Wireless communications system having built-in packet data compression and support for enabling non-standard features between network elements
First Claim
1. A method for performing data compression in a wireless communications system, comprising:
- receiving an original data packet at a network node located between a packet data network and an Internet Protocol (IP) network of the wireless communications system;
compressing the original data packet at the network node; and
transmitting the compressed original data packet through the IP network and through a wireless link to a mobile station.
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0 Petitions
Accused Products
Abstract
A mobile station (100) and a compression/decompression node in a wireless network (5), preferably the GGSN 30 (30), agree on whether to apply compression/decompression, and what compression/decompression scheme to use either by pre-configuration (when the GGSN 30 is in the home network of the mobile terminal) or by signalling (when the GGSN 30 is in a visited or a roamed-to network). Additional information, such as a profile-specific dictionary, may be used to increase the compression efficiency, particularly during start-up. Dynamic data can also be accommodated. The compression/decompression may be turned on and off on a packet-by-packet basis, depending on whether the compression actually results in a smaller packet. A compressed/uncompressed indicator bit or bits can be inserted explicitly on a per packet basis, and/or the compressed/uncompressed indication can be derived implicitly. A desired data compression/decompression algorithm, or any desired Proprietary Feature, can be signaled, possible without requiring standardization changes, by using a Packet Data Protocol PDP Context Activation message with a predetermined Access Point Name (APN) message information element that is sent from a first network element to a second network element for at least identifying the desired compression/decompression algorithm. It another embodiment, for the case where Proprietary Feature capability is exchanged between a RAN and a UE network element, a transmission of an extension to a UE Capability Enquiry message is sent to the UE for identifying the Proprietary Feature.
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Citations
72 Claims
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1. A method for performing data compression in a wireless communications system, comprising:
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receiving an original data packet at a network node located between a packet data network and an Internet Protocol (IP) network of the wireless communications system;
compressing the original data packet at the network node; and
transmitting the compressed original data packet through the IP network and through a wireless link to a mobile station. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for performing data compression in a wireless communications system, comprising:
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receiving an original data packet at a mobile station;
compressing the original data packet at the mobile station; and
transmitting the compressed original data packet through a wireless link to a network node located between a packet data network and an Internet Protocol (IP) network of the wireless communications system. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A method for performing data compression in a wireless communications system, comprising:
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at a first network element, determining if a second network element supports a desired data compression/decompression algorithm;
if the determination is positive, receiving an original data packet at the first network element;
compressing the original data packet at the first network element using the desired data compression algorithm;
transmitting the compressed original data packet through a wireless link to the second network element; and
decompressing the compressed data packet at the second network element;
wherethe operation of determining if the second network element supports the desired data compression/decompression algorithm uses a Packet Data Protocol PDP Context Activation message with a predetermined Access Point Name (APN) message information element that is sent from the first network element to the second network element for at least identifying the desired compression/decompression algorithm. - View Dependent Claims (30, 31, 32, 33, 34)
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35. A method for invoking a Proprietary Feature in a wireless communications system, comprising:
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at a first network element, determining if a second network element supports a desired Proprietary Feature by sending a Packet Data Protocol PDP Context Activation message with a predetermined Access Point Name (APN) message information element that is sent from the first network element to the second network element for at least identifying the desired Proprietary Feature; and
if the second network element supports the desired Proprietary Feature, sending a Create PDP Context Request, with the predetermined APN, to one of a third network element or to the first network element. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42)
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43. A method for implementing a Proprietary Feature in a wireless communications system, comprising:
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originating a request at a first one of a plurality of network elements to determine if a second network element supports a desired Proprietary Feature, the request comprising a signaling exchange involving at least the first and second network elements, the signaling exchange being accomplished at least in part through a modification to an interpretation of a portion of a first message; and
if the second network element supports the desired Proprietary Feature, signaling the first network node using a second message. - View Dependent Claims (44, 45, 46, 47, 48, 49, 50, 51, 52, 53)
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54. A wireless communication system, comprising:
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means for originating a request at a first one of a plurality of network elements to determine if a second network element supports a desired Proprietary Feature, the request comprising a signaling exchange involving at least the first and second network elements, the signaling exchange being accomplished at least in part through a modification to an interpretation of a portion of a first message; and
means at said second network element that is responsive to the second network element supporting the desired Proprietary Feature, for signaling the first network node using a second message. - View Dependent Claims (55, 56, 57, 58, 59, 60, 61, 62, 63, 64)
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65. A method for implementing a Proprietary Feature in a wireless communications system, comprising:
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for a case where Proprietary Feature capability is exchanged between a Radio Access Network RAN and a user equipment UE network element, transmitting an extension to a UE Capability Enquiry message to the UE for identifying the Proprietary Feature; and
at a UE that does not support the Proprietary Feature, ignoring the content of the extension, while at a UE that does support the Proprietary Feature, accepting the extension as an enquiry for processing in accordance with the supported Proprietary Feature. - View Dependent Claims (66, 67, 68)
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- 69. A wireless communications system, said system comprising means for implementing a Proprietary Feature, said implementing means comprising, for a case where Proprietary Feature capability is exchanged between a Radio Access Network RAN and a user equipment UE network element, means for transmitting an extension to a UE Capability Enquiry message to the UE for identifying the Proprietary Feature and means, at a UE that does not support the Proprietary Feature, for ignoring the content of the extension, and means, at a UE that does support the Proprietary Feature, for accepting the extension as an enquiry for processing in accordance with the supported Proprietary Feature.
Specification