Verifying support for requests for transmission parameters in a multi-user scenario

摘要

Link adaptation is supported in a multi-user MIMO environment. In some aspects, a frame including a transmission parameter request (e.g., a null data packet announcement (NDPA) including a modulation and coding scheme (MCS) request (MRQ)) specifies multiple destinations. In some aspects, a decision to transmit a frame specifying multiple destinations is based on whether all of destinations support providing feedback to such a frame. In some aspects, transmission parameter feedback (e.g., MCS feedback (MFB)) including channel estimate information is provided in a case where MFB of type MU is requested.

主权项

1. An apparatus for wireless communication, comprising:
a transceiver configured to receive a plurality of link adaptation indications from a plurality of other apparatuses; and a processor coupled to the transceiver and configured to determine, based on the received link adaptation indications, whether each apparatus of the plurality of other apparatuses has indicated that responses will be provided to requests for at least one transmission parameter, and further configured to generate a frame if the determination indicates that each apparatus of the plurality of other apparatuses has indicated that responses will be provided, wherein the frame comprises a request for the at least one transmission parameter from the plurality of other apparatuses and further comprises identifiers of the plurality of other apparatuses, wherein the transceiver is further configured to transmit the frame.