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An information sending and receiving method, terminal and control node

A technology for sending information and controlling nodes, which is applied in the field of communication and can solve problems such as inability to guarantee normal communication

Active Publication Date: 2021-10-29
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • An information sending and receiving method, terminal and control node
  • An information sending and receiving method, terminal and control node
  • An information sending and 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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PUM

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Abstract

The invention provides an information sending and receiving method, a terminal and a control node, and relates to the technical field of communication. The information sending method is applied to the sending end, and includes: when the sending end cannot obtain GNSS positioning information, sending the first information to the receiving end; wherein, the first information is used to assist the receiving end in judging whether Perform hybrid automatic repeat request HARQ feedback; wherein, the first information includes at least one of the following: reference signal received power RSRP threshold indication, geographical area identifier of the sending end, communication range indication and HARQ unavailable indication. The above scheme can ensure that when the sending end cannot obtain GNSS positioning information, the receiving end cannot obtain GNSS positioning information, or the receiving end cannot obtain GNSS positioning information, normal HARQ feedback can also be performed between the transmitting and receiving ends, so as to ensure smooth communication. Affected.

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 Patents(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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