Communication node and packet transfer method
First Claim
1. A communication node comprising:
- means for dividing a packet to be transmitted into segments to form a plurality of packet segments;
means for selecting an error correction scheme, from among a plurality of error correction schemes to be employed, for each of the packet segments in accordance with error resistance of each of the packet segments, the error resistance being determined at least by the content of each packet segment;
means for carrying out an error correction process on each packet segment with the selected error correction scheme; and
means for transmitting each processed packet segment to a network, wherein the selecting means determines the error correction scheme by referring to a port number in said packet.
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Accused Products
Abstract
A communication node which can reliably transfer a packet with a payload including data having error resistance in radio environments is disclosed. A packet to be transmitted is divided into segments to form a plurality of packet segments. From among a plurality of error correction schemes that have been prepared in advance, the scheme to be employed is selected for each of the packet segments in accordance with predetermined criteria, and the selected error correction scheme is applied to each packet segment. Subsequently, the processed packet segment is transmitted to the network. Packet segments are received from the network. From among a plurality of error correction schemes prepared in advance, the scheme to be employed is selected for each of the received packet segments based on predetermined information contained in each received packet segment, and the selected error correction scheme is applied to the received packet segment. An original packet is formed from the plurality of processed packet segments.
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Citations
8 Claims
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1. A communication node comprising:
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means for dividing a packet to be transmitted into segments to form a plurality of packet segments;
means for selecting an error correction scheme, from among a plurality of error correction schemes to be employed, for each of the packet segments in accordance with error resistance of each of the packet segments, the error resistance being determined at least by the content of each packet segment;
means for carrying out an error correction process on each packet segment with the selected error correction scheme; and
means for transmitting each processed packet segment to a network, wherein the selecting means determines the error correction scheme by referring to a port number in said packet. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A packet transferring method comprising the steps of:
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dividing a packet to be transmitted into segments to form a plurality of packet segments;
determining an error resistance of each of the packet segments at least by the content of each packet segment;
selecting an error correction scheme from among a plurality of error correction schemes to be employed for each of the packet segments in accordance with the error resistance of each of the packet segments;
carrying out an error correction process on each packet segment with the selected error correction scheme; and
transmitting each processed packet segment to a network, wherein the error correction scheme is selected by referring to a port number in said packet. - View Dependent Claims (8)
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Specification