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Measurement reference signal transmission method and configuration indication method and device

A technology for measuring reference signal and sending method, applied in the field of communication

Active Publication Date: 2016-03-09
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, some formats of DCI contain SRS configuration information bits for carrying SRS configuration information (that is, one or more bits that trigger SRS), while some formats of DCI do not, so there is no function of triggering SRS

Method used

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  • Measurement reference signal transmission method and configuration indication method and device
  • Measurement reference signal transmission method and configuration indication method and device
  • Measurement reference signal transmission method and configuration indication method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] An embodiment of the method for issuing measurement reference signal configuration information of the present invention may include: generating at least two downlink control signaling DCIs, each of the at least two DCIs includes measurement reference signal SRS configuration information bits; The subframe sends the aforementioned at least two DCIs to the terminal to jointly indicate the SRS configuration through the SRS configuration information bits in the at least two DCIs.

[0042] See figure 1 , The specific steps can include:

[0043] 110. The wireless access device generates at least two DCIs, and each of the at least two DCIs includes measurement reference signal SRS configuration information bits.

[0044] In practical applications, the wireless access device can specify SRS configuration parameters to the terminal when it needs to measure the wireless channel between it and a terminal (such as measuring channel quality); and the terminal can specify SRS configuration ...

Embodiment 2

[0072] In order to facilitate a better understanding of the technical solutions of the embodiments of the present invention, the following takes the manner in which the wireless access device collectively indicates the SRS configuration of two DCIs of different formats as an example, for a more detailed description.

[0073] 201. The wireless access device generates two DCIs, each of the at least two DCIs includes a measurement reference signal SRS configuration information bit;

[0074] Wherein, the information formats of the above two DCIs may be the same or different.

[0075] In practical applications, when the wireless access device needs to measure the channel quality of the current wireless channel between it and the terminal, it can specify SRS configuration parameters to the terminal; and the terminal can specify SRS configuration parameters according to the wireless access device. To send SRS.

[0076] The wireless access device can jointly code the SRS configuration informa...

example ( 1

[0109] For example, if the DCI of format1a and format4 are sent in the same subframe, both the sender and receiver can process in the following manner. The wireless access device uses joint coding for 1bit in the DCI of Format1a and 2bit in the DCI of Format4. The mapping relationship between the coding and the SRS configuration can be shown in Table 4:

[0110] Table 4

[0111] Format 4 status

Format 1a status

Configuration

00

0

Off

00

1

SRS configuration 5

01

0

SRS configuration 1

01

1

New SRS configuration (SRS configuration 6)

10

0

SRS configuration 2

10

1

New SRS configuration (SRS configuration 7)

11

0

SRS configuration 3

11

1

New SRS configuration (SRS configuration 8)

[0112] On the receiving end, the terminal parses out two DCIs, and then combines the values ​​of the SRS configuration information bits of the two DCIs to determine the corresponding SRS configuration. For example, the terminal parses out that the SRS configuration information bit of t...

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PUM

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Abstract

The embodiment of the present invention discloses a measurement reference signal transmission method, a configuration indication method, and a device, wherein, a measurement reference signal configuration indication method may include: generating at least two downlink control signaling DCIs, and the at least two DCIs Each DCI includes measurement reference signal SRS configuration information bits; the at least two DCIs are sent to the terminal in one subframe, so as to jointly indicate the SRS configuration through the SRS configuration information bits in the at least two DCIs. The solutions in the embodiments of the present invention can improve the accuracy and flexibility of indicating SRS configuration.

Description

Technical field [0001] The present invention relates to the field of communication technology, in particular to a measurement reference signal configuration instruction method, a measurement reference signal transmission method, wireless access equipment, and terminal equipment. Background technique [0002] In the communication process between a terminal (UE, User equipment) and a base station (eNB), a measurement reference signal (SRS, sounding reference signal) is a signal sent by the UE to the base station. The content of the SRS terminal and base station are known. After the base station receives the SRS sent by the terminal, it can measure the wireless channel between the terminal and the base station according to the received SRS. [0003] In systems such as Long Term Evolution Advanced (LTE-A), the base station can notify the terminal to send a measurement reference signal through a physical downlink control channel (PDCCH, Physical Downlink Control Channel). [0004] The t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/12
CPCH04L5/0048H04L5/0053H04L5/0064H04W72/23H04L5/0094H04L1/0031H04L1/08H04W24/10H04J11/00H04W88/02H04W88/08
Inventor 李强大卫·马瑞泽
Owner HUAWEI TECH CO LTD