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Method for transmitting control information, terminal device and network device

A technology for terminal equipment and network equipment, applied in the field of communication, can solve the problems of redundant downlink control information bit length, reduce the transmission efficiency of control information in the air interface, etc., and achieve the effect of reducing complexity and avoiding blind detection.

Active Publication Date: 2020-07-24
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the method of "control information indicating the position of the data symbol in the mini-slot" in the prior art is likely to cause redundancy in the bit length of the downlink control information, which reduces the transmission efficiency of the control information on the air interface

Method used

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  • Method for transmitting control information, terminal device and network device
  • Method for transmitting control information, terminal device and network device
  • Method for transmitting control information, terminal device and network device

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Embodiment Construction

[0129] The technical solution in this application will be described below with reference to the accompanying drawings.

[0130] It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, for example: Long Term Evolution (Long Term Evolution, LTE) system, LTE Frequency Division Duplex (Frequency Division Duplex, FDD) system, LTE Time Division Duplex ( Time Division Duplex, TDD) and other current communication systems, and especially applied to the future 5G New Radio (New Radio, NR) system or 5G system or communication based on Orthogonal Frequency Division Multiplexing (OFDM) technology system.

[0131] figure 1 It is a schematic structural diagram of a mobile communication system applied by an embodiment of the present application. Such as figure 1 As shown, the mobile communication system includes a core network device 110, a radio access network device 120 and at least one terminal d...

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Abstract

The present application provides a method for transmitting control information, a terminal device and a network device. The method includes: the terminal device determines the bit length of the downlink control information DCI according to the position of the target first time unit in the second time unit, wherein the DCI includes time-domain resource location information, and the time-domain resource location information is used Indicating at least one of the time domain start position information of the data transmission scheduled by the DCI and the time domain length information of the third time unit, wherein the DCI is carried on the target first time unit, the The time domain length of the third time unit is less than or equal to the time domain length of the second time unit; the terminal device receives the DCI from the network device. The method for transmitting control information in the embodiment of the present application helps to reduce bit redundancy of downlink control information DCI, prevents terminal equipment from performing blind detection on downlink control information with different bit lengths, and reduces the complexity of the receiver.

Description

technical field [0001] The present application relates to the communication field, and more specifically, to a method for transmitting control information, a terminal device and a network device. Background technique [0002] In order to cope with the explosive growth of mobile data traffic in the future, massive mobile communication device connections, and various new services and application scenarios emerging, the fifth generation (5G) mobile communication system has emerged as the times require. The International Telecommunication Union (ITU) has defined three major application scenarios for 5G and future mobile communication systems: enhanced mobile broadband (eMBB), ultra reliable and low latency communication (ultra reliable and low latency) communications, URLLC) and massive machine type communications (mMTC). The URLLC service has extremely high requirements on delay. When reliability is not considered, the transmission delay is required to be within 0.5 millisecon...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04W72/04
CPCH04L5/0048H04W72/23H04W72/04H04L5/0053H04L5/0092H04L5/0044H04W48/12H04L5/0007
Inventor 焦淑蓉彭金磷张鹏
Owner HUAWEI TECH CO LTD
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