公开(公告)号：US09294978B2

公开(公告)日：2016-03-22

申请号：US14044778

申请日：2013-10-02

Applicant: QUALCOMM Incorporated

Inventor： Sumeeth Nagaraja ,  Mehmet Yavuz ,  Farhad Meshkati ,  Andrei Dragos Radulescu ,  Christophe Chevallier

IPC: H04W36/00 ,  H04W36/16 ,  H04W36/04 ,  H04W84/04

CPC classification number: H04W36/0061 ,  H04W36/0005 ,  H04W36/04 ,  H04W36/16 ,  H04W84/045

Abstract: Methods, apparatuses, and computer program products are disclosed for facilitating a beacon-assisted handover from a macro network to a femto cell during an active call. A femto cell management system assigns a unique identifier to a femto cell, which the femto cell utilizes to broadcast a beacon at a frequency different than the operating frequency of the femto cell. A wireless terminal receives a control message from the macro network directing the wireless terminal to scan particular frequencies. The wireless terminal subsequently provides a report to the macro network identifying attributes ascertained from the scan, which includes attributes associated with the beacon. The macro network then performs a handover from the macro network to the femto cell as a function of the attributes.

Abstract translation: 公开了方法，装置和计算机程序产品，用于促进在活动呼叫期间从宏网络到毫微微小区的信标辅助切换。 毫微微小区管理系统向毫微微小区分配唯一标识符，毫微微小区利用毫微微小区以与毫微微小区的工作频率不同的频率广播信标。 无线终端从宏网络接收指示无线终端扫描特定频率的控制消息。 无线终端随后向宏网络提供识别从扫描确定的属性的报告，其包括与信标相关联的属性。 然后，宏网络根据属性执行从宏网络到毫微微小区的切换。

公开(公告)号：US09277468B2

公开(公告)日：2016-03-01

申请号：US14716712

申请日：2015-05-19

Applicant: QUALCOMM Incorporated

Inventor： Sumeeth Nagaraja ,  Farhad Meshkati ,  Damanjit Singh ,  Vinay Chande ,  Andrei Dragos Radulescu ,  Mehmet Yavuz

IPC: H04W72/00 ,  H04W36/00 ,  H04W24/02 ,  H04W24/10 ,  H04W36/08 ,  H04W36/30 ,  H04W76/02 ,  H04W48/12 ,  H04W88/08

CPC classification number: H04W36/0083 ,  H04W24/02 ,  H04W24/10 ,  H04W36/08 ,  H04W36/30 ,  H04W48/12 ,  H04W76/11 ,  H04W88/08

Abstract: Access terminals are provisioned to conduct intra-frequency, inter-frequency, and inter-RAT measurements and report physical layer identifiers of detected cells. The provisioning may involve cycling through all or a portion of a defined superset of physical layer identifier one subset at a time. In addition, the physical layer identifiers may be prioritized to improve the search procedure. Measurement report messages (including physical layer identifiers of the detected cells) are received at an access point as a result of the provisioning. A neighbor cell list for the femtocell is maintained based on the received measurement report messages and, optionally, other information. This other information may related to, for example, one or more of: physical layer identifier information received from access terminals that register with the access point, physical layer identifier information received via network listen operations, information regarding co-located cells, or physical layer identifier information received from a network entity.

公开(公告)号：US20150119063A1

公开(公告)日：2015-04-30

申请号：US14485511

申请日：2014-09-12

Applicant: QUALCOMM Incorporated

Inventor： Liwen Yu ,  Sumeeth Nagaraja ,  Farhad Meshkati ,  Rajat Prakash ,  Tao Chen

IPC: H04W52/18 ,  H04W24/02

CPC classification number: H04W52/18 ,  H04W16/14 ,  H04W24/02 ,  H04W52/244 ,  H04W52/38 ,  H04W72/00 ,  H04W88/10

Abstract: Described herein are techniques for mode selection and power management for multimode small cells. For example, the technique may involve taking measurements, at the access point, of a macro cell in a vicinity of the access point. The technique may involve managing power or resources of a first RAT and a second RAT based on the measurements, wherein the power of at least one of the first RAT or second RAT is associated with coverage area of the macro cell.

Abstract translation: 这里描述了用于多模小单元的模式选择和功率管理的技术。 例如，该技术可以涉及在接入点处在接入点附近的宏小区进行测量。 该技术可以涉及基于测量管理第一RAT和第二RAT的功率或资源，其中第一RAT或第二RAT中的至少一个的功率与宏小区的覆盖区域相关联。

公开(公告)号：US20150117206A1

公开(公告)日：2015-04-30

申请号：US14525063

申请日：2014-10-27

Applicant: QUALCOMM Incorporated

Inventor： Andrei Dragos Radulescu ,  Farhad Meshkati ,  Rajat Prakash ,  Rashmin Ranjitsinh Anjaria ,  Sumeeth Nagaraja ,  Tao Chen ,  Vinod Viswanatha Menon ,  Sanjay Sridhar Kamath

IPC: H04W28/10 ,  H04W36/26 ,  H04W72/04 ,  H04W28/02

CPC classification number: H04L43/0852 ,  H04L41/142 ,  H04L43/0858 ,  H04L43/0864 ,  H04L43/0888 ,  H04L43/10 ,  H04L43/103 ,  H04L47/125 ,  H04L47/14 ,  H04L47/193 ,  H04L47/283 ,  H04L67/2861 ,  H04L69/16 ,  H04W24/00 ,  H04W28/0226 ,  H04W28/0247 ,  H04W28/0273 ,  H04W28/0284 ,  H04W28/0289 ,  H04W28/08 ,  H04W28/10 ,  H04W36/0072 ,  H04W36/22 ,  H04W36/26 ,  H04W72/042 ,  H04W72/0446 ,  H04W84/045 ,  H04W88/08 ,  H04W88/182

Abstract: The present disclosure presents a method and an apparatus for passive estimation mechanism for backhaul management at a small cell base station. For example, the method may include determining, at the small cell base station, whether a time slot utilization of a flow at a user equipment (UE) in communication with the small cell base station is above a first threshold, wherein a plurality of time slots are associated with the flow, determining whether an average throughput of the flow is below a second threshold in response to determining that the time slot utilization is above the first threshold, and identifying that the flow is not satisfied in response to determining that the average throughput of the flow is below the second threshold. As such, passive estimation mechanism for backhaul management at a small cell base station may be achieved.

Abstract translation: 本公开提供了一种用于小型小区基站的回程管理的被动估计机制的方法和装置。 例如，该方法可以包括在小小区基站确定与小小区基站通信的用户设备（UE）的时隙利用率是否高于第一阈值，其中多个时间 时隙与流相关联，响应于确定时隙利用率高于第一阈值，确定流的平均吞吐量是否低于第二阈值，并且响应于确定该平均流量的平均值 流量的吞吐量低于第二阈值。 因此，可以实现小小区基站的回程管理的被动估计机制。

公开(公告)号：US12256434B2

公开(公告)日：2025-03-18

申请号：US16634563

申请日：2018-07-10

Applicant: Qualcomm Incorporated

Inventor： Muhammad Nazmul Islam ,  Tao Luo ,  Sumeeth Nagaraja ,  Peng Cheng ,  Sundar Subramanian ,  Keiichi Kubota

IPC: H04W4/00 ,  H04W36/00 ,  H04W72/044 ,  H04W74/0833 ,  H04W76/27 ,  H04W36/08

Abstract: Methods, systems, and devices for wireless communication are described. In some wireless systems, a user equipment (UE) may access a network or cell using a random access (RACH) procedure. A base station may allocate dedicated RACH resources and common RACH resources for the UE to transmit a RACH preamble message on and may convey a configuration for the UE. In some cases, the UE may perform multiple transmissions of the RACH preamble message in the dedicated RACH resources, and based on the configuration may determine whether to perform a single or multiple transmissions of the RACH preamble message in the common RACH resources. The UE may transmit the messages using the same or different uplink transmit beams, and the base station may receive the messages using the same or different uplink reception beams. These multiple transmissions may reduce latency and improve reliability of the RACH procedure.

公开(公告)号：US12015569B2

公开(公告)日：2024-06-18

申请号：US17651739

申请日：2022-02-18

Applicant: QUALCOMM Incorporated

Inventor： Tao Luo ,  Makesh Pravin John Wilson ,  Sumeeth Nagaraja ,  Sony Akkarakaran

IPC: H04L5/00 ,  H04L5/02 ,  H04L27/26 ,  H04L49/552 ,  H04W48/12 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/23 ,  H04W72/51

CPC classification number: H04L5/0007 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0092 ,  H04L5/023 ,  H04L27/2602 ,  H04L27/26025 ,  H04L49/552 ,  H04W72/0446 ,  H04W72/23 ,  H04L5/0051 ,  H04L27/26035 ,  H04W48/12 ,  H04W72/0453 ,  H04W72/51

Abstract: Networks that support 5G communication may support different numerologies across and even within a symbol, slot, or subframe. Sequences, such as reference signals or data scrambled with a scrambling code, may be transmitted on resources with such mixed numerologies. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a user equipment. The UE may be configured to receive an indication of assigned resources for communicating with a base station. The UE may also be configured to determine a numerology associated with the assigned resources, and to determine one or more indices based on the numerology. The UE may also generate a sequence based on the one or more indices and communicate with the base station based on the sequence.

公开(公告)号：US11968570B2

公开(公告)日：2024-04-23

申请号：US15703460

申请日：2017-09-13

Applicant: QUALCOMM Incorporated

Inventor： Sumeeth Nagaraja ,  Ajay Gupta ,  Vinod Menon ,  Tao Luo

IPC: H04W36/00 ,  H04W24/04 ,  H04W36/08 ,  H04W72/044 ,  H04W74/0833

CPC classification number: H04W36/0066 ,  H04W24/04 ,  H04W36/0077 ,  H04W36/0079 ,  H04W74/0833 ,  H04W36/08 ,  H04W72/046

Abstract: Techniques are disclosed for handover of a user equipment (UE) from a serving base station to a target base station. A target base station may use one or more directional beams to establish wireless communication links with UEs within a coverage area of the target base station. Directional beams may create a narrow-beam, high-bandwidth connection with a UE in a limited geographic area. Handover procedures include some latency between when a target base station dedicates resources to a UE and when the UE executes a communication via those dedicated resources. To compensate for latencies in a handover procedure and for the geographic limitations of directional beams, a target base station may assign multiple directional beams to the UE during a handover procedure. Each directional beam may be associated with access parameters used by the UE to generate messages (e.g., a RACH message) during the handover procedure.

公开(公告)号：US11848874B2

公开(公告)日：2023-12-19

申请号：US17343594

申请日：2021-06-09

Applicant: QUALCOMM Incorporated

Inventor： Wooseok Nam ,  Sony Akkarakaran ,  Tao Luo ,  Xiao Feng Wang ,  Makesh Pravin John Wilson ,  Sumeeth Nagaraja ,  Shengbo Chen ,  Yan Zhou

IPC: H04W4/00 ,  H04L5/00 ,  H04L25/02 ,  H04L27/00 ,  H04L27/26 ,  H04L1/00

CPC classification number: H04L5/0005 ,  H04L1/0045 ,  H04L1/0047 ,  H04L1/0072 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/0091 ,  H04L25/0238 ,  H04L25/0258 ,  H04L27/0014 ,  H04L27/2676 ,  H04L5/0053 ,  H04L2027/0026

Abstract: Methods, systems, and devices for wireless communications are described. A base station may identify time and frequency resources for a physical downlink shared channel (PDSCH) to be transmitted to a user equipment (UE) in a first transmission time interval (TTI). The base station may transmit configuration information for a control channel search space set in a second TTI. The second TTI may precede the first TTI. The configuration information may include an indication of an absence of a physical downlink control channel (PDCCH) transmission to send in the control channel search space set indicating the identified time and frequency resources for the PDSCH, and a set of time and frequency resources for the control channel search space set. The UE may receive the configuration information and identify the time and frequency resources allocated for the PDSCH in the second TTI, and receive the PDSCH transmission in the second TTI.

公开(公告)号：US11838066B2

公开(公告)日：2023-12-05

申请号：US17333456

申请日：2021-05-28

Applicant: QUALCOMM Incorporated

Inventor： Wooseok Nam ,  Sony Akkarakaran ,  Tao Luo ,  Bilal Sadiq ,  Muhammad Nazmul Islam ,  Makesh Pravin John Wilson ,  Sumeeth Nagaraja ,  Xiao Feng Wang

IPC: H04B17/309 ,  H04W76/27 ,  H04B7/0417 ,  H04L5/00 ,  H04W24/10 ,  H04W24/02 ,  H04W74/08

CPC classification number: H04B17/309 ,  H04B7/0417 ,  H04L5/0048 ,  H04W24/02 ,  H04W24/10 ,  H04W76/27 ,  H04W74/0833

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for radio link monitoring reference signal (RLM-RS) determination using communications systems operating according to new radio (NR) technologies. For example, a method for wireless communications from a UE generally includes determining resources to monitor for radio link monitoring (RLM) prior to being configured with resources to monitor for RLM after establishing a radio resource control (RRC) connection with a network, and performing RLM based on the determined resources.

公开(公告)号：US11647493B2

公开(公告)日：2023-05-09

申请号：US16138545

申请日：2018-09-21

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Sumeeth Nagaraja ,  Tao Luo

IPC: H04W72/044 ,  H04B7/06 ,  H04W76/19 ,  H04B7/08 ,  H04W16/28 ,  H04W24/04

CPC classification number: H04W72/046 ,  H04B7/0695 ,  H04B7/088 ,  H04W16/28 ,  H04W24/04 ,  H04W76/19

Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a first apparatus may detect a beam failure of a first link between the first apparatus and a second apparatus; transmit a beam failure recovery request indicating the beam failure of the first link, wherein the beam failure recovery request is transmitted via a second link of the first apparatus; and perform a beam failure recovery procedure, to select one or more beams for communication between the first apparatus and the second apparatus, based at least in part on transmitting the beam failure recovery request via the second link. Numerous other aspects are provided.