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1. 发明申请

US20230140420A1 PARTIAL RESPONSE RECEIVER 有权
公开(公告)号：US20230140420A1
公开(公告)日：2023-05-04
申请号：US17978468
申请日：2022-11-01
申请人： Rambus Inc.
发明人： Vladimir M. Stojanovic , Andrew C. Ho , Anthony Bessios , Bruno W. Garlepp , Grace Tsang , Mark A. Horowitz , Jared L. Zerbe , Jason C. Wei
IPC分类号： H04L25/03 , H04L25/497 , H04L7/027 , H04L25/06
摘要： A signaling system is described. The signaling system comprises a transmit device, a receive device including a partial response receive circuit, and a signaling path coupling the transmit device and the receive device. The receive device observes an equalized signal from the signaling path, and includes circuitry to use feedback from the most recent previously resolved symbol to sample a currently incoming symbol. The transmit device equalizes transmit data to transmit the equalized signal, by applying weighting based on one or more data values not associated with the most recent previously resolved symbol value.

2. 发明授权

US11641292B2 Decision feedback equalizer and a device including the same 有权
公开(公告)号：US11641292B2
公开(公告)日：2023-05-02
申请号：US17392742
申请日：2021-08-03
申请人： SAMSUNG ELECTRONICS CO., LTD.
发明人： Kihwan Seong , Hyoungjoong Kim , Woongki Min
IPC分类号： H04B3/04 , H04L25/03
摘要： A decision feedback equalizer including: a first input latch configured to generate a first output signal from first data received by the first input latch, wherein the first input latch includes: a first sub-circuit configured to receive the first data and a reference voltage, compare the first data and the reference voltage, and generate first internal signals having different transition timings according to a result of the comparison between the first data and the reference voltage; and a second sub-circuit configured to receive, as first feedback, a second output signal, which corresponds to second data received by the first latch earlier than the first data, and generate the first output signal, which compensates for a difference between the transition timings of the first internal signals, based on the first feedback.

3. 发明授权

US11641256B2 Grouping and use of short sequence signals 有权
公开(公告)号：US11641256B2
公开(公告)日：2023-05-02
申请号：US17962758
申请日：2022-10-10
申请人： ZTE Corporation
发明人： Chunli Liang , Shuqiang Xia , Zhisong Zuo , Chuangxin Jiang
IPC分类号： H04L5/00 , H04J13/00 , H04L25/03 , H04L27/26 , H04W72/21
摘要： New sequences have been proposed and/or adopted for short Physical Uplink Control Channel communications between base stations and UEs. In an exemplary embodiment, a UE communicates with a base station based on sequence groups that include the new sequences, where the new sequences are allocated to different sequence groups based, at least in part, on correlations with other existing sequences included in individual sequence groups.

4. 发明申请

US20230124786A1 METHOD AND APPARATUS FOR PROCESSING SIGNALS IN A COMMUNICATION SYSTEM 有权
公开(公告)号：US20230124786A1
公开(公告)日：2023-04-20
申请号：US17908677
申请日：2021-02-25
申请人： Samsung Electronics Co., Ltd.
发明人： Chen QIAN , Di SU , Peng LIN , Chuang ZHANG
IPC分类号： H04B1/525 , H04L25/02 , H04L25/03
摘要： The present disclosure provides a method and an apparatus for self-interference cancellation, a terminal and a base station are disclosed. The method includes truncating a signal based on a detection window, where the signal comprises a receive signal and a self-interference signal which is associated with a transmit signal, and a length of the detection window is less than a symbol length, performing self-interference channel estimation to obtain an estimation of a self-interference channel, based on the truncated signal and a first reference signal which is carried by the transmit signal and used for self-interference channel estimation, where the first reference signal has a comb structure in frequency domain, and performing self-interference cancellation based on the transmit signal and the estimation of the self-interference channel. The method can reduce the influence on the accuracy of self-interference channel estimation due to inter-symbol interference caused by timing misalignment. And, the present disclosure provides a method and device for transmitting a first physical signal in a wireless communication system, the method including: mapping a sequence of each antenna port for the first physical signal to a same plurality of subcarriers on same one or more OFDM symbols based on a frequency-domain mapping pattern of the first physical signal; and transmitting the first physical signal.

5. 发明申请

US20230122240A1 ERROR SAMPLER CIRCUIT 有权
公开(公告)号：US20230122240A1
公开(公告)日：2023-04-20
申请号：US18066027
申请日：2022-12-14
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Abishek MANIAN , Nithin Sathisan PODUVAL , Roland Nii Ofei RIBEIRO
IPC分类号： H04L25/03 , H03K3/037
摘要： An error sampler circuit includes a differential input voltage input, a differential reference voltage input, a master latch circuit, and a slave latch circuit. The master latch circuit includes a slicer circuit. The slicer circuit includes a first input, a second input, and a differential output. The first input is coupled to the differential input voltage input. The second input is coupled to the differential reference voltage input. The slave latch includes a differential input coupled to the differential output of the slicer circuit.

6. 发明授权

US11632082B2 Semiconductor integrated circuit and receiver 有权
公开(公告)号：US11632082B2
公开(公告)日：2023-04-18
申请号：US17018110
申请日：2020-09-11
申请人： Kioxia Corporation
发明人： Tomohiko Takeuchi
IPC分类号： H03F1/02 , H04L25/03 , H04B1/16 , H03F3/195
摘要： According to one embodiment, a semiconductor integrated circuit includes first and second power supply lines, first and second nodes, and first and second circuits. The first circuit is configured to supply a first current to the second power supply line, from the first node or the second node. The second circuit is configured to supply a second current from the first power supply line to the first node based on a magnitude of the first current, and to supply a third current from the first power supply line to the second node based on the magnitude of the first current.

7. 发明申请

US20230116378A1 RECEPTION DEVICE AND COMMUNICATION SYSTEM 有权
公开(公告)号：US20230116378A1
公开(公告)日：2023-04-13
申请号：US18064806
申请日：2022-12-12
申请人： SONY SEMICONDUCTOR SOLUTIONS CORPORATION
发明人： HIROSHI SHIROSHITA
IPC分类号： H04B3/10 , H04L25/03
摘要： Provided is a reception device and a communication system. The reception device includes a compensation circuit connected to a transmission line that is connected to each of a plurality of transmission devices. The compensation circuit compensates a plurality of data signals received from the plurality of transmission devices, respectively, in time division. The reception device further includes an adjustment circuit that adjusts operation of the compensation circuit based on a plurality of training signals received from the plurality of transmission devices.

8. 发明申请

US20230116041A1 PRECODING METHOD, PRECODING DEVICE 有权
公开(公告)号：US20230116041A1
公开(公告)日：2023-04-13
申请号：US18080064
申请日：2022-12-13
申请人： Sun Patent Trust
发明人： Yutaka MURAKAMI , Tomohiro KIMURA , Mikihiro OUCHI
IPC分类号： H04B7/0456 , H04B7/06 , H04L25/03 , H04L27/18 , H04L27/26 , H04L27/34 , H04B7/0413 , H04L1/00
摘要： Disclosed is a precoding method for generating, from a plurality of baseband signals, a plurality of precoded signals that are transmitted in the same frequency bandwidth at the same time. According to the precoding method, one matrix is selected from among matrices defining a precoding process that is performed on the plurality of baseband signals by hopping between the matrices. A first baseband signal and a second baseband signal relating to a first coded block and a second coded block generated by using a predetermined error correction block coding scheme satisfy a given condition.

9. 发明申请

US20230111317A1 SYSTEMS AND METHODS FOR EFFICIENTLY-TRANSFORMED DIGITAL SELF-INTERFERENCE CANCELLATION 有权
公开(公告)号：US20230111317A1
公开(公告)日：2023-04-13
申请号：US18080874
申请日：2022-12-14
申请人： Kumu Networks, Inc.
发明人： Sundeep Venkatraman , Rajendra Tushar Moorti
IPC分类号： G06F17/14 , H04L5/14 , H04B1/525 , H04L25/03 , H04L25/02 , H04L27/26
摘要： An efficiently-transformed digital self-interference canceller, preferably including an FD transformer, a TD transformer, a channel estimator, a composer, and a controller. The canceller can optionally include a channel memory, a predictor, and/or an extender. A method for digital self-interference cancelation, preferably including receiving inputs, transforming the inputs, generating outputs based on the transformed inputs, transforming the outputs, and/or generating a cancellation signal based on the outputs.

10. 发明授权

US11627022B2 Variable gain amplifier and sampler offset calibration without clock recovery 有权
公开(公告)号：US11627022B2
公开(公告)日：2023-04-11
申请号：US17684268
申请日：2022-03-01
申请人： Kandou Labs, S.A.
发明人： Ali Hormati
IPC分类号： H04L25/03 , H03F3/19 , H03F3/45 , H04L7/00
摘要： Methods and systems are described for generating a time-varying information signal at an output of a variable gain amplifier (VGA), sampling, using a sampler having a vertical decision threshold associated with a target signal amplitude, the time-varying information signal asynchronously to generate a sequence of decisions from varying sampling instants in sequential signaling intervals, the sequence of decisions comprising (i) positive decisions indicating the time-varying information signal is above the target signal amplitude and (ii) negative decisions indicating the time-varying information signal is below the target signal amplitude, accumulating a ratio of positive decisions to negative decisions, and generating a gain feedback control signal to adjust a gain setting of the VGA responsive to a mismatch of the accumulated ratio with respect to a target ratio.

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