公开(公告)号：US20200252973A1

公开(公告)日：2020-08-06

申请号：US16746704

申请日：2020-01-17

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Jing Sun ,  Sony Akkarakaran ,  Muhammad Nazmul Islam ,  Tao Luo

IPC: H04W74/08 ,  H04W76/10

Abstract: This disclosure provides systems, methods and apparatus for wireless communications that support fallback from a 2-step to a 4-step random access procedures. A user equipment (UE) may establish a connection with a base station using a random access procedure. The random access procedure may be a 2-step random access procedure and reduce a number of handover exchange messages. The 2-step random access procedure may include the UE transmitting, to the base station, a first random access message including a preamble and a payload. In some implementations, the base station may receive the preamble but fail to receive or decode the payload. The random access procedure may utilize the received preamble information instead of performing retransmission of the first random access message. The base station may transmit a second random access message to the UE indicating, explicitly or implicitly, a fallback to a 4-step random access procedure for connection establishment.

公开(公告)号：US10736166B2

公开(公告)日：2020-08-04

申请号：US16036026

申请日：2018-07-16

Applicant: QUALCOMM Incorporated

Inventor： Navid Abedini ,  Junyi Li ,  Karl Georg Hampel ,  Sundar Subramanian ,  Muhammad Nazmul Islam ,  Jianghong Luo ,  Juergen Cezanne

IPC: H04L12/26 ,  H04W76/18 ,  H04W72/04 ,  H04W76/14 ,  H04W76/15 ,  H04W24/10 ,  H04W72/12

Abstract: Methods, systems, and devices for wireless communication are described that provide for establishment of communication links between nodes in a wireless network, in which an access node (e.g., a node that provides access to a core network) may provide a communication link configuration and resources for communications between multiple nodes. In some cases, an access node may receive a request from a first node to establish a communication link with a second node. The communication link may be, for example, a directional transmission beam that carries data or control information, or a combination thereof, between the first node and the second node. The access node may determine the communication link configuration based on one or more link measurements provided by the first node or second node, and provide the configuration information to one or both of the first node or the second node.

公开(公告)号：US10736077B2

公开(公告)日：2020-08-04

申请号：US15970524

申请日：2018-05-03

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Bilal Sadiq ,  Sundar Subramanian ,  Navid Abedini ,  Haitong Sun ,  Tao Luo

IPC: H04W68/02 ,  H04W56/00 ,  H04W72/14 ,  H04W72/04 ,  H04W48/12 ,  H04W48/14 ,  H04W76/27

Abstract: Certain aspects of the present disclosure provide techniques for conveying information regarding a window for system information transmissions. Certain aspects of the present disclosure provide techniques for conveying information regarding a window for transmitting paging downlink control information (DCI) or paging messages.

公开(公告)号：US10715241B2

公开(公告)日：2020-07-14

申请号：US16038081

申请日：2018-07-17

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Tao Luo ,  Juergen Cezanne ,  Sundar Subramanian ,  Ashwin Sampath ,  Bilal Sadiq ,  Junyi Li

IPC: H04B7/06 ,  H04B7/0417 ,  H04B7/08 ,  H04L5/00 ,  H04W72/04 ,  H04W72/12 ,  H04W74/08

Abstract: A first apparatus may communicate with a user equipment through a first active beam. The first apparatus may determine that beam tracking is to be performed with the UE, including identifying a new beam for communication between the UE and the apparatus. The first apparatus may perform beam tracking with the UE based on the determination that beam tracking is to be performed. The first apparatus may communicate with the UE through a second active beam based on the beam tracking.

公开(公告)号：US20200220596A1

公开(公告)日：2020-07-09

申请号：US16783746

申请日：2020-02-06

Applicant: QUALCOMM Incorporated

Inventor： Sundar Subramanian ,  Juergen Cezanne ,  Bilal Sadiq ,  Muhammad Nazmul Islam ,  Navid Abedini ,  Junyi Li

IPC: H04B7/06 ,  H04B7/0408 ,  H04W72/04 ,  H04W16/28 ,  H04B7/08 ,  H04L5/00

Abstract: Wireless communication techniques that include beam training performed to aid mobile devices in identifying beams for use in communications (e.g., uplink communications) are discussed. A mobile device may transmit to a base station an indication of a level of beamforming reciprocity of the mobile device. A base station/gNB may transmit an indication of one or more transmission beams to be used by the mobile device for uplink wireless communication based on the level of beamforming reciprocity. The one or more transmission beams to be used by the mobile device for uplink communication may include a reciprocal transmission beam. A mobile device not capable of full beamforming reciprocity may determine a transmission beam through uplink beam training. A mobile device may transmit to a base station information using at least one of the one or more transmission beams. Other aspects and features are also claimed and discussed.

公开(公告)号：US10708919B2

公开(公告)日：2020-07-07

申请号：US16153509

申请日：2018-10-05

Applicant: QUALCOMM Incorporated

Inventor： Sundar Subramanian ,  Muhammad Nazmul Islam ,  Jianghong Luo ,  Ashwin Sampath ,  Junyi Li ,  Juergen Cezanne ,  Bilal Sadiq ,  Navid Abedini

IPC: H04W72/04 ,  H04L5/00 ,  H04B7/06 ,  H04B7/08

Abstract: When a first node is subject to a maximum permissible exposure (MPE) condition, it may be beneficial for the first node to signal, to a second node, an uplink beam to be used for communications and/or one or more properties of the uplink beam. For example, the first node may signal a downlink beam, from a first reciprocal beam pair, and an uplink beam, from a second reciprocal beam pair, to be used for communications, and/or may signal one or more properties of the uplink beam and/or the downlink beam. Additionally, or alternatively, the second node may transmit, to the first node, a signaling state (e.g., a transmission configuration indication (TCI) state) that indicates properties to be used to configure an uplink beam and/or a downlink beam. In this way, the first node and the second node may configure beams in a manner that accounts for MPE limitations.

公开(公告)号：US10700753B2

公开(公告)日：2020-06-30

申请号：US16267303

申请日：2019-02-04

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Juergen Cezanne ,  Junyi Li ,  Sundar Subramanian ,  Tao Luo ,  Raghu Narayan Challa ,  Ruhua He ,  Yong Li ,  Jun Zhu ,  Tianyang Bai

IPC: H04L5/00 ,  H04B7/06 ,  H04B17/327 ,  H04W72/08 ,  H04W72/04 ,  H04W24/10

Abstract: Aspects of the disclosure relate to a method of operating a scheduled entity for wireless communication. In some aspects, the scheduled entity detects a fluctuation in a beam strength of at least one transmit beam from a scheduling entity. The scheduled entity transmits a first message to the scheduling entity, the first message indicating at least the fluctuation in the beam strength of the at least one transmit beam from the scheduling entity.

公开(公告)号：US10681727B2

公开(公告)日：2020-06-09

申请号：US15838145

申请日：2017-12-11

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Junyi Li ,  Tao Luo ,  Sumeeth Nagaraja

IPC: H04W74/08 ,  H04W52/04 ,  H04W74/00 ,  H04W72/12 ,  H04B7/08 ,  H04W52/50 ,  H04W52/32 ,  H04W52/24 ,  H04B7/06 ,  H04W52/14 ,  H04W52/48

Abstract: Methods, systems, and devices for wireless communication are described for selecting different uplink transmission parameters for transmission or retransmission of a random access message. A user equipment (UE) may transmit or retransmit a random access message such as a layer 2 or layer 3 (L2/L3) message to a base station during a random access procedure. The UE may select a transmission beam, uplink resource or transmission power for the transmission of the L2/L3 message that differ from those used for transmission of a previous random access message. The selection may be based on path loss associated with synchronization signals or previous transmissions. The selection may also be based on a maximum number of retransmissions.

公开(公告)号：US20200170010A1

公开(公告)日：2020-05-28

申请号：US16671073

申请日：2019-10-31

Applicant: QUALCOMM Incorporated

Inventor： Jianghong Luo ,  Navid Abedini ,  Muhammad Nazmul Islam ,  Luca Blessent ,  Tao Luo ,  Junyi Li ,  Karl Georg Hampel

IPC: H04W72/04 ,  H04W72/12 ,  H04W84/04 ,  H04W52/14 ,  H04L5/26 ,  H04W88/04

Abstract: An access node may monitor for uplink and downlink resource release indications signaled by a parent access node and a child access node prior to scheduling a released resource. In some cases (e.g., when the child node is capable of half-duplex communications), the parent access node may determine to release a resource, and the child access node may determine to release a hard resource (e.g., a child node controlled resource). Receiving uplink and downlink resource release indications may enable the access node to schedule communication with the child node via a soft resource (e.g., a parent node controlled resource). Other aspects of the described techniques are directed to feedback support for a slot format indicator (SFI). The feedback from the access node may accept or reject the SFI based on an impact the SFI has on scheduling via a child link established with a child node of the access node.

公开(公告)号：US20200100124A1

公开(公告)日：2020-03-26

申请号：US16572219

申请日：2019-09-16

Applicant: QUALCOMM Incorporated

Inventor： Karl Georg Hampel ,  Navid Abedini ,  Muhammad Nazmul Islam ,  Jianghong Luo ,  Junyi Li ,  Tao Luo ,  Hong Cheng

IPC: H04W24/04 ,  H04W24/10

Abstract: A network management function of a relay network may identify relay node support of multi-mobile terminal (MT) operation, and may coordinate configuration of multiple backhaul links supported by the relay node via the multi-MT functionality of the relay node. In some cases, a relay node may transmit MT capabilities to the management function over a first established backhaul link, and the management function may configure a second backhaul link using a second MT function of the relay node. In other cases, the relay node may autonomously establish multi-MT connectivity based on preconfigured parent-selection policies, and the network management function may identify the relay node is dual-connected to the network management function. In either case, the network management function may configure backhaul routes (e.g., backhaul links) and resource configuration across the redundant topology.