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Method and device for determining numbers of control region symbols of downlink sub-frames

A technology of controlling area and number of symbols, applied in the field of communication, can solve problems such as useless resource fragmentation, reduce system uplink throughput, etc., and achieve the effect of being beneficial to load balancing, improving system throughput, and being easy to implement

Active Publication Date: 2014-03-12
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] To sum up, the existing technology considers each downlink subframe independently when confirming the number of symbols in the control area of ​​the downlink subframe, which easily generates useless resource fragments and reduces the system uplink throughput.

Method used

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  • Method and device for determining numbers of control region symbols of downlink sub-frames
  • Method and device for determining numbers of control region symbols of downlink sub-frames
  • Method and device for determining numbers of control region symbols of downlink sub-frames

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Embodiment Construction

[0028] Embodiments of the present invention provide a method and device for determining the number of symbols in a control region of a downlink subframe, so as to reduce unavailable resource fragments and improve uplink throughput.

[0029] In the embodiment of the present invention, by reasonably determining the number of symbols in the control region, the available resource positions of the downlink PDCCH are limited, thereby reducing unavailable resource fragments and improving uplink throughput.

[0030] In the embodiment of the present invention, when determining the number of symbols in the control area of ​​a downlink subframe, the downlink subframes that feed back ack / nack information in the same subframe are considered as a whole (set a set of downlink subframes), and the control of each subframe is avoided. The problem of too many uplink resource fragments due to the large difference in the number of zone symbols. Moreover, in the embodiment of the present invention,...

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Abstract

The invention discloses a method and a device for determining the numbers of control region symbols of downlink sub-frames. The method and the device are used for reducing unavailable resource fragments and improving uplink throughput. The method for determining the numbers of the control region symbols of the downlink sub-frames comprises the following steps of: determining the total number of the control region symbols required to be allocated to all the downlink sub-frames in a downlink sub-frame set, wherein all the downlink sub-frames in the downlink sub-frame set are downlink sub-frames required to feed specific information back on an identical uplink sub-frame; and determining the numbers of the control region symbols of each downlink sub-frame in the downlink sub-frame set in a uniform allocation way.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and a device for determining the number of symbols in a control region of a downlink subframe. Background technique [0002] In the Long Term Evolution (LTE, Long Term Evolution) system, the Physical Uplink Control Channel (PUCCH, Physical Uplink Control Channel) is used to transmit uplink control information. According to different ways of determining the location of PUCCH resources, PUCCH can be divided into two categories: Type A PUCCH and Type B PUCCH. The Type A PUCCH is used to transmit Scheduling Request (SR, Scheduling Request) and Channel Quality Indicator (CQI, Channel Quality Indicator), etc., and its resource location is semi-statically configured by Radio Resource Control (RRC, Radio Resource Control). Type B PUCCH is used for the feedback of hybrid automatic repeat request (HARQ, Hybrid automatic repeat request) for downlink transmission, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/26H04L1/16H04W72/04
Inventor 李静张龙
Owner DATANG MOBILE COMM EQUIP CO LTD