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Information feedback method, base station and user equipment

A user equipment and information feedback technology, applied in the field of communication, can solve problems such as missing DLACK/NACK feedback messages, UL subframe transmission behavior uncertainty, etc.

Active Publication Date: 2018-02-23
CHINA MOBILE COMM LTD RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In some new application scenarios, such as working on unlicensed spectrum, the UL subframe transmission behavior will be uncertain due to the limitation of the UL LBT mechanism, so the traditional DL ACK / NACK feedback mechanism with fixed timing will not Re-adapt, otherwise DL ACK / NACK feedback messages may be lost frequently

Method used

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  • Information feedback method, base station and user equipment
  • Information feedback method, base station and user equipment
  • Information feedback method, base station and user equipment

Examples

Experimental program
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Embodiment 1

[0030] The embodiment of the present invention provides an information feedback method, such as figure 1 shown, including:

[0031] Step 101: Determine a feedback information transmission parameter of at least one user equipment; wherein, the feedback information transmission parameter is used to at least represent a time-domain position parameter of feedback information for downlink information;

[0032] Step 102: Generate downlink control information for the at least one user equipment based on the feedback information transmission parameters, and send the downlink control information to the at least one user equipment.

[0033] Wherein, the time domain position parameter of the feedback information may represent that the base station is used to instruct the UE to perform a specific feedback time so that the user equipment feeds back corresponding acknowledgment or non-acknowledgment information to the base station side according to the specific feedback time.

[0034] In t...

Embodiment 2

[0134] An embodiment of the present invention provides an information feedback method, which is applied to user equipment, such as figure 2 As shown, the method includes:

[0135] Step 201: Receive the downlink control information sent by the base station, and determine the feedback information transmission parameter; wherein, the feedback information transmission parameter is used to at least represent the time domain position parameter of the feedback information for the downlink information;

[0136] Step 202: Based at least on the time domain position parameter included in the feedback information transmission parameter, determine the position of the uplink resource for the downlink information, and send the feedback information for the downlink information to the base station at the uplink resource.

[0137] First, the receiving the downlink control information sent by the base station may include:

[0138] Listening to at least one of the following downlink control inf...

Embodiment 3

[0177] An embodiment of the present invention provides a base station, such as Figure 4 As shown, the base station includes:

[0178] The processing unit 41 is configured to determine a feedback information transmission parameter of at least one user equipment; wherein the feedback information transmission parameter is used to at least represent a time domain position parameter of feedback information for downlink information;

[0179] The information sending unit 42 is configured to generate downlink control information for the at least one user equipment based on the feedback information transmission parameter, and send the downlink control information to the at least one user equipment.

[0180] The specific functions of the processing unit and the information sending unit provided in this embodiment correspond to the method in the first embodiment.

[0181] Wherein, the time domain position parameter of the feedback information may represent that the base station is used...

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Abstract

The invention discloses an information feedback method, a base station and user equipment. The method comprises the steps of determining a feedback information transmission parameter of at least one piece of user equipment, wherein the feedback information transmission parameter is used for at least representing a time domain position parameter of feedback information aiming at downlink information; and generating downlink control information aiming at the at least one piece of user equipment based on the feedback information transmission parameter, and sending the downlink control informationto the at least one piece of user equipment.

Description

technical field [0001] The present invention relates to signal transmission technology in the communication field, in particular to an information feedback method, base station and user equipment. Background technique [0002] The traditional LTE system works on the authorized spectrum exclusively owned by telecom operators. In order to reduce signaling indication overhead, in the traditional LTE system, a fixed DL ACK / NACK feedback timing relationship is defined, that is, there is a fixed timing relationship between PDSCH transmission and corresponding ACK / NACK feedback. Whether it is an FDD system or a TDD system, there is a fixed timing relationship between PDSCH transmission and corresponding ACK / NACK feedback. With the surge of data traffic in the mobile Internet, the use of LTE technology in unlicensed frequency bands has become a development trend. [0003] The unlicensed frequency band is open to all radio access technologies (Radio Access Technologies, RAT) and al...

Claims

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Application Information

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IPC IPC(8): H04W72/04H04L5/00
CPCH04L5/0055H04W72/23
Inventor 柯颋侯雪颖沈晓冬刘建军
Owner CHINA MOBILE COMM LTD RES INST
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