LTE system downlink interference coordination method, system and LTE base station
A technology for interference coordination and base stations, applied in electrical components, wireless communications, etc.
Active Publication Date: 2017-11-14
COMBA TELECOM SYST CHINA LTD
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[0005] Based on this, it is necessary to provide an LTE system downlink system that can effectively improve the throughput of edge users in the interference coordination process in view of the problem that it is difficult to ensure that the edge users of the cell can obtain higher throughput in the process of interference coordination in the existing technology. Interference Coordination Method
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[0029] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0030] See figure 1 , Which is a flowchart of an embodiment of a downlink interference coordination method for an LTE system of the present invention.
[0031] An LTE system downlink interference coordination method, including the steps:
[0032] S101: Acquire the received power of the first reference signal of the neighboring cell measured by the base station of the cell;
[0033] The base station of this cell will measure and save the first reference signal received power (RSRP, Reference Signal Receiving Power) of the neighboring cell when it is turned on. The base station may also measure and update the received power of the first reference signal of neighboring cells from time to time or periodically during use. Such as figure 2 As shown, it is a schematic dia...
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The invention discloses an LTE system downlink interference coordination method, system and LTE base station, wherein the method includes the steps of: calculating the neighbor factor of each neighboring cell corresponding to the own cell according to the received power of the first reference signal, and then calculating the neighbor factor of each neighboring cell The interference indicator list of the cell, and then add each interference indicator list, and screen out the final high-interference physical resource block, and finally perform interference coordination between the edge user and the central user in the cell. By calculating the neighbor factor of each neighbor cell corresponding to this cell, it accurately reflects the interference degree of the neighbor cell to this cell, and calculates the interference indication list of each neighbor cell according to the neighbor cell factor, so that different interference indication lists are Different neighbor factors are different, ensuring that the final high-interference physical resource block can be accurately screened in the follow-up, avoiding the misjudgment of the low-interference physical resource block as the final high-interference physical resource block, and ensuring that edge users have higher throughput.
Description
【Technical Field】 [0001] The present invention relates to the field of mobile communication technology, and in particular to a method, system and LTE base station for LTE system downlink interference coordination. 【Background technique】 [0002] The LTE system uses OFDMA (Orthogonal Frequency Division Multiple Access) in the downlink and SC-FDMA (Single-carrier Frequency-Division Multiple Access) technology in the uplink as the transmission method. These multiple access technologies use orthogonality between frequencies, so that in theory, users in this cell do not interfere with each other. The interference of all users mainly comes from other cells that use the same frequency resources, especially the edge users of the cell, and the co-frequency interference from adjacent cells is particularly serious. The LTE system regards improving and improving the performance of edge users as an important aspect of improving system throughput performance, and proposes many solutions for h...
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IPC IPC(8): H04W72/08H04W72/54
Inventor 曹慧刘重军秦伟刁穗东付杰尉
Owner COMBA TELECOM SYST CHINA LTD