Apparatus, system and method of communicating control information in a physical layer protocol data unit (PPDU)
View Patent ↗Some demonstrative embodiments include apparatuses, devices, systems and methods of communicating control information in a Physical Layer Convergence Protocol (PLCP) Protocol Data Unit (PPDU). For example, an apparatus may include logic and circuitry configured to cause a wireless station to generate a PPDU comprising a header field, a payload after the header field, and a control trailer after the payload, the control trailer comprising control information, the header field indicating presence of the control trailer; and to transmit the PPDU over a directional wireless communication band.
1. An apparatus comprising logic and circuitry configured to cause a wireless communication station to:
set two bits in a header (L-Header) of a Physical Layer Protocol Data Unit (PPDU) to indicate presence of a control trailer;
generate the control trailer by encoding control trailer information into a Low Density Parity Check (LDPC) codeword, the control trailer comprising 18 data bytes, the control trailer information comprising channel bandwidth (BW) information;
include the control trailer in the PPDU after a payload of the PPDU; and
transmit the PPDU in a frequency band above 45 Gigahertz (GHz).
2. The apparatus of claim 1 configured to cause the wireless communication station to set a Training Length field in the L-header to a value of “2”.
3. The apparatus of claim 1 configured to cause the wireless communication station to set a Training Length field in the L-header to signal that the control trailer is to be in place of a Training (TRN) field after the payload.
4. The apparatus of claim 1 configured to cause the wireless communication station to modulate the control trailer according to a Directional Multi-Gigabit (DMG) control mode modulation scheme.
5. The apparatus of claim 1 , wherein the control trailer information comprises Multiple-Input-Multiple-Output (MIMO) information.
6. The apparatus of claim 1 , wherein the control trailer information comprises Multi-User (MU) Multiple-Input-Multiple-Output (MIMO) (MU-MIMO) information.
7. The apparatus of claim 1 , wherein the control trailer information comprises information based on a type of the PPDU.
8. The apparatus of claim 1 , wherein the PPDU comprises a control mode PPDU.
9. The apparatus of claim 1 , wherein the PPDU comprises a Request to Send (RTS) or a Clear to Send (CTS).
10. The apparatus of claim 1 , wherein the L-Header comprises a Directional Multi-Gigabit (DMG) header decodable by DMG stations.
11. The apparatus of claim 1 , wherein the PPDU comprises a Directional Multi-Gigabit (DMG) PPDU.
12. The apparatus of claim 1 configured to cause the wireless communication station to transmit the PPDU over a channel bandwidth of at least 4.32 GHz.
13. The apparatus of claim 1 , wherein the wireless communication station comprises an Extended Directional-Multi-Gigabit (EDMG) station (STA).
14. The apparatus of claim 1 comprising a Medium Access Control (MAC), and a Physical Layer (PHY).
15. The apparatus of claim 1 comprising a radio.
16. The apparatus of claim 1 comprising one or more antennas.
17. A product comprising one or more tangible computer-readable non-transitory storage media comprising computer-executable instructions operable to, when executed by at least one processor, enable the at least one processor to cause a wireless communication station to:
set two bits in a header (L-Header) of a Physical Layer Protocol Data Unit (PPDU) to indicate presence of a control trailer;
generate the control trailer by encoding control trailer information into a Low Density Parity Check (LDPC) codeword, the control trailer comprising 18 data bytes, the control trailer information comprising channel bandwidth (BW) information;
include the control trailer in the PPDU after a payload of the PPDU; and
transmit the PPDU in a frequency band above 45 Gigahertz (GHz).
18. The product of claim 17 , wherein the instructions, when executed, cause the wireless communication station to set a Training Length field in the L-header to a value of “2”.
19. The product of claim 17 , wherein the instructions, when executed, cause the wireless communication station to set a Training Length field in the L-header to signal that the control trailer is to be in place of a Training (TRN) field after the payload.
20. The product of claim 17 , wherein the instructions, when executed, cause the wireless communication station to modulate the control trailer according to a Directional Multi-Gigabit (DMG) control mode modulation scheme.
21. The product of claim 17 , wherein the control trailer information comprises Multiple-Input-Multiple-Output (MIMO) information.
22. The product of claim 17 , wherein the control trailer information comprises Multi-User (MU) Multiple-Input-Multiple-Output (MIMO) (MU-MIMO) information.
23. The product of claim 17 , wherein the control trailer information comprises information based on a type of the PPDU.
24. The product of claim 17 , wherein the PPDU comprises a control mode PPDU.
25. The product of claim 17 , wherein the PPDU comprises a Request to Send (RTS) or a Clear to Send (CTS).
26. The product of claim 17 , wherein the L-Header comprises a Directional Multi-Gigabit (DMG) header decodable by DMG stations.
27. The product of claim 17 , wherein the PPDU comprises a Directional Multi-Gigabit (DMG) PPDU.
28. The product of claim 17 , wherein the instructions, when executed, cause the wireless communication station to transmit the PPDU over a channel bandwidth of at least 4.32 GHz.
29. The product of claim 17 , wherein the wireless communication station comprises an Extended Directional-Multi-Gigabit (EDMG) station (STA).