公开(公告)号：US20190132169A1

公开(公告)日：2019-05-02

申请号：US16234129

申请日：2018-12-27

申请人： Liqing Zhang ,  Kelvin Kar Kin Au ,  Jianglei Ma ,  Wen Tong ,  Toufiqul Islam

发明人： Liqing Zhang ,  Kelvin Kar Kin Au ,  Jianglei Ma ,  Wen Tong ,  Toufiqul Islam

IPC分类号： H04L27/26 ,  H04L5/00

摘要： For a wireless communications system, scalable orthogonal frequency division multiplexing (OFDM) numerology is incorporated in a manner that can apply to radio link transmissions in future wireless network for frequency division duplex (FDD) and time division duplex (TDD) communications.

公开(公告)号：US20180343153A1

公开(公告)日：2018-11-29

申请号：US16036569

申请日：2018-07-16

申请人： Liqing Zhang ,  Kelvin Kar Kin Au ,  Jianglei Ma ,  Wen Tong ,  Toufiqul Islam

发明人： Liqing Zhang ,  Kelvin Kar Kin Au ,  Jianglei Ma ,  Wen Tong ,  Toufiqul Islam

IPC分类号： H04L27/26 ,  H04L5/00

摘要： For a wireless communications system, scalable orthogonal frequency division multiplexing (OFDM) numerology is incorporated in a manner that can apply to radio link transmissions in future wireless network for frequency division duplex (FDD) and time division duplex (TDD) communications.

公开(公告)号：US09736774B2

公开(公告)日：2017-08-15

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.

公开(公告)号：US11765616B2

公开(公告)日：2023-09-19

申请号：US17097347

申请日：2020-11-13

申请人： Liqing Zhang ,  Hua Xu ,  Jianglei Ma

发明人： Liqing Zhang ,  Hua Xu ,  Jianglei Ma

IPC分类号： H04W80/02 ,  H04W28/02 ,  H04W88/04 ,  H04W76/14

CPC分类号： H04W28/0263 ,  H04W76/14 ,  H04W80/02 ,  H04W88/04

摘要： Signaling to enable relay-based user equipment (UE) cooperation (UC) by a group of UEs, and a configuration including an adaptation protocol for processing of UC bearer traffic, are communicated in a wireless communication network. The UC bearer traffic includes a UC bearer and UC bearer attributes, and the UC bearer includes either a split bearer or a duplicated bearer indicated in the UC bearer attributes. In some embodiments, wireless network connectivity that is available for a relay link is determined, and the adaptation protocol is determined based on the determined connectivity. Signaling to enable configuration of the relay link in accordance with the connectivity and the adaptation protocol is communicated. A UE may receive signaling to configure the UE for such a relay link, and communicates traffic between a remote UE and the wireless communication network over the relay link.

公开(公告)号：US11546929B2

公开(公告)日：2023-01-03

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 ,  H04L1/18 ,  H04W28/04 ,  H04W72/14 ,  H04W74/00 ,  H04L5/00 ,  H04W72/04 ,  H04L1/00

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：US11490360B2

公开(公告)日：2022-11-01

申请号：US16848191

申请日：2020-04-14

申请人： Liqing Zhang ,  Jianglei Ma ,  Hua Xu ,  Seyedarvin Ayoughi

发明人： Liqing Zhang ,  Jianglei Ma ,  Hua Xu ,  Seyedarvin Ayoughi

IPC分类号： H04W72/00 ,  H04W72/04 ,  H04L1/08 ,  H04L1/18 ,  H04W92/18 ,  H04W88/04 ,  H04W92/10

摘要： Aspects of the present application provide methods and device for use in User Equipment (UE) cooperation. UE cooperation may include the cooperating UEs (CUEs) forwarding traffic to or from one or more target UEs (TUEs) with redundant signal transmissions or receptions. Methods involve a base station transmitting configuration information to at least one cooperative user equipment (CUE) and to a target user equipment (TUE). The configuration information includes an indication of resources for a sidelink (SL) transmission and a redundancy parameter for the SL transmission. The SL transmission is a transmission for the at least one CUE to forward a packet intended for the TUE. The base station also transmits the packet intended for the TUE, to a plurality of UEs comprising the at least one CUE and the TUE.

公开(公告)号：US10673593B2

公开(公告)日：2020-06-02

申请号：US15799157

申请日：2017-10-31

申请人： Yu Cao ,  Liqing Zhang ,  Jianglei Ma

发明人： Yu Cao ,  Liqing Zhang ,  Jianglei Ma

IPC分类号： H04L5/00 ,  H04L1/18 ,  H04L1/16 ,  H04W72/04

摘要： In a wireless communication system, a grant-free uplink transmission is an uplink transmission sent from a user equipment (UE) to a base station that does not need a dynamic and explicit scheduling grant from the base station. Systems and methods are disclosed for performing hybrid automatic repeat request (HARQ) for grant-free uplink transmissions. Signaling relating to the ACK/NACK for the HARQ, as well as signaling relating to configuring the UE for grant-free uplink transmission, is also disclosed.

公开(公告)号：US10547480B2

公开(公告)日：2020-01-28

申请号：US16036569

申请日：2018-07-16

申请人： Liqing Zhang ,  Kelvin Kar Kin Au ,  Jianglei Ma ,  Wen Tong ,  Toufiqul Islam

发明人： Liqing Zhang ,  Kelvin Kar Kin Au ,  Jianglei Ma ,  Wen Tong ,  Toufiqul Islam

IPC分类号： H04L27/26 ,  H04L5/00

摘要： For a wireless communications system, scalable orthogonal frequency division multiplexing (OFDM) numerology is incorporated in a manner that can apply to radio link transmissions in future wireless network for frequency division duplex (FDD) and time division duplex (TDD) communications.

公开(公告)号：US20190052429A1

公开(公告)日：2019-02-14

申请号：US16165285

申请日：2018-10-19

申请人： Kelvin Kar Kin Au ,  Liqing Zhang ,  Mohammadhadi Baligh ,  Jianglei Ma ,  Wen Tong

发明人： Kelvin Kar Kin Au ,  Liqing Zhang ,  Mohammadhadi Baligh ,  Jianglei Ma ,  Wen Tong

IPC分类号： H04L5/00 ,  H04W74/00

摘要： A method and system for operating a user equipment (UE) wherein a first set of radio access procedures are supported when the UE is in a first operating state, and a second set of radio access procedures are supported when the UE is in a second operating state.

公开(公告)号：US10149327B2

公开(公告)日：2018-12-04

申请号：US15656199

申请日：2017-07-21

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： H04W74/08 ,  H04W72/04 ,  H04L1/18

摘要： A system and method includes implementing, by a base station (BS), a reliable ultra-low latency transmission mechanism in a grant-free uplink transmission scheme having defined therein contention transmission unit (CTU) access regions and a plurality of CTUs. Implementing the reliable ultra-low latency transmission mechanism includes defining a reliable ultra-low latency CTU (RULL-CTU) access region from a portion of the CTU access regions of the grant-free transmission scheme, defining an RULL-CTU mapping scheme by mapping at least a portion of plurality of CTUs to the RULL-CTU access region to define a plurality of RULL-CTUs, defining a reliable ultra-low latency user equipment (RULL-UE) mapping scheme by defining rules for mapping a plurality of RULL-UEs to the plurality of RULL-CTUs in an initial pattern for initial transmissions in a first transmission time interval (TTI), and a regrouped pattern for redundant transmissions in a second TTI subsequent to the first TTI.