Abstract:
Media access control is provided for an ultra-wide band medium. The media access control may employ a peer-to-peer network topology. The media access control may employ a reduced addressing scheme. Concurrent ultra-wide band channels may be established through the use of a pulse division multiple access channelization scheme. Multiple media access control states may be defined whereby each state may be associated with one or more of different channel parameter state information, different duty cycles, and different synchronization status
Abstract:
An apparatus and method for wireless communications supports a periodic scan for wireless devices. The periodic scan includes a plurality of scans spaced apart in time. The phase of the periodic scan is changed in response to one of the wireless devices being detected in one of the scans.
Abstract:
Un procedimiento para programar la transmisión de datos de entrada múltiple, salida múltiple, multiusuario, MU-MIMO, en un sistema de comunicación inalámbrico, comprendiendo el procedimiento la siguiente secuencia de etapas: determinar (401) una pluralidad de estaciones en un conjunto de servicios básicos, BSS, de un punto de acceso, AP; determinar (402) datos almacenados en memorias intermedias para cada estación de la pluralidad de estaciones; agrupar (403) la pluralidad de estaciones en una pluralidad de grupos, con las estaciones de un grupo teniendo características similares; ordenar (405) la pluralidad de grupos para transmisiones basadas en las características de y un historial de transmisión para estaciones; distribuir (404) tiempo de transmisión a las estaciones en un grupo; realizar (406) un sondeo para el grupo basado en el orden; realizar (407) la transmisión de MU-MIMO para el grupo hasta que se cumpla una primera condición (408), en el que la primera condición incluye al menos uno de un tiempo de transmisión distribuido para la transmisión de MU-MIMO que haya expirado y las memorias intermedias para el grupo que se estén vaciando; cuando se cumple la primera condición (408), determinar a continuación si se cumple una segunda condición (409), en la que la segunda condición incluye al menos uno de datos nuevos que han sido almacenados en memorias intermedias por el AP y todos los datos almacenados en memorias intermedias que han sido transmitidos; y cuando no se cumple la segunda condición (409), repetir la realización (406) del sondeo y la realización (407) de la transmisión de MU-MIMO para un grupo siguiente en base a dicho orden hasta que se cumpla la segunda condición.
Abstract:
Systems and methods for wireless communications are disclosed. More particularly, aspects generally relate to an apparatus for wireless communications. The apparatus generally includes an interface for communicating with a plurality of wireless nodes via a plurality of antennas, and a processing system configured to determine a power state of each of the plurality of wireless nodes, and change from a first antenna mode used for communicating with the wireless nodes using a first number of spatial streams to a second antenna mode used for communicating with the wireless nodes using a second number of spatial streams, based on the determined power states of the wireless nodes
Abstract:
Un procedimiento para comunicaciones inalámbricas, que comprende: recibir (215, 225, 325, 420, 520, 1105), mediante un dispositivo de comunicación inalámbrica (115, 210, 310, 410, 510, 701, 915), un parámetro de tiempo de aire esperado (610, 630, 635, 640) para un punto de acceso (105, 205, 305, 405, 505, 801, 1005) en el que el parámetro de tiempo de aire esperado es una fracción de tiempo de aire estimada para una clase de acceso para la comunicación entre el dispositivo de comunicación inalámbrica y el punto de acceso; y determinar (235, 335, 430, 530, 1110) si usar el punto de acceso para comunicaciones basándose, al menos en parte, en la fracción de tiempo de aire estimada.
Abstract:
A method of saving power in a wireless network can include determining a plurality of stations associated with an AP. The AP can create station groups using group selection logic. Notably the group selection logic is transparent to the plurality of stations. A plurality of TIMs can then be sent each TIM allowing only one station group access to a channel during a predetermined time interval such as a beacon interval. In another method a station can determine its sleep duration based on at least one of first information from the TIM to generate random sleep duration second information regarding previous operation of the station and third information regarding a status of the station. The first second and third information can include the number of stations associated with the AP and having buffered data based on the TIM historical collisions and power status.
Abstract:
Some aspects include a method of associating electronic devices for communicating data. The method includes receiving a message on a first device indicating that a second device is discoverable and pairable. The method further includes determining whether the first device is pairable, transmitting a pairing response to the second device based on the determination that the first device is pairable, and pairing the first device to the second device in response to the received message and the determination that the first device is pairable. For example, some aspects include devices such as headsets, watches, and medical devices configured to use such methods for communicating data.
Abstract:
A duty cycle scheme for wireless communication employs three or more duty cycle levels. In some aspects, a wireless device may continually scan for signals in an active state associated with a first duty cycle, periodically scan for signals during a periodic state associated with a second duty cycle, and periodically scan for signals during a standby state associated with a third duty cycle. Here, the second duty cycle may be lower than the first duty cycle and the third duty cycle may be lower than the second duty cycle. In some aspects the timing of different states may be correlated. In some aspects each wireless in a system may independently control its duty cycle states.
Abstract:
A system and method to implement synchronous channel timing are disclosed. The method comprises establishing a session time interval. In addition, the method comprises establishing a first time interval within the session time interval for transmitting a first data packet.