Abstract
A technique of operating a wireless communication system includes determining respective geometries of multiple subscriber stations, which include a first subscriber station and a second subscriber station, with respect to a serving base station. Respective channel sounding bandwidths for sounding the channel between the multiple subscriber stations and the serving base station are then scheduled, based on the respective geometries. The respective channel sounding bandwidths include a first channel sounding bandwidth (associated with the first subscriber station) and a second channel sounding bandwidth (associated with the second subscriber station). The first channel sounding bandwidth is greater than or equal to the second channel sounding bandwidth and the first subscriber station has a lower geometry than the second subscriber station.
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4G | 24/02/2011 | ISLD-201103-011 | FREESCALE SEMICONDUCTOR INC |
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4G | 03/11/2017 | ISLD-201801-001 | APPLE INC |
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4G | 16/05/2018 | ISLD-201806-042 | APPLE INC |
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No | Family Member | |||
4G | 01/07/2020 | ISLD-202007-001 | APPLE INC |
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4G | 01/07/2020 | ISLD-202007-001 | APPLE INC |
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Technologies
Channel Arrangement/Coding
Product
Base Station (eNB/gNB)
Use Cases
Services
Claim
1. A method of operating a subscriber station comprising:
at the subscriber station:
receiving a power control target, wherein the power control target corresponds to a first transmit power spectral density level for transmitting a first channel sounding burst having first channel sounding bandwidth;
determining a second power spectral density level by scaling the first power control target based on a second channel sounding bandwidth for a second channel sounding burst, wherein the second channel sounding bandwidth is larger than the first channel sounding bandwidth and the second power spectral density level is lower than the first transmit power spectral density level; and
transmitting the second channel sounding burst having the second channel sounding bandwidth and the second power spectral density level.
2. The method of claim 1, further comprising:
receiving a channel sounding burst schedule for the second channel sounding burst, wherein the channel sounding burst schedule is associated with the second channel sounding bandwidth.
3. The method of claim 1, wherein the channel sounding burst is a code division multiplexed signal.
4. The method of claim 1, wherein said receiving the power control target is performed periodically.
5. The method of claim 1, wherein the first channel sounding bandwidth is one resource block.
6. The method of claim 1, wherein the subscriber station is transmitting at maximum or near maximum power.
7. The method of claim 1, wherein the first channel sounding burst and the second channel sounding burst are generated by a cyclic shift of a constant amplitude zero autocorrelation (CAZAC) sequence and transmitted in a channel sounding symbol.
8. The method of claim 7, wherein one or more of the cyclic shifts of the CAZAC sequence is not assigned to a subscriber station within the second channel sounding bandwidth of the channel sounding symbol.
9. An apparatus for implementation in a subscriber station, comprising:
at least one processor, configured to operate with wireless communication circuitry of the subscriber station to:
receive a power control target, wherein the power control target corresponds to a first transmit power spectral density level for transmitting a first channel sounding burst having first channel sounding bandwidth;
determine a second power spectral density level by scaling the first power control target based on a second channel sounding bandwidth for a second channel sounding burst, wherein the second channel sounding bandwidth is larger than the first channel sounding bandwidth and the second power spectral density level is lower than the first transmit power spectral density level; and
transmit the second channel sounding burst having the second channel sounding bandwidth and the second power spectral density level.
10. The apparatus of claim 9, wherein the at least one processor is further configured to:
receive a channel sounding burst schedule for the second channel sounding burst, wherein the channel sounding burst schedule is associated with the second channel sounding bandwidth.
11. The apparatus of claim 9, wherein the channel sounding burst is a code division multiplexed signal.
12. The apparatus of claim 9, wherein said receiving the power control target is performed periodically.
13. The apparatus of claim 9, wherein the first channel sounding bandwidth is one resource block.
14. The apparatus of claim 9, wherein the first channel sounding burst and the second channel sounding burst are generated by a cyclic shift of a constant amplitude zero autocorrelation (CAZAC) sequence and transmitted in a channel sounding symbol.
15. A subscriber station, comprising:
wireless communication circuitry; and at least one processor coupled to the wireless communication circuitry, wherein the at least one processor is configured to operate with wireless communication circuitry of the subcriber station to:
receive a power control target, wherein the power control target corresponds to a first transmit power spectral density level for transmitting a first channel sounding burst having first channel sounding bandwidth;
determine a second power spectral density level by scaling the first power control target based on a second channel sounding bandwidth for a second channel sounding burst, wherein the second channel sounding bandwidth is larger than the first channel sounding bandwidth and the second power spectral density level is lower than the first transmit power spectral density level; and
transmit the second channel sounding burst having the second channel sounding bandwidth and the second power spectral density level.
16. The subscriber station of claim 15, wherein the at least one processor is further configured to:
receive a channel sounding burst schedule for the second channel sounding burst, wherein the channel sounding burst schedule is associated with the second channel sounding bandwidth.
17. The subscriber station of claim 15, wherein the channel sounding burst is a code division multiplexed signal.
18. The subscriber station of claim 15, wherein said receiving the power control target is performed periodically.
19. The subscriber station of claim 15, wherein the first channel sounding bandwidth is one resource block.
20. The subscriber station of claim 15, wherein the first channel sounding burst and the second channel sounding burst are generated by a cyclic shift of a constant amplitude zero autocorrelation (CAZAC) sequence and transmitted in a channel sounding symbol.
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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.