Data Sharing in a Multimedia Communication System
First Claim
1. A method of optimising the use of transmission bandwidth in a communication system, the method comprising, for data to be sent via an interface from a first to a second node;
- determining at said first node whether or not the data has been sent previously to said second node or another node;
if the data has been previously sent, generating a signature for the data content, sending the signature from the first to the second node or to an intermediate node in the transmission path, at the second node or said intermediate node comparing the signature to signatures for data stored at that node, and sending the data from the first to the second node, via said interface, only if the received signature does not match a signature for stored data; and
if the data has not been previously sent, sending the complete data to said second node.
1 Assignment
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Accused Products
Abstract
Data Sharing in a Multimedia Communication System. A method of optimising the use of transmission bandwidth in a mobile radio communication system, the method comprising, for data to be sent via the air interface from a first to a second node, generating a signature for the data content, sending the signature from the first to the second node or to an intermediate node in the transmission path, at the second node or said intermediate node comparing the signature to signatures for data stored at that node, and sending the data from the first to the second node, via the air interface, only if the received signature does not match a signature for stored data.
28 Citations
6 Claims
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1. A method of optimising the use of transmission bandwidth in a communication system, the method comprising, for data to be sent via an interface from a first to a second node;
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determining at said first node whether or not the data has been sent previously to said second node or another node;
if the data has been previously sent, generating a signature for the data content, sending the signature from the first to the second node or to an intermediate node in the transmission path, at the second node or said intermediate node comparing the signature to signatures for data stored at that node, and sending the data from the first to the second node, via said interface, only if the received signature does not match a signature for stored data; and
if the data has not been previously sent, sending the complete data to said second node. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification