Method and device for accessing and obtaining user equipment context and user equipment identity

• US 9,264,948 B2
• Filed: 05/04/2015
• Issued: 02/16/2016
• Est. Priority Date: 06/18/2008
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Guo, Xiaolong
• Primary Examiner(s): Skripnikov, Alex
• Application Number:
  US14/703,711
• Publication Number:
  US 20150237539A1
• Time in Patent Office: 288 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: H04W 36/0022 for transferring data sessions between adjacent core network technologies
• CPC Class Codes: H04W 36/0033 with transfer of context information
• CPC Class Codes: H04W 60/00 Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
• CPC Class Codes: H04W 60/04 using triggered events
• CPC Class Codes: H04W 8/06 Registration at serving network Location Register, VLR or user mobility server
• CPC Class Codes: H04W 8/10 between location register and external networks
• CPC Class Codes: H04W 88/005 Data network PoA devices

Abstract

A method and device for accessing and obtaining user equipment (UE) context and UE identity are provided. The method for access includes: when a UE accesses a System Architecture Evolution (SAE) network, judging, by a network node, whether a Globally Unique Mobility Management Entity Identifier (GUMMEI) carried by the UE or a Mobility Management Entity Group Identity (MMEGI) in the GUMMEI is allocated or mapped by the SAE network; if the GUMMEI or MMEGI is allocated by the SAE network, selecting, by the network node, a Mobility Management Entity (MME) according to the GUMMEIA network device includes an identity attribute obtaining module and a network resource node allocation module. Therefore, the access of the UE is achieved.

Claims

1. A method for access, comprising:

generating, by a Serving General Packet Radio Service (GPRS) Support Node (SGSN), a message, wherein the message comprises an old Routing Area Identification (RAI) and a Packet Temporary Mobile Subscriber Identity (P-TMSI);

transmitting, by the SGSN, the message to an old Mobility Management Entity (MME) according to an address of the old MME, wherein the address of the old MME is found by the SGSN according to the old RAI and the P-TMSI carried by a user equipment (UE); and

,

receiving, by the SGSN, a UE context of the UE transmitted from the old MME in response of the message, wherein the UE context of the UE is obtained by the SGSN according to a Global Unique Temporary Identity (GUTI), and the GUTI is reconstructed by the SGSN according to the old RAI and the P-TMSI.

2. A network device, comprising:

a processor, configured to generate a message, wherein the message comprises an old Routing Area Identification (RAI) and a Packet Temporary Mobile Subscriber Identity (P-TMSI);

a transmitter, configured to transmit the message to an old Mobility Management Entity (MME) according to an address of the old MME, wherein the address of the old MME is found by the SGSN according to the old RAI and the P-TMSI carried by a user equipment (UE); and

,

a receiver, configured to receive a UE context of the UE transmitted from the old MME in response of the message, wherein the UE context of the UE is obtained by the SGSN according to a Global Unique Temporary Identity (GUTI), and the GUTI is reconstructed by the SGSN according to the old RAI and the P-TMSI.