Method and device for interference control and coordination
A technology of interference control and coordination method, which is applied to electrical components, wireless communication, network planning, etc., and can solve problems such as resource block interference
Active Publication Date: 2011-07-06
CHINA MOBILE GROUP DESIGN INST
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Problems solved by technology
In the prior art, whether it is the allocation of idle resource blocks or the interference control and coordination for different resource blocks, it is based on the condition that the communication system has fixed spectrum resources that can be used by unlicensed users. For the situation that the spectrum resources that can be used by unlicensed users in the communication system change, at this time, if the interaction between the resource blocks included in the changed spectrum resources is not considered in the process of allocating resource blocks, Then there may be a problem of strong interference between resource blocks used in different regions when resource blocks are used later
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[0040] In the embodiment of the present invention, after the spectrum that can be used by unlicensed users changes, the interference value caused by changes in spectrum resources and the like caused by changes in spectrum resources to each transmission channel included in the currently available spectrum and the current resources in each area of the resource block to be allocated are comprehensively considered. Block allocation status, and determine the use priority of resource blocks according to the above interference value and resource block allocation status, so as to solve the problem of inconsistency in the process of resource block allocation after the spectrum resources that can be used by unlicensed users change. Considering the mutual influence between the resource blocks included in the changed spectrum resources, there may be a problem that strong interference will occur between the resource blocks used in different regions when the resource blocks are used subsequ...
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The invention discloses a method and a device for interference control and coordination, which solve the problem of stronger interference between resource blocks used in different areas during subsequent use of the resource blocks. The method comprises the following steps: determining a transmission channel included in an available spectrum as well as resource blocks included in the transmission channel after a spectrum change is detected, and then determining the interference value of the transmission channel in interference; as to any area in all areas where to-be-allocated resource blocks are positioned, selecting the resource blocks different from the resource blocks to be allocated in the area at present from the determined resource blocks; determining a first weight factor determination strategy corresponding to the area according to first weight factor determination strategies corresponding to different allocation states; allocating first weight factors for the selected resource blocks according to the determined strategy; and allocating the selected resource blocks to the area, and configuring use priorities for the allocated resource blocks according to the interference value of the transmission channel and the first weight factors for the allocated resource blocks.
Description
technical field [0001] The invention relates to the technical field of computer and communication, in particular to an interference control and coordination method and device. Background technique [0002] In order to effectively utilize dynamically changing spectrum resources, CR technology was first proposed in 1999. CR technology means that unlicensed users with cognitive functions can perceive the surrounding environment, continuously detect licensed spectrum resources, and ensure that licensed users Use the currently detected spectrum holes (vacant frequencies) for communication with priority use and little loss in transmission performance. In the past ten years, CR technology has received extensive attention and is considered to be the most promising technology to solve the current shortage of wireless spectrum resources and the inefficiency of spectrum resource utilization. [0003] Orthogonal Frequency Division Multiplexing (OFDM, Orthogonal Frequency Division Multi...
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IPC IPC(8): H04W16/10H04W72/10
Inventor 宋智源孟德香吴晓岩高鹏
Owner CHINA MOBILE GROUP DESIGN INST