Abstract
Method and apparatus for controlling a transmit power of a mobile station are disclosed. Mobile stations in direct communication on a cross link (XL) receive control parameters from a base station. A first mobile station (a receiving mobile station) may calculate a correction parameter for power offset for transmissions from a second mobile station (a transmitting mobile station) to the first mobile station and send it to the second mobile station. The correction parameter may be generated within the maximum and minimum limits. The second mobile station may calculate a transmit power level for a transmission to the first mobile station based on the correction parameter measurements on resources allocated for cross links for mobile station-to-mobile station direct communications an interference measurement received from the first mobile station and a path loss to the first mobile station.
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4G | 22/12/2016 | ISLD-201706-015 | INTERDIGITAL INC |
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Not Available | 22/12/2016 | ISLD-201706-015 | INTERDIGITAL INC |
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4G | 31/12/2019 | ISLD-201912-087 | INTERDIGITAL INC |
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5G | 31/03/2023 | ISLD-202303-103 | INTERDIGITAL INC |
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Specification Information
Specification Information
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US2012314600A1 | 4G | 22/12/2016 | ISLD-201706-015 | INTERDIGITAL INC |
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US2012314600A1 | 4G | 31/12/2019 | ISLD-201912-087 | INTERDIGITAL INC |
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Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
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Claim
1. A wireless transmit receive unit (WTRU) comprising:
circuitry configured to receive, from a base station associated with WTRU to WTRU direct communication, power control configuration information for use in WTRU to WTRU direct communication; wherein the power control configuration information includes power control configuration information for an uplink channel from the WTRU to the base station and for a data channel for WTRU to WTRU direct communication and for a control channel for WTRU to WTRU direct communication;
the circuitry further configured to receive time and frequency resource information for WTRU to WTRU direct communication;
the circuitry further configured to transmit over the uplink channel to the base station at a power level based on a pathloss value added to a first value received in the power control configuration information;
the circuitry further configured to transmit over the data channel, based on the time and frequency resource information, selectively using a power level based on a pathloss value added to a second value received in the power control configuration information or using a power level not based on the pathloss; and
the circuitry further configured to transmit over the control channel based on the power control configuration information for the control channel.
2. The WTRU of claim 1 wherein the circuitry is further configured to receive a transmit power control command from the base station for use in setting the transmission power level of the data channel.
3. The WTRU of claim 1 wherein the base station is a cellular base station.
4. The WTRU of claim 3 wherein the cellular base station is an LTE or LTE-A base station.
5. A method for use in a wireless transmit receive unit (WTRU), the method comprising:
receiving, from a base station associated with WTRU to WTRU direct communication, power control configuration information for use in WTRU to WTRU direct communication; wherein the power control configuration information includes power control configuration information for an uplink channel from the WTRU to the base station and for a data channel for WTRU to WTRU direct communication and for a control channel for WTRU to WTRU direct communication;
receiving time and frequency resource information for WTRU to WTRU direct communication;
transmitting over the uplink channel to the base station at a power level based on a pathloss value added to a first value received in the power control configuration information;
transmitting over the data channel, based on the received time and frequency resource information, selectively using a power level based on a pathloss value added to a second value received in the power control configuration information or using a power level not based on the pathloss; and
transmitting over the control channel based on the power control configuration information for the control channel.
6. The method of claim 5, further comprising receiving a transmit power control command from the base station for use in setting the transmission power level of the data channel.
7. The method of claim 5, wherein the base station is a cellular base station.
8. The method of claim 5, wherein the cellular base station is an LTE or LTE-A base station.
9. A base station comprising:
circuitry configured to transmit, to a wireless transmit receive unit (WTRU) associated with WTRU to WTRU direct communication, power control configuration information for use in WTRU to WTRU direct communication; wherein the power control configuration information includes power control configuration information for an uplink channel from the WTRU to the base station and for a data channel for WTRU to WTRU direct communication and for a control channel for WTRU to WTRU direct communication;
the circuitry further configured to transmit time and frequency resource information for WTRU to WTRU direct communication;
the circuitry further configured to receive over the uplink channel from the WTRU at a power level based on a pathloss value added to a first value transmitted in the power control configuration information.
10. The base station of claim 9 wherein the circuitry is further configured to transmit a transmit power control command to the WTRU for use in setting the transmission power level of the data channel.
11. The base station of claim 9 wherein the base station is a cellular base station.
12. The base station of claim 9 wherein the base station is an LTE or LTE-A base station.
13. A wireless transmit receive unit (WTRU) comprising:
circuitry configured to receive, from a base station, power control configuration information for use in WTRU to WTRU direct communication; wherein the power control configuration information includes power control configuration information for an uplink channel from the WTRU to the base station and for a data channel for WTRU to WTRU direct communication and for a control channel for WTRU to WTRU direct communication;
the circuitry further configured to transmit over the uplink channel to the base station at a power level based on a pathloss value added to a first value received in the power control configuration information;
the circuitry further configured to transmit over the data channel, selectively using a power level based on a pathloss value added to a second value received in the power control configuration information or using a power level not based on the pathloss; and
the circuitry further configured to transmit over the control channel based on the power control configuration information for the control channel.
14. The WTRU of claim 13 wherein the circuitry is further configured to receive a transmit power control command from the base station for use in setting the transmission power level of the data channel.
15. The WTRU of claim 13 wherein the base station is a cellular base station.
16. The WTRU of claim 15 wherein the cellular base station is an LTE or LTE-A base station.
17. The WTRU of claim 13, further comprising circuitry configured to receive time and frequency resource information for WTRU to WTRU direct communication.
18. The WTRU of claim 13 further comprising circuitry configured to transmit over the data channel based on time and frequency resource information.
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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.