公开(公告)号：US20180227806A1

公开(公告)日：2018-08-09

申请号：US15948764

申请日：2018-04-09

Applicant: QUALCOMM Incorporated

Inventor： Srinivasa Yerramalli ,  Tao Luo ,  Siddhartha Mallik ,  Xiaoxia Zhang ,  Aleksandar Damnjanovic ,  Kiran Somasundaram

IPC: H04W28/26 ,  H04W74/08 ,  H04W16/14 ,  H04W72/04 ,  H04W72/12

CPC classification number: H04W28/26 ,  H04W16/14 ,  H04W72/0446 ,  H04W72/1215 ,  H04W74/08

Abstract: Techniques are described for wireless communication. A first method includes contending for access to a first channel of a radio frequency spectrum, and transmitting, upon winning contention for access to the first channel, a first channel reservation indication. The contending may be performed by a first node operating according to a first radio access technology. The first channel reservation indication may be understood by a second node operating according to a second radio access technology.

公开(公告)号：US20180098225A1

公开(公告)日：2018-04-05

申请号：US15642375

申请日：2017-07-06

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Ahmed Sadek ,  Siddhartha Mallik ,  Juan Montojo ,  Michael Mingxi Fan

IPC: H04W16/14 ,  H04W72/08 ,  H04W48/16 ,  H04W28/26

CPC classification number: H04W16/14 ,  H04W28/26 ,  H04W48/16 ,  H04W72/085 ,  H04W74/08 ,  H04W88/06

Abstract: Aspects of the disclosure relate to wireless communication systems configured to share a shared spectrum with one or more other systems (e.g., other operator networks utilizing the same radio access technology, and/or other networks utilizing different radio access technologies). Coexistence between the different systems on the shared spectrum may be provided by utilizing a technology-neutral signature waveform such as a signature sequence or discovery signal. The signature sequence may be used for resource reservation, scheduling, and coordination among disparate systems operating on a shared spectrum. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US20180054848A1

公开(公告)日：2018-02-22

申请号：US15240040

申请日：2016-08-18

Applicant: QUALCOMM Incorporated

Inventor： Taesang Yoo ,  Zhifei Fan ,  Jing Sun ,  Juan Montojo ,  Siddhartha Mallik ,  Aleksandar Damnjanovic ,  Xiaoxia Zhang

IPC: H04W76/04 ,  H04W16/14 ,  H04W72/04 ,  H04W28/26 ,  H04L5/00

CPC classification number: H04W76/25 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0073 ,  H04W16/14 ,  H04W28/26 ,  H04W72/0413 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/14 ,  H04W74/02

Abstract: Techniques are described for wireless communication. One method includes receiving, in a downlink portion of a transmission structure on a shared radio frequency spectrum band, an uplink grant for an uplink data portion of the transmission structure. The transmission structure includes the downlink portion, followed by and time domain multiplexed with an uplink control portion, followed by and time domain multiplexed with the uplink data portion. The method also includes retaining access to the shared radio frequency spectrum band by transmitting an unscheduled transmission during the uplink control portion of the transmission structure.

公开(公告)号：US20180054783A1

公开(公告)日：2018-02-22

申请号：US15659584

申请日：2017-07-25

Applicant: QUALCOMM Incorporated

Inventor： Tao Luo ,  Juan Montojo ,  Tamer Kadous ,  Junyi Li ,  Xiaoxia Zhang ,  Jing Sun ,  Taesang Yoo ,  Siddhartha Mallik

IPC: H04W52/16 ,  H04W52/24 ,  H04W52/42 ,  H04W52/14 ,  H04W52/56 ,  H04W52/38 ,  H04W52/50 ,  H04B7/216

Abstract: Various aspects of the disclosure relate to power control for independent links. For example, power control at a device may be based on transmissions on 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). For example, the first device may communicate with a second device (e.g., a TRP) via a first link and communicate with a third device (e.g., a TRP) via a second link. In some scenarios, power control for the first device may be based on power control commands received on multiple links. In some scenarios, a power control constraint may be met taking into account the transmission power on multiple links.

公开(公告)号：US20180054382A1

公开(公告)日：2018-02-22

申请号：US15659574

申请日：2017-07-25

Applicant: QUALCOMM Incorporated

Inventor： Tao Luo ,  Juan Montojo ,  Tamer Kadous ,  Junyi Li ,  Xiaoxia Zhang ,  Jing Sun ,  Taesang Yoo ,  Siddhartha Mallik

IPC: H04L12/761 ,  H04L12/18 ,  H03M13/09

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.

公开(公告)号：US09900074B2

公开(公告)日：2018-02-20

申请号：US14818049

申请日：2015-08-04

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：US20170006458A1

公开(公告)日：2017-01-05

申请号：US15264236

申请日：2016-09-13

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Siddhartha Mallik ,  Ravi Palanki ,  Naga Bhushan ,  Tao Luo ,  Durga Prasad Malladi

IPC: H04W8/00 ,  H04W72/04 ,  H04W4/02 ,  H04L29/08 ,  H04W56/00

CPC classification number: H04W8/005 ,  H04L5/0053 ,  H04L67/104 ,  H04W4/02 ,  H04W56/002 ,  H04W56/0025 ,  H04W72/00 ,  H04W72/0453 ,  H04W76/10 ,  H04W92/18

Abstract: Techniques for performing peer discovery to enable peer-to-peer (P2P) communication are disclosed. In an aspect, a proximity detection signal used for peer discovery may be generated based on one or more physical channels and/or signals used in a wireless network. In one design, a user equipment (UE) may generate a proximity detection signal occupying at least one resource block based on a SC-FDMA modulation technique. In another design, the UE may generate a proximity detection signal occupying at least one resource block based on an OFDMA modulation technique. The UE may generate SC-FDMA symbols or OFDMA symbols in different manners for different physical channels. In yet another design, the UE may generate a proximity detection signal including a primary synchronization signal and a secondary synchronization signal. For all designs, the UE may transmit the proximity detection signal to indicate its presence and to enable other UEs to detect the UE.

Abstract translation: 公开了用于执行对等体发现以实现对等（P2P）通信的技术。 在一方面，可以基于在无线网络中使用的一个或多个物理信道和/或信号来生成用于对等体发现的接近检测信号。 在一种设计中，用户设备（UE）可以基于SC-FDMA调制技术生成占用至少一个资源块的接近检测信号。 在另一种设计中，UE可以基于OFDMA调制技术生成占用至少一个资源块的接近检测信号。 UE可以针对不同的物理信道以不同的方式生成SC-FDMA符号或OFDMA符号。 在又一设计中，UE可以产生包括主同步信号和次同步信号的接近检测信号。 对于所有设计，UE可以发送接近检测信号以指示其存在并使其他UE能够检测UE。

公开(公告)号：US20160380724A1

公开(公告)日：2016-12-29

申请号：US15173206

申请日：2016-06-03

Applicant: QUALCOMM Incorporated

Inventor： Durga Prasad Malladi ,  Yongbin Wei ,  Taesang Yoo ,  Siddhartha Mallik ,  Jing Sun

IPC: H04L1/00 ,  H04W84/04 ,  H03M13/45 ,  H04B17/336

CPC classification number: H04L1/0045 ,  H03M13/45 ,  H04B17/336 ,  H04L1/1812 ,  H04L1/1835 ,  H04L1/1845 ,  H04W84/042

Abstract: Methods, systems, and devices for soft hybrid automatic repeat request operation in wireless communication are described. A user equipment (UE) may fail to decode a received signal, for example. The UE may store a portion of the signal in a buffer if the signal size is greater than the buffer size; otherwise, the UE may store the entire signal in the buffer. The UE may then receive a second signal and combine the second signal with the stored portion of the first signal; the combined signal may be larger than the buffer size. This combined signal may, for example, have a code rate less than the first signal. The UE may perform a second decoding attempt on the combined signal. The UE may determine that the second decoding attempt failed and may store a portion of the combined signal in the buffer.

Abstract translation: 描述了用于无线通信中的软混合自动重传请求操作的方法，系统和设备。 例如，用户设备（UE）可能无法解码所接收的信号。 如果信号大小大于缓冲器大小，则UE可以将该信号的一部分存储在缓冲器中; 否则，UE可以将整个信号存储在缓冲器中。 然后，UE可以接收第二信号并将第二信号与存储的第一信号的部分组合; 组合信号可能大于缓冲器大小。 该组合信号可以例如具有小于第一信号的码率。 UE可以对组合信号执行第二解码尝试。 UE可以确定第二解码尝试失败并且可以将组合信号的一部分存储在缓冲器中。

公开(公告)号：US20160192395A1

公开(公告)日：2016-06-30

申请号：US14972344

申请日：2015-12-17

Applicant: QUALCOMM Incorporated

Inventor： Taesang Yoo ,  Tao Luo ,  Arumugam Chendamarai Kannan ,  Siddhartha Mallik

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

CPC classification number: H04W74/0808 ,  H04B7/0691 ,  H04B7/0695 ,  H04B7/0874 ,  H04B7/088 ,  H04L5/0048 ,  H04W16/14 ,  H04W72/044 ,  H04W74/08

Abstract: Techniques are provided for accessing a shared radio frequency spectrum band by selecting a subset antennas associated with a successful access procedure for accessing the shared radio frequency spectrum. In some examples, a wireless communication device, such as a network node, may perform a listen before talk (LBT) procedure for each of two or more subsets of antennas associated with the network node, and only those subsets of antennas that pass the LBT procedure are used for transmissions during the associated time period, while other antennas are idle, or used for transmissions on another radio frequency spectrum band during the associated time period. In some examples, antennas of a wireless communication device may perform an access procedure utilizing beamforming capabilities of associated antennas to determine one or more different spatial directions that may provide access to the shared radio frequency spectrum band.

Abstract translation: 提供技术用于通过选择与访问共享射频频谱的成功访问过程相关联的子集天线来访问共享射频频带。 在一些示例中，诸如网络节点的无线通信设备可以针对与网络节点相关联的两个或更多个天线子集中的每一个执行听即演（LBT）过程，并且仅执行通过LBT的那些天线子集 过程用于在相关时间段期间的传输，而其它天线是空闲的，或者用于在相关联的时间段期间的另一个射频频带上的传输。 在一些示例中，无线通信设备的天线可以使用相关天线的波束成形能力来执行访问过程，以确定可提供对共享射频频带的访问的一个或多个不同的空间方向。

公开(公告)号：US20160066345A1

公开(公告)日：2016-03-03

申请号：US14812983

申请日：2015-07-29

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Tao Luo ,  Yongbin Wei ,  Durga Prasad Malladi ,  Siddhartha Mallik ,  Xiaoxia Zhang ,  Hao Xu

IPC: H04W74/00 ,  H04W72/08

CPC classification number: H04W74/006 ,  H04J11/004 ,  H04W72/082 ,  H04W72/121 ,  H04W72/1289

Abstract: Techniques are described for wireless communication. A first method includes receiving downlink control information for a first UE based at least in part on a group identifier associated with a NOMA group including the first UE and at least a second UE; and receiving a set of NOMA downlink transmissions at the first UE based at least in part on the downlink control information for the first UE. A second method includes receiving downlink control information for a first UE, the downlink control information for the first UE including an indication of at least a second UE; receiving downlink control information for the second UE based at least in part on the indication of at least the second UE; and receiving a set of NOMA downlink transmissions at the first UE based at least in part on the downlink control information for the first UE and the downlink control information for the second UE.

Abstract translation: 技术描述为无线通信。 第一方法包括至少部分地基于与包括第一UE和至少第二UE的NOMA组相关联的组标识符来接收第一UE的下行链路控制信息; 以及至少部分地基于所述第一UE的下行链路控制信息，在所述第一UE处接收一组NOMA下行链路传输。 第二种方法包括接收第一UE的下行链路控制信息，第一UE的下行链路控制信息包括至少第二UE的指示; 至少部分地基于至少所述第二UE的指示来接收所述第二UE的下行链路控制信息; 以及至少部分地基于第一UE的下行链路控制信息和第二UE的下行链路控制信息，在第一UE处接收一组NOMA下行链路传输。