Title:
DATA TRANSMISSION METHOD, ACCESS NETWORK DEVICE, TERMINAL AND COMMUNICATIONS SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/171791
Kind Code:
A1
Abstract:
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 receiving a 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 first DRB, 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 data packet 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 the problem 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.
Inventors:
HAN LIFENG (CN)
HUANG QUFANG (CN)
DAI MINGZENG (CN)
HUANG QUFANG (CN)
DAI MINGZENG (CN)
Application Number:
PCT/CN2018/080396
Publication Date:
September 27, 2018
Filing Date:
March 24, 2018
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04W28/02; H04W36/00
Foreign References:
| CN103945470A | 2014-07-23 | |||
| US20090129342A1 | 2009-05-21 | |||
| CN201710183306A | 2017-03-24 |
Other References:
ZTE: "Further discussion on the new UP protocol layer for QoS", 3GPP TSG-RAN WG2 MEETING #97 R2-1701119, 17 February 2017 (2017-02-17), XP051211831
ITRI: "Discussion on QoS flow ID", 3GPP TSG-RAN WG2 NR AD HOC, R2-1700255, 19 January 2017 (2017-01-19), XP051210837
NOKIA: "QoS flow relocation", 3GPP TSG-RAN WG2 MEETING #97, R2-1700814, 17 February 2017 (2017-02-17), XP051211599
See also references of EP 3606149A4
ITRI: "Discussion on QoS flow ID", 3GPP TSG-RAN WG2 NR AD HOC, R2-1700255, 19 January 2017 (2017-01-19), XP051210837
NOKIA: "QoS flow relocation", 3GPP TSG-RAN WG2 MEETING #97, R2-1700814, 17 February 2017 (2017-02-17), XP051211599
See also references of EP 3606149A4
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