Abstract
A method for reporting power headroom is disclosed. Power headroom may be reported across all carriers (wideband), for a specific carrier, or for a carrier group. The formula used to calculate the power headroom depends on whether the carrier (or a carrier in the carrier group) has a valid uplink grant. If the carrier or carrier group does not have a valid uplink grant, the power headroom may be calculated based on a reference grant. The power headroom is calculated by a wireless transmit/receive unit and is reported to an eNodeB.
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Technologies
Product
Use Cases
Services
Claim
1-29. (canceled)
30. A wireless transmit/receive unit (WTRU), the WTRU comprising:
a memory; and a processor, the processor configured to:
determine a first group maximum power for a first carrier group;
determine a second group maximum power for a second carrier group;
determine a transmission power for the second carrier group using the first group maximum power, the second group maximum power, and a maximum transmission power; and
send, via the second carrier group, a transmission using the transmission power.
31. The WTRU of claim 30, wherein the processor is further configured to receive a configuration from a network, the configuration from the network indicating a first value for the first group maximum power and a second value for the second group maximum power.
32. The WTRU of claim 30, wherein the processor is further configured to receive a configuration from a network indicating a first set of one or more carriers associated with the first carrier group and a second set of one or more carriers associated with the second carrier group.
33. The WTRU of claim 32, wherein the processor is configured to receive the configuration from the network via a higher layer.
34. The WTRU of claim 30, wherein at least one of the first group maximum power and the second group maximum power is based on a power class for the WTRU, a tolerance, a power adjustment, and a maximum allowed transmission power.
35. The WTRU of claim 31, wherein the processor is configured to determine the first group maximum power for the first carrier group using the first value for the first group maximum power.
36. The WTRU of claim 35, wherein the processor is configured to determine the second group maximum power for the second carrier group using the second value for the second group maximum power.
37. A method for a wireless transmit/receive unit (WTRU) to determine a transmission power for a carrier group, the method comprising:
determining, by the WTRU, a first group maximum power for a first carrier group; determining, by the WTRU, a second group maximum power for a second carrier group; determining, by the WTRU, a transmission power for the second carrier group using the first group maximum power, the second group maximum power, and a maximum transmission power for the WTRU; and sending, by the WTRU via the second carrier group, a transmission using the transmission power.
38. The method of claim 37, further comprising receiving a configuration from a network, the configuration from the network indicating a first value for the first group maximum power and a second value for the second group maximum power.
39. The method of claim 37, further comprising receiving a configuration from a network indicating a first set of one or more carriers associated with the first carrier group and a second set of one or more carriers associated with the second carrier group.
40. The method of claim 39, wherein receiving the configuration from the network comprises receiving the configuration from the network via a higher layer.
41. The method of claim 37, wherein at least one of the first carrier group and the second carrier group is based on a power class for the WTRU, a tolerance, a power adjustment, and a maximum allowed transmission power.
42. The method of claim 38, further comprising determining the first group maximum power for the first carrier group using the first value for the first group maximum power.
43. The method of claim 42, wherein determining the second group maximum power for the second carrier group using the second value for the second group maximum power.
44. A wireless transmit/receive unit (WTRU), the WTRU comprising:
a memory; and a processor, the processor configured to:
receive a configuration from a network;
determine a first group maximum power for a first carrier group using the configuration;
determine a second group maximum power for a second carrier group using the configuration;
determine a transmission power for the second carrier group using the first group maximum power, the second group maximum power, and a maximum transmission power for the WTRU; and
send, via the second carrier group, a transmission using the transmission power.
45. The WTRU of claim 44, wherein the configuration comprises a first indication of the first group maximum power and a second indication of the second group maximum power.
46. The WTRU of claim 44, wherein the configuration comprises a first indication of a first set of one or more carriers associated with the first carrier group and a second indication of a second set of one or more carriers associated with the second carrier group.
47. The WTRU of claim 44, wherein at least one of the first group maximum power and the second group maximum power is based on a power class for the WTRU, a tolerance, a power adjustment, and a maximum allowed transmission power.
48. The WTRU of claim 45, wherein the processor is configured to determine the first group maximum power for the first carrier group using the first indication of the first group maximum power.
49. The WTRU of claim 48, wherein the processor is configured to determine the second group maximum power for the second carrier group using the second indication for the second group maximum power.
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
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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.