Method for transmitting control information, terminal device and network device

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

Active Publication Date: 2019-01-04
HUAWEI TECH CO LTD
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  • Abstract
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  • 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 invention provides a method for transmitting control information, a terminal device and a network device. The method includes the following steps that: a terminal device determines the bit lengthof downlink control information (DCI) according to the location of a target first time unit in a second time unit, wherein the DCI contains time-domain resource location information which is used to indicates at least one piece of information selected from the time-domain start location information of data transmission of DCI scheduling and the time-domain length information of a third time unit,the DCI is carried on the target first time unit, and the time-domain length of the third time unit is less than or equal to the time-domain length of the second time unit; and the terminal device receives DCI from a network device. With the method for transmitting the control information provided by the embodiments of the present invention adopted, the reduction of the bit redundancy of the downlink control information (DCI) can be facilitated; a condition that the terminal device blindly detects downlink control information of different bit lengths can be avoided; and the complexity of a receiver can be reduced.

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 Applications(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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