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Method for reporting channel quality indicator cqi and user equipment

A technology for channel quality indication and user equipment, applied in the field of communication, which can solve the problems of single periodic reporting and high overhead of uplink control channels, etc.

Active Publication Date: 2018-04-27
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Embodiments of the present invention provide a channel quality indicator (CQI) reporting method and user equipment to solve the problem that the CQI uses a single periodic report and the overhead of the uplink control channel is relatively large

Method used

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  • Method for reporting channel quality indicator cqi and user equipment
  • Method for reporting channel quality indicator cqi and user equipment
  • Method for reporting channel quality indicator cqi and user equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0097] In this embodiment, the present invention is described on the UE side, as figure 2 As shown, the embodiment of the present invention provides a CQI reporting method, which is applied to the multi-stream transmission MF mechanism, and the method includes:

[0098] Step 101: The user equipment obtains the serving cell CQI of the serving cell and the auxiliary serving cell CQI of the auxiliary serving cell in multi-stream transmission;

[0099] Step 102: When at least one CQI of the serving cell CQI and the auxiliary serving cell CQI of the serving cell satisfies the trigger reporting condition, the user equipment reports the serving cell CQI and / or the auxiliary serving cell CQI to the base station to reduce uplink control channel overhead.

[0100] Wherein, in the embodiment of the present invention, the serving cell and the auxiliary serving cell have slightly different meanings in different transmission modes, and correspondingly, the serving cell CQI and the auxiliar...

Embodiment 2

[0187] Based on the same design concept, the embodiment of the present invention also provides a user equipment, such as image 3 As shown, the user equipment includes: an obtaining unit 201, configured to obtain the serving cell CQI of the serving cell and the auxiliary serving cell CQI of the auxiliary serving cell in multi-stream transmission, and send the serving cell CQI and the auxiliary serving cell CQI to the reporting unit 202 The reporting unit 202 is configured to receive the CQI of the serving cell and the CQI of the auxiliary serving cell from the obtaining unit 201, and report the serving cell to the base station when at least one CQI of the serving cell CQI and the CQI of the auxiliary serving cell of the serving cell satisfies a triggering reporting condition CQI and / or auxiliary serving cell CQI to reduce uplink control channel overhead.

[0188] In the first embodiment, the reporting unit 202 is specifically configured to: when the first reporting period is r...

Embodiment 3

[0205] This embodiment provides a user equipment, please refer to Figure 4 As shown in , it is a conceptual diagram of a hardware implementation example of a user equipment, and the user equipment includes:

[0206] Processor 301, configured to obtain the serving cell CQI of the serving cell and the auxiliary serving cell CQI of the auxiliary serving cell in multi-stream transmission, and determine whether at least one CQI of the serving cell CQI of the serving cell and the auxiliary serving cell CQI of the auxiliary serving cell satisfies the trigger Reporting conditions; the transmitter 304 is configured to send the serving cell CQI and / or the auxiliary serving cell CQI to the base station when at least one CQI of the serving cell CQI and the auxiliary serving cell CQI of the serving cell meets the triggering reporting condition, so as to reduce the uplink control channel overhead .

[0207] Among them, in Figure 4 In, bus architecture (represented by bus 300), bus 300 m...

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Abstract

Disclosed are a method for reporting channel quality information (CQI), and a user equipment. The method for reporting CQI comprises: a user equipment obtaining serving cell CQI of a serving cell and secondary serving cell CQI of a secondary serving cell in multi-stream transmission; and when the at least one of the serving cell CQI of the serving cell and the secondary serving cell CQI meets a condition of triggering the reporting, the user equipment reporting the serving cell CQI and / or the secondary serving cell CQI, so as to reduce the overhead of a control channel.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method for reporting channel quality indicator (CQI) and user equipment. Background technique [0002] With the rapid development of communication technology, Wideband Code Division Multiple Access (WCDMA), as one of the mainstream technologies of the third generation mobile communication system, has been widely researched and applied worldwide. In the Universal Mobile Telecommunications System (UMTS), in order to improve the downlink throughput rate, a multi-flow transmission mechanism (Multi-Flow, MF), also known as high-speed downlink packet access multi-point transmission (High-speed Downlink Packet Access multipoint transmission, HSDPA-MP-Tx). [0003] The MF mechanism includes a variety of transmission modes. The mainstream transmission modes include Single Frequency-Double Cell SF-DC (Single Frequency-Double Cell) mode, Dual Frequency-3 Cell DF-3C (Double...

Claims

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Application Information

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IPC IPC(8): H04W72/04
CPCH04L1/0026H04L5/0057
Inventor 冯莉郑潇潇
Owner HUAWEI TECH CO LTD
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