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Terminal, base station, and configuration and transmission method of sounding reference signal

A technology of sounding reference signal and configuration method, which is applied in the field of terminal, base station, configuration and transmission of sounding reference signal, and can solve the problems of less physical resources and inability to meet short-delay systems, etc.

Pending Publication Date: 2021-03-26
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current SRS transmission method in the LTE system has few physical resources for SRS transmission, and cannot meet the transmission requirements of short-latency systems and millimeter wave systems.

Method used

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  • Terminal, base station, and configuration and transmission method of sounding reference signal
  • Terminal, base station, and configuration and transmission method of sounding reference signal
  • Terminal, base station, and configuration and transmission method of sounding reference signal

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Embodiment Construction

[0473] Embodiments of the present invention provide a terminal, base station, and SRS configuration and transmission method to provide more SRS transmission resources, which can meet requirements such as uplink channel quality measurement and channel estimation in short-latency systems and millimeter wave systems. requirements.

[0474] In the embodiment of the present invention, the base station sends the configuration information of the SRS subframe to the terminal, and the terminal determines the configuration of the SRS subframe according to the received configuration information, and sends the SRS on the SRS subframe according to the determined configuration of the SRS subframe. Wherein, the SRS subframe is an uplink subframe, or a subframe in which the number of uplink symbols is not less than the number of downlink symbols; and all uplink symbols in the SRS subframe can be used to carry SRS.

[0475] Currently, if Figure 1A As shown, the SRS is only transmitted in the...

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Abstract

The invention relates to the technical field of wireless communication, in particular to a terminal, a base station and a configuration and transmission method of a sounding reference signal (SRS), which are used for providing more transmission resources of the SRS and can meet the requirements of uplink channel quality measurement and channel estimation in a short time delay system and a millimeter wave system. In the SRS configuration method provided by the embodiment of the invention, a base station sends configuration information of an SRS sub-frame to a terminal in a current cell, and instructs the terminal to send the SRS on the SRS sub-frame according to the received configuration information, wherein the SRS sub-frame is an uplink sub-frame or a sub-frame of which the number of uplink symbols is not less than the number of downlink symbols, and all uplink symbols in the SRS sub-frame can be used for bearing the SRS. Compared with the existing LTE system, the embodiment of the invention can be used for transmitting more transmission resources of the SRS.

Description

technical field [0001] The present invention relates to the field of wireless communication technologies, and in particular to a terminal, a base station, and a method for configuring and transmitting a Sounding Reference Signal (SRS). Background technique [0002] The Sounding Reference Signal SRS is an uplink Sounding Reference Signal in a Long Term Evolution (LTE) system, and the base station performs uplink channel estimation according to the SRS sent by the terminal. Moreover, in a Time Division Duplexing (TDD) LTE system, due to the reciprocity of the uplink and downlink channels, the base station can also perform downlink channel estimation according to the SRS, and further, it can also schedule downlink transmission according to the result of the downlink channel estimation . [0003] The current SRS transmission mode in the LTE system has few physical resources available for SRS transmission, and cannot meet the transmission requirements of short-latency systems an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L27/26H04L5/00
CPCH04L5/0051H04W72/0446H04L5/0007H04L5/0092H04L27/2613H04L5/0053H04L5/001H04L5/0091H04L5/0094H04L27/2601
Inventor 李元杰王婷
Owner HUAWEI TECH CO LTD