Method for improving scheduling efficiency
A scheduling algorithm and efficiency technology, applied in the direction of network traffic/resource management, electrical components, wireless communication, etc., can solve the problems of reducing the efficiency of system scheduling, reducing user throughput, affecting the accuracy of downlink beamforming, etc., to achieve improved Scheduling efficiency, the effect of compensating the influence of scheduling efficiency
Active Publication Date: 2014-12-24
TD TECH COMM TECH LTD
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Problems solved by technology
The acquisition of these parameters needs to be obtained based on the uplink channel information fed back by the user. In this way, if the uplink channel information fed back by the user is not timely, it will affect the accuracy of system scheduling.
In addition, as mentioned above, if the uplink channel information fed back by the user is not timely, it will affect the accuracy of the downlink beamforming, and the inaccuracy of the downlink beamforming will lead to a decrease in user throughput. Reduce the efficiency of system scheduling based on data throughput
[0005] To sum up, the inaccurate system scheduling will be caused by the untimely user feedback of uplink channel information, and it will also affect the inaccuracy of downlink beamforming, further reducing the efficiency of system scheduling.
At present, a method that can effectively overcome the above problems has not been proposed
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[0018] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0019] The core idea of the present invention is: when scheduling, use the time difference between the current and the last time to obtain the estimated code of uplink channel information to set the scheduling correction parameter α of each current user to be scheduled i , using the α i The scheduling formula used in the current scheduling is corrected to compensate for the inaccuracy of the scheduling parameters caused by the feedback delay, so as to ensure the scheduling efficiency of the current scheduling algorithm.
[0020] figure 1 It is a schematic flow chart of Embodiment 1 of the present invention. like figure 1 As shown, this embodiment mainly includes the following steps:
[0021] Step 101, in the current scheduling subfr...
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The invention provides a method for improving scheduling efficiency. In the scheduling process, by using an interval between the current moment and a moment at which an estimated code of uplink channel information is acquired last time, scheduling correction parameters of users to be scheduled currently are set, and a scheduling formula used by the current scheduling process is corrected by using the scheduling correction parameters, so that influences on the scheduling efficiency, which are generated because the uplink channel information is fed back by the users untimely, can be reduced.
Description
technical field [0001] The invention relates to mobile communication technology, in particular to a method for improving scheduling efficiency. Background technique [0002] In the TD-SCDMA system, when performing downlink beamforming (DL Beamforming), it is necessary to calculate the downlink forming vector according to the estimation result of the uplink channel. The more timely the uplink channel information feedback used for uplink channel estimation is, the more accurate the downlink beamforming is. However, in the existing system, there may be a large gap between the time when downlink beamforming is performed and the time when the last uplink channel estimation result is obtained. The frequency cannot be sent continuously, but the downlink data needs to be transmitted continuously. In this way, the uplink channel estimation result used when performing downlink beamforming may not accurately reflect the current channel conditions, that is, the uplink channel estimati...
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IPC IPC(8): H04W28/18H04W72/12
Inventor 范晨王大飞沈东栋杨小倩
Owner TD TECH COMM TECH LTD