A method and system for frequency point transfer
A frequency point, communication system technology, applied in electrical components, wireless communication, etc., can solve the problem of user equipment dropped calls, and achieve the effect of avoiding dropped calls, stabilizing the communication network, and saving network resources
Active Publication Date: 2010-05-12
DATANG MOBILE COMM EQUIP CO LTD
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Problems solved by technology
[0009] The present invention provides a method and system for transferring frequency points, which is used to solve the problem in the prior art that the radio link (RL) is easily disconnected during frequency point transfer, which causes user equipment to drop calls
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[0042] In order to solve the problem in the prior art that the radio link (RL) is easily disconnected when the frequency point is transferred, the present invention enables the base station and the user equipment to transfer the frequency point at the same time by setting the adjustment time point.
[0043] see figure 2 , the communication system in this embodiment includes a radio network controller 201 , a base station 202 and a user equipment 203 .
[0044] The radio network controller 201 initiates frequency point transfer when the cell is interfered with and needs to adjust the cell frequency point, and sends an extended cell reconfiguration command message and a physical channel reconfiguration (Physical ChannelReconfiguration) message, which carries the transfer time, instructs the base station and The user equipment transfers frequency points at designated times respectively.
[0045] The format of the extended cell reconfiguration command message is shown in the fol...
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The invention discloses a method and a system for transferring a subsidiary carrier wave frequency point in a TD-SCDMA system. The invention is used for solving the problem in the prior art that an easy cut wireless link is existed when the frequency point transfers to cause the user equipment to be cut off. In the method, a wireless network controller indicates a base station to transfer a certain carrier wave to an appointed second frequency point from a first frequency point at the appointed time; the base station sends responsive information to the wireless network controller; after the wireless network controller receives the responsive information accepting the indication sent by the base station, the user equipment on the subsidiary carrier wave transfers the used physical resourcefrom the first frequency point to the appointed second frequency point at the appointed time; the base station and the user equipment transfer the subsidiary carrier wave to the second frequency pointrespectively according to the appointed time. The system comprises the wireless network controller, the base station and the user equipment.
Description
technical field [0001] The invention relates to the field of wireless communication, in particular to a method and a system for adjusting a frequency point while maintaining a wireless link. Background technique [0002] In a multi-frequency TD-SCDMA system, based on the requirements of network optimization, to reduce the interference of adjacent cells, it is often necessary to move the frequency points where the auxiliary carriers of some cells are located. During the movement, other resources of the auxiliary carriers such as Slot blocking, slot direction, etc. remain unchanged. [0003] At present, the existing technology requires two cell reconfiguration processes to realize the transfer of the cell frequency point, see figure 1 The basic flow shown. To give an example, cell A is a 3-carrier cell, its main carrier 1 is at frequency 1, and auxiliary carriers 2 and 3 are at frequency 2 and frequency 3 respectively. During normal operation of the cell, all three frequenci...
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IPC IPC(8): H04W36/18H04W72/00
Inventor 丁国栋郭庆
Owner DATANG MOBILE COMM EQUIP CO LTD