公开(公告)号：US20220264352A1

公开(公告)日：2022-08-18

申请号：US17733057

申请日：2022-04-29

Applicant: Apple Inc.

Inventor： Abhijeet Bhorkar ,  Hwan-Joon Kwon ,  Jeongho Jeon ,  Qiaoyang Ye

IPC: H04W24/10 ,  H04L5/00 ,  H04B7/0456 ,  H04B7/06 ,  H04L1/00

Abstract: Techniques for channel state information (CSI) reporting are discussed. One example apparatus at a user equipment can derive, for one or more subframes of a license assisted access (LAA) secondary cell (SCell), one or more channel measurements based on reference signals (e.g., cell-specific reference signals (CRS) or CSI reference signals (CSI-RS)), in those subframes; generate CSI that comprises a channel quality indicator (CQI) based on an average of the one or more channel measurements from multiple subframes comprising a first subframe and a later second subframe, wherein each orthogonal frequency division multiplexing (OFDM) symbol of a second slot of the first subframe is occupied, wherein each of a first three OFDM symbols of the second subframe are occupied, and wherein each OFDM symbol between the first subframe and the second subframe is occupied; and generate a CSI report that indicates the set of CSI parameters.

公开(公告)号：US11337098B2

公开(公告)日：2022-05-17

申请号：US16994965

申请日：2020-08-17

Applicant: Apple Inc.

Inventor： Abhijeet Bhorkar ,  Hwan-Joon Kwon ,  Jeongho Jeon ,  Qiaoyang Ye

IPC: H04W24/10 ,  H04L5/00 ,  H04B7/0456 ,  H04B7/06 ,  H04L1/00 ,  H04L27/00

Abstract: Techniques for channel state information (CSI) reporting are discussed. One example apparatus at a user equipment can derive, for one or more subframes of a license assisted access (LAA) secondary cell (SCell), one or more channel measurements based on reference signals (e.g., cell-specific reference signals (CRS) or CSI reference signals (CSI-RS)), in those subframes; generate CSI that comprises a channel quality indicator (CQI) based on an average of the one or more channel measurements from multiple subframes comprising a first subframe and a later second subframe, wherein each orthogonal frequency division multiplexing (OFDM) symbol of a second slot of the first subframe is occupied, wherein each of a first three OFDM symbols of the second subframe are occupied, and wherein each OFDM symbol between the first subframe and the second subframe is occupied; and generate a CSI report that indicates the set of CSI parameters.

公开(公告)号：US10932185B2

公开(公告)日：2021-02-23

申请号：US16060401

申请日：2016-12-07

Applicant: Apple Inc.

Inventor： Qiaoyang Ye ,  Hwan-Joon Kwon ,  Abhijeet Bhorkar ,  Jeongho Jeon ,  Fatemeh Hamidi-Sepehr

IPC: H04W48/16 ,  H04L27/00 ,  H04W16/14 ,  H03M13/09 ,  H04L1/00 ,  H04L5/00 ,  H04J11/00

Abstract: Described is an apparatus of an Evolved Node-B (eNB) operable to communicate with a User Equipment (UE) on a wireless network. The apparatus may comprise a circuitry operable to generate a Master Information Block (MIB) for transmission on one or more Physical Resource Blocks (PRBs). The apparatus may also comprise a circuitry operable to map the MIB onto at least one Orthogonal Frequency Division Multiplexing (OFDM) symbol of the PRBs outside of symbols 7, 8, 9, and 10. Transmission of the PRBs may be subject to an LBT procedure.

公开(公告)号：US12171003B2

公开(公告)日：2024-12-17

申请号：US17515166

申请日：2021-10-29

Applicant: Apple Inc.

Inventor： Qiaoyang Ye ,  Hwan-Joon Kwon ,  Jeongho Jeon ,  Abhijeet Bhorkar

IPC: H04W72/12 ,  H04L5/00 ,  H04W72/21 ,  H04W72/23 ,  H04W16/14

Abstract: Systems, apparatus, user equipment (UE), evolved node B (eNB), computer readable media, and methods are described for scheduling of multiple uplink transmissions in unlicensed spectrum. One embodiment involves receiving, at an eNB, a first uplink scheduling request from a UE, scheduling a plurality of uplink subframes on the unlicensed channel in response to the first uplink scheduling request, and initiating transmission of a first subframe to the first UE in response to the scheduling of the plurality of uplink subframes, wherein the first subframe comprises one or more downlink control indicators (DCIs) allocating the plurality of uplink subframes to the first UE.

公开(公告)号：US20240023106A1

公开(公告)日：2024-01-18

申请号：US18469247

申请日：2023-09-18

Applicant: Apple Inc.

Inventor： Qiaoyang Ye ,  Hwan-Joon Kwon ,  Jeongho Jeon ,  Abhijeet Bhorkar

IPC: H04W72/21 ,  H04L5/00 ,  H04W72/23

CPC classification number: H04W72/21 ,  H04L5/0044 ,  H04L5/0082 ,  H04L5/0037 ,  H04L5/0042 ,  H04W72/23 ,  H04L5/0053 ,  H04W16/14

Abstract: Systems, apparatus, user equipment (UE), evolved node B (eNB), computer readable media, and methods are described for scheduling of multiple uplink transmissions in unlicensed spectrum. One embodiment involves receiving, at an eNB, a first uplink scheduling request from a UE, scheduling a plurality of uplink subframes on the unlicensed channel in response to the first uplink scheduling request, and initiating transmission of a first subframe to the first UE in response to the scheduling of the plurality of uplink subframes, wherein the first subframe comprises one or more downlink control indicators (DCIs) allocating the plurality of uplink subframes to the first UE.

公开(公告)号：US11606817B2

公开(公告)日：2023-03-14

申请号：US16321812

申请日：2017-05-10

Applicant: Apple Inc.

Inventor： Jeongho Jeon ,  Abhijeet Bhorkar ,  Seunghee Han ,  Hwan-Joon Kwon

IPC: H04W74/08 ,  H04W74/00 ,  H04L1/1812

Abstract: Devices, methods, user equipment (UE), evolved node B (eNB), and storage media are described suitable for coexistence operations for uplink communications on multiple unlicensed carriers. Various embodiments are implemented in LTE systems with license-assisted access (LAA) associated communications. In one embodiment, a UE processes one or more uplink grants from an eNB scheduling transmissions on multiple unlicensed carriers at a first time, and indicating a first channel access procedure. The UE then selects a first unlicensed carrier and performs the first channel access procedure, and performs a second channel access procedure on a second unlicensed carrier of the multiple unlicensed carriers.

公开(公告)号：US11251907B2

公开(公告)日：2022-02-15

申请号：US16921357

申请日：2020-07-06

Applicant: Apple Inc.

Inventor： Hong He ,  Hwan-Joon Kwon ,  Seunghee Han ,  Abhijeet Bhorkar ,  Jeongho Jeon

IPC: H04L1/16 ,  H04L1/18 ,  H04W74/08 ,  H04L1/00 ,  H04W76/28 ,  H04W16/14 ,  H04W88/08

Abstract: Techniques for contention window size (CWS) adaptation (CWSA) are discussed. One example apparatus can comprise a processor that can receive HARQ messages UEs in response to PDSCH transmissions in one or more reference subframes. The HARQ messages can comprise HARQ-ACK values that denote a HARQ-ACK state for a transport block associated with License Assisted Access (LAA) operation, wherein each of the HARQ-ACK states is one of a DTX state, an ACK state, a NACK state, or an “any” state. The processor can also; determine a metric value for each of the HARQ-ACK states; calculate a CWS adjustment metric based on the determined metric values; increase a CWS to a next higher allowed value when the CWS adjustment metric is greater than or equal to a threshold; and reset the CWS to a minimum allowed value when the CWS adjustment metric is less than the threshold.

公开(公告)号：US20210067996A1

公开(公告)日：2021-03-04

申请号：US16994965

申请日：2020-08-17

Applicant: Apple Inc.

Inventor： Abhijeet Bhorkar ,  Hwan-Joon Kwon ,  Jeongho Jeon ,  Qiaoyang Ye

IPC: H04W24/10 ,  H04L5/00 ,  H04B7/0456 ,  H04B7/06 ,  H04L1/00

Abstract: Techniques for channel state information (CSI) reporting are discussed. One example apparatus at a user equipment can derive, for one or more subframes of a license assisted access (LAA) secondary cell (SCell), one or more channel measurements based on reference signals (e.g., cell-specific reference signals (CRS) or CSI reference signals (CSI-RS)), in those subframes; generate CSI that comprises a channel quality indicator (CQI) based on an average of the one or more channel measurements from multiple subframes comprising a first subframe and a later second subframe, wherein each orthogonal frequency division multiplexing (OFDM) symbol of a second slot of the first subframe is occupied, wherein each of a first three OFDM symbols of the second subframe are occupied, and wherein each OFDM symbol between the first subframe and the second subframe is occupied; and generate a CSI report that indicates the set of CSI parameters.

公开(公告)号：US10862605B2

公开(公告)日：2020-12-08

申请号：US15770853

申请日：2016-04-01

Applicant: Apple Inc.

Inventor： Qiaoyang Ye ,  Hwan-Joon Kwon ,  Seunghee Han ,  Abhijeet Bhorkar ,  Jeongho Jeon

IPC: H04J11/00 ,  H04W16/10 ,  H04W16/14 ,  H04W16/32 ,  H04W74/08

Abstract: A base station for secondary-cell (S-cell) operation in an unlicensed band is subject to listen-before-talk (LBT) rules. The apparatus generates S-cell discovery reference signal (DRS) that includes a primary synchronization signal (PSS) based on a cell ID associated with the base station, a secondary synchronization signal (SSS), a cell-specific reference signal (CRS), and optionally CSI-RS. Solutions are described for generating portions of the DRS to accommodate the placement of the DRS in arbitrary subframes.

公开(公告)号：US10856282B2

公开(公告)日：2020-12-01

申请号：US16072132

申请日：2017-02-16

Applicant: Apple Inc.

Inventor： Fatemeh Hamidi-Sepehr ,  Qiaoyang Ye ,  Hwan-Joon Kwon ,  Huaning Niu ,  Abhijeet Bhorkar

IPC: H04W72/04 ,  H04L5/00 ,  H04W72/12 ,  H04L27/26 ,  H04W24/02 ,  H04W16/14

Abstract: An apparatus for use in an eNB, the apparatus includes circuitry to generate an assignment of one or more interlaces to a UE within a cell managed by the eNB, where the one or more interlaces are selected from a total number of interlaces, and an interlace of the total number of interlaces may include multiple resource blocks spanning within a system bandwidth. The circuitry included in the apparatus is further to encode the assignment by a bit string including one or more bits, which may be a bitmap or an encoding bit string. The circuitry included in the apparatus is further to transmit the bit string to the UE. Other embodiments may also be described and claimed.