-
公开(公告)号：US09893843B2
公开(公告)日：2018-02-13
申请号：US14980750
申请日：2015-12-28
Applicant: MEDIATEK INC.
Inventor： Chien-Hwa Hwang , Lung-Sheng Tsai , Yi-Ju Liao , Tze-Ping Low
IPC: H04W4/00 , H04L1/18 , H04W52/26 , H04W52/24 , H04W72/12 , H04L1/00 , H04W28/06 , H04W28/22 , H04L5/00 , H04L5/14
CPC classification number: H04L1/1812 , H04L1/0067 , H04L1/1822 , H04L1/1845 , H04L1/1896 , H04L5/001 , H04L5/0023 , H04L5/0053 , H04L5/0069 , H04L5/14 , H04W28/065 , H04W28/22 , H04W52/243 , H04W52/262 , H04W52/267 , H04W72/12 , H04W72/1252
Abstract: Methods for rate matching with soft buffer size setting at the transmitter and soft channel bits storage at the receiver for superposition coding are proposed. In the superposition coding scheme, a transport block intended to one UE needs to be decoded by another UE's receiver. However, the soft buffer sizes per code block of the two receivers may not be the same since the size depends on the UE category. The base station can signal the soft buffer size used at the transmitter for rate matching to the UEs for superposition decoding. A UE stores information bits associated with an interfering signal in its soft buffers in accordance with the soft buffer size used at the transmitter for rate matching. As a result, the UE can decode and subtract the interfering signal from the desired signal for superposition coding.
-
公开(公告)号：US09680578B2
公开(公告)日：2017-06-13
申请号：US14980991
申请日：2015-12-28
Applicant: MEDIATEK INC.
Inventor： Chien-Hwa Hwang , Yi-Ju Liao , Tze-Ping Low , Lung-Sheng Tsai
IPC: H04B15/00 , H04L1/18 , H04L12/861 , H04L5/00
CPC classification number: H04B15/00 , H04L1/1812 , H04L1/1822 , H04L1/1835 , H04L1/1845 , H04L5/0023 , H04L5/0055 , H04L49/9057
Abstract: A method is proposed to enable a UE performing codeword level interference cancellation (CW-IC) to know whether an interfering transport block (TB) is a new transmission or retransmission. With this knowledge, the UE knows whether the soft channel bits stored in a soft buffer are to be discarded or combined with the soft channel bits newly obtained.
-
13.发明申请Signal Modulation and Demodulation for Multiuser Superposition Transmission scheme 审中-公开多用户叠加传输方案的信号调制解调公开(公告)号：US20170048840A1
公开(公告)日：2017-02-16
申请号：US15235695
申请日：2016-08-12
Applicant: MEDIATEK INC.
Inventor： Chien-Hwa Hwang , Yi-Ju Liao , Tsang-Wei Yu , Lung-Sheng Tsai , Tze-Ping Low , Pei-Kai Liao
CPC classification number: H04L27/3488 , H04J11/0046 , H04L5/0046 , H04L27/3483
Abstract: A method of modulating and demodulating superposed signals for MUST scheme is proposed. A transmitter takes bit sequences intended for multiple receivers under MUST scheme to go through a “bit sequence to constellation points” mapper before entering the modulators to satisfy the Gray coding rule and to achieve high demodulation performance for the receivers. In a first method, each bit sequence is assigned for each constellation point on the constellation map to satisfy one or more conditions under different power split factors. In a second method, the constellation map is divided into sub-regions according to the clustering of the constellation points for bit sequence assignment. A near-UE may use an ML receiver for demodulation and decoding the superposed signal. A far-UE may use an ML receiver or an MMSE receiver for demodulation and decoding the superposed signal.
Abstract translation: 提出了一种用于MUST方案调制和解调叠加信号的方法。 发射机采用MUST方案下的多个接收机的比特序列，在进入调制器之前通过“位序列到星座点”映射器，以满足格雷编码规则并实现接收机的高解调性能。 在第一种方法中，为星座图上的每个星座点分配每个比特序列以满足不同功率分割因子下的一个或多个条件。 在第二种方法中，星座图根据用于比特序列分配的星座点的聚类被划分成子区域。 近UE可以使用ML接收机来对叠加信号进行解调和解码。 远端UE可以使用ML接收机或MMSE接收机对叠加信号进行解调和解码。
-
14.发明公开公开(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).
-
15.发明公开公开(公告)号：US20230345377A1
公开(公告)日：2023-10-26
申请号：US18129044
申请日：2023-03-30
Applicant: MediaTek Inc.
Inventor： Yi-Ju Liao , Wei-De Wu
CPC classification number: H04W52/028 , H04W16/28
Abstract: Various solutions for power saving enhancements with a wake-up signal for a dual-radio system are described. An apparatus may configure a main radio of the apparatus to enter a sleep mode and a secondary radio of the apparatus to be in an active mode. The apparatus may receive, via the secondary radio, a first signal from a network node. The apparatus may apply the first signal for at least one of: a time or frequency synchronization with the network node; an indication of whether to wake up the main radio from the sleep mode; and a signal quality measurement.
-
Patent Agency Ranking
公开(公告)号：US11317379B2
公开(公告)日：2022-04-26
申请号：US16916270
申请日：2020-06-30
Applicant: Mediatek Inc.
Inventor： Lung-Sheng Tsai , Chien-Hwa Hwang , Yi-Ju Liao
Abstract: A UE determines N1 component carriers on each of which the UE is configured to detect a respective one PDCCH in a slot. The UE determines N2 component carriers on each of which the UE is configured to detect respective at least two PDCCHs in the slot. The UE determines a total Q blind detections of PDCCH that the UE is capable of performing. The UE determines a first predetermined scaling factor X. The UE allocates M1 blind detections of the Q blind detections to be available on each of the N1 component carriers and M2 blind detections of the Q blind detections to be available on each of the N2 component carriers such that (N1*M1+N2*M2) is a largest integer no greater than Q. M2 equals to X*M1. The UE performs blind detections in accordance with the allocations.
-
公开(公告)号：US20210105716A1
公开(公告)日：2021-04-08
申请号：US17012939
申请日：2020-09-04
Applicant: MEDIATEK INC.
Inventor： Wei-De Wu , Cheng-Hsun Li , Yi-Ju Liao , Pei-Kai Liao
Abstract: A method of dynamically adapt to a minimum applicable scheduling offset value for a UE operated with bandwidth part (BWP) and cross-slot scheduling in a mobile communication network is proposed. At higher layer (L2 RRC layer), the UE receives RRC configuration for a set of minimum applicable scheduling offset values (K0/K2) for downlink/uplink cross-slot scheduling. At lower layer (L1 physical layer), the UE dynamically determines an active minimum K0/K2 value for an active DL BWP or UL BWP based on 1) a one-bit DCI indicator over PDCCH; or based on 2) an active BWP change due to timeout.
-
公开(公告)号：US20200351780A1
公开(公告)日：2020-11-05
申请号：US16861372
申请日：2020-04-29
Applicant: Mediatek Inc.
Inventor： Yi-Ju Liao , Wei-De Wu
Abstract: A UE receives one or more modulation symbols on one or more resource elements prior to an ON duration in a particular DRX cycle in RRC connected mode. The one or more resource elements are allocated to carry a wake-up signal. The UE performs a blind detection of the wake-up signal on the one or more modulation symbols in accordance with a DCI format and a group identifier identifying a group of UEs including the UE. The wake-up signal includes an indication that indicates whether one or more UEs of the group of UEs should monitor a down link control channel in the ON duration. The UE determines whether to operate in a normal state and monitor a down link control channel in the ON duration based on the wake-up signal when the wake-up signal is detected.
-
公开(公告)号：US20200351774A1
公开(公告)日：2020-11-05
申请号：US16861323
申请日：2020-04-29
Applicant: Mediatek Inc.
Inventor： Yi-Ju Liao , Wei-De Wu
Abstract: A UE receives a configuration specifying that a particular DCI format include a field indicating adaptation of cross-slot scheduling or same-slot scheduling. The UE determines whether a first down link control channel received in a first downlink slot in an active time of a discontinuous reception (DRX) cycle is in the particular DCI format. The UE determines whether the field of the first down link control channel indicates adaptation of cross-slot scheduling when the first down link control channel is in the particular DCI format. The UE enters into a power saving state during a second downlink slot in the active time of the DRX cycle when the field indicates adaptation of cross-slot scheduling and no data are scheduled to be transmitted to the UE during the second downlink slot. The second downlink slot is the first downlink slot or a slot subsequent to the first downlink slot.
-
公开(公告)号：US10757581B2
公开(公告)日：2020-08-25
申请号：US15927226
申请日：2018-03-21
Applicant: MEDIATEK INC.
Inventor： Chien-Hwa Hwang , Chien-Chang Li , Yi-Ju Liao , Pei-Kai Liao , Weidong Yang
Abstract: A new design for physical downlink control channel (PDCCH) is proposed for the next generation 5G new radio systems. A UE receives the configuration of a default control resource set (CORESET) in MIB/SIB from its serving base station. The default CORESET contains both common search space and UE-specific search space for candidate PDCCH transmission. A PDCCH in a default CORESET is mapped to physical resource in a distributed or localized manner. Specifically, various REG-to-CCE mapping rules are proposed to improve frequency diversity gain, or frequency selectivity gain, or to reduce latency of PDCCH processing. Further, to facilitate analog beamforming in mmWave systems, the default CORESET is transmitted in a synchronization signal (SS) block associated with a corresponding analog beam direction.
-
-
-
-
-
-
-
-
-
Search Results
67
records
(took 0.016 seconds)
