Method of operation for the integration of differentiated services (Diff-Serv) marked IP-flows into a quality of service (QoS) priorities in a wireless point to multi-point (PtMP) transmission system

• US 20070050492A1
• Filed: 08/10/2006
• Published: 03/01/2007
• Est. Priority Date: 07/10/1998
• Status: Abandoned Application

• Current Assignee: Van Drebbel Mariner LLC (Intellectual Ventures LLC)
• Original Assignee: Van Drebbel Mariner LLC (Intellectual Ventures LLC)
• Inventors: Jorgensen, Jacob
• Application Number:
  US11/502,101
• Publication Number:
  US 20070050492A1
• Time in Patent Office: Days
• US Class Current: 709/223
• CPC Class Codes: H04L 1/20 using signal quality detector
• CPC Class Codes: H04L 12/1813 for computer conferences, e.g. chat rooms instant messaging H04L51/04; protocols for multimedia communication H04L65/1101; arrangements for multi-party communication H04L65/403; telephonic conference arrangements H04M3/56; television conference systems H04N7/15
• CPC Class Codes: H04L 12/1836 with heterogeneous network architecture
• CPC Class Codes: H04L 12/189 in combination with wireless systems selective distribution or broadcast in wireless communication networks H04W4/06
• CPC Class Codes: H04L 63/0272 Virtual private networks
• CPC Class Codes: H04L 69/16 Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
• CPC Class Codes: H04L 69/161 Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
• CPC Class Codes: H04L 69/163 In-band adaptation of TCP data exchange; In-band control procedures
• CPC Class Codes: H04L 69/165 Combined use of TCP and UDP protocols; selection criteria therefor
• CPC Class Codes: H04L 69/168 specially adapted for link layer protocols, e.g. asynchronous transfer mode [ATM], synchronous optical network [SONET] or point-to-point protocol [PPP]
• CPC Class Codes: H04L 69/169 Special adaptations of TCP, UDP or IP for interworking of IP based networks with other networks protocols for interworking, protocol conversion H04L69/08
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04Q 11/0414 Details
• CPC Class Codes: H04Q 2213/1305 Software aspects
• CPC Class Codes: H04Q 2213/13096 Digital apparatus individually associated with a subscriber line, digital line circuits
• CPC Class Codes: H04Q 2213/13097 Numbering, addressing
• CPC Class Codes: H04Q 2213/13098 Mobile subscriber
• CPC Class Codes: H04Q 2213/13141 Hunting for free outlet, circuit or channel
• CPC Class Codes: H04Q 2213/13166 Fault prevention
• CPC Class Codes: H04Q 2213/13176 Common channel signaling, CCS7
• CPC Class Codes: H04Q 2213/13196 : Connection circuit/link/trunk/junction, bridge, router, gateway
• CPC Class Codes: H04Q 2213/13204 : Protocols
• CPC Class Codes: H04Q 2213/13216 : Code signals, frame structure
• CPC Class Codes: H04Q 2213/1322 : PBX
• CPC Class Codes: H04Q 2213/13292 : Time division multiplexing, TDM
• CPC Class Codes: H04Q 2213/13296 : Packet switching, X.25, frame relay
• CPC Class Codes: H04Q 2213/13348 : Channel/line reservation
• CPC Class Codes: H04Q 2213/13389 : LAN, internet
• CPC Class Codes: H04W 12/033 : of the user plane, e.g. user's traffic
• CPC Class Codes: H04W 24/00 : Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 28/18 : Negotiating wireless communication parameters
• CPC Class Codes: H04W 28/20 : Negotiating bandwidth
• CPC Class Codes: H04W 28/24 : Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
• CPC Class Codes: H04W 28/26 : Resource reservation
• CPC Class Codes: H04W 48/12 : using downlink control channel
• CPC Class Codes: H04W 72/04 : Wireless resource allocation
• CPC Class Codes: H04W 72/0453 : Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 74/00 : Wireless channel access
• CPC Class Codes: H04W 80/00 : Wireless network protocols or protocol adaptations to wireless operation
• CPC Class Codes: H04W 80/04 : Network layer protocols, e.g. mobile IP [Internet Protocol]
• CPC Class Codes: H04W 80/06 : Transport layer protocols, e.g. TCP [Transport Control Protocol] over wireless transmission control protocol/Internet protocol [TCP/IP] or user datagram protocol [UDP] H04L69/16
• CPC Class Codes: H04W 84/06 : Airborne or Satellite Networks space-based or airborne stations H04B7/185

Abstract

A method for integrating differentiated services (DiffServ) marked IP-Flows into quality of service (QoS) priorities in a wireless point to multi-point (PtMP) transmission system. The system includes: a wireless base station coupled to a first data network, one or more host workstations coupled to the first data network, one or more subscriber customer premise equipment (CPE) stations in wireless communication with the wireless base station over a shared bandwidth using a packet centric protocol, one or more subscriber workstations coupled to each of the subscriber CPE stations over a second network, and a resource allocator that allocates shared bandwidth among the subscriber CPE stations. Included are the steps of: analyzing an IP flow for a differentiated services (DiffServ) marking; and scheduling the IP flows taking into account any the DiffServ marking.

Claims

1-12. -12. (canceled)

13. A method for integrating differentiated services (DiffServ) marked Internet Protocol (IP)-flows into quality of service (QoS) priorities in a wireless point to multi-point (PtMP) transmission system, the wireless point to multi-point (PtMP) transmission system comprising a wireless base station coupled to a first data network, one or more host workstations coupled to said first data network, one or more subscriber customer premise equipment (CPE) stations in wireless communication with said wireless base station over a shared wireless bandwidth using a packet-centric protocol, one or more subscriber workstations coupled to each of said subscriber CPE stations over a second network, and a resource allocator that allocates said shared wireless bandwidth among said subscriber CPE stations, the method comprising the steps of:

analyzing an Internet Protocol (IP) flow for a differentiated services (DiffServ) marking; and

scheduling communication of said IP flow over said shared wireless bandwidth with said resource allocator taking into account said DiffServ marking.

14. The method according to claim 13, wherein said IP flow comprises at least one of:

a transmission control protocol/internet protocol (TCP/IP) flow; and

an user datagram protocol/internet protocol (UDP/TP) flow.

15. The method according to claim 13, wherein said analyzing step comprises:

identifying said IP flow having said Diff Serv marking;

characterizing said IP flow having said Diff Serv marking; and

classifying said IP flow having said Diff Serv marking.

16. The method according to claim 13, wherein said scheduling step comprises:

prioritizing said IP flow taking into account any said DiffServ marking.

17. The method according to claim 16, wherein said prioritizing step comprises a weighted fair priorities (WFP).

18. The method according to claim 16, wherein said prioritizing step comprises at least one of:

prioritizing step based on a service level agreement (SLA) class priority;

prioritizing based on a virtual private network (VPN) subscription; and

prioritizing based on a virtual private network (VPN) subscription class priority.

19. The method according to claim 15, wherein said identifying step comprises at least one of the steps of:

analyzing one or more IP packet header fields in said IP flow; and

distinguishing between a new and an existing IP flow.

20. The method of claim 19, wherein said analyzing packet header fields step comprises at least one of:

buffering IP packets of said IP flows;

extracting identification information from said IP packet header fields of each of said IP packets; and

analyzing said identification information from said IP packet header fields.

21. The method of claim 20, wherein said extracting step comprises at least one step of;

determining whether said IP packets are a packet version IPv.4 or IPv.6; and

parsing said IP packet header fields of said IP flows.

22. The method of claim 21, wherein said analyzing step comprises the step of:

determining a source application type.

23. The method of claim 21, wherein said analyzing step comprises the step of:

taking into account any said differentiated service (DiffServ) field priority marking.

24. The method according to claim 23, wherein said DiffServ field priority marking is compatible with Internet Engineering Task Force (IETF) RFC 2474.

25. The method according to claim 23, wherein said Diff Serv field priority marking is compatible with IETF RFC 2475.

26. The method of claim 15, wherein said classifying step comprises the step of:

associating a packet of an existing. IP flow with said existing IP flow.

27. The method of claim 15, wherein said classifying step comprises the step of:

grouping a packet of a new IP flow into a QoS priority class.

28. The method of claim 27, wherein said grouping step comprises the step of:

taking into account any said DiffServ marking for said IP flow.

29. The method of claim 16, wherein said prioritizing step comprises the step of:

taking into account any said DiffServ marking for said IP flow.

30. A method of analyzing and scheduling traffic over a shared wireless bandwidth, the method comprising:

analyzing an IP flow to identify a differentiated services (DiffServ) marking; and

scheduling communication of said IP flow over a shared wireless bandwidth according to said DiffServ marking.

31. The method of claim 30, wherein said step (a) comprises:

(1) identifying an application associated with said IP flow.

32. The method of claim 30, wherein step (b) comprises:

(1) allocating system resources to said IP flow based on the contents of packets so as to optimize end user quality of service (QoS).