发明名称 |
MME restoration |
摘要 |
A method for a mobility management entity (MME) is disclosed. In some embodiments the method includes: establishing a UE context for a UE; selecting a back-up MME for holding a duplicate context of the user entity; informing a SGW of the selected back-up MME; and transmitting a the duplicate context to the selected back-up MME. |
申请公布号 |
US8908603(B2) |
申请公布日期 |
2014.12.09 |
申请号 |
US201213486303 |
申请日期 |
2012.06.01 |
申请人 |
Telefonaktiebolaget L M Ericsson (Publ) |
发明人 |
Olsson Lars-Bertil;Sundell Hans-Olof |
分类号 |
H04W4/00;H04L1/00 |
主分类号 |
H04W4/00 |
代理机构 |
Rothwell, Figg, Ernst & Manbeck, P.C. |
代理人 |
Rothwell, Figg, Ernst & Manbeck, P.C. |
主权项 |
1. A method in a network in which a mobility management entity (MME) in a pool of MMEs is adapted for communicating with (i) at least one other MME in the pool of MMEs and (ii) a serving gateway (SGW), and is adapted for managing mobility of user entities (UEs) for establishing packet data communication between the SGW and UEs via at least a base station, the method comprising:
establishing a UE context for a user entity (UE); appointing a back-up MME for holding a duplicate UE context of the user entity; informing the SGW of the back-up MME in which the duplicate context is held, or is to be held; and transmitting the duplicate UE context to the appointed back-up MME, wherein said appointing the back-up MME comprises using a predetermined function to select a MME as the back-up MME, wherein each MME in a subgroup of the MMEs in the pool uses said predetermined function to select a back-up MME such that any MME in the subgroup would appoint the same MME as a back-up MME for a given UE, the selected back-up MME being different than a registered MME for the given UE. |
地址 |
Stockholm SE |