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公开(公告)号：US20240340794A1
公开(公告)日：2024-10-10
申请号：US18585004
申请日：2024-02-22
Applicant: MediaTek Inc.
Inventor： Chien-Chun Cheng , Wei-De Wu , Yi-Chia Lo , Yi-Ju Liao
CPC classification number: H04W52/0235 , H04W56/0015 , H04W76/20
Abstract: A communication apparatus includes a low power wakeup receiver (LP-WUR) and a processor. The processor is configured to receive signals from a network apparatus via the LP-WUR, and perform operations including: receiving at least one synchronization signal sent by the network apparatus, wherein the at least one synchronization signal comprises at least one of a primary synchronization signal (PSS) and a secondary synchronization signal (SSS); and using the at least one synchronization signal to detect timing of a low power wakeup signal (LP-WUS).
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公开(公告)号：US20250126004A1
公开(公告)日：2025-04-17
申请号：US18903156
申请日：2024-10-01
Applicant: MEDIATEK INC.
Inventor： Chien-Chun Cheng , Wei-De Wu , Yi-Ju Liao , Chun-Chia Chen
Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The UE receiving a unified waveform signal from a base station, wherein the unified waveform signal comprises an On-Off Keying (OOK) signal and an Orthogonal Frequency Division Multiplexing (OFDM) signal; determining whether an indicator in the OFDM signal indicates that the unified waveform signal is a low-power wake-up signal (LP-WUS); decoding the LP-WUS when the indicator indicates that the unified waveform signal is the LP-WUS; and terminating a decoding operation when the indicator indicates that the unified waveform signal is not the LP-WUS.
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公开(公告)号：US20240284551A1
公开(公告)日：2024-08-22
申请号：US18521625
申请日：2023-11-28
Applicant: MediaTek Inc.
Inventor： Chien-Chun Cheng , Mu-Tai Lin , Wei-De Wu , Yi-Ju Liao , Cheng-Hsun Li
IPC: H04W76/28 , H04W52/02 , H04W72/12 , H04W72/232
CPC classification number: H04W76/28 , H04W52/0235 , H04W72/12 , H04W72/232
Abstract: Examples pertaining to cell discontinuous transmission (DTX) and user equipment (UE) discontinuous reception (DRX) are described. A UE receives a configuration of a cell DTX from a network node with a cell DTX functionality. The configuration carries information regarding at least one of a periodicity, a start slot or a start offset and an on duration. Then, the UE skips a monitoring activity during one or more non-active periods of the cell DTX of the network node.
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公开(公告)号：US20240015655A1
公开(公告)日：2024-01-11
申请号：US18209923
申请日：2023-06-14
Applicant: MediaTek Inc.
Inventor： Chien-Chun Cheng , Wei-De Wu , Yi-Ju Liao
CPC classification number: H04W52/0235 , H04L27/02 , H04L27/2666
Abstract: Various solutions for low power wake-up signal (LP-WUS) transmission with respect to user equipment and network apparatus in mobile communications are described. An apparatus may receive a wake-up signal (WUS) configuration from a network node. The apparatus may monitor a wake-up signal based on the WUS configuration. The wake-up signal may be modulated based on one-off keying (OOK) and generated by a multi-carrier amplitude shift-keying (MC-ASK) waveform generation, and wherein a parameter K is a size of inverse fast Fourier transform (IFFT) of cyclic-prefix orthogonal frequency-division multiple access (CP-OFDMA).
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公开(公告)号：US20240388479A1
公开(公告)日：2024-11-21
申请号：US18599215
申请日：2024-03-08
Applicant: MEDIATEK INC.
Inventor： Chien-Chun Cheng , Wei-De Wu , Yi-Ju Liao , Yi-Chia Lo
Abstract: A communication apparatus includes a low power wakeup receiver (LP-WUR) and a processor. The processor is configured to perform operations including: receiving a modulated signal from a network apparatus via the LP-WUR, wherein the modulated signal has a harmonized design that accommodates overlaid waveforms of one or more modulation schemes; and deriving information bits from demodulating the modulated signal.
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Patent Agency Ranking
公开(公告)号：US20240114454A1
公开(公告)日：2024-04-04
申请号：US18236685
申请日：2023-08-22
Applicant: MediaTek Inc.
Inventor： Chien-Chun Cheng , Wei-De Wu , Yi-Ju Liao
IPC: H04W52/02
CPC classification number: H04W52/0235
Abstract: Various solutions for low-power wake-up signal (LP-WUS) design with respect to user equipment and network node in mobile communications are described. An apparatus may receive a LP-WUS configuration from a network node. The apparatus may receive a LP-WUS based on the LP-WUS configuration from the network node. The apparatus may determine whether to wake up according to the LP-WUS. The LP-WUS with N subcarriers (SCs) is generated through a transformation of M-bit on-off keying (OOK) in a time domain. The transformation is a discrete Fourier transform (DFT) or least square operation. K samples are generated from the M bits with a signal modification or a signal truncation. The LP-WUS is generated through an inverse fast Fourier transform (IFFT) operation. The K is a size of the IFFT operation of cyclic-prefix orthogonal frequency-division multiple access (CP-OFDMA). The N is less than or equal to the K.
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7.发明公开公开(公告)号：US20240284376A1
公开(公告)日：2024-08-22
申请号：US18379642
申请日：2023-10-12
Applicant: MediaTek Inc.
Inventor： Chien-Chun Cheng , Wei-De Wu , Yi-Ju Liao , Din-Hwa Huang , Yi-Chia Lo
CPC classification number: H04W56/0075 , H04W52/0229
Abstract: Examples pertaining to synchronization and radio resource management in mobile communications are described. A user equipment (UE) receives a periodic low power synchronization signal (LP-SS) from a network node via a low-power wake-up receiver (LP-WUR) of the apparatus. Then, the UE performs a synchronization based on the periodic LP-SS via the LP-WUR of the apparatus in an event that a main radio of the apparatus is in a power saving mode. The synchronization comprises at least a coarse time synchronization and a coarse frequency synchronization.
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公开(公告)号：US20240040418A1
公开(公告)日：2024-02-01
申请号：US18209764
申请日：2023-06-14
Applicant: MediaTek Inc.
Inventor： Yi-Ju Liao , Din-Hwa Huang , Wei-De Wu , Chien-Chun Cheng
CPC classification number: H04W24/10 , H04L5/0051
Abstract: Examples pertaining to reference signal (RS) enhancements in mobile communications are described. An apparatus (e.g., a user equipment (UE)) may receive a minimum broadcast RS from a network node (e.g., a base station (BS)). Based on the minimum broadcast RS, the apparatus may perform basic downlink (DL) measurement. The apparatus may also receive or transmit an on-demand RS from or to the network node in a case that a triggering condition is fulfilled. Based on the on-demand RS, the apparatus may perform additional DL or uplink (UL) measurement.
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公开(公告)号：US20240155491A1
公开(公告)日：2024-05-09
申请号：US18379634
申请日：2023-10-12
Applicant: MediaTek Inc.
Inventor： Chien-Chun Cheng , Wei-De Wu , Yi-Ju Liao , Yi-Chia Lo , Cheng-Hsun Li
CPC classification number: H04W52/0229 , H04L5/0048 , H04W52/0235
Abstract: Various solutions for low-power wake-up signal (LP-WUS) monitoring with respect to user equipment and network node in mobile communications are described. An apparatus may receive a configuration from a network node. The apparatus may comprise a main radio (MR) and a lower-power wake-up radio (LP-WUR). The apparatus may determine whether to activate or deactivate a low-power wake-up signal (LP-WUS) monitoring by the LP-WUR according to at least one pre-configured condition in the configuration. The apparatus may receive an LP-WUS from the network node via the LP-WUR in an event that the LP-WUS monitoring is activated.
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10.发明公开公开(公告)号：US20240031896A1
公开(公告)日：2024-01-25
申请号：US18211265
申请日：2023-06-18
Applicant: MediaTek Inc.
Inventor： Chien-Chun Cheng , Shiauhe Tsai , Wei-De Wu
CPC classification number: H04W36/165 , H04W36/08 , H04W68/02
Abstract: Various solutions for cell reselection for network energy saving with respect to user equipment and network apparatus in mobile communications are described. An apparatus may receive a network energy saving assistant information (NESAI) from a network node. The NESAI may comprise a cell barred field or a cell reservation field for network energy saving (NWES) configured to differentiate between non-NES user equipments (UEs) and NES-capable UEs. The apparatus may perform a cell reselection for a network energy saving (NES) cell based on the NESAI.
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