CPC H04B 7/0695 (2013.01) [H04B 7/0417 (2013.01); H04B 7/0452 (2013.01); H04B 7/0456 (2013.01); H04B 7/0617 (2013.01); H04B 7/10 (2013.01)] | 20 Claims |
1. A hybrid beamforming (HB) negotiation method comprising:
receiving, by an initiator from at least a first responder, at least one frame including capability information of the first responder via a first subfield of the at least one frame indicating polarization capability information, a second subfield of the at least one frame indicating whether HB is supported during Multi-User Multiple-Input and Multiple-Output (MU-MIMO) transmissions and a third subfield of the at least one frame indicating whether the HB is supported during Single-User Multiple-Input and Multiple-Output (SU-MIMO) transmissions;
setting up, by the initiator, the HB in accordance with the included capability information, for at least one upcoming Multiple-Input and Multiple-Output (MIMO) transmission between the initiator and at least the first responder, wherein the setting up of the HB for the at least one upcoming MIMO transmission between the initiator and at least the first responder includes transmitting, by the initiator to at least the first responder, another frame including antenna configuration information, wherein the antenna configuration information is signaled on a per-responder basis; and
performing, by the initiator with at least the first responder, baseband HB training and feedback,
wherein the capability information includes: (1) a first one-bit indicator in the second subfield indicating whether the HB is supported during the MU-MIMO transmissions and (2) a second, separate one-bit indicator in the third subfield indicating whether the HB is supported during the SU-MIMO transmissions.
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