SMG2 have according to the UTRA definition procedure elaborated proposal for concept groups for the definition of the UMTS Terrestrial Radio Access UTRA. This work have resulted in the following five concept groups: a - concept: Wideband CDMA Allocated to this groups are the following original proposals: -FRAMES FMA mode 2 (CSEM/Pro Telecom, Ericsson, France Telecorn/CNET, Nokia, Siemens) -Wideband Code Division Multiple Access (W-CDMA) (Fujitsu Europe Telecom R&D Centre) -Wideband Direct Sequence (DS) CDMA, (NEC Technologies (UK) Ltd) -DS-CDMA Utilising FDD and TDD, (Panasonic (Matsushita Europe & Matsushita Comm. Ind. Ltd)) b- concept: OFDM Allocated to this groups are the following original proposals: -Band Division Multiple Access (BDMA) (OFDM & SFH-TDMA), (Sony International (Europe) Gmbh) -Orthogonal Frequency Division Multiple Access (OFDMA) (Telia Research) -OFDMA (Lucent Technologies) g - concept: Wideband TDMA Allocated to this groups are the following original proposals: -Frames FMA mode 1 without spreading (CSEM/Pro Telecom, Ericsson, France Telecom/CNET, Nokia, Siemens) d - concept: Wideband TDMA/CDMA Allocated to this groups are the following original proposals: -Code Time Division Multiple Access (CTDMA) (Swiss Telecom PTT) -Frames FMA mode 1 with spreading (CSEM/Pro Telecom, Ericsson, France Telecom/CNET, Nokia, Siemens) e - concept: ODMA Allocated to this groups are the following original proposals: -Opportunity Driven Multiple Access (ODMA) (Vodafone LTD., Salbu R&D (Pty) Ltd.) The following proposals are considered relevant for more than one Concept Group: For the b, g, d concept groups are allocated the proposal Flexible Frames Structure (Philips Consumer Communications/Philips Research Laboratories). For all concept groups are allocated the proposal Multi-Dimensional Packet Reservation Multiple Access (MD PRMA) (NEC technologies (UK) Ltd., Kings College London). Templates describing the key attributes of the proposals contained in the five concept groups follow.