CN114342546A - 随机接入的方法和终端设备 - Google Patents
随机接入的方法和终端设备 Download PDFInfo
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Abstract
提供了一种确定随机接入的方法和设备，所述方法包括：终端设备根据参考信号的测量结果，在小区内的多个区域中，确定该终端设备所处的目标区域，所述多个区域分别对应于多个TA；终端设备根据所述目标区域对应的TA，向网络设备发送4步随机接入过程中的Msg 1或者2步随机接入过程中的Msg A。由于将小区划分为多个区域，相比于整个小区内的最大时延差，每个区域内的最大时延差明显减小，网络设备接收前导码的接收窗口的长度就可以减小，从而避免接收窗口较大所导致的不同RO对应的接收窗口重叠的问题。并且，不同区域分别对应不同的TA，不同区域的终端设备使用不同的TA发送前导码。这样就在不增加接收窗口长度的情况下，实现了NTN系统中有效的随机接入。
Description
PCT国内申请，说明书已公开。
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- PCT国内申请，权利要求书已公开。
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| PCT/CN2019/129259 WO2021128291A1 (zh) | 2019-12-27 | 2019-12-27 | 随机接入的方法和终端设备 |
Publications (2)
| Publication Number | Publication Date |
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| CN114342546A true CN114342546A (zh) | 2022-04-12 |
| CN114342546B CN114342546B (zh) | 2024-05-28 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102711273A (zh) * | 2012-04-19 | 2012-10-03 | 北京创毅讯联科技股份有限公司 | 无线网络中的随机接入方法和用户设备 |
| CN109428657A (zh) * | 2017-08-29 | 2019-03-05 | 中国移动通信集团吉林有限公司 | 一种定位方法及装置 |
| CN109495961A (zh) * | 2017-09-11 | 2019-03-19 | 电信科学技术研究院 | 一种时间提前量指示方法、基站、终端及装置 |
| WO2019231305A1 (en) * | 2018-06-01 | 2019-12-05 | Samsung Electronics Co., Ltd. | Method and system for handling random access procedure in non-terrestrial communication system |
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102711273A (zh) * | 2012-04-19 | 2012-10-03 | 北京创毅讯联科技股份有限公司 | 无线网络中的随机接入方法和用户设备 |
| CN109428657A (zh) * | 2017-08-29 | 2019-03-05 | 中国移动通信集团吉林有限公司 | 一种定位方法及装置 |
| CN109495961A (zh) * | 2017-09-11 | 2019-03-19 | 电信科学技术研究院 | 一种时间提前量指示方法、基站、终端及装置 |
| WO2019231305A1 (en) * | 2018-06-01 | 2019-12-05 | Samsung Electronics Co., Ltd. | Method and system for handling random access procedure in non-terrestrial communication system |
Non-Patent Citations (8)
| Title |
|---|
| ""38821-110"", 3GPP TSG_RAN\\TSG_RAN, 11 December 2019 (2019-12-11) * |
| ""R1-1910481_Initial and Random_Access_for_NTN_v2"", 3GPP TSG_RAN\\WG1_RL1, 4 October 2019 (2019-10-04), pages 2 * |
| ETRI: "R1-1912640 "Discussion on timing advance for NTN"", 3GPP TSG_RAN\\WG1_RL1, no. 1, 8 November 2019 (2019-11-08) * |
| FRAUNHOFER IIS, FRAUNHOFER HHI: "R3-190178 "NR-NTN: Tracking Area Management"", 3GPP TSG_RAN\\WG3_IU, no. 3, 15 February 2019 (2019-02-15) * |
| HUAWEI, HISILICON: "R2-1913785 "Random access with UE location information"", 3GPP TSG_RAN\\WG2_RL2, no. 2, 4 October 2019 (2019-10-04) * |
| NOMOR RESEARCH GMBH, THALES: "R2-1818510 "Initial Random Access Procedure in Non-Terrestrial Networks (NTN)"", 3GPP TSG_RAN\\WG2_RL2, no. 2, 2 November 2018 (2018-11-02) * |
| SAMSUNG: "Uplink timing advance/RACH procedure and Initial Access for NTN", 《3GPP TSG RAN WG1 MEETING #99，R1-1912470》, 22 November 2019 (2019-11-22), pages 2 * |
| ZTE CORPORATION, SANECHIPS: "Consideration on Random Access for NTN", 《3GPP TSG RAN WG2 MEETING #105BIS，R2-1903391》, 12 April 2019 (2019-04-12), pages 2 * |
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