公开(公告)号：US10917903B2

公开(公告)日：2021-02-09

申请号：US15324530

申请日：2015-08-07

Applicant: Apple Inc.

Inventor： Sergey Panteleev ,  Sergey Sosnin ,  Alexey Vladimirovich Khoryaev ,  Debdeep Chatterjee

IPC: H04W72/12 ,  H04W76/14 ,  H04W72/04

Abstract: Embodiments of a User Equipment (UE) and methods for device-to-device (D2D) communication are generally described herein. In some embodiments, the UE may transmit a scheduling assignment (SA) control message that indicates time transmission intervals (TTIs) to be used for a D2D transmission of a data payload by the UE to a receiving UE during an SA cycle. The UE may transmit the data payload during the TTIs indicated in the SA control message. The TTIs used for the transmission of the data payload may be included in a group of D2D TTIs reserved for D2D transmissions. In some embodiments, a time resource pattern for transmission (T-RPT) may indicate a sequence of TTI indexes for the TTIs used for the transmission of the data payload.

公开(公告)号：US10903964B2

公开(公告)日：2021-01-26

申请号：US16488153

申请日：2018-03-22

Applicant: Apple Inc.

Inventor： Youngjun Kwak ,  Debdeep Chatterjee ,  Hong He ,  Gang Xiong ,  Honglei Miao

IPC: H04L5/00 ,  H04W72/04

Abstract: Embodiments may be directed to techniques to determine physical downlink control channel (PDCCH) candidates to assign to a user equipment (UE) based on one or more aggregation levels, each PDCCH candidate in a highest aggregation level of the one or more aggregation levels assigned by a random distribution over a whole control channel element (CCE) domain, and each PDCCH candidate in one or more non-highest aggregation levels of the one or more aggregation levels assigned a random distribution over one or more CCEs utilized by PDCCH candidates of the highest aggregation level. Embodiments also include selecting at least one of the PDCCH candidates to utilize to send downlink control information (DCI) to the UE, and causing transmission of the DCI to the UE via the PDCCH candidates selected.

公开(公告)号：US10779333B2

公开(公告)日：2020-09-15

申请号：US16141202

申请日：2018-09-25

Applicant: Apple Inc.

Inventor： Qiaoyang Ye ,  Debdeep Chatterjee ,  Bharat Shrestha ,  Marta Martinez Tarradell ,  Dmitry Dikarev

IPC: H04W74/08 ,  H04L5/00 ,  H04W76/27 ,  H04L29/06

Abstract: Provided herein is design of early data transmission in wireless communication system. An apparatus for a user equipment (UE) includes a processor configured to: encode a physical random access channel (PRACH) sequence from a plurality of PRACH sequence for transmission via a PRACH to perform a random access procedure, wherein indication of support of early data transmission (EDT) that is transmitted during the random access procedure is based on at least one of the plurality of PRACH sequences, higher layer signaling, PRACH resources, PRACH formats, and a payload from the UE; and send the PRACH sequence to a radio frequency (RF) interface; and the RF interface to receive the PRACH sequence from the processor. Design of random access response (RAR) is also disclosed herein.

公开(公告)号：US20200220630A1

公开(公告)日：2020-07-09

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 ,  Youngjun Kwak

IPC: H04B17/318 ,  H04W72/04 ,  H04B7/08 ,  H04W24/08 ,  H04L5/00 ,  H04L25/02 ,  H04B17/24 ,  H04B17/382

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.