公开(公告)号：US20180241446A1

公开(公告)日：2018-08-23

申请号：US15932312

申请日：2018-02-16

Applicant: QUALCOMM Incorporated

Inventor： Seyed Ali Akbar Fakoorian ,  Xiaoxia Zhang ,  Taesang Yoo ,  Siddhartha Mallik ,  Juan Montojo

IPC: H04B7/0456 ,  H04B7/08

CPC classification number: H04B7/0456 ,  H04B7/00 ,  H04B7/022 ,  H04B7/0854 ,  H04L5/0007 ,  H04L5/0048

Abstract: Reference signal and transmitter (Tx)/receiver (Rx) precoding for user equipment (UE) multiplexing in new radio (NR) shared spectrum networks is discussed. In certain reference signals, a base station may schedule multiple UEs for transmission of uplink reference signals within an identified subframe. The base station may transmit a reference signal configuration message, wherein the reference signal configuration message includes a transmission sequence identifier identifying a multiplexing for antenna ports assigned for transmission of the uplink reference signals. The multiplexing may be one or both of frequency divisional multiplexing (FDM) and time division multiplexing (TDM) over the identified subframe. Additional reference signals, transmit precoders may be identified by the base station based on channel inversion calculations of the channel matrix determined based on uplink reference signals.

公开(公告)号：US10020911B2

公开(公告)日：2018-07-10

申请号：US14984127

申请日：2015-12-30

Applicant: QUALCOMM Incorporated

Inventor： Siddhartha Mallik ,  Tao Luo ,  Aleksandar Damnjanovic

IPC: H04W16/02 ,  H04W72/04 ,  H04W72/12 ,  H04W84/04 ,  H04L1/00 ,  H04L5/00 ,  H04W72/08

CPC classification number: H04L1/0003 ,  H04L5/0073 ,  H04W72/042 ,  H04W72/0426 ,  H04W72/0446 ,  H04W72/048 ,  H04W72/082 ,  H04W72/12 ,  H04W72/1278 ,  H04W84/045

Abstract: Systems, method and devices utilized in wireless communication may include creating, scheduling and/or using a transmission having at least one quasi-ABS which includes at least one macro set corresponding to a designated sector of a plurality of sectors in a macro node. Such subframes may be formed and partitioned to provide for a partition which may be used by a range expansion resource, such as a pico node or user entity.

公开(公告)号：US20180159610A1

公开(公告)日：2018-06-07

申请号：US15870796

申请日：2018-01-12

Applicant: QUALCOMM Incorporated

Inventor： Siddhartha Mallik ,  Tao Luo

IPC: H04B7/06 ,  H04W72/04 ,  H04W24/10 ,  H04L1/00

CPC classification number: H04B7/0626 ,  H04L1/0026 ,  H04W24/10 ,  H04W72/042

Abstract: Channel state information (CSI) request procedures are disclosed for use in long term evolution (LTE)/LTE-Advanced (LTE-A) networks with unlicensed spectrum. Instead of relying on periodic reference signals which may not be transmitted because of failed clear channel assessment (CCA) operations, an aperiodic reference signal is defined that provides an on-demand reference signal and CSI request for user equipment (UE). The serving base station transmits an identifier, which signals that the aperiodic reference signal will be transmitted, either in the same subframe or a future subframe, and then transmits the aperiodic reference signal in the designated subframe. UEs served by the base station will receive the identifier, identify a CSI request, either implicitly through the identifier signal received from the base station or explicitly through a UE-specific CSI request, and then generate a CSI report based on the aperiodic reference signal for transmission back to the serving base station.

公开(公告)号：US20180103472A1

公开(公告)日：2018-04-12

申请号：US15486197

申请日：2017-04-12

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Juan Montojo ,  Taesang Yoo ,  Siddhartha Mallik ,  Aleksandar Damnjanovic ,  Michael Mingxi Fan

IPC: H04W72/04 ,  H04W72/10 ,  H04W74/08 ,  H04W28/26 ,  H04L5/00

Abstract: Techniques are described for wireless communication at a wireless device. One method includes identifying a priority of the wireless device for a transmission interval of a radio frequency spectrum band shared by a plurality of network operating entities; identifying an absence of a predetermined transmission type in each of a number of clear channel assessment (CCA) slots of the transmission interval, in which each of the number of CCA slots is associated with a higher priority than the identified priority of the wireless device; and communicating over the radio frequency spectrum band based at least in part on the identified absence of the predetermined transmission type in each of the number of CCA slots associated with the higher priority than the priority of the wireless device.

公开(公告)号：US20180035462A1

公开(公告)日：2018-02-01

申请号：US15591475

申请日：2017-05-10

Applicant: QUALCOMM Incorporated

Inventor： Siddhartha Mallik ,  Taesang Yoo ,  Anastasios Stamoulis ,  Jing Sun ,  Aleksandar Damnjanovic ,  Juan Montojo

IPC: H04W74/08 ,  H04W74/00 ,  H04W48/08 ,  H04W48/16

CPC classification number: H04W74/0816 ,  H04W48/08 ,  H04W48/16 ,  H04W72/042 ,  H04W72/0426 ,  H04W72/082 ,  H04W74/004 ,  H04W74/006 ,  H04W84/12

Abstract: Methods, systems, and devices for wireless communication are described that provide for detection and management of hidden node interference. A user equipment (UE) may provide measurement reports to a serving transmitting device to help identify the hidden node interferer in response to detecting hidden node interference. The serving transmitting device may collaborate with one or more neighboring transmitting devices, such as other transmitting devices of an operator of a wireless communications system, to identify one or more of the neighboring transmitting devices that are within an energy detect or preamble detect radius of the hidden node. The serving transmitting device may coordinate with the neighboring transmitting device(s) to determine when the hidden node may transmit, to transmit coordinated preamble transmissions to prevent the hidden node from transmitting during a transmission, or to identify a modulation and coding scheme for the transmission.

公开(公告)号：US20170223740A1

公开(公告)日：2017-08-03

申请号：US15410640

申请日：2017-01-19

Applicant: QUALCOMM Incorporated

Inventor： Siddhartha Mallik ,  Taesang Yoo ,  Jing Sun ,  Xiaoxia Zhang ,  Aleksandar Damnjanovic

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

CPC classification number: H04W74/0816 ,  H04W72/0446 ,  H04W72/12 ,  H04W74/02 ,  H04W74/0808

Abstract: Uplink short transmissions (ULSTs) may be configured in a wireless communications system to be transmitted in configured uplink resources within a listen-before-talk (LBT) frame or within a ULST window during which a user equipment (UE) may transmit a ULST and during which the base station may monitor for ULSTs. A UE having an amount of data to be transmitted that is less than a threshold value may transmit the data in the ULST, and avoid the need to have the base station allocate separate uplink resources outside of the configured uplink resources or the ULST window.

公开(公告)号：US20170099126A1

公开(公告)日：2017-04-06

申请号：US15250586

申请日：2016-08-29

Applicant: QUALCOMM Incorporated

Inventor： Taesang Yoo ,  Jing Sun ,  Siddhartha Mallik ,  Tao Luo ,  Peter Gaal ,  Xiaoxia Zhang ,  Jun Wang

IPC: H04L5/00 ,  H04J11/00

CPC classification number: H04L5/0048 ,  H04J11/0069 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0037 ,  H04L5/005 ,  H04L5/0064 ,  H04L7/00

Abstract: Methods, systems, and devices are described for a system that supports wireless communication with a first set of devices using a first OFDM symbol duration associated with a first tone spacing (i.e., a first physical layer (PHY) configuration) and second set of devices using a PHY configuration associated with a second tone spacing. A base station may transmit a set of discovery reference signals (DRS) in a narrowband region of a primary channel of a carrier. The DRS may have the first PHY configuration and a secondary channel of the carrier may support communications using the second PHY configuration. The base station may transmit a first system information (SI) message for one set of devices using the first PHY configuration, and it may transmit a second SI message for another set of devices using the second PHY configuration.

公开(公告)号：US20170041766A1

公开(公告)日：2017-02-09

申请号：US15190040

申请日：2016-06-22

Applicant: QUALCOMM Incorporated

Inventor： Madhavan Srinivasan Vajapeyam ,  Siddhartha Mallik ,  Jun Wang ,  Aleksandar Damnjanovic ,  Taesang Yoo ,  Jing Sun ,  Yongbin Wei

IPC: H04W4/06 ,  H04W76/04 ,  H04L5/00

CPC classification number: H04W4/06 ,  H04L5/0007 ,  H04L5/0055 ,  H04W28/065 ,  H04W76/27 ,  H04W80/02

Abstract: Methods, systems, and devices for wireless communication are described. A transmitting device, which may be configured without a radio link control (RLC) layer, may receive a packet data convergence protocol (PDCP) protocol data unit (PDU) at a media access control (MAC) layer. The device may then generate a set of transport blocks at the MAC layer using the PDCP PDU and transmit them over a wireless connection. A receiving device, which may also be configured without an RLC layer, may receive the transport blocks at the MAC layer, generate a MAC service data unit (SDU), and convey the MAC SDU to a PDCP. In some cases, the receiving device may then send an acknowledgement (ACK) or negative acknowledgement (NACK) for each transport block that includes a portion of the PDCP PDU, and the transmitting device may indicate to the PDCP layer whether the PDCP PDU was successfully received.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 可以被配置为没有无线电链路控制（RLC）层的发射设备可以在媒体接入控制（MAC）层处接收分组数据会聚协议（PDCP）协议数据单元（PDU）。 然后，设备可以使用PDCP PDU在MAC层处生成一组传输块，并通过无线连接发送它们。 还可以配置为没有RLC层的接收设备可以在MAC层接收传输块，生成MAC服务数据单元（SDU），并将MAC SDU传送给PDCP。 在一些情况下，接收设备然后可以为包括PDCP PDU的一部分的每个传输块发送确认（ACK）或否定确认（NACK），并且发送设备可以向PDCP层指示PDCP PDU是否成功 收到了

公开(公告)号：US20170012748A1

公开(公告)日：2017-01-12

申请号：US15172682

申请日：2016-06-03

Applicant: QUALCOMM Incorporated

Inventor： Onkar Jayant Dabeer ,  Siddhartha Mallik ,  Taesang Yoo ,  Xiaoxia Zhang ,  Jing Sun

IPC: H04L5/00 ,  H04W56/00 ,  H04W72/12 ,  H04W74/08

CPC classification number: H04L5/0007 ,  H04W56/001 ,  H04W72/1215 ,  H04W74/08 ,  H04W74/0816

Abstract: Techniques are described for wireless communication. One method includes identifying a plurality of counters used to contend for access to a plurality of channels of an unlicensed radio frequency spectrum band. Each of the plurality of counters is associated with a respective channel of the plurality of channels of the unlicensed radio frequency spectrum band. The method also includes measuring at least one channel of the plurality of channels of the unlicensed radio frequency spectrum band. The measuring is associated with a contention for access to the at least one channel of the unlicensed radio frequency spectrum band. The method also includes synchronizing or desynchronizing at least a subset of the plurality of counters based at least in part on the measuring.

Abstract translation: 技术描述为无线通信。 一种方法包括识别用于竞争接入未许可射频频带的多个信道的多个计数器。 多个计数器中的每一个与未许可射频频带的多个信道的相应信道相关联。 该方法还包括测量未许可射频频带的多个信道中的至少一个信道。 该测量与用于访问未经许可的射频频带的至少一个信道的争用相关联。 该方法还包括至少部分地基于测量同步或同步至少该多个计数器的子集。

公开(公告)号：US20160345249A1

公开(公告)日：2016-11-24

申请号：US15143821

申请日：2016-05-02

Applicant: QUALCOMM Incorporated

Inventor： Taesang Yoo ,  Hao Xu ,  Durga Prasad Malladi ,  Yongbin Wei ,  Siddhartha Mallik ,  Jing Sun ,  Madhavan Srinivasan Vajapeyam ,  Jun Wang ,  Tao Luo ,  Xiaoxia Zhang ,  Wanshi Chen ,  Aleksandar Damnjanovic

IPC: H04W48/16 ,  H04W16/14 ,  H04L5/00 ,  H04W74/08 ,  H04W4/06 ,  H04W76/02

CPC classification number: H04W48/16 ,  H04L5/001 ,  H04W4/06 ,  H04W16/14 ,  H04W74/0808 ,  H04W76/10

Abstract: Techniques are described for wireless communication. One method for wireless communication at a base station includes contending for access to a shared channel of a shared radio frequency spectrum band, and multiplexing first component carrier (CC) communication windows and second CC communication windows in the shared channel. A duration of orthogonal frequency domain multiplexed (OFDM) symbols of the first CC communication windows may be different from a duration of OFDM symbols of the second CC communication windows, and the multiplexing may occur on the shared channel upon winning contention for access to the shared channel. One method for wireless communication at a user equipment (UE) includes monitoring a shared channel of a shared radio frequency spectrum band for a first CC Listen Before Talk (LBT) frame, and receiving, in a second CC preamble, an indication of the first CC LBT frame.

Abstract translation: 技术描述为无线通信。 一种用于在基站进行无线通信的方法包括竞争对共享射频频带的共享信道的访问，以及在共享信道中复用第一分量载波（CC）通信窗口和第二CC通信窗口。 第一CC通信窗口的正交频域多路复用（OFDM）符号的持续时间可以不同于第二CC通信窗口的OFDM符号的持续时间，并且在获得争用访问共享信道时在共享信道上可能发生复用 渠道。 在用户设备（UE）的无线通信的一种方法包括：监视用于第一CC在线聆听（LBT）帧的共享射频频带的共享信道，并且在第二CC前导码中接收第一CC CC LBT框架。