公开(公告)号：US20200037376A1

公开(公告)日：2020-01-30

申请号：US16483643

申请日：2018-02-02

Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

Inventor： Yunjing HOU ,  Juan ZHANG ,  Hucheng WANG

IPC: H04W76/11

Abstract: The present disclosure provides a routing method and a routing device. The routing method includes: receiving, by an AMF, a first message from an (R)AN, the first message including session-related information and routing information associated with the session-related information; and routing, by the AMF, the session-related information to a relevant SMF in accordance with the routing information. According to the present disclosure, it is able to correctly route the session-related information between the (R)AN and the SMF.

公开(公告)号：US20190082364A1

公开(公告)日：2019-03-14

申请号：US16084532

申请日：2017-03-16

Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

Inventor： Juan ZHANG

IPC: H04W36/00 ,  H04W76/11 ,  H04W48/18 ,  H04W76/16 ,  H04W76/27 ,  H04W36/18 ,  H04W48/10

Abstract: A network access method, a relevant device and a system are provided. The network access method includes: storing, by a UE, identifier information of a network node that the UE accesses via a first RAN; and transmitting, by the UE, a connection establishment request comprising the identifier information of the network node to a second RAN while the UE maintains the connection to the first RAN, to enable the second RAN to select the network node for the UE as a network node that the UE accesses via the second RAN.

公开(公告)号：US20200275510A1

公开(公告)日：2020-08-27

申请号：US16495032

申请日：2018-02-14

Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

Inventor： Juan ZHANG

IPC: H04W76/19 ,  H04W76/11

Abstract: A method and an apparatus for session reestablishment, an Access and Mobility Management Function entity AMF, a Session Management Function entity SMF and a terminal are provided. The method includes: AMF obtaining a Non-Access Stratum NAS message transmitted by a terminal, where the NAS message is to request to establish a new packet data unit PDU session connected to a same data network as an initial PDU session, and the NAS message carries first identification information of the initial PDU session and second identification information of the new PDU session assigned by the terminal; and transmitting a session management request to SMF corresponding to the first identification information. The session management request carries the first identification information and the second identification information, and the session management request is to cause the SMF to establish the new PDU session based on the first identification information and the second identification information. The new PDU session is connected to the SMF selected for the initial PDU session.