US Patent No. 9,578,648

SYSTEMS AND METHODS TO ENHANCE RADIO LINK PERFORMANCE IN A MULTI-CARRIER ENVIRONMENT


Patent No. 9,578,648
Issue Date February 21,2017
Title Systems And Methods To Enhance Radio Link Performance In A Multi-carrier Environment
Inventorship Ajoy K. Singh, Milpitas, CA (US)
Tarik Tabet, Los Gatos, CA (US)
Sarma V. Vangala, San Jose, CA (US)
Assignee APPLE INC., Cupertino, CA (US)

Claim of US Patent No. 9,578,648

1. A system, comprising:
a macro cell, the macro cell implementing a plurality of network layers, wherein the plurality of network layers comprise,
at least;

a physical layer; and
a media access control (“MAC”) layer; and
a small cell, the small cell implementing at least one of the plurality of network layers;
wherein the MAC layer controls the flow of data packets to and from the physical layer of the macro cell;
wherein the plurality of network layers implemented by the small cell further comprises a MAC layer;
wherein the MAC layer of the small cell coordinates with the MAC layer of the macro cell to control the flow of data packets
to and from the physical layer to the macro cell and to control the flow of data packets to and from the physical layer of
the small cell; and

wherein the MAC layer of the macro cell controls the flow of the data packets to and from the physical layer of the small
cell.