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    • 1. 发明授权
    • Methods and apparatus for communicating using a gateway communications device having alert generation capability
    • 使用具有警报生成能力的网关通信设备进行通信的方法和装置
    • US08274994B2
    • 2012-09-25
    • US12487805
    • 2009-06-19
    • Richard DynarskiVladimir Parizhsky
    • Richard DynarskiVladimir Parizhsky
    • H04J3/22H04M1/00G06F15/16
    • H04W88/16H04L67/04H04L69/18H04W52/0274H04W68/00Y02D70/142Y02D70/144Y02D70/22
    • Methods and a gateway apparatus for facilitating communication between communications devices which support different communications protocols are described. The gateway device may receive an identifier of interest from a first device which supports a first communications protocol but not a second communications protocol. The gateway monitors signals corresponding to the second communications protocol to detect signals corresponding to the identifier of interest. An externally perceivable alert is generated by the gateway device when a signal corresponding to the identifier of interest is detected. Communications is established between the first communications device and a second communications device with the gateway device performing protocol conversion to the extent required. The first device may power down its interface after sending the identifier of interest to the gateway and then power up the interface in response to sensing of the alert or input from a user responding to the alert.
    • 描述了用于促进支持不同通信协议的通信设备之间的通信的方法和网关装置。 网关设备可以从支持第一通信协议但不是第二通信协议的第一设备接收感兴趣的标识符。 网关监视与第二通信协议相对应的信号,以检测与感兴趣标识符对应的信号。 当检测到与感兴趣的标识符相对应的信号时,网关设备产生外部可感知的警报。 在第一通信设备和第二通信设备之间建立通信,网关设备在所需程度上执行协议转换。 在将感兴趣的标识符发送到网关之后,第一设备可以将其接口断电,然后响应于响应于该警报的来自用户的警报或输入的响应来加电接口。
    • 2. 发明授权
    • Automatic gain control (AGC) for OFDM-based transmission in a wireless communication network
    • 在无线通信网络中用于基于OFDM的传输的自动增益控制(AGC)
    • US08107565B2
    • 2012-01-31
    • US12360907
    • 2009-01-28
    • Junyi LiVladimir ParizhskyFrank A. LaneAleksandar JovicicYing Wang
    • Junyi LiVladimir ParizhskyFrank A. LaneAleksandar JovicicYing Wang
    • H04L27/08
    • H04L27/2647H03G3/3078
    • Techniques for performing automatic gain control (AGC) at a receiver are described. The receiver may receive an OFDM-based symbol composed of a cyclic prefix and a useful portion. The receiver may scale the OFDM-based symbol with an initial receiver gain, adjust the initial receiver gain based on the cyclic prefix, apply the adjusted receiver gain prior to the useful portion, and process the useful portion to recover at least one signal sent by at least one transmitter. The receiver may select the initial receiver gain, e.g., based on a predicted received power level for the at least one transmitter, a pattern of different receiver gains, etc. The receiver may apply the initial receiver gain at the start of the OFDM-based symbol. The receiver may measure the power of a set of samples in the cyclic prefix and may adjust the receiver gain based on the measured power and a target power.
    • 描述了在接收机处执行自动增益控制(AGC)的技术。 接收机可以接收由循环前缀和有用部分组成的基于OFDM的符号。 接收机可以利用初始接收机增益来缩放基于OFDM的符号,基于循环前缀调整初始接收机增益,在有用部分之前应用经调整的接收机增益,并处理有用部分以恢复至少一个由 至少一个发射机。 接收机可以例如基于至少一个发射机的预测接收功率电平,不同接收机增益的模式等来选择初始接收机增益。接收机可以在基于OFDM的开始处应用初始接收机增益 符号。 接收机可以测量循环前缀中的一组样本的功率,并且可以基于测量的功率和目标功率来调整接收机增益。
    • 4. 发明授权
    • Method of symbol timing synchronization in communication systems
    • 通信系统中符号定时同步的方法
    • US07751448B2
    • 2010-07-06
    • US10090871
    • 2002-03-05
    • Rajiv LaroiaJunyi LiVladimir Parizhsky
    • Rajiv LaroiaJunyi LiVladimir Parizhsky
    • H04J3/07H04L7/00H04B15/00
    • H04W56/0045H04L5/023H04L7/0334H04L27/2646H04L27/2662H04W56/0005
    • Symbol timing synchronization in OFDM communication systems where multiple wireless terminals communicate with a single base station is described. Base station transmitter and receiver symbol timing is fixed. Each wireless terminal operates to independently adjust its transmitter timing. Transmitter timing synchronization at the wireless terminal is slaved to the terminal's receiver timing synchronization. Each wireless terminal first corrects its receiver symbol timing based on a signal received from the base station. The wireless terminal then adjusts its transmitter symbol timing as a function of its receiver symbol timing. When the receiver symbol timing is to be advanced or delayed by some amount, the transmitter symbol timing is also advanced or delayed, respectively, by the same, or substantially the same, amount. Symbol timing adjustment can be made by adding or deleting digital samples from the first or last symbol in a dwell.
    • 描述了多个无线终端与单个基站通信的OFDM通信系统中的符号定时同步。 基站发射机和接收机的符号定时是固定的。 每个无线终端操作以独立地调整其发射机定时。 在无线终端的发射机定时同步被切换到终端的接收机定时同步。 每个无线终端首先基于从基站接收到的信号来校正其接收符号定时。 然后,无线终端根据其接收机符号定时调整其发射机符号定时。 当接收机符号定时被提前或延迟一定量时,发射机符号定时也分别前进或延迟相同或基本相同的量。 符号定时调整可以通过在驻留中从第一个或最后一个符号添加或删除数字样本来进行。
    • 5. 发明申请
    • Methods and apparatus related to resource allocation in a wireless communications system
    • 与无线通信系统中的资源分配有关的方法和装置
    • US20080014951A1
    • 2008-01-17
    • US11486810
    • 2006-07-14
    • Rajiv LaroiaVladimir ParizhskyJunyi LiSathyadev Venkata Uppala
    • Rajiv LaroiaVladimir ParizhskyJunyi LiSathyadev Venkata Uppala
    • H04Q7/20
    • H04W72/042H04W74/04
    • Methods and apparatus of efficient communication of resource allocation are described. A base station transmits a resource assignment message, e.g., a state transition message, to a wireless terminal including a first part, e.g., a base station assigned wireless terminal On state identifier, identifying a resource being assigned and a second part, e.g., an ON state mask, identifying a portion of the resource allocated to the wireless terminal. The same resource allocation message information also communicates one of a plurality of different modes of commanded On state operation. The resource allocation message structure supports flexible allocation of available resources facilitating a resource to be partitioned differently at different times accommodating current needs. A predetermined recurring channel structure and association of segments with particular mask bits, facilitates allocated control segments to be used unambiguously without the need to include an overhead wireless terminal identifier field with the control report bits being communicated.
    • 描述资源分配高效通信的方法和装置。 基站将资源分配消息(例如,状态转换消息)发送到包括第一部分的无线终端,例如基站分配的无线终端开状态标识符,识别被分配的资源和第二部分,例如, ON状态掩码,识别分配给无线终端的资源的一部分。 相同的资源分配消息信息还传送多个不同模式的命令开状态操作中的一个。 资源分配消息结构支持可用资源的灵活分配,便于在适应当前需求的不同时刻对不同的分区进行分区。 预定的重复频道结构和段与特定屏蔽位的关联有助于分配的控制段被明确使用,而不需要包括传送控制报告位的开销无线终端标识符字段。
    • 8. 发明授权
    • Method of tone allocation for tone hopping sequences
    • 音调跳频序列的音调分配方法
    • US07212564B2
    • 2007-05-01
    • US10174144
    • 2002-06-18
    • Vladimir ParizhskyJunyi Li
    • Vladimir ParizhskyJunyi Li
    • H04B1/00
    • H04W16/12H04B1/7143H04L5/0039H04L5/023H04W16/02H04W72/044H04W72/0453
    • Methods and apparatus for allocating tones for communications purposes in adjoining cells of an OFDM system are described. Tones used in each cell are allocated to tone hopping sequences according to a tone to tone hopping sequence allocation function. Different cells use different tone to tone hopping sequence allocation functions to minimize the number of collisions between hopping sequences of neighboring cells. Tone hopping sequence to communications channel allocation functions are used to allocate tone hopping sequences to communications channels. Communications channels are used by wireless terminals, e.g., mobile nodes, to transmit data. Over time, a wireless terminal uses the tones included in the tone hopping sequences corresponding to communications channels it is authorized to use. Accordingly, tones are assigned to communications devices by a multi-function, e.g., two level, mapping operation.
    • 描述了用于在OFDM系统的相邻小区中为通信目的分配音调的方法和装置。 每个单元中使用的音调根据音调到音调跳频序列分配功能被分配给音频跳频序列。 不同的小区使用不同的音调到音调跳频序列分配功能来最小化相邻小区的跳频序列之间的冲突次数。 对通信信道分配功能的音频跳频序列用于向通信信道分配音频跳频序列。 无线终端(例如,移动节点)使用通信信道来发送数据。 随着时间的推移,无线终端使用与被授权使用的通信信道相对应的音频跳频序列中包括的音调。 因此,通过多功能,例如两级映射操作,将音调分配给通信设备。