Cell switching control method in LTE system, base station and system
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A technology of cell switching and control methods, applied in the fields of electrical components, wireless communication, etc.
Active Publication Date: 2010-12-01
DATANG MOBILE COMM EQUIP CO LTD
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[0014] The inventor found that the prior art does not provide the control technology for the UE to switch between different cells under the same HeNB
Method used
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Embodiment 1
[0065] The handover control in Embodiment 1 is all completed inside the HeNB. If the access mode or CSG ID of the cell where the UE is located changes after the handover, the HeNB only needs to notify the MME to update. A specific process such as Figure 4 shown, including the following steps:
[0066] S401. The HeNB determines UEs that need to perform cell handover in the serving cell;
[0067] S402. The HeNB determines the source cell currently served by the UE that needs to perform cell handover and the handover target cell;
[0068] S403. The HeNB judges whether the source cell and the target cell are both internal cells according to the internal cell information maintained locally, and if so, continue, otherwise according to figure 2 and image 3 The flow shown is switching control;
[0069] S404, the HeNB judges whether the access modes of the two cells are the same, if they are the same, continue, otherwise go to step S408;
[0070] S405. The HeNB judges whether t...
Embodiment 2
[0088] The handover control in the second embodiment requires the participation of the MME, and the MME makes a handover decision and notifies the HeNB whether to allow the handover. A specific process such as Figure 5 shown, including the following steps:
[0089] S501. The HeNB determines UEs that need to perform cell handover in the serving cell;
[0090] S502. The HeNB determines the source cell currently served by the UE that needs to perform cell handover and the handover target cell;
[0091] S503. The HeNB judges whether the source cell and the target cell are both internal cells according to the internal cell information maintained locally, and if so, continue, otherwise according to figure 2 and image 3 The flow shown is switching control;
[0092] S504, the HeNB judges whether the access modes of the two cells are the same, if they are the same, continue, otherwise go to step S508;
[0093] S505. The HeNB judges whether the access modes of the two cells are ...
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Abstract
The invention relates to a mobile communication technique, in particular to a cell switching technique in an LTE system. The invention provides a cell switching control method in an LTE system, a base station and a system. The method comprises the following steps: when the base station determines that the source cell and the target cell of the mobile terminal which need cell switching as the internal cells of the base station, respectively determining the access modes of the source cell and the target cell; and when the access modes of the two cells are different, or when the CSG IDs of the two cells are different but the CSG ID of the target cell is contained in the allowed CSG ID list of the mobile terminal, or when the CSG ID of the target cell is not contained in the allowed CSG ID list of the mobile terminal but the working mode of the target cell is a mixed mode or an open mode, switching the mobile terminal from the source cell to the target cell, or controlling the switching according to the switching judgment result of MME. Thus, the invention can conveniently realize switching control when the access modes of the two cells in which the UE are positioned before and after the switching are different or the CSG IDs are different.
Description
technical field [0001] The invention relates to mobile communication technology, in particular to a cell switching technology in an LTE system. Background technique [0002] Modern mobile communications tend to provide high-speed multimedia services. The birth of the LTE (Long Term Evolution, Long Term Evolution) system HeNB (Home eNodeB, home base station) has effectively improved the coverage, throughput and indoor coverage of the system in hotspot areas. The user's transfer experience. [0003] Different from traditional cellular communication base stations, a home base station is a small, flexible base station that can be installed indoors. Statistics show that for high-speed multimedia services, more application scenarios of broadband services are indoors and hot spots. However, the traditional cellular mobile communication method does not provide sufficient support for such requirements. The birth of the home base station is to solve such a contradiction and provide...
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Application Information
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