blockerrorrate)

    CS1CS2CS3CS4

    0 5 10 15 20 25 30 35 4010

    2

    101

    100

    vehicular A, 120km/h, 2br ,no FH

    C/I [dB]

    BLER(blockerrorrate)

    CS1CS2CS3CS4

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    Performance of GMSK with ITU Vehicular B channels1

    Performance for GMSK without frequency hopping but with antenna diversity in an ITU2

    Vehicular B50 coverage limited environment is depicted in Figure 25 (note that the BLER is3

    plotted versus energy per symbol (Es/No) however with GMSK there is 1 bit per symbol and4

    therefore is equal to Eb/No). The interference limited performance is shown in Figure 26.5

    The velocity is 50 km/h (1900 MHz). Likewise, performance of GMSK for Vehicular B1206

    channels is shown in Figures 27 and 28 where the velocity is 120 km/h (1900 MHz). These7

    results were obtained using a simple equalizer.8

    9

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    1

    Figure 25. BLER Performance for GMSK simple equalizer in ITU Vehicular B502

    Coverage Limited Environment3

    4

    Figure 26. BLER Performance for GMSK simple equalizer in ITU Vehicular B505

    Interference Limited Environment6

    0 5 10 15 20 25 30 3510

    2

    101

    100

    vehicular B, 50km/h, 2br ,no FH

    Es/No [dB] (Es=energy per modulated symbol)

    BLER

    (blockerrorrate)

    CS1CS2CS3CS4

    0 5 10 15 20 25 30 3510

    2

    101

    100

    vehicular B, 50km/h, 2br ,no FH

    C/I [dB]

    BLER

    (blockerrorrate)

    CS1CS2CS3CS4

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    1

    Figure 27. BLER Performance for GMSK simple equalizer in ITU Vehicular B1202

    Coverage Limited Environment3

    4

    Figure 28. BLER Performance for GMSK simple equalizer in ITU Vehicular B1205

    Interference Limited Environment6

    7

    8

    0 5 10 15 20 25 30 35 4010

    2

    101

    100

    vehicular B, 120km/h, 2br ,no FH

    Es/No [dB] (Es=energy per modulated symbol)

    BLER

    (blockerrorrate)

    CS1CS2CS3CS4

    0 5 10 15 20 25 30 35 4010

    2

    101

    100

    vehicular B, 120km/h, 2br ,no FH

    C/I [dB]

    BLER

    (blockerrorrate)

    CS1CS2CS3CS4

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    Attachment 91

    136 HS Coverage with respect to 136 voice (from link budgets)2

    3

    Table 1. General assumptions4

    Vehicular

    Maximum peak power 28 dBm

    Path loss 128.1 + 37.6*log10(d), din

    kilometers

    Log-normal fade margin 11.3 dB

    Handoff gain 4.7 dB

    5

    Table 2. Assumptions for IS-1366

    Required Eb/(N0+I0) 17.0 dB

    Antenna diversity gain in uplink 6.0 dB

    7

    Table 3. Assumptions for 136 HS8

    Frequency hopping No frequency hopping

    BLER level in EGPRS 10 %

    Antenna diversity gain Included in Eb/No

    9

    Table 4. Additional assumptions for data terminals10

    Mobile antenna gain (=lower body loss) 2.0 dBi (0.0 dBi for speech

    terminals)

    Antenna diversity in the mobile, gain Included in Eb/No

    11

    Mobile antenna gain of 2.0 dBi is used because data terminals will not be used very close to12

    the users head and therefore the body loss can be assumed to be lower than for speech13

    terminals. Receiver antenna diversity has been assumed for data terminals which is included14

    in Eb/No.15

    16

    136 HS Link Budget Appendix 4 shows the link budgets for the vehicular environment for17

    both the 384 kbit/s and 144 kbit/s packet data services, EGPRS/PCS-4 (384 kbps) and18

    EGPRS/PCS-1 (144 kbit/s). 136 HS Link Budget Appendix 5 shows the link budget for an19

    asymmetric case, vehicular environment, EGPRS/PCS-4 (downlink, 384 kbit/s) & CS-320

    (uplink, 134 kbit/s). 136 HS Link Budget Appendix 6 shows the link budget for vehicular21

    environment, EGPRS/PCS-3 (330 kbps). Table 5 shown below is a link budget for IS-13622

    speech which is used for comparison.23

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    Table 5. Link Budget Template for IS-136 Speech. Use for comparison.1Item Forward Link Reverse Link

    Test environment

    Test service

    Multipath channel class

    (a0) Average transmitter power per traffic channel

    (a1) Maximum transmitter power per traffic channel(a2) Maximum total transmitter power 35.00 dBm 28.00 dBm

    (b) Cable, connector, and combiner losses (enumerate sources) 2.00 dB 0.00 dB

    (c) Transmitter antenna gain 13.00 dBi 0.00 dBi

    (d1) Transmitter e.i.r.p. per traffic channel 46.00 dBm 28.00 dBm

    (d2) Total Transmitter e.i.r.p. = (a2-b+c) 46.00 dBm 28.00 dBm

    (e) Receiver antenna gain 0.00 dBi 13.00 dBi

    (f) Cable and connector losses 0.00 dB 2.00 dB

    (g) Receiver noise figure 5.00 dB 5.00 dB

    (h) Thermal noise density -174.00 dBm/Hz -174.00 dBm/Hz

    (i) Receiver interference density (NOTE 1) 0 mW/Hz 0 mW/Hz

    (j) Total effective noise plus interference density

    = 10 log ( 10((h+g)/10) + i )

    -169.00 dBm/Hz -169.00 dBm/Hz

    (k) Information rate (10 log (Rb)) 46.87 dB(Hz) 46.87 dB(Hz)

    (l) Required Eb/(N0 + I0) 17.00 dB 17.00 dB(m) Receiver sensitivity = (j+k+l) -105.13 dB -105.13 dB

    (n) Hand-off gain 4.70 dB 4.70 dB

    (o) Explicit diversity gain 0.00 dB 6.00 dB

    (o) Other gain 0.00 dB 0.00 dB

    (p) Log-normal fade margin (90% cell edge reliability) 11.30 dB 11.30 dB

    (q) Maximum path loss

    = ( d1 - m + (e - f) + o + n + o - p )

    144.53 dB 143.53 dB

    Maximum Range 2727 m 2565 m

    Range for data terminals

    Data terminal antenna gain (lower body loss)

    Mobile Station antenna diversity gain

    Maximum path loss for data terminals

    Maximum range

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    1

    According to the vehicular A50 link budgets, the downlink range of bit rate 384 kbit/s with2

    136 HS is about 82.5 % of IS-136 uplink speech range. It has been assumed that downlink is3

    the limiting factor for 136 HS range. If asymmetric connection is considered, more coding4

    can be applied on the uplink to increase its range. It should also be noticed that the service5area of 384 kbit/s is more than 0.825*0.825 of IS-136 cell area because the coverage areas of6

    adjacent IS-136 cells must be overlapping to guarantee service at cell border with log normal7

    fading. The downlink range of 136 HS PCS-3 330 kbit/s is approximately 96.6 % of IS-1368

    uplink speech range. Therefore, 136 HS PCS-3 packet data services with 330 kbit/s can be9

    offered essentially with the same coverage as IS-136 speech.10

    11

    For the 144 kbit/s data service, EGPRS/PCS-1 can be used to provide the capability.12

    According to the A120 Vehicular link budgets in Appendix 4, the downlink range for the 14413

    kbit/s service for 136 HS is about 126% of the IS-136 uplink speech range.14

    15

    The link budgets show maximum path loss and maximum range figures with terminal16diversity.17

    18

    Summary of 136 HS packet data ranges and coverage areas is shown in Table 6. The 136 HS19

    Outdoor/Vehicular analysis in Table 6 includes terminal diversity gains.20

    21

    Table 6. Maximum range of 136 HS compared to IS-136 speech uplink range (from link22

    budgets)23

    24

    Range / m Coverage area / m2

    136 HS /CS-3 134 kbit/s (uplink) 101 % x IS-136 102 % x IS-136 cell

    136 HS /PCS-3 330 kbit/s (downlink) 96.6 % x IS-136 more than 93 % of IS-136 cell

    136 HS /PCS-4 384 kbit/s (downlink) 82.5 % x IS-136 more than 68 % of IS-136 cell

    136 HS /PCS-1 144 kbit/s (downlink) 126 % x IS-136 more than 158 % of IS-136

    25

    26

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    Attachment 101

    Deployment Model Results Matrix, Spectrum Efficiency Models2

    3

    It is necessary to use the value for the Total Number of Cell Sites for Coverage4Efficiency for the Spectrum Efficiency computations to meet the coverage5requirements specified in the Deployment Model for each Test Environment.6

    7

    The Deployment Model Results Matrix for 136 and 136+ are presented in Tables 18and 2, respectively.9

    Table 1. Deployment Model Results Matrix for 1361011

    MarketRequirement

    TotalNumber ofCell Sites

    Total Numberof RF

    Channels

    Number of VoiceChannels/RF

    Channel

    CoverageEfficiency(km

    2/site)

    SpectrumEfficiency

    (Mbits/s/MHz/site)

    SpectrumEfficiency

    (E/MHz/site

    CoverageEfficiency

    4.33 26 3 34.6 - -Vehicular

    SpectrumEfficiency

    - 520 3 - 0.228 20.25

    CoverageEfficiency

    369 439 3 0.075(1)

    0.424(2)

    - -Pedestrian-Outdoor to

    Indoor SpectrumEfficiency

    - 2090 3 - 0.010 0.47

    CoverageEfficiency

    4 32 3 0.197 - -Indoor

    SpectrumEfficiency

    - 196 3 - .09344 8.33

    12

    (1)Coverage Efficiency for Pedestrian Environment for Outdoor to Indoor Coverage13

    (2)Coverage Efficiency for Pedestrian Environment for Outdoor Coverage14

    15

    16

    Table 2. Deployment Model Results Matrix for 136+1718

    MarketRequirement

    TotalNumber ofCell Sites

    Total Numberof RF

    Channels

    Number of VoiceChannels/RF

    Channel

    CoverageEfficiency(km

    2/site)

    SpectrumEfficiency

    (Mbits/s/MHz/site)

    SpectrumEfficiency

    (E/MHz/cel

    CoverageEfficiency

    6.03 36 3 24.89 - -Vehicular

    SpectrumEfficiency

    - 540 3 - 0.256 14.52

    CoverageEfficiency

    564 672 3 0.049(1)

    0.276(2)- -Pedestrian-

    Outdoor toIndoor Spectrum

    Efficiency- 2688 3 - 0.0118 0.30

    CoverageEfficiency

    6 36 3 0.110 - -Indoor

    SpectrumEfficiency

    - 204 3 - .09696 5.56

    19(1)

    Coverage Efficiency for Pedestrian Environment for Outdoor to Indoor Coverage20(2)

    Coverage Efficiency for Pedestrian Environment for Outdoor Coverage2122

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    General Assumptions:12

    The spectrum efficiency results for voice capacity, E/MHz/Site, are bounded by the3capacity calculations presented in Method 1 of Attachment 17.4

    5

    6

    The information rate per RF channel for 136 is 28800 bits/s, i.e. 9600 bits/s per7server.8The information rate per RF channel for 136+ is 43200 bits/s, i.e. 14400 bits/s per9server.10

    11

    Examples of Information Rate Calculations for each Environment1213

    Vehicular14

    15

    For the Vehicular Test Environment, it is assumed that 3-sector site configurations16are used for the coverage area.17

    18

    For 136:19Erlangs per Sector = 1312.5 (System Erlangs) / (4.33 (Total Number of Cell Sites) *203 (Sectors per Site)) = 101.04 Erlangs per Sector21Total Number of Servers Required per Sector for 101.04 Erlangs @ 1% Blocking =2211823Total Number of RF Channels per Sector = 40 (119 Servers and 1 DCCH)24Information Rate per Sector = 119 (Servers) * 9600 = 1.1424 Mbits/s25Information Rate per Site = 1.1424 * 3 = 3.4272 Mbits/s26

    Spectrum Efficiency = 3.4272 Mbits/s / (15 MHz) = 0.228 Mbits/s/MHz/site2728

    For 136+:29Erlangs per Sector = 1312.5 (System Erlangs) / (6.03 (Total Number of Cell Sites) *303 (Sectors per Site)) = 72.55 Erlangs per Sector31Total Number of Servers Required per Sector for 72.55 Erlangs @ 1% Blocking = 8832Total Number of RF Channels per Sector = 30 (89 Servers and 1 DCCH)33Information Rate per Sector = 89 (Servers) * 9600 = 1.2816 Mbits/s34Information Rate per Site = 1.1424 * 3 = 3.8448 Mbits/s35Spectrum Efficiency = 3.8448 Mbits/s / (15 MHz) = 0.25632 Mbits/s/MHz/site36

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    Pedestrian1

    2

    For the Pedestrian-Outdoor to Indoor Test Environment, it is assumed that the3indoor coverage area (25 km

    2) is wholly contained within the outdoor coverage area4

    (40 km2

    ). It is assumed that the Number of Required System Erlangs for this 25 km2

    5

    includes both the indoor and outdoor market requirements. It is assumed that6omnidirectional site configurations are used for the indoor coverage area (25 km

    2)7

    contained within the outdoor coverage area and that 3-sector configurations are8used for the remaining (15 km

    2) outdoor coverage area.9

    10

    For 136, the Pedestrian indoor coverage area requires 334 sites and the outdoor11coverage area requires 35 sites for a Total Number of Cell Sites of 369. For 136+,12the indoor coverage area requires 510 sites and the outdoor coverage area requires1354 sites for a Total Number of Cell Sites of 564.14For 136:15

    For 25 km2

    (Outdoor and Indoor):16 Erlangs per Sector = 2190 (System Erlangs) / (334 (Total Number of Cell Sites)) =176.56 Erlangs per Site18Total Number of Servers Required per Site for 6.56 Erlangs @ 1% Blocking = 1319Total Number of RF Channels per Site = 5 (14 Servers and 1 DCCH)20Information Rate per Site = 14 (Servers) * 9600 = 0.1344 Mbits/s21Spectrum Efficiency = 0.1344 Mbits/s / (15 MHz) = 0.00896 Mbits/s/MHz/site22

    23

    For 15 km2

    (Outdoor)24Erlangs per Sector = 450 (System Erlangs) / (35 (Total Number of Cell Sites) * 325(Sectors per Site)) = 4.29 Erlangs per Sector26

    Total Number of Servers Required per Sector for 4.29 Erlangs @ 1% Blocking = 1027 Total Number of RF Channels per Sector = 4 (11 Servers and 1 DCCH)28Information Rate per Sector = 11 (Servers) * 9600 = 0.106 Mbits/s29Information Rate per Site = 0.106 * 3 = 0.317 Mbits/s30Spectrum Efficiency = 0.317 Mbits/s / (15 MHz) = 0.021 Mbits/s/MHz/site31

    32

    Resultant Spectrum Efficiency for 136:33((0.00896 Mbits/s/MHz/site * 334 Sites) + (0.021 Mbits/s/MHz/site * 35 Sites)) / 36934Sites =350.010 Mbits/s/MHz/site36

    37

    For 136+:38 For 25 km2

    (Outdoor and Indoor):39Erlangs per Sector = 2190 (System Erlangs) / (510 (Total Number of Cell Sites)) =404.29 Erlangs per Site41Total Number of Servers Required per Site for 4.29 Erlangs @ 1% Blocking = 1042Total Number of RF Channels per Site = 4 (11 Servers and 1 DCCH)43Information Rate per Site = 11 (Servers) * 14400 = 0.1584 Mbits/s44Spectrum Efficiency = 0.1584 Mbits/s / (15 MHz) = 0.01056 Mbits/s/MHz/site45

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    1

    For 15 km2

    (Outdoor)2Erlangs per Sector = 450 (System Erlangs) / (54 (Total Number of Cell Sites) * 33(Sectors per Site)) = 2.78 Erlangs per Sector4Total Number of Servers Required per Sector for 2.78 Erlangs @ 1% Blocking = 85

    Total Number of RF Channels per Sector = 3 (8 Servers and 1 DCCH)6 Information Rate per Sector = 8 (Servers) * 14400 = 0.1152 Mbits/s7Information Rate per Site = 0.1152 * 3 = 0.3456 Mbits/s8Spectrum Efficiency = 0.3456 Mbits/s / (15 MHz) = 0.02304 Mbits/s/MHz/site9

    10

    Resultant Spectrum Efficiency for 136+:11((0.01056 Mbits/s/MHz/site * 510 Sites) + (0.02304 Mbits/s/MHz/site * 54 Sites)) /12564 Sites =130.0118 Mbits/s/MHz/site14

    15

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    Indoor1

    2

    For the Indoor Test Environment, it is assumed that omnidirectional site3configurations are used and that the base stations (radiating elements) are not4

    deployed on partial floors.56

    For 136:7Erlangs per Site = 500 (System Erlangs) / (4 (Total Number of Cell Sites)) = 1258Erlangs per Site9Total Number of Servers Required per Site for 125 Erlangs @ 1% Blocking = 14410Total Number of RF Channels per Sector = 49 (146 Servers and 1 DCCH)11Information Rate per Sector = 146 (Servers) * 9600 = 1.4016 Mbits/s12Information Rate per Site = 1.4016 Mbits/s13Spectrum Efficiency = 1.4016 Mbits/s / (15 MHz) = 0.09344 Mbits/s/MHz/site14

    15

    For 136+:16Erlangs per Sector = 500 (System Erlangs) / (6 (Total Number of Cell Sites)) = 83.3317Erlangs per Sector18Total Number of Servers Required per Site for 83.33 Erlangs @ 1% Blocking = 10019Total Number of RF Channels per Site = 34 (101 Servers and 1 DCCH)20Information Rate per Sector = 101 (Servers) * 14400 = 1.4544 Mbits/s21Information Rate per Site = 1.4544 Mbits/s22Spectrum Efficiency = 1.4544 Mbits/s / (15 MHz) = 0.09696 Mbits/s/MHz/site23

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    Attachment 111

    Answers to A1.2.20 for 136 and 136+23

    1364

    Class Bit Rate Delay BER/FER Examples

    A1.2.20.1 A 7.4 kb/s

    12.2 kb/s

    7.4 kb/s

    12.2 kb/s

    9.6 kb/s

    51.7 ms

    46.7 ms

    31.7 ms

    26.7 ms

    < 30 ms

    1% BER

    3% BER

    1% BER

    3% BER

    variable

    Voice - IS-641-A, interleave 2

    Voice - US1, interleave 2

    Voice - IS-641-A, interleave 1

    Voice - US, interleave 1

    IS-130 asynch data

    A1.2.20.2 B variable (max 9.6 kb/s) < 30 ms < 3% uncorrected BER IS-130+WAP

    136+ Packet (Mango)

    A1.2.20.3 C variable -

    half,full,double,triple rate

    (full rate = 9.6 kb/s max)

    variable error-free with ARQ

    (discounting the

    undetected error rate of

    the CRC)

    IS-130/135 asynch data/fax

    A1.2.20.4 D variable variable error-free with ARQ

    (discounting the

    undetected error rate of

    the CRC)

    136+ Packet (Mango),

    SMS (IS-136-A), WAP, GUTS

    5

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    1

    136+2

    Clas

    s

    Bit Rate Delay BER/FER Examples

    A1.2.20.

    1

    A 8 kb/s

    9.6 kb/s

    ~ 50 ms

    < 30 ms

    < 3% FER

    variable

    Voice - IS-641A

    IS130/135 asynch data/faxA1.2.20.

    2

    B variable (avg 9.6

    kb/s)

    < 30 ms < 3% uncorrected

    BER

    IS130/135+WAP

    IS136 Packet (Mango)

    A1.2.20.

    3

    C variable -

    half,full,double,triple

    rate

    (full rate = 9.6 kb/s

    typ.)

    variable error-free with

    ARQ

    IS130/135 asynch data/fax

    A1.2.20.

    4

    D variable variable error-free with

    ARQ

    IS136 Packet (Mango),

    SMS (IS136A), WAP,

    GUTS

    3

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    Attachment 121

    Layer 1 Description2

    Indoor Environment, 1.6 MHz carrier3

    4

    Glossary of abbreviations:56

    ARQ Automatic Repeat reQuest7

    BS Base station8

    DL Downlink (forward link)9

    TDMA Time Division Multiple Access10

    FDD Frequency Division Duplexing11

    FEC Forward Error Correction12

    FH Frequency Hopping13

    JD Joint Detection14

    LA Link Adaptation15

    LC Load Control16

    Mbps Mega bits per second17

    MS Mobile Station18

    NRT Non Real Time19

    PC Power Control20

    RT Real Time21

    TDD Time Division Duplexing22

    TH Time Hopping23

    TX transmission24

    UL Uplink (reverse link)25

    Physical channels26

    136 HS Indoor can operate in FDD mode and in TDD mode. The channel spacing of the27

    wideband mode is 1.6 MHz both in FDD and in TDD mode. The basic physical channel is a28

    certain time slot on a certain carrier frequency. In the following, an overview about the29

    multiframe, unit frame and time slot structure is given. The last subsection defines the30

    modulation method.31

    Multiframe32

    Multiframe structure is presented in Figure 1. The contents of the control channel cluster33

    indicated in the figure is dependent on the higher layer protocols, too.34

    35

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    0 1 2 3 24 25

    0 1 2 3 24 25 0 1 2 3 49 50

    multiframe with 26 frames multiframe with 51 frames

    superframe51 (26-frame) multiframes or 26 (51-frame) multiframes)

    hyperframe2048 superframes

    0 1 2 3 49 50

    0 1 2 3 2046 2047

    Frame (2k) Frame (2k+1)

    Frame 2kTS3:0-7

    Frame 2k+1

    TS3:0-7

    Control channels Control channels1

    Figure 1 The multiframe structure for 136 HS Indoor.2

    FDD and TDD frames3

    In the following sections, a unit frame structure is presented separately for FDD and TDD4

    modes.5

    FDD frame6

    The unit FDD frame is presented in Figure 2. The length of the FDD frame is 4.615 ms7

    which is 12000 symbol periods.8

    9

    72 s

    288 s

    4.615 ms

    TDMA Frame

    1/64 Slot

    1/16 Slot

    1.6 MHz

    10

    Figure 2 The unit FDD frame structure of 136 HS Indoor.11

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    TDD frame1

    The TDD frame is of the same length as the FDD frame but it is divided into downlink and2

    uplink parts (Figure 3). The switching point between uplink and downlink can be moved in3

    the TDD frame to adopt asymmetric traffic. The minimum length of uplink and downlink4

    parts is one eighth of the frame length (577 s).56

    72 s

    288 s

    4.615 ms

    TDMA Frame

    1/64 Slot

    1/16 Slot

    1.6 MHz

    Downlink Uplink

    Switching point between

    uplink and downlink

    7

    Figure 3 The unit TDD frame structure of 136 HS Indoor.8

    9

    In the TDD frame structure, it is assumed that the same mobile station is not receiving in the10

    last slot of the downlink part and transmitting in the first slot of the uplink part.11

    Time slots12

    The TDMA frame is subdivided into time slots. Two different types of time slots are13

    presented for 136 HS Indoorin Figure 2 and in Table 1 : 1/64 time slot and 1/16 time slot. In14

    a 1/64 time slot there are 187.5 symbol periods and in a 1/16 time slot 750 symbol periods.15136 HS Outdoor/Vehicular uses 1/8 time slot.16

    17

    Table 1 : Time slot lengths in seconds and in symbol periods.18

    Time slot type Length in seconds Length in symbol periods (SP)

    1/64 time slot 72 s 187.5 SP

    1/16 time slot 288 s 750 SP

    1/8 time slot 577 s 208.33 SP (136 HSOutdoor/Vehicular)

    19

    A 136 HS IndoorTDMA frame of length 4.615 ms can consist of20

    64 1/64 time slots o