Layer 2 integrated access scheme
First Claim
1. An L2 integrated access system, comprising:
- L2IA (L2 Integrated Access) subscribers for supporting communications between user terminals user various communication media, each L2IA subscriber having an L2IA identifier for uniquely identifying each L2IA subscriber within the L2 integrated access system and a terminal ID for uniquely identifying each L2IA subscriber within each communication medium associated with each L2IA subscriber; and
an L2IA relay network formed by;
a plurality of relay units to be connected with the L2IA subscribers through various communication media and relaying communications between the L2IA subscribers through the L2IA relay network, each relay unit being provided in correspondence to one communication medium such that at least one relay unit is provided in correspondence to each communication medium, and each relay unit having an L2IA relay ID for uniquely identifying each relay unit within the L2IA relay network and a terminal ID for uniquely identifying each relay unit within each communication medium associated with each relay unit; and
at least one LPR (Location and Preference Register) for registering an RLD (Registered Location Data) indicating a terminal ID of an L2IA subscriber and an L2IA relay ID of a relay unit for each potentially available communication medium in correspondence to the L2IA identifier of each L2IA subscriber, such that the relay unit relays the communications between the L2IA subscribers according to the RLDs registered in correspondence to the L2IA identifiers of the L2IA subscribers.
3 Assignments
0 Petitions
Accused Products
Abstract
An L2 integrated access (L2IA) system is constructed from: L2IA subscribers for supporting communications between user terminals using various communication media, each L2IA subscriber having an L2IA identifier for uniquely identifying each L2IA subscriber within the L2 integrated access system and a terminal ID for uniquely identifying each L2IA subscriber within each communication medium associated with each L2IA subscriber; and an L2IA relay network formed by relay units to be connected with the L2IA subscribers through various communication media and relaying communications between the L2IA subscribers through the L2IA relay network, each relay unit being provided in correspondence to one communication medium such that at least one relay unit is provided in correspondence to each communication medium, and each relay unit having an L2IA relay ID for uniquely identifying each relay unit within the L2IA relay network and a terminal ID for uniquely identifying each relay unit within each communication medium associated with each relay unit, and an LPR (Location and Preference Register) for registering an RLD (Registered Location Data) indicating a terminal ID of an L2IA subscriber and an L2IA relay ID of a relay unit for each potentially available communication medium in correspondence to the L2IA identifier of each L2IA subscriber, such that the relay unit relays the communications between the L2IA subscribers according to the RLDs registered in correspondence to the L2IA identifies of the L2IA subscribers.
35 Citations
15 Claims
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1. An L2 integrated access system, comprising:
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L2IA (L2 Integrated Access) subscribers for supporting communications between user terminals user various communication media, each L2IA subscriber having an L2IA identifier for uniquely identifying each L2IA subscriber within the L2 integrated access system and a terminal ID for uniquely identifying each L2IA subscriber within each communication medium associated with each L2IA subscriber; and
an L2IA relay network formed by;
a plurality of relay units to be connected with the L2IA subscribers through various communication media and relaying communications between the L2IA subscribers through the L2IA relay network, each relay unit being provided in correspondence to one communication medium such that at least one relay unit is provided in correspondence to each communication medium, and each relay unit having an L2IA relay ID for uniquely identifying each relay unit within the L2IA relay network and a terminal ID for uniquely identifying each relay unit within each communication medium associated with each relay unit; and
at least one LPR (Location and Preference Register) for registering an RLD (Registered Location Data) indicating a terminal ID of an L2IA subscriber and an L2IA relay ID of a relay unit for each potentially available communication medium in correspondence to the L2IA identifier of each L2IA subscriber, such that the relay unit relays the communications between the L2IA subscribers according to the RLDs registered in correspondence to the L2IA identifiers of the L2IA subscribers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
(a) setting up a connection from said one L2IA subscriber to one relay unit provided in correspondence to said one communication medium which is appropriate for said one L2IA subscriber;
(b) specifying the L2IA identifier of said another L2IA subscriber from said one L2IA subscriber to said one relay unit;
(c) setting up a connection from said one relay unit to another relay unit provided in correspondence to said another communication medium which is appropriate for said another L2IA subscriber according to one RLD registered by the LPR in correspondence to the L2IA identifier of said another L2IA subscriber specified by the step (b); and
(d) setting up a connection from said another relay unit to said another L2IA subscriber according to said one RLD.
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12. A method of dial-out connection from one L2IA subscriber provided at a user'"'"'s home network associated with one communication medium to another L2IA subscriber provided at one user terminal associated with another communication medium in the L2 integrated access system of claim 1, the method comprising the steps of:
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(a) setting up a connection from said one L2IA subscriber to one relay unit provided in correspondence to said one communication medium which is appropriate for said one L2IA subscriber;
(b) specifying the L2IA identifier of said another L2IA subscriber from said one L2IA subscriber to said one relay unit;
(c) setting up a connection from said one relay unit to another relay unit provided in correspondence to said another communication medium which is appropriate for said another L2IA subscriber according to one RLD registered by the LPR in correspondence to the L2IA identifier of said another L2IA subscriber specified by the step (b); and
(d) setting up a connection from said another relay unit to said another L2IA subscriber according to said one RLD.
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13. A method of handover by one L2IA subscriber provided at a user terminal which is communicating with another L2IA subscriber provided at a user'"'"'s home network, for changing communication media to be used for communication with said another L2IA subscriber from a first communication medium to a second communication medium, in the L2 integrated access system of claim 1, the method comprising the steps of:
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(a) requesting the handover from said one L2IA subscriber to a first relay unit provided in correspondence to the first communication medium;
(b) setting up a connection from said one L2IA subscriber to a second relay unit provided in correspondence to the second communication medium which is appropriate for said one L2IA subscriber;
(c) specifying the L2IA identifier of said another L2IA subscriber from said one L2IA subscriber to the second relay unit;
(d) setting up a connection from the second relay unit to a third relay unit provided in correspondence to a communication medium associated with the user'"'"'s home network which is appropriate for said another L2IA subscriber according to one RLD registered by the LPR in correspondence to the L2IA identifier of said another L2IA subscriber specified by the step (c); and
(e) disconnecting a connection between said one L2IA subscriber and the first relay unit as well as a connection between the first relay unit and the third relay unit.
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14. A method of handover by one L2IA subscriber provided at a user terminal which is communicating with another L2IA subscriber provided at a user'"'"'s home network, for changing communication media to be used for communication with said another L2IA subscriber from a first communication medium to a second communication medium, in the L2 integrated access system of claim 1, the method comprising the steps of:
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(a) requesting the handover from said one L2IA subscriber to a first relay unit provided in correspondence to the first communication medium;
(b) obtaining one RLD registered by the LPR in correspondence to the L2IA identifier of said one L2IA subscriber at the first relay unit;
(c) setting up a connection to said one L2IA subscriber from a second relay unit provided in correspondence to the second communication medium which is appropriate for said one L2IA subscriber and which is indicated by said one RLD;
(d) setting up a connection from the first relay unit to the second relay unit so that communication data flows from the first relay unit to said one L2IA subscriber via the second relay unit;
(e) notifying the second relay unit from the first relay unit to a third relay unit provided in correspondence to a communication medium associated with the user'"'"'s home network which is appropriate for said another L2IA subscriber;
(f) setting up a connection between the third relay unit and the second relay unit and start transmitting the communication data from the third relay unit to the second relay unit while stop transmitting the communication data from the third relay unit to the first relay unit; and
(g) disconnecting a connection between said one L2IA subscriber and the first relay unit, a connection between the first relay unit and the second relay unit, and a connection between the first relay unit and the third relay unit.
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15. A method of re-connection in the L2 integrated access system of claim 1, comprising the steps of:
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(a) storing in one L2IA subscriber provided at a user'"'"'s home network a communication state for a communication with another L2IA subscriber provided at a user terminal when said another L2IA subscriber interrupts the communication; and
(b) resuming the communication between said one L2IA subscriber and said another L2IA subscriber from the communication state stored by the step (a), when said another L2IA subscriber carries out a re-connection to said one L2IA subscriber.
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Specification