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31 results about "Evolution-Data Optimized" patented technology

Evolution-Data Optimized (EV-DO, EVDO, etc.) is a telecommunications standard for the wireless transmission of data through radio signals, typically for broadband Internet access. EV-DO is an evolution of the CDMA2000 (IS-2000) standard which supports high data rates and can be deployed alongside a wireless carrier's voice services. It uses advanced multiplexing techniques including code division multiple access (CDMA) as well as time division multiplexing (TDM) to maximize throughput. It is a part of the CDMA2000 family of standards and has been adopted by many mobile phone service providers around the world particularly those previously employing CDMA networks. It is also used on the Globalstar satellite phone network.

Planning method of multi-system intelligent configurable wireless network

The invention relates to a planning method of a multi-system intelligent configurable wireless network. The planning method comprises the following steps of: determining systems and requirements of wireless network planning by users, and configuring network planning parameters according to the systems and requirements; respectively carrying out rough network planning and fine network planning; and finishing planning results, and providing output data and charts for planning as a total result of the current network intelligent planning for providing reality basis and reference for users. The planning method disclosed by the invention is used for carrying out rough network planning and fine network planning on a set region by combining with an actual geographic information system on the basis of current situation of coexistence of multiple networks and supports single-network and multi-network simulation. Multiplex network systems supported by the method disclosed by the invention not only comprise a 2G (2-generation) network, a 3G (3-generation) network, a 3G (HSPA (High Speed Packet Access), EV-DO (Evolution-Data Optimized)) and 4G (TD-LTE (Time Division-Long Term Evolution), FDD-LTE (Frequency Division Duplexing-Long Term Evolution)), supports planning of multiple clustering systems (TETRA (Terrestrial Trunked Radio), iDEN (Integrated Digital Enhanced Network), GoTa (Global open Trunking Architecture) and GT800) and has complete and perfect functions.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Method and system for detecting power of CDMA (code-division multiple access) 2,000 and EVDO (evolution-data optimized) mixed signals

The invention provides a method and a system for detecting power of CDMA 2,000 and EVDO mixed signals. The system comprises a radio frequency down-conversion device, a digital processing device and a digital control device. A control command is sent by the digital control device to control the radio frequency down-conversion device to perform down-conversion processing on the mixed signals, and then an intermediate frequency signal is obtained; the intermediate frequency signal is converted into a digital signal by the digital processing device, and then the digital signal is subjected to correlation detection, so that a pilot frequency synchronizing signal in the EVDO signal pilot frequency position in the mixed signals is confirmed. An EVDO carrier is emitted with full power, so that the power of a signal in the pilot frequency position is the power of the carrier, and the power of the mixed signals in the pilot frequency position is the actual power of a signal emitted from a base station; and the number of sampling points of the signal power in the pilot frequency position is confirmed according to the pilot frequency synchronizing signal, and the sampling points are accumulated to confirm the power of the mixed signals in the pilot frequency position. With the adoption of the mode, the problems that the power detection of the CDMA 2,000 and EVDO mixed signals is smaller and the fluctuation is larger are solved.
Owner:COMBA TELECOM SYST CHINA LTD

Planning method of multi-system intelligent configurable wireless network

The invention relates to a planning method of a multi-system intelligent configurable wireless network. The planning method comprises the following steps of: determining systems and requirements of wireless network planning by users, and configuring network planning parameters according to the systems and requirements; respectively carrying out rough network planning and fine network planning; and finishing planning results, and providing output data and charts for planning as a total result of the current network intelligent planning for providing reality basis and reference for users. The planning method disclosed by the invention is used for carrying out rough network planning and fine network planning on a set region by combining with an actual geographic information system on the basis of current situation of coexistence of multiple networks and supports single-network and multi-network simulation. Multiplex network systems supported by the method disclosed by the invention not only comprise a 2G (2-generation) network, a 3G (3-generation) network, a 3G (HSPA (High Speed Packet Access), EV-DO (Evolution-Data Optimized)) and 4G (TD-LTE (Time Division-Long Term Evolution), FDD-LTE (Frequency Division Duplexing-Long Term Evolution)), supports planning of multiple clustering systems (TETRA (Terrestrial Trunked Radio), iDEN (Integrated Digital Enhanced Network), GoTa (Global open Trunking Architecture) and GT800) and has complete and perfect functions.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Radio phone for realizing intelligent wireless router function based on EVDO (Evolution-Data Optimized) network

The invention relates to a radio phone for realizing an intelligent wireless router function based on an EVDO (Evolution-Data Optimized) network. An internal functional circuit is arranged inside the phone, and comprises an intelligent gateway functional module, an EVDO mobile phone communication module, a serial port communication functional module and a broadband channel management functional module, wherein the intelligent gateway functional module is connected with the mobile phone communication module through the serial port communication functional module; a router network interface and a power interface are arranged on the lateral surface of a housing of the radio phone; an SIM (Subscriber Identity Module) card slot is formed in the back of the housing; and a phone transmitter is further arranged on the upper surface of the housing of the radio phone. By adopting the radio phone for realizing the intelligent wireless router function based on the EVDO network, various devices such as a computer, a PAD, a mobile phone and the like of a user can surf the Internet through a wired network interface or a WIFI wireless network; the mobile phone clamping slot is formed in the back of the housing of the phone, so that a mobile phone card can be inserted to realize a radio phone function; and the radio phone is compact in structure, economic and practical, and has a wider application range.
Owner:JIANGSU XUANBO ELECTRONICS TECH
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