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

IPC: H04W52/02 ,  H04W56/00 ,  H04W76/20

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).

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.

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

IPC: H04W52/02 ,  H04L27/02 ,  H04L27/26

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).

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

IPC: H04L27/06 ,  H04L27/26

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.

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.

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

IPC: H04W56/00 ,  H04W52/02

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.

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

IPC: H04W24/10 ,  H04L5/00

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.

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

IPC: H04W52/02 ,  H04L5/00

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.

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

IPC: H04W36/16 ,  H04W36/08 ,  H04W68/02

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.

公开(公告)号：US20240007950A1

公开(公告)日：2024-01-04

申请号：US18205506

申请日：2023-06-03

Applicant: MediaTek Inc.

Inventor： Yi-Ju Liao ,  Chien-Chun Cheng ,  Wei-De Wu

IPC: H04W52/02

CPC classification number: H04W52/0229 ,  H04W52/0212

Abstract: Examples pertaining to connected-mode power saving with a low-power (LP) wake-up signal (WUS) for a dual-radio system in mobile communications are described. In one example, an apparatus may monitor, via a secondary radio of the apparatus, whether an LP WUS is received from a network node in a case that the apparatus is operating in a connected mode. The apparatus may determine whether to wake up a main radio of the apparatus for physical downlink control channel (PDCCH) monitoring in the connected mode based on the monitoring of the LP WUS.