Abstract:
A method in a transmitter station includes: generating payload data for transmission to a receiver station via a plurality of antennae of the transmitter station; selecting a number of transmit streams for transmission of the payload data; selecting respective modulation schemes for each of the transmit streams; according to the modulation schemes and to an active one of (i) a single-encoder mode and (ii) a per-stream encoder mode, generating the number of coded, modulated transmit streams; wherein each coded, modulated transmit stream contains a portion of the payload data; and providing the coded, modulated transmit streams to respective ones of the antennae for transmission to the receiver station.
Abstract:
A wireless communication assembly stores configuration parameter sets for predefined spectral masks, including: a single channel mask for a base channel bandwidth, and defining target power levels for each of a base in-band bandwidth, base transition bandwidths, and a base floor bandwidth; and a bonded channel mask for a multiple of the base channel bandwidth, and defining target power levels for each of a bonded in-band bandwidth equivalent to the sum of the base in-band bandwidth and the base channel bandwidth, and bonded transition and floor bandwidths that are multiples of the base transition and floor bandwidths. A radio controller selects predefined channels each having the base channel bandwidth, for transmitting data to a recipient station; retrieves selected one of the configuration parameter sets based on the number of selected channels; and applies the selected configuration parameter set to data for transmission to the recipient station.
Abstract:
A coplanar waveguide (CPW) apparatus comprises a substrate having a first surface and an opposing second surface. The substrate comprises a metal layer proximate to the first surface. The metal layer comprises a conductive trace comprising a signal line coupled to a launcher element at a first end of the signal line, and a ground plane co-planar with the conductive trace. The ground plane defines a substantially rectangular first region surrounding the launcher element and defining a second region surrounding the signal line, the first and second regions substantially devoid of conductive material. The launcher element has a substantially rectangular shape with a width greater than a width of the signal line at the first end.
Abstract:
A wireless receiver automatic gain control system includes: a coarse amplification subsystem that receives and amplifies a carrier-modulated signal; a demodulator that generates a baseband signal from the amplified carrier-modulated signal; a fine amplification subsystem that amplifies the baseband signal; and a controller connected to the amplification subsystems. The controller: obtains a unified gain value for the amplification subsystems; based on the unified gain value, selects (i) one of a plurality of coarse gain values defining a set of coarse gain steps each spanning a plurality of unified gain steps, and (ii) one of a plurality of fine gain values defining a set of fine gain steps each spanning a single unified gain step; and sets (i) the gain of the coarse amplification subsystem to the selected coarse gain value, and (ii) the gain of the fine amplification subsystem to the selected fine gain value.
Abstract:
A method in a communications device includes: maintaining an association between the communications device and a basic service set identifier; detecting a message at a wireless interface of the communications device; determining whether the message is associated with the basic service set identifier; and when the message is not associated with the basic service set identifier, determining whether to update a timer corresponding to transmission medium availability based on a received signal strength of the message.
Abstract:
A method in a communication system including an access point and a plurality of stations, includes: selecting, at the access point, a quasi-omni-directional beam for use in transmitting and receiving control frames to and from the stations; selecting, at each station, one of a plurality of directional beams for use in transmitting and receiving control frames to and from the access point; at each of the stations, pausing transmission of Request To Send (RTS) control frames responsive to detecting (i) a RTS control frame from the access point to any one of the stations, or (ii) a Clear to Send (CTS) control frame from the access point to any one of the stations; wherein pausing transmission of RTS control frames is for a duration of time provided in the detected RTS control frame or CTS frame.
Abstract:
A method and apparatus for establishing unsolicited block acknowledgements is provided. During a process, at a first wireless device, to associate with a basic service set that includes a second wireless communication device, the first wireless device transmits, via a controller and using a radio: an indication that the first wireless communication device supports block acknowledgements; and at least one common block acknowledgement parameter defining unsolicited block acknowledgement. Thereafter, the first wireless communication device exchanges data with the second wireless communication device according to the at least one common block acknowledgement parameter defining the unsolicited block acknowledgement.
Abstract:
A wireless communications assembly and method for encoding and modulating data for transmission is provided. The method includes receiving primary data to be transmitted to a receiving station; selecting a data rate at which to transmit the primary data; selecting a mode associated with the data rate, the mode defining a modulation scheme and a target code rate; generating encoded data, including modifying an error correcting block format having a predefined code rate to generate the encoded data at the target code rate; and extracting at least a portion of the encoded data for modulation of a carrier signal and transmission to a receiving station.
Abstract:
An antenna assembly includes a support member having opposing first and second surfaces, and a set of electrical contacts; an antenna carried on the first surface of the support member and electrically connected to the set of electrical contacts; a conductive inner ring element carried on the first surface and surrounding the antenna; and a dielectric outer ring element mounted on the first surface and surrounding the conductive inner ring.
Abstract:
A wireless communication assembly includes: a primary support member defining a primary mounting surface with first and second electrical contacts; an antenna, adjacent to primary mounting surface perimeter, and a baseband controller, on the primary support member; primary signal paths between the baseband controller and the first contacts; primary feed lines between the second contacts and the antenna; a secondary support member carrying a radio controller and defining a secondary mounting surface with third electrical contacts and ports adjacent to a perimeter of the secondary mounting surface; secondary signal paths between the third contacts and the radio controller; secondary feed lines between the radio controller and the ports; the secondary mounting surface configured to engage with the primary mounting surface to connect the first contacts with the third contacts, and the second contacts with the ports.