US7043210B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adaptive coding and modulation
Assignee: Apple Inc
•
Filing: 2002-06-04
•
Granted: 2006-05-09
•
Expires: 2022-06-04
Abstract
Abstract The present invention provides a unique feedback system in a wireless communication system wherein the transmission channel is always overloaded with data, which is configured and modulated at a select order of modulation. Based on the channel conditions, only a portion of the data can be successfully received. As such, the receiver will attempt to receive the data using demodulation techniques corresponding to the different levels of modulation used to encode the data transmitted. The receiver will determine the data that is recovered, or the highest order of modulation at which the data is recovered, and provide feedback to the transmitter. The transmitter will then retransmit the data that was not properly received. By overloading the channel at all times, the maximum amount of data capable of being transmitted over the channel is optimized without requiring or heavily relying on the receiver feeding back channel condition information to the transmitter.
Inventors
- 👤 Peiying Zhu
- 👤 Wen Tong
- 👤 Claude C. Royer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:16
CPC Classifications
H; H04; H04L; H04L1/00; H04L1/12; H04L1/16; H04L1/18; H04L1/1867; H04L1/1887; H04L1/0001; H04L1/0002; H04L1/0003; H04L1/1829; H04L1/1854; H04L27/00; H04L27/0012; H04L1/0009; H04L1/004; H04L1/0056; H04L1/0067; H04L1/0068
Claims Analysis
Total Claims: 50
Claim 1
Independent Claim
106 words
A method for facilitating communication with a mobile terminal comprising: associating a plurality of groups of data with a corresponding plurality of modulation orders to form data wherein more significant groups of data are associated with lower modulation orders and less significant groups of data are associated with higher modulation orders, wherein the higher modulation orders include a highest order of modulation; transmitting at least part of the data using the highest order of modulation; receiving feedback from the mobile terminal indicative of the data not received by the mobile terminal; identifying the data not received based on the feedback; and retransmitting the data not received.
Claim 2
Independent Claim
106 words
A method for facilitating communication with a mobile terminal comprising: associating a plurality of groups of data with a corresponding plurality of modulation orders to form data wherein more significant groups of data are associated with lower modulation orders and less significant groups of data are associated with higher modulation orders, wherein the higher modulation orders include a highest order of modulation; transmitting at least part of the data using the highest order of modulation; receiving feedback from the mobile terminal indicative of the data not received by the mobile terminal; identifying the data not received based on the feedback; and retransmitting the data not received.
Claim 3
Dependent Claim
16 words
The method of claim 1 wherein one of the plurality of modulation is quadrature amplitude modulation.
Claim 4
Dependent Claim
23 words
The method of claim 2 wherein the plurality of modulation orders range from quadrature phase shift keying to 2 n quadrature amplitude modulation.
Claim 5
Dependent Claim
36 words
The method of claim 1 wherein each of the plurality of groups of data is associated with a unique packet scheduled for transmission and the lower modulation orders are for those packets having a higher priority.
Claim 6
Dependent Claim
17 words
The method of claim 1 wherein the feedback is provided according to an automated retransmission request protocol.
Claim 7
Dependent Claim
18 words
The method of claim 1 wherein the feedback is provided according to a hybrid automated retransmission request protocol.
Claim 8
Dependent Claim
22 words
The method of claim 1 wherein the feedback is indicative of those of the plurality of modulation orders that were not recoverable.
Claim 9
Dependent Claim
21 words
The method of claim 1 wherein the feedback is indicative of those of the plurality of modulation orders that were recoverable.
Claim 10
Dependent Claim
22 words
The method of claim 1 wherein the feedback is indicative of those of the plurality of groups of data that were recoverable.
Claim 11
Dependent Claim
23 words
The method of claim 1 wherein the feedback is indicative of those of the plurality of groups of data that were not recoverable.
Claim 12
Dependent Claim
16 words
The method of claim 1 wherein the data retransmitted is punctured into the data being transmitted.
Claim 13
Dependent Claim
20 words
The method of claim 1 further comprising controlling the highest of the plurality of modulation orders based on the feedback.
Claim 14
Independent Claim
121 words
A method for facilitating communication with a base station wherein the base station associates a plurality of groups of data with a corresponding plurality of modulation orders to form data wherein more significant groups of data are associated with lower modulation orders and less significant groups of data are associated with higher modulation orders and transmits at least part of the data using a highest order of modulation, the method comprising: attempting to receive the data at each of the plurality of modulation orders; generating feedback indicative of the data not received; and transmitting the feedback to the base station to allow the base station to identify the data not received based on the feedback and retransmit the data not received.
Claim 15
Independent Claim
121 words
A method for facilitating communication with a base station wherein the base station associates a plurality of groups of data with a corresponding plurality of modulation orders to form data wherein more significant groups of data are associated with lower modulation orders and less significant groups of data are associated with higher modulation orders and transmits at least part of the data using a highest order of modulation, the method comprising: attempting to receive the data at each of the plurality of modulation orders; generating feedback indicative of the data not received; and transmitting the feedback to the base station to allow the base station to identify the data not received based on the feedback and retransmit the data not received.
Claim 16
Dependent Claim
17 words
The method of claim 13 wherein one of the plurality of modulation orders is quadrature amplitude modulation.
Claim 17
Dependent Claim
23 words
The method of claim 14 wherein the plurality of modulation orders range from quadrature phase shift keying to 2 n quadrature amplitude modulation.
Claim 18
Dependent Claim
36 words
The method of claim 13 wherein each of the plurality of groups of data is associated with a unique packet scheduled for transmission and the lower modulation orders are for those packets having a higher priority.
Claim 19
Dependent Claim
17 words
The method of claim 13 wherein the feedback is provided according to an automated retransmission request protocol.
Claim 20
Dependent Claim
18 words
The method of claim 13 wherein the feedback is provided according to a hybrid automated retransmission request protocol.
Claim 21
Dependent Claim
22 words
The method of claim 13 wherein the feedback is indicative of those of the plurality of modulation orders that were not recoverable.
Claim 22
Dependent Claim
21 words
The method of claim 13 wherein the feedback is indicative of those of the plurality of modulation orders that were recoverable.
Claim 23
Dependent Claim
22 words
The method of claim 13 wherein the feedback is indicative of those of the plurality of groups of data that were recoverable.
Claim 24
Dependent Claim
23 words
The method of claim 13 wherein the feedback is indicative of those of the plurality of groups of data that were not recoverable.
Claim 25
Dependent Claim
37 words
The method of claim 13 further comprising determining the highest of the plurality of modulation orders based on historical performance and transmitting information indicative of the highest of the plurality of modulation orders to the base station.
Claim 26
Independent Claim
105 words
An apparatus for facilitating communication with a mobile terminal comprising control circuitry, receive circuitry and transmit circuitry cooperatively adapted to: associate a plurality of groups of data with a corresponding plurality of modulation orders to form data wherein more significant groups of data are associated with lower modulation orders and less significant groups of data are associated with higher modulation orders; transmit at least part of the data using a highest order of modulation; receive feedback from the mobile terminal indicative of the data not received by the mobile terminal; identify the data not received based on the feedback; and retransmit the data not received.
Claim 27
Independent Claim
105 words
An apparatus for facilitating communication with a mobile terminal comprising control circuitry, receive circuitry and transmit circuitry cooperatively adapted to: associate a plurality of groups of data with a corresponding plurality of modulation orders to form data wherein more significant groups of data are associated with lower modulation orders and less significant groups of data are associated with higher modulation orders; transmit at least part of the data using a highest order of modulation; receive feedback from the mobile terminal indicative of the data not received by the mobile terminal; identify the data not received based on the feedback; and retransmit the data not received.
Claim 28
Dependent Claim
17 words
The apparatus of claim 24 wherein one of the plurality of modulation orders is quadrature amplitude modulation.
Claim 29
Dependent Claim
23 words
The apparatus of claim 25 wherein the plurality of modulation orders range from quadrature phase shift keying to 2 n quadrature amplitude modulation.
Claim 30
Dependent Claim
36 words
The apparatus of claim 24 wherein each of the plurality of groups of data is associated with a unique packet scheduled for transmission and the lower modulation orders are for those packets having a higher priority.
Claim 31
Dependent Claim
17 words
The apparatus of claim 24 wherein the feedback is provided according to an automated retransmission request protocol.
Claim 32
Dependent Claim
18 words
The apparatus of claim 24 wherein the feedback is provided according to a hybrid automated retransmission request protocol.
Claim 33
Dependent Claim
22 words
The apparatus of claim 24 wherein the feedback is indicative of those of the plurality of modulation orders that were not recoverable.
Claim 34
Dependent Claim
21 words
The apparatus of claim 24 wherein the feedback is indicative of those of the plurality of modulation orders that were recoverable.
Claim 35
Dependent Claim
22 words
The apparatus of claim 24 wherein the feedback is indicative of those of the plurality of groups of data that were recoverable.
Claim 36
Dependent Claim
23 words
The apparatus of claim 24 wherein the feedback is indicative of those of the plurality of groups of data that were not recoverable.
Claim 37
Dependent Claim
16 words
The apparatus of claim 24 wherein the data retransmitted is punctured into the data being transmitted.
Claim 38
Dependent Claim
26 words
The apparatus of claim 24 wherein the control circuitry is further adapted to control the highest of the plurality of modulation orders based on the feedback.
Claim 39
Independent Claim
131 words
An apparatus for facilitating communication with a base station wherein the base station associates a plurality of groups of data with a corresponding plurality of modulation orders to form data wherein more significant groups of data are associated with lower modulation orders and less significant groups of data are associated with higher modulation orders and transmits at least part of the data using a highest order of modulation, the apparatus comprising control circuitry, receive circuitry and transmit circuitry cooperatively adapted to: attempt to receive the data at each of the plurality of modulation orders; generate feedback indicative of the data not received; and transmit the feedback to the base station to allow the base station to identify the data not received based on the feedback and retransmit the data not received.
Claim 40
Independent Claim
131 words
An apparatus for facilitating communication with a base station wherein the base station associates a plurality of groups of data with a corresponding plurality of modulation orders to form data wherein more significant groups of data are associated with lower modulation orders and less significant groups of data are associated with higher modulation orders and transmits at least part of the data using a highest order of modulation, the apparatus comprising control circuitry, receive circuitry and transmit circuitry cooperatively adapted to: attempt to receive the data at each of the plurality of modulation orders; generate feedback indicative of the data not received; and transmit the feedback to the base station to allow the base station to identify the data not received based on the feedback and retransmit the data not received.
Claim 41
Dependent Claim
17 words
The apparatus of claim 36 wherein one of the plurality of modulation orders is quadrature amplitude modulation.
Claim 42
Dependent Claim
23 words
The apparatus of claim 37 wherein the plurality of modulation orders range from quadrature phase shift keying to 2 n quadrature amplitude modulation.
Claim 43
Dependent Claim
36 words
The apparatus of claim 36 wherein each of the plurality of groups of data is associated with a unique packet scheduled for transmission and the lower modulation orders are for those packets having a higher priority.
Claim 44
Dependent Claim
17 words
The apparatus of claim 36 wherein the feedback is provided according to an automated retransmission request protocol.
Claim 45
Dependent Claim
18 words
The apparatus of claim 36 wherein the feedback is provided according to a hybrid automated retransmission request protocol.
Claim 46
Dependent Claim
22 words
The apparatus of claim 36 wherein the feedback is indicative of those of the plurality of modulation orders that were not recoverable.
Claim 47
Dependent Claim
21 words
The apparatus of claim 36 wherein the feedback is indicative of those of the plurality of modulation orders that were recoverable.
Claim 48
Dependent Claim
22 words
The apparatus of claim 36 wherein the feedback is indicative of those of the plurality of groups of data that were recoverable.
Claim 49
Dependent Claim
23 words
The apparatus of claim 36 wherein the feedback is indicative of those of the plurality of groups of data that were not recoverable.
Claim 50
Dependent Claim
37 words
The apparatus of claim 36 further comprising determining the highest of the plurality of modulation orders based on historical performance and transmitting information indicative of the highest of the plurality of modulation orders to the base station.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2009-05-08 | 2009-11-07 | 2010-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2013-05-08 | 2013-11-07 | 2014-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2017-05-08 | 2017-11-07 | 2018-05-09 | $7700.00 | Window Closed / Lapsed |