Information transmitting method, information receiving method and corresponding devices

Abstract

The embodiments of the present invention provide an information transmitting method, an information receiving method and corresponding devices. According to the information transmitting method and theinformation receiving method, when a network device sends a schedule to the control channel and data channel of a target terminal in the same transmission time unit, reference signals are transmittedon a preset frequency resource on the subsequent modulation symbol of a modulation symbol where the control channel is located, and the data channel is transmitted on a frequency resource allocated to the target terminal, so that the target terminal can receive the reference signals and the data channel at corresponding locations, or the network device generates indication information used for indicating that the data of the target terminal and reference signals used for demodulating the data are transmitted in the CORESET of the control channel, and sends the indication information to the target terminal through the control channel, so that the target terminal can receive the indication information and receive the reference signals for demodulating the data according to the indication information. Therefore, the reference signals sent separately on the data channel can be saved, a resource utilization rate can be improved, and the transmission reliability of URLLC (ultra reliable andlow latency communication) services can be improved.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a method and device for sending and receiving information. Background technique [0002] In the fifth generation (5G) mobile communication system, ultra reliable and low latency communications (URLLC) is an important application scenario. URLLC services have ultra-high reliability and low latency Time, small amount of transmitted data, and burst characteristics. [0003] In the 5G mobile communication system, a control resource set (CORESET) is introduced. A CORESET corresponds to a block of time-frequency resources. A CORESET is aimed at a group of users. The CORESET will send the downlink control channel of the group of users. A user can have multiple CORESETs, and each user has a search space (search space) on a CORESET. The resources of this search space are less than or equal to the resources of the CORESET. The user performs blind detection on the allo...

AI Technical Summary

Problems solved by technology

[0005] This application provides an information sending and receiving method and device, which are used to solve the problem of separate transmission of the control channel and the data channel in the existing URLLC service transmission process, resulting in large overhead of the reference signal and low reliability of URLLC service transmission. question

Images