Resource management method and apparatus for use in wireless communication system

• US 10,390,265 B2
• Filed: 10/22/2018
• Issued: 08/20/2019
• Est. Priority Date: 04/11/2013
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Won, Sung Hwan, Cho, Songyean, Jeong, Sangsoo
• Primary Examiner(s): Hong, Dung
• Application Number:
  US16/167,356
• Publication Number:
  US 20190059028A1
• Time in Patent Office: 302 Days
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 36/0066 of control information between different types of networks in order to establish a new radio link in the target network
• CPC Class Codes: H04W 36/00692 using simultaneous multiple data streams, e.g. cooperative multipoint [CoMP], carrier aggregation [CA] or multiple input multiple output [MIMO] allocation of physical resources in CoMP or in CA H04L5/0035

Abstract

A resource management method and apparatus allows or restricts use of some or all of the resources of entities of a wireless communication system. A radio resource management method of a radio access point includes receiving a measurement report from a terminal, selecting another radio access point for serving the terminal in cooperation with the serving radio access point based on the measurement report and a Handover Restriction List (HRL), and transmitting a request for serving the terminal to the selected another radio access point.

Claims

1. A method by a first base station in a wireless communication system, the method comprising:

receiving, from a mobility management entity, access restriction information for a user equipment (UE), wherein the access restriction information for the UE includes information on restrictions to be applied for a mobility action;

selecting a second base station based on the access restriction information for the UE;

transmitting, to the selected second base station, a second base station addition request message, which includes a serving PLMN identifier, for requesting allocation of resources for dual connectivity of the UE; and

receiving a response message in response to the second base station addition request message from the selected second base station,

wherein the serving PLMN identifier is used for managing radio resources according to the dual connectivity by the second base station.

2. The method of claim 1, wherein the second base station addition request message comprises a Secondary evolved Node B (SeNB) ADDITION REQUEST message and the response message comprises a SeNB ADDITION ACKNOWLEDGE message.

3. The method of claim 1, wherein the access restriction information includes a list of public land mobile network (PLMN) identifiers.

4. The method of claim 1, wherein the first base station comprises a Master evolved Node B (MeNB) and the second base station comprises a Secondary evolved Node B (SeNB).

5. The method of claim 1, further comprising:

receiving a measurement report from the UE,

wherein the second base station is selected in further consideration of the measurement report.

6. The method of claim 1, further comprising:

editing, if the received response message is a reject message including cause of rejection, neighbor relation table (NRT) based on the cause of rejection.

7. A method by a second base station in a wireless communication system, the method comprising:

receiving, from a first base station, a second base station addition request message, which includes a serving public land mobile network (PLMN) identifier, for requesting allocation of resources for dual connectivity of a user equipment (UE); and

transmitting a response message in response to the second base station addition request message to the first base station,

wherein the second base station is selected based on access restriction information for the UE,

wherein the access restriction information for the UE is transmitted by a mobility management entity to the first base station, and the access restriction information for the UE includes information on restrictions to be applied for a mobility action; and

wherein the serving PLMN identifier is used for managing radio resources according to the dual connectivity by the second base station.

8. The method of claim 7, wherein the second base station addition request message comprises a Secondary evolved Node B (SeNB) ADDITION REQUEST message and the response message comprises a SeNB ADDITION ACKNOWLEDGE message, and

wherein the access restriction information includes a list of public land mobile network (PLMN) identifiers.

9. The method of claim 7, wherein the first base station comprises a Master evolved Node B (MeNB) and the second base station comprises a Secondary evolved Node B (SeNB).

10. The method of claim 7, wherein the response message comprises at least one serving PLMN identifier selected by the second base station and comprises load status corresponding to the at least one serving PLMN identifier.

11. A first base station in a wireless communication system, the first base station comprising:

a communication unit; and

a controller coupled with the communication unit and configured to;

receive, from a mobility management entity, access restriction information for a user equipment (UE), wherein the access restriction information for the UE includes information on restrictions to be applied for a mobility action;

select a second base station based on the access restriction information for the UE;

transmit, to the selected second base station, a second base station addition request message, which includes a serving PLMN identifier, for requesting allocation of resources for dual connectivity for the UE; and

receive a response message in response to the second base station addition request message from the selected second base station,

wherein the serving PLMN identifier is used for managing radio resources according to the dual connectivity by the second base station.

12. The first base station of claim 11, wherein the second base station addition request message comprises a Secondary evolved Node B (SeNB)ADDITION REQUEST message and the response message comprises a SeNB ADDITION ACKNOWLEDGE message.

13. The first base station of claim 11, wherein the access restriction information includes a list of public land mobile network (PLMN) identifiers.

14. The first base station of claim 11, wherein the first base station comprises a Master evolved Node B (MeNB) and the second base station comprises a Secondary evolved Node B (SeNB).

15. The first base station of claim 11, wherein the controller is further configured to control receiving a measurement report from the UE, and

wherein the second base station is selected in further consideration of the measurement report.

16. The first base station of claim 11, wherein the controller is further configured to control editing neighbor relation table (NRT) based on cause of rejection if the received response message is a reject message including the cause of rejection.

17. A second base station in a wireless communication system, the second base station comprising:

a communication unit; and

a controller coupled with the communication unit and configured to;

receive, from a first base station, a second base station addition request message, which includes a serving public land mobile network (PLMN) identifier, for requesting allocation of resources for dual connectivity of an user equipment (UE); and

transmit a response message in response to the second base station addition request message to the first base station,

wherein the second base station is selected based on access restriction information for the UE,

wherein the access restriction information for the UE is transmitted by a mobility management entity to the first base station, and the access restriction information for the UE includes information on restrictions to be applied for a mobility action; and

wherein the serving PLMN identifier is used for managing radio resources according to the dual connectivity by the second base station.

18. The second base station of claim 17, wherein the second base station addition request message comprises a Secondary evolved Node B (SeNB) ADDITION REQUEST message and the response message comprises SeNB ADDITION ACKNOWLEDGE message, and

wherein the access restriction information includes a list of public land mobile network (PLMN) identifiers.

19. The second base station of claim 17, wherein the first base station comprises a Master evolved Node B (MeNB) and the second base station comprises a Secondary evolved Node B (SeNB).

20. The second base station of claim 17, wherein the response message comprises at least one serving PLMN identifier selected by the second base station and comprises load status corresponding to the at least one serving PLMN identifier.