公开(公告)号：US09326157B1

公开(公告)日：2016-04-26

申请号：US14711278

申请日：2015-05-13

Applicant: Intel IP Corporation

Inventor： Abhijeet Bhorkar ,  Hwan-Joon Kwon ,  Christian Ibars Casas

IPC: H04W72/00 ,  H04W16/14 ,  H04W72/04 ,  H04L1/18 ,  H04W88/12

CPC classification number: H04W16/14 ,  H04L1/1812 ,  H04W72/042 ,  H04W72/0453 ,  H04W72/1215 ,  H04W74/0808 ,  H04W88/10 ,  H04W88/12

Abstract: Disclosed in some examples are systems, machine-readable media, methods, and cellular wireless devices which implement a Listen-Before-Talk (LBT) access scheme for a device operating according to a cellular wireless protocol in an unlicensed channel. A cellular wireless device may utilize the cellular wireless protocol in the unlicensed channel after the LBT access scheme has determined that a channel (a defined range of frequencies) in the unlicensed channel is idle for a particular period of time.

Abstract translation: 在一些示例中公开了系统，机器可读介质，方法和蜂窝无线设备，其针对在非许可信道中根据蜂窝无线协议操作的设备实现了在线对讲（LBT）接入方案。 在LBT接入方案已经确定非许可信道中的信道（定义的频率范围）在特定时间段内空闲之后，蜂窝无线设备可以在非许可信道中利用蜂窝无线协议。

公开(公告)号：US10893548B2

公开(公告)日：2021-01-12

申请号：US16080826

申请日：2017-01-25

Applicant: Intel IP Corporation

Inventor： Qiaoyang Ye ,  Jeongho Jeon ,  Seau S. Lim ,  Huaning Niu ,  Abhijeet Bhorkar

IPC: H04W74/08 ,  H04W74/06 ,  H04W16/14 ,  H04W72/04 ,  H04W72/12 ,  H04W74/02 ,  H04W88/06

Abstract: An apparatus is configured to be employed within one or more user equipment (UE). The apparatus includes control circuitry and a transceiver. The control circuitry is configured to generate a physical random access channel (PRACH), wherein the PRACH includes a preamble for PRACH transmission using a license assisted access (LAA) secondary cell. The transceiver is coupled to the control circuitry and is configured to retry transmission of the PRACH on a listen before talk (LBT) failure based of the secondary cell.

公开(公告)号：US10568049B2

公开(公告)日：2020-02-18

申请号：US15764301

申请日：2016-03-29

Applicant: Intel IP Corporation

Inventor： Qiaoyang Ye ,  Hwan-Joon Kwon ,  Hong He ,  Abhijeet Bhorkar ,  Jeon Jeongho

IPC: H04W52/14 ,  H04W52/36 ,  H04B17/318 ,  H04L5/00 ,  H04W52/32 ,  H04B7/06

Abstract: Technology for a user equipment (UE) operable to perform channel state information (CSI) measurements in a License Assisted Access (LAA) system is disclosed. The UE can process information received from a base station in the LAA system. The information can be received within a downlink (DL) transmission burst from the base station. The information can indicate one of: a cell-specific reference signal (CRS) or channel state information reference signal (CSI-RS) transmission power offset value for the DL transmission burst, one or more subframes in the DL transmission burst for which the UE is to perform CSI measurements, or a subframe boundary of the DL transmission burst. The UE can perform a CSI measurement for the DL transmission burst based on the information received from the base station. Subframes of the DL transmission burst can be associated with a substantially similar transmission power.

公开(公告)号：US10555339B2

公开(公告)日：2020-02-04

申请号：US15765764

申请日：2016-03-28

Applicant: Intel IP Corporation

Inventor： Abhijeet Bhorkar ,  Hwan-Joon Kwon ,  Jeongho Jeon ,  Qiaoyang Ye

IPC: H04W74/08 ,  H04L5/00 ,  H04W16/14 ,  H04W72/04

Abstract: Techniques for transmission of a physical downlink control channel (PDCCH) or enhanced PDCCH (EPDCCH) within a partial subframe of a license assisted access (LAA) burst are discussed. One example apparatus comprises a processor configured to generate a LAA burst; generate one or more downlink control channel messages that comprise at least one of PDCCH messages or EPDCCH messages; generate a physical layer encoding of the LAA burst comprising a first partial subframe, wherein the first partial subframe comprises a physical layer encoding of the one or more downlink control channel messages; and output the first partial subframe comprising the physical layer encoding of the one or more control channel messages to transmitter circuitry for subsequent transmission via an unlicensed carrier.

公开(公告)号：US10542460B2

公开(公告)日：2020-01-21

申请号：US15751127

申请日：2015-12-26

Applicant: INTEL IP CORPORATION

Inventor： Abhijeet Bhorkar ,  Laurent Cariou ,  Hwan Joon Kwon

IPC: H04W28/18 ,  H04W74/08 ,  H04W16/14

Abstract: When performing a contention protocol, such as Listen-Before-Talk (LBT), an Long Term Evolution (LTE)-Licensed Assisted Access (LAA) node dynamically adapts the ED threshold used by the LTE-LAA node depending on whether other transmission nodes are detected at the frequency components that are to be used by the LTE-LAA node. In one implementation, the ED threshold value may initially be set to a conservative value, and when other transmissions nodes are not detected, the ED threshold value may be set to a more aggressive value. In another implementation, the ED threshold value may initially be set to a more aggressive value, and only when another transmission node is detected, the ED threshold value may be set to a more conservative value. In yet another possible implementation, the ED threshold value and the transmit power may be proportionally modified, for a particular UE, based on a parameter associated with the UE.

公开(公告)号：US10462819B2

公开(公告)日：2019-10-29

申请号：US15752481

申请日：2015-12-15

Applicant: Intel IP Corporation

Inventor： Abhijeet Bhorkar ,  Hwan-Joon Kwon ,  Christian Ibars Casas

IPC: H04W74/08 ,  H04L5/00 ,  H04W16/14

Abstract: Systems, apparatus, user equipment (UE), evolved node B (eNB), computer readable media, and methods are described for multi-carrier listen before talk operations. In various embodiments, a transmitting device may assign one or more primary carriers to perform listen before talk (LBT) operations, with non-primary carriers performing a channel sensing operation at the end of the LBT operations of at least one primary channel. In various embodiments, the LBT operations at the primary carriers may use a shared random countdown number or an independent random countdown.

公开(公告)号：US20190098661A1

公开(公告)日：2019-03-28

申请号：US16080826

申请日：2017-01-25

Applicant: Intel IP Corporation

Inventor： Qiaoyang Ye ,  Jeongho Jeon ,  Seau S. Lim ,  Huaning Niu ,  Abhijeet Bhorkar

IPC: H04W74/08 ,  H04W88/06 ,  H04W16/14 ,  H04W74/02 ,  H04W72/12 ,  H04W72/04

Abstract: An apparatus is configured to be employed within one or more user equipment (UE). The apparatus includes control circuitry and a transceiver. The control circuitry is configured to generate a physical random access channel (PRACH), wherein the PRACH includes a preamble for PRACH transmission using a license assisted access (LAA) secondary cell. The transceiver is coupled to the control circuitry and is configured to retry transmission of the PRACH on a listen before talk (LBT) failure based of the secondary cell.

公开(公告)号：US20190053222A1

公开(公告)日：2019-02-14

申请号：US16078291

申请日：2016-09-30

Applicant: Intel IP Corporation

Inventor： Abhijeet Bhorkar ,  Huaning Niu ,  Qiaoyang Ye ,  Jeongho Jeon

IPC: H04W72/04 ,  H04W72/14 ,  H04W72/12 ,  H04W74/08 ,  H04W16/14

CPC classification number: H04W72/0413 ,  H04W16/14 ,  H04W72/1284 ,  H04W72/1289 ,  H04W72/14 ,  H04W74/0808 ,  H04W88/08

Abstract: A network device (e.g., an evolved Node B (eNB), user equipment (UE) or the like) can operate to enable scheduling UL transmissions on transmission opportunities outside of the UL grants or for multi-carrier UL scheduling. A communication component of the device can operate to process or generate communications on an unlicensed band or a licensed band in response to UL grants and indications provided via a DL transmission for scheduling. An eNB can provide indications to a UE for processing that indicate whether a transmission opportunity is on the same transmission opportunity as the UL grants or an external/outside transmission opportunity. The indications can further trigger an listen-before-talk (LBT) protocol, which can vary between a category 4 LBT or a single LBT interval that is shorter than the category 4 LBT, depending on the indication.

公开(公告)号：US20190007896A1

公开(公告)日：2019-01-03

申请号：US16060401

申请日：2016-12-07

Applicant: Intel IP Corporation

Inventor： Qiaoyang Ye ,  Hwan-Joon Kwon ,  Abhijeet Bhorkar ,  Jeongho Jeon ,  Fatemeh Hamidi-Sepehr

IPC: H04W48/16 ,  H04L1/00 ,  H04L5/00 ,  H04L27/00 ,  H04W16/14 ,  H03M13/09

Abstract: Described is an apparatus of an Evolved Node-B (eNB) operable to communicate with a User Equipment (UE) on a wireless network. The apparatus may comprise a circuitry operable to generate a Master Information Block (MIB) for transmission on one or more Physical Resource Blocks (PRBs). The apparatus may also comprise a circuitry operable to map the MIB onto at least one Orthogonal Frequency Division Multiplexing (OFDM) symbol of the PRBs outside of symbols 7, 8, 9, and 10. Transmission of the PRBs may be subject to an LBT procedure.

公开(公告)号：US20180255576A1

公开(公告)日：2018-09-06

申请号：US15752481

申请日：2015-12-15

Applicant: Intel IP Corporation

Inventor： Abhijeet Bhorkar ,  Hwan-Joon Kwon ,  Christian Ibars Casas

IPC: H04W74/08 ,  H04W16/14

CPC classification number: H04W74/0808 ,  H04L5/0007 ,  H04L5/001 ,  H04L27/0006 ,  H04W16/14

Abstract: Systems, apparatus, user equipment (UE), evolved node B (eNB), computer readable media, and methods are described for multi-carrier listen before talk operations. In various embodiments, a transmitting device may assign one or more primary carriers to perform listen before talk (LBT) operations, with non-primary carriers performing a channel sensing operation at the end of the LBT operations of at least one primary channel. In various embodiments, the LBT operations at the primary carriers may use a shared random countdown number or an independent random countdown.