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Uplink scheduling method and device

A scheduling method and retransmission technology, applied in the field of communication networks, can solve the problems of long data transmission delay, rate fluctuation, inaccurate distinction, etc., to improve reliability and anti-interference ability, reduce delay, and meet development requirements. Effect

Inactive Publication Date: 2019-11-12
POTEVIO INFORMATION TECH
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Problems solved by technology

The current algorithm does not make full use of the difference between non-adaptive retransmission and adaptive retransmission processing, and does not accurately distinguish the difference between control and data channel processing when encountering UE measurement, resulting in poor performance when inter-frequency handover occurs near the measurement interval. The data transmission delay becomes longer, which makes the rate fluctuate during the switching process

Method used

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  • Uplink scheduling method and device
  • Uplink scheduling method and device

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Embodiment Construction

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments 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 creative efforts fall within the protection scope of the present invention.

[0038] figure 2 A schematic flowchart of an uplink scheduling method provided by an embodiment of the present invention, as shown in figure 2 As shown, the method includes:

[0039] S101. Acquire a first feedback time point of received data, where the first feedback time point of received data is the time when user equipment uploads data recei...

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Abstract

The invention provides an uplink scheduling method and a device. The method comprises the steps: obtaining a first feedback time point when data is received, the first feedback time point when the data is received being the time when user equipment uploads the data received by a base station; judging whether the feedback time point of the received data is within the measurement interval of the user equipment or not; if yes, a first retransmission user queue is generated, and data transmission is conducted in a self-adaptive retransmission mode. According to the invention, the end-to-end time delay can be reduced, and the reliability and the anti-interference capability of pilot frequency switching data transmission are improved.

Description

technical field [0001] The present invention relates to the technical field of communication networks, in particular to an uplink scheduling method and device. Background technique [0002] LTE (Long Term Evolution, long-term evolution) train-to-ground communication system is characterized by high-speed movement of terminals and frequent switching between networks. The CBTC system (Communication Based Train Control System, an automatic train control system based on wireless communication) requires Within 60ms, that is, the vehicle-to-ground communication process has higher requirements for uplink service delay and reliability. [0003] In inter-frequency networking, the terminal periodically synchronizes to the specified inter-frequency to perform inter-frequency adjacent cell measurement according to the measurement interval (Measurment Gap) configured by the upper layer. During this time, the user equipment (User Equipment, UE) no longer sends and receives data. The base ...

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Application Information

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IPC IPC(8): H04W72/12H04L1/18
CPCH04L1/1812H04W72/1268
Inventor 董敏张凯魏燚潍
Owner POTEVIO INFORMATION TECH
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