WO2005064977A1 - Procede et systeme permettant de commander le support d'acces dans un service de donnees en temps reel - Google Patents

Procede et systeme permettant de commander le support d'acces dans un service de donnees en temps reel Download PDF

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Publication number
WO2005064977A1
WO2005064977A1 PCT/FI2004/000801 FI2004000801W WO2005064977A1 WO 2005064977 A1 WO2005064977 A1 WO 2005064977A1 FI 2004000801 W FI2004000801 W FI 2004000801W WO 2005064977 A1 WO2005064977 A1 WO 2005064977A1
Authority
WO
WIPO (PCT)
Prior art keywords
real
channel state
time
network
user equipment
Prior art date
Application number
PCT/FI2004/000801
Other languages
English (en)
Inventor
Terhi Tuulikki Virtanen
Pekka Marjelund
Petri J. Vuorinen
Jukka K. Jaakkola
Original Assignee
Nokia Corporation
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
Priority claimed from FI20031911A external-priority patent/FI20031911A0/fi
Application filed by Nokia Corporation filed Critical Nokia Corporation
Priority to EP04805196A priority Critical patent/EP1702487A1/fr
Publication of WO2005064977A1 publication Critical patent/WO2005064977A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/06—Reselecting a communication resource in the serving access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup

Definitions

  • the present invention relates to real-time communications services in com ⁇
  • PLMN public land mobile network
  • CN core network
  • AN access network
  • the access network AN may be called a base station subsystem (BSS) for GSM
  • RNS radio network subsystem
  • RAN radio access network
  • network CN is logically divided into a circuit switched (CS) domain, a packet
  • PS switched
  • IMS IP multimedia subsystem
  • a "CS type of connection" is a
  • An example of the PS domain is the GPRS (General Packet
  • Radio Service may include a serving GPRS support node
  • SGSN SGSN
  • GGSN gateway GPRS support node
  • IP multimedia subsystem IMS utilizes the PS domain to transport multimedia signaling and bearer
  • Push-to-talk over Cellular is an overlay speech service in a mobile cel ⁇
  • tary/police radios LA radios
  • walkie-talkie type of radios tary/police radios
  • a call is based on the use of a pressel (PTT, push-to-talk switch) in a
  • VAD vacuum detector
  • predetermined criteria such as the availability of resources, priority of the requesting
  • the requesting user may talk and the other users may listen.
  • the resources are reserved only for the actual speech transaction or speech item, instead of reserving the resources for
  • PoC Cellular
  • tions reside in the user equipment or terminals. Examples of this approach are dis ⁇
  • PS packet switched
  • PS packet switched
  • VoIP Voice over IP
  • the calls are typically long but the voice activity is low, it is essential to release the bearer (e.g. radio channels) while no one is talking in order to save the ra ⁇
  • bearer e.g. radio channels
  • An object of the invention is to provide a method for controlling access bearer
  • an access network assigns
  • the user equipment can be kept in a connected mode (the
  • the user equipment is shifted to the dedicated channel state (e.g.
  • the dedicated channel is released and the user equipment is
  • the radio base station radio or transmission
  • channel state may take a few hundred milliseconds, which is expected to be fast
  • RRC radio resource control
  • the PoC requires a real-time
  • Figure 1 illustrates a communication system having a radio access network
  • RAN CS and PS core networks
  • PoC server a PoC server
  • Figure 2 illustrates various states of user equipment UE
  • Figure 3 is a block diagram illustrating basic blocks of user equipment accord ⁇
  • Figure 4 is a signaling diagram illustrating an example of service establish ⁇
  • Figure 5 is a signaling diagram illustrating an example of an initial state tran ⁇
  • Figure 6 is a signaling diagram illustrating an example of a state transition
  • Figure 7 is a signaling diagram illustrating an example of a state transition
  • the present invention is applicable to communications systems enabling real ⁇
  • Real-time data may include real-time audio
  • the present invention is especially applicable to a communications system
  • the present invention provides a significant improvement for packet-mode
  • VoIP Voice over Internet Protocol
  • the IP is a munication over an IP connection.
  • the IP is a munication over an IP connection.
  • VoIP Voice over IP
  • VoIP Voice over IP
  • PS Packed core network in order to provide packet mode (e.g. IP) voice, data
  • UE User Equipment
  • the PS CN and the PS core network itself, utilize the services provided by a Radio
  • RAN access network
  • the RAN may be Time Division Multiple Access (TDMA), Frequency Division Mul ⁇
  • FDMA tiple Access
  • CDMA Code Division Multiple Access
  • the method is primarily based on the CDMA. Further, because the traffic channels may
  • CCDMA Wideband CDMA
  • system may be embodied as a server system, and it is generally referred to as a media
  • the media communication server may comprise con ⁇
  • the communication includes signaling packets and voice or data communication packets.
  • the CPF function is responsible for control-plane management of the group commu ⁇
  • This may include, for example, managing the user activity and creation and
  • SIP Session Initiation Protocol
  • UPF User Plane function
  • the UPF forwards traffic only between valid
  • VoIP voice over IP
  • RTP Real-time Transport Protocol
  • the User equipment UE may be a wireless device, such as mobile user
  • the user equipment UE such as a Mobile Sta ⁇
  • tion MS may have a PoC application on a user layer on top of the standard protocol
  • SIP Session Initiation Protocol
  • the voice communication may be based on IP communica ⁇
  • tion such as voice over IP, VoIP
  • RTP Real-time Transport Protocol, defined in RFC1889
  • VoIP voice packet
  • the SIP and RTP protocols employ the underlying Transmission Control Pro ⁇
  • TCP Transmission tocol
  • UDP User Datagram Protocol
  • IP protocols that further employ the
  • the underlying physical layer resources such as the radio resources.
  • the radio resources such as the radio resources.
  • connection in a mobile communication network may be based on a GPRS connection.
  • An RF part 304 represents any radio
  • band signal processing 309 represents any baseband signal processing required in any
  • a controller 305 controls the operation of the RF unit 304 and the baseband sig ⁇
  • the controller 305 controls the signaling, both outband (SIP)
  • VAD voice activity detector
  • a user interface may include a display 307 and a keyboard 308. It should be appreci ⁇
  • the baseband processing and the controller may be implemented in a single programmable unit (e.g.
  • present invention is primarily related to the controller part of the MS, and the basic
  • the terminal can be
  • any terminal having a speech communication capability For example, the user termi ⁇
  • nal may be a terminal (such as a personal computer PC) having Internet access and a
  • the controller 305 comprises a media commu ⁇
  • nication client application 301 e.g. PoC client.
  • application 301 e.g. PoC client
  • PoC client provides the respective communication service.
  • the client application 301 may
  • group information such as group identification information and group mem ⁇
  • the communication client 301 may also provide tools for group
  • the UE a performs a
  • GPRS attach procedure and b) establishes a PDP context (i.e. a bearer) used for SIP
  • This PDP context remains active throughout the period the UE is connected
  • the PDP context provides the UE with information that makes the UE capable
  • the UE estab- lishes data stream(s) for media related to the session. Such a data stream(s) may result
  • endpoints may be addressable by multiple names, and they may com ⁇
  • sent invention is not restricted to PoC services but can be applied to media flow man ⁇
  • multimedia session data such as voice, video, or text messages.
  • the Session Initia ⁇ is a multimedia session data, such as voice, video, or text messages.
  • tion Protocol (SIP, RFC 3261) is a general-purpose tool for creating, modifying, and
  • SIP can be used with
  • RTP Real-time Transport Protocol
  • RTP streaming protocol
  • MEGACO Media Gateway Control Protocol
  • PSTN Public Switched Telephone Network
  • Session Description Protocol a Session Description Protocol
  • VoIP or PoC are only examples of real-time me ⁇
  • sent invention primarily relates to controlling access bearers on the access network
  • radio access bearers in the RAN e.g. radio access bearers in the RAN.
  • the user equipment may adopt various aspects
  • Figure 2 summarizes the mapping of UE states, including states in
  • GSM Global System for Mobile communications
  • CELL_DCH nected, CELL_DCH, and CELL_FACH are of interest in the following exemplary
  • the UE After being switched on, the UE stays in Idle Mode until it transmits a request
  • tion of the UE is closed on all layers of the access stratum.
  • Idle Mode the UE is
  • non-access stratum identities such as an International mobile subscriber
  • IMSI Temporary mobile subscriber identity
  • TMSI Temporary mobile subscriber identity
  • P-TMSI Packet TMSI
  • the RAN has no information of its own about the individual Idle Mode UEs, and it can only address e.g. all UEs in a cell or all UEs monitoring a pag ⁇
  • the UE is assigned a radio network temporary identity (RNTI) to be used as a
  • Mode from the Idle Mode can only be initiated by the UE by transmitting a request for
  • the UE enters the CELL_FACH or CELL_DCH state of
  • RRC Connected Mode The RRC states within RRC Connected Mode reflect the
  • the location of the UE being known on a cell level ac ⁇
  • transport channels and a combination of these transport channels may be used by the UE.
  • CELLJFACH state A transition to CELLJFACH state occurs when all dedicated
  • Radio Bearer Release Radio Bearer Setup, Transport Channel Reconfiguration, etc.
  • the RAN may know the position of the UE on a cell level, i.e. according to the cell where the UE last
  • a transition from CELL_FACH to CELL_DCH state occurs when a dedicated
  • Push-to-talk over Cellular is a speech service in a mobile network
  • VoIP Voice over IP
  • Figure 4 shows a signaling diagram illustrating an example of establishing a
  • real-time media service e.g. a streaming signal, PoC, etc.
  • packet switched media service e.g. a streaming signal, PoC, etc.
  • PS-CN core network
  • a mobile station (MS) or user equipment (UE) is in Idle Mode and
  • RRC Radio Resource Control
  • RNC radio network controller
  • the RNC commands a serving BTS to set up a
  • the RNC then orders the UE from the Idle Mode to CELLJDCH state in
  • the RNC may order the UE to the cell_FACH state, in which case a radio
  • the UE Upon receiving the RRC CONNECTION SETUP, the UE performs a physical
  • Layer LI layer synchronisation procedure
  • the RNC may send a MEASURE ⁇
  • the UE may then send an RRC INITIAL DIRECT TRANSFER message in
  • the RNC routes a Non Access Stratum (NAS) message to the RNC.
  • NAS Non Access Stratum
  • Signaling occurs, for example, during the establishment of a
  • the PS-CN may then send a RANAP
  • the PS-CN may then send a RANAP SECURITY MODE COM- MAND to the RNC to trigger the integrity and ciphering functions over the radio in ⁇
  • the RNC may then send an RRC SECURITY MODE COMMAND message
  • RRC SECURITY MODE COMPLETE message is sent by the UE to confirm the re ⁇
  • the RNC then sends an
  • a real-time media session e.g. the PoC service.
  • a real-time media session e.g. the PoC service.
  • DCH Dedicated Channel
  • the terminals release the DCHs and move back to a common
  • a state transition from a common channel state to cell DCH state takes a few hundred milliseconds, which is to be fast enough for smooth operation of the
  • the problem is that the RNC may not know which Radio
  • RAB Access Bearer
  • PoC requires a real-time connection having the characteristics
  • a core network is extended so that a core network can recognize a packet connection (e.g.
  • a real-time access bearer e.g. a real-time access bearer
  • radio access bearer RAB which can be shifted to common channel states during voice inactivity.
  • RAB radio access bearer
  • bearers e.g. RABs
  • RABs Radio Bearers
  • the core network to the access network (e.g. the RAN).
  • RABs real-time access bearers
  • parameter may indicate that the type of the RAB is conversational, streaming, etc.
  • the indication according to the invention may be made in the Source Statistics
  • One or more new IE types may be defined for this parameter, indicating
  • radio acces bearer is of an always-on speech call, e.g. PoC.
  • the new types are of an always-on speech call, e.g. PoC.
  • RAB according to the invention can be distinguished from the normal types named
  • the current delay parameters could be used to show
  • a GTP (GPRS Tunnelling Protocol) tunnel setup may occur between the RNC
  • the RNC may not allocate a DCH for the RAB but only the radio
  • the RNC sends a RADIO BEARER SETUP message to
  • the RNC sends an RAB ASSIGNMENT RESPONSE message to the PS-
  • the RNC may send a MEASUREMENT CONTROL message to specify traf ⁇
  • Quantities that the UE may be configured to report can be triggered using two
  • the measurement control message may include one or more of Buffer Occupancy,
  • the UE performs
  • the UE reports the observed traffic
  • This report contains e.g. the amount of data to be transmitted or the buffer
  • the UE is now in the CELLJDCH state.
  • the signaling radio bearer (SRB) has
  • the traffic volume or the buffer status depends on the activity of higher layer
  • VAD voice activity detector
  • the speech codec does not provide any
  • DTX tinuous transmission
  • RNC detects on the basis of traffic volume control, and/or by some other means (e.g.
  • the UE is shifted to a common channel state, typically first to the CELL_FACH state and further to the CELL_PCH state.
  • RNC commands the UE to the CELL_FACH state with the RADIO BEARER RE ⁇
  • the UE shifts to the CELLJFACH state and acknowl ⁇
  • the initial situation may be similar to that at the bottom of
  • the tangent button activates a speech
  • the RLC buffer in the UE Because the UE is in a common channel state
  • the RNC may detect a capacity need in the downlink direction and activate the transi ⁇
  • the RNC allocates the required capacity (including a
  • DCH for the real-time RAB detects a need to change the RLC parameters, carries out
  • the transmission is started from the UE (called subscriber A herein) to ⁇
  • subscriber B wards the recipient(s) (called subscriber B herein).
  • the data from subscriber A first arrives at the subscriber B's RLC
  • sitions may take approximately 1 to 2 seconds, subscriber A's terminal may, in an
  • an indication (such as a beep tone) a couple of sec ⁇
  • the semiduplex operation would refer to allocating unidirectional resources
  • duplex resources are not allocated, an allocation delay and possibility of lacking
  • the total time needed is the total time needed
  • the initial situation may be similar to that at the
  • the speech codec may stop providing
  • the RNC Upon detecting the inactivity in both directions, the RNC shifts both terminals
  • UE to a common channel state, typically first to CELLJFACH state and further to
  • the input for the decision making in the RNC can be e.g. to meas ⁇
  • the RNC is provided with the transition
  • timer(s) controlling the transition from CELLJDCH to a common channel state.
  • timer(s) in the RNC is/are set to be long enough to prevent too frequent state transi ⁇
  • the RNC observes that the RLC parameters have to be changed, and com ⁇
  • the UE mands the UE to the CELL FACH state with an RADIO BEARER RECONFIGU- RATION message.
  • the UE moves to the CELL_FACH state and acknowledges with
  • cedure may be carried out before the transition.
  • the RNC releases the radio resources
  • time service e.g. a PoC service
  • connection to RAN may still take several seconds, also this method is too slow for the

Abstract

Un réseau d'accès radio (RNC) attribue pour une session multimédia en temps réel, un support d'accès en temps réel qui peut être commuté sélectivement entre un état voie spécialisée et un état voie commune. Cette attribution est effectuée en réponse à la réception d'un message d'attribution de support d'accès, indiquant que la session multimédia en temps réel nécessite un support d'accès du type mentionné. L'activité multimédia du support d'accès en temps réel est ensuite surveillée, et le support d'accès est commuté vers l'état voie commune lorsqu'une inactivité multimédia est détecté au cours de l'état voie spécialisé, et vers l'état voie spécialisée lorsqu'une activité multimédia est détectée au cours de l'état voie commune.
PCT/FI2004/000801 2003-12-29 2004-12-27 Procede et systeme permettant de commander le support d'acces dans un service de donnees en temps reel WO2005064977A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04805196A EP1702487A1 (fr) 2003-12-29 2004-12-27 Procede et systeme permettant de commander le support d'acces dans un service de donnees en temps reel

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FI20031911 2003-12-29
FI20031911A FI20031911A0 (fi) 2003-12-29 2003-12-29 Menetelmä ja järjestelmä access-verkkopalvelun kontrolloimiseksi reaaliaikaisessa datapalvelussa
US10/827,681 2004-04-20
US10/827,681 US7539160B2 (en) 2003-12-29 2004-04-20 Method and system for controlling access bearer in a real-time data service

Publications (1)

Publication Number Publication Date
WO2005064977A1 true WO2005064977A1 (fr) 2005-07-14

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Country Link
EP (1) EP1702487A1 (fr)
WO (1) WO2005064977A1 (fr)

Cited By (7)

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DE102005011177A1 (de) * 2005-03-09 2006-09-14 Vodafone Holding Gmbh Verfahren und System zum Optimieren der Kapazität eines Mobilfunknetzes
DE102006004250A1 (de) * 2006-01-30 2007-08-09 Infineon Technologies Ag Kommunikationseinrichtung, Verfahren zum Betreiben einer Kommunkationseinrichtung und Computerprogrammelement
EP2056538A1 (fr) * 2006-11-02 2009-05-06 Huawei Technologies Co., Ltd. Procédé et dispositif de transmission/réception de canal associé à un réseau d'accès de paquets de liaison descendante haut débit
WO2011124261A1 (fr) * 2010-04-08 2011-10-13 Nokia Siemens Networks Oy Procédé destiné à transmettre des données dans un réseau de communication
CN102264002A (zh) * 2011-07-14 2011-11-30 中山爱科数字家庭产业孵化基地有限公司 一种数字家庭互动业务网络适配器及实现方法
WO2018054218A1 (fr) * 2016-09-20 2018-03-29 中兴通讯股份有限公司 Procédé et dispositif d'activation d'un mode de sécurité
CN111567015A (zh) * 2018-01-12 2020-08-21 Oppo广东移动通信有限公司 一种数据传输方法及装置、计算机存储介质

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EP1398988A1 (fr) * 2002-09-13 2004-03-17 Samsung Electronics Co., Ltd. Procédé pour fournir des services de données intéractifs dans un système de communication mobile

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US20030012217A1 (en) * 1999-10-29 2003-01-16 Christoffer Andersson Channel-type switching to a common channel based on common channel load
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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005011177A1 (de) * 2005-03-09 2006-09-14 Vodafone Holding Gmbh Verfahren und System zum Optimieren der Kapazität eines Mobilfunknetzes
DE102006004250A1 (de) * 2006-01-30 2007-08-09 Infineon Technologies Ag Kommunikationseinrichtung, Verfahren zum Betreiben einer Kommunkationseinrichtung und Computerprogrammelement
DE102006004250B4 (de) * 2006-01-30 2008-04-24 Infineon Technologies Ag Kommunikationseinrichtung, Verfahren zum Betreiben einer Kommunkationseinrichtung und Computerprogrammelement
US9363792B2 (en) 2006-01-30 2016-06-07 Intel Deutschland Gmbh Apparatus method and computer program element for efficient control and supervision of the activity of a communication device
EP2056538A1 (fr) * 2006-11-02 2009-05-06 Huawei Technologies Co., Ltd. Procédé et dispositif de transmission/réception de canal associé à un réseau d'accès de paquets de liaison descendante haut débit
EP2056538A4 (fr) * 2006-11-02 2010-03-24 Huawei Tech Co Ltd Procédé et dispositif de transmission/réception de canal associé à un réseau d'accès de paquets de liaison descendante haut débit
KR101473779B1 (ko) * 2010-04-08 2014-12-17 노키아 솔루션스 앤드 네트웍스 오와이 통신 네트워크에서 데이터를 전송하기 위한 방법
US20130107834A1 (en) * 2010-04-08 2013-05-02 Nokia Siemens Networks Method for Transmitting Data in a Communications Network
WO2011124261A1 (fr) * 2010-04-08 2011-10-13 Nokia Siemens Networks Oy Procédé destiné à transmettre des données dans un réseau de communication
CN102264002B (zh) * 2011-07-14 2013-06-05 中山爱科数字家庭产业孵化基地有限公司 一种数字家庭互动业务网络适配器及实现方法
CN102264002A (zh) * 2011-07-14 2011-11-30 中山爱科数字家庭产业孵化基地有限公司 一种数字家庭互动业务网络适配器及实现方法
WO2018054218A1 (fr) * 2016-09-20 2018-03-29 中兴通讯股份有限公司 Procédé et dispositif d'activation d'un mode de sécurité
CN111567015A (zh) * 2018-01-12 2020-08-21 Oppo广东移动通信有限公司 一种数据传输方法及装置、计算机存储介质
CN111567015B (zh) * 2018-01-12 2023-06-20 Oppo广东移动通信有限公司 一种数据传输方法及装置、计算机存储介质

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