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1. WO1999031811 - POWER SAVING PROTOCOL FOR TDMA MULTI-LINE WIRELESS TELEPHONE HANDSETS

Publication Number WO/1999/031811
Publication Date 24.06.1999
International Application No. PCT/US1998/018061
International Filing Date 01.09.1998
Chapter 2 Demand Filed 29.06.1999
IPC
H04B 1/16 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
06Receivers
16Circuits
H04B 7/26 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
24for communication between two or more posts
26at least one of which is mobile
H04M 1/73 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
MTELEPHONIC COMMUNICATION
1Substation equipment, e.g. for use by subscribers
72Substation extension arrangements; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selecting
725Cordless telephones
73Battery saving arrangements
H04W 52/02 2009.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
52Power management
02Power saving arrangements
CPC
H04B 1/16
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
06Receivers
16Circuits
H04B 1/1615
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
06Receivers
16Circuits
1607Supply circuits
1615Switching on; Switching off, e.g. remotely
H04W 52/0216
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
52Power management, e.g. TPC [Transmission Power Control], power saving or power classes
02Power saving arrangements
0209in terminal devices
0212managed by the network, e.g. network or access point is master and terminal is slave
0216using a pre-established activity schedule, e.g. traffic indication frame
H04W 56/003
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
56Synchronisation arrangements
003Arrangements to increase tolerance to errors in transmission or reception timing
Y02D 30/70
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
30Reducing energy consumption in communication networks
70in wireless communication networks
Applicants
  • THOMSON LICENSING S.A. [FR]/[FR] (AllExceptUS)
  • KNUTSON, Paul, Gothard [US]/[US] (UsOnly)
  • RAMASWAMY, Kumar [IN]/[US] (UsOnly)
Inventors
  • KNUTSON, Paul, Gothard
  • RAMASWAMY, Kumar
Agents
  • TRIPOLI, Joseph, S.
Priority Data
60/069,34212.12.1997US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) POWER SAVING PROTOCOL FOR TDMA MULTI-LINE WIRELESS TELEPHONE HANDSETS
(FR) PROTOCOLE DE GESTION D'ENERGIE POUR COMBINE DE TELEPHONE TDMA SANS FIL MULTILIGNE
Abstract
(EN) A wireless telephone system comprises a base unit having a base transceiver, and one or more wireless handsets, each handset comprising a handset transceiver. Each handset establishing a time-division multiple access (TDMA) link over a shared RF channel with the base unit via the base transceiver in accordance with a TDMA epoch, which allocates exclusive data and audio packet time slots to each handset. Each handset powers on its transceiver during its respective data and audio packet time slots as necessary to synchronize with the base unit using synchronization data transmitted with a data packet, to detect incoming call data transmitted with a data packet, or to transmit and receive audio information over the TDMA link. The handset powers off its transceiver otherwise during the epoch to minimize handset power use.
(FR) La présente invention concerne un réseau de téléphonie sans fil comprenant une unité de base comportant un émetteur-récepteur de base, et un ou plusieurs combinés sans fil, chaque combiné comprenant un émetteur-récepteur de combiné. Chaque combiné établit dans une voie HF partagée avec l'unité de base une liaison à accès multiple par répartition dans le temps (TDMA), via l'émetteur-récepteur, selon une époque TDMA attribuant à chaque combiné des intervalles de temps exclusifs de paquets audio et de paquets de données. Chaque combiné s'alimente par son émetteur-récepteur pendant ses propres intervalles de temps de paquets audio et de paquets de données, condition nécessaire pour qu'il soit synchronisé avec l'unité de base en utilisant des données de synchronisation transmises avec un paquet de données, de manière à détecter les données d'appels d'arrivée transmises avec un paquet de données, ou à transmettre et recevoir les informations audio par la liaison TDMA. Le combiné coupe l'alimentation de son émetteur-récepteur pendant l'époque pour réduire au minimum la consommation d'énergie du combiné.
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