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Information sending method, information receiving method, terminal and control node

A technology for information transmission and information reception, which is applied in the field of communication and can solve problems such as the inability to guarantee normal communication.

Active Publication Date: 2020-10-27
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The embodiment of the present invention provides a method for sending and receiving information, a terminal and a control node to solve the problem that normal communication cannot be guaranteed if the terminal cannot receive the GNSS signal when the distance between the transceiver and the transceiver is judged based on the division of zones based on GNSS

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  • Information sending method, information receiving method, terminal and control node
  • Information sending method, information receiving method, terminal and control node
  • Information sending method, information receiving method, terminal and control node

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Embodiment Construction

[0042] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0043] When describing the embodiments of the present invention, some concepts used in the following description are explained first.

[0044] In the existing New Radio (New Radio, NR) sidelink (Sidelink), currently, unicast, multicast and broadcast communication are supported. Wherein, the multicast and unicast communication support hybrid automatic repeat request (Hybrid Automatic RepeatreQuest, HARQ). For multicast communication, it is a one-to-many communication mode. When the HARQ function is enabled, any receiving end user in the group feedbacks NACK, which will cause HARQ retransmission. For receiving users with a long distance, it is easy to fail to receive correctly due to factors such as poor channel quality and building occlusion, and th...

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Abstract

The invention provides an information sending method, an information receiving method, a terminal and a control node, and relates to the technical field of communication. The information sending method is applied to a sending end, and comprises the steps of sending first information to a receiving end when the sending end cannot obtain global navigation satellite system GNSS positioning information.The first information is used for assisting the receiving end to judge whether to perform hybrid automatic repeat request (HARQ) feedback or not; andthe first information comprises at least one selected from a reference signal received power RSRP threshold indication, a geographical area identifier of the sending end, a communication range indication and an HARQ unavailable indication. Accordingto the scheme, when the sending end cannot obtain the GNSS positioning information, the receiving end cannot obtain the GNSS positioning information, or the receiving end and the sending end cannot obtain the GNSS positioning information, normal HARQ feedback can be carried out between the receiving end and the sending end, so that communication is not influenced.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to an information sending and receiving method, a terminal and a control node. Background technique [0002] In the existing New Radio (NR) Sidelink (Sidelink, also known as direct communication link) standardization process, it supports the multicast Hybrid Automatic Repeat reQuest (HARQ) function, for the group For broadcast communication, as long as the sending end receives a negative acknowledgment (NACK) feedback from the receiving end, it must retransmit. [0003] Under this premise, there may be some problems. In multicast communication, long-distance users can also receive the data packet, and the decoding success rate of long-distance users will decrease as the distance increases, which will cause these users to feedback NACK. , resulting in some unnecessary retransmissions by the originating user. These unnecessary retransmissions will cause additional interferenc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04W4/021
CPCH04L1/1812H04L1/1861H04L1/1893H04W4/021
Inventor 刘是枭纪子超邬华明刘思綦
Owner VIVO MOBILE COMM CO LTD
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