Method for transmitting MBSFN subframe configuration information of neighboring cells

• US 9,629,074 B2
• Filed: 05/19/2015
• Issued: 04/18/2017
• Est. Priority Date: 02/10/2009
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Sun, Chengjun, Li, Xiaoqiang, Van Der Velde, Himke, Jeong, Kyeong In, Van Lieshout, Gert-Jan
• Primary Examiner(s): Lee, Jae Y
• Application Number:
  US14/716,301
• Publication Number:
  US 20150257089A1
• Time in Patent Office: 700 Days
• Field of Search: 370241
• CPC Class Codes: H04J 11/0093 Neighbour cell search
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 72/30 Resource management for broadcast services

Abstract

A method and an apparatus for transmitting multimedia broadcast single-frequency network (MBSFN) subframe configuration information of neighboring cells in a wireless system is provided. The method comprises: transmitting, by a base station of a serving cell, MBSFN subframe configuration information of the serving cell to a UE which accepts services from the serving cell via a broadcast control channel (BCCH); transmitting information on a subset relationship of MBSFN subframe configurations of the neighboring cells relative to the MBSFN subframe configuration of the serving cell to the UE which accepts services from the serving cell via the broadcast control channel (BCCH); performing, by the UE, measurements on the neighboring cells according to the subframe configuration information of the serving cell and the information on the subset relationship of the MBSFN subframe configurations of the neighboring cells relative to the MBSFN subframe configuration of the serving cell.

Claims

1. A method for receiving multimedia broadcast single-frequency network (MBSFN) subframe configuration information of a neighboring cell by a terminal, the method comprising:

receiving, by the terminal, first information on MBSFN subframe configuration of a serving cell from a base station of the serving cell via a broadcast control channel (BCCH), the first information indicating at least one subframe that is reserved for MBSFN in downlink;

receiving, by the terminal, second information on neighboring cell configuration from the base station, the second information including information related to MBSFN subframe configuration of at least one neighboring cell relative to the first information of the serving cell; and

measuring, by the terminal, a signal of the at least one neighboring cell on a subframe based on the first information and the second information,

wherein the MBSFN subframe configurations of all the neighboring cells are subsets of the subframe configuration of the serving cell, if the second information is set to 10.

2. The method of claim 1, wherein the at least one neighboring cell is intra-frequency neighboring cell.

3. The method of claim 1, wherein the at least one neighboring cell is inter-frequency neighboring cell.

4. The method of claim 1, wherein the second information includes a first value if no MBSFN subframes are present in the at least one neighboring cells, a second value if MBSFN subframe configurations of all the neighboring cells are subsets of the subframe configuration of the serving cell, and a third value if MBSFN subframe configurations of some of the neighboring cells are not a subset of the subframe configuration of the serving cell.

5. The method of claim 4, wherein same value is include in the second information in case MBSFN subframe configuration of all the neighboring cells are identical and MBSFN subframe configuration of all the neighboring cells included in the subframe configuration of the serving cell.

6. The method of claim 4, wherein the subframe for measuring the signal of the at least one neighboring cell are determined based on the second information,

wherein, if the second information includes the first value, the subframes associated with the measurement information are preset subframes,

wherein, if the second information includes the second value, the subframes associated with the measurement information are subframes of the neighboring cells that are the same as the measurement subframes of the serving cell, and

wherein, if the second information includes the third value, the subframes associated with the measurement information are all subframes of the neighboring cells.

7. The method of claim 1, wherein the second information is received via radio resource control (RRC) signaling.

8. A terminal for receiving multimedia broadcast single-frequency network (MBSFN) subframe configuration information of a neighboring cell, the terminal comprising:

a transceiver configured to transmit and receive a signal; and

a controller configured to;

receive first information on MBSFN subframe configuration of a serving cell from a base station of the serving cell via a broadcast control channel (BCCH), the first information indicating at least one subframe that is reserved for MBSFN in downlink,

receive second information on neighboring cell configuration from the base station, the second information including information related to MBSFN subframe configuration of at least one neighboring cell relative to the first information of the serving cell, and

measure a signal of the at least one neighboring cell on a subframe based on the first information and the second information,

wherein the MBSFN subframe configurations of all the neighboring cells are subsets of the subframe configuration of the serving cell, if the second information is set to 10.

9. The terminal of claim 8, wherein the at least one neighboring cell is intra-frequency neighboring cell.

10. The terminal of claim 8, wherein the at least one neighboring cell is inter-frequency neighboring cell.

11. The terminal of claim 8, wherein the second information includes a first value if no MBSFN subframes are present in the at least one neighboring cells, a second value if MBSFN subframe configurations of all the neighboring cells are subsets of the subframe configuration of the serving cell, and a third value if MBSFN subframe configurations of some of the neighboring cells are not a subset of the subframe configuration of the serving cell.

12. The terminal of claim 11, wherein same value is include in the second information in case MBSFN subframe configuration of all the neighboring cells are identical and MBSFN subframe configuration of all the neighboring cells included in the subframe configuration of the serving cell.

13. The terminal of claim 11, wherein the subframe for measuring the signal of the at least one neighboring cell are determined based on the second information,

wherein, if the second information includes the first value, the subframes associated with the measurement information are preset subframes,

wherein, if the second information includes the second value, the subframes associated with the measurement information are subframes of the neighboring cells that are the same as the measurement subframes of the serving cell, and

wherein, if the second information includes the third value, the subframes associated with the measurement information are all subframes of the neighboring cells.

14. The terminal of claim 8, wherein the second information is received via radio resource control (RRC) signaling.

15. A method for transmitting multimedia broadcast single-frequency network (MBSFN) subframe configuration information of a neighboring cell by a base station, the method comprising:

transmitting, by the base station, first information on MBSFN subframe configuration of a serving cell to a terminal in a serving cell of the base station via a broadcast control channel (BCCH) to a terminal, the first information indicating at least one subframe that is reserved for MBSFN in downlink;

transmitting, by the base station, second information on neighboring cell configuration to the terminal, the second information including information related to MBSFN subframe configuration of at least one neighboring cell relative to the first information of the serving cell; and

receiving, by the base station, measurement information of the at least one neighboring cells from the terminal,

wherein a signal of the at least one neighboring cell on a subframe for the measurement information is measured based on the first information and the second information, and

wherein the MBSFN subframe configurations of all the neighboring cells are subsets of the subframe configuration of the serving cell, if the second information is set to 10.

16. The method of claim 15, wherein the at least one neighboring cell is intra-frequency neighboring cell.

17. The method of claim 15, wherein the at least one neighboring cell is inter-frequency neighboring cell.

18. The method of claim 15, wherein the second information includes a first value if no MBSFN subframes are present in the at least one neighboring cells, a second value if MBSFN subframe configurations of all the neighboring cells are subsets of the subframe configuration of the serving cell, and a third value if MBSFN subframe configurations of some of the neighboring cells are not a subset of the subframe configuration of the serving cell.

19. The method of claim 18, wherein same value is include in the second information in case MBSFN subframe configuration of all the neighboring cells are identical and MBSFN subframe configuration of all the neighboring cells included in the subframe configuration of the serving cell.

20. The method of claim 18, wherein the subframe for measuring the signal of the at least one neighboring cell are determined based on the second information,

wherein, if the second information includes the first value, the subframes associated with the measurement information are preset subframes,

wherein, if the second information includes the second value, the subframes associated with the measurement information are subframes of the neighboring cells that are the same as the measurement subframes of the serving cell, and

wherein, if the second information includes the third value, the subframes associated with the measurement information are all subframes of the neighboring cells.

21. The method of claim 15, wherein the second information is received via radio resource control (RRC) signaling.

22. A base station for transmitting multimedia broadcast single-frequency network (MBSFN) subframe configuration information of a neighboring cell, the base station comprising:

a transceiver configured to transmit and receive a signal; and

a controller configured to;

transmit first information on MBSFN subframe configuration of a serving cell to a terminal in a serving cell of the base station via a broadcast control channel (BCCH), the first information indicating at least one subframe that is reserved for MBSFN in downlink,

transmit second information on neighboring cell configuration to the terminal, the second information including information related to MBSFN subframe configuration of at least one neighboring cell relative to the first information of the serving cell, and

receive measurement information of the at least one neighboring cells from the terminal,

wherein a signal of the at least one neighboring cell on a subframe for the measurement information is measured based on the first information and the second information, and

wherein the MBSFN subframe configurations of all the neighboring cells are subsets of the subframe configuration of the serving cell, if the second information is set to 10.

23. The base station of claim 22, wherein the at least one neighboring cell is intra-frequency neighboring cell.

24. The base station of claim 22, wherein the at least one neighboring cell is inter-frequency neighboring cell.

25. The base station of claim 22, wherein the second information includes a first value if no MBSFN subframes are present in the at least one neighboring cells, a second value if MBSFN subframe configurations of all the neighboring cells are subsets of the subframe configuration of the serving cell, and a third value if MBSFN subframe configurations of some of the neighboring cells are not a subset of the subframe configuration of the serving cell.

26. The base station of claim 25, wherein same value is include in the second information in case MBSFN subframe configuration of all the neighboring cells are identical and MBSFN subframe configuration of all the neighboring cells included in the subframe configuration of the serving cell.

27. The base station of claim 25, wherein the subframe for measuring the signal of the at least one neighboring cell are determined based on the second information,

wherein, if the second information includes the first value, the subframes associated with the measurement information are preset subframes,

wherein, if the second information includes the second value, the subframes associated with the measurement information are subframes of the neighboring cells that are the same as the measurement subframes of the serving cell, and

wherein, if the second information includes the third value, the subframes associated with the measurement information are all subframes of the neighboring cells.

28. The base station of claim 22, wherein the second information is received via radio resource control (RRC) signaling.