公开(公告)号：US20190053320A1

公开(公告)日：2019-02-14

申请号：US16033013

申请日：2018-07-11

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Ashwin Sampath ,  Sundar Subramanian ,  Juergen Cezanne ,  Sumeeth Nagaraja ,  Jianghong Luo

IPC: H04W76/28 ,  H04W52/02 ,  H04L5/00 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communication are described for discontinuous reception (DRX) wake up procedures over millimeter wave (mmW) frequency resources. A base station may use multiple antenna ports to transmit one or more beamformed downlink transmissions to a user equipment (UE). The downlink transmissions may include beam-swept reference signals, and the UE may initiate a wake up procedure prior to a configured DRX-On cycle to receive the reference signals. Based on the reception of the reference signals, the UE may train a set of receive beams and determine a preferred downlink transmit beam. The base station may subsequently transmit at least a portion of a cell radio network temporary identifier (C-RNTI) in a beam-swept manner, and the UE may evaluate the C-RNTI transmission on the preferred transmit beam. The UE may also transmit an uplink response indicating the preferred transmit beam to receive downlink data.

公开(公告)号：US20190053162A1

公开(公告)日：2019-02-14

申请号：US16042780

申请日：2018-07-23

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Jianghong Luo ,  Sumeeth Nagaraja ,  Ashwin Sampath ,  Sundar Subramanian

IPC: H04W52/02 ,  H04W16/28 ,  H04W76/28 ,  H04W16/14 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communication are described. A base station may identify that data is available to be transmitted to a user equipment (UE) that is operating in a discontinuous reception mode. The base station may transmit, based at least in part on identifying that the data is available to be transmitted to the UE, a wakeup message to the UE using a first transmit beam. The base station may initiate a beam management procedure based at least in part on identifying that the data is available to be transmitted to the UE, to identify a second transmit beam for the base station to use to transmit the available data to the UE, wherein the second transmit beam comprises a narrower beam width than the first transmit beam.

公开(公告)号：US20180376438A1

公开(公告)日：2018-12-27

申请号：US16008748

申请日：2018-06-14

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Navid Abedini ,  Junyi Li ,  Bilal Sadiq ,  Chinmay Vaze ,  Sumeeth Nagaraja ,  Juergen Cezanne

IPC: H04W56/00 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) being served by a first cell may receive a synchronization signal (SS) block from the first cell. The UE may also receive an SS block from a second cell. The first cell may determine synchronization assistance information for the second cell and transmit the synchronization assistance information to the UE. The UE may use the synchronization assistance information to determine the index for the SS block from the second cell. For example, the synchronization assistance information may indicate that the UE is to use the index of the SS block from the first cell as the index for the SS block from the second cell. Once the index for the SS block from the second cell is determined, the UE may identify the subframe or slot timing used by the second cell and proceed with cell acquisition.

公开(公告)号：US20180310231A1

公开(公告)日：2018-10-25

申请号：US16017732

申请日：2018-06-25

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Tao Luo ,  Sumeeth Nagaraja ,  Xiaoxia Zhang

IPC: H04W48/12 ,  H04W74/00 ,  H04W72/04 ,  H04L5/00 ,  H04W48/10

CPC classification number: H04W48/12 ,  H04L5/005 ,  H04L5/0053 ,  H04W48/10 ,  H04W72/042 ,  H04W72/0453 ,  H04W74/004

Abstract: Methods, systems, and devices for wireless communication are described. A network entity may identify a first frequency range of a system bandwidth that is used for transmission of synchronization information. The network may identify a second frequency range of the system bandwidth that is used for transmission of common control information. The second frequency range may be a function of the first frequency range. The first and second frequency ranges may be less than the system bandwidth. In some cases, the second frequency range and the first frequency range may be a same frequency range. The network entity may transmit the common control information on a frequency within the second frequency range of the system bandwidth.

公开(公告)号：US20180227102A1

公开(公告)日：2018-08-09

申请号：US15875524

申请日：2018-01-19

Applicant: QUALCOMM Incorporated

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

IPC: H04L5/00 ,  H04W72/04 ,  H04B7/06

Abstract: Some wireless communication systems may operate in frequency ranges that are associated with beamformed transmissions between wireless devices. In such systems, a user equipment (UE) may be configured to monitor physical downlink control channel (PDCCH) on multiple beam pair links. In order to decode relevant downlink control information (DCI), a UE may perform multiple blind decodes on a control region of a downlink transmission. Blind decoding may be resource-intensive (e.g., computationally complex, energy consuming, etc.), but some systems may be efficiently designed to support the desired PDCCH monitoring via multiple beam pair links without significantly increasing the number of blind decodes at the UE. Aspects of such a design may include non-uniform candidate restriction, beam pair link-specific search spaces, and random control channel element (CCE) mapping across a candidate search space.

公开(公告)号：US20180084473A1

公开(公告)日：2018-03-22

申请号：US15703460

申请日：2017-09-13

Applicant: QUALCOMM Incorporated

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

IPC: H04W36/30 ,  H04W24/04 ,  H04W74/08

CPC classification number: H04W36/30 ,  H04W24/04 ,  H04W36/0077 ,  H04W36/08 ,  H04W72/046 ,  H04W74/0833

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：US20180070380A1

公开(公告)日：2018-03-08

申请号：US15385058

申请日：2016-12-20

Applicant: QUALCOMM Incorporated

Inventor： Sumeeth Nagaraja ,  Tao Luo ,  Sony Akkarakaran ,  Makesh Pravin John Wilson ,  Aitzaz Ahmad ,  Kaushik Chakraborty

IPC: H04W74/08 ,  H04W72/04 ,  H04W16/28

CPC classification number: H04W74/0833 ,  H04B7/00 ,  H04B7/0695 ,  H04W16/28 ,  H04W72/0406 ,  H04W72/0446

Abstract: Wireless communications systems and methods related to performing random access procedures. A base station (BS) receives, from a user equipment (UE), a plurality of random access preambles from a plurality of beam directions, wherein each of the plurality of random access preambles is received from a different beam direction, and wherein the plurality of random access preambles are associated with multiple random access opportunities of a random access attempt. The BS sends, in response to the plurality of random access preambles, a plurality of random access response (RAR) messages in the plurality of beam directions.

公开(公告)号：US09832754B1

公开(公告)日：2017-11-28

申请号：US15289043

申请日：2016-10-07

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Tao Luo ,  Sumeeth Nagaraja

IPC: H04W68/02 ,  H04B7/06 ,  H04W68/06 ,  H04L25/02 ,  H04W68/04

CPC classification number: H04W68/02 ,  H04B7/0617 ,  H04L25/0202 ,  H04W16/28 ,  H04W68/04 ,  H04W68/06 ,  H04W68/08

Abstract: Systems and methods of wireless communication of a paging signal are disclosed. According to some aspects of the disclosure, a sequence of a plurality of beam configurations may be selected for use in communicating a paging signal between a pair of wireless devices. Beam configurations can include beam configurations of different angular widths. Beam configurations may be iteratively used to attempt to successfully communicate the paging signal between the pair of wireless devices. Each iteration may use a beam configuration of a different angular width and/or a plurality of facing angles. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US09451480B2

公开(公告)日：2016-09-20

申请号：US14444582

申请日：2014-07-28

Applicant: QUALCOMM Incorporated

Inventor： Yichao Huang ,  Chirag Sureshbhai Patel ,  Tamer Adel Kadous ,  Mehmet Yavuz ,  Lili Zhang ,  Rajat Prakash ,  Vinay Chande ,  Christophe Chevallier ,  Sumeeth Nagaraja ,  Farhad Meshkati ,  Suhas Mitra ,  Vansh Pal Singh Makh ,  Yeliz Tokgoz ,  Cong Shen ,  Varun Khaitan

IPC: H04W4/00 ,  H04W24/02 ,  H04B17/391 ,  H04W52/34 ,  H04W24/10 ,  H04W52/24 ,  H04W88/08 ,  H04W52/22 ,  H04B17/318 ,  H04W84/04

CPC classification number: H04W24/02 ,  H04B17/318 ,  H04B17/391 ,  H04W24/10 ,  H04W52/226 ,  H04W52/244 ,  H04W52/245 ,  H04W52/346 ,  H04W84/045 ,  H04W88/08

Abstract: Methods and apparatus for communication comprise aspects that include performing a power management procedure for configuring a subset of network entities to receive one or more of downlink signal measurements and/or one or more uplink signal measurements. The methods and apparatus further comprise aspects that include storing the one or more one or more of downlink signal measurements and/or one or more uplink signal measurements associated with the subset of network entities at a database for managing transmit power at the subset of network entities. Moreover, the methods and apparatus comprise aspects that include adjusting a transmit power value of at least one of the subset of network entities from a first transmit power value to a second transmit power value based at least in part on the one or more of downlink signal measurements and/or one or more uplink signal measurements.

Abstract translation: 用于通信的方法和装置包括以下方面：包括执行用于配置网络实体的子集以接收下行链路信号测量和/或一个或多个上行链路信号测量中的一个或多个的功率管理过程。 所述方法和装置还包括这样的方面，其包括存储一个或多个下行链路信号测量和/或与网络实体的子集相关联的一个或多个上行链路信号测量数据库，用于管理网络实体的子集处的发射功率 。 此外，所述方法和装置包括以下方面：至少部分地基于所述一个或多个下行链路信号来调整网络实体的子集中的至少一个的发射功率值从第一发射功率值到第二发射功率值 测量和/或一个或多个上行链路信号测量。

公开(公告)号：US09386534B2

公开(公告)日：2016-07-05

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 ,  H04W52/38 ,  H04W16/14 ,  H04W52/24 ,  H04W88/10

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。