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YD/T 2741-2014 English PDF

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YD/T 2741-2014: Technical Specification for Uu-T Interface of LTE based Broadband Trunking Communication (B-Trunc) System (Phase 1)
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YD/T 2741-2014English989 Add to Cart 6 days [Need to translate] Technical Specification for Uu-T Interface of LTE based Broadband Trunking Communication (B-Trunc) System (Phase 1) Valid YD/T 2741-2014

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Basic data

Standard ID YD/T 2741-2014 (YD/T2741-2014)
Description (Translated English) Technical Specification for Uu-T Interface of LTE based Broadband Trunking Communication (B-Trunc) System (Phase 1)
Sector / Industry Telecommunication Industry Standard (Recommended)
Classification of Chinese Standard M36
Classification of International Standard 33.060
Word Count Estimation 47,469
Date of Issue 10/14/2014
Date of Implementation 10/14/2014
Regulation (derived from) People's Republic of China Ministry of Industry and Information Technology Notice 2014 No. 63
Issuing agency(ies) Ministry of Industry and Information Technology

YD/T 2741-2014: Technical Specification for Uu-T Interface of LTE based Broadband Trunking Communication (B-Trunc) System (Phase 1)


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Technical Specification for Uu-T Interface of LTE based Broadband Trunking Communication (B-Trunc) System (Phase 1) Communications industry standard of The People's Republic of China ICS M36 YD

Contents

Foreword ... 2 1 Scope ... 2 2 Normative References ... 2 3 Abbreviations ... 3 4 Physical Layer Part 1. General Description ... 4 5 Physical Layer Part2. Physical Channels and Modulation ... 5 6 Physical Layer Part3. Physical Layer Multiplexing and Channel Coding ... 5 6.1 Mapping of the transport channel to physical channel ... 5 6.2 Channel coding, multiplexing and interleaving ... 6 7 Physical Layer Part4. Physical layer procedures ... 6 7.1 UE procedure for receiving the physical downlink shared channel ... 6 7.2 CQI/PMI/RI Reporting ... 8 7.3 ACK/NACK Reporting ... 8 7.4 Physical uplink shared channel related procedures ... 8 7.5 Physical downlink control channel procedures ... 8 8 Physical layer, part 5��Physical Layer Measurement ... 10 9 Lay2, part 1.Medium Access Control (MAC) protocol ... 10 9.1 MAC Structure ... 10 9.2 Channel structure and channel mapping ... 11 9.3 Protocol Data Units ... 13 9.4 RNTI values and usage ... 14 9.5 DL-SCH data transfer ... 15 9.6 TPCH reception ... 16 9.7 PDCCH search space control for trunking group call ... 17 9.8 Trunking Buffer Status Report (Optional) ... 18 10 Lay2, part2. Radio Link Control (RLC) protocol ... 20 11 Lay2, part3. Packet Data Convergence Protocol (PDCP) ... 20 12 Layer 3 Part 1. RRC Protocol ... 21 12.1 Overview ... 21 12.2 System Information ... 22 12.3 RRC Process ... 22 12.4 Others ... 26 12.5 Protocol Data Unit, Format, and Parameter (Table and ASN.1) ... 28 12.6 Variable and Constant ... 48 13 Layer 3 Part 2. Trunking Services of UEs in Idle Mode ... 50 13.1 UEs In Idle Mode Receiving Data from the Trunking Control Channel and Traffic Channel ... 50 13.2 Trunking Paging DRX ... 51

Foreword

The present document is one of a series standards for the LTE based broadband trunking communication (B-TrunC) system and will consist of the following standards. a) YD/T ��������. Technical Specification for LTE based Broadband Trunking Communication (B-Trunc) System (Phase 1)�� b) YD/T ��������. Technical Specification for Uu-T Interface of LTE based Broadband Trunking Communication (B-Trunc) System (Phase 1) c) YD/T ��������. Technical Requirement for Interface between User Equipment (UE) and Evolved Packet Core (EPC) of LTE based Broadband Trunking Communication (B-Trunc) System (Phase 1) d) YD/T ��������. Technical Requirement for Interface between Evolved Packet Core (EPC) and Dispatch Controller (DC) of LTE based Broadband Trunking Communication (B-Trunc) System (Phase 1) e) YD/T ��������. Test Method for Uu-T Interface of LTE based Broadband Trunking Communication (B-Trunc) System (Phase 1) f) YD/T ��������. Test Method for Interface between User Equipment (UE) and Evolved Packet Core (EPC) of LTE based Broadband Trunking Communication (B-Trunc) System (Phase 1) g) YD/T ��������. Test Method for Interface between Evolved Packet Core (EPC) and Dispatch Controller (DC) of LTE based Broadband Trunking Communication (B-Trunc) System (Phase 1) This document has been produced by China Communications Standards Association (CCSA). The structure of the series standards are subject to the continuing work within CCSA TC5.

1 Scope

The present document specifies the Uu-T interface of LTE based broadband trunking communication (B-Trunc) system (Phase 1). The present document applies to UEs and eNodeBs of LTE based broadband trunking communication (B-Trunc) system (Phase 1).

2 Normative References

The following documents contain provosions which, through reference in this text, constitute provisions of the present document. References are either specific (identified by date of publications, edition number, version number, etc.) or non-specific. For a specific reference, subsequent revisions do not apply. For a non-specific reference, the latest version (including any amendments) applies. [1] 3GPP TS 36.201. ��Evolved Universal Terrestrial Radio Access (E-UTRA); Physical Layer �C General Description(Release 9)�� [2] 3GPP TS 36.211. ��Evolved Universal Terrestrial Radio Access (E-UTRA); Physical channels and modulation(Release 9)�� [3] 3GPP TS 36.212. ��Evolved Universal Terrestrial Radio Access (E-UTRA); Multiplexing and channel coding(Release 9)�� [4] 3GPP TS 36.213. ��Evolved Universal Terrestrial Radio Access (E-UTRA); Physical layer procedures(Release 9)�� [5] 3GPP TS 36.214. ��Evolved Universal Terrestrial Radio Access (E-UTRA); Physical layer �C Measurements(Release 9)�� [6] 3GPP TS36.321, ��Evolved Universal Terrestrial Radio Access (E-UTRA); Medium Access Control (MAC) protocol specification(Release 9)�� [7] 3GPP TS36.322, ��Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Link Control (RLC) protocol specification(Release 9)�� [8] 3GPP TS36.322, ��Evolved Universal Terrestrial Radio Access (E-UTRA); Packet Data Convergence Protocol (PDCP) Specification(Release 9)�� [9] 3GPP TS36.331, ��Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC) protocol specification(Release 9)�� [10] 3GPP TS 36.304, ��Evolved Universal Terrestrial Radio Access (E-UTRA); User Equipment (UE) procedures in idle mode(Release 9)��

3 Abbreviations

For the purpose of the present document, the following abbreviations apply. BSR Buffer Status Report CQI Channel Quality Indication CRC Cyclic Redundancy Check DL-SCH Downlink Shared Channel eNode B Evolved NodeB E-UTRAN Evolved UTRAN G-RNTI Group-Radio Network Temporary Identifier HARQ Hybrid Automatic Repeat Request LCID Logical Channel ID LTE Long Time Evolution MAC Medium Access Control NAS Non-Access Stratum PBCH Physical Broadcast Channel PCH Paging Channel PCFICH Physical Control Format Indicator Channel PDCCH Physical Downlink Control Channel PDCP Packet Data Convergence Protocol PDSCH Physical Downlink Shared Channel PHICH Physical Hybrid ARQ Indicator Channel PMCH Physical Multicast Channel PMI Precoding Matrix Indicator PRACH Physical Random Access Channel PUCCH Physical Uplink Control Channel PUSCH Physical Uplink Shared Channel RI Rank Indication RLC Radio Link Control RNTI Radio Network Temporary Identifier RRC Radio Resource Control TCCH Trunking Control Channel TDD Time Division Duplex TDRB Trunking Data Radio Bearer TGID Trunking Group Identification TPCCH Trunking Paging Control Channel TPCH Trunking Paging Channel TP-RNTI Trunking Paging-Radio Network Temporary Identifier TSRB Trunking Signalling Radio Bearer TTCH Trunking Traffic Channel 4 Physical Layer Part 1. General Description This Part follows 3GPP TS 36.201. The physical layer process for point-to-point services (e.g. individual calls) of broadband trunking communication (B-TrunC) system is specified in [1] and that for point-to-multipoint services (e.g. group calls) is defined in the present document. The definition of physical channels, modulation and channel coding scheme in [1] applies to the B-Trunc system. The following downlink physical channels of B-TrunC are defined. ����Physical Downlink Shared Channel, PDSCH ����Physical Downlink Control Channel, PDCCH ����Physical Broadcast Channel, PBCH ����Physical Control Format Indicator Channel, PCFICH ����Physical Hybrid ARQ Indicator Channel, PHICH The following uplink physical channels of B-Trunc are defined. ����Physical Random Access Channel, PRACH ����Physical Uplink Shared Channel, PUSCH ����Physical Uplink Control Channel, PUCCH The system shall support intra-system L1 measurement while inter-system L1 measurement is not considered. 5 Physical Layer Part2. Physical Channels and Modulation This part is specified in [2]. 6 Physical Layer Part3. Physical Layer Multiplexing and Channel Coding 6.1 Mapping of the transport channel to physical channel For uplink transmission, the mapping of uplink transport channels and uplink channel control information to their corresponding physical channels is specified in [3]. For downlink transmission, trunking paging channel (TPCH), a new downlink transport channel is defined to carry pagings related to the trunking calls including group calls and individual calls. TPCH maps to downlink shared channel (PDSCH) while the mapping of other downlink transport channels and downlink channel control information to their corresponding physical channels is specified in [3]. Table 1 specifies the mapping of the downlink transport channels to their corresponding physical channels. Table 1. Mapping of the downlink transport channel to physical channel Transport channel Physical channel Downlink shared Channel, DL-SCH Physical Downlink Shared Channel, PDSCH Broadcast Channel, BCH Physical Broadcast Channel, PBCH Paging Channel, TPCH Physical Downlink Shared Channel, PDSCH Trunking Paging Channel, TPCH Physical Downlink Shared Channel, PDSCH 6.2 Channel coding, multiplexing and interleaving Besides the requirements specified in [3], the following channel coding, multiplexing and interleaving shall also apply. ����The same coding scheme and coding rate for the PCH applies to the TPCH. ����The same transport channel processing for the PCH applies to the TPCH. ����Downlink control information (DCI) format 1A/1C is enhanced to support with CRC scrambled by the new defined TP-RNTI. ����Upon receiving the DCI format 1A/1C with CRC scrambled by TP-RNTI, a UE shall perform all the fields in the DCI format 1A/1C the same as P-RNTI. 7 Physical Layer Part4. Physical layer procedures 7.1 UE procedure for receiving the physical downlink shared channel If a UE is configured by higher layers to decode PDCCH with CRC scrambled by the TP-RNTI (Trunking Paging RNTI), the UE shall decode the PDCCH and the corresponding PDSCH according to any of the combinations defined in Table 2. The scrambling initialization of PDSCH corresponding to these PDCCHs is by TP-RNTI. Table2. PDCCH and PDSCH configured by TP-RNTI DCI format Search Space Transmission scheme of PDSCH DCI format 1A Common If the number of PBCH antenna ports is one, port 0 is used, otherwise transmit diversity. DCI format 1C Common If the number of PBCH antenna ports is one, port 0 is used, otherwise transmit diversity. If a UE is in RRC_IDLE state and configured by higher layers to decode PDCCH with CRC scrambled by the G-RNTI (Group RNTI), the UE shall decode the PDCCH and the corresponding PDSCH according to any of the combinations defined in Table 3. The scrambling initialization of PDSCH corresponding to these PDCCHs is by G-RNTI. Table 3. PDCCH and PDSCH configured by G-RNTI (UE in RRC_IDLE state) DCI format Search Space Transmission scheme of PDSCH DCI format 1A Common and group-specific by G-RNTI If the number of PBCH antenna ports is one, port 0 is used, otherwise transmit diversity. If a UE is in RRC_CONNECTED state and configured by higher layers to decode PDCCH with CRC scrambled by the G-RNTI, the UE shall decode the PDCCH and the corresponding PDSCH according to any of the combinations defined in Table 4. The scrambling initialization of PDSCH corresponding to these PDCCHs is by G-RNTI. Table 4. PDCCH and PDSCH configured by G-RNTI (UE in RRC_CONNECTED state) DCI format Search Space Transmission scheme of PDSCH DCI format 1A Blind decoding capability of G-RNTI PDCCH class1. Common and group-specific by G-RNTI; Blind decoding capability of G-RNTI PDCCH class2. common If the number of PBCH antenna ports is one, port 0 is used, otherwise transmit diversity. Note. Blind decoding capability of G-RNTI PDCCH class1and class 2 are defined in section 9.7.1. If a UE is in RRC_IDLE state and configured by higher layers to decode PDCCH with CRC scrambled by the SPS G-RNTI, the UE shall decode the PDCCH and the corresponding PDSCH according to any of the combinations defined in Table 5. The same PDSCH related configuration applies in the case that a PDSCH is transmitted without a corresponding PDCCH. The scrambling initialization of PDSCH corresponding to these PDCCHs and PDSCH without a corresponding PDCCH is by SPS G-RNTI. Table 5. PDCCH and PDSCH configured by SPS-RNTI (UE in RRC_IDLE state) DCI format Search space Transmission scheme of PDSCH DCI format 1A Common and group-specific by G-RNTI If the number of PBCH antenna ports is one, port 0 is used, otherwise transmit diversity. If a UE is in RRC_IDLE state and configured by higher layers to decode PDCCH with CRC scrambled by the SPS G-RNTI, the UE shall decode the PDCCH and the corresponding PDSCH according to any of the combinations defined in Table 6. The same PDSCH related configuration applies in the case that a PDSCH is transmitted without a corresponding PDCCH. The scrambling initialization of PDSCH corresponding to these PDCCHs and PDSCH without a corresponding PDCCH is by SPS G-RNTI. Table 6. PDCCH and PDSCH configured by SPS-RNTI (UE in RRC_CONNECTED state) DCI format Search Space Transmission scheme of PDSCH DCI format 1A Blind decoding capability of G-RNTI PDCCH class1. Common and group-specific by G-RNTI; Blind decoding capability of G-RNTI PDCCH class2. common If the number of PBCH antenna ports is one, port 0 is used, otherwise transmit diversity. Note. Blind decoding capability of G-RNTI PDCCH class1 and class 2 are defined in section 9.7.1. The same determination of modulation order and transport block size (TBS) for the PDSCH scrambled by P-RNTI applies to PDSCH scrambled by TP-RNTI. The same determination of modulation order and transport block size (TBS) for the PDSCH scrambled by C-RNTI applies to PDSCH scrambled by G-RNTI. 7.2 CQI/PMI/RI Reporting This part is specified in [4]. 7.3 ACK/NACK Reporting ACK/NACK is not provided for the PDSCH transmission scrambled by the G-RNTI 7.4 Physical uplink shared channel related procedures This part is specified in chapter 8 of [4]. 7.5 Physical downlink control channel procedures 7.5.1 PDCCH assignment procedures Besides the requirements specified in 3GPP TS 36.213 chapter 9, an additonal group-specific search space is defined. The CCEs corresponding to PDCCH candidate m of the group-specific search space The aggregation levels defining the search space are listed in Table 7. Table 7. PDCCH candidates of the group-specific space monitored by a UE The RNTI value used for RNTI n is set to G-RNTI assigned to the group. 7.5.2 PDCCH validation for semi-persistent scheduling of group call A UE shall validate a Semi-Persistent Scheduling assignment PDCCH of group call only if all the following conditions are met. - The CRC parity bits obtained for the PDCCH payload are scrambled with the Semi-Persistent Scheduling C-RNTI - The new data indicator field is set to ��0��. Validation is achieved if all the fields for the DCI format 1A are set according to Table 8 or Table 9. If validation is achieved, the UE shall consider the received DCI information accordingly as a valid semi-persistent activation or release. Table 8. Special fields for Semi-Persistent Scheduling Activation PDCCH Validation DCI format 1A HARQ process number Set to ��0000�� Modulation and coding scheme MSB is set to ��0�� Redundancy version Set to ��00�� Table 9. Special fields for Semi-Persistent Scheduling Release PDCCH Validation DCI format 1A HARQ process number Set to ��0000�� Modulation and coding scheme Set to ��11111�� Redundancy version Set to ��00�� Resource block assignment Set to all ��1��s 7.5.3 Physical uplink control channel procedures This part is specified in chapter 10 of [4]. 8 Physical layer, part 5��Physical Layer Measurement This section is based on YD/T 2560.5-2013 ��TD-LTE digital cellular mobile telecommunication network Uu Interface Technical Requirement �C Part 5. Physical Layer Measurement�� 9 Lay2, part 1.Medium Access Control (MAC) protocol 9.1 MAC Structure Figure 1 illustrates one possible structure for the UE side MAC entity, and it should not restrict implementation. Random Access Control TPCCH BCCH CCCH DCCH DTCH MAC-control TPCH BCH DL-SCH UL-SCH RACH (De-) Multiplexing Logical Channel prioritisation (UL only) HARQ Control TCCH TTCH De multiplexing PCCH PCH MCCH MTCH MCH De multiplexing Figure 1. MAC structure overview, UE side 9.2 Channel structure and channel mapping Table10 illustrates the logical channels related to trunking service. Some Trunking service special logical channels are added besides LTE logical channels. Table10.logical channels related to trunking service Logical channel functions CCCH Channel for transmitting control information between UEs and network. This channel is used for UEs having no RRC connection with the network. PCCH A downlink channel that transfers paging information of LTE service and system information change notifications. This channel can transfer group call and private call of trunking service. BCCH A downlink channel for broadcasting system control information. TCCH A point-to-multipoint downlink channel used for transmitting trunking control information from the network to the UE. TTCH A point-to-multipoint downlink channel for transmitting trunking traffic data from the network to the UE. DCCH A point-to-point bi-directional channel that transmits dedicated control information between a UE and the network. Used by UEs having an RRC connection. DTCH A Dedicated Traffic Channel (DTCH) is a point-to-point channel, dedicated to one UE, for the transfer of user information. A DTCH can exist in both uplink and downlink. TPCCH A point-to-multipoint downlink channel that transfers trunking paging information and trunking system information change notifications. 9.2.1 TCCH TCCH is a point-to-multipoint downlink channel used for transmitting trunking control information from the network to the Group UE. TCCH can be mapped to DL-SCH. 9.2.2 TTCH TCCH is a point-to-multipoint downlink channel for transmitting trunking traffic data from the network to the Group UE. TTCH can be mapped to DL-SCH. 9.2.3 TPCCH TPCCH is a point-to-multipoint downlink channel that transfers trunking paging information and trunking system information change notifications. TPCCH can be mapped to TPCH. 9.2.4 Mapping of Trunking related Downlink Channels BCCH CCCH DCCH DTCH TPCCH BCH DL-SCH PCH Downlink Logical channels Downlink Transport channels TTCH TCCH PDSCH Downlink Physical channels PBCH PCCH PHICH PCFICH PDCCH TPCH Figure 2. Downlink channel mapping 9.2.5 Uplink mapping The uplink logic channels��CCCH, DCCH and DTCH, have the same mapping relationship as LTE, The uplink logical channels can be mapped as described in Figure 3. CCCH DCCH DTCH RACH UL-SCH Uplink Logical channels Uplink Transport channels Uplink Physycial channels PRACH PUSCH Figure 3. Uplink channel mapping. 9.3 Protocol Data Units The design of MAC PDU for the new trunking related channels is same as the design of LTE. The corresponding LCID should be defined when the new logical channels are mutiplexed. The LCID for the DL-SCH of trunking group transmission identifies the logical channel instance of the corresponding MAC SDU or padding as described in Table 11. Table 11. Values of LCID for DL-SCH of trunking group transmission Index LCID values 01011 TCCH 01100-10101 Identity of the logical channel of TTCH 10110-11011 Reserved 11111 Padding The LCID for the UL-SCH of trunking group/private transmission identifies the logical channel instance of the corresponding MAC SDU or padding as described in Table 12. Table 12. Values of LCID for UL-SCH of trunking group/private transmission Index LCID values 00000 CCCH 00001-01010 Identity of the logical channel 01011 G-RNTI 01100-11001 Reserved 11010 Power Headroom Report 11011 C-RNTI 11100 Truncated BSR 11101 Short BSR 11110 Long BSR 11111 Padding 9.3.1 G-RNTI MAC Control Element The G-RNTI MAC Control Element is identified by MAC PDU subheader with LCID as specified in Table 12. It has a fixed size and consists of a single field defined as follows (Figure 4). G-RNTI Oct 1 G-RNTI Oct 2 Figure 4. G-RNTI MAC Control Element 9.4 RNTI values and usage RNTI values are presented in Table 13. Table 13. RNTI values Value (hexa-decimal) RNTI 0000 N/A 0001-003C RA-RNTI, C-RNTI, Semi-Persistent Scheduling C-RNTI, Temporary C-RNTI, TPC-PUCCH-RNTI ��TPC-PUSCH-RNTI��G-RNTI��Semi-Persistent Scheduling G-RNTI 003D-FFF3 C-RNTI, Semi-Persistent Scheduling C-RNTI, Temporary C-RNTI, TPC-PUCCH-RNTI ��TPC-PUSCH-RNTI��G-RNTI��Semi-Persistent Scheduling G-RNTI FFF4 TP-RNTI FFF5-FFFC Reserved for future use FFFD M-RNTI FFFE P-RNTI FFFF SI-RNTI NOTE. G-RNTI is used to scramble the DCI for the control channel and traffic channels of trunking group transmission. TP-RNTI is used to scramble the DCI for the trunking paging channel. RNTI usage and associated Transport Channels and Logical Channels are presented in Table14. Table14. RNTI usage RNTI Usage Transport Channel Logical Channel G-RNTI Dynamically scheduled trunking group transmission DL-SCH TTCH��TCCH Semi-Persistent Scheduling G-RNTI Semi-Persistently scheduled trunking group transmission DL-SCH TTCH��TCCH 9.5 DL-SCH data transfer 9.5.1 DL Assignment reception Downlink assignments transmitted on the PDCCH indicate if there is a transmission on the DL-SCH for a particular UE/group UE and provide the relevant HARQ information for the services, except for downlink trunking group service. When the UE has C-RNTI, SPS C-RNTI, or Temporary C-RNTI(the RNTI usage are described in subclause 7.1, YD/T 2561.1-2013), for each TTI during which it monitors PDCCH, the UE shall . ����if a downlink assignment for this TTI has been received on the PDCCH for the UE��s C-RNTI, or Temporary C-RNTI...

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