Interference control method and device for hsdpa
A technology of interference control and limiting unit, applied in the field of interference control of HSDPA, can solve the problems of affecting communication performance and the fluctuation of adjacent cells due to changes in the number of basic physical resource units used, so as to reduce overhead and reduce fluctuations.
Inactive Publication Date: 2017-04-05
COMBA TELECOM SYST CHINA LTD
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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 and joint detection of HS-SCCH (High Speed Shared Control Channel) and HS-SICH (High Speed Shared Information Channel). , smart antenna and other technologies; it does not solve the problem that the change in the number of basic physical resource units used in the HSDPA scheduling of the main cell will cause fluctuations in interference to adjacent cells, and additional system resources are required
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[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. Since the maximum number of basic physical resource units that can be used by the HSDPA scheduling module is fixed during the first resource scheduling, starting from the second scheduling, the HSDPA interference control method proposed in the present invention is performed. Please refer to figure 1 , Including steps:
[0029] S101. Obtain the upper limit of the number of basic physical resource units available in the previous resource scheduling period;
[0030] S102. Obtain the number of basic physical resource units actually used in the previous resource scheduling period.
[0031] S103: Calculate the upper limit of the number of available basic physical resource units in the current resource scheduling period;
[0032] According to the interference...
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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 present invention relates to the field of mobile communication, in particular to a method and device for interference control of HSDPA. 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. The high-speed service of HSDPA is mainly carried through HS-DSCH (high-speed downlink sharing Channel) to achieve transmission. HS-PDSCH (High Speed Physical Downlink Shared Channel) is a physical channel mapped by HS-DSCH (High Speed Downlink Shared Channel), which is mainly used to carry HS-DSCH downlink data. For the HSDPA system, the HSDPA scheduling module allocates a certain number of basic physical resource units to HSDPA users for downlink data transmission each time. There is interference in the HSDPA networking, which affects the communication performance. [0003] At present, the main means to control HSDPA network interfe...
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IPC IPC(8): H04W72/12
Inventor 朱化鼎林敏李馨李俊李湘宏
Owner COMBA TELECOM SYST CHINA LTD