公开(公告)号：US6141317A

公开(公告)日：2000-10-31

申请号：US959428

申请日：1997-10-28

Applicant: Daniel J. Marchok ,  Peter J. W. Melsa ,  Richard C. Younce

Inventor： Daniel J. Marchok ,  Peter J. W. Melsa ,  Richard C. Younce

IPC: H04L5/02 ,  H04L5/14 ,  H04L27/26 ,  H04J11/00

CPC classification number: H04L27/2662 ,  H04L27/2608 ,  H04L27/2657 ,  H04L5/0046 ,  H04L5/023 ,  H04L5/1453 ,  H04L5/0007 ,  H04L5/0058 ,  H04L5/006

Abstract: A multi-point communications system having an allocated total bandwidth is set forth. The system comprises a head end unit disposed at a primary site. The head end unit includes a receiver for receiving OFDM/DMT modulated data from a plurality of remote transceivers over a predetermined number of bins from a transmission medium. The receiver of the head end unit receives OFDM/DMT modulated data corresponding to a first data stream from a first one of the plurality of remote transceivers over one or more bins of a first subset of the predetermined number of bins and OFDM/DMT data corresponding to a second data stream from a second one of the plurality of remote transceivers over one or more bins of a second subset of the predetermined number of bins. The head end unit and each of the first and second transceivers can receive and/or transmit in at least a given X QAM mode or Y QAM mode. The head end unit monitors actual bandwidth usage of the total allocated bandwidth and uses the measured bandwidth usage to alter the QAM modes used for communications within the system.

公开(公告)号：US5710761A

公开(公告)日：1998-01-20

申请号：US458048

申请日：1995-05-31

Applicant: Robert Earl Scott

Inventor： Robert Earl Scott

IPC: H04L1/00 ,  H04L5/14

CPC classification number: H04L5/1453 ,  H04L1/004

Abstract: A modem dynamically selects the type of error-control negotiation sequence as a function of a negotiated parameter of the physical layer. In one embodiment of the invention, a modem selects between error-control negotiation sequences as a function of the type of modulation negotiated in the physical layer. In particular, the modem has at least two type of error-control negotiation sequences to select from: "LAPM or Disconnect," and "LAPM, MNP or Buffer." When the modem negotiates a V.32 or higher modulation, the modem uses the "LAPM or Disconnect" error control negotiation sequence. However, when the modem negotiates a V.22 bis or lower modulation, the modem uses the "LAPM, MNP or Buffer" error control sequence.

Abstract translation: 调制解调器根据物理层的协商参数动态选择错误控制协商序列的类型。 在本发明的一个实施例中，调制解调器根据在物理层中协商的调制类型的不同，在差错控制协商序列之间进行选择。 特别地，调制解调器具有至少两种类型的错误控制协商序列，以从：“LAPM或Disconnect”和“LAPM，MNP或缓冲器”中进行选择。 当调制解调器协商V.32或更高调制时，调制解调器使用“LAPM或断开连接”错误控制协商序列。 然而，当调制解调器协商V.22 bis或更低调制时，调制解调器使用“LAPM，MNP或缓冲”错误控制序列。

公开(公告)号：US20180092095A1

公开(公告)日：2018-03-29

申请号：US15612762

申请日：2017-06-02

Applicant: QUALCOMM Incorporated

Inventor： Wei Zeng ,  Wanshi Chen ,  Tingfang Ji ,  Peter Gaal

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/0453 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0064 ,  H04L5/0091 ,  H04L5/1453 ,  H04L27/0012 ,  H04L27/2636 ,  H04L27/2646 ,  H04L27/2666 ,  H04W72/042 ,  H04W88/06

Abstract: Techniques are described that provide for waveform selection for uplink (UL) and/or downlink (DL) wireless transmissions based on one or more factors associated with the wireless transmission, a transmitter that is to transmit the wireless transmission, or combinations thereof. UL and DL transmissions may use one of a number of different waveforms, such as single-carrier waveforms that use a single carrier for information transmission of a wireless channel, and multi-carrier waveforms that use multiple carriers at different frequencies to transmit some of the bits on each channel. Multi-carrier transmission waveforms or single-carrier waveforms may be selected for wireless transmissions based on a bandwidth allocated for the transmissions, a capability of a transmitter that is to transmit the transmissions, or combinations thereof.

公开(公告)号：US09838779B2

公开(公告)日：2017-12-05

申请号：US14411564

申请日：2013-06-13

Applicant: Tendyron Corporation

Inventor： Dongsheng Li

IPC: H04R3/00 ,  H04L5/14 ,  H04L27/00

CPC classification number: H04R3/00 ,  H04L5/1453 ,  H04L27/0008 ,  H04L27/0012 ,  H04R2420/07 ,  H04R2499/11

Abstract: A method, system and apparatus for audio communication modulation mode self-adaptation, and an electronic signature token are provided. The method includes generating a first audio detection frame; if the first audio detection frame is correct, selecting the modulation mode supported by the second device corresponding to the identifier of the modulation mode supported by the second device from pre-stored modulation modes supported by the second device according to the identifier of modulation mode supported by the second device carried in the first audio detection frame, and generating a first audio detection feedback frame; if the first audio detection feedback frame is correct, demodulating an audio data frame from the second device using a demodulation mode corresponding to the modulation mode supported by the second device, and demodulating an audio data frame from the first device using a demodulation mode corresponding to the modulation mode supported by the first device.

公开(公告)号：US09742605B2

公开(公告)日：2017-08-22

申请号：US15246324

申请日：2016-08-24

Applicant: Kamilo Feher

Inventor： Kamilo Feher

IPC: H04L27/26 ,  G06F19/00 ,  H04W64/00 ,  H04W88/06 ,  A61B5/00 ,  H04B1/709 ,  H04L27/20 ,  H04W4/02 ,  H04W4/22 ,  H04B7/26 ,  H04L1/00 ,  H04L5/14 ,  H04B1/707 ,  H04L5/00 ,  H04W12/06 ,  H04B1/10 ,  H04B1/69 ,  H04B7/04 ,  H04M7/00 ,  A61B5/01 ,  A61B5/024 ,  A61B5/145 ,  H04J11/00 ,  H04W88/02

CPC classification number: H04L27/2602 ,  A61B5/0015 ,  A61B5/0022 ,  A61B5/01 ,  A61B5/024 ,  A61B5/14532 ,  G06F19/00 ,  G16H10/60 ,  G16H15/00 ,  H04B1/1036 ,  H04B1/69 ,  H04B1/707 ,  H04B1/709 ,  H04B7/04 ,  H04B7/18504 ,  H04B7/2628 ,  H04B2201/70715 ,  H04B2201/70716 ,  H04J11/00 ,  H04L1/0003 ,  H04L5/0007 ,  H04L5/1453 ,  H04L27/2017 ,  H04L27/2071 ,  H04L27/2627 ,  H04L27/2649 ,  H04M7/006 ,  H04W4/023 ,  H04W4/025 ,  H04W4/90 ,  H04W12/06 ,  H04W64/00 ,  H04W88/02 ,  H04W88/06 ,  Y02A90/26

Abstract: Mobile Networks using Orthogonal Frequency Division Multiplex (OFDM) and or spread spectrum modulation and demodulation techniques process in mobile devices spread spectrum signals into OFDM signals. A first mobile device receives and demodulates a spread spectrum modulated signal into a baseband spread spectrum signal and processes the baseband spread spectrum signal into a first OFDM signal. The first OFDM signal is transmitted to a second mobile device. In the second mobile device the received first OFDM signal is demodulated and processed into a second OFDM signal. The second OFDM signal is transmitted in the mobile network. Alternatively, the first mobile device receives, instead of a spread spectrum signal a modulated OFDM signal. The mobile device has a motion detector which generates a motion detector signal for control of the mobile device. The mobile device has a heart rate sensor and measures the heart rate.

公开(公告)号：US20160352415A1

公开(公告)日：2016-12-01

申请号：US15164644

申请日：2016-05-25

Applicant: Bala SUBRAMANIAM ,  Matt BUTEHORN

Inventor： Bala SUBRAMANIAM ,  Matt BUTEHORN

IPC: H04B7/185 ,  H04L5/14 ,  H04L5/00

CPC classification number: H04B7/18528 ,  H04B7/18517 ,  H04B7/18578 ,  H04B7/2125 ,  H04L5/0048 ,  H04L5/1453

Abstract: A method and apparatus for providing half-duplex communications for a Very Small Aperture Terminal (VSAT) operating on a continuous received stream is disclosed. The method includes: decoding the continuous received stream to establish synchronization with the continuous received stream; locating, in the continuous received stream, a time plan including a receiving timeslot and a transmitting timeslot; demodulating the continuous received stream by adapting to a timing and frequency variation of the continuous received stream in the receiving timeslot, freewheeling the adapting of the continuous received stream during the transmitting timeslot, and resuming the adapting of the continuous received stream when the transmitting timeslot ends; stopping a receiving of the continuous received stream during the transmitting timeslot; and transmitting from the VSAT during the transmitting timeslot. The freewheeling includes saving a signal acquisition parameter at the start of the transmitting timeslot and restoring the saved signal acquisition parameter at the end of the transmitting timeslot.

Abstract translation: 公开了一种用于为连续接收流操作的极小孔径终端（VSAT）提供半双工通信的方法和装置。 该方法包括：解码连续接收流以建立与连续接收流的同步; 在连续接收流中定位包括接收时隙和发送时隙的时间计划; 通过适应接收时隙中的连续接收流的定时和频率变化来解调连续接收流，在传输时隙期间续航连续接收流的适配，并且当传输时隙结束时恢复适配连续接收流 ; 在发送时隙停止对连续接收流的接收; 并在发送时隙中从VSAT发送。 续流包括在发送时隙开始时保存信号采集参数，并在发送时隙结束时恢复保存的信号采集参数。

公开(公告)号：US20160285586A1

公开(公告)日：2016-09-29

申请号：US15173704

申请日：2016-06-05

Applicant: General Access Solutions, LTD.

Inventor： Paul F. Struhsaker ,  Robert R. Nelson ,  Kirk J. Griffin ,  Russell C. McKown ,  Michael S. Eckert

IPC: H04L1/00 ,  H04W72/04

CPC classification number: H04J3/1694 ,  H01Q1/246 ,  H01Q25/00 ,  H04B7/022 ,  H04B7/0617 ,  H04J3/14 ,  H04L1/0005 ,  H04L1/0006 ,  H04L1/0009 ,  H04L1/0017 ,  H04L1/004 ,  H04L1/0042 ,  H04L1/007 ,  H04L1/0083 ,  H04L1/16 ,  H04L5/1453 ,  H04L5/1469 ,  H04L12/10 ,  H04L12/403 ,  H04L12/66 ,  H04L2001/0098 ,  H04L2001/125 ,  H04M3/42 ,  H04M2207/206 ,  H04M2242/04 ,  H04M2242/06 ,  H04W16/28 ,  H04W28/04 ,  H04W28/18 ,  H04W72/0446 ,  H04W74/00 ,  H04W84/042 ,  H04W84/12 ,  H04W84/14 ,  H04W88/021 ,  H04W88/08

Abstract: A wireless network is provided that includes a base station and subscriber stations that communicate with the base station using radio frequency (RF) time division duplex (TDD) signaling. The base station may establish medium access control (MAC) connections with each station. The base station monitors communications with the stations and, in accordance, assigns stations or MAC connections to modulation groups. The base station transmits signals on MAC connections or to stations in a modulation group in adjacent TDD slots within a TDD frame. The base station may receive access requests from the stations, evaluate traffic requirements for the stations, and determine a longest downlink portion for the stations. The base station then allocates downlink and uplink portions of a TDD frame according to the length of the longest downlink portion.

Abstract translation: 提供了一种无线网络，其包括使用射频（RF）时分双工（TDD）信令与基站通信的基站和用户台。 基站可以与每个站建立媒体访问控制（MAC）连接。 基站监视与站的通信，并且根据将站或MAC连接分配给调制组。 基站在TDD帧内的相邻TDD时隙的MAC连接或调制组中的站发送信号。 基站可以从站接收访问请求，评估站的业务需求，并且确定站的最长下行链路部分。 然后，基站根据最长下行链路部分的长度分配TDD帧的下行链路和上行链路部分。

公开(公告)号：US20160269213A1

公开(公告)日：2016-09-15

申请号：US15030682

申请日：2015-01-28

Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)

Inventor： Daniel Larsson ,  Jung-Fu Cheng ,  Yu Yang ,  Meng Wang

IPC: H04L27/34 ,  H04L1/00

CPC classification number: H04L27/3405 ,  H04B7/0632 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/1812 ,  H04L1/1819 ,  H04L1/1845 ,  H04L5/1453 ,  H04L27/0008 ,  H04L27/0012 ,  H04L27/2627 ,  H04W84/042

Abstract: According to some embodiments, a method of decoding a transport block in a wireless network element comprises receiving a first transmission of a transport block. The transport block is modulated according to a first modulation coding scheme. The method further comprises determining a number of soft channel bits SB1 in the first transmission of the transport block based at least on a category type of a wireless device. The category type of wireless device is capable of supporting the first modulation coding scheme and a second modulation coding scheme of a different order than the first modulation scheme and both the first and second modulation schemes are associated with the same number of soft channel bits and soft buffer size. The method further comprises storing SB1 soft channel bits of the first transmission of the transport block in a soft buffer.

Abstract translation: 根据一些实施例，一种对无线网元中的传输块进行解码的方法包括接收传输块的第一传输。 传输块根据第一调制编码方案进行调制。 该方法还包括至少基于无线设备的类别类型来确定传输块的第一传输中的软通道位SB1的数量。 无线设备的类别类型能够支持与第一调制方案不同的第一调制编码方案和第二调制编码方案，并且第一和第二调制方案都与相同数量的软信道比特和软 缓冲区大小。 该方法还包括将传输块的第一传输的SB1软信道比特存储在软缓冲器中。

公开(公告)号：US09432976B2

公开(公告)日：2016-08-30

申请号：US14663036

申请日：2015-03-19

Applicant: FUJITSU LIMITED

Inventor： Hiroyuki Seki

IPC: H04L12/28 ,  H04W72/04 ,  H04W52/26 ,  H04L1/00 ,  H04W72/00 ,  H04B7/04 ,  H04L5/14 ,  H04L1/18

CPC classification number: H04W72/0406 ,  H04B7/0413 ,  H04L1/0001 ,  H04L1/0006 ,  H04L1/0025 ,  H04L1/0029 ,  H04L1/003 ,  H04L1/0075 ,  H04L1/1812 ,  H04L5/1453 ,  H04W52/262 ,  H04W72/00 ,  H04W72/042

Abstract: A method used by a terminal in a wireless communication system, the method includes: receiving a control channel transmitted from a base station with use of a control channel format selected from among a plurality of control channel formats, each including modulation scheme information, according to whether Multiple Input Multiple Output (MIMO) transmission is applied or not, and wherein a number of bits indicating a modulation scheme included in a control channel format to be selected when the MIMO transmission is applied is greater than that included in a control channel format to be selected when the MIMO transmission is not applied.

Abstract translation: 一种终端在无线通信系统中使用的方法，所述方法包括：使用从多个控制信道格式中选择的控制信道格式接收从基站发送的控制信道，每个控制信道格式包括调制方案信息，根据 是否应用多输入多输出（MIMO）传输，并且其中指示在应用MIMO传输时要选择的控制信道格式中包括的调制方案的比特数大于包括在控制信道格式 当不应用MIMO传输时被选择。

公开(公告)号：US09397724B1

公开(公告)日：2016-07-19

申请号：US15007466

申请日：2016-01-27

Applicant: Kamilo Feher

Inventor： Kamilo Feher

IPC: H04B1/709 ,  H04B7/26

CPC classification number: H04L27/2602 ,  A61B5/0015 ,  A61B5/0022 ,  A61B5/01 ,  A61B5/024 ,  A61B5/14532 ,  G06F19/00 ,  G16H10/60 ,  G16H15/00 ,  H04B1/1036 ,  H04B1/69 ,  H04B1/707 ,  H04B1/709 ,  H04B7/04 ,  H04B7/18504 ,  H04B7/2628 ,  H04B2201/70715 ,  H04B2201/70716 ,  H04J11/00 ,  H04L1/0003 ,  H04L5/0007 ,  H04L5/1453 ,  H04L27/2017 ,  H04L27/2071 ,  H04L27/2627 ,  H04L27/2649 ,  H04M7/006 ,  H04W4/023 ,  H04W4/025 ,  H04W4/90 ,  H04W12/06 ,  H04W64/00 ,  H04W88/02 ,  H04W88/06 ,  Y02A90/26

Abstract: Mobile transmitter-receiver (transceiver) unit for receiving and demodulating a video Orthogonal Frequency Division Multiplexed (OFDM) modulated signal. Modulator and transmitter for modulating and transmitting a filtered spread spectrum video baseband signal. Spread spectrum video signal has cross-correlated in-phase and quadrature-phase baseband signals. Receiver for receiving and demodulating a modulated signal into a demodulated location finder baseband signal. Converter for converting a photo camera generated signal into a converted Code Division Multiple Access (CDMA) photo camera baseband signal. Combiner for combining demodulated location finder baseband signal with converted CDMA baseband signal. Modulator and transmitter for modulation and transmission of combined signal. Touch screen control and fingerprint authentication of mobile device.

Abstract translation: 用于接收和解调视频正交频分复用（OFDM）调制信号的移动发射机（收发机）单元。 用于调制和发送滤波后的扩频视频基带信号的调制器和发射机。 扩频视频信号具有交叉相位的同相和正交相位基带信号。 用于接收和解调调制信号到解调位置取景器基带信号的接收机。 用于将照相机生成的信号转换成转换的码分多址（CDMA）照相机基带信号的转换器。 用于将解调的定位器基带信号与转换的CDMA基带信号组合的组合器。 调制器和发射机用于调制和传输组合信号。 移动设备的触摸屏控制和指纹认证。