公开(公告)号：US20210336673A1

公开(公告)日：2021-10-28

申请号：US17210402

申请日：2021-03-23

Applicant: QUALCOMM Incorporated

Inventor： Mahmoud TAHERZADEH BOROUJENI ,  Tao LUO ,  Jelena DAMNJANOVIC ,  Juan MONTOJO ,  Iyab Issam SAKHNINI ,  Peter GAAL ,  Xiaoxia ZHANG ,  Jing SUN ,  Qiang WU

IPC: H04B7/06 ,  H04W72/04 ,  H04W72/08 ,  H04W24/08

Abstract: A method of wireless communication by a UE (user equipment) includes receiving group-common downlink control information (DCI) indicating coverage-enhancements including channel state information (CSI) report settings for a group of UEs and/or PDCCH repetition. The method also includes reporting CSI in accordance with the coverage-enhanced CSI report settings, which may include report repetition. A method of wireless communication by a base station includes transmitting group-common downlink control information (DCI) indicating coverage-enhanced channel state information (CSI) report settings and/or PDCCH repetition for a group of UEs. The method also includes receiving CSI reports from the group of UEs in accordance with the group-common DCI.

公开(公告)号：US20210328843A1

公开(公告)日：2021-10-21

申请号：US17214027

申请日：2021-03-26

Applicant: QUALCOMM Incorporated

Inventor： Mehmet Izzet GURELLI ,  Qiang WU ,  Jing SUN ,  Xiaoxia ZHANG ,  Tao LUO ,  Iyab Issam SAKHNINI ,  Jun MA ,  Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL ,  Juan MONTOJO ,  Peter GAAL

IPC: H04L27/26

Abstract: Orthogonal frequency-division multiplexing (OFDM) numerologies that maintain symbol boundary alignment while distributing excess cyclic prefixes (CPs) among OFDM symbols. Communication is established using a first sub-carrier spacing (SCS) and a first OFDM numerology, such as an exemplary numerology that distributes excess CP duration among a set of symbols that occupy a time interval within or equal to a corresponding time interval of a symbol of a second OFDM numerology with a second lower SCS. The first SCS may be, e.g., 960 kHz. The second SCS may be, e.g., 120 kHz. Another exemplary OFDM numerology described herein distributes the excess CP as prefix and postfix portions to one of the symbols, such as the first symbol of a set. Communication then proceeds using the first OFDM numerology at the first SCS and, in illustrative examples, using the second OFDM numerology at the second SCS or other OFDM numerologies at other SCSs.

公开(公告)号：US20210298063A1

公开(公告)日：2021-09-23

申请号：US17198110

申请日：2021-03-10

Applicant: QUALCOMM Incorporated

Inventor： Jelena DAMNJANOVIC ,  Tao LUO ,  Juan MONTOJO ,  Sony AKKARAKARAN ,  Aleksandar DAMNJANOVIC ,  Olufunmilola Omolade AWONIYI-OTERI

IPC: H04W72/14 ,  H04W88/04 ,  H04W72/02 ,  H04W76/14 ,  H04W80/02 ,  H04W92/18

Abstract: Aspects of the disclosure relate to wireless communications systems including the use of a joint grant generated in and transmitted by a base station to a user equipment (UE) over a first communication link for establishing a sidelink (SL) with a relay UE. The joint grant provides a first resource assignment for establishing the SL between the UE and relay UE, as well as a second resource assignment that is transmitted to the relay UE for establishing an uplink from the relay UE to the base station.

公开(公告)号：US20210266978A1

公开(公告)日：2021-08-26

申请号：US17248334

申请日：2021-01-20

Applicant: QUALCOMM Incorporated

Inventor： Iyab Issam SAKHNINI ,  Jing SUN ,  Tao LUO ,  Zhifei FAN ,  Arumugam CHENDAMARAI KANNAN ,  Xiaoxia ZHANG ,  Juan MONTOJO

IPC: H04W74/08 ,  H04W72/04 ,  H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may transmit, and a user equipment (UE) may receive, initial timing advance information in a msg2 communication of a four-step random access channel procedure based at least in part on a subcarrier spacing in a cell associated with the base station. The UE may transmit, and the base station may receive, a msg3 communication with an initial timing advance that is based at least in part on the initial timing advance information. The base station may transmit, and the UE may receive, updated timing advance information resolving a timing advance wrap-around between the UE and the base station based at least in part on the base station detecting the msg3 communication. Numerous other aspects are provided.

公开(公告)号：US20210266975A1

公开(公告)日：2021-08-26

申请号：US17179290

申请日：2021-02-18

Applicant: QUALCOMM Incorporated

Inventor： Mahmoud TAHERZADEH BOROUJENI ,  Tao LUO ,  Peter GAAL ,  Juan MONTOJO

IPC: H04W74/08 ,  H04W16/28 ,  H04W72/12

Abstract: Aspects described herein relate to transmitting a first random access message in a random access procedure based on whether beam refinement is configured. In an aspect, it can be determined whether a base station uses beam refinement for receiving a first random access message in a two-step random access procedure. Based on whether the base station uses beam refinement, one or more parameters for transmitting the first random access message can be determined, and the first random access message can be transmitted to the base station and based on the one or more parameters.

公开(公告)号：US20210266974A1

公开(公告)日：2021-08-26

申请号：US17179139

申请日：2021-02-18

Applicant: QUALCOMM Incorporated

Inventor： Mahmoud TAHERZADEH BOROUJENI ,  Tao LUO ,  Juan MONTOJO ,  Peter GAAL ,  Yan ZHOU ,  Iyab Issam SAKHNINI ,  Jelena DAMNJANOVIC ,  Wooseok NAM

IPC: H04W74/08 ,  H04W74/00 ,  H04W16/28 ,  H04W56/00 ,  H04W24/10 ,  H04W24/08 ,  H04B17/318

Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for beam refinement via physical random access channel (PRACH) repetition. A method that may be performed by a network entity includes determining resources to monitor for a PRACH transmission sent from a user equipment (UE) as part of a random access channel (RACH) procedure, performing receive beam sweeping when receiving PRACH repetitions sent using the determined resources, using results of the receive beam sweeping to refine one or more beams and to select a refined beam of the refined one or more beams, and using the selected refined beam for at least one of receiving a subsequent message from the UE as part of the RACH procedure or sending a subsequent message to the UE as part of the RACH procedure.

公开(公告)号：US20210266973A1

公开(公告)日：2021-08-26

申请号：US17178852

申请日：2021-02-18

Applicant: QUALCOMM Incorporated

Inventor： Mahmoud TAHERZADEH BOROUJENI ,  Tao LUO ,  Peter GAAL ,  Juan MONTOJO

IPC: H04W74/08 ,  H04W72/04

Abstract: This disclosure provides methods, devices and systems for random access procedures and beam refinement for wireless communications. A base station may repeat a transmission of a random access message 2 to a user equipment (UE) on a plurality of physical downlink control channel (PDDCH) candidates to improve reception of the random access message 2 and provide for selection of a refined beam. The UE may receive the random access message 2 on the plurality of repeated PDCCH candidates during a random access response window. The UE may select an offset based on a strongest of the plurality of PDCCH candidates. The UE may transmit a random access message 3 on resources indicated by the random access message 2 that are time shifted by the offset. The base station may select a beam for transmitting a random access message 4 based on the offset.

公开(公告)号：US20210266952A1

公开(公告)日：2021-08-26

申请号：US17182934

申请日：2021-02-23

Applicant: QUALCOMM Incorporated

Inventor： Yan ZHOU ,  Tao LUO ,  Jelena DAMNJANOVIC ,  Iyab Issam SAKHNINI ,  Mahmoud TAHERZADEH BOROUJENI ,  Juan MONTOJO

IPC: H04W72/14 ,  H04L12/24 ,  H04L5/00 ,  H04L1/08

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive activation signaling for a configuration of a semi-persistent transmission procedure; activate the semi-persistent transmission procedure based at least in part on receiving the activation signaling; and deactivate the semi-persistent transmission procedure based at least in part on a deactivation time. In some aspects, the UE may activate the semi-persistent transmission procedure based at least in part on transmitting uplink feedback. Numerous other aspects are provided.

公开(公告)号：US20210258934A1

公开(公告)日：2021-08-19

申请号：US17248363

申请日：2021-01-21

Applicant: QUALCOMM Incorporated

Inventor： Iyab Issam SAKHNINI ,  Tao LUO ,  Wooseok NAM ,  Peter Pui Lok ANG ,  Juan MONTOJO ,  Olufunmilola Omolade AWONIYI-OTERI ,  Jelena DAMNJANOVIC ,  Linhai HE ,  Huilin XU

IPC: H04W72/04

Abstract: Methods and apparatuses described herein provide a physical downlink control channel (PDCCH) candidate hopping function that reduces collisions between PDCCH candidates, particularly between PDCCH candidates associated with reduced capability user equipment (UE). For example, the hopping function may be implemented as part of a PDCCH candidate to control channel element (CCE) function or may be applied separately from the PDCCH candidate to CCE function. The hopping function may reduce persistent collisions between PDCCH candidates by correlating the mapping behavior with a value that changes over time. Some techniques and apparatuses described herein provide signaling for configuration and activation/deactivation/modification of the hopping pattern. Thus, collisions between PDCCH candidates are reduced, thereby conserving computing resources and wireless communication resources. Furthermore, the reduction of collisions may improve performance of UEs with reduced PDCCH capabilities, such as reduced-capability UEs. Numerous other aspects are provided.

公开(公告)号：US20210258930A1

公开(公告)日：2021-08-19

申请号：US17177009

申请日：2021-02-16

Applicant: QUALCOMM Incorporated

Inventor： Wooseok NAM ,  Tao LUO ,  Juan MONTOJO ,  Peter Pui Lok ANG ,  Linhai HE

IPC: H04W72/04 ,  H04W68/02 ,  H04L5/00

Abstract: Certain aspects of the present disclosure relate to wireless communications, and more particularly, techniques for an enhanced paging procedure. A method that may be performed by a user equipment (UE) includes detecting, during a paging occasion (PO), at least one downlink control information (DCI) that indicates a paging message and additional downlink signals and using the additional downlink signals to enhance processing of the paging message.