公开(公告)号：US09258810B2

公开(公告)日：2016-02-09

申请号：US13856913

申请日：2013-04-04

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Hao Xu

IPC: H04W72/04 ,  H04L5/00 ,  H04L27/26

CPC classification number: H04W72/042 ,  H04L5/0053 ,  H04L27/2613

Abstract: Systems and methodologies are described that facilitate unified, low-complexity processing (e.g., user separation and noise estimation) of a control channel. One or more UEs can respectively transmit one or more control signals, which are multiplexed on a control channel and a base station can receive a control channel signal that includes the one or more control signals. The base station, in a single pass, can separate the control signals by matching the control channel signal with a base sequence and translating the matched signal to a time-domain representation. In the time-domain representation, each control signal resides at a different tap. Further, the base station can identify taps of the time-domain representation corresponding to an unused cyclic shift or orthogonal cover sequence. Such taps can be employed to generate a noise and/or interference estimate.

公开(公告)号：US09084240B2

公开(公告)日：2015-07-14

申请号：US14328996

申请日：2014-07-11

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Dung Ngoc Doan ,  Ravi Palanki ,  Naga Bhushan

IPC: H04W72/04 ,  H04W76/02 ,  H04W84/18

CPC classification number: H04W72/04 ,  H04W76/14 ,  H04W84/18

Abstract: Techniques for supporting peer-to-peer (P2P) communication and wide area network (WAN) communication are disclosed. In one aspect, a method operable by a network entity to facilitate peer-to-peer (P2P) communication in a wireless network includes designating a first group of subframes in a wide area network (WAN) uplink (UL) spectrum for WAN communication. The method includes designating a second group of subframes in the WAN UL spectrum for P2P communication. The method further includes allowing P2P mobile entities to use WAN physical layer channels in the second group of subframes to communicate P2P control information and P2P data.

Abstract translation: 公开了用于支持对等（P2P）通信和广域网（WAN）通信的技术。 一方面，由网络实体可操作以促进无线网络中的对等（P2P）通信的方法包括在广域网通信的广域网（WAN）上行链路（UL）频谱中指定第一组子帧。 该方法包括在用于P2P通信的WAN UL频谱中指定第二组子帧。 该方法还包括允许P2P移动实体在第二组子帧中使用WAN物理层信道来传送P2P控制信息和P2P数据。

公开(公告)号：US20140337432A1

公开(公告)日：2014-11-13

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

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.

Abstract translation: 描述了用于执行网络辅助对等体发现以启用对等（P2P）通信的技术。 在一种设计中，设备向网络实体（例如，目录代理）注册，使得设备的存在以及可能的关于设备的其他信息可以被网络实体所知。 网络实体从其他设备收集类似的信息。 该设备向网络实体发送请求，例如在注册期间或之后。 该请求包括用于将设备与其他设备匹配的信息，例如由设备请求的设备和/或服务提供的服务的信息。 目录代理匹配从所有设备接收的请求，确定设备与至少一个其他设备之间的匹配，并发送通知以执行对等体发现。 响应于从网络实体接收到通知，设备执行对等体发现。

公开(公告)号：US08638743B2

公开(公告)日：2014-01-28

申请号：US13744758

申请日：2013-01-18

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Hao Xu

IPC: H04W4/00

CPC classification number: H04W28/04 ,  H04W16/32 ,  H04W72/0413 ,  H04W72/1278 ,  H04W84/045

Abstract: Aspects are described for reducing interference in wireless systems. In a first embodiment, an uplink acknowledgment region associated with a macro cell is determined, and an assignment of uplink control resources is restricted to a region within the uplink acknowledgment region. A control signal is then transmitted to user equipment via the assignment of uplink control resources. In another embodiment, control signals are received from wireless terminals, which include desired uplink control signals associated with an access point base station, as well as interfering uplink acknowledgement signals associated with macro cells. The control signals may then be regenerated by cancelling the set of interfering signals from the control signals. The desired uplink control signals are then decoded.

Abstract translation: 描述了减少无线系统干扰的方面。 在第一实施例中，确定与宏小区相关联的上行链路确认区域，并且上行链路控制资源的分配被限制在上行链路确认区域内的区域。 然后通过上行链路控制资源的分配将控制信号发送到用户设备。 在另一个实施例中，从无线终端接收控制信号，无线终端包括与接入点基站相关联的期望的上行链路控制信号，以及与宏小区相关联的干扰上行链路确认信号。 然后可以通过从控制信号中消除一组干扰信号来再生控制信号。 然后解码所需的上行链路控制信号。

公开(公告)号：US20130230000A1

公开(公告)日：2013-09-05

申请号：US13856913

申请日：2013-04-04

Applicant: QUALCOMM INCORPORATED

Inventor： Renqiu Wang ,  Hao Xu

IPC: H04W72/04

CPC classification number: H04W72/042 ,  H04L5/0053 ,  H04L27/2613

Abstract: Systems and methodologies are described that facilitate unified, low-complexity processing (e.g., user separation and noise estimation) of a control channel. One or more UEs can respectively transmit one or more control signals, which are multiplexed on a control channel and a base station can receive a control channel signal that includes the one or more control signals. The base station, in a single pass, can separate the control signals by matching the control channel signal with a base sequence and translating the matched signal to a time-domain representation. In the time-domain representation, each control signal resides at a different tap. Further, the base station can identify taps of the time-domain representation corresponding to an unused cyclic shift or orthogonal cover sequence. Such taps can be employed to generate a noise and/or interference estimate.

Abstract translation: 描述了促进控制信道的统一的，低复杂度处理（例如，用户分离和噪声估计）的系统和方法。 一个或多个UE可以分别发射一个或多个控制信号，这些控制信号被多路复用在控制信道上，并且基站可以接收包括一个或多个控制信号的控制信道信号。 基站在单次通过中可以通过将控制信道信号与基本序列匹配来分离控制信号，并将匹配的信号转换为时域表示。 在时域表示中，每个控制信号驻留在不同的分接头。 此外，基站可以识别对应于未使用的循环移位或正交覆盖序列的时域表示的抽头。 可以使用这种抽头来产生噪声和/或干扰估计。

公开(公告)号：US12301393B2

公开(公告)日：2025-05-13

申请号：US18156199

申请日：2023-01-18

Applicant: QUALCOMM Incorporated

Inventor： Yiqing Cao ,  Wanshi Chen ,  Jing Lei ,  Renqiu Wang

IPC: H04L27/26 ,  H04L5/00 ,  H04L25/02 ,  H04W72/044

Abstract: Methods, systems, and devices for wireless communications are described. In some systems (e.g., non-orthogonal multiple access (NOMA) systems), a base station may serve a large number of user equipments (UEs) on the uplink. To improve detectability for these uplink transmissions (e.g., if reference signals are not available for the transmissions), the UEs may implement parallel transmissions of preambles with uplink data. A UE may split the uplink data into one or more data layers, and may select one or more preamble layers to transmit superposed with the data layers. These preambles may be sequences known to both the UE and the base station to aid in detectability. The UE may assign different signature sequences to each of these layers based on cross-correlation values (e.g., assigning sequences with higher cross-correlation values to the data layers for improved detectability), and may scramble the layers into a single shared signal for transmission.

公开(公告)号：US12176628B2

公开(公告)日：2024-12-24

申请号：US17660611

申请日：2022-04-25

Applicant: QUALCOMM Incorporated

Inventor： Pinar Sen ,  Seyong Park ,  Abdelrahman Mohamed Ahmed Mohamed Ibrahim ,  Renqiu Wang ,  Naga Bhushan ,  Krishna Kiran Mukkavilli ,  Tingfang Ji

IPC: H01Q3/36 ,  H04B7/0417 ,  H04B17/12 ,  H04B17/17

Abstract: Certain aspects relate to techniques for z-axis rotation estimation for compensating signaling transmitted between two or more nodes over a wireless channel where an antenna array of at least one of the nodes is misaligned about the z-axis relative to another node. For example, a transmitting node may transmit pilot signals defined by phase shifts to provide a receiving node with a basis for estimating the angle of rotation by which the antenna arrays are misaligned. The transmitting node may then take remedial action to address the misalignment based on the estimation.

公开(公告)号：US12149482B2

公开(公告)日：2024-11-19

申请号：US18471277

申请日：2023-09-20

Applicant: QUALCOMM Incorporated

Inventor： Jay Kumar Sundararajan ,  Renqiu Wang ,  Hao Xu ,  Naga Bhushan ,  Haitong Sun ,  Wanshi Chen

IPC: H04L1/08 ,  H04L1/00 ,  H04L1/1607 ,  H04L1/1812 ,  H04L1/1829 ,  H04L1/1867 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may transmit feedback, such as hybrid automatic repeat request (HARQ) feedback for groups of code blocks rather than for an entire transport block or individual code blocks. The wireless device may transmit an acknowledgement (ACK) or negative-acknowledgement (NACK) to provide feedback for each code block group of a set of code block groups. An ACK may indicate that code blocks in a code block group were successfully decoded, and a NACK may indicate that at least one code block in a code block group was not successfully decoded. Wireless devices may support several techniques for grouping code blocks for feedback reporting to allow for efficient retransmissions and limited overhead. Different grouping schemes may be employed depending on system constraints, device capability, link conditions, or the like.

公开(公告)号：US12069633B2

公开(公告)日：2024-08-20

申请号：US18347843

申请日：2023-07-06

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Huilin Xu ,  Renqiu Wang

IPC: H04W72/0453 ,  H04L5/00 ,  H04W72/51

CPC classification number: H04W72/0453 ,  H04L5/0053 ,  H04W72/51

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a network entity, one or more control messages that indicate a configuration for a first downlink bandwidth part (BWP) associated with a first operating mode of the UE, a second downlink BWP associated with a second operating mode of the UE, a first set of resources within the first downlink BWP, and a second set of resources within the second downlink BWP. At least a portion of the configuration may correspond to a capability of the UE. The UE may monitor the first set of resources while in the first operating mode, and may monitor the second set of resources while in the second operating mode. The UE may receive a system information update or a public warning system (PWS) notification from the network entity via the second set of resources.

公开(公告)号：US12069629B2

公开(公告)日：2024-08-20

申请号：US18297803

申请日：2023-04-10

Applicant: QUALCOMM Incorporated

Inventor： Seyed Ali Akbar Fakoorian ,  Alberto Rico Alvarino ,  Peter Gaal ,  Wanshi Chen ,  Yongbin Wei ,  Juan Montojo ,  Renqiu Wang ,  Hao Xu ,  Xiao Feng Wang

IPC: H04W72/0446 ,  H04L5/00 ,  H04L27/20

CPC classification number: H04W72/0446 ,  H04L5/0046 ,  H04L5/0048 ,  H04L27/2078

Abstract: Aspects of the present disclosure provide techniques for uplink (UL) data channel design. An example method is provided for operations which may be performed by a first apparatus. The example method generally comprises determining a number of pilot symbols to transmit for one or more slots of a first subframe based, at least in part, on a coverage enhancement (CE) level, and transmitting at least one uplink data channel having the determined number of pilot symbols in the one or more slots of the first subframe.