RECOMMENDATION ITU-R P.1411-2 - Propagation data and prediction methods for the planning of short-range outdoor radiocommunication systems and radio local area networks in the frequency range 300 MHz to 100 GHz
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چکیده
The ITU Radiocommunication Assembly, considering a) that many new short-range (operating range less than 1 km) mobile and personal communication applications are being developed; b) that there is a high demand for radio local area networks (RLANs) and wireless local loop systems; c) that short-range systems using very low power have many advantages for providing services in the mobile and wireless local loop environment; d) that knowledge of the propagation characteristics and the interference arising from multiple users in the same area is critical to the efficient design of systems; e) that there is a need both for general (i.e. site-independent) models and advice for initial system planning and interference assessment, and for deterministic (or site-specific) models for some detailed evaluations, noting a) that Recommendation ITU-R P.1238 provides guidance on indoor propagation over the frequency range 900 MHz to 100 GHz, and should be consulted for those situations where both indoor and outdoor conditions exist; b) that Recommendation ITU-R P.1546 provides guidance on propagation for systems that operate over distances of 1 km and greater, and over the frequency range 30 MHz to 3 GHz, recommends 1 that the information and methods in Annex 1 be adopted for the assessment of the propagation characteristics of short-range outdoor radio systems between 300 MHz and 100 GHz where applicable.
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RECOMMENDATION ITU-R P.1411-1 - Propagation data and prediction methods for the planning of short-range outdoor radiocommunication systems and radio local area networks in the frequency range 300 MHz to 100 GHz
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