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    • 1. 发明授权
    • Method, apparatus and computer program to efficiently acquire signals in a cognitive radio environment
    • 用于在认知无线电环境中有效地采集信号的方法,装置和计算机程序
    • US08059694B2
    • 2011-11-15
    • US12075511
    • 2008-03-11
    • Jari JunellNiko Kiukkonen
    • Jari JunellNiko Kiukkonen
    • H04B1/00H04L27/06
    • H04B1/713H04L5/0033H04L27/0008
    • Signal instances are detected from within a long period of a received radiofrequency RF signal envelope, grouped according to signal level, and periodicities are determined among the grouped signal instances. Periodicity of one of the groups is matched to a known periodicity, and a frequency domain is estimated at a time instance derived from the matched periodicity. If an expected frequency pattern is found that occupies the derived time instance in the estimated frequency domain, then a receiver is synchronized to a candidate signal that lies within the frequency pattern. Then content of the candidate signal is decoded and that content is used to access a cognitive radio system (e.g., register to the system, start the normal operation in the network such as spectrum detection and/or transmission in a traffic channel, etc.).
    • 从接收到的射频RF信号包络的长时间内检测信号实例,根据信号电平分组,并且在分组的信号实例之间确定周期。 将一个组的周期与已知的周期性匹配,并且在从匹配的周期性导出的时间实例估计频域。 如果发现在估计频域中占据导出的时间实例的预期频率模式,则接收机与位于频率模式内的候选信号同步。 然后解码候选信号的内容,并且该内容被用于接入认知无线电系统(例如,向系统注册,开始网络中的正常操作,例如业务信道中的频谱检测和/或传输等) 。
    • 5. 发明申请
    • Method for avoiding interference from a cellular transmitter to the 2.4/5GHz ISM band
    • 用于避免从蜂窝发射机到2.4 / 5GHz ISM频带的干扰的方法
    • US20070165754A1
    • 2007-07-19
    • US11332172
    • 2006-01-17
    • Niko KiukkonenJari Junell
    • Niko KiukkonenJari Junell
    • H03D1/04
    • H04L1/0001H04B1/715H04B2001/7154H04L1/0015
    • A method, terminal, and computer program are disclosed to reduce radio interference in a wireless communications device having a combination of a wireless telephone unit, such as a GSM cellular phone, and a short range wireless communications unit, such as a WLAN communications unit or a Bluetooth communications unit. An interference avoidance subsystem in the wireless communications device is connected between the GSM frequency hopping logic and the Bluetooth frequency hopping logic. Bluetooth frequency hopping information and time domain operation information are input from the Bluetooth frequency hopping logic to the interference avoidance subsystem. GSM frequency hopping information and time domain operation information are input from the GSM frequency hopping logic to the interference avoidance subsystem. The interference avoidance subsystem then uses this input data to calculate the interference probability between co-existing Bluetooth received signals and GSM transmitted signals. The interference avoidance subsystem then compares the calculated interference probability with the required Bluetooth packet error rate limit for the current application. If the interference probability exceeds the required Bluetooth packet error rate limit, the interference avoidance subsystem sends a signal to the Bluetooth frequency hopping logic to change the Bluetooth frequencies.
    • 公开了一种方法,终端和计算机程序,以减少具有无线电话单元(例如GSM蜂窝电话)和诸如WLAN通信单元的短距离无线通信单元的组合的无线通信设备中的无线电干扰,或 一个蓝牙通信单元。 无线通信设备中的干扰避免子系统连接在GSM跳频逻辑和蓝牙跳频逻辑之间。 蓝牙跳频信息和时域操作信息从蓝牙跳频逻辑输入到干扰避免子系统。 GSM跳频信息和时域操作信息从GSM跳频逻辑输入到干扰避免子系统。 干扰避免子系统然后使用该输入数据来计算共存的蓝牙接收信号与GSM发射信号之间的干扰概率。 然后,干扰避免子系统将所计算的干扰概率与当前应用的所需蓝牙分组错误率限制进行比较。 如果干扰概率超过了所需的蓝牙分组错误率限制,则干扰避免子系统向蓝牙跳频逻辑发送信号以改变蓝牙频率。
    • 8. 发明申请
    • Method, apparatus and computer program to efficiently acquire signals in a cognitive radio environment
    • 用于在认知无线电环境中有效地采集信号的方法,装置和计算机程序
    • US20090232189A1
    • 2009-09-17
    • US12075511
    • 2008-03-11
    • Jari JunellNiko Kiukkonen
    • Jari JunellNiko Kiukkonen
    • H04B1/713H04L27/06
    • H04B1/713H04L5/0033H04L27/0008
    • Signal instances are detected from within a long period of a received radiofrequency RF signal envelope, grouped according to signal level, and periodicities are determined among the grouped signal instances. Periodicity of one of the groups is matched to a known periodicity, and a frequency domain is estimated at a time instance derived from the matched periodicity. If an expected frequency pattern is found that occupies the derived time instance in the estimated frequency domain, then a receiver is synchronized to a candidate signal that lies within the frequency pattern. Then content of the candidate signal is decoded and that content is used to access a cognitive radio system (e.g., register to the system, start the normal operation in the network such as spectrum detection and/or transmission in a traffic channel, etc.).
    • 从接收到的射频RF信号包络的长时间内检测信号实例,根据信号电平分组,并且在分组的信号实例之间确定周期。 将一个组的周期与已知的周期性匹配,并且在从匹配的周期性导出的时间实例估计频域。 如果发现在估计频域中占据导出的时间实例的预期频率模式,则接收机与位于频率模式内的候选信号同步。 然后解码候选信号的内容,并且该内容被用于接入认知无线电系统(例如,向系统注册,开始网络中的正常操作,例如业务信道中的频谱检测和/或传输等) 。
    • 9. 发明申请
    • METHOD, APPARATUS, AND COMPUTER PROGRAM PRODUCT FOR WIRELESS NETWORK DISCOVERY BASED ON GEOGRAPHICAL LOCATION
    • 基于地理位置的无线网络发现的方法,设备和计算机程序产品
    • US20130023295A1
    • 2013-01-24
    • US13184643
    • 2011-07-18
    • Mika KasslinJari JunellMiika Laaksonen
    • Mika KasslinJari JunellMiika Laaksonen
    • H04B15/00H04B7/00
    • H04W48/14H04W16/14
    • Method, apparatus, and computer program product embodiments are disclosed for wireless resource sharing between heterogeneous wireless networks to enable coexistence of secondary networks. An example embodiment of the invention includes a method, comprising: receiving, at an apparatus or entity, information associated with a wireless network; determining, by the apparatus or entity, a geographic communication area and one or more geographic interference areas associated with the wireless network based on the received information; transmitting, by the apparatus or entity, a message to a destination to register the wireless network and the determined geographic communication area and one or more geographic interference areas associated with the wireless network; and receiving, by the apparatus or entity, confirmation of the registering of the wireless network at the destination and information associated with zero or more wireless networks that at least one of potentially interfere with the determined geographic communication area associated with the wireless network, or potentially experience interference caused by the determined one or more interference areas associated with the wireless network.
    • 公开了用于异构无线网络之间的无线资源共享的方法,装置和计算机程序产品实施例,以实现次级网络的共存。 本发明的示例实施例包括一种方法,包括:在设备或实体处接收与无线网络相关联的信息; 由所述装置或实体基于所接收的信息确定地理通信区域和与所述无线网络相关联的一个或多个地理干扰区域; 由设备或实体向目的地发送消息以注册无线网络和所确定的地理通信区域以及与无线网络相关联的一个或多个地理干扰区域; 以及由所述装置或实体接收在所述目的地处的所述无线网络的注册的确认以及与零个或更多个无线网络相关联的信息,所述无线网络潜在地干扰所确定的与所述无线网络相关联的地理通信区域,或潜在地干扰 经历由确定的与无线网络相关联的一个或多个干扰区域引起的干扰。