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：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.

公开(公告)号：US12047218B2

公开(公告)日：2024-07-23

申请号：US17435730

申请日：2020-03-27

Applicant: Apple Inc.

Inventor： Bishwarup Mondal ,  Debdeep Chatterjee ,  Yongjun Kwak ,  Dae Won Lee ,  Avik Sengupta

IPC: H04L27/26 ,  H04L1/00 ,  H04W56/00

CPC classification number: H04L27/2675 ,  H04L1/0013 ,  H04W56/0015

Abstract: Systems, methods, and circuitries are provided for maximizing use of discovery reference (DRS) resources for remaining minimum system information (RMSI) allocation. An example method includes configuring Type 0 physical downlink control channel (PDCCH) CORESET monitoring to include monitoring in either a first slot or a first slot and a second slot; generating a synchronization signal block (SSB) encoding the configured PDCCH CORESET monitoring; and transmitting the SSB to a user equipment (UE) by way of a discovery reference signal (DRS).

公开(公告)号：US12041695B2

公开(公告)日：2024-07-16

申请号：US17894410

申请日：2022-08-24

Applicant: Apple Inc.

Inventor： Debdeep Chatterjee ,  Gang Xiong ,  Hong He ,  Yongjun Kwak ,  Alexei Davydov ,  Hwan-Joon Kwon ,  Dae Won Lee

IPC: H04W88/06 ,  H04L5/00 ,  H04W24/08 ,  H04W72/0446 ,  H04W72/23 ,  H04W80/08

CPC classification number: H04W88/06 ,  H04L5/0092 ,  H04L5/0094 ,  H04W24/08 ,  H04W72/0446 ,  H04W72/23 ,  H04W80/08

Abstract: A user equipment (UE) may include one or more processors that are configured to cause UE capability information to be communicated to a radio access network (RAN) node, regarding a maximum number of blind decode attempts (BDAs) supported by the UE. The one or more processors are configured to determine, based on the maximum BDAs, shortened channel control elements (sCCEs) to be used, by the RAN node, to transmit shortened downlink control information (sDCI) via a shortened physical downlink control channel (sPDCCH) and obtain sDCI by monitoring the sPDCCH in accordance with the determined sCCEs.

公开(公告)号：US12022482B2

公开(公告)日：2024-06-25

申请号：US17279379

申请日：2019-09-27

Applicant: Apple Inc.

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

IPC: H04W72/23 ,  H04L5/00

CPC classification number: H04W72/23 ,  H04L5/0051

Abstract: Methods, systems, and storage media are described for the cancellation of uplink (UL) transmissions for new radio (NR). Other embodiments may be described and/or claimed.