Method and device for transmitting control information

Abstract

The application provides a method for transmitting control information, which is executed in a communication system which uses at least two partitioning modes to partition time-frequency resources fortransmitting the control information. A plurality of time-frequency resource blocks partitioned in at least two partitioning modes are of a nested structure. The method comprises the steps of: from aplurality of time-frequency resource blocks, determining a first time-frequency resource block for sending first control information; partitioning the first control information into m information fragments; according to the m information fragments, generating m pieces of to-be-sent information, wherein each to-be-sent information comprises the corresponding information fragment, to-be-sent information i comprises an information fragment i and a check sequence i, the check sequence i is generated according to the information fragment i, and i is an element of a set [1,m]; carrying out polar code encoding on the m to-be-sent information to generate a symbol sequence; and by the first time-frequency resource block, sending the symbol sequence. Resource cost of transmitting the control information can be reduced, and blink detection calculation complexity and processing delay are reduced.

Description

technical field [0001] The present application relates to the field of communications, and more particularly, to methods and devices for transmitting control information. Background technique [0002] At present, there is a known technology that can divide the time-frequency resources used to transmit downlink control information in a variety of ways. The time-frequency resources have been divided into multiple time-frequency resource blocks, and any two time-frequency resource blocks The number of time-frequency resource units included varies. Moreover, in the prior art, the positions of various time-frequency resource blocks in the time-frequency resource are different, that is, different types of time-frequency resource blocks do not have a nested structure. [0003] When sending downlink control information, the network device may select one time-frequency resource block from the above-mentioned multiple time-frequency resource blocks, and send downlink control informat...

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Problems solved by technology

[0005] With the development of communication technology, the number of terminal devices has increased massively. How to improve the utilization efficiency of limited time-frequency resources has become an urgent problem to be solved in the industry. The above-mentioned prior art does not have a nested structure due to different types of time-frequency resource blocks. , the communication system needs to allocate more time-frequency resources, which increases the resource overhead of the transmission of downlink control information

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