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A method and device for adjusting and dispatching CQI

An adjusted, serving cell technology, applied in the field of adjustment and scheduling CQI, which can solve the problems of inconsistent channel conditions of scheduled data blocks, RLC layer retransmission, and uplink and downlink imbalance.

Active Publication Date: 2019-11-05
NANJING ZHONGXING SOFTWARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some handover areas, the downlink signal quality of the serving cell is good, but the uplink quality may not be the best, so there will be a certain uplink and downlink imbalance. The ACK obtained by uplink decoding the uplink high-speed dedicated physical control channel HS-DPCCH in the serving cell , NACK and CQI will have a lot of errors: decoding ACK into NACK will cause DUP measured by UE, decoding NACK into ACK will cause retransmission at the RLC layer, and CQI decoding will cause the scheduled data block to be inconsistent with the real channel conditions. These will seriously affect the downlink rate

Method used

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  • A method and device for adjusting and dispatching CQI
  • A method and device for adjusting and dispatching CQI
  • A method and device for adjusting and dispatching CQI

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Embodiment Construction

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0022] Such as figure 1 As shown, the present invention provides a schematic diagram of adjusting scheduling CQI.

[0023] First, the method for judging the up and down imbalance status of the serving cell is to judge by the SIR or SIRerror of the HS-DPCCH (Uplink High-speed Dedicated Entity Control Channel), specifically if the SIR of the serving cell is less than the preset threshold 1, for example, the SIR is less than 0 ; Or the SIR and the given SIR error are greater than the preset threshold 2, for example, if the SIR is greater than 4, it is determined that the cell is in an uplink and downlink imbalance state.

[0024] After judging the...

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Abstract

A CQI adjusting and scheduling method and device, the method comprising: first, a serving cell notifies and receives ACK and NACKdecoded by a non-serving cell uplink high-speed dedicated physical control channel (HS-DPCCH); then, the serving cell adjusts and schedules CQI according to the information of the received ACK and NACK decoded by the non-serving cell. When soft switching from uplink to downlink is unbalanced, the technical solution of the present invention reduces the impact of an uplink feedback error on a downlink rate, thus ensuring good communication.

Description

Technical field [0001] The present invention relates to the field of mobile communications, in particular to a method and device for adjusting scheduling CQI. Background technique [0002] In the soft handover of the wireless network of the CDMA system, the selection of the serving cell is judged according to the downlink signal quality. After the serving cell is determined, both uplink and downlink are performed through the serving link of the serving cell. HS-PDSCH (High-Speed ​​Physical Downlink Shared Channel) ACK, NACK feedback, and CQI are all obtained by the serving cell demodulating the uplink high-speed dedicated entity control channel HS-DPCCH information reported by the UE. In some handover areas, the downlink signal quality of the serving cell is good, but the uplink quality may not be the best. As a result, there will be a certain uplink and downlink imbalance. The ACK obtained by the uplink high-speed dedicated entity control channel HS-DPCCH is decoded by the serv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/16H04L1/00
CPCH04B7/04
Inventor 杜娟
Owner NANJING ZHONGXING SOFTWARE