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A method and device for sending and receiving control information

A technology of control information and transmission control, which is applied in the field of receiving control information and sending control information, and can solve the problem of low reliability of control information transmission

Active Publication Date: 2019-03-26
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] When the transmission of control information needs to be enhanced, since the base station can only map and transmit the control information within one downlink subframe, the reliability of the control information transmission is low

Method used

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  • A method and device for sending and receiving control information
  • A method and device for sending and receiving control information
  • A method and device for sending and receiving control information

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] see figure 1 , an embodiment of the present invention provides a method for sending control information, including:

[0043] Step 101: Determine a pattern from a preset group of patterns as the first pattern, the preset group of patterns includes one or more patterns, and the pattern determines each subframe in a plurality of subframes an aggregation level used for transmitting the control information in the subframe and / or a resource indication determining a resource used for transmitting the control information in each subframe of the plurality of subframes;

[0044] Wherein, the aggregation level indicates the number of control elements or the number of physical resource blocks used for transmitting control information;

[0045]The resource indication of the used resources is an indication of the position of the starting resource in the used resources in all resources that can be provided in a single subframe, and the starting resource in the used resources is in a ...

Embodiment 2

[0051] like figure 2 As shown, the embodiment of the present invention provides a method for sending control information, the method includes:

[0052] Step 201: the base station determines a pattern from a preset group of patterns as the first pattern;

[0053] Wherein, the preset set of patterns includes one or more patterns, and the pattern determines the aggregation level used to transmit control information in each subframe within the plurality of subframes and / or determines the aggregation level used for each subframe within the plurality of subframes. A resource indication of the resources used to transmit control information within the frame.

[0054] Wherein, the aggregation level indicates the number of control elements or the number of physical resource blocks used for transmitting control information;

[0055] The resource indication of the used resources is an indication of the position of the starting resource in the used resources in all resources that can be...

Embodiment 3

[0105] see image 3 , an embodiment of the present invention provides a method for receiving control information, including:

[0106] Step 301: Determine a pattern in a preset group of patterns as the first pattern, the preset group of patterns includes one or more patterns, and the pattern determines each subframe in a plurality of subframes an aggregation level used for transmitting the control information in the subframe and / or a resource indication determining a resource used for transmitting the control information in each subframe of the plurality of subframes;

[0107] Wherein, the aggregation level indicates the number of control elements or the number of physical resource blocks used for transmitting control information;

[0108] The resource indication of the used resources is an indication of the position of the starting resource in the used resources in all resources that can be provided in a single subframe, and the starting resource in the used resources is in a...

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PUM

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Abstract

The invention discloses a method and a device for sending and receiving control information, belonging to the communication field. The method includes: determining a pattern from a preset group of patterns as the first pattern, the preset group of patterns includes one or more patterns, and the pattern determines each The aggregation level used to transmit the control information in the subframes and / or the resource indication that determines the resources used to transmit the control information in each subframe in the plurality of subframes; according to the first pattern, determine in the resources used to transmit the control information in each subframe of the multiple subframes, and map the control information to resources used to transmit the control information in each subframe of the multiple subframes; through a physical channel, Send the mapped control information. The invention can improve the reliability of control information transmission.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for sending and receiving control information. Background technique [0002] The LTE (Long Term Evolution, long-term evolution) project is the evolution of 3G. It improves and enhances the air access technology of 3G and improves the performance of users at the edge of the cell. In the LTE system, the reliability of information transmission is the concern of operators One of the problems where reliable transmission of control information is a prerequisite for normal communication. [0003] The prior art provides a method for transmitting control information, specifically: in an LTE system, control information is transmitted through a PDCCH (Physical Downlink Control Channel, physical downlink control channel). When the base station needs to send control information to the UE, the base station first determines the aggregation level used to transmit the contro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04W72/12
CPCH04L5/0053H04W72/20H04W76/27H04L5/0007H04L5/0094H04W72/23H04W72/542
Inventor 余政夏金环程型清
Owner HUAWEI TECH CO LTD