Relaying information within an ad-hoc cellular network
First Claim
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1. A method for relaying information within an ad-hoc network, the method comprising the steps of:
- determining if a first mobile unit has recently been instructed to relay information to/from a second mobile unit;
determining that the first mobile unit will no longer be capable of relaying information to the second mobile unit; and
based on the determination that the first mobile unit has recently been instructed to relay, and additionally based on the determination that the first mobile unit will no longer be capable of relaying information, sending a deregistration message from the first mobile unit to the second mobile unit, causing the second mobile unit to reregister with infrastructure equipment.
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Abstract
A registration from a subscriber is delivered to the cellular network via an ad hoc network. Based on registration information, several return paths are prepared for delivery of a page from the cellular network to the subscriber regardless of the initial or final coverage state of the subscriber and regardless of the final coverage or operational state of its assigned relays.
224 Citations
14 Claims
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1. A method for relaying information within an ad-hoc network, the method comprising the steps of:
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determining if a first mobile unit has recently been instructed to relay information to/from a second mobile unit;
determining that the first mobile unit will no longer be capable of relaying information to the second mobile unit; and
based on the determination that the first mobile unit has recently been instructed to relay, and additionally based on the determination that the first mobile unit will no longer be capable of relaying information, sending a deregistration message from the first mobile unit to the second mobile unit, causing the second mobile unit to reregister with infrastructure equipment. - View Dependent Claims (2, 3)
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4. A method for relaying information within an ad-hoc network, the method comprising the steps of:
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receiving a message from a second mobile unit relayed through a first mobile unit via an ad-hoc air interface;
determining that information needs to be transmitted to the second mobile unit;
determining if the first mobile unit is currently utilizing a traffic channel; and
transmitting the information to the first mobile unit to be relayed to the second mobile unit;
wherein the information is transmitted over the traffic channel if the first mobile unit is currently utilizing the traffic channel, otherwise the information is transmitted over a paging channel. - View Dependent Claims (5, 6, 7)
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8. A mobile unit comprising:
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a receiver having information destined to a second mobile unit as an input;
a transmitter outputting the information to the second mobile unit; and
logic circuitry, determining if the mobile unit is about to power down, and notifying the second mobile unit when the mobile unit is about to power down. - View Dependent Claims (9, 10, 11)
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12. Infrastructure equipment comprising:
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a receiver receiving a message from a second mobile unit relayed through a first mobile unit via an ad-hoc air interface;
logic circuitry determining that information needs to be transmitted to the second mobile unit, the logic circuitry additionally determining if the first mobile unit is currently utilizing a traffic channel; and
transmitting circuitry outputting the information to the first mobile unit to be relayed to the second mobile unit;
wherein the information is transmitted over the traffic channel if the first mobile unit is currently utilizing the traffic channel, otherwise the information is transmitted over a paging channel. - View Dependent Claims (13, 14)
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Specification