1、 ANSI/TIA-136-331-2000 APPROVED: MARCH 31, 2000 REAFFIRMED: OCTOBER 20, 2004 REAFFIRMED: AUGUST 14, 2013 WITHDRAWN: JUNE 12, 2015 TIA-136-331 March 2000TDMA Third Generation Wireless- Packet Data Service- 136+ Physical Layer NOTICE TIA Engineering Standards and Publications are designed to serve the
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20、physical layer used by the 136+bearer of GPRS-136.TIA-136-331 was developed by TR-45.3.5, the Physical Layer Groupof TR-45.3, the TIA TDMA Wireless Standards Subcommittee.TIA welcomes suggestions for improvement of this standard. Pleasesend suggestions to the following address:Telecommunications Ind
21、ustry Association2500 Wilson Boulevard Suite 300Arlington VA 22201-3836THIS PAGE INTENTIONALLY LEFT BLANKTIA/EIA-136-331iContents1. Introduction . 12. Service Access Points. 23. Packet-Data Channel Structure . 33.1 PDCH Slot Structures . 33.2 AG. 43.3 CDFT 43.4 CSFP/CDFT 53.5 DATA . 63.6 G . 73.7 Pa
22、cket Channel Feedback (PCF). 73.8 Pilot Symbols Fields (Pn) . 73.9 PRAMP. 83.9.1 /4 DQPSK 83.9.2 8-PSK . 83.10 PREAM. 83.11 R 93.12 Slot Header . 93.13 SYNC 93.13.1 Synchronization Word for 8-PSK Uplink Channel. 93.14 Multi-Slot Operation. 104. Superframe. 115. Hyperframe 126. Paging Frame . 137. PP
23、CH Displacement 148. PCCH Selection and PPCH Allocation 159. Subchanneling on the Uplink PDCH 1610. Radio Frequency Carrier Spacing and Designation. 1811. Power Output and Modulation 1912. Uplink Power Control . 2012.1 Transmit Power. 2012.2 Signal Strength Measurement . 2013. Quasi-Discontinuous Tr
24、ansmission 2214. References 23TIA/EIA-136-331iiFiguresFigure 1 TDMA Frame Format . 3Figure 2 Downlink PDCH Slot Structure for /4 DQPSK. 3Figure 3 Downlink PDCH Slot Structure for 8-PSK . 3Figure 4 Full-Length Uplink PDCH Slot Structure for /4 DQPSK 3Figure 5 Full-Length Uplink PDCH Slot Structure fo
25、r 8-PSK 4Figure 6 Abbreviated Uplink PDCH Slot Structure for /4 DQPSK. 4Figure 7 Abbreviated Uplink PDCH Slot Structure for 8-PSK . 4Figure 8 CSFP/CDFT Bit Allocation 5Figure 9 PCF Sub Fields 7Figure 10 Superframe Structure. 11Figure 11 Hyperframe Structure 12Figure 12 Paging Frame Class 1 Wake-up S
26、chedule. 13Figure 13 PPCH Displacement 14Figure 14 Downlink PDCH and uplink PDCH Slot Associations . 17TIA/EIA-136-331iiiTablesTable 1 DFT Values. 4Table 2 Mapping DFT Values into CDFT Codewords 5Table 3 Coded Data Bits/20ms (Full-Rate User) . 7Table 4 Sync Word Usage . 9Table 5 Sync Words. 9Table 6
27、 Superframe Slot Allocations . 11TIA/EIA-136-33111. Introduction1This standard specifies the physical layer for the 136+ bearer of the GPRS-136 Packet2Data Service. It specifies the slot structures and frame structures that are used. It specifies3sub channeling on the uplink PDCH. This standard cont
28、ains the specification of the4paging displacement procedure for the PCCH of GPRS-136. It also specifies power5output, power control, and modulation to be used for the 136+ bearer.6This physical layer is very similar to the physical layer for the DTC (see7TIA/EIA-136-131 3). The frame structures and
29、paging displacement procedure is very8similar to the ones used on DCCH (see TIA/EIA-136-121 2).9To accomplish some tasks (e.g., tune to the correct carrier or use the correct power10output), the physical layer must communicate with the Radio Resource Management11Entity (RRME, see TIA/EIA-136-335 6).
30、 This communication is not specified using12formal Service Access Points (SAPs) and service primitives. Instead it is an13implementation-specific function and is shown as a connection without a SAP in the14protocol reference diagrams in the GPRS-136 overview (see TIA/EIA-136-330 4).15TIA/EIA-136-331
31、22. Service Access Points1The Physical Layer (i.e., Layer 1) associated with a 30-kHz Packet-Data Channel (PDCH)2provides service access points at both the MS and BS side (see TIA/EIA-136-330). The3set of SAPs supported by the Physical Layer is as follows:4 MAC SAPn (associated with RPDCH subchannel
32、 n see Section 9)5The service primitives associated with the MS physical-layer SAPs are as follows:6 PHY_DATA.IND (L1 SDU, PCF, DFT/SFP)7 PHY_DATA.REQ (L1 SDU, DFT)8The service primitives associated with the BS physical-layer SAPs are as follows:9 PHY_DATA.IND (L1 SDU, DFT)10 PHY_DATA.REQ (L1 SDU, P
33、CF, DFT)11TIA/EIA-136-33133. Packet-Data Channel Structure1Figure 1 depicts the TDMA frame structure applicable to a PDCH (see2TIA/EIA-136-330), which may be either a Packet Control Channel (PCCH) or a Packet3Traffic Channel (PTCH).4Figure 1 TDMA Frame Format5One Frame = (972 Symbols) = 40 ms. (25 f
34、rames per second)Slot 1 Slot 2 Slot 3 Slot 4 Slot 5 Slot 6One Slot3.1 PDCH Slot Structures6Figures 2 to 7 indicate the fields that constitute uplink and downlink slots. Shaded fields7represent the Header and shall be modulated using /4 DQPSK. The remaining portion8of each slot (i.e., the fields that
35、 are not shaded) may be modulated using /4 DQPSK or98-PSK (see Section 3.5). Note that where a slot contains multiple DATA fields, each10DATA field is modulated using 8-PSK. The number associated with each field indicates11its length in symbols. When /4 DQPSK is used, there are two bits per symbol.
36、When128-PSK is used there are 3 bits per symbol. Many of the fields are identical to fields used13on DCCH (TIA/EIA-136-131).14Figure 2 Downlink PDCH Slot Structure for /4 DQPSK1514 6 12 128 2SYNC CSFP/CDFT PCF DATA PRAMPFigure 3 Downlink PDCH Slot Structure for 8-PSK1614 6 12 17 3 33 3 33 3 33 3 2SY
37、NC CSFP/CDFT PCF DATA P1DATA P2DATA P3DATA P4PRAMPFigure 4 Full-Length Uplink PDCH Slot Structure for /4 DQPSK173 3 8 14 3 131G R PREAM SYNC CDFT DATATIA/EIA-136-3314Figure 5 Full-Length Uplink PDCH Slot Structure for 8-PSK133 8 14 3 263313313313G R PREAM SYNC CDFT DATA P1DATA P2DATA P3DATA P4Figure
38、 6 Abbreviated Uplink PDCH Slot Structure for /4 DQPSK23 3 8 14 3 109 22G R PREAM SYNC CDFT DATA AGFigure 7 Abbreviated Uplink PDCH Slot Structure for 8-PSK333 8 14 3 263313313 9 32G R PREAM SYNC CDFT DATA P1DATA P2DATA P3DATA P4AG43.2 AG5The AG (Abbreviated Guard) field denotes guard time for the a
39、bbreviated access burst6slot structure. The field shall be 22 symbols. During this time the mobile station shall7maintain carrier off condition. Note that the first 3 symbols of the AG field is a ramp time8where the MS shall ramp down its power to carrier off condition.93.3 CDFT10CDFT shall be a 3-s
40、ymbol field sent on the uplink and is used to convey a 3-bit Data11Frame Type (DFT) defined in Table 1. At the MS, the Physical Layer shall receive a12DFT value from the MAC and map it into a CDFT codeword according to Table 2. At13the BS, the Physical Layer shall decode CDFT to determine the DFT va
41、lue to be passed14up to the MAC.15Table 1 DFT Values16DFT Value Function000 /4 DQPSK modulation, Fixed Coding Mode, AMI = 0001 /4 DQPSK modulation, Fixed Coding Mode, AMI 0010 /4 DQPSK modulation, Incremental Redundancy Mode, AMI 0011 8-PSK modulation, Fixed Coding Mode, AMI 0100 8-PSK modulation, I
42、ncremental Redundancy Mode, AMI 0All other DFT values are reserved.TIA/EIA-136-3315Table 2 Mapping DFT Values into CDFT Codewords1DFT Values CDFT Codewords000 0 0 0 0 0 0001 0 0 1 1 0 1010 0 1 1 0 1 0011 0 1 0 1 1 1100 1 1 0 1 0 0101 1 1 1 0 0 1110 1 0 1 1 1 0111 1 0 0 0 1 13.4 CSFP/CDFT2Coded Super
43、frame Phase/Coded Data-Field Type (CSFP/CDFT) is sent on the downlink3and is used to convey a 5-bit Superframe Phase (SFP) value and a 3 bit Data Frame Type4(DFT) value defined as (D2, D1, D0). The values defined for DFT are the same as those5defined for the CDFT field (see Section 3.3). SFP values
44、are as currently defined for the6DCCH (see TIA/EIA-136-121). DFT values are carried within the bit positions referred7to as d7, d6and d5of the CSFP defined for the DCCH. DFT along with SFP are coded8using the same (12, 8) as defined for the CSFP of the DCCH (see TIA/EIA-136-121). The9bit allocation
45、for CSFP/CDFT is shown in Figure 8 where S denotes Superframe Phase10bits and P denotes inverted Parity bits. At the BS, the Physical Layer receives DFT from11the MAC and is responsible for coding a paired SFP and DFT value to form a12CSFP/CDFT field. At the MS, the Physical Layer is responsible for
46、 decoding the13CSFP/CDFT field to obtain an SFP and a DFT value and passing them both to the MAC.14Figure 8 CSFP/CDFT Bit Allocation15D2D1D0S4S3S2S1S0P3P2P1P0TIA/EIA-136-3316The following text in this section (section 3.4) is included for information only and it1describes the coding of CSFP/CDFT. Th
47、e specification of the coding is as described2above.3SFP/DFT is an 8-bit word, which is coded using a (15,11) Hamming code shortened to a4(12,8) code to form a 12-bit CDFT/CSFP. The following coding procedure defines the5relationship between the 8-bit SFP/DFT and the 12-bit CSFP/CDFT, and does not i
48、mply6an implementation. Bit D2is the most significant bit of CSFP/CDFT and is received7earliest in time in the mobile station.8SFP/DFT (8-bits) = (D2, D1, D0, S4, S3, S2, S1, S0)91. Form SFP/DFT Information Word polynomial a(X):10D2X7+ D1X6+ D0X5+ S4X4+ S3X3+ S2X2+ S1X1+ S0X0112. Multiply a(X) by X4
49、123. Obtain the remainder b(X) from dividing X4a(X) by X4+ X + 1.13Where aXXXX()441+= q(X) + bXXX()41+144. CSFP/CDFT (12-bits) is defined as (D2, D1, D0, S4, S3, S2, S1, S0, P3, P2, P1, P0)15where (P3, P2, P1, P0) is defined as the bits from b(X), (b3, b2, b1, b0) with each bit16inverted.173.5 DATA18User data bits are received through one of the SAPs and placed in the Data field or taken19from the Data field and sent through one of the SAPs. For the case where a single PDCH20slot contains multiple DATA fields they are conside
