公开(公告)号：US20180367244A1

公开(公告)日：2018-12-20

申请号：US16009504

申请日：2018-06-15

Applicant: MediaTek Inc.

Inventor： Weidong Yang ,  Bo-Si Chen

IPC: H04L1/00 ,  H04L1/18 ,  H04L5/00

Abstract: Various solutions for uplink partial sub-frame transmission with respect to user equipment and network apparatus in mobile communications are described. An apparatus may map a plurality of code blocks to radio resources by a frequency-first manner. The apparatus may determine an uplink transmission starting point. The apparatus may puncture the code blocks before the uplink transmission starting point. The apparatus may transmit at least one complete code block after the uplink transmission starting point.

公开(公告)号：US20180248594A1

公开(公告)日：2018-08-30

申请号：US15967662

申请日：2018-05-01

Applicant: MEDIATEK INC.

Inventor： Chien-Hwa Hwang ,  Lung-Sheng Tsai ,  Yi-Ju Liao ,  Pei-Kai Liao ,  Weidong Yang

IPC: H04B7/0452

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

公开(公告)号：US20180227942A1

公开(公告)日：2018-08-09

申请号：US15888243

申请日：2018-02-05

Applicant: Mediatek Inc.

Inventor： Chien Hwa Hwang ,  Wei-De Wu ,  Pei-Kai Liao ,  Weidong Yang ,  Chia-Wei Tai ,  Shou-Tung Tsai

IPC: H04W72/12 ,  H04L1/00

CPC classification number: H04W72/042 ,  H04L1/0045 ,  H04L1/0061 ,  H04L1/0072 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0048 ,  H04L5/0055 ,  H04W72/1289 ,  H04W88/08

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a base station. The base station generates a plurality of sets of bits representing downlink control information directed to a plurality of UEs. The each set of bits of the plurality of sets of bits includes a number of information bits and a number of protection bits. The base station also combines the plurality of sets of bits to generate combined bits. The base station further encodes the combined bits to generate encoded bits. The base station subsequently transmits the encoded bits.

公开(公告)号：US20180227934A1

公开(公告)日：2018-08-09

申请号：US15889079

申请日：2018-02-05

Applicant: MediaTek Inc.

Inventor： Weidong Yang ,  Chien-Hwa Hwang

IPC: H04W72/12 ,  H04W72/14 ,  H04W72/04 ,  H04W52/14

CPC classification number: H04W72/121 ,  H04W52/146 ,  H04W52/18 ,  H04W72/0446 ,  H04W72/14

Abstract: Various solutions for group common physical downlink control channel (GC PDCCH) design with respect to user equipment and network apparatus in mobile communications are described. An apparatus may monitor a GC PDCCH. The apparatus may receive a slot type indication for at least one slot from the GC PDCCH. The apparatus may further perform at least one of transmission and reception according to the slot type indication.

公开(公告)号：US09979522B2

公开(公告)日：2018-05-22

申请号：US15281030

申请日：2016-09-29

Applicant: MEDIATEK INC.

Inventor： Chien-Chang Li ,  Weidong Yang ,  Pei-Kai Liao ,  Bo-Si Chen

IPC: H04W48/16 ,  H04W72/04 ,  H04W28/26 ,  H04L5/00 ,  H04W88/02

CPC classification number: H04L5/0048 ,  H04W48/16 ,  H04W72/042 ,  H04W72/0446 ,  H04W88/02

Abstract: Methods and apparatus are provided for multiplexing DRS within a transmission burst for opportunistic spectrum access. In one novel aspect, DRS is not transmitted in a fractional subframe within a TXOP. In one embodiment, if the starting fractional subframe, which contains initial signal, occurs in a configured DMTC, DRS is transmitted in the first subframe next to the starting fractional subframe. In another embodiment, if DMTC starts from a complete subframe within a TXOP, DRS is transmitted in the first candidate position within a DMTC. In another novel aspect, in the DRS subframe, PDSCH is allocated in the PRBs outside the central PRBs (six or twenty-five PRBs). In one embodiment, the reservation signal can be used to satisfy the requirement of occupied bandwidth and continuity transmission. In another embodiment, the free REs in central PRBs carry the system information when required on the unlicensed band.

公开(公告)号：US20170238334A1

公开(公告)日：2017-08-17

申请号：US15432022

申请日：2017-02-14

Applicant: MEDIATEK INC.

Inventor： Weidong Yang ,  Bo-Si Chen ,  Chien-Chang Li ,  Yih-Shen Chen ,  Pavan Santhana Krishna Nuggehalli

IPC: H04W72/12 ,  H04W74/08

CPC classification number: H04W74/0816 ,  H04W74/006 ,  H04W74/0808

Abstract: A method of dynamic spectrum sharing mechanism called listen-before-talk (LBT) is proposed for uplink transmission in Licensed Assisted Access (LAA). A maximum channel occupancy time (MCOT) including downlink (DL) transmission from one eNB and uplink (UL) transmission to the same eNB is introduced. A transmission sequence is defined as a number of subframes including possible partial subframes for DL and/or UL within a MCOT. The transmission in the first subframe among the transmission sequence is conducted after a Category 4 LBT. The transmission sequence within the MCOT can be initiated by either a DL transmission or an UL transmission. After the first subframe in a transmission sequence, LBT for another transmission is a fast DL LBT and/or fast UL LBT. Further, a Category 4 LBT can be converted to a short LBT (e.g., one shot CCA) for more efficient channel access.

公开(公告)号：US20170055293A1

公开(公告)日：2017-02-23

申请号：US15238610

申请日：2016-08-16

Applicant: MEDIATEK INC.

Inventor： Weidong Yang ,  Chien-Chang Li ,  Pei-Kai Liao ,  Bo-Si Chen

IPC: H04W74/08 ,  H04L12/851

CPC classification number: H04L47/24 ,  H04L5/0035 ,  H04W74/002

Abstract: A method of distributed control achieving fair radio resource access is proposed. The parameters used in a listen-before-talk (LBT) channel access procedure that are used to control how aggressively a node contends for channel access can be called as “Channel Access Transmission Parameters” or CAT parameters. The proposed method uses randomized CAT parameters for each traffic type, and then obtains prioritized access for some nodes at any given time and fair access averaged over a period of time. More specifically, a transmitting node can use more than one set of CAT parameters even for the same traffic type instead of conventional only use one set of CAT parameters for one traffic type. The transmitting node can use a set of CAT parameters according to a fixed schedule, a random rule, or a pseudo-random rule.

Abstract translation: 提出了一种实现公平无线电资源访问的分布式控制方法。 在用于控制节点竞争通道接入的积极性的用于听即演（LBT）通道访问过程中使用的参数可被称为“通道访问传输参数”或CAT参数。 所提出的方法针对每个流量类型使用随机CAT参数，然后在任何给定时间获得一些节点的优先级访问，并在一段时间内平均访问。 更具体地，即使对于相同的业务类型，发送节点也可以使用多于一组的CAT参数集，而不是传统的仅为一种业务类型使用一组CAT参数。 发送节点可以根据固定的时间表，随机规则或伪随机规则使用一组CAT参数。