Information indication method, terminal equipment and network equipment

A technology for terminal equipment and information indication, applied in the field of communication, can solve the problems of increasing the complexity of information demodulation at the receiving end and the low efficiency of the receiving end in obtaining information.

Active Publication Date: 2019-10-25
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Embodiments of the present invention provide an information indication method, terminal equipment, and network equipment to solve the problem of increased information demodulation at the receiving end when t

Method used

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  • Information indication method, terminal equipment and network equipment
  • Information indication method, terminal equipment and network equipment
  • Information indication method, terminal equipment and network equipment

Examples

Experimental program
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Effect test

Example Embodiment

[0055] In the existing SL, when sending a physical channel to the receiving end, the sender can usually select a configuration from a variety of SCS, CP, BWP, and DMRS configurations to send. For example, the sender can use 15KHz SCS to send To send information to the receiving end, 30KHz SCS can also be used to send information to the receiving end, low-density DMRS can be used to send information to the receiving end, or high-density DMRS can be used to send information to the receiving end.

[0056] After receiving the information from the sending end, the receiving end can demodulate the received information to obtain the information sent by the receiving end. However, since the SCS, CP, BWP, and DMRS used by the transmitting end are not fixed, the receiving end usually demodulates the received information through blind detection. For example, the receiving end can use 15KHz SCS to demodulate the received information. If the demodulation fails, it can continue to use 30KHz SC...

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Abstract

The invention discloses an information indication method, terminal equipment and network equipment. The method comprises: determining a transmission characteristic parameter, the transmission characteristic parameter being used for sending a physical channel on a sidelink SL, the transmission characteristic parameter comprising at least one of a subcarrier spacing SCS, a cyclic prefix CP, a partial bandwidth BWP, and a configuration parameter of a demodulation reference signal DMRS; and sending transmission feature information, wherein the transmission feature information is used for indicating the transmission feature parameters. Thus, the first terminal equipment and the second terminal equipment can obtain at least one of configuration parameters of SCS, CP, BWP and DMRS. The first terminal sends the physical channel according to the parameter, and the second terminal receives the physical channel according to the parameter, so that the blind detection frequency of the receiving endis reduced, the complexity and time delay of information demodulation of the receiving end can be reduced, and the information acquisition efficiency of the receiving end is improved.

Description

technical field [0001] The present invention relates to the communication field, in particular to an information indicating method, terminal equipment and network equipment. Background technique [0002] In the sidelink (SL, sidelink), the transmitter uses a certain subcarrier spacing (SCS, subcarrierspacing), a cyclic prefix (CP, cycle prefix), and a certain configuration of the demodulation reference signal (DMRS, demodulation reference signal) in the Partial bandwidth (BWP, bandwidth part) transmits the physical channel, and after receiving the information from the transmitting end, the receiving end can demodulate the received information to obtain the information sent by the transmitting end. [0003] When the receiving end demodulates the information sent by the sending end, the receiving end may use a blind detection method to try to use different SCS, CP and BWP to receive the information from the sending end. However, in practical applications, blind detection at t...

Claims

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Application Information

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IPC IPC(8): H04L1/00H04L5/00
CPCH04L1/0033H04L1/0038H04L5/0053H04L5/0048H04L1/00H04W56/001H04L5/0044H04L5/0051H04L5/001H04L5/0091H04L27/26025H04L5/0092H04L5/0094H04L5/10H04L27/2607H04W72/0446H04W72/0453H04W72/1263H04W92/18
Inventor 彭淑燕
Owner VIVO MOBILE COMM CO LTD
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