公开(公告)号：US11700643B2

公开(公告)日：2023-07-11

申请号：US17144928

申请日：2021-01-08

Applicant: QUALCOMM Incorporated

Inventor： Mahmoud Taherzadeh Boroujeni ,  Tao Luo ,  Peter Gaal ,  Juan Montojo ,  Jelena Damnjanovic ,  Yan Zhou ,  Iyab Issam Sakhnini

IPC: H04W74/08

CPC classification number: H04W74/0833

Abstract: Aspects described herein relate to communicating a first random access message in a two-step random access procedure, where the first random access message includes an indication to receive one or more repetitions of a second random access message from the base station, and communicating, based on the indication, an initial transmission of the second random access message and the one or more repetitions of the second random access message.

公开(公告)号：US11696301B2

公开(公告)日：2023-07-04

申请号：US17235773

申请日：2021-04-20

Applicant: QUALCOMM Incorporated

Inventor： Iyab Issam Sakhnini ,  Qiang Wu ,  Tao Luo ,  Jun Ma ,  Mehmet Izzet Gurelli ,  Ahmed Abdelaziz Ibrahim Abdelaziz Zewail ,  Xiaoxia Zhang ,  Jing Sun

IPC: H04W72/23

CPC classification number: H04W72/23

Abstract: A scheduling entity can schedule regular or periodic control resources (CORESETs) that are relatively sparse in the time domain compared to dynamic CORESETS. Sparsely scheduled regular CORESETs can reduce the overhead incurred by a user equipment for monitoring the control channels in the CORESETs or search spaces. When the network has a burst of data to send, the scheduling entity can use downlink control information (DCI) piggybacked in physical downlink shared channel (PDSCH) resources to schedule dynamic CORESETs between the regular CORESETs. The dynamic CORESETs can provide resources for a PDSCH and/or physical downlink shared channel (PUSCH).

公开(公告)号：US20230171800A1

公开(公告)日：2023-06-01

申请号：US17536842

申请日：2021-11-29

Applicant: QUALCOMM Incorporated

Inventor： Mahmoud Taherzadeh Boroujeni ,  Tao Luo ,  Iyab Issam Sakhnini ,  Jelena Damnjanovic ,  Juan Montojo ,  Peter Gaal ,  Junyi Li

IPC: H04W72/12 ,  H04W72/04 ,  H04L27/26

CPC classification number: H04W72/1231 ,  H04W72/042 ,  H04L27/2676

Abstract: Methods, systems, and devices for wireless communications are described for scheduled communications in which multiple different communication instances are scheduled between a user equipment (UE) and a base station. Different communication parameters for different communication instances may be selected based on reported channel conditions between the UE and the base station. Subsequent to a report of channel conditions results in chanced communication parameters, the UE may blind decode a one or more scheduled communications using multiple candidate sets of decoding hypotheses to identify a first candidate set of decoding parameters that is used for the first scheduled communication. Such techniques provide that communication parameters may be adjusted based on channel conditions, and a UE may decode a communication in the event that the base station does not successfully receive a measurement report and continues transmissions using a prior set of parameters.

公开(公告)号：US20230147301A1

公开(公告)日：2023-05-11

申请号：US17454519

申请日：2021-11-11

Applicant: QUALCOMM INCORPORATED

Inventor： Prashant Sharma ,  Changhwan Park ,  Iyab Issam Sakhnini ,  Tao Luo

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

CPC classification number: H04W72/085 ,  H04W72/044 ,  H04L5/0012 ,  H04W72/0406

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may indicate measurement gap information to a base station. For example, a UE may receive signaling configuring hopping patterns for multiple bandwidth parts (BWPs). Each BWP may include resource blocks having a bandwidth that is less than a threshold bandwidth support by the UE. The UE may transmit control signaling indicating measurement gap information for frequency spectrum bands, and the control signaling may indicate whether a measurement gap is applicable for measurements. The indication may be based on hopping patterns and a frequency-domain location of signals to be measured. The UE may determine a measurement gap pattern for an active BWP based on an association between the measurement gap pattern and the active BWP, or between the measurement gap pattern and a hopping pattern. The UE may perform measurements on signals based on the measurement gap pattern.

公开(公告)号：US11638245B2

公开(公告)日：2023-04-25

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：US11622389B2

公开(公告)日：2023-04-04

申请号：US17215535

申请日：2021-03-29

Applicant: QUALCOMM Incorporated

Inventor： Iyab Issam Sakhnini ,  Qiang Wu ,  Tao Luo ,  Xiaoxia Zhang ,  Ahmed Abdelaziz Ibrahim Abdelaziz Zewail ,  Jun Ma ,  Mehmet Izzet Gurelli ,  Jing Sun

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

Abstract: A UE, as a part of a RACH communication procedure, may transmit a first sequence within a first set of resources having a first SCS and a second sequence within a second set of resources having a second SCS greater than the first SCS. The second sequence is transmitted with a cyclic prefix greater than inverse of the first SCS divided by a sequence length of the first sequence. The first sequence is a first PRACH preamble. The second sequence may be a second PRACH preamble, an SRS sequence, or DMRS. The UE may repeat the transmission of the first sequence for a first number of times and repeat the transmission of the second sequence for a second number of times independent of the first number.

公开(公告)号：US20230101584A1

公开(公告)日：2023-03-30

申请号：US17484529

申请日：2021-09-24

Applicant: QUALCOMM Incorporated

Inventor： Iyab Issam Sakhnini ,  Tao Luo ,  Jun Ma ,  Jing Sun ,  Xiaoxia Zhang ,  Hemant Saggar ,  Morteza Soltani

IPC: H04L27/00 ,  H04W56/00

Abstract: Methods, systems, and devices for scrambling initialization indication for higher bands are described. For example, a user equipment (UE) may receive a synchronization signal block (SSB) from a base station, the SSB including a primary synchronization signal (PSS), a data payload, and a demodulation reference signal (DMRS). The UE may identify a first part of a cell identifier (ID) of the base station, a second part of the cell ID, or both, indicated in a sequence of the DMRS, indicated in the data payload, or a combination thereof. The UE may monitor for a message from the base station based on identifying the cell ID.

公开(公告)号：US11617171B2

公开(公告)日：2023-03-28

申请号：US17134869

申请日：2020-12-28

Applicant: QUALCOMM Incorporated

Inventor： Iyab Issam Sakhnini ,  Tao Luo ,  Xiaoxia Zhang

IPC: H04W72/04 ,  H04W72/0446 ,  H04L27/26

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may receive, in a first time slot, a cyclic prefix (CP) at a start end of the first time slot, data content, and tail samples at a tail end of the first time slot. The wireless communication device may initiate a gap action, such as switching beams, during receipt of the tail samples, the gap action taking place within a time gap formed by at least the tail samples. The time gap may also include a CP of a second time slot that is subsequent to the first time slot. The wireless communication device may complete the gap action within the time gap. Numerous other aspects are described.

公开(公告)号：US11595944B2

公开(公告)日：2023-02-28

申请号：US17249852

申请日：2021-03-16

Applicant: QUALCOMM Incorporated

Inventor： Mahmoud Taherzadeh Boroujeni ,  Iyab Issam Sakhnini ,  Tao Luo ,  Jelena Damnjanovic

IPC: H04W72/00 ,  H04W72/04 ,  H04L5/00 ,  H04W72/044

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a physical broadcast channel (PBCH) communication from a base station (BS). The UE may identify, based at least in part on a determination that the PBCH communication indicates a reference signal that is to be transmitted prior to transmission of a remaining minimum system information (RMSI) physical downlink control channel (PDCCH) communication, one or more radio resources in which the reference signal is to be transmitted. The UE may monitor for the reference signal, from the BS, in the one or more radio resources prior to reception of the RMSI PDCCH communication. Numerous other aspects are provided.

公开(公告)号：US20230047938A1

公开(公告)日：2023-02-16

申请号：US17387562

申请日：2021-07-28

Applicant: QUALCOMM Incorporated

Inventor： Hemant Saggar ,  Iyab Issam Sakhnini ,  Jun Ma ,  Tao Luo

IPC: H04L5/00 ,  H04L27/26

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive an indication of a subcarrier spacing (SCS) for communications in a transmission time interval (TTI), such as a half-subframe, including multiple symbols, corresponding cyclic prefixes, and a padding duration which is at least as long as a symbol duration. The UE may receive a configuration for the padding duration, indicating that at least a portion of the padding duration is reallocated for a reference signal that indicates waveform parameters for one or more symbols of the TTI after the padding duration. The UE may receive the reference signal indicating the waveform parameters during the portion of the padding duration and communicate during the one or more symbols of the TTI according to the waveform parameters.