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公开(公告)号：US11425750B2
公开(公告)日：2022-08-23
申请号：US16488133
申请日：2018-03-22
Applicant: Apple Inc.
Inventor： Gang Xiong , Debdeep Chatterjee , Ajit Nimbalker , Hong He
Abstract: Timing determination techniques for 5G radio access network cells are described. According to various such techniques, during a random access procedure in a 5G cell, user equipment (UE) may determine slot offset values applicable to various transmissions associated with the random access procedure using procedures that do not rely on UE-specific radio resource control (RRC) signaling. According to some such techniques, during system information acquisition in a 5G cell, a UE may determine applicable slot offset values for one or more system information block (SIB) transmissions using procedures that do not rely on UE-specific radio resource control (RRC) signaling. Other embodiments are described and claimed.
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公开(公告)号：US20220201737A1
公开(公告)日：2022-06-23
申请号：US17692673
申请日：2022-03-11
Applicant: Apple Inc.
Inventor： Debdeep Chatterjee , Sergey Panteleev , Gang Xiong
Abstract: The disclosure describes mechanisms for reliability enhancement on control channel and data channel and mechanisms in URLLC. An apparatus of a RAN node for URLLC includes baseband circuitry to configure at least one DCI for scheduling transmission of at least one PDSCH content having same information. For each DCI, the baseband circuitry determines a CORESET for transmitting the DCI. The disclosure further describes mechanisms for the support of low latency transmission in URLLC. To improve peak data rate and spectrum efficiency in FDD system, the RAN node configures a DCI for scheduling data transmission using blank resources of a self-contained slot structure. Further, CBG-based transmission with separate HARQ-ACK feedback is provided to configure a DCI for scheduling data transmission of a TB and to divide the TB into multiple CBGs, and to configure uplink control data to carry separate HARQ feedback for the CBGs.
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公开(公告)号：US20220201649A1
公开(公告)日：2022-06-23
申请号：US17589437
申请日：2022-01-31
Applicant: Apple Inc.
Inventor： Timothy F. Cox , Seunghee Han , Debdeep Chatterjee , Vallabhajosyula S. Somayazulu , Qiaoyang Ye , Salvatore Talarico , Maruti Gupta Hyde
Abstract: Systems and methods of reducing power consumption associated with paging or cDRX mode are described. A wake-up receiver (WUR) wakes up from an idle mode or cDRX state. Whether a wake-up signal (WUS) has been received by the WUR is determined. The WUS is a low-complexity signal that is less complicated than a PDCCH or PDSCH and is repeated multiple times at resource elements as indicated in a configuration from an eNB. If received, a baseband transceiver wakes up for reception of a PDCCH for the UE in a PO when the UE is in the idle mode or a PDSCH for the UE when the UE is in the cDRX state.
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公开(公告)号：US20220158775A1
公开(公告)日：2022-05-19
申请号：US17438661
申请日：2020-03-27
Applicant: Apple Inc.
Inventor： Gang Xiong , Yushu Zhang , Bishwarup Mondal , Debdeep Chatterjee , Guotong Wang
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.
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公开(公告)号：US11290230B2
公开(公告)日：2022-03-29
申请号：US16625149
申请日：2018-06-20
Applicant: Apple Inc.
Inventor： Debdeep Chatterjee , Alexei Vladimirovich Davydov , Seunghee Han , Jeongho Jeon , Sameer Pawar , Avik Sengupta , Guotong Wang , Yushu Zhang
Abstract: A user equipment (UE) can include processing circuitry configured to decode control information of a physical downlink control channel (PDCCH) received via a resource within a control resource set (CORESET) occupying a subset of a plurality of OFDM symbols within a slot. At least one of the symbols in the subset coincides with a pre-defined symbol location associated with a demodulation reference signal (DM-RS) of a PDSCH. The DM-RS can be detected within the slot, the DM-RS starting at a symbol location that is shifted from the pre-defined symbol location and following the subset of symbols. Downlink data scheduled by the PDCCH and received via the PDSCH can be decoded, where the decoding is based on the detected DM-RS.
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Patent Agency Ranking
26.发明授权公开(公告)号：US11265091B2
公开(公告)日：2022-03-01
申请号：US16734564
申请日：2020-01-06
Applicant: Apple Inc.
Inventor： Alexei Davydov , Seunghee Han , Debdeep Chatterjee , Gregory Morozov , Dae Won Lee , Yongjun Kwak
IPC: H04W72/04 , H04B7/08 , H04B17/382 , H04B7/06 , H04B17/318 , H04W24/08 , H04L5/00 , H04L25/02 , H04B17/24 , H04W24/10
Abstract: Embodiments of the present disclosure describe apparatuses, methods and machine-readable storage medium for Reference Signal Received Power (RSRP) measurement and allocation of Downlink (DL) transmission resources. A user equipment (UE) may detect a first Synchronization Signal/Physical Broadcast Channel (SS/PBCH) block, and determine a subcarrier spacing (SCS) thereof. Mapping the first SS/PBCH block to OFDM symbols may be dependent on the SCS and a first SS/PBCH block index of the first SS/PBCH block. The UE may determine, based on the first SS/PBCH block and the SCS, a number of symbols of the slot or the slot pair for a CORESET for reception of a DL control channel associated with Remaining Minimum System Information (RMSI). The UE may decode the DL control channel in the CORESET. The DL control channel may be configured to indicate a DL data channel carrying the RMSI associated with the first SS/PBCH block.
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27.发明授权公开(公告)号：US11239987B2
公开(公告)日：2022-02-01
申请号：US16408030
申请日：2019-05-09
Applicant: Apple Inc.
Inventor： Qiaoyang Ye , Debdeep Chatterjee
Abstract: Embodiments described herein relate to time division duplexing (TDD) support for in-band, guard band, and standalone operation modes of narrowband internet-of-things (NB-IoT) systems. At least one example is directed to an indication technique for transmission of a narrowband system information block type 1 (SIB1-NB) on a carrier.
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公开(公告)号：US11191064B2
公开(公告)日：2021-11-30
申请号：US15501152
申请日：2015-06-04
Applicant: Apple Inc.
Inventor： Gang Xiong , Seunghee Han , Debdeep Chatterjee , Jong-Kae Fwu
Abstract: Embodiments described herein relate generally to a communication between a user equipment (UE) and an evolved Node B (eNB). The UE and eNB may perform enhanced physical downlink control channel (EPDCCH)-less operation for scheduling of one or more common control messages, such as one or more system information blocks (SIBs), a random access response (RAR) message, or a paging message. Additionally, or alternatively, an eNB may configure a subset of aggregation levels for the search space of the UE to use for receiving a physical downlink control channel (PDCCH) or enhanced PDCCH (EPDCCH). Other embodiments may be described and/or claimed.
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公开(公告)号：US11159928B2
公开(公告)日：2021-10-26
申请号：US16316771
申请日：2017-08-11
Applicant: Apple Inc.
Inventor： Debdeep Chatterjee , Hyung-Nam Choi , Marta Martinez Tarradell , Seau Lim , Seunghee Han
Abstract: Support of Single-Cell Point-To-Multipoint (SC-PTM) for narrowband (UEs) and low complexity (BL) UEs can is implemented at both the physical layers and the higher layers. For example, in one implementation, a UE may transmit, to a Single-Cell Point-To-Multipoint (SC-PTM) base station, multicast service preference information, including at least one of a Coverage Enhancement (CE) mode or a maximum Transport Block Size (TBS) of the UE. The UE may also monitor a common search space (CSS) of a MTC Physical Downlink Control Channel (MPDCCH) or Narrowband Physical Data Control Channel (NPDCCH) for the scheduling of a Physical Downlink Shared Channel (PDSCH) or a Narrowband Physical Downlink Shared Channel (NPDSCH), respectively, to obtain downlink control information (DCI) that includes configuration information relating to a Single-Cell Multicast Control Channel (SC-MCCH).
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30.发明授权公开(公告)号：US11147051B2
公开(公告)日：2021-10-12
申请号：US16464814
申请日：2018-02-05
Applicant: Apple Inc.
Inventor： Yongjun Kwak , Gang Xiong , Hwan-Joon Kwon , Hong He , Seung Hee Han , Debdeep Chatterjee
Abstract: Techniques discussed herein can facilitate transmission and reception of group common PDCCH (Physical Downlink Control Channel) for NR (New Radio). One example embodiment employable by a UE (User Equipment) comprises processing circuitry configured to: process higher layer signaling that configures a set of combinations for slot formats for the UE; detect, via blind decoding on at least a portion of a control resource set, a DCI (Downlink Control Information) message that indicates a combination for slot formats of the set of combinations for slot formats via a SFI (slot format indicator); and determine a slot format for one or more slots based on the indicated combination for slot formats, wherein the slot format indicates, for each symbol of the one or more slots, whether that symbol is DL (Downlink), UL (Uplink), or a flexible symbol in the slot format.
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