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A kind of pdcch scheduling method and equipment

A scheduling method and channel technology, applied in the field of communication, can solve problems such as user service experience bottlenecks, and achieve the effects of maximizing system capacity, improving success rate, and ensuring quality

Active Publication Date: 2018-02-02
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is to say, when the user experience caused by the deterioration of the control area due to interference is more serious than the deterioration of the data area, the reception of the control area will become the bottleneck of the user service experience

Method used

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  • A kind of pdcch scheduling method and equipment
  • A kind of pdcch scheduling method and equipment

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Embodiment Construction

[0013] In order to solve the technical problems raised in the background technology, the present invention adds an enhanced PDCCH control function to the LTE communication system. This function will be used in conjunction with frequency selective scheduling to improve the quality of DCI data transmission, thereby improving the reliability of PDCCH channel transmission of DCI data. Improve user awareness of downlink data services.

[0014] Such as figure 1 As shown, it is a schematic flow chart of a PDCCH scheduling method proposed by the present invention, including the following steps:

[0015] S101, the base station judges whether the enhanced physical downlink control channel PDCCH switch is turned on.

[0016] When the user performs downlink services, it first determines whether the terminal can perform periodic subband CQI reporting, and if the terminal enables periodic subband CQI reporting, then confirms whether to enable the enhanced PDCCH switch. Specifically, befor...

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Abstract

The invention discloses a PDCCH scheduling method. After judging that the enhanced PDCCH switch is turned on, the base station selects the subband with the largest CQI from the subbands of the channel quality indicator CQI reported by the terminal UE as the resource of the frequency band carrying the downlink control information DCI, and assigns the subband in the PDSCH resource area at the beginning of the frequency band The first 5 PRBs are used as frequency resources for fixedly carrying DCI information. It improves the success rate of terminals receiving PDCCH in the presence of interference, and provides a reliable prerequisite for correctly parsing PDSCH service data, thereby ensuring the quality of air interface data transmission. Compared with the original implementation, the user throughput is improved in the same environment, and further The maximum system capacity of the wireless communication system is ensured.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a PDCCH scheduling method. The present invention also relates to a PDCCH scheduling device. Background technique [0002] The current TD-LTE system uses the PDCCH channel in the control area to carry downlink control information DCI (Downlink Control Information), including scheduling information and uplink power control information for downlink and uplink data transmission. When the user performs data services, the terminal will receive and demodulate the downlink PDSCH data in the data area of ​​the subframe according to the demodulated DCI information of the PDCCH channel. [0003] However, the inventor found in the process of implementing the present invention that if implemented according to the current system, in a wireless environment with interference, the PDCCH channel has strong interference, but the PDSCH channel interference is relatively weak. That is to say...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/08H04W72/12H04W72/54
CPCH04L5/0057H04W72/0453H04W72/23
Inventor 孙中亮黄国平
Owner DATANG MOBILE COMM EQUIP CO LTD