公开(公告)号：US20210226760A1

公开(公告)日：2021-07-22

申请号：US16487226

申请日：2018-03-22

Applicant: Apple Inc.

Inventor： Qiaoyang Ye ,  Debdeep Chatterjee ,  Salvatore Talarico

IPC: H04L5/00

Abstract: A network device such as an evolved NodeB (eNB) or next generation NodeB (gNB) can configure a set of user equipment (UE) for cell reference signal (CRS) muting in order to provide better channel quality and power efficiency in communications. Where an eNB mutes CRS transmissions that are not needed by any UE, an improvement in downlink throughput and reduce connection drop rate can be generated. A CRS muting capability can be determined based on a user equipment (UE) capability information. According to the CRS muting capability of a UE, CRS muting can be generated in a physical channel outside of a narrow band (NB) or a wide band (WB) plus/minus X physical resource blocks (PRBs), wherein X is a non-negative integer, based on the CRS muting capability.

公开(公告)号：US11038652B2

公开(公告)日：2021-06-15

申请号：US16500890

申请日：2018-06-11

Applicant: APPLE INC.

Inventor： Hong He ,  Debdeep Chatterjee ,  Gang Xiong ,  Hwan-Joon Kwon ,  Joonyoung Cho

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

Abstract: Technology for a user equipment (UE) operable for transmission of a shortened physical uplink control channel (sPUCCH) is disclosed. The UE can map symbols to physical resource blocks (PRBs) for a first subslot and a last subslot of a subframe for the sPUCCH. The UE can encode control information for transmission to a next generation node B (gNB) in selected PRBs.

公开(公告)号：US10986631B2

公开(公告)日：2021-04-20

申请号：US16465977

申请日：2018-06-27

Applicant: Apple Inc.

Inventor： Gang Xiong ,  Debdeep Chatterjee ,  Sergey Panteleev

IPC: H04W72/12 ,  H04W72/04 ,  H04L1/18

Abstract: An apparatus of a New Radio (NR) User Equipment (UE), a method and system. The apparatus includes baseband circuitry including a radio frequency (RF) interface and one or more processors coupled to the RF interface and configured to execute the instructions to: encode a plurality of Transport Blocks (TBs) and encode a first uplink transmission using the TBs and in a grant-free mode to a NR evolved Node B (gNodeB); decode a downlink control information (DCI) from the gNodeB; based on the DCI, encode a second uplink transmission using the TBs to the gNodeB, wherein the second uplink transmission is one of in a grant-free mode and in a grant-based mode, and wherein the DCI includes information on an identification (ID) for a hybrid automatic repeat request-acknowledge feedback (HARQ) process (HARQ process ID) corresponding to the second uplink transmission, the HARQ process ID being based on a resource configuration index corresponding to the second uplink transmission; and send the TBs, the first encoded uplink transmission, and the second encoded uplink transmission to the RF interface.

公开(公告)号：US10979958B2

公开(公告)日：2021-04-13

申请号：US16142115

申请日：2018-09-26

Applicant: APPLE INC.

Inventor： Bharat Shrestha ,  Christiane Senger ,  Marta Martinez Tarradell ,  Debdeep Chatterjee ,  Qiaoyang Ye ,  Seau Sian Lim

IPC: H04W36/36 ,  H04W36/00 ,  H04W48/12

Abstract: Systems, methods, and apparatuses can provide or obtain scheduling information for a system information block type1-bandwidth reduced (SIB1-BR) without obtaining a master information block during handover. A user equipment (UE) can identify SIB1-BR scheduling information in a radio resource control connection (RRC) reconfiguration message. The UE can determine scheduling of an SIB1-BR for a target cell based on the RRC reconfiguration message, and process the SIB1-BR received from the target cell during the determined scheduling.

公开(公告)号：US10912071B2

公开(公告)日：2021-02-02

申请号：US16277680

申请日：2019-02-15

Applicant: Apple Inc.

Inventor： Sergey Panteleev ,  Debdeep Chatterjee ,  Gang Xiong ,  Fatemeh Hamidi-Sepehr ,  Hong He

IPC: H04W72/04 ,  H04W72/14 ,  H04W72/12 ,  H04L5/00 ,  H04L1/18 ,  H04L1/00

Abstract: Embodiments of the present disclosure describe methods, apparatuses, storage media, and systems for determining to transfer multiple copies of a downlink control information through physical downlink control channel (PDCCH) to a user equipment (UE), and further determining a first downlink control information (DCI) format for scheduling of downlink (DL) assignments for Physical Downlink Shared Channel (PDSCH) reception in a DL bandwidth part (BWP), or for determining a second DCI format for scheduling uplink (UL) grants for physical uplink shared channel (PUSCH) transmission in a UL bandwidth part (BWP). Other embodiments may be described and claimed.

公开(公告)号：US20210021393A1

公开(公告)日：2021-01-21

申请号：US16865690

申请日：2020-05-04

Applicant: Apple Inc.

Inventor： Debdeep Chatterjee ,  Seunghee Han

IPC: H04L5/00 ,  H04W4/70 ,  H04L1/18

Abstract: Techniques for transmitting hybrid automatic repeat request (HARQ) feedback by narrowband Internet-of-Things (NB-IoT) devices are provided. NB-IoT user equipment (UE) can transmit HARQ feedback in response to a narrowband physical downlink shared channel (NPDSCH) received over a downlink (DL). NB-IoT UEs can transmit the responsive HARQ feedback over a narrowband physical uplink shared channel (NPUSCH) or a narrowband physical uplink control channel (NPUCCH). Options for defining the physical structures of the NPUCCH and NPUSCH and user multiplexing on the uplink (UL) are provided. Determination of an UL resource allocation by determining resources in time, frequency, and the code domain for the HARQ feedback transmissions are also provided. Higher level signaling and/or indications provided in downlink control information (DCI) can be used to determine the time, frequency, or code domain resources.

公开(公告)号：US10813116B2

公开(公告)日：2020-10-20

申请号：US16407559

申请日：2019-05-09

Applicant: Apple Inc.

Inventor： Debdeep Chatterjee ,  Hong He ,  Seung Hee Han

IPC: H04J3/16 ,  H04W72/12 ,  H04W72/14 ,  H04L1/18 ,  H04W72/04

Abstract: A method of support of aggressive user equipment (UE) minimum processing times for physical downlink shared channel (PDSCH) processing and physical uplink shared channel (PUSCH) preparation in new radio (NR) is disclosed. The method includes indicating or causing to indicate a capability from the UE to the network in the form of capability reporting for support of Capability 2 processing times, and multiplexing or causing to multiplex scheduling instances with Capabilities 1 or 2 based on the indication. The method also includes applying or causing to apply a relaxation to the minimum UE processing times, N1, indicating time between end of PDSCH to earliest start of corresponding hybrid automatic repeat request-acknowledge (HARQ-ACK) feedback transmission when the PDSCH has specific durations and/or mapping types or has time-domain overlaps with the scheduling physical downlink control channel (PDCCH). A corresponding apparatus and non-transitory computer readable medium are also disclosed.

公开(公告)号：US20200305131A1

公开(公告)日：2020-09-24

申请号：US16192271

申请日：2018-11-15

Applicant: Apple Inc.

Inventor： Debdeep Chatterjee ,  Gang Xiong ,  Seunghee Han

IPC: H04W72/04 ,  H04L1/18 ,  H04L1/00

Abstract: Systems, apparatus, user equipment (UE), evolved node B(eNB), and methods are described for machine-type communications (MTC) with early termination of repeated transmissions. In MTC implementations with narrow bandwidth, significant numbers of retransmissions may be scheduled based on channel quality measurements. If data is successfully decoded at a receiving device while a significant number of retransmissions remain, system resources are wasted. Embodiments described herein thus use downlink control messaging or intermediate hybrid automatic repeat request (HARQ) messaging for early termination of repeated messages.

公开(公告)号：US20200287752A1

公开(公告)日：2020-09-10

申请号：US16825931

申请日：2020-03-20

Applicant: Apple Inc.

Inventor： Debdeep Chatterjee ,  Gang Xiong

IPC: H04L25/02 ,  H04L5/00

Abstract: Embodiments of the present disclosure describe systems, devices, and methods for channel estimation for NB-PBCH in NB-LTE systems. Various embodiments may relate to options that can be used for demodulation of the NB-PBCH by the NBLTE-UEs, and in certain embodiments may include a reference signal (RS) usable for demodulation of the NB-PBCH by the NBLTE-UEs. Other embodiments maybe described or claimed.

公开(公告)号：US20200229270A1

公开(公告)日：2020-07-16

申请号：US16638333

申请日：2018-08-09

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 ,  H04W72/04 ,  H04W80/08 ,  H04W24/08

Abstract: A user equipment (UE) may receive information, via radio resource control (RRC) signaling, regarding a search space of a physical downlink control channel (PDCCH) for obtaining downlink control information (DCI) from a radio access network (RAN) node. Based on a slot format (SF) index in the DCI, the UE may determine a slot format for communicating with the RAN node, and communicate with the RAN node in accordance with the slot format. Additionally, a UE may communicate UE capability information, which may include a maximum number of blind decode attempts (BDAs), to the RAN node. The UE may determine 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), obtain sDCI by monitoring the sPDCCH in accordance with the determined sCCEs, and communicate with the RAN node in accordance with the sDCI.