Communicating Cell Restriction Status Information between Radio Access Network Nodes
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Abstract
A cellular radio communications network includes a core network coupled to a radio access network (RAN) that has multiple RAN nodes for communication with mobile radio terminals. Each of the multiple RAN nodes serves one or more cells. At least one cell associated with a first RAN node is in a restricted or reserved access state in which access to the one cell is restricted for at least some mobile radio terminals. The first RAN node sends a message to a second RAN node to inform the second RAN node of that restricted access cell. The fact that the restricted status of the one cell has changed is detected. A global message tha is not related to a specific mobile terminal is generated that includes information that the restricted status of the one cell has changed. The first RAN node sends the global message to the second RAN node to inform the second RAN node of the change in the restricted status of the one cell.
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Citations
40 Claims
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1-20. -20. (canceled)
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21. A method in a cellular radio communications network including a core network coupled to a radio access network (RAN) having multiple RAN nodes for communicating with mobile radio terminals, each of the multiple RAN nodes serving one or more cells, the method comprising:
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establishing that at least one cell associated with a first RAN node is in a restricted or reserved access state in which access to the one cell is restricted for at least some mobile radio terminals; sending, by the first RAN node, a message to a second RAN node to inform the second RAN node of that restricted access cell; determining that the restricted status of the one cell has changed; generating a global message not related to a specific mobile terminal that includes information that the restricted status of the one cell has changed; and sending, by the first RAN node, the global message to the second RAN node to inform the second RAN node of the change in the restricted status of the one cell. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A radio access network (RAN) node for use in a cellular radio communications network including a core network coupled to a radio access network (RAN) having multiple RAN nodes for communicating with mobile radio terminals, each of the multiple RAN nodes serving one or more cells, the RAN node comprising one or more circuits operative to:
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establish that at least one cell associated with the RAN node is in a restricted or reserved access state in which access to the one cell is restricted for at least some mobile radio terminals; send a message to another RAN node to inform the other RAN node of that restricted access cell; determine that the restricted status of the one cell has changed; generate a global message not related to a specific mobile terminal that includes information that the restricted status of the one cell has changed; and send the global message to the other RAN node to inform the other RAN node of the change in the restricted status of the one cell. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40)
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Specification