Nokia Corporation

Veijo V&auml;nttinen

Jussi Rajala

The invention relates to a method for connection establishment and a radio system relaying packet traffic. A terminal informs the system that it wishes to transmit data. The network part receives the message and allocates default radio resources and informs the allocated resources to the terminal. The terminal sends a first control message to inform the terminal's radio path characteristics. According to the solution of the invention, when allocating the default amount of radio resources to the terminal, the network part is arranged to reserve one or more radio blocks for the terminal's control messages. When the terminal sends the network part information about its radio path characteristics, it is arranged to inform in the message if there are additional characteristics. In that case, the terminal sends a second control message comprising information about its radio path characteristics.

Method for connection establishment in a radio system relaying packet-switched traffic

A method comprising transmitting a set of data blocks, receiving said set of data blocks, checking whether the transfer of the received data blocks has succeeded or failed; acknowledging, at specific intervals, the received data blocks by a bitmap. A bit of the bitmap corresponds to at least one transferred data block, and the value of the bit indicates the success or failure of the data transfer. Data blocks, the transfer of which has failed according to the bitmap, are re-transmitted. The method comprises determining a set of acknowledgement algorithms, each of which comprising a method for forming a bitmap of the received data blocks; maintaining information on the number of those data blocks, which have not been successfully received or the reception of which has not been acknowledged; initiating one of said acknowledgment algorithms by selecting the acknowledgement algorithm according to said number of data blocks. The acknowledgement functions can at any given instant be adapted to the temporary transfer situation.

Growing community of inventors

Espoo, Finland

Veijo Vänttinen

Growing community of inventors

Espoo, Finland

Veijo V&auml;nttinen

Veijo Vänttinen