A method and device for determining downlink frequency selection scheduling resources

A frequency selection scheduling and resource technology, applied in the field of communication, can solve the problem of low downlink throughput, achieve the effect of ensuring channel conditions and improving downlink throughput

Active Publication Date: 2011-12-28
DATANG MOBILE COMM EQUIP CO LTD
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

Under normal circumstances, the channel condition of the RBG corresponding to the subband currently reporting the CQI is better, so the existing technical solution is used to select the probability of selecting the RBG corresponding to the subband currently reporting the CQ

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  • A method and device for determining downlink frequency selection scheduling resources
  • A method and device for determining downlink frequency selection scheduling resources
  • A method and device for determining downlink frequency selection scheduling resources

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[0046] In view of the foregoing technical problems in the prior art, the embodiments of the present invention provide a method and device for determining downlink frequency selective scheduling resources, so that when determining downlink frequency selective scheduling resources, the one with the largest CQI value or the CQI value can be selected. The RBG corresponding to the subband with the highest MCS level value is used as the downlink frequency selective scheduling resource, thereby ensuring better channel conditions and improving downlink throughput. The method for determining downlink frequency selective scheduling resources may be as follows: the base station receives the current subband channel quality index CQI information reported by the user terminal, and determines the broadband frequency band BP corresponding to the current subband according to the current subband CQI information; The current subband CQI information updates the CQI value of the BP; the base station...

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Abstract

The invention discloses a method for determining a downlink frequency selection scheduling resource and a device, which aim at selecting a physical resource block corresponding to a subband with maximal subband channel quality indicator (CQI) value or with highest multi-channel server (MCS) grade value of the subband CQI information when the downlink frequency selection scheduling resource is determined, so a good channel condition can be guaranteed, and the downlink throughput can be improved. The method comprises the steps that: the present subband channel quality indicator (CQI) information reported by a user terminal is received by a basic station, a burst packet (BP) corresponding to the subband is determined according to the present subband CQI information, and the CQI value of the BP corresponding to the subband is updated; other subbands being attributive to the same broadband frequency band with the subband are determined, and the subband CQI value corresponding to other subbands is reduced; and a subband with the highest CQI value is determined from the subbands of the BP, and a resource block group (RBG) corresponding to the determined subband is determined as the downlink frequency selection scheduling resource corresponding to the BP.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for determining downlink frequency selection scheduling resources. Background technique [0002] According to the 3GPP 36.211 protocol, the user terminal (UE) periodically feeds back a downlink CQI (Channel Quanltity Indicator, channel quality index) to the base station on a PUCCH (Physical Uplink Control Channel, physical uplink control channel), and the downlink CQI is used to indicate the UE's satisfaction with the current downlink channel. [0003] Currently, in the LTE-TDD system, the modes that support periodic reporting of CQI information on the PUCCH can be shown in Table 1 below: [0004] Table 1 is a list of modes for reporting CQI information on PUCCH [0005] [0006] According to the protocol 3GPP 36.213, the downlink system bandwidth is divided into sub-bands, and classify the N sub-bands into J BPs (Bandwidth Parts, broadband frequency b...

Claims

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Application Information

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IPC IPC(8): H04W72/12H04L1/00
Inventor 李姗姗陆松鹤
Owner DATANG MOBILE COMM EQUIP CO LTD
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