Method, Subscriber Device and Radio Communication System for Transmitting User Data Messages

Abstract

A method is provided for transmitting user data messages from a network element of a radio communication system via at least one transmission channel to at least one subscriber terminal of the radio communication system, whereby the form of the user data messages is announced before the transmission thereof via planning information. The planning information includes a first planning message by which the transmission of the user data messages is announced via a first separate transmission channel, and a second planning message by which description information is transmitted via at least one second transmission channel, the description information indicating the form of the user data messages to be transmitted. The form of the user data messages to be transmitted can include the data type and / or the codification of the user data messages. Announcing the form of the user data messages in the planning information enables the subscriber terminal to only intercept or receive the user data messages that it can actually process, thus enabling energy to be saved during reception and processing.

Description

BACKGROUND OF THE INVENTION [0001] The present invention relates to a method for transmitting user data messages, from a sender to one or more recipients, a subscriber device and a radio communication system. [0002] In the case of many services and applications which are offered in modem mobile radio systems, messages must be transmitted to not just one subscriber, but to two or more subscribers. Such services and applications include, for example, news groups, video conferences, video on demand, distributed applications, etc. [0003] When transmitting the messages to the different subscribers, it is possible to send a copy of the data to each recipient separately. Although this technique is easy to implement, it is unsuitable for large groups. Because the same message is transmitted over N individual connections or unicast connections (N corresponds to the number of recipients) and is therefore sent multiple times over shared connection paths, this method requiring a very high bandw...

AI Technical Summary

Benefits of technology

[0010] According to a method for transmitting user data messages from a network element of a radio communication system over at least one transmission channel to one or more subscriber devices of the radio communication system, the form of the user data messages is announced via planning information before their transmission. In particular, the form in relation to the processing of the user data messages by the subscriber device or subscriber devices is announced in this context. An advantage of such a method is that the subscriber device or devices know from the announcement of the form of the user data messages, even before the user data messages are actually transmitted or received, whether such subscriber device or devices are capable of processing the user data messages in such a way that they are useful to the user of the subscriber device (displaying a picture which is contained in the user data messages, playing an audio file, etc.). As such, on the basis of the planning information, the subscriber device or devices can decide to receive only those user data messages which they are also capable of processing, thereby making it possible to save both resources and energy on the subscriber devices.

[0014] As mentioned above, the subscriber device or subscriber devices can analyze the planning information, particularly the second planning message or the description information which is contained therein relating to the user data messages that have to be transmitted, and therefore may receive or monitor from the second transmission channel, of which there is at least one, only those user data messages which it is, or they are, designed to process. In this way, the processing effort and, therefore, the energy consumption in a subscriber device is restricted.

Problems solved by technology

Although this technique is easy to implement, it is unsuitable for large groups.

A problem may arise here, however, in that not all data types of transmitted multimedia messages can be processed by every subscriber device.

In such a case, energy is wasted for no purpose and the service life of the subscriber device is reduced.

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