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36 results about "Dual Transfer Mode" patented technology

Dual Transfer Mode (DTM) is a protocol based on the GSM standard that makes simultaneous transfer of Circuit switched (CS) voice and Packet switched (PS) data over the same radio channel (ARFCN) simpler. Without DTM, the mobile device must be capable of reception and transmission simultaneously (full-duplex) requiring complex and expensive circuitry in the mobile terminal. With DTM this requirement doesn't exist and makes the device implementation simpler and cheaper. DTM is a 3GPP feature introduced in R4 of the specification series.

System, apparatus, computer program product and method for controlling terminal output power

Controlling the output power level of a dual transfer mode (DTM) capable terminal involves generating a network message. The network message may be a circuit-switched (CS) handover command and / or a point-to-point signaling message. A maximum output power level value is associated with the network message. The network message is transferred from the network to the terminal. A packet-switched (PS) output power level of the terminal is determined using the maximum output power level value received via the network message.
Owner:CORE WIRELESS LICENSING R L

Method to handover dedicated and shared resources while in dual transfer mode

A method for the handover of dedicated as well as shared resources for a communication device. The communication device simultaneously uses circuit switched and packet switched bearer services of a communication network according to a certain connection mode. The method comprises performing a handover procedure, wherein a change from old resources used by the communication device to new resources to be used by the communication device is effected simultaneously for dedicated as well as shared resources.
Owner:NOKIA TECHNOLOGLES OY

Method of performing handover for a dual transfer mode in a wireless mobile communication system

A method of performing Dual Transfer Mode (DTM) handover by a mobile station (MS) in a wireless mobile communication system is disclosed. More specifically, the MS receives information of neighbor cells, wherein the information is a list of neighbor cells whose signal strengths the MS should measure and transmits a message including results of the measured neighbor cells. Furthermore, the MS receives a message from a network, wherein the message is a DTM Handover Command message which instructs the MS to perform a DTM handover procedure with one of the neighbor cells. Lastly, the MS performs the DTM handover procedure.
Owner:LG ELECTRONICS INC

Single radio voice call continuity (sr-vcc)

The present invention discloses a node (207, 217) for achieving co-existence of single radio voice call continuity, SR-VCC, solutions in a communication system between a source cell of a first radio access network that supports packet switched voice and a target cell of a second radio access network that supports at least circuit switched voice. The node (207, 217) is operable to perform bearer splitting by separating voice bearers from non-voice bearers based on information about support for dual transfer mode, packet switched handovers and voice over internet protocol related enhancements in the target cell.
Owner:APPLE INC

Enhanced handling of system information messages when moving from dual transfer mode to packet transfer mode

A method and terminal are disclosed for use in a wireless communication system, in order for the terminal to transition from a dual mode, in which a packet switched connection and circuit switched connection are used, to a single mode in which packets are transferred. The mobile terminal is for receiving minimum system information necessary to perform this transition in an uninterrupted manner. This system information is sent to the mobile terminal automatically or on a regular basis, and is additionally sent to the mobile terminal partly upon request of the mobile terminal. A release indication is sent to the terminal separately from the system information, notifying the terminal that the circuit switched connection will be released, at which point a timer is started. The system information is employed by the mobile terminal to transition from the dual mode in the uninterrupted manner, if the timer has not expired.
Owner:NOKIA TECHNOLOGLES OY

Enhancement of packet transfer mode when circuit switched resources are requested

A mobile terminal and method are disclosed for use in a wireless communication system in order for the mobile terminal to be able to transition to a dual mode, in which a packet switched connection and circuit switched connection are used together, from a single mode in which packets are transferred. A packet associated control channel is used to convey a radio link control or multiple access control (RLC / MAC) message, and meanwhile packet switched resources are maintained. Then a dual transfer mode assignment message is received, as a result of using the packet associated channel to convey the radio link or multiple access control message.
Owner:NOKIA TECHNOLOGLES OY

Transferring data in a dual transfer mode between a mobile network and mobile stations

InactiveUS20100061295A1Speed up the PS signalling procedureLimited resource can be allocatedConnection managementRadio transmissionTransmission protocolPacket switched
A circuit mobility management entity (CMM) is intended a mobile network adapted for transferring data in a dual transfer mode to and from mobile stations. The CMM is arranged, when it has established a circuit-switched (CS) connection between a mobile station and the mobile network and when it receives from a radio resource entity (RR) of the mobile network, a message informing that the CS procedure corresponding to this CS connection is ended, to determine if a GPRS Tunnelling Transport Protocol (GTTP) procedure is running for a packet-switched (PS) signalling procedure which concerns the mobile station, then either i) require release of the CS connection near the RR entity if the GTTP procedure is ended, or ii) maintain the CS connection as long as the GTTP procedure is running, and require release of the CS connection near the RR entity when the GTTP procedure is ended.
Owner:ST ERICSSON SA

Mobile device, system and method for enhanced channel allocation when radio resource connection is released while in dual transfer mode

A mobile device, system, and method are disclosed for use in a wireless communication system during the mobile device's transition from a dual mode, in which a packet switched connection and circuit switched connection are used together, to a single mode in which packets are transferred. When the circuit switched connection is released, packet resources are allocated by converting timeslots used for circuit switched connection traffic into timeslots used for packet data traffic. Also included is a new alert signal within an existing message to the mobile device during the circuit switched connection release phase, before completion of the circuit switched connection release phase, in order to inform the mobile device that the converting step will occur after release of the circuit switched connection.
Owner:CORE WIRELESS LICENSING R L

Method and system of enhanced dual transfer mode using mobility management

A method, system, and mobile station are presented for informing a packet control unit (PCU) whether the dual transfer mode (DTM) capable mobile station has an ongoing circuit switched connection and is in dedicated mode. The packet control unit will typically be located at a base station. Upon entering the dedicated mode, the mobile station alerts the PCU of entry into the dedicated mode, using a mobility management (MM) procedure. This mobility management procedure is utilized for alerting the PCU about the dedicated mode, regardless of physical movement of the mobile station such as movement from one cell to another.
Owner:NOKIA TECHNOLOGLES OY

System, device and method for communication control in dual transfer mode

A system, device and method for communication control in a dual transfer mode are disclosed. The method includes performing a voice call by a portable terminal, based on a dual transfer mode, requesting to download data from a server by the portable terminal, determining whether voice information exists to be transmitted to the portable terminal, allocating data intended to be transmitted to the portable terminal, to time slots previously allocated to transfer voice information, if voice information does not exist, and transmitting the allocated data to the portable terminal.
Owner:SAMSUNG ELECTRONICS CO LTD

Method and device for suspending packet data service

The invention discloses a method for suspending a packet data service, which comprises the following steps of: receiving a user equipment context release request message sent by an evolution base station, wherein the user equipment context release request message comprises a redirection circuit domain service backspacing indication; according to the redirection circuit domain service backspacing indication, starting a timer; and if a context request message which is sent by a Serving GPRS (General Packet Radio Service) Support Node SGSN of a target network according to the triggering of user equipment is still not received after the timer is timed out, suspending the packet data service on a source network. According to the method disclosed by the invention, under the condition that a target cell does not support a DTM (Dual Transfer Mode), the UE triggers a Mobility Management Entity (MME) of the source network to suspend the packet data service on the source network or the target network and the UE can accurately know whether the target cell supports the DTM, and thus, the packet data service is avoided being wrongly suspended or not being suspended.
Owner:HUAWEI TECH CO LTD

Enhancement of dual transfer mode when circuit switched resources are released

A method and mobile terminal are disclosed for use in a wireless communication system in order for the mobile terminal to be able to transition from a dual mode, in which a packet switched connection and circuit switched connection are used together, to a single mode in which packets are transferred. The mobile terminal is for receiving minimum system information necessary to perform the transition in an uninterrupted manner, instead of an interrupted manner. This system information is broadcast to the mobile terminal on a regular basis, and is also sent to the mobile terminal partly or entirely by point-to-point transfer if a piece of the minimum system information is missing due to inadequate broadcast reception or some other reason. This system information is then employed by the mobile terminal to transition from the dual mode to the single mode in the uninterrupted manner.
Owner:QUALCOMM INC

System, apparatus, computer program product and method for controlling terminal output power

Controlling the output power level of a dual transfer mode (DTM) capable terminal involves generating a network message. The network message may be a circuit-switched (CS) handover command and / or a point-to-point signaling message. A maximum output power level value is associated with the network message. The network message is transferred from the network to the terminal. A packet-switched (PS) output power level of the terminal is determined using the maximum output power level value received via the network message.
Owner:CORE WIRELESS LICENSING R L

Dual transfer mode switching method and universal access network controller

The invention discloses a method for switching dual transfer modes between a universal access network and other universal access networks. A universal access network controller establishes a user data link for a circuit domain and a packet domain for a terminal simultaneously and processes a switching process of the circuit domain and the packet domain related to the same terminal. The invention provides the universal access network controller applicable to the method. By the method, the mobile terminal capable of performing circuit domain and packet domain services simultaneously can freely roam on a wireless core network through different access technologies, and the mobility and service experience of a user are improved.
Owner:HUAWEI TECH CO LTD

Method and system for acquiring neighbor cell information

The invention provides a method and a system for acquiring neighbor cell information. The method comprises the following steps that: an ENB (Evolved Node B) sends a request message for acquiring the neighbor cell information to a service node according to basic neighbor cell information acquired in an ANR (Automatic Neighbor Relation) measuring process; and the ENB receives a responding message responded by the service node to update the neighbor cell information. The ENB can acquire related information of a neighbor cell through sending the request message to the service node so that the ENB can select a suitable moving manner and a target cell when UE (User Equipment) moves according to supporting capabilities of each neighbor cell on PSHO (Packet Service Handover), VOIP (Voice Over Internet Protocol), DTM (Dual Transfer Mode), HSDPA (High Speed Downlink Packet Access), HSUPA (High Speed Uplink Packet Access) and the like, so that the use experience of a user and the whole performance of the system are improved.
Owner:ZTE CORP

Mobile device power control for dual transfer mode (DTM)

A system and method of re-distributing power output by a portable mobile communications device while operating in dual transfer mode (DTM) is disclosed. The device determines if more than one uplink slot is active and if DTM is active. If so, power can be separately regulated for packet switched and carrier switched uplink slots. The device determines whether the circuit switched slot is being used for a voice call that is not in a handsfree or speakerphone mode and evaluates factors associated with the current operating conditions. New power settings are calculated based on the mode for the active circuit switched slot and the factors associated with the current operating conditions of the device. The new power settings are then applied to the active uplink slots such that power is re-distributed on a per slot basis that is not necessarily divided equally among all active slots.
Owner:SONY ERICSSON MOBILE COMM AB

Mobile device, system and method for enhanced channel allocation when radio resource connection is released while in dual transfer mode

A mobile device, system, and method are disclosed for use in a wireless communication system during the mobile device's transition from a dual mode, in which a packet switched connection and circuit switched connection are used together, to a single mode in which packets are transferred. When the circuit switched connection is released, packet resources are allocated by converting timeslots used for circuit switched connection traffic into timeslots used for packet data traffic. Also included is a new alert signal within an existing message to the mobile device during the circuit switched connection release phase, before completion of the circuit switched connection release phase, in order to inform the mobile device that the converting step will occur after release of the circuit switched connection.
Owner:CORE WIRELESS LICENSING R L

Enhanced handling of system information messages when moving from dual transfer mode to packet transfer mode

A method and terminal are disclosed for use in a wireless communication system, in order for the terminal to transition from a dual mode, in which a packet switched connection and circuit switched connection are used, to a single mode in which packets are transferred. The mobile terminal is for receiving minimum system information necessary to perform this transition in an uninterrupted manner. This system information is sent to the mobile terminal automatically or on a regular basis, and is additionally sent to the mobile terminal partly upon request of the mobile terminal. A release indication is sent to the terminal separately from the system information, notifying the terminal that the circuit switched connection will be released, at which point a timer is started. The system information is employed by the mobile terminal to transition from the dual mode in the uninterrupted manner, if the timer has not expired.
Owner:NOKIA TECHNOLOGLES OY

A method for handover of dedicated and shared resources for a mobile station in dual transfer mode

A method for the handover of dedicated as well as shared resources for a communication device. The communication device simultaneously uses circuit switched and packet switched bearer services of a communication network according to a certain connection mode. The method comprises performing a handover procedure, wherein a change from old resources used by the communication device to new resources to be used by the communication device is effected simultaneously for dedicated as well as shared resources .
Owner:NOKIA TECH OY

Method and apparatus for supporting dual transfer mode for handover in GSM system

A method for operating a Mobile Station (MS) for maintaining a Dual Transfer Mode (DTM) and apparatus for supporting the DTM for a handover process in a Global System for Mobile Communications (GSM) system are provided. The method includes receiving a broadcast control message from at least one neighbor cell, determining whether the at least one neighbor cell supports the DTM by using the broadcast control message, and reporting the determination result on whether the DTM is supported and a received signal measurement result. Accordingly, a DTM service can be seamlessly maintained.
Owner:SAMSUNG ELECTRONICS CO LTD

Method and device for entering dual transfer mode to request radio resources

The invention discloses a method and device for entering a dual transfer mode to request radio resources, which are applied to a mobile terminal with a radio resource control (RRC) entity. According to the invention, an RRC entity of an MES (Mobile Earth Station) is deleted so as to initiate a management protocol of requesting radio resources through entering a DTM (Dual Transfer Mode), definitions of signalling GSS (Gateway Station Subsystem) Iu mode DTM REQUEST and GSS Iu mode DTM REJECT of t RRC are deflected at the same time, and a first MAC (Media Access Control) entity of the MES is responsible for management control for entering the DTM to request radio resources, thereby realizing conversion from double-layer entity control management to single-layer entity control management, simplifying the process of entering the DTM to request radio resources, and improving the transmission efficiency of data in a satellite mobile communication system.
Owner:DATANG SEMICON DESIGN
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