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Method and system for lowering long term evolution (LTE) uplink data transmission delay

A transmission delay and data transmission technology, applied in electrical components, wireless communication, etc., can solve the problems of large data transmission delay and affect the real-time performance of data transmission, so as to reduce transmission delay, improve wireless transmission efficiency, reduce time Delayed effect

Active Publication Date: 2015-12-23
CHINA ELECTRONICS TECH GRP NO 7 RES INST
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Problems solved by technology

[0014] To sum up, in the synchronous satellite communication system, the uplink data transmission delay caused by signaling interaction is relatively large, which seriously affects the real-time performance of data transmission.

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  • Method and system for lowering long term evolution (LTE) uplink data transmission delay
  • Method and system for lowering long term evolution (LTE) uplink data transmission delay
  • Method and system for lowering long term evolution (LTE) uplink data transmission delay

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Embodiment Construction

[0035] The content of the present invention will be further described in detail below in conjunction with preferred embodiments and accompanying drawings.

[0036] Such as Figure 4 As shown, this embodiment provides a method for reducing LTE uplink data transmission delay, including the following steps:

[0037] S10 base station judges LTE uplink data type;

[0038] The S20 base station sets the corresponding uplink data transmission resource pre-allocation amount according to the LTE uplink data type;

[0039] S30 Send an uplink resource scheduling grant (UL Grant) corresponding to the LTE uplink data to the terminal according to the pre-allocated amount of uplink data transmission resources.

[0040] In this embodiment, when the base station performs resource prediction and scheduling for LTE uplink data, it needs to judge the type of LTE uplink data, set different pre-allocated amounts of uplink data transmission resources for different LTE uplink data types, and then T...

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Abstract

The invention relates to a method and a system for lowering long term evolution (LTE) uplink data transmission delay. The method comprises following steps that a base state determines an LTE uplink data type; and the base station sets corresponding uplink data transmission resource predistribution amount according to the LTE uplink data type, and sends, according to the uplink data transmission resource predistribution amount, an uplink resource dispatching authority corresponding to the LTE uplink data to a terminal. Different uplink data transmission resource predistribution amounts are directly set according to different types of LTE uplink data, and UL Grant is sent to the terminal according to the uplink data transmission resource predistribution amount. Due to the uplink self-adaption resource predictive scheduling method, delay caused by an SR request and a BSR report is shortened, the transmission delay of LTE uplink data is shortened, and the wireless transmission efficiency under the long delay channel condition is improved.

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular to a method and system for reducing LTE uplink data transmission delay. Background technique [0002] LTE (Long Term Evolution, long-term evolution) is currently being widely used in the field of wireless transmission with the advantages of high speed and low delay. In the field of satellite communication, its most notable feature is the extremely long round-trip time. For example, under the geostationary satellite system, its radio wave The round-trip delay RTT (RoundTripTime) of air propagation reaches more than 540ms. Therefore, applying LTE to the field of satellite communication can effectively increase the data transmission rate, but the transmission delay, especially the uplink transmission delay, cannot be effectively reduced. [0003] The data transmission delay is composed of radio wave air transmission delay, scheduling delay, and device signal processing dela...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/12
CPCH04W72/1268
Inventor 任后文温文坤闵铁锐
Owner CHINA ELECTRONICS TECH GRP NO 7 RES INST
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