| 摘要 |
A first base station is operated by a first service provider and exchanges first information with first users over first wireless communication links. A mobile switching center provides mobile telephone service. An Internet access system provides Internet access service. A data system provides a data service. An Ethernet backhaul system uses an Ethernet format to exchange the first information between the first base station and the mobile switching center, Internet access system, and data system. There is a second service provider that is different from the first service provider, that operates a service system, and that operates a second base station that is co-located with the first base station and that exchanges second information with second users over second wireless communication links. The Ethernet backhaul system uses the Ethernet format to exchange the second information between the second base station and the service system of the second service provider.
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