Telefonaktiebolaget Lm Ericsson (publ)

Philippe Charas

Stefan E Kallander

Tony Larsson

Annika Jonsson

Andras Valko

Martin Körling

Sten Erik Blomstergren

Mats Eneborg

A telecommunications system and method is disclosed for implementing a Policy Enforcement Point (PEP) for an Internet Service Provider (ISP) at the subscriber premises. This PEP enforces policies with respect to authentication of subscribers, authorization to access and services, accounting and mobility of the subscribers. These policies are defined by the ISP operator in a Policy Decision Point (PDP), which is a server connected to the Internet that communicates with the PEP. In addition, the ISP can supply an encryption key for the PEP and an encryption key for a particular subscriber. Thus, all communications between the subscriber and the PEP, as well as between the PEP and the PDP can be encrypted.

System and method for local policy enforcement for internet service providers

A method and apparatus for providing selective access to a network, between an end device and a network such as the Internet through one or more access network terminating devices includes determining an access capability for each access network terminating device and comparing the access capability with a preferred access capability associated with a user preference. Best access is determined based on a comparison of the capabilities of the access network terminating devices and the preferred capabilities. Once a match is found, one of the access network terminating devices is selected based on the comparison and the end device is configured according to the access capability of the selected one of the access network terminating devices. Access capabilities include, for example, cost of access, coverage area, and QoS. While communicating with the network the end device continues to detect if new access network terminating devices are available. The access capability for each of the new access network terminating devices is determined and compared with the preferred access capability and/or the current access capabilities being provided to the end device. One of the new access network terminating devices can be selected based on the comparison and the end device configured according the access capability of the new access network terminating device.

Method and apparatus for selective network access

A multi-point to multi-point system includes a plurality of multi-point nodes. Each of the multi-point nodes includes a transmitter that broadcasts over at least one sector, a receiver that receives broadcasts over the sectors, a router, and a memory. Sector identifiers corresponding to each sector are stored in the memory and broadcast over their respective sectors. A link routing table is stored in the memory and is used to inform the router of available communication paths for the multi-point node based on receipt of at least one sector identifier from another multi-point node. A root multi-point node that communicates with at least one of the multi-point nodes includes a memory that stores at least one sector identifier. The sector identifier is communicated to at least one of multi-point nodes. A root node link routing table is stored in the memory that includes contents of link routing tables from all of the plurality of multi-point nodes.

Wireless multi-point communication system having automatically-updated sector-based routing capabilities

A Time Division Multiple Access (TDMA) radio communication system, comprising radio access units or radio base stations arranged to provide duplex radio communication with remote radio communication devices in geographically limited areas or cells through a plurality of receive and transmit time slots grouped in frames. The radio communication system is arranged to provide radio communication in a cell through a limited subset of the plurality of receive and transmit time slots of a frame. In a radio communication system comprising a multiple of RF carriers, the system may be arranged to provide radio communication in a cell through a limited subset of said plurality of receive and transmit time slots of frames at different carriers.

Multi-cell TDMA radio communication through limited subsets of time slots

A radio local loop (RLL) system which can automatically reallocate fixed subscriber units to a different radio domain without expending the costly and time consuming efforts needed to manually readjust antennas. By transmitting a code to the fixed subscriber unit, whereby the code identifies a second radio domain, an antenna associated with the fixed subscriber unit automatically adjusts such that said subscriber unit can communicate with the second domain using a radio channel. While the scan angle of the antenna is adjusted, the fixed subscriber unit derives a signal quality value for a number of radio channels. Based on the signal quality values, the RLL system determines whether the second radio domain exhibits superior signal quality characteristics as compared to the first radio domain. If the second radio domain exhibits superior signal quality characteristics than the first radio domain, the fixed subscriber unit is reallocated to the second domain. Further, the fixed subscriber unit automatically performs a dynamic channel selection scheme. This scheme allows the fixed subscriber unit to select the available traffic channel that exhibits the best signal quality characteristics for establishing a connection.

Method and communications system with automatic reallocation of subscriber units

A radio local loop system which uses an improved dynamic channel selection scheme whereby the fixed subscriber units can automatically select the available traffic channel that exhibits the best signal quality characteristics for establishing a connection. The radio system has fixed subscriber units which measure received signals from radio stations and determine a signal quality factor for each received signal. The fixed subscriber units will create and maintain a traffic channel register that stores the frequency, time slot, radio station number, and fixed subscriber unit integer scan angle for each signal. The fixed subscriber units are assigned an available radio channel and antenna scan angle based upon the signal quality.

Method and communications system with dynamically adaptable subscriber units

Dynamic channel allocation for sectorized radio access units of a mobile

An improved feed-forward multi carrier power amplifier architecture is described along with a novel array antenna wherein the improved amplifier may be advantageously put to use. The improved amplifier provides for independent control of unwanted intermodulation products generated in the amplifier. When used in the novel array structure, a separate radiation lobe containing the unwanted intermodulation products may be steered independently from a main radiation lobe. In a cellular base station application, the radiation lobe containing the unwanted intermodulation products may be steered away from the main radiation lobe thereby providing spatial filtering of the unwanted signals. The radiation lobe containing the unwanted intermodulation products may be steered rapidly in time using, for example, a noise like function to provide statistical averaging of the interference in the direction of desired communications.

Method of and apparatus for filtering intermodulation products in a

A radio module for a radio base station of a mobile radio system which transmits and receives radio signals from stationary or moving mobile radio stations over given frequencies. A module comprises an antenna part and a transceiver part of given mechanical construction. Each module of a base station transmits and receives over a given specific frequency which may be different when transmitting and receiving but which is not the same frequency as that used by any other module in the station. A radio base structure is comprised of a plurality of modules, each having its own specific or individual transmitting and receiving frequency and being provided with suppression means which prevent a module from disturbing neighboring modules. A radio base structure having diversity reception is also provided.

Radio module included in a primary radio station, and a radio structure

Radio coverage in closed environments

A repeater system in a communication system including a base station and a mobile unit provides a communications link between the base station and the mobile unit when the mobile unit is located in an environment that is substantially closed off to high radio frequency communication between the base station and the mobile unit. The repeater system has a first linear two-way frequency converter including a high frequency port for two-way coupling to the base station and a low frequency port for two-way coupling to a low frequency signal that is capable of distributing radio frequency power through the closed environment. The low frequency port is connected to a cable which propagates and receives low radio frequency power within the closed environment. The repeater system also includes a first antenna for wireless coupling to the cable, and a second linear two-way frequency converter having a low frequency port connected to the first antenna for two-way coupling to a low frequency signal and a high frequency port for two-way coupling to a signal that is compatible with the high radio frequency signal used by the communications system. A second antenna is connected to the high frequency port of the second linear two-way frequency converter for wireless coupling of the second linear two-way frequency converter to a nearby mobile unit.

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Upplands-Väsby, Sweden

Philippe Charas