WO2007052187A1 - Indicateur de teleappel associe - Google Patents

Indicateur de teleappel associe Download PDF

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Publication number
WO2007052187A1
WO2007052187A1 PCT/IB2006/053939 IB2006053939W WO2007052187A1 WO 2007052187 A1 WO2007052187 A1 WO 2007052187A1 IB 2006053939 W IB2006053939 W IB 2006053939W WO 2007052187 A1 WO2007052187 A1 WO 2007052187A1
Authority
WO
WIPO (PCT)
Prior art keywords
receiver
paging indicator
indicator signal
state
states
Prior art date
Application number
PCT/IB2006/053939
Other languages
English (en)
Inventor
Olivier J-M. Hus
Matthew P. J. Baker
Timothy J. Moulsley
Original Assignee
Koninklijke Philips Electronics N.V.
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 as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninklijke Philips Electronics N.V. filed Critical Koninklijke Philips Electronics N.V.
Publication of WO2007052187A1 publication Critical patent/WO2007052187A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/02—Arrangements for increasing efficiency of notification or paging channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like

Definitions

  • the invention relates to a receiver for receiving a wireless communication signal and a transmitter for transmitting a wireless communication signal.
  • the invention further relates to a mobile terminal comprising such receiver and a base station comprising such transmitter.
  • the invention relates to a communication system comprising such mobile terminal and base station and to a Paging indicator signal for use with the receiver.
  • the field of the invention is telecommunication systems such as WCDMAAJMTS telecommunication systems which encompasses both data and voice telecommunication services.
  • the invention is suitable for application in mobile terminals such as a mobile phone or a Personal Digital Assistant or a mobile personal computer having a wireless connection and the like.
  • Mobile terminals generally can be in different logical states depending on the required mode of operation. Examples of logical states in the UTRAN of WCDMA / UMTS are e.g. Idle Mode, CELL DCH, CELL PCH, URA PCH as will be apparent to the person skilled in the art.
  • the signals for setting up and maintaining a UTRAN connection between transmitters and receiver are transported on a multitude of transport channels such as the Paging channel PCH for transmitting Paging Indicators and the Forward Access Channel (CELL-FACH) for transmitting low-rate data.
  • transport channels such as the Paging channel PCH for transmitting Paging Indicators and the Forward Access Channel (CELL-FACH) for transmitting low-rate data.
  • a receiver upon receiving a Paging Indicator in an Idle Mode state, may be told to wake-up and switch to a CELL F ACH state to start receiving a FACH transmission.
  • a receiver in Idle Mode When a receiver in Idle Mode is paged and told to switch state to CELL F ACH before receiving a FACH transmission, it has to go through various signaling protocols with the transmitter to initiate a state transition. It will be apparent to the skilled person in the art of telecommunications that this adds latency to the system, which is undesirable.
  • the receiver for receiving wireless communication signals from a transmitter is arranged to operate in one of a plurality of states wherein the receiver is arranged to perform a state transition from the current state to another state among the plurality of states upon reception of a Paging Indicator Signal, the Paging Indicator Signal comprising an indication of the one of the plurality of states to which the state transition is to be performed.
  • the paging indicator signal itself that instructs to perform the required state switch.
  • the state transition is a direct state transition.
  • direct means that the state change is immediate after receipt of the Paging Indicator Signal and that no additional signaling is needed to carry out the state change. It will be apparent to the skilled person that by eliminating signaling during each state change less latency is introduced resulting in a faster set up.
  • the Paging Signal Indicator is an encoded indicator that is representative of associated characteristics of state transitions, corresponding (transport) channels and other merged parameters.
  • the paging Indicator Signal may assume different values, wherein a value is to be understood in the broadest possible sense and not limited to numerical values.
  • the associated characteristics of a Paging Indicator Signal may, for example, encapsulate information on the state after the required transition (which may be dependent on the state in which the receiver is when the paging indicator signal is received) and about channels to be received before and after.
  • the Paging Signal Indicator signal comprises an indication of to which state the receiver has to perform a state transition.
  • the value that the Paging Indicator Signal can assume can either be selected from a group of pre-configured characteristics or may be generated ad-hoc.
  • the Paging Indicator Signal may for example select a value out of a virtual matrix that is formed by state transitions versus the channels. Consequently an entry in the virtual matrix would indicate a possible state transition and the channels that correspond to that state.
  • the pre-configured virtual matrix could be pre-programmed in the system or could be generated at run-time for example during a set-up phase between transmitter and receiver.
  • the Paging Indicator Signal may or may not be transmitted to/received by each of the receivers or may - upon reception - be interpreted differently in accordance with a pre-configured programming of the receiver.
  • a state change for example from Idle Mode to CELL-FACH the
  • the Paging Indicator Signal can instruct the receiver to wake-up, to switch to a CELL-FACH state and to start receiving a FACH transmission. It will be apparent to the skilled person that the Paging Indicator Signal can also be used to enforce other receiver settings such a selection of frequency. In this case, the Paging Indicator Signal serves as a frequency reselection indicator that may be used in e.g. network-assisted frequency reselection such as for the Frequency Layer Convergence Scheme for MBMS (Multimedia Broadcast Multicast Service), which is well known in the art.
  • the Paging Indicator Signal could be used to define the type of data reception such as broadcast, multicast or unicast reception. Alternatively, the state change could even enforce the receiver to operate in several virtual states at a time.
  • the receiver is further arranged to receive a data signal after the state transition, the data signal being of a type suited for the reception by the receiver during the second state to which the receiver has transitioned.
  • the Paging Indicator Signal serves as a kind of a preamble carrying information of the service availability of the data signal e.g. a broadcast data signal, which is to be received next.
  • the receiver is further arranged to receive the data signal and the Paging Indicator Signal in a time-multiplexed fashion, wherein the data signal and the paging Indicator Signal are time-multiplexed onto a single channel.
  • a single channel can be a logical or a physical channel.
  • the paging information and the data signal are still separated services from the point of view of the receiver, however they are carried over a single channel.
  • the MAC (layer 2) layer may indicate to a physical layer (layer 1) of the device that a new transport channel is to be received, possibly on a different physical channel, which demands a switch between channels and results in further delay.
  • the benefit of the approach chosen is that it allows the receiver, or actually any device comprising such receiver to listen to e.g. a subsequent Broadcast data transmission immediately after having received a Paging Indicator Signal, without having to switch state or channel, hence reducing signaling overhead and channel set-up delays thereby further reducing the latency of the system.
  • a further advantage is that by using a single combined channel, instead of two independent channels, the number of channels itself can be reduced, which is helpful in freeing up scarce resources of the wireless link between the transmitter and the receiver.
  • a reduction of the number of channels both logical and physical results in a simpler mapping of high layer (e.g. MAC) application and physical layer parameters.
  • PFACH Paging & Forward Access Channel
  • Both the Paging Indicator Signal and the Broadcast data services are transmitted on the PFACH channel under a time-multiplexing scheme.
  • the receiver is connected to the network is in dormant state, i.e. the receiver is occasionally listening for paging information on the PFACH channel, and the terminal is discontinuously receiving for power saving purposes.
  • a transmitter may transmit a specific Paging Indicator Signal to the terminal to inform the receiver that it is to receive some Broadcast data in an upcoming transmission scheduled on the PFACH.
  • the receiver Upon reception of the Paging Indicator Signal the receiver informs its internal physical layers of the upcoming changes in the transport format and that reception should be switched to continuous mode. The receiver may then switch to a more active state from the point of view of its internal layers, while keeping the same connected state to the network. Having performed the necessary changes for reception of the Broadcast information on the PFACH, the user terminal receives the Broadcast service.
  • the actual state transition between Paging in Idle Mode and reception of Broadcast data in CELL F ACH no longer needs to occur as such in terms of signaling, as it is superseded by a virtual switch that occurs within the user terminal and that is transparent to the network.
  • Paging and Broadcast data are sent on the same channel and are differentiated by the use of discontinuous reception where the user terminal listens to a simple signal at regular intervals (Paging) and only wakes-up to listen continuously to a data service (Broadcast) if it receives a Paging Indicator Signal.
  • the transmitter is arranged to time-multiplex the transmission of the Paging Indicator Signals to at least one of the at least one receivers wherein a time periodicity in the time-multiplexing of the Paging Indicator Signals is a configurable time periodicity.
  • a time periodicity in the time-multiplexing of the Paging Indicator Signals is a configurable time periodicity.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Cette invention concerne un récepteur chargé de recevoir des signaux de communication sans fil d'un émetteur, lequel récepteur est conçu pour fonctionner dans l'un d'une pluralité d'états. Le récepteur est conçu pour réaliser une transition d'état entre l'état en cours et un autre état parmi la pluralité d'états dès réception d'un signal indicateur de téléappel. Le signal indicateur de téléappel comprend une indication de l'état, parmi la pluralité d'états, vers lequel la transition d'état doit être réalisée.
PCT/IB2006/053939 2005-11-01 2006-10-26 Indicateur de teleappel associe WO2007052187A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP05110229 2005-11-01
EP05110229.1 2005-11-01

Publications (1)

Publication Number Publication Date
WO2007052187A1 true WO2007052187A1 (fr) 2007-05-10

Family

ID=35811716

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2006/053939 WO2007052187A1 (fr) 2005-11-01 2006-10-26 Indicateur de teleappel associe

Country Status (2)

Country Link
TW (1) TW200733770A (fr)
WO (1) WO2007052187A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3249991A1 (fr) * 2007-09-27 2017-11-29 Intellectual Ventures Holding 81 LLC Procédé et appareil de transmission de canaux de transport sur un canal physique d'un système de communication cellulaire

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1420551A2 (fr) * 2002-11-06 2004-05-19 Samsung Electronics Co. Ltd. Procédé pour la transmission et la réception de messages de contrôle dans un système de communication mobile fournissant un service multimedia-broadcast/multicast
US20040229605A1 (en) * 2003-05-14 2004-11-18 Samsung Electronics Co., Ltd. Method for transmitting MBMS paging information in a mobile communication system
WO2005006829A2 (fr) * 2003-07-11 2005-01-27 Interdigital Technology Corporation Unite de transmission/reception sans fil avec etat de transition entre un etat de surveillance et un etat connecte en duplex, et procede correspondant

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1420551A2 (fr) * 2002-11-06 2004-05-19 Samsung Electronics Co. Ltd. Procédé pour la transmission et la réception de messages de contrôle dans un système de communication mobile fournissant un service multimedia-broadcast/multicast
US20040229605A1 (en) * 2003-05-14 2004-11-18 Samsung Electronics Co., Ltd. Method for transmitting MBMS paging information in a mobile communication system
WO2005006829A2 (fr) * 2003-07-11 2005-01-27 Interdigital Technology Corporation Unite de transmission/reception sans fil avec etat de transition entre un etat de surveillance et un etat connecte en duplex, et procede correspondant

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ETSI: "TS 125 331 Universal Mobile Telecommunications System (UMTS); RRC Protocol Specification (3G TS 25.331 Version 3.1.0 Release 1999)", ETSI TS 125 331 V3.1.0, XX, XX, January 2000 (2000-01-01), pages 1 - 282, XP002165164 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3249991A1 (fr) * 2007-09-27 2017-11-29 Intellectual Ventures Holding 81 LLC Procédé et appareil de transmission de canaux de transport sur un canal physique d'un système de communication cellulaire
US10136416B2 (en) 2007-09-27 2018-11-20 Intellectual Ventures Holding 81 Llc Communicating on a shared channel in a wireless network
US11523373B2 (en) 2007-09-27 2022-12-06 Intellectual Ventures Holding 81 Llc Communicating on a shared channel in a wireless network
US11974280B2 (en) 2007-09-27 2024-04-30 Intellectual Ventures Holding 81 Llc Communicating on a shared channel in a wireless network

Also Published As

Publication number Publication date
TW200733770A (en) 2007-09-01

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