| Patent application number | Description | Published |
|---|
| 20090012277 | Process for Preparation of Timosaponin B II - A method for preparation of Timosaponin BII, which uses Chinese traditional medicine Rhizoma Anemarrhenae or fresh rhizoma or fibrous root of | 01-08-2009 |
| 20090164610 | METHOD, GATEWAY, CLIENT, SOFTWARE ARRANGEMENT AND COMPUTER-ACCESSIBLE MEDIUM FOR FACILITATING A HANDOVER BETWEEN A WIRELESS LAN AND A RADIO ACCESS NETWORK - Exemplary embodiments of method, gateway, client, software arrangement and computer-accessible medium are provided for a handover of a client from a local network to an access network. For example, information can be received from the client regarding the client's ability to connect directly to the access network, whereas the client is connected to a local network. A request for the handover of the client and an identification information of the client can be transmitted to the access network. Further, the handover of the client can be initiated from the local network to the access network. | 06-25-2009 |
| 20090238297 | Method For Selecting Subchannel Mode And MIMO Communication System Using The Same - The invention relates to Method for Selecting Subchannel Mode and MIMO Communication System Using the Same. A method for self-adaptively selecting a code modulation sub-channel mode is suitably used in a MIMO communication system that comprises a base station and mobile terminals, wherein the method comprises the steps of: the mobile terminal estimating channel state information thereof, and determining a sub-channel structure most suitable for data transmission thereto, based on the channel state information; the mobile terminal feeding back information on the determined sub-channel structure most suitable for data transmission thereto to the base station; and the base station determining a sub-channel structure used for a down link, based on the information on the sub-channel structure fed back by the mobile terminal. According to the present invention, the subchannel structure in the communication system can be self-adaptively changed according to the actual communication environment, so as to improve the entire communication quality and efficiency. | 09-24-2009 |
| 20100002796 | Adaptive Transmission Method And System For Wireless Communication System - The present invention provides a wireless transmission method and system based on maximum multi-path delay estimation. A wireless transmission method based on an estimation of maximum multi-paths delay, comprising: a communication apparatus involved in wireless communication estimates the maximum multi-paths delay of a currently received frame; the communication apparatus performs a quantization and coding on feedback information related with the estimated maximum multi-paths delay, and then sends the feedback information which has been subjected to the quantization and coding to an opposing communication apparatus which is in wireless communication with the communication apparatus; the opposing communication apparatus recovers the feedback information by demodulating and decoding the feedback information which has been subjected to the quantization and coding; the opposing communication apparatus performs an adaptive adjustment of wireless signals transmitted to the communication apparatus, based on the recovered feedback information. With this method, system parameters can be adaptively adjusted so as to that sufficiently improves the spectrum utilization efficiency of wireless resources (the throughput is increased by about 5%). | 01-07-2010 |
| 20100151871 | Wireless Communication System And Wireless Communication Method - There is provided a method for scheduling users in a multi user-multi input multi output (MU-MIMO) wireless communication system. The MU-MIMO wireless communication system comprises at least one based station and at least one user equipment, the base station is capable of accommodating plural user equipments by precoding based on a codebook, the method comprising: each of the plural user equipments conducting a channel estimation based on a pilot signal transmitted from the base station, to obtain a channel information; determining, based on the channel information, a codeword that results in the maximum signal-noise-ratio (SNR), and a channel quality indictor (CQI) value corresponding to the codeword; and feeding back the codeword and the CQI value to the base station, the base station setting up an active user set that includes at least one user allowed of downlink transmission based on the codewords and the CQI values fed back from the user equipments, so that a predetermined performance metric of the system is maximized. | 06-17-2010 |
| 20100166097 | Wireless Communication System And Wireless Communication Method - There is provided a MIMO wireless communication system, which comprises at least one base station having plural transmitting antennas and at least one user equipment having at least one receiving antennas, the base station being capable of accommodating plural user equipments by precoding based on a codebook, wherein, each of the plural user equipments comprises: a channel estimation unit for conducting a channel estimation based on a pilot signal transmitted from the base station, to obtain a channel information; a codeword determination unit for determining a first codeword that results in the maximum signal-noise-ratio, and at least one second codeword that results in the minimum signal-noise-ratio, based on the channel information; and a transmission unit for feedbacking the first codeword and the second codeword(s) to the base station, the base station is configured to schedule the user equipments based on the first codeword and the second codeword so that a predetermined system performance metric is optimized. | 07-01-2010 |
| 20110037570 | Communication Method for a Radio System and Apparatus and System for Implementing the Method - An apparatus, system and communication method, which is particularly suited for a radio frequency identification system (RFID), wherein a reflection-transmission apparatus is disposed in a radio system and, during a communication process, the reflection and transmission features of reflection-transmission apparatus presented at the radio frequency are changed to introduce a multi-path signal component which changes with time. Consequently, during the communication process, a receiving apparatus receives and combines the multi-path signal component of communication signals and the radio system performs communication by utilizing time diversity effects. The apparatus, system and method provide effective and continued reduction of communication blind spots in the RFID system, thereby improving the overall success rate for the RFID system to read tags and accomplishing a better balance with the overall reading time. | 02-17-2011 |
| 20110171308 | PH-SENSITIVE SOLID PHARMACEUTICAL COMPOSITION FOR ORAL PREPARATION AND PREPARATION METHOD THEREOF - A pH-sensitive solid pharmaceutical composition for oral formulation and preparation method thereof is provided. The solid pharmaceutical composition contains a pharmaceutical active ingredient, a nano-matrix carrier and a pH-sensitive polymer material. | 07-14-2011 |
