IEEE

Classé dans : SAN Standardisation | 0

The Institute of Electrical and Electronics Engineers has been another target of SAN consortium. Two articles relative to D2D have been published:   “An Energy Efficient D2D LTE structure for PMR based on FlashLinQ”, by Xavier Pons (Airbus DS), Christophe … Lire la suite­­

contributions to 3GPP

Classé dans : SAN Standardisation | 0

R1-133518 Principles of broadcast D2D communication for public safety This contribution suggests some general principles to be used for D2D broadcast communications such as modulation, re-use of existing LTE channels and synchronization.   R1-134543 Synchronization principles for broadcast D2D communication … Lire la suite­­

3GPP Mobile relay study item

Classé dans : SAN Standardisation | 0

Below is an extract from the last status report of the study item (RP-140726), presented at RAN plenary meeting #64 (September 2014):   TSG meeting # TSG Tdoc number of status report TSG Tdoc of WI/SI description sheet as approved … Lire la suite­­

LIAISON STATEMENT FROM TCCA TO 3GPP

Classé dans : SAN Standardisation | 0

SAN project timeslot has matched with the interest of TCCA CCBG (TETRA Critical Communication Association – Critical Communication Broadband Group) on ad hoc networks and D2D communications. The work on ProSe (Proximity Services) has started as a study item in … Lire la suite­­

D2D DISCOVERY

Classé dans : SAN Standardisation | 0

ProSe Direct Discovery is defined as the procedure used to discover other UE(s) in its proximity, using E-UTRA direct radio signals via PC5. In Release 12, discovery mechanisms were not the main focus for Public Safety and it was required … Lire la suite­­

D2D COMMUNICATIONS

Classé dans : SAN Standardisation | 0

Since the current PMR standards already include direct communication between devices, the introduction of the device-to-device (D2D) communication in the LTE standard was one of the main requirements from Public Safety organizations. To cope with the timescale of the Release … Lire la suite­­

D2D SYNCHRONIZATION

Classé dans : SAN Standardisation | 0

When the UEs are within coverage, the synchronization is derived from the downlink signals transmitted by the eNodeB. In LTE, these signals are the Primary and the Secondary Synchronization Signals (PSS and SSS). The UEs derived from these two signals … Lire la suite­­

LTE direct communications

Classé dans : SAN Standardisation | 0

Direct communication between devices in out-of-network coverage was listed as one of the key requirement for public safety users that was not in the scope of the 3GPP work plan. As a consequence, 3GPP approved in September 2011 a first … Lire la suite­­

STANDARDISATION STATUS

Classé dans : SAN Standardisation | 0

Up to now, there are two separate technology families for commercial cellular network (based on standards such as GSM, UMTS-3G, IS-95 …) and dedicated public safety systems (based on standards such as TETRA, TETRAPOL, P25 …). The National Public Safety … Lire la suite­­

SAN standardisation

Classé dans : SAN Standardisation | 0

During the SAN project many topics partially addressed by current standardisation bodies (3GPP, IEEE) have been investigated. As the main technology selected under the SAN project is LTE, the most important innovation produced during the project was relative to that … Lire la suite­­