1、ETSI TR 102 193 1.1.1 (2003-04) Technical Repor Fixed Radio Systems; Point-to-point and Point-to-multipoint equipments; Aspects regarding P-P and P-MP digital radio equipment with ATM and IP interfaces carrying native ATM or IP over ATM payloads 2 ETSI TR 102 193 VI .I .I (2003-04) Reference DTR/TM-
2、04112 Keywords ATM, interface, IP multipoint, point-to-point, radio ETSI 650 Route des Lucioles F-O6921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 O0 Fax: +33 4 93 65 47 16 Siret No 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-prfecture de Grasse (06) No 78
3、03/88 Important notice Individual copies of the present document can be downloaded from: http:lwmv.etsi .arq The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference ve
4、rsion is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of s
5、tatus. Information on the current status of this and other ETSI documents is available at ha p:/pa rta I. etsi I a rgltbistat uslstatus .as p If you find errors in the present document, send your comment to: Cori vriaht Notifica tion No part may be reproduced except as authorized by written permissi
6、on. The copyright and the foregoing restriction extend to reproduction in all media. O European Telecommunications Standards Institute 2003. All rights reserved. DECTTM, PLUGTESTSTMand UMTSTMare Trade Marks of ETSI registered for the benefit of its Members. TIPHONTM and the TIPHON logo are Trade Mar
7、ks currently being registered by ETSI for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. ETSI 3 ETSI TR 102 193 VI .I .I (2003-04) Contents Intellectual Property Rights . . . . . . . , . . . . . . . . . .
8、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Foreword Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 1 2 3 4 4.1 4.2 5 6 6.1 7 7.1 7.1.1 7.1.2 8 8.1 8.2 8.2.1 8.
10、3 Scope . References . . . .5 Abbreviations . . .6 ATM equipment architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11、. . . .7 7 . 10 Relationship between ATM and TM4 functional specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 Bit rate definition . 14 . 15 Standard specification . . . . . . . . . . . . . . . . . . . . . . . . .
12、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 18 19 19 Conformance test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 . . 23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14、. . . . . . . . . . . . . . . . . . . .24 . . 26 . . . . 26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Relationship between bit rates . . . . . . . . . . . . . . . . . . . . . . . . . .
15、 . . . . . . . . . . . . . . BER parameter . Example of SDH equ . Example of ATM equipment . Packet level performance tests . Full band throughput . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Interference condition . . . . . . . . . . . . . . . . . . . . . . . Full band latency Hi
16、story . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17、. . . . . . .27 ETSI 4 ETSI TR 102 193 VI .I .I (2003-04) 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, a
18、nd can be found in ETSI SR 000 314: “Intellectual Property Rights (7PRs); Essential, orpotentially Essential, IPRs notlJied to ETSI in respect ofETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (5). All published ETSI deliverables sha
19、ll include information which directs the reader to the above source of information. Foreword This Technical Report (TR) has been produced by ETSI Technical Committee Transmission and Multiplexing (TM). I n t rod uct ion ETSI ENS for Fixed Radio Systems, commonly produced by TC TM through its WG TM4,
20、 standardize radio-frequency parameters for coexistence of different radio systems (e.g. Point-to-point links or Multipoint cells) in the same geographical area. Frequency planning is the common process for evaluating coexistence; it is made on a link-by-link base (P-P) or on cell-by-cell base (P-MP
21、). It might be done either by an Administration in the licensing process, or by the Network Operator given a number of radio frequency channels to be used (and managing the Co-ordination with neighbour Operators on adjacent channels or adjacent areas). The parameters necessary for this process, and
22、reported in relevant ENS, are mainly spectrum masks and receiver signal levels (RSL) versus Bit Error Rate (BER) under different interference conditions (e.g. Co-channel and adjacent channel with like interfering signals). Residual Bit Error Ratio (RBER) is also defined for guarantying quality perfo
23、rmance to the radio connection. Traditionally, the BER has been defined on a bit-to-bit count bases, this is a conventional method where all transmission capacity performance might be reconducted. However, when cells or packet data transmission are considered (e.g. carrying native ATM or IP over ATM
24、 traffic) and on the radio equipment electricaYoptica1 interfaces are provided only with those kind of transmission, it might become difficult to actually measure BER (bit-to-bit) unless specific proprietaiy interface is provided for this purpose only. Therefore, there is the necessity to produce a
25、common understanding on how to directly measure cell or packet data performance (e.g. CER for ATM cells) and extrapolate the BER requirement in order to fulfil the EN generic requirement. The present document offers some basic considerations on the above subject. ETSI 5 ETSI TR 102 193 VI .I .I (200
26、3-04) 1 Scope The present document gives guidance on definition of radio specific aspects for P-P and P-MP systems when ATM or IP (still internally mapped on ATM cells) interfaces only are provided. The present document analyses the relationship between the wireless specific requirements commonly us
27、ed within ETSI TM4 standard with the ATM and IP requirements, experienced at these base-band interface. Furthermore, a generic reference model for radio equipment is introduced, with relevant reference points for determining radio requirements and measurement points for evaluating radio parameters (
28、e.g. BER curve, interference sensitivity, etc.). The results and description contained in the present document may be used as guideline for requirements definition of wireless ATM and IP over ATM system and for possible revision of conformance test ENS in order to insert test methods for radio equip
29、ment implementing ATM and IP over ATM functionality. The content is applicable to P-P and P-MP radio systems (see note). NOTE: In the present document the term P-MP (Point-to-Multipoint) is used as representative of FWA systems, however the considerations here reported are equipment oriented and gen
30、erally independent from the network architecture; therefore they are considered applicable to other radio network structure (e.g. to equipment for Mesh networks). 2 Re fe re nces For the purposes of this Technical Report (TR) the following references apply: il Void 21 31 41 51 ITU-T Recommendation 1
31、.732: “Functional characteristics of ATM equipment“. ITU-T Recommendation 1.326: “Functional architecture of transport networks based on ATM“. ITU-T Recommendation G. 805: “Generic functional architecture of transport networks“. ITU-T Recommendation G.783 : “Characteristics of synchronous digital hi
32、erarchy (SDH) equipment functional blocks“. ITU-T Recommendation 1.32 1 : “B-ISDN protocol reference model and its application“. ITU-T Recommendation 1.432.1 : “B-ISDN user-network interface - Physical Layer specification; General Characteristics“. 61 71 SI ITU-T Recommendation G.803 : “Architecture
33、 of transport networks based on the synchronous digital hierarchy (SDH)“. ITU-T Recommendation G.804: “ATM cell mapping into Plesiochronous Digital Hierarchy (PDH)“. ITU-T Recommendation G.832: “Transport of SDH elements on PDH networks - Frame and 91 1101 multiplexing structures“. ITU-T Recommendat
34、ion G.957: “Optical interfaces for equipments and systems relating to synchronous digital hierarchy“. ETSI EG 202 306: “Transmission and Multiplexing (TM); Access networks for residential customers“. ITU-T Recommendation G.703 : “Physical/electrical characteristics of hierarchical digital interfaces
35、“. 111 121 i31 the i41 ITU-T Recommendation G.704: “Synchronous frame structures used at 1 544,6 3 12,2 048, 8 448 and 44 736 kbit/s hierarchical levels“. i51 ITU-T Recommendation G.707: “Network node interface for the synchronous digital hierarchy (SDH)“. ETSI 6 ETSI TR 102 193 VI .I .I (2003-04) i
36、161 i171 i181 i191 i201 i211 i221 i231 i241 i251 i271 i291 i301 i3 11 i321 i261 i281 i331 i341 i351 i3 61 i371 i3 81 ETSI ETS 300 742: “Transmission and Multiplexing (TM); Physical layer User Network Interface (UNI) for 2 048 kbit/s Asynchronous Transfer Mode (ATM) signals“. ETSI I-ETS 300 8 1 1 : “
37、Broadband Integrated Services Digital Network (B-ISDN); Transmission Convergence (TC) and Physical Media Dependent (PMD) sublayers for the SB reference point at a bit-rate of 25,6 Mbit/s over twisted pair cable“. ETSI EN 300 299: “Broadband Integrated Services Digital Network (B-ISDN); Cell based us
38、er network access for 155 520 kbit/s and 622 O80 kbit/s; Physical layer interfaces for B-ISDN applications“. ETSI ETS 300 300: “Broadband Integrated Services Digital Network (B-ISDN); Synchronous Digital Hierarchy (SDH) based user network access; Physical layer User Network Interfaces (UNI) for 155
39、520 kbit/s and 622 O80 kbit/s Asynchronous Transfer Mode (ATM) B-ISDN applications“. ETSI EN 300 417 (all parts): “Transmission and Multiplexing (TM); Generic requirements of transport functionality of equipment“. Void Void Void Void Void Void Void Void Void Void Void Void Void IETF RFC 2684: “Multi
40、protocol Encapsulation over ATM Adaptation Layer 5“ (D. Grossman; J. Heinanen - September 1999). IETF RFC 1242: “Benchmarking terminology for network interconnection devices“ (S. Bradner - Jul-01-1991). IETF RFC 2285: “Benchmarking Terminology for LAN Switching Devices“ (R. Mandeville - February 199
41、8). IETF RFC 2544: “Benchmarking Methodology for Network Interconnect Devices“ (S. Bradner, J. McQuaid - March 1999). IETF RFC 2255: “The LDAP URL Format“ (T. Howes, M. Smith - December 1997). 3 Abbreviations For the purposes of the present document, the following abbreviations apply: ARP Address Re
42、solution Protocol ATM Asynchronous Transfer Mode BER Bit Error rate ETSI 7 ETSI TR 102 193 VI .I .I (2003-04) B-ISDN CBR CCS CDV CER CLR CRS cs DLC FCS FWS GFR IETF RFC IP LAN LLC LME MAC MSOH NE “I PDH P-MP P-P RSL RBER RSOH SDH SNI TE TM TP TS UBR UNI vc VCI VP VPI WCS Broadband ISDN Constant Bit
43、Rate Central Controller Station Cell Delay Variation Cell Error Ratio Cell Loss Ratio Central Radio Station Central Station Data Link Control Frame ChecSum Fixed Wireless Access Guarantee Frame Rate IETF Request For Comment Internet Protocol Local Area Network Logical Link Control Layer Management E
44、ntity Media Access Control Multiplex Section OverHead Network Element Network Node Interface Plesiochronous Digital Hierarchy Point-to-MultiPoint Point-to-Point Receiver Signal Levels Residual Bit Error Rate Regenerator Section OverHead Synchronous Digital Hierarchy Service Node Interface Terminal E
45、quipment Transmission Media Transmission Path termination Terminal Station Unspecified Bit Rate User Network Interface Virtual Container Virtual Connection Identifier Virtual Path Virtual Path Identifier Wireless Convergence Sublayer 4 ATM equipment architecture 4.1 Po i n t- to- po i n t system In
46、these clause it is analysed the P-P case, considering some example of P-P radio equipment with an ATM interfaces. First of all it should be reminded that 3 different typologies of interfaces are possible: the “I, which is the interface between two equipment of the Transport Network or between an equ
47、ipment of the Transport Network and one of the Access Network; the UNI, which is the interface between the equipment of Access Network and the equipment of User Network; the SNI, which is the interface between the equipment of Access Network and the equipment which provides the service. ETSI 8 ETSI
48、TR 102 193 VI .I .I (2003-04) The functional characteristics of ATM equipment are described in ITU-T Recommendation 1.732 2 using the B-ISDN Protocol Reference Model defined into ITU-T Recommendation 1.326 3 and the equipment modelling derived from ITU-T Recommendation G.805 4. This methodology is e
49、quivalent to the model used for describing the functions of SDH and PDH equipment defiied in ITU-T Recommendation G.783 5. The general ATM Network Element functional architecture according to ITU-T Recommendation 1.321 6 model is shown in figure 1. The main functional layers can be grouped as follows : TM - Transmission Media, i.e. the physical layer; TP - Transmission Path Termination which terminate a transmission path by extraction
