Cell release mechanism in a wireless device and wireless network
View Patent ↗A wireless device receives from a base station at least one first message that comprises one or more parameters of a plurality of cells. The plurality of cells comprise a secondary cell with no configured physical uplink control channel (PUCCH). The wireless device receives a first activation command indicating activation of the secondary cell. The wireless device receives at least one second message that comprises parameters for reconfiguring the secondary cell to a PUCCH secondary cell with a PUCCH on a condition of first releasing the secondary cell. The wireless device releases the secondary cell. The wireless device adds the PUCCH secondary cell with the PUCCH. The wireless device receives a second activation command indicating activation of the PUCCH secondary cell. The wireless device transmits to the base station channel state information via the PUCCH secondary cell.
1. A method comprising:
receiving, by a wireless device from a base station, at least one first message comprising one or more parameters of a plurality of cells comprising a secondary cell with no configured physical uplink control channel (PUCCH);
receiving a first activation command indicating activation of the secondary cell;
receiving at least one second message comprising parameters for reconfiguring the secondary cell to a PUCCH secondary cell with a PUCCH on a condition of first releasing the secondary cell;
releasing, by the wireless device, the secondary cell;
adding, by the wireless device, the PUCCH secondary cell with the PUCCH;
receiving a second activation command indicating activation of the PUCCH secondary cell; and
transmitting, to the base station, channel state information via the PUCCH secondary cell.
2. The method of claim 1 , wherein the one or more parameters comprise:
a plurality of common parameters; and
a plurality of dedicated parameters.
3. The method of claim 1 , further comprising:
receiving a second message causing the release of the secondary cell in the wireless device, the secondary cell being the PUCCH secondary cell; and
receiving a third message causing configuration of the secondary cell with no PUCCH resources.
4. The method of claim 1 , further comprising:
receiving a second message causing the release of the secondary cell in the wireless device, the secondary cell having no PUCCH resources; and
receiving a third message causing configuration of the secondary cell with PUCCH resources.
5. The method of claim 1 , wherein the secondary cell is deactivated when it is added.
6. The method of claim 1 , wherein the message comprising configuration parameters of a plurality of cells, the plurality of cells being grouped into a plurality of physical uplink control channel (PUCCH) groups comprising:
a primary PUCCH group comprising a primary cell with a primary PUCCH transmitted to a base station; and
a secondary PUCCH group comprising the PUCCH secondary cell with the secondary PUCCH transmitted to the base station.
7. The method of claim 1 , wherein the channel state information comprises a precoding matrix indicator, a rank indicator, and a channel quality indicator.
8. A method comprising:
transmitting, by a base station to a wireless device, at least one first message comprising one or more parameters of a plurality of cells comprising a secondary cell with no configured physical uplink control channel (PUCCH);
transmitting, to the wireless device, a first activation command indicating activation of the secondary cell;
transmitting, to the wireless device, at least one second message comprising parameters for reconfiguring the secondary cell to a PUCCH secondary cell with a PUCCH on a condition of first releasing the secondary cell for the wireless device;
releasing, by the base station, the secondary cell for the wireless device;
adding, by the base station, the PUCCH secondary cell with the PUCCH for the wireless device;
transmitting, by the base station, a second activation command indicating activation of the PUCCH secondary cell for the wireless device; and
receiving, by the base station, channel state information via the PUCCH secondary cell.
9. The method of claim 8 , wherein the one or more parameters comprise:
a plurality of common parameters; and
a plurality of dedicated parameters.
10. The method of claim 8 , further comprising:
transmitting a second message causing the release of the secondary cell in the wireless device, the secondary cell being the PUCCH secondary cell; and
transmitting a third message causing configuration of the secondary cell with no PUCCH resources.
11. The method of claim 8 , further comprising:
transmitting a second message causing the release of the secondary cell in the wireless device, the secondary cell having no PUCCH resources; and
transmitting a third message causing configuration of the secondary cell with PUCCH resources.
12. The method of claim 8 , wherein the secondary cell is deactivated when it is added to the wireless device.
13. The method of claim 8 , wherein the message comprising configuration parameters of a plurality of cells, the plurality of cells being grouped into a plurality of physical uplink control channel (PUCCH) groups comprising:
a primary PUCCH group comprising a primary cell with a primary PUCCH transmitted to a base station; and
a secondary PUCCH group comprising the PUCCH secondary cell with the secondary PUCCH transmitted to the base station.
14. The method of claim 8 , wherein the channel state information comprises a precoding matrix indicator, a rank indicator, and a channel quality indicator.
15. A wireless device comprising:
one or more processors; and
memory storing instructions that, when executed by one or more processors, cause the wireless device to:
receive, from a base station, at least one first message comprising one or more parameters of a plurality of cells comprising a secondary cell with no configured physical uplink control channel (PUCCH);
receive a first activation command indicating activation of the secondary cell;
receive at least one second message comprising parameters for reconfiguring the secondary cell to a PUCCH secondary cell with a PUCCH on a condition of first releasing the secondary cell;
release the secondary cell;
add the PUCCH secondary cell with the PUCCH;
receive a second activation command indicating activation of the PUCCH secondary cell; and
transmit, to the base station, channel state information via the PUCCH secondary cell.
16. The wireless device of claim 15 , wherein the one or more parameters comprise:
a plurality of common parameters; and
a plurality of dedicated parameters.
17. The wireless device of claim 15 , wherein the instructions, when executed, further cause the wireless device to:
receive a second message causing the release of the secondary cell in the wireless device, the secondary cell being the PUCCH secondary cell; and
receive a third message causing configuration of the secondary cell with no PUCCH resources.
18. The wireless device of claim 15 , wherein the instructions, when executed, further cause the wireless device to:
receive a second message causing the release of the secondary cell in the wireless device, the secondary cell having no PUCCH resources; and
receive a third message causing configuration of the secondary cell with PUCCH resources.
19. The wireless device of claim 15 , wherein the secondary cell is deactivated when it is added.
20. The wireless device of claim 15 , wherein the message comprising configuration parameters of a plurality of cells, the plurality of cells being grouped into a plurality of physical uplink control channel (PUCCH) groups comprising:
a primary PUCCH group comprising a primary cell with a primary PUCCH transmitted to a base station; and
a secondary PUCCH group comprising the PUCCH secondary cell with the secondary PUCCH transmitted to the base station.