Direct link control signaling resource mapping method and terminal

A technology of signaling resources and mapping methods, applied in wireless communication, vehicle wireless communication services, transportation and packaging, etc., can solve problems such as inapplicability of resource mapping methods

Active Publication Date: 2021-07-06
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides a direct link control signaling resource mapping method and terminal to solve the pro...

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  • Direct link control signaling resource mapping method and terminal
  • Direct link control signaling resource mapping method and terminal
  • Direct link control signaling resource mapping method and terminal

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Embodiment Construction

[0103] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments. In the following description, specific details, such as specific configurations and components, are provided only to assist in a comprehensive understanding of the embodiments of the present invention. Accordingly, those of ordinary skill in the art should recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

[0104]It should be understood that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic related to the embodiment is included in at least one embodiment of th...

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Abstract

The invention provides a direct link control signaling resource mapping method and a terminal. The method comprises the following steps: determining a candidate RE set which can be used for second-stage direct link control information (2nd-stage SCI) transmission in time-frequency resources transmitted by a physical direct link shared channel (PSSCH); determining the number of REs of a target modulation symbol used for 2nd-stage SCI transmission; and mapping the target modulation symbol to a corresponding candidate RE according to the candidate RE set and the RE number of the target modulation symbol. According to the direct link control signaling resource mapping method provided by the embodiment of the invention, the resource mapping condition when the PSSCH and the 2nd-stage SCI adopt different modulation modes is considered, and the problem that the existing resource mapping mode is not applicable when the modulation modes of the 2nd-stage SCI and the PSSCH are different can be solved.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular to a direct link control signaling resource mapping method and a terminal. Background technique [0002] In the design of NR (New Radio, new air interface) V2X (Vehicle to everything, Internet of Vehicles), in order to flexibly support broadcast, multicast and unicast communication methods, 2-stage SCI is introduced in the design of control signaling , wherein: 1st-stage SCI (1st-stage Sidelink Control Information, first-stage direct link control information) is mainly used to indicate the necessary control information for resource awareness and resource reservation, through PSCCH (Physical Sidelink Control Channel , physical direct link control channel) bearer; the second stage direct link control information 2nd-stage SCI is used to carry the remaining control signaling for data demodulation and HARQ (Hybrid Automatic Repeatrequest, hybrid automatic repeat req...

Claims

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Application Information

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IPC IPC(8): H04W72/12H04L29/08H04W4/40H04W76/14
CPCH04W4/40H04L67/12H04W76/14H04W72/535H04W72/20H04W72/12H04L65/40
Inventor 赵锐任晓涛郑石磊马腾
Owner DATANG MOBILE COMM EQUIP CO LTD
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