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Control information transmission method and apparatus

專利號
US11197281B2
公開日期
2021-12-07
申請人
HUAWEI TECHNOLOGIES CO., LTD（CN Shenzhen）
發(fā)明人
Jian Wang; Jun Wang; Rong Li; Huazi Zhang; Chaolong Zhang
IPC分類
H04L1/00; H04W72/04
技術領域
dci,codeword,feedback,equipment,in,user,pieces,coding,polar,crc
地域： Shenzhen

摘要

Embodiments of the present invention provide a control information transmission method and apparatus. The control information transmission method includes: determining, by a network device, N pieces of to-be-jointly-coded downlink control information DCI, where N is an integer greater than or equal to 2; coding, by the network device, the N pieces of DCI in a polar coding manner, to obtain one codeword; and mapping, by the network device, the codeword to a time-frequency resource of a downlink control channel for sending. According to the embodiments of the present invention, not only a relatively high coding gain can be obtained, but a relatively low average processing latency on a decoder side can also be obtained.

說明書

In this embodiment of the present invention, when transmitting DCI, the network device determines the N pieces of to-be-jointly-coded DCI, and jointly codes the N pieces of DCI in the polar coding manner, to obtain one codeword. In this joint coding manner, a relatively high channel coding gain can be obtained, and DCI transmission reliability can be improved. In addition, because the polar coding manner is used, the user equipment can quickly obtain the DCI of the user equipment through sequential decoding, and perform a corresponding operation. Therefore, a relatively low average processing latency of the user equipment is obtained.

FIG. 8 shows a method for transmitting feedback information in a 5G network through air interface information interaction between a first device and a second device according to an embodiment of the present invention. If the first device is a network device, the second device is user equipment, and if the first device is user equipment, the second device is a network device. As shown in FIG. 8, the method includes the following steps.

S20: The first device determines Q pieces of feedback information, where the Q pieces of feedback information are feedbacks for received data carried by P data transmission units, Q is an integer greater than or equal to 2, P is greater than or equal to Q, and P is an integer.

S21: The first device jointly codes the Q pieces of feedback information in a polar coding manner, to obtain one codeword.

S22: The first device maps the codeword to a corresponding time-frequency resource for sending.

權利要求

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