System and Method for Providing Security in a Wireless Communications System

• US 20120039185A1
• Filed: 02/18/2011
• Published: 02/16/2012
• Est. Priority Date: 08/12/2010
• Status: Abandoned Application

• Current Assignee: Futurewei Technologies Incorporated (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Futurewei Technologies Incorporated (Huawei Investment & Holding Co., Ltd.)
• Inventors: Chen, Bin
• Application Number:
  US13/030,814
• Publication Number:
  US 20120039185A1
• Time in Patent Office: Days
• US Class Current: 370/245
• CPC Class Codes: H04W 12/03 Protecting confidentiality, e.g. by encryption
• CPC Class Codes: H04W 12/041 Key generation or derivation
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

A system and method for providing security in a wireless communications system are provided. A method for securing information includes producing secured information by applying a sequence to radio resource allocation information; and transmitting the secured information to a communications device. The radio resource allocation information includes a location of a radio resource allocated to a communications device.

Claims

1. A method for device operations, the method comprising:

producing secured information by applying a sequence to radio resource allocation information, wherein the radio resource allocation information comprises a location of a radio resource allocated to a communications device; and

transmitting the secured information to the communications device.

2. The method of claim 1, wherein the sequence comprises a binary sequence, and wherein applying a sequence comprises applying the sequence to the radio resource allocation information using a binary function.

3. The method of claim 2, wherein the binary function comprises a binary exclusive-OR function.

4. The method of claim 1, wherein producing secured information comprises:

applying the sequence to the radio resource allocation information, thereby producing the secured information; and

computing an error check for the secured information,

wherein transmitting the secured information comprises transmitting the secured information and the error check.

5. The method of claim 1, wherein producing secured information comprises:

computing an error check for the radio resource allocation information; and

applying the sequence to the radio resource allocation information and the error check, thereby producing the secured information,

wherein transmitting the secured information comprises transmitting the secured information and the error check.

6. The method of claim 1, further comprising transmitting the sequence to the communications device.

7. The method of claim 6, wherein transmitting the sequence comprises transmitting a corresponding sequence that corresponds to the sequence to the communications device.

8. The method of claim 1, wherein the sequence is applied to a subset of the radio resource allocation information.

9. The method of claim 8, wherein the subset is contiguous.

10. The method of claim 8, wherein the subset is discontiguous.

11. A method for device operations, the method comprises:

generating securing information;

applying the securing information to radio resource allocation information, thereby producing secured information, wherein the radio resource allocation information comprises a location of a radio resource allocated to a communications device; and

transmitting the secured information to the communications device.

12. The method of claim 11, further comprising transmitting the securing information to the communications device.

13. The method of claim 11, further comprising transmitting information corresponding to the securing information to the communications device.

14. The method of claim 11, wherein the securing information comprises an encryption key.

15. The method of claim 14, wherein applying the securing information comprises encrypting the radio resource allocation information with the encryption key.

16. The method of claim 11, wherein the securing information comprises mapping information.

17. The method of claim 16, wherein applying the securing information comprises mapping the radio resource allocation information based on the mapping information.

18. The method of claim 11, wherein the securing information comprises a signaling channel.

19. The method of claim 18, wherein transmitting the securing information comprises transmitting the secured information to the communications device over the signaling channel.

20. The method of claim 18, wherein the signaling channel is selected from a plurality of signaling channels.

21. The method of claim 11, wherein the securing information comprises a transform.

22. The method of claim 21, wherein applying the securing information comprises transforming the radio resource mapping information based on the transform.

23. The method of claim 11, wherein the securing information is unique for the communications device.

24. The method of claim 11, wherein the securing information is unique for a plurality of communications devices.

25. A communications controller comprising:

an information generate unit configured to generate securing information for a communications device;

a radio resource allocate unit configured to allocate a radio resource to the communications device, thereby producing radio resource allocation information;

a secure unit coupled to the information generate unit and to the radio resource allocate unit, the secure unit configured to apply the securing information to the radio resource allocation information; and

a transmitter coupled to the secure unit, the transmitter configured to transmit the applied radio resource allocation information to the communications device.

26. The communications controller of claim 25, wherein the securing information comprises a sequence, and wherein the secure unit comprises an exclusive-OR unit applying the sequence to the radio resource allocation information.

27. The communications controller of claim 25, further comprising an error check unit coupled to the radio resource allocate unit, the error check unit configured to generate error checking information.

28. The communications controller of claim 27, wherein the radio resource allocation information is secured prior to generation of the error checking information.

29. The communications controller of claim 27, wherein the error checking information is generated prior to the securing of the radio resource allocation information.