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1. 发明申请

WO2009049530A1 一种基于码扩正交频分多址和智能天线的无线通信系统审中-公开
公开(公告)号：WO2009049530A1
公开(公告)日：2009-04-23
申请号：PCT/CN2008/072616
申请日：2008-10-08
申请人：北京信威通信技术股份有限公司 , 徐广涵 , 李航 , 黄俊
发明人：徐广涵 , 李航 , 黄俊
IPC分类号： H04L5/02
CPC分类号： H04L5/0019 , H04B7/0617 , H04B7/068 , H04L25/0204
摘要： A time division duplexing wireless communication system based on Code Spreading-Orthogonal Frequency Division Multiple Access CS - OFDMA and intelligent antenna includes: an antenna array, a multi-channel transceiver, a space processor, a demodulator, a L2 processor and a modulator. The present system can eliminate inter-symbol interference caused by spread spectrum in wideband data transmission in CDMA system, resist frequency selective fading and adjacent cell interference, and be propitious to the reliable transmission of narrowband voice and wideband data and co-frequency networking

2. 发明申请

WO2009043309A1 无线通信系统中的测距方法和装置审中-公开
公开(公告)号：WO2009043309A1
公开(公告)日：2009-04-09
申请号：PCT/CN2008/072577
申请日：2008-09-27
申请人：北京信威通信技术股份有限公司 , 黄俊 , 李航 , 徐广涵
发明人：黄俊 , 李航 , 徐广涵
IPC分类号： H04Q7/38
CPC分类号： H04W56/0005 , H04W64/006
摘要： A method and an apparatus for range measurement in wireless communication system are provided by the embodiments of the present invention. The frame structure of the said wireless communication system comprises one or more downlink service time slot(s), the guard period from downlink to uplink and one or more uplink service time slot(s). The method includes: calculating the starting time of the first uplink service time slot of the said frame structure, and setting the starting time as the fiducial time; generating the range measurement signal; employing the fiducial time to subtract the sum of the time required for sending the range measurement signal and the reference delay, thereby obtaining the time when the terminal starts sending the range measurement signal; employing the fiducial time to subtract the length of a dedicated range measurement time slot, thereby obtaining the time when the base station starts receiving the range measurement signal; receiving and processing the said range measurement signal. The various interferences will be minimized and the optimal performance of range measurement will be achieved through the range measurement method and apparatus which are provided by the embodiments of the present invention.

3. 发明申请

WO2009049536A1 无线系统中传输语音的方法及装置审中-公开
公开(公告)号：WO2009049536A1
公开(公告)日：2009-04-23
申请号：PCT/CN2008/072628
申请日：2008-10-09
申请人：北京信威通信技术股份有限公司 , 李航 , 徐广涵 , 强永全 , 周晖 , 马强
发明人：李航 , 徐广涵 , 强永全 , 周晖 , 马强
IPC分类号： H04L12/56
CPC分类号： H04L1/1835 , H04L1/0001 , H04L1/1607 , H04L45/00 , H04L47/26 , H04L47/34 , H04L47/70 , H04L47/76
摘要： The present invention aims to provide a method and device for voice transmission in radio system. The method consists of: the transmission end sets the sequence number of playing order for the original coded voice packets, and makes channel coding of the coded voice packets to constitute voice session packets; the transmitting end and the receiving end set up voice session or session mixed of voice and data, and allocate channels for these sessions dynamically; the transmitting end sends the newly arrived voice session packets, delayed voice session packets, retransmitted voice session packets, data session packets and control command packets based on the predefined priority; the receiving end receives the voice session packets and checks, if it makes sure that some voice session packet is lost, it will send NACK packet that includes sequence number of the lost voice session packet to the transmitting end to indicate the transmitting end to retransmit the session packet; the receiving end is the terminal, witch puts the correctly received voice session packets into jitter buffer controller. The present invention can satisfy QoS of real time service such as voice, and besides, can improve frequency efficiency and reliability of real time voice service in radio system with multiple service transmission.

4. 发明申请

WO2009049535A1 无线通信系统中无线资源的分配方法及装置审中-公开
公开(公告)号：WO2009049535A1
公开(公告)日：2009-04-23
申请号：PCT/CN2008/072624
申请日：2008-10-09
申请人：北京信威通信技术股份有限公司 , 李航 , 黄其华 , 徐广涵 , 周晖 , 范辉
发明人：李航 , 黄其华 , 徐广涵 , 周晖 , 范辉
IPC分类号： H04W72/00
CPC分类号： H04W72/08 , H04W28/18 , H04W48/08 , H04W72/082 , H04W72/085
摘要： A method for allocating wireless resource and a device thereof are provided, wherein the method for allocating wireless resource includes: in accordance with the downlink channel characteristics, the downlink interference characteristics and the requirement of the terminal downlink bandwidth which are reported by a terminal and determined based on the resource block, a base station determining a set of the downlink sub-channels and the transmission parameters associated with the set of the downlink sub-channels for a terminal; and sending to the terminal the determined set of downlink sub-channels and the transmission parameters associated with the set of the downlink sub-channels. With the above method and device, the wireless resource could be allocated and the transmission parameters could be determined in accordance with the requirement of the user traffic and the conditions of the system channels, and the performance and efficiency of the system could be improved greatly.

5. 发明申请

WO2009043312A1 应用于OFDMA无线通信系统中的信号传输方法及装置审中-公开
公开(公告)号：WO2009043312A1
公开(公告)日：2009-04-09
申请号：PCT/CN2008/072580
申请日：2008-09-27
申请人：北京信威通信技术股份有限公司 , 李航 , 徐广涵
发明人：李航 , 徐广涵
IPC分类号： H04J11/00
CPC分类号： H04L5/0007 , H04L5/0042 , H04L5/0044 , H04L5/006 , H04L5/0064 , H04L5/0087 , H04L5/0096 , H04L25/03343 , H04L2025/03802
摘要： Embodiments of the invention provide signal transmission method and apparatus for OFDMA wireless communication system to increase robustness of signal transmission and resist time-frequency dispersion. The signal transmission method for OFDMA wireless communication system of the embodiments of the invention comprises converting a symbol vector of size to a modulated signal vector of size according to a load factor of feedback of receiver, where N is a known value, L and N are both natural numbers larger than 1, and N is larger than L or equal to L; the load factor is a ratio of L/N; mapping the modulated signal vector of size to N time-frequency meshes; converting the N time-frequency meshes to signal waves and sending them to receiver.

6. 发明申请

WO2009071009A1 自动发现网元设备的方法、装置及系统审中-公开
公开(公告)号：WO2009071009A1
公开(公告)日：2009-06-11
申请号：PCT/CN2008/072850
申请日：2008-10-27
申请人：华为技术有限公司 , 卢绍辉 , 李航
发明人：卢绍辉 , 李航
IPC分类号： H04L12/56
CPC分类号： H04L41/12
摘要： A method for discovering network element devices automatically is disclosed in the embodiments of the present invention, which includes the following steps: distributing IP address via the address distributing server to a network element device which is accessed newly; obtaining IP address of the network element device by a network managing device by interacting with the address distributing server, and transmitting a querying request to the network element device according to the obtained IP address to obtain the related information of the network element device itself. A system for discovering network element automatically is also disclosed in the present invention, which includes the network managing device and the address distributing server. The method and system of the embodiments of the present invention distribute IP address via the address distributing server to the network element device which is accessed newly, obtain information of the network element device by the network managing device by interacting with the address distributing server, to realize the automatical discovery of network element devices by the network managing system, and thus it is further realized that the network managing device adds and manages the network element device automatically. In addition, the scheme can be applied to a plurality of network structures, and can realize the remoteness and centralization of the managing network element devices to a higher extent.

7. 发明申请

WO2013075403A1 基于动力学方法的物质表面性质参数测定分析系统及方法审中-公开
公开(公告)号：WO2013075403A1
公开(公告)日：2013-05-30
申请号：PCT/CN2012/070635
申请日：2012-01-20
申请人：西南大学 , 李睿 , 李航 , 刘新敏 , 李振轮 , 侯捷 , 朱华玲 , 吴劳生
发明人：李睿 , 李航 , 刘新敏 , 李振轮 , 侯捷 , 朱华玲 , 吴劳生
IPC分类号： G01R19/00 , G01R29/24 , G01R29/08 , G01R29/12 , G01N27/26 , G01N33/00
CPC分类号： G01N27/26 , G01R29/24
摘要：基于动力学方法的物质表面性质参数测定分析系统及方法。该系统包括样品处理系统和检测系统，样品处理系统包括反应器（3）、待测液收集器（5）和待测液盛液器（6），检测系统包括检测电极（13）、浓度与活度运算器、动力学数据处理器、表面性质运算模块和结果输出模块。该方法将待测物经过电解质溶液处理，按设定的时间间隔测量反应后的待测液体的活度，并通过动力学数据处理器和表面性质运算模块进行处理，从而获得待测物质的表面性能参数。本发明通过采用离子交换的动力学方法来克服测定过程中反应平衡时间长、平衡不易确定和m值的准确标定不易实现的困难，物质表面性质的五个参数测定仅仅需要由动力学数据得到的线性回归方程的截距和斜率两个参数计算，表面电荷总量也可以直接测定。

8. 发明申请

WO2011079612A1 一种链路自适应方法及装置审中-公开
公开(公告)号：WO2011079612A1
公开(公告)日：2011-07-07
申请号：PCT/CN2010/074869
申请日：2010-06-30
申请人：中兴通讯股份有限公司 , 张庆宏 , 李航
发明人：张庆宏 , 李航
IPC分类号： H04W28/08
CPC分类号： H04L1/0021 , H04L1/0003 , H04L1/0009 , H04L1/20

9. 发明申请

WO2009043311A1 OFDMA系统中的时频码扩方法和装置审中-公开
公开(公告)号：WO2009043311A1
公开(公告)日：2009-04-09
申请号：PCT/CN2008/072579
申请日：2008-09-27
申请人：北京信威通信技术股份有限公司 , 李航
发明人：李航
IPC分类号： H04L27/26
CPC分类号： H04L5/0016 , H04L27/2634 , H04L27/2647
摘要： A time-frequency spreading method in OFDMA system is provided. The method includes: the transmission message is transformed to one or more modulation signal vector, and every bit of the transmission message is spread to all vector elements of a modulation signal vector; mapping one or more modulation signal vector to the set of time-frequency grids, and in OFDMA time-frequency plane, the two grids to which any two vector elements in every modulation signal vector are mapped have not the same time and frequency locations. In addition, the time-frequency spreading apparatus in OFDMA system is provided.

10. 发明申请

WO2011017920A1 一种流量控制方法、装置及终端审中-公开
公开(公告)号：WO2011017920A1
公开(公告)日：2011-02-17
申请号：PCT/CN2010/071131
申请日：2010-03-18
申请人：华为终端有限公司 , 陶志东 , 靳林方 , 龚树强 , 周陶陶 , 孔令贺 , 李航 , 方毅 , 占奇志 , 和永全
发明人：陶志东 , 靳林方 , 龚树强 , 周陶陶 , 孔令贺 , 李航 , 方毅 , 占奇志 , 和永全
IPC分类号： H04L29/08 , H04L12/56 , H02H5/04
CPC分类号： H04W52/0225 , H04L69/32 , Y02D70/1222 , Y02D70/1262 , Y02D70/144 , Y02D70/146 , Y02D70/22

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