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公开(公告)号：US20230216641A1
公开(公告)日：2023-07-06
申请号：US18088701
申请日：2022-12-26
Applicant: MEDIATEK INC.
Inventor： Bohan Zhang , Yabo Li , Wei-Jen Chen , Tsung-Sheng Tang
IPC: H04L5/00
CPC classification number: H04L5/0051 , H04L5/006 , H04L5/0023 , H04L5/0035
Abstract: A method to perform. beam management (BM) and/or synchronization (Sync) using primary synchronization signal (PSS) when pilot contamination is low to improve system performance is proposed. A UE first determines pilot contamination. level on PSS of a synchronization signal block (SSB), depending on different network deployment. scenarios. The UE then adaptively perform BM or Sync, by dynamically adjusting to the pilot contamination level on PSS. If the pilot contamination level is high, then the UE follows a 3-symbol mode, e.g., uses only PBCH0, SSS, and PBCH2 symbols for performing BM or Sync. Otherwise, if the pilot contamination level is low, then the UE follows a 4-symbol mode, e.g., uses PSS as an extra symbol for BM or Sync to improve system performance.
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公开(公告)号：US20220239331A1
公开(公告)日：2022-07-28
申请号：US17717932
申请日：2022-04-11
Applicant: MediaTek Inc.
Inventor： Guo-Hau Gau , Ho-Chi Huang , Wei-Jen Chen , Chiou-Wei Tsai , Ju-Ya Chen , Mau-Lin Wu
Abstract: Various novel concepts and schemes pertaining to non-orthogonal multiple access for wireless communications are described. A group orthogonal coded access (GOCA) scheme is introduced to reduce multi-user interference (MUI) and improve performance. A repetition division multiple access (RDMA) scheme is introduced to differentiate user equipment (UEs) by different repetition patterns. A low-density spreading (LDS) scheme is introduced to reduce MUI and improve performance.
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公开(公告)号：US10567116B2
公开(公告)日：2020-02-18
申请号：US15995093
申请日：2018-05-31
Applicant: MediaTek Inc.
Inventor： Mao-Ching Chiu , Chong-You Lee , Timothy Perrin Fisher-Jeffes , Cheng-Yi Hsu , Yen-Shuo Chang , Wei-Jen Chen , Ju-Ya Chen
IPC: H04L1/00 , H03M13/11 , H04B7/0456 , H03M13/00
Abstract: A processor of an apparatus selects a codebook from a plurality of codebooks embedded in a quasi-cyclic-low-density parity-check (QC-LDPC) code. The processor stores the selected codebook in a memory associated with the processor. The processor also encodes data using the selected codebook to generate a plurality of modulation symbols of the data. The processor further controls a transmitter of the apparatus to multiplex, convert, filter, amplify and radiate the modulation symbols as electromagnetic waves through one or more antennas of the apparatus. In selecting the codebook from the plurality of codebooks embedded in the QC-LDPC code, the processor selects the codebook according to one or more rules such that a small codebook requiring a shorter amount of processing latency for the encoding is selected for the encoding unless a larger codebook corresponding to a larger amount of processing latency for the encoding is necessary for the encoding.
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4.发明授权公开(公告)号：US10484013B2
公开(公告)日：2019-11-19
申请号：US16019947
申请日：2018-06-27
Applicant: MediaTek Inc.
Inventor： Chong-You Lee , Timothy Perrin Fisher-Jeffes , Mao-Ching Chiu , Wei-Jen Chen , Ju-Ya Chen
Abstract: A processor of an apparatus establishes a wireless communication link with at least one other apparatus via a transceiver of the apparatus. The processor wirelessly communicates with the other apparatus via the wireless communication link by: selecting a first shift-coefficient table from a plurality of shift-coefficient tables; generating a QC-LDPC code using a base matrix and at least a portion of the first shift-coefficient table; selecting a codebook from a plurality of codebooks embedded in the QC-LDPC code; storing the selected codebook in a memory associated with the processor; encoding data using the selected codebook to generate a plurality of modulation symbols of the data; and controlling the transceiver to multiplex, convert, filter, amplify and radiate the modulation symbols as electromagnetic waves through one or more antennas of the apparatus to transmit the modulation symbols of the data to the other apparatus via the wireless communication link.
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公开(公告)号：US10349350B2
公开(公告)日：2019-07-09
申请号：US15719887
申请日：2017-09-29
Applicant: MediaTek Inc.
Inventor： Xiu-Sheng Li , Wanchi Lee , Wei-Jen Chen
Abstract: Various solutions for transmission resource allocation with respect to user equipment (UE) and network apparatus in mobile communications are described. A UE may receive control information from a network apparatus. The UE may turn on a radio frequency (RF) transceiver of the UE in a part of a transmission time interval (TTI) to receive downlink data in an event that the control information indicates that the downlink data is scheduled in the TTI. The downlink data is scheduled in a part of the TTI but not in any other time interval. The time duration of the TTI may comprise 14 orthogonal frequency-division multiplexing (OFDM) symbols and the part of the TTI may be configured as a mini-slot with time duration less than 14 OFDM symbols.
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Patent Agency Ranking
6.发明授权公开(公告)号：US10206176B2
公开(公告)日：2019-02-12
申请号：US15697423
申请日：2017-09-06
Applicant: MediaTek Inc.
Inventor： Wei-De Wu , Pei-Kai Liao , Hsuan-Li Lin , Shiang-Jiun Lin , Wei-Jen Chen , Li-Chuan Tseng
Abstract: Concepts and examples pertaining to efficient coding switching and modem resource utilization in wireless communication systems are described. A processor of a modem of a user equipment (UE), configured with at least a first-capacity decoder and at least a second-capacity decoder, receives a common virtual carrier (CVC), a dedicated virtual carrier (DVC), or both. The CVC contains common information shared by multiple UEs, control information for the UE, and/or data information related to first data destined for the UE. The DVC contains control information for the UE, the first data, or a combination thereof. The first-capacity decoder decodes data of a small size up to a low data rate. The second-capacity decoder decodes data of a large size up to a high data rate. The processor determines whether to decode the first data using the first-capacity decoder or the second-capacity decoder based on the data information in the CVC.
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公开(公告)号：US20180198466A1
公开(公告)日：2018-07-12
申请号：US15862661
申请日：2018-01-05
Applicant: MediaTek Inc.
Inventor： Mao-Ching Chiu , Timothy Perrin Fisher-Jeffes , Chong-You Lee , Cheng-Yi Hsu , Yen-Shuo Chang , Wei-Jen Chen , Ju-Ya Chen
Abstract: Concepts and schemes pertaining to shift coefficient and lifting factor design for NR LDPC code are described. A processor of an apparatus may generate a quasi-cyclic-low-density parity-check (QC-LDPC) code and encode data using the selected codebook. In generating the QC-LDPC code, the processor may define a plurality of sets of lifting factors, generate a respective table of shift values for each lifting factor of the plurality of sets of lifting factors, and generate the QC-LDPC code using a base matrix and the shift coefficient table.
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公开(公告)号：US09998575B2
公开(公告)日：2018-06-12
申请号：US15450006
申请日：2017-03-05
Applicant: MEDIATEK INC.
Inventor： Chi-Feng Lin , Wei-Jen Chen
IPC: H04L29/08 , H04L12/40 , H04L12/863 , H04L12/811
CPC classification number: H04L69/324 , H04L12/40 , H04L47/38 , H04L47/6245
Abstract: A method used in a network device for outputting data to a bus with a data bus width at each cycle includes: using a packet generating circuit for generating idle data after an end of packet for a packet at a cycle and generating a start of packet for a next packet at a different cycle; and using an inter-packet gap (IPG) generating circuit for receiving data transmitted from the packet generating circuit, dynamically writing the received data into the buffer, and inserting a gap of idle data between the end of packet and the start of packet according to the end of packet and the idle data generated by the packet generating circuit.
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公开(公告)号：US20180083750A1
公开(公告)日：2018-03-22
申请号：US15710825
申请日：2017-09-20
Applicant: MediaTek Inc.
Inventor： Xiu-Sheng Li , Wei-Jen Chen , Wei-De Wu
CPC classification number: H04L5/0041 , H04L1/1614 , H04L1/1671 , H04L1/1819 , H04L5/0058 , H04W72/082
Abstract: Concepts and examples pertaining to improved design for communication systems suffering burst error are described. A processor of a user equipment (UE) receives data over a data channel. The processor also receives an indication that at least a portion of the data channel is subject to interference from one or more interfering signals. The processor either de-weights one or more affected resource elements in the data according to the indication to mitigate impact by the interference or processes the data without considering the indication
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公开(公告)号：US20240406873A1
公开(公告)日：2024-12-05
申请号：US18332036
申请日：2023-06-09
Applicant: MEDIATEK Inc.
Inventor： Chung-Pi LEE , Yuan YUAN , LunHan CHANG , Jun HU , Jianwei ZHANG , Wei-Jen Chen
Abstract: Provided is a traffic pattern adaptive modem (modulator-demodulator) gear control method for an electronic device. The traffic pattern adaptive modem (modulator-demodulator) gear control method includes: when a first criteria is met, on-line collecting a period of input data; executing traffic prediction; whether a second criteria is met to apply the traffic prediction is determined; when the second criteria is met, based on the traffic prediction, a modem gear is adaptively adjusted; and when the second criteria is not met, an algorithm is trained or a period is waited for continuing monitoring whether the second criteria is still met.
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