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Uplink control information (UCI) transmission and reception methods, terminal and base station

A technology of control information and transmission method, applied in the field of terminal and base station, transmission and reception method of uplink control information, to achieve the effect of improving transmission performance

Active Publication Date: 2012-05-23
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the number of bits occupied by UCI exceeds the maximum number of bits 11 bits supported by the RM (32, O) code, how to transmit UCI becomes an urgent problem to be solved, but there is no corresponding solution in the prior art

Method used

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  • Uplink control information (UCI) transmission and reception methods, terminal and base station
  • Uplink control information (UCI) transmission and reception methods, terminal and base station
  • Uplink control information (UCI) transmission and reception methods, terminal and base station

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] see figure 1 , this embodiment provides a method for transmitting uplink control information. For the terminal side, the following steps are included:

[0047] 101: Calculate the number Q' of modulation symbols occupied by the UCI to be transmitted.

[0048]In this step, if the PUSCH (Physical Uplink Share Channel, physical uplink shared channel) corresponds to a multi-layer (1ayer), the number of modulation symbols occupied by the UCI on each layer of the PUSCH is calculated. The UCI may be ACK (Acknowledgment acknowledgement) / NACK (Negative Acknowledgement acknowledgement), RI (Rank Indicator, rank indication) or other control information, which is not limited in this embodiment.

[0049] The specific calculation formula of Q' is as follows:

[0050]

[0051] Among them, O is the number of bits of UCI original information; is the transmission bandwidth of PUSCH when the same data transmission block is initially transmitted; is the transmission bandwidth of th...

Embodiment 2

[0081] see Figure 4 , this embodiment provides a method for transmitting uplink control information, the method includes:

[0082] 301: Calculate the number Q' of modulation symbols occupied by the uplink control information UCI to be transmitted;

[0083] 302: Divide the information bit sequence of the UCI to be transmitted into two parts;

[0084] 303: Encode each part of the information bit sequence of the UCI to be transmitted by using the Red Miller RM (32, O) code to obtain a 32-long coded bit sequence respectively, and perform rate matching on each 32-long coded bit sequence respectively, Rate-match the first 32-long encoded bit sequence into bits, rate-match the second 32-long encoded bit sequence into bits, where Q m is the modulation order corresponding to the UCI to be transmitted, means round up;

[0085] 304: Map the two rate-matched coded bit sequences to the physical uplink shared channel PUSCH for transmission to the base station.

[0086] see Figu...

Embodiment 3

[0095] see Image 6 , this embodiment provides a method for transmitting uplink control information. For the terminal side, the method includes the following steps:

[0096] 501: Calculate the number Q' of modulation symbols occupied by the UCI to be transmitted.

[0097] This step is the same as step 101, and is briefly described as follows.

[0098] In this step, if the PUSCH corresponds to multiple layers (1ayer), the number of modulation symbols occupied by the UCI on each layer of the PUSCH is calculated. The UCI may be ACK (Acknowledgment Acknowledgement) / NACK (Negative Acknowledgement), RI (Rank Indicator, rank indication), or other control information, which is not limited in this embodiment.

[0099] The specific calculation formula of Q' is as follows:

[0100]

[0101] Among them, O is the number of bits of UCI original information; is the transmission bandwidth of PUSCH when the same data transmission block is initially transmitted; is the transmission ba...

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Abstract

The invention discloses uplink control information (UCI) transmission and reception methods, a terminal and a base station, belonging to the field of wireless communication. The uplink control information transmission method comprises the following steps: calculating the number Q' of modulation symbols occupied by UCI to be transmitted, and dividing the bit sequence of the UCI to be transmitted into two parts; coding each part of bit sequence of the UCI to be transmitted by adopting RM (Reed Muller) (32, O) codes to obtain coded bit sequences of 32 long, and carrying out rate matching to the coded bit sequences to obtain bits shown in the description; mapping the two parts of coded bit sequences subjected to rate matching onto a PUSCH (physical uplink shared channel), and transmitting to the base station. The invention further discloses an UCI reception method which corresponds to the UCI transmission method, the terminal and the base station. According to the scheme, the problem of the transmission of the UCI when the number of the bits occupied by the UCI exceeds the maximum number of bits supported by the RM (32, O) code is solved, each part of bit sequence of the UCI can still obtain enough coding gains under the condition that the product of (Q' / 2)*Qm is more than 24 bits, and the UCI transmission performance is improved.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a method, terminal and base station for transmitting and receiving uplink control information. Background technique [0002] A TDD (Time Division Duplexing, time division duplexing) system transmits and receives information on one frequency channel, but uses different time slots of the same frequency carrier to receive and transmit information. The UCI (Uplink Control Information, uplink control information) corresponding to the data transmission of the downlink subframe, such as the response information, is generally fed back through the uplink subframe [0003] The LTE (Long Term Evolution, Long Term Evolution) TDD system includes a total of 7 time allocation methods for uplink and downlink subframes. The number of downlink subframes in some of the allocation methods is larger than the number of uplink subframes, so there will be multiple downlink subframes. The U...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04W28/22H04W72/12
CPCH04L1/0073H04L1/0067H04W72/0413H04L1/0042H04L1/0057H04W72/21H04L1/0013
Inventor 成艳吕永霞
Owner HUAWEI TECH CO LTD