METHOD AND DEVICE FOR SELECTING TRANSMISSION FORMAT

摘要

The present invention provides a method and an apparatus for selecting a transport format, relates to the communications field, and can determine a transport format of a primary stream and a secondary stream according to a maximum transmit power of a user equipment and a channel quality difference between the primary stream and the secondary stream, thereby ensuring data transmission quality. The invention includes: receiving a transport format parameter of a user equipment sent by a base station, where the transport format parameter of the user equipment includes a primary stream grant value and an association between the primary stream and the secondary stream; determining a maximum transport block length of the primary stream according to a preset value of the maximum transmit power of the user equipment and the association between the primary stream and the secondary stream; determining an actual transport block length of the primary stream according to a size relationship between a theoretical transport block length of the primary stream and the maximum transport block length; and determining a transport block length of the secondary stream according to the actual transport block length of the primary stream and the association between the primary stream and the secondary stream. Embodiments of the present invention are mainly applied to a process of selecting a transport format of uplink data of a user equipment in a multiple-antenna system.