Abstract:
An adaptive transmission scheme of the channel environment in the multi-antenna wireless transmission system can raise the spectrum use rate and power efficiency of the communication system. Compared with traditional single antenna input and single antenna output, the channel environment in MIMO wireless communication system is more complex. When the terminal is moving, the different types of channels between terminal and base station can be gone through and then its capacity can be changed more largely. Embodiments of the disclosure are directed to systems that transmit high speed data by way of a plurality of transmitting and/or receiving antennae, and particularly to a transmission scheme in different channel environments in a multi-antenna wireless transmission system.
Abstract:
An adaptive transmission scheme of the channel environment in the multi-antenna wireless transmission system can raise the spectrum use rate and power efficiency of the communication system in fast. Comparing with the traditional single antenna input and single antenna output, the channel environment in MIMO wireless communication system is more complex. When the terminal is moving, the different types of channels between terminal and base station can be gone through and then its capacity can be changed more largely. It is characterized in: at first, obtaining the statistical channel information at the receiving end using the result of channel estimation; then, quantizing and encoding the obtained statistical channel information to get feedback bit information and send the feedback bit information to the transmitting end through a feedback channel; thereby using statistical information, the sending end calculates link self-adapting control parameters, which are used for controlling coding modulation and sending the pre-code; the sending end obtains the digital base band transmission signal using a characteristic mode transmission method and a random virtual space selection transmission method, and the receiving end carries out self-adapting receiving by the same parameters.
Abstract:
FIG. 1 is a front elevation view of an ear sampler showing the new design; FIG. 2 is a back elevation view thereof; FIG. 3 is a left-side view thereof; FIG. 4 is a right-side view thereof; FIG. 5 is a top plan view thereof; FIG. 6 is a bottom plan view thereof; FIG. 7 is a perspective view thereof; FIG. 8 is another perspective view thereof; FIG. 9 is yet another perspective view thereof with the end cap attatched; and, FIG. 10 is another perspective view thereof. The broken lines depict portions of the article that form no part of the claimed design.
Abstract:
FIG. 1 is a perspective view of an ear spoon showing the new design; FIG. 2 is another perspective thereof; FIG. 3 is a front elevation view thereof; FIG. 4 is a back elevation view thereof; FIG. 5 is a left-side view thereof; FIG. 6 is a right-side view thereof; FIG. 7 is an enlarged top plan view thereof; and, FIG. 8 is an enlarged bottom plan view thereof. The broken lines depict portions of the article that form no part of the claimed design.
Abstract:
FIG. 1 is a front elevation view of an ear sampler showing the new design; FIG. 2 is a back elevation view thereof; FIG. 3 is a left-side elevation view thereof; FIG. 4 is a right-side elevation view thereof; FIG. 5 is a top plan view thereof; FIG. 6 is a bottom plan view thereof; FIG. 7 is a top, front, left perspective view thereof; and, FIG. 8 is bottom, rear, right perspective view thereof. The equal-length broken lines depict portions of the ear sampler that form no part of the claimed design.