Method for triggering switching and transferring identification information of mobile management entity pool and equipment
A technology for identifying information and switching request messages, applied in wireless communication, electrical components, network topology, etc.
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Embodiment 1
[0091] Such as Figure 6A Shown:
[0092] Step 1: After the RN switches to a new donor cell, if it finds that it has entered a new TA that does not belong to the currently stored TA list, perform TAU.
[0093] Step 2: MME assigns new GUTI and TAI list to RN.
[0094] Step 3: RN judges whether the MME Group ID has changed according to the newly allocated GUTI, if not, RN establishes an S1 interface with the MME of the new MME Pool;
[0095] Step 4: The RN switches the connected UE it serves to a new MME Pool: the RN sends a Handover Required message to the MME of each connected UE. The target identifier in the Handover Required message is set to the RN identifier, that is, the Global eNB ID and TAI of the RN.
[0096] The module that RN receives GUTI may be independent of the module that initiates S1 handover. In this case, the module that receives GUTI needs to notify the module that initiated S1 handover after judging the change of MME Pool, or the module that receives GUT...
Embodiment 2
[0099] Such as Figure 6B Shown:
[0100] Step 1-Step 2: When the RN is handed over, the target DeNB puts the MME group identity it belongs to in the handover command and sends it to the RN through the source DeNB, and the RN returns an RRC connection reconfiguration complete message.
[0101] The DeNB can notify the MME group identity to all the entities handed over to itself, or only notify the MME group identity to the entity handed over to the Donor cell it manages, or notify the MME group identity when it knows that the handover entity is an RN.
[0102] The method for the DeNB to know that the handover entity is the RN may be obtained from the handover request sent by the source base station.
[0103] Step 3: After the RN switches to the target DeNB, check whether the MME Group ID to which the current DeNB belongs is the same as the MME Group ID to which the DeNB before switching belongs. If not, the RN establishes an S1 interface with the MME of the new MME Pool;
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Embodiment 3
[0108] Such as Figure 6C Shown:
[0109] Step 1-Step 2: When the RN is handed over, the target DeNB sends a connection reconfiguration message to the RN through the source DeNB, and the RN returns an RRC connection reconfiguration complete message.
[0110] Step 3: The RN reports the relevant information of the DeNB to the OAM, such as the Global eNB ID (base station identifier) or eNB name (base station name) of the DeNB, and then the OAM downloads the MME group identifier to which the DeNB belongs to the RN.
[0111] Step 4: The RN checks whether the MME Group ID to which the current DeNB belongs is the same as the MME Group ID to which the DeNB before handover belongs. If not, the RN establishes an S1 interface with the MME of the new MME Pool;
[0112] Step 5: The RN switches the serving UE in the connected state to a new MME Pool: the RN sends a Handover Required message to the MME of each UE in the connected state. The "target identity" in the Handover Required mes...
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