Method, mobility management unit and gateway unit for limiting access and communication of machine type communication (MTC) equipment
一种移动管理单元、设备接入的技术,应用在连接管理、接入限制、无线通信等方向
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Embodiment 1
[0074] Embodiment 1: This embodiment is a process in which the MME obtains the allowed time period of the MTC UE when the MTC UE is attached.
[0075] Wherein, the allowed time period in the present invention is a predefined time period for the MTC device, and the MTC device is only allowed to access the network or perform data transmission within the time period.
[0076] image 3 It is a flowchart of the method of the present invention, specifically comprising the following steps:
[0077] Step 301: The MTC UE sends an attach request message to the eNodeB. When the UE has a GUTI, it needs to carry the GUTI, and when the UE does not have a GUTI, it needs to carry the IMSI;
[0078] Step 302: The eNodeB derives the MME attached to the UE according to the GUTI. If the MME cannot be directly derived, a new MME can be selected through the "MME selection function", and the attach message is forwarded to the new MME;
[0079] Step 303: If the MME changes or attaches for the firs...
Embodiment 2
[0085] Embodiment 2: This embodiment is a process in which the MME judges and rejects the attachment according to the obtained allowable time period. Figure 4 It is a flowchart of the method of the present invention, specifically comprising the following steps:
[0086] Step 401: The MTC UE sends an attach request message to the eNodeB. When the UE has a GUTI, it needs to carry the GUTI, and when the UE does not have a GUTI, it needs to carry the IMSI;
[0087] Step 402: The eNodeB derives the MME attached to the UE according to the GUTI. If the MME cannot be directly derived, a new MME can be selected through the "MME selection function", and the attach message is forwarded to the new MME;
[0088] Step 403: If the MME has saved the allowed time period information of the MTC UE, then the MME judges according to the allowed time period, and sends an attach rejection message within the non-allowed time period. The message may carry a rejection reason value, which is used to i...
Embodiment 3
[0093] Embodiment 3: This embodiment is a process in which the MME judges and refuses to update the tracking area according to the obtained allowed time period. Figure 5 It is a flowchart of the method of the present invention, specifically comprising the following steps:
[0094] Step 501: The MTC UE meets the TAU trigger condition and triggers the tracking area update procedure;
[0095] Step 502: The MTC UE initiates a TAU request message to the eNodeB, carrying an instruction to select a network to the eNodeB;
[0096] Step 503: The eNodeB derives the MME attached to the UE before. If the MME cannot be directly derived, a new MME can be selected through the "MME selection function", and the attach message is forwarded to the new MME;
[0097] Step 504: If the MME has saved the allowed time period information of the MTC UE, the MME judges according to the allowed time period, and sends a tracking area update rejection message within the non-allowed time period. The messag...
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