Method for transmitting data in packets in a radio communications system

• US 8,223,702 B2
• Filed: 01/25/2007
• Issued: 07/17/2012
• Est. Priority Date: 02/13/2006
• Status: Active Grant

• Current Assignee: Siemens AG
• Original Assignee: Siemens AG
• Inventors: Klein, Axel, Krause, Jörn, Viering, Ingo, Wimmer, Malgorzata
• Primary Examiner(s): Pham, Chi
• Assistant Examiner(s): Boakye, Alexander
• Application Number:
  US12/279,261
• Publication Number:
  US 20090245186A1
• Time in Patent Office: 2,000 Days
• Field of Search: 370/329, 370/335, 370/256, 370/331, 370/441, 370/345, 370/278, 370/282, 370/341, 370/348, 370/349, 370/431, 370/336, 370/436, 370/277, 455/13.4, 455/206
• US Class Current: 370/329
• CPC Class Codes: H04L 1/16 in which the return channel carries supervisory signals, e.g. repetition request signals
• CPC Class Codes: H04L 1/1607 Details of the supervisory signal
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 2001/0093 Point-to-multipoint

Abstract

The subject matter relates to a method for transmitting data in packets in a radio communications system, according to which the receipt of data packets from at least two terminals is confirmed by a base station of the radio communications. The confirmation of receipt takes place without an overlap in time, using identical resources.

Claims

1. A method for transmitting data in packets via a radio communications system, comprising:

transmitting data packets from at least two terminals to a base station, each terminal using different time intervals of a plurality of time intervals in a divided transmission frame of a data channel in an uplink direction; and

confirming to the at least two terminals, receipt by the base station of the data packets, by sending confirmations of receipt in a control path transmission frame divided by the plurality of time intervals, the confirmations transmitted via a characterized subchannel using an identical signature for the at least two terminals in different time intervals of the control path transmission frame.

2. The method as claimed in claim 1, wherein the data packets of the at least two terminals are transmitted in an identical physical resource without an overlap in time or in a temporally overlaying fashion.

3. The method as claimed in claim 1, wherein the respective time intervals for the transmission of data packets by a radio network controller and/or the base station are assigned to the at least two terminals in a coordinated fashion such that the confirmation of receipt can take place using the identical signature in the different time intervals of the control path transmission frame.

4. The method as claimed in claim 3, wherein the time intervals for transmitting data packets to an identical position in at least two consecutive frames are assigned to at least two terminals.

5. The method as claimed in claim 1, wherein the signatures are orthogonal binary signatures.

6. The method as claimed in claim 5, wherein the orthogonal binary signatures are Hadamard codes.

7. The method as claimed in claim 1, wherein the signatures cause a spreading of the confirmations over a length of transmission of one time interval.

8. A base station of a radio communications system including at least two terminals, comprising:

at least one transmitting/receiving facility

receiving data packets from the at least two terminals in different time intervals of a plurality of time intervals in a divided transmission frame of a data channel in an uplink direction, and

transmitting to the at least two terminals confirmations of receipt of the data packets in a control path transmission frame divided by the plurality of time intervals, the confirmations transmitted via a characterized subchannel using an identical signature for the at least two terminals in different time intervals of the control path transmission frame.

9. The base station as claimed in claim 8, wherein the control facility is configured so as to assign resources to the at least two terminals for the transmission of data packets in the uplink direction and to assign the same resources for the transmission of confirmations in the downlink direction to the at least two terminals.

10. A radio communications system, comprising:

at least two terminals, each including

at least one terminal control facility controlling transmission of data packets using resources, and

a terminal transmitting/receiving facility transmitting data packets in different time intervals of a plurality of time intervals in a divided transmission frame of a data channel in an uplink direction;

at least one base station including

at least one base station transmitting/receiving facility receiving the data packets from the at least two terminals and transmitting to the at least two terminals confirmations of receipt of the data packets, and

a base station control facility controlling transmission of the confirmations of the data packets in a control path transmission frame divided by the plurality of time intervals, the confirmations transmitted via a characterized subchannel using an identical signature for the at least two terminals in different time intervals of the control path transmission frame;

a radio network controller including

at least one controller control facility assigning the resources to the at least two terminals, and

a controller transmitting/receiving facility transmitting assignment of the resources to the at least two terminals and/or the at least one base station.