GB/T 14617.1-2012 English PDFUS$689.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 14617.1-2012: Propagation characteristics in land mobile service and fixed service -- Part 1: Propagation characteristics in land mobile service Status: Valid GB/T 14617.1: Historical versions
Basic dataStandard ID: GB/T 14617.1-2012 (GB/T14617.1-2012)Description (Translated English): Propagation characteristics in land mobile service and fixed service -- Part 1: Propagation characteristics in land mobile service Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: M30 Classification of International Standard: 33.060.60 Word Count Estimation: 30,347 Older Standard (superseded by this standard): GB/T 14617.1-1993 Quoted Standard: GB/T 14431 Regulation (derived from): National Standards Bulletin No. 41 of 2012 Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China Summary: This standard specifies the 150 MHz ~ 3 000 MHz band land mobile services propagation prediction methods, including field strength prediction model, interference prediction model, coverage prediction methods, and coordination distance calculation methods. GB/T 14617.1-2012: Propagation characteristics in land mobile service and fixed service -- Part 1: Propagation characteristics in land mobile service---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. Propagation characteristics in land mobile service and fixed service Part 1. Propagation characteristics in land mobile service ICS 33.060.60 M30 National Standards of People's Republic of China Replacing GB/T 14617.1-1993 Land mobile service and fixed service propagation characteristics Part 1. Propagation characteristics in land mobile service Part 1. Propagationcharacteristicsinlandmobileservice Issued on. 2012-12-31 2013-06-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released Table of ContentsPreface Ⅰ 1 Scope 1 2 Normative references 1 3 Terms and definitions 4 basic propagation curves 3 5 field strength value prediction mode 16 5.1 median field strength prediction formula 16 5.2 Basic transmission loss quasi-smooth terrain 16 5.3 hills, mountains path basic transmission loss 17 6 in field strength with location and time 18 6.1 Characteristics of the field strength varies with time 18 ΣL 6.2 standard deviation with location changes (dB) 18 6.3 standard deviation over time σt (dB) 18 7 business field, interference field strength and the carrier/interference ratio 18 7.1 Business field strength 18 7.2 interference field strength 19 7.3 Upload/dry ratio of 20 8 usable field strength 20 8.1 usable field strength formula 20 8.2 single interference of usable field strength 20 8.3 Multiple interference of usable field strength 20 9 coverage area 21 9.1 coverage area definition 21 9.2 Location probability contour equation 21 9.3 determine the location probability contours 21 10 allowable interference coordination distance and 22 10.1 allowable interference 22 Coordination distance 10.2 22 11 minimum usable field strength and RF protection ratios 22 OK 23 Annex A (informative) base station antenna height Annex B (informative) mobile antenna height gain factor 24 Annex C (informative) downtown streets toward the correction factor 25 References 26ForewordGB/T 14617 "land mobile service and fixed service propagation characteristics" is divided into three parts. --- Part 1. Propagation characteristics in land mobile service; Part --- Article 2. 100MHz ~ 1000MHz fixed service propagation characteristics; --- Part 3. sight radio relay communication system propagation characteristics. This section GB/T Part of 114,617. This section drafted in accordance with GB/T 1.1-2009 given rules. This Part replaces GB/T 14617.1-1993 "land mobile service and fixed service propagation characteristics of the first part. land mobile service Propagation characteristics. " This portion of the GB/T 14617.1-1993 compared, in addition to editorial changes outside the main technical changes are as follows. --- Edit "Subject Matter and Scope 1" to "1" and (see Chapter 1, Chapter 1 of the 1993 edition); --- Edit "2 reference standard" is "2 Normative references", and modify the text description and an increase in this section have been referenced in Regulation Normative reference file name (see Chapter 2, 1993 edition of the Chapter 2); --- Edit "3 definition of" is "3 Terms and Definitions", and according to the recently amended section deletions corresponding content (see Chapter 3, 1993 edition Chapter 3); --- Reference ITU-RP.1406-1 (2007) proposed to amend the latest "change place with 6.2 standard deviation" in the relevant formula (see . 62, 1993 edition 6.1); --- Reference ITU-RP.1406-1 (2007) recommended that the latest changes to the "6.3 standard deviation change over time" in Table 1 up Charge (see 63, 1993 version 6.2.); --- Edit "Appendix A ~ Appendix C 'supplement' and 'Reference member'" as "informative annex" can be read as an extension of the body content (See Appendix A ~ Appendix C, 1993 edition of Appendix A ~ Appendix C); --- Increased when used in this part of the preparation of reference of a national standard and 6 ITU-R Recommendations incorporated by reference. This part is proposed by the Ministry of Industry and Information Technology of the People's Republic of China. This part of the jurisdiction of the China Communications Standards Association. The drafting of this section. Datang Telecom Technology and Industry Group. The main drafters of this section. Zhao Hongfeng, Xu Hongmei, Fan Yongjun, Ma Yuan Chen, Xu Tong. This section was first released in 1993, this is the first amendment. Land mobile service and fixed service propagation characteristics Part 1. Propagation characteristics in land mobile service1 ScopeGB/T 14617 in the provisions of this part of the 150MHz ~ 3000MHz band land mobile services propagation prediction methods, including field strength Prediction mode, the prediction mode interference, coverage prediction methods and coordination distance calculation. This section applies to 150MHz ~ 3000MHz band land mobile communications network planning, system design, spread spectrum management prediction.2 Normative referencesThe following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 14431 radio services desired signal/interference protection ratios and minimum usable field strength3 Terms and DefinitionsThe following terms and definitions apply to this document. 3.1 Downtown urbanarea Intensive than 10m tall buildings and the building of two or more towns, community, or two or more clouds and buildings more than 10m thick Large village woods. 3.2 Suburb suburbanarea Scattered buildings, small buildings and trees in general villages, where the mobile station at the time of travel, there are some near the barrier, but a barrier is not serious. 3.3 Rural roads ruralroad Only thin roadside trees and scattered houses roads. 3.4 Open area openarea Farmland and open space and the like, it does not impede the sight of any feature in 300m ~ 400m wide near field, also in the entire propagation path Few tall trees or buildings blocking. 3.5 Forest forestedarea In the aspect 300m ~ 400m above the scope of 10m height above the jungle area. 3.6 Quasi-smooth terrain quasi-smoothterrain Height fluctuations within 20m, change is slow and the average height difference between the ground no more than 20m terrain. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 14617.1-2012_English be delivered?Answer: Upon your order, we will start to translate GB/T 14617.1-2012_English as soon as possible, and keep you informed of the progress. 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