(12) United States Patent
`Jorgensen
`
`USOO6862622B2
`US 6,862,622 B2
`*Mar. 1, 2005
`
`(10) Patent No.:
`(45) Date of Patent:
`
`(54)
`
`(75)
`(73)
`
`(21)
`(22)
`(65)
`
`(60)
`
`(51)
`(52)
`
`(58)
`
`(56)
`
`CA
`
`TRANSMISSION CONTROL PROTOCOL/
`INTERNET PROTOCOL (TCP/IP)
`PACKET-CENTRIC WIRELESS POINT TO
`MULTI-POINT (PTMP) TRANSMISSION
`SYSTEMARCHITECTURE
`
`Notice:
`
`Inventor: Jacob W. Jorgensen, Folsom, CA (US)
`Assignee: Van Drebbel Mariner LLC, Los Altos,
`CA (US)
`This patent issued on a continued pros
`ecution application filed under 37 CFR
`1.53(d), and is subject to the twenty year
`patent term provisions of 35 U.S.C.
`154(a)(2).
`
`Subject to any disclaimer, the term of this
`patent is extended or adjusted under 35
`U.S.C. 154(b) by 536 days.
`Appl. No.: 09/349,477
`Filed:
`Jul. 9, 1999
`Prior Publication Data
`US 2002/0099854 A1 Jul. 25, 2002
`Related U.S. Application Data
`Provisional application No. 60/092,452, filed on Jul. 10,
`1998.
`Int. Cl............................................... G06F 15/173
`U.S. Cl. ....................... 709/226; 709/229; 709/223;
`370/338; 370/351
`Field of Search ................................. 709/104, 229,
`709/217-219, 250, 226, 223; 370/351,328,
`338
`
`References Cited
`U.S. PATENT DOCUMENTS
`
`4,742,512 A
`5/1988 Akashi et al.
`(List continued on next page.)
`FOREIGN PATENT DOCUMENTS
`
`7/1999
`2O64975
`(List continued on next page.)
`
`OTHER PUBLICATIONS
`Cheng et al., “Wireless Intelligent ATM Network and
`Protocol Design for Future Personal Communication Sys
`tems”, IEEE 1997.*
`(List continued on next page.)
`Primary Examiner-Hosain Alam
`Assistant Examiner Philip B. Tran
`(74) Attorney, Agent, or Firm-Fulbright & Jaworski L.L.P.
`(57)
`ABSTRACT
`A packet-centric wireleSS point to multi-point telecommu
`nications System includes: a wireleSS base Station commu
`nicating via a packet-centric protocol to a first data network;
`one or more host WorkStations communicating via the
`packet-centric protocol to the first data network; one or more
`Subscriber customer premise equipment (CPE) stations
`coupled with the wireleSS base Station over a shared band
`width via the packet-centric protocol over a wireleSS
`medium; and one or more Subscriber WorkStations coupled
`via the packet-centric protocol to each of the Subscriber CPE
`Stations over a Second network. The packet-centric protocol
`can be transmission control protocol/internet protocol (TCP/
`IP). The packet-centric protocol can be a user datagram
`protocol/internet protocol (UDP/IP). The system can include
`a resource allocation means for allocating shared bandwidth
`among the subscriber CPE stations. The resource allocation
`is performed to optimize end-user quality of Service (QoS).
`The Wireless communication medium can include at least
`one of: a radio frequency (RF) communications medium; a
`cable communications medium; and a Satellite communica
`tions medium. The wireleSS communication medium can
`further include a telecommunications access method includ
`ing at least one of: a time division multiple access (TDMA)
`acceSS method; a time division multiple acceSS/time division
`duplex (TDMA/TDD) access method; a code division mul
`tiple access (CDMA) access method; and a frequency divi
`sion multiple access (FDMA) access method.
`The first data network includes at least one of: a wireline
`network; a wireless network; a local area network (LAN);
`and a wide area network (WAN). The second network
`includes at least one of a wireline network; a wireleSS
`network; a local area network (LAN); and a wide area
`network (WAN).
`22 Claims, 41 Drawing Sheets
`
`424
`
`414
`
`425
`
`4.14c
`
`426
`
`D
`
`A.
`G
`N
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`T
`
`C
`S
`
`
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`414
`
`DAA AND
`APPLICATIONS (AAE)
`
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`40
`
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`A
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`
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`P .410
`429 R
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`422B
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`416
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`
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`
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`
`418 PHY
`
`402
`
`

`

`US 6,862,622 B2
`Page 2
`
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`
`
`
`

`

`US 6,862,622 B2
`Page 3
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`* cited by examiner
`
`

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`1
`TRANSMISSION CONTROL PROTOCOL/
`INTERNET PROTOCOL (TCP/IP)
`PACKET-CENTRIC WIRELESS POINT TO
`MULTI-POINT (PTMP) TRANSMISSION
`SYSTEMARCHITECTURE
`CROSS-REFERENCE TO OTHER
`APPLICATIONS
`This application claims benefit of priority from U.S.
`Provisional Patent Application No. 60/092,452, filed Jul. 10,
`1998.
`The following applications of common assignee contain
`common disclosure:
`U.S. patent application Ser. No. 09/349,480 entitled
`“Quality of Service (QoS) Aware Wireless Point to Multi
`Point (PtMP) Transmission System Architecture,” filed Jul.
`9, 1999.
`U.S. patent application Ser. No. 09,350,126 entitled
`“Method for Providing Dynamic Bandwidth Allocation
`Based on IP-Flow Characteristics in a Wireless Point to
`Multi-Point (PtMP) Transmission System,” filed Jul. 9,
`1999.
`U.S. patent application Ser. No. 09/350,118 entitled
`“Method for Providing for Quality of Service (QoS)-Based
`Handling of IP-Flows in a Wireless Point to Multi-Point
`Transmission System,” filed Jul. 9, 1999.
`U.S. patent application Ser. No. 09/347,856 entitled “IP
`Flow Identification in a Wireless Point to Multi-Point Trans
`mission System,” filed Jul. 9, 1999.
`U.S. patent application Ser. No. 09/350,150 entitled “IP
`Flow Characterization in a Wireless Point to Multi-Point
`(PtMP) Transmission System,” filed Jul. 9, 1999.
`U.S. patent application Ser. No. 09/350,156 entitled “IP
`Flow Classification in a Wireless Point to Multi-Point
`(PtMP) Transmission System,” filed Jul. 9, 1999.
`U.S. patent application Ser. No. 09/349,476 entitled “IP
`Flow Prioritization in a Wireless Point to Multi-Point
`(PtMP) Transmission System,” filed Jul. 9, 1999.
`U.S. patent application Ser. No. 09/350,170 entitled
`“Method of Operation for Providing for Service Level
`Agreement (SLA) Based Prioritization in a Wireless Point to
`Multi-Point (PtMP) Transmission System,” filed Jul. 9,
`1999.
`U.S. patent application Ser. No. 09/349,481 entitled
`“Method for Transmission Control Protocol (TCP) Rate
`Control With Link-Layer Acknowledgements in a Wireless
`Point to Multi-Point (PtMP) Transmission System,” filed
`Jul. 9, 1999.
`U.S. patent application Ser. No. 09/350,159 entitled
`“Transmission Control Protocol/Internet Protocol (TCP/
`IP)-Centric QoS Aware Media Access Control (MAC)
`Layer in a Wireless Point to Multi-Point (PtMP) Transmis
`sion System,” filed Jul. 9, 1999.
`U.S. patent application Ser. No. 09/347.857 entitled “Use
`of Priority-Based Scheduling for the Optimization of
`Latency and Jitter Sensitive IP Flows in a Wireless Point to
`Multi-Point Transmission System,” filed Jul. 9, 1999.
`U.S. patent application Ser. No. 09/349,475 entitled
`“Time Division Multiple Access/Time Division Duplex
`(TDMA/TDD) Access Method for a Wireless Point to Multi
`Point Transmission System,” filed Jul. 9, 1999.
`U.S. patent application Ser. No. 09/349,483 entitled "Res
`ervation Based Prioritization Method for Wireless Transmis
`sion of Latency and Jitter Sensitive IP-Flows in a Wireless
`Point to Multi-Point Transmission System,” filed Jul. 9,
`1999.
`
`15
`
`25
`
`35
`
`40
`
`45
`
`50
`
`55
`
`60
`
`65
`
`US 6,862,622 B2
`
`2
`U.S. patent application Ser. No. 09/349,479 entitled
`“Translation of Internet-Prioritized Internet Protocol (IP)-
`flows into Wireless System Resource Allocations in a Wire
`less Point to Multi-Point (PtMP) Transmission System.”
`filed Jul. 9, 1999.
`U.S. patent application Ser. No. 09/350,162 entitled
`“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,” filed Jul. 9, 1999.
`U.S. patent application Ser. No. 09/349,975 entitled
`“Method for the Recognition and Operation of Virtual
`Private Networks (VPNs) over a Wireless Point to Multi
`Point (PtMP) Transmission System,” filed Jul. 9, 1999.
`U.S. patent application Ser. No. 09/350,153 entitled
`“Time Division Multiple Access/Time Division Duplex
`(TDMA/TDD) Transmission Media Access Control (MAC)
`Air Frame,” filed Jul. 9, 1999.
`U.S. patent application Ser. No. 09/349,482 entitled
`“Application-Aware , Quality of Service (QoS) Sensitive,
`Media Access Control (MAC) Layer,” filed Jul. 9, 1999.
`U.S. patent application Ser. No. 09/349,478 entitled
`“Transmission Control Protocol/Internet Protocol (TCP/IP)
`Packet-Centric Wireless Point to Multi-Point (PtP) Trans
`mission System Architecture,” filed Jul. 9, 1999.
`U.S. patent application Ser. No. 09/349,474 entitled
`“Transmission Control Protocol/Internet Protocol (TCP/IP)
`Packet-Centric Cable Point to Multi-Point (PtMP) Trans
`mission System Architecture,” filed Jul. 9, 1999.
`BACKGROUND OF THE INVENTION
`Field of the Invention
`The present invention relates generally to telecommuni
`cations and, more particularly, to a System and method for
`implementing a QoS aware wireless point-to-multi-point
`transmission System.
`RELATED ART
`Telecommunication networkS Such as voice, data and
`video networks have conventionally been customized for the
`type of traffic each is to transport. For example, Voice traffic
`is very latency Sensitive but quality is leSS important, So
`Voice networks are designed to transport Voice traffic with
`limited latency. Traditional data traffic, Such as, e.g., a
`Spreadsheet, on the other hand is not latency Sensitive, but
`error-free delivery is required. Conventional telecommuni
`cations networks use circuit Switching to achieve acceptable
`end user quality of service (QoS). With the advent of new
`packet Switching high bandwidth data networks, different
`types of traffic can be transported over a data network.
`Specifically, convergence of Separate Voice, data and Video
`networks into a Single broadband telecommunications net
`work is enabled. To ensure end user Satisfaction, a System is
`desired that provides QoS for various types of traffic to be
`transported.
`WireleSS networks present particular challenges over their
`wireline counterparts in delivering QoS. For example, wire
`less networks traditionally exhibit high bit error rates (BER)
`due to a number of reasons. Conventional wireleSS networks
`also implement circuit Switched connections to provide
`reliable communications channels. However the use of cir
`cuit Switched connections allocates bandwidth between
`communicating nodes whether or not traffic is constantly
`being transferred between the nodes. Therefore, circuit
`Switched connections use communications bandwidth rather
`inefficiently.
`
`

`

`US 6,862,622 B2
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