Digital interface between analogue rf hardware and digital processing hardware

• US 20050007988A1
• Filed: 02/14/2002
• Published: 01/13/2005
• Est. Priority Date: 02/16/2001
• Status: Abandoned Application

• Current Assignee: Radioscape Limited
• Original Assignee: Radioscape Limited
• Inventors: Udy, Christopher Alfred, Ferris, Gavin Robert
• Application Number:
  US10/468,327
• Publication Number:
  US 20050007988A1
• Time in Patent Office: Days
• US Class Current: 370/349
• CPC Class Codes: H04B 1/0007 wherein the AD/DA conversion occurs at radiofrequency or intermediate frequency stage
• CPC Class Codes: H04B 1/28 the receiver comprising at least one semiconductor device having three or more electrodes

Abstract

A digital interface between analogue RF hardware and digital processing hardware which (a) defines how the analogue RF hardware and digital processing hardware send and receive digital data to one another and (b) is open in order to decouple the design of the analogue RF hardware from the design of the digital processing hardware. The adoption of such an interface will facilitate the uptake of software defined radio (SDR), both as a design-time and run-time technology, as it enables the production of analogue/RF components independently from the digital domain hardware and software.

Claims

1-16. -16. (Cancelled)

17. A method of sending and receiving digital data between an analogue RF hardware and digital processing hardware, comprising the step of:

sending and receiving the data using an open communications protocol such that no custom driver is needed at either the analogue RF hardware or digital processing hardware to control the sending and receiving of data.

18. The method of claim 17 in which the protocol is UDP/IP.

19. The method of claim 17 in which messages are formed using separate packets for content related data, control data and management data.

20. The method of claim 19 in which a packet for content related data uses a header which defines data packing as either sequential IQ signals or a real IF stream.

21. The method of claim 19 in which control and management data packets are re-useable across several different communications standards and use a communications protocol which is independent of any one communications standard.

22. The method of claim 21 in which the messaging protocol is SNMP.

23. The method of claim 17 in which message types are used, said message types selected from the group consisting of:

(a) reception and transmission of content related data;

(b) control and management messages from the digital processing hardware to the analogue RF hardware;

(c) responses from the analogue RF hardware to queries from the digital processing hardware; and

(d) traps generated by the analogue RF hardware.

24. The method of claim 17 which is extensible.

25. The method of claim 17 in which time stamp data is generated to allow use of synchronous as well as asynchronous transports.

26. The method of claim 17 in which the steps of introspection and announcement occur in order to enable dynamic discovery of the capabilities of the analogue RF hardware.

27. The method of claim 17 in which IP endpoint addressing is used to enable antenna arrays to be addressed.

28. The method of claim 17 in which the digital processing hardware supports software defined radio.

29. Analogue RF hardware adapted to send digital data to, and to receive digital data from, digital processing hardware, in which the analogue RF hardware uses an open communications protocol such that no custom driver is needed at the analogue RF hardware to control the sending and receiving of data.

30. Digital processing hardware adapted to send digital data to, and to receive digital data from, analogue RF hardware, in which the digital processing hardware uses an open communications protocol such that no custom driver is needed at the digital processing hardware to control the sending and receiving of data.

31. An apparatus for sending and receiving digital data between an analogue RF hardware and digital processing hardware:

means for sending and means for receiving the data using an open communications protocol such that no custom driver is needed at either the analogue RF hardware or digital processing hardware to control the sending and receiving of data.

32. The apparatus of claim 31 further comprising means for forming messages using separate packets for content related data, control data and management data.

33. The apparatus of claim 31 further comprising means for generating time stamp data to thereby allow use of synchronous as well as asynchronous transports.

34. The apparatus of claim 31 further comprising means for utilizing IP endpoint addressing to thereby enable antenna arrays to be addressed.