Hivatkozási szám

MSZ EN 300 175-3:2013 1.

Dokumentumazonosító

154651

Cím

Digitális, továbbfejlesztett, zsinór nélküli távközlés (DECT). Közös interfész (CI). 3. rész: Közeg-hozzáférési (MAC) réteg

Angol cím

Digital,Enhanced Cordless Telecommunications (DECT). Common Interface (CI). Part 3: Medium Access Control (MAC) layer

Alkalmazási terület

The present document is one of the parts of the specification of the Digital Enhanced Cordless Telecommunications (DECT) Common Interface (CI). The present document specifies the physical channel arrangements. DECT physical channels are radio communication paths between two radio end points. A radio end point is either part of the fixed infrastructure, a privately owned Fixed Part (FP), typically a base station, or a Portable Part (PP), typically a handset. The assignment of one or more particular physical channels to a call is the task of higher layers. The Physical Layer (PHL) interfaces with the Medium Access Control (MAC) layer, and with the Lower Layer Management Entity (LLME). On the other side of the PHL is the radio transmission medium which has to be shared extensively with other DECT users and a wide variety of other radio services. The tasks of the PHL can be grouped into five categories: a) to modulate and demodulate radio carriers with a bit stream of a defined rate to create a radio frequency channel; b) to acquire and maintain bit and slot synchronization between transmitters and receivers; c) to transmit or receive a defined number of bits at a requested time and on a particular frequency; d) to add and remove the synchronization field and the Z-field used for rear end collision detection; e) to observe the radio environment to report signal strengths. The present document includes New Generation DECT, a further development of the DECT standard introducing wideband speech, improved data services, new slot types and other technical enhancements. The present document includes New Generation DECT, a further development of the DECT standard introducing wideband speech, improved data services, new slot types and other technical enhancements.

ICS

33.070.30 Digitális, továbbfejlesztett, zsinór nélküli távközlés (DECT)

Műszaki Bizottság

A szabvány nyelve

angol

Az érvényesség kezdete

2013-01-01

A visszavonás napja

2015-02-01

Forrás

idt EN 300 175-3:2012-04

Előd

MSZ EN 300 175-3:2010

Utód

Módosítás

SZK-közlemények

Kapcsolódó európai jogszabály

A szabvány

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Papír ,
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298 oldal; XG kategória

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