-
公开(公告)号：US20200186319A1
公开(公告)日：2020-06-11
申请号：US16790937
申请日：2020-02-14
Applicant: MEDIATEK INC.
Inventor： Pei-Kai Liao , Chia-Chun Hsu
Abstract: Apparatus and methods are provided for efficient bandwidth adaptation for wideband carrier. In one novel aspect, the UE starts a BWP timer upon detecting one or more BWP timer starting triggering events, resets the BWP timer upon detecting BWP resetting triggering events, and switches to the default BWP upon expiration of the BWP timer. The BWP timer starting triggering events comprises decoding a command to switch away from the default BWP, the detection of end of DL data transmission in DRX mode. In another novel aspect, the UE only decodes the DCI indication for active BWP switching in the first three OFDM symbols of a subframe or a slot. In yet another novel aspect, when the SPS is configured for the serving cell for a UE with multiple BWPs, the SPS is configured for all the BWPs accordingly.
-
公开(公告)号：US10595326B2
公开(公告)日：2020-03-17
申请号：US15835745
申请日：2017-12-08
Applicant: MEDIATEK INC.
Inventor： Pei-Kai Liao , Yi-Ju Liao
Abstract: A method of downlink control information (DCI) transmission is proposed to enhance DCI transmission efficiency over physical layer signaling in cellular mobile communication networks. A serving base station uses a higher layer signaling, e.g., radio resource control (RRC) signaling message to configure a plurality of user equipments (UEs) to monitor UE-group DCI. When the UE is configured to monitor UE-group DCI, the UE monitors both unicast DCI and UE-group DCI in each corresponding scheduling time unit, e.g., a subframe in LTE. The candidate positions of the unicast DCI and the UE-group DCI can be orthogonal, partially overlapping, or fully overlapping with each other.
-
公开(公告)号：US10454652B2
公开(公告)日：2019-10-22
申请号：US15227204
申请日：2016-08-03
Applicant: MEDIATEK INC.
Inventor： Lung-Sheng Tsai , Pei-Kai Liao , Yi-Ju Liao , Chien-Hwa Hwang
Abstract: Methods of enabling multiuser superposition transmission (MUST) in LTE systems are proposed. MUST operation allows simultaneous transmission for multiple co-channel users on the same time-frequency resources. A higher-layer signaling is used for configuring a UE to enable MUST in each transmission mode (TM). MUST is a sub-TM of each TM. When a UE is configured by higher layer to enable MUST, the UE will monitor new DCI formats supported by the configured TM with new fields carrying scheduling information of another co-channel UE. Dynamic switching between MUST and non-MUST operation is allowed. Mixed transmission schemes and precoders among co-channel UEs are also supported.
-
公开(公告)号：US20190305916A1
公开(公告)日：2019-10-03
申请号：US16366058
申请日：2019-03-27
Applicant: Mediatek Inc.
Inventor： Pei-Kai Liao
Abstract: Apparatus and methods are provided for efficient bandwidth adaptation operation. In one novel aspect, the UE configured with a plurality of BWPs receives a paging control for system information (SI) update in an active downlink (DL) BWP by the UE, wherein the paging control for SI update carries an SI-BWP indication that includes BWP information for SI update and obtains system information on a selected BWP, wherein the selected BWP is determined based on the SI-BWP indication. In one embodiment the paging control carries an indication about on which DL bandwidth part the system information broadcast can be received. In another embodiment, the paging control carries an indication about whether system information broadcast can be received in the active DL bandwidth part. In another novel aspect, the paging control indicates an SI update and UE obtains the SI on the initial active BWP.
-
公开(公告)号：US20190254009A1
公开(公告)日：2019-08-15
申请号：US16272055
申请日：2019-02-11
Applicant: Mediatek Inc.
Inventor： Chien Hwa Hwang , Pei-Kai Liao , Wei-De Wu , Yen Shuo Chang
CPC classification number: H04W72/042 , H04W4/06 , H04W72/0446 , H04W72/0453 , H04W72/10 , H04W72/1205 , H04W76/11
Abstract: A method of wireless communication of a UE is provided. The UE determines resources of a first PDSCH and resources of second at least one PDSCH on a cell, the first PDSCH being a unicast PDSCH specific to the UE. The UE determines that the first PDSCH overlaps with the second at least one PDSCH in a time domain. The UE determines whether the second at least one PDSCH is another unicast PDSCH specific to the UE. When the second at least one PDSCH is not another unicast PDSCH specific to the UE, a duration required for decoding the first PDSCH meets a duration threshold, and the cell is in a first frequency range, the UE (a) refrains from decoding the first PDSCH independently of a transport block size of the second at least one PDSCH or (b) determines a transport block size of the second at least one PDSCH.
-
Patent Agency Ranking
公开(公告)号：US10348431B2
公开(公告)日：2019-07-09
申请号：US15657430
申请日：2017-07-24
Applicant: MEDIATEK INC.
Inventor： Pei-Kai Liao , Hsiao-Lan Chiang , Chien-Chang Li , Xiangyang Zhuang
Abstract: A method of small cell discovery and RSRP/RSRQ measurements in OFDM/OFDMA systems is proposed. A discovery reference signal (DRS) with low transmission frequency is introduced to support small cell detection within a short time, multiple small cell discovery, and accurate measurement of multiple small cells. The DRS consists of one or multiple reference signal types with the functionalities including timing and frequency synchronization, cell detection, RSRP/RSSI/RSRQ measurements, and interference mitigation. RE muting is configured for the DRS to reduce interference level from data to DRS for discovery and RSRP/RSRQ measurements for small cells.
-
公开(公告)号：US10231228B2
公开(公告)日：2019-03-12
申请号：US15712297
申请日：2017-09-22
Applicant: MEDIATEK INC.
Inventor： Pei-Kai Liao , Yi-Ju Liao
Abstract: A method of two-stage scheduling in downlink control channel is proposed to enhance downlink control information (DCI) forward compatibility and hardware flexibility. The DCI comprises a basic DCI and an extended DCI. The basic DCI provides basic scheduling information of the scheduled data. The extended DCI provides extended scheduling information of the scheduled data channel. The basic DCI can be unicast to a single UE over UE-specific search space. The basic DCI can also be broadcast or multicast to a group of UEs over common search space. UE performs blind detection of the basic DCI only, while the location and size of the extended DCI can be provided by the basic DCI or provided by a higher layer signaling. Cross-slot/subframe and Multi-slot/subframe scheduling can also be applied in the two-stage scheduling.
-
公开(公告)号：US20180367262A1
公开(公告)日：2018-12-20
申请号：US16006060
申请日：2018-06-12
Applicant: Mediatek Inc.
Inventor： Chien Hwa Hwang , Pei-Kai Liao , Yen Shuo Chang , MingChe Lu
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 receives, on a down-link, an indication indicating a first number of predetermined time units for delaying sending an acknowledgment message after receiving data in a slot. The UE obtains one or more conditions based on the first number, the one or more conditions affecting time required for processing the data received in the slot and affecting a duration of a predetermined time unit. The UE determines whether at least one of the one or more conditions is met. The UE further sends, on an uplink, the acknowledgment message according to the first number predetermined time units after receiving the data in the slot when at least one of the one or more conditions is met.
-
公开(公告)号：US20180352544A1
公开(公告)日：2018-12-06
申请号：US15990715
申请日：2018-05-28
Applicant: MEDIATEK INC.
Inventor： James Wang , Hsin-Ying Lee , Shih-Chieh Yen , Ming-Yu Hsieh , Pei-Kai Liao
CPC classification number: H04W72/048 , H04L5/0039 , H04W72/042 , H04W72/0453
Abstract: Aspects of the disclosure provide a control apparatus that includes transceiver circuitry and processing circuitry. The transceiver circuitry is configured to transmit/receive signals from a plurality of terminal devices using a shared channel. The processing circuitry is configured to determine distances to the plurality of terminal devices, allocate resource elements in the shared channel according to the distances, and communicate, via the transceiver circuitry, with the plurality of terminal devices according to the allocation of the resource elements in the shared channel.
-
公开(公告)号：US09985700B2
公开(公告)日：2018-05-29
申请号：US15150001
申请日：2016-05-09
Applicant: MEDIATEK INC.
Inventor： Chien-Hwa Hwang , Lung-Sheng Tsai , Yi-Ju Liao , Pei-Kai Liao , Weidong Yang
IPC: H04B7/0452 , H04B17/336 , H04W72/12 , H04L5/00 , H04L27/00
CPC classification number: H04B7/0452 , H04B7/063 , H04B7/0632 , H04B17/336 , H04J11/004 , H04L5/0023 , H04L5/0026 , H04L5/0028 , H04L5/0037 , H04L5/0048 , H04L5/006 , H04L5/0069 , H04L27/0008 , H04L27/183 , H04L27/3488 , H04W72/1231
Abstract: A method of performing downlink multiuser superposition transmission (MUST) with enhanced channel state information (CSI) feedback is proposed. When a user equipment (UE) reports CQI/SINR feedback for RI=RANK-2, the UE also reports a single beam CQI/SINR feedback for RI=RANK1. As a result, the scheduling base station can calculate the actual SINRs based on different MUST scenarios and thereby determining appropriate modulation and coding scheme (MCS) for the UE. Furthermore, if the granularity of the CQI table cannot reflect the high values of the single beam SINR, then a predefined scaling factor (0
-
-
-
-
-
-
-
-
-
Search Results
167
records
(took 0.022 seconds)
