公开(公告)号：US20160227481A1

公开(公告)日：2016-08-04

申请号：US14609707

申请日：2015-01-30

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

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

IPC分类号： H04W52/02

CPC分类号： H04W52/0209 ,  H04W52/0216 ,  H04W52/0229 ,  H04W68/00 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/146 ,  Y02D70/164

摘要： An apparatus and method for a wireless device to receive data in an eco state is provided. According to an embodiment of the disclosure, upon determining that data is to be transmitted to the wireless device in the eco state, a network node operates to transmit a unicast notification message to the wireless device in order to inform the wireless device of the impending data transmission. According to another embodiment of the disclosure, in response to receiving the unicast notification message, the wireless device operates to receive the data in accordance with the unicast notification message. To this end, the wireless device might for example try to receive data for a time period following the unicast notification message. Meanwhile, the wireless device may remain in the eco state.

摘要翻译： 提供了一种用于无线设备接收环境状态的数据的设备和方法。 根据本公开的实施例，一旦确定将数据以环境状态发送到无线设备，则网络节点操作以将无线设备的单播通知消息发送到无线设备以通知即将到来的数据 传输。 根据本公开的另一实施例，响应于接收到单播通知消息，无线设备操作以根据单播通知消息接收数据。 为此，无线设备可能例如尝试在单播通知消息之后的一段时间内接收数据。 同时，无线设备可以保持在生态状态。

公开(公告)号：US20170290052A1

公开(公告)日：2017-10-05

申请号：US15088607

申请日：2016-04-01

申请人： LIQING ZHANG ,  YU CAO

发明人： LIQING ZHANG ,  YU CAO

IPC分类号： H04W74/00

CPC分类号： H04W74/004 ,  H04J11/004 ,  H04L1/1812 ,  H04L1/1896

摘要： System and methods are disclosed in which pilots are used to assist in identifying grant-free uplink transmissions originating from the same UE. In one embodiment, a base station receives a grant-free uplink transmission that carries initial data from a user equipment and an initial pilot. The initial pilot is successfully decoded and the initial data is unsuccessfully decoded. The successfully decoded initial pilot and the unsuccessfully decoded initial data are stored in memory. Another grant-free uplink transmission carrying retransmission data from the user equipment and a retransmission pilot is then received. The retransmission pilot is successfully decoded and used to identify the successfully decoded initial pilot in the memory and the unsuccessfully decoded initial data. The retransmission data and the unsuccessfully decoded initial data are used to successfully decode the initial data.

公开(公告)号：US20210328725A1

公开(公告)日：2021-10-21

申请号：US16840746

申请日：2020-04-06

申请人： AMAN JASSAL ,  HUA XU ,  LIQING ZHANG

发明人： AMAN JASSAL ,  HUA XU ,  LIQING ZHANG

IPC分类号： H04L1/18

摘要： Hybrid Automatic Repeat Request (HARQ) retransmissions based on User Equipment (UE) cooperation involves a first UE receiving a transmission comprising a data block that is destined for a second UE, and transmitting the data block toward the second UE according to a data block retransmission mechanism to enable the second UE to identify the data block transmitted from the first UE as being one of a plurality of concurrent transmissions of the data block according to the data block retransmission mechanism. The concurrent transmissions of the data block are processable by the second UE in combination to determine a reception status of the data block.

公开(公告)号：US20190363834A1

公开(公告)日：2019-11-28

申请号：US16533994

申请日：2019-08-07

申请人： YU CAO ,  LIQING ZHANG

发明人： YU CAO ,  LIQING ZHANG

IPC分类号： H04L1/18 ,  H04L1/00

摘要： Systems and methods are disclosed for performing hybrid automatic repeat request (HARQ) for grant-free uplink transmissions. Some of the systems and methods disclosed herein may address problems such as how to perform acknowledgement (ACK) and/or negative acknowledgement (NACK), how to determine and signal retransmission timing, how to determine the transmission/retransmission attempt and the redundancy version (RV), and/or how to perform the HARQ combining.

公开(公告)号：US20180309553A1

公开(公告)日：2018-10-25

申请号：US15495308

申请日：2017-04-24

申请人： YU CAO ,  MOHAMMADHADI BALIGH ,  LIQING ZHANG

发明人： YU CAO ,  MOHAMMADHADI BALIGH ,  LIQING ZHANG

IPC分类号： H04L5/00 ,  H04W72/04

摘要： In a wireless communication system, user equipments (UEs) may be partitioned into different groups, e.g. based on spatial separation. UEs may use multiple access (MA) signatures that have low or no correlation to each other if the UEs are in the same group. The MA signatures used by one group of UEs may be more correlated with the MA signatures used by another group of UEs. If the UEs are partitioned into the different groups based on spatial separation, then the spatial separation between the different groups may assist in increasing the reliability of detection if two UEs in different groups use correlated MA signatures.

公开(公告)号：US20170288817A1

公开(公告)日：2017-10-05

申请号：US15470455

申请日：2017-03-27

申请人： YU CAO ,  LIQING ZHANG

发明人： YU CAO ,  LIQING ZHANG

IPC分类号： H04L1/08 ,  H04L1/18

CPC分类号： H04L1/1812 ,  H04L1/0079 ,  H04L1/1819 ,  H04L1/1845 ,  H04L1/1887

摘要： Systems and methods are disclosed for performing hybrid automatic repeat request (HARQ) for grant-free uplink transmissions. Some of the systems and methods disclosed herein may address problems such as how to perform acknowledgement (ACK) and/or negative acknowledgement (NACK), how to determine and signal retransmission timing, how to determine the transmission/retransmission attempt and the redundancy version (RV), and/or how to perform the HARQ combining.

公开(公告)号：US20170215170A1

公开(公告)日：2017-07-27

申请号：US15006772

申请日：2016-01-26

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

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

IPC分类号： H04W72/04 ,  H04L27/26

CPC分类号： H04W72/04 ,  H04L5/0044 ,  H04L5/0046 ,  H04L5/0053 ,  H04L5/0064 ,  H04L5/0092 ,  H04L5/0094 ,  H04L27/2601 ,  H04L27/2602

摘要： Systems and apparatus for assigning sub-bands to numerologies are provided. A system bandwidth is divided into bandwidth portions, and the bandwidth portions are used as the unit of assignment for assigning sub-bands to numerologies. Systems and methods are also provided for allocating resource blocks over a bandwidth such as a sub-band. The available bandwidth is divided into sub-band portions, and the bandwidth portions are used as the unit of allocation for allocating resource blocks to user equipment.

公开(公告)号：US20190036655A1

公开(公告)日：2019-01-31

申请号：US16151920

申请日：2018-10-04

申请人： YU CAO ,  LIQING ZHANG

发明人： YU CAO ,  LIQING ZHANG

IPC分类号： H04L1/18 ,  H04L1/00

摘要： Systems and methods are disclosed for performing hybrid automatic repeat request (HARQ) for grant-free uplink transmissions. Some of the systems and methods disclosed herein may address problems such as how to perform acknowledgement (ACK) and/or negative acknowledgement (NACK), how to determine and signal retransmission timing, how to determine the transmission/retransmission attempt and the redundancy version (RV), and/or how to perform the HARQ combining.

公开(公告)号：US20180352537A1

公开(公告)日：2018-12-06

申请号：US15989902

申请日：2018-05-25

申请人： JIAYIN ZHANG ,  LIQING ZHANG

发明人： JIAYIN ZHANG ,  LIQING ZHANG

IPC分类号： H04W72/04 ,  H04W74/08 ,  H04W72/14 ,  H04W72/12

摘要： Methods and devices for grant-based uplink transmission in an unlicensed band are provided. Uplink grant messages are transmitted to electronic devices (EDs) in order to indicate time-frequency resources that are allocated to the EDs for uplink transmission in an unlicensed spectrum band. For a given ED, in the event that a first listen-before-talk (LBT) operation for the time-frequency resource allocated to the ED fails, the ED performs a second LBT operation within the allocated time-frequency resource at a start time based on a start point configuration within the allocated time-frequency resource. If the second LBT operation succeeds, the ED transmits an uplink transmission within a remaining portion of the allocated time-frequency resource that includes an activation signal to indicate a start of the uplink transmission, and uplink payload data.