Abstract
A Multi-Point HSDPA system may provide downlink aggregation from multiple cells for a single receive antenna UE without requiring an advanced Type 3i receiver by providing switching-based scheduling from one of the cells based on channel conditions of the respective cells as reported by the UE. For example the UE may monitor the HS-SCCH from both cells so that it may decode the HS-DSCH in any particular TTI as data is scheduled. The UE may further transmit a CQI for each of the cells so that scheduling decisions between the cells at each TTI may be dynamically made to provide the downlink packet from the better of the cells.
A Multi-Point HSDPA system may provide downlink aggregation from multiple cells for a single receive antenna UE without requiring an advanced Type 3i receiver by providing switching-based scheduling from one of the cells based on channel conditions of the respective cells as reported by the UE. For example the UE may monitor the HS-SCCH from both cells so that it may decode the HS-DSCH in any particular TTI as data is scheduled. The UE may further transmit a CQI for each of the cells so that scheduling decisions between the cells at each TTI may be dynamically made to provide the downlink packet from the better of the cells.
Technologies
Broadcast/Multicast
Product
Use Cases
Wireless communication
Services
Claim
1. A method of wireless communication, comprising:', 'monitoring a first control channel from a first cell and a second control channel from a second cell, wherein the first cell provides a first downlink data channel in a first carrier frequency and the second cell provides a second downlink data channel in the first carrier frequency; and', 'decoding first downlink data on only one of the first downlink data channel or the second downlink data channel during a first time interval.
2. The method of claim 1, further comprising:', 'transmitting feedback corresponding to a first characteristic of the first cell and a second characteristic of the second cell,', 'wherein the first downlink data is adapted in accordance with the feedback.
3. The method of claim 2, further comprising determining the first characteristic of the first cell and the second characteristic of the second cell,', 'wherein the feedback comprises at least one channel quality indicator corresponding to the first characteristic and the second characteristic.
4. The method of claim 2, wherein the first downlink data is scheduled to be sent during the first time interval over one of the first downlink data channel or the second downlink data channel in accordance with the feedback.
5. The method of claim 1, wherein the first time interval comprises a', 'TTI.
6. The method of claim 1, wherein the decoding of the first downlink data comprises decoding the first downlink data channel or the second downlink data channel in accordance with a corresponding one of the first control channel or the second control channel.
7. The method of claim 1, further comprising:', 'monitoring a third control channel from a third cell and a fourth control channel from a fourth cell, wherein the third cell provides a third downlink data channel in a second carrier frequency different from the first carrier frequency and the fourth cell provides a fourth downlink data channel in the second carrier frequency; and', 'decoding second downlink data on only one of the third downlink data channel or the fourth downlink data channel during the first time interval.
8. The method of claim 7, further comprising:', 'transmitting feedback corresponding to a third characteristic of the third cell and a fourth characteristic of the fourth cell,', 'wherein the second downlink data is adapted in accordance with the feedback.
9. The method of claim 7, wherein the second downlink data is scheduled to be sent during the first time interval over one of the third downlink data channel or the fourth downlink data channel in accordance with the feedback
10. A method of wireless communication, comprising:', 'transmitting a first pilot signal for a first cell;', 'transmitting a second pilot signal for a second cell;', 'receiving from a UE at least one channel quality indicator corresponding to a characteristic of the first pilot signal and second pilot signal;', 'determining, based at least in part on the at least one channel quality indicator, a better cell among the first cell and the second cell; and', 'scheduling a packet for the UE on the better cell
11. The method of claim 10, further comprising: transmitting the packet to the UE utilizing the better cell
12. The method of claim 10, wherein the determining of the better cell is performed on a per-TTI basis
13. The method of claim 10, wherein the determining of the better cell is based further on loading conditions at each of the first cell and the second cell
14. The method of claim 10, further comprising:', 'transmitting a third pilot signal for a third cell;', 'transmitting a fourth pilot signal for a fourth cell;', 'receiving from the UE at least one second channel quality indicator corresponding to a characteristic of the third pilot signal and fourth pilot signal; determining, based at least in part on the at least one second channel quality indicator, a second better cell among the third cell and the fourth cell; and scheduling a second packet for the UE on the second better cell
15. The method of claim 14, further comprising: transmitting the second packet to the UE utilizing the second better cell
16. An apparatus for wireless communication, comprising:', 'a receiver for receiving a first reference signal from a first cell and a second reference signal from a second cell, wherein the first cell and the second cell are in the same carrier frequency;', 'a channel processor for determining a first channel estimate corresponding to the first reference signal and a second channel estimate corresponding to the second reference signal;', 'a transmitter for transmitting a first channel quality indication', 'corresponding to the first channel estimate and a second channel quality indication corresponding to the second channel estimate;', 'a receive processor for receiving first control information from the first cell and second control information from the second cell, and for providing decoding control information for decoding a data channel; and a controller (1090} for decoding only one of a first data channel or a second data channel in accordance with the decoding control information for a corresponding one of the first cell or the second cell during a first time interval
17. An apparatus for wireless communication, comprising:', 'means for monitoring a first control channel from a first cell and a second control channel from a second cell, wherein the first cell provides a first downlink data channel in a first carrier frequency and the second cell provides a second downlink data channel in the first carrier frequency; and', 'means for decoding downlink data on only one of the first downlink data channel or the second downlink data channel during a first time interval
18. The apparatus of claim 17, further comprising:', 'means for transmitting feedback corresponding to a first characteristic of the first cell and a second characteristic of the second cell,', 'wherein the downlink data is adapted in accordance with the feedback
19. The apparatus of claim 18, further comprising means for determining the first characteristic of the first cell and the second characteristic of the second cell,', 'wherein the feedback comprises at least one channel quality indicator corresponding to the first characteristic and the second characteristic.
20. The apparatus of claim 18, wherein the downlink data is scheduled to be sent during the first time interval over one of the first downlink data channel or the second downlink data channel in accordance with the feedback.
21. The apparatus of claim 17, wherein the first time interval comprises a TTI.
22. The apparatus of claim 17, wherein the means for decoding the downlink data comprises means for decoding the first downlink data channel or the second downlink data channel in accordance with a corresponding one of the first control channel or the second control channel.
23. The apparatus of claim 17, further comprising:', 'means for monitoring a third control channel from a third cell and a fourth control channel from a fourth cell, wherein the third cell provides a third downlink data channel in a second carrier frequency different from the first carrier frequency and the fourth cell provides a fourth downlink data channel in the second carrier frequency; and', 'means for decoding second downlink data on only one of the third downlink data channel or the fourth downlink data channel during the first time interval.
24. The apparatus of claim 23, further comprising:', 'means for transmitting feedback corresponding to a third characteristic of the third cell and a fourth characteristic of the fourth cell,', 'wherein the second downlink data is adapted in accordance with the feedback.
25. The apparatus of claim 23, wherein the second downlink data is scheduled to be sent during the first time interval over one of the third downlink data channel or the fourth downlink data channel in accordance with the feedback.
26. An apparatus for wireless communication, comprising:', 'means for transmitting a first pilot signal for a first cell;', 'means for transmitting a second pilot signal for a second cell;', 'means for receiving from a UE at least one channel quality indicator corresponding to a characteristic of the first pilot signal and second pilot signal; means for determining, based at least in part on the at least one channel quality indicator, a better cell among the first cell and the second cell; and', 'means for scheduling a packet for the UE on the better cell.
27. The apparatus of claim 26, further comprising: means for transmitting the packet to the UE utilizing the better cell.
28. The apparatus of claim 26, wherein the means for determining the better cell is configured to determine the better cell on a per-TTI basis.
29. The apparatus of claim 26, wherein the means for determining the better cell is configured to determine the better cell based further on loading conditions at each of the first cell and the second cell.
30. The apparatus of claim 26, further comprising:', 'means for transmitting a third pilot signal for a third cell;', 'means for transmitting a fourth pilot signal for a fourth cell;', 'means for receiving from the UE at least one second channel quality indicator corresponding to a characteristic of the third pilot signal and fourth pilot signal;', 'means for determining, based at least in part on the at least one second channel quality indicator, a second better cell among the third cell and the fourth cell; and', 'means for scheduling a second packet for the UE on the second better cell.
31. The apparatus of claim 30, further comprising: means for transmitting the second packet to the UE utilizing the second better cell.']
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SUMMARY
ClaimChart-EP2606578A1-STO
Patent number:EP2606578A1
Claim Chart Type : SEP Claim Chart
Price: 200 €
Note:
The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
The information in grey was provided by the patent holder
The information in purple was extracted from the FrandAvenue
Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.