Data transmission device with a data transmission channel for the transmission of data between data processing devices

• US 7,552,257 B2
• Filed: 12/18/2003
• Issued: 06/23/2009
• Est. Priority Date: 01/27/2003
• Status: Expired due to Fees

• Current Assignee: Intel Corporation
• Original Assignee: Infineon Technologies AG
• Inventors: Sellar, David, Hein, Werner, Jennings, David, Becker, Burkhard
• Primary Examiner(s): Myers; Paul R
• Application Number:
  US10/543,570
• Publication Number:
  US 20070006029A1
• Time in Patent Office: 2,014 Days
• Field of Search: 710/22, 710/100, 710/107, 370/342
• US Class Current: 710/100
• CPC Class Codes: G06F 13/28 using burst mode transfer, e.g. direct memory access DMA, cycle steal G06F13/32 takes precedence
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters

Abstract

The present invention provides a data processing apparatus having at least one dedicated data processing device (10) of a first type, a central data processing device (4) for controlling dedicated data processing devices (10, 12, 14), at least one data transmission channel (16) for transmitting data between the data processing devices (4, 10, 12, 14) and a data transmission device (6) for transmitting data between the data processing devices via the at least one data transmission channel (16) in a manner dependent on data transmission parameters, the data transmission parameters which are assigned to the at least one dedicated data processing device (10) of the first type being generated by the at least one dedicated data processing device (10) of the first type.

Claims

1. A data processing apparatus for use in a component of a universal mobile telecommunications system (UMTS) having:

a plurality of data processing devices comprising UMTS peripheral elements, the plurality of data processing devices including a central data processing device and a set of dedicated data processing devices, the set of dedicated data processing devices including a first dedicated data processing device of a first type the central data processing device configured to provide control signals to at least one of the set of dedicated data processing devices;

at least one data transmission channel configured to provide data transmission between the plurality of data processing devices; and

a data transmission device configured to cause the transmission of data between the plurality of data processing devices via the at least one data transmission channel in a manner dependent on data transmission parameters, wherein at least some of the data transmission parameters are generated by the first dedicated data processing device;

wherein the first dedicated data processing device includes a RAKE receiver;

wherein the data transmission device is a direct memory access (DMA) data transmission device and the at least one data transmission channel is a DMA channel; and

wherein the data transmission parameters include a quantity of data, a source address and a destination address of the quantity of data moved.

2. The data processing apparatus as claimed in claim 1, wherein the first dedicated data processing device has a local data memory configured to store data to be transmitted.

3. The data processing apparatus as claimed in claim 1, wherein the central data processing device includes an internal data memory configured to store data transmitted to the central data processing device by the dedicated data processing devices.

4. The data processing apparatus as claimed in claim 3, wherein the internal data memory of the central data processing device has a size that is a multiple of a size of a local data memory of the first dedicated data processing device, the local data memory configured to store data to be transmitted.

5. The data processing apparatus as claimed in claim 4, wherein the internal data memory includes memory areas having a size of one time slot, and the local data memory of the first dedicated data processing device includes memory areas having a size of 1/10^th of a time slot.

6. The data processing apparatus as claimed in claim 1, wherein the data transmission parameters generated by the first dedicated data processing device change rapidly, and other data transmission parameters change slowly.

7. The data processing apparatus as claimed in claim 1, further comprising a central data transmission parameter memory configured to store data transmission parameters.

8. The data processing apparatus as claimed in claim 1 wherein the first dedicated data processing device includes a local data transmission parameter memory configured to store the data transmission parameters.

9. The data processing apparatus as claimed in claim 1, wherein the central data processing device comprises a digital signal processor.

10. A data processing apparatus having:

a plurality of data processing devices including a central data processing device and a set of dedicated data processing devices, the set of dedicated data processing devices including a first dedicated data processing device of a first type and a second dedicated data processing device of a second type, the central data processing device configured to provide control signals to at least one of the set of dedicated data processing devices;

at least one data transmission channel configured to provide data transmission between the plurality of data processing devices; and

a data transmission device configured to cause the transmission of data between the plurality of data processing devices via the at least one data transmission channel in a manner dependent on data transmission parameters, wherein at least some of the data transmission parameters are generated by the first dedicated data processing device, and wherein data transmission parameters corresponding to the second dedicated data processing device are generated by the central data processing device;

wherein the first dedicated data processing device includes a RAKE receiver;

wherein the data transmission device is a direct memory access (DMA) data transmission device and the at least one data transmission channel is a DMA channel; and

wherein the data transmission parameters include a quantity of data, a source address and a destination address of the quantity of data moved.

11. The data processing apparatus as claimed in claim 10, wherein the central data processing device stores the data transmission parameters corresponding to the second dedicated data processing device in a central data transmission parameter memory.

12. The data processing apparatus as claimed in claim 11 wherein the first dedicated data processing device includes a local data transmission parameter memory configured to store the data transmission parameters.

13. The data processing apparatus as claimed in claim 12, wherein the data transmission device is configured to read out the data transmission parameters generated by the first dedicated data processing device from the local data transmission parameter memory and to read out the data transmission parameters corresponding to the second dedicated data processing device from the central data transmission parameter memory for the purpose of controlling the data transmission.

14. The data processing apparatus as claimed in claim 11, wherein the first dedicated data processing device stores the data transmission parameters generated therein in the central data transmission parameter memory.

15. The data processing apparatus as claimed in claim 10, wherein the second dedicated data processing device has a local data transmission parameter memory configured to store at least some data transmission parameters.

16. The data processing apparatus as claimed in claim 15, wherein the data transmission device is configured to read out data transmission parameters from a local data transmission parameter memory of the first dedicated data processing device and to read out data transmission parameters from the local data transmission parameter memory of the second dedicated data processing device.

17. The data processing apparatus as claimed in claim 12 wherein the local data transmission parameter memory and the central data transmission parameter memory have normal memory elements and shadow memory elements.

18. The data processing apparatus as claimed in claim 10, wherein the second dedicated data processing device includes a channel decoder and a transmission module.