公开(公告)号：WO2019014202A1

公开(公告)日：2019-01-17

申请号：PCT/US2018/041415

申请日：2018-07-10

Applicant: QUALCOMM INCORPORATED

Inventor： LEI, Jing ,  SUN, Jing ,  KADOUS, Tamer

IPC: H04L27/36 ,  H04L27/34 ,  H04B10/532 ,  H04J14/06 ,  H04B7/10 ,  H04B7/0408 ,  H04L27/26

Abstract: Certain aspects of the present disclosure generally relate to wireless communication. More particularly, aspects of the present disclosure provide multiplexing schemes which may be suited for the single carrier waveform. For example, some techniques and apparatuses described herein permit multiplexing of multiple, different data streams without destroying the single-carrier properties of the waveform. Additionally, or alternatively, some techniques and apparatuses described herein may provide unequal error protection, unequal bandwidth allocation, and/or the like as part of the multiplexing schemes. Examples of multiplexing schemes described herein include in-phase/quadrature (I/Q) multiplexing, superposition quadrature amplitude modulation (QAM) based at least in part on layered bit mapping, polarization division multiplexing of QAM with superposition coding, and frequency division multiplexing using UE-specific beams.

公开(公告)号：WO2018186959A1

公开(公告)日：2018-10-11

申请号：PCT/US2018/020715

申请日：2018-03-02

Applicant: QUALCOMM INCORPORATED

Inventor： YERRAMALLI, Srinivas ,  LIU, Chih-Hao ,  KADOUS, Tamer

IPC: H04W72/12 ,  H04W4/70

Abstract: In order to conserve power resources for low complexity UEs, a base station may apparatus dynamically adjust a bandwidth configuration of a UE or the base station and communicates with the UE according to the dynamically adjusted bandwidth configuration. The communication may be narrowband communication. A UE may apparatus dynamically adjust a bandwidth configuration of the UE and communicates with a base station based on the dynamically adjusted bandwidth configuration. The dynamically adjusted bandwidth configuration may correspond to a function performed by the UE.

公开(公告)号：WO2018182927A1

公开(公告)日：2018-10-04

申请号：PCT/US2018/020806

申请日：2018-03-03

Applicant: QUALCOMM INCORPORATED

Inventor： SUN, Jing ,  LUO, Tao ,  MALIK, Rahul ,  AKKARAKARAN, Sony ,  KADOUS, Tamer ,  REDDY, Akula

IPC: H04L5/00 ,  H04L1/00 ,  H04W72/04

Abstract: Certain aspects of the present disclosure relate to communication systems, and more particularly, to control resource sets (coresets) for transmitting physical downlink control channels using either a single-carrier waveform or a multicarrier waveform in communications systems operating according to new radio (NR) technologies. In an exemplary method, a base station may determine whether a control resource set (coreset), of time and frequency resources within a control region of system bandwidth and configured for a user equipment (UE), conveys a physical downlink control channel (PDCCH) via a single-carrier waveform or a multicarrier waveform, and transmit the PDCCH to the UE using the determined waveform.

公开(公告)号：WO2018175041A1

公开(公告)日：2018-09-27

申请号：PCT/US2018/019518

申请日：2018-02-23

Applicant: QUALCOMM INCORPORATED

Inventor： MALIK, Rahul ,  KADOUS, Tamer

IPC: H04W48/08

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive network search information related to the accessible bands. In some examples, the UE may receive network search information from a server that has access to the network search information. The UE may receive the network search information directly from the server or through another wireless device. In other examples, a base station may broadcast network search information on an anchor carrier. The UE may tune to a carrier of a first radio access network to receive the network search information and use the network search information to assist connecting to a second radio access network. The network search information may include, for example, a network name or network ID, a technology type, band or channel information, security information or credentials.

公开(公告)号：WO2018156323A1

公开(公告)日：2018-08-30

申请号：PCT/US2018/016160

申请日：2018-01-31

Applicant: QUALCOMM INCORPORATED

Inventor： ZHANG, Xiaoxia ,  KADOUS, Tamer ,  YOO, Taesang

IPC: H04W74/08

Abstract: Wireless communications systems and methods related to sharing a spectrum using node-specific medium reservation signals are provided. A first wireless communication device a first configuration designated to the first wireless communication device. The first configuration indicates at least one waveform for representing reservation information. The first wireless communication device transmits a reservation signal to reserve a transmission opportunity (TXOP) in a shared spectrum. The reservation signal includes a first waveform representing corresponding first reservation information based on the first configuration. The first waveform is associated with a root sequence and a cyclic-shift value. The first reservation information indicates a transmit power level of the reservation signal. The first reservation information indicates an interference tolerance level of the first wireless communication device. The first reservation information indicates a reserved duration within the TXOP.

公开(公告)号：WO2018085154A1

公开(公告)日：2018-05-11

申请号：PCT/US2017/058853

申请日：2017-10-27

Applicant: QUALCOMM INCORPORATED

Inventor： YERRAMALLI, Srinivas ,  KADOUS, Tamer ,  LIU, Chih-Hao ,  PATEL, Chirag ,  RICO ALVARINO, Alberto

IPC: H04W74/08

Abstract: A method and apparatus for wireless communication in the unlicensed spectrum between an eNB and UEs having different bandwidths, e.g., between a narrowband UE and a wideband eNB. A base station apparatus performs an LBT procedure at a beginning of frames and transmits a plurality of repetitions of a transmission. When the plurality of repetitions span multiple frames and the LBT procedure is not successful for a first frame, the base station drops or postpones at least one repetition in the first frame until a second frame when the LBT procedure is successful. A UE receives the plurality of repetitions and may combine a plurality of repetitions across multiple frames. The UE may determine whether the base station drops the at least one repetition in the first frame or postpones the at least one repetition in the first frame until a second frame.

Abstract translation: 用于例如在窄带UE和宽带eNB之间的具有不同带宽的eNB和UE之间的未经许可的频谱中的无线通信的方法和设备。 基站设备在帧的开始处执行LBT过程并且发送传输的多个重复。 当多个重复跨越多个帧并且LBT过程对于第一帧不成功时，基站在第一帧中丢弃或推迟至少一次重复，直到LBT过程成功时的第二帧为止。 UE接收多个重复并且可以跨多个帧组合多个重复。 UE可以确定基站是丢弃第一帧中的至少一个重复还是延迟第一帧中的至少一个重复，直到第二帧为止。

公开(公告)号：WO2018044392A1

公开(公告)日：2018-03-08

申请号：PCT/US2017/041353

申请日：2017-07-10

Applicant: QUALCOMM INCORPORATED

Inventor： LIU, Chih-Hao ,  YERRAMALLI, Srinivas ,  PATEL, Chirag ,  KADOUS, Tamer ,  XU, Hao

IPC: H04W74/08 ,  H04W16/14

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) and base station may communicate using narrow band internet of things (NB-IoT) techniques or enhanced machine type communication (eMTC) in unlicensed spectrum. The UE may be an eMTC device or another device capable of communication without user direction. The UE may identify a geographic region and select a communication mode that is consistent with regulatory restrictions in that region. For example, in some cases, the communication mode may be based on using time division duplexing (TDD), using frequency hopping, or performing a listen-before-talk (LBT) procedure at the base station. A frame structure for TDD may include LBT subframes, uplink portions, downlink portions, and special subframes for switching. The base station may perform LBT procedures in the LBT subframes. If frequency hopping is enabled, a configurable number of TDD frames may be grouped into a hopping frame block.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 用户设备（UE）和基站可以在未经许可的频谱中使用窄带物联网（NB-IoT）技术或增强机器类型通信（eMTC）进行通信。 UE可以是eMTC设备或能够在没有用户指示的情况下进行通信的另一设备。 UE可以识别地理区域并且选择与该地区的监管限制一致的通信模式。 例如，在一些情况下，通信模式可以基于使用时分双工（TDD），使用跳频或者在基站处执行先听后说（LBT）过程。 用于TDD的帧结构可以包括用于切换的LBT子帧，上行链路部分，下行链路部分和特殊子帧。 基站可以在LBT子帧中执行LBT过程。 如果启用跳频，则可将可配置数量的TDD帧分组为跳频帧块。

公开(公告)号：WO2018038862A1

公开(公告)日：2018-03-01

申请号：PCT/US2017/043977

申请日：2017-07-26

Applicant: QUALCOMM INCORPORATED

Inventor： LUO, Tao ,  MONTOJO, Juan ,  KADOUS, Tamer ,  LI, Junyi ,  ZHANG, Xiaoxia ,  SUN, Jing ,  YOO, Taesang ,  MALLIK, Siddhartha

IPC: H04B17/24

Abstract: Various aspects of the disclosure relate to feedback for independent links. For example, channel state feedback may be based on the channel state of multiple links. In some aspects, the independent links may involve a first device (e.g., a user equipment) communicating via different independent links with different devices (e.g., transmit receive points (TRPs) or sets of TRPs). In some scenarios, channel state information (CSI) feedback may take into account the CSI-reference signals (CSI-RSs) from multiple links. For example, CSI feedback may be based on CSI-RSs from multiple links if the antenna sub-arrays for the links are close to one another. As another example, a decision as to whether CSI feedback is to be based on CSI-RSs from multiple links may depend on channel conditions.

Abstract translation: 本公开的各个方面涉及用于独立链接的反馈。 例如，信道状态反馈可以基于多个链路的信道状态。 在一些方面，独立链路可以涉及经由不同独立链路与不同设备（例如，发射接收点（TRP）或TRP集合）通信的第一设备（例如，用户设备）。 在一些场景中，信道状态信息（CSI）反馈可以考虑来自多个链路的CSI参考信号（CSI-RS）。 例如，如果用于链路的天线子阵列彼此靠近，则CSI反馈可以基于来自多个链路的CSI-RS。 作为另一个例子，关于CSI反馈是否基于来自多个链路的CSI-RS的决定可能取决于信道条件。

公开(公告)号：WO2018038859A1

公开(公告)日：2018-03-01

申请号：PCT/US2017/043956

申请日：2017-07-26

Applicant: QUALCOMM INCORPORATED

Inventor： LUO, Tao ,  MONTOJO, Juan ,  KADOUS, Tamer ,  LI, Junyi ,  ZHANG, Xiaoxia ,  SUN, Jing ,  YOO, Taesang ,  MALLIK, Siddhartha

IPC: H04W52/54

Abstract: Various aspects of the disclosure relate to communicating control information for independent links. For example, control information for one link may be sent via at least one other link. In some aspects, the independent links may involve a first device (e.g., a user equipment) communicating via different independent links with different devices (e.g., transmit receive points (TRPs) or sets of TRPs). In some scenarios, one link may carry control information for multiple links. For example, one link may indicate the existence of or traffic on at least one other link. As another example, one link may transmit feedback for multiple links. In some scenarios, each link may be provisioned (e.g., as a primary link or a secondary link) to carry specific types of control information for one or more links.

Abstract translation: 本公开的各个方面涉及传送用于独立链路的控制信息。 例如，一个链路的控制信息可以通过至少一个其他链路发送。 在一些方面，独立链路可以涉及经由不同独立链路与不同设备（例如，发射接收点（TRP）或TRP集合）通信的第一设备（例如，用户设备）。 在一些情况下，一条链路可以携带多条链路的控制信息。 例如，一个链接可以指示至少一个其他链接上的存在或流量。 作为另一个例子，一条链路可以传输多条链路的反馈。 在一些场景中，可以提供每个链接（例如，作为主链接或次链接）以携带用于一个或多个链接的特定类型的控制信息。

公开(公告)号：WO2018038858A1

公开(公告)日：2018-03-01

申请号：PCT/US2017/043946

申请日：2017-07-26

Applicant: QUALCOMM INCORPORATED

Inventor： LUO, Tao ,  MONTOJO, Juan ,  KADOUS, Tamer ,  LI, Junyi ,  ZHANG, Xiaoxia ,  SUN, Jing ,  YOO, Taesang ,  MALLIK, Siddhartha

IPC: H04B17/318

Abstract: Various aspects of the disclosure relate to channel sensing for independent links. In some aspects, the independent links may involve a first device (e.g., a user equipment) communicating via different independent links with different devices (e.g., transmit receive points (TRPs) or sets of TRPs). For example, the first device may communicate with a second device (e.g., a first TRP) via a first link and communicate with a third device (e.g., a second TRP) via a second link. In some scenarios, first channel sensing information may be obtained for the first link and second channel sensing information may be obtained for the second link. In some aspects, a decision of whether to transmit via one or more of the links may be based on the channel sensing on one or more of the links. In some cases, the links may be grouped together as a channel sensing group.

Abstract translation: 本公开的各个方面涉及用于独立链路的信道感测。 在一些方面，独立链路可以涉及经由不同独立链路与不同设备（例如，发射接收点（TRP）或TRP集合）通信的第一设备（例如，用户设备）。 例如，第一设备可以经由第一链路与第二设备（例如，第一TRP）通信并且经由第二链路与第三设备（例如，第二TRP）通信。 在一些场景中，可以为第一链路获得第一信道感测信息，并且可以为第二链路获得第二信道感测信息。 在一些方面中，是否通过一个或多个链路传输的决定可以基于一个或多个链路上的信道感测。 在某些情况下，这些链接可能会被归为一个通道感应组。