公开(公告)号：US20200154336A1

公开(公告)日：2020-05-14

申请号：US16676847

申请日：2019-11-07

Applicant: QUALCOMM Incorporated

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

IPC: H04W40/12 ,  H04W28/02 ,  H04W28/08 ,  H04W24/10 ,  H04B17/336 ,  H04B17/318 ,  H04W80/02 ,  H04W88/14

Abstract: Methods, systems, and devices for wireless communications are described that support resource utilization based event triggering. A wireless node in a wireless communications system may establish a connection with a core network via a path that includes one or more relay nodes. The wireless node may determine that a network load associated with one or more paths between the wireless node and the core network has changed, or that a difference between two or more network loads of different paths has changed. Based on such a determination, the wireless node may transmit a report to the network. In some cases, the network may receive the report from the wireless node, and may initiate a path change based on the report.

公开(公告)号：US10651899B2

公开(公告)日：2020-05-12

申请号：US15488399

申请日：2017-04-14

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/00 ,  H04B7/0417 ,  H04B7/08 ,  H04B7/06 ,  H04B7/0452 ,  H01Q1/24 ,  H04B7/0404 ,  H04B7/0426 ,  H04W16/28 ,  H04W28/02 ,  H04W40/08 ,  H04W52/14 ,  H04W74/08

Abstract: A UE may select a first beam for communication with a base station. The UE may attempt, through the selected first beam, at least one RACH procedure with the base station. The UE may determine that the at least one RACH procedure failed with the base station. The UE may send, after a successful RACH procedure with the base station, information indicating that the at least one RACH procedure failed. In an aspect, the UE may select a new beam for communication with the base station after the determination that the at least one RACH procedure failed, and at least a portion of the successful RACH procedure may be performed through the selected new beam.

公开(公告)号：US10609657B2

公开(公告)日：2020-03-31

申请号：US16054058

申请日：2018-08-03

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Bilal Sadiq ,  Navid Abedini ,  Tao Luo

IPC: H04W52/36 ,  H04L5/00 ,  H04W74/08 ,  H04W52/14 ,  H04W52/50 ,  H04B7/06 ,  H04W52/32 ,  H04W52/40

Abstract: Beam specific power ramping counters may be used to adjust uplink transmit power. For example, a user equipment (UE) may use counters for beam specific power control of Random Access Channel (RACH) Message1 transmissions. A UE may transmit a RACH message1 on a beam specific resource and increment a counter corresponding to a gNB downlink beam. Power adjustments may be made on subsequent re-transmissions of the RACH message1 according to a power control policy. The power control policy may call for applying a power ramping function based on the value(s) of one or more of the counters.

公开(公告)号：US20200084819A1

公开(公告)日：2020-03-12

申请号：US16562320

申请日：2019-09-05

Applicant: QUALCOMM Incorporated

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

IPC: H04W76/18 ,  H04B7/14 ,  H04W76/15 ,  H04W76/38 ,  H04W72/12 ,  H04L12/24

Abstract: A relay node supporting mobile terminal (MT) functionality and distributed unit (DU) functionality may receive a timing advance (TA) value for uplink synchronization associated with a timing alignment timer from a parent node. In some cases, the timing alignment timer may expire prior to the relay node receiving a next TA value. Upon expiration of the timing alignment timer, the relay node may initiate a second timer (e.g., a transition timer) associated with the transitioning of a DU entity of the relay node to a DU transition state. The DU transition state is associated with certain DU behavior for serving child nodes while the transition timer is active. Configuration of the DU transition state may be identified by the relay node, or received from a parent node. In cases where the transition timer expires prior to receiving a next TA value, the DU may declare a loss of uplink synchronization.

公开(公告)号：US20200053626A1

公开(公告)日：2020-02-13

申请号：US16537313

申请日：2019-08-09

Applicant: QUALCOMM Incorporated

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

IPC: H04W40/22 ,  H04L12/733 ,  H04W40/12 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described that provide for hop-count indication in an integrated access and backhaul (IAB) network. An IAB-node may adopt and indicate multiple values for hop-count. The hop-count may be conveyed by a number of different reference signals and channels. A resource pattern and/or a slot pattern may also be associated with the hop-count to simply signaling. By associating the patterns with the hop-count, an IAB-node may be able to infer the resource pattern used by another IAB-node.

公开(公告)号：US10554284B2

公开(公告)日：2020-02-04

申请号：US15595328

申请日：2017-05-15

Applicant: QUALCOMM Incorporated

Inventor： Bilal Sadiq ,  Ashwin Sampath ,  Tao Luo ,  Juergen Cezanne ,  Sundar Subramanian ,  Muhammad Nazmul Islam ,  Alexei Yurievitch Gorokhov ,  Shrenik Patel ,  Junyi Li

IPC: H04B7/06 ,  H04W72/04 ,  H04B7/08 ,  H04W76/10 ,  H04B7/0408

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may be communicating with a base station via beamformed transmissions on an active beam. The UE may receive from the base station refined reference signals (RRSs) that include an active beam RRS corresponding to the active beam. The UE may identify that the active beam RRS corresponds to the active beam and perform a beam state measurement on the active beam RRS. The UE may refine the active beam based at least in part on the beam state information of the active beam RRS.

公开(公告)号：US10548182B2

公开(公告)日：2020-01-28

申请号：US16104656

申请日：2018-08-17

Applicant: QUALCOMM Incorporated

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

IPC: G08C17/00 ,  H04W76/28 ,  H04W72/04 ,  H04W72/14 ,  H04W56/00 ,  H04W52/02

Abstract: Methods, systems, and devices for wireless communication are described. A base station may transmit, to a user equipment (UE) operating in a discontinuous reception mode, a wakeup signal indicating whether data is available to be transmitted to the UE, the wakeup signal transmitted using a first set of transmit beams, which may be selected from a periodic beam management procedure, in accordance with a beam sweeping configuration. The base station may receive, from the UE and based at least in part on the wakeup signal, a response signal. The base station may perform, based at least in part on the response signal, further beam update procedures to identify a second set of transmit beams for future transmissions of the wakeup signal and/or for transmission of physical downlink control channel (PDCCH) to the UE.

公开(公告)号：US10536313B2

公开(公告)日：2020-01-14

申请号：US16028308

申请日：2018-07-05

Applicant: QUALCOMM Incorporated

Inventor： Navid Abedini ,  Muhammad Nazmul Islam ,  Bilal Sadiq ,  Peter Gaal ,  Haitong Sun

IPC: H04L27/26 ,  H04J11/00 ,  H04L5/00 ,  H04W56/00 ,  H04W72/00 ,  H04W72/04

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for generating and communicating reference signals. Certain aspects provide a method for communicating reference signals. The method includes selecting a reference sequence of a plurality of reference sequences to transmit in a cell in a synchronization signal block (SSB) based at least on a logical value, wherein the logical value is determined based on a SSB index indicating a location of the SSB within a set of resources of a plurality of sets of resources and at least one of a cell ID of the cell, a set index indicating a location of the set of resources within the plurality of sets of resources, or a second value based on system information corresponding to the cell; and transmitting the selected reference sequence in the SSB.

公开(公告)号：US10531492B2

公开(公告)日：2020-01-07

申请号：US15421213

申请日：2017-01-31

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Tao Luo ,  Juergen Cezanne ,  Sundar Subramanian ,  Junyi Li ,  Karl Georg Hampel ,  Bilal Sadiq

IPC: H04W74/08 ,  H04W72/00 ,  H04W88/02

Abstract: In millimeter wave systems, user equipment may not be able to receive RACH parameters through a PDCCH when the information is transmitted with an omni-directional beam. In an aspect of the disclosure, an apparatus, such as a base station, may determine the RACH parameters and transmit a subset of the RACH parameters via a PBCH. The user equipment may receive the RACH parameter subset and initiate a RACH procedure.

公开(公告)号：US10531384B2

公开(公告)日：2020-01-07

申请号：US15371795

申请日：2016-12-07

Applicant: QUALCOMM Incorporated

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

IPC: H04W52/02 ,  H04W72/04 ,  H04W74/08 ,  H04W56/00 ,  H04W74/00 ,  H04W24/08

Abstract: A wireless device configured for discontinuous reception (DRX) may and operating in a system that uses directional beamforming may identify a random access time period after awaking from a DRX sleep mode. The device may then transmit a scheduling request during the random access time period. In some cases, the device may transmit the scheduling request using frequency resources also associated with random access transmissions. In other cases, the device may utilize resources that are not associated with random access. The determination of which frequency resources are used may depend on the length of the DRX. That is, if a device has been in a sleep mode for a long time, it may use random access frequency resources that are associated with a more robust transmission configuration.