Physical layer signaling to user equipment in a wireless communication system

• US 9,496,974 B2
• Filed: 05/20/2015
• Issued: 11/15/2016
• Est. Priority Date: 07/26/2010
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Yoo, Taesang, Luo, Tao, Ji, Tingfang
• Primary Examiner(s): HUANG, WEN WU
• Application Number:
  US14/718,031
• Publication Number:
  US 20150311993A1
• Time in Patent Office: 545 Days
• Field of Search: 455/63.1, 455/63.2
• US Class Current: 1/1
• CPC Class Codes: H04B 15/00 Suppression or limitation of noise or interference by means associated with receiver H04B1/10
• CPC Class Codes: H04J 11/005 of intercell interference
• CPC Class Codes: H04L 25/03891 Spatial equalizers MIMO diversity systems H04B7/0413

Abstract

A method of wireless communication includes receiving physical layer signaling from a serving eNodeB in a wireless network. Interference estimation, interference cancellation and/or spatial equalization of user equipment is controlled in accordance with the received signaling.

Claims

1. A method of wireless communication in a wireless network, comprising:

dynamically negotiating, at a serving eNodeB with at least one neighboring eNodeB, adaptive resource partition information (ARPI) for subframe types of the at least one neighboring eNodeB, the subframe types comprising protected subframes, prohibited subframes, and common subframes; and

transmitting, from the serving eNodeB to a user equipment (UE), physical layer signaling indicating the ARPI of the at least one neighboring eNodeB, the ARPI indicating whether the at least one neighboring eNodeB is permitted to transmit based at least in part on a subframe type of a particular subframe, and the ARPI intended for the UE to control at least one of interference estimation, interference cancellation, spatial equalization of the UE, or a combination thereof.

2. The method of claim 1, in which the physical layer signaling further indicates a loading state of the at least one neighboring eNodeB.

3. The method of claim 1, in which the physical layer signaling is for each neighboring eNodeB or a group of neighboring eNodeBs.

4. The method of claim 1, in which the physical layer signaling further indicates one or more of a subband, a subframe, a particular time period, or a combination thereof.

5. A serving eNodeB for wireless communication, comprising:

a memory; and

at least one processor coupled to the memory, the at least one processor being configured;

to dynamically negotiate, with at least one neighboring eNodeB, adaptive resource partition information (ARPI) for subframe types of the at least one neighboring eNodeB, the subframe types comprising protected subframes, prohibited subframes, and common subframes; and

to transmit, to a user equipment (UE), physical layer signaling indicating the ARPI of the at least one neighboring eNodeB, the ARPI indicating whether the at least one neighboring eNodeB is permitted to transmit based at least in part on a subframe type of a particular subframe, and the ARPI intended for the UE to control at least one of interference estimation, interference cancellation, spatial equalization of the UE, or a combination thereof.

6. The serving eNodeB of claim 5, in which the physical layer signaling further indicates a loading state of the at least one neighboring eNodeB.

7. The serving eNodeB of claim 5, in which the physical layer signaling is for each neighboring eNodeB or a group of neighboring eNodeBs.

8. The serving eNodeB of claim 5, in which the physical layer signaling further indicates one or more of a subband, a subframe, a particular time period, or a combination thereof.

9. A non-transitory computer-readable medium having non-transitory program code recorded thereon, the program code comprising:

program code to dynamically negotiate, at a serving eNodeB with at least one neighboring eNodeB, adaptive resource partition information (ARPI) for subframe types of the at least one neighboring eNodeB, the subframe types comprising protected subframes, prohibited subframes, and common subframes; and

program code to transmit, from the serving eNodeB to a user equipment (UE), physical layer signaling indicating the ARPI of the at least one neighboring eNodeB, the ARPI indicating whether the at least one neighboring eNodeB is permitted to transmit based at least in part on a subframe type of a particular subframe, and the ARPI intended for the UE to control at least one of interference estimation, interference cancellation, spatial equalization of the UE, or a combination thereof.

10. The non-transitory computer-readable medium of claim 9, in which the physical layer signaling further indicates a loading state of the at least one neighboring eNodeB.

11. The non-transitory computer-readable medium of claim 9, in which the physical layer signaling is for each neighboring eNodeB or a group of neighboring eNodeBs.

12. The non-transitory computer-readable medium of claim 9, in which the physical layer signaling further indicates one or more of a subband, a subframe, a particular time period, or a combination thereof.

13. An apparatus for wireless communication, comprising:

means for dynamically negotiating, at a serving eNodeB with at least one neighboring eNodeB, adaptive resource partition information (ARPI) for subframe types of the at least one neighboring eNodeB, the subframe types comprising protected subframes, prohibited subframes, and common subframes; and

means for transmitting, from the serving eNodeB to a user equipment (UE), physical layer signaling indicating the ARPI of the at least one neighboring eNodeB, the ARPI indicating whether the at least one neighboring eNodeB is permitted to transmit based at least in part on a subframe type of a particular subframe, and the ARPI intended for the UE to control at least one of interference estimation, interference cancellation, spatial equalization of the UE, or a combination thereof.

14. The apparatus of claim 13, in which the physical layer signaling further indicates a loading state of the at least one neighboring eNodeB.

15. The apparatus of claim 13, in which the physical layer signaling is for each neighboring eNodeB or a group of neighboring eNodeBs.

16. The apparatus of claim 13, in which the physical layer signaling further indicates one or more of a subband, a subframe, a particular time period, or a combination thereof.