US Patent No: 6,845,105

Number of patents in Portfolio can not be more than 2000

Method and apparatus for maintaining sequence numbering in header compressed packets

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Abstract

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A method and apparatus for maintaining a plurality of sequence numbers in a plurality of header compressed packets associated with an information context is described. Header compressed packets are transferred on a communication link according to a multi-layer protocol having at least a higher layer and a lower layer. If it is determined that one or more header compressed packets has been dropped, a flag is set on the header compressed packets. A sequence count at the higher layer and lower layer may be reduced by a number corresponding to the number of header compressed packets dropped. The sequence number of each of the header compressed packets is checked at the lower layer against the sequence count and renumbered to match the sequence count. If the sequence number and the sequence count match the flag is cleared. The higher layer is a PPP layer and the lower layer is a Physical Layer.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
UNWIRED PLANET, LLCRENO, NV1058

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Olsson, Gunnar Tumba, SE 11 140
Rahlen, Simon Tullinge, SE 2 66

Cited Art Landscape

Patent Info (Count) # Cites Year
 
CORE WIRELESS LICENSING S.A.R.L (1)
* 6,300,887 Efficient handoff procedure for header compression 84 2000
 
GOOGLE TECHNOLOGY HOLDINGS LLC (1)
* 6,198,735 Method for retransmitting a data packet in a packet network 34 1999
 
LUCENT TECHNOLOGIES INC. (3)
* 6,414,950 Sequence delivery of messages 109 1998
* 6,512,754 Point-to-point protocol encapsulation in ethernet frame 204 1998
* 6,539,004 Time synchronization of packetized radio signals to base stations 19 1998
 
CISCO TECHNOLOGY, INC. (1)
* 6,006,268 Method and apparatus for reducing overhead on a proxied connection 54 1997
 
Kingston Technology Corporation (1)
* 5,850,526 LAN station for determining the destination LAN station is capable of decompressing by comparing destination address to block of addresses assigned by a LAN manufacturer 67 1996
 
NOKIA TECHNOLOGIES OY (1)
* 6,608,841 System and method for achieving robust IP/UDP/RTP header compression in the presence of unreliable networks 132 1999
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Sprint Communications Company L.P. (2)
* 7,301,901 Method and system for communicating voice over a low-speed communications link 0 2002
* 8,554,860 Traffic segmentation 1 2003
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (2)
* 2004/0252,650 System and method for enabling connection among devices in a network 4 2003
8,427,951 Method, system, and apparatus for reliable data packet recovery in a link layer of a data center ethernet network 0 2007
 
QUALCOMM INCORPORATED (2)
* 7,907,600 System and method for optimizing robust header compression (ROHC) in high delay variance environment 0 2006
* 2007/0147,366 System and method for optimizing robust header compression (ROHC) in high delay variance environment 4 2006
 
BLITZ STREAM VIDEO, LLC (5)
7,733,868 Layered multicast and fair bandwidth allocation and packet prioritization 32 2006
* 2006/0268,871 Layered multicast and fair bandwidth allocation and packet prioritization 31 2006
8,514,718 Layered multicast and fair bandwidth allocation and packet prioritization 8 2009
8,958,426 Layered multicast and fair bandwidth allocation and packet prioritization 1 2012
9,503,763 Layered multicast and fair bandwidth allocation and packet prioritization 0 2015
 
WILMINGTON TRUST, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT (2)
* 7,599,350 Packet prioritizing voice over packet network phone and system 3 2001
* 2003/0123,430 Voice over packet network phone 0 2001
 
ERICSSON AB (2)
7,792,534 Multiple threshold scheduler 3 2002
* 2002/0183,084 Multiple threshold scheduler 11 2002
 
Biltz Stream Video, LLC (1)
9,438,938 Layered multicast and fair bandwidth allocation and packet prioritization 0 2015
 
CISCO TECHNOLOGY, INC. (1)
* 7,627,870 Method and apparatus for a data structure comprising a hierarchy of queues or linked list data structures 39 2001
 
INTERNET BROADCASTING CORPORATION (4)
* 2009/0296,708 LAYERED MULTICAST AND FAIR BANDWIDTH ALLOCATION AND PACKET PRIORITIZATION 1 2009
* 2009/0257,448 LAYERED MULTICAST AND FAIR BANDWIDTH ALLOCATION AND PACKET PRIORITIZATION 0 2009
9,414,094 Layered multicast and fair bandwidth allocation and packet prioritization 0 2012
9,462,305 Layered multicast and fair bandwidth allocation and packet prioritization 0 2015
 
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) (2)
* 8,259,732 Medium access control priority-based scheduling for data units in a data flow 1 2004
* 2007/0081,513 Medium access control priority-based scheduling for data units in a data flow 104 2004
 
SAMSUNG ELECTRONICS CO., LTD. (2)
* 7,391,736 Method and apparatus for transmitting packet data having compressed header 26 2003
* 2004/0071,096 Method and apparatus for transmitting packet data having compressed header 6 2003
 
PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA (2)
* 7,328,283 Header compression/decompression apparatus and header compression/decompression method 8 2003
* 2005/0083,934 Header compression/decompression device and header compression/decompression method 8 2003
 
FUTUREWEI TECHNOLOGIES, INC. (2)
* 8,576,709 System and method for monitoring dropped packets 2 2011
* 2012/0300,648 System and Method for Monitoring Dropped Packets 2 2011
 
UNWIRED PLANET, LLC (2)
* 7,586,882 Higher layer packet framing using RLP 4 2005
* 2005/0220,071 Higher layer packet framing using RLP 5 2005
 
GULA CONSULTING LIMITED LIABILITY COMPANY (4)
8,868,715 Report generation and visualization systems and methods and their use in testing frameworks for determining suitability of a network for target applications 3 2002
* 8,543,681 Network topology discovery systems and methods 5 2002
* 2003/0097,438 Network topology discovery systems and methods and their use in testing frameworks for determining suitability of a network for target applications 120 2002
* 2003/0091,165 Report generation and visualization systems and methods and their use in testing frameworks for determining suitability of a network for target applications 26 2002
 
Texas Instruments Incorporated (2)
* 6,967,920 Smart interface for payload transfers in networking applications 1 2001
* 2003/0016,670 Smart interface for payload transfers in networking applications 3 2001
 
DIGITAL FOUNTAIN, INC. (1)
* 2010/0017,686 FAST CHANNEL ZAPPING AND HIGH QUALITY STREAMING PROTECTION OVER A BROADCAST CHANNEL 13 2009
 
BROADCOM CORPORATION (2)
* 8,953,628 Processor with packet ordering device 0 2011
* 2012/0008,631 Processor with packet ordering device 3 2011
 
IDTP HOLDINGS, INC. (2)
* 7,212,511 Systems and methods for VoIP wireless terminals 13 2002
* 2002/0146,000 Systems and methods for VoIP wireless terminals 10 2002
 
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (1)
* 2011/0051,730 MULTI-LAYER DATA PROCESSING APPARATUS AND METHOD THEREOF 1 2010
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (2)
* 2004/0165,585 Packet transmission apparatus and packet transmission method 13 2003
* 2004/0165,542 Packet transmitter and packet transmitter method 3 2003
 
NORTEL NETWORKS LIMITED (1)
* 2003/0135,632 Priority scheduler 20 2001
* Cited By Examiner

Maintenance Fees

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11.5 Year Payment $7400.00 $3700.00 $1850.00 Jul 18, 2016
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