公开(公告)号：US20190239240A1

公开(公告)日：2019-08-01

申请号：US16383502

申请日：2019-04-12

Applicant: QUALCOMM Incorporated

Inventor： Karl Georg Hampel ,  Junyi Li ,  Sundar Subramanian ,  Muhammad Nazmul Islam ,  Navid Abedini

IPC: H04W72/12 ,  H04W72/04

CPC classification number: H04W72/12 ,  H04W72/04 ,  H04W72/1278 ,  H04W92/20

Abstract: Methods, systems, and devices for wireless communication are described. In particular, a backhaul network that may be established between access nodes and/or base stations is shown and described. To support communications via the backhaul network, a synchronized frame structure and unique network topologies may be established. Resources may be allocated to different wireless communication links based on the synchronized frame structure. Occupancy/availability indications are shown and described, which enable the local redistribution of resources to account for variations in signal quality and/or variations in traffic experienced by the backhaul network.

公开(公告)号：US10356789B2

公开(公告)日：2019-07-16

申请号：US15663542

申请日：2017-07-28

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Juergen Cezanne ,  Sundar Subramanian ,  Ashwin Sampath ,  Junyi Li

IPC: H04W72/04 ,  H04B7/06 ,  H04W72/08 ,  H04B7/0456 ,  H04B7/08

Abstract: Methods, systems, and devices are described for wireless communication at a user equipment (UE). A wireless communications system may improve UE discovery latency by dynamically selecting and switching beam forming codebooks at the millimeter wave base station and the wireless device. Selecting an optimal beam forming codebook may allow the wireless communication system to improve link margins between the base station without compromising resources. In some examples, a wireless device may determine whether the received signals from the millimeter wave base station satisfy established signal to noise (SNR) thresholds, and select an optimal beam codebook to establish communication. Additionally or alternately, the wireless device may further signal the selected beam codebook to the millimeter wave base station and direct the millimeter wave base station to adjust its codebook based on the selection.

公开(公告)号：US20190159155A1

公开(公告)日：2019-05-23

申请号：US16191677

申请日：2018-11-15

Applicant: QUALCOMM Incorporated

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

IPC: H04W56/00 ,  H04J3/06 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques provide for determining to not transmit a portion of a second signal that overlaps in time with a first signal. A user equipment (UE) may identify a first signal to be communicated during a first time duration using a first beam pair link (BPL) and identify a second signal that is scheduled to be communicated during a second time duration using a second BPL. The UE may identify a misalignment between timing advance values for the BPLs, the misalignment causing an overlap in time between the first signal scheduled during the first time duration and the second signal scheduled during the second time duration. The UE may determine whether to drop part of the second signal and communicate the first signal and a remaining portion of the second signal based at least in part on the determining.

公开(公告)号：US20190158162A1

公开(公告)日：2019-05-23

申请号：US16189503

申请日：2018-11-13

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/06 ,  H04B7/08 ,  H04W64/00

CPC classification number: H04B7/0617 ,  H04B7/0639 ,  H04B7/0682 ,  H04B7/0834 ,  H04B7/088 ,  H04W64/003

Abstract: Methods, systems, and devices for updating beam-based communications are described. A base station may configure a user equipment (UE) with a set of beam management configurations, which may be used to modify (e.g., dynamically or periodically) beam-based communications. For example, the base station may indicate a beam configuration for utilization by the UE and the UE may switch to the indicated beam configuration or update a currently used beam configuration based on the indication. In another example, a set of beam configurations may be sequentially ordered, and the base station may indicate to the UE to use the next beam configuration in the sequence of beam configurations. The update to the beam configuration may be triggered based on a distance change (e.g., UE and base station getting closer or farther apart) or a reference signal measurement between the UE and the base station, among other factors.

公开(公告)号：US10285147B2

公开(公告)日：2019-05-07

申请号：US15934784

申请日：2018-03-23

Applicant: QUALCOMM Incorporated

Inventor： Navid Abedini ,  Hung Ly ,  Tao Luo ,  Bilal Sadiq ,  Muhammad Nazmul Islam ,  Sundar Subramanian

IPC: H04W56/00 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communication are described that provide for synchronization signal (SS) blocks in which synchronization signals and broadcast channel transmissions may be transmitted. Broadcast channel transmissions may be demodulated using SS transmissions, reference signal transmissions, or combinations thereof. Broadcast channel transmissions may be transmitted in a subset of SS block time resources, and synchronization signals may be transmitted in another subset of SS block time resources. Reference signals may be transmitted using tones within the broadcast channel time resources, and may be transmitted at a higher density for portions of the broadcast channel transmission bandwidth that are outside of the SS transmission bandwidth. Waveforms for reference signal transmissions, and information provided by reference signal transmissions may be provided.

公开(公告)号：US20190053321A1

公开(公告)日：2019-02-14

申请号：US16058706

申请日：2018-08-08

Applicant: QUALCOMM Incorporated

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

IPC: H04W76/28 ,  H04L29/08 ,  H04W72/04 ,  H04W72/08 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communication are described. A base station may initiate a beam management procedure, including reference signal transmission to a user equipment (UE) and receive beam training. A base station may configure a UE to monitor a set of beams for reference signals. Based on the received reference signals, the UE may optionally select one or more transmit beams for wakeup signal reception, and may transmit an indication of the selected beams to the base station. The base station may transmit a wakeup signal over the originally configured or the UE-selected transmit beams to initiate wake-up procedure at the UE. The base station and UE may subsequently perform a refined beam management procedure, providing a refined reference signal transmission from the base station. Based on the received transmission, the UE may select a refined beam for downlink transmissions.

公开(公告)号：US20190053196A1

公开(公告)日：2019-02-14

申请号：US16031758

申请日：2018-07-10

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04 ,  H04W16/28 ,  H04W4/02

Abstract: Methods, systems, and devices for delivering system information (SI) in a wireless communications system are described. Approaches described herein include determining different sets of SI corresponding to different sets of devices that might use the SI, and using directional transmissions to transmit the different sets of SI in different directions, so as to only transmit in a given direction SI that may be useful for devices in that direction. Also described herein are approaches for dividing a set of SI into different portions, and transmitting one portion via one or more reference signals and another portion less frequently via a scheduled data channel.

公开(公告)号：US10181891B2

公开(公告)日：2019-01-15

申请号：US15488403

申请日：2017-04-14

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Bilal Sadiq ,  Tao Luo ,  Sundar Subramanian ,  Junyi Li

IPC: H04B7/08 ,  H01Q1/24 ,  H04B7/0404 ,  H04B7/0417 ,  H04B7/06 ,  H04W16/28 ,  H04W28/02 ,  H04W40/24

Abstract: A UE may receive a beam modification command that indicates a set of transmit beam indexes corresponding to a set of transmit beams of a base station, and each transmit beam index of the set of transmit beam indexes may indicate at least a transmit direction for transmitting a transmit beam by the base station. The UE may determine a set of receive beam indexes corresponding to receive beams of the UE based on the set of transmit beam indexes, and each receive beam index of the set of receive beam indexes may indicate at least a receive direction for receiving a receive beam by the UE. The UE may receive, from the base station, a signal through at least one receive beam corresponding to at least one receive beam index included in the set of receive beam indexes.

公开(公告)号：US20190014569A1

公开(公告)日：2019-01-10

申请号：US16007772

申请日：2018-06-13

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04 ,  H04W76/10 ,  H04W16/28

Abstract: Backhaul resources may be allocated to different wireless communication links between different base stations, and local redistribution of resources among base stations may be utilized to account for variations in signal quality and/or variations in traffic experienced by different nodes of the backhaul network. A first access node function (ANF) may determine a need for additional backhaul resources, and may transmit a request message to one or more user equipment functions (UEFs) for additional backhaul resources. A UEF that receives the request message may forward the request to an associated second ANF. The second ANF, if it has backhaul resources available that the first ANF can use, may send a response to the first ANF, via the associated UEF, and the first ANF may use the additional resources that were originally allocated to the second ANF.

公开(公告)号：US20180368149A1

公开(公告)日：2018-12-20

申请号：US15997157

申请日：2018-06-04

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Miguel Rodrigo Castellanos Llorca ,  Jung Ryu ,  Sundar Subramanian ,  Juergen Cezanne ,  Junyi Li

IPC: H04W72/08 ,  H04B7/0452 ,  H04B7/04 ,  H04B7/0408 ,  H04W72/12 ,  H04W72/14

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may identify a set of transmit beams having a channel characteristic above a first threshold. The set of transmit beams may be an ordered list of transmit beams based on the associated channel characteristic of each transmit beam. The UE may determine, based at least in part on the set of transmit beams, a cross-correlation metric between a set of receive beams. The set of receive beams may include an ordered list of receive beam configurations with channel characteristic above a second threshold. The UE may transmit a message that identifies the cross-correlation metric between beams in the set of receive beams.