Determining the need for a routing area update for packet switched handover in multi-operator core network
First Claim
1. A method implemented by a node in a source Radio Access Network (RAN) to control handover of a mobile station (MS) from a source cell of the source RAN operating in packet switched (PS) domain to a target cell of a target RAN operating in PS domain, the target RAN supporting multi-operator core network (MOCN), the method comprising the steps of:
- transmitting system information about the target cell for handover by the node to the MS, the system information including a selected public land mobile network (PLMN), location area code (LAC) of the target cell, and routing area code (RAC) of the target cell; and
sending a PS handover command to the MS,wherein the selected PLMN and the LAC of the target cell is transmitted in a system information 3 (SI3) message sent on a Packet Associated Control Channel (PACCH).
1 Assignment
0 Petitions
Accused Products
Abstract
A method implemented by a MS for controlling handover of the MS from a source cell of a source RAN operating in PS domain to a target cell of a target RAN operating in PS domain where the target RAN supports MOCN. The method includes receiving SI transmitted by a node of the source RAN. The SI includes a selected PLMN, LAC of the target cell, and RAC of the target cell. The MS executes handover to the target RAN. A target RAI is determined using the selected PLMN, LAC of the target cell, and RAC of the target cell from the SI transmitted by the node of the source RAN. The target RAI is compared to a registered RAI of the MS. The MS determines whether a RAU is needed in the target RAN based on the comparison of the target RAI to the registered RAI.
-
Citations
20 Claims
-
1. A method implemented by a node in a source Radio Access Network (RAN) to control handover of a mobile station (MS) from a source cell of the source RAN operating in packet switched (PS) domain to a target cell of a target RAN operating in PS domain, the target RAN supporting multi-operator core network (MOCN), the method comprising the steps of:
-
transmitting system information about the target cell for handover by the node to the MS, the system information including a selected public land mobile network (PLMN), location area code (LAC) of the target cell, and routing area code (RAC) of the target cell; and sending a PS handover command to the MS, wherein the selected PLMN and the LAC of the target cell is transmitted in a system information 3 (SI3) message sent on a Packet Associated Control Channel (PACCH). - View Dependent Claims (2, 3, 4)
-
-
5. A method by a mobile station (MS) for controlling handover of the MS from a source cell of a source Radio Access Network (RAN) operating in packet switched (PS) domain to a target cell of a target RAN operating in PS domain, the target cell supporting multi-operator core network (MOCN), the method comprising the steps of:
-
receiving system information transmitted by a node of the source RAN including a selected public land mobile network (PLMN), location area code (LAC) of the target cell, and routing area code (RAC) of the target cell; executing handover to the target RAN; determining a target routing area identity (RAI) using the selected PLMN, LAC of the target cell, and RAC of the target cell from the system information transmitted by the node of the source RAN; comparing the target routing area identity (RAI) to a registered RAI; and determining whether a routing area update (RAU) is needed in the target RAN based on the comparison of the target RAI to the registered RAI. - View Dependent Claims (6, 7, 8, 9, 10)
-
-
11. A node of a source radio access network (RAN) for controlling handover of a mobile station (MS) from a source cell of the source RAN operating in packet switched (PS) domain to a target cell of a target RAN operating in PS domain, the target RAN supporting multi-operator core network (MOCN), comprising:
-
a processor; a RAN system information module executed by the processor to transmit system information to the MS, the system information about the target cell for handover including a selected public land mobile network (PLMN), location area code (LAC) of the target cell, and routing area code (RAC) of the target cell; and a RAN handover module executed by the processor to send a PS handover command to the MS, wherein the selected PLMN and the LAC of the target cell is transmitted in a system information 3 (S13) message sent on a Packet Associated Control Channel (PACCH). - View Dependent Claims (12, 13, 14)
-
-
15. A mobile station (MS) configured for handover from a source cell of a source radio access network (RAN) operating in packet switched (PS) domain to a target cell of a target RAN operating in PS domain, the target RAN supporting multi-operator core network (MOCN), comprising:
-
a processor; a MS system information module executed by the processor to receive system information transmitted by a node of the source RAN including a selected public land mobile network (PLMN), location area code (LAC) of the target cell, and routing area code (RAC) of the target cell; a MS handover module executed by the processor to execute handover to the target RAN; a routing area update (RAU) module executed by the processor to determine a target routing area identity (RAI) using the selected PLMN, LAC of the target cell, and RAC of the target cell from the system information transmitted by the node of the source RAN, the RAU module further configured to compare the target routing area identity (RAI) to a registered RAI, and to determine whether a routing area update (RAU) is needed in the target RAN based on the comparison of the target RAI to the registered RAI. - View Dependent Claims (16, 17, 18, 19, 20)
-
Specification