TR 101 031 V2.2.1 (1999-01)
`
`Technical Report
`
`Broadband Radio Access Networks (BRAN);
`ngh PErformance Radio Local Area Network (HIPERLAN)
`Type 2;
`Requirements and architectures for
`wireless broadband access
`
`mk<%>>
`
`
`Microsoft Corporation
`Exhibit 1021-00001
`
`Microsoft Corporation
`
`

`

`2
`
`TR 101 031 V2.2.1 (1999-01)
`
`Reference
`
`RTR/BRAN-0022001 (9j001005.PDF)
`
`Keywords
`HIPERLAN, architecture, IP, ATM, UMTS,
`multimedia
`
`ETSI
`
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`
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`
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`Individual copies of this ETSI deliverable
`can be downloaded from
`
`http://www.etsi.org
`If you find errors in the present document, send your
`comment to: edlt0r@etsl.fr
`
`Copyright Notification
`
`No part may be reproduced except as authorized by written permission.
`The copyright and the foregoing restriction extend to reproduction in all media.
`
`© European Telecommunications Standards Institute 1999.
`All rights reserved.
`
`ETSI
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`

`

`3
`
`TR 101 031 V2.2.1 (1999-01)
`
`Conte nts
`
`Intellectual Property Rights ................................................................................................................................ 5
`
`Foreword ............................................................................................................................................................ 5
`
`Introduction ........................................................................................................................................................ 5
`
`1
`
`2
`
`3
`3.1
`3.2
`
`4
`
`4.1
`4.2
`4.3
`4.4
`
`5
`5.1
`5.1.1
`5.1.2
`5.1.3
`5.2
`
`5.2.1
`5.2.2
`
`5.2.3
`5.2.4
`5.2.5
`5.3
`5.3.1
`5.3.2
`5.3.3
`5.3.4
`5.4
`5.5
`5.5.1
`
`5.5.2
`
`6
`
`6.1
`6.2
`6.3
`6.4
`
`7
`7.1
`
`Scope ........................................................................................................................................................ 7
`
`References ................................................................................................................................................ 7
`
`Definitions and abbreviations .................................................................................................................. 8
`Definitions ......................................................................................................................................................... 8
`Abbreviations ..................................................................................................................................................... 9
`
`Overview ................................................................................................................................................ 10
`
`HIPERLAN Type 1, Wireless 8802 Local Area Networks .............................................................................. 10
`HIPERLAN Type 2, short range wireless access to IP, ATM and UMTS networks ....................................... 11
`HIPERACCESS, remote wireless access to IP and ATM networks ................................................... 11
`
`HIPERLINK, wireless interconnection ............................................................................................................ 11
`
`Requirements ......................................................................................................................................... l l
`Application environments ................................................................................................................... 11
`
`Types of HIPERLAN application environments ........................................................................................ 11
`Types ofnetworks ...................................................................................................................................... 12
`Usage environments. .................................................................................................................................. 12
`User scenarios .................................................................................................................................................. 12
`
`Infrastructure replacement scenario .................................................................................. 13
`
`Cordless access scenario ............................................................................................................................ 13
`
`Specialized portable applications scenario ................................................................................................. 14
`Domestic premises scenario ....................................................................................................................... 14
`Industrial and transportation scenario ........................................................................................................ 15
`Application requirements ................................................................................................................. | 6
`
`Office HIPERLAN deployment scenario ................................................................................................... 16
`Industrial HIPERLAN deployment scenarios ............................................................................................. 17
`Public HIPERLAN deployment scenario ................................................................................................... 18
`Other HIPERLAN deployment scenarios ................................................................................................... 19
`Summary of data rate requirements for HIPERLAN deployments ....................................... 20
`
`Spectium requirements .................................................................................................................................... 2 0
`Wireless access networks for office use ..................................................................................................... 20
`
`Wireless access networks for public use .................................................................................................... 21
`
`General considerations ........................................................................................................................... 21
`
`Regulatory constraints ...................................................................................................................................... 21
`Radio technology constraints ........................................................................................................................... 21
`User data security and privacy requirements ................................................................................................... 22
`Human safety ................................................................................................................................................... 22
`
`Reference Model and Architecture ........................................................................................................ 22
`Reference model .............................................................................................................................................. 23
`
`7.1.1
`7.1.1.1
`
`7.1.1.2
`7.1.2
`
`7.1.3
`7.1.4
`7.1.4.1
`7.1.4.2
`7.1.4.3
`7.1.5
`7.2
`
`Services and capabilities
`.............................. 23
`
`Services ...................................................... 23
`
`
`Supporting capabilities ............................................................................................... 23
`Reference model ......................................................................................................................................... 23
`
`Layer architecture ....................................................................................................................................... 25
`Interworking ........................................... 27
`
`IP Interworking ..................................................................................................................................... 27
`ATM Interworking................................................................................................................................ 27
`UMTS Interworking ............................................................................................................................. 27
`Addressing.................................................................................................................................................. 28
`Mobility support .............................................................................................................................................. 28
`
`ETSI
`
`Microsoft Corporation
`Exhibit 1021-00003
`
`Microsoft Corporation
`
`

`

`4
`
`TR 101 031 V2.2.1 (1999-01)
`
`7.3
`7.3.1
`7.3.2
`
`7.3.3
`7.3.4
`
`7.3.5
`7.3.6
`7.3.7
`7.3.7.1
`7.3.7.2
`
`7.3.8
`7.4
`7.5
`
`Requirements imposed on radio sub-system .................................................................................................... 28
`Radio range ...................................................................................................................... 28
`
`Data rate ..................................................................................................................................................... 28
`
`Delay spread ............................................................................................................................................... 28
`Antennas ..................................................................................................................................................... 28
`
`Capacity and coverage ............................................................................................................................... 29
`QoS, user data rate, transfer latency and transfer delay variance ......................................................... 29
`
`Residual errors ........................................................................................................................................... 29
`Detected errors ..................................................................................................................................... 29
`Undetected errors ........................................................................................................ 29
`
`................................................................................. 29
`Radio Resource Management...
`End user requirements ............................................................................................ 30
`Network management ..................................................................................................................................... 30
`
`
`
`Bibliography ..................................................................................................................................................... 31
`
`History .............................................................................................................................................................. 32
`
`ETSI
`
`Microsoft Corporation
`Exhibit 1021-00004
`
`Microsoft Corporation
`
`

`

`5
`
`TR 101 031 V2.2.1 (1999-01)
`
`Intellectual Property Rights
`
`IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
`pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
`in SR 000 314: "Intellectual Property Rights (IPRs); Essential, orpotentially Essential, IPRS notified to ETSI in respect
`ofETSI standards ”, which is available free of charge from the ETSI Secretariat. Latest updates are available on the
`ETSI Web server (http://www.etsi.org/ipr).
`
`Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
`can be given as to the existence of other IPRs not referenced in SR 000 314 (or the updates on the ETSI Web server)
`which are, or may be, or may become, essential to the present document.
`
`Foreword
`
`This Technical Report (TR) has been produced by ETSI Project Broadband Radio Access Networks (BRAN).
`
`The present document describes the requirements and architectures that are applicable to ngh PErformance Radio
`Local Area Network (HIPERLAN) Type 2. HIPERLAN Type 3 has been subsumed by licence exempt HIPERACCESS
`[2f]. HIPERLAN Type 4 has been renamed to HIPERLINK. The latter two are described in separate reports.
`
`Introduction
`
`Wireless networks have enjoyed an increased demand from the general public as well as from business and other
`professional users.
`
`Wireless networks in existence today range from cellular phones to high speed digital networks supporting high speed
`computer communications. They operate in licensed as well as in unlicensed frequency bands.
`
`At the same time, wired telecommunications networks have shown a remarkable evolution towards higher transmission
`rate and support for multi-media applications rather than simple voice oriented services.
`
`ETSI has recognized the trend towards better and faster wireless networking demands from all kinds of users. Working
`with the CEPT resulted, in the period 1990 through 1992, in spectrum designations in the 2,4 GHZ ISM band, in the
`5,2 GHZ band and in the l7,'l GHZ band to allow the development ofa variety of standards for wireless networks. The
`2,4 GHZ ISM band was intended for medium speed “wide band data systems using spread spectrum techniques". The
`latter two bands were assigned to HIPERLANs, a collective reference to High Performance Radio Local Area Networks.
`ETSI has identified the need for a family of HIPERLAN standards that together support a wide variety of usage
`scenarios and applications.
`
`HIPERLAN Type 1 provides an ISO/IEC 8802-1 [5] compatible wireless local area network.
`
`HIPERLAN Type 2 is intended to provide short range broadband wireless access to Internet Protocol (IP),
`Asynchronous Transfer Mode (ATM) networks and Universal Mobile Telecommunications System (UMTS).
`
`HIPERLAN Type 1 operates in the 5,2 GHZ licence exempt band; Type 2 is intended to operate in the 5,2 GHZ band
`and other 5 GHZ bands (note 1); HIPERLINK is intended to operate in 17,2 GHZ band. The CEPT has designated
`100 MHZ of spectrum in the 5 GHZ band for HIPERLANs with a further 50 MHZ available at the discretion of national
`administrations and 200 MHZ in the 17 GHZ band. (See CEPT Recommendation T/R 22-06 [1] and ERC Decision
`96/03 [6]). Because the current allocation in the 5,2 GHZ band is expected not to be sufficient for the projected needs of
`users and their applications, ETSI has initiated discussions with CEPT aimed at making more spectrum available in this
`range.
`
`NOTE 1: Other frequency bands around 4 GHZ to 6 GHZ may be used on a licensed basis.
`
`NOTE 2: The FCC has allocated in the USA 300 MHZ of spectrum at 5 GHZ band referred to as the U-NII
`(Unlicensed National Information Infrastructure) bands, in which HIPERLAN devices may be operated.
`
`Developments in other types ofwireless networks have increased the scope and potential applications of such networks.
`A primary example is UMTS (or IMT-2000 as it is known outside Europe). UMTS, in its various forms, supports a wide
`
`ETSI
`
`Microsoft Corporation
`Exhibit 1021-00005
`
`Microsoft Corporation
`
`

`

`6
`
`TR 101 031 V2.2.1 (1999-01)
`
`range ofcommunications services, from cordless services to wide area cellular services. The range of bit rates, with a
`maximum of2 Mbit/s, supported by UMTS is geared primarily towards voice and low quality video as well as data
`services. However, because of spectrum limitations as well as for economic reasons, UMTS will not be able to meet the
`bandwidth demands oftrue, high resolution multi-media communications. These require bit rates in the range of
`10 Mb/s. The required bandwidth is not available in the planned UMTS frequency range and it is likely that the cost to
`users of such bandwidth would be excessive. Furthermore, it is not clear that there exists demand for such high speed
`services beyond the premises ofa business or other organization. On premises, short range wireless networks that do not
`share spectium with UMTS are much more attractive and flexible as a solution to multi-media wireless networking.
`HlPERLANs fill that need. The following figure clarifies the relationship between HlPERLANs and UMTS:
`
`Mobility
`
`A
`
`
`
`UMTSI
`
`lMT-2000
`
`
`
`HIPERLANS
`
`
`
`
`
`
`
`Outdoors
`
`
`
`>
`
`I
`Mb'tls
`
` I
`
`0,02
`
`155
`
`
`‘
`i
`0,2
`2
`20
`
`Figure 1: The relationship between HIPERLANs and LlMTSIIMT-2000
`
`it should be noted that the above does indicates that users may well perceive benefits form being able to access UMTS
`based services from HlPERLAN compatible devices and vice versa.
`
`To date ETSI has published two standards: ETS 300 328 [3] which provides the type approval requirements for data
`networks operating in the 2,4 GHZ ISM band and ETS 300 652 [2] which provides a functional specification of high
`speed ISO 8022 compatible wireless networks.
`
`The present document has been written to assist the ETSl membership as well as the potential users of standards for high
`speed wireless data systems in understanding the applications and concepts that underlie the standards for HlPERLAN
`Type 2.
`
`As this understanding develops during the writing ofthe actual standards, the present document is likely to require
`change. Therefore, it should be treated as a living document rather than a definitive text.
`
`ETSI
`
`Microsoft Corporation
`
`Exhibit 1021-00006
`
`Microsoft Corporation
`
`

`

`7
`
`TR 101 031 V2.2.1 (1999-01)
`
`1
`
`Scope
`
`The scope of the present document is limited to the requirements and architectures for HIPERLAN Types 2.
`HIPERLAN Typel is addressed by ETS 300 652 [2] and its related Conformance Test Specifications, [2a], [2b], [2c]
`and [2d]. HIPERLINK will be described in a TR produced by BRAN.
`
`The requirements address subjects like applications, traffic volumes and traffic pattems that underlie the projected
`spectrum requirements as well as the chosen architectures. The architectures address the communications layer models
`as well as the Rcfcrcncc models that idcntify thc kcy intcrfaccs subjcct to standardization.
`
`The architectures developed in the present document are intended to delineate the boundaries between HIPERLAN
`standards and standards for networks in which HIPERLANs may be used as subsystems or components.
`
`Scope of standardization
`
`The scope ofthe standards for HIPERLAN Types 2 is limited to the air interface specifications, the Data Link Control
`(DLC) layer specifications, the specifications of the management functions and the interworking functions. The DLC
`layer specification includes a specification of the services to be provided.
`
`The ETSI HIPERLAN/2 standards specify subsystems up to and including the DLC Layer. Interworking functions will
`be specified in liaison with other relevant technical standardization bodies.
`
`2
`
`References
`
`The following documents contain provisions which, through reference in this text, constitute provisions of the present
`document.
`
`I References are either specific (identified by date ofpublication, edition number, version number, etc.) or
`non-specific.
`
`I For a specific reference, subsequent revisions do not apply.
`
`I For a non-specific reference, the latest version applies.
`
`I A non-specific reference to an ETS shall also be taken to refer to later versions published as an EN with the same
`number.
`
`[1]
`
`[2]
`
`[2a]
`
`[2b]
`
`[20]
`
`[2d]
`
`CEPT Recommendation T/R 22-06: "Harmonized radio frequency bands for High Performance
`Radio Local Area Networks (HIPERLANs) in the 5 Gl-lz and 17 GHz frequency range".
`
`EN 300 652: "Broadband Radio Access Networks (BRAN); HIgh PErformance Radio Local Area
`Network (HIPERLAN) Type 1; Functional specification".
`
`ETS 300 836-1: "Broadband Radio Access Networks (BRAN); HIgh PERformance Local Area
`Network (HIPERLAN) Type 1; Conformance testing specification; Part 1: Radio type approval
`and Radio Frequency (RF) conformance test specification”.
`
`ETS 300 836-2: "Broadband Radio Access Networks (BRAN); ngh PERformance Local Area
`Network (HIPERLAN) Type 1; Conformance testing specification; Part 2: Protocol
`Implementation Conformance Statement (PICS) proforma specification".
`
`ETS 300 836-3: "Broadband Radio Access Networks (BRAN); High PERformance Local Area
`Network (HIPERLAN) Type 1; Conformance testing specification; Part 3: Test Suite Structure and
`Test Purposes (TSS&TP) specification".
`
`ETS 300 836-4: "Broadband Radio Access Networks (BRAN); HIgh PERformance Local Area
`Network (HIPERLAN) Type 1; Conformance testing specification; Part 4: Abstract Test Suite
`(ATS) specification".
`
`[2e]
`
`Void.
`
`ETSI
`
`Microsoft Corporation
`Exhibit 1021-00007
`
`Microsoft Corporation
`
`

`

`3
`
`TR 101 031 V2.2.1 (1999-01)
`
`TR 101 177: "Broadband Radio Access Networks (BRAN); Requirements and architectures for
`broadband fixed radio access networks (HIPERACCESS)“.
`
`TR 101 378: "Broadband Radio Access Networks (BRAN); Common ETSI - ATM Forum
`reference model for Wireless ATM Access Systems (WACS)“.
`
`ETS 300 328: "Radio Equipment and Systems (RES); Wideband transmission systems; Technical
`characteristics and test conditions for data transmission equipment operating in the 2,4 GHz ISM
`band and using spread spectrum modulation techniques“.
`
`ITU-T Recommendation Q2931 (1995): "Broadband Integrated Services Digital Network
`(B-ISDN) - Digital subscriber signalling system no. 2 (DSS 2) - User-network interface (UNI) -
`Layer 3 specification for basic call/connection control".
`
`ISO/IEC 8802-1: "Information technology -- Telecommunications and information exchange
`between systems -- Local and metropolitan area networks -- Specific requirements -- Part 1:
`Overview of Local Area Network Standards".
`
`ERC Decision 96/03: ”ERC Decision on the harmonized frequency band to be designated for the
`introduction of High Performance Radio Local Area Networks (HIPERLANs)".
`
`ATM Forum Specification UNI 3.1: “User-Network Interface Specification".
`
`ITU-T Recommendation 1.356 (1996): "B-ISDN ATM layer cell transfer performance“.
`
`[2f]
`
`[2g]
`
`[3]
`
`[4]
`
`[5]
`
`[6]
`
`[7]
`
`[8]
`
`3
`
`Definitions and abbreviations
`
`3.1
`
`Definitions
`
`For the purposes of the present document, the following terms and definitions apply:
`
`[local] access: This term is used in the telecommunications sense: short range (< 100 m) wireless access to other,
`possibly wired, networks.
`
`[remote] access: This terms is used in the telecommunications sense: long range (< 10 km) wireless access to other,
`possibly wired, networks. Remote access networks are also referred to as “local loop networks“.
`
`[wireless] access subnetwork: A [wireless] subnetwork that is a physical subset of an access network. It is serviced by
`a single [wireless] access point.
`
`[wireless] access network: The combined [wireless ] subnetworks providing access to a single external network, e.g. an
`ATM switch.
`
`[wireless] access point: A device controlling a single [wireless ] access subnetwork.
`
`asynchronous traffic: Data traffic that characteristically has a statistical arrival and delay distribution. This typifies
`most LAN data traffic.
`
`Business Premises Network (BPN): A network covering a privately owned network.
`
`convergence sublayer: A sublayer that generates no protocol but that provides the wireless DLC layer with the
`information it needs to perform its QoS management functions as required.
`
`data confidentiality: Provisions for the protection of transmitted data from observation by unauthorized stations or
`other monitoring means. One measure for doing that is to implement encryption.
`
`Data Link Control (DLC): Layer 2 ofthe ISO/OSI reference model.
`
`Domestic Premises Network (DPN): A network covering home environment.
`
`downlink: The incoming data direction from a wireless terminal adapter perspective.
`
`ETSI
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`Microsoft Corporation
`Exhibit 1021-00008
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`Microsoft Corporation
`
`

`

`9
`
`TR 101 031 V2.2.1 (1999-01)
`
`eneryption: A means of obtaining data confidentiality. See also: Data confidentiality.
`
`handover: The changing of the path over which information flows between two communicating HIPERLAN nodes
`without being disconnected.
`
`HIPERLAN: HIgh PErfonnance Radio Local Area Network.
`
`interworking: Interaction between dissimilar sub-networks, end systems, or parts thereof, providing a functional entity
`capable of supporting end-to-end communications.
`
`Local Area Network (LAN): A group ofuser stations, each ofwhich can communicate with at least one other using a
`common transmission medium commonly managed.
`
`Protocol Data Unit (PDU): Data unit exchanged between entities at the same ISO layer.
`
`Physical Layer (PI-IV): Layer I ofthe ISO/OSI reference model. The mechanism for transfer of symbols between
`HIPERLAN nodes.
`
`Service Data Unit (SDU): Data unit exchanged between adjacent ISO layers.
`
`time-bounded services: Time-bounded services denotes transfer services with low delay and low delay variance for use
`with voice and other real-time services.
`
`[wireless] terminal adapter: The functional components of a network node that provide the communications selvices
`and the related control functions.
`
`transceiver coverage area: The physical area serviced by a single transceiver.
`
`uplink: The outgoing data direction from wireless terminal adapter perspective.
`
`3.2
`
`Abbreviations
`
`For the purposes of the present document, the following abbreviations apply:
`
`AAL
`AP
`
`ARQ
`ATM
`BER
`
`B-ISDN
`BPN
`
`CATV
`CEPT
`DLC
`DPN
`DSDU
`
`ATM Adaptation Layer
`Access Point
`
`Automatic Retransmission reQuest
`Asynchronous Transfer Mode
`Bit Error Rate
`
`Broadband Integrated Services Digital Network
`Business Premises Network
`
`Community Antenna TeleVision
`Conference Europeenne des administrations des Postes et des Telecommunications
`Data Link Control
`Domestic Premises Network
`DLC Service Data Unit
`
`EY-NPMA
`FEC
`
`Elimination-Yield Non-pre-emptive Priority Multiple Access
`Forward En‘or Correction
`
`Future Public Land Mobile Telecommunications System
`FPLMTS
`High Definition TeleVision
`HDTV
`HIPERACCESS HIgh PErformance Radio ACCESS
`HIPERLAN
`HIgh PErformance Radio Local Area Network
`HIPERLINK
`HIgh PErformance Radio LINK
`IP
`Internet Protocol
`
`ISM
`LAN
`
`LLC
`LME
`MAC
`
`N/A
`OSI
`PCMCIA
`
`Industrial, Scientific and Medical
`Local Area Network
`
`Logical Link Control
`Layer Management Entity
`Medium Access Control
`
`Not Applicable
`Open Systems Interconnection
`Personal Computer Memory Card Interface Association
`
`ETSI
`
`Microsoft Corporation
`Exhibit 1021-00009
`
`Microsoft Corporation
`
`

`

`10
`
`TR 101 031 V2.2.1 (1999-01)
`
`PDA
`PDU
`
`PHY
`QoS
`RF
`SDTV
`SDU
`
`TCP
`UMTS
`UNI
`UTRAN
`VCR
`
`Personal Digital Assistant
`Protocol Data Unit
`
`Physical Layer
`Quality of Sen/ice
`Radio Frequency
`Standard Definition TeleVision
`Service Data Unit
`
`Transport Control Protocol
`Universal Mobile Telecommunications System
`User Network Interface
`UMTS Terrestrial Radio Access Network
`Video Cassette Recorder
`
`4
`
`Overvrew
`
`The BRAN family of standards includes: HIPERLAN Type 1 (high speed Wireless LANs), HIPERLAN Type 2 (short
`range wireless access to IP, ATM and UMTS networks) both operating in the 5 GHz band, HIPERACCESS (fixed
`wireless broadband point-to-multipoint) and HIPERLINK (wireless broadband interconnection) operating in the 17 GHz
`band. This is represented in the figure below together with the operating frequencies and indicative data transfer rates on
`the air interface.
`
`
`HIPERLAN
`Type 1
`
`Wireless 8802
`LAN
`
`
`
`(5 GHz)
`(19 Mbitls)
`
`PHY
`
`HIPERLAN
`Type 2
`Wireless IP,
`ATM and
`UMTS Short
`
`Range Access
`
`HIPER-
`ACCESS
`Wireless IP and
`ATM Remote
`Access
`
`HIPERLINK
`Wireless
`Broadband
`Interconnect
`
`(155 Mbitls)
`
`DLC
`
`PHY
`
`(25 Mbitls)
`
`(various bands)
`(25 Mbitls)
`
`PHY
`
`(17 GHz)
`
`Figure 2: Overview of HIPERLAN Types, HIPERACCESS and HIPERLINK
`
`4.1
`
`HIPERLAN Type 1, Wireless 8802 Local Area Networks
`
`HIPERLAN Type l (HlPERLAN/I) is a wireless local area network that is lSO/TEC 8802-I [5] compatible. lt is
`intended to allow high performance wireless networks to be created, without existing wired infrastructure. Multiple
`HTPERLANs can co-exist in the same geographical area with equitable bandwidth sharing without co-ordination
`between them. In addition HlPERLAN Type 1 can be used as an extension ofa wired local area network.
`
`HIPERLAN/l offers unconstrained connectivity based on directed one-to-one communications as well as one-to-many
`broadcasts. The channel provides both self configurability and flexibility of use thanks to a distributed channel access
`(EY-NPMA) and standardized forwarding feature.
`
`The HIPERLAN/l Functional Specification is given in ETS 300 652 [2].
`
`ETSI
`
`Microsoft Corporation
`Exhibit 1021-00010
`
`Microsoft Corporation
`
`

`

`11
`
`TR 101 031 V2.2.1 (1999-01)
`
`4.2
`
`HIPERLAN Type 2, short range wireless access to IP, ATM
`and UMTS networks
`
`HIPERLAN Type 2 (HIPERLAN/2) is intended to provide local wireless access to IP, ATM and UMTS infrastructure
`networks by both moving and stationary teiminals that interact with access points which, in turn, usually are connected
`to an IP, ATM or UMTS backbone network. A number ofthese access points will be required to service all but the
`smallest networks of this kind and therefore the wireless network as a whole shall support hand-overs of connections
`between access points. Further, such a wireless access network shall be able to provide the Quality of Service (QoS),
`including required data transfer rates, that users expect from a wired IP or ATM network.
`
`4.3
`
`HIPERACCESS, remote wireless access to IP and ATM
`
`networks
`
`HIPERACCESS provides outdoor, high speed (25 Mbit/s typical data rate) radio access, it provides fixed radio
`connections to customer premises and is capable of supporting multimedia applications. (Other technologies such as
`HIPERLAN/2 might be used for distribution within the premises.) HIPERACCESS will allow an operator to rapidly roll
`out a Wide area broadband access network to provide connections to residential households and small businesses.
`However, HIPERACCESS may also be of interest to large organizations wishing to serve a campus and its surroundings
`and to operators oflarge physical facilities such as airports, universities, harbours etc.
`
`4.4
`
`HIPERLINK, wireless interconnection
`
`interconnecting high data rate sources such as (access) networks requires high bit rates and large channel capacities.
`HIPERLINK provides point-to-point interconnection at very high data rates, e.g. up to 155 Mbit/s over distances up to
`150 m.
`
`5
`
`Requirements
`
`This clause deals with the general requirements that underlie the development of the HIPERLAN standards for wireless
`broadband access.
`
`5.1
`
`Application environments
`
`The following subclauses describe a number of application environments. The common denominator of these
`environments is that;
`
`-
`
`-
`
`they are used in a geographically limited area;
`
`they support multimedia services
`
`5.1.1
`
`Types of HIPERLAN application environments
`
`Domestic Premises Network (DPN) environment
`
`The DPN environment covers the home and its immediate vicinity; it typically includes a localized radio extension to a
`broadband network. It is characterized by spot coverage areas, perhaps individual cells, one per home or building.
`Support for mobility beyond the coverage area is outside the scope of the present document.
`
`Business Premises Network (BPN) environment
`
`The BPN environment covers a network covering eg. a company area, university campus hospital, industrial premises,
`airp01ts, train stations, etc. It may offer access, switching and management functions within an arbitrary large coverage
`area serviced by multi-cellular wireless communications facilities. Thus, functions like handover and paging may be
`necessary within this environment.
`
`ETSI
`
`Microsoft Corporation
`Exhibit 1021-00011
`
`Microsoft Corporation
`
`

`

`12
`
`TR 101 031 V2.2.1 (1999-01)
`
`5.1.2
`
`Types of networks
`
`HIPERLANs may be used in a number ofways, for example:
`
`Wireless Access to Public Netwurk
`
`l-lIPERLAN Type 2 may be used to gain access to a public network, for example, to provide Telepoint services.
`
`Wireless Access to Private ]\etwo;k
`
`HIPERLANs may be used to gain access to a private network, for example, business premises or campus networks.
`
`Temporary Network
`
`HIPERLANs may be used to create temporary networks, independent of an established wired local network. Such a
`network may be used semi-permanently, as an alternative for a wired network, and for ad-hoc purposes, for example for
`people to communicate and work on documents during a meeting.
`
`5.1.3
`
`Usage environments.
`
`The tabl