WO2006029548A1 - Procede de realisation de transfert entre combine bluetooth et passerelle bluetooth - Google Patents

Procede de realisation de transfert entre combine bluetooth et passerelle bluetooth Download PDF

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Publication number
WO2006029548A1
WO2006029548A1 PCT/CN2004/001043 CN2004001043W WO2006029548A1 WO 2006029548 A1 WO2006029548 A1 WO 2006029548A1 CN 2004001043 W CN2004001043 W CN 2004001043W WO 2006029548 A1 WO2006029548 A1 WO 2006029548A1
Authority
WO
WIPO (PCT)
Prior art keywords
bluetooth
gateway
mobile phone
bluetooth gateway
handset
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2004/001043
Other languages
English (en)
Chinese (zh)
Inventor
Yunbo An
Zhijian Zhou
Yongping Zeng
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IVT SOFTWARE Tech Inc
IVT Corp
Original Assignee
IVT SOFTWARE Tech Inc
IVT Corp
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 IVT SOFTWARE Tech Inc, IVT Corp filed Critical IVT SOFTWARE Tech Inc
Priority to PCT/CN2004/001043 priority Critical patent/WO2006029548A1/fr
Publication of WO2006029548A1 publication Critical patent/WO2006029548A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/12—Reselecting a serving backbone network switching or routing node
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/302—Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength
    • 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
    • H04W84/00—Network topologies
    • H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/16—Gateway arrangements

Definitions

  • the present invention relates to the field of Bluetooth communication technology and IP telephony, and in particular to a method of call processing. Background technique
  • SIP Session Initiation Protocol
  • IETF Internet Engineering Task Force
  • Name translation and user location Ensure that the call reaches the called party, regardless of where the callee is.
  • a participant in a call can introduce other users to join the call or cancel the connection to other users.
  • users can be transferred or placed for call hold.
  • Bluetooth Short-range wireless communication technology
  • ISM Industrial-Science-Medical
  • the basic network structure of Bluetooth is a piconet consisting of one master device and up to seven slave devices.
  • the master device and the slave devices use time division multiple access (TDMA) to communicate.
  • TDMA time division multiple access
  • SIG Special Interest Group
  • Cordless Phone Profile it proposes a Bluetooth-based cordless phone.
  • a cordless telephone base station (hereinafter referred to as a Bluetooth gateway) as a master device and a cordless telephone handset (hereinafter referred to as a terminal) as a slave device are equipped with a Bluetooth wireless transceiver module, using Bluetooth for voice and control signals The transmission of the order.
  • a cordless telephone landline (Bluetooth gateway) is connected to a fixed network, and a Bluetooth gateway can connect up to seven terminals.
  • this cordless phone handset (Terminal) At the same time, it can be a cellular phone (hereinafter, the cellular phone with the function of the Bluetooth cordless phone is a Bluetooth phone).
  • the above solution largely solves the problem of the use of the fixed telephone and the cellular telephone, and thus has a good application prospect.
  • the Bluetooth mobile phone when the Bluetooth mobile phone is in the coverage of the Bluetooth gateway, the telephone can be called and received through the IP network, thereby saving the call charge.
  • the SIG does not give a way for Bluetooth phones to switch between Bluetooth gateways. When a Bluetooth mobile phone in a call state moves from one Bluetooth gateway to another, it is impossible to avoid a call interruption.
  • the present invention provides a method for implementing a Bluetooth mobile phone to switch between Bluetooth gateways.
  • the method is implemented in the network configuration environment of the present invention, wherein: a SIP registration server is connected to the local area network to provide a standard SIP registration server function.
  • the IP/PBX gateway is connected to the Internet and the PSTN network, and the Bluetooth mobile phone can communicate with the phone on the PSTN and the phone on the Internet.
  • the management server is responsible for Bluetooth device management and switch management. Multiple Bluetooth gateways are connected to the local area network (LAN), which form a piconet with the Bluetooth handsets within its coverage.
  • LAN local area network
  • the method of the present invention includes the following steps:
  • the first Bluetooth gateway detects the signal quality of the Bluetooth handset that is making a call through it; b) when the first Bluetooth gateway finds that the detected Bluetooth mobile phone signal quality is below a certain value, sends a handover request to the management server;
  • the management server makes a handover decision according to the signal quality of the Bluetooth mobile phone detected by the other Bluetooth gateways near the first Bluetooth gateway, and selects the second Bluetooth gateway from the other Bluetooth gateways as the Bluetooth to be switched to Gateway
  • the second Bluetooth gateway establishes a Bluetooth connection with the Bluetooth mobile phone
  • the second Bluetooth gateway establishes a Bluetooth call link with the Bluetooth handset.
  • FIG. 1 is a system block diagram of a Bluetooth cordless telephone device (Bluetooth gateway or terminal);
  • FIG. 2 is a schematic diagram for explaining a network configuration of a Bluetooth cordless telephone device
  • FIG. 3 is a flow chart for explaining switching between different Bluetooth gateways during a Bluetooth mobile phone call according to the present invention
  • FIG. 4 is a flow chart for explaining related actions when a Bluetooth mobile phone joins a piconet where a Bluetooth gateway is located, according to the present invention
  • FIG. 5 is a flow chart for explaining the related actions when a Bluetooth mobile phone leaves the piconet where the Bluetooth gateway is located, in accordance with the present invention. detailed description
  • FIG 1 is a system block diagram of a Bluetooth cordless telephone device (Bluetooth gateway or terminal).
  • the Bluetooth cordless telephone device 100 is comprised of several functional modules.
  • the Bluetooth cordless telephone application 110 provides various functions of the cordless telephone to the user, and the required voice is provided by the baseband controller 150; the required control information is determined by the SDP (Service Discovery Protocol) 170 and the TCS (Telephone Control Protocol) 120. provide.
  • the standard communication protocol L2CAP (Logical Link Control and Adaptation Protocol) 130 multiplexes various protocols of the upper layer.
  • the HCI Host Control Interface
  • Driver 175 allows the transmission of standard HCI commands and receives the resulting response; and receives and transmits data through the L2CAP 130.
  • the HCI transport layer 180 is optional.
  • the HCI transport layer is responsible for information transfer between the modules, and the physical transport type may be RS232. , USB, UART, PCI or PCMCIA;
  • the information transfer uses shared memory, parameter transfer, message, etc., and the transport layer is no longer needed.
  • the link manager 180 is responsible for receiving commands and data sent by the upper module and returning the result to the upper layer.
  • the link manager 180 performs the corresponding functions through the baseband controller 150 and the radio transceiver 160.
  • Link Management Protocol 140 Used for mutual communication between different Bluetooth device link managers.
  • the baseband controller 150 operates in accordance with the commands of the link manager 180.
  • the wireless transceiver 160 wirelessly transmits and receives information in accordance with standard specifications.
  • the SIP registration server 205 is connected to the local area network to provide the functionality of a standard SIP registration server.
  • Bluetooth phone can The call is made through the IP/PBX gateway 210 and the phone on the PSTN and the phone on the Internet.
  • the management server 215 is responsible for Bluetooth device management and handover management.
  • the Bluetooth gateways 220, 235 and 250 and the Bluetooth handsets 225, 230, 240, 245 within their coverage form a piconet.
  • the Bluetooth mobile phone 225, 230 and the Bluetooth gateway 220 form a first piconet
  • the Bluetooth mobile phone 240 and the Bluetooth gateway 235 form a second piconet
  • the Bluetooth mobile phone 245 and the Bluetooth gateway 250 form a third piconet.
  • Mobile phones that are within the coverage of the Bluetooth gateway can talk to each other or to the outside world via IP/PBX.
  • FIG 3 is a flow chart for explaining the switching of Bluetooth handsets between different Bluetooth gateways during a call in accordance with the present invention.
  • the Bluetooth gateway periodically (e.g., 10 minutes) looks up other Bluetooth gateways around and reports this information to the management server. The purpose of this step is to let the management server know the distribution of each Bluetooth gateway and know which other Bluetooth gateways are around a Bluetooth gateway.
  • the Bluetooth mobile phone is talking through the first Bluetooth gateway, and the first Bluetooth gateway detects the signal quality of the Bluetooth mobile phone (S305).
  • the Bluetooth mobile phone moves to the second Bluetooth gateway.
  • the first Bluetooth gateway detects that the Bluetooth mobile phone signal quality is lower than a certain value, and issues a handover request to the management server (S310).
  • the management server knows that the second Bluetooth gateway and the third Bluetooth gateway are near the first Bluetooth gateway according to the message in the handover request of the first Bluetooth gateway. It notifies the second Bluetooth gateway and the third Bluetooth gateway to detect the signal quality of the Bluetooth handset.
  • the three Bluetooth gateways periodically (e.g., 1 second) detect the signal quality of the Bluetooth handset and report it to the management server. Based on the received data, the management server makes a decision as to when to switch to (S315). In this example, the management server decides to switch the Bluetooth handset to the second Bluetooth gateway. The management server notifies the three Bluetooth gateways of the handover decision. All three Bluetooth gateways stop periodic signal quality detection.
  • the second Bluetooth gateway establishes a Bluetooth connection (S320) with the Bluetooth mobile phone, and the Bluetooth mobile phone joins the second Bluetooth gateway.
  • the call is transferred from the first Bluetooth gateway to the second Bluetooth gateway (S325) using the call forwarding function of SIP.
  • the second Bluetooth gateway registers with the SIP registration server and notifies the management server.
  • the management server notifies the Bluetooth gateway of the success of the Bluetooth mobile phone joining the second Bluetooth gateway.
  • the first Bluetooth gateway utilizes the SIP call forwarding function to transfer the call to the second Bluetooth gateway.
  • the first Bluetooth gateway receives the message that the calling party agrees to the call transfer (in the SIP signaling, it is SIP OK), the Bluetooth mobile phone is notified to switch, and the call with the Bluetooth mobile phone is disconnected.
  • the Bluetooth mobile phone disconnects from the Bluetooth connection of the first Bluetooth gateway.
  • the first Bluetooth gateway cancels the registration of the Bluetooth mobile phone to the SIP registration server.
  • Second Bluetooth network After the call forwarding message of the first Bluetooth gateway is received (in the SIP, it is INVITE), a Bluetooth call link is established with the Bluetooth mobile phone (S330).
  • the process of establishing a Bluetooth call link includes: initiating a call request to a Bluetooth mobile phone; the Bluetooth mobile phone accepts the call, and establishes a Bluetooth voice channel, that is, an SCO connection.
  • the second Bluetooth gateway establishes a voice channel (RTP connection) with the calling party, and the handover is completed.
  • RTP connection voice channel
  • FIG. 4 is a flow chart for explaining the related actions when a Bluetooth mobile phone joins the piconet where the Bluetooth gateway is located, in accordance with the present invention.
  • the Bluetooth mobile phone sends a message to the Bluetooth gateway requesting to join the piconet where the Bluetooth gateway is located (S410)
  • the Bluetooth gateway agrees to establish a connection with the Bluetooth mobile phone (S420) and adds the Bluetooth mobile phone to the terminal list (S430), and simultaneously registers with the SIP service.
  • the device registers the identifier of the Bluetooth mobile phone, and the identifier may be a Bluetooth address of the Bluetooth mobile phone, or may be an identifier assigned to the Bluetooth mobile phone by other means.
  • FIG. 5 is a flow chart for explaining the related actions of the present invention when a Bluetooth mobile phone leaves the piconet where the Bluetooth gateway is located.
  • the Bluetooth gateway monitors the extent to which a Bluetooth mobile phone is about to leave the piconet with the Bluetooth gateway as the master device (S510).
  • the Bluetooth gateway finds any of the following facts, it considers that the Bluetooth mobile phone has left the piconet where the Bluetooth gateway is located: 1) The Bluetooth gateway reads the Bluetooth gateway and the designated Bluetooth mobile phone using the HCI command "Read-RSSI" defined in the Bluetooth standard.
  • the signal strength indicator (RSSI) value of the Bluetooth link when the value indicates that the signal quality is below the specified threshold; 2) the Bluetooth gateway uses the standard HCI command "Get-Link-Quality" to get a 1-byte value link Quality information, this value indicates that the link quality is below the specified threshold; 3) The Bluetooth gateway determines that the HCI event occurred when there is a broken link event with the specified Bluetooth handset. After detecting the above facts, the Bluetooth gateway deregisters with the SIP registration server (S520).

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

Abstract

L'invention concerne un procédé de réalisation de transfert entre combiné Bluetooth et passerelle Bluetooth : détection par la passerelle Bluetooth de la qualité du signal du combiné Bluetooth communiquant via cette passerelle ; au-dessous d'un certain seuil de qualité, la passerelle adresse une demande de transfert au serveur de gestion ; celui-ci prend la décision d'un transfert selon la qualité de signal détectée par une autre passerelle Bluetooth voisine ; le combiné établit une connexion Bluetooth avec la nouvelle passerelle Bluetooth ; la première passerelle Bluetooth transfère l'appel à la nouvelle passerelle via la fonction de réacheminemenent d'appel du protocole de lancement de session (SIP) ; la nouvelle passerelle établit une liaison d'appel Bluetooth avec le combiné. Le transfert est alors bouclé. Dans ces conditions, on peut réaliser le transfert pour combiné Bluetooth entre différentes passerelles Bluetooth durant la période de communication respective.
PCT/CN2004/001043 2004-09-13 2004-09-13 Procede de realisation de transfert entre combine bluetooth et passerelle bluetooth Ceased WO2006029548A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2004/001043 WO2006029548A1 (fr) 2004-09-13 2004-09-13 Procede de realisation de transfert entre combine bluetooth et passerelle bluetooth

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2004/001043 WO2006029548A1 (fr) 2004-09-13 2004-09-13 Procede de realisation de transfert entre combine bluetooth et passerelle bluetooth

Publications (1)

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WO2006029548A1 true WO2006029548A1 (fr) 2006-03-23

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024103888A1 (fr) * 2022-11-16 2024-05-23 荣耀终端有限公司 Procédé et système de traitement de données, dispositif électronique, périphérique bluetooth et support de stockage

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002079796A1 (fr) * 2001-03-28 2002-10-10 Norwood Systems Pty Ltd Reseau de communications sans fil
WO2003015315A1 (fr) * 2001-08-09 2003-02-20 Initium Co., Ltd. Systeme support d'un mecanisme de transfert/itinerance dans un reseau sans fil a courte distance utilisant bluetooth
WO2004046853A2 (fr) * 2002-11-15 2004-06-03 Motorola, Inc. Appareil et procede de transfert de mobile/ip entre plusieurs technologies d'acces

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002079796A1 (fr) * 2001-03-28 2002-10-10 Norwood Systems Pty Ltd Reseau de communications sans fil
WO2003015315A1 (fr) * 2001-08-09 2003-02-20 Initium Co., Ltd. Systeme support d'un mecanisme de transfert/itinerance dans un reseau sans fil a courte distance utilisant bluetooth
WO2004046853A2 (fr) * 2002-11-15 2004-06-03 Motorola, Inc. Appareil et procede de transfert de mobile/ip entre plusieurs technologies d'acces

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024103888A1 (fr) * 2022-11-16 2024-05-23 荣耀终端有限公司 Procédé et système de traitement de données, dispositif électronique, périphérique bluetooth et support de stockage

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