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Methods for sending and receiving configuration information triggering SRS (Sounding Reference Signal), base station and user equipment (UE)

A technology for configuring information and triggering information, applied in baseband systems, wireless communication, pilot signal distribution, etc., can solve the problem of occupying a lot of bits, and achieve the effect of reducing the number of bits

Inactive Publication Date: 2014-04-30
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the process of implementing the present invention, the inventors found that the prior art has at least the following problems: Since the trigger information includes information about SRS subframes and information indicated by some systems, considering the PDCCH capacity of the system, each PDCCH trigger information still takes up a lot of bits

Method used

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  • Methods for sending and receiving configuration information triggering SRS (Sounding Reference Signal), base station and user equipment (UE)
  • Methods for sending and receiving configuration information triggering SRS (Sounding Reference Signal), base station and user equipment (UE)
  • Methods for sending and receiving configuration information triggering SRS (Sounding Reference Signal), base station and user equipment (UE)

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Experimental program
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Embodiment 1

[0021] The method for sending triggering SRS configuration information according to Embodiment 1 of the present invention can transmit some information that should be transmitted on the PDCCH in an implicit manner according to the relative position of the PDCCH triggering information within one SRS subframe period. Referring to Fig. 2 (A), this method comprises the following steps:

[0022] Step 101: Determine the implicit information corresponding to the first configuration information through the preset correspondence between the first configuration information and the implicit information;

[0023] In this embodiment, the base station presets the SRS subframe period N, the correspondence between the implicit information and the subframe number, and the correspondence between the first configuration information and the implicit information. Preferably, the base station determines the number of bits of the implicit information through the SRS subframe period, and the number o...

Embodiment 2

[0049] Embodiment 2 of the present invention provides a method for receiving triggering SRS configuration information, see Figure 2 (B). The method includes the following steps:

[0050] Step 201: Receive trigger information, and determine the subframe where the trigger information is located;

[0051] By receiving the trigger information, the subframe in which the trigger information is located can be determined according to the subframe in which the trigger information is received.

[0052] Step 202: According to the correspondence between the implicit information and the subframe number in the SRS subframe period, the implicit information is obtained according to the subframe number of the subframe where the trigger information is located in the SRS subframe period;

[0053] For the UE accessing the cell, first obtain the system information; through the obtained system information, the UE can obtain the number of bits corresponding to the implicit information carried by the...

Embodiment 3

[0062] Embodiment 3 of the present invention provides a base station, which includes an implicit information determination module 301 , a subframe determination module 302 and a trigger module 303 .

[0063] The implicit information determining module 301 is configured to determine the implicit information corresponding to the first configuration information through the preset correspondence between the first configuration information and the implicit information;

[0064] The subframe determination module 302 is used to determine the subframe corresponding to the implicit information through the correspondence between the preset implicit information and the subframe number in the SRS subframe period;

[0065] The triggering module 303 is configured to trigger the UE by sending trigger information on the subframe, where the trigger information includes second configuration information.

[0066] The base station may further include an information sending module, configured to s...

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Abstract

A method, base station and user equipment(UE) for transmitting and receiving trigger Sounding Reference Signal(SRS) configuration information are provided, which relate to the wireless communication field. The method for transmitting the trigger SRS configuration information includes the following steps: hidden information corresponding to first configuration information is confirmed by the preset correspondence between said first configuration information and the hidden information; a sub-frame corresponding to the hidden information is confirmed by the preset correspondence between said hidden information and a sub-frame number during an SRS sub-frame period; the UE is triggered by transmitting the trigger information on said sub-frame; second configuration information is contained in said trigger information. The bits taken by each Physical Control Channel trigger information are decreased by triggering corresponding positions of the Physical Downlink Control Channel(PDCCH) to carry the hidden information.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method for sending and receiving triggering SRS (Sounding Reference Signal, measurement reference signal) configuration information. Background technique [0002] The LTE-A (Long Term Evolution Advanced, further long-term evolution) technology is a further evolution of the LTE (Long Term Evolution, long-term evolution) system. In LTE technology, UE (User Equipment, user equipment) needs to transmit SRS (Sounding Reference Signal, measurement reference signal) to eNB (Evolved Node B, evolved Node B) to help eNB obtain uplink channel information, so as to realize frequency selection Flexible scheduling (used to select a more suitable transmission frequency band for UE), link adaptation and other functions. In the LTE technology, each cell periodically reserves a certain time-frequency resource for transmitting SRS to each UE. Specifically, every N subfram...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04W72/00
CPCH04W28/06H04L25/0224H04L5/0048
Inventor 李强周明宇吴作敏
Owner HUAWEI TECH CO LTD
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