Virtualized physical layer adapted for EHF contactless communication
A Physical Layer (PHY) of a host system of an electronic device may be implemented as a contactless PHY (cPHY) for extremely high frequency (EHF) contactless communication and the operation of EHF transmitters (TX), receivers (RX) and transceivers (EHF-XCVR) in an extremely high frequency integrated circuit (EHF IC) of the electronic device. The Host-cPHY translates logical communications requests from the Link Layer (LINK) into hardware-specific operations to affect transmission or reception of signals over an EHF contactless link. The Link Layer (LINK) may also be optimized as a contactless Link Layer (cLINK) for EHF contactless communication. A virtualized contactless Physical Layer (VcPHY) may comprise a contactless Physical Layer (Host-cPHY), and a contactless Link Layer (cLINK) for coupling a conventional Link Layer (LINK) with the contactless Physical Layer (Host-cPHY). Multiple data streams may be transported over the EHF contactless link over a range of frequencies.
1. A system comprising:
a first Standards-based Data Link Layer (LINK) that operates according to a Standards' specification;
a contactless Physical layer (cPHY) coupled to the LINK, wherein the cPHY is operative to translate the Standards' specification associated with the first LINK to a format suitable for contactless communication over a contactless extremely high frequency (EHF) link; and
a contactless EHF IC coupled to the cPHY and comprising at least one transceiver (EHF-XCVR) for contactlessly communicating data with a reciprocal contactless EHF IC associated with another system, wherein the contactless EHF IC processes data according to the format suitable for contactless communication, and wherein the cPHY translates communications requests from the first LINK into hardware-specific operations to affect transmission, reception, or both transmission and reception of signals over the contactless EHF link via the at least one EHF XCVR.
2. The system of claim 1 , wherein the cPHY is a first cPHY, the system further comprising:
a second Standards-based Data Link Layer (LINK) that operates according to another Standards' specification; and
a second contactless Physical layer (cPHY) coupled to the second LINK and the contactless EHF IC, wherein the second cPHY is operative to translate the other Standards' specification associated with the second LINK to the format suitable for contactless communication, and wherein the second cPHY translates communications requests from the second LINK into hardware-specific operations to affect transmission, reception, or both transmission and reception of signals over the contactless EHF link via the at least one EHF XCVR.
3. The system of claim 1 , wherein the format splits a data stream received at the first LINK into multiple data streams that are suitable for contactless communication via the contactless EHF IC.
4. The system of claim 1 , wherein first LINK is a USB standards link.
5. The system of claim 1 , wherein the first LINK is a DisplayPort link.
6. The system of claim 1 , wherein the first LINK and the cPHY are associated with a host.
7. An apparatus for communicating with a Standards-based Data Link Layer (LINK) that operates according to a Standards' specification, the apparatus comprising:
an integrated circuit comprising:
a contactless LINK (cLINK) coupled to the LINK;
a contactless Physical layer (cPHY) coupled to the cPHY, wherein the cLINK and the cPHY are operative to abstract the Standards' specification associated with the LINK to a format suitable for contactless communication over a contactless extremely high frequency (EHF) link; and
contactless EHF circuitry coupled to the cPHY and comprising at least one transceiver (EHF-XCVR) for contactlessly communicating data with a reciprocal contactless EHF IC associated with another apparatus, wherein the contactless EHF IC processes data according to the format suitable for contactless communication, wherein the cLINK and the cPHY are operative to optimize transmission, reception, or transmission and reception of signals over the contactless EHF link via the at least one EHF-XCVR.
8. The apparatus of claim 7 , wherein the Standards' specification is selected from the group consisting of Display Port, Ethernet, HDMI, PCIe and USB.
9. The apparatus of claim 7 , wherein the cLINK is operative to perform at least one of discovering, configuring and maintenance functions that are directed towards enabling and maintaining a contactless link.
10. The apparatus of claim 7 , wherein the cLINK is operative to perform at least one of polling, beaconing, and security verification functions.
11. The apparatus of claim 7 , wherein the cLINK and the cPHY are operative to optimize transmission, reception, or transmission and reception of signals over the contactless EHF link via the at least one EHF-XCVR for at least one of power and performance.