公开(公告)号：US20210143956A1

公开(公告)日：2021-05-13

申请号：US17090896

申请日：2020-11-06

Applicant: MEDIATEK INC.

Inventor： Hsuan-Li Lin ,  Zhixun Tang ,  Tsang-Wei Yu

IPC: H04L5/00 ,  H04W72/04

Abstract: A method is provided for TCI switching related to CSI-RS measurement and reporting, spatial relation switch for SRS, PUSCH, and PUCCH. The PDSCH and PDCCH are received according to the QCLed aperiodic CSI-RS. When the AP CSI-RS is configured as the reference in the TCI of PDSCH, UE may apply the updated TCI for the PDSCH, after the corresponding aperiodic report has been received at the network. Spatial relation switch is based on the valid measurement report. The spatial relation switch delay of aperiodic SRS can be performed when UE has sent the corresponding measurement report to the network.

公开(公告)号：US20190090289A1

公开(公告)日：2019-03-21

申请号：US16124443

申请日：2018-09-07

Applicant: MediaTek Inc.

Inventor： Chien-Chun Huang-Fu ,  Tsang-Wei Yu ,  Tao Chen ,  I-Kang Fu

IPC: H04W76/10 ,  H04L12/24 ,  H04W72/04 ,  H04L29/08

Abstract: Various examples and schemes pertaining to enhanced cell selection mechanisms in mobile communications are described. A user equipment (UE) performs a cell selection or reselection procedure to select a cell of a wireless network and establishes a wireless connection with the selected cell. In performing the cell selection or reselection procedure, the UE determines a frequency band and a subcarrier spacing (SCS) configuration by checking a profile, and the UE performs the cell selection or reselection procedure in the frequency band based on the SCS configuration.

公开(公告)号：US20180368035A1

公开(公告)日：2018-12-20

申请号：US16009531

申请日：2018-06-15

Applicant: MEDIATEK INC.

Inventor： Din-Hwa Huang ,  Hsuan-Li Lin ,  Tsang-Wei Yu ,  Yih-Shen Chen ,  Chiao Yao Chuang

IPC: H04W36/00 ,  H04W72/04

Abstract: Apparatus and methods are provided for RRM measurement in the NR network. In one novel aspect, the RRM measurement is configured with one measurement gap for SS block and CSI-RS. In one embodiment, an extended MGL (eMGL) is configured such that the SS block and CSI-RS is measurement within one measurement gap. In another embodiment, the shorter MGL (sMGL) that is shorter than the standard MGL is configured. In another novel aspect, the CSI-RS is allocated adjacent to the SS blocks such that one measurement gap is configured for both the SS block and CSI-RS measurement. In another novel aspect, the CSI-RS measurement is conditionally configured. In yet another novel aspect, the UE decodes the time index of the SS block conditionally.

公开(公告)号：US20180368034A1

公开(公告)日：2018-12-20

申请号：US16009515

申请日：2018-06-15

Applicant: Mediatek Inc.

Inventor： Hsuan-Li Lin ,  Tsang-Wei Yu ,  Chiao Yao Chuang

IPC: H04W36/00 ,  H04W36/38

Abstract: Apparatus and methods are provided for RRM measurement in the NR network. In one novel aspect, the RRM measurement is configured with one measurement gap for SS block and CSI-RS. In one embodiment, an extended MGL (eMGL) is configured such that the SS block and CSI-RS is measurement within one measurement gap. In another embodiment, the shorter MGL (sMGL) that is shorter than the standard MGL is configured. In another novel aspect, the CSI-RS is allocated adjacent to the SS blocks such that one measurement gap is configured for both the SS block and CSI-RS measurement. In another novel aspect, the CSI-RS measurement is conditionally configured. In yet another novel aspect, the UE decodes the time index of the SS block conditionally.

公开(公告)号：US10104674B2

公开(公告)日：2018-10-16

申请号：US15341846

申请日：2016-11-02

Applicant: MEDIATEK INC.

Inventor： Chien-Hwa Hwang ,  Lung-Sheng Tsai ,  Yi-Ju Liao ,  Tsang-Wei Yu ,  Pei-Kai Liao

IPC: H04W4/00 ,  H04W72/08 ,  H04L25/02 ,  H04J11/00 ,  H04L1/00 ,  H04B7/0452 ,  H04W88/08 ,  H04W92/10

Abstract: A new air interface that is interference cancellation friendly is proposed. In one novel aspect, a novel code rate assignment with rate splitting is proposed. In one embodiment, a base station decomposes a codeword {x1} into two codewords {x1a} and {x1b}. The two codewords are applied with different code rates and/or modulation orders. More specifically, the code rate or modulation order of codeword {x1a} is set appropriately so that a victim UE can decode and cancel {x1a} under the channel quality of the victim UE. Typically, the channel quality of a victim UE is poorer than the channel quality of the intended UE. As a result, the MCS for {x1a} can be lower than the MCS for {x1b} such that the victim UE is able to apply CWIC to decode and cancel {x1a}.

公开(公告)号：US20170048841A1

公开(公告)日：2017-02-16

申请号：US15235745

申请日：2016-08-12

Applicant: MEDIATEK INC.

Inventor： Chien-Hwa Hwang ,  Yi-Ju Liao ,  Tsang-Wei Yu ,  Lung-Sheng Tsai ,  Pei-Kai Liao

IPC: H04W72/04 ,  H04B7/04 ,  H04L5/00

CPC classification number: H04B7/0452 ,  H04L5/0044 ,  H04L5/0048 ,  H04L27/3488

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，并为接收机实现高解调性能。 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。