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Patent Searching and Data


Title:
COMMUNICATION METHOD AND COMMUNICATION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2021/056563
Kind Code:
A1
Abstract:
The present application provides a communication method and a communication apparatus that can ensure the operation of a connection recovery mechanism of a terminal device, and reduce the impact of the mobility of access network devices on the connection recovery process of the terminal device. The communication method comprises: a first access network device sending a first message to a terminal device, the first message being used to instruct the terminal device to enter an inactive state; the first access network device sending a second message to a core network device, the second message carrying context information and a first security verification parameter of the terminal device, and the first security verification parameter being used to perform security verification on the terminal device; the first access network device receiving a third message from a second access network device, the third message being used to request the context information of the terminal device; and the first access network device sending a fourth message to the second access network device, the fourth message being used to indicate that the first access network device refrains from providing the context information to the second access network device.

Inventors:
GENG TINGTING (CN)
WU YEDAN (CN)
YAN LE (CN)
Application Number:
PCT/CN2019/109183
Publication Date:
April 01, 2021
Filing Date:
September 29, 2019
Export Citation:
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Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04W76/19; H04W40/34
Domestic Patent References:
WO2018081956A12018-05-11
WO2018081956A12018-05-11
WO2018206629A12018-11-15
Foreign References:
CN110225600A2019-09-10
CN109803258A2019-05-24
CN110149630A2019-08-20
CN109936861A2019-06-25
US20190174365A12019-06-06
Other References:
ZTE, SANECHIPS: "Discussion on Tracking Area Management in NTN", 3GPP DRAFT; R3-185610 DISCUSSION ON TRACKING AREA MANAGEMENT IN NTN, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG3, no. Chengdu, China; 20181008 - 20181012, 29 September 2018 (2018-09-29), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051528885
See also references of EP 4025007A4
Attorney, Agent or Firm:
LONGSUN LEAD IP LTD. (CN)
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