Sending third power value for uplink transmission for adding as base station distributed unit
A base station central unit transmits to a first base station distributed unit (BS-DU), a first power value for uplink transmission of a wireless device to the first BS-DU. A second request to add the second BS-DU for the wireless device is transmitted to a second BS-DU. The second request comprises a second power value for uplink transmission of the wireless device to the second BS-DU. A third power value for uplink transmission of the wireless device to the first BS-DU is transmitted to the first BS-DU. The third power value is based on the second power value.
1. A method comprising:
transmitting, by a base station central unit to a first base station distributed unit (BS-DU), a first power value for uplink transmission of a wireless device to the first BS-DU;
transmitting, to a second BS-DU, a second request to add the second BS-DU for the wireless device, wherein the second request comprises a second power value for uplink transmission of the wireless device to the second BS-DU; and
transmitting, to the first BS-DU, a third power value for uplink transmission of the wireless device to the first BS-DU, wherein the third power value is determined based on the second power value for uplink transmission of the wireless device to the second BS-DU.
2. The method of claim 1 , further comprising receiving, from the second BS-DU, a response confirming the addition of the second BS-DU.
3. The method of claim 1 , wherein the first power value is a maximum allowed power for uplink transmission of the wireless device.
4. The method of claim 1 , further comprising receiving, by the base station central unit from the wireless device, a measurement report comprising one or more measurement results of at least one cell of the second BS-DU, wherein the transmitting the second request is based on the measurement report.
5. The method of claim 1 , wherein the second request further comprises an information element indicating a power control mode comprising a mode 1 or a mode 2.
6. The method of claim 1 , wherein:
the third power value is a maximum allowed power for uplink transmission of the wireless device to the first BS-DU; and
the second power value is a maximum allowed power for uplink transmission of the wireless device to the second BS-DU.
7. The method of claim 1 , wherein:
the first BS-DU employs the third power value to control an uplink transmission power of the wireless device; and
the second BS-DU employs the second power value to control an uplink transmission power of the wireless device.
8. The method of claim 1 , wherein the first BS-DU provides, to the wireless device, a master cell group comprising at least one of:
a primary cell; or
one or more secondary cells.
9. The method of claim 1 , wherein the second BS-DU provides, to the wireless device, a secondary cell group comprising at least one of:
a primary secondary cell; or
one or more secondary cells.
10. The method of claim 1 , further comprising transmitting, by the base station central unit to the wireless device, a radio resource control reconfiguration message comprising at least one of:
the third power value; or
the second power value.
11. A base station central unit comprising:
one or more processors; and
memory storing instructions that, when executed by the one or more processors, cause the base station central unit to:
transmit, to a first base station distributed unit (BS-DU), a first power value for uplink transmission of a wireless device to the first BS-DU;
transmit, to a second BS-DU, a second request to add the second BS-DU for the wireless device, wherein the second request comprises a second power value for uplink transmission of the wireless device to the second BS-DU; and
transmit, to the first BS-DU, a third power value for uplink transmission of the wireless device to the first BS-DU, wherein the third power value is determined based on the second power value for uplink transmission of the wireless device to the second BS-DU.
12. The base station central unit of claim 11 , wherein the instructions, when executed by the one or more processors, further cause the base station central unit to receive, from the second BS-DU, a response confirming the addition of the second BS-DU.
13. The base station central unit of claim 11 , wherein the first power value is a maximum allowed power for uplink transmission of the wireless device.
14. The base station central unit of claim 11 , wherein the instructions, when executed by the one or more processors, further cause the base station central unit to receive, from the wireless device, a measurement report comprising one or more measurement results of at least one cell of the second BS-DU, wherein the transmitting the second request is based on the measurement report.
15. The base station central unit of claim 11 , wherein the second request further comprises an information element indicating a power control mode comprising a mode 1 or a mode 2.
16. The base station central unit of claim 11 , wherein:
the third power value is a maximum allowed power for uplink transmission of the wireless device to the first BS-DU; and
the second power value is a maximum allowed power for uplink transmission of the wireless device to the second BS-DU.
17. The base station central unit of claim 11 , wherein:
the first BS-DU employs the third power value to control an uplink transmission power of the wireless device; and
the second BS-DU employs the second power value to control an uplink transmission power of the wireless device.
18. The base station central unit of claim 11 , wherein the first BS-DU provides, to the wireless device, a master cell group comprising at least one of:
a primary cell; or
one or more secondary cells.
19. The base station central unit of claim 11 , wherein the second BS-DU provides, to the wireless device, a secondary cell group comprising at least one of:
a primary secondary cell; or
one or more secondary cells.
20. A system comprising:
a first base station distributed unit (BS-DU);
a second BS-DU; and
a base station central unit comprising:
one or more processors; and
memory storing instructions that, when executed by the one or more processors, cause the base station central unit to:
transmit, to the first BS-DU, a first power value for uplink transmission of a wireless device to the first BS-DU;
transmit, to the second BS-DU, a second request to add the second BS-DU for the wireless device, wherein the second request comprises a second power value for uplink transmission of the wireless device to the second BS-DU; and
transmit, to the first BS-DU, a third power value for uplink transmission of the wireless device to the first BS-DU, wherein the third power value is determined based on the second power value for uplink transmission of the wireless device to the second BS-DU.