MANAGEMENT TECHNIQUES FOR WIRELESS NETWORK MOBILITY PROCEDURES
Connection management techniques for wireless network mobility procedures are described. In one embodiment, for example, an evolved packet core (EPC) node may comprise a processor circuit to receive a notification of a mobility procedure for a user equipment (UE), determine whether to release a local gateway (L-GW)-provided packet data network (PDN) connection of the UE, and in response to a determination that the L-GW-provided PDN connection is to be released, send either a detach request message or a delete session request message to initiate a process for releasing the L-GW-provided PDN connection. Other embodiments are described and claimed.
1 . A mobility management entity (MME), comprising:
processor circuitry to generate a mobility procedure control message for a mobility procedure for a user equipment (UE), and send the mobility procedure control message from a source MME to a target MME over a S10 interface during the mobility procedure, the mobility procedure control message having an information element (IE) for a local home network identifier (LHN-ID) to indicate whether a selected internet protocol traffic offload at local network (SIPTO@LN) is active for a packet data connection (PDN) of the UE.
2 . The MME of claim 1 , wherein the IE for the LHN-ID indicates that the SIPTO@LN is active for the PDN of the UE.
3 . The MME of claim 1 , wherein the SIPTO@LN is active for a stand-alone gateway (GW).
4 . The MME of claim 1 , the mobility procedure control message to comprise a forward relocation request and the mobility procedure to comprise a handover procedure.
5 . The MME of claim 1 , the processor circuitry to send a forward relocation request to a target MME over the S10 interface as part of a S1-based handover relocation procedure.
6 . The MME of claim 1 , the mobility procedure control message to comprise a context response and the mobility procedure to comprise a tracking area update (TAU) procedure.
7 . The MME of claim 1 , the target MME to determine whether a local home network of the UE changes based on a forward relocation request, determine whether to maintain a selected internet protocol traffic offload at local network (SIPTO@LN) packet data network (PDN) connection of the UE following a handover procedure based on whether the local home network of the UE changes, and maintain the SIPTO@LN PDN connection in response to a determination that the local home network of the UE does not change.
8 . The MME of claim 1 , comprising a memory coupled to the processor circuitry, and a memory controller coupled to the memory.
9 . The MME of claim 1 , comprising a network interface coupled to the processor circuitry.
11 . At least one non-transitory computer-readable storage medium comprising a set of instructions that, in response to being executed at a mobility management entity (MME), cause the MME to:
generate a mobility procedure control message for a mobility procedure for a user equipment (UE); and
send the mobility procedure control message from a source MME to a target MME over a S10 interface during the mobility procedure, the mobility procedure control message having an information element (IE) for a local home network identifier (LHN-ID) to indicate whether a selected internet protocol traffic offload at local network (SIPTO@LN) is active for a packet data connection (PDN) of the UE.
12 . The at least one non-transitory computer-readable storage medium of claim 11 , wherein the IE for the LHN-ID indicates that the SIPTO@LN is active for the PDN of the UE.
13 . The at least one non-transitory computer-readable storage medium of claim 11 , wherein the SIPTO@LN is active for a stand-alone gateway (GW).
14 . The at least one non-transitory computer-readable storage medium of claim 11 , the mobility procedure control message to comprise a forward relocation request and the mobility procedure to comprise a handover procedure.
15 . The at least one non-transitory computer-readable storage medium of claim 11 , comprising instructions that, in response to being executed at the MME, cause the MME to send a forward relocation request to a target MME over the S10 interface as part of a S1-based handover relocation procedure.
16 . The at least one non-transitory computer-readable storage medium of claim 11 , the mobility procedure control message to comprise a context response and the mobility procedure to comprise a tracking area update (TAU) procedure.
17 . The at least one non-transitory computer-readable storage medium of claim 11 , wherein the target MME to determine whether a local home network of the UE changes based on a forward relocation request, determine whether to maintain a selected internet protocol traffic offload at local network (SIPTO@LN) packet data network (PDN) connection of the UE following a handover procedure based on whether the local home network of the UE changes, and maintain the SIPTO@LN PDN connection in response to a determination that the local home network of the UE does not change.
18 . A method for a mobility management entity (MME), comprising:
generating a mobility procedure control message for a mobility procedure for a user equipment (UE); and
sending the mobility procedure control message from a source MME to a target MME over a S10 interface during the mobility procedure, the mobility procedure control message having an information element (IE) for a local home network identifier (LHN-ID) to indicate whether a selected internet protocol traffic offload at local network (SIPTO@LN) is active for a packet data connection (PDN) of the UE.
19 . The method of claim 18 , wherein the IE for the LHN-ID indicates that the SIPTO@LN is active for the PDN of the UE.
20 . The method of claim 18 , wherein the SIPTO@LN is active for a stand-alone gateway (GW).
21 . The method of claim 18 , the mobility procedure control message to comprise a forward relocation request and the mobility procedure to comprise a handover procedure.
22 . The method of claim 18 , comprising sending a forward relocation request to a target MME over the S10 interface as part of a S1-based handover relocation procedure.
23 . The method of claim 18 , the mobility procedure control message to comprise a context response and the mobility procedure to comprise a tracking area update (TAU) procedure.
24 . The method of claim 18 , wherein the target MME to determine whether a local home network of the UE changes based on a forward relocation request, determine whether to maintain a selected internet protocol traffic offload at local network (SIPTO@LN) packet data network (PDN) connection of the UE following a handover procedure based on whether the local home network of the UE changes, and maintain the SIPTO@LN PDN connection in response to a determination that the local home network of the UE does not change.