Radio Equipment and Systems (RES); Digital Enhanced Cordless Telecommunications (DECT); Data Services Profile (DSP); Generic Data Link Service for Closed User Groups (Service Type C@ Mobility Class 1)
This (ETS) defines a data profile for Digital Enhanced Cordless Telecommunications (DECT) systems conforming to ETS 300 175@ Parts 1 to 9 [1] to [9]. It is part of a family of profiles that build upon@ and extend@ each other@ aimed at the general connection of terminals supporting non-voice services to a fixed infra-structure@ private and public. This ETS defines the type C service@ mobility class 1@ as described in ETR 185 [13]. For the type C service@ this ETS specifies a Link Access Protocol service for the DECT Link Access Procedure for the User plane (LAPU) which adds full DLC functionality to the generic frame relay service specified in ETS 300 435 [11]. LAPU is based closely on the existing LAPC service and@ allied with the generic frame relay service@ offers a robust@ non-transparent transfer mechanism for synchronous and asynchronous bit streams. It builds upon the type A and type B generic frame relay services and is therefore fully compatible with both. This ETS is intended for use in closed user groups and therefore specifies mobility class 1. It contains no requirements for Mobility Management (MM) or Call Control (CC) and@ hence@ requires no DECT Control plane (C-plane) functionality. This ETS defines the specific requirements on the Physical (PHL)@ Medium Access Control (MAC) and Data Link Control (DLC) layers of DECT and on ETS 300 435 [11]. The ETS also specifies Management Entity (ME) requirements and generic interworking conventions which ensure the efficient use of the DECT spectrum.