Abstract:
Aparato y método para determinar la calidad de la llamada (119) en un sistema de comunicación, que comprende un procesador de terminación (201) que determina la terminación de la llamada por el usuario durante una llamada. En respuesta a la detección, el estimador de calidad (203) determina una medición de la calidad de la terminación de la llamada para una calidad de llamada dada a la terminación de la llamada por el usuario. Por ejemplo, se puede determinar una tasa de error en un intervalo de tiempo de duración de entre 10 segundos y 60 segundos antes de la detección de la terminación de la llamada. Un controlador de transmisión (205) transmite entonces la medición de la calidad de la terminación de la llamada a un procesador de calidad de llamada (117). El procesador de calidad de llamada (117) puede procesar estadísticamente las mediciones de la calidad de la terminación de la llamada de una pluralidad de llamadas para evaluar la prestación del sistema de comunicación de telefonía móvil. La correlación de la medición de la calidad de la terminación de la llamada con la terminación de la llamada por el usuario suministra datos que reflejan más exactamente la calidad de la llamada percibida por el usuario.
Abstract:
A wireless data system (200) and a method (300) of communicating digital data to a handheld wireless device (202) are provided. The wireless data system (200) includes a plurality of handheld wireless devices (202) capable of receiving digital data comprised of a first digital data portion and at least one second digital data portion. The wireless data system (200) also includes a wireless network (209) capable of transmitting (318) the first digital data portion to the plurality of handheld wireless devices (202), a data server (212) for creating the digital data, the data server capable of communicating with the wireless network, and at least one broadcast transmitter (215) communicating with the data server, the at least one broadcast transmitter broadcasting (321) the at least one second digital data portion to the plurality of handheld wireless devices. The plurality of handheld wireless devices (202) are capable of receiving and combining (323) the first digital data portion and the at least one second digital data portion.
Abstract:
A base station (105) comprises a notification processor (117) to transmit notification information of calls of a call service to remote terminals. The call service can be a GSM Voice Group Call Service (VGCS). The notification processor (117) comprises a BCCH processor (303) which notifies active calls for the call service to remote terminals in a first set of allocated radio blocks (201, 203) on a broadcast channel. A VGCS processor (307) determines that a new call is initialised, and in response the notification processor (117) replaces a notification for an existing call with a notification for the new call in at least one radio block of the first set of allocated radio blocks (201, 203).
Abstract:
A communication system (100) comprises a first radio network supporting a first air interface standard and a second radio network supporting a second air interface standard. The second radio network comprises a network interface (401) which receives a handover request message from the first radio network to hand over a remote station (101) to the second network. A handover preference processor (405) receives a handover preference message for the remote station (101). The handover preference message comprises a preference indication for a radio network for the remote station (101). A load processor (409) determines a load indication for the second radio network and a load threshold processor (407) determines a handover load threshold for the remote station in response to the preference indication. A handover evaluation processor (403) determines whether to accept the handover in response to a comparison of the load indication and the handover load threshold. The invention may allow improved handovers in multi-air interface standard communication systems.
Abstract:
A communication system (100) comprises a core network (109) for routing data to and from radio networks. A first radio network supports a first air interface standard (e.g. UMTS) and comprises a first controller, such as an RNC (107), which can receive a handover preference message from the core network (109) and which can determine a handover in response to the handover preference message. The second radio network supporting a second air interface standard (e.g. GSM) and comprises a second controller, such as a BSC 111, which can receive the handover preference message from the core network (109) and which can determine a handover in response to the handover preference message. An interlayer handover controller sets a handover preference indication such that the first controller biases handover decisions towards a remote station being supported by the first radio network and the second controller biases handover decisions towards the remote station being supported by the second radio network.
Abstract:
A wireless data system (200) and a method (300) of communicating digital data to a handheld wireless device (202) are provided. The wireless data system (200) includes a plurality of handheld wireless devices (202) capable of receiving digital data comprised of a first digital data portion and at least one second digital data portion. The wireless data system (200) also includes a wireless network (209) capable of transmitting (318) the first digital data portion to the plurality of handheld wireless devices (202), a data server (212) for creating the digital data, the data server capable of communicating with the wireless network, and at least one broadcast transmitter (215) communicating with the data server, the at least one broadcast transmitter broadcasting (321) the at least one second digital data portion to the plurality of handheld wireless devices. The plurality of handheld wireless devices (202) are capable of receiving and combining (323) the first digital data portion and the at least one second digital data portion.
Abstract:
A cellular communication system includes base stations supporting macro cells and with unique cell scrambling codes within a region. The system further includes access points supporting underlay cells and with shared cell scrambling codes within the region. One or more of the access points or base stations comprise transmit means for transmitting an indication of at least a first shared scrambling code to a remote station. The shared scrambling code is shared by a plurality of access points. The remote station is arranged to receive the first shared scrambling code and to determine if a first signal using the first shared scrambling code is received. If the first signal is detected, a handover controller initiates a handover of the remote station to at least a first access point of the plurality of access points sharing the first shared scrambling code.
Abstract:
A communication system comprises functionality for measuring call quality in connection with a user termination of a call. Specifically, a call quality estimator (119) comprises a termination processor (201) which determines a user call termination for a call. In response to the detection, a quality estimator (203) determines a termination call quality measure for a call quality at the user call termination. For example, an error rate in a time interval of duration between 10 seconds and 60 seconds before the detection of the call termination may be determined. A transmit controller (205) then transmits the termination call quality measure to a call quality processor (117). The call quality processor (117) may statistically process the termination call quality measures from a plurality of calls to evaluate performance of the cellular communication system. The correlation of the termination call quality measure with the user call termination provides for data which more accurately reflects the user perceived call quality.
Abstract:
A packet data transmission protocol that uses transmission windows includes a packet control unit (PCU) (4, 8) that transmits (100) blocks of data packets from a first transmission window. A user equipment (UE) (2) sends (102) a negative acknowledgement to the PCU if the packets are not received properly, whereupon the PCU construct (106) a dummy radio link control (RLC) block (60), including at least header information upon event of an established (104) trigger (60) event. The PCU sends (108) the dummy RLC block at a more robust coding rate to prevent a RLC stall condition.