Dynamic cell cluster interference management scheme using dynamic point selection (DPS) or semi-static point selection (SPSS) for enhanced interference management and traffic adaptation (EIMTA)

Patent metadata

Field	Value
Publication number	US-9986501-B2
Application number	US-201314782300-A
Country	US
Kind code	B2
Filing date	Apr 9, 2013
Priority date	Apr 9, 2013
Publication date	May 29, 2018
Grant date	May 29, 2018

Abstract

Methods and apparatus are disclosed for interference management. The interference management is based on dynamic point selection or semi-static point selection. The method includes determining interference at a plurality of network nodes. The method includes selecting a transmission point from the plurality of network nodes for a transmission to at least one mobile entity based on the determined interference.

First claim

What is claimed is:

1. A method for interference management in a wireless communications system (WCS), the method comprising:
determining, by a network entity, interference between two nodes of a plurality of network nodes; and
selecting, by the network entity, a transmission point, from the plurality of network nodes, for a transmission to at least one mobile entity based on the determined interference and based on a cell status bit associated with the transmission point.

2. The method of claim 1 , wherein selecting the transmission point is based on dynamic point selection of the transmission point on a sub-frame basis.

3. The method of claim 1 , wherein selecting the transmission point is based on semi-static point selection of the transmission point in a semi-static manner.

4. The method of claim 1 , wherein determining the interference is based on at least one of received indications from the plurality of network nodes or reports from mobile entities.

5. The method of claim 1 , wherein determining the interference comprises determining the interference with at least one neighbor network node.

6. The method of claim 5 , further comprising defining a status flag as a first value, of the first value and a second value, based on determining high coupling loss to neighbor network nodes or absence of high data traffic in the neighbor network nodes, wherein selecting the transmission point is based on the status flag being the first value.

7. The method of claim 6 , further comprising transmitting the status flag from one network node in the plurality of network nodes to another network node in the plurality of network nodes.

8. The method of claim 1 , wherein the transmission point is selected based on the cell status bit, associated with the transmission point, being set to a value corresponding to a rate of downlink traffic.

9. A network entity for interference management in a wireless communications system (WCS), the network entity comprising:
at least one processor configured to determine interference between two nodes of a plurality of network nodes, and select a transmission point, from the plurality of network nodes, for a transmission to at least one mobile entity based on the determined interference and based on a cell status bit associated with the transmission point; and
a memory coupled to the at least one processor for storing data.

10. The network entity of claim 9 , wherein the transmission point is selected based on dynamic point selection of the transmission point on a sub-frame basis.

11. The network entity of claim 9 , wherein the transmission point is selected based on semi-static point selection of the transmission point in a semi-static manner.

12. The network entity of claim 9 , wherein the interference is determined with at least one neighbor network node.

13. The network entity of claim 9 , wherein the interference is determined based on at least one of received indications from the plurality of network nodes or reports from mobile entities.

14. The network entity of claim 13 , wherein the at least one processor is further configured to define a status flag as a first value, of the first value and a second value, based on determining high coupling loss to neighbor network nodes or absence of high data traffic in the neighbor network nodes, wherein the transmission point is selected based on the status flag being the first value.

15. The network entity of claim 14 , wherein the at least one processor is further configured to transmit the status flag from one network node in the plurality of network nodes to another network node in the plurality of network nodes.

16. The network entity of claim 9 , wherein the transmission point is selected based on the cell status bit, associated with the transmission point, being set to a value corresponding to a rate of downlink traffic.

17. A network entity for interference management in a wireless communications system (WCS), the network entity comprising:
means for determining interference between two nodes of a plurality of network nodes, and
means for selecting a transmission point, from the plurality of network nodes, for a transmission to at least one mobile entity based on the determined interference and based on a cell status bit associated with the transmission point.

18. The network entity of claim 17 , wherein the transmission point is selected based on dynamic point selection of the transmission point on a sub-frame basis.

19. The network entity of claim 17 , wherein the transmission point is selected based on semi-static point selection of the transmission point in a semi-static manner.

20. The network entity of claim 17 , wherein the interference is determined based on at least one of received indications from the plurality of network nodes or reports from mobile entities.

21. The network entity of claim 17 , wherein the interference is determined with at least one neighbor network node.

22. The network entity of claim 21 , further comprising means for defining a status flag as a first value, of the first value and a second value, based on determining high coupling loss to neighbor network nodes or absence of high data traffic in the neighbor network nodes, wherein the transmission point is selected based on the status flag being the first value.

23. The network entity of claim 22 , further comprising means for transmitting the status flag from one network node in the plurality of network nodes to another network node in the plurality of network nodes.

24. The network entity of claim 17 , wherein the transmission point is selected based on the cell status bit, associated with the transmission point, being set to a value corresponding to a rate of downlink traffic.

25. A non-transitory computer-readable medium storing instructions, the instructions comprising:
one or more instructions that, when executed by at least one network entity, cause the at least one network entity to:
determine interference at a plurality of network nodes, and
select a transmission point, from the plurality of network nodes, for a transmission to at least one mobile entity based on the determined interference and based on a cell status bit associated with the transmission point.

26. The non-transitory computer-readable medium of claim 25 , wherein the transmission point is selected based on dynamic point selection of the transmission point on a sub-frame basis.

27. The non-transitory computer-readable medium of claim 25 , wherein the transmission point is selected based on semi-static point selection of the transmission point in a semi-static manner.

28. The non-transitory computer-readable medium of claim 25 , wherein the interference is determined based on at least one of received indications from the plurality of network nodes or reports from mobile entities.

29. The non-transitory computer-readable medium of claim 25 , wherein the interference is determined with at least one neighbor network node.

30. The non-transitory computer-readable medium of claim 29 , wherein the instructions further comprise:
one or more instructions that, when executed by the at least one network entity, cause the at least one network entity to:
define a status flag as a first value, of the first value and a second value, based on determining high coupling loss to neighbor network nodes or

Assignees

• Qualcomm Inc
• Feng Minghai
• Wang Neng
• Wei Chao
• Hou Jilei

Inventors

• Feng Minghai
• Wang Neng
• Wei Chao
• Hou Jilei

Classifications

• H04W72/54

  based on quality criteria · CPC title

• H04B7/0608

  Antenna selection according to transmission parameters · CPC title

• H04W72/1226

  Electricity · mapped topic

• H04J11/005

  of intercell interference · CPC title

• H04W88/08

  Access point devices · CPC title