| 摘要 |
Methods and network devices for communicating data packets in a set of transmissions between a transmitter and a receiver of a communications network are described. The method includes prior exchanging transmitter-provided packet information and receiver-provided packet information between the transmitter and the receiver, generating an initial compression dictionary before the first transmission, based on the exchanged transmitter-provided packet information and the exchanged receiver-provided packet information. At the transmitter, the method further includes compressing the data packets of the first and subsequent transmissions of the set using the initial compression dictionary, and sending the compressed data packets over the communications network to the receiver. At the receiver, the method further includes receiving compressed data packets from the transmitter via the communications network, and decompressing the compressed data packets received in the first and subsequent transmissions of the set, using the initial compression dictionary. Improved compression of the first transmission is thus obtained. |
| 主权项 |
1. A method of communicating data packets in a set of transmissions between a first communicating device and a second communicating device of a communications network, the method comprising:
exchanging, before the set of transmissions, first-device-provided packet information and second-device-provided packet information between the first communicating device and the second communicating device, wherein the first-device-provided packet information comprise a private part and a shared part of a dictionary local to the first communicating device and the second-device-provided packet information comprise a private part and a shared part of a dictionary local to the second communicating device; generating, at the first communicating device, a first initial compression dictionary, and generating, at the second communicating device, a first initial decompression dictionary, both the first initial compression dictionary and the first initial decompression dictionary are generated based on the private and shared parts of the dictionary local to the first communicating device and the shared part of the dictionary local to the second communicating device; generating, at the first communicating device, a second initial decompression dictionary, and generating, at the second communicating device, a second initial compression dictionary, both the second initial decompression dictionary and the second initial compression dictionary are generated based on the shared part of the dictionary local to the first communicating device and the private and shared parts of the dictionary local to the second communicating device; using, at the first communicating device, the first initial compression dictionary to compress data packets of the set of transmissions before sending them, through the set of transmissions, over the communications network to the second communicating device; and using, at the first communicating device, the second initial decompression dictionary to decompress data packets received in the set of transmissions from the second communicating device via the communication network; using, at the second communicating device, the second initial compression dictionary to compress data packets of the set of transmissions before sending them, through the set of transmissions, over the communications network to the first communicating device; and using, at the second communicating device, the first initial decompression dictionary to decompress data packets received in the set of transmissions from the first communicating device via the communication network. |
