Method, system and equipment for conducting switching
A post-handover and pre-handover technology, applied in the direction of electrical components, wireless communication, etc., can solve the problems of increased switching frequency and times, increased UE communication, interruption, etc., and achieve the effect of reducing the risk of communication interruption
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example 1
[0251] Example 1. When the user moves from the coverage of the macro eNB to the coverage of the local eNB, the network needs to replace the user plane transmission node with the Local eNB.
[0252] Such as Figure 17 As shown, the method for switching all control plane bearers from the macro cell to the local cell in the embodiment of the present invention includes the following steps:
[0253] 1. The Macro eNB performs measurement configuration on the UE, and the UE subsequently performs measurement according to the received measurement configuration information;
[0254] 2. On the uplink resource allocated by the Macro eNB to the UE, the UE reports the measurement result. The measurement result will be used to assist the Macro eNB in handover decision;
[0255] 3. The Macro eNB makes a measurement decision. If the Macro eNB decides to perform handover, proceed to the subsequent steps;
[0256] 4. The Macro eNB sends a user plane handover request to the Local eNB, carry...
example 2
[0295] Example 2: When the user moves from the coverage area of the macro eNB to the coverage area of the local eNB, the network may switch part of bearers of the user plane to the local eNB. The separation of the user plane part and the control plane part means that part of the UE's user plane bearer is connected to the same eNB as the control plane, and the rest of the user plane part is bearer in other eNBs. The reason why the part of the user plane is separated from the control plane may be that, according to the handover algorithm, the Macro eNB only wants to switch the bearer part of the UE to other eNBs; or the local eNB that is handed over cannot accept all the user plane bearers that the Macro eNB wants to switch over; Or a combination of both.
[0296] Among them, Example 2 has the following differences compared with Example 1:
[0297] In step 4, what the Macro eNB sends to the Local eNB is not to switch all the E-RAB bearer information of the UE: that is, the ...
example 3
[0302] Example 3: When the user moves out of the coverage of the Local eNB, the network needs to replace the user plane transmission node with the Macro eNB.
[0303] Such as Figure 18 As shown, the method for switching from a local cell to a macro cell in the embodiment of the present invention includes the following steps:
[0304] in execution Figure 18 Before the process, UE maintains connection with Macro eNB and Local eNB at the same time, its control plane connection is located in Macro eNB, and all or part of the bearer of user plane is located in Local eNB.
[0305] 1. The Macro eNB performs measurement configuration on the UE, and the UE subsequently performs measurement according to the received measurement configuration information;
[0306] 2. On the uplink resource allocated by the Macro eNB to the UE, the UE reports the measurement result. The measurement result will be used to assist the Macro eNB in handover decision;
[0307] 3. The Macro eNB makes a ...
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