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A method and device used in a wireless communication terminal and a base station

A wireless communication and wireless signal technology, applied in the field of terminals, base stations and devices used for wireless communication, can solve the problem of increasing the number of blind detections, and achieve the effect of reducing the complexity of blind detection

Active Publication Date: 2022-03-01
SHANGHAI LANGBO COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method of receiving the control channel will cause the number of blind detection times on the UE side to increase when the number of possible bit candidates corresponding to the DCI increases.

Method used

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  • A method and device used in a wireless communication terminal and a base station
  • A method and device used in a wireless communication terminal and a base station
  • A method and device used in a wireless communication terminal and a base station

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0199] Embodiment 1 illustrates the flow chart of wireless transmission, as attached figure 1 shown. attached figure 1 In , the base station N1 is the serving cell maintenance base station of the UE U2. attached figure 1 , the steps in box F1 are optional.

[0200] For N1, send downlink information in step S101; send the first wireless signal in step S11.

[0201] For U2, receive downlink information in step S201; receive a first wireless signal in step S21.

[0202] In Embodiment 1, the bits in the first bit block are used by the N1 for the input of the channel coding in this application. Part or all of the symbols in the first symbol block are used by the N1 to generate the first wireless signal, and the first symbol block is generated by performing modulation mapping on the output of the channel coding. The number of bits in the first bit block is Z, where Z is one of K candidate values, the candidate value is a positive integer, and K is a positive integer greater th...

Embodiment 2

[0289]Embodiment 2 illustrates a schematic diagram of the relationship between the number of bits in the first bit block and the constellation pattern corresponding to the symbols in the first symbol block, as shown in the attached figure 2 shown.

[0290] In Embodiment 2, the first symbol block includes Q symbol groups, the Q is a positive integer greater than 1, and the constellation patterns corresponding to the symbols in each symbol group are the same, and the Q symbol groups The constellation patterns corresponding to any two different symbol groups in the symbol group are different, and the symbol group includes a positive integer number of symbols. The number of bits in the first bit block is Z, where Z is one of K candidate values, the candidate value is a positive integer, and K is a positive integer greater than 1. The K candidate values ​​are divided into P candidate value groups, each of the candidate value groups includes a positive integer number of the candid...

Embodiment 3

[0311] Embodiment 3 illustrates a schematic diagram of the relationship between the first bit block and the first wireless signal, as shown in the attached image 3 shown.

[0312] In Embodiment 3, the bits in the first bit block are used for the input of the channel coding in this application. Some or all symbols in a first symbol block are used to generate the first radio signal, and the first symbol block is generated by performing modulation mapping on the output of the channel coding. The number of bits in the first bit block is Z, where Z is one of K candidate values, the candidate value is a positive integer, and K is a positive integer greater than 1. The constellation pattern corresponding to at least one symbol in the first symbol block is related to the Z. Any two of the candidate values ​​among the K candidate values ​​are not equal. The first block of symbols includes a positive integer number of symbols. The first bit block includes a first bit sub-block and ...

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Abstract

The present invention discloses a method and device used in a terminal and a base station for wireless communication. The UE first performs channel coding; then transmits the first radio signal. Wherein, the bits in the first bit block are used for the input of the channel coding. Some or all of the symbols in the first block of symbols are used to generate the first wireless signal, the first block of symbols generated by performing modulation mapping on the output of the channel encoding. The number of bits in the first bit block is Z, where Z is one of K candidate values, the candidate value is a positive integer, and K is a positive integer greater than 1. The constellation pattern corresponding to at least one symbol in the first symbol block is related to the Z. Any two of the K candidate values ​​are not equal. The first symbol block includes a positive integer number of symbols. The method in the present invention can reduce the blind detection complexity of the control channel by the UE.

Description

technical field [0001] The present application relates to a wireless signal transmission method and device in a wireless communication system, especially a wireless signal transmission method and device in a wireless communication system supporting channel coding. Background technique [0002] Different DCI (Downlink Control Information, downlink control information) formats in the traditional LTE (Long Term Evolution, long-term evolution) system correspond to different numbers of coded bits, and UE (User Equipment, user equipment) corresponds to all possible DCIs according to the current transmission mode The format performs blind detection on the control channel carrying DCI. This method of receiving the control channel will cause the number of blind detection times on the UE side to increase when the number of possible bit candidates corresponding to the DCI increases. Contents of the invention [0003] The inventors have found through research that if the constellatio...

Claims

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Application Information

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IPC IPC(8): H04W72/12
CPCH04W72/12
Inventor 张晓博
Owner SHANGHAI LANGBO COMM TECH CO LTD
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