公开(公告)号：US09112471B1

公开(公告)日：2015-08-18

申请号：US14218996

申请日：2014-03-19

申请人： Nitin Jain ,  Gopikrishna Charipadi

发明人： Nitin Jain ,  Gopikrishna Charipadi

IPC分类号： H04L27/08 ,  H03G3/30

CPC分类号： H03G3/3036 ,  H03G3/3052

摘要： A gain control system for a gain stage of a wireless communication system includes a gain control module and a mode selection module. The gain control module is operable in automatic gain control (AGC) and manual gain control (MGC) modes. The mode selection module checks the presence of first user-data in the first sub-frame based on a received signal strength indication (RSSI) value and/or a decibel amplitude level relative to full scale (dBFS) value, the presence of second user-data in a second sub-frame subsequent to the first sub-frame based on an advance information, calculates an estimated signal power level, and configures the gain control module in one of the AGC and MGC modes. Based on the mode, the gain control module provides a gain value to the gain stage.

摘要翻译： 用于无线通信系统的增益级的增益控制系统包括增益控制模块和模式选择模块。 增益控制模块可在自动增益控制（AGC）和手动增益控制（MGC）模式下工作。 模式选择模块基于接收信号强度指示（RSSI）值和/或相对于满量程（dBFS）值的分贝幅度水平来检查第一子帧中的第一用户数据的存在，第二用户的存在 基于提前信息在第一子帧之后的第二子帧中计算估计信号功率电平，并将增益控制模块配置为AGC和MGC模式之一。 基于该模式，增益控制模块向增益级提供增益值。

公开(公告)号：US08768400B2

公开(公告)日：2014-07-01

申请号：US13061659

申请日：2009-06-25

申请人： Gopikrishna Charipadi ,  John Yearsley Bromell

发明人： Gopikrishna Charipadi ,  John Yearsley Bromell

IPC分类号： H04W52/04

CPC分类号： H04W56/0035

摘要： A communication unit comprises a receiver for receiving radio frequency (RF) signals from at least one wireless serving communication unit, and signal processing logic module arranged to decode information within the received RF signals is the at least one wireless serving communication unit. The signal processing logic module is further arranged to decode transmit power information in a received RF signal from the at least one wireless serving communication unit, and determine from the decoded transmit power information whether a transmission from the at least one wireless serving communication unit is suitable for use as a timing reference. If it is determined that the transmission from the at least one wireless serving communication unit is suitable for use as a timing reference, the communication unit synchronizes an operating frequency to the received RF signal of the at least one wireless serving communication unit.

摘要翻译： 通信单元包括用于从至少一个无线服务通信单元接收射频（RF）信号的接收机，以及被布置为对所接收的RF信号内的信息进行解码的信号处理逻辑模块是至少一个无线服务通信单元。 所述信号处理逻辑模块还被配置为对来自所述至少一个无线服务通信单元的所接收的RF信号中的发射功率信息进行解码，并根据所解码的发射功率信息确定来自所述至少一个无线服务通信单元的传输是否合适 用作时间参考。 如果确定来自至少一个无线服务通信单元的传输适合用作定时参考，则通信单元将工作频率与所接收的至少一个无线服务通信单元的RF信号同步。

公开(公告)号：US20110275402A1

公开(公告)日：2011-11-10

申请号：US13061659

申请日：2009-06-25

申请人： Gopikrishna Charipadi ,  John Yearsley Bromell

发明人： Gopikrishna Charipadi ,  John Yearsley Bromell

IPC分类号： H04W52/04

CPC分类号： H04W56/0035

摘要： A communication unit comprises a receiver for receiving radio frequency (RF) signals from at least one wireless serving communication unit, and signal processing logic module arranged to decode information within the received RF signals is the at least one wireless serving communication unit. The signal processing logic module is further arranged to decode transmit power information in a received RF signal from the at least one wireless serving communication unit, and determine from the decoded transmit power information whether a transmission from the at least one wireless serving communication unit is suitable for use as a timing reference. If it is determined that the transmission from the at least one wireless serving communication unit is suitable for use as a timing reference, the communication unit synchronises an operating frequency to the received RF signal of the at least one wireless serving communication unit.

摘要翻译： 通信单元包括用于从至少一个无线服务通信单元接收射频（RF）信号的接收机，以及被布置为对所接收的RF信号内的信息进行解码的信号处理逻辑模块是至少一个无线服务通信单元。 所述信号处理逻辑模块还被配置为对来自所述至少一个无线服务通信单元的所接收的RF信号中的发射功率信息进行解码，并根据所解码的发射功率信息确定来自所述至少一个无线服务通信单元的传输是否合适 用作时间参考。 如果确定来自至少一个无线服务通信单元的传输适合用作定时参考，则通信单元将工作频率与所接收的至少一个无线服务通信单元的RF信号进行同步。

公开(公告)号：US20160119887A1

公开(公告)日：2016-04-28

申请号：US14523957

申请日：2014-10-27

申请人： Gopikrishna Charipadi ,  Ankush Jain ,  Maneesh Gupta ,  Saurabh Mishra

发明人： Gopikrishna Charipadi ,  Ankush Jain ,  Maneesh Gupta ,  Saurabh Mishra

IPC分类号： H04W56/00 ,  H04W74/00 ,  H04J13/22 ,  H04W72/08 ,  H04J13/18 ,  H04J13/00 ,  H04W74/08 ,  H04W72/04

CPC分类号： H04W56/001 ,  H04J13/0062 ,  H04J13/22 ,  H04J2013/0096

摘要： A base station and method of synchronizing with a user equipment (UE) in a cell of the base station. The base station signals to the UE an indication relating to a subset of preambles chosen for synchronization with the cell from a set of preambles derivable from one or more given root sequences. The subset of preambles is chosen to provide an increased cell radius compared to the cell radius achievable if the specified full set of preambles for random access procedures was generated from the given root sequences using a given cyclic shift value.

摘要翻译： 一种与基站的小区中的用户设备（UE）同步的基站和方法。 基站向UE发送与从一个或多个给定根序列可推导的一组前导码中选择用于与小区同步的前导码子集的指示。 如果使用给定的循环移位值从给定的根序列生成用于随机接入过程的指定的完整的一组前导码，则选择前导码的子集来提供与可实现的小区半径相比增加的小区半径。

公开(公告)号：US20110077035A1

公开(公告)日：2011-03-31

申请号：US12863846

申请日：2008-12-15

申请人： Gopikrishna Charipadi ,  James Edward Brereton Harrow

发明人： Gopikrishna Charipadi ,  James Edward Brereton Harrow

IPC分类号： H04B7/00

CPC分类号： H04B7/2675 ,  H03B27/00

摘要： A communication unit is capable of communicating in a wireless communication network. The communication unit comprises a receiver for receiving downlink timing signals from a plurality of serving wireless communication units; a frequency synchronizing circuit operably coupled to the receiver for synchronizing an operating frequency of the communication unit to a serving wireless communication unit of the plurality of serving wireless communication units. Control logic is capable of controlling the frequency synchronizing circuit to adjust the operating frequency of the communication unit. The control logic is arranged to distinguish between macro cell transmissions and femto cell transmissions and in response thereto selectively use or reject timing signals from the plurality of serving wireless communication units in adjusting the operating frequency of the wireless communication unit.

摘要翻译： 通信单元能够在无线通信网络中进行通信。 通信单元包括用于从多个服务无线通信单元接收下行链路定时信号的接收机; 频率同步电路，其可操作地耦合到所述接收机，用于将所述通信单元的工作频率同步到所述多个服务无线通信单元中的服务无线通信单元。 控制逻辑能够控制频率同步电路来调整通信单元的工作频率。 控制逻辑被设置为区分宏小区传输和毫微微小区传输，并且响应于此，在调整无线通信单元的工作频率时选择性地使用或拒绝来自多个服务无线通信单元的定时信号。

公开(公告)号：US09491758B2

公开(公告)日：2016-11-08

申请号：US14681047

申请日：2015-04-07

申请人： Ajay Sharma ,  Gopikrishna Charipadi ,  Loksiva Paruchuri

发明人： Ajay Sharma ,  Gopikrishna Charipadi ,  Loksiva Paruchuri

IPC分类号： H04W72/04 ,  H04W88/08 ,  H04L5/00

CPC分类号： H04W72/0446 ,  H04L5/0053 ,  H04L27/2655 ,  H04W56/0005 ,  H04W56/0045 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0453 ,  H04W88/08

摘要： A radio-frequency (RF) transceiver for aligning a time offset (TO) of RF signals transmitted to the RF transceiver by a user equipment (UE) includes first and second processors and first and second system memories. The first processor provides values of a cool-off period, a reset interval, a filter period, a first filter, and a primary threshold to the second processor. The second processor generates a second filter value, first and second threshold values, an instantaneous TO value, and a TO value. The second processor transmits a default TO value and a modified TO value as the TO value to the first processor during first and second time periods, respectively. The first processor generates a control signal based on the TO value. The second processor transmits the modified TO value to the UE based on the control signal.

摘要翻译： 用于对准由用户设备（UE）发射到RF收发器的RF信号的时间偏移（TO）的射频（RF）收发器包括第一和第二处理器以及第一和第二系统存储器。 第一处理器向第二处理器提供冷静期，复位间隔，过滤周期，第一过滤器和主要阈值的值。 第二处理器产生第二滤波器值，第一和第二阈值，瞬时T0值和TO值。 第二处理器分别在第一和第二时间段期间向第一处理器发送默认TO值和修改的TO值作为TO值。 第一处理器基于TO值产生控制信号。 第二处理器基于控制信号将修改的TO值发送给UE。

公开(公告)号：US20160302194A1

公开(公告)日：2016-10-13

申请号：US14681047

申请日：2015-04-07

申请人： Ajay Sharma ,  Gopikrishna Charipadi ,  Loksiva Paruchuri

发明人： Ajay Sharma ,  Gopikrishna Charipadi ,  Loksiva Paruchuri

IPC分类号： H04W72/04

CPC分类号： H04W72/0446 ,  H04L5/0053 ,  H04L27/2655 ,  H04W56/0005 ,  H04W56/0045 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0453 ,  H04W88/08

摘要： A radio-frequency (RF) transceiver for aligning a time offset (TO) of RF signals transmitted to the RF transceiver by a user equipment (UE) includes first and second processors and first and second system memories. The first processor provides values of a cool-off period, a reset interval, a filter period, a first filter, and a primary threshold to the second processor. The second processor generates a second filter value, first and second threshold values, an instantaneous TO value, and a TO value. The second processor transmits a default TO value and a modified TO value as the TO value to the first processor during first and second time periods, respectively. The first processor generates a control signal based on the TO value. The second processor transmits the modified TO value to the UE based on the control signal.

摘要翻译： 用于对准由用户设备（UE）发射到RF收发器的RF信号的时间偏移（TO）的射频（RF）收发器包括第一和第二处理器以及第一和第二系统存储器。 第一处理器向第二处理器提供冷静期，复位间隔，过滤周期，第一过滤器和主要阈值的值。 第二处理器产生第二滤波器值，第一和第二阈值，瞬时T0值和TO值。 第二处理器分别在第一和第二时间段期间向第一处理器发送默认TO值和修改的TO值作为TO值。 第一处理器基于TO值产生控制信号。 第二处理器基于控制信号将修改的TO值发送给UE。

公开(公告)号：US08219103B2

公开(公告)日：2012-07-10

申请号：US12863846

申请日：2008-12-15

申请人： Gopikrishna Charipadi ,  James Edward Brereton Harrow

发明人： Gopikrishna Charipadi ,  James Edward Brereton Harrow

IPC分类号： H04W40/00

CPC分类号： H04B7/2675 ,  H03B27/00

摘要： A communication unit is capable of communicating in a wireless communication network. The communication unit comprises a receiver for receiving timing signals from a plurality of serving wireless communication units; a frequency synchronizing circuit operably coupled to the receiver for synchronizing an operating frequency of the communication unit to a serving wireless communication unit of the plurality of serving wireless communication units Control logic is capable of controlling the frequency synchronizing circuit to adjust an operating frequency of the communication unit. The control logic is arranged to distinguish between macro cell transmissions and femto cell transmissions and in response thereto selectively use or reject timing signals from the plurality of serving wireless communication units in adjusting the operating frequency of the wireless communication unit.

摘要翻译： 通信单元能够在无线通信网络中进行通信。 通信单元包括用于从多个服务无线通信单元接收定时信号的接收机; 频率同步电路，其可操作地耦合到所述接收机，用于将所述通信单元的工作频率同步到所述多个服务无线通信单元中的服务无线通信单元。 控制逻辑能够控制频率同步电路来调整通信单元的工作频率。 控制逻辑被设置为区分宏小区传输和毫微微小区传输，并且响应于此，在调整无线通信单元的工作频率时选择性地使用或拒绝来自多个服务无线通信单元的定时信号。