Method and apparatus for measuring communication quality

Patent metadata

Field	Value
Publication number	US-2016105265-A1
Application number	US-201514973975-A
Country	US
Kind code	A1
Filing date	Dec 18, 2015
Priority date	Jun 19, 2013
Publication date	Apr 14, 2016
Grant date	—

Abstract

A method and an apparatus for measuring communication quality are disclosed. The method includes: acquiring reference signal resource configuration information, where the reference signal resource configuration information at least includes: reference signal port configuration information, and reference signal power information of at least one port group; or the reference signal resource configuration information at least includes: reference signal port configuration information, and a ratio of a power of a data channel in at least one port group to a power of a reference signal; and sending the acquired reference signal resource configuration information to user equipment. Therefore, in a multi-antenna system, accurate signal quality measurement information is acquired, or more accurate channel state information is acquired

First claim

What is claimed is:

1 . A method for measuring communication quality, the method comprising:
determining reference signal resource configuration information comprising reference signal port configuration information, wherein the reference signal port configuration information is used for indicating a mapping relationship between a reference signal port and a port group; and sending the reference signal resource configuration information to user equipment, so that the user equipment acquires signal quality measurement information according to the reference signal port configuration information.

2 . The method according to claim 1 , wherein the reference signal resource configuration information further comprises: reference signal power information of at least two port groups that is used by the user equipment to acquire the signal quality measurement information according to the reference signal port configuration information and in combination with the reference signal power information of the at least two port groups, and the reference signal power information of the at least two port groups comprises:
a reference signal power of a first port group, and a ratio of a reference signal power of each port group among the rest port groups to the reference signal power of the first port group; or a reference signal power of a first port group, and a differential between a reference signal power of each port group among the rest port groups and the reference signal power of the first port group.

3 . The method according to claim 1 , wherein the signal quality measurement information is a reference signal received power (RSRP), and the method further comprises:
sending, to the user equipment, filter coefficient information that is used by the user equipment to perform, based on the filter coefficient information, filtering on the RSRP and obtain a path loss estimation value.

4 . The method according to claim 3 , further comprising:
receiving an uplink physical channel or an uplink physical signal sent by the user equipment, wherein a transmit power of the uplink physical channel or the uplink physical signal is obtained by means of calculation by the user equipment according to the path loss estimation value.

5 . The method according to claim 1 , wherein the signal quality measurement information comprises:
any one or any combination of a reference signal received power (RSRP), a reference signal received quality (RSRQ), and a reference signal strength indicator (RSSI).

6 . The method according to claim 1 , wherein the method further comprises:
receiving the signal quality measurement information sent by the user equipment.

7 . A method for measuring communication quality, the method comprising:
receiving reference signal resource configuration information sent by a base station, wherein the reference signal resource configuration information comprises reference signal port configuration information, wherein the reference signal port configuration information is used for indicating a mapping relationship between a reference signal port and a port group; obtaining reference signal port information in at least one port group according to the reference signal port configuration information; and acquiring signal quality measurement information according to the reference signal port information in the at least one port group.

8 . The method according to claim 7 , wherein:
obtaining reference signal port information in at least one port group according to the reference signal port configuration information comprises:
obtaining reference signal port information in one specified port group according to the reference signal port configuration information; and
acquiring signal quality measurement information according to the reference signal port information in the at least one port group comprises:
acquiring the signal quality measurement information according to the reference signal port information in the one specified port group.

9 . The method according to claim 8 , wherein when the signal quality measurement information is a reference signal received power (RSRP), acquiring the signal quality measurement information according to the reference signal port information in the one specified port group comprises:
obtaining a reference signal received power RSRP(r,p) of a pth port of an rth receive antenna according to a formula

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and obtaining the RSRP by combining RSRP(r,p), wherein ĥ p (m) is a channel estimation on a reference signal RE whose label number is m, K s is a total sample quantity of usable reference signal REs in measurement bandwidth, p is a number of a reference signal port in the one specified port group, and r is an index of a receive antenna.

10 . The method according to claim 7 , wherein the reference signal resource configuration information further comprises: reference signal power information of at least two port groups that is used by the user equipment to acquire the signal quality measurement information according to the reference signal port configuration information and in combination with the reference signal power information of the at least two port groups.

11 . The method according to claim 10 , wherein acquiring the signal quality measurement information according to the reference signal port configuration information and in combination with the reference signal power information of the at least two port groups comprises:
obtaining, according to the reference signal port configuration information, signal quality measurement i

Assignees

• Huawei Tech Co Ltd

Inventors

• Wang Jianguo
• Liu Jianghua
• Zhou Yongxing

Classifications

• H04L1/0026

  Transmission of channel quality indication · CPC title

• H04B17/347

  Path loss · CPC title

• H04L5/0023

  Time-frequency-space · CPC title

• H04L5/0048 Primary

  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

• H04W24/00 Primary

  Supervisory, monitoring or testing arrangements · CPC title