Updating the user equipment (UE) allowed closed subscriber group list (ACL)
AssigneeResearch In Motion Limited
InventorsChen Ho Chin, Takashi Suzuki, Richard Charles Burbidge, Gordon Peter Young, Jeffrey William Wirtanen, Muhammad Khaledul Islam, David Philip Hole
Life of this patent
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Abstract
A user equipment (UE) is provided. The UE comprises a processor configured to receive a broadcast control channel (BCCH) comprising a first indication that a restricted access to a closed subscriber group has been changed and to initiate a signaling procedure based on the first indication.
Claims29
A user equipment (UE), comprising:
- a processor configured to:
- receive, at a user equipment (UE), a first indication broadcast on a broadcast control channel (BCCH) from a cell currently serving the UE, the first indication indicating that a restricted access to a closed subscriber group has been changed, wherein the first indication comprises a sequence number;
- determine that the sequence number in the first indication has changed from a sequence number in a previously received indication broadcast from the cell;
- and
- initiate a non access stratum (NAS) signaling procedure with the cell based on determining that the sequence number in the first indication has changed, wherein the NAS signaling procedure synchronizes an access control list (ACL).
An access node (AN), comprising:
- a processor configured to:
- broadcast, on a broadcast control channel (BCCH), a first indication indicating a restricted access to a closed subscriber group has been changed;
- broadcast, on the BCCH, a second indication identifying a user equipment (UE) associated with the restricted access change;
- and
- in response to broadcasting the first indication and the second indication, receiving a synchronization request from the UE to initiate synchronization of the restricted access between the UE and the core network.
A method of synchronizing an allowed closed subscriber group list (ACL), comprising:
- when an ACL stored in a core network is changed:
- broadcasting, on a broadcast control channel (BCCH), a first indication indicating that a restricted access to a closed subscriber group has been changed;
- broadcasting, on the BCCH, a second indication identifying a user equipment (UE) associated with the ACL change;
- and
- in response to broadcasting the first indication and the second indication, receiving a synchronization request from the UE to trigger synchronization of the ACL between the UE and the core network.
A method of synchronizing an allowed closed subscriber group list (ACL), comprising:
- receiving, at a user equipment (UE), a first indication broadcast on a broadcast control channel (BCCH) from a cell currently serving the UE, the first indication indicating that a restricted access to a closed subscriber group has been changed, wherein the first indication comprises a sequence number;
- determining that the sequence number in the first indication has changed from a sequence number in a previously received indication broadcast from the cell;
- and
- initiating, by the UE, a non access stratum signaling procedure with the cell based on determining that the sequence number in the first indication has changed, wherein the non access stratum signaling procedure synchronizes the ACL.
A method of synchronizing an allowed closed subscriber group list (ACL), comprising:
- when an ACL stored in a packet data network is changed to remove a closed subscriber group identity, paging a user equipment (UE) associated with the ACL to initiate a non access stratum signaling procedure in response to the ACL change,
- wherein the non access stratum signaling procedure synchronizes a copy of the ACL stored in the UE with the ACL stored in the packet data network.
Dependencies are inferred from the claim text.