公开(公告)号：US11038944B2

公开(公告)日：2021-06-15

申请号：US16408101

申请日：2019-05-09

Applicant: APPLE INC.

Inventor： Mohamed M. Rehan ,  Rana A. Morsi ,  Ozgur Oyman ,  Vishwanath Ramamurthi

IPC: H04L29/06 ,  H04L29/08

Abstract: Technology to provide improved quality-of-experience-aware multimedia streaming is disclosed. Several types of communications that can be made between clients and servers are described. These communications enable improvements to current approaches that are used to achieve hyper-text transfer protocol (HTTP) adaptive streaming. These messages can be used in conjunction with computer circuitry configured to: determine a bandwidth available to the server for transmitting HTTP adaptive streaming content to a plurality of clients; receive HTTP requests from the plurality of clients for representations offered by the server in a manifest file for the HTTP adaptive streaming; and calculate an availability of each representation that is offered in the manifest file for the server. The availability can be calculated, at least in part, based on the determined bandwidth. The availability of each representation can be communicated from the server to the plurality of clients.

公开(公告)号：US11026147B2

公开(公告)日：2021-06-01

申请号：US16274901

申请日：2019-02-13

Applicant: Apple Inc.

Inventor： Ozgur Oyman

IPC: H04W36/30 ,  H04W88/06 ,  H04W36/00 ,  H04M15/00 ,  H04L12/26 ,  H04W28/02 ,  H04L12/14 ,  H04W4/24 ,  H04W36/08

Abstract: User equipment (UE) includes processing circuitry, where to configure the UE for Single Radio Voice Call Continuity (SRVCC) handover from an LTE network to a legacy network with circuit switched (CS) communications, the processing circuitry is to encode a Session Description Protocol (SDP) message for transmission to a second UE within the LTE network. The SDP message includes a voice codec selection for voice over LTE communication with the second UE and a maximum end-to-end packet loss rate (E2E_MAX_PLR) that can be tolerated by the UE when using the voice codec. The UE decodes an SRVCC handover command from an eNB within the LTE network, the handover command based on at least one packet loss rate (PLR) associated with a packet switched voice communication link between the UE and the second UE exceeding a PLR threshold that is determined based on the E2E_MAX_PLR that can be tolerated by the UE.

公开(公告)号：US10785699B2

公开(公告)日：2020-09-22

申请号：US16366739

申请日：2019-03-27

Applicant: Apple Inc.

Inventor： Alexander Sirotkin ,  Candy Yiu ,  Qian Li ,  Sudeep K. Palat ,  Song Noh ,  Geng Wu ,  Lili Wei ,  Hassan Ghozlan ,  Dawei Ying ,  Ozgur Oyman ,  Thomas Luetzenkirchen ,  Shankar Sudhir Pola ,  Usharani Ayyalasomayajula

IPC: H04L12/701 ,  H04W40/22 ,  H04L12/721 ,  H04L29/08 ,  H04B7/26 ,  H04B7/155 ,  H04W92/12 ,  H04W88/08 ,  H04W80/02 ,  H04L12/751

Abstract: Embodiments of a Next Generation Node-B (gNB) and methods of communication are disclosed herein. The gNB may be configured with a gNB central unit (gNB-CU) and a gNB distributed unit (gNB-DU). The gNB-CU may determine a route for delivery of a data packet to a User Equipment (UE) on an integrated access backhaul (IAB) of relays. The gNB may generate a physical layer (PHY) data packet in accordance with a split between functionality of a packet data convergence protocol (PDCP) layer at the gNB-CU and functionality of a radio link control (RLC) layer at the gNB-DU. The PHY data packet may include the data packet, a PDCP header, an adaptation layer header, an RLC header, a medium access control (MAC) header, and a PHY header. The adaptation layer header may indicate one or more relays included in the route.