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    HARQ FEEDBACK IN SHARED RF SPECTRUM BAND
    22.
    发明申请
    HARQ FEEDBACK IN SHARED RF SPECTRUM BAND 审中-公开

    公开(公告)号：US20170346605A1

    公开(公告)日：2017-11-30

    申请号：US15604326

    申请日：2017-05-24

    Applicant: QUALCOMM Incorporated

    Inventor： Arumugam Chendamarai Kannan ,  Chirag Patel ,  Tao Luo

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

    CPC classification number: H04L1/1874 ,  H04L1/1614 ,  H04L1/1685 ,  H04L1/1835 ,  H04W16/14 ,  H04W72/0413

    Abstract: Methods, systems, and devices for wireless communication are described. Wireless communications systems operating in unlicensed or shared radio frequency spectrum band may use different modes to manage hybrid automatic repeat request (HARQ) feedback. HARQ feedback may be transmitted autonomously or, in some cases, HARQ feedback may be solicited from a user equipment (UE) for one or several HARQ processes. Solicited feedback may be referred to as polled feedback and autonomous feedback may be referred to as unpolled feedback. Polled and unpolled feedback may be transmitted using different physical channels, and may be grant-based or triggered without an express grant. Buffers for polled and unpolled feedback may be separately maintained and managed. In a multicarrier configuration, uplink control information (UCI) for one or more carriers may be transmitted on a subset of configured uplink carriers. A number of carriers used for UCI may depend on operating conditions of a UE.

    Inter-system call switching between co-existence wireless systems
    23.
    发明授权
    Inter-system call switching between co-existence wireless systems 有权
    共存无线系统之间的系统间呼叫切换

    公开(公告)号：US09185715B2

    公开(公告)日：2015-11-10

    申请号：US13786657

    申请日：2013-03-06

    Applicant: QUALCOMM Incorporated

    Inventor： Arnaud Meylan ,  Yan Zhou ,  Peerapol Tinnakornsrisuphap ,  Chirag Patel ,  Mehmet Yavuz

    IPC: H04W4/00 ,  H04W36/00 ,  H04W72/00 ,  H04M1/66 ,  H04W72/10 ,  H04L12/759 ,  H04W36/14 ,  H04W48/18 ,  H04W36/24 ,  H04W36/22 ,  H04W48/06

    CPC classification number: H04W72/10 ,  H04L45/028 ,  H04W36/00 ,  H04W36/0022 ,  H04W36/0066 ,  H04W36/14 ,  H04W36/22 ,  H04W36/24 ,  H04W48/06 ,  H04W48/18

    Abstract: Techniques for switching a user equipment (UE) between wireless systems by first establishing a connection with a target system before disconnecting from a serving system are disclosed. In one design, the UE may initially communicate with a first wireless system (e.g., a WLAN system) of a first radio technology. The UE may receive a page to establish a connection with a second wireless system (e.g., a cellular system) of a second radio technology. The first and second wireless systems may be part of a small cell. The page may be sent by the second wireless system to the UE in response to a decision by a network entity to switch the UE from the first wireless system to the second wireless system. The UE may establish a connection with the second wireless system in response to the page and may thereafter terminate communication with the first wireless system.

    Abstract translation: 公开了用于在无线系统之间切换用户设备（UE）的技术，首先在与服务系统断开连接之前建立与目标系统的连接。 在一种设计中，UE可以最初与第一无线电技术的第一无线系统（例如，WLAN系统）进行通信。 UE可以接收页面以建立与第二无线电技术的第二无线系统（例如，蜂窝系统）的连接。 第一和第二无线系统可以是小小区的一部分。 响应于网络实体决定将UE从第一无线系统切换到第二无线系统，该页面可以由第二无线系统发送给UE。 UE可以响应于该页面与第二无线系统建立连接，并且此后终止与第一无线系统的通信。

    Multefire autonomous uplink channel clearance signaling
    24.
    发明授权
    Multefire autonomous uplink channel clearance signaling 有权

    公开(公告)号：US11576206B2

    公开(公告)日：2023-02-07

    申请号：US16326290

    申请日：2017-09-22

    Applicant: Qualcomm Incorporated

    Inventor： Peng Cheng ,  Vinay Chande ,  Arumugam Chendamarai Kannan ,  Chirag Patel

    IPC: H04W74/08 ,  H04W72/12 ,  H04W52/02 ,  H04W8/00 ,  H04W24/10 ,  H04W52/24 ,  H04W72/14 ,  H04W74/00 ,  H04W76/27

    Abstract: Methods, systems, and devices for wireless communication are described. A base station may determine a measurement scheme or uplink mode and then transmit an indication of the scheme or uplink mode to an associated user equipment (UE). The base station may identify a set of hidden nodes for the UE and configure the UE for autonomous or grant-based uplink transmissions accordingly. A UE may initiate a channel clearance scheme by transmitting a first channel clearance signal (e.g., a request-to-send message), which may include a UE identifier before transmitting an uplink message in the unlicensed radio frequency spectrum band. In response, the base station may transmit a second channel clearance signal (e.g., a clear-to-send message). In some cases, the second channel clearance signal may include control information or may be transmitted at a power level that is based on a characteristic of the UE.

    CONTROL CHANNEL CONFIGURATION AND TIMING FOR AUTONOMOUS UPLINK
    25.
    发明申请
    CONTROL CHANNEL CONFIGURATION AND TIMING FOR AUTONOMOUS UPLINK 有权

    公开(公告)号：US20210289488A1

    公开(公告)日：2021-09-16

    申请号：US16341224

    申请日：2016-12-07

    Applicant: QUALCOMM Incorporated

    Inventor： Peng Cheng ,  Chirag Patel ,  Vinay Chande ,  Tamer Kadous

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

    Abstract: Methods, systems, and devices for wireless communication are described. Various autonomous uplink control channel configurations may be used for unscheduled uplink transmissions. For example, a user equipment (UE) may initiate an unscheduled uplink transmission and may identify an autonomous uplink control channel configuration for the uplink transmission. The UE may transmit control information and data during an initial transmission time interval of a transmission opportunity according to the control channel configuration, where the control channel configuration control may include a number of different waveforms and payload configurations. For example, an autonomous uplink control channel configuration may include control information frequency division multiplexed or time division multiplexed with data and transmitted in one or more frequency interlaces. In some cases, the control channel configuration may include a symbol period for a clear-to-send signal, and one or more symbol periods used a guard period before the data transmission.

    ENHANCED NEIGHBOR RELATIONS AND PHYSICAL CELL IDENTIFIER CONFUSION DETECTION
    28.
    发明申请
    ENHANCED NEIGHBOR RELATIONS AND PHYSICAL CELL IDENTIFIER CONFUSION DETECTION 审中-公开

    公开(公告)号：US20170359737A1

    公开(公告)日：2017-12-14

    申请号：US15492510

    申请日：2017-04-20

    Applicant: QUALCOMM Incorporated

    Inventor： Damanjit Singh ,  Chirag Patel ,  Manu Sharma ,  Rajat Prakash

    IPC: H04W24/02 ,  H04W36/00 ,  H04W16/14 ,  H04W88/08

    CPC classification number: H04W24/02 ,  H04W16/14 ,  H04W36/0061 ,  H04W88/08

    Abstract: Methods, systems, and devices for enhanced neighbor discovery through enhanced automatic neighbor relations (ANR) and for detecting cell identifier confusion and are described. Neighboring base stations may provide information to one another, including using ANR, that may avoid or help to resolve cell identity confusion. For example, a NHN-ID may be defined to avoid or resolve cell identify confusion. A wireless device, such as a base station or a user equipment (UE), may determine whether neighboring cells are using a common cell identifier and may adjust operations accordingly. For example, a device may detect physical cell identity (PCI) confusion by determining whether two neighboring cells have the same PCI and different Evolved Universal Terrestrial Access Network (E-UTRAN) Cell Global Identifiers (ECGIs) or different Neutral Host Network Identifier (NHN-IDs). A network entity may then inform the neighboring cells having the same PCI of the confusion.

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