CN110999441A - 数据传输的方法及相关设备 - Google Patents

数据传输的方法及相关设备 Download PDF

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Publication number
CN110999441A
CN110999441A CN201780093833.9A CN201780093833A CN110999441A CN 110999441 A CN110999441 A CN 110999441A CN 201780093833 A CN201780093833 A CN 201780093833A CN 110999441 A CN110999441 A CN 110999441A
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China
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data packet
pdcp data
terminal device
pdcp
network device
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CN201780093833.9A
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CN110999441B (zh
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姚楚婷
徐海博
王键
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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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/03—Reselecting a link using a direct mode connection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/34—Flow control; Congestion control ensuring sequence integrity, e.g. using sequence numbers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1835—Buffer management
    • H04L1/1841—Resequencing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/55—Prevention, detection or correction of errors
    • H04L49/552—Prevention, detection or correction of errors by ensuring the integrity of packets received through redundant connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0205—Traffic management, e.g. flow control or congestion control at the air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/03—Reselecting a link using a direct mode connection
    • H04W36/033—Reselecting a link using a direct mode connection in pre-organised networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/23—Manipulation of direct-mode connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L2001/0092—Error control systems characterised by the topology of the transmission link
    • H04L2001/0097—Relays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02—Data link layer protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/04—Terminal devices adapted for relaying to or from another terminal or user

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

Abstract

本申请公开了数据传输的方法和相关装置，其中，所述方法包括：第一终端设备从第二终端设备切换至网络设备；第一终端设备接收网络设备发送的第一分组数据汇聚协议PDCP数据包；若第一PDCP数据包为目标PDCP数据包，则第一终端设备递交第二PDCP数据包；其中，目标PDCP数据包为所述网络设备根据传输状态报告发送的PDCP数据包，传输状态报告为第一终端设备或第二终端设备向网络设备发送的状态报告，用于反馈在第一终端设备切换至网络设备之前网络设备通过第二终端设备向第一终端设备发送的数据的接收情况，第二PDCP数据包为以第一PDCP数据包的计数值为起始且计数值与第一PDCP数据包的计数值连续的PDCP数据包。采用本申请的方案，可以避免在路径切换后出现丢包问题。

Description

PCT国内申请，说明书已公开。

Claims (25)

  1. PCT国内申请，权利要求书已公开。
CN201780093833.9A 2017-08-11 2017-08-11 数据传输的方法及相关设备 Active CN110999441B (zh)

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CN110999441B CN110999441B (zh) 2022-09-23

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EP (1) EP3644665A4 (zh)
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WO2019028893A1 (zh) * 2017-08-11 2019-02-14 华为技术有限公司 数据传输的方法及相关设备
US11025549B2 (en) * 2018-01-30 2021-06-01 Marvell Israel (M.I.S.L) Ltd. Systems and methods for stateful packet processing
EP3811541A1 (en) * 2018-06-21 2021-04-28 Telefonaktiebolaget Lm Ericsson (Publ) Preventing/mitigating packet loss in integrated access backhaul (iab) networks
CN110839267B (zh) * 2018-08-17 2022-01-28 维沃移动通信有限公司 服务节点更新方法、终端设备和网络侧设备
CN112655245A (zh) * 2018-09-19 2021-04-13 Oppo广东移动通信有限公司 一种数据传输方法、设备及存储介质
CN112203362A (zh) 2019-07-08 2021-01-08 联发科技（新加坡）私人有限公司 减少移动中断的方法和用户设备
WO2021155584A1 (zh) * 2020-02-07 2021-08-12 Oppo广东移动通信有限公司 通信方式切换方法、装置及其设备
CN115243337B (zh) * 2021-04-23 2024-09-24 华为技术有限公司 数据传输方法及装置

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US11147002B2 (en) 2021-10-12
EP3644665A4 (en) 2020-07-01
EP3644665A1 (en) 2020-04-29
CN110999441B (zh) 2022-09-23
US20220070748A1 (en) 2022-03-03
WO2019028893A1 (zh) 2019-02-14
US20210099930A1 (en) 2021-04-01
US12089102B2 (en) 2024-09-10

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