公开(公告)号：US09877203B2

公开(公告)日：2018-01-23

申请号：US15141398

申请日：2016-04-28

Applicant: QUALCOMM Incorporated

Inventor： Taesang Yoo ,  Siddhartha Mallik ,  Xiaoxia Zhang ,  Jing Sun ,  Arumugam Chendamarai Kannan

IPC: H04W16/14 ,  H04L1/16 ,  H04L5/00 ,  H04L1/00 ,  H04W24/10 ,  H04W48/16 ,  H04W72/04 ,  H04W72/08 ,  H04W72/12

CPC classification number: H04W16/14 ,  H04L1/0003 ,  H04L1/16 ,  H04L1/1861 ,  H04L5/0033 ,  H04L5/0048 ,  H04L5/0055 ,  H04L5/0057 ,  H04L5/0073 ,  H04W24/10 ,  H04W48/16 ,  H04W72/0453 ,  H04W72/085 ,  H04W72/1284

Abstract: Methods, systems, and devices are described for wireless communication. A device may use enhanced reporting mechanisms to support control information reporting on shared spectrum. In some cases, a device may utilize enhanced component carriers (eCCs) for data transmissions. In one example, the device may transmit control information (e.g., ACK/NACK, CSI, etc.) to a corresponding device using a CCA exempt transmission (CET). In another example, a device may report control information quasi-periodically. For instance, a device may be assigned a specified interval and a control feedback window for reporting control information (e.g., CSI). The window may provide a duration prior and subsequent to the specified interval during which a UE may transmit control information. For example, the device may perform a CCA reserving the channel for a duration that does not include the specified interval but may transmit feedback information based on determining the specified interval falls within the assigned window.

公开(公告)号：US09813497B2

公开(公告)日：2017-11-07

申请号：US14336533

申请日：2014-07-21

Applicant: QUALCOMM Incorporated

Inventor： Siddhartha Mallik ,  Renqiu Wang ,  Ravi Palanki ,  Naga Bhushan

IPC: H04L29/08 ,  H04W8/00 ,  H04W76/02 ,  H04W84/18

CPC classification number: H04L67/1063 ,  G06F17/3005 ,  H04L67/1061 ,  H04L67/1068 ,  H04W8/005 ,  H04W76/14 ,  H04W84/18

Abstract: Techniques for performing network-assisted peer discovery to enable peer-to-peer (P2P) communication are described. In one design, a device registers with a network entity (e.g., a directory agent) so that the presence of the device and possibly other information about the device can be made known to the network entity. The network entity collects similar information from other devices. The device sends a request to the network entity, e.g., during or after registration. The request includes information used to match the device with other devices, e.g., information about service(s) provided by the device and/or service(s) requested by the device. The directory agent matches requests received from all devices, determines a match between the device and at least one other device, and sends a notification to perform peer discovery. The device performs peer discovery in response to receiving the notification from the network entity.

公开(公告)号：US09780847B2

公开(公告)日：2017-10-03

申请号：US15067932

申请日：2016-03-11

Applicant: QUALCOMM Incorporated

Inventor： Petru Cristian Budianu ,  Jing Sun ,  Siddhartha Mallik ,  Yongbin Wei ,  Durga Prasad Malladi

IPC: H04B1/38 ,  H04L7/00 ,  H04B7/0417 ,  H04L5/00 ,  H04B7/0452 ,  H04L1/00 ,  H04B7/0456 ,  H04B7/06

CPC classification number: H04B7/0417 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0626 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/0028 ,  H04L1/0029 ,  H04L5/0057

Abstract: Channel feedback reporting for non-orthogonal wireless communication systems employing frequency selective channels. A plurality of channel feedback matrices corresponding to a plurality of sub-carriers of a sub-band for a non-orthogonal channel may be determined by a UE, and one or more effective channel feedback matrices for the sub-band may be determined based on the plurality of channel feedback matrices. Each of the one or more effective channel feedback matrices may be associated with corresponding sets of transmission strategies, where each of the corresponding sets of transmission strategies include one or more transmission strategies of a plurality of transmission strategies for the non-orthogonal channel. Channel feedback information representing the one or more effective channel feedback matrices may be reported to a base station, which may estimate channel quality for the plurality of transmission strategies based at least in part on the channel feedback information, for downlink transmissions to UEs over the non-orthogonal channel.

公开(公告)号：US20170013479A1

公开(公告)日：2017-01-12

申请号：US15182273

申请日：2016-06-14

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Tao Luo ,  Xiaoxia Zhang ,  Taesang Yoo ,  Siddhartha Mallik

IPC: H04W24/02 ,  H04L27/26 ,  H04W28/04 ,  H04W24/08 ,  H04W74/06 ,  H04W28/02 ,  H04W74/00 ,  H04B7/06

CPC classification number: H04W24/02 ,  H04B7/0632 ,  H04L27/2601 ,  H04W24/08 ,  H04W28/0236 ,  H04W72/085 ,  H04W74/0808

Abstract: Channel clearance using a shared radio frequency spectrum band may be performed for both a base station and a user equipment (UE). A base station may perform a listen before talk (LBT) procedure and verify one or more channels in a shared radio frequency spectrum band are available for transmissions and, if the LBT procedure is successful, transmit a pre-grant transmission to one or more UEs. The UEs may perform an LBT procedure for channel(s) indicated in the pre-grant transmission. If the UE LBT procedure passes, the UE may transmit a channel clearance signal, and may transmit a feedback communication responsive to the pre-grant transmission. The feedback communication may indicate, for example, the pre-grant transmission was received and which of the one or more channels are available based on the LBT procedure. The base station may receive the feedback communication and initiate transmissions to the UE.

Abstract translation: 可以对基站和用户设备（UE）执行使用共享射频频带的信道间隔。 基站可以执行听话（LBT）过程并且验证共享射频频带中的一个或多个信道可用于传输，并且如果LBT过程成功，则向一个或多个UE发送预授权传输 。 UE可以对预授权传输中指示的信道执行LBT过程。 如果UE LBT过程通过，则UE可以发送信道清除信号，并且可以响应于预授权传输来发送反馈通信。 反馈通信可以指示例如基于LBT过程接收到预授权传输，并且一个或多个信道中的哪一个可用。 基站可以接收反馈通信并发起向UE的传输。

公开(公告)号：US20160234820A1

公开(公告)日：2016-08-11

申请号：US15012541

申请日：2016-02-01

Applicant: QUALCOMM Incorporated

Inventor： Siddhartha Mallik ,  Jelena Damnjanovic ,  Taesang Yoo

IPC: H04W72/04 ,  H04L1/18

CPC classification number: H04W72/0406 ,  H04L1/1819 ,  H04L1/1822 ,  H04L1/1861 ,  H04L1/1896

Abstract: Methods, systems, and devices are described for wireless communication. A transmitting device may send a signal including multiple transport blocks corresponding to multiple simultaneous hybrid automatic repeat request (HARQ) processes. Additional control information may be used to support the multiple simultaneous HARQ processes. For instance, the additional control information may indicate the number of available HARQ processes, an activity state for each HARQ process (e.g., active new data, active retransmission, or inactive), and the redundancy versions of each HARQ process. In some cases, the additional control information may be included in a downlink grant. A receiving device may respond with an acknowledgement or negative acknowledgment (ACK/NACK) for each of the transport blocks. The transmitting device may identify a retransmission status for each HARQ process based on the ACK/NACKs, and transmit new redundancy versions (or new data) to the receiving device.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 发送设备可以发送包括对应于多个同步混合自动重传请求（HARQ）处理的多个传输块的信号。 附加控制信息可以用于支持多个同时的HARQ过程。 例如，附加控制信息可以指示可用HARQ过程的数量，每个HARQ进程的活动状态（例如，活动新数据，主动重传或不活动）以及每个HARQ过程的冗余版本。 在一些情况下，附加控制信息可以被包括在下行链路授权中。 接收设备可以响应每个传输块的确认或否定确认（ACK / NACK）。 发送装置可以基于ACK / NACK识别每个HARQ进程的重传状态，并向接收装置发送新的冗余版本（或新数据）。

公开(公告)号：US20160233999A1

公开(公告)日：2016-08-11

申请号：US15012560

申请日：2016-02-01

Applicant: QUALCOMM Incorporated

Inventor： Arumugam Chendamarai Kannan ,  Taesang Yoo ,  Siddhartha Mallik ,  Jelena Damnjanovic

IPC: H04L5/00 ,  H04W72/04

CPC classification number: H04L5/0055 ,  H04L1/0073 ,  H04L1/1607 ,  H04L1/1621 ,  H04L1/1671 ,  H04L1/1809 ,  H04L1/1861 ,  H04W72/0406 ,  H04W72/044

Abstract: Methods, systems, and devices are described for wireless communication. Wireless devices may exchange data using Medium Access Control (MAC) layer units known as transport blocks which may include a number of code blocks (CBs). A receiving device may attempt to decode each CB and send acknowledgement (ACK) and negative-acknowledgment (NACK) feedback to the transmitting device based on the whether each CB was successfully decoded. The receiving device may determine a format from two or more available formats for transmitting the ACK/NACK feedback. The format for the ACK/NACK feedback may be determined based at least in part on a number of CBs received and a number of CBs that have a NACK feedback. ACK/NACK feedback may be provided on an individual CB basis, or for bundles of CBs. The transmitting device may perform blind decoding of the received feedback to determine the ACK/NACK format and CBs that have NACK feedback.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 无线设备可以使用称为可以包括多个代码块（CB）的传输块的媒体访问控制（MAC）层单元来交换数据。 接收设备可以尝试对每个CB进行解码，并且基于每个CB是否被成功解码来向发送设备发送确认（ACK）和否定确认（NACK）反馈。 接收设备可以从用于发送ACK / NACK反馈的两种或多种可用格式确定格式。 可以至少部分地基于接收的CB的数量和具有NACK反馈的CB的数量来确定ACK / NACK反馈的格式。 可以在单独的CB基础上提供ACK / NACK反馈，或者对于CB的捆绑提供ACK / NACK反馈。 发送装置可以执行接收到的反馈的盲解码以确定具有NACK反馈的ACK / NACK格式和CB。

公开(公告)号：US20160226643A1

公开(公告)日：2016-08-04

申请号：US14965458

申请日：2015-12-10

Applicant: QUALCOMM Incorporated

Inventor： Siddhartha Mallik ,  Taesang Yoo ,  Jelena Damnjanovic

IPC: H04L5/00 ,  H04L1/18 ,  H04L1/00 ,  H04W72/04

CPC classification number: H04L5/0055 ,  H04L1/0057 ,  H04L1/0089 ,  H04L1/18 ,  H04L1/1819 ,  H04L1/1822 ,  H04L1/1896 ,  H04W72/0446

Abstract: Methods, systems, and devices are described for wireless communication. Wireless devices may exchange data using Medium Access Control (MAC) layer units known as transport blocks. The transport blocks may be partitioned into code block clusters (CBCs), each of which may include one or more code blocks. A receiving device may attempt to decode a transport block and send acknowledgement (ACK) and negative-acknowledgment (NACK) information to the transmitting device based on the whether each CBC was successfully decoded. The transmitting device may retransmit a redundancy version of a CBC for each NACK received. The transmitting device may group CBCs in segments of a transport block according to redundancy version. In some cases, the transmitting device may send a control message in a control channel which indicates the composition of the transport block.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 无线设备可以使用称为传输块的媒体访问控制（MAC）层单元交换数据。 传输块可以被划分为代码块集群（CBC），每个代码块集群可以包括一个或多个代码块。 接收设备可以尝试对传输块进行解码，并且基于每个CBC是否被成功解码，向发送设备发送确认（ACK）和否定确认（NACK）信息。 发送设备可以为接收的每个NACK重传CBC的冗余版本。 发送装置可以根据冗余版本在传输块的段中对CBC进行分组。 在一些情况下，发送设备可以在指示传输块的组成的控制信道中发送控制消息。

公开(公告)号：US20160119951A1

公开(公告)日：2016-04-28

申请号：US14922724

申请日：2015-10-26

Applicant: QUALCOMM Incorporated

Inventor： Siddhartha Mallik ,  Tao Luo ,  Srinivas Yerramalli

IPC: H04W74/00 ,  H04W52/34

CPC classification number: H04W52/346 ,  H04L5/001 ,  H04L5/0048 ,  H04L5/0053 ,  H04L27/0006 ,  H04W74/0808

Abstract: Multi-channel channel state information (CSI) design is disclosed for long term evolution (LTE)/LTE-Advanced (LTE-A) systems with unlicensed spectrum. A “reference” CSI process defined for each channel/carrier. The reference CSI process is defined across each channel in any particular band that the transmitter is configured to support. The transmit power for such reference CSI processes is spread equally over each such channel. In order to report CSI for a subset of channels under an unequal power split assumption, a user equipment (UE) may apply a different power offset in the computation of the CSI process. Alternatively, an auxiliary CSI process may be defined for reporting CSI of a subset of channels with unequal distribution of powers across different channels in a band.

Abstract translation: 公开了具有非许可频谱的长期演进（LTE）/ LTE-Advanced（LTE-A）系统的多信道信道状态信息（CSI）设计。 为每个频道/载波定义的“参考”CSI进程。 在发射机被配置为支持的任何特定频带中的每个信道上定义参考CSI进程。 这种参考CSI过程的发射功率在每个这样的信道上均匀分布。 为了在不相等的功率分配假设下报告信道子集的CSI，用户设备（UE）可以在CSI过程的计算中应用不同的功率偏移。 或者，可以定义辅助CSI过程，用于报告在频带中不同信道上的功率分配不等的信道子集的CSI。

公开(公告)号：US20160088646A1

公开(公告)日：2016-03-24

申请号：US14850737

申请日：2015-09-10

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Tao Luo ,  Siddhartha Mallik ,  Yongbin Wei ,  Durga Prasad Malladi

IPC: H04W72/12 ,  H04B7/04 ,  H04B7/06 ,  H04W72/08

CPC classification number: H04B7/0619 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/0636 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/0028 ,  H04W72/1226

Abstract: Dual-thread feedback for non-orthogonal channels used in wireless communications systems is described. A first feedback thread may employ transmission strategy (TS) independent feedback and a second feedback thread may employ TS dependent feedback. The first feedback thread may include channel feedback from channel measurements (e.g., channel gain, noise covariance, etc.) and may be fed back periodically. A TS space may be determined that includes combinable TSs for UEs that may be grouped for non-orthogonal techniques, and one or more TS sets may be sent to the UEs. UEs may determine channel quality and/or other channel state information (CSI) for the TSs and report CSI for one or more TSs of the TS sets in a second feedback thread. Scheduling may be performed for transmissions to the UEs based on the feedback in the first and/or second feedback threads.

Abstract translation: 描述了用于无线通信系统中的非正交信道的双线程反馈。 第一反馈线程可以采用传输策略（TS）独立反馈，第二反馈线程可以采用TS依赖反馈。 第一反馈线程可以包括来自信道测量的信道反馈（例如，信道增益，噪声协方差等）并且可以周期性地反馈。 可以确定TS空间，其包括可以针对非正交技术分组的UE的可组合TS，并且可以向UE发送一个或多个TS集合。 UE可以确定TS的信道质量和/或其他信道状态信息（CSI），并且在第二反馈线程中为TS集合的一个或多个TS报告CSI。 可以基于第一和/或第二反馈线程中的反馈来执行针对UE的传输的调度。

公开(公告)号：US09270441B2

公开(公告)日：2016-02-23

申请号：US13863927

申请日：2013-04-16

Applicant: QUALCOMM Incorporated

Inventor： Siddhartha Mallik ,  Tao Luo ,  Aleksandar Damnjanovic

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

Abstract translation: 在无线通信中使用的系统，方法和设备可以包括创建，调度和/或使用具有至少一个准ABS的传输，所述准ABS包括与宏节点中的多个扇区的指定扇区相对应的至少一个宏集合。 可以形成和划分这样的子帧以提供可由范围扩展资源（例如微微节点或用户实体）使用的分区。