Abstract
The invention relates to methods for informing an eNodeB on the transmit power status of a user equipment in a mobile communication system using component carrier (CC) aggregation. Furthermore, the invention is also related to the implementation of these methods by hardware and their implementation in software. The invention proposes procedures that allow the eNodeB to recognize the power usage status of a UE in a communication system using carrier aggregation. The UE indicates to the eNodeB, when the UE is close to using its total maximum UE transmit power or when it has exceeded same. This is achieved by the UE including indicator(s) and/or new MAC CEs to one or more protocol data units transmitted on respective component carriers within a single sub-frame that is providing the eNodeB with power status information. The MAC CEs may report a per-UE power headroom. Alternatively, the MAC CEs may report per-CC power headrooms and/or power reductions applied to the respective uplink CCs.
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4G | 05/08/2013 | ISLD-201309-038 | PANASONIC CORP | No | Family Member | ||||
4G | 20/09/2018 | ISLD-201812-010 | SUN PATENT TRUST | Yes | Family Member | ||||
4G | 13/12/2020 | ISLD-202012-017 | SUN PATENT TRUST |
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Specification Information
Specification Information
Technologies
Family Information
All Granted Patents In Patent Family : | ---- |
All Pending Patents In Patent Family : | ---- |
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WO2011050921A1 | 4G | 05/08/2013 | ISLD-201309-038 | PANASONIC CORP | Yes | Basis Patent | ||||
WO2011050921A1 | 4G | 20/09/2018 | ISLD-201812-010 | SUN PATENT TRUST | Yes | Basis Patent | ||||
WO2011050921A1 | 4G | 13/12/2020 | ISLD-202012-017 | SUN PATENT TRUST |
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AU2010311871A1 | 4G | 05/08/2013 | ISLD-201309-038 | PANASONIC CORP | Yes | Family Member | ||||
AU2010311871A1 | 4G | 20/09/2018 | ISLD-201812-010 | SUN PATENT TRUST | Yes | Family Member | ||||
AU2010311871A1 | 4G | 13/12/2020 | ISLD-202012-017 | SUN PATENT TRUST |
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AU2010311871B2 | 4G | 20/09/2018 | ISLD-201812-010 | SUN PATENT TRUST | Yes | Family Member | ||||
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EP3383114A1 | 5G | 13/12/2020 | ISLD-202012-017 | SUN PATENT TRUST |
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ES2688231T3 | 4G | 05/08/2013 | ISLD-201309-038 | PANASONIC CORP | No | Family Member | ||||
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HRP20181486T1 | 4G | 20/09/2018 | ISLD-201812-010 | SUN PATENT TRUST | No | Family Member | ||||
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Technologies
Product
Use Cases
Services
Claim
1. A method implemented in a base station, the method comprising:
receiving a power status report from a user equipment (UE) operating in carrier aggregation in which two or more component carriers (CCs) are aggregated, wherein the power status report includes:
(i) a CC specific maximum transmission power, PCMAX,c, for each configured and activated uplink CC, for which a resource is assigned for the UE, wherein PCMAX,c shall be set within following bounds:
P CMAX _ L,c <=P CMAX,c <=P CMAX _ H,c
?where PCMAX _ L,c is a lower bound and PCMAX _ H,c is a higher bound of a CC specific maximum transmission power, and
(ii) a power headroom report indicative of a difference between the CC specific maximum transmission power, PCMAX,c, and an estimated UE transmit power, per each configured and activated uplink CC; and
controlling communication with the UE based on the received power status report.
2. The method according to claim 1, wherein the power status report is triggered at activation of a configured uplink CC.
3. The method according to claim 1, wherein the power status report is for Uplink Shared Channel (UL-SCH) transmission per configured and activated uplink CC.
4. The method according to claim 1, wherein the power status report for a sub-frame takes into account a transmission power of a Physical Uplink Control Channel (PUCCH) used by the UE in the same sub-frame.
5. The method according to claim 1, wherein in case no resource is assigned for the UE in a sub-frame, the power status report takes into account a predefined uplink grant or a predefined Physical Uplink Shared Channel (PUSCH) power.
6. The method according to claim 1, wherein the (ii) power headroom report and the (i) CC specific maximum transmission power, PCMAX,c, of each configured and activated uplink CC are included in a Media Access Control (MAC) control element in a bitmap form, wherein a bit set at a certain position in the bitmap indicates the presence of a power headroom report field for a corresponding CC.
7. The method according to claim 1, wherein the power status report includes indicators that indicate, for each (ii) power headroom report, the presence of the associated (i) CC specific maximum transmission power, PCMAX,c, respectively.
8. The method according to claim 1, wherein the CC specific maximum transmission power, PCMAX,c, is a nominal UE maximum transmit power.
9. A base station comprising:
a receiver, which, in operation, receives a power status report from a user equipment (UE) operating in carrier aggregation in which two or more component carriers (CCs) are aggregated, wherein the power status report includes:
(i) a CC specific maximum transmission power, PCMAX,c, for each configured and activated uplink CC, for which a resource is assigned for the UE, wherein PCMAX,c shall be set within following bounds:
P CMAX _ L,c <=P CMAX,c <=P CMAX _ H,c
?where PCMAX _ L,c is a lower bound and PCMAX _ H,c is a higher bound of a CC specific maximum transmission power, and
(ii) a power headroom report indicative of a difference between the CC specific maximum transmission power, PCMAX,c, and an estimated UE transmit power, per each configured and activated uplink CC; and
circuitry, which is coupled to the receiver and which, in operation, controls communication with the UE based on the received power status report.
10. The base station according to claim 9, wherein the power status report is triggered at activation of a configured uplink CC.
11. The base station according to claim 9, wherein the power status report is for Uplink Shared Channel (UL-SCH) transmission per configured and activated uplink CC.
12. The base station according to claim 9, wherein the power status report for a sub-frame takes into account a transmission power of a Physical Uplink Control Channel (PUCCH) used by the UE in the same sub-frame.
13. The base station according to claim 9, wherein in case no resource is assigned for the UE in a sub-frame, the power status report takes into account a predefined uplink grant or a predefined Physical Uplink Shared Channel (PUSCH) power.
14. The base station according to claim 9, wherein the (ii) power headroom report and the (i) CC specific maximum transmission power, PCMAX,c, of each configured and activated uplink CC are included in a Media Access Control (MAC) control element in a bitmap form, wherein a bit set at a certain position in the bitmap indicates the presence of a power headroom report field for a corresponding CC.
15. The base station according to claim 9, wherein the power status report includes indicators that indicate, for each (ii) power headroom report, the presence of the associated (i) CC specific maximum transmission power, PCMAX,c, respectively.
16. The base station according to claim 9, wherein the CC specific maximum transmission power, PCMAX,c, is a nominal UE maximum transmit power.
Associated Portfolios
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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.