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Dual-connection operation method, base station, UE and MME

A dual-connection, base station technology, applied in the field of communication, can solve problems such as the inability to achieve lossless interchange between MeNB and SeNB

Active Publication Date: 2017-10-31
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The current related technology cannot realize the lossless exchange of MeNB and SeNB in ​​the case of dual connectivity

Method used

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  • Dual-connection operation method, base station, UE and MME
  • Dual-connection operation method, base station, UE and MME
  • Dual-connection operation method, base station, UE and MME

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] In step 100, the UE is in the split bearer dual connectivity, eNB1 is a MeNB, and eNB2 is a SeNB. The MeNB initiates a SeNB Modification (modification) procedure (existing procedure), and modifies the splitbearer type dual connectivity to the MCG / SCG bearer type dual connectivity.

[0070] Step 101, UE is in MCG / SCG bearer type dual connectivity, eNB1 is MeNB, and eNB2 is SeNB. According to the measurement report reported by the UE, eNB1 knows that the signal of eNB1 detected by the UE is getting weaker and weaker, while the signal of eNB2 is better, and eNB1 decides to trigger the identity exchange between MeNB and SeNB of UE. The eNB1 sends a HANDOVER REQUEST (handover request) message to the eNB2, carrying an identity exchange indication between the MeNB and the SeNB.

[0071] Step 102, eNB2 receives the HANDOVER REQUEST message, and according to the MeNB and SeNB identity exchange indication carried in the message, determines that this is a special handover request...

Embodiment 2

[0079] Step 201, UE is in MCG / SCG bearer type dual connectivity, eNB1 is MeNB, and eNB2 is SeNB. According to the measurement report reported by the UE, eNB1 knows that the signal of eNB1 detected by the UE is getting weaker and weaker, while the signal of eNB2 is better, and eNB1 decides to trigger the identity exchange between MeNB and SeNB of UE. eNB1 sends a MeNB and SeNB identity exchange request message to eNB2, carrying the Old eNB UE X2AP ID (the X2 interface application protocol identification (ID) of the UE on the old eNB side) (the eNB UE X2AP ID of the UE on the eNB1 side), the Old MME UE S1AP ID (the S1 interface application protocol ID of the UE on the old MME side) (the MME UES1AP ID of the UE on the MME side corresponding to eNB1).

[0080] Step 202, eNB2 receives the MeNB and SeNB identity exchange request message, and understands that the purpose of the message is to complete the UE's MeNB and SeNB identity exchange. eNB2 agrees to the request, keeps the ori...

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Abstract

The invention discloses a dual-connection operation method. The method comprises the following steps: a primary base station sends identity exchange request message about the primary base station and a secondary base station to the secondary base station; the primary base station sends a wireless resource control protocol connection reconfiguration message to the UE after receiving the confirmation message of the secondary base station, wherein the wireless resource control protocol connection reconfiguration message carries the identity exchange indication information about the primary base station and the secondary base station. By using the scheme disclosed by the invention, the nondestructive exchange of the MeNB and the SeNB can be achieved when the UE performs the dual-connection operation.

Description

technical field [0001] The present application relates to but not limited to the technical field of communication, especially a dual connectivity operation method, a base station, a user equipment (User Equipment, UE for short), and a mobile management entity (Mobile Management Entity, MME for short). Background technique [0002] A Long Term Evolution (LTE for short) network includes an Evolved Universal Terrestrial Radio Access Network (Evolved Universal Terrestrial Radio Access Network, E-UTRAN for short) and a corresponding Core Network (Core Network, CN for short). The E-UTRAN includes an evolved base station (evolved Node B, eNB for short). CN includes MME and Serving Gateway (Serving Gateway, S-GW for short) and so on. The eNB and CN are connected through the S1 interface, and the eNBs can be connected through the X2 interface. One eNB can manage one or more cells (Cell). The interface between the UE and the cell is called Uu interface (or air interface). [0003]...

Claims

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Application Information

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IPC IPC(8): H04W76/02
CPCH04W36/08H04W92/20H04W76/15H04W36/00695
Inventor 方建民
Owner ZTE CORP