Siemens Aktiengesellschaft

Siemens Aktiengesell Schaft

Siemens Aktiengellschaft

Siemens Aktiengesellschsft

Jörg Schniedenharn

Norbert Kroth

David Randall

Christina Gessner

Georgios Papoutsis

Lars Wehmeier

Jürgen Hofmann

Reinhard Koehn

Armin Sitte

Axel Meiling

Jürgen Schindler

Fariba Raji

Frank Wegner

Thomas Gruhn

Agnes Revel

A first base station associated with a first radio cell is used to transmit data packets in a second sequence to at least one subscriber station by at least one first radio channel. The subscriber station sorts out the received data packets into a first sequence in an intermediate storage unit and the base station associated with the first radio cell is used to derive and/or represent status information relating to the content of the intermediate storage unit in a status memory unit. Transmission of the data packets is relayed from the first to the second radio cell and data packets are transmitted by a base station associated with the second radio cell to the subscriber station by at least one other radio channel. The status information is transferred from the base station associated with the first radio cell to the base station associated with the second radio cell.

Method for transmitting packet switched data in a cellular radio communicaton system during cell change

A method and radio communication system for the transmit useful information as a service to several user stations with at least one radio network controller, at least one base station and at least one user station. The radio network controller is connected to an access device in a core network. The useful information is provided to several users as a service, whereby the user stations of the users are informed before the transmission of the useful information. According to the invention, the notification for the user stations of the users at least partly comprises a request for a response and the transmission of the useful information at least partly occurs after receipt of the response.

Method and radio communication system for the transmission of useful information as a service to several user stations

According to a first aspect, there is provided a method for controlling uplink access transmissions in a radio communication system, wherein a user equipment determines a delay time for transmitting a signal on an uplink access channel, wherein the delay time is randomly determined based upon a probability distribution that increases in density with increasing delay. According to a second aspect, there is provided a method for controlling uplink access transmissions in a radio communication system, wherein from a base station of the radio communication system, time variable information is signalled in downlink to user equipments located in an area covered by the base station, wherein the information is used to determine delay times for transmitting signals on an uplink access channel and wherein the information varies based upon a probability distribution which increases in density with increasing time.

Method for uplink access transmissions in a radio communication system

A method for packet-switched transmission of data. A first base station associated with a first radio cell is used to at least partially transmit data packets in a second sequence to at least one subscriber station by at least one first radio channel. The at least one subscriber station sorts out the received data packets into a first sequence in an intermediate storage unit and the base station associated with the first radio cell is used to derive and/or represent status information relating to the content of the intermediate storage unit in a status memory unit. Transmission of the data packets is relayed from the first to the second radio cell and data packets are transmitted by a base station associated with the second radio cell to the at least one subscriber station by at least one other radio channel. The status information is transferred from the base station associated with the first radio cell to the base station associated with the second radio cell.

Method for transmitting packet switched data in a cellular radio communication system during cell change

In a radio communications system having network devices and the at least one subscriber station, each subscriber station has specific capabilities determined by parameter values. Parameters are at least partially combined to form at least one parameter class. A class value is respectively assigned to different combinations of parameter values concerning different parameters within the parameter class. The class value of the parameter class, as well as at least one parameter value, are signaled to at least one network device of the communications system. This reduce the signaling complexity and ensures a high degree of flexibility with regard to the capabilities of the subscriber station(s).

Method for carrying out the network-side recognition of specific capabilities of subscriber stations in a communications system

The transmission of data is controlled in a radio communication system having a hierarchical network structure. A low-hierarchy device transmits load-based signalling to a high-hierarchy device and the high-hierarchy device caries out control of the transmission capacities of the low-hierarchy device based on the load-based signalling.

Method for controlling data transmission in a radio communication system with a hierarchical network architecture

A method transmits data packets in a radio-communication system. A criterion is associated with a data packet received by a radio station, and a data packet which is correctly received is transmitted to another device and/or protocol layer when the criterion has been met.

Method and radio sation for transmitting data packets in a radio-communication system

To transmit data packets between a transmitter and a receiver, the data packets are transmitted in coded from as coding units. The received data packets are stored in coded or uncoded form in the receiver inside a memory. The receiver notifies the transmitter of the capacity utilization of the memory.

Method for transmitting data packets in a communication system and corresponding transmitter and receiver

In a radio communication system with at least one radio network control device, at least one base station is connected to at least one user station by a radio communication interface. The base station(s) and the radio network control device are components of a base station subsystem. The radio network control device is connected to an access device for a core network. The radio network control device and the user station(s) have a service specific key that is preferably valid for several user stations, or in other words, the service specific key is not user specific.

Method and radio communication system for transmitting useful information as a service for several user stations

According to the invention, a message belonging to a protocol is signalled by a base station subsystem (BSS) in a radio communications system to user equipment (UE), said message consisting of at least one message element. The changes to the message elements in comparison to an older version of the message are signalled at the beginning of the message.

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Bonn, Germany

Jörg Schniedenharn