Method and apparatus for efficient roaming among communication system
First Claim
1. A method for efficient roaming among at least a home communication sub-system and a local communication sub-system, wherein the home communication sub-system comprises a home terminal from which a portable communication device normally receives messages within a first geographic area, and wherein the local communication sub-system comprises a local terminal that transmits within a second geographic area, the method comprising, in the home communication sub-system, the steps of:
- receiving a message for transmission to the portable communication device;
determining that the portable communication device is roaming within the local communication sub-system; and
automatically providing the message and a subscriber record associated with the portable communication device to the local communication sub-system without first receiving a request for the subscriber record from the local communication sub-system.
4 Assignments
0 Petitions
Accused Products
Abstract
A communication system (100) for providing messages to a pager (140) includes a first sub-system (105) having a home terminal (125) for normally transmitting the messages to the pager (140) in a first geographic region. The communication system (100) also includes a second sub-system (115) having a local terminal (135) for transmitting the messages to the pager (140) when the pager (140) has roamed into a second geographic region. The local terminal (135) of the second sub-system (115) includes a data port (505) for receiving a message for transmission to the pager (140), a controller (510) for determining that the pager is roaming, and a requester (580) for automatically transmitting a request for a subscriber record associated with the pager (140) from the first sub-system (105) in response to determining that the pager (140) is roaming.
27 Citations
16 Claims
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1. A method for efficient roaming among at least a home communication sub-system and a local communication sub-system, wherein the home communication sub-system comprises a home terminal from which a portable communication device normally receives messages within a first geographic area, and wherein the local communication sub-system comprises a local terminal that transmits within a second geographic area, the method comprising, in the home communication sub-system, the steps of:
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receiving a message for transmission to the portable communication device; determining that the portable communication device is roaming within the local communication sub-system; and automatically providing the message and a subscriber record associated with the portable communication device to the local communication sub-system without first receiving a request for the subscriber record from the local communication sub-system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A communication system for providing messages to a portable communication device, the communication system comprising:
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a local sub-system comprising a local terminal for transmitting the messages to the portable communication device when the portable communication device has roamed into a first geographic area associated with the local sub-system; and a home sub-system comprising a home terminal for normally transmitting the messages to the portable communication device in a second geographic area associated with the home sub-system, the home sub-system comprising; a data port for receiving a message for transmission to the portable communication device; a controller coupled to the data port for determining that the portable communication device is roaming within the local sub-system; and a forwarder coupled to the controller for automatically providing the message and a subscriber record associated with the portable communication device to the local sub-system in response to determining that the portable communication device is roaming and without first receiving a request for the subscriber record from the local sub-system. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification