Mediatek Corporation

Shun-Yong Huang

Tsai-Yuan Hsu

Po-Jung Chiu

Chia-Ming Chang

Chih-Shi Yee

Li-Chun Ko

Chen-Feng Liu

Yuan-Chin Wen

Chao-Chun Wang

Li-Wei Chen

I-Cheng Tsai

Shao-Wei Chen

Yu-Ching Liu

Ching-Chia Cheng

Shih-Chang Su

Yu-Che Tsai

Tsung-Han Tsai

Yung-En Hsieh

Tzu-Wei Han

Yen-Wen Yang

Jian-Hsiung Liao

Yi-Chun Chou

Sheng-Yao Chen

Chiu-Yun Ko

Wei-Hung Su

Tsai Yuan Hsu

Tzu-Fan Hsu

Po-Fan Wang

Chao-Peng Wang

A wireless communication device includes a channel state information (CSI) estimation circuit and a transmitter (TX) circuit. The CSI estimation circuit performs CSI estimation for generating CSI data. The TX circuit transmits a first frame at a specific physical layer (PHY) data rate to another wireless communication device. The first frame carries the CSI data. The specific PHY data rate is higher than a basic PHY data rate for normal acknowledgement (ACK) frame transmission.

Wireless communication device using higher physical layer data rate for channel state information transmission and associated wireless communication method

A device is provided, which includes one or more antennas and a circuit. The circuit is configured to receive a packet from a transmitter device through the antennas, and obtain channel-state information from the received packet. The circuit includes one or more filters to filter out or recognize the received packet that complies with one or more preset conditions. The circuit uses the channel-state information of the received packet, which complies with the one or more preset conditions, to estimate a status of a channel between the transmitter device and the device.

Noise filtering of channel-state information in wireless communication

The present invention provides a wireless communication method of an access point. The wireless communication method comprises the steps of: establishing a cache table comprising a plurality of reference MAC and corresponding PMKs and reference PMKIDs; receiving an association request from a station; reading a MAC address of the station and a PMKID from the association request; if the MAC address of the station and the PMKID do not match items of the cache table, performing a calculation on the PMKID to obtain an original PMKID; determining if the original PMKID matches any one of the reference PMKIDs within the cache table; and if the original PMKID matches one reference PMKID within the cache table, determining that the reference MAC recorded in the cache table and the MAC address belong to the same station.

Random media access control address with fast reconnection mechanism

The present invention provides an electronic device including a first antenna, a second antenna and a wireless communication chip. The wireless communication chip is configured to control the first antenna to broadcast a packet, control the second antenna to receive the packet broadcasted from the first antenna, and determine channel state information according to the packet received by the second antenna.

Channel state information measurement method and associated wireless communication chip and electronic device

The present invention provides a wireless communication method of an electronic device, wherein the wireless communication method includes the steps of: building a link with peer electronic device; receiving downlink data information from the peer electronic device; referring to the downlink data information to determine wake and doze information of the electronic device; and transmitting the wake and doze information of the electronic device to the peer electronic device.

Wireless communication method with adaptive power control mechanism and associated circuitry within electronic device

A multi-radio device includes two or more radio subsystems coupled to a packet traffic arbitration (PTA) module. The PTA module receives a first request for radio communication from a first radio subsystem, where the first request indicates a first usage duration. After granting the first request, the PTA module receives a second request for radio communication from a second radio subsystem. The second request indicates a second usage duration. The PTA module sends a rejection of the second request to the second radio subsystem, where the rejection indicates a remaining time of the first usage duration.

Low-power coexistence mechanism based on packet traffic arbitration

A communication method applied to an communication device comprising M first type antenna following a first communication standard and N second type antennas following a second communication standard, M and N are positive integers. The communication method comprises: (a) measuring usage time of the second type antennas; and (b) controlling a number of the antennas that the communication device use according to the usage time of the second type antennas.

Communication method and communication device

A method of method of allocating a protection duration of a radio subsystem for a transmitting station of a wireless communication system includes transmitting a frame to at least one receiving station of the wireless communication system, wherein the proprietary frame indicates the protection duration allocated for the radio subsystem.

Method of allocating protection duration of radio subsystem to intra-BSS stations using frames with network allocation vector

A communicating method of a communication device for connecting to a first network and a second network includes: when a rescheduling condition is reached, rescheduling a wake up period of the communication device for the first network at least according to a wake up period of the communication device for the second network; wherein the wake up period of the communication device for the first network is rescheduled by making the communication device a master device in the first network through adjusting a preference parameter of the first network.

Communicating method and associated electronic device

A method of distance measurement for a first wireless communication device of a wireless communication system includes receiving a frame from a second wireless communication device of the wireless communications system; determining a signal strength of the received frame; and obtaining a round trip time (RTT) and estimating a distance between the first wireless communication device and the second wireless communication device according to the signal strength of the received frame.

Method of distance measurement between wireless communication devices in wireless communication system

A method of handling a radio resource for a first communication device in a wireless communication system includes transmitting at least one notification frame to a second communication device, to indicate a radio resource rearrangement; applying the radio resource rearrangement; determining at least one radio resource threshold according to the radio resource rearrangement; receiving a packet from the second communication device and determining whether the second communication device applies the radio resource rearrangement according to the received packet and the at least one radio resource threshold; and performing a specific operation when determining the second communication device does not apply the radio resource rearrangement, to communicate with the second communication device via the rearranged radio resources.

Method of handling radio resource

The present invention provides a method of bypassing data and a mobile device to establish a shared data path via a shared memory of the mobile device between network modules. The network modules may exchange data packets via the shared memory, and a processing unit of the mobile device enters into a sleep mode when the network modules exchange the data packets via the shared memory SM. The power consumption of the mobile device is therefore reduced.

Method of bypassing data and mobile device using the same

A wireless communication calibration system has a radio chipset, an analog circuit set, and a calibration path. The radio chipset has a transmitter and a receiver. The analog circuit set is external to the radio chipset and coupled to the transmitter, and receives an output signal of the transmitter and generates a transmission signal according to the output signal. The calibration path is external to the radio chipset and coupled to the analog circuit set, and guides an input signal to the receiver, wherein the input signal is derived from the transmission signal, and a first delay is calculated after the input signal is received by the receiver.

Wireless communication calibration system and associated method

A method for performing seamless transmission control for an electronic device and an associated apparatus are provided, where the method includes the steps of: sending a request frame carrying a fragment identification (ID) to trigger a responder in a wireless network system to initiate retransmission corresponding to the fragment ID, wherein the fragment ID indicates beginning of a remaining portion within a plurality of fragments of data being sent from the responder to the electronic device; and receiving at least one response frame sent from the responder, for utilizing the remaining portion within the plurality of fragments of the data, wherein the remaining portion within the plurality of fragments of the data is obtained from the at least one response frame.

Method for performing seamless transmission control with aid of request carrying fragment ID, and associated apparatus

A method for frame rate control in a transmitter of a wireless communications system comprises generating a frame and a first information corresponding to a first expiration time of the frame by a frame generating module; handling the frame according to the first expiration time by a driver module; and informing the frame generating module an adjusting information according to a first pre-determined rule by the driver module.

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Taipei, Taiwan

Shun-Yong Huang