公开(公告)号：US20180323846A1

公开(公告)日：2018-11-08

申请号：US15971442

申请日：2018-05-04

Applicant: MediaTek Inc.

Inventor： Lung-Sheng Tsai ,  Weidong Yang

IPC: H04B7/06 ,  H04W8/22 ,  H04L25/02 ,  H04B7/0456

CPC classification number: H04B7/0617 ,  H04B7/0456 ,  H04B7/0626 ,  H04L25/0202 ,  H04W8/22

Abstract: The techniques described herein relate to methods, apparatus, and computer readable media configured to provide for wireless techniques related to channel reciprocity. A channel estimation process between a mobile device and a base station is configured. The channel estimation process includes estimating a set of channel characteristics for an uplink direction of the wireless communication channel based on signals transmitted by the mobile device over the first set of antennas, and receiving a report associated with a set of channel characteristics for a downlink direction of the wireless communication channel from the mobile device, wherein the mobile device generates the report based on the estimated set of channel characteristics for the downlink direction of the wireless communication channel corresponding to the first set of antennas.

公开(公告)号：US10111131B2

公开(公告)日：2018-10-23

申请号：US15431445

申请日：2017-02-13

Applicant: MEDIATEK INC.

Inventor： Lung-Sheng Tsai ,  Xiangyang Zhuang

IPC: H04W4/00 ,  H04W28/04 ,  H04W24/02 ,  H04B15/00 ,  H04L5/00

Abstract: A method of interference cancellation is proposed. A UE obtains configuration information of a data transmission from a neighboring cell via an interference channel in a mobile communication network. The UE receives radio signals on a set of data resource elements as determined based on the obtained configuration information. The UE then estimates the interference channel corresponding to the data transmission from the neighboring cell based on the received radio signals on the set of data resource elements. Finally, the UE cancels the data transmission from the neighboring cell based on the estimated interference channel.

公开(公告)号：US20180198561A1

公开(公告)日：2018-07-12

申请号：US15865457

申请日：2018-01-09

Applicant: Mediatek Inc.

Inventor： Lung-Sheng Tsai ,  Weidong Yang

IPC: H04L1/00 ,  H04L1/18 ,  H04B7/06 ,  H03M13/35 ,  H04B7/0417 ,  H03M13/13

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 determines a plurality of messages containing channel state information to be reported to a base station. The UE also determines a priority level for each of the plurality of messages based on at least one predetermined rule. The UE further selects one or more messages from the plurality of messages based on priority levels of the plurality of messages. The UE then sends the selected one or more messages to the base station.

公开(公告)号：US20160191174A1

公开(公告)日：2016-06-30

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 ,  H04L5/00 ,  H04L1/18 ,  H04L12/861

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.

Abstract translation: 提出了一种使得UE执行码字级干扰消除（CW-IC）的方法来知道干扰传输块（TB）是新的传输还是重传。 有了这个知识，UE知道存储在软缓冲器中的软通道位是否被丢弃，或者与新获得的软通道位组合。

公开(公告)号：US20160100413A1

公开(公告)日：2016-04-07

申请号：US14868738

申请日：2015-09-29

Applicant: MEDIATEK INC.

Inventor： Chien-Hwa Hwang ,  Pei-Kai Liao ,  Lung-Sheng Tsai

IPC: H04W72/08 ,  H04B7/04 ,  H04W72/04

Abstract: Signaling methods to support robust interference cancellation by obtaining information associated with interfering signals from the network side are provided. The target interference for cancellation is intra-cell interference from MU-MIMO or NOMA operation. A victim receiver receives both desired signal and intra-cell interfering signal. The network may assist the victim receiver by providing information related to the interfering signal. The computational complexity of the victim receiver in blindly detecting the interference signal characteristics is reduced, and the reliability of the signal detection is improved.

Abstract translation: 提供了通过获得与来自网络侧的干扰信号相关联的信息来支持鲁棒干扰消除的信令方法。 用于抵消的目标干扰是来自MU-MIMO或NOMA操作的小区内干扰。 受害者接收机接收期望信号和小区内干扰信号。 网络可以通过提供与干扰信号相关的信息来辅助受害者接收机。 盲目检测干扰信号特性的受扰接收机的计算复杂度降低，提高了信号检测的可靠性。

公开(公告)号：US20150146657A1

公开(公告)日：2015-05-28

申请号：US14555271

申请日：2014-11-26

Applicant: MEDIATEK INC.

Inventor： Lung-Sheng Tsai ,  Xiangyang Zhuang ,  Pei-Kai Liao

IPC: H04W72/08 ,  H04W72/04

CPC classification number: H04B7/0452 ,  H04B1/1027 ,  H04B7/0617 ,  H04B7/0619 ,  H04J11/004 ,  H04J11/005 ,  H04L1/00 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0073 ,  H04W28/06 ,  H04W28/18 ,  H04W72/042

Abstract: A method for a receiver to cancel or suppress co-channel interference with network assistance is provided. The method comprises deriving a first set of parameters related to interfering signals in a mobile communication network; receiving a second set of parameters related to the interfering signals from the network; and cancelling the contribution of interfering signals from the received signal based on the combination of the first set and second set of parameters. In one embodiment, scrambling rules and resource block allocation information are signaled to the victim UE to facilitate Codeword-Level Interference Cancellation (CWIC). While the scrambling rule for control channel is based on UE-specific identity, the scrambling rule for data channel is based on cell-specific identity or other network-configurable identity to facilitate CWIC. In addition, RA-allocation information are signaled to the victim UE in an efficient way.

Abstract translation: 提供了一种用于接收机消除或抑制与网络协助的同频干扰的方法。 该方法包括导出与移动通信网络中的干扰信号有关的第一组参数; 接收与来自网络的干扰信号有关的第二组参数; 并且基于第一组和第二组参数的组合来消除来自接收信号的干扰信号的贡献。 在一个实施例中，加扰规则和资源块分配信息被发送给受害者UE以便于代码字级干扰消除（CWIC）。 虽然控制信道的加扰规则基于UE特定身份，但是数据信道的加扰规则基于小区特定身份或其他网络可配置身份来促进CWIC。 另外，RA分配信息以有效的方式发送给受害者UE。

公开(公告)号：US20250070941A1

公开(公告)日：2025-02-27

申请号：US18948891

申请日：2024-11-15

Applicant: MEDIATEK INC.

Inventor： Lung-Sheng Tsai

IPC: H04L5/00

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 measures a first set of reference signals to determine a first channel state of a first channel between a first TRP and the UE. The UE measures interference received at the UE. The UE sends a first CSI report generated corresponding to the first channel state. The UE sends a second CSI report generated corresponding to the interference.

公开(公告)号：US20240333348A1

公开(公告)日：2024-10-03

申请号：US18432137

申请日：2024-02-05

Applicant: MediaTek Inc.

Inventor： Lung-Sheng Tsai

IPC: H04B7/0456

CPC classification number: H04B7/0456

Abstract: Examples pertaining to transceiving capability augmentation of a communication apparatus in mobile communications are described. A user equipment (UE) transmits a first radio frequency (RF) signal carrying a first baseband signal in a first frequency band to a network node and transmits a second RF signal carrying a second baseband signal in a second frequency band to a collaborating communication apparatus. The first baseband signal and the second baseband signal are identical, and the first frequency band is different from the second frequency band.

公开(公告)号：US20240178907A1

公开(公告)日：2024-05-30

申请号：US18517144

申请日：2023-11-22

Applicant: MEDIATEK INC.

Inventor： Lung-Sheng Tsai

IPC: H04B7/155 ,  H04W72/044 ,  H04W72/20

CPC classification number: H04B7/15542 ,  H04W72/044 ,  H04W72/20

Abstract: A base station determines N sets of data signals to be transmitted to a UE via N repeaters. Each set of the N sets of data signals is associated with each of the N repeaters and carries data of a plurality of layers. The base station transmits first control information to the N repeaters. The first control information indicates a first resource allocation for data reception at each repeater on a first time-frequency resource. The base station transmits N resource mapping rules to the N repeaters. The N resource mapping rules indicate each mapping from the first resource allocation to a second resource allocation for forwarding each of the N sets of data signals. Each of the N sets of data signals is received at each repeater on the first time-frequency resource. Each of the N sets of data signals is forwarded on a second time-frequency resource.

公开(公告)号：US20240007146A1

公开(公告)日：2024-01-04

申请号：US18205624

申请日：2023-06-05

Applicant: Mediatek Inc.

Inventor： Lung-Sheng Tsai

IPC: H04B7/024 ,  H04L27/26

CPC classification number: H04B7/024 ,  H04L27/26025

Abstract: A wireless device has MR RX antennas and MT TX antennas. The wireless device divides the MR RX antennas into two or more RX antenna groups for receiving signals from a UE on a first carrier frequency. The wireless device receives first signals carried on the first carrier frequency at each RX antenna group during a part of or all of a set of first transmission time intervals of a SCS. The first transmission time intervals correspond to a second transmission time interval of a second SCS. The wireless device combines the first signals received by each RX antenna group during the set of first transmission time intervals linearly based on predetermined coefficients. The wireless device maps the combined first signals to second signals carried on a second carrier frequency. The wireless device transmits the second signals carried on the second carrier frequency.