Delay constrained use of automatic repeat request for multi-hop communication systems
First Claim
Patent Images
1. A relay node, comprising:
- an access unit configured to communicate directly or indirectly with a user equipment;
a relay unit configured to communicate with a relay node or a mesh node; and
a processor unit configured to allow an automatic repeat request protocol for the access unit and to disable or limit the automatic repeat request protocol for the relay unit.
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Accused Products
Abstract
Minimization of delay due to automatic repeat requests in a multi-hop communication system can be accomplished to optimize the performance of delay-constrained applications such as voice over internet protocol (VoIP). The protocol described with relation to such embodiments can reduce the possible retransmissions to the first hop (the hop connecting a mobile node to a relay node). Thus, certain embodiments of the present invention can protect the most error-prone link while reducing the overall delay experienced by the user.
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Citations
35 Claims
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1. A relay node, comprising:
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an access unit configured to communicate directly or indirectly with a user equipment; a relay unit configured to communicate with a relay node or a mesh node; and a processor unit configured to allow an automatic repeat request protocol for the access unit and to disable or limit the automatic repeat request protocol for the relay unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 32, 33)
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16. A relay node, comprising:
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access means for communicating directly or indirectly with a user equipment; relay means for communicating with a relay node or a mesh node; and processor means for allowing an automatic repeat request protocol for the access unit and disabling or limiting the automatic repeat request protocol for the relay unit.
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17. A method, comprising:
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providing a relay node in direct or indirect communication with a user equipment and a relay network or a mesh network, wherein the relay network or mesh network provides access to a internet protocol backbone; configuring the relay node to use an automatic repeat request protocol for communication with the user equipment; and configuring the relay node not to use or to limit use of the automatic repeat request protocol for communicating with the relay network or the mesh network. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 34, 35)
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30. A system, comprising:
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a user equipment; a relay network or a mesh network configured to provide access to an internet protocol backbone; and a relay node configured to communicate directly or indirectly with the user equipment, configured to communicate with the relay network or mesh network, and configured to use an automatic repeat request protocol for communication with the user equipment and not to use or to limit use of the automatic repeat request protocol for communication with the relay network or mesh network.
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31. A computer program embodied on a computer readable medium, encoding instructions for performing a method, comprising:
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initiating a relay node in direct or indirect communication with a user equipment and a relay network or a mesh network, wherein the relay network or mesh network provides access to a internet protocol backbone; configuring the relay node to use an automatic repeat request protocol for communication with the user equipment; and configuring the relay node not to use or to limit use of the automatic repeat request protocol for communicating with the relay network or the mesh network.
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Specification