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Method for controlling channel unit distribution

A technology for controlling channel units and allocation methods, applied in electrical components, wireless communications, etc., can solve problems affecting uplink throughput, waste of uplink control channel resources, A/N occupation, etc., to improve PUCCH resource utilization and uplink throughput The effect of increasing quantity and reducing waste

Inactive Publication Date: 2015-06-03
POTEVIO INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the A / N resource position of PUCCH is fixedly mapped to each downlink subframe segment, there will be 11 CCEs among the 33 CCEs whose index is 22~54 in the second segment in subframe 0 (that is, the index is 44~54). 54 CCEs) are not used for downlink scheduling grants, these 11 CCEs that are not used for downlink scheduling grants, the resource positions of the feedback A / N are still reserved in the PUCCH (ie Figure 4 resource positions 66-77 in the middle), cannot be occupied by A / N of other subframes
Due to the single-carrier characteristics of the uplink and the limitation of transmission resources, these vacated resources are difficult to be fully utilized by PUSCH, resulting in waste of uplink control channel resources and affecting uplink throughput
[0019] Therefore, it can be seen that the above-mentioned traditional CCE allocation method will lead to waste of PUCCH resources, thereby affecting uplink throughput

Method used

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Embodiment Construction

[0031] 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.

[0032] The core idea of ​​the present invention is: carry out unified CCE planning on the set of downlink subframes that feed back A / N at the same time, so that the total number of uplink and downlink CCEs in these subframes can reach this ratio, so that the downlink scheduling of each subframe can be avoided The number of resources occupied by the PUCCH caused by the number-independent allocation method is relatively large and resources are wasted.

[0033] Figure 5 It is a schematic flow chart of Embodiment 1 of the present invention, such as Figure 5 As shown, this embodiment mainly includes:

[0034] Step 501: Divide downlink subframe sets for downlink subframes of current scheduling resources in such a way that all downlink subfr...

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Abstract

The present application discloses a method for controlling channel unit distribution, characterized by including: a, performing downlink sub-frame set division on a downlink sub-frame of a current dispatch resource in the same way as all downlink sub-frames of the same uplink sub-frame feedback ACK / NACK information belonging to the same set; regarding each downlink sub-frame set K, using a CCE resource in the set scope, to distribute up and down dispatch resources in a unified manner according to the principle of, during downlink dispatching, preferably occupying an idle CCE resource of a minimum index number in the set and preferably using an idle CCE resource of a sub-frame which is in the front of the sequence in the set in a same CCE segment scope. According to the method of the present invention, the use ratio of the PUCCH resource can be effectively increased.

Description

technical field [0001] The invention relates to mobile communication technology, in particular to a method for allocating control channel units. Background technique [0002] In a wireless communication system, for accurate and efficient communication between a base station and a user equipment (UE), the UE needs to feed back uplink control information (Uplink Control Information, UCI) to the base station. Uplink control information includes: Scheduling Request Indicator (SR); Acknowledgment / Negative-Acknowledgment (A / N); Channel Quality Indicator (CQI), Rank Indicator (Rank Indicator, RI ) and Precoding Matrix Indicator (PrecodingMatrix Indicator, PMI). Among them, SR is used for the UE to request uplink resources from the base station, A / N is used for the UE to indicate to the base station whether the downlink data is received correctly, and information such as CQI is used for the UE to indicate the measured downlink channel quality to the base station. [0003] In the L...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04
CPCH04W72/53H04W72/23
Inventor 韦玮吕征南
Owner POTEVIO INFORMATION TECH CO LTD