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51.发明申请公开(公告)号：US20180206225A1
公开(公告)日：2018-07-19
申请号：US15843274
申请日：2017-12-15
Applicant: MEDIATEK INC.
Inventor： Xiu-Sheng Li , Chia-Hua Lin , Guo-Hau Gau , Ju-Ya Chen
CPC classification number: H04W72/0413 , H04L1/1671 , H04L1/1812 , H04L1/1861 , H04L5/0007 , H04L5/0053 , H04L27/2634 , H04W72/044 , H04W88/02 , H04W88/08
Abstract: Apparatus and methods are provided for RE allocation for UCI on PUSCH. In one novel aspect, the UE encodes UCI for transmission on PUSCH in a NR network. The UE allocates UCI REs onto the PUSCH following one or more UCI RE allocation rules including (a) using same logical allocation patterns for both CP-OFDM waveforms and DFT-S-OFDM waveforms, (b) distributing the UCI REs across a time domain of the PUSCH, and (c) distributing the UCI REs across a frequency domain for CP-OFDM or across a virtual-time domain for DFT-S-OFDM. In one embodiment, the HARQ-ACK REs are distributed across the time domain as much as possible. In another embodiment, the allocation of the HARQ-ACK REs further involves calculating the number of HARQ REs dynamically for the HARQ ACK. The number of HARQ REs is based on a weighting parameter, which is either configured or obtained through system information.
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公开(公告)号：US10009073B2
公开(公告)日：2018-06-26
申请号：US15399754
申请日：2017-01-06
Applicant: MediaTek Inc. , NATIONAL TAIWAN UNIVERSITY
Inventor： Cheng-Rung Tsai , An-Yeu Wu , Ju-Ya Chen , Qiang Zhou
IPC: H04B7/02 , H04B7/0408 , H04B7/06 , H04L25/03
CPC classification number: H04B7/0408 , H04B7/0617 , H04B7/0684 , H04B7/0695 , H04B7/088 , H04L25/0206 , H04L25/03898 , H04L25/03961
Abstract: A system for acquiring channel knowledge and a method thereof are provided. At least one transmitter generates multiple directional beams in different directions, next modulates the directional beams in the different directions with at least one spreading sequence, so as to enlarge the beam range of each directional beam in the different directions and use the modulated directional beams as training-specific beams in the different directions, and sweeps the multiple training-specific beams in the different directions by using a plurality of antennas, so that at least one receiver measures at least one training-specific beam, and determines the channel knowledge according to the measurement result and beam-related information associated with the at least one training-specific beam, so as to achieve a technical effect of reducing training overhead.
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53.发明申请公开(公告)号：US20170332249A1
公开(公告)日：2017-11-16
申请号：US15589052
申请日：2017-05-08
Applicant: MEDIATEK INC.
Inventor： Jiann-Ching Guey , Ming-Po Chang , Ju-Ya Chen
CPC classification number: H04W16/28 , H04B7/0617 , H04B7/084 , H04W72/046 , H04W84/042
Abstract: A method of steering beam direction and shaping beamwidth of a directional beam using a phased antenna array in a beamforming cellular system is proposed. The N antenna elements of the phased antenna array are applied with a set of combined beam coefficients to steer the direction of the beam and to shape the beamwidth to a desired width. Specifically, in addition to the original constant phase shift values, additional phase modulations are applied to expand the beam to a desirable width. The phased antenna array applied with the combined beam coefficients involve only phase shift, no amplitude modulation is needed and thereby increasing beamforming gain and efficiency.
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公开(公告)号：US09661506B2
公开(公告)日：2017-05-23
申请号：US15249562
申请日：2016-08-29
Applicant: MEDIATEK INC.
Inventor： Ju-Ya Chen , Jing-Hong Conan Zhan
CPC classification number: H04W16/28 , H01Q3/38 , H04B7/0695 , H04B7/0851 , H04B7/086
Abstract: A transceiver architecture with combined digital beamforming and analog/hybrid beamforming is proposed. Digital beamforming is used for beam training with reduced overhead (switching time). It is beneficial to estimate all UE's angle of arrival (AoA) at the same time. In addition, the pilot/training signals are transmitted in a narrow band to reduce complexity. Analog/hybrid beamforming is used for data transmission with high directive gain and low complexity. The value of beamforming weights (phase shifter values) in analog domain can be based on the estimation of AoA from beam training. By using digital beamforming for beam training, combined with analog/hybrid beamforming for data transmission, effective beamforming is achieved with reduced overhead, complexity, and cost.
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55.发明授权Radio resource efficient transmission for group communication over LTE eMBMS 有权无线资源有效传输，用于LTE eMBMS上的群组通信公开(公告)号：US09319851B2
公开(公告)日：2016-04-19
申请号：US14221722
申请日：2014-03-21
Applicant: MEDIATEK INC.
Inventor： Chia-Hao Yu , Chia-Chun Hsu , Yih-Shen Chen , Ju-Ya Chen
IPC: H04B7/00 , H04W4/08 , H04W4/10 , H04W36/32 , H04W72/00 , H04W36/08 , H04W76/00 , H04W4/06 , H04W74/00
CPC classification number: H04W4/08 , H04L5/0037 , H04L12/185 , H04L12/1886 , H04W4/06 , H04W4/10 , H04W24/08 , H04W36/0083 , H04W36/08 , H04W36/30 , H04W36/32 , H04W72/00 , H04W72/005 , H04W72/121 , H04W74/006 , H04W76/40
Abstract: A method of supporting group communication over LTE MBMS is provided. A UE first establishes a unicast Evolved Packet Service (EPS) bearer in an LTE network for group communication. The UE belongs to a communication group having a communication group ID. The UE receives access information from the network for monitoring downlink (DL) multicast traffic of the DL group communication based on a multicast decision. The UE is then ready for monitoring a multicast Multimedia Broadcast Multicast Service (MBMS) bearer for receiving the DL multicast traffic. The multicast MBMS bearer is associated with a Temporary Mobile Group Identifier (TMGI), and wherein the TMGI is associated with the communication group ID. The UE de-multiplexes DL traffic received either from the multicast MBMS bearer or from the unicast EPS bearer into a single group communication application.
Abstract translation: 提供了一种通过LTE MBMS支持群组通信的方法。 UE首先在用于组通信的LTE网络中建立单播演进分组业务（EPS）承载。 UE属于具有通信组ID的通信组。 UE从网络接收基于多播决定的DL组通信的下行链路（DL）组播流量的接入信息。 然后，UE准备监视用于接收DL多播业务的组播多媒体广播多播服务（MBMS）承载。 组播MBMS承载与临时移动组标识符（TMGI）相关联，并且其中TMGI与通信组ID相关联。 UE将从组播MBMS承载或从单播EPS承载接收的DL业务解复用为单组通信应用。
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Patent Agency Ranking
56.发明授权公开(公告)号：US11871312B2
公开(公告)日：2024-01-09
申请号：US16586276
申请日：2019-09-27
Applicant: MediaTek Inc.
Inventor： Ju-Ya Chen , Ahmet Umut Ugurlu
CPC classification number: H04W4/40 , H04L1/1812 , H04L5/0055 , H04W72/23 , H04W76/27
Abstract: Various examples and schemes pertaining to sidelink resource allocation for vehicle-to-everything (V2X) in New Radio (NR) mobile communications are described. An apparatus implemented in a first user equipment (UE) receives a first signaling from a network node of a wireless network, with the first signaling configuring a first sidelink resource for a sidelink between the first UE and a second UE. The apparatus transmits a packet or transport block (TB) to the second UE on the sidelink using the configured first sidelink resource. The apparatus also receives a second signaling from the network node responsive to the second UE failing to decode the packet or TB, with the second signaling dynamically configuring a second sidelink resource for the sidelink. The apparatus then retransmits the packet or TB to the second UE on the sidelink using the dynamically configured second sidelink resource.
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57.发明申请公开(公告)号：US20220337983A1
公开(公告)日：2022-10-20
申请号：US17859117
申请日：2022-07-07
Applicant: MediaTek Inc.
Inventor： Chien-Yi Wang , Ju-Ya Chen
Abstract: For sidelink vehicle-to-everything (V2X) transmission, a first user equipment (UE) obtains time-and-frequency resources that are bounded by two subchannel boundaries and two slot boundaries. The first UE transmits encoded control information to a second UE in a Physical Sidelink Control Channel (PSCCH) that occupies a first portion of the time-and-frequency resources starting from a lowest resource block (RB) in a lowest subchannel and from an earliest symbol available for sidelink control and data transmission. The first UE further transmits encoded data to the second UE in a Physical Sidelink Shared Channel (PSSCH) that occupies a second portion of the time-frequency resources. The second portion includes (a) a first set of RBs in the same symbols as the PSCCH and not used by the PSCCH, and (b) a second set of RBs in symbols not used by the PSCCH.
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公开(公告)号：US10893512B2
公开(公告)日：2021-01-12
申请号：US15843274
申请日：2017-12-15
Applicant: MEDIATEK INC.
Inventor： Xiu-Sheng Li , Chia-Hua Lin , Guo-Hau Gau , Ju-Ya Chen
Abstract: Apparatus and methods are provided for RE allocation for UCI on PUSCH. In one novel aspect, the UE encodes UCI for transmission on PUSCH in a NR network. The UE allocates UCI REs onto the PUSCH following one or more UCI RE allocation rules including (a) using same logical allocation patterns for both CP-OFDM waveforms and DFT-S-OFDM waveforms, (b) distributing the UCI REs across a time domain of the PUSCH, and (c) distributing the UCI REs across a frequency domain for CP-OFDM or across a virtual-time domain for DFT-S-OFDM. In one embodiment, the HARQ-ACK REs are distributed across the time domain as much as possible. In another embodiment, the allocation of the HARQ-ACK REs further involves calculating the number of HARQ REs dynamically for the HARQ ACK. The number of HARQ REs is based on a weighting parameter, which is either configured or obtained through system information.
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公开(公告)号：US10887910B2
公开(公告)日：2021-01-05
申请号：US16671179
申请日：2019-11-01
Applicant: MediaTek Inc.
Inventor： Ju-Ya Chen , Chien-Yi Wang , Ahmet Umut Ugurlu
Abstract: Various examples and schemes pertaining to New Radio (NR) vehicle-to-everything (V2X) cluster management are described. An apparatus, implemented in a user equipment (UE) of a V2X cluster in an NR V2X communication environment, receives a scheduling request from a member of the V2X cluster. The apparatus transmits a resource grant to the member to allocate a resource of one or more resources to the member responsive to the receiving of the scheduling request. The one or more resources are either: (a) preconfigured by a wireless network, or (b) granted by the wireless network responsive to the UE transmitting a resource request to the wireless network upon receiving the scheduling request.
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公开(公告)号：US10659079B2
公开(公告)日：2020-05-19
申请号：US15971350
申请日：2018-05-04
Applicant: Mediatek Inc.
Inventor： Cheng-Yi Hsu , Chong-You Lee , Wei Jen Chen , Maoching Chiu , Timothy Perrin Fisher-Jeffes , Ju-Ya Chen , Yen Shuo Chang
Abstract: An apparatus determines a code block size (CBS) of information bits contained in a codeword of low-density parity check (LDPC) coding. The apparatus compares the CBS with at least one threshold, determines, based on a result of the comparison, a Kb number and determines a Kp number based on a code rate and the Kb number. The apparatus generates a parity check matrix. An information portion of the parity check matrix is a first matrix formed by M number of second square matrices. M is equal to Kp multiplied by Kb. A total number of columns in the Kb number of second square matrices is equal to a total number of bits of the CBS. One or more matrices of the M number of second square matrices are circular permutation matrices. The apparatus operates an LDPC encoder or an LDPC decoder based on the parity check matrix.
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