Connection reliability and managing interference created by beamforming

Patent metadata

Field	Value
Publication number	US-9635627-B2
Application number	US-201414539722-A
Country	US
Kind code	B2
Filing date	Nov 12, 2014
Priority date	Nov 12, 2014
Publication date	Apr 25, 2017
Grant date	Apr 25, 2017

Abstract

Various communication systems may benefit for techniques and devices for improved connection reliability and interference management. For example, communication systems of the long term evolution (LTE) of the third generation partnership project (3GPP) or LTE advanced (LTE-A) may benefit from systems and methods for improving connection reliability and managing interference created by beamforming. For example, a method may include preparing at least one interference-protected message to transmit. The method may also include transmitting the at least one interference-protected message preferentially on at least one physical resource block on which beamforming is not allowed.

First claim

I claim:

1. A method, comprising:
preparing at least one interference-protected message to transmit, wherein the at least one interference-protected message comprises at least one of a MSG 2 or a MSG 4 ; and
transmitting the at least one interference-protected message preferentially on at least one physical resource block on which beamforming is not allowed in any cell having overlapping coverage with a cell in which the interference-protected message is being transmitted,
wherein the at least one physical resource block comprises at least one physical resource block that is occupied by at least one of a primary synchronization signal or a secondary synchronization signal.

2. The method of claim 1 , wherein the at least one physical resource block comprises at least one of six central physical resource blocks of a downlink subframe.

3. The method of claim 1 , wherein the at least one interference-protected message comprises all MSG 2 s and MSG 4 s of a network element.

4. The method of claim 1 , wherein the transmitting comprises broadcasting the at least one interference-protected message.

5. The method of claim 1 , wherein the at least one interference-protected message comprises at least one message to be broadcasted in downlink.

6. The method of claim 1 , wherein the transmitting comprises broadcasting the at least one interference-protected message in a broad sector beam.

7. An apparatus, comprising:
at least one processor; and
at least one memory including computer program code,
wherein the at least one memory and the computer program code can be configured to, with the at least one processor, cause the apparatus at least to
prepare at least one interference-protected message to transmit, wherein the at least one interference-protected message comprises at least one of a MSG 2 or a MSG 4 ; and
transmit the at least one interference-protected message preferentially on at least one physical resource block on which beamforming is not allowed in any cell having overlapping coverage with a cell in which the interference-protected message is being transmitted,
wherein the at least one physical resource block comprises at least one physical resource block that is occupied by at least one of a primary synchronization signal or a secondary synchronization signal.

8. The apparatus of claim 7 , wherein the at least one physical resource block comprises at least one of six central physical resource blocks of a downlink subframe.

9. The apparatus of claim 7 , wherein the at least one interference-protected message comprises all MSG 2 s and MSG 4 s of a network element.

10. The apparatus of claim 9 , wherein the network element comprises an evolved Node B.

11. The apparatus of claim 7 , wherein the transmitting comprises broadcasting the at least one interference-protected message.

12. The apparatus of claim 7 , wherein the at least one interference-protected message comprises at least one message to be broadcasted in downlink.

13. The apparatus of claim 7 , wherein the transmitting comprises broadcasting the at least one interference-protected message in a broad sector beam.

14. A non-transitory computer-readable medium encoded with instructions that, when executed in hardware, perform a process, the process comprising:
preparing at least one interference-protected message to transmit, wherein the at least one interference-protected message comprises at least one of a MSG 2 or a MSG 4 ; and
transmitting the at least one interference-protected message preferentially on at least one physical resource block on which beamforming is not allowed in any cell having overlapping coverage with a cell in which the interference-protected message is being transmitted,
wherein the at least one physical resource block comprises at least one physical resource block that is occupied by at least one of a primary synchronization signal or a secondary synchronization signal.

15. The non-transitory computer-readable medium of claim 14 , wherein the interference-protected message is to be protected from beamformed transmissions from a neighboring cell.

16. The non-transitory computer-readable medium of claim 14 , wherein the at least one physical resource block comprises at least one of six central physical resource blocks of a downlink subframe.

17. The non-transitory computer-readable medium of claim 14 , wherein the at least one interference-protected message comprises all MSG 2 s and MSG 4 s of a network element.

18. The non-transitory computer-readable medium of claim 14 , wherein the transmitting comprises broadcasting the at least one interference-protected message.

19. The non-transitory computer-readable medium of claim 14 , wherein the at least one interference-protected message comprises at least one message to be broadcasted in downlink.

20. The non-transitory computer-readable medium of claim 14 , wherein the transmitting comprises broadcasting the at least one interference-protected message in a broad sector beam.

Assignees

• Nokia Solutions & Networks Oy

Inventors

• Krishnamoorthy Arvind

Classifications

• H04B7/0689

  using different transmission schemes, at least one of them being a diversity transmission scheme · CPC title

• H04L5/0044

  Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH · CPC title

• H04L5/00

  Arrangements affording multiple use of the transmission path · CPC title

• H04W56/001 Primary

  Synchronization between nodes · CPC title

• H04L5/0053

  Allocation of signalling, i.e. of overhead other than pilot signals · CPC title