1、TR 1 O1 156 V1.1.5 (1999-04) Technical Report Terrestrial Trunked Radio (TETRA); Technical requirements specification for Digital Advanced Wireless Service (DAWS) STD=ETSI TR LO1 15b-ENGL 1999 3400855 0399778 956 m TR 101 156 V1.1.5 (199944) 2 Reference RTWTETRA-04039 (apcOOifg.PDF) Keywords TETRA,
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3、 65 47 16 Internet secretariatQetsi.fr Individual copies of this ETSI deliverable can be downloaded from http:/www. etsi .o rg If you find errors in the present document, send your comment to: editorQetsi.fr Copyright Notification No part may be reproduced except as authorized by written permission.
4、 The copyright and the foregoing restriction extend to reproduction in ail media. Q European Telecommunications Standards Institute 1999. Au rights reserved. ETSI 3 TR 101 156 V1.1.5 (1999-04) Contents Intellectual Property Rights . 4 Foreword . 4 Introduction. ._ . . ._ ._. . . . . . . . . . . . .
5、. . . . . . . . . 4 1 2 3 4 4.1 5 6 6.1 6.2 7 8 scope. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 . 6 Abbreviations. . . 7 Market Considerations . . . .
6、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Positioning of DAWS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The Scenarios 9 DAWS System Archtecture . ._ _._._.
7、._._ 10 Minimum Complexity Architecture . 11 Maximum Complexity Architecture . ._. ,. . 12 .13 .13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DAWS Frequency Allocation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Suggested work plan. _. _
8、. . . . . . . . . . . . . . . . Bibliography . . 14 History 15 E TSI STD-ETSI TR 101 256-ENGL 2977 W 3400855 0399780 504 m 4 TR 101 156 V1.1.5 (1999-04) In teiiect ual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pert
9、aining to these essential PRs, if any, is publicly available for ETSI members and non-members, and can be found in SR O00 3 14: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available free of charge from the E
10、TSI 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 ched out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in SR O00 314 (or the update
11、s 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 Teirestrial Trunked Radio (IETRA). I n t roduction The present document has been prepared (based upon the finalized work of EP-TETRA
12、) as a communication to the ETSI Membership and Board and as a general working document for EP-TETRA Working Group 4 in the field of Mobile Networking. The present document describes the basic ideas behind Digital Advanced Wireless Services (DAWS), relevant to market aspects and positioning within t
13、he present portfolio of ETSI Projects and Standardization activities. Following the publication of the Strategic Review Committee (SRC6) Report on EII, June 1995 and the Global Multimedia Mobility (GMM) Report, October 1996 an ever increasing pace of activities within the field of Multimedia, Intern
14、etworking and 4th Generation Broadband technologies has been experienced throughout all three ITU Regions. New approved ETSI Projects in this field are EP TIPHON, EP BRAN, and to some extent EP EASI. With formal liaison with the ATM Fomrn, ETSI is well prepared to meet the increasing pressure from t
15、he market to realign capacity and throughput of the wireless world with that of the fixed networks. In order to be successful. both: 1) short time to market; and 2) careful forward migration of second generation Infmucture, have to be addressed. Both these criteria lead to the initiative of building
16、 upon existing standards and already expended effort. Emergence of new generations should happen through evolution not revolution. Well known examples are the current implementation of GPRS (General Packet Radio Services) onto the existing GSM platform to expand throughput and the reuse of GSM Proto
17、col Architectures in the 1 800 and 1 900 MHz bands to expand capacity. Likewise within EP TETRA a number of members (initially SIMOCO, TeleDanmark, BT, Motorola and UK Home Office), based on a study report decided to work on migrating the TETRA Packet Data Optimized DO) wireless networking standard
18、(ETS 300 393 i to 3) to provide full mobility/roamhg and Wireless ATM bit rates up to 155 MbiVs. This enhancement was given the codename DAWS and has already been studied with much interest within the ATM Fom (Working Group WATM). The cellular telephone users have been pampered with seamless on-line
19、 facilities and functions. Full mobility is essential for future hand-held “Wireless WEB-Surfers“ offering continuous transmission of live pictures as well as Automatic Vehicle Location (AVL) and Automatic Person Location (APL). STD-ETSI TR LO1 156-ENGL 1999 3400855 0399783 440 I 5 TR 1 O1 156 V1.1.
20、5 (1 999-04) In the early seventies, some forward-looking heads of laboratories within the old telephone monopolies of Europe proposed the addition of mobility to communication services, not realizing they were giving birth to one of the largest success stones of communications of this century, the
21、digital cellular industry. Now envisage a wireless hand-held WEB-Browsing device (a DAWS terminai) featuring the same mobility as a wireless phone service with throughput enough to process Wireless Packet Voice Telephony (The Mobile TIPHON-Phone) and other future “bit-hungry applications. Just as te
22、lephone subscribers were waiting to go unwired 25 years ago, the exploding Intemetnntranet community is still waiting for a solution which also satisfies the requirements of network operators. DAWS is a valuable addition to the current menu of ETSI Standardization activities. ETSI STD-ETSI TR 101 LS
23、b-ENGL 1999 O 3400855 0399782 387 6 TR 101 156 V1.1.5 (1999-04) 1 Scope The present document is to inform ETSI Members how far the work on DAWS has progressed and to outline the market potential for seamless high data rate mobile services. A proposai for deliverables in this field and an assessment
24、of the time to deliver is presented later in the present document. The DAWS Standard, complying with the ETSI TA Decisions, will be divided into three parts: 1) network aspects including Wireless Node Interlink Protocol Specifications; 2) terminal Air-Interface, including layer 3 entities; 3) authen
25、tication, encryption and security aspects. Current work has shown that major reuse of the ETS 300 393 11 to 3 standard is feasible and highly recommended. 2 References The foilowing documents contain provisions which, ihrough reference in this text, constitute provisions of the present document. 0 R
26、eferences are either specific (identified by date of publication, edition number, version number, etc.) or non-specific. For a specific reference, subsequent revisions do not apply. For a non-specific reference, the latest version applies. A non-specific reference to an ETS shall also be taken to re
27、fer to later versions published as an EN with the same number. il ETS 300 393-1: “Terrestrial Trunked Radio (TETRA); Packet Data Optimized (PDO); Part 1: General network design“. ETS 300 393-2: “Terrestrial Trunked Radio (TETRA); Packet Data Optimized (PDO); Part 2: Air Interface (AI)“. ETS 300 393-
28、7: “Terrestrial Trunked Radio (TETRA); Packet Data Optimized (PDO); Part 7: Security“. Pl 31 ETSI STD-ETSI TR LO1 156-ENGL L999 3400855 0397783 233 7 TR 101 156 V1.1.5 (199944) 3 Abbreviations For the purposes of the present document, the following abbreviations apply: APL AVL BS DAWS ELI GMM GPRS G
29、W IP LLC MAC MS PDO PHY SRC sw TRAC WATM Automatic Person Location Automatic Vehicle Location Base Station Digital Advanced Wireless Services European Information Infrastructure Global Multimedia Mobility General Packet Radio Services Gateway internet Protocol Logical Link Controller Medium Access C
30、ontroller Mobile Station Packet Data Optimized Physical Layer Strategic Review Committee Switch Technical Regulations Applications Committee Wireless Asynchronous Transfer Mode 4 Market Considerations Today, over 100 million Internet connected computers are in daily operation, a number exceedhg curr
31、ently the world population of private TV-dish receivers. These fixed terminals are supported by more than 16 million servers - up from 1 O00 back in 1988, according to Frost 13 years for television to reach that same number of viewers; 10 years for cable TV, and by 1998 this number of active Interne
32、t users will be reached, just 5 years after its comercial roll-out. According to Business Newspaper “Boersen“, 5 % of all international telephony will be Internet based by the turn of the millennium. This means a total accessible market of more than 5 million potential users of wireless high capacit
33、y links, including telephony, is waiting to be served by the time the DAWS sandard is completed. The DAWS approach is in full compliance with the new ETSI initiative of bringing professional products to market faster. DAWS will reduce the technical risk involved in bringing the EII to fruition and i
34、t will further reduce spending for both ETSI and the European Union (EU). ETSI STD.ETS1 TR 101 LSb-ENGL 3997 - 3400655 0399784 L5T W TR 101 156 V1.1.5 (1999-04) 8 4.1 Positioning of DAWS MOBILITY m/sec 4 II I I I I M O B I L I T Y - 0.02 0.2 2 20 155 Figure 1: The segmentation of different platforms
35、 As figure 1 indicates, the iarge segment from UMTS into WATM (X-axis) and from the top of the HPERLANs and (Y-axis) into outdoor coverage with terminai mobility and roaming has been identified by the ETSI DAWS team as hitherto not covered. At present, the common view regarding implementation of UMT
36、S Packet Services indicates that GSM-GPRS standardization should lead the way. Regrettably, little attention has yet been paid to dedicated MTS Packet Radio Services. ETSI STD*ETSI TR LO1 15b-ENGL 1999 I 3400855 0399785 09b E 9 TR 101 156 V1.1.5 (1999-04) 5 The Scenarios As shown in figure 2, the DA
37、WS protocols enable wireless Internet access in a variety of ways. DAWS networks can be directly connected to the global internet by network operators to provide high-speed wide-area Internet access to customers. System administrators can install DAWS networks throughout a corporate campus to provid
38、e wireless intranet access to employees. A DAWS network can be installed within a residence to permit high-speed wireless Internet access at home. Police and military personnel can use DAWS terminals to access ad-hoc IP networks. The DAWS protocols permit full, seamless terminal rnobiiity throughout
39、 all areas serviced by a DAWS network. URNET j. 1 PIDE-AREA :MOBILE TERMINAL I RESIDENTIAL 2 hCCECC POINT$ i . .X - .-. : Figure 2: DAWS Scenarios ETSI 10 TR 101 156 V1.1.5 (199944) 6 DAWS System Architecture There are four distinct types of functionality within a DAWS network: 1) Gateway (GW); 2) S
40、witch (SW); 3) Base Station (BS); 4) Mobile Station (MS). A DAWS node is a single piece of equipment with well-defined input and output interfaces. A DAWS node may integrate several of the four basic functions. The following node configurations are possible: 1) GW; 2) GW+SW; 3) GW+BS; 4) GW + SW + B
41、S; 5) sw; 6) SW+BS; 7) BS; 8) BS+MS; 9) MS. Node configurations 1-7 and 9 support fixed wireless access networks; node configuration 8 supports mobile wireless access networks. The IEPT Mobile Ad-hoc Network (MANET) working group is defining the protocols required to support mobile wireless access n
42、etworks. The current DAWS standards do not specify procedures and protocols for the BS + MS node configuration. This configuration will be supported in a future version of the DAWS standard. Figure 3 provides an example of a DAWS wireless access network. A data packet destined for a DAWS Mobile Stat
43、ion within the DAWS network is received by the DAWS Gateway and is sent to the Switch (SW). The Switch forwards the packet to Base Station #1, Base Station #2, or the downstream Switch (SW + BS). If the packet is forwarded to Base Station #1, it is then transferred over the DAWS wireless interface t
44、o Mobile Station #1 or #2. If the packet is forwarded to the downstream Switch, it is then either sent over the DAWS wireless interface to Mobile Station #5 or forwarded to Base Station #3. If the packet is forwarded to Base Station #3, it is then transferred over the DAWS wireless interface to Mobi
45、le Station #3 or #4. A data packet originated by a Mobile Station within the DAWS network is forwarded to the Gateway by intermediate switches and then sent into the Internet. Mobile Stations can roam freely between Base Stations within the DAWS network without requiring mobility operations at the n
46、etwork layer. 11 TR 101 156 V1.1.5 (199944) / ,r/ SW + BS y 0 MS#4 y 2 MSM Figure 3: An Example DAWS Access Network 6.1 Minimum Complexity Architecture Figure 4 shows the DAWS network architecture with minimum complexity. A DAWS Mobile Station communicates directly with the Gateway via a Base Statio
47、n integrated into the Gateway. INTERNET/ * GATEWAY+ - MOBILE INTRANET BASE STATION STATION Figure 4: DAWS Minimum Complexity Network Architecture Figure 5 shows the protocol stacks Corresponding to the minimum complexity architecture. The DAWS specifications describe how data packets are transferred
48、 between the GW + BS and MS nodes. GATEWAY + BASE STATION MOBILE STATION (DAWS) (DAWS) (DAWS) (DAWS) (DAWS) (DAWS) Figure 5: DAWS Minimum Complexity Network Protocols STD=ETSI TR 10L L5b-ENGL L 3400855 0399788 T5 m 12 TR 101 156 V1.1.5 (199944) 6.2 Maximum Complexity Architecture Figure 6 shows the
49、DAWS network architecture with maximm complexity from the perspective of a DAWS Mobile Station. A DAWS Mobile Station communicates with a Base Station over the DAWS wireless interface. The Base Station communicates with the Gateway through a series of Switches. DAWS network topologies are limited to those which permit data packets originating at a Mobile Station to be forwarded to the Gateway without requiring prior state creation at intermediate Switches. In general, prior state creation wiil be required for correct routi
