1、 TECHNICAL REQUIREMENT T1.TRQ.8-2002 Technical Requirement on WWINA (Wireless Wideband InterNet Access) - Stage 1 Air Interface Requirements Prepared by T1P1.4 Working Group on Wireless Wideband InterNet Access (WWINA) Problem Solvers to the Telecommunications Industry A Word from ATIS and Committee
2、 T1 Established in February 1984, Committee T1 develops technical standards, reports and requirements regarding interoperability of telecommunications networks at interfaces with end-user systems, carriers, information and enhanced-service providers, and customer premises equipment (CPE). Committee
3、T1 is sponsored by ATIS and is accredited by ANSI. T1.TRQ.8-2002 Published by Alliance for Telecommunications Industry Solutions 1200 G Street, NW, Suite 500 Washington, DC 20005 Committee T1 is sponsored by the Alliance for Telecommunications Industry Solutions (ATIS) and accredited by the American
4、 National Standards Institute (ANSI). Copyright 2003 by Alliance for Telecommunications Industry Solutions All rights reserved. No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher. For inform
5、ation contact ATIS at 202.628.6380. ATIS is online at . Printed in the United States of America. T1.TRQ.8-2002 Technical Requirement on WWINA (Wireless Wideband InterNet Access) - Stage 1 Air Interface Requirements Approved May 2002 Abstract This document outlines the requirements for the Wireless W
6、ideband InterNet Access (WWINA) Air Interface (AI) standard that enables wireless portability and nomadic roaming subscriber services that compete with the DSL and cable modem markets. T1.TRQ.8-2002 Table of Contents 1 PURPOSE. 1 2 DOCUMENT SCOPE 1 3 ABBREVIATIONS AND ACRONYMS 1 4 AIR INTERFACE DESC
7、RIPTION . 2 5 REQUIREMENTS . 2 5.1 SERVICE REQUIREMENTS 2 5.1.1 STANDARD IP APPLICATIONS 2 5.1.2 DEVICE REGISTRATION. 3 5.1.3 ACCESS TERMINAL CONNECTIVITY. 3 5.1.4 AUTHENTICATION FUNCTIONS 3 5.1.5 QOS MECHANISMS 3 5.1.6 SESSION SERVICES 3 5.2 DEPLOYMENT REQUIREMENTS. 3 5.2.1 RF FREQUENCY PLAN 3 5.2.
8、2 DEPLOYMENT MODEL . 4 5.2.3 AT INSTALLATION. 4 5.3 AIR INTERFACE PERFORMANCE REQUIREMENTS 4 5.3.1 GRADE OF SERVICE (GOS) FOR SIMULTANEOUS SESSION USERS 4 5.3.2 BSR CAPACITY . 4 5.3.3 USER DATA RATE MANAGEMENT. 5 5.3.4 DATA RATES 5 5.3.5 PORTABILITY 5 ii T1.TRQ.8-2002 Technical Requirement on WWINA
9、(Wireless Wideband InterNet Access) - Stage 1 Air Interface Requirements 1 Purpose This document outlines the requirements for the Wireless Wideband InterNet Access (WWINA) Air Interface (AI) standard that enables wireless portability and nomadic roaming subscriber services that compete with the DSL
10、 and cable modem markets. 2 Document Scope The scope of this document is to define requirements for all aspects of the WWINA air interface. 3 Abbreviations and Acronyms The abbreviations and acronyms used in this document are described as follows: 3G 3RDGeneration AI Air Interface AT Access Terminal
11、 (represents functional entity) BSR Base Station Router (represents functional entity) CDMA Code Division Multiple Access FTP File Transfer Protocol GoS Grade of Service GSM Global System for Mobile communications IP Internet Procotol kbps Thousand bits per second Mbps Million bits per second MHz Me
12、ga Hertz QoS Quality of Service RF Radio Frequency TCP Transmission Control Protocol TDMA Time Division Multiple Access VoIP Voice over IP VPN Virtual Private Network W-CDMA Wideband Code Division Multiple Access WWINA Wireless Wideband InterNet Access 1 T1.TRQ.8-2002 The following terms are used as
13、 defined in the context of this document: May, may not: Indicates a course of action permissible within the limits of the standard. Shall, shall not: Identifies requirements to be followed strictly to conform to the standard and from which no deviation is permitted. 4 Air Interface Description The W
14、WINA air interface (AI) is optimized for high-speed packet data services that operate on a separate, data-optimized channel. These requirements define a non-line-of-sight wireless internet air interface for full screen, full performance multi-media devices in contrast to other 3G wireless data syste
15、ms that primarily target handset devices. The air interface provides for portable Access Terminal (AT) devices with improved performance when compared to other systems that are targeted for high-mobility user devices. More specifically, the AI presented in this specification optimizes the following
16、performance attributes: System data speeds; System coverage/range; Network capacity; Minimum network complexity; and Grade-of-Service and Quality-of-Service management. 5 Requirements 5.1 Service Requirements 5.1.1 Standard IP Applications The AI shall allow any Internet Protocol (IP) capable applic
17、ation to function, given the data speed performance requirements noted herein, including but not limited to: Full screen, full graphic web browsing; E-mail with attachments, both upload and download without size limitations; FTP upload and download; Uplink/downlink video and audio streaming (e.g., v
18、ideo teleconferencing, video chat room, etc); Virtual Private Network (VPN) connections; Instant messaging; On-line multi-player gaming; and File sharing. 2 T1.TRQ.8-2002 5.1.2 Device Registration The WWINA AI shall provide device registration messaging that can be used by the network to support use
19、r roaming on systems other than the system for which the user has subscribed service. 5.1.3 Access Terminal Connectivity The WWINA AI shall provide the user with “Always-on” connectivity. The connectivity from the wireless AT device to the Base Station Router (BSR) shall be automatic and transparent
20、 to the user. 5.1.4 Authentication Functions The WWINA AI shall provide the following authentication messaging: Authentication of the AT. Authentication of the accessing user. Prevention of “in-session” cloning. 5.1.5 QoS Mechanisms The WWINA AI shall support the following quality of service (QoS) m
21、echanisms: Establishment of multiple, optional QoS parameters on a per traffic flow basis. Mapping of AI QoS mechanisms to external, end-to-end QoS mechanisms. Persistence and priority QoS parameters. The WWINA AI may also support delay, jitter, and error rate QoS parameters, among others, on a per
22、traffic flow basis. 5.1.6 Session Services The WWINA AI shall enable support for request of session services between the AT and BSR on a traffic flow basis. Session services may include header compression, VoIP vocoder operation, and split TCP/IP operation. 5.2 Deployment Requirements WWINA is desig
23、ned for deployment within existing and future RF bands. 5.2.1 RF Frequency Plan The WWINA AI RF system frequency plan shall be based on a 1.25 MHz bandwidth and increments thereof to allow co-deployment with existing high mobility systems. Guard band spectrum requirements for co-deployments with sys
24、tems shall be compatible with existing standards. 3 T1.TRQ.8-2002 5.2.2 Deployment Model The AI deployment model for WWINA shall support an overlay for footprints such as GSM, GPRS, EDGE, TDMA (IS-136), W-CDMA, and CDMA2000 systems. The AI link budget shall provide margin sufficient for non-line-of-
25、sight operation of the AT within typical home and office building environments. 5.2.3 AT Installation The WWINA AT shall be designed for simple installation and service activation by the user (e.g., no truck rolls). 5.3 Air Interface Performance Requirements The design of the WWINA AI provides optim
26、al performance for data communications within the area of coverage of a wireless Internet BSR as described below. 5.3.1 Grade of Service (GoS) for Simultaneous Session Users The AI shall support a GoS for each user of 6 seconds webpage download time average with 80 users in session in a single secto
27、r of a single 1.25 MHz WWINA channel.15.3.2 BSR Capacity The WWINA BSR shall support at least 1,000 service subscriptions per 3-sector cell for a single 1.25 MHz WWINA channel at 256 kbps average user data speed. 1Simulation/Test Conditions for Requirement 5.3.1 GoS for Simultaneous Session Users: C
28、lient Model: 1. Web Browsing using HTTP 1.1. 2. Fixed 59 kbyte page size - 11 kbyte main page with six (6) each 8 kbytes objects per page. 3. 60 second mean page request inter-arrival time - exponentially distributed. 4. 32,768 byte maximum receive TCP window size. 5. Web content loaded on a server
29、that is local to the basestation. Constraints: 1. The maximum forward link rate must be constrained to the data rate achievable per the 5.3.4.2 requirement (specified at 1 Mbps). 2. The maximum reverse link rate must be constrained to the data rate achievable per the 5.3.4.6 requirement (specified a
30、t 500 kbps). 3. Maximum achievable signal to noise conditions may be used. 4 T1.TRQ.8-2002 5.3.3 User Data Rate Management The WWINA AI shall support automatic selection of optimized user data rates that are consistent with the constraints of the RF environment. The AI shall provide for graceful red
31、uction in user data rates, on the forward and reverse links, as a mechanism to maintain a consistent frame error rate performance. The WWINA AI may also support the ability for a service provider to control the maximum/minimum downlink and uplink data rates on a per user basis. 5.3.4 Data Rates 5.3.
32、4.1 The WWINA AI shall support 1.7 Mbps peak per sector data rates on the Forward/Down Link, as a minimum. 5.3.4.2 The WWINA AI shall support 1.0 Mbps average per sector data rates on the Forward/Down Link, as a minimum. 5.3.4.3 The WWINA AI shall support system assignable user data rates up to 365
33、kbps on the Forward/Down Link. 5.3.4.4 The WWINA AI may support system assignable user data rates up to 1.7 Mbps on the Forward/Down Link. 5.3.4.5 The WWINA AI shall support 1.6 Mbps peak per sector data rates on the Reverse/Up Link, as a minimum. 5.3.4.6 The WWINA AI shall support 500 kbps average
34、per sector data rates on the Reverse/Up Link, as a minimum. 5.3.4.7 The WWINA AI shall support system assignable user data rates up to 221 kbps on the Reverse/Up Link. 5.3.5 Portability The WWINA AI shall support the following portability operations: 5.3.5.1 Stationary operation of the AT device. 5.3.5.2 Pedestrian speed mobility operation of the AT device. 5.3.5.3 Nomadic portability of the AT device between user locations (e.g., office, home, airport lounge, library, etc.). 5
