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Method and system for scheduling uplink sub-frames

A technology of subframes and subframes, applied in the field of scheduling uplink subframes, can solve the problems of inability to schedule more users, limited cell capacity, waste of PDCCH resources, etc.

Active Publication Date: 2014-04-02
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved in this application is to provide a method and system for scheduling uplink subframes to solve the problem that existing scheduling methods waste PDCCH resources, resulting in the inability to schedule more users due to limited PDCCH resources, resulting in limited cell capacity

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  • Method and system for scheduling uplink sub-frames
  • Method and system for scheduling uplink sub-frames
  • Method and system for scheduling uplink sub-frames

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Embodiment Construction

[0065] In order to make the above objects, features and advantages of the present application more obvious and comprehensible, the present application will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0066] The method and system for scheduling uplink subframes proposed in this application can dynamically select the scheduling method. When multi-frame scheduling is adopted, by issuing a PDCCH, the resources allocated for two different uplink subframes can be carried, thereby saving PDCCH resources, scheduling more users and increasing cell capacity.

[0067] The method for scheduling uplink subframes of the present application deals with the situation that one downlink subframe simultaneously schedules two different uplink subframes in an LTE-TDD system. The wireless frame structure used in the LTE-TDD system is the type2 wireless frame defined in 3GPP TS 36.211. The length of the wireless frame is 10...

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Abstract

The invention provides a method and a system for scheduling uplink sub-frames to solve the problem of limited cell capacity caused by the fact that the existing scheduling method is incapable of scheduling more users due to the limited PDCCH (Physical Downlink Control Channel) resources resulting from PDCCH resource waste. The method provided by the invention can simultaneously schedule two uplink sub-frames in relative to one downlink sub-frame according to different to-be-transmitted data by selecting different scheduling manners. Single frame scheduling is preferred when the to-be-transmitted data is transmitted for the first time; multi-frame scheduling is preferred when the to-be-transmitted data is retransmitted. By dynamically selecting the scheduling manners, the method can bear resources allocated to two different uplink sub-frames by issues a PDCCH when adopting multi-frame scheduling, thereby saving PDCCH resources, scheduling more users, and improving the cell capacity.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a method and system for scheduling uplink subframes. Background technique [0002] The Long Term Evolution (LTE) project is the evolution of 3G. LTE is a transition between 3G and 4G technologies. It is the global standard of 3.9G. It improves and enhances the air access technology of 3G. Division Multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) and Multiple-Input Multiple-Output (Multiple-Input Multiple-Out-put, MIMO) technologies are the only standards for wireless network evolution. Under the 20MHz spectrum bandwidth, it can provide the peak rate of downlink 326Mbit / s and uplink 86Mbit / s, which improves the performance of cell edge users, increases cell capacity and reduces system delay. [0003] The LTE system is divided into a frequency division duplex (Frequency Division Duplexing, FDD) system and a time division duplex (Time Division Du...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W72/12
Inventor 刘阳刘蓉
Owner DATANG MOBILE COMM EQUIP CO LTD
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