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.

公开(公告)号：US20210160907A1

公开(公告)日：2021-05-27

申请号：US17077464

申请日：2020-10-22

申请人： YONGXIA LYU ,  JIANGLEI MA ,  MING JIA ,  LIQING ZHANG ,  PEIYING ZHU

发明人： YONGXIA LYU ,  JIANGLEI MA ,  MING JIA ,  LIQING ZHANG ,  PEIYING ZHU

IPC分类号： H04W72/12 ,  H04W72/14 ,  H04L27/26 ,  H04W80/02 ,  H04W76/27 ,  H04W72/04

摘要： Current frame structures in Long-Term Evolution (LTE) and New Radio (NR) place some restrictions on the symbols transmitted in the frame, e.g. restrictions related to the duration of each symbol. Embodiments are disclosed in which multi-carrier symbols and/or single-carrier symbol blocks have configurable parameters, such as configurable length and/or configurable location, thereby allowing for more flexibility in the scheduling and transmission of the symbols and/or symbol blocks. Some embodiments aim to implement the configurable parameters in a way that tries to reduce signaling overhead.

公开(公告)号：US20210144781A1

公开(公告)日：2021-05-13

申请号：US17087733

申请日：2020-11-03

申请人： HUA XU ,  JIANGLEI MA ,  LIQING ZHANG

发明人： HUA XU ,  JIANGLEI MA ,  LIQING ZHANG

IPC分类号： H04W76/10 ,  H04W8/00 ,  H04B7/155

摘要： One embodiment of coordinated multiple relay link wireless communication with User Equipment (UE) cooperation involves coordinating, with a primary relay link between a UE and a wireless communication network, configuration of a secondary relay link between the UE and the wireless communication network; and communicating signaling to enable configuration of the secondary relay link in accordance with the coordinating. After the primary relay link and the secondary relay link have been configured, communications with the UE are coordinated over the primary relay link and the secondary relay link. Other embodiments may involve first and second relay links for a UE, and such relay links for a UE may be between the UE and a wireless communication network, or between the UE and another UE in the case of UE-to-UE relay links.

公开(公告)号：US20190045435A1

公开(公告)日：2019-02-07

申请号：US16152491

申请日：2018-10-05

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

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.

公开(公告)号：US20180199359A1

公开(公告)日：2018-07-12

申请号：US15830928

申请日：2017-12-04

申请人： YU CAO ,  LIQING ZHANG ,  JIANGLEI MA

发明人： YU CAO ,  LIQING ZHANG ,  JIANGLEI MA

IPC分类号： H04W72/12 ,  H04W72/14 ,  H04W28/04 ,  H04L1/18

摘要： Methods and systems are provided for signaling for semi-static configuration in grant free uplink transmissions. Radio resource control (RRC) signaling is used to provide information from a base station to a user equipment (UE) that configure the grant free transmission resource to be used by the UE. In some implementations, the RRC signaling may be used in conjunction with system information that is transmitted to all UEs and/or Downlink Control Information (DCI) that the UE needs to access subsequent to the RRC signaling. In some implementations, the DCI includes an activation or deactivation indicator that the UE monitors to determine when the UE is allowed to transmit to the BS or should stop transmitting. Implementations allow for grant free transmission resources to be configured on an individual user based and a group basis.

公开(公告)号：US20180176945A1

公开(公告)日：2018-06-21

申请号：US15674426

申请日：2017-08-10

申请人： YU CAO ,  LIQING ZHANG ,  JIANGLEI MA

发明人： YU CAO ,  LIQING ZHANG ,  JIANGLEI MA

IPC分类号： H04W72/14 ,  H04W72/12

摘要： There may be situations in which it is beneficial for a user equipment to switch between grant-free uplink wireless transmissions and grant-based uplink wireless transmissions. Systems and methods are disclosed that help facilitate grant-based and grant-free uplink wireless communications, and the switching between the two. For example, systems and methods for mitigating collision between a granted uplink wireless transmission and a grant-free uplink wireless transmission are disclosed herein.

公开(公告)号：US20180139773A1

公开(公告)日：2018-05-17

申请号：US15588440

申请日：2017-05-05

申请人： JIANGLEI MA ,  LIQING ZHANG

发明人： JIANGLEI MA ,  LIQING ZHANG

IPC分类号： H04W72/12 ,  H04W72/04

CPC分类号： H04W72/1284 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0042 ,  H04L5/0044 ,  H04L5/0053 ,  H04L5/0094 ,  H04L27/26 ,  H04L27/2602 ,  H04W72/0453

摘要： A method for data receiving at a base station is provided. The base station receives data using a first transmission resource in a first symbol of an uplink control channel from a first UE. The base station receives UL data or control information using a second transmission resource in a second symbol of the uplink control channel from a second UE as well. The first symbol and the second symbol have different numerologies at a same sub band.

公开(公告)号：US20170332335A1

公开(公告)日：2017-11-16

申请号：US15593948

申请日：2017-05-12

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： H04W52/38 ,  H04W56/00

CPC分类号： H04W52/38 ,  H04W52/242 ,  H04W52/50 ,  H04W56/001 ,  H04W56/0015

摘要： Systems and methods are provided that allow a transmit receive point (TRP) that is a member of a group of TRPs to convey a characteristic of the group through the transmission of a synchronization sequence. A transmit receive point in a first group of TRPs transmits with a first synchronization sequence. A TRP in a second group of TRPs transmits with a second synchronization sequence, the first and second synchronization sequences being different from each other. The TRPs of the first group share a common first characteristic and the TRPs of the second group share a common second characteristic. The transmission of the first synchronization sequence conveys the first common characteristic, and the transmission of the second synchronization sequence conveys the second common characteristic.

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：US20240022993A1

公开(公告)日：2024-01-18

申请号：US18475327

申请日：2023-09-27

申请人： HUA XU ,  JIANGLEI MA ,  LIQING ZHANG

发明人： HUA XU ,  JIANGLEI MA ,  LIQING ZHANG

IPC分类号： H04W40/22 ,  H04L45/74

CPC分类号： H04W40/22 ,  H04L45/74

摘要： User equipment (UE) cooperation could improve latency, reliability, throughput, coverage and capacity in wireless communication systems. UE cooperation could include a group of UEs helping each other with transmissions through packet forwarding. Methods are provided that include receiving, by a UE in a predefined UE group, a plurality of packets. The plurality of packets includes a first packet that is scrambled using a UE specific identifier, and a second packet that is scrambled using a UE group specific identifier. The methods further include forwarding, by the UE, the plurality of packets.