Abstract:
A wireless communications system and methods therein uses information, such as frame sequence numbers to improve DCCH or SCH power control. The system includes a base transceiver station (BTS) (14) with a frame type determinator (32) for determining whether the recovered data frames are good, erased, or non-transmitted data frames. A selector distribution unit (SDU) (16) includes a frame type verification processing block (36) for verifying that the frame type determinations made by the frame type determinator are correct based on the sequence numbers from received good data frames, and a power control block (38) for transmitting subscriber device power control information based on frame type determination verifications made by the verification processing block.
Abstract:
Método para transferir datos diferibles en un sistema (100) de comunicaciones inalámbricas, que comprende: recibir (204) una instrucción para transferir datos diferibles; determinar (206) que una interfaz aérea está congestionada; y diferir (220) una transferencia de los datos diferibles; caracterizado por: posteriormente a la posposición de la transferencia de los datos diferibles, determinar (206) que la interfaz aérea no está congestionada; caracterizado por: como respuesta a la determinación de que la interfaz aérea no está congestionada, determinar (214) un periodo de tiempo de posposición durante el cual la transferencia de datos diferibles se difiere adicionalmente; y al producirse la expiración del periodo de tiempo de posposición, transferir los datos diferibles.
Abstract:
A packet data communication system that includes a mobile station having a jitter buffer and a wireless infrastructure having a base site serving the mobile station controls a size or dept of the jitter buffer. The size or depth is controlled based on a number of retransmissions of erroneously received data employed by the system, a radio frequency load of the base site, and a round trip time period for acknowledgments and corresponding retransmissions. The jitter buffer size may be further controlled by use of a supplemental channel to expedite the transmission of data and thereby fill up the jitter buffer more quickly and by reduction of a waiting period for retransmission of the acknowledgments, thereby reducing the round trip time period.
Abstract:
A communication system and method assigns, such as by marking headers of wireless communication packets, packet classification data to packets to define at least one of the following classes: a control signaling class, such as in-band signaling and control packets, a voice class, a data retransmission class, OAMP class and a data class and wherein each class represents a different transmission priority over a backhaul link. For wireless communication packets associated with the control signaling class and the voice class, the method and apparatus assigns each of the wireless communication packets with additional drop precedent data wherein the drop precedence data defines a further packet drop priority within the control signaling class and the voice class. The apparatus and method drops a queued classified wireless communication packet based on a priority level of assigned drop precedent data and based on the packet classification data.
Abstract:
A wireless communications system and methods therein uses information, such as frame sequence numbers to improve DCCH or SCH power control. The system includes a base transceiver station (BTS) ( 14 ) with a frame type determinator ( 32 ) for determining whether the recovered data frames are good, erased, or non-transmitted data frames. A selector distribution unit (SDU) ( 16 ) includes a frame type verification processing block ( 36 ) for verifying that the frame type determinations made by the frame type determinator are correct based on the sequence numbers from received good data frames, and a power control block ( 38 ) for transmitting subscriber device power control information based on frame type determination verifications made by the verification processing block.
Abstract:
A wireless communications system and methods therein uses information, such as frame sequence numbers to improve DCCH or SCH power control. The system includes a base transceiver station (BTS) ( 14 ) with a frame type determinator ( 32 ) for determining whether the recovered data frames are good, erased, or non-transmitted data frames. A selector distribution unit (SDU) ( 16 ) includes a frame type verification processing block ( 36 ) for verifying that the frame type determinations made by the frame type determinator are correct based on the sequence numbers from received good data frames, and a power control block ( 38 ) for transmitting subscriber device power control information based on frame type determination verifications made by the verification processing block.