Hybrid automatic repeat request information transmission method and device

A hybrid automatic retransmission and information request technology, applied in transmission systems, digital transmission systems, wireless communications, etc., can solve problems such as increased delay, large resource occupation, and large signaling overhead in communication systems, avoiding resource conflicts, The effect of low signaling burden and delay reduction

Inactive Publication Date: 2021-03-05
POTEVIO INFORMATION TECH CO LTD
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Problems solved by technology

[0003] The LTE air interface-based V2X Sidelink technology studied in the two phases of 3GPP communicates on pre-allocated resources, does not support Hybrid Automatic Repeat Request (HARQ) technology, only supports broadcast services, and cannot support multicast services (groupcast) and unicast services (unicast), it cannot support the 4 types of typical application services supported by 3GPP enhanced V2X technology summarized in the protocol TS22.186
However, this method of receiving UE HARQ information feedback will cause a large signaling overhead to the communication system, and also increase the delay, so that the resource occupation is large

Method used

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  • Hybrid automatic repeat request information transmission method and device
  • Hybrid automatic repeat request information transmission method and device
  • Hybrid automatic repeat request information transmission method and device

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Embodiment Construction

[0048] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0049] In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer " and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings...

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Abstract

The embodiment of the invention provides a hybrid automatic repeat request information transmission method and device. A corresponding relationship between time domain resource information and frequency domain resource information of a PSFCH and a PSSCH is established by using a pre-configured PSFCH resource pool, and the PSFCH is indicated through the time frequency resource information of the PSSCH, which is a completely implicit indication mode. According to the invention, resource conflicts can be avoided, signaling burden is low, time delay is reduced, and resources are saved.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, and more specifically, to a method and device for transmitting HARQ information. Background technique [0002] Currently, the 3rd Generation Partnership Project (3GPP) has completed the first phase of V2X research and introduced the LTE-based V2X technology in version 14. Vehicles can exchange their respective status information such as position, speed and direction through Sidelink. 3GPP has completed the second phase of V2X research and introduced some new LTE Sidelink-based functions in Release 15, such as carrier aggregation, high-order modulation, and short TTI-based delay reduction technology. [0003] The LTE air interface-based V2X Sidelink technology studied in the two phases of 3GPP communicates on pre-allocated resources, does not support Hybrid Automatic Repeat Request (HARQ) technology, only supports broadcast services, and cannot support multicast services (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04W72/04
CPCH04L1/1812H04W72/0446
Inventor 李晋声史满姣冯莉钟勤李迪张德贤
Owner POTEVIO INFORMATION TECH CO LTD
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