Signaling of transmission settings in multi-user systems

摘要

The present invention relates to a transmitting apparatus, a receiving apparatus, a system, a signal, and a method of multi-user transmission, wherein transmission settings are divided into common signal information, containing settings/information relevant for multiple receivers and user stream specific information, containing settings/information relevant only to a related user stream. Furthermore, the common signal information may comprise at least one of a duration of the longest user stream field and multi-user resource allocation field, so that the receivers know the mapping of user streams to receivers.

主权项

1. A transmitting apparatus for performing multi-user transmission to a plurality of receivers, said apparatus being adapted:
a) to divide transmission settings of said multi-user transmission into a common signal information field containing common transmission settings adapted to channel conditions relevant for multiple ones of said receivers, and at least one user stream specific information field containing user stream specific information relevant only to a related user stream, wherein a designation of said receivers is determined from an order of appearance of MAC addresses of said receivers; and b) to convey said common signal information and said user stream specific information in separate dedicated fields of a preamble portion of said multi-user transmission.