公开(公告)号：US10813068B2

公开(公告)日：2020-10-20

申请号：US14582580

申请日：2014-12-24

Applicant: Apple Inc.

Inventor： Hong He ,  Alexey Khoryaev ,  Debdeep Chatterjee ,  Mikhail Shilov ,  Pingping Zong

IPC: H04W56/00 ,  H04W24/10 ,  H04W8/00 ,  H04W48/16 ,  H04W76/14

Abstract: A user equipment (UE) is configured to scan for device-to-device synchronization sources based on scanning configuration information. The UE is configured to report detection of a device-to-device synchronization source to an Evolved Universal Terrestrial Radio Access Network (E-UTRAN) Node B (eNB) in response to determining that the device-to-device synchronization source meets one or more reporting requirements of the scanning configuration information. The UE is configured to receive a communication from the eNB enabling the UE as a synchronization source and transmit signals to provide a synchronization reference to one or more in-range UEs including the device-to-device synchronization source.

公开(公告)号：US20200266952A1

公开(公告)日：2020-08-20

申请号：US16797956

申请日：2020-02-21

Applicant: Apple Inc.

Inventor： Debdeep Chatterjee ,  Marta Martinez Tarradell

IPC: H04L5/00 ,  H04W48/00 ,  H04W68/02 ,  H04W48/12 ,  H04W4/70

Abstract: This disclosure relates to implementations to support non-UE-specific (i.e. common) and UE-specific search spaces (SS) for M-PDCCH. One implementation relates to a UE comprising RF circuitry to receive, from an eNB, configuration information of one or a plurality of common Search Spaces (CSSs) for M-PDCCH; and baseband circuitry to monitor the one or more configured CSS for M-PDCCH transmissions; wherein the RF circuitry and/or baseband circuitry is adapted to support a reduced bandwidth (BW). Another implementation relates to an eNB comprising RF circuitry to transmit configuration information of a plurality of CSSs for M-PDCCH to one or more UEs supporting a reduced BW, wherein the plurality of CSSs for M-PDCCH are differentiated by “based on functionality”-differentiation that includes the type of use case and/or an EC level of the UE.

公开(公告)号：US12289732B2

公开(公告)日：2025-04-29

申请号：US17470429

申请日：2021-09-09

Applicant: Apple Inc.

Inventor： Qiaoyang Ye ,  Debdeep Chatterjee ,  Gang Xiong ,  Bharat Shrestha ,  Salvatore Talarico

IPC: H04W72/23 ,  H04L1/1829 ,  H04W76/30

Abstract: Systems and methods of early termination of uplink data transmissions for a UE are described. The UE transmits capacity information that indicates that the UE supports use of an ETS. The ETS indicates successful reception by the eNB of the uplink data prior to an end of a scheduled transmission period to transmit repeated instances of the data. The UE receives a schedule for repeated transmissions of the data that is based on a coverage level of the UE, and then transmits sets of one or more repetitions. After the transmission, the UE monitors a predetermined resource whether the ETS is present or whether the ETS indicates an ACK. If the ETS indicates successful reception, the UE terminates transmission of the remaining repetitions of the data and enters a sleep mode or transmits other uplink data.

公开(公告)号：US12279137B2

公开(公告)日：2025-04-15

申请号：US17442812

申请日：2020-04-02

Applicant: Apple Inc.

Inventor： Debdeep Chatterjee ,  Fatemeh Hamidi-Sepehr ,  Toufiqul Islam ,  Sergey Panteleev

IPC: H04W24/08

Abstract: A method for physical downlink control channel (PD-CCH) monitoring by user equipment (UE includes receiving a specification indicative of a monitoring pattern for a search space set including a plurality of slots. The monitoring pattern includes one or more monitoring spans within the search space set. Each of the one or more monitoring spans is associated with a set of parameters defining that particular monitoring span. The method includes selecting at least one monitoring span of the one or more monitoring spans. The method includes assigning the UE to monitor the at least one monitoring span. The method includes performing, by the UE, PDCCH monitoring during the selected at least one monitoring span.

公开(公告)号：US12273875B2

公开(公告)日：2025-04-08

申请号：US17440909

申请日：2020-04-02

Applicant: Apple Inc.

Inventor： Toufiqul Islam ,  Debdeep Chatterjee ,  Sergey Panteleev ,  Fatemeh Hamidi-Sepehr

IPC: H04W72/23 ,  H04W72/1268

Abstract: In an example computer-implemented method, a user equipment (UE) receives first configuration data including an indication of a search space set for monitoring a wireless network for an uplink cancellation command, and second configuration including an indication to activate monitoring of the wireless network for an uplink cancellation command. The UE further receives a first physical downlink control channel (PDCCH) including scheduling information for an uplink transmission. The UE monitors the wireless communications network for the uplink cancellation command in accordance with the search space set, and receives a second PDCCH from the wireless including the uplink cancellation command, where the uplink cancellation command includes an indication to cancel a first portion of the uplink transmission. The UE cancels a transmission of the first portion of the uplink transmission.

公开(公告)号：US20250056554A1

公开(公告)日：2025-02-13

申请号：US18931676

申请日：2024-10-30

Applicant: Apple Inc.

Inventor： Hong He ,  Debdeep Chatterjee ,  Gang Xiong

IPC: H04W72/23 ,  H04L5/00 ,  H04W24/08 ,  H04W48/16 ,  H04W76/11 ,  H04W76/27

Abstract: A network device (e.g., a user equipment (UE), or a new radio NB (gNB)) can process or generate a configuration of physical downlink control channel (PDCCH) monitoring in different search spaces sets independently from one another in order to manage different services optimally. A processor of the network device can be configured to receive physical downlink control channel (PDCCH) candidates of a PDCCH in a slot for channel estimation across search spaces of the slot. Different priorities can be determined among the PDCCH candidates in the slot based on a priority rule. Then a number of PDCCH candidates can be skipped/dropped from monitoring based on the different priorities of the PDCCH candidates to ensure that a threshold level of blind decoding operations across a plurality of slots of the PDCCH is being satisfied. The UE can monitor a portion of the PDCCH candidates while concurrently skipping another.

公开(公告)号：US12192015B2

公开(公告)日：2025-01-07

申请号：US17438661

申请日：2020-03-27

Applicant: Apple Inc.

Inventor： Gang Xiong ,  Yushu Zhang ,  Bishwarup Mondal ,  Debdeep Chatterjee ,  Guotong Wang

IPC: H04L1/1829 ,  H04L1/1867 ,  H04W74/00

Abstract: Systems, devices, and techniques for wireless communications are described. A described technique includes receiving, by a user equipment (UE) from one or more Transmission and Reception Points (TRPs), a physical downlink shared channel (PDSCH) transmission; determining, by the UE for a physical uplink control channel (PUCCH) carrying hybrid automatic repeat request-acknowledgement (HARQ-ACK), a TRP index in accordance with a control resource set (CORESET) scheduling the PDSCH transmission; and transmitting, by the UE via the PUCCH, HARQ-ACK information based on the receiving of the PDSCH transmission in accordance with the TRP index.

公开(公告)号：US12156063B2

公开(公告)日：2024-11-26

申请号：US17427346

申请日：2020-02-14

Applicant: Apple Inc.

Inventor： Qiaoyang Ye ,  Bharat Shrestha ,  Debdeep Chatterjee ,  Gregory Morozov

IPC: H04W4/00 ,  H04W24/10

Abstract: An approach is described for a user equipment (UE) for enhanced machine-type communication (eMTC) in a connected mode, where the UE includes processor circuitry and radio front end circuitry. The processor circuitry is configured to perform a downlink (DL) quality measurement, and to generate a DL quality report based on the DL quality measurement, wherein a definition of the DL quality report matches a definition of quality report in Msg3. The radio front end circuitry is configured to transmit the DL quality report to a next generation base station (gNB).

公开(公告)号：US12089068B2

公开(公告)日：2024-09-10

申请号：US18116496

申请日：2023-03-02

Applicant: Apple Inc.

Inventor： Fatemeh Hamidi-Sepehr ,  Debdeep Chatterjee ,  Bishwarup Mondal ,  Sergey Panteleev ,  Toufiqul Islam ,  Yushu Zhang ,  Alexei Vladimirovich Davydov

IPC: H04W16/28 ,  H04W72/044 ,  H04W72/23 ,  H04W76/20

CPC classification number: H04W16/28 ,  H04W72/046 ,  H04W72/0466 ,  H04W72/23 ,  H04W76/20

Abstract: User equipment (UE) includes processing circuitry coupled to memory. To configure the UE for multi-transmission reception point (TRP) reception, the processing circuitry is to decode radio resource control (RRC) signaling. The RRC signaling includes configuration information configuring a plurality of transmission configuration indication (TCI) states. A media access control (MAC) control element (CE) is decoded, where the MAC CE indicates multiple active TCI states of the configured plurality of TCI states. Multiple received beams are determined using the multiple active TCI states. Downlink information is decoded, where the downlink information originates from multiple TRPs and is received via the determined multiple receive beams associated with the multiple active TCI states.

公开(公告)号：US12075268B2

公开(公告)日：2024-08-27

申请号：US17441898

申请日：2020-05-01

Applicant: Apple Inc.

Inventor： Debdeep Chatterjee ,  Fatemeh Hamidi-Sepehr ,  Sergey Panteleev ,  Toufiqul Islam

IPC: H04W24/08 ,  H04L1/00 ,  H04W72/0446 ,  H04W72/23 ,  H04W72/51

CPC classification number: H04W24/08 ,  H04L1/0038 ,  H04W72/0446 ,  H04W72/23 ,  H04W72/51

Abstract: A method for enhanced physical downlink control channel monitoring (PDCCH) includes determining a monitoring span for monitoring a PDCCH within a slot, the monitoring span having a start symbol and a duration that spans one or more symbols within the slot. At least one of a maximum number of blind decoding (BD) attempts or a maximum number of control channel elements (CCEs) for channel estimation is determined based on the monitoring span. The PDCCH is monitored within the monitoring span up to the at least one of the maximum number of BD attempts or the maximum number of CCEs.