Abstract:
A radiocommunication system supports high throughput rates over an air interface. An access network interface, e.g., between a base station and base station controller, conveys information between the base station and the rest of the terrestrial system. Techniques are provided to adjust transmission rates over the air interface based on loading of the access network. Techniques are also provided to control bandwidth allocation over the access network interface and distribute call blocking/delay percentages when there is an imbalance between the capacity of the air interface and the access network interface.
Abstract:
The present invention relates to the reuse of a control channel in a distributed cellular radio communication system. At least one physical channel, the so-called physical control channel, in the radio communication system is used for transferring logical control channels. According to the present invention, the physical uplink control channel can be reused with respect to logical control channels comprising an access request. The physical downlink control channel can be reused with respect to logical control channels comprising a message that access is granted to a mobile station or a message that someone requests contact with a mobile station. According to the invention, the physical uplink control channel and/or the physical downlink control channel is reused. This means that more connections per time unit may be established in the radio communication system.
Abstract:
A method and apparatus for controlling an amount of downlink power to be applied in each downlink transmission in a macro diversity radio system. Downlink power level is controlled in response to a quality measurement of a corresponding uplink. In accordance with exemplary embodiments, a path gain or a carrier-to-interference ratio of an uplink is measured at a base station in an active set, and subsequently used to proportionally govern a downlink transmission power level for a corresponding downlink. In such a fashion, each downlink handling a mobile station maintains a desired level of robustness, while avoiding introduction of unnecessary system interference.
Abstract:
Un procedimiento llevado a cabo por una estación base inalámbrica (10) para determinar cuándo utilizar dúplex completo en dicha estación base inalámbrica (10) para comunicar en una red de comunicación inalámbrica (1; 1'), en el que dicho procedimiento comprende las etapas de: estimar (S10) la influencia, sobre estaciones base inalámbricas vecinas (20, 30), de utilizar dúplex completo en dicha estación base inalámbrica (10); decidir (S20) si utilizar o no dúplex completo en dicha estación base inalámbrica (10), en base a dicha influencia estimada.
Abstract:
Un metodo y un dispositivo inalambrico para administrar un portador eps, un metodo y una estacion de radio base para establecer parametros de un portador si o un portador lu, asi como un metodo y un segundo nodo de red para admlnlstrar un portador eps, el dispositivo inalambrico envia al segundo nodo de red, una solicitud para configurar el portador eps para un servicio, la solicitud esta asociada con un nivel requerido de una conectividad para el servicio, el nivel requerido se refiere a la probabilidad de mantener la conectividad hacia un primer nodo de red, el segundo nodo de red recibe ademas el nivel requerido de la conectividad para el servicio, el segundo nodo de red envia, a una estacion de radio base, una solicitud para establecer parametros del portador s1 o el portador lu, tambien se describen los correspondientes programas de ordenador y productos de programas de ordenador.
Abstract:
A method and a wireless device (110) for managing an EPS bearer, a method and a radio base station(120) for setting parameters of an S1 bearer or an Iu bearer as well as a method and a second network node (150) for managing an EPS bearer are disclosed. The wireless device (110) sends, to the second network node (150), a request for setting up the EPS bearer for a service. The request is associated with a required level of a connectivity for the service. The required level relates to likelihood of maintaining the connectivity towards a first network node (140). The second network node (150) further receives the required level of the connectivity for the service. The second network node (150) sends, to a radio base station(120), a request for setting parameters of the S1 bearer or the Iu bearer. Corresponding computer programs and computer program products are also disclosed.
Abstract:
A method of communicating control information in systems that support multiple modulation schemes for communicating voice or data and control information. To provide backward compatibility dedicated control channels use the modulation scheme used in current systems, for example GMSK modulation scheme. Traffic channels and associated control channels use linear modulation schemes that have the same symbol rate. The modulation scheme of the associated control channel uses a reduced signal set of the modulation scheme used for traffic channels. Also, an in-band signalling procedure is used to indicate to a receiving station the modulation type, channel coding and speech coding used for a transmitted burst.