CA2605065A1 - Channel quality reporting for adaptive sectorization - Google Patents

Channel quality reporting for adaptive sectorization Download PDF

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Publication number
CA2605065A1
CA2605065A1 CA002605065A CA2605065A CA2605065A1 CA 2605065 A1 CA2605065 A1 CA 2605065A1 CA 002605065 A CA002605065 A CA 002605065A CA 2605065 A CA2605065 A CA 2605065A CA 2605065 A1 CA2605065 A1 CA 2605065A1
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Prior art keywords
pilot
cqi
processor
receiving
transmitting
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Granted
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CA002605065A
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French (fr)
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CA2605065C (en
Inventor
Dhananjay Ashok Gore
Alexei Gorokhov
Tingfang Ji
Aamod Khandekar
Tamer Kadous
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Qualcomm Inc
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Individual
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • H04B1/7143—Arrangements for generation of hop patterns
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0426—Power distribution
    • H04B7/043—Power distribution using best eigenmode, e.g. beam forming or beam steering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0689—Hybrid systems, i.e. switching and simultaneous transmission using different transmission schemes, at least one of them being a diversity transmission scheme
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0027—Scheduling of signalling, e.g. occurrence thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0037—Inter-user or inter-terminal allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/121—Wireless traffic scheduling for groups of terminals or users
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
    • H04B10/0795—Performance monitoring; Measurement of transmission parameters
    • H04B10/07953—Monitoring or measuring OSNR, BER or Q
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0636—Feedback format
    • H04B7/0645—Variable feedback
    • H04B7/065—Variable contents, e.g. long-term or short-short
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0697—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using spatial multiplexing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0057—Physical resource allocation for CQI

Abstract

Apparatuses and methodologies are described that enhance performance in a wireless communication system using beamforming transmissions. According to one aspect, the channel quality is monitored. Channel quality indicators can be used to select a scheduling technique, such as space division multiplexing (SDM), multiple-input multiple output (MIMO) transmission and opportunistic beamforming for one or more user devices. In addition, the CQI can be used to determine the appropriate beam assignment or to update the beam pattern.

Claims (52)

1. A method for enhancing performance for a wireless communication environment, comprising:
generating a first pilot;
transmitting the first pilot; and receiving at least one channel quality indicator (CQI) based at least in part upon the first pilot.
2. A method of claim 1, further comprising scheduling at least one user device based at least in part upon the at least one CQI.
3. The method of claim 2, further comprising using at least one of spatial division multiplexing (SDM), multiple input multiple output (MIMO) and opportunistic beamforming scheduling techniques to schedule the at least one user device.
4. The method of claim 1, further comprising assigning a user device to a beam based upon the at least one CQI.
5. The method of claim 1, further comprising using a signal to interference to noise ratio (SINR) as the CQI.
6. The method of claim 1, further comprising using a supportable rate over the channel as the CQI.
7. The method of claim 1, the first pilot is transmitted on a first beam and further comprising:
generating a second pilot;
transmitting the second pilot on a second beam; and receiving a second CQI based at least in part upon the second pilot.
8. The method of claim 1, the first pilot is transmitted over an area including a plurality of beams.
9. The method of claim 8, the at least one CQI is based at least in part upon a set of beam weights.
10. The method of claim 9, further comprising utilizing the set of beam weights.
11. The method of claim 1, the at least one CQI is received every frame.
12. The method of claim 1, the at least one CQI is received based upon at least one of spatial division multiplexing (SDM), multiple input multiple output (MIMO) and opportunistic beamforming scheduling.
13. The method of claim 1, further comprising receiving a control channel CQI.
14. The method of claim 13, the first pilot is transmitted on an antenna.
15. The method of claim 1, further comprising modifying a beam based at least in part upon the at least one CQI.
16. A method for enhancing performance for a wireless communication environment comprising:
receiving a pilot;
determining a CQI based at least in part upon the pilot; and transmitting the CQI to a base station.
17. The method of claim 16, further comprising estimating a channel based on the pilot and a set of beam weights, the channel estimate is used in determining the CQI.
18. A wireless communication apparatus comprising:
a processor configured to generate a first pilot, transmit the first pilot and receive at least one CQI based at least in part upon the first pilot; and a memory coupled with the processor.
19. The wireless apparatus of claim 18, the processor schedules at least one user device based at least in part upon the at least one CQI.
20. The wireless apparatus of claim 19, the processor uses at least one of spatial division multiplexing (SDM), multiple input multiple output (MIMO) and opportunistic beamforming scheduling techniques to schedule the at least one user device.
21. The wireless apparatus of claim 18, the processor assigns a user device to a beam based upon the at least one CQI.
22. The wireless apparatus of claim 18, the CQI is at least one of a signal to interference to noise ratio (SINR) and a supportable over the channel.
23. The wireless apparatus of claim 18, the processor is configured to generate a second pilot, transmit the second pilot and receive a second CQI based at least in part upon the second pilot.
24. The wireless apparatus of claim 18, the processor transmits the first pilot over an area including a plurality of beams.
25. The wireless apparatus of claim 24, the at least one CQI is based at least in part upon a set of beam weights stored in the memory.
26. The wireless apparatus of claim 25, the processor utilizes the set of beam weights.
27. The wireless apparatus of claim 18, the processor receives the at least one CQI
every frame.
28. The wireless apparatus of claim 18, the processor receives the at least one CQI
based upon at least one of spatial division multiplexing (SDM), multiple input multiple output (MIMO) and opportunistic beamforming scheduling.
29. The wireless apparatus of claim 18, the processor receives a control channel CQI.
30. The wireless apparatus of claim 29, the processor transmits the first pilot through an antenna.
31. A wireless communication apparatus comprising:
a processor configured to receive a pilot, to determine at least one CQI based at least in part upon the pilot and to transmit the CQI to a base station; and a memory coupled with the processor.
32. The wireless communication apparatus of claim 31, the processor estimates a channel based on the pilot and a set of beam weights, the channel estimate is used in determining the CQI.
33. A wireless communication apparatus for enhancing performance for a wireless communication environment, comprising:
means for generating a first pilot;
means for transmitting the first pilot; and means for receiving at least one channel quality indicator (CQI) based at least in part upon the first pilot.
34. The apparatus of claim 33, further comprising means for scheduling at least one user device based at least in part upon the at least one CQI.
35. The apparatus of claim 33, further comprising:
means for generating a second pilot;
means for transmitting the second pilot on a second beam; and means for receiving a second CQI based at least in part upon the second pilot.
36. The apparatus of claim 33, further comprising means for receiving a control channel CQI.
37. The apparatus of claim 33, further comprising means for utilizing a set of beam weights, the at least one CQI is based at least in part upon the set of beam weights.
38. The apparatus of claim 33, further comprising means for modifying a beam based at least in part upon the at least one CQI.
39. A wireless communication apparatus for enhancing performance for a wireless communication environment, comprising:
means for receiving a pilot; and means for determining a CQI based at least in part upon the pilot; and means for transmitting the CQI to a base station.
40. The apparatus of claim 39, further comprising means for estimating a channel based on the pilot and a set of beam weights, the channel estimate is used in determining the CQI.
41. A computer-readable medium having stored thereon computer-executable instructions for:
generating a first pilot;
transmitting the first pilot; and receiving at least one channel quality indicator (CQI) based at least in part upon the first pilot.
42. The computer-readable medium of claim 41, further comprising instructions for scheduling at least one user device based at least in part upon the at least one CQI.
43. The computer-readable medium of claim 41, further comprising instructions for assigning a user device to a beam based upon the at least one CQI.
44. The computer-readable medium of claim 41, further comprising instructions for:
generating a second pilot;
transmitting the second pilot on a second beam; and receiving a second CQI based at least in part upon the second pilot.
45. A computer-readable medium having stored thereon computer-executable instructions for:
receiving a pilot; and determining a CQI based at least in part upon the pilot; and transmitting the CQI to a base station.
46. A processor that executes instructions for enhancing performance for a wireless communication environment, the instructions comprising:
generating a first pilot;
transmitting the first pilot; and receiving at least one channel quality indicator (CQI) based at least in part upon the first pilot.
47. The processor of claim 46, further comprising scheduling at least one user device based at least in part upon the at least one CQI.
48. The processor of claim 46, further comprising:
generating a second pilot;
transmitting the second pilot on a second beam; and receiving a second CQI based at least in part upon the second pilot.
49. A mobile device that facilitates communicating over a wireless network, comprising:
a component that generates a first pilot;
a component that transmits the first pilot;
a component that receives a CQI based at least in part upon the first pilot;
and a component that schedules at least one user device based at least in part upon the at least one CQI.
50. The mobile device of claim 49, the device is at least one of a cellular phone, a smartphone, a handheld communication device, a handheld computing device, a satellite radio, a global positioning system, a laptop, and a PDA.
51. A mobile device that facilitates communicating over a wireless network, comprising:
a component that receives a pilot;
a component that determines a CQI based at least in part upon the pilot; and a component that transmits the CQI to a base station.
52. The mobile device of claim 51, the device is at least one of a cellular phone, a smartphone, a handheld communication device, a handheld computing device, a satellite radio, a global positioning system, a laptop, and a PDA.
CA2605065A 2005-04-19 2006-04-19 Channel quality reporting for adaptive sectorization Active CA2605065C (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US67257505P 2005-04-19 2005-04-19
US60/672,575 2005-04-19
US71041905P 2005-08-22 2005-08-22
US60/710,419 2005-08-22
US11/261,822 2005-10-27
US11/261,822 US9408220B2 (en) 2005-04-19 2005-10-27 Channel quality reporting for adaptive sectorization
PCT/US2006/014878 WO2006113872A1 (en) 2005-04-19 2006-04-19 Channel quality reporting for adaptive sectorization

Publications (2)

Publication Number Publication Date
CA2605065A1 true CA2605065A1 (en) 2006-10-26
CA2605065C CA2605065C (en) 2012-10-09

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US (2) US9408220B2 (en)
EP (1) EP1872487B1 (en)
JP (3) JP2008538487A (en)
KR (1) KR100956493B1 (en)
CN (1) CN101194440B (en)
BR (1) BRPI0610775B1 (en)
CA (1) CA2605065C (en)
ES (1) ES2638438T3 (en)
HU (1) HUE033060T2 (en)
RU (1) RU2378758C2 (en)
SG (1) SG161296A1 (en)
TW (1) TWI319940B (en)
WO (1) WO2006113872A1 (en)

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