Method, device and system for sending surveying reference signal SRS

A technology for measuring reference signals and terminal transmissions. It is used in wireless communication, network traffic/resource management, and access restrictions. It can solve problems such as low network resource utilization, and achieve the effect of increasing scheduling flexibility and resource utilization.
CN102469613AActive Publication Date: 2012-05-23HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUAWEI TECH CO LTD
Publication Date
2012-05-23

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Abstract

The embodiment of the invention provides a method, device and system for sending a surveying reference signal SRS. The method for sending the SRS comprises the steps of: sending DCI (Downlink Control Information) carrying SRS information bits to a terminal, wherein the SRS information bits at least include 2 bits, and the SRS information bits include the information for indicating the terminal to re-perform parameter configuration of periodic SRS or the information for indicating the terminal to perform carrier-crossing triggering of dynamic non-periodic SRS; and receiving the SRS sent by the terminal according to the SRS information bit. According to the embodiment of the invention, some of the configurations of the SRS information bits in the DCI are redefined, so that the DCI can be used for not only the parameter configuration and triggering of the non-periodic SRS but also the realization of other functions, such as re-performing of the parameter configuration of the periodic SRS, the carrier-crossing triggering of the dynamic non-periodic SRS and the like. Therefore, the flexibility in scheduling is improved and the overall resource utilization rate is increased.
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Description

technical field

[0001] Embodiments of the present invention relate to wireless communication technologies, and in particular to a method, device and system for sending a measurement reference signal (sounding reference signal; SRS for short hereinafter). Background technique

[0002] The uplink measurement reference signal is a signal sent by a terminal (User equipment; UE for short) to a base station, and the content of the signal is known to both the terminal and the base station. After the base station receives the SRS, it can measure the wireless channel and related transmission conditions between the terminal and the base station. In Long Term Evolution Advanced (hereinafter referred to as: LTE-A) technology, SRS is divided into two types, the first type is called periodic measurement reference signal (Periodic SRS), and the other type is called dynamic aperiodic measurement Reference signal (Aperiodic SRS). Once the periodic SRS is enabled, the terminal will periodic...

Claims

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