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RLC layer AM mode transmission method and device

An AM mode and transmission method technology, applied in the field of communication, can solve the problems of low transmission rate, poor retransmission efficiency, and only one bearer, etc., to achieve the effect of increasing transmission rate and reducing ARQ retransmission delay

Active Publication Date: 2021-03-19
POTEVIO INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, LTE-G simplifies the design and can only carry one MAC SDU
In this way, while the MAC structure of the LTE-G protocol saves the overhead of the MAC frame header, there is a limitation that one MAC scheduling can only carry one RLC PDU
Therefore, in the RLC AM mode, the data PDU and the control PDU cannot be transmitted at the same time, which leads to the problems of low transmission rate and poor retransmission efficiency in the RLC AM mode.

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  • RLC layer AM mode transmission method and device
  • RLC layer AM mode transmission method and device
  • RLC layer AM mode transmission method and device

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Embodiment Construction

[0030] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and examples.

[0031] This application considers that since the MAC layer of the LTE-G protocol cannot multiplex multiple MAC SDUs, RLC data packets and control packets cannot be transmitted simultaneously, resulting in low transmission efficiency and reduced reliability in RLC AM mode. In order to solve this problem under the existing protocol framework, the application adds a kind of MAC Control Element (MAC Control Element, MAC CE) in the MAC layer, and this MACCE is used for carrying the control message (status report) of RLC, to realize data Simultaneous interpretation of messages and control messages. In this way, at the same time as the data PDU transmission, the control protocol data unit (PDU) transmission can be carried out incidentally, and the RLC tr...

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Abstract

The invention discloses an RLC layer AM mode transmission method and device. The method comprises the steps that a base station determines a transmission mode of a downlink RLC control message according to a mode that a terminal reports an uplink radio link control RLC control message, wherein when the terminal uses a media access control layer control cell MAC CE to bear an uplink RLC control message, the sending mode is to use the MAC CE to bear a downlink RLC control message; the base station sends a downlink RLC control message to the terminal by adopting the determined sending mode. By applying the technical scheme disclosed by the invention, the transmission rate can be effectively improved, and the ARQ retransmission delay is reduced.

Description

technical field [0001] The present application relates to the technical field of communication, and in particular to a radio link control (RLC) layer acknowledgment (AM) mode transmission method and device. Background technique [0002] Wireless private network equipment in the power industry is widely used in data collection and power equipment control scenarios. Since the wireless private network in the power industry has the characteristics of small available spectrum bandwidth and high data reliability requirements, it puts forward higher requirements for data transmission schemes and retransmission control. [0003] In the process of realizing the present invention, the inventors found that the LTE-G protocol currently designed for power wireless Internet of Things services has the problems of low transmission rate and poor retransmission efficiency in the AM mode of the RLC layer (abbreviated as RLC AM mode in the text). The specific reasons are analyzed as follows: ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/16H04L1/18
CPCH04L1/1664H04L1/18H04L1/1812H04L1/1829H04L1/1867
Inventor 张凯
Owner POTEVIO INFORMATION TECH