公开(公告)号：US20220369384A1

公开(公告)日：2022-11-17

申请号：US17662838

申请日：2022-05-10

Applicant: QUALCOMM Incorporated

Inventor： Iyab Issam SAKHNINI ,  Tao LUO ,  Xiaoxia ZHANG ,  Jing SUN

IPC: H04W74/08 ,  H04W72/04 ,  H04L27/26

Abstract: A user equipment (UE) may transmit a first random access message to a base station in a first bandwidth part (BWP), switch from the first BWP to a second BWP, and start a timer following a time gap after transmission of the first random access message in the first BWP, the timer associated with a window of time for receiving a second random access message from the base station in the second BWP. The window of time may be a random access response (RAR) window or a contention resolution window that may extend until the expiration of the timer. The switch from the first BWP to the second BWP may be based on a subcarrier spacing (SCS) change from a first SCS to a second SCS.

公开(公告)号：US20220369099A1

公开(公告)日：2022-11-17

申请号：US17317623

申请日：2021-05-11

Applicant: QUALCOMM Incorporated

Inventor： Iyab Issam SAKHNINI ,  Tao LUO

IPC: H04W8/24 ,  H04W74/08 ,  H04W56/00 ,  H04W72/14 ,  H04W72/04

Abstract: Certain aspects of the present disclosure provide techniques for communicating via one or more subcarrier spacings in accordance with an indication of a subcarrier spacing capability. A method that may be performed by a user equipment (UE) includes transmitting, to a network entity, an indication of a subcarrier spacing capability of the UE associated with a frequency range and communicating with the network entity in accordance with the indication.

公开(公告)号：US20220360401A1

公开(公告)日：2022-11-10

申请号：US17316669

申请日：2021-05-10

Applicant: QUALCOMM Incorporated

Inventor： Morteza SOLTANI ,  Jun MA ,  Xiaoxia ZHANG ,  Iyab Issam SAKHNINI ,  Hemant SAGGAR

IPC: H04L5/00 ,  H04L5/22

Abstract: This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for flexible intra-symbol multiplexing of DMRS of different antenna ports for single carrier waveforms. A base station may transmit one or more DMRSs within a symbol and provide an intra-symbol guard interval prior to each of the one or more DMRSs. The intra-symbol guard interval may have a duration that is based on a duration of a CP. A UE may receive the one or more demodulation reference signals DMRSs within the symbol based on the intra-symbol guard interval prior to each of the one or more DMRSs, and perform a channel estimation based on at least one of the one or more DMRSs.

公开(公告)号：US20220322412A1

公开(公告)日：2022-10-06

申请号：US17647293

申请日：2022-01-06

Applicant: QUALCOMM Incorporated

Inventor： Mahmoud TAHERZADEH BOROUJENI ,  Tao LUO ,  Iyab Issam SAKHNINI ,  Jelena DAMNJANOVIC ,  Junyi LI ,  Jing SUN ,  Juan MONTOJO

IPC: H04W72/12 ,  H04L5/00

Abstract: Certain aspects of the present disclosure provide techniques for application of a repetition factor to uplink (UL) control channels. A method that may be performed by a user equipment (UE) includes receiving, on a downlink (DL) control channel, an indication of a configuration for repetition of a UL control channel scheduled by the DL control channel and another UL control channel, wherein the configuration is applied for repetition of the other UL control channel after a configured time period starting from reception of the DL control channel; and transmitting the repetition of the UL control channel and the repetition of the other UL control channel in accordance with the configuration.

公开(公告)号：US20220321266A1

公开(公告)日：2022-10-06

申请号：US17404991

申请日：2021-08-17

Applicant: QUALCOMM Incorporated

Inventor： Olufunmilola Omolade AWONIYI-OTERI ,  Jelena DAMNJANOVIC ,  Tao LUO ,  Peter GAAL ,  Iyab Issam SAKHNINI ,  Junyi LI ,  Juan MONTOJO ,  Aleksandar DAMNJANOVIC ,  Yan ZHOU ,  Jing SUN

IPC: H04L1/16 ,  H04W72/12 ,  H04L5/00 ,  H04W72/04

Abstract: Techniques and apparatus for providing hybrid automatic repeat request (HARQ) feedback for multiple physical downlink shared channel (PDSCH) transmissions are described. One example technique involves receiving downlink control information (DCI) scheduling a plurality of downlink data transmissions across a plurality of slots. The plurality of downlink data transmissions are monitored across the plurality of slots. At least one HARQ feedback scheme for acknowledging the plurality of downlink data transmissions is determined. HARQ feedback for the plurality of downlink data transmissions is provided in accordance with the at least one HARQ feedback scheme.

公开(公告)号：US20220295569A1

公开(公告)日：2022-09-15

申请号：US17201598

申请日：2021-03-15

Applicant: QUALCOMM Incorporated

Inventor： Iyab Issam SAKHNINI ,  Tao LUO ,  Xiaoxia ZHANG ,  Jun MA

IPC: H04W74/08 ,  H04W74/00 ,  H04L5/00 ,  H04L27/26

Abstract: For a two-step random access channel (RACH) process, the base station determines a random access configuration to configure a user equipment (UE) with the two-step RACH process that includes a communication of a first message including a preamble portion and a payload portion, where the determining the random access configuration includes determining to exclude a demodulation reference signal (DMRS) from the payload portion based on satisfaction of conditions. The base station generates configuration information including the random access configuration indicating the two-step RACH process, the configuration information including a configuration for a transmission of the preamble portion and the payload portion without the DMRS based on the satisfaction of the conditions. The base station transmits the configuration information to the UE, and subsequently receives, based on the configuration information, a first RACH message that includes the preamble portion and the payload portion without the DMRS, using the single carrier waveform.

公开(公告)号：US20220295477A1

公开(公告)日：2022-09-15

申请号：US17249751

申请日：2021-03-11

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia ZHANG ,  Jun MA ,  Jing SUN ,  Wooseok NAM ,  Iyab Issam SAKHNINI ,  Zhifei FAN ,  Tao LUO ,  Juan MONTOJO

IPC: H04W72/04 ,  H04L27/26 ,  H04L27/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, an indication of a time domain resource allocation (TDRA), in a unit of a time domain resource block (RB) or in a unit of a time domain RB group, for a communication that is to use a time domain waveform. The unit of the time domain RB or the unit of the time domain RB group may be a sub-symbol unit. The UE may communicate with the base station, using the time domain waveform, based at least in part on the TDRA for the communication. Numerous other aspects are described.

公开(公告)号：US20220231811A1

公开(公告)日：2022-07-21

申请号：US17643142

申请日：2021-12-07

Applicant: QUALCOMM Incorporated

Inventor： Qingjiang TIAN ,  Jing SUN ,  Xiaoxia ZHANG ,  Zhifei FAN ,  Iyab Issam SAKHNINI ,  Wooseok NAM ,  Tao LUO

IPC: H04L5/00

Abstract: Wireless communications systems and methods related to multiplexing of synchronization blocks (SSBs), control resource sets (CORESETs), and system information blocks (SIBs) are provided. A user equipment (UE) receives, from a base station (BS), a first SSB of a first group of SSBs of an SSB burst set, wherein the first group of SSBs and a second group of SSBs of the SSB burst set are spaced apart in time by a group of CORESETs and SIBs. The group of CORESETs and SIBs comprises one CORESET and at least one SIB for each SSB of the first group of SSBs. The UE receives, in a first CORESET of the group of CORESETs and SIBs based on the first SSB, SIB scheduling information. The UE receives, based on the SIB scheduling information, a first SIB of the group of CORESETs and SIBs.

公开(公告)号：US20220224494A1

公开(公告)日：2022-07-14

申请号：US17145266

申请日：2021-01-08

Applicant: QUALCOMM Incorporated

Inventor： Mahmoud TAHERZADEH BOROUJENI ,  Tao LUO ,  Wooseok NAM ,  Junyi LI ,  Jelena DAMNJANOVIC ,  Iyab Issam SAKHNINI ,  Juan MONTOJO

IPC: H04L5/00 ,  H04W24/10

Abstract: A base station determines a temporal filter configuration for a user equipment (UE) and transmits the temporal filter configuration to the UE. The temporal filter configuration indicates whether the UE should apply a temporal filter to channel state information (CSI) measurements to generate CSI values, or identifies which temporal filter to apply. The UE generates CSI values based on the temporal filter configuration and reports the generated CSI values to the base station.

公开(公告)号：US20220200824A1

公开(公告)日：2022-06-23

申请号：US17127677

申请日：2020-12-18

Applicant: QUALCOMM Incorporated

Inventor： Iyab Issam SAKHNINI ,  Tao LUO

IPC: H04L25/02 ,  H04L5/00 ,  H04W56/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, via a single carrier communication, a synchronization signal block (SSB) with time division multiplexed symbols that include a physical broadcast channel (PBCH) symbol and one or more of a primary synchronization signal (PSS) symbol, a secondary synchronization signal (SSS) symbol, or a demodulation reference signal (DMRS) symbol. The UE may demodulate the PBCH symbol using a channel estimation for the PBCH symbol that is based at least in part on one or more channel estimations of the PSS symbol, the SSS symbol, or the DMRS symbol. Numerous other aspects are described.