Abstract
Power control for devices having multiple transmit antennas are disclosed including power control methods for Physical Uplink Control Channel (PUCCH) and Sounding Reference Signal (SRS) transmissions for a wireless transmit/receive unit (WTRU). The PUCCH and SRS power control methods include selecting a multiple input multiple output (MIMO) mode and changing the power of the PUCCH or SRS transmission based on the selected MIMO mode. Another power control method estimates an antenna gain imbalance (AGI) for a WTRU having at least two transmit antennas. The AGI is based on measuring a Reference Signal Received Power (RSRP) on each transmit antenna. Each transmit antenna is then scaled by an AGI scaling factor based on the estimated AGI.
Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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4G | 30/10/2011 | ISLD-201109-010 | INTERDIGITAL INC |
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Yes | Basis Patent | |||
4G | 30/12/2019 | ISLD-201912-087 | INTERDIGITAL INC |
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No | Family Member |
Specification Information
Specification Information
Technologies
Family Information
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US2011096815A1 | 4G | 30/10/2011 | ISLD-201109-010 | INTERDIGITAL INC |
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US2011096815A1 | 4G | 30/12/2019 | ISLD-201912-087 | INTERDIGITAL INC |
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WO2011041555A2 | 4G | 30/10/2011 | ISLD-201109-010 | INTERDIGITAL INC |
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WO2011041555A2 | 4G | 30/12/2019 | ISLD-201912-087 | INTERDIGITAL INC |
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Yes | Basis Patent | |||
WO2011041555A3 | 4G | 30/10/2011 | ISLD-201109-010 | INTERDIGITAL INC |
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WO2011041555A3 | 4G | 30/12/2019 | ISLD-201912-087 | INTERDIGITAL INC |
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EP2484161A2 | 4G | 30/10/2011 | ISLD-201109-010 | INTERDIGITAL INC |
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EP2484161A2 | 4G | 30/12/2019 | ISLD-201912-087 | INTERDIGITAL INC |
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TW201138345A | 4G | 30/10/2011 | ISLD-201109-010 | INTERDIGITAL INC |
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Technologies
Power Control
Multiple-Input Multiple-Output(MIMO)/Massive MIMO
Product
Use Cases
Services
Claim
1. A method for Physical Uplink Control Channel (PUCCH) power control performed by a wireless transmit/receive unit (WTRU) with a plurality of antenna ports, the method comprising:
receiving, by the WTRU from a network device, a PUCCH configuration indicating whether to transmit PUCCH on the plurality of antenna ports;
on a condition that the WTRU is configured to transmit PUCCH on the plurality of antenna ports, receiving by the WTRU a multiple input multiple output (MIMO) PUCCH power offset value; and
determining, by the WTRU, a physical uplink control channel (PUCCH) transmit power, wherein the PUCCH transmit power is determined based on at least the received MIMO PUCCH power offset value.
2. The method of claim 1, further comprising:
on a condition that the WTRU is configured to transmit PUCCH on a single antenna port, setting the MIMO PUCCH power offset value to zero.
3. The method of claim 1, wherein the PUCCH transmit power is split equally across the plurality of antenna ports.
4. The method of claim 1, wherein the PUCCH configuration and the MIMO PUCCH power offset value are received via one or more higher layers.
5. A wireless transmit/receive unit (WTRU) comprising:
a plurality of antenna ports;
a processor configured to:
receive a Physical Uplink Control Channel (PUCCH) configuration indicating whether to transmit PUCCH on the plurality of antenna ports;
on a condition that the WTRU is configured to transmit PUCCH on a plurality of antenna ports, receive a multiple input multiple output (MIMO) PUCCH power offset value; and
determine a physical uplink control channel (PUCCH) transmit power, wherein the PUCCH transmit power is determined by selecting a lesser of a configured maximum power and a PUCCH transmit power determined based on at least the received MIMO PUCCH power offset value.
6. The WTRU of claim 5, wherein the processor is further configured to:
on a condition that the WTRU is configured to transmit PUCCH on a single antenna port, set the MIMO PUCCH offset value to zero.
7. The WTRU of claim 5, wherein the PUCCH transmit power is split equally across the plurality of antenna ports.
8. The WTRU of claim 5, wherein the PUCCH configuration and the MIMO PUCCH power offset value are received via one or more higher layers.
Associated Portfolios
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
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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.