`
`2007-01-12
`
`IEEE C802.16m-07/007
`
`
`
`Project
`
`Title
`
`Date
`Submitted
`
`Source(s)
`
`Re:
`
`Abstract
`
`Purpose
`
`Notice
`
`Release
`
`Patent
`Policy and
`Procedures
`
`IEEE 802.16 Broadband Wireless Access Working Group <http://ieee802.org/16>
`
`IEEE 802.16m Requirements
`
`2007-01-12
`
`Wookbong Lee,
`Binchul Ihm,
`Ronny (Yong-Ho) Kim,
`LG Electronic Inc.
`LG R&D Complex, 533 Hogye-
`1dong, Dongan-gu, Anyang, 431-
`749, Korea
`
`Call for Initial Input
`
`Voice: +82-31-450-1879
`Fax:
` +82-31-450-7912
`[mailto:ronnykim@lge.com]
`
`This contribution introduces requirements to 802.16m for discussion.
`
`This document introduces a 802.16m requirements
`This document has been prepared to assist IEEE 802.16. It is offered as a basis for discussion and is not
`binding on the contributing individual(s) or organization(s). The material in this document is subject to
`change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or
`withdraw material contained herein.
`The contributor grants a free, irrevocable license to the IEEE to incorporate material contained in this
`contribution, and any modifications thereof, in the creation of an IEEE Standards publication; to copyright
`in the IEEE’s name any IEEE Standards publication even though it may include portions of this
`contribution; and at the IEEE’s sole discretion to permit others to reproduce in whole or in part the resulting
`IEEE Standards publication. The contributor also acknowledges and accepts that this contribution may be
`made public by IEEE 802.16.
`The contributor is familiar with the IEEE 802.16 Patent Policy and Procedures
`<http://ieee802.org/16/ipr/patents/policy.html>, including the statement "IEEE standards may include the
`known use of patent(s), including patent applications, provided the IEEE receives assurance from the patent
`holder or applicant with respect to patents essential for compliance with both mandatory and optional
`portions of the standard." Early disclosure to the Working Group of patent information that might be
`relevant to the standard is essential to reduce the possibility for delays in the development process and
`increase the likelihood that the draft publication will be approved for publication. Please notify the Chair
`<mailto:chair@wirelessman.org> as early as possible, in written or electronic form, if patented technology
`(or technology under patent application) might be incorporated into a draft standard being developed within
`the IEEE 802.16 Working Group. The Chair will disclose this notification via the IEEE 802.16 web site
`<http://ieee802.org/16/ipr/patents/notices>.
`
`
`
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`
`
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`0
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`2007-01-12
`
`IEEE C802.16m-07/007
`
`Requirements for 802.16m
`Wookbong Lee, Binchul Ihm, Ronny (Yong-Ho) Kim
`LG Electronics, Inc.
`
`Introduction
`
`1.
`
`
`IEEE 802.16m amends the IEEE 802.16 WirelessMAN-OFDMA specification to provide an
`advanced air interface for operation in licensed bands. It will meet the cellular layer requirements of
`IMT-Advanced next generation mobile networks [1]. It will be designed to provide significantly
`improved performance compared to other high rate broadband cellular network systems. For the next
`generation mobile networks, it is important to consider increasing peak, sustained data rates,
`corresponding spectral efficiencies, system capacity and cell coverage as well as decreasing latency
`and providing Quality-of-Service while carefully considering overall system complexity.
`
`
`
`1.1 System performance of systems in legacy spectrum
`The following table shows system performance of current system or candidate for IMT-2000.
`
`Carrier
`frequency
`
`Bandwidth
`
`Duplex
`
`Peak data rate
`DL
`
`UL
`
`Spectral efficiency
`DL
`UL
`
`2GHz
`
`5 MHz
`
`FDD
`
`14Mbps
`@ 5MHz
`
`5.8Mbps
`@ 5MHz
`
`0.8bps/Hz
`
`0.3bps/Hz
`
`2GHz
`
`1.25MHz
`(15 channel/
`max 5MHz)
`
`FDD
`
`3.1Mbps
`@ 1.25MHz
`
`1.8Mbps
`@ 1.25MHz
`
`1bps/Hz
`
`0.3bps/Hz
`
`3GPP
`WCDMA
`(HSPA)
`3GPP2
`CDMA2000
`(1xEVDO-
`RevB)
`
`
`
`
`
`
`2.5GHz
`
`TDD
`
`1.9bps/Hz
`*
`
`0.8bps/Hz
`*
`
`8Mbps*
`46Mbps* /
`IEEE 802.16
`5, 7, 8.75,
`/14Mbps**
`32Mbps**
`WiMAX [2]
`10 MHz
`@ 10MHz
`@ 10MHz
`Table 1. system performance for IMT-2000, * : DL/UL = 3, ** : DL/UL = 1, all for 2x2 MIMO or
`CSM
`
`
`
`
`
`
`
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`1
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`2007-01-12
`
`IEEE C802.16m-07/007
`
`
`
`
`
`Dupl
`ex
`
`Peak data rate
`
`DL
`
`UL
`
`Table 2 shows system requirements for ongoing projects for beyond IMT-2000 broadband wireless
`communication systems.
`Bandwidt
`h
`(MHz)
`
`Spectral efficiency
`
`DL
`
`UL
`
`Mobility
`support
`
`[1.25],[1.6
`],2.5,5,10,
`15,20
`~20(in
`1.25MHz
`block)
`1.25,5,
`10,15,20
`2.5,5,10,
`20,30,40
`
`TDD/
`FDD
`
`FDD
`
`FDD
`
`TDD
`
`3GPP
`LTE [3]
`
`3GPP2
`UMB[4]
`
`IEEE
`802.20
`[5]
`
`
`
`100Mbps
`@ 20MHz
`
`50Mbps
`@ 20MHz
`
`3~4 times Better
`than WCDMA
`
`2~3 times Better
`than WCDMA
`
`500Mbps
`@ 20MHz
`
`150Mbps
`@ 20MHz
`
`Outdoor high
`Outdoor high
`speed user
`speed user
`1bps/Hz/Sector
`3bps/Hz/Sector
`3km/h
`3km/h
`2bps/Hz/Sector
`1bps/Hz/Sector
`120km/h
`120km/h
`1.5bps/Hz/Sector
`0.75bps/Hz/Sector
`Table 2. system requirement for beyond IMT-2000
`
`18Mbps
`@ 5MHz
`
`9Mbps
`@ 5MHz
`
`~350km/h
`
`~350km/h
`
`~250km/h
`
`802.16m requirements
`2.
`Since IEEE 802.16m shall meet the cellular layer requirements of IMT-Advanced next generation
`mobile networks, it is important to understand what kinds of features and technologies are required
`for the IMT-Advanced.
`2.1 Key features of IMT-Advanced
`As identified in various documents including ITU-R M.1645, IMT-Advanced can be as following:
`-
`High degree of commonality of design worldwide
`-
`Compatibility of services within IMT-Advanced and with the fixed networks
`-
`High quality
`-
`Small terminal suitable for worldwide use
`-
`Worldwide roaming capability
`-
`Capability for multimedia applications within a wide range of services and terminals
`Systems beyond IMT-2000, for which there may be a need for a new wireless access technology to
`be developed around the year 2010, capable of supporting high data rates with high mobility. High
`mobility here covers high speed on highways or fast trains (60km/h to 250km/h, or more.) It is
`predicted that potential new radio interfaces will need to support data rates of up to approximately
`100Mbps for high mobility such as mobile access and up to approximately 1Gbps for low mobility
`such as nomadic/local wireless access, by around the year 2010. [6]
`
`
`
`
`
`
`
`
`
`
`2
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`IEEE C802.16m-07/007
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`2.2 Key technologies of IMT-Advanced
`Key technologies of IMT-Advanced can be listed as below [6]:
`
`1.
`System related technologies
`- Voice over IP (VoIP)
`- Optimization of IP,
`- Fault-tolerant network architecture
`- Mobile platform technology
`- Security and privacy
`- Cryptography
`- Authentication and mobile electronic commerce
`- Billing
`-
`Intelligent data filtering
`2.
`Access network and radio interface
`- Modulation and coding schemes
`- Multiple access schemes
`- Adaptive radio interface
`- New antenna concepts and technologies
`- Handover between different radio interfaces (vertical and horizontal)
`- Dynamic QoS control
`3.
`Utilization of spectrum
`- Multiple Input Multiple Output (MIMO)
`- Adaptive antennas
`- Adaptive dynamic channel assignment
`- Spectrum sharing
`
`
`2.3 802.16m Requirements
`
`2.3.1 General Requirements
`-
`IEEE 802.16m architecture shall be flexible to support required services from ITU-R.
`-
`IEEE 802.16m system shall support different cell sizes which are expected for cellular layer
`systems.
`IEEE 802.16m system shall provide seamless interworking with legacy radio access systems
`including legacy 802.16 systems.
`IEEE 802.16m shall provide high spectral efficiency up to 10bps/Hz. In order to provide high
`spectral efficiency, IEEE 802.16m system shall support key technologies of IMT-Advanced.
`
`-
`
`-
`
`
`
`
`
`
`
`
`3
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`IEEE C802.16m-07/007
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`- Required QoS for IMT-Advanced shall be provided including end-to-end latency, throughput, and
`error performance.
`IEEE 802.16m system shall provide powerful and efficient security mechanism to protect network,
`system, and user.
`
`-
`
`
`2.3.2 System Requirements
`2.3.2.1 Air Interface Requirement
`IEEE 802.16m specification shall meet the following performance requirement.
`Characteristic
`Requirement
`1Gbps @ Nomadic
`100Mbps @ High mobility
`TBD
`TBD
`TBD
`Scalable bandwidth
`including 5, 7, 8.75, 10 MHz
`Frequency is expected to be decided in
`WRC07
`Table 3. Proposed air interface requirement for IEEE 802.16m
`
`Peak Data Rate
`
`Expected spectral
`efficiency
`
`Downlink
`
`Uplink
`Micro cell (DL/UL)
`Macro cell (DL/UL)
`
`Bandwidth
`
`Center frequency
`
`
`2.3.2.2 QoS requirements
`IMT-Advanced system shall support the MAC level QoS to meet the end user QoS requirements for
`the various applications. The system should support the following types of services with different data
`rates, delay, and packet error rates.
`-
`Conversational/Real-time Services
`-
`Streaming Services
`-
`Interactive Services
`-
`Background Services
`The system should realize low-delay and highly reliable radio transmission using error control
`techniques, and enable flexible allocation of radio resources depending on the required QoS.
`Minimizing the system latency under various conditions (e.g. handover, re-entry from Idle Mode, and
`packet transmission) should be required.
`
`Table 4 shows the QoS classes and profiles for the IMT-Advanced system into Conversational,
`Streaming, Interactive and Background [8]. Table 4 shows an example of parameters. Parameters
`shall be considered and values shall be decided for 802.16m requirements.
`
`
`
`
`
`
`
`
`4
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`IEEE C802.16m-07/007
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`Table 4. QoS Classes and Profiles
`
`Conversational Streaming
`
`Interactive
`
`Background
`
`Traffic
`Class
`
`Fundamental
`Characteristics
`
`Preserve time relation
`(variation) between
`information entities of
`the stream Conversa-
`tional pattern
`(stringent and low
`delay)
`
`Preserve time relation
`(variation) between
`information entities of
`stream
`
`Request response
`pattern
`Preserve payload
`content
`
`Example of the
`Application
`
`Voice
`
`Streaming Video
`
`Web browsing
`
`Destination is not
`expecting the data
`within a certain time
`Preserve payload
`content
`
`Background download
`of email
`
`Allowed delay
`
`Allowed error
`rate
`
`Maximum
`Bitrate
`
`Transfer Delay
`(ms)
`
`< 150ms(high quality)
`< 400ms(minimum)
`
`< 10 sec(initial delay)
`
`< 4sec/page
`
`unspecified
`
`< 3%(frame error rate)
`
`< 2%(packet loss rate)
`
`0%
`
`0%
`
`Very low rate Data: ≤ 16 kbps
`Low rate Data & Low Multimedia: ≤ 144 kbps
`Medium multimedia: ≤ 2 Mbps
`High multimedia: ≤ 30 Mbps
`Super high multimedia: 30 Mbps ~ 100 Mbps / 1 Gbps
`
`100 ~ maximum value
`
`280 ~ maximum value
`
`
`
`
`
`The characteristics and examples of the above mentioned QoS classes are as described below.
`- The Conversational class means the traffic communicated in real time, which is sensitive in delay
`or jitter. This traffic class includes Voice over IP.
`- The Streaming class means the traffic occurring when the user receives the video and audio
`service in real time. This traffic class is sensitive to delay or jitter.
`- The Interactive class means the traffic occurring when the user requests and receives data to/from
`the server. This traffic class includes web browsing.
`- The Background class shows the typical best effort characteristics. No transmission delay is
`considered when transmitting data in this class. It has very low data packet transmission error rate.
`This traffic class includes email, SMS and file downloading.
`
`
`The following parameters are used to classify QoS.
`- Maximum bit rate (kbps): The number of bits transmitted from/to the IMT-Advanced system for
`certain period of time.
`- Allowed delay: The delay that meets QoS of the service
`- Allowed error rate: The error rate that meets QoS of the service
`
`2.3.2.3 Security requirements
`Requirements for Secrecy and Privacy
`- More powerful, enhanced (high-speed/small-size and low-power) confidentiality and integrity
`protection for traffic transmission, control information
`- More efficient, robust user/device authentication scheme
`- Location privacy scheme
`
`
`
`
`
`5
`
`
`
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`IEEE C802.16m-07/007
`
`- Reliable and flexible service availability protection scheme
`
`
`
`
`
`Requirements for Inter-working Security
`- Delay constrained handover and roaming support without changing the security level (Especially,
`seamless mobility across heterogeneous networks with the negotiation of security
`mechanisms/algorithms)
`- Minimum performance/capacity degradation due to the security feature provisioning
`
`
`Reference
`
`[1] P802.16m PAR
`[2] WiMAX Forum, 2006, “Mobile WiMAX – Part I: A Technical Overview and Performance Evaluation.”
`[3] 3GPP TR25.913 V7.3.0, 2006 March, “Requirements for Evolved UTRA (E-UTRA) and Evolved UTRAN
`(E-UTRAN).”
`[4] 3GPP2 S.R0113-0, 2006 May, “cdma2000 Enhanced Packet Data Air Interface System - System
`Requirements Document.”
`[5] IEEE 802.20 PD-06r1, 2004 July, “System Requirements for IEEE 802.20 Mobile Broadband Wireless
`Access Systems – Version 14.”
`[6] Rec. ITU-R M.1645, 2003, “Framework and overall objectives of the future development of IMT-2000 and
`systems beyond IMT-2000.”
`[7] 3GPP & 3GPP2 Spatial Channel Model AHG, SCM Text V7.0, “Spatial Channel Model Text Description.”
`[8] TTA IMT-Advanced requirements
`
`
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`
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