(19)
(11) EP 2 957 082 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
10.06.2020 Bulletin 2020/24

(45) Mention of the grant of the patent:
22.04.2020 Bulletin 2020/17

(21) Application number: 14707205.2

(22) Date of filing: 12.02.2014
(51) International Patent Classification (IPC): 
H04L 5/00(2006.01)
H04W 56/00(2009.01)
H04L 25/03(2006.01)
H04L 27/34(2006.01)
H04W 84/08(2009.01)
H04L 27/26(2006.01)
(86) International application number:
PCT/GB2014/050398
(87) International publication number:
WO 2014/125264 (21.08.2014 Gazette 2014/34)

(54)

TETRA-BASED MOBILE COMMUNICATIONS SYSTEM

TETRABASIERTES MOBILKOMMUNIKATIONSSYSTEM

SYSTÈME DE COMMUNICATION MOBILE TETRA


(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30) Priority: 12.02.2013 GB 201302414
17.09.2013 GB 201316510

(43) Date of publication of application:
23.12.2015 Bulletin 2015/52

(73) Proprietor: SEPURA LIMITED
Cambridge CB25 9TL (GB)

(72) Inventor:
  • STEPHENS, Peter
    Cambridge Cambridgeshire CB4 1GR (GB)

(74) Representative: Dehns 
St. Bride's House 10 Salisbury Square
London EC4Y 8JD
London EC4Y 8JD (GB)


(56) References cited: : 
WO-A1-2005/048551
US-B1- 7 133 421
   
  • "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 2: Air Interface (AI);03206v343", ETSI DRAFT; 03206V343, EUROPEAN TELECOMMUNICATIONS STANDARDS INSTITUTE (ETSI), 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS ; FRANCE, vol. TCCE, no. V3.4.3, 10 August 2011 (2011-08-10), pages 1-1399, XP014167936, [retrieved on 2011-08-10]
  • David Tse ET AL: "Fundamentals of Wireless Communication; Chapter 3: Point-to-point communication: detection, diversity, and channel uncertainty", , 31 December 2005 (2005-12-31), pages 49-119, XP055164655, Retrieved from the Internet: URL:https://web.stanford.edu/~dntse/Chapte rs_PDF/Fundamentals_Wireless_Communication _chapter3.pdf [retrieved on 2015-01-23]
  • MEHDI NOURI ET AL: "TEDS: A high speed digital mobile communication air interface for professional users", IEEE VEHICULAR TECHNOLOGY MAGAZINE, IEEE, US, vol. 1, no. 4, 1 December 2006 (2006-12-01), pages 32-42, XP011176540, ISSN: 1556-6072
   
Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).