MECHANISMS FOR INFORMATION EXCHANGE ACROSS CELLS TO FACILITATE RECEPTION IN A HETEROGENEOUS NETWORK

• US 20110141971A1
• Filed: 06/15/2010
• Published: 06/16/2011
• Est. Priority Date: 06/16/2009
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Xu, Hao, Luo, Tao, Wei, Yongbin, Malladi, Durga Prasad, Zhang, Xiaoxia
• Granted Patent: US 10,090,956 B2
• Time in Patent Office: Days
• US Class Current: 370/328
• CPC Class Codes: H04J 11/004 using regenerative subtractive interference cancellation
• CPC Class Codes: H04W 84/045 using private Base Stations, e.g. femto Base Stations, home Node B
• CPC Class Codes: H04W 92/20 between access points

Abstract

A method, an apparatus, and a computer program product for wireless communication are provided in which a signal including a signal from a UE is received. System information of a neighboring eNodeB is obtained. The received signal is processed based on the system information in order to enhance the received signal with respect to the signal from the UE.

Claims

1. A method of wireless communication, comprising:

receiving a signal including a signal from a user equipment (UE);

obtaining system information of a neighboring eNodeB; and

processing the received signal based on the system information in order to enhance the received signal with respect to the signal from the UE.

2. The method of claim 1, wherein the received signal includes a signal from a second UE in communication with the neighboring eNodeB and the processing comprises canceling the signal from the second UE from the received signal based on the system information in order to improve a signal to interference ratio of the received signal with respect to the signal from the UE.

3. The method of claim 2, wherein the system information is information for decoding a physical random access channel (PRACH) transmission from the second UE.

4. The method of claim 2, wherein the system information is information for decoding a physical uplink control channel (PUCCH) transmission from the second UE.

5. The method of claim 2, wherein the system information is information for decoding a physical uplink shared channel (PUSCH) transmission from the second UE.

6. The method of claim 1, wherein the system information is obtained through an X2 backhaul with the neighboring eNodeB.

7. The method of claim 1, wherein the system information is obtained from a broadcast by the neighboring eNodeB.

8. The method of claim 1, further comprising requesting a second UE to obtain the system information from the neighboring eNodeB, wherein the system information is obtained from the second UE.

9. The method of claim 1, further comprising obtaining additional information comprising a global cell identification of the neighboring eNodeB.

10. An apparatus for wireless communication, comprising:

means for receiving a signal including a signal from a user equipment (UE);

means for obtaining system information of a neighboring eNodeB; and

means for processing the received signal based on the system information in order to enhance the received signal with respect to the signal from the UE.

11. The apparatus of claim 10, wherein the received signal includes a signal from a second UE in communication with the neighboring eNodeB and the means for processing cancels the signal from the second UE from the received signal based on the system information in order to improve a signal to interference ratio of the received signal with respect to the signal from the UE.

12. The apparatus of claim 11, wherein the system information is information for decoding a physical random access channel (PRACH) transmission from the second UE.

13. The apparatus of claim 11, wherein the system information is information for decoding a physical uplink control channel (PUCCH) transmission from the second UE.

14. The apparatus of claim 11, wherein the system information is information for decoding a physical uplink shared channel (PUSCH) transmission from the second UE.

15. The apparatus of claim 10, wherein the system information is obtained through an X2 backhaul with the neighboring eNodeB.

16. The apparatus of claim 10, wherein the system information is obtained from a broadcast by the neighboring eNodeB.

17. The apparatus of claim 10, further comprising means for requesting a second UE to obtain the system information from the neighboring eNodeB, wherein the system information is obtained from the second UE.

18. The apparatus of claim 10, further comprising means for obtaining additional information comprising a global cell identification of the neighboring eNodeB.

19. A computer program product, comprising:

a computer-readable medium comprising code for;

receiving a signal including a signal from a user equipment (UE);

obtaining system information of a neighboring eNodeB; and

processing the received signal based on the system information in order to enhance the received signal with respect to the signal from the UE.

20. The computer program product of claim 19, wherein the received signal includes a signal from a second UE in communication with the neighboring eNodeB and the code for processing cancels the signal from the second UE from the received signal based on the system information in order to improve a signal to interference ratio of the received signal with respect to the signal from the UE.

21. The computer program product of claim 20, wherein the system information is information for decoding a physical random access channel (PRACH) transmission from the second UE.

22. The computer program product of claim 20, wherein the system information is information for decoding a physical uplink control channel (PUCCH) transmission from the second UE.

23. The computer program product of claim 20, wherein the system information is information for decoding a physical uplink shared channel (PUSCH) transmission from the second UE.

24. The computer program product of claim 19, wherein the system information is obtained through an X2 backhaul with the neighboring eNodeB.

25. The computer program product of claim 19, wherein the system information is obtained from a broadcast by the neighboring eNodeB.

26. The computer program product of claim 19, wherein the computer-readable medium further comprises code for requesting a second UE to obtain the system information from the neighboring eNodeB, wherein the system information is obtained from the second UE.

27. The computer program product of claim 19, wherein the computer-readable medium further comprises code for obtaining additional information comprising a global cell identification of the neighboring eNodeB.

28. An apparatus for wireless communication, comprising:

a processing system configured to;

receive a signal including a signal from a user equipment (UE);

obtain system information of a neighboring eNodeB; and

process the received signal based on the system information in order to enhance the received signal with respect to the signal from the UE.

29. The apparatus of claim 28, wherein the received signal includes a signal from a second UE in communication with the neighboring eNodeB, and wherein to process the received signal, the processing system is configured to cancel the signal from the second UE from the received signal based on the system information in order to improve a signal to interference ratio of the received signal with respect to the signal from the UE.

30. The apparatus of claim 29, wherein the system information is information for decoding a physical random access channel (PRACH) transmission from the second UE.

31. The apparatus of claim 29, wherein the system information is information for decoding a physical uplink control channel (PUCCH) transmission from the second UE.

32. The apparatus of claim 29, wherein the system information is information for decoding a physical uplink shared channel (PUSCH) transmission from the second UE.

33. The apparatus of claim 28, wherein the system information is obtained through an X2 backhaul with the neighboring eNodeB.

34. The apparatus of claim 28, wherein the system information is obtained from a broadcast by the neighboring eNodeB.

35. The apparatus of claim 28, wherein the processing system is further configured to request a second UE to obtain the system information from the neighboring eNodeB, wherein the system information is obtained from the second UE.

36. The apparatus of claim 28, wherein the processing system is further configured to obtain additional information comprising a global cell identification of the neighboring eNodeB.