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1. CN110463256 - DATA TRANSMISSION METHOD, ACCESS NETWORK DEVICE, TERMINAL AND COMMUNICATIONS SYSTEM

Office
Chine
Numéro de la demande 201880020910.2
Date de la demande 24.03.2018
Numéro de publication 110463256
Date de publication 15.11.2019
Type de publication A
CIB
H04W 28/02
HÉLECTRICITÉ
04TECHNIQUE DE LA COMMUNICATION ÉLECTRIQUE
WRÉSEAUX DE TÉLÉCOMMUNICATIONS SANS FIL
28Administration du trafic de réseau ou des ressources
02Gestion du trafic, p.ex. régulation de flux ou d'encombrement
H04W 36/00
HÉLECTRICITÉ
04TECHNIQUE DE LA COMMUNICATION ÉLECTRIQUE
WRÉSEAUX DE TÉLÉCOMMUNICATIONS SANS FIL
36Dispositions pour le transfert ou la resélection
CPC
H04W 28/04
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
28Network traffic or resource management
02Traffic management, e.g. flow control or congestion control
04Error control
H04W 28/065
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
28Network traffic or resource management
02Traffic management, e.g. flow control or congestion control
06Optimizing ; the usage of the radio link; , e.g. header compression, information sizing ; , discarding information
065using assembly or disassembly of packets
H04W 36/0016
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
36Hand-off or reselection arrangements
0005Control or signalling for completing the hand-off
0011for data session or connection
0016for hand-off preparation
H04W 36/26
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
36Hand-off or reselection arrangements
24Reselection being triggered by specific parameters ; used to improve the performance of a single terminal
26by agreed or negotiated communication parameters
H04W 76/11
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
76Connection management
10Connection setup
11Allocation or use of connection identifiers
H04W 76/12
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
76Connection management
10Connection setup
12Setup of transport tunnels
Déposants HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventeurs HAN LIFENG
韩立锋
HUANG QUFANG
黄曲芳
DAI MINGZENG
戴明增
Données relatives à la priorité 201710183306.9 24.03.2017 CN
Titre
(EN) DATA TRANSMISSION METHOD, ACCESS NETWORK DEVICE, TERMINAL AND COMMUNICATIONS SYSTEM
(ZH) 数据传输方法、接入网设备、终端及通信系统
Abrégé
(EN)
Provided in the present invention is a data transmission method: a first access network device establishing a first data radio bearer (DRB) and a second DRB; the first access network device receivinga forwarding data packet from a second access network device; the first access network device mapping a data packet in the forwarding data packet which does not contain a flow identifier to the firstDRB, the first DRB corresponding to a DRB of the second access network device; the first access network device mapping, according to a second mapping relationship, a data packet in the forwarding datapacket which contains a flow identifier to the second DRB, the second mapping relationship being a mapping relationship between flow and a DRB in the first access network device, thus preventing theproblem of data packet loss or duplication which is caused by each access network device individually configuring a mapping relationship between flow and a DRB during switching or double connection and the like, and enhancing the continuity of terminal service and improving communications quality.

(ZH)
本申请提供了一种数据传输方法,第一接入网设备建立第一DRB(数据无线承载)和第二DRB;所述第一接入网设备从第二接入网设备接收转发数据包;所述第一接入网设备将所述转发数据包中不包含流标识的数据包映射到所述第一DRB,所述第一DRB对应于第二接入网设备的DRB;所述第一接入网设备根据第二映射关系,将所述转发数据包中包含流标识的数据包映射到所述第二DRB,所述第二映射关系为所述第一接入网设备中的流与DRB的映射关系,从而,避免在切换或者双连接等场景中,由于每个接入网设备独立配置流与DRB的映射关系而导致的数据丢包或者重复发包的问题,提升终端业务的连续性,提高通信质量。