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公开(公告)号:JP4782638B2
公开(公告)日:2011-09-28
申请号:JP2006220343
申请日:2006-08-11
Applicant: インターデイジタル テクノロジー コーポレーション
Inventor: ディ.ケーウェル ジョン
IPC: H04B1/7073 , H04B1/7075 , H04B1/62 , H04B1/7097 , H04L27/00
CPC classification number: H04L27/20 , H04B1/62 , H04B1/69 , H04B1/7097 , H04B1/711 , H04B2001/70724 , H04B2201/696 , H04B2201/709709 , H04L2027/0022
Abstract: This Invention provides a method for reducing transmission errors by a user equipment (UE) when transmitting a communication signal, comprising the steps of: receiving an RF communication signal at said UE; analyzing said received signal for errors; generating a correction signal (119) based upon said analysis; and correcting said communication signal using said correction signal (119) prior to transmission of said communication signal from said UE.
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公开(公告)号:US20180109285A1
公开(公告)日:2018-04-19
申请号:US15564768
申请日:2016-04-08
Applicant: NTT DOCOMO, INC.
Inventor: Kazuaki Takeda , Kazuki Takeda , Shimpei Yasukawa , Satoshi Nagata
CPC classification number: H04B1/71 , H04B1/04 , H04B2001/70724 , H04B2201/696 , H04B2201/698 , H04B2201/70707 , H04B2201/709745 , H04J11/00 , H04J13/16 , H04L1/08 , H04L1/1893 , H04L5/0016 , H04L5/0051 , H04L27/01 , H04W52/18 , H04W72/04 , H04W72/042 , H04W88/04
Abstract: The present invention is designed to reduce the decrease of spectral efficiency even when repetitious transmission is applied to communication by user terminals, in which the band to use is limited to a partial narrow band in a system band. According to one aspect of the present invention, a user terminal, in which the band to use is limited to partial narrow bands in a system band, has a receiving section that receives information related to spreading codes, a generation section that generates uplink signals, and a transmission section that repeats transmitting uplink signals in a plurality of subframes, and the generation section applies a predetermined spreading code to an uplink signal that is transmitted in part or all of the plurality of subframes, based on the information related to spreading codes.
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公开(公告)号:US09461699B2
公开(公告)日:2016-10-04
申请号:US11328791
申请日:2006-01-09
Applicant: Serge Willenegger
Inventor: Serge Willenegger
CPC classification number: H04W74/006 , H04B1/707 , H04B2201/696 , H04B2201/70701 , H04B2201/70703 , H04B2201/70724 , H04J13/0048
Abstract: In one disclosed embodiment, data information is stored in a buffer in a transmitter. The data information is transmitted on a shared channel and control information for recovering the associated data information is transmitted on a dedicated channel. The shared and dedicated channels can be, for example, different portions of the frequency band. The control information can include a spreading factor used to spread the data at the transmitter. For example, the spreading factor can be the length of the Walsh function orthogonal coding used to spread the data. The control information is received over the dedicated channel before the associated data information is received over the shared channel. The control information is then used to recover the associated data information. For example, knowing the spreading factor from the control information, the correct Walsh function can be selected to de-spread, i.e. to Walsh de-cover, the data information.
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公开(公告)号:US08488650B2
公开(公告)日:2013-07-16
申请号:US12421028
申请日:2009-04-09
Applicant: John D. Kaewell
Inventor: John D. Kaewell
IPC: H04B1/00
CPC classification number: H04L27/20 , H04B1/62 , H04B1/69 , H04B1/7097 , H04B1/711 , H04B2001/70724 , H04B2201/696 , H04B2201/709709 , H04L2027/0022
Abstract: A CDMA communication system includes a signal processor which encodes voice and nonvoice signals into data at various rates, e.g. data rates of 8 kbps, 16 kbps, 32 kbps, or 64 kbps as I and Q signals. The signal processor selects a specific data rate depending upon the type of signal, or in response to a set data rate. When the signal is received and demodulated, the baseband signal is at the chip level. Both the I and Q components of the signal are despread using the conjugate of the pn sequence used during spreading, returning the signal to the symbol level. Carrier offset correction is performed at the symbol level. A lower overall processing speed is therefore required.
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公开(公告)号:US20090196330A1
公开(公告)日:2009-08-06
申请号:US12421028
申请日:2009-04-09
Applicant: John D. Kaewell
Inventor: John D. Kaewell
IPC: H04B1/06
CPC classification number: H04L27/20 , H04B1/62 , H04B1/69 , H04B1/7097 , H04B1/711 , H04B2001/70724 , H04B2201/696 , H04B2201/709709 , H04L2027/0022
Abstract: A CDMA communication system includes a signal processor which encodes voice and nonvoice signals into data at various rates, e.g. data rates of 8 kbps, 16 kbps, 32 kbps, or 64 kbps as I and Q signals. The signal processor selects a specific data rate depending upon the type of signal, or in response to a set data rate. When the signal is received and demodulated, the baseband signal is at the chip level. Both the I and Q components of the signal are despread using the conjugate of the pn sequence used during spreading, returning the signal to the symbol level. Carrier offset correction is performed at the symbol level. A lower overall processing speed is therefore required.
Abstract translation: CDMA通信系统包括信号处理器,其以不同的速率将语音和非发音信号编码成数据,例如, 数据速率为8kbps,16kbps,32kbps或64kbps作为I和Q信号。 信号处理器根据信号的类型或响应于设定的数据速率来选择特定的数据速率。 当信号被接收和解调时,基带信号处于芯片级。 信号的I和Q分量都使用扩展期间使用的pn序列的共轭进行解扩,将信号返回到符号级。 载波偏移校正在符号级进行。 因此,需要较低的总体处理速度。
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公开(公告)号:US06985510B2
公开(公告)日:2006-01-10
申请号:US09748315
申请日:2000-12-22
Applicant: Serge Willenegger
Inventor: Serge Willenegger
CPC classification number: H04W74/006 , H04B1/707 , H04B2201/696 , H04B2201/70701 , H04B2201/70703 , H04B2201/70724 , H04J13/0048
Abstract: In one disclosed embodiment, data information is stored in a buffer in a transmitter. The data information is transmitted on a shared channel and control information for recovering the associated data information is transmitted on a dedicated channel. The shared and dedicated channels can be, for example, different portions of the frequency band. The control information can include a spreading factor used to spread the data at the transmitter. For example, the spreading factor can be the length of the Walsh function orthogonal coding used to spread the data. The control information is received over the dedicated channel before the associated data information is received over the shared channel. The control information is then used to recover the associated data information. For example, knowing the spreading factor from the control information, the correct Walsh function can be selected to de-spread, i.e. to Walsh de-cover, the data information.
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27.
公开(公告)号:US20010040914A1
公开(公告)日:2001-11-15
申请号:US09820014
申请日:2001-03-28
Inventor: John D. Kaewell
IPC: H04K001/00
CPC classification number: H04L27/20 , H04B1/62 , H04B1/69 , H04B1/7097 , H04B1/711 , H04B2001/70724 , H04B2201/696 , H04B2201/709709 , H04L2027/0022
Abstract: A digital spread spectrum communication system calculates phase and frequency error on a received signal from a communicating entity during a wireless communication and pre-corrects a signal for phase and frequency error prior to transmission to that entity.
Abstract translation: 数字扩频通信系统在无线通信期间计算来自通信实体的接收信号的相位和频率误差,并且在传输到该实体之前预校正用于相位和频率误差的信号。
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公开(公告)号:US20180317098A1
公开(公告)日:2018-11-01
申请号:US15770367
申请日:2016-10-31
Applicant: Samsung Electronics Co., Ltd.
Inventor: Seunghoon CHOI , Donghan KIM , Jinyoung OH
CPC classification number: H04W16/26 , H04B1/713 , H04B2201/696 , H04L25/0204 , H04L25/023 , H04L27/2602 , H04W92/02
Abstract: The present disclosure relates to a communication technique for converging IoT technology with 5G communication systems for supporting higher data transmission rates than 4G systems and to a system therefor. The present disclosure can be applied to intelligent services (e.g. smart home, smart building, smart city, smart car or connected car, health care, digital education, retail business, security- and safety-related services, etc.) on the basis of 5G communication technology and IoT-related technology. The method for data decoding by a terminal in a wireless communication system according to the present disclosure comprises the steps of: receiving subframes on the basis of a configuration; obtaining at least one channel phase value on the basis of available subframes, which are configured to transmit identical downlink data, among the received subframes; correcting the other channel phase value(s) with any one of said at least one obtained channel phase value as a reference value; and decoding the downlink data by means of the reference value and the corrected channel phase value(s).
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公开(公告)号:US20140334528A1
公开(公告)日:2014-11-13
申请号:US14341181
申请日:2014-07-25
Applicant: InterDigital Technology Corporation
Inventor: John D. Kaewell
CPC classification number: H04L27/20 , H04B1/62 , H04B1/69 , H04B1/7097 , H04B1/711 , H04B2001/70724 , H04B2201/696 , H04B2201/709709 , H04L2027/0022
Abstract: A CDMA communication system includes a signal processor which encodes voice and nonvoice signals into data at various rates, e.g. data rates of 8 kbps, 16 kbps, 32 kbps, or 64 kbps as I and Q signals. The signal processor selects a specific data rate depending upon the type of signal, or in response to a set data rate. When the signal is received and demodulated, the baseband signal is at the chip level. Both the I and Q components of the signal are despread using the conjugate of the pn sequence used during spreading, returning the signal to the symbol level. Carrier offset correction is performed at the symbol level. A lower overall processing speed is therefore required.
Abstract translation: CDMA通信系统包括信号处理器,其以不同的速率将语音和非发音信号编码成数据,例如, 数据速率为8kbps,16kbps,32kbps或64kbps作为I和Q信号。 信号处理器根据信号的类型或响应于设定的数据速率来选择特定的数据速率。 当信号被接收和解调时,基带信号处于芯片级。 信号的I和Q分量都使用扩展期间使用的pn序列的共轭进行解扩,将信号返回到符号级。 载波偏移校正在符号级进行。 因此,需要较低的总体处理速度。
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公开(公告)号:US20060109890A1
公开(公告)日:2006-05-25
申请号:US11328791
申请日:2006-01-09
Applicant: Serge Willenegger
Inventor: Serge Willenegger
IPC: H04B1/707
CPC classification number: H04W74/006 , H04B1/707 , H04B2201/696 , H04B2201/70701 , H04B2201/70703 , H04B2201/70724 , H04J13/0048
Abstract: In one disclosed embodiment, data information is stored in a buffer in a transmitter. The data information is transmitted on a shared channel and control information for recovering the associated data information is transmitted on a dedicated channel. The shared and dedicated channels can be, for example, different portions of the frequency band. The control information can include a spreading factor used to spread the data at the transmitter. For example, the spreading factor can be the length of the Walsh function orthogonal coding used to spread the data. The control information is received over the dedicated channel before the associated data information is received over the shared channel. The control information is then used to recover the associated data information. For example, knowing the spreading factor from the control information, the correct Walsh function can be selected to de-spread, i.e. to Walsh de-cover, the data information.
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