Group power control for a secondary cell
A wireless device may receive message(s) comprising configuration parameters for cells comprising a primary cell and a secondary cell. The configuration parameters may comprise: a transmit power control (TPC) radio network temporary identifier (RNTI), a primary TPC index for a first physical uplink shared channel (PUSCH) of the primary cell, a secondary TPC index for a second PUSCH of the secondary cell, and periodic resource allocation configuration parameters configuring a periodic resource allocation for the secondary cell. A first downlink control information (DCI) may be received indicating activation of the periodic resource allocation. A common search space for a second DCI associated with the TPC RNTI may be monitored. The second DCI may comprise a sequence of TPC commands. The secondary TPC index may identify a TPC command in the sequence. Transport blocks may be transmitted by employing transmission parameter(s) in the first DCI and the TPC command.
1. A method comprising:
receiving, by a wireless device, one or more messages comprising configuration parameters for a plurality of cells comprising a primary cell and a secondary cell, wherein the configuration parameters comprise:
a transmit power control (TPC) radio network temporary identifier (RNTI);
a primary TPC index for a first physical uplink shared channel (PUSCH) of the primary cell;
a secondary TPC index for a second PUSCH of the secondary cell; and
periodic resource allocation configuration parameters configuring a periodic resource allocation for transmission of transport blocks via the second PUSCH of the secondary cell;
receiving first downlink control information (DCI) indicating activation of the periodic resource allocation for transmission of transport blocks via the second PUSCH of the secondary cell;
monitoring a common search space for a-second DCI associated with the TPC RNTI, wherein the second DCI comprises a sequence of TPC commands, and wherein the secondary TPC index indicates a TPC command in the sequence; and
transmitting, via the second PUSCH and based on the first DCI and the TPC command, one or more transport blocks.
2. The method of claim 1 , wherein the periodic resource allocation is semi-persistent scheduling.
3. The method of claim 1 , wherein the common search space is on the primary cell or on the secondary cell.
4. The method of claim 3 , further comprising receiving a message indicating whether the wireless device is expected to monitor the common search space.
5. The method of claim 1 , wherein a format of the second DCI is DCI format 3 or DCI format 3A.
6. The method of claim 1 , wherein the TPC command comprises two bits based on the second DCI being DCI format 3, and wherein the TPC command comprises a single bit based on the second DCI being DCI format 3A.
7. The method of claim 6 , wherein the two bits represent minus one decibel (dB), zero dB, plus one dB, or three dB, and wherein the single bit represents minus one dB or plus one dB.
8. The method of claim 1 , wherein the configuration parameters further comprise a second TPC RNTI.
9. A wireless device comprising:
one or more processors; and
memory storing instructions that, when executed by the one or more processors, cause the wireless device to:
receive one or more messages comprising configuration parameters for a plurality of cells comprising a primary cell and a secondary cell, wherein the configuration parameters comprise:
a transmit power control (TPC) radio network temporary identifier (RNTI);
a primary TPC index for a first physical uplink shared channel (PUSCH) of the primary cell;
a secondary TPC index for a second PUSCH of the secondary cell; and
periodic resource allocation configuration parameters configuring a periodic resource allocation for transmission of transport blocks via the second PUSCH of the secondary cell; and
receive first downlink control information (DCI) indicating activation of the periodic resource allocation for transmission of transport blocks via the second PUSCH of the secondary cell;
monitor a common search space for a-second DCI associated with the TPC RNTI, wherein the second DCI comprises a sequence of TPC commands, and wherein the secondary TPC index indicates a TPC command in the sequence; and
transmit, via the second PUSCH and based on the first DCI and the TPC command, one or more transport blocks.
10. The wireless device of claim 9 , wherein the periodic resource allocation is semi-persistent scheduling.
11. The wireless device of claim 9 , wherein the common search space is on the primary cell or on the secondary cell.
12. The wireless device of claim 11 , wherein the instructions, when executed, further cause the wireless device to receive a message indicating whether the wireless device is expected to monitor the common search space.
13. The wireless device of claim 9 , wherein a format of the second DCI is DCI format 3 or DCI format 3A.
14. The wireless device of claim 9 , wherein the TPC command comprises two bits based on the second DCI being DCI format 3, and wherein the TPC command comprises a single bit based on the second DCI being DCI format 3A.
15. The wireless device of claim 14 , wherein the two bits represent minus one decibel (dB), zero dB, plus one dB, or three dB, and wherein the single bit represents minus one dB or plus one dB.
16. The wireless device of claim 9 , wherein the configuration parameters further comprise a second TPC RNTI.
17. A system comprising:
a wireless device; and
a base station;
wherein the base station is configured to:
send one or more messages comprising configuration parameters for a plurality of cells comprising a primary cell and a secondary cell, wherein the configuration parameters comprise:
a transmit power control (TPC) radio network temporary identifier (RNTI);
a primary TPC index for a first physical uplink shared channel (PUSCH) of the primary cell;
a secondary TPC index for a second PUSCH of the secondary cell; and
periodic resource allocation configuration parameters configuring a periodic resource allocation for transmission of transport blocks via the second PUSCH of the secondary cell; and
send first downlink control information (DCI) indicating activation of the periodic resource allocation for transmission of transport blocks via the second PUSCH of the secondary cell; and
wherein the wireless device is configured to:
monitor a common search space for second DCI associated with the TPC RNTI, wherein the second DCI comprises a sequence of TPC commands, and wherein the secondary TPC index indicates a TPC command in the sequence; and
send, via the second PUSCH and based on the first DCI and the TPC command, one or more transport blocks.
18. The system of claim 17 , wherein the periodic resource allocation is semi-persistent scheduling.
19. The system of claim 17 , wherein the common search space is on the primary cell or on the secondary cell.
20. The system of claim 19 , wherein the wireless device is further configured to receive a message indicating whether the wireless device is expected to monitor the common search space.
21. The system of claim 17 , wherein a format of the second DCI is DCI format 3 or DCI format 3A.
22. The system of claim 17 , wherein the TPC command comprises two bits based on the second DCI being DCI format 3, and wherein the TPC command comprises a single bit based on the second DCI being DCI format 3A.
23. The system of claim 22 , wherein the two bits represent minus one decibel (dB), zero dB, plus one dB, or three dB, and wherein the single bit represents minus one dB or plus one dB.
24. The system of claim 17 , wherein the configuration parameters further comprise a second TPC RNTI.