Configuration method and transmission method of sounding reference signals SRS, base station and terminal

A technology of sounding reference signal and configuration method, applied in base stations and terminals, in the field of configuration of sounding reference signal SRS, which can solve the problems of large SRS transmission delay, inflexible scheduling, and large signaling overhead, so as to save signaling overhead, Increase flexibility and ensure the effect of delay requirements

Inactive Publication Date: 2019-04-05
CHINA MOBILE COMM LTD RES INST +1
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Problems solved by technology

[0007] The purpose of the present invention is to provide a sounding reference signal SRS configuration method, transmission method, base station and terminal to solve the existing problems of large SRS transmission delay, inflexible scheduling, and large signaling overhead

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  • Configuration method and transmission method of sounding reference signals SRS, base station and terminal
  • Configuration method and transmission method of sounding reference signals SRS, base station and terminal
  • Configuration method and transmission method of sounding reference signals SRS, base station and terminal

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Embodiment Construction

[0056] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0057] Such as figure 1 As shown, an embodiment of the present invention provides a method for configuring a sounding reference signal SRS, including:

[0058] Step 11, configure an SRS resource set for the terminal; wherein, the SRS resource set includes: a first set of resources that can be used for sending aperiodic SRS and a second set of resources that can be used for sending semi-persistent SRS. Specifically, in the embodiment of the present invention, the SRS resource set is configured for the terminal through system information or high-level signaling.

[0059] It should be noted that in the above embodiments of the present invention, the first resource set and the second resource set can be configured separately through system information or hi...

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Abstract

The invention provides a configuration method and a transmission method of sounding reference signals SRS, a base station and a terminal. The method includes the following steps: configuring an SRS resource set for a terminal, wherein the SRS resource set includes a first resource set which can be used to transmit non-periodic SRSs and a second resource set which can be used to transmit semi-persistent SRSs; and sending a control signaling. According to the embodiment of the invention, whether the terminal activates the transmission of non-periodic SRSs and / or semi-persistent SRSs and which resource of a corresponding resource set is used to transmit non-periodic SRSs and / or semi-persistent SRSs are indicated by a control signaling, so that the terminal can transmit non-periodic SRSs and / or semi-persistent SRSs accurately and in time. The delay requirement of SRS can be ensured, the flexibility of SRS configuration and transmission is increased, and the signaling overhead is saved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a configuration method, a sending method, a base station and a terminal of a sounding reference signal SRS. Background technique [0002] In the NR (air interface) system design, in order to meet URLLC (Ultra reliable and low latency communication) user plane one-way delay less than 0.5ms requirements, a scheduling-free transmission scheme (Grant-free transmission) is proposed , compared with the scheduling-based transmission (Grant-based transmission), it can save the delay caused by the SR-grant (uplink scheduling request authorization) process, but because it is not based on base station scheduling, the transmission reliability becomes worse and the resource utilization rate becomes lower. Low. Therefore, in the discussion of the scheduling-free transmission scheme, many companies believe that the initial scheduling-free (Grant-free) transmission can be gradual...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04W72/04
CPCH04L5/0048H04L5/0094H04L5/0098H04W72/23
Inventor 张轶王飞夏亮柯颋
Owner CHINA MOBILE COMM LTD RES INST
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