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Information feedback method and device

A technology of information feedback and channel feedback, which is applied in the field of communication, can solve problems such as CSI cannot be obtained, and achieve the effect of improving the success rate

Inactive Publication Date: 2015-09-16
深圳市恒程汇文化科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since PUCCH and PUSCH are transmitted at the same time and use different resources respectively, if CSI is concentrated on PUCCH reporting or PUSCH reporting, some resources will be severely interfered or faded, and CSI on this resource will not be available.

Method used

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  • Information feedback method and device
  • Information feedback method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] figure 2 Is the flow chart of this embodiment, such as figure 2 As shown, in this embodiment, the user equipment feeding back information to the base station mainly includes the following steps:

[0036] Step 201: The user equipment judges whether the physical uplink control channel and the physical uplink shared channel are simultaneously transmitted at the current moment. If yes, go to step 202, otherwise go to step 207.

[0037] Step 202: The user equipment determines whether it is necessary to transmit an acknowledgement of correct downlink transmission or an acknowledgement of downlink error transmission on the physical uplink control channel. If yes, go to step 203, otherwise go to step 204.

[0038] Step 203: The user equipment uses the physical uplink control channel to feed back the acknowledgment of correct transmission or the erroneous transmission and uses the physical uplink shared channel to feed back the downlink channel state information. Then go to step 20...

Embodiment 2

[0044] In this embodiment, PUCCH and PUSCH need to be transmitted at the same time, the UE does not need to feed back ACK / NACK, the RI that the UE needs to report is 2, and the CQI of the two streams that need to be reported are 12 and 10, respectively, and there is no PMI. Combine figure 2 In this embodiment, the user equipment feeding back information to the base station mainly includes the following steps:

[0045] Step 201: The user equipment judges whether the physical uplink control channel and the physical uplink shared channel are simultaneously transmitted at the current moment, if yes, go to step 202, otherwise go to step 207, in this embodiment, the judgment result is yes, therefore, go to step 202 ;

[0046] In step 202, the user equipment determines whether it is necessary to feed back the confirmation of correct transmission or the confirmation of incorrect transmission on the physical uplink control channel. If yes, go to step 203, otherwise go to step 204. In this ...

Embodiment 3

[0054] In this embodiment, PUCCH and PUSCH need to be transmitted at the same time, UE does not need to feed back ACK / NACK, no RI, no CQI, and 2 PMIs need to be reported. The two PMIs here are weighted values ​​W1 and W2 as examples.

[0055] Step 201: The user equipment judges whether the physical uplink control channel and the physical uplink shared channel need to be transmitted simultaneously at the current moment, if yes, go to step 201, otherwise go to step 207, in this embodiment the judgment result is yes, go to step 201;

[0056] Step 201: The user equipment judges whether it is necessary to feed back the confirmation of correct downlink transmission or the confirmation of incorrect downlink transmission on the physical uplink control channel. If yes, go to step 203, otherwise go to step 204. In this embodiment, there is no need to feed back ACK or NACK. , Therefore, go to step 204;

[0057] Step 203, this embodiment does not execute;

[0058] Step 204, the user equipment de...

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Abstract

The invention discloses an information feedback method and an information feedback device. The method includes: using user equipment to determine simultaneous transmission of a current physical uplink control channel and a physical uplink shared channel; using the user equipment to determine information required to be fed back to a base station; and using the user equipment to divide the information required to be fed back to the base station into two parts and to feed back the information through the physical uplink control channel and the physical uplink shared channel to the base station respectively. By the aid of the method and the device, different downlink channel state information can be supportingly transmitted on different resources, and transmission success rate of the downlink channel state information can be increased in the environments with poor channel states.

Description

Technical field [0001] The present invention relates to the field of communications, and in particular to an information feedback method and device. Background technique [0002] At present, in the advanced Long Term Evolution Advanced (LTE-Advanced) mobile communication system, how does user equipment use the physical uplink control channel (Physical Uplink Control Channel, referred to as PUCCH) and the physical uplink shared channel (Physical Uplink)? It has become a new technical problem to report downlink channel state information (Channel State Information, CSI for short) during simultaneous transmission of Shared Channel (PUSCH). [0003] According to section 7.2 of TS 36.213 V10.0.0 technical agreement TS 36.213 V10.0.0 of the 3rd Generation Partnership Project (3rd Generation Partnership Project, referred to as 3GPP), user equipment (User Equipment, referred to as UE) will provide the base station (evolved Node B, Referred to as eNB) report channel quality indicator (Chann...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/16H04W28/04
Inventor 谢永斌彭佛才韩翠红张峻峰江溯张睿覃怡春
Owner 深圳市恒程汇文化科技有限公司
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