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    • 1. 发明申请
    • APPARATUS AND METHOD FOR ADAPTIVE POWER CONTROL
    • 用于自适应功率控制的装置和方法
    • WO2009120912A1
    • 2009-10-01
    • PCT/US2009/038471
    • 2009-03-26
    • QUALCOMM INCORPORATEDKANDUKURI NARAYANA, Sunil KumarSAMPATH, Hemanth
    • KANDUKURI NARAYANA, Sunil KumarSAMPATH, Hemanth
    • H04W52/36
    • H04W52/362
    • In embodiments, a first wireless device generates symbols for transmission to another wireless device. Adaptive power control is applied to the transmissions, for example, at symbol or frame boundaries. When a transmit power gain adjustment exceeds a threshold, all or part of the gain adjustment may be performed on the generated symbols before the symbols are combined in an overlap-and-add process. Part of the gain adjustment may also be performed through adjustment of the power amplifier. When the gain adjustment does not exceed the threshold, all of the gain adjustment may be performed through adjustment of the power amplifier. Performing gain adjustment before the overlap-and-add process results in a lower spectral spread of the transmitted waveform and improved bandwidth utilization efficiency. In embodiments, the power adjustment techniques are used in FDD/OFDM systems or other systems where a plurality of symbols or frames is transmitted substantially continuously.
    • 在实施例中,第一无线设备生成用于传输到另一无线设备的符号。 自适应功率控制被应用于传输,例如在符号或帧边界。 当发射功率增益调整超过阈值时,可以在符号在重叠和相加处理中组合之前对生成的符号执行全部或部分增益调整。 增益调整的一部分也可以通过功率放大器的调节来执行。 当增益调整不超过阈值时,可以通过功率放大器的调节来执行所有增益调整。 在重叠和添加过程之前执行增益调整会导致传输波形的较低频谱扩展,并提高带宽利用率。 在实施例中,功率调整技术用于FDD / OFDM系统或其中基本连续地发送多个符号或帧的其他系统。
    • 4. 发明申请
    • BIT-WIDTH MINIMIZATION SCHEME FOR WIRELESS COMMUNICATION
    • 用于无线通信的位宽最小化方案
    • WO2009120456A2
    • 2009-10-01
    • PCT/US2009035768
    • 2009-03-02
    • QUALCOMM INCKANDUKURI NARAYANA SUNIL KUMARSAMPATH HEMANTHVERMANI SAMEER
    • KANDUKURI NARAYANA SUNIL KUMARSAMPATH HEMANTHVERMANI SAMEER
    • H04L1/06H04L5/02H04L27/26
    • H04L27/0008H04B1/707H04J13/00H04L1/0071H04L5/0007H04L5/0016H04L5/0023H04L5/0048H04L25/03343H04L25/03866H04L27/0012H04L27/2626
    • A technique for generating a reduced bit-width in a signal generated by a first-type modulator in a communication apparatus that includes two distinct modulators. In particular, the communication apparatus includes a first modulator adapted to generate a first modulated signal quantified to a first bit-width, a second modulator adapted to generate a second modulated signal quantified to a second bit-width that is less than the first bit-width, and a device to generate a third modulated signal comprising a combination of the first and second modulated signals. In an exemplary implementation, the first modulator includes an OFDMA modulator, the second modulator includes a CDMA, and the combining device includes an IFFT. Additionally, an apparatus for processing a communication signal includes a tasklist cache memory having a tasklist, a processor adapted to provide a task to the tasklist, and a communication module adapted to fetch the task from the tasklist, and process the communication signal based on the retrieved task.
    • 一种用于在包括两个不同调制器的通信设备中生成由第一类型调制器生成的信号中的减小的比特宽度的技术。 特别地,通信设备包括:第一调制器,适于生成量化为第一比特宽度的第一调制信号;第二调制器,适于生成量化为小于第一比特宽度的第二比特宽度的第二调制信号; 宽度,以及用于生成包括第一和第二调制信号的组合的第三调制信号的设备。 在示例性实现中,第一调制器包括OFDMA调制器,第二调制器包括CDMA,并且组合设备包括IFFT。 另外,用于处理通信信号的设备包括具有任务列表的任务列表高速缓冲存储器,适用于向任务列表提供任务的处理器,以及适用于从任务列表提取任务的通信模块,并且基于 检索任务。
    • 6. 发明申请
    • SYSTEMS AND METHODS FOR CANCELING INTERFERENCE IN A COMMUNICATION SYSTEM
    • 用于消除通信系统中干扰的系统和方法
    • WO2009120725A3
    • 2009-11-19
    • PCT/US2009038147
    • 2009-03-24
    • QUALCOMM INCKANDUKURI NARAYANA SUNIL KUMAR
    • KANDUKURI NARAYANA SUNIL KUMAR
    • H04B1/707H04L5/00
    • H04J11/004H04L25/0204H04L25/0224H04L27/2647
    • Systems and methods for canceling interference in a communication system are described. A signal that comprises current data from a current access point and secondary data from one or more secondary access points is received. The secondary data is demodulated using one or more secondary channel estimates if a signal metric is less than a predetermined threshold. Interference in the received signal is canceled using the demodulated secondary data if the signal metric is less than the predetermined threshold. The received signal with the interference canceled is demodulated using a current channel estimate to obtain the current data. The method for interference cancellation may use the same hardware resources and processing available for receiving data from a single access point.
    • 描述了用于消除通信系统中的干扰的系统和方法。 接收包括来自当前接入点的当前数据和来自一个或多个次级接入点的次级数据的信号。 如果信号度量小于预定阈值,则使用一个或多个辅助信道估计对辅助数据进行解调。 如果信号度量小于预定阈值,则使用解调后的辅助数据来抵消接收信号中的干扰。 利用当前信道估计对接收到的具有抵消干扰的信号进行解调以获得当前数据。 用于干扰消除的方法可以使用可用于从单个接入点接收数据的相同硬件资源和处理。