Ralink Technology (Singapore) Corporation PTE. LTD Patent applications |
Patent application number | Title | Published |
20120093025 | METHOD AND SYSTEM FOR DETECTING PACKET TYPE - It is therefore an object of the present invention to provide a method for detecting different packet type. The method comprises, determining whether the rate of a received packet corresponds to a predetermined rate, derotating the bits of a symbol in the received packet, obtaining an energy different of the symbol at different axes, and determining the type of the received packet according to the energy difference. | 04-19-2012 |
20120039315 | METHOD AND SYSTEM TO DETECT PACKETS OF DIFFERENT FORMATS - A method and system in accordance with the present invention presents a new packet structure and an improved method for detecting the packet. The method and system comprise adding an additional field to the packet structure to allow for a sufficient time to process a very high throughput (VHT) signal field; and enabling the detection of the VHT signal field of the packet structure. The VHT signal field is distinguishable from other signal fields and the VHT signal field allows for a backward compatibility with other devices. | 02-16-2012 |
20120009961 | METHOD AND APPARATUS FOR BEAMFORMING IN A WIRELESS COMMUNICATION SYSTEM - Varying embodiments of the present invention describes a method and apparatus for beamforming in a wireless communication system. A first embodiment is a method for beamforming in a wireless communication system, the system comprising a transmitter and a receiver. The method comprises initiating beamforming on a communication channel between the transmitter and the receiver wherein the communication channel comprises at least two transmit chains, controlling the beamforming by mapping the data stream(s) to the at least two transmit chains and controlling the scaling of the at least two transmit chains within a transmit power constraint. | 01-12-2012 |
20120002652 | METHOD AND SYSTEM FOR IMPROVING THE EFFICIENCY OF PACKET TRANSMISSION IN A MULTI-USER WIRELESS COMMUNICATION SYSTEM - A method and system utilized in a wireless communication system transmitting and receiving a multi-user packet is disclosed. The communication system includes a transmitter and a plurality of users in communication therewith. The method and system comprise determining a lowest coding scheme for transmitting the packet; and deriving a coding rate for the efficient transmission of the packet from a standard coding rate by de-puncturing bits in the packet. A system and method in accordance with the present invention provides for an efficient utilization of packet length, and improves the reliability by improving SNR, by lowering the MCS, un-puncturing, and/or repetition. More efficient packed data rates are also provided and both Tx and Rx compute parameters independently. | 01-05-2012 |
20120002622 | METHOD FOR SIGNAL SPACE PARTITION AND ASSIGNMENT AND APPARATUS USING THE SAME - A method and system utilized in a wireless communication system is disclosed. The communication system includes a transmitter and one or more of stations in communication therewith. The method and system comprise encoding a data assignment of each of the data streams associated with a packet into a plurality of bits, wherein the plurality of bits are within a header of the packet within the transmitter. The method and system also includes decoding the plurality of bits by the one or more stations to allow the one or more stations to obtain the appropriate data stream. | 01-05-2012 |
20110274003 | METHOD AND SYSTEM OF OPERATING A MULTI-USER SYSTEM - A method and system is disclosed for grouping the multiple stations connected to an access point (AP). The system and method comprise sending a sounding packet to a plurality of stations, wherein the stations may be all or part of the stations that are located within the range of the AP. The stations that receive the sounding packets respond to the AP, and the AP determines the channel state information (CSI) from the responses. According to the CSI, the AP divides the multiple stations into several groups. According to an embodiment of the present invention, a confirmation step is performed to each group of stations, respectively. The AP sends a second sounding packet to each group of stations, and verifies the CSI between each station group by group. Therefore, the method and system provides for monitoring the validation of each group by periodically sending sounding packets to each group. | 11-10-2011 |
20110274002 | METHOD AND SYSTEM OF OPERATING A MULTI-USER SYSTEM - A method and system is disclosed for grouping the multiple stations connected to an access point (AP). The system and method comprise sending a sounding packet to a plurality of stations, wherein the stations may be all or part of the stations that are located within the range of the AP. The stations that receive the sounding packets respond to the AP, and the AP determines the channel state information (CSI) from the responses. According to the CSI, the AP divides the multiple stations into several groups. According to an embodiment of the present invention, a confirmation step is performed to each group of stations, respectively. The AP sends a second sounding packet to each group of stations, and verifies the CSI between each station group by group. Therefore, the method and system provides for monitoring the validation of each group by periodically sending sounding packets to each group. | 11-10-2011 |
20110237213 | FRONT-END RECEIVER CIRCUIT WITH MULTIPLE PATHS WHICH ARE SIMULTANEOUSLY ACTIVE AND RECEIVER SYSTEM USING THE SAME - A front end receiver is disclosed. The front end receiver comprises a plurality of transmissive signal paths originating from one signal input, a plurality of switching mechanisms; and at least one path of the plurality of transmissive signal paths including a first amplifier coupled to a first input port of each of the plurality of switching mechanisms. The front end receiver also comprises at least another path of the plurality of transmissive signal paths including a second amplifier coupled to a second input port of each of the plurality of switching mechanisms. The receiving subsystem coupled to the output port of each switching mechanism. Each of the receiving subsystems controls a switching mechanism to select the path that is optimal for radio reception depending on the strength of signal being received. | 09-29-2011 |