Radio communication system, base station, gateway, and radio communication method
radio communication technology, applied in the field of radio communication systems, a base station, a gateway, and a radio communication method, can solve the problems of increasing opex (operational expenditure), preventing the continuation of service, and manual operation of operators, so as to ensure the security of a radio communication system, the effect of reducing manual operations
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first exemplary embodiment
[0095]The schematic configuration of the present exemplary embodiment is first described with reference to FIG. 4.
[0096]Referring to FIG. 4, eNode B 10 according to the present exemplary embodiment includes transmission unit 11A that transmits to MME 20 messages containing information of the origination addresses of neighboring eNode B 10. The information of the origination addresses of neighboring eNode B 10 can conceivably be information that is set in eNode B 10 by the manual operation of an operator beforehand, but is not limited to such information.
[0097]MME 20 according to the present exemplary embodiment includes reception unit 21A that receives messages from eNode B 10 that contain information of the origination addresses of neighboring eNode B 10 and transmission unit 22A that transmits to S-GW 30 messages that contain information of the origination addresses of neighboring eNode B 10.
[0098]S-GW 30 according to the present exemplary embodiment includes reception unit 31A th...
example 1
of a Handover Operation
[0180]The operation of the present example is next described with reference to FIG. 10.
[0181]In FIG. 10, parts identical to FIG. 2 are given the same reference numbers.
[0182]In FIG. 10, it is assumed that the information of the origination address of Source eNode B 10-S and the origination addresses of neighboring eNode B 10 have already been saved in memory unit 34A of S-GW 30 by means of any of the above-described Examples 1-4 of the operation of transmitting the origination address of eNode B 10.
[0183]Referring to FIG. 10, uplink packet data are received in S-GW 30 from Target eNode B 10-T in Step 2307 through the same processes as in FIG. 2.
[0184]At this time, information of the origination addresses of neighboring eNode B 10 of Source eNode B 10-S that have the potential of becoming Target eNode B 10-T is also saved in memory unit 34A of S-GW 30.
[0185]As a result, control unit 33A of S-GW 30 is able to verify the safety of the received packet data without...
example 2
of a Handover Operation
[0190]The operation of the present example is next described with reference to FIG. 11 and FIG. 12.
[0191]In FIG. 11 and FIG. 12, parts that are identical to FIG. 2 and parts common to FIG. 11 and FIG. 12 are given the same reference numbers.
[0192]In FIG. 11 and FIG. 12, it is assumed that information of the origination address of Source eNode B 10-S and the origination addresses of neighboring eNode B 10 is saved in memory unit 34A of S-GW 30 by means of any of Examples 1-4 of the operation of transmitting the origination address of eNode B 10 described hereinabove.
[0193]Referring to FIG. 11, uplink packet data are received in S-GW 30 from Target eNode B 10-T in Step 2307 through the same processes as FIG. 2.
[0194]In Step 801, control unit 33A of S-GW 30 next collates the origination address of the received packet data with origination addresses that are saved in memory unit 34A. In this case, it is assumed that an origination address that matches the originat...
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