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公开(公告)号:US20130170531A1
公开(公告)日:2013-07-04
申请号:US13342258
申请日:2012-01-03
申请人: Victor Adut , Gregory M. Agami , Yun H. Kim , Wei Chuan Ma
发明人: Victor Adut , Gregory M. Agami , Yun H. Kim , Wei Chuan Ma
IPC分类号: H04B17/00
CPC分类号: H03H17/0628 , H03H17/0275
摘要: A system includes a polyphase multirate filter and a controller which, responsive to detecting a data stream: measures a current phase relationship between a current resampling filter input clock signal and a current multirate output clock signal; identifies, based on a mapping of the measured phase relationship within a pre-generated quantized mapping table, an initial polyphase filter coefficient index corresponding to the measured phase relationship; selects, based on the initial polyphase filter coefficient index identified, a corresponding polyphase filter component from within the multirate filter; configures the multirate filter to pass data from the data stream through the corresponding polyphase filter component to generate an initial output data sample; updates the initial polyphase filter coefficient index to a calculated next polyphase filter coefficient index value, in response to a request for generation of a next output data sample; and self-corrects the multirate filter responsive to a pre-identified error condition.
摘要翻译: 系统包括多相多速率滤波器和控制器,其响应于检测数据流:测量当前重采样滤波器输入时钟信号和当前多速率输出时钟信号之间的当前相位关系; 基于所测量的相位关系在预先生成的量化映射表内的映射来识别对应于所测量的相位关系的初始多相滤波器系数指数; 基于所识别的初始多相滤波器系数索引,选择来自多速率滤波器内的相应多相滤波器组件; 配置多速率滤波器以将来自数据流的数据通过相应的多相滤波器组件生成初始输出数据样本; 响应于产生下一个输出数据样本的请求,将初始多相滤波器系数索引更新为计算的下一个多相滤波器系数索引值; 并响应于预先识别的错误条件自我校正多速率滤波器。
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公开(公告)号:US08693601B2
公开(公告)日:2014-04-08
申请号:US13342258
申请日:2012-01-03
申请人: Victor Adut , Gregory M. Agami , Yun H. Kim , Wei Chuan Ma
发明人: Victor Adut , Gregory M. Agami , Yun H. Kim , Wei Chuan Ma
IPC分类号: H04B1/10
CPC分类号: H03H17/0628 , H03H17/0275
摘要: A system includes a polyphase multirate filter and a controller which, responsive to detecting a data stream: measures a current phase relationship between a current resampling filter input clock signal and a current multirate output clock signal; identifies, based on a mapping of the measured phase relationship within a pre-generated quantized mapping table, an initial polyphase filter coefficient index corresponding to the measured phase relationship; selects, based on the initial polyphase filter coefficient index identified, a corresponding polyphase filter component from within the multirate filter; configures the multirate filter to pass data from the data stream through the corresponding polyphase filter component to generate an initial output data sample; updates the initial polyphase filter coefficient index to a calculated next polyphase filter coefficient index value, in response to a request for generation of a next output data sample; and self-corrects the multirate filter responsive to a pre-identified error condition.
摘要翻译: 系统包括多相多速率滤波器和控制器,其响应于检测数据流:测量当前重采样滤波器输入时钟信号和当前多速率输出时钟信号之间的当前相位关系; 基于所测量的相位关系在预先生成的量化映射表内的映射来识别对应于所测量的相位关系的初始多相滤波器系数指数; 基于所识别的初始多相滤波器系数索引,选择来自多速率滤波器内的相应多相滤波器组件; 配置多速率滤波器以将来自数据流的数据通过相应的多相滤波器组件生成初始输出数据样本; 响应于产生下一个输出数据样本的请求,将初始多相滤波器系数索引更新为计算的下一个多相滤波器系数索引值; 并响应于预先识别的错误条件自我校正多速率滤波器。
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公开(公告)号:US20140198757A1
公开(公告)日:2014-07-17
申请号:US14216912
申请日:2014-03-17
IPC分类号: H04W56/00
CPC分类号: H04W56/0045 , H04W56/003
摘要: A method that implements a timing advance for an uplink communication from a user equipment (UE) comprises: selecting at least one subframe; reducing a duration of at least one selected symbol of each of the at least one subframe to generate at least one reduced duration subframe; replacing a remaining portion of payload data of each of the at least one selected symbol with a pre-selected replacement value; by-passing each of the at least one selected symbol during pre-transmission processing of the at least one reduced duration subframe; processing any remaining symbols of the at least one reduced duration subframe, such that a processing time of the remaining symbols of the at least one reduced duration subframe is reduced by at least the value of the timing advance; and transmitting the at least one reduced duration subframe via the uplink communication to the base station.
摘要翻译: 实现来自用户设备(UE)的上行链路通信的定时提前的方法包括:选择至少一个子帧; 减少所述至少一个子帧中的每一个的至少一个所选符号的持续时间以生成至少一个缩短的持续时间子帧; 用预选择的替换值替换所述至少一个所选符号中的每一个的有效载荷数据的剩余部分; 在所述至少一个缩短持续时间子帧的预传输处理期间,旁路所述至少一个所选符号中的每一个; 处理所述至少一个减少持续时间子帧的任何剩余符号,使得所述至少一个减少持续时间子帧的剩余符号的处理时间至少减少所述定时提前的值; 以及经由所述上行链路通信将所述至少一个缩短持续时间子帧发送到所述基站。
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公开(公告)号:US08718102B2
公开(公告)日:2014-05-06
申请号:US13326550
申请日:2011-12-15
CPC分类号: H04W56/0045 , H04W56/003
摘要: A method that implements a timing advance for an uplink communication from a user equipment (UE) comprises: selecting at least one subframe; reducing a duration of at least one selected symbol of each of the at least one subframe to generate at least one reduced duration subframe; replacing a remaining portion of payload data of each of the at least one selected symbol with a pre-selected replacement value; by-passing each of the at least one selected symbol during pre-transmission processing of the at least one reduced duration subframe; processing any remaining symbols of the at least one reduced duration subframe, such that a processing time of the remaining symbols of the at least one reduced duration subframe is reduced by at least the value of the timing advance; and transmitting the at least one reduced duration subframe via the uplink communication to the base station.
摘要翻译: 实现来自用户设备(UE)的上行链路通信的定时提前的方法包括:选择至少一个子帧; 减少所述至少一个子帧中的每一个的至少一个所选符号的持续时间以生成至少一个缩短的持续时间子帧; 用预选择的替换值替换所述至少一个所选符号中的每一个的有效载荷数据的剩余部分; 在所述至少一个缩短持续时间子帧的预传输处理期间,旁路所述至少一个所选符号中的每一个; 处理所述至少一个减少持续时间子帧的任何剩余符号,使得所述至少一个减少持续时间子帧的剩余符号的处理时间至少减少所述定时提前的值; 以及经由所述上行链路通信将所述至少一个缩短持续时间子帧发送到所述基站。
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公开(公告)号:US20130156018A1
公开(公告)日:2013-06-20
申请号:US13326550
申请日:2011-12-15
IPC分类号: H04W92/00
CPC分类号: H04W56/0045 , H04W56/003
摘要: A method that implements a timing advance for an uplink communication from a user equipment (UE) comprises: selecting at least one subframe; reducing a duration of at least one selected symbol of each of the at least one subframe to generate at least one reduced duration subframe; replacing a remaining portion of payload data of each of the at least one selected symbol with a pre-selected replacement value; by-passing each of the at least one selected symbol during pre-transmission processing of the at least one reduced duration subframe; processing any remaining symbols of the at least one reduced duration subframe, such that a processing time of the remaining symbols of the at least one reduced duration subframe is reduced by at least the value of the timing advance; and transmitting the at least one reduced duration subframe via the uplink communication to the base station.
摘要翻译: 实现来自用户设备(UE)的上行链路通信的定时提前的方法包括:选择至少一个子帧; 减少所述至少一个子帧中的每一个的至少一个所选符号的持续时间以生成至少一个缩短的持续时间子帧; 用预选择的替换值替换所述至少一个所选符号中的每一个的有效载荷数据的剩余部分; 在所述至少一个缩短持续时间子帧的预传输处理期间,旁路所述至少一个所选符号中的每一个; 处理所述至少一个减少持续时间子帧的任何剩余符号,使得所述至少一个减少持续时间子帧的剩余符号的处理时间至少减少所述定时提前的值; 以及经由所述上行链路通信将所述至少一个缩短持续时间子帧发送到所述基站。
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