公开(公告)号：US09768827B2

公开(公告)日：2017-09-19

申请号：US15028647

申请日：2014-10-10

Applicant: Commissariat a l'energie atomique et aux energies alternatives

Inventor： Frederic Hameau ,  Gilles Masson ,  Laurent Ouvry

IPC: H04B1/7115 ,  H04B1/7183 ,  H04B1/7163 ,  H04B1/7075

CPC classification number: H04B1/7183 ,  H04B1/70758 ,  H04B1/7115 ,  H04B1/7163 ,  H04B2201/70707 ,  H04B2201/7073 ,  H04B2201/70979 ,  H04B2201/7163

Abstract: A UWB impulse receiver including an RF stage followed by a baseband processing stage. The baseband processing stage includes a Rake filter including a plurality of time fingers, each finger including an integrator of the baseband signal during an acquisition window, a control module, and a detection module estimating the received symbols from the integration results. During a synchronization phase, the control module drives respective positions of the acquisition windows associated with the different fingers, to scan at a reception interval, the RF stage only operating, in a course of the synchronization phase, during the plurality of acquisition windows.

公开(公告)号：US20130308609A1

公开(公告)日：2013-11-21

申请号：US13952399

申请日：2013-07-26

Applicant: InterDigital Technology Corporation

Inventor： Michael J. Luddy

IPC: H04W72/04

CPC classification number: H04W72/0406 ,  H04B1/7075 ,  H04B1/70753 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/708 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04L5/1446 ,  H04N1/00912 ,  H04N1/3333 ,  H04N2201/3335 ,  H04W28/20 ,  H04W72/087 ,  H04W76/10 ,  H04W88/12

Abstract: A method and subscriber unit used for communicating in voiced communications are disclosed. The method for use in a subscriber unit may include receiving, from a cellular base station, a first signal at a first data rate and a first modulation scheme, transmitting a second signal, to the cellular base station, indicative of a subscriber station capability to receive a third signal at a second date rate and a second modulation type, and receiving, from the cellular base station, based on the transmitted second signal, a third signal at the second data rate and second modulation type.

Abstract translation: 公开了一种用于在有声通信中通信的方法和用户单元。 在用户单元中使用的方法可以包括从蜂窝基站接收以第一数据速率和第一调制方案的第一信号，向蜂窝基站发送指示用户台能力的第二信号 以第二日期率和第二调制类型接收第三信号，并且从蜂窝基站接收基于所发送的第二信号的第二数据速率和第二调制类型的第三信号。

公开(公告)号：US08582623B2

公开(公告)日：2013-11-12

申请号：US12776071

申请日：2010-05-07

Applicant: Wang Paul Poon ,  Qiuzhen Zou

Inventor： Wang Paul Poon ,  Qiuzhen Zou

IPC: H04B1/707

CPC classification number: H04B1/708 ,  G01S19/30 ,  G01S19/34 ,  G01S19/37 ,  H04B1/70754 ,  H04B1/70758 ,  H04B2201/70711

Abstract: Searcher hardware is multiplexed to perform simultaneous searches in either an IS-95 CDMA mode or a GPS mode. In the IS-95 mode, the search hardware is time-multiplexed into a number of searcher time slices, each of which can generate a PN sequence to despread a data sequence. In the GPS mode, the search hardware is configured as a number of distinct GPS channels, each of which can generate a Gold code sequence for tracking a GPS signal from a particular GPS satellite. This configuration allows the searcher to perform multiple GPS signal searches simultaneously. Signal searching in both IS-95 and GPS modes is performed at significantly higher speeds compared to conventional searcher hardware. Moreover, the search hardware can be dynamically configured to operate in either the IS-95 or the GPS mode, eliminating the need for dedicated circuitry for each mode of operation.

公开(公告)号：US20100222056A1

公开(公告)日：2010-09-02

申请号：US12779712

申请日：2010-05-13

Applicant: Gengshi Wu

Inventor： Gengshi Wu

IPC: H04W4/00 ,  H04B17/00

CPC classification number: H04W48/20 ,  H04B1/0053 ,  H04B1/70758 ,  H04B1/7077 ,  H04B1/7087 ,  H04J11/0083

Abstract: The present invention discloses a method and an apparatus for searching for modes and frequencies. The method includes: obtaining signal energy of all frequency grids within a frequency range; obtaining energy of each mode on a smallest bandwidth according to the signal energy of the grids; sorting the energy on the smallest bandwidths of all modes; and accessing a specified number of frequencies and modes of the highest energy in the sorting result. With the present invention, energy on the smallest bandwidths of all modes at a frequency band is obtained and sorted and then an access mode is determined according to the sorting result. Thus the access mode to use for a specified frequency can be quickly determined so as to improve the access success rate of a terminal in the subsequent access process.

Abstract translation: 本发明公开了一种用于搜索模式和频率的方法和装置。 该方法包括：获得频率范围内所有频率网格的信号能量; 根据网格的信号能量，在最小带宽上获取每个模式的能量; 在所有模式的最小带宽上排序能量; 并在排序结果中访问指定数量的最高能量的频率和模式。 利用本发明，获得在频带上的所有模式的最小带宽上的能量并进行排序，然后根据分类结果确定访问模式。 因此，可以快速确定用于指定频率的访问模式，以便在随后的访问过程中提高终端的访问成功率。

公开(公告)号：US07756190B2

公开(公告)日：2010-07-13

申请号：US10680943

申请日：2003-10-08

Applicant: Gary Lomp ,  Fatih Ozluturk ,  Avi Silverberg

Inventor： Gary Lomp ,  Fatih Ozluturk ,  Avi Silverberg

IPC: H04B1/707

CPC classification number: H04B7/2637 ,  G06F13/374 ,  H03H17/0226 ,  H03H17/06 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/70753 ,  H04B1/70754 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/7077 ,  H04B1/708 ,  H04B1/7085 ,  H04B1/709 ,  H04B1/7093 ,  H04B1/711 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/2628 ,  H04B7/264 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04B2201/70707 ,  H04B2201/7071 ,  H04J13/00 ,  H04J13/004 ,  H04J13/0048 ,  H04J13/0077 ,  H04J13/10 ,  H04J13/107 ,  H04J13/12 ,  H04J13/16 ,  H04J2013/0037 ,  H04L1/0001 ,  H04L1/004 ,  H04L1/0042 ,  H04L1/0047 ,  H04L1/0054 ,  H04L1/0059 ,  H04L5/1446 ,  H04L25/0212 ,  H04L27/206 ,  H04L27/2332 ,  H04L2027/003 ,  H04L2027/0053 ,  H04N1/00912 ,  H04N1/3333 ,  H04N2201/3335 ,  H04W52/04 ,  H04W52/08 ,  H04W52/143 ,  H04W52/146 ,  H04W52/24 ,  H04W52/241 ,  H04W52/245 ,  H04W52/247 ,  H04W52/26 ,  H04W52/262 ,  H04W52/322 ,  H04W52/325 ,  H04W52/343 ,  H04W52/346 ,  H04W52/36 ,  H04W52/367 ,  H04W52/44 ,  H04W52/50 ,  H04W52/52 ,  H04W52/54 ,  H04W52/60 ,  Y02D10/14

Abstract: A wireless communication unit comprises circuitry configured to receive a voice data associated with a first logical channel. The circuitry further configured to receive a non-voice data associated with a second logical channel. The voice data and non-voice data carried by a wireless channel set during a time period. The wireless channel set comprises a plurality of wireless channels. The wireless channel is associated with a subscriber unit. Circuitry is configured to insert information into the non-voice data, when the non-voice data is missing in the wireless channel set during the time period.

Abstract translation: 无线通信单元包括被配置为接收与第一逻辑信道相关联的语音数据的电路。 电路还被配置为接收与第二逻辑信道相关联的非语音数据。 由一段时间内设置的无线信道携带的语音数据和非语音数据。 无线信道集合包括多个无线信道。 无线信道与用户单元相关联。 当在该时间段内设置的无线信道中的非语音数据丢失时，电路被配置为将信息插入到非语音数据中。

公开(公告)号：US07706830B2

公开(公告)日：2010-04-27

申请号：US12116263

申请日：2008-05-07

Applicant: Fatih M. Ozluturk ,  Gary R. Lomp

Inventor： Fatih M. Ozluturk ,  Gary R. Lomp

IPC: H04B7/216 ,  H04B7/00 ,  H04B1/00

CPC classification number: H04W52/36 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/70753 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/7077 ,  H04B1/708 ,  H04B7/2628 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04B2201/7071 ,  H04W52/367 ,  H04W52/50 ,  H04W52/60

Abstract: A base station for controlling transmission power during the establishment of a communication channel utilizes the reception of a short code during initial power ramp-up. The short code is a sequence for detection by the base station which has a much shorter period than a conventional access code. The ramp-up starts from a power level that is lower than the required power level for detection by the base station. The power of the short code is quickly increased until the signal is detected by the base station. Once the base station detects the short code, it transmits an indication that the short code has been detected.

Abstract translation: 在建立通信信道期间用于控制发送功率的基站在初始功率提升期间利用短码的接收。 短代码是用于基站检测的序列，其具有比常规访问码短得多的周期。 斜坡上升从低于基站检测所需功率电平的功率电平开始。 短码的功率快速增加，直到基站检测到信号。 一旦基站检测到短码，它就会发送一个指示已经检测到短码。

公开(公告)号：US07327717B2

公开(公告)日：2008-02-05

申请号：US10185354

申请日：2002-06-27

Applicant: Jörg Borowski ,  Uwe Eckhardt ,  Michael Schmidt ,  Frank Poegel ,  Menno Mennenga

Inventor： Jörg Borowski ,  Uwe Eckhardt ,  Michael Schmidt ,  Frank Poegel ,  Menno Mennenga

IPC: H04Q7/24 ,  H04B1/00 ,  H04J3/06

CPC classification number: H04L27/0014 ,  H04B1/7073 ,  H04B1/70758 ,  H04B7/0811 ,  H04L2025/0349 ,  H04L2027/0065 ,  H04L2027/0095 ,  H04W88/08

Abstract: A WLAN (Wireless Local Area Network) receiver is provided that provides at least two acquisition units and at least two tracking units. The acquisition units perform a synchronization acquisition process, and the tracking units perform a synchronization tracking process. The acquisition units are arranged for being operated sequentially while the tracking units are arranged for being operated simultaneously. In an embodiment, frequency and phase error correction may be performed separately, and those units that operate at higher sampling rates may be located before lower-rate units. The synchronization process may include data-aided as well as non data-aided algorithms.

Abstract translation: 提供了WLAN（无线局域网）接收器，其提供至少两个采集单元和至少两个跟踪单元。 采集单元执行同步捕获处理，并且跟踪单元执行同步跟踪处理。 采集单元被布置成顺序地操作，而跟踪单元被布置成同时操作。 在一个实施例中，可以分别执行频率和相位误差校正，并且以较低速率单元位于较高采样速率下工作的那些单元。 同步过程可以包括数据辅助以及非数据辅助算法。

公开(公告)号：US07304964B2

公开(公告)日：2007-12-04

申请号：US10078222

申请日：2002-02-19

Applicant: Seemi Kazmi ,  Dan Picker

Inventor： Seemi Kazmi ,  Dan Picker

IPC: H04B7/212

CPC classification number: H04W56/0085 ,  H04B1/70758 ,  H04B2201/70701 ,  H04W92/10

Abstract: Apparatus, and an associated method, performing synchronization messages to be used to synchronize operation of a mobile station with that of a base transceiver station in a cellular, or other radio communication system. The formatter of a message generator formats two or more different sync channel messages, a first of which is used by a mobile station constructed according to a pre-IS-2000 cellular communication standard, and a second of which is utilized by a mobile station constructed pursuant to the IS-2000 standard. The first-type sync channel message is an IS-2000 standard message that has been contracted to make it more compatible with older mobile stations, and has been provided with a field indicating that an additional sync message is also available. The additional sync message may be a full IS-2000 sync message, may include only selected IS-2000 fields, or may include other fields.

Abstract translation: 装置和相关联的方法，执行同步消息以用于将移动站的操作与蜂窝或其他无线电通信系统中的基站收发器的操作同步。 消息发生器的格式化器格式化两个或更多个不同的同步信道消息，第一个信道消息由根据IS-2000之前的蜂窝通信标准构建的移动站使用，其中第二个被构造的移动站利用 根据IS-2000标准。 第一类同步信道消息是已经签约的IS-2000标准消息，以使其与较旧的移动台更加兼容，并且已经提供了一个指示附加同步消息也可用的字段。 附加同步消息可以是完整的IS-2000同步消息，可以仅包括所选择的IS-2000字段，或者可以包括其他字段。

公开(公告)号：US07072380B2

公开(公告)日：2006-07-04

申请号：US09742579

申请日：2000-12-21

Applicant: Fatih M. Ozluturk ,  Gary R. Lomp ,  John Kowalski

Inventor： Fatih M. Ozluturk ,  Gary R. Lomp ,  John Kowalski

IPC: H04B1/69

CPC classification number: G06F13/374 ,  H03H17/0226 ,  H03H17/06 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/70753 ,  H04B1/70754 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/7077 ,  H04B1/708 ,  H04B1/7085 ,  H04B1/709 ,  H04B1/7093 ,  H04B1/711 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/2628 ,  H04B7/2637 ,  H04B7/264 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04B2201/70707 ,  H04B2201/7071 ,  H04J13/00 ,  H04J13/10 ,  H04J13/107 ,  H04J13/12 ,  H04J13/16 ,  H04J2013/0037 ,  H04L1/0001 ,  H04L1/004 ,  H04L1/0042 ,  H04L1/0047 ,  H04L1/0054 ,  H04L1/0059 ,  H04L5/1446 ,  H04L25/0212 ,  H04L27/206 ,  H04L27/2332 ,  H04L2027/003 ,  H04L2027/0053 ,  H04N1/00912 ,  H04N1/3333 ,  H04N2201/3335 ,  H04W52/04 ,  H04W52/08 ,  H04W52/143 ,  H04W52/146 ,  H04W52/24 ,  H04W52/241 ,  H04W52/245 ,  H04W52/247 ,  H04W52/26 ,  H04W52/262 ,  H04W52/322 ,  H04W52/325 ,  H04W52/343 ,  H04W52/346 ,  H04W52/36 ,  H04W52/367 ,  H04W52/44 ,  H04W52/50 ,  H04W52/52 ,  H04W52/54 ,  H04W52/60 ,  Y02D10/14

Abstract: A code-division-multiple-access (CDMA) system employing spread-spectrum modulation. The CDMA system has a base station (BS), and a plurality of subscriber units (SUs). The signals transmitted between the BS and SU use spread-spectrum modulation. The apparatus for maintaining control of power from an SU to a BS, comprises sending from the SU, using spread-spectrum modulation, a SU-spreading code, and detecting at the base station, the SU-spreading code from the SU. In response to detecting the SU-spreading code at the BS, a BS-spreading code is sent to the SU, using spread-spectrum modulation. At the SU, if the BS-spreading code is detected, then transmit power of the SU is reduced. If the BS-spreading code is not detected at the SU, then transmit power of the SU is increased.

Abstract translation: 采用扩频调制的码分多址（CDMA）系统。 CDMA系统具有基站（BS）和多个用户单元（SU）。 在BS和SU之间传输的信号使用扩频调制。 用于维持从SU到BS的功率控制的装置包括使用扩展频谱调制SU扩展码，以及在基站处从SU发送SU扩展码。 响应于在BS处检测到SU扩展码，使用扩频调制将SU扩展码发送到SU。 在SU中，如果检测到BS扩展码，则SU的发射功率减小。 如果在SU处未检测到BS扩展码，则SU的发射功率增加。

公开(公告)号：US20050243897A1

公开(公告)日：2005-11-03

申请号：US11178809

申请日：2005-07-11

Applicant: Gary Lomp ,  Fatih Ozluturk

Inventor： Gary Lomp ,  Fatih Ozluturk

IPC: H03K3/84 ,  G06F13/374 ,  H03H17/02 ,  H03H17/06 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/7077 ,  H04B1/708 ,  H04B1/7085 ,  H04B1/709 ,  H04B1/7093 ,  H04B1/711 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/005 ,  H04B7/216 ,  H04B7/26 ,  H04B15/00 ,  H04B17/00 ,  H04J11/00 ,  H04J13/00 ,  H04J13/10 ,  H04J13/12 ,  H04J13/16 ,  H04K1/00 ,  H04L1/00 ,  H04L5/14 ,  H04L7/00 ,  H04L7/033 ,  H04L25/02 ,  H04L27/00 ,  H04L27/20 ,  H04L27/233 ,  H04L27/30 ,  H04N1/333 ,  H04W52/04 ,  H04W52/14 ,  H04W52/24

CPC classification number: H04B7/2637 ,  G06F13/374 ,  H03H17/0226 ,  H03H17/06 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/70753 ,  H04B1/70754 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/7077 ,  H04B1/708 ,  H04B1/7085 ,  H04B1/709 ,  H04B1/7093 ,  H04B1/711 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/2628 ,  H04B7/264 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04B2201/70707 ,  H04B2201/7071 ,  H04J13/00 ,  H04J13/004 ,  H04J13/0048 ,  H04J13/0077 ,  H04J13/10 ,  H04J13/107 ,  H04J13/12 ,  H04J13/16 ,  H04J2013/0037 ,  H04L1/0001 ,  H04L1/004 ,  H04L1/0042 ,  H04L1/0047 ,  H04L1/0054 ,  H04L1/0059 ,  H04L5/1446 ,  H04L25/0212 ,  H04L27/206 ,  H04L27/2332 ,  H04L2027/003 ,  H04L2027/0053 ,  H04N1/00912 ,  H04N1/3333 ,  H04N2201/3335 ,  H04W52/04 ,  H04W52/08 ,  H04W52/143 ,  H04W52/146 ,  H04W52/24 ,  H04W52/241 ,  H04W52/245 ,  H04W52/247 ,  H04W52/26 ,  H04W52/262 ,  H04W52/322 ,  H04W52/325 ,  H04W52/343 ,  H04W52/346 ,  H04W52/36 ,  H04W52/367 ,  H04W52/44 ,  H04W52/50 ,  H04W52/52 ,  H04W52/54 ,  H04W52/60 ,  Y02D10/14

Abstract: A method and system for rapidly acquiring a spreading code, used in a code division multiple access (CDMA) system. A first long code and a second long code, with each long code having a length of N chips, are generated. The first long code is different from the second long code. The first long code and the second long code are transmitted at a first phase angle and at a second phase angle, respectively, on a carrier signal, over a communications channel using radio waves. The first long code and the second long code may be transmitted at an in-phase (I) angle and at a quadrature-phase (Q) angle, respectively, on the carrier signal. From the communications channel, an I-phase acquisition circuit and a Q-phase acquisition circuit may acquire, in parallel, the first long code and the second long code from the I-phase angle and the Q-phase angle, respectively, of the carrier signal by searching, in parallel, N/2 chips, the first long code and the second long code.

Abstract translation: 一种用于在码分多址（CDMA）系统中使用的用于快速获取扩展码的方法和系统。 生成第一长码和第二长码，其中每个长码具有N个码片的长度。 第一个长代码与第二个长代码不同。 通过使用无线电波的通信信道，第一长码和第二长码分别以载波信号的第一相位角和第二相位角发送。 第一长码和第二长码可以分别在载波信号上以同相（I）角度和正交相位（Q）角发射。 从通信信道，I相采集电路和Q相采集电路可以分别从I相位角和Q相位角并行获取第一长码和第二长码 并行地搜索N / 2个码片，第一个长码和第二个长码。