1、ANS1/TIA/ElA-712-1997 Approved: duly 11, 1997 I TIAIEIA STANDARD I Recommended Minimum Standards for 800 MHz Cellular Base Stations JULY 1997 TELECOMMUNICATIONS INDUSTRY ASSOCIATION I NOTICE TLA/EU Eqgmxhg Standards and Publications are designed to serve the public interest through eluninating misun
2、derstandings between manufacturers and purchasers, facilitating interchangeaWity and improvement of products, and assisting the purchaser in selecting and obtaining with minimum delay the proper product for his particular need. Existence of such Standards axad Publications shall not in any respect p
3、reclude any member or nonmember of TINEIA fiawn manufacturing or selling products not conforming to such Standards and Publications, slof shall the existence of such Standards and Publications preclude their voluntary use by those der than TIA/EA memben, whether the standard is to be used either dom
4、estically or internatidy . Standards arad Publications are adopted by TWEIA in accordance with the American National Standards Institute (ANSI) patent policy. By such action, WEIA does not assume any liability to any patent owner, nor does it assume any obligation whatever to parties adopting the St
5、andard or Publication. * This Standard does not purport to address all safety problems associated with its use or aU applicable regulatory requirements. It is the responsibility of the user of this Standard to establish appropriate safes and health practices and to determine the applicability of reg
6、ulatory limitations before its use. (From Standards Proposal No. 3597, formulated under the cognizance of the TR-45.1 Subcommittee on Analog Cellular Equipment.) Published by pTELECOMMUNICATIONS INDUSTRY ASSOCIAON 1997 Standards and Technology Department 2500 Wilson Boulevard Arlington, VA 22201 PRI
7、CE: Please refer to current Catalog of EIA, JEDEC, and TIA STANDARDS and ENGINEERING PUBLICATIONS or call Global Engineering Documents, USA and Canada (1-800-854-7179) International (303-397-7956) , AU rights reserved Printed in U.S.A. MIA-712 CONTENTS page 1 . INTRODUCTION . 1 1.2 General Descripti
8、on of cellular Mobile Telephone System . 1 1.3 Definition of Base-Saion Equipmen . .- 2 1.3.1 ChaxmelNumberingaadFrequencieS 3 1.3.2 Reserved . 3 1.3.3 Duty C$cles . 3 1.3.4 Full Dupiex Operation -4 1.3.5 Time Intervals 4 1.3.6 Suppiemenaq Temis and Definitions . 4 RECEIVER MINIMUM STANDARDS 5 2.1 F
9、requeocy Requirements 5 2.1.1 FrequencyCoverage . 5 2.2 Demodulation Requiremens 5 2.2.1 ?frpeofModuiation 5 2.2.2 Demodulated Voice Signais 5 2.2.2.1 Voice Audio Fquency Response 5 2.2.2.2 Audio Muthg 5 2.2.2.3 Expaiuaor 6 2.2.2.4 Hum and No iSe 7 2.2.2.5 Audio Harmonic Distortion 7 2.2.2.6 Receive
10、-Audio Sensitivity 7 2.2.3 DemodulatedDataandConoI 7 2.2.3.1 MancheSterDecoding 8 2.2.3.2 SupennSOry Audio Tone (SAT) De 8 2.2.3.3 Signaling Tone (ST) Detection . 9 2.3 perfomiarice . 9 1.1 soope . 1 2 . 2.3.1 RF Sensitivity 9 2.3.2 Adjacent and Alernate Chamiel Desemtm tion 10 2.3.3 InteduMion Spur
11、ious Response Attewation . 10 2.3.4 Protection Against Spurious-Response Interfemux 11 2.3.5 Bit-Emr Rate . 12 2.4 Conducted Spurious Emissio D. . 12 2.5 Radiated Spurious Emission 13 2.6 Received Signal Strength Indicator (RSSI) 14 2.7 Cross Talk from Transmitter 14 TRANSMlTER MINIMUM STANDARDS 15
12、3.1 Frequency Requirements 15 3.1.1 Frequexq Coverage . 15 3.1.2 Frequency Stability . 15 3.1.3 -er Switching Time 15 RF Power Output Requkments . 16 ut . 16 3 . 3.2 3.2.1 RF Power i Tm-7 12 3.3 ModulationRequirements 16 3.3.1 Modulation Type arad Modulation Stability . 16 3.3.2 Voice Modulation . 1
13、7 3.3.2.1 Compmsor . 17 3.3.2.2 Transmit-Audio Respne .-. 17 3.3.2.3 Moduhtion Deviation Limiting 18 3.3.2.4 Reserved . 18 3.3.2.5 Transmit-Mo Sensitivity 18 3.3.3 WidebandData . 19 3.3.4 Supervisory Audio Tone (SAT) . 19 33.5 Signaling Tone (ST) . 20 3.3.6 FM Hum and Noise . 20 3.3.7 Residual Ampli
14、tude ModuMion (AM) 20 3.3.8 Modulation Distortion and Noise . 20 3.4 Limitattons on Emissions 21 3.4.1 SpectnunNoiseSuppression-Bd and. . 21 3.4.2 Harmonic and SpunouS EmissiOoS (Coraducted) - Discrete 21 3.4.3 Harmonic and Spurious EmissionS (Radkkd) - Discrete . 22 3.4.4 Txansmiter Intemodulation
15、SpUnous Emissions 22 3.5 Cross Talk from Receiver 22 : C . 4 . ENVIRONMENTAL REQUIREMENTS 24 4.1 Temperature and Power Supply Voltage . 24 4.2 High Humidity 25 STWARD RADIATED SIGNAL MEASUREMENT PRW DURE . 26 5.1 Standard Radiation Test Site 26 5.2 Search Antemia 26 5.3 Field-Srength Measurement 26
16、5.4 Frequency Range of Measurements 27 5.5 30-Meter Test 27 5.6 3-meter Test Range 27 5.7 RadiaIedSignalMeasurementpIocedures . 28 STANDARD TEST CONDITIONS . 29 6.1 StandardEquipment . 29 6.1.1 Basic Equipment 29 6.1.2 AssociatedEquipme nt. . 29 6.2 Standard Envimnmenai Test Coraditions . 29 6.3 San
17、dard Conditions for the Primary Power Supply 29 6.3.1 General . 29 6.3.2 Standard DC Test Voltage from Accumulator Batteries 29 6.3.3 Standard ACVoltageandFrequency . 30 5 . 6 . ii 7 . 8 . 9 . 10 . 11 . TLAIEIA-7 12 6.4 SandardRF Signal Source 30 6.4.1 StandaxlIntegralRFSignalSource 30 6.4.2 Siandar
18、d External RF Signal Source . 30 6.5 StandarRFoUtputLo ad. . 30 6.5.1 StandardInteg;ralTransmierOutputLoad ? 30 6.5.2 StartdardExtemalTtteroutpUtLoad . 30 6.6 StandardMeasurementF.quipm 30 6.6.1 GeaeralEquipmen 30 6.6.2 StamhdTestReceiver . 31 6.6.3 Spectnun Analyzer or Frequency Selecive Vokneter .
19、 31 6.7 StandardDuty Cycle . 31 6.7.1 Continuous 32 RESERVED . 32 RESERVED . 32 RESERVE . 32 RESERVED . 32 CHANGE HISTORY . 33 1 I . 1 Chronology of Revisions for Is.2O.A . 33 LIST OF TABLES Table 1 . Channel Numbers and Frequencies 3 Table 2 . Bit-Emr-Rate Performance . 12 Table 3 . Maximum Ailowab
20、le Radiated Spurious Emission 13 Table 4 . Transmit-Audio Response . 18 iii . , RECOMMENDED MINIMUM STANDARDS FOR “Z CELLULAR BASE STATIONS 1. INTRODUCTION 1.1 Scope These staodards detail definitions, methods of measumnea and minimum pelformarice characteristics of 800-MHz Ceiiuiar Base Saions. The
21、se standards share te purpose of the cellular System Mobile Station - Land Station compatibility Specification EWTIA-553 (and sdxequent revisions thereof) of asSuring that cellularsysteinconjunctionwithtbwbase-stationequipmentprovideservicetoany subscriberunit that meets the compatibili requirementS
22、 of EIAfIA-553. Compaibility, as used in connecion with these standards and EIAITIA-553, is undersood to mean: ceiiuiarsystems with their associatebase staions are capable of piacingandreceivingcaiis withany cellular submir unit. Conversely, any subscriber unit is capable of piacing and receiving ca
23、lls in tbe cellular systemvia tbe base-station epment. To assure compatibility, it is essential that both radio-system parameteIs and call-procesSing par;uneters be specied. The speech-filtering, moduiatioq and Wemission parameters commonly encountered in two- way raclio systems have been updated an
24、d expanded to reflect tbe unique radio ph upon which cellular systems are based. The sequence of cal-processing steps that the mobile and base stations execute to establish calls has been specified in EWIA-553 along with the digitai control messages and analog signalsthatareexchangedbetweenthetwosta
25、lions. Although the basic puse of cellular telecommunications has been voice commurnicaton, evoiving usages (e-g, data) may aiiow the omission of some of the fea- specified hen5npmvided tha tbe system compatibility is not compromised. These sandards concentrate specicaily on the Base Station Radio T
26、dting and Receiving equipmew they cover the cellular switch and the cellcontrol equipment only to the extent that compatiiility with I EIA/IIA-553 is assured. 1.2 General Description of Cellular Mobile Telephone System Th: system is designed to supply mobile telephone seMce usiug a “cellnlar“ radio
27、covexage plan This pian divides a metropolitan area into a number of coverage areas or “celis“ with each cell being assigned a portion of the avaiiable radio channels. The channels used in one cell are again usable in spalially sepai.atd cells in the same mobile service anea The submir unit communic
28、ates with a isribute array of il-site base saions. The cell-site base Stations are cofitTDued by the cellular-system network control and switching equipmentthat provides connedion to the world-wide telecommunications nework. A call between the land newodc and a subscnir unit is muted via the cellula
29、r control system to the cell site that best serves the location of the subscriber unit. A call in progress can proceed indefnitely as the subscriber unit wes from cell to cell throughou the mobile service area since it is automaticaUy reassigned to an available channel within a new cell. Some of the
30、 channels within each cell are dedicated to tbe conir01 of the subscnber unit. This includes locating a parkuh subscriber unit, processing a subscriberoriginated caU, and performing other system- control functions. The remaimng channels are used for voice communication 1 STD-EIA TIA-712-ENGL 1777 m
31、323Lib00 0584785 074 TIAEU-712 . 1.3 Definition of Basestation Equipment Celhilarbase-statonequipmemcancoistofoconfiguratioosaiadvaniousgainnoss combinations for multiple radio channel implementation It is essentiai that ail base stations shall provide the following functions to interface with the s
32、ubscriirunits and the ceii system-controiing equipment. (a) Accessandpagingconro, (b) Location, - (cl (a) Sendingmobileorders, (e) g) VoichannelhaudoQ R-, (h) Anaogsignang, (i) Digitalsignang, (i) Data communication to the cell system controiling equipment, and ) Voice unks to the cel system control
33、iing equipment. Reception an conrmation of mobile orders, Base-sation equipment consists of the foliowing generazed hardware. An antenria system that may be omni, omni and directionai, directional, or any cominalion theof, RF filtering for the attenuation of out-of-band emissions, both in the transm
34、it and receive Optional RF pwamplification for he receiving equipment, dependhg on system design noisefgulerequirements, Control channel radio transceiver), inchiduig RF power amplifien, wih data communication capabiiititx for access and paging functions, Locating receiver) or transceiver(s), option
35、ai, depending on syam requirements for handoffs, Voice channel transceivers and RF power ampiifes for voice and subscriber data communication, RF power combiners and power divides or swiching for group voice/control do chamiel intercoMections to the antema system, Voice channel processing functions
36、that consist of the foliowing: (1) 2: 1 syliabic compressor for transmit audio, (3) Transmit-audio deviation iimier, (4) 1:2 exparmdor for receive audio, and (5) Receive-audio de-emphasis Circuitry. Optionai RF, baseband, or digitai test capabilities, deperdhg on system requkments for on-ih, off-lin
37、e, or remote maintename. communication, booting, downioding cell software, initiazation, system integriy, call processing, message reportin this is the reference OdB input level The relative input level in di3 is 2O10gl0 (kHz peak fquency deviation / 2.9). Measure the corresponding audio output volt
38、age level. This is he refmnce (MB output level. Increase the RF sigoai deviation to fl2-lrHz peak (+12.3dB relative input level). Measure the output voltage level for each input levei as the input level is decreased in steps not larger than 1 dJ3 down to 2258-H peak frequency deviation (-21- relativ
39、e input level). . To measure the attack time of the expandor, adjust the RF signai to k2.9-lrHz peak frequency deviation. Inmase the audio level to the RF signai generatorby a6dB step (switchingtime sballbe lessthanO.1 millisecond) while monitoring the receiver audo-output envelope with an osciliomp
40、e. “he time required for the audio to reach 0.57 times its frnal steady-state vaiue is the attack time. To measure the riecovery time of the expador, denease the audio level to the RF signai generator by a 6-dB step to the onginai level (switching time shall be less tan 0.1 millisecond) while monito
41、ring th audio-output envelope. The time Iequired for the audio to fall to 1.5 times its final steady-sate vaiue is the ecovery time. 2.2.2.3.3 Minimum Standard The input/output values when ploW (x = dB reiative input, y = dB relative output voltage) sha not fall outside tolerance bands as follows ab
42、out an ideai maigt line that passes through the (O-, dB) reference point and has a positive slope of 2dB output for 1dB ut For ut levels above O dB, the output voltage tolerance baud is I1 dB. For input levels below O dB, the output voltage tolerance band is I2 dB. The expandor shall have an attack
43、time of 3M.6 milliseconds and a recovery time of 13.512.7 milliseconds. 6 MIA-7 1 2 2.2.2.4 Hum aud Noise 2.2.2.4.1 Definition Hum and noise denotes the ratio of siduai receiver audio output to nomml audio output 2.2.2.4.2 Method of Measurement Disable the expandor, terminate the audio output oftbe
44、receiver in the load specified by the manuktmr, and make measurements using a C-message weighted iter. The weighiing network is used to minimi;re the power line frequency and low frequency mimphonk modulation present in manysignai generators. Apply a -5OdBm RF signal modulated wih a 10oo-H audio tow
45、 at B-lcHz peak fequency deviation (without SAT) to the receiver antenua input tenmnals. Tbe transmitter Wbe onat full unattenuated power and modulated with an 1100-Hz tone at Hz up to and inclucOing 45 ISHZ, at least 26 dB. (2) For modulation by voice (i.e., the 2500-Hz signai specied in 3.4.13) an
46、d SAT in a 300 Hi band cenenxi on any frequency removed fromhe Samerfrequensl by gpaterthan45 kHz, at least 63 + 10 loglo (mean output power in watts) dB, or 80 dB whichever is the lesser atenuation (3) For modulation by wideband ata (without SAT): in a 3WHz band centered on any frequency: (a) More
47、than 45 kHz up to and including 60 irHz, at least 45 dE3. (b) More than60 &up to arad including 90 IrHZ, at least65 dB. (c) More than 90 &up to the frst multiple of the canierfrequency at leas 63 + 10 flogio (mean power in watts) dB or 80 dB whichever is the lesser attenuation 3.4.2 Harmonic and Spu
48、rious Emissions (Conducted) - Discrete 3.4.21 Dehition Conducted harmonic and spurious emissions are emissions at the antem terminals on a frequency or fresuencies that are outside the authorized bandwidth of the tmsm&er. Reduction in the level of these spurious emissions will not affect the quality
49、 of the information being transmitted. 3.4.2.2 Method of Measurement The transmitter shall be alternately nnodulated with combined voice and Supervisory Audio Tone (SAT) ad with wideband data For combined voice and SupeMsory Audio Tone (SAT) measunmen&, the transmitter shall bave its compressor disabled, shall be modulated with a 2500-Hz sine wave 13.5 dE3 gceaterthanthatreqiiiredtoprod11ce8-kHzpeakfrepuency deviationat lOOoHz(16dB greaterthantha required to pro
