Abstract:
A method and apparatus for multiplexing higher-layer packets (110) into a single lower layer packet (112) is described herein. There exists an optimal frame size for a given bit error rate (BER). The optimal frame size provides the best trade off between frame size and capacity. The BER for a transmission media (205) is constantly monitored and the lower-layer packet size (112) is adjusted dynamically based on the BER.
Abstract:
La presente invención provee un método para asignar a través de una pluralidad de estaciones base fuente de una infraestructura de soporte de comunicación inalámbrica celular un identificador de solicitud de recursos temporal a un dispositivo de comunicación inalámbrica para tener acceso a una estación base objetivo; el método incluye identificar una lista de identificadores de solicitud de recursos temporales asociados con la estación base objetivo para uso por uno o más dispositivos de comunicación inalámbrica, en donde la lista incluye un subconjunto de uno o más identificadores de solicitud de recursos temporales de tiempo parcial cuya asignación respectiva a un agrupamiento correspondiente de una o más estaciones base fuente, en un tiempo particular, es rotada entre más de uno de la pluralidad de agrupamientos correspondientes de una o más estaciones base fuente; la presente invención además permite la asignación de un identificador de solicitud de recursos temporal a un dispositivo de comunicación inalámbrica para tener acceso a una estación base objetivo, donde un identificador correspondiente de los identificadores de solicitud de recursos temporales es asignado a un dispositivo de comunicación inalámbrica particular, donde el identificador de solicitud de recursos temporal incluye una limitación de uso correspondiente a intervalos de tiempo de comunicación particulares durante los cuales el identificador de solicitud de recursos temporal puede ser utilizado con la estación base objetivo.
Abstract:
The present invention provides for a method for allocating by a plurality of source base stations of a cellular wireless communication support infrastructure a temporary resource request identifier to a wireless communication device for accessing a target base station. The method includes identifying a list of temporary resource request identifiers associated with the target base station for use by one or more wireless communication devices, wherein the list includes a subset of one or more part time temporary resource request identifiers whose respective assignment to a corresponding grouping of one or more source base stations at a particular time is rotated between more than one of the plurality of corresponding groupings of one or more source base stations. The present invention further provides for allocating a temporary resource request identifier to a wireless communication device for accessing a target base station, where a corresponding one of the temporary resource request identifiers is allocated to a particular wireless communication devices, where the temporary resource request identifier includes a limitation of usage corresponding to particular communication time intervals during which the temporary resource request identifier can be used with the target base station.
Abstract:
Logic circuitry (409) constantly monitors a transmitter (410) to determine if the transmitter (410) is idle. Logic circuitry (409) suppresses all NAKs until data and other channel information is not being transmitted by the transmitter (410) and RF resources are not scarce. Additionally, logic circuitry (409) suppresses all NAKs until a predetermined number of NAKs has been buffered by the logic circuitry (409). More particularly, logic circuitry (409) determines when a number of NAKs will sufficiently fill an over-the-air frame. Once the predetermined number of NAKs has been collected, the logic circuitry (409) will generate the appropriate NAKs.
Abstract:
The present invention provides for a method for allocating by a plurality of source base stations of a cellular wireless communication support infrastructure a temporary resource request identifier to a wireless communication device for accessing a target base station. The method includes identifying a list of temporary resource request identifiers associated with the target base station for use by one or more wireless communication devices, wherein the list includes a subset of one or more part time temporary resource request identifiers whose respective assignment to a corresponding grouping of one or more source base stations at a particular time is rotated between more than one of the plurality of corresponding groupings of one or more source base stations. The present invention further provides for allocating a temporary resource request identifier to a wireless communication device for accessing a target base station, where a corresponding one of the temporary resource request identifiers is allocated to a particular wireless communication devices, where the temporary resource request identifier includes a limitation of usage corresponding to particular communication time intervals during which the temporary resource request identifier can be used with the target base station.
Abstract:
The present disclosure provides for a method for allocating by a plurality of source base stations of a cellular wireless communication support infrastructure a temporary resource request identifier to a wireless communication device for accessing a target base station. The method includes identifying a list of temporary resource request identifiers associated with the target base station for use by one or more wireless communication devices, wherein the list includes a subset of one or more part time temporary resource request identifiers whose respective assignment to a corresponding grouping of one or more source base stations at a particular time is rotated between more than one of the plurality of corresponding groupings of one or more source base stations.
Abstract:
In a CDMA/WCDMA telecommunication system, a MS (Tx 302) transmits a preamble or access request on the control channel to request a traffic channel. If the access request is received at the base station (Rx306) while a demodulator associated with the base station is demodulating a message already received (404), the base station can transmit an acknowledgement (406) to the MS. The acknowledgment can be transmitted either when the demodulator is free or immediately, if the acknowledgment indicates when the demodulator will become free for the next message (408). A communication channel is reserved by this method of acknowledgment so that the MS does not have to continually transmit access requests.
Abstract:
A method and a system for scheduling requests generated for a plurality of mobile devices in a communication network (100) has been disclosed. The requests are generated for a transmission opportunity. The method includes computing a sort metric (302) for each request, based on an information update. A lead-time is then computed (304) with respect to a drop-dead time for each request, based on the sort metric for a time slice. The drop-dead time for a given time slice is the time before which scheduling has to be done so that data can be transmitted during the given time slice. Each request may be considered (306) for allocation in the time slice before the beginning of a next time slice, based on the lead-time.
Abstract:
In a wireless network, a device monitors (310) at least one parameter that indicates collision status in the network; compares (320) the at least one parameter to a predefined control frame threshold that is based on a criterion other than packet-size; and activates (330) a control frame feature in the device for sending a control frame prior to data transmission, when the at least one parameter exceeds the control frame threshold. In an 802.11 network, the control frames are RTS (request-to-send) and CTS (clear-to-send) frames. The parameters being monitored can include: a number of acknowledgement and RTS frames detected from a hidden terminal, when the device is in a backoff state; a number of retransmission attempts by the device; and a collision rate determined and transmitted by another device in the wireless network to which the device intends to send data.
Abstract:
At least one transmission condition associated with making a transmission of pre-cache data over a transmission leg ( 112 or 114 ) of a network is obtained. A priority for transmitting the pre-cache data is determined using the transmission condition.