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HSDPA interference control method and apparatus

A technology of interference control and limiting units, applied in the field of interference control of HSDPA, can solve the problems of interference fluctuations of adjacent cells caused by changes in the number of basic physical resource units used, affecting communication performance, etc., and achieve the effect of reducing overhead and reducing fluctuations

Inactive Publication Date: 2014-06-18
COMBA TELECOM SYST CHINA LTD
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

There is interference in HSDPA networking, which affects communication performance
[0003] At present, the main means of controlling HSDPA network interference is fast power control of HS-SCCH (High Speed ​​Shared Control Channel) and HS-SICH (High Speed ​​Shared Information Channel) Detection, smart antenna and other technologies; in the HSDPA scheduling of the main cell, the change of the number of basic physical resource units used will cause interference fluctuations to adjacent cells, and additional system resources are required

Method used

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  • HSDPA interference control method and apparatus
  • HSDPA interference control method and apparatus
  • HSDPA interference control method and apparatus

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Embodiment Construction

[0027] In order to facilitate the understanding of the present invention, the following will be described in conjunction with the accompanying drawings.

[0028] The HSDPA scheduling module starts the HSDPA interference control function, because during the resource scheduling for the first time, the maximum basic physical resource unit number that the HSDPA scheduling module can use is fixed, from the second scheduling, carry out the interference control method of HSDPA proposed by the present invention, Please refer to figure 1 , including the steps:

[0029] S101. Obtain an upper limit value of the number of basic physical resource units available in the previous resource scheduling cycle;

[0030] S102. Obtain the number of basic physical resource units actually used in the last resource scheduling cycle;

[0031] S103. Calculate the upper limit of the number of available basic physical resource units in the current resource scheduling period;

[0032] Calculate the numb...

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Abstract

The invention provides an HSDPA (High Speed Downlink Packet Access) interference control method, comprising the steps of obtaining the upper limit value of an available basic physical resource element number in a last resource dispatching cycle; obtaining the basic physical resource element number in actual use in the last resource dispatching cycle; calculating the upper limit value of an available basic physical resource element number in a current resource dispatching cycle in dependence on interference smooth factors, the upper limit value of an available basic physical resource element number in the last resource dispatching cycle, and the basic physical resource element number in actual use in the last resource dispatching cycle; and defining a basic physical resource element number in the current resource scheduling period by using the upper limit value of an available basic physical resource element number in the current resource dispatching cycle. The invention also provides an HSDPA interference control apparatus which can reduce fluctuation to same frequency carrier wave downlink interference of neighboring cells and reduce system cost.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a HSDPA interference control method and device. Background technique [0002] HSDPA (High Speed ​​Downlink Packet Access) is an enhanced technology proposed by 3GPP in the R5 protocol to support high-speed asymmetric data services. channel) to achieve transmission. HS-PDSCH (High Speed ​​Physical Downlink Shared Channel, high-speed physical downlink shared channel) is a physical channel mapped by HS-DSCH (High Speed ​​Downlink Shared Channel, high-speed downlink shared channel), mainly used to carry the downlink data of HS-DSCH. For the HSDPA system, the HSDPA scheduling module allocates a certain number of basic physical resource units for the HSDPA users for downlink data transmission each time. Interference exists in the HSDPA network, which affects communication performance. [0003] At present, the main means of controlling HSDPA network interference is fast power cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/12
Inventor 朱化鼎林敏李馨李俊李湘宏
Owner COMBA TELECOM SYST CHINA LTD