公开(公告)号：US20210337591A1

公开(公告)日：2021-10-28

申请号：US17368047

申请日：2021-07-06

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul ISLAM ,  Navid ABEDINI ,  Junyi LI ,  Karl Georg HAMPEL ,  Jianghong LUO

IPC: H04W74/08 ,  H04W56/00 ,  H04W72/04 ,  H04W72/12 ,  H04W74/02

Abstract: Certain aspects of the present disclosure provide techniques for avoiding conflicts of resources assigned to one or more signals with resources assigned to Random Access Channel (RACH) in an Integrated Access and Backhaul (TAB) network. Configurations for first and second sets of signals are obtained for a first and second base station (BS) respectively. Based on the obtained configurations, a RACH configuration is determined for the first BS for performing a RACH procedure with the second BS over a wireless backhaul link, wherein one or more Physical RACH (PRACH) occasions according to the determined RACH configuration do not conflict with resources used for at least one of the first or the second set of signals. The determined RACH configuration is communicated to the second BS, wherein the second BS transmits a RACH signal to the first BS based on the determined RACH configuration.

公开(公告)号：US20210321420A1

公开(公告)日：2021-10-14

申请号：US17301536

申请日：2021-04-06

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul ISLAM ,  Valentin Alexandru GHEORGHIU ,  Awlok Singh JOSAN ,  Junyi LI ,  Changhwan PARK

IPC: H04W72/08 ,  H04W72/04 ,  H04W72/10 ,  H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a scaling factor for a beam failure detection (BFD) evaluation period associated with a secondary cell group of a set of secondary cell groups. The scaling factor may be determined based at least in part on a number of secondary cell groups included in the set of secondary cell groups. In some aspects, the UE may perform a BFD measurement, associated with the secondary cell group, based at least in part on the scaling factor for the BFD evaluation period. Numerous other aspects are provided.

公开(公告)号：US20210105824A1

公开(公告)日：2021-04-08

申请号：US16948956

申请日：2020-10-07

Applicant: QUALCOMM Incorporated

Inventor： Jing LEI ,  Muhammad Nazmul ISLAM ,  Linhai HE

IPC: H04W74/08 ,  H04W76/27 ,  H04L1/18 ,  H04W74/00 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station (BS) may group and selectively multiplex a plurality of random access channel responses (RARs) and radio resource control (RRC) messages in a message B (msgB) communication, together with supplementary scheduling information for other RARs to be mapped to a different msgB communication. The BS may transmit the msgB communication to one or more user equipments. Numerous other aspects are provided.

公开(公告)号：US20210076452A1

公开(公告)日：2021-03-11

申请号：US17098696

申请日：2020-11-16

Applicant: QUALCOMM Incorporated

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

IPC: H04W76/28 ,  H04B7/06 ,  H04B7/08 ,  H04L5/00 ,  H04L29/08 ,  H04W72/04 ,  H04W72/08

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：US20210044345A1

公开(公告)日：2021-02-11

申请号：US17082158

申请日：2020-10-28

Applicant: QUALCOMM Incorporated

Inventor： Sony AKKARAKARAN ,  Tao LUO ,  Muhammad Nazmul ISLAM ,  Bilal SADIQ

IPC: H04B7/06 ,  H04B7/08 ,  H04L5/00 ,  H04L29/12 ,  H04W72/04 ,  H04W74/08

Abstract: In a mmW network, a UE and a base station may establish a link using a RACH procedure. A base station may transmit, in a beamformed signal, a message to a UE during a RACH procedure. The message to the UE may include a value indicating a request for beam information. The base station may receive a message from the UE during the RACH procedure that includes a beam information report comprising the beam information.

公开(公告)号：US20200274602A1

公开(公告)日：2020-08-27

申请号：US15930901

申请日：2020-05-13

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 user equipment (UE) may communicate with a base station through a first active beam, the first active beam comprising a serving beam. The UE may receive a first reference signal and a second reference signal associated with beam tracking from the base station, where the first reference signal is received through a first beam of a first plurality of beams and the second reference signal is subsequently received through a second beam of a second plurality of beams, and where the beam tracking includes identifying a new beam for communication between the UE and the base station. The UE may communicate with the base station through a second active beam based on at least one of the first reference signal or the second reference signal associated with the beam tracking, the second active beam comprising the new beam.

公开(公告)号：US20200229117A1

公开(公告)日：2020-07-16

申请号：US16742205

申请日：2020-01-14

Applicant: QUALCOMM Incorporated

Inventor： Navid ABEDINI ,  Juergen CEZANNE ,  Muhammad Nazmul ISLAM ,  Jianghong LUO ,  Luca BLESSENT ,  Karl Georg HAMPEL ,  Tao LUO ,  Junyi LI

IPC: H04W56/00 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless node may determine a default periodicity for repetition of a reference signal period, and may monitor for one or more reference signals in the reference signal period using a plurality of configurations for a plurality of intervals of the reference signal period. Each interval may be shorter than the default periodicity. Numerous other aspects are provided.

公开(公告)号：US20200068621A1

公开(公告)日：2020-02-27

申请号：US16659420

申请日：2019-10-21

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 ,  H04W74/00

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：US20200037310A1

公开(公告)日：2020-01-30

申请号：US16533533

申请日：2019-08-06

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul ISLAM ,  Sundar SUBRAMANIAN ,  Ashwin SAMPATH ,  Jeurgen CEZANNE ,  Bilal SADIQ ,  Junyi LI ,  Tao LUO

IPC: H04W72/04 ,  H04B7/06 ,  H04B7/08 ,  H04L1/00 ,  H04L5/00

Abstract: Various aspects of the disclosure relate to communicating uplink control information. As one example, a user equipment may send uplink control information to a base station. In some aspects, the number of symbols used to communicate the uplink control information may be based on a link gain associated with the UE and/or based on a payload size of the uplink control information. As another example, the user equipment may send channel information for a number of beams to the base station. In some aspects, the number of beams may be based on the type of channel that is used to send the uplink control information.

公开(公告)号：US20200008188A1

公开(公告)日：2020-01-02

申请号：US16395080

申请日：2019-04-25

Applicant: QUALCOMM Incorporated

Inventor： Wooseok NAM ,  Muhammad Nazmul ISLAM ,  Tao LUO ,  Junyi LI ,  Juergen CEZANNE

IPC: H04W72/04 ,  H04W74/00 ,  H04W74/02

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may transmit a first physical random access channel (PRACH) transmission that includes a first random access (RA) preamble to a base station. The apparatus may determine whether to transmit to the base station a second PRACH transmission that is concurrent with the first PRACH transmission in time, wherein the second PRACH includes a second RA preamble. The apparatus may transmit, to the base station, the second PRACH transmission that includes the second RA preamble when the second PRACH transmission is determined to be transmitted. The first RA preamble and the second RA preamble may be different, and the first RA preamble and the second RA preamble may be concurrently transmitted in a same PRACH occasion or in different PRACH occasions that overlap in time.