Switching method in long-termed evolution enhancing system and system

A technology for long-term evolution and evolution of base stations, which is applied in the directions of access restriction, electrical components, wireless communication, etc., and can solve the problems of complicated access process, long access time, and unguaranteed cell access quality.

Active Publication Date: 2010-09-29
北京万海云科技有限公司
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Problems solved by technology

[0011] In the Rel-8 handover failure processing method, the UE reselects the cell to be accessed at random, which causes the cell access quality of the UE to be unguaranteed, and the access time is relatively long, and the access process is also relatively complicated

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  • Switching method in long-termed evolution enhancing system and system
  • Switching method in long-termed evolution enhancing system and system
  • Switching method in long-termed evolution enhancing system and system

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Embodiment Construction

[0031]The core idea of ​​the present invention is: after the UE receives the configuration information of the current primary component carrier (PCC, Primary CC) and each secondary component carrier (SCC, Secondary CC) sent by the source eNB, the UE only supports connection from one CC. In the case of entry, if the UE fails to access the current PCC, it will judge whether each SCC can be used as a backup PCC according to the received configuration information of the SCC, and obtain the priority order of the SCCs that can be used as the backup PCC. Sequence, try to access the SCC with the highest priority that can be used as the backup PCC, if the access is successful, use the SCC as the current PCC, and if the access fails, try to access the SCC with the second highest priority that can be used as the backup PCC until the access is successful , using the accessed SCC as the current PCC, and then the UE sends a handover completion message to the target eNB, which can help the ta...

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Abstract

The invention discloses a switching method in a long-termed evolution enhancing system and the system. The method comprises the following steps that: UE receives configuration information that a source eNB sends to SCC and current PCC; when UE supports single-carrier access and after the access of the current PCC fails, whether all SCCs can serve as backup PCCs is judged according to the configuration information, all the SCCs are sequentially accessed according to the priority of the backup PCCs until the access succeeds, the accessed SCC serves as the current PCC, a switching complete message is sent to a target eNB, and the current PCC is marked; and when UE supports and simultaneously accesses a plurality of CCs, according to the configuration information, a plurality of CCs are accessed simultaneously, if the current PCC fails to be accessed but the backup PCC is successfully accessed, the SCC which is successfully accessed and has the highest priority is found out according to the configuration information and serves as the current PCC, and the switching completion message is sent to the target eNB. In the method, UE can be quickly connected to a community with the best access quality, the access time is short and the process is simple.

Description

technical field [0001] The present invention relates to mobile communication technology, in particular to a handover method and system in a long-term evolution enhanced system. Background technique [0002] After 3GPP's Long Term Evolution (LTE, Long Term Evolution) technology, the 3GPP organization continued to enhance the LTE solution. This enhanced technology is called LTE-A (LTE-Advanced) technology, that is, LTE-A is the LTE technology subsequent evolution. [0003] In the LTE system, the user equipment (UE) only supports accessing the evolved base station (eNB) from one component carrier (CC, Component carrier) for data transmission. In this way, when the UE performs cell handover and the handover fails, it will use the Rel- 8 Handover failure processing method for processing. figure 1 A flow chart of a method for handling Rel-8 handover failure in an LTE system provided by the prior art. Such as figure 1 As shown, the flow of the processing method for Rel-8 handov...

Claims

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Application Information

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IPC IPC(8): H04W36/08H04W48/08
Inventor 李国荣张鹏常永宏
Owner 北京万海云科技有限公司
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