Fixed Radio Systems - Point-to-multipoint equipment - Frequency Hopping Code Division Multiple Access (FH-CDMA) - Point-to-multipoint digital radio systems in frequency bands in the range 3 GHz to 11 GHz
Действует
Печатная копияПечатное издание
58.97 € (включая НДС 20%)
Разработчик:
Зарубежные/ON
ICS:
33.060.30 Radio relay and fixed satellite communications systems / Радиорелейные и стационарные спутниковые системы связи, 33.040.20 Transmission. Including synchronization, cable systems, integrated cabling, pathways and multiplexing / Системы передачи. Включая синхронизацию, кабельные системы, интегрированные кабельные системы, магистрали и уплотнение каналов
Описание
1.1 Applications The scope of the present document covers the following typical P-MP applications, delivered directly or indirectly, or in any superimposed transport network layer: voice; fax; voiceband data; telex; data; integrated Services Digital Network (ISDN); Internet access. 1.2 Frequency bands and channel arrangements The present document covers Fixed Service allocations in the 3 GHz to 11 GHz bands. Bands presently identified and provided with specific channel arrangements by CEPT for point to multipoint applications between 3 GHz and 11 GHz are: - 3 410 MHz to 3 600 MHz CEPT/ERC Recommendation 14-03 [3]; - 3 600 MHz to 4 200 MHz CEPT/ERC Recommendation 12-08 [2]; - 10,15 GHz to 10,3 GHz paired with 10,50 GHz to 10,65 GHz CEPT/ERC Recommendation 12-05 [1]. The present document may cover equipment which uses either Frequency Division Duplexing or Time Division Duplexing. NOTE: As with other point-to-multipoint standards, attention should be given to assigning spectrum so as to allow different systems to operate in adjacent assigned frequencies without unacceptable mutual interference. This is the responsibility of the regulatory authorities that are advised to note any guidelines produced by CEPT, particularly those with reference to spectrum where different duplex methods are to be used.