Patent ID: 11967684
Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 4:
5. A remote radio unit for a cellular base station adapted for outdoor deployment, the remote radio unit comprising:
electronic circuits including a cellular transceiver circuit;
a remote radio unit housing enclosing the electronic circuits for mounting the remote radio unit in an outdoor location on a tower or support post where the remote radio unit is exposed to solar radiation, the remote radio unit housing including cable connectors to connect the remote radio unit to a remotely located control unit of the cellular base station; and
one or more antennas or antenna elements enclosed within the remote radio unit housing;
one or more flexible, thin-film solar cells integrated with the remote radio unit housing to convert solar radiation into electrical energy; and
wherein the flexible, thin-film solar cells comprise organic polymer solar cells that are transparent to RF signals transmitted or received by the transceiver circuit.