Determining information for beam formation across component carriers
Presented are systems, methods, apparatuses, or computer-readable media for reference signaling configuration. A wireless communication device may receive, from a wireless communication node, an indication of a beam state of a first component carrier (CC). The wireless communication device may determine information of a second CC according to the beam state of the first CC.
1. A method, comprising:
receiving, by a wireless communication device from a wireless communication node, an indication of a transmission configuration indicator (TCI) state of a first component carrier (CC); and
determining, by the wireless communication device, a pathloss reference signal (PL-RS) for an uplink signal in a second CC according to a PL-RS identifier associated with the TCI state of the first CC and a PL-RS list configured by control signaling in the second CC; and
determining, by the wireless communication device, power control information of the uplink signal in the second CC according to power control information in an open loop configuration and closed loop configuration associated with the TCI state of the first CC,
wherein the power control information in the open loop configuration comprises at least one of a p0 corresponding to a target receive power, or an alpha corresponding to a compensation coefficient for path loss, and
wherein the power control information in the closed loop configuration indicates a closed loop power adjustment state.
2. The method of claim 1 , wherein the first CC and the second CC are a same CC or different CCs.
3. The method of claim 1 , wherein the uplink signal includes at least one of a physical uplink shared channel (PUSCH), a physical uplink control channel (PUCCH), or a sounding reference signal (SRS).
4. The method of claim 1 , wherein the first CC belongs to a first CC group, and the second CC belongs to a second CC group which is same as or different from the first CC group.
5. The method of claim 1 , wherein the first CC comprises at least one of:
a primary cell (PCell),
a CC having a lowest or highest CC index in a CC group, or
a CC configured via a radio resource control (RRC) signaling.
6. The method of claim 1 , wherein the TCI state of the first CC comprises an only activated TCI state, an M-th TCI state from N activated TCI states, or P TCI states out of the N activated TCI states, where M, N and P are integer values.
7. The method of claim 6 , wherein the TCI state of the first CC is activated via a medium access control control element (MAC CE) or downlink control information (DCI) signaling.
8. A method, comprising:
transmitting, by a wireless communication node to a wireless communication device, an indication of a transmission configuration indicator (TCI) state of a first component carrier (CC); and
causing, by the wireless communication node, the wireless communication device to determine a pathloss reference signal (PL-RS) for an uplink signal in a second CC according to a PL-RS identifier associated with the TCI state of the first CC and a PL-RS list configured by control signaling in the second CC; and
causing the wireless communication device to determine power control information of the uplink signal in the second CC according to power control information in an open loop configuration and closed loop configuration associated with the TCI state of the first CC,
wherein the power control information in the open loop configuration comprises at least one of a p0 corresponding to a target receive power, or an alpha corresponding to a compensation coefficient for path loss, and
wherein the power control information in the closed loop configuration indicates a closed loop power adjustment state.
9. The method of claim 8 , wherein the first CC and the second CC are a same CC or different CCs.
10. The method of claim 8 , wherein the uplink signal includes at least one of a physical uplink shared channel (PUSCH), a physical uplink control channel (PUCCH), or a sounding reference signal (SRS).
11. A wireless communication device, comprising:
at least one processor configured to:
receive, via a receiver from a wireless communication node, an indication of a transmission configuration indicator (TCI) state of a first component carrier (CC); and
determine a pathloss reference signal (PL-RS) for an uplink signal in a second CC according to a PL-RS identifier associated with the TCI state of the first CC and a PL-RS list configured by control signaling in the second CC; and
determine power control information of the uplink signal in the second CC according to power control information in an open loop configuration and closed loop configuration associated with the TCI state of the first CC,
wherein the power control information in the open loop configuration comprises at least one of a p0 corresponding to a target receive power, or an alpha corresponding to a compensation coefficient for path loss, and
wherein the power control information in the closed loop configuration indicates a closed loop power adjustment state.
12. A wireless communication node, comprising:
at least one processor configured to:
transmit, via a transmitter to a wireless communication device, an indication of a transmission configuration indicator (TCI) state of a first component carrier (CC); and
cause the wireless communication device to determine a pathloss reference signal (PL-RS) of an uplink signal in a second CC according to a PL-RS identifier associated with the TCI state of the first CC and a PL-RS list configured by control signaling in the second CC; and
cause the wireless communication device to determine power control information of the uplink signal in the second CC according to power control information in an open loop configuration and closed loop configuration associated with the TCI state of the first CC,
wherein the power control information in the open loop configuration comprises at least one of a p0 corresponding to a target receive power, or an alpha corresponding to a compensation coefficient for path loss, and
wherein the power control information in the closed loop configuration indicates a closed loop power adjustment state.