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Resource scheduling method, device and a communication system

A resource scheduling and resource scheduling technology, applied in the field of communication, can solve problems such as long round-trip time, data cannot be successfully sent, business cannot be successfully executed, etc., to achieve the effect of improving the execution success rate and reducing the round-trip time

Active Publication Date: 2009-06-17
CHINA MOBILE COMM GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Embodiments of the present invention provide a method and device for resource scheduling and a communication system to solve the business that requires high delay in the prior art. Since the round-trip time may be long, the data cannot be sent successfully, and the business Problems that cannot be executed successfully

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  • Resource scheduling method, device and a communication system
  • Resource scheduling method, device and a communication system
  • Resource scheduling method, device and a communication system

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Embodiment Construction

[0026] In order to achieve the purpose of the present invention, the applicant utilizes the characteristics of different round-trip times when carrying and sending data packets for different physical resources (time slots or subframe positions) in the TDD system. Services with higher requirements are carried on physical resources with shorter round-trip times. The solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] In each embodiment of the present invention, scheduling is performed in units of the smallest physical resource, which is called the smallest scheduling resource block (Resource Block, RB). The smallest scheduling unit of different systems may be different, and the composition and size of RBs are also different. . For example, in the time domain of the TDD system, there are 5 subframes in a 5ms frame, and each subframe is 1ms; while in the frequency domain with a bandwi...

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Abstract

The invention discloses a resource scheduling method, which comprises distributing priority to an executory service, confirming turnaround time corresponding to each sub frame of bearing service data in a cycle, selecting data of sub frame bearing service according to the priority of services and the turnaround time of the sub frames, wherein a service with higher priority selects resources in a sub frame with shorter turnaround time. The turnaround time of important data is reduced through the method as much as possible, and the execution success ratio of important services is greatly improved. The invention further discloses a resource scheduling device and a communication system.

Description

technical field [0001] The present invention relates to data transmission technology in the communication field, in particular to a method and device for resource scheduling and a communication system. Background technique [0002] During the data transmission process of a time division duplex (TDD) system and a frequency division duplex (FDD) system, the medium access control (MAC) layer on the receiving side generally needs to If there are many data packets to be processed, a certain amount of queuing time is required. These queuing time and processing time can be called MAC layer delay. In the long term evolution standard (Long term evaluation, LTE) of 3GPP The MAC layer delay defined in is about 2ms-3ms. Since the data transmission process of the TDD system is a discontinuous process, the feedback information returned by the receiving side must be transmitted using the corresponding time slot, so it requires a longer round trip time (Round Trip Time, RTT) than the FDD s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L29/06H04W72/12
Inventor 李男徐晓东
Owner CHINA MOBILE COMM GRP CO LTD
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