METHOD FOR TRANSMITTING SERVICE DATA IN TELECOMMUNICATION SYSTEMS WITH WIRELESS TELECOMMUNICATION BASED ON A PREDEFINED RADIO INTERFACE PROTOCOL BETWEEN TELECOMMUNICATION DEVICES, ESPECIALLY VOICE DATA AND/OR PACKET DATA IN DECT SYSTEMS

• US 6,963,751 B1
• Filed: 05/06/1999
• Issued: 11/08/2005
• Est. Priority Date: 05/06/1998
• Status: Expired due to Fees

• Current Assignee: Gigaset Communications GmbH (Gigaset AG)
• Original Assignee: Siemens AG
• Inventors: Kruk, Anton, Kordsmeyer, Martin
• Primary Examiner(s): Hudspeth, David
• Assistant Examiner(s): SMITH, SHEILA B
• Application Number:
  US09/674,797
• Time in Patent Office: 2,378 Days
• Field of Search: 455/450, 455/550.1, 455/426.1, 370/524, 370/474, 370/338
• US Class Current: 455/466
• CPC Class Codes: H04L 69/324 in the data link layer [OSI layer 2], e.g. HDLC
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04M 1/72505 Radio link set-up procedures
• CPC Class Codes: H04M 2250/08 home cordless telephone systems using the DECT standard
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• CPC Class Codes: H04W 28/065 using assembly or disassembly of packets

Abstract

To transmit service data in telecommunication systems with wireless telecommunication based on a predefined radio interface protocol between telecommunication devices, especially voice data and/or packet data in DECT systems, with enhanced utilization of the bandwith of the telecommunication system and at a greater transmission rate, service data units to be transmitted are transported by radio cascaded (a cascade arrangement) in protocol data units adapted to the radio interface protocol. The protocol data units in each case contain as many information fields; configured especially as length indicators for specifying the respective service data length; as there are service data units or fragments of service data units contained in the respective protocol data unit. In addition, each information field contains an extension (a reference) in the form of a concatenated list whether further service data units or further fragments of service data units follow in the respective protocol data unit.

Claims

1. A method for transmitting service data in telecommunication systems with wireless telecommunication based on a predefined radio interface protocol between telecommunication devices, comprising the steps of:

transmitting protocol data, predefined by said radio interface protocol, wherein said protocol data comprises a plurality of protocol data units;

transmitting said service data within said protocol data, wherein the service data comprises a plurality of service data units, and wherein each service data unit corresponds at least in part to a free part of a respective protocol data unit;

allocating first information items to the protocol data units, wherein the first information items specify a respective service data length of corresponding service data units, said first information items each having a value that is different from “

zero”

;

allocating second information items to the protocol data units, wherein the second information items specify a respective end of corresponding service data units;

allocating third information items to the protocol data units, wherein the third information items specify a respective non-end of corresponding service data units; and

allocating a fourth information item, corresponding to the value “

zero”

of the service data length to a respective end protocol data unit, together with a respective second information item in said end protocol data unit when said transmission of service data is ended at least temporarily.

2. The method as claimed in claim 1, further comprising the step of transmitting said service data in a protected manner.

3. The method as claimed in claim 1, further comprising the steps of arranging a first information item in front of a respective service data unit, and arranging a second or third information item at the end of the respective service data unit.

4. The method as claimed in claim 1, wherein said second information item consists of the value “

0”

of a bit and said third information item consists of the value “

1”

of the bit.

5. The method as claimed in claim 1, wherein said data in telecommunication system is voice or packet data in DECT systems.

6. The method as claimed in claim 1, wherein said service data is ended at least temporarily within said protocol data unit.