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Individual calling method and terminal in DMO communication

A terminal and channel technology, used in wireless communication, wireless communication services, error prevention/detection using return channels, etc. problem, to achieve the effect of improving quality

Active Publication Date: 2017-03-29
HYTERA COMM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The inventors of the present invention found that in the standard 3GPP R12 D2D communication technology protocol, two communication UEs cannot know whether the transmitted data has been successfully received, and cannot judge whether retransmission is required, so it will reduce DMO communication. The quality of data transmission is not good enough to support single call

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  • Individual calling method and terminal in DMO communication
  • Individual calling method and terminal in DMO communication
  • Individual calling method and terminal in DMO communication

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Embodiment Construction

[0057] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0058] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present invention and the above drawings are used to distinguish similar objects and not necessarily Describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate cir...

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Abstract

The embodiment of the invention discloses an individual calling method and terminal in DMO communication, used for improving the data transmission quality of individual calling in the DMO communication. The method disclosed by the embodiment of the invention comprises the following steps: called UE establishes DMO communication with calling UE, the called UE receives a first data packet sent by the calling UE, the called UE sends a response message to the calling UE thereafter, wherein the response message comprises an ACK or a NACK message, the ACK message indicates that the first data packet received by the called UE is errorless and indicates the called UE to send a second data packet, and the NACK message indicates that the first data packet received by the called UE is incorrect and indicates the called UE to retransmit the first data packet. Therefore, by means of the ACK or NACK mechanism, the two pieces of UE performing the DMO communication can know whether the transmitted data are correctly received, if the transmitted data are not correctly received, the unsuccessfully transmitted message is retransmitted, and thus the data transmission quality of individual calling in the DMO communication is improved.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a single call method and terminal in DMO communication. Background technique [0002] In the trunking service, a direct mode operation (Direct Mode Operation, DMO) technology refers to a technology for direct communication between terminals without cellular network coverage. [0003] The current Device-to-Device (D2D) standard of the 3rd Generation Partnership Project (3GPP) stipulates that the time-domain resources occupied by each user equipment (UserEquipment, UE) transmission of D2D can only be passed through the upper layer Preconfigured or randomly selected by yourself. Because the broadband trunking DMO technology is not yet mature, there are still technical solutions in this mode that are still in the research stage. [0004] The inventors of the present invention found that in the standard 3GPP R12 D2D communication technology protocol, two communication UEs canno...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/00H04L1/18
CPCH04L1/1809H04W4/06H04W84/08
Inventor 鲁志兵胡军
Owner HYTERA COMM CORP