Patent ID: 9215674
Filing Date: 2015-12-15
Classification: H04B,H04W

Abstract:
1. A method for selecting a transport format in an uplink multiple-input multiple-output (ULMIMO) system, comprising: receiving, by a user equipment (UE), a reference enhanced dedicated channel transport format combination (E-TFC) set and a primary-stream channel quality difference in a dual-stream transmission mode that are sent by a base station; acquiring, by the user equipment according to a primary-stream serving grant (SG) allocated by the base station to the user equipment within a transmission time interval (TTI), a first transmit power offset A when transmit power of the primary stream is obtained according to primary-stream transmit power granted by the base station, acquiring, by the user equipment, when inter-stream interference is considered and a transmit power offset of the primary stream is the first transmit power offset A when the transmit power of the primary stream is obtained according to remaining transmit power, which is calculated according to a limit value of maximum transmit power of the user equipment, calculating, by the user equipment, a second transmit power offset A′ selecting, by the user equipment from the first transport format combination indicator E-TFCI