1、 Recommendation ITU-R M.1073-3(03/2012)Digital cellular land mobile telecommunication systemsM SeriesMobile, radiodetermination, amateurand related satellite servicesii Rec. ITU-R M.1073-3 Foreword The role of the Radiocommunication Sector is to ensure the rational, equitable, efficient and economic
2、al use of the radio-frequency spectrum by all radiocommunication services, including satellite services, and carry out studies without limit of frequency range on the basis of which Recommendations are adopted. The regulatory and policy functions of the Radiocommunication Sector are performed by Wor
3、ld and Regional Radiocommunication Conferences and Radiocommunication Assemblies supported by Study Groups. Policy on Intellectual Property Right (IPR) ITU-R policy on IPR is described in the Common Patent Policy for ITU-T/ITU-R/ISO/IEC referenced in Annex 1 of Resolution ITU-R 1. Forms to be used f
4、or the submission of patent statements and licensing declarations by patent holders are available from http:/www.itu.int/ITU-R/go/patents/en where the Guidelines for Implementation of the Common Patent Policy for ITU-T/ITU-R/ISO/IEC and the ITU-R patent information database can also be found. Series
5、 of ITU-R Recommendations (Also available online at http:/www.itu.int/publ/R-REC/en) Series Title BO Satellite delivery BR Recording for production, archival and play-out; film for television BS Broadcasting service (sound) BT Broadcasting service (television) F Fixed service M Mobile, radiodetermin
6、ation, amateur and related satellite services P Radiowave propagation RA Radio astronomy RS Remote sensing systems S Fixed-satellite service SA Space applications and meteorology SF Frequency sharing and coordination between fixed-satellite and fixed service systems SM Spectrum management SNG Satell
7、ite news gathering TF Time signals and frequency standards emissions V Vocabulary and related subjects Note: This ITU-R Recommendation was approved in English under the procedure detailed in Resolution ITU-R 1. Electronic Publication Geneva, 2012 ITU 2012 All rights reserved. No part of this publica
8、tion may be reproduced, by any means whatsoever, without written permission of ITU. Rec. ITU-R M.1073-3 1 RECOMMENDATION ITU-R M.1073-3 Digital cellular land mobile telecommunication systems (1994-1997-2005-2012) Scope This Recommendation recommends the technical and operational characteristics of d
9、igital cellular land mobile telecommunication systems for international and regional use. By providing associated references to the specifications for each technology, the Recommendation provides guidance for administrations evaluating various cellular systems for their intended applications. The IT
10、U Radiocommunication Assembly, considering a) that digital signals in various formats are being used to improve the communications efficiency of the land mobile service; b) that digital transmission systems which are not compatible with existing land mobile systems should also be considered, includi
11、ng the transmission of digitally encoded speech signals; c) that mobile telephone services, i.e. services for public correspondence via radio stations connected to the public switched telephone network (PSTN), are in operation in a number of countries and that their use is extending; d) that the var
12、ious technical systems already in use or proposed for such services, are not necessarily compatible; e) that system compatibility is necessary in the case of international operation; f) that for international operation it is desirable to agree on the parameters of the system; g) the need to improve
13、spectrum utilization efficiency and hence system capacity per MHz per unit area; h) the need for a flexible system structure able to match network investment to revenue growth, readily adapting to environmental factors and responding to new developments rather than restricting innovation; j) the inc
14、reasing importance of the various types of data and telematic services, noting that Recommendation ITU-R M.1457 covers the IMT-2000 radio interfaces, recommends that for digital cellular land mobile telecommunication systems (DCLMTS) the following technical and operational characteristics should be
15、used: 1 General objectives The general objectives of DCLMTSs are to provide: systems with high spectrum utilization efficiency, thereby accommodating more users within the limited spectrum resource than existing analogue cellular public land mobile telecommunication systems (PLMTS); 2 Rec. ITU-R M.1
16、073-3 users with a wide range of services and facilities, both voice and non-voice, that are compatible with, and access, those offered by the public fixed networks (PSTN, ISDN, PDN, etc.); services and facilities exclusive to mobile systems, including facilities for automatic roaming, locating and
17、updating mobile users; users with a variety of mobile stations consistent with their requirements, ranging from vehicle mounted to hand-held stations with voice and non-voice interfaces; services of high quality and integrity at an economic cost; mobile equipment and infrastructure at the reduced co
18、st, weight, size and power drain offered by the adoption of digital processing and very large scale integration (VLSI) technology. 2 Digital technology Digital technology is introduced into the PLMTS in five major areas: digital radio modulation/demodulation; digital speech coding; channel coding an
19、d digital signal processing; digital control and data channels; privacy and authentication. 3 Service types The basic telecommunication services offered by the DCLMTS, as fully described in the reference material, can be divided into two types: bearer services which give the user the capacity needed
20、 to transmit appropriate signals between certain access points; teleservices which provide the user with the full capacity, including terminal equipment functions, to communicate with other users. Supplementary services are also available in association with the basic services. All the DCLMTS suppor
21、t some services in each category, but the range offered varies between systems. 3.1 Bearer services Typical bearer services offered include: synchronous, asynchronous and packet data; unrestricted digital capability at specific bit rates. In general, connection of voice-band modems to the speech pat
22、h of mobile stations is not supported. Equivalent service to that offered by the use of voice-band modems on the PSTN or ISDN can be provided via the bearer services listed above. 3.2 Teleservices All the DCLMTS support telephony and facsimile teleservices. Some extend the teleservice offerings to i
23、nclude videotex, teletex, etc. Rec. ITU-R M.1073-3 3 3.3 Supplementary services The range of supplementary services supported by the DCLMTS varies depending on the system and also the particular implementation. 4 Architecture common to all digital systems 4.1 Base station layout The geographical dis
24、tribution of base stations is organized around two types of structure: regular cell structures using omnidirectional antennas; sector cell structures using directional antennas. 4.2 Channel design Two basic categories of channels are defined for DCLMTS: traffic channels (TCH) which are used for voic
25、e and data transmission (i.e. bearer services and teleservices); control channels (CCH) which are used for signalling and control purposes, including handover. The CCH can be further divided into three broad types: common control channels (CCCH) which are used for paging, random access, etc.; broadc
26、ast control channels (BCCH) which are used for broadcast messages, and/or synchronization and frequency correction; associated control channels (ACCH) which can be divided into slow ACCH (SACCH) and fast ACCH (FACCH) and provide control and signalling functions for individual users. Some systems may
27、 also define other types of control channel for particular applications (e.g. stand-alone dedicated control channels). 4.3 Network architecture and assignment of functions Figure 1 shows the basic system architecture for a DCLMTS, including the major functional components. The communication protocol
28、s are specified according to the 7-layer OSI model, while the interfaces between mobile switching centres (MSCs) and the interfaces to the ISDN, PSTN and PDN are all specified according to ITU-T Recommendations. The numbering plan also follows ITU-T Recommendations. 4 Rec. ITU-R M.1073-3 FIGURE 1 Ne
29、twork architecture M.1073-01EIRMSCAUCHLRBSVLROMCMSCFixednetworksPDNSPSTNISDNInterfacewith the fixed networksAUC: BS:EIR: HLR: MS: MSC: OMC: VLR: RadiointerfacePhysical connectionLogical relationshipsauthentication centrebase stationequipment identity registerhome location registermobile stationmobil
30、e services switching centreoperation and maintenance centrevisitor location registerMSMS5 Incorporation of externally developed specification material The detailed standardization of the technologies in this Recommendation has been undertaken within standards development organizations. This Recommen
31、dation therefore makes use of references to externally developed standards. 6 Digital cellular systems and their enhancements High capacity digital wireless systems have been developed in all three Regions. Each of the systems delineated below is incorporated by using a simple reference pointer. Ref
32、erences to these systems are shown in the following Tables. Rec. ITU-R M.1073-3 5 6.1 GSM These reference links describe the characteristics of GSM. Document No. Version Status Issued date Location ETSI TS 102 338 1.0.0 Published June 2004 http:/pda.etsi.org/exchangefolder/ts_102338v010000p.pdf 6.2
33、TIA/EIA-136 TDMA These reference links describe the characteristics of TIA/EIA-136 TDMA. Document No. Version Status Issued date Location TIA TIA-136-000 E Published ANS 2004-01-14 http:/ftp.tiaonline.org/uwc136/136-000-E.pdf 6.3 TIA/EIA-95 CDMA These reference links describe the characteristics of
34、TIA/EIA-95 CDMA. Document No. Version Status Issued date Location TIA TIA-2000.000 1.0 Published 2004-06 http:/ftp.tiaonline.org/TR-45/TR-45.5/Public/ITUM1073/TIA-2000.00_CDMA_List%20of%20Stds.doc 6.4 PDC These reference links describe the characteristics of PDC. Document No. Version Status Issued date Location ARIB RCR STD-27 L Published Nov. 2005 http:/www.arib.or.jp/english/html/overview/doc/5-STD-27_L-1p3-E.pdf http:/www.arib.or.jp/english/html/overview/doc/5-STD-27_L-2p3-E.pdf http:/www.arib.or.jp/english/html/overview/doc/5-STD-27_L-3p3-E.pdf
