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    Method and apparatus of obtaining feedback of HARQ acknowledgment information
    2.
    发明授权
    Method and apparatus of obtaining feedback of HARQ acknowledgment information 有权

    公开(公告)号：US10931412B2

    公开(公告)日：2021-02-23

    申请号：US16089664

    申请日：2017-03-31

    Applicant: Alcatel Lucent

    Inventor： Jianguo Liu ,  Tao Tao ,  Yan Meng ,  Zhe Luo ,  Dawei Wang ,  Junrong Gu ,  Gang Shen

    IPC: H04W72/04 ,  H04L1/18 ,  H04W16/14 ,  H04W74/08

    Abstract: Embodiments of the present disclosure provide a method and apparatus of obtaining feedback of HARQ acknowledgment information. The method comprises allocating to UE an uplink control channel resource for report of HARQ acknowledgment information related to downlink data transmission on an unlicensed carrier. The method also comprises obtaining feedback of the HARQ acknowledgment information from the UE within a predefined deferral window. The predefined deferral window specifies a minimum delay and a maximum delay for report of the HARQ acknowledgment information. The embodiments of the present disclosure may increase the reliability and reduce the latency of HARQ acknowledgment information feedback. In addition, the embodiments of the present disclosure may not only be for LAA scenarios, but also may be extended to standalone LAA access scenarios on unlicensed carriers.

    Communication device working on unlicensed frequency band and method performed by the same
    3.
    发明授权
    Communication device working on unlicensed frequency band and method performed by the same 有权

    公开(公告)号：US10477579B2

    公开(公告)日：2019-11-12

    申请号：US15762615

    申请日：2016-09-08

    Applicant: Alcatel Lucent

    Inventor： Feng Han ,  Jianguo Liu ,  Tao Tao ,  Yan Meng ,  Junrong Gu

    IPC: H04W74/08 ,  H04W24/08 ,  H04W16/14 ,  H04W74/00 ,  H04W72/08 ,  H04W72/12

    Abstract: Embodiments of the present disclosure relates to a communication device working on unlicensed frequency band and a method for executing the same. The method comprises: determining a mapping relationship between multiple quality of service (QoS) priority classes and multiple Listen-Before-Talk (LBT) priority classes, wherein the multiple QoS priority classes are in one-to-one correspondence with multiple QoS requirements; and transmitting radio traffic based on the mapping relationship. Embodiments of the present disclosure proposes the mapping relationship between LBT priority class and various QoS priority classes associated with different radio traffic types and presents signaling design and exchange related to the mapping relationship.

    Method and apparatus for occupying unlicensed band channel
    4.
    发明授权
    Method and apparatus for occupying unlicensed band channel 有权

    公开(公告)号：US10924295B2

    公开(公告)日：2021-02-16

    申请号：US15566413

    申请日：2016-04-01

    Applicant: Alcatel Lucent

    Inventor： Junrong Gu ,  Feng Han ,  Jianguo Liu ,  Yan Meng ,  Jun Wang ,  Zhuo Wu ,  Gang Shen ,  Tao Tao

    IPC: H04L12/28 ,  H04W52/36 ,  H04W28/04 ,  H04W52/28 ,  H04W52/24

    Abstract: The present invention relates to a method and an apparatus for occupying an unlicensed band channel, thereby avoiding misjudgment of an occupied unlicensed band state. A method for occupying an unlicensed band channel includes: a user equipment receiving a power increase rate of a reference signal transmission unit of an unlicensed band channel determined by a secondary cell (Scell) base station; the user equipment receiving, in the unlicensed band channel, a sub-frame of reference signal transmission unit level power distribution sent by the Scell base station; the user equipment decoding the power increase rate; and the user equipment using the power increase rate to process the sub-frame.

    METHOD AND APPARATUS OF OBTAINING FEEDBACK OF HARQ ACKNOWLEDGMENT INFORMATION
    5.
    发明申请
    METHOD AND APPARATUS OF OBTAINING FEEDBACK OF HARQ ACKNOWLEDGMENT INFORMATION 审中-公开

    公开(公告)号：US20190123861A1

    公开(公告)日：2019-04-25

    申请号：US16089664

    申请日：2017-03-31

    Applicant: Alcatel Lucent

    Inventor： Jianguo Liu ,  Tao Tao ,  Yan Meng ,  Zhe Luo ,  Dawei Wang ,  Junrong Gu ,  Gang Shen

    IPC: H04L1/18 ,  H04W72/04 ,  H04W16/14 ,  H04W74/08

    Abstract: Embodiments of the present disclosure provide a method and apparatus of obtaining feedback of HARQ acknowledgment information. The method comprises allocating to UE an uplink control channel resource for report of HARQ acknowledgment information related to downlink data transmission on an unlicensed carrier. The method also comprises obtaining feedback of the HARQ acknowledgment information from the UE within a predefined deferral window. The predefined deferral window specifies a minimum delay and a maximum delay for report of the HARQ acknowledgment information. The embodiments of the present disclosure may increase the reliability and reduce the latency of HARQ acknowledgment information feedback. In addition, the embodiments of the present disclosure may not only be for LAA scenarios, but also may be extended to standalone LAA access scenarios on unlicensed carriers.

    METHOD AND TRANSMITTER OF IMPLEMENTING MULTIPLE-CARRIER LISTEN-BEFORE TALK
    6.
    发明申请
    METHOD AND TRANSMITTER OF IMPLEMENTING MULTIPLE-CARRIER LISTEN-BEFORE TALK 审中-公开

    公开(公告)号：US20180242363A1

    公开(公告)日：2018-08-23

    申请号：US15751727

    申请日：2016-07-26

    Applicant: ALCATEL LUCENT

    Inventor： Jianguo Liu ,  Yan Meng ,  Tao Tao ,  Gang Shen ,  Junrong Gu ,  Feng Han ,  Sigen Ye

    IPC: H04W74/08 ,  H04W72/02

    CPC classification number: H04W74/0816 ,  H04L5/001 ,  H04W16/14 ,  H04W72/02 ,  H04W72/0453

    Abstract: Embodiments of the present disclosure relate to a method and a transmitter of implementing multiple-carrier Listen-Before-Talk in a wireless communication system. The method comprises: selecting a carrier group from a plurality of carriers as a synchronization carrier; determining a transmission synchronization boundary based on an extended CCA performed on the synchronization carrier; performing an initial CCA for the plurality of carriers; and determining that transmission is to be performed on at least one of the plurality of carriers based on at least one of the result of the extended CCA and the result of the initial CCA. The embodiments according to the present disclosure require only performing eCCA on the carrier group selected as the synchronization carrier. Compared with Wi-Fi, the LTE system can compete with Wi-Fi more fairly, and compared with the traditional solution it is more possible to obtain some carriers in the unlicensed spectrum. Additionally, the channel resource usage efficiency on the unlicensed spectrum is enhanced significantly.

    METHOD OF SUPPORTING MULTIPLE QOS IN A LISTEN-BEFORE-TALK OPERATION
    9.
    发明申请
    METHOD OF SUPPORTING MULTIPLE QOS IN A LISTEN-BEFORE-TALK OPERATION 审中-公开

    公开(公告)号：US20180279370A1

    公开(公告)日：2018-09-27

    申请号：US15762389

    申请日：2016-09-05

    Applicant: Alcatel Lucent

    Inventor： Tao Tao ,  Jianguo Liu ,  Feng Han ,  Yan Meng ,  Junrong Gu ,  Gang Shen

    IPC: H04W74/08 ,  H04W16/14 ,  H04W28/02

    CPC classification number: H04W74/0816 ,  H04W16/14 ,  H04W28/0268

    Abstract: The present disclosure provides a method of supporting multiple Qo S in a Listen-Before-Talk operation. According to an embodiment of the present disclosure, the method comprises: configuring m Listen-Before-Talk priority classes, which are defined by m different parameter sets respectively; determining Listen-Before-Talk priority classes for respective traffic in a transmission burst; and selecting one of the determined Listen-Before-Talk priority classes as a Listen-Before-Talk priority class for access. Through the present disclosure, the coexistence between LTE LAA and WiFi can be realized in respect of the Qo S priority, and the scheduling flexibility of LAA is still retained.

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