318 results about "Third generation mobile communications" patented technology

A third generation (3G) mobile communication system supports an over-the-air activation scheme utilizing a wireless packet data protocol. A subscriber identity module (SIM) is preloaded with temporary operating parameters such as a temporary international mobile subscriber identity (IMSI) that is used for initial access to a network. Once a packet data protocol communication link is established between the mobile device and a network support node, the user may remotely subscribe to a number of service terms using the mobile device. In addition, an activation procedure is carried out to assign permanent operating parameters, e.g., a permanent IMSI, to the SIM. After activation, the user can remotely modify existing terms or remotely enroll in additional service features via a wireless IP link between the mobile device and a network support node.

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.

Signal transmission systems for second and third generation mobile communications networks are described. A signal distribution system comprises a plurality of rf transmitters for serving a plurality of network cells. The system is characterised by a multiplexer coupled to the transmitters for multiplexing the transmitter outputs, a signal transporter for transporting the multiplexed signals to each of the network cells, and a multiplexed signal receiver at each cell for selecting and receiving a signal from a transmitter serving the cell. The invention also provides a complementary signal reception system, and corresponding methods. Preferably, the multiplexed signals are transported over a fibre optic network such as an existing cable TV network. The system simplifies the deployment of network infrastructure for third generation mobile communications systems.

A method for providing concurrent service in a mobile communication system is disclosed in which a SCCP connection identifier SLR / DLR of a lower layer and a Service Option Connection Identifier (SOCI) on an IOS message of the higher layer to be exchanged are transmitted when a SCCP connection is established between a BSC and a MSC, thereby providing additional services to those already requested from a mobile station after the SCCP connection establishment without stopping a currently used service. According to the method, the concurrent service is provided while minimizing the conventional call processing procedures on the interface between the BSC and the MSC, thereby allowing a subscriber to use new additional service without stopping the current service or concurrently use a plurality of services such as voice and packet data services. Furthermore, a flexible confront is possible to a future development direction of the network. Providing concurrent service is an essential function of the third generation mobile communication network in a multimedia environment.

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.

í«Distant positioned radio frequencyí» places transceiver of base station near to antenna and far apart from devices of base station. Using medium frequency transmission, the invention implements technique of í«distant positioned radio frequencyí» in order to solve issue of small covering radius of sub zone, and high cost of base station caused by radio wave propagation property in 2GHz frequency range The medium frequency transmission separates transceiver part in analog radio frequency from digital signal process in base band of devices of base station so as to form a public unit in room and multiple remote front end devices in radio frequency, where interface in medium frequency is located between them. Being connected in series or star form through wired or wireless modes, the interface implements services, reference clock, frequency conversion, encoding and path jointing etc, for various control signals. Features are: convenience and cheap.

An access network unit of a third-generation mobile communication system controls a wireless LAN system by regarding the wireless LAN system as a packet communication channel. The access network unit includes a radio network controller connected to a base transceiver station that is capable of performing a wireless communication with a mobile terminal in the wireless LAN system, and electrically connected to access point stations of the wireless LAN system. Therefore, setup and control of a wireless LAN channel lead by the third-generation mobile communication system can be performed between both systems.

This invention discloses a support method of high speed down stream data packet access system to different service qualities combining characters of HSDDA and drawing lessons of the third generation mobile communication system REL99 to support different service qualities putting forward mapping and distribution of system service quality parameter, increasing queues for storing different transmitting channel data on media access control layer of HSDPA base station and designing a queue arrangement algorithm for meeting requirement of different service qualities.

The invention discloses a balance priority microcell energy-saving method in a relay system, which mainly solves the problem that an Energy Saving mechanism has a ping-pong effect in the prior art. The method comprises the steps that: 1) a microcell monitors the load change condition per se under a normal operating state; 2) when discovering that the load is lower than an energy-saving closed standard value of the cell, the microcell triggers an active pre-balancing process; and 3) if the energy-saving mechanism of the microcell is needed to be closed, the microcell is closed according to the balanced result, during the closure, a macro-cell restarts the microcell according to the Energy Saving mechanism; and if the microcell is needed to continuously operate, the operating state of the microcell is continuously kept. The method can solve the problem that the Energy Saving mechanism has the ping-pong effect in the prior art, greatly contributes to improving the utilization rate of a communication resource and improving the comprehensive performance of the system, and can be used for the wireless resource management RRM process for a relay in the third-generation mobile communication technology.

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 discloses a Bayesian algorithm-based content filtering method. Content filtering is performed for text information in a 3rd generation mobile communication core network, text classification is performed by using a double threshold-based Bayesian algorithm, C1 is set to be normal information, C2 is set to be junk information, a classifier estimates the probability that a characteristic vector X which represents a data sample belongs to each class Ci, and a Bayesian formula for the estimation is that: P(Ci / X) = P(X / Ci) P(Ci) / P(X), wherein i is more than or equal to 1 and less than or equal to 2, the maximum value of a posterior probability is called the maximum posterior probability, for an error (a reference source is not found) of each class, the error (a reference source is not found) only needs to be calculated, a characteristic vector X of an unknown sample is assigned to the Ci class of the error (a reference source is not found) with the minimum risk value. Characteristic selection is performed by adopting document frequency (DF), and classification is performed by using minimum risk-based double threshold Bayesian decision. In a time division-synchronous code division multiple access (TD-SCDMA) mobile internet content monitoring system, the algorithm has higher controllability and can realize real-time high-efficiency classification of mass text information.

The invention relates to the field of wireless communication, in particular to a joint estimation method of time deviation and frequency deviation in a third-generation mobile communication long-term evaluation system (short for 3G LTE). The method is characterized by comprising the following steps of: A. separating channel gain estimated values of PUSCH (Physical Uplink Shared Channel) demodulating reference signals (DM RS) of two time slots from received subframe data; B. calculating a correlation value of channel gain between two subcarriers which are respectively positioned on different PUSCH DM RS and have the frequency domain distance of s subcarrier intervals so as to obtain a joint estimation phase difference of time deviation and frequency deviation; and C. respectively obtaining the phase deviation of time deviation and frequency deviation according to the joint estimation phase difference of the time deviation and the frequency deviation so as to estimate a time deviation value and a frequency deviation value of a system. The method can be used for reducing the calculation amount of an estimation algorithm on the basis of ensuring estimating precision, thereby ensuring the real-time receiving performance of the system.

An important objective for third generation mobile communications systems is to provide IP services, and a very important part of these services will be the conversational voice. The conversational voice service includes three distinct information flows: session control, the voice media, and the media control messages. In a preferred embodiment, based on the specific characteristics for each information flow, each information flow is allocated its own bearer with a Quality of Service (QOS) tailored to its particular characteristics. In a second embodiment, the session control and media control messages are supported with a single bearer with a QoS that suits both types of control messages. Both embodiments provide an IP conversational voice service with increased radio resource efficiency and QoS.

The invention relates to a method with differential service, which comprises: when the user accesses into network, the mobile exchange center confirms the user group number at the user priority group; when there is service access, the mobile exchange center relative to the service, based on the relative information and the user group number, confirms the service priority and the service quality level, to obtain the service priority and the service quality information; the mobile exchange center sends said service priority and the service quality information to the relative base station controller; the mobile exchange center and the base station controller, based on the service priority and the service quality, distribute wireless resource. The invention can be used in second and third generation mobile communication systems.

The invention disclose a method to measure the adjacent section, the method includes: A. determines the measuring type of target adjacent section; B. measuring the adjacent section according to the determined measuring type. The invention also discloses user terminal for measuring the adjacent section. The schedule accords with the variable real condition of bandwidth in the application environment of the third generation movable communication technique long evolution project (LTE), and it can measure the adjacent section in LTE system using the invention.

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.

A method and apparatus for subscribing to a digital broadcasting service using mobile network subscription information in a system where a 3G (third generation) mobile communication network interacts with a DBS (digital broadcasting system) are provided. When a user requests subscription to the digital broadcasting service through a digital broadcasting-enabled mobile equipment, a DBS-CSCF (call session control function) in the 3G network transmits to an SAS (subscription agent server) of the DBS a service subscription request including the mobile subscription information or additional user personal information. The SAS processes the subscription and transmits information required for reception of the digital broadcasting to the mobile equipment. The mobile equipment changes its digital broadcasting reception setting.

The invention relates to a system which can realize the remote video monitoring based on the third generation mobile communication system and the process. The system comprises a video monitoring terminal device and a remote 3G cell phone, wherein the video monitoring terminal device comprises a 3G cell phone communication module, a camera shooting module, a DTMF decoding module, a tripod head function module and a central processing module. The process comprises a video monitoring initialization arrangement operation, a user initiation video monitoring operation and a system intrusion detection video monitoring operation. A monitoring system can be simply installed through adopting the system and the process which can realize the remote video monitoring based on the third generation mobile communication system without limiting by a wiring, the attack of virus software can be prevent at a maximum degree to protect the privacy of user which is monitored without help of the other platforms, which is fast, safe and reliable, can not generate false alarm, the usage is safe and fast, the working property is stable and reliable, and the application range is more extensive, and the invention lays the firm foundation for the further development of the third generation mobile communication system telecommunication appreciation business.

A different system hard switching method for WXDMA system, which is adaptive to initial stage application of third generation mobile communication system network establishment, improves signal quality of user communication in optimum mode, reduces UE transmission power and interference to other cells, said method also refers process of emergency of wireless network, dispatching among modules in integral system and technological content of planning 3G system network, can be adapted to other CDMA system.

The invention disclosed a method which achieves call in a multimedia communication call control. This method includes: set user service information of rank in advance, obtain customer service information of rank related to call entities, according to user information of rank, defined users call processing priority, and call in accordance with established call processing priority. According to user information of rank, the invention brings up processing priority call methods in the third generation mobile communication multimedia communications call control, such as IP Multimedia Subsystem (IMS). The method provides a different priority call for different user service rank, and ensures the call-processing speed of the important network user's, improves customer satisfaction and loyalty.

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.

The invention provides a data service processing method and a data service processing device. The data service processing method includes the following steps that whether a mobile terminal is in a roaming state or not is judged; when the mobile terminal is determined to be in the roaming state, a data service is carried out under a first communication network, and the mobile terminal is made to stop searching for a second communication network, wherein the first communication network is a second-generation mobile communication network or a third-generation mobile communication network, and the second communication network is a fourth-generation mobile communication network. According to the data service processing method and the data service processing device, the problem that when a global user identification card with the unopened 4G data service roaming function is used in an LTE multi-mode single-card dual-standby mobile phone for roaming, a data service on the 2G / 3G network is frequently interrupted is solved, and power consumption of the terminal is reduced.

The invention relates to a method for a mobile terminal in a third-generation mobile communication system to receive and maintain system information, comprising the following steps: setting the mobile terminal in an idle or connected mode; measuring and judging whether a reelection rule is satisfied or not by an adjacent cell; performing cell reelection and synchronous processing of a target cell when the reelection rule is satisfied; judging whether the system information of the target cell is received and stored or not; obtaining and analyzing the information of a main information block of the target cell or obtaining the information of the main information block of the target cell and all system information according to results; and judging whether the target cell allows to reside or not, if so, residing to the target cell and performing system information updating and replacing operation. The method for the mobile terminal in the third-generation mobile communication system to receive and maintain system information effectively lowers the power consumption of the mobile terminal, improves the running efficiency of the system, has simple and rapid arithmetic, convenient realization, stable and reliable working performance and wide range of application, and lays a solid foundation for the perfection and the optimization of the third-generation mobile communication system.

The present invention discloses a baseband chip and a method to implement multi-mode switching for a mobile terminal based on the baseband chip, the baseband chip of the mobile terminal in the present invention includes three subsystems of a source encoding / decoding subsystem 102, a wireless transmitting / receiving subsystem 101, a wireless transmitting / receiving and source encoding / decoding common control and process subsystem 100, the baseband chip may be implemented by using a single chip based on CMOS technology. The baseband chip of the present invention are suitably used to a TD-SCDMA mode mobile terminal or a multi-mode mobile terminal including TD-SCDMA, the new requirements proposed to the mobile terminal of the third generation mobile communication technology are met, and repeated design are decreased; furthermore, the method of switching among different communication modes for the mobile terminal based on the above mentioned baseband chip in the present invention implements the switching among different communication modes for the mobile terminal.

The apparatus comprises: a data exchanging interface used for intercommunication with external data; a FPGA module used for analyzing and giving out the received data, for packaging and giving out the transmitted data and for control the clock signal of the apparatus; a memory module used for buffering the data after the analyzing and before the packaging and relevant instruction data; a DSP used for reading out the data in the memory module and making relevant process, and for processing the transmitted data and transmitting it to the FPGA. The system completes the relevant testing based on the apparatus above. The invention can be used in TD=SCDMA, CDMA2000 and WCDMA system.

A call set-up method is described for use in a communication network, in particular a third generation mobile communication network. First, it is attempted to set-up a call between a call originator and a call destination using a communication connection of a first type, for example Voice over IP. In case that it is determined that the call cannot be set-up using the communication connection of the first type, a node in the communication network sets up the call to both the call originator and the call destination using a communication connection of a second type, for example Circuit Switched Adaptive Multi Rate voice call.

The invention provides a method and a system for adjusting a vehicle travelling state information transmitting rate. The method comprises the following steps that: a vehicle inside a first management region transmits vehicle travelling state information receiving and transmitting records to roadside equipment to which the vehicle belongs through a base station of a third generation mobile communication network; the roadside equipment calculates network performance parameters of a WAVE-based wireless network according to the vehicle travelling state information receiving and transmitting records; a judgment on whether any network performance parameter surpasses a preset threshold value is made, an optimum transmitting rate value is calculated by using the network performance parameters if any network performance parameter surpasses the preset threshold value by judgment and the optimum transmitting rate value is broadcast to a vehicle inside a first coverage area through the WAVE-basedwireless network; and the vehicle in the first coverage area broadcasts the optimum transmitting rate value to the vehicle which is outside the first coverage range and inside the first management region by using a multi-hop router through the WAVE-based wireless network. By the method and the system of the invention, the vehicle travelling state information transmitting rate can be adjusted in real time and accuracy is enhanced.

This invention relates to a concomitant phone service solving plan for the second and the third generations of mobile communication system and discloses a switch method among systems of mobile communication service, thus, when a 3G system of WCDMA meets with the situation of shortage of network resources in communication, it transfers the AMR phone service to a 2G of GSM system network smoothly so as to fully utilize the two kinds of systematic resources and increase the network performance of the AMR phonetic service. This invention fully utilizes the network design information and quality test information of the RACH channel to get the GSM adjacent area covering the UE based on the position relation of the areas.