Huawei Technologies Co., Limited

Zte Corporation

Xinxi Diao

Li Zhang

Gang Li

Guang Yang

Xiaowu Zhao

Jian Hu

Jun Li

Ling Xu

Zhifeng Ma

Fangfu Guo

Xiaodong Zhu

Qun Li

Bin Xu

Weiming Duan

Dongmei Li

Jiancheng Du

Jiang Wu

Zhengrong Lai

Yiqing Cao

XiaoDong Zhu

Yi Xie

Huanqiu Ye

Linhui Wei

Tianheng Yue

Senlin Zhang

Disclosed is a method for transmitting pseudolite system messages, the method including: pseudolite sends pseudolite node parameters of the pseudolite to which a positioning system messages broadcast channel belongs, and pseudolite node parameters of the pseudolite adjacent or nearby to the pseudolite to which the positioning system messages broadcast channel belongs, in the configured positioning system messages broadcast channel. A method for transmitting indication message of the positioning system messages broadcast channel is also disclosed in the present invention, the method including: a wireless access point sends an indication message of the positioning system messages broadcast channel of the pseudolite to a radio positioning terminal in its service area. According to the indication message of the positioning system messages broadcast channel, the radio positioning terminal accesses corresponding the positioning system messages broadcast channel, and surveys the positioning signal and/or positioning based on the node parameters obtained from the positioning system messages broadcast channel. A pseudolite positioning system and associated device are also disclosed in the present invention. By the present invention, it is possible to reduce the occupancy for the wireless access point in the pseudolite positioning.

Method for transmitting pseudolite system messages, pseudolite positioning system and associated device

The present invention provides a method for duplexing communication, and a method and a system for scheduling a terminal. The method for scheduling a terminal includes: determining capability information of the terminal when the terminal makes a request for a service; allocating a band resource for the terminal according to the capability information of the terminal and the currently available band resources, and sending information of the allocated band resource to the terminal in the band currently used by the terminal, wherein the allocated band resource includes a bidirectionally used band, and at least one of the uplink band and downlink band includes a unidirectional band; and communicating with the terminal in the manner of time division duplexing by way of the allocated band resource. The present invention makes the best of the band resources near the TDD licensed band and improves the communication efficiency.

Duplex communication method, terminal scheduling method and system

A cooperative transmission system for single frequency digital broadcasting network and method thereof are disclosed, said system includes a first double-layer cooperative transmission structure with same frequency and a second double-layer cooperative transmission structure with same frequency, which are vertically aggregated; wherein each of the double-layer cooperative transmission structures with same frequency is made up of a main transmission layer including several main transmitters with same transmitting frequency and an auxiliary transmission layer including several auxiliary transmitters with same transmitting frequency; the electromagnetic wave transmitted by the main transmitters in the first double-layer cooperative transmission structure with same frequency and the electromagnetic wave transmitted by the main transmitters in the second double-layer cooperative transmission structure with same frequency have different frequencies. The present invention makes up the disadvantage of the single frequency network, and can greatly improve the spectrum efficiency of broadcasting channel, the coverage (especially the indoor coverage) of broadcasting signal and the effect of mobile receiving of broadcasting signal.

Synergetic transmitting system for digital broadcast SFN and method thereof

The present invention relates to a method and apparatus of precise first-path detection in CDMA mobile communications systems, comprising the steps of: a. calculating the noise threshold for the first-path detection according to the multi-path profile; b. judging whether there is a maximum point exceeding the noise threshold in the multi-path profile, if yes, carrying out side-lobe suppression at this maximum point and obtaining the candidate first path; otherwise, setting the flag of no first path existing, and exiting the entire process of first-path detection; c. judging according to the location of the candidate first path whether the first path is ambiguous, if yes, carrying out correction of first-path ambiguity, obtaining the corrected location of final first path, and exiting the entire first-path detection process; otherwise, outputting the location of candidate first path as the location of final first path. The apparatus in accordance with this invention comprises at least a module for noise threshold calculation, a module for side-lobe suppression, and a module for first-path ambiguity detection and correction.

Method and apparatus for precise first-path detection in CDMA mobile communications system

The present invention relates to a repeater for positioning mobile station and a method thereof. The repeater according to the present invention is implemented through adding a cell identifier generator module to the downlink circuit structure of a conventional repeater; said cell identifier generator module includes: a synchronization searching unit designed to search for base station synchronization signal, a time delay unit designed to generate a fixed delay between start time of cell identifier signal frame and start time of base station pilot signal frame, and a cell identifier signal generating unit designed to generate cell identifier signal code word. The mobile station positioning method determines the mobile station is in the coverage of the repeater on the basis that the time difference between base station pilot signal and cell identifier signal is consistent to the fixed delay; then the method utilizes TOA (Time of Arrival) measuring function to determine the distance from the mobile station to the repeater; thus it improves positioning accuracy of mobile stations in the coverage of the repeater. The repeater for positioning mobile station is easy to implement and can meet the positioning requirement of a plurality of mobile stations in the coverage of the repeater.

Direct amplifying station and positioning method for mobile station thereof

The invention provides a method and apparatus for increasing the accuracy for locating a cellular mobile station in an urban area. The method is performed as follows: at first, if there is a request for location, the approximate position of a mobile station is determined by sector information, the time of arrival, and a time difference of arrival; then, the transmission of a locating pilot frequency for an adjacent assistant locating apparatus is initiated, and in the case of the transmission of the assistant locating pilot frequency, the time difference of arrival is measured once again; at the end of the measurement of the mobile station, the locating transmission of the assistant locating apparatus is closed; the assistant locating apparatus is requested to report the result of NLOS identification; with the measurement of the assistant locating pilot frequency by the mobile station and the result of NLOS identification, the position of the mobile station is estimated to acquire a more accurate position of the mobile station.

Method and apparatus for increasing accuracy for locating cellular mobile station in urban area

An apparatus and method for implementing multi-traffic load monitoring and prediction in a CDMA cellular mobile communication system includes a received signal strength indication (RSSI) measuring unit for measuring total interference power and processing a measured value to eliminate jitters; a parameter accounting or statistic unit for accounting for some traffic parameters associated to the load monitoring and prediction; a load monitoring unit for calculating the load monitoring based on the measured value and statistic results; and a load prediction unit for calculating an increased amount of an up link load after receiving or accessing new traffic and a total load value after receiving or accessing the new traffic based on parameters requested by the new traffic and calculation results transmitted in real time by the load monitoring unit.

Apparatus and method for implementing multi-traffic load monitoring and prediction

The invention discloses a method that identifies whether a channel is LOS or NLOS in a mobile communication system. After coherent accumulation and non-coherent accumulation have been made by the system, first the method takes power difference between the direct path and the non-direct path in a same power delay profile to identify a channel; and then the result is further determined by {overscore (&#x3c4;)}/&#x3c3; difference of a LOS channel and a NLOS channel (where {overscore (&#x3c4;)} and &#x3c3; is the mean delay and the RMS delay spread of a multipath power profile, respectively). A channel is determined as a LOS channel, if the power ratio of the Maximum Path to the Local Maximum Path is greater than a threshold K, and simultaneously the arrival time difference between the First Path and said Maximum Path is less than a time interval T; otherwise it is a NLOS channel. The method is easier to implement and compatible with the present mobile communication system.

Method distinguishing line of sight (LOS) from non-line of sight (NLOS) in CDMA mobile communication system

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Shenzhen, China

Xinxi Diao