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Method and device for measuring reference signal receiving power

A technology of received power and reference signal, applied in the field of communication network, can solve the problems of inability to obtain the received power of downlink reference signal and inability to set RRU power

Inactive Publication Date: 2013-02-06
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, when using the existing technology to measure the received power of the reference signal, only the received power of multiple RRU signals combined can be obtained. In this way, when multiple RRUs are merged and the cell is over-covered, the downlink reference signal received by each RRU cannot be obtained. Power, which makes it impossible to set the power for the RRU with over-area coverage

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  • Method and device for measuring reference signal receiving power
  • Method and device for measuring reference signal receiving power
  • Method and device for measuring reference signal receiving power

Examples

Experimental program
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Embodiment 1

[0044]An embodiment of the present invention provides a method for measuring the received power of a reference signal, the method is executed by a base station, such as figure 1 As shown, the method includes:

[0045] Step 101, the base station configures the channel state information reference signal CSI-RS at different time-frequency positions for the multi-radio remote unit RRU combined cell or each RRU in the multi-RRU combined cell and its adjacent cells;

[0046] The RRU is a radio remote unit, which means that the radio frequency unit is pulled to the remote coverage target area through the optical fiber, and the baseband signal is transmitted in the optical fiber. The baseband processing unit (Building Baseband Unite, BBU) is centrally placed in the equipment room, the RRU can be installed at the antenna end, and one BBU can support multiple RRUs.

[0047] Because the distance between base stations is too small, it is difficult to solve the interference between cells ...

Embodiment 2

[0095] An embodiment of the present invention provides a device for measuring the received power of a reference signal, the device may be a base station, such as Figure 5 As shown, the device includes: a configuration unit 501, a sending unit 502, and an acquiring unit 503;

[0096] The configuration unit 501 is configured to configure CSI-RSs of different time-frequency positions for each RRU in the multi-RRU combined cell or the multi-RRU combined cell and its neighboring cells;

[0097] The configuration unit 501 can configure different CSI-RSs for different RRUs in a multi-RRU merged cell, where different CSI-RSs mean that the time-frequency positions of the CSI-RS are different, and the time-frequency positions refer to resources in the time dimension and resources in the frequency dimension The resource location where the resource intersects. The resources in the time dimension may be different transmission time intervals (TTIs), and the resources in the frequency dime...

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Abstract

The invention disclose a method and a device for measuring reference signal receiving power (RSRP), which can acquire the RSRP of all RRUs (Radio Remote Units), and relates to the technical field of communication networks. The scheme provided by the embodiment of the invention is that CSI-RSs (Channel State Information-Reference Symbols) at different time frequency positions are configured to all RRUs in a multi-RRU combined cell or the multi-RRU combined cell and the adjacent cells through a base station; the base station sends all the CSI-RSs to UE (User Equipment), so that the UE can conveniently measure the RSRP according to the time-frequency positions of all the CSI-RSs; and the base station receives all the CSI-RSs reported by the UE and the RSRP corresponding to all the CSI-RSs and acquires the RSRP of all the RRUs in the multi-RRU combined cell or the multi-RRU combined cell and the adjacent cells. The embodiment of the invention is suitable for measuring the RSRP.

Description

technical field [0001] The present invention relates to the technical field of communication networks, in particular to a method and device for measuring received power of a reference signal. Background technique [0002] At present, the problem of mutual interference between cells can be solved by using a radio remote unit (Radio Remote Unit, RRU) cell combining technology. Multiple RRUs can be combined into one cell in the following two ways: first, multiple RRUs with the same channel can be combined into one cell, which can be called a single frequency network (Single Frequency Network, SFN) cell; second, by The RRUs of N channels and the RRUs of M channels are combined into one cell, which may be called an N+M cell. [0003] When measuring the downlink reference signal receiving power (Reference Signal Receiving Power, RSRP) of a multi-RRU merged cell, the RSRP is usually measured according to the cell-specific reference signals (Cell-s specific reference signals, CRS),...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/00H04W24/10H04W52/24
CPCH04W24/10H04L5/00H04B7/04H04L5/0007H04L5/005
Inventor 郭涛夏亮简雄军
Owner HUAWEI TECH CO LTD