CN109792771A - 一种随机接入前导序列的生成方法及用户设备 - Google Patents

一种随机接入前导序列的生成方法及用户设备 Download PDF

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Publication number
CN109792771A
CN109792771A CN201680089598.3A CN201680089598A CN109792771A CN 109792771 A CN109792771 A CN 109792771A CN 201680089598 A CN201680089598 A CN 201680089598A CN 109792771 A CN109792771 A CN 109792771A
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China
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notice signaling
cyclic shift
shift value
case
ncs
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CN201680089598.3A
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CN109792771B (zh
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赵越
柴丽
郭志恒
程型清
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/0055—ZCZ [zero correlation zone]
    • H04J13/0059—CAZAC [constant-amplitude and zero auto-correlation]
    • H04J13/0062—Zadoff-Chu
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/008—Transmission of channel access control information with additional processing of random access related information at receiving side
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/10—Code generation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/16—Code allocation
    • H04J13/22—Allocation of codes with a zero correlation zone
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/3405—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power
    • H04L27/3444—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power by applying a certain rotation to regular constellations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

一种随机接入前导序列的生成方法及用户设备，方法包括如下步骤：在UE接收到基站发送的第一通知信令的情况下，确定使用第一方案计算循环移位值；获取第一逻辑根序列号，并根据第一逻辑根序列号确定根序列；根据根序列和循环移位值，生成随机接入前导序列；第一方案为在UE的多普勒频移小于第一预定值且大于第二预定值的情况下计算循环移位值的方案，第一预定值小于2倍的物理随机接入信道PRACH子载波间隔；第二预定值大于1倍的PRACH子载波间隔；第一预定值大于第二预定值。采用本发明，能够在UE的多普勒频移大于1倍的PRACH的子载波间隔且小于2倍的PRACH的子载波间隔的情况下，消除UE之间的相互干扰，解决基站检测随机接入序列时出现检测模糊的问题。

Description

PCT国内申请，说明书已公开。

Claims (48)

  1. PCT国内申请，权利要求书已公开。
CN201680089598.3A 2016-09-29 2016-09-29 一种随机接入前导序列的生成方法及用户设备 Active CN109792771B (zh)

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US (2) US10932299B2 (zh)
EP (2) EP3509382B1 (zh)
JP (2) JP6882460B2 (zh)
KR (1) KR102268411B1 (zh)
CN (2) CN115720380B (zh)
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US10912126B2 (en) * 2017-03-03 2021-02-02 Lg Electronics Inc. Method and user equipment for transmitting random access preamble, and method and base station for receiving random access preamble
CN117336883A (zh) 2018-10-30 2024-01-02 交互数字专利控股公司 距离相关随机接入信道(rach)前导码选择
WO2021007714A1 (en) * 2019-07-12 2021-01-21 Nec Corporation Method, device and computer readable medium for prach sequence generation
CN112787785B (zh) * 2019-11-08 2022-08-26 华为技术有限公司 一种波束建立方法及装置

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Also Published As

Publication number Publication date
BR112019006157A2 (pt) 2019-08-20
EP4258608A2 (en) 2023-10-11
US11678377B2 (en) 2023-06-13
EP3509382A4 (en) 2019-10-02
US20210160932A1 (en) 2021-05-27
KR102268411B1 (ko) 2021-06-22
EP3509382A1 (en) 2019-07-10
WO2018058478A1 (zh) 2018-04-05
JP7257444B2 (ja) 2023-04-13
CN115720380A (zh) 2023-02-28
JP2021132386A (ja) 2021-09-09
US20190223226A1 (en) 2019-07-18
JP2020502843A (ja) 2020-01-23
EP4258608A3 (en) 2023-12-13
JP6882460B2 (ja) 2021-06-02
EP3509382B1 (en) 2023-06-07
US10932299B2 (en) 2021-02-23
CN109792771B (zh) 2024-04-09
KR20190054154A (ko) 2019-05-21
CN115720380B (zh) 2023-08-22

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