153 results about "3g mobile communications" patented technology

A method for changing service from 2G network back to 3G network includes informing access network to revise said service to be SCUDIF call service after switched back service quality being decreased in 2G network is confirmed by core network in 3G network, revising said service to be SCUDIF call service by access network according said notification.

Disclosed is a structure of a downlink common channel for transmitting an ACK / NACK to notify whether retransmission should be performed through a transmission position of the downlink common channel according to a channel code of a time slot allocated to a UE, and a method for distinguishing an ACK from a NACK, in using a HARQ scheme for uplink transmission of a TDD CDMA scheme in a 3G mobile communication.

The invention is a taxi operation safety and dispatching control system consisting of vehicle device, GSM / GPRS or 3G mobile communication platform, road traffic information module, calling module, preserving and calling module, passenger position identifying module, monitor module, geographic information module, safety module, guide module, charging module and so on. The system sends the passenger on and off information into dispatching center and records vehicle coordinate and line to dispatching center data base.

The invention relates to a vehicle comprehensive information system based on the third-generation (3G) mobile communication, comprising a server and a vehicle-loaded terminal communicating with each other via a 3G network. The vehicle-loaded terminal comprises a vehicle bus interface module, a 3G mobile communication modem module and an embedded-type control module, and the server comprises an information receiving module, an information storage module, a function module and an information issuing module. The vehicle bus interface module is accessed to an inside control bus of a vehicle through an OBD interface, obtains the vehicle running information and transmits the information to the embedded-type control module; the embedded-type control module obtains and processes the vehicle running information and communicates interactively with the server through the 3G mobile communication modem module connected with the embedded-type control module; the information reception module receives the information of the vehicle-loaded terminal transmitted by the 3G network; the information storage module stores the information of the information receiving module and the application information; the function module is used for realizing the application functions of vehicle positioning, map navigation, real-time path plan, theft prevention of vehicles and the like; and the information issuing module is used for transmitting information provided by the server to the vehicle-loaded terminal.

Space-time transmit diversity spread spectrum receiver architectures and methods are described for reducing interference, particularly the interference observed at a user-end terminal in a W-CDMA 3G mobile communications system. Interpath interference which arises due to non-zero cross and auto correlation of more than one spreading code is suppressed by estimating a transmitted signal stream, or a plurality of such signal streams in the case of a plurality of multipath components, respreading this estimated signal and subtracting non-orthogonal interference contributions from a received signal. The techniques provide an improved bit error rate or equivalently, enhanced capacity for a digital mobile communications network.

An automobile burglar proof system based on the third mobile communication network is prepared as forming 3G mobile communication operation network by radio access network and core network, forming user unit by vehicle terminal and mobile phone terminal, combining 3G mobile communication operation network with Bluetooth technique for realizing P2P real time monitoring.

The invention comprises the following steps: connecting a 3G video call to a mobile video media monitoring platform; transmitting the 3G video call to an IP address and port appointed by the platform through RTP protocol and its equipment; when user makes a 3G video call, the system will display the sources of the video signal on an optional menu in term of the authority of the user in order to provide a selection for user; after user selects a source of video signals, the relevant video signals will can be played.

The invention discloses a road lamp management and taxi call automatic dispatching system based on the Internet of things. The system uses the road lamps spreading over roads in the city as the positioning and network basis and adopts the ZigBee wireless network and GPRS (General Packet Radio Service) / GSM (Global System for Mobile Communications) / 3G mobile communication network to realize two-way communication between the road lamps and a road lamp control station, between the passengers and a taxi management centre, between citizens and an alarm centre as well as between the taxi management centre and a vehicle-mounted taxi GPS terminal.

The invention provides a method and apparatus for estimating flat fading channel in CDMA communication system, said method is implemented by using an adaptive forward prediction technique based on lattice filter and maximum likelihood technique of Viterbi algorithm. The adaptive lattice filter is used to carry out prediction of LS criteria on channel fading, and a maximum likelihood detection technique completes Viterbi algorithm in accordance with a channel fading value obtained by the prediction, thus obtaining final estimation and decision about the transmitting signals. The present invention has the advantages that it can obtain accurate result for channel estimation and sequence decision when it operates in the fast fading channel, and overcome fast fading influence due to motion speed up of mobile station, thereby satisfying mobile station speed and corresponding receiving performance required in 3G mobile communication.

An active handoff system and method of a dual mode terminal capable of connecting to a wireless network, such as wireless local area network (LAN), and a mobile communication system are provided. The handoff method includes the steps of assigning, at a packet data service node of the mobile communication system, an IP address to the dual mode terminal connected to the service network, establishing, at the packet data service node, a tunneling path to the wireless LAN when the dual mode terminal moves from the mobile communication network to the wireless LAN, and disconnecting, at the packet data service node, the tunneling path to the wireless LAN, and establishing a tunneling path to another packet data service node whose Internet Protocol (IP) address has been established by the packet data service node, when the dual mode terminal moves from the wireless LAN to the mobile communication system. A dual mode terminal that moves from a 3G mobile communication system to a wireless network in an active state maintains an existing IP address assigned from an active 3G mobile communication system so that the dual mode terminal can maintain an upper layer session and transmit an IP packet to a terminal located in a 3G mobile communication system.

The invention discloses a data transmission method for cell under paging state, belonging to 3G mobile communication system. The method comprises (1)when universal mobile communication system land wireless access network UTRAN is to transmits data to user terminal UE under cell paging state CELL_PCH, if high speed downlink shared channel wireless network temporary mark H-RNTI has been assigned for UE, then sending UE paging instruction at high speed shared control channel Hs-SCCH and high speed downlink physical shared channel HS-PDSCH reception parameter and transmits data to the UE at HS-PDSCH channel; (2) when UE directly monitors HS-SCCH channel at incontinuous reception DRX cycle, if the UE finds the own paging instruction, then receives the data transmitted at the channel using corresponding HS-PDSCH channel reception parameter. The invention can effectively reduce time delay, promotes transmission efficiency.

The invention discloses a mobile video monitoring system which achieves a digital video compression function and a 3G wireless transmission function by utilizing an SOC (System on a Chip) single-chip multimedia processor and a 3G wireless communication system. The mobile video monitoring system comprises a 3G wireless network camera body, a video input device and an audio input device; and the wireless communication system can be accessed to a 3G mobile wireless communication network, a Wifi wireless Ethernet or an Ethernet. The 3G wireless network camera uses the SOC single-chip multimedia processor as the core, and is externally connected with a data storage SDRAM (Synchronous Dynamic Random Access Memory), a program storage NANDFlash, a CMOS (Complementary Metal Oxide Semiconductor) sensor camera or a video analog-to-digital (AD) converter, an audio AD converter, a 3G wireless communication module, a Wifi wireless Ethernet module and an Ethernet module. The 3G wireless communication module and the Wifi wireless Ethernet module are connected with a radio-frequency antenna and a radio-frequency circuit; and the video AD converter and the audio AD converter are respectively provided with a video input interface and an audio input interface. The SOC single-chip multimedia processor achieves a video encoding / decoding function, a wireless transmission function and a control function by using a Linux real-time operation system.

The invention relates to a self-service information transmitting / receiving system and a self-service information transmitting / receiving method of a mobile terminal. The self-service information transmitting / receiving system comprises a mobile intelligent terminal, a system data center, a user management system and a plurality of display screens, wherein the mobile intelligent terminal communicates with the user management system through internet, a global system for mobile communication (GSM), general packet radio service (GPRS), wideband code division multiple access (WCDMA) or third-generation (3G) mobile communication; and a plurality of display screens are connected with the system data center through the internet and used for displaying information contents. According to the system, a user can publish information in a self-service mode, and the information is displayed by the display screens. When the user is in a radiation range of a certain display screen, the system automatically synchronizes the contents of the display screen to the mobile intelligent terminal, and interaction between the user and the information is realized. Moreover, the system can automatically adjust a price by computing the content delivery and cost conditions of each display screen, and is high in using efficiency.

The related dynamic simulator for performance of 3G mobile communication system network layer comprises: a common PC, and a corresponding software stored in HD with nine function modules. This invention uses discrete-affair drive mechanism for sending and process, has precise result to reflect real system dynamic performance well, and has bright application future.

A processor duplexing method is applied to a 3G mobile communication system switching operation without involving application software. In this method, Real-Time operating system (RTOS) detects that a duplexing operation is being performed. While the duplexing switching operation is being performed, the RTOS and a PCI controlling unit dump a memory of an active board to a standby board, thereby synchronizing a memory between the active board and the standby board. Once the duplexing switching operation is complete, the standby board sequentially starts operation of the active board. In this method, duplexing of a processor level is performed without using application software in the RTOS. Instead, duplexing is a performed by a substructure (hardware and OS). As a result the burden of having the application software grow larger and more complicated is significantly reduced.

The invention discloses a method and a device for encoding and decoding embedded voice or a voice-frequency signal, belonging to the encoding technology and aiming at solving the problem that a signal frequency band processed by the prior embedded voice encoding is narrower. The method for encoding the embedded voice or the voice-frequency signal comprises the following steps: dividing the signal into a low-frequency subband and a high-frequency subband according to a frequency band occupied by mono ultra wideband voice or a voice-frequency signal; carrying out embedded encoding for a low-frequency subband signal of the mono ultra wideband voice or the voice-frequency signal in a wideband embedded encoding layer; and carrying out the embedded encoding to a high-frequency subband single of the mono ultra wideband voice or the voice-frequency signal in a preset high-frequency signal encoding layer. The method and the device for encoding and decoding the embedded voice or the voice-frequency signal can be applied in the fields of audio / video frequency conferences, picturephone conferences, network communication, mobile communication, network congestion control, 3-G mobile communication and 4-G mobile communication.

The invention is applicable to the communication field, and provides a wearable device. The wearable device comprises a 3G mobile communication module, a near field magnetic resonance wireless charging receiver and a bone conduction audio conversion module, wherein the 3G mobile communication module is used for realizing functions of dialing or answering a telephone and sending and receiving a message; the near field magnetic resonance wireless charging receiver is in communication connection with the 3G communication module and used for realizing a wireless charging function through a near field magnetic resonance mode; the bone conduction audio conversion module is in communication connection with the 3G mobile communication module, and used for converting received general audio signals into high-frequency bone conduction signals and transmitting the bone conduction signals to the brain through a preset transmission path, thereby realizing a function that an incoming call can be answered when a user inserts the finger into the ear. The wearable device provided by the invention can provide a simple incoming call answering mode, and can reduce occurrence of a condition that incoming calls are missed, thereby greatly improving experience fun of a user.

Spread spectrum receiver architectures and methods are described for reducing interference, particularly the interference observed at a user-end terminal in a W-CDMA 3G mobile communications system. Interpath interference which arises due to non-zero cross and auto correlation of more than one spreading code is suppressed by estimating a transmitted signal stream, or a plurality of such signal streams in the case of a plurality of multipath components, respreading this estimated signal and subtracting non-orthogonal interference contributions from a received signal. The techniques provide an improved bit error rate or equivalently, enhanced capacity for a digital mobile communications network.

An omni-directional monitoring system for driving and parking records of an automobile comprises an automobile body, GPS navigation and a mobile communication transmitting unit. The omni-directional monitoring system is characterized in that infrared cameras are installed at the front and the back of the automobile body, infrared cameras are installed above rearview mirrors on the left side and the right side of the automobile body, and infrared cameras are installed in a cab and an automobile box. The microcomputer host compatible vehicle-mounted GPS navigation, a GPS satellite positioning module and the 3G mobile communication transmitting device are installed in the automobile body. An independent light source is connected to the host after insuring and voltage stabilization. The host is provided with a shock absorption device and comprises a vehicle-mounted GPS navigation module, the GPS satellite positioning module and a 3G mobile communication module. Output lines of the cameras and a sound pick-up are transmitted to the host through terminals, and after processing, the host carries out storage. Meanwhile, a 3G mobile communication transmitter is used for transmitting to a remote control computer center or a mobile phone with a video function. Signals transmitted by the vehicle-mounted cameras and the sound pick-up are collected, stored and analyzed, and the signals are displayed and printed. The omni-directional monitoring system is suitable for monitoring a cash truck, or a school bus, or a bus, or a police car, or a train, or a steamer or the like.

The present invention provides the user of the phone terminals, especially the users of 3G mobile communication terminals a novel dynamic multimedia sing service, enable the users of broadband phone terminals to enjoy the multimedia ring message from the network by their phone terminals.

The invention discloses a multi-system signal detection device based on Beidou satellite. The multi-system signal detection device based on the Beidou satellite comprises a radio frequency antenna, a radio frequency signal processing chip, a multi-system signal radio frequency time multiplexing control unit, a multi-system signal baseband processing unit and a multi-system signal continuous measurement master control center, wherein the radio frequency signal processing chip is communicated with the radio frequency antenna; the multi-system signal radio frequency time multiplexing control unit and the multi-system signal baseband processing unit are communicated with the radio frequency signal processing chip; and the multi-system signal continuous measurement master control center is respectively communicated with the multi-system signal radio frequency time multiplexing control unit and the multi-system signal baseband processing unit. According to the invention, the signal reliability of a Beidou navigation terminal under the severe application scenes that a satellite signal is weak, an obstructed object exists between the satellite navigation terminal and a satellite, 2G / 3G mobile communication signals are shielded, and the Beidou navigation terminal has overhigh moving speed is enhanced; the requirement on the Beidou satellite signal is lowered; the self adaption and service capability of the Beidou navigation terminal are improved; the user experience of the Beidou navigation terminal is improved; the positioning precision when the navigation signal is unstable is improved; and the continuity for obtaining geographic position information is improved.

The invention relates to an information acquisition and network declaration and approval system of a full coverage network. The system improves the working efficiency of information acquisition and network declaration and approval of a management department, saves the social cost and ensures information security; the system is applicable to wire and wireless, broadband and narrowband and has bidirectional penetrating power for multilayer NAT among networks; the system is an information acquisition and network declaration and approval management platform which is connected with a VPN management platform, a VPDN management platform, a mobile phone E-mail inquiry and bill system, and a multimedia information inquiry and value-added service management platform; the VPN management platform is connected with a client terminal through Internet; the VPDN management platform is connected with the client terminal through a PSTN network, a 3G mobile communication network and a CDMA mobile communication network; and the multimedia information inquiry and value-added service management platform is connected with the client terminal through the 3G mobile communication network and a CDMA / GSM mobile communication network. The system has the advantages that the system can cover full networks and has good bidirectional penetrating power for the multilayer NAT among various networks; a management mechanism and a user staying indoors can safely carry out information acquisition, network declaration and government verification and approval; and the working efficiency is greatly improved, the social cost is saved, and the guarantee of information security is acquired.

The invention belongs to a remote regulation and control method for an implanted medical device, and particularly relates to a method for remote regulation control as well as tracking survey of patient state of an implanted deep brain stimulator. The system is based on the SIP (session initiation protocol) and RTP (real-time transport protocol) as well as Bluetooth communication mode of the 3G (3rd generation) communication network, and realizes one-to-one visual safe remote regulation and control. The system mainly comprises a control end 1, a 3G mobile communication network 2, a client 3, aprogram controller 4 and an implanted pulse generator 5. The regulation and control method comprises the following steps: a doctor looks for relevant information of a patient through a computer 6 of the control end 1 and a 3G mobile phone 8, observes the physical sign of the patient, selects proper adjustment parameters and sends the adjustment parameters to the client 3 through the 3G mobile communication network 2; the client 3 communicates with the program controller 10 through a Bluetooth protocol; and the program controller 10 controls the pulse generator 11 and reversely returns the feedback information to the control end. According to the invention, the physical sign information of the patient can be acquired anytime and anywhere, the stimulation pulse parameters are adjusted, and the clinical requirements on tracking visit and quick diagnosis of the patient with the implanted deep brain stimulator are met; and moreover, as the public wireless communication network and common communication equipment are used, the cost is low, the reliability is high, and the practicability is strong.

A charging method of the third generation mobile communication system includes inserting user type and / or contracted priority level information as portion of user contracted data in MSC / VLR by HLR when user device position is updated, deciding priority level to be used on current call in call course dynamically by MSC / VLR, carrying user type and / or priority level information in toll ticket sent to charging center or in IDP message sent to SCP, applying different charge rate or mode to carry out charging by SCP or charging center according to user type and / or priority level information.

The invention relates to a method and a system for transmitting packet switched control data traffic between a base station (NodeB) of a third generation (3G) mobile communication network and a network management station. In the system according to the invention, an IP-VPN virtual network is used to isolate essentially the control data traffic between a base station (301) of a third generation (3G) mobile communication network (301) and a network management station (305) from other data transfer transmitted in the data transfer network.

The method includes following steps: mobile terminal system creates parameter set of packet data; setting up and storing parameter sets in four application levels: session level, stream level, interaction level and background level; QoS parameter in each level is included in parameter set of packet data in each level; setting up legal sign for each parameter set of packet data in four application levels; starting up service application, and calling parameter set in different application levels setup in advance; reading out each parameter from parameter set, and building data calling. Based on different application, the invention sets up relevant QoS parameter and building data calling so as to raise quality of data communication.

The invention discloses a mobile intelligent terminal third-generation (3G) communication energy consumption and user performance experience balancing and scheduling scheme, and belongs to the field of 3G mobile communication energy-saving control. A model for describing an application service performance experience index is constructed; when a mobile terminal sends a network data transmission request, flow arrived in advance is shaped, so that under certain performance loss index constraint, flow convergence can be finished as much as possible by the transmission request; and the tendentiousness between the network transmission energy consumption and the performance experience index can be directly and effectively adjusted by adjusting a balancing factor of an algorithm. By the scheme, long-time high-energy-consumption states caused by 3G communication can be greatly reduced; and under the condition that requirements of different performance experience index are met, the transmission energy consumption of a 3G network can be effectively reduced by adjusting the balancing factor.

A method for switching service in the third generation of mobile communication system includes using MSCe to inform MGW to derive off IWF entity on old T and using new T to it take over when switch is occurred for ensuring to use one and the same IWF entity resource before and after switch in order not to interrupt service; enabling MSCe to inform MGW object and time transferred by IWF indirectly by changing variation of topology relation of new and old T to service opposite T; setting up a virtual T to be used as opposite T for QNC service.