Method and device for sending measurement reference signal

A technology for measuring reference signals and control information, applied in the field of communications, can solve problems such as inability to judge when, asymmetric configuration of the transceiver antenna, and no solution proposed.
CN102355293AInactive Publication Date: 2012-02-15ZTE CORP
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
ZTE CORP
Publication Date
2012-02-15
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a method and a device for sending a measurement reference signal. The method comprises the following steps that: user equipment select an antenna or an antenna group to send the measurement reference signal, wherein the user equipment determine the antenna or the antenna group for sending the measurement reference signal according to an antenna mapping rule, or an antenna selection rule or an antenna selection mask in the format of downlink control information. With the technical scheme of the invention, the problem of reciprocity of some channels caused by the traditional standard methods is solved, so that a base station end can obtain integral downlink CSI (Channel State Information) based on the channel reciprocity, and the optimal pre-coding matrix can be used for each PRB (Physical Resource Block) during downlink transmission so as to obtain frequency selective pre-coding gain.
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Description

technical field

[0001] The present invention relates to the communication field, in particular, to a method and device for transmitting a measurement reference signal. Background technique

[0002] In the 3rd Generation Partnership Project (The 3rd Generation Partnership Project, referred to as 3GPP) Long Term Evolution (LTE for short) system, the uplink signal includes a Physical Uplink Shared Channel (Physical Uplink Shared Channel, PUSCH for short) and Its demodulation reference signal (Demodulation Reference Signal for PUSCH), physical uplink control channel (Physical Uplink Control Channel, referred to as PUCCH) and its demodulation reference signal (Demodulation Reference Signal for PUCCH), measurement reference signal (Sounding Reference Signal, referred to as for SRS) and so on.

[0003] A measurement reference signal (Sounding Reference Signal, SRS for short) is a signal used between a terminal device and a base station to measure wireless channel information (Chan...

Claims

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