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mac CE, HARQ process mode switching method, switching MAC CE sending and receiving method

A technology of mode switching and receiving method, applied in the field of switching MACCE transmission and reception

Active Publication Date: 2021-09-14
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] To sum up, the problem existing in the existing technology is: in the face of the preemption scenario, the HARQ stop and wait process needs to be flexibly changed in real time to realize the correct sending and receiving of service data packets
[0006] Then this question involves the modification of the HARQ mode scheme, the control of the HARQ process, the transmission-feedback mechanism of the air interface, etc., which will bring about the modification of the signaling, control and data transmission and reception processes

Method used

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Embodiment Construction

[0046] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0047] The present invention proposes a MAC CE solution, through which the attributes of the HARQ process (HARQ stop and wait process) used are directly configured, that is, the synchronous mode or the asynchronous mode. When it is necessary to change the mode of the HARQ stop and wait process in real time, it is controlled through the MAC CE. The mode of the HARQ stop and wait process includes a synchronous mode and an asynchronous mode.

[0048] The application principle of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0049] Such as figure 1As shown, the metho...

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Abstract

The invention belongs to the technical field of wireless communication, and discloses a MAC CE, a HARQ process mode switching method, and a method for switching MAC CE sending and receiving. There are two types of uplink MAC CE on the network side; DL MAC CE must include at least: the process information that needs to modify the mode this time; UL MAC CE must include at least: the process information that needs to modify the mode this time; different definition methods, process information The specific internals are different. The invention reduces the use of the PDCCH, reduces the conflict of the PDCCH, and reduces the complexity of flow control.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a MAC CE, a HARQ process mode switching method, and a method for switching MAC CE sending and receiving. Background technique [0002] At present, the closest existing technology: the HARQ Process mode defined by the current protocol is fixed, and the current 5G protocol stipulates that all Process modes are "asynchronous mode"! Facing the flexible air interface requirements in 5G, for example, URLLC services can trigger resources scheduled by the MAC to be directly inserted into eMBB resources. This is called URLLC preemption, and the 5G system is to realize this kind of real-time service sending and receiving. . Then, each stop-and-wait process (HARQ Process) of the HARQ for sending and receiving data packets over the air interface needs to be flexibly controlled according to the requirements of service data transmission. [0003] In the face of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/02H04L1/00H04L1/18H04L5/00
CPCH04L1/0006H04L1/1812H04L5/0046H04W28/0268
Inventor 马建峰孙军帅沈玉龙
Owner XIDIAN UNIV