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A method, base station, UE and MME for dual connection operation

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

Active Publication Date: 2022-07-01
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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  • A method, base station, UE and MME for dual connection operation
  • A method, base station, UE and MME for dual connection operation
  • A method, base station, UE and MME for dual connection operation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] Step 100: The UE is in dual connectivity of the Split bearer type, eNB1 is the MeNB, and eNB2 is the SeNB. The MeNB initiates a SeNB Modification process (existing process), and modifies the dual connectivity of the Split bearer type to the dual connectivity of the MCG / SCG bearer type.

[0070] Step 101 , the UE is in dual connectivity of the MCG / SCG bearer type, eNB1 is the MeNB, and eNB2 is the SeNB. According to the measurement report reported by the UE, eNB1 understands that the UE detects that the signal of eNB1 is getting weaker and weaker, while the signal of eNB2 is better, and eNB1 decides to trigger the identity swap of the UE's MeNB and SeNB. eNB1 sends a HANDOVER REQUEST (handover request) message to eNB2, which carries the MeNB and SeNB identity exchange indication.

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

Embodiment 2

[0079] Step 201, the UE is in dual connectivity of MCG / SCG bearer type, eNB1 is the MeNB, and eNB2 is the SeNB. According to the measurement report reported by the UE, eNB1 understands that the UE detects that the signal of eNB1 is getting weaker and weaker, while the signal of eNB2 is better, and eNB1 decides to trigger the identity swap of the UE's MeNB and SeNB. eNB1 sends the 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 (S1 interface application protocol ID of the UE on the old MME side) (MME UE S1AP 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 MeNB and SeNB identity exchange of the UE. eNB2 agrees to the reques...

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Abstract

A dual-connection operation method includes: a primary base station sends a primary base station and a secondary base station identity exchange request message to a secondary base station; after the primary base station receives an acknowledgement message from the secondary base station, it sends a radio resource control protocol to the UE The connection reconfiguration message carries the identity exchange indication information of the primary base station and the secondary base station. This solution can enable the UE to achieve lossless interchange between MeNB and SeNB when performing dual-connection operation.

Description

technical field [0001] The present application relates to, but is not limited to, the field of communication technologies, and more particularly, to a dual-connection operation method, a base station, a user equipment (UE for short) and a mobile management entity (MME for short). Background technique [0002] A Long Term Evolution (Long Term Evolution, LTE for short) network includes an 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 Node B (evolved Node B, eNB for short). CN includes MME and Serving Gateway (Serving Gateway, S-GW for short) and so on. The eNB and the 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 (Cells). The interface between the UE and the cell is called a Uu interface (or an air interface). [0003] Due to the scarcity of spectrum resources and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W76/15H04W76/25
CPCH04W36/08H04W92/20H04W76/15H04W36/00695
Inventor 方建民
Owner ZTE CORP