Method and base station equipment for controlling sending of reference signal for sounding

A reference signal and base station technology, applied in the field of communication, can solve the problems of affecting cell throughput, small role of SRS, occupying wireless resources, etc.

Active Publication Date: 2018-06-19
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0007] Embodiments of the present invention provide a method and base station equipment for controlling the transmission of the sounding reference signal SRS, to solve the problem that when the base station determines to adopt the codebook-based beamforming method, the role of the SRS is small and the SRS is frequently sent uplink It will occupy a certain amount of uplink wireless resources and affect the uplink throughput of the cell

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  • Method and base station equipment for controlling sending of reference signal for sounding
  • Method and base station equipment for controlling sending of reference signal for sounding

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Embodiment Construction

[0019] Embodiments of the present invention provide a method for controlling SRS transmission and base station equipment, which are used to reduce occupation of uplink radio resources by SRS and improve uplink throughput when a codebook-based beamforming method is adopted.

[0020] Such as figure 1 As shown, a method for controlling the sending of an SRS provided in an embodiment of the present invention includes:

[0021] S101. The base station determines channel state information of the terminal;

[0022] S102. The base station determines, according to the channel state information, a beamforming method adopted for data transmission with the terminal;

[0023] S103. When it is determined that the beamforming method is codebook-based beamforming, send an indication message to the terminal to instruct the terminal to increase the SRS transmission cycle, or instruct the terminal to only receive The base station sends the SRS during signaling.

[0024] Specifically, the chann...

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Abstract

Embodiments of the present invention provide a method for controlling SRS transmission and base station equipment, which are used to reduce the occupation of uplink wireless resources by SRS and improve uplink throughput; the method includes: the base station determines the channel state information of the terminal; the base station according to The channel state information determines the beamforming method adopted by the terminal to transmit data; when it is determined that the beamforming method is codebook-based beamforming, an indication message is sent to the terminal to indicate The terminal increases the sending period of the SRS, or instructs the terminal to send the SRS only when receiving the signaling from the base station.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method for controlling the transmission of a reference signal for detection and base station equipment. Background technique [0002] In the protocol of the R8 / R9 version of the 3rd Generation Partnership Project (3GPP), a multi-antenna beamforming method based on the uplink sounding reference signal (Souding Reference Signal, SRS) to calculate the forming factor is introduced. The transmission mode (Transmission Mode, TM) 7 and TM8 of TM9 are introduced in the protocol of the R10 version, and TM9 supports codebook-based beamforming. [0003] The SRS can be transmitted on a normal uplink subframe, or on an uplink pilot time slot (Uplink Pilot TimeSlot, UpPTS), which is located in the last single-carrier frequency-division multiple access (Single-carrier Frequency-Division Multiple Access, SC-FDMA) symbol, the evolved Node B (eNB) configures the terminal to send ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04B7/06
Inventor 毛剑慧王启星邓伟
Owner CHINA MOBILE COMM GRP CO LTD
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