COMMUNICATING REFERENCE AND DATA INFORMATION IN A WIRELESS NETWORK

• US 20150131620A1
• Filed: 01/22/2015
• Published: 05/14/2015
• Est. Priority Date: 02/08/2000
• Status: Active Grant

• Current Assignee: IPR Licensing Incorporated (InterDigital, Inc.)
• Original Assignee: IPR Licensing Incorporated (InterDigital, Inc.)
• Inventors: Hoffmann, John E., Nelson, George Rodney, Proctor, James A., Rouphael, Antoine J.
• Granted Patent: US 9,780,930 B2
• Time in Patent Office: Days
• US Class Current: 370/335
• CPC Class Codes: H04B 1/707 using direct sequence modulation
• CPC Class Codes: H04B 2201/70701 featuring pilot assisted reception
• CPC Class Codes: H04L 5/0046 Determination of how many bits are transmitted on different sub-channels
• CPC Class Codes: H04L 7/041 using special codes as synchronising signal

Abstract

A mobile device may generate reference bits. The mobile device may also produce a frame to send in an uplink transmission having two portions selectively with the reference bits or data bits.

Claims

1. A method performed by a mobile device, the method comprising:

generating, by a processor of the mobile device, first reference bits and second reference bits;

producing, by the mobile device, a portion of a frame to send in an uplink transmission, wherein the portion of the frame includes a first portion and a second portion;

wherein the first portion includes the first reference bits and data bits;

wherein the second portion includes the second reference bits without data bits;

wherein alternating elements of the second portion include reference bits and elements between the alternating elements do not include reference bits; and

sending, by the mobile device, the portion of the frame.

2. The method of claim 1, wherein the first reference bits and the second reference bits are pilot bits.

3. The method of claim 1, wherein a predetermined number of data elements are between reference elements of the first portion.

4. The method of claim 1, wherein the reference and non-reference bit elements of the second portion are time multiplexed.

5. The method of claim 1, wherein at least one of the first reference bits are derived from an orthogonal code.

6. The method of claim 1, wherein the first reference bits are derived from a first sequence and the second reference bits are derived from a second sequence.

7. The method of claim 1, wherein the frame is a Code Division Multiple Access (CDMA) frame.

8. A method performed by a network device, the method comprising:

receiving, by the network device, a portion of a frame from a mobile device, wherein the portion of the frame includes a first portion and a second portion;

wherein the first portion includes first reference bits and data bits;

wherein the second portion includes second reference bits without data bits; and

wherein alternating elements of the second portion include reference bits and elements between the alternating elements do not include reference bits.

9. The method of claim 8, wherein the first reference bits and the second reference bits are pilot bits.

10. The method of claim 8, wherein a predetermined number of data elements are between reference elements of the first portion.

11. The method of claim 8, wherein the reference and non-reference bit elements of the second portion are time multiplexed.

12. The method of claim 8, wherein at least one of the first reference bits are derived from an orthogonal code.

13. The method of claim 8, wherein the first reference bits are derived from a first sequence and the second reference bits are derived from a second sequence.

14. The method of claim 8, wherein the frame is a Code Division Multiple Access (CDMA) frame.

15. A mobile device comprising:

a processor configured to generate first reference bits and second reference bits;

circuitry configured to produce a portion of a frame to send in an uplink transmission, wherein the portion of the frame includes a first portion and a second portion;

wherein the first portion includes the first reference bits and data bits;

wherein the second portion includes the second reference bits without data bits;

wherein alternating elements of the second portion include reference bits and elements between the alternating elements do not include reference bits; and

circuitry configured to send the portion of the frame.

16. The mobile device of claim 15, wherein the first reference bits and the second reference bits are pilot bits.

17. The mobile device of claim 15, wherein a predetermined number of data elements are between reference elements of the first portion.

18. The mobile device of claim 15, wherein the reference and non-reference bit elements of the second portion are time multiplexed.

19. The mobile device of claim 15, wherein at least one of the first reference bits are derived from an orthogonal code.

20. The mobile device of claim 15, wherein the first reference bits are derived from a first sequence and the second reference bits are derived from a second sequence.

21. The mobile device of claim 15, wherein the frame is a Code Division Multiple Access (CDMA) frame.

22. A network device comprising:

circuitry configured to receive a portion of a frame from a mobile device, wherein the portion of the frame includes a first portion and a second portion;

wherein the first portion includes first reference bits and data bits;

wherein the second portion includes second reference bits without data bits; and

wherein alternating elements of the second portion include reference bits and elements between the alternating elements do not include reference bits.

23. The network device of claim 22, wherein the first reference bits and the second reference bits are pilot bits.

24. The network device of claim 22, wherein a predetermined number of data elements are between reference elements of the first portion.

25. The network device of claim 22, wherein the reference and non-reference bit elements of the second portion are time multiplexed.

26. The network device of claim 22, wherein at least one of the first reference bits are derived from an orthogonal code.

27. The network device of claim 22, wherein the first reference bits are derived from a first sequence and the second reference bits are derived from a second sequence.

28. The network device of claim 22, wherein the frame is a Code Division Multiple Access (CDMA) frame.