公开(公告)号：WO2020041338A1

公开(公告)日：2020-02-27

申请号：PCT/US2019/047301

申请日：2019-08-20

Applicant: QUALCOMM INCORPORATED

Inventor： JOHN WILSON, Makesh Pravin ,  LUO, Tao ,  ISLAM, Muhammad Nazmul ,  LY, Hung Dinh ,  LEE, Heechoon ,  ANG, Peter Pui Lok

IPC: H04W74/08

Abstract: Methods, systems, and devices for wireless communications are described that provide for selection of different sets of transmission beams by a user equipment (UE) for establishing beamformed communications with a base station. Each transmission beam of a first set of transmission beams may have corresponding uplink random access channel (RACH) resources. A UE may monitor for transmission beams from a base station and select a first transmission beam of the first set for communications with the base station. As part of a connection establishment, the base station may provide configuration information that indicates a second set of transmission beams that includes each transmission beam of the first set of transmission beams and at least an additional transmission beam. In some cases, the additional transmission beam may be mapped to a first RACH resource that also corresponds to a first transmission beam of the first set of transmission beams.

公开(公告)号：WO2020041089A1

公开(公告)日：2020-02-27

申请号：PCT/US2019/046664

申请日：2019-08-15

Applicant: QUALCOMM INCORPORATED

Inventor： ISLAM, Muhammad Nazmul ,  LUO, Tao ,  ABEDINI, Navid ,  LI, Junyi ,  LUO, Jianghong

IPC: H04W56/00

Abstract: Aspects of the disclosure generally relate to wireless communication. In some aspects, a wireless node may identify a first set of synchronization signal blocks (SSBs), within a synchronization signal (SS) burst set, that are used to indicate random access channel (RACH) occasions for a first wireless link type, the SS burst set including a second set of SSBs used to indicate RACH occasions for a second wireless link type; and transmit a RACH message in a RACH occasion corresponding to an SSB included in the first set of SSBs. In some aspects, a wireless node may configure an SS burst set to include a first set of SSBs to be used to indicate RACH occasions for a first wireless link type, and a second set of SSBs to be used to indicate RACH occasions for a second wireless link type; and transmit the SS burst set. Other aspects are provided.

公开(公告)号：WO2020014152A1

公开(公告)日：2020-01-16

申请号：PCT/US2019/040871

申请日：2019-07-08

Applicant: QUALCOMM INCORPORATED

Inventor： ISLAM, Muhammad Nazmul ,  ABEDINI, Navid ,  LUO, Tao ,  LUO, Jianghong ,  LI, Junyi ,  BLESSENT, Luca

IPC: H04W74/08

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may identify a scaling factor associated with determining a periodicity of backhaul physical random access channel (PRACH) resources. The wireless communication device may determine, based at least in part on the scaling factor, the periodicity of the backhaul PRACH resources. The periodicity of the backhaul PRACH resources may be extended as compared to a periodicity of access PRACH resources. Numerous other aspects are provided.

公开(公告)号：WO2020005410A1

公开(公告)日：2020-01-02

申请号：PCT/US2019/033166

申请日：2019-05-20

Applicant: QUALCOMM INCORPORATED

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

IPC: H04W74/08

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 (IAB) 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：WO2019246425A1

公开(公告)日：2019-12-26

申请号：PCT/US2019/038288

申请日：2019-06-20

Applicant: QUALCOMM INCORPORATED

Inventor： ISLAM, Muhammad Nazmul ,  LUO, Tao ,  OZTURK, Ozcan ,  LEE, Heechoon ,  HANDE, Prashanth

IPC: H04W68/02 ,  H04B7/06 ,  H04B7/08

Abstract: Methods, systems, and devices for wireless communications are described in which a paging configuration may be provided by a base station that indicates one or more occasions during which a user equipment (UE) is to monitor for pages. A location of the paging occasion may be based at least in part on at least one synchronization signal block (SSB) transmitted by the base station. A mapping between a paging occasion index and the location of the paging occasion is indicated in the paging configuration. Paging windows may be configured during downlink slots that contain an SSB transmission. Paging transmissions may use beamforming parameters that are the same as SSB transmission beamforming parameters.

公开(公告)号：WO2019236195A1

公开(公告)日：2019-12-12

申请号：PCT/US2019/026829

申请日：2019-04-10

Applicant: QUALCOMM INCORPORATED

Inventor： SADIQ, Bilal ,  BAI, Tianyang ,  RAGHAVAN, Vasanthan ,  CEZANNE, Juergen ,  VITTHALADEVUNI, Pavan Kumar ,  MANOLAKOS, Alexandros ,  SORIAGA, Joseph Binamira ,  LI, Junyi ,  BHUSHAN, Naga ,  ISLAM, Muhammad Nazmul

IPC: H04B7/08 ,  G01S1/20 ,  H04W64/00 ,  G01S5/02 ,  H04B7/06

Abstract: Disclosed are techniques for receive beam selection for measuring a reference radio frequency (RF) signal. In an aspect, a first node determines a type of measurement to be performed on the reference RF signal, selects a receive beam based on the type of measurement to be performed on the reference RF signal, generates the selected receive beam, receives, from a second node, using the generated receive beam, the reference RF signal transmitted on a wireless channel, and performs one or more measurements on the received reference RF signal according to the type of the measurement to be performed.

公开(公告)号：WO2019226276A1

公开(公告)日：2019-11-28

申请号：PCT/US2019/029314

申请日：2019-04-26

Applicant: QUALCOMM INCORPORATED

Inventor： SADIQ, Bilal ,  BAI, Tianyang ,  RAGHAVAN, Vasanthan ,  ISLAM, Muhammad Nazmul

IPC: H04B7/06 ,  G01S1/08 ,  H04W64/00 ,  G01S5/02 ,  H04W4/02

Abstract: In an embodiment, a first node receives, from a second node, a plurality of beams. The first node determines a time of arrival of each beam of the plurality of beams. The first node identifies, from the plurality of beams, one or more first beams of interest for a positioning procedure based on the times of arrival of the plurality of beams. The first node determines a first reference timing based on the time of arrival for a given beam among the identified one or more first beams of interest. The first node sends, to the second node, a positioning beacon in accordance with the first reference timing.

公开(公告)号：WO2019199597A1

公开(公告)日：2019-10-17

申请号：PCT/US2019/025974

申请日：2019-04-05

Applicant: QUALCOMM INCORPORATED

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

IPC: H04W68/00 ,  H04W72/04 ,  H04W88/04

Abstract: Methods, systems, and devices for wireless communications are described that provide a mechanism for a wireless node to identify resources that are controlled by a different wireless node in the wireless backhaul communications network and in some cases autonomously transmit certain transmissions using resources of the different wireless node. A first wireless node may receive signaling that indicates whether such transmissions may be autonomously transmitted via configuration information or a flag provided in signaling to the first wireless node. The first wireless node may in some cases determine that autonomous transmissions are enabled based on a type of communication or node that provides the information for the transmissions from the first wireless node. In some cases, a priority associated with the transmissions may be used to determine whether autonomous transmissions are enabled.

公开(公告)号：WO2019161119A1

公开(公告)日：2019-08-22

申请号：PCT/US2019/018093

申请日：2019-02-14

Applicant: QUALCOMM INCORPORATED

Inventor： ISLAM, Muhammad Nazmul ,  SADIQ, Bilal ,  AKKARAKARAN, Sony ,  HE, Linhai ,  SUBRAMANIAN, Sundar ,  CEZANNE, Juergen

IPC: H04W74/08

Abstract: An apparatus may determine whether to indicate a beam failure recovery request to a base station using a contention-free RACH procedure with a dedicated preamble when the UE is timing unsynchronized with the base station. The apparatus may perform, when the apparatus is timing unsynchronized with the base station, the contention-free RACH procedure with the dedicated preamble to indicate the beam failure recovery request when the beam failure recovery request is determined to be indicated to the base station using the contention-free RACH procedure with the dedicated preamble. The apparatus may perform, when the apparatus is timing unsynchronized with the base station, a contention-based RACH procedure to indicate the beam failure recovery request when the beam failure recovery request is undetermined to be sent to the base station using the contention-free RACH procedure with the dedicated preamble.

公开(公告)号：WO2019152141A1

公开(公告)日：2019-08-08

申请号：PCT/US2019/012687

申请日：2019-01-08

Applicant: QUALCOMM INCORPORATED

Inventor： ISLAM, Muhammad Nazmul ,  LUO, Tao ,  JOHN WILSON, Makesh Pravin

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

Abstract: Methods, systems, and devices for wireless communications are described. In some wireless communications systems, a base station may transmit downlink control information (DCI) messages to a user equipment (UE). A DCI message may be transmitted using a particular DCI format based on the type of control information included in the DCI message. In some cases, different types of control information may be transmitted using the same DCI format. In such cases, one or more bit fields in a DCI format may be useful to a UE for one type of control information but may not be useful to a UE for another type of control information. As described herein, in order to limit the overhead associated with control information transmissions, a base station may support techniques for utilizing these bit fields in a DCI format to transmit information corresponding to the type of control information being transmitted.