公开(公告)号：US20190123883A1

公开(公告)日：2019-04-25

申请号：US16230135

申请日：2018-12-21

申请人： TOUFIQUL ISLAM ,  KELVIN KAR KIN AU ,  JIANGLEI MA ,  MOHAMMADHADI BALIGH

发明人： TOUFIQUL ISLAM ,  KELVIN KAR KIN AU ,  JIANGLEI MA ,  MOHAMMADHADI BALIGH

IPC分类号： H04L5/00 ,  H04W72/04 ,  H04L27/26

摘要： Systems and methods are disclosed in which the start time of a downlink transmission to a user equipment (UE) is more flexible. For example, instead of beginning at predetermined starting points in a frame or subframe, a downlink transmission may instead possibly begin every x OFDM symbols, where x may be as small as one OFDM symbol.

公开(公告)号：US20180083758A1

公开(公告)日：2018-03-22

申请号：US15709018

申请日：2017-09-19

申请人： TOUFIQUL ISLAM ,  KELVIN KAR KIN AU ,  JIANGLEI MA ,  MOHAMMADHADI BALIGH

发明人： TOUFIQUL ISLAM ,  KELVIN KAR KIN AU ,  JIANGLEI MA ,  MOHAMMADHADI BALIGH

IPC分类号： H04L5/00 ,  H04W72/04 ,  H04L27/26

CPC分类号： H04L5/0083 ,  H04L5/0053 ,  H04L5/0082 ,  H04L27/2602 ,  H04W72/0406 ,  H04W72/044 ,  H04W88/02 ,  H04W88/08

摘要： Systems and methods are disclosed in which the start time of a downlink transmission to a user equipment (UE) is more flexible. For example, instead of beginning at predetermined starting points in a frame or subframe, a downlink transmission may instead possibly begin every x OFDM symbols, where x may be as small as one OFDM symbol.

公开(公告)号：US20180063749A1

公开(公告)日：2018-03-01

申请号：US15675432

申请日：2017-08-11

申请人： TOUFIQUL ISLAM ,  MOHAMMADHADI BALIGH ,  KELVIN KAR KIN AU

发明人： TOUFIQUL ISLAM ,  MOHAMMADHADI BALIGH ,  KELVIN KAR KIN AU

IPC分类号： H04W28/18 ,  H04W72/04 ,  H04L1/18 ,  H04B7/26 ,  H04W28/06

CPC分类号： H04W28/18 ,  H04B7/2656 ,  H04L1/0047 ,  H04L1/0068 ,  H04L1/0075 ,  H04L1/1812 ,  H04L1/1893 ,  H04L5/0044 ,  H04L5/0053 ,  H04L5/0094 ,  H04W28/06 ,  H04W72/042 ,  H04W72/1226 ,  H04W72/1289

摘要： Resources used for downlink communication may be partitioned by the base station so that a portion of the resources is reserved for the downlink transmission of low latency data. However, low latency data may be bursty or sporadic in nature, and may be transmitted in short packets. Therefore, there may not always be low latency data at the base station that needs to be transmitted using all of the low latency resources. System and methods are therefore disclosed in which the base station opportunistically schedules, on the low latency resources, latency tolerant data for one or more latency tolerant UEs. When latency tolerant data is scheduled on the low latency resources, signaling is used to indicate if the latency tolerant transmission on the low latency resources is modified.

公开(公告)号：US20180035458A1

公开(公告)日：2018-02-01

申请号：US15223690

申请日：2016-07-29

申请人： TOUFIQUL ISLAM ,  KELVIN KAR KIN AU ,  MOHAMMADHADI BALIGH

发明人： TOUFIQUL ISLAM ,  KELVIN KAR KIN AU ,  MOHAMMADHADI BALIGH

IPC分类号： H04W74/04 ,  H04W72/08 ,  H04L5/00

CPC分类号： H04L1/16 ,  H04L5/0058 ,  H04L5/0096 ,  H04W72/1289 ,  H04W74/0808

摘要： Feedback from a base station is used to reduce retransmissions of a grant-free UE where the SINR of an initial transmission from the grant-free UE is higher than a threshold. Feedback from a base station is also used to adjust transmission by grant-based UEs in resources that overlap with those also available to grant-free UEs.

公开(公告)号：US20170331645A1

公开(公告)日：2017-11-16

申请号：US15588499

申请日：2017-05-05

申请人： MOHAMMADHADI BALIGH ,  KEYVAN ZARIFI ,  JIANGLEI MA ,  KELVIN KAR KIN AU

发明人： MOHAMMADHADI BALIGH ,  KEYVAN ZARIFI ,  JIANGLEI MA ,  KELVIN KAR KIN AU

IPC分类号： H04L25/02 ,  H04L5/00

摘要： Systems and methods of assigning channel state information-reference symbol (CSI-RS) ports to user equipment are provided. In addition resource configurations for transmission of CSI-RS are provided, and methods of mapping CSI-RS sequences to such resources are provided.

公开(公告)号：US20190089584A1

公开(公告)日：2019-03-21

申请号：US16107181

申请日：2018-08-21

申请人： TOUFIQUL ISLAM ,  YU CAO ,  JIANGLEI MA ,  HUA XU ,  AMINE MAAREF ,  LIQING ZHANG ,  KELVIN KAR KIN AU

发明人： TOUFIQUL ISLAM ,  YU CAO ,  JIANGLEI MA ,  HUA XU ,  AMINE MAAREF ,  LIQING ZHANG ,  KELVIN KAR KIN AU

IPC分类号： H04L12/24 ,  H04W72/04

CPC分类号： H04L41/0803 ,  H04W72/042 ,  H04W72/0446 ,  H04W88/08

摘要： Systems and methods are provided that facilitate multiple switching points within a slot. A slot format indication is conveyed to a user equipment which indicates which symbols within a slot are uplink, downlink or unknown. Some formats feature half-slot switching meaning that a switch from uplink to downlink transmission takes place twice within a slot. Switching on a more frequent basis can deliver improved latency.

公开(公告)号：US20170318598A1

公开(公告)日：2017-11-02

申请号：US15142638

申请日：2016-04-29

申请人： TOUFIQUL ISLAM ,  KELVIN KAR KIN AU ,  JIANGLEI MA

发明人： TOUFIQUL ISLAM ,  KELVIN KAR KIN AU ,  JIANGLEI MA

IPC分类号： H04W72/12 ,  H04W72/04

CPC分类号： H04W72/1215 ,  H04W72/04 ,  H04W72/1268 ,  H04W74/04 ,  H04W74/08

摘要： Systems and methods of scheduling grant-based traffic and mapping resources for grant-free traffic are provided. Grant-based traffic is scheduled in a first frequency partition, and grant-free traffic is mapped in a second frequency partition. In a first option, grant-based traffic is also scheduled in part of the first partition, but in a limited manner that ensures a given device's transmission and retransmissions do not all experience interference with the grant-based traffic. In another option, some grant-free traffic is mapped to part of the second partition and is spread in frequency across the second partition.

公开(公告)号：US20200304344A1

公开(公告)日：2020-09-24

申请号：US16893905

申请日：2020-06-05

申请人： MOHAMMADHADI BALIGH ,  KEYVAN ZARIFI ,  JIANGLEI MA ,  KELVIN KAR KIN AU

发明人： MOHAMMADHADI BALIGH ,  KEYVAN ZARIFI ,  JIANGLEI MA ,  KELVIN KAR KIN AU

IPC分类号： H04L25/02 ,  H04L27/26 ,  H04L5/00

摘要： Systems and methods of assigning channel state information-reference symbol (CSI-RS) ports to user equipment are provided. In addition resource configurations for transmission of CSI-RS are provided, and methods of mapping CSI-RS sequences to such resources are provided.

公开(公告)号：US20180048435A1

公开(公告)日：2018-02-15

申请号：US15637842

申请日：2017-06-29

申请人： TOUFIQUL ISLAM ,  KELVIN KAR KIN AU ,  JIANGLEI MA ,  LIQING ZHANG

发明人： TOUFIQUL ISLAM ,  KELVIN KAR KIN AU ,  JIANGLEI MA ,  LIQING ZHANG

IPC分类号： H04L5/00 ,  H04W72/04 ,  H04W72/12 ,  H04W72/00

摘要： Systems and method for defining sub-bands are provided. Each sub-band has a respective sub-carrier spacing, and at least one sub-band portion. Each sub-band portion has a channelization configuration including a resource block size configuration and a sub-band portion bandwidth. The sub-bands are allocated based on a sub-band configuration framework that includes a preconfigured set of possible sub-carrier spacings, a preconfigured set of possible resource block sizes, and a preconfigured set of possible sub-band portion bandwidths. In some embodiments, to improve bandwidth utilization, the channelization configuration for a given sub-band configures a plurality of resource blocks having a first number of sub-carriers and an additional resource block having a number of sub-carriers other than the first number. A bandwidth portion may include two bandwidth portions having different channelizations with differing numbers of sub-carriers per resource block such that more useful sub-carriers are used than would be possible if only resource blocks having a largest of the differing numbers of sub-carriers were used.

公开(公告)号：US20170156140A1

公开(公告)日：2017-06-01

申请号：US14952983

申请日：2015-11-26

申请人： TOUFIQUL ISLAM ,  KELVIN KAR KIN AU ,  JIANGLEI MA ,  LIQING ZHANG

发明人： TOUFIQUL ISLAM ,  KELVIN KAR KIN AU ,  JIANGLEI MA ,  LIQING ZHANG

IPC分类号： H04W72/04 ,  H04L27/26

CPC分类号： H04W72/0446 ,  H04L5/0007 ,  H04L5/0039 ,  H04L5/0044 ,  H04L5/0064 ,  H04L5/0091 ,  H04L27/2601

摘要： Systems and methods for transmitting and receiving resource blocks using OFDM-based signals are provided. The OFDM-based signal has a number of sub-bands, and employs a respective numerology in each sub-band. Each numerology has a respective subcarrier spacing and OFDM symbol duration. For a given receiver, content is mapped to resource blocks within an assigned one of the sub-bands, using the sub-carrier spacing of the sub-band.