Method and device for processing uplink pilot channel interference
A technology of a pilot channel and a processing method, which is applied in the field of an uplink pilot channel interference processing method and device, and can solve the problems of increasing the interference level of service time slots, unfavorable UpPCH offset setting, and failure to improve the connection rate, etc.
Active Publication Date: 2011-06-01
CHINA MOBILE GRP BEIJING
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[0007] In view of the problems in the related art that the adjustment of the UpPCH offset of the cell cannot improve the connection rate, it is not conducive to the UpPCH offset setting of each cell, and the problem that the UpPCH offset adjustment will increase the interference level of the service time slot, the present invention proposes an uplink The pilot channel interference processing method and device can improve the connection rate of the cell while adjusting the offset value of the uplink pilot channel of each cell, and avoid interference caused by offset adjustment
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[0046] In related technologies, the UpPCH offset adjustment cannot be combined with the connection rate of the cell, and multiple cells adopt a unified adjustment method. In this way, after the adjustment, not only the connection rate cannot be improved, but also the service time slot interference of the cell will be increased. Level. To solve this problem, the present invention proposes to determine the corresponding UpPCH offset value based on the relationship between the interference field strength and the connection rate, and offset the UpPCH of the cell according to the determined offset value, so that the UpPCH offset of the cell can take into account For the connection rate of the cell, UpPCH offset processing is performed on each cell to reduce the interference level of service time slots in the entire system.
[0047] The relevant meaning of the UpPCH will be firstly introduced below.
[0048] In a communication system such as TD-SCDMA, a user equipment (User Equipme...
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The invention discloses a method and device for processing uplink pilot channel interference. The method comprises the following steps: determining the threshold of the uplink pilot channel interference under the condition that the call completing rate of each cell in multiple cells meets the preset call completing rate requirement; determining the minimum uplink pilot channel deviation value, more than the minimum offset threshold, of each cell under the conditions that the field intensity of the uplink pilot channel interference of the cell is determined to be lower than the interference threshold and the call completing rate of the cell meets the preset call completing rate requirement; and deviating the uplink pilot channel of the cell according to the determined minimum uplink pilot channel deviation value. According to the invention, the factor of the call completing rate can be considered in the process of determining the uplink pilot channel deviation value, the call completing rate of the cell can be improved, and the system interference level can be comprehensively reduced.
Description
technical field [0001] The present invention relates to the communication field, in particular to a method and device for processing uplink pilot channel interference. Background technique [0002] At present, in the actual deployment process of Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) wireless network, it is found that the mutual interference between base stations is relatively serious, and this interference will seriously affect the uplink synchronization. performance. Specifically, the signal transmitted by a base station (interfering base station) on the Downlink Pilot Time Slot (DwPTS for short) reaches another base station (interfered base station) after propagation. Although the base stations are synchronized with each other, the Due to the long propagation delay, the DwPTS signal may enter the uplink pilot time slot (Uplink Pilot Time Slot, referred to as UpPTS) time slot of the interfered base station, or even enter the TS1 time slot of th...
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Inventor 肖建华王超
Owner CHINA MOBILE GRP BEIJING