RAN paging and RAN area identifier exchange between base stations
AssigneeSamsung Electronics Co., Ltd.
InventorsKyungmin Park, Esmael Hejazi Dinan
Life of this patent
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Abstract
A first base station receives from a second base station: a cell identifier of a cell of the second base station; and a second radio access network (RAN) area identifier of the cell. A packet for a wireless device in a radio resource control (RRC) inactive state is received. A RAN paging message is sent to the second base station in response to receiving the packet. The RAN paging message is based on a first RAN area identifier of the first base station being identical to the second RAN area identifier.
Claims14
A method for communication performed by a first base station in a wireless communication system, the method comprising:
- receiving, from a second base station, a message related to a setup of an Xn interface, the message including a cell identifier (ID) of the second base station;
- and
- initiating, by the first base station, a radio access network (RAN) paging procedure by sending a RAN paging message to the second base station to page a user equipment (UE) that is in a radio resource control (RRC) inactive state and that was last served by the first base station,
- wherein the RAN paging message comprises at least one of an identifier of the UE, paging discontinuous reception (DRX) information, or RAN paging area information, and
- wherein the RAN paging area information comprises at least one RAN area identifier or at least one cell identifier.
A method for communication by a second base station in a wireless communication system, the method comprising:
- transmitting, to a first base station, a message related to a setup of an Xn interface, the message including a cell identifier (ID) of the second base station;
- receiving, from the first base station, a radio access network (RAN) paging message for initiating a RAN paging procedure to page a user equipment (UE) that is in a radio resource control (RRC) inactive state and that was last served by the first base station;
- and
- paging the UE in the RRC inactive state based on receiving the RAN paging message,
- wherein the received RAN paging message comprises at least one of an identifier of the UE, paging discontinuous reception (DRX) information, or RAN paging area information, and
- wherein the RAN paging area information comprises at least one RAN area identifier or at least one cell identifier.
An apparatus of a first base station in a wireless communication system, the apparatus comprising:
- a transceiver;
- and
- at least one processor coupled to the transceiver,
- wherein the at least one processor is configured to:
- receive, from a second base station, a message related to a setup of an Xn interface, the message including a cell identifier (ID) of the second base station, and
- initiate a radio access network (RAN) paging procedure by sending a RAN paging message to the second base station to page a user equipment (UE) that is in a radio resource control (RRC) inactive state and that was last served by the first base station,
- wherein the RAN paging message comprises at least one of an identifier of the UE, paging discontinuous reception (DRX) information, or RAN paging area information, and
- wherein the RAN paging area information comprises at least one of RAN area identifier or at least one cell identifier.
Dependencies are inferred from the claim text.