Interference coordination method, apparatus, and system

Patent metadata

Field	Value
Publication number	US-2016285602-A1
Application number	US-201615179634-A
Country	US
Kind code	A1
Filing date	Jun 10, 2016
Priority date	Dec 13, 2013
Publication date	Sep 29, 2016
Grant date	—

Abstract

An interference coordination method, apparatus, and system are provided in a communications system, which including a first cell and at least one neighboring cell of the first cell. A first cell management apparatus corresponding to the first cell sends configuration information of an uplink reference signal to at least one second cell management apparatus corresponding to the at least one neighboring cell, so that each second cell management apparatus measures the uplink reference signal sent by UE within the first cell, to obtain a second measured value; and the first cell management apparatus measures the uplink reference signal sent by the UE, to obtain a first measured value; an interference coordination apparatus coordinates downlink transmit power of the first cell and the at least one neighboring cell according to the first measured value and at least one second measured value, which effectively reduces inter-cell interference and increases a network capacity

First claim

What is claimed is:

1 . A cell management apparatus, configured to manage a first cell in a communications system, wherein the communications system comprises the first cell and at least one neighboring cell of the first cell, wherein each cell corresponds to one cell management apparatus, a cell management apparatus corresponding to the first cell is a first cell management apparatus, and a cell management apparatus corresponding to the neighboring cell of the first cell is a second cell management apparatus, and the first cell management apparatus comprises a processor and a non-transitory computer readable storage medium, wherein the non-transitory computer readable storage medium stores a program, and when the program is executed by the processor, the following steps are performed:
sending configuration information of an uplink reference signal to at least one second cell management apparatus, wherein the configuration information is used to indicate a position of a resource in which the uplink reference signal is located, so that each second cell management apparatus measures, according to the configuration information and on the resource in which the uplink reference signal is located, the uplink reference signal sent by user equipment within the first cell, to obtain a second measured value; measuring, according to the configuration information and on the resource in which the uplink reference signal is located, the uplink reference signal sent by the user equipment within the first cell, to obtain a first measured value; and sending the first measured value to an interference coordination apparatus, so that the interference coordination apparatus coordinates downlink transmit power of the first cell and downlink transmit power of the at least one neighboring cell of the first cell according to the first measured value and at least one second measured value.

2 . The apparatus according to claim 1 , wherein when the program is executed by the processor, the following step is further performed:
receiving the second measured value sent by each second cell management apparatus.

3 . The apparatus according to claim 2 , wherein when the program is executed by the processor, the following step is further performed:
sending the at least one second measured value to the interference coordination apparatus.

4 . The apparatus according to claim 2 , when the program is executed by the processor, the following steps are further performed:
determining interference information according to the first measured value and the at least one second measured value; and sending the interference information to the interference coordination apparatus, so that the interference coordination apparatus groups multiple cells in the communications system into at least one cluster according to the interference information, wherein the first cell and at least one neighboring cell of the first cell belong to a same cluster.

5 . The apparatus according to claim 1 , wherein the uplink reference signal is a sounding reference signal (SRS).

6 . The apparatus according to claim 1 , wherein the resource in which the uplink reference signal is located comprises a time resource, a frequency resource, or a time-frequency resource in which the uplink reference signal is located.

7 . The apparatus according to claim 1 , wherein:
the first measured value comprises uplink reference signal received power (RSRP) or uplink reference signal received quality (RSRQ); and the second measured value comprises uplink reference signal received power (RSRP) or uplink reference signal received quality (RSRQ).

8 . A cell management apparatus, configured to manage a neighboring cell of a first cell in a communications system, wherein the communications system comprises the first cell and at least one neighboring cell of the first cell, wherein each cell corresponds to one cell management apparatus, a cell management apparatus corresponding to the first cell is a first cell management apparatus, and a cell management apparatus corresponding to the neighboring cell of the first cell is a second cell management apparatus, and the second cell management apparatus comprises a processor and a non-transitory computer readable storage medium, wherein the non-transitory computer readable storage medium stores a program, and when the program is executed by the processor, the following steps are performed:
receiving configuration information, of an uplink reference signal, sent by the first cell management apparatus, wherein the configuration information is used to indicate a position of a resource in which the uplink reference signal is located; and measuring, according to the configuration information and on the resource in which the uplink reference signal is located, the uplink reference signal sent by user equipment within the first cell, to obtain a second measured value, wherein the second measured value is used by an interference coordination apparatus to coordinate downlink transmit power of the first cell and downlink transmit power of the at least one neighboring cell of the first cell.

9 . The apparatus according to claim 8 , wherein when the program is executed by the processor, the following step is further performed:
sending the second measured value to the interference coordination apparatus.

10 . The apparatus according to claim 8 , wherein when the program is executed by the processor, the following step is further performed:
sending the second measured value to the first cell management apparatus, wherein the second measured value is sent by the first cell management apparatus to the interference coordination apparatus, or the second measured value is used by the first cell management apparatus to determine interference information, so that the interference coordination apparatus groups multiple cells in the communications system into at least one cluster according to the interference information, wherein the first cell and at least one neighboring cell of the first cell belong to a same cluster.

11 . The apparatus according to claim 8 , wherein the uplink reference signal is a sounding reference signal (SRS).

12 . The apparatus according to claim 8 , wherein the resource in which the uplink reference signal is located comprises a time resource, a frequency resource, or a time-frequency resource in which the uplink reference signal is located.

13 . The apparatus according to claim 8 , wherein:
the second measured value comprises uplink reference signal received power (RSRP) or uplink reference signal received quality (RSRQ).

14 . An interference coordination apparatus, configured to coordinate downlink transmit power of multiple cells in a communications system, wherein the multiple cells comprise a first cell and at least one neighboring cell of the first cell, wherein each cell corresponds to one cell management apparatus, a cell management apparatus corresponding to the first cell is a first cell management apparatus, and a cell management apparatus corresponding to the neighboring cell of the first cell is a second cell management apparatus, and the interference coordination apparatus comprises a processor and a non-transitory computer readable storage medium, wherein the non-transitory computer readable storage medium stores a program, and when the program is executed by the processor, the following steps are performed:
obtaining a first measured value and at least one second measured value, wherein the first measured value is obtained by the first cell management apparatus by measurement, on a resource in which an uplink reference signal is loca

Assignees

• Huawei Tech Co Ltd

Inventors

• Fang Zhipeng

Classifications

• H04W72/27

  between access points · CPC title

• H04W72/541

  using the level of interference · CPC title

• H04W24/08

  Testing, {supervising or monitoring} using real traffic · CPC title

• H04L5/0048

  Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091) · CPC title

• H04W52/143

  Downlink power control · CPC title