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Reestablishing method of RRC (Radio Resource Control) connection in LTE (Long Term Evolution) system and base station

A technology for wireless resource control and connection re-establishment, applied in wireless communication, connection management, electrical components, etc., can solve problems such as dropped calls, and achieve the effect of avoiding dropped calls

Active Publication Date: 2010-09-29
北京万海云科技有限公司
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  • Application Information

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Problems solved by technology

[0010] However, in the existing LTE technology, there is no specific process of how to initiate RRC connection re-establishment in the cell of the target eNB when the handover fails. Therefore, when the inter-eNB handover of the UE fails, it will cause call drop

Method used

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  • Reestablishing method of RRC (Radio Resource Control) connection in LTE (Long Term Evolution) system and base station
  • Reestablishing method of RRC (Radio Resource Control) connection in LTE (Long Term Evolution) system and base station
  • Reestablishing method of RRC (Radio Resource Control) connection in LTE (Long Term Evolution) system and base station

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Embodiment Construction

[0027] figure 2 It is a flowchart of an RRC connection re-establishment method in an LTE system according to an embodiment of the present invention. Such as figure 2 As shown, when the handover of the UE from the source eNB to the target eNB fails, the method includes the following steps:

[0028] In step 201, the UE sends an RRC connection re-establishment request message to the target eNB, the target eNB sends an RRC connection re-establishment message to the UE, and the UE sends an RRC connection re-establishment complete message to the target eNB.

[0029] In step 202, the target eNB sends an RRC connection configuration message to the UE, and the UE sends an RRC connection configuration complete message to the eNB.

[0030] Step 203, the target eNB sends a notification message to the evolved packet switching center EPC.

[0031] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present inve...

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Abstract

The invention discloses a reestablishing method of an RRC (Radio Resource Control) connection in an LTE (Long Term Evolution) system and a base station. In the method, when failing to switch from a source base station eNB to a target eNB, UE sends an RRC connection reestablishing request message to the target eNB, the target eNB sends the RRC connection reestablishing request message to the UE, the UE sends an RRC connection reestablishing finishing message to the target eNB, the target eNB sends an RRC connection configuration message to the UE, the UE sends an RRC connection configuration finishing message to the target eNB, and the target eNB sends a notification message to an EPC (Evolution Packet Switching Center). With the technical scheme, the dropped call condition caused by failed switching between the UE and the eNB can be avoided.

Description

technical field [0001] The present invention relates to mobile communication technology, in particular to a radio resource control (RRC, Radio Resource Control) connection re-establishment method in a long term evolution (LTE, Long Term Evolution) system and a base station. Background technique [0002] The LTE network is a flat network consisting of an Evolved Universal Terrestrial Radio Access (E-UTRAN) network and an Evolved Packet Core (EPC). Compared with the 3G technology, the biggest change of the LTE network is that the radio network controller (RNC, Radio Network Controller) is removed from the radio access network, which reduces the network delay. In LTE, the E-UTRAN includes a collection of base stations (eNB, evolved Node B) in the LTE network connected to the EPC through the S1 interface, and the eNBs are connected through the X2 interface. [0003] Due to the flat nature of the LTE network, handover between eNBs through the S1 interface or X2 interface will be...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W76/02
Inventor 张立恒杨刚
Owner 北京万海云科技有限公司
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