IP Library Granted Patent US 8,311,013
Granted Patent B2
US 8,311,013 · App. 12/607,219 · Granted Nov 13, 2012

Method for efficiently increasing hand-off and access reliability

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Quick Facts
Patent No.
US 8,311,013
App. No.
12/607,219
Granted
Nov 13, 2012
Kind
B2
Abstract

A method, a network base station, and a user communication device for transmitting control data are disclosed. A processor 210 may encode a rescue frame 502 of a set of frames with a higher rescue overhead to data ratio. The processor 210 may encode an ancillary frame 504 of the set of frames with a lower rescue overhead to data ratio. A transceiver 240 may transmit the set of frames.

Claims (37)

1. A method for transmitting control data, comprising:

encoding a first frame of a set of frames with a first overhead to data ratio;

encoding a second frame of the set of frames with a second overhead to data ratio, wherein the first overhead to data ratio is higher than the second overhead to data ratio; and

transmitting the set of frames.

2. The method of claim 1 , further comprising:

encoding an overhead of the first frame with a first repetition rate; and

encoding an overhead of the second frame with a second repetition rate, wherein the first repetition rate is higher than the second repetition rate.

3. The method of claim 1 , further comprising:

encoding an overhead of the rescue frame with a first coding rate; and

encoding an overhead of the second frame with a second coding rate, wherein the first coding rate is higher than the second coding rate.

4. The method of claim 1 , further comprising:

encoding an overhead of the first frame with a first modulation scheme; and

encoding an overhead of the ancillary second frame with a second modulation scheme, wherein the first modulation scheme is less complex than the second modulation scheme.

5. The method of claim 1 , further comprising:

sending the first frame subset and the second frame on a fixed frame schedule.

6. The method of claim 1 , further comprising:

sending the first frame and the second frame on an adjustable frame schedule.

7. The method of claim 6 , further comprising:

adapting the adjustable frame schedule based on at least one of radio frequency channel quality, hybrid-automatic repeat request cycle, access opportunity, periodic control information, and device mobility.

8. The method of claim 1 , further comprising:

adjusting the second overhead to data ratio of the second frame.

9. A base station for transmitting control data, comprising:

a processor that encodes a first frame of a set of frames with a first overhead to data ratio and a second frame of the set of frames with a second overhead to data ratio, wherein the first overhead to data ratio is higher than the second overhead to data ratio; and

a transceiver that transmits the set of frames.

10. The base station of claim 9 , wherein the processor encodes an overhead of the first frame with a first repetition rate and an overhead of the second frame with a second repetition rate, wherein the first repetition rate is higher than the second repetition rate.

11. The base station of claim 9 , wherein the processor encodes an overhead of the rescue frame with a first coding rate and an overhead of the second frame with a second coding rate, wherein the first coding rate is higher than the second coding rate.

12. The base station of claim 9 , wherein the processor encodes an overhead of the first frame with a first modulation scheme and an overhead of the second frame with a second modulation scheme, wherein the first modulation scheme is less complex than the second modulation scheme.

13. The base station of claim 9 , wherein the transceiver sends the first frame and the second frame on a fixed frame schedule.

14. The base station of claim 9 , wherein the transceiver sends the first frame and the second frame on an adjustable frame schedule.

15. The base station of claim 14 , wherein the processor adapts the adjustable frame schedule based on at least one of radio frequency channel quality, hybrid-automatic repeat request cycle, access opportunity, periodic control information, and device mobility.

16. The base station of claim 9 , wherein the processor adjusts the second overhead to data ratio of the second frame.

17. A user communication device for receiving data on an orthogonal frequency-division multiplexing, comprising:

a transceiver that receives a set of frames; and

a processor that decodes a first frame of the set of frames with a first overhead to data ratio and second frame of the set of frames with a second overhead to data ratio, wherein the first overhead to data ratio is higher than the second overhead to data ratio.

18. The user communication device of claim 17 , wherein the transceiver receives the first frame and the second frame on a fixed frame schedule.

19. The user communication device of claim 17 , wherein the transceiver receives the first frame and the second frame on an adjustable frame schedule.

20. The user communication device of claim 17 , wherein the second ancillary overhead to data ratio of the second frame is adjusted.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 21, 2014
From: MOTOROLA MOBILITY LLC
To: GOOGLE TECHNOLOGY HOLDINGS LLC
Reel/Frame 034416/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 21, 2012
From: MOTOROLA MOBILITY, INC.
To: MOTOROLA MOBILITY LLC
Reel/Frame 028829/0856 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 13, 2010
From: MOTOROLA, INC
To: MOTOROLA MOBILITY, INC
Reel/Frame 025673/0558 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 28, 2009
From: FLEMING, PHILIP J.; LEELAHAKRIENGKRAI, RANGSAN; NIKIDES, ROBERT S.; VUKOVIC, IVAN N.
To: MOTOROLA, INC.
Reel/Frame 023434/0307 →