Method, node and arrangement in a communication network
First Claim
1. Method for routing a packet within a Bluetooth network from a first node via a forwarding node to a second node, the packet having a first representation on a Baseband layer as a Baseband packet and a second representation on a Logical Link Control and Adaptation Layer Protocol, L2CAP, layer as a L2CAP packet, the L2CAP layer receding on a higher layer than the Baseband layer, the method comprising the steps of:
- indicating (601) in a header of the Baseband packet that the packet should be forwarded;
noting (602) relevant routing information in a header of the Baseband packet;
transmitting (603) the packet from the first node to the forwarding node;
analysing (604) the indication and the routing information;
short-circuiting (605) the L2CAP layer of the packet;
forwarding (606) the packet to the second node (G) according to the routing information.
1 Assignment
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Accused Products
Abstract
The present invention relates to a method, arrangement and node for routing packets within a Bluetooth network. More particularly it relates to the problem of high level routing within Bluetooth networks, requiring a lot of processing overhead and data buffering.
The problem is solved by means of a method for routing a packet, from a first node, via the forwarding node to a second node, within a Bluetooth network. In the first node, a forwarding indicator and routing information is noted in a header of the Baseband packet. The packet is transferred to the forwarding node which analyses the indicator and the routing information in the Baseband header. The packet is forwarded without unpacking and analysing the information of protocol layers higher than the Baseband layer.
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Citations
34 Claims
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1. Method for routing a packet within a Bluetooth network from a first node via a forwarding node to a second node, the packet having a first representation on a Baseband layer as a Baseband packet and a second representation on a Logical Link Control and Adaptation Layer Protocol, L2CAP, layer as a L2CAP packet, the L2CAP layer receding on a higher layer than the Baseband layer, the method comprising the steps of:
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indicating (601) in a header of the Baseband packet that the packet should be forwarded;
noting (602) relevant routing information in a header of the Baseband packet;
transmitting (603) the packet from the first node to the forwarding node;
analysing (604) the indication and the routing information;
short-circuiting (605) the L2CAP layer of the packet;
forwarding (606) the packet to the second node (G) according to the routing information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A Bluetooth network comprising a first node, a second node, at least one forwarding node, and a packet to be transferred, the packet having a first representation on a Baseband layer as a Baseband packet and a second representation on a Logical Link Control and Adaptation Layer Protocol, L2CAP, layer as a L2CAP packet, the L2CAP receding on a higher layer than the Baseband, characterised by
the first node having means for indicating in a header of the Baseband packet that the packet should be forwarded; -
the first node having means for noting relevant routing information in a header of the Baseband packet;
the first node having means for transmitting the packet to the forwarding node;
the forwarding node having means for analysing the indication and the routing information;
the forwarding node having means for short-circuiting the L2CAP layer of the packet; and
the forwarding node having means for forwarding the packet to the second node according to the routing information. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 27, 28, 29, 30, 31)
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24. A node (501) within a Bluetooth network for transmitting and routing packets, the packets the packet having a first representation on a Baseband layer as a Baseband packet and a second representation on a Logical Link Control and Adaptation Layer Protocol, L2CAP, layer as a L2CAP packet, the L2CAP receding on a higher layer than the Baseband, characterised by the node having means for:
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indicating (504) in a header of a Baseband packet that a packet should be forwarded;
noting (503) relevant routing information in a header of a Baseband packet;
transmitting (502) a packet to a forwarding node;
analysing (506) the indication and the routing information in a received packet;
short-circuiting (507) the Logical Link Control and Adaptation Layer Protocol, L2CAP, layer of a received packet; and
forwarding (508) a packet to a second node according to the routing information. - View Dependent Claims (25, 26, 32, 33, 34)
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Specification