mondoiop.blogg.se - Tetrapol fdma transmission

#Tetrapol fdma transmission pdf
#Tetrapol fdma transmission professional

#Tetrapol fdma transmission professional

TETRA is an open trunked radio standard that was started in 1988 by the European Commission and the ETSI for the special needs of professional mobile radio needs including not only speech but later also data. The operators try to minimize the costs GSM networks cause and try to maximize the services and prices for the end users, for instance with dial tones for € 1.99. These consumer care less about security and quality of service.

238000004642 transportation engineering Methods 0.Several technologies are available for public safety and security ( PSS) networks : TETRA and Tetrapol have been developed for advanced mobile radio requirements whereas GSM and UMTS have been developed for end consumers.

281999990011 institutions and organizations companies 0.000 description 5.

238000005516 engineering processes Methods 0.000 description 5.

230000005540 biological transmission Effects 0.000 description 7.

238000005859 coupling reaction Methods 0.000 abstract description 3.

238000010168 coupling process Methods 0.000 abstract description 3.

230000001808 coupling Effects 0.000 abstract description 3.Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by Siemens Schweiz AG filed Critical Siemens Schweiz AG Priority to EP09161928A priority Critical patent/EP2259658A1/en Publication of EP2259658A1 publication Critical patent/EP2259658A1/en Status Withdrawn legal-status Critical Current Links Original Assignee Siemens Schweiz AG Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Inventor Patrick Mächler Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Withdrawn Application number EP09161928A Other languages German ( de)

#Tetrapol fdma transmission pdf

Google Patents Method for interconnecting two Private Mobile Radio networksĭownload PDF Info Publication number EP2259658A1 EP2259658A1 EP09161928A EP09161928A EP2259658A1 EP 2259658 A1 EP2259658 A1 EP 2259658A1 EP 09161928 A EP09161928 A EP 09161928A EP 09161928 A EP09161928 A EP 09161928A EP 2259658 A1 EP2259658 A1 EP 2259658A1 Authority EP European Patent Office Prior art keywords pmr network terminal gateway call Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents EP2259658A1 - Method for interconnecting two Private Mobile Radio networks EP2259658A1 - Method for interconnecting two Private Mobile Radio networks