System and method for reverse handover in mobile mesh Ad-Hoc networks
First Claim
1. A system for managing handovers in a mobile network, comprising:
- an access domain;
an ad-hoc domain that is in communication with the access domain, wherein the ad-hoc domain enables wireless communication with a first node operating as a mobile trunk node in the ad-hoc domain;
a first access connection that enables wireless communication between the mobile trunk node and the access domain, wherein the mobile trunk node enables other nodes in the ad-hoc domain to wirelessly communicate with the access domain; and
if the first node leaves the ad-hoc domain, handing over the operation of the mobile trunk node to a second node in the ad-hoc domain, wherein the second node operating as the mobile trunk node employs the first access connection to communicate with the access domain and enables the remaining nodes in the ad-hoc domain to wirelessly communicate with the access domain.
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Abstract
A method is provided for solving the mobility of a mobile trunk node (MTN) within an operated assisted mobile mesh local Ad-Hoc network. The method provides a reverse handover (RHO) when there exists another node within the local Ad-Hoc network, which is able to assume the logical role of a MTN. Before the first MTN performs the handover, existence of the other suitable MTN is determined. Where a suitable MTN is determined, the MTN functions are transferred to the new MTN before handover of the first MTN to a new cell of a cellular-based network. Upon transfer of the MTN functions to the new MTN, Ad-Hoc traffic is relayed to and from the local Ad-Hoc network via the new MTN. Enhanced tunneling is proposed to minimize network traffic delays during the handover. The reverse handover also enables the first MTN to preserve its original merely Ad-Hoc local network connection.
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Citations
32 Claims
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1. A system for managing handovers in a mobile network, comprising:
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an access domain;
an ad-hoc domain that is in communication with the access domain, wherein the ad-hoc domain enables wireless communication with a first node operating as a mobile trunk node in the ad-hoc domain;
a first access connection that enables wireless communication between the mobile trunk node and the access domain, wherein the mobile trunk node enables other nodes in the ad-hoc domain to wirelessly communicate with the access domain; and
if the first node leaves the ad-hoc domain, handing over the operation of the mobile trunk node to a second node in the ad-hoc domain, wherein the second node operating as the mobile trunk node employs the first access connection to communicate with the access domain and enables the remaining nodes in the ad-hoc domain to wirelessly communicate with the access domain. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for managing a handover in a mobile network, comprising:
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enabling a wireless communication between an ad-hoc domain and an access domain with a first node operating as a mobile trunk node in the ad-hoc domain;
accessing a first connection between the mobile trunk node and the access domain, wherein the mobile trunk node enables other nodes in the ad-hoc domain to wirelessly communicate with the access domain; and
if the first node leaves the ad-hoc domain, handing over the operation of the mobile trunk node to a second node in the ad-hoc domain, wherein the second node operating as the mobile trunk node employs the first access connection to communicate with the access domain and enables the remaining nodes in the ad-hoc domain to wirelessly communicate with the access domain. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. An apparatus for managing a handover in a mobile network, comprising:
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(a) a network interface for wirelessly communicating between an ad-hoc domain and an access domain with a first node operating as a mobile trunk node in the ad-hoc domain;
(b) a transceiver for accessing a first connection between the mobile trunk node and the access domain, wherein the mobile trunk node enables other nodes in the ad-hoc domain to wirelessly communicate with the access domain; and
(c) a processor for enabling handing over the operation of the mobile trunk node to a second node in the ad-hoc domain, if the first node leaves the ad-hoc domain, wherein the second node operating as the mobile trunk node employs the first access connection to communicate with the access domain and enables the remaining nodes in the ad-hoc domain to wirelessly communicate with the access domain. - View Dependent Claims (21, 22, 23)
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24. An method for managing a handover in an ad-hoc domain of a mobile network, comprising:
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(a) communicating a handover indication signal from a first trunk node to at least one other node in the ad-hoc domain, wherein the first trunk node communicates with an access domain over a first access connection and the operation of the first trunk node enables other nodes in the ad-hoc domain to wirelessly communicate with the access domain;
(b) employing one other node in the ad-hoc domain to operate as a second trunk node;
(c) if the first trunk node leaves the ad-hoc domain, performing a handover from the first trunk node to the second trunk node, wherein the second trunk node communicates with the access domain over the first access connection with the access domain; and
(d) employing the operation of the second trunk node to enable the remaining nodes in the ad-hoc domain to wirelessly communicate with the access domain. - View Dependent Claims (25, 26, 27, 28)
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29. A method for managing handovers in a mobile network, comprising:
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(a) analyzing radio measurement information to determine if handover criteria are fulfilled for a first mobile trunk node that is leaving an ad-hoc domain, wherein the first mobile trunk node enables other nodes in the ad-hoc domain to communicate with the access domain;
(c) analyzing radio resource information to select one node in the ad-hoc domain to operate as a second mobile trunk node; and
(d) performing a handover between a first access connection and a second access connection in communication with an access domain, wherein the selected second mobile trunk node operates trunk node logical functionality from the first mobile trunk node. - View Dependent Claims (30)
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31. A computer readable medium that includes executable instructions for performing actions, comprising:
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(a) enabling a wireless communication between an ad-hoc domain and an access domain with a first node operating as a mobile trunk node in the ad-hoc domain;
(b) accessing a first connection between the mobile trunk node and the access domain, wherein the mobile trunk node enables other nodes in the ad-hoc domain to wirelessly communicate with the access domain; and
(c) if the first node leaves the ad-hoc domain, handing over the operation of the mobile trunk node to a second node in the ad-hoc domain, wherein the second node operating as the mobile trunk node employs the first access connection to communicate with the access domain and enables the remaining nodes in the ad-hoc domain to wirelessly communicate with the access domain. - View Dependent Claims (32)
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Specification