Standard No.:	GB/T 44863-2024
English Name:	Technical requirements and test methods for in-band and co-band positioning based on mobile communication network
Chinese Name:	基于移动通信网的带内与共频带定位技术要求及测试方法
Chinese Classification:	M36    Radio communication equipment
Professional Classification:	GB    National Standard
Issued by:	SAMR; SAC
Issued on:	2024-10-26
Implemented on:	2025-2-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	21500 words
Price(USD):	645.0
Delivery:	via email in 1~5 business day

GB/T 44863-2024 Technical requirements and test methods for in-band and co-band positioning based on mobile communication network 1 Scope This document specifies the system architecture and functional requirements of each part, positioning signal structure, positioning process and other technical requirements of the in-band and co-band positioning system, and describes the test methods. This document is applicable to co-band positioning and in-band positioning in downlink positioning in the terrestral beacon system (TBS) of LTE and 5G mobile communication network. 2 Normative references The following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 39414.2-2020 Interface specification for signal in space of BeiDou navigation satellite system - Part 2: Open service signal B2a YD/T 3936-2021 Overall technical requirements for high precision positioning based on mobile communication network 3GPP TS 36.211 vl6.6.0 Evolved Universal Terrestrial Radio Access (E-UTRA); Physical channels and modulation 3GPP TS 36.305 v16.3.0 Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Stage 2 functional specification of User Equipment (UE) positioning in E-UTRAN 3GPP TS 37.571-2 v16.8.0 Universal Terrestrial Radio Access (UTRA) and Evolved UTRA (E-UTRA) and Evolved Packet Core (EPC); User Equipment (UE) conformance specification for UE positioning; Part 2: Protocol conformance 3GPP TS 38.211 vl6.6.0 NR; Physical channels and modulation 3GPP TS 38.305 v16.5.0 NG Radio Access Network (NG-RAN); Stage 2 functional specification of User Equipment (UE) positioning in NG-RAN 3GPP TS 38.455 v16.6.0 NG-RAN;NR Positioning Protocol A (NRPPa) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 co-band positioning technology positioning technology of broadcasting the positioning signal on the frequency band where the communication signal is working at a low power that does not affect the normal operation of the communication signal 3.2 in-band positioning technology positioning technology uses the communication subcarrier to broadcast the positioning reference signal under the frame structure of communication network 4 Abbreviations For the purposes of this document, the following abbreviations apply. A/D: Angalog to Digital BDT: Beidou time C/A: Coarse Acquisition CRC: Cyclic Redundancy Check D/A: Digital to Angalog GPS: Global Positioning System ID: Identity document LDPC: Low Density Parity Check Code LSB: Least Significant Bit LTE: Long Term Evolution MSB: Most Significant Bit NR: New Radio SMA: SubMiniature Version A TBMF: Territorial Beacon Management Function TBS: Territorial Beacon System TDL: Tapped Delay Line TDOA: Time Difference Of Arrival UTC: Coordinated Universal Time

Contents Foreword Introduction 1 Scope 2 Normative references 3 Terms and definitions 4 Abbreviations 5 In-band and co-band positioning technology system architecture 5.1 Overall logical structure 5.2 Overall network architecture 5.3 Structure of signal sending entity 5.4 Structure of positioning terminal 6 Functions of equipment 6.1 Functions of signal sending entity 6.2 Functions of terminal 7 Equipment performance 7.1 Performance of signal sending entity 7.2 Performance of positioning terminal 8 Positioning signaling process 8.1 In-band positioning signaling process 8.2 Co-band positioning signaling process 9 Test Method 9.1 Test environment 9.2 Test methods of signal sending entity 9.3 Test methods of positioning terminal 9.4 Signaling consistency test Annex A (Informative) Introduction of co-band positioning technology A.1 Introduction of co-band positioning technology A.2 Comparison between co-band positioning signals and GPS signals Annex B (Normative) In-band and co-band positioning signals B.1 Requirements for in-band positioning signals B.2 Requirements for co-band positioning signals Bibliography