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Scheduling-free transmission method based on priorities

A scheduling transmission and priority technology, applied in electrical components, wireless communication and other directions, can solve the problem of increasing the delay of scheduling-free transmission, and achieve the effect of reducing the number of retransmissions, ensuring the quality of service, and avoiding interference.

Active Publication Date: 2019-04-12
SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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  • Claims
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AI Technical Summary

Problems solved by technology

When a collision occurs, if the base station cannot successfully decode the data sent by the user, it needs to perform retransmission, which will significantly increase the delay of scheduling-free transmission

Method used

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  • Scheduling-free transmission method based on priorities

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Embodiment Construction

[0026] Such as figure 1 As shown, the present invention, that is, a priority-based scheduling-free transmission method, includes the following steps:

[0027] Step S1, the base station configures different scheduling-free transmission delay times for different service priorities;

[0028] Specifically, firstly, the base station assigns different service priorities to different services according to the transmission delay requirements of the services, that is, services with higher delay requirements have higher priority, and services with lower delay requirements have lower priority. low priority;

[0029] Then, the base station records different service priorities from high to low as first priority, second priority, ..., Nth priority (N≥2);

[0030] Finally, the base station sequentially configures the scheduling-free transmission delay time for the first priority as t 0 , configure the scheduling-free transmission delay time for the second priority as t 1 , ..., configure...

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Abstract

The invention relates to a scheduling-free transmission method based on priorities. The method comprises the steps that a base station configures different scheduling-free transmission delay time fordifferent business priorities; the base station sends the scheduling-free transmission delay time corresponding to the priorities to terminals; the base station configures scheduling-free transmissionresources for the terminals; and when uplink data of the terminals arrives, the terminals send data through utilization of pre-allocated scheduling-free transmission resources, wherein start time ofsending the data is not earlier than the scheduling-free transmission delay time corresponding to the business priorities of the data. According to the method, the base station configures the scheduling-free transmission delay time corresponding to the business priorities for the terminals, so a conflict problem among the business with the different priorities is avoided, a data transmission success rate of high priority business is improved, and quality of service of the system is ensured.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a priority-based scheduling-free transmission method. Background technique [0002] In a traditional wireless communication system, a scheduling-based uplink transmission process is usually used. The user equipment first sends a scheduling request to the base station for requesting uplink resources for new data transmission. After receiving the scheduling request, the base station knows that the user has data to transmit, but the base station does not yet know the amount of data in the user's cache. Therefore, the base station will feed back an uplink grant to the user, that is, allocate a certain amount of uplink resources to the user. The user will use this uplink grant to send a buffer status report to the base station, which is used to provide the serving base station with the amount of data to be transmitted in the user's uplink buffer. If the uplink grant ...

Claims

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Application Information

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IPC IPC(8): H04W72/12
CPCH04W72/569H04W72/23
Inventor 张梦莹王海峰周志刚于巧玲李慧卜智勇陆犇郑敏
Owner SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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