(12) Unlted States Patent
`(16) Patent No.:
`US 6,628,629 B1
`
`Jorgensen
`(45) Date of Patent:
`*Sep. 30, 2003
`
`U5006628629B1
`
`(54) RESERVATION BASED PRIORITIZATION
`METHOD FOR WIRELESS TRANSMISSION
`0F LATENCY AND JITTER SENSITIVE
`IP-FLOWS IN A WIRELESS POINT TO
`MULTI-POINT TRANSMISSION SYSTEM
`
`(75)
`
`.
`Inventor.
`Jacob W. Jorgensen, Folsom, CA (US)
`.
`.
`.
`(73) A551gnee: gagglbu Networks, El Dorado Hills, CA
`
`5/1996 Ben—Nun et a1.
`5,515,363 A
`(List continued on next
`a e)
`p g ‘
`FOREIGN PATENT DOCUMENTS
`
`CA
`EP
`W0
`W0
`W0
`
`7/1999
`2064975
`6/1999
`926 845 A2
`11/2000
`W0 0072626 A1
`12/2000
`WO 00/79722
`5/2002
`WO 02/39710 A1
`OTHER PUBLICATIONS
`
`( * ) Notice:
`
`Subject to any disclaimer, the term of this
`patent is extended or adjusted under 35
`U.S.C. 154(b) by 0 days.
`
`.
`.
`Cheng et a1., “Wireless Intelligent ATM Network and Pro-
`tocol Design for Future Personal Communication Systems”,
`IEEE 1997.
`
`This patent is subject to a terminal dis-
`claimer.
`
`(List continued on next page.)
`
`(21) Appl. No.: 09/349 483
`’
`Jul. 9, 1999
`
`Filed:
`
`(22)
`
`(60)
`
`Related US. Application Data
`lfgg‘éIEIOHal apphcanon NO' 60/092’452’ filed on JUL 10’
`7
`
`Int. Cl.
`(51)
`(52) US. Cl.
`
`................................................ H04B 7/212
`....................... 370/322; 370/329; 370/341;
`370/437; 370/443; 370/458; 370/468
`(58) Field of Search ................................. 370/280, 294,
`370/321, 322, 326, 329, 336, 337, 341,
`344, 347, 437, 442, 443, 444, 458, 468,
`477, 493
`
`(56)
`
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`Primary Examiner—Hassan Kizou
`Assistant Examiner—Anh-Vu H Ly
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`Albrecht
`
`ABSTRACT
`(57)
`A wireless telecommunications network having superior
`quality of service is provided. A system and method for
`assigning future slots of a transmission frame to a data
`packet in the transmission frame for transmission over a
`wireless telecommunication network system includes apply-
`ing an advanced reservation algorithm, reserving a first slot
`for a first data packet of an internet protocol (IP) flow in a
`future transmission frame based on the algorithm, reserving
`a second slot for a second data packet of the IP flow in a
`transmission frame subsequent in time to the future trans-
`mission frame based on the algorithm, wherein the second
`data packet is placed in the second slot in an isochronous
`manner to the placement of the first data packet in the first
`slot. There may be a periodic variation between the place-
`ment of the first data packet
`in the first slot and the
`placement of second data packet in the second slot or no
`periodic variation between placements of slots. The
`advanced reservation algorithm makes a determination
`whether the IP flow is jitter-sensitive.
`
`21 Claims, 41 Drawing Sheets
`
`1204
`1305
`/
`Current MAC;
`Next MAC
`Class—3 downstream reservation FiFO
`1344
`gfi— downstream subetrame upstream subetrame
`CIosH packet
`flow queues
`tittittttttttititttttliitttttlttttttIIIIIII —N
`Previous MAC u-stream subtrames:
`
`1202
`
`w
`
`
`
`1342 M333 1336
`Cl
`72 d
`t
`t
`FIFO
`- 1840
`,
`°§§_ 30,
`
`m
`m m
`\__
`a.
`1334\ ’332 1330
`Latency sensitive (Class~1)
`downstream reservation FIFO
`S-i-E-é- 1302
`
`.
`
`1322
`
`~~1 lttttttttttttttttt-\mw
`Reservations
`\
`~—2 lttttttttttttttttttt-§\ .35.,
`' “WWW N—S littsttsaéttlttlti- \\ 1352
`9mm
`A
`'3'
`
`PRIMMA MAC-
`Upstream reservation requests i ‘3‘
`‘
`tram subscriber CPEs
`‘
`- 1P Flow
`
`>Rseservation.
`312
`v
`CPE upstream flow requests:
`cheduter
`
`flows
`m Class—3 packet
`
`
`SMTP (Email), FTP, e
`
`
`flows
`iii
`005572 packet
`
`
`
`H'FtP. non—reottime 1303
` §§_Realtime interactive
`§§_ video streams, etc.
`sitive
`for 1P latency sen
`tiows
`voice. video, etc.
`
`Ericsson Exhibit 1001
`
`Page 1
`
`(Class—t) packet Downstream reservation FiFO
`
`Ericsson Exhibit 1001
`Page 1
`
`

`

`US 6,628,629 B1
`
`Page 2
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`
`Ericsson Exhibit 1001
`Page 2
`
`

`

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`Ericsson Exhibit 1001
`
`Page 3
`
`Ericsson Exhibit 1001
`Page 3
`
`

`

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`Ericsson Exhibit 1001
`
`Page 4
`
`Ericsson Exhibit 1001
`Page 4
`
`
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`Ericsson Exhibit 1001
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`US. Patent
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`Sep. 30, 2003
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`Ericsson Exhibit 1001
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`Ericsson Exhibit 1001
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`Sep. 30, 2003
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`Ericsson Exhibit 1001
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`Sep. 30, 2003
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`Ericsson Exhibit 1001
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`Ericsson Exhibit 1001
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`Sep. 30, 2003
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`US. Patent
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`Sep. 30, 2003
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`Sheet 19 0f 41
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`US 6,628,629 B1
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`Ericsson Exhibit 1001
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`Page 22
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`Ericsson Exhibit 1001
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`US. Patent
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`Sep. 30, 2003
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`Sheet 20 0f 41
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`Ericsson Exhibit 1001
`Page 23
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`US. Patent
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`Sep. 30, 2003
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`Sheet 21 0f 41
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`US 6,628,629 B1
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`Ericsson Exhibit 1001
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`Ericsson Exhibit 1001
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`US. Patent
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`Sep. 30, 2003
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`Sheet 22 0f 41
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`US 6,628,629 B1
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`US. Patent
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`Sep. 30, 2003
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`Sheet 23 0f 41
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`US 6,628,629 B1
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`Ericsson Exhibit 1001
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`Ericsson Exhibit 1001
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`US. Patent
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`Sep. 30, 2003
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`Sheet 24 0f 41
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`US 6,628,629 B1
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`Sep. 30, 2003
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`Sheet 25 0f 41
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`US. Patent
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`Sep. 30, 2003
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`Sheet 26 0f 41
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`US 6,628,629 B1
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`Page 29
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`Ericsson Exhibit 1001
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`US. Patent
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`Sep. 30, 2003
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`Sheet 27 0f 41
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`US 6,628,629 B1
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`Ericsson Exhibit 1001
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`US. Patent
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`Sep. 30, 2003
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`Sheet 28 0f 41
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`US 6,628,629 B1
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`Ericsson Exhibit 1001
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`US. Patent
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`Sep. 30, 2003
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`Sheet 29 0f 41
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`US 6,628,629 B1
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`Ericsson Exhibit 1001
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`US. Patent
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`Sep. 30, 2003
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`Sheet 30 0f 41
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`US 6,628,629 B1
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`Ericsson Exhibit 1001
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`US. Patent
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`Sep. 30, 2003
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`Sheet 31 0f 41
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`US 6,628,629 B1
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`Ericsson Exhibit 1001
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`US. Patent
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`Sep. 30, 2003
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`Sheet 32 0f 41
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`US 6,628,629 B1
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`Page 35
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`Ericsson Exhibit 1001
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`US. Patent
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`Sep. 30, 2003
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`Sheet 33 0f 41
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`US 6,628,629 B1
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`Ericsson Exhibit 1001
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`US. Patent
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`Sep. 30, 2003
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`Sheet 34 0f 41
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`US 6,628,629 B1
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`Ericsson Exhibit 1001
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`US. Patent
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`Sep. 30, 2003
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`Sheet 35 0f 41
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`Ericsson Exhibit 1001
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`Page 39
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`Ericsson Exhibit 1001
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`Ericsson Exhibit 1001
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`Ericsson Exhibit 1001
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`US. Patent
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`Sep. 30, 2003
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`Sheet 38 0f 41
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`US. Patent
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`Sheet 39 0f 41
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`US. Patent
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`Ericsson Exhibit 1001
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`Page 43
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`Ericsson Exhibit 1001
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`US. Patent
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`Sep. 30, 2003
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`Sheet 41 0f 41
`
`US 6,628,629 B1
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`Page 44
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`Ericsson Exhibit 1001
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`US 6,628,629 B1
`
`1
`RESERVATION BASED PRIORITIZATION
`METHOD FOR WIRELESS TRANSMISSION
`OF LATENCY AND JITTER SENSITIVE
`IP-FLOWS IN A WIRELESS POINT TO
`MULTI-POINT TRANSMISSION SYSTEM
`
`This application claims benefit of priority from US.
`Provisional Patent Application No. 60/092,452, filed Jul. 10,
`1998.
`
`CROSS-REFERENCE TO OTHER
`APPLICATIONS
`
`The following applications of common assignee contain
`common disclosure:
`
`US. Patent Application entitled “Transmission Control
`Protocol/Internet Protocol (TCP/IP) Packet-Centric Wire-
`less Point to Multi-Point (PtMP) Transmission System
`Architecture,” filed Jul. 9, 1999, US. application Ser. No.
`09/349,477.
`US. Patent Application entitled “Quality of Service Aware
`(QoS)—Aware Wireless Point
`to Multi-Point (PtMP)
`Transmission System Architecture,” filed Jul. 9, 1999,
`US. application Ser. No.09/349,480.
`US. Patent Application entitled “Method for Providing
`Dynamic Bandwidth Allocation Based on IP-Flow Char-
`acteristics in a Wireless Point
`to Multi-Point (PtMP)
`Transmission System,” filed Jul. 9, 1999, US. application
`Ser. No. 09/350,126.
`US. Patent Application 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, US. application Ser. No. 09/350,118.
`US. Patent Application entitled “IP-Flow Identification in a
`Wireless Point to Multi-Point Transmission System,” filed
`Jul. 9, 1999, US. application Ser. No. 09/347,856.
`US. Patent Application entitled “IP-Flow Characterization
`in a Wireless Point to Multi-Point (PtMP) Transmission
`System,” filed Jul. 9, 1999, US. application Ser. No.
`09/350,150.
`US. Patent Application entitled “IP-Flow Classification in a
`Wireless Point
`to Multi-Point (PtMP) Transmission
`System,” filed Jul. 9, 1999, US. application Ser. No.
`09/350,156.
`US. Patent Application entitled “IP-Flow Prioritization in a
`Wireless Point
`to Multi-Point (PtMP) Transmission
`System,” filed Jul. 9, 1999, US. application Ser. No.
`09/349,476.
`US. Patent Application 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, US. application
`Ser. No. 09/350,170.
`US. Patent Application entitled “Method for Transmission
`Control Protocol (TCP) Rate Control With Link-Layer
`Acknowledgments in a Wireless Point
`to Multi-Point
`(PtMP) Transmission System,” filed Jul. 9, 1999, US.
`application Ser. No. 09/349,481.
`US. Patent Application entitled “Transmission Control
`Protocol/Internet Protocol (TCP/IP)—Centric QoS Aware
`Media Access Control (MAC) Layer in a Wireless Point
`to Multi-Point (PtMP) Transmission System,” filed Jul. 9,
`1999, US. Application. Serial No. 09/350,159.
`US. Patent Application 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, US. application
`Ser. No. 09/347,857.
`
`2
`US. Patent Application 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, US. application Ser. No.
`09/349,475.
`US. Patent Application entitled “Translation of Internet-
`Prioritized Internet Protocol (IP)-Flows into Wireless
`System Resource Allocations in a Wireless Point to Multi-
`Point (PtMP) Transmission System,” filed Jul. 9, 1999,
`US. application Ser. No. 09/349,479.
`US. Patent Application entitled “Method of Operation for
`the Integration of Differentiated services (Diff-serv)
`Marked IP-Flows into a Quality of Service (QoS) Priori-
`ties in a Wireless Point to Multi-Point (PtMP) Transmis-
`sion System,” filed Jul. 9, 1999, US. application Ser. No.
`09/350,162.
`US. Patent Application entitled “Method for the Recogni-
`tion and Operation of Virtual Private Networks (VPNs)
`over a Wireless Point to Multi-Point (PtMP) Transmission
`System,” filed Jul. 9, 1999, US. application Ser. No.
`09/349,975.
`US. Patent Application entitled “Time Division Multiple
`Access/Time Division DupleX (TDMA/TDD) Transmis-
`sion Media Access Control (MAC) Air Frame,” filed Jul.
`9, 1999, US. application Ser. No. 09/350,173.
`US. Patent Application entitled “Application—Aware,
`Quality of Service (QoS) Sensitive, Media Access Control
`(MAC) Layer,” filed, Jul. 9, 1999, US. application Ser.
`No. 09/349,482.
`US. Patent Application entitled “Transmission Control
`Protocol/Internet Protocol (TCP/IP) Packet-Centric Wire-
`less Point
`to Point
`(PtP) Transmission System
`Architecture,” filed Jul. 9, 1999, US. application Ser. No.
`09/349,478.
`US. Patent Application entitled “Transmission Control
`Protocol/Internet Protocol (TCP/IP) Packet-Centric Cable
`Point
`to Multi-Point
`(PtMP) Transmission System
`Architecture,” filed Jul. 9, 1999, US. application Ser. No.
`09/349,474.
`
`BACKGROUND OF THE INVENTION
`
`1. 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.
`2. 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 br