Multiple component carrier simultaneous transmission control indicator state activation with multiple transmission and reception point transmission
Aspects relate to sending a transmission control indicator (TCI) state activation in a multiple transmission and reception point (multi-TRP) transmission system having multiple component carriers. A component carrier (CC) list of component carrier identifiers (IDs) may be configured to either exclude or include a select CC ID prior to sending a transmission configuration indicator (TCI) state activation within control signaling to at least one user equipment (UE) in the RAN. Depending on whether the CC ID is excluded or included in the CC list, the receiving UEs in the system may be configured to apply a TCI state activation for the CC ID either included or excluded in the CC list, or not apply any TCI state to any CC ID by ignoring the control signaling.
1 . A method for wireless communication in a radio access network (RAN) node for a RAN having a plurality of transmission and reception points (TRPs), comprising:
configuring a component carrier (CC) list of component carrier identifiers (IDs) to exclude a select CC ID prior to sending a transmission configuration indicator (TCI) state activation within control signaling to at least one user equipment (UE) in the RAN, wherein the control signaling comprises a single media access control (MAC) control element (MAC-CE) that is configured to communicate the TCI state activation to the at least one UE for a set of beam IDs shared by multiple CCs used by the at least one UE; and
transmitting the configured CC list to the UE through radio resource control (RRC) signaling.
2 . The method of claim 1 , wherein the MAC-CE signaling is configured such the TCI state activation is configured to signal to the at least one UE that the TCI state activation applies to the select CC ID that is indicated in the MAC-CE signaling.
3 . The method of claim 2 , wherein the select CC ID is excluded from the CC list.
4 . The method of claim 1 , wherein the MAC CE is configured as a TCI States Activation/Deactivation signal where each codepoint in a TCI field in downlink control information DCI indicates at least two different TCI state IDs within the MAC-CE.
5 . The method of claim 4 , where each TCI state ID corresponds to a respective transmission and reception point (TRP) and an associated scheduled physical downlink shared channel (PDSCH).
6 . A radio access network (RAN) node in a RAN of a wireless communication system having a plurality of transmission and reception points (TRPs), comprising:
a wireless transceiver;
a memory; and
a processor communicatively coupled to the wireless transceiver and the memory, wherein the processor and the memory are configured to:
configure a component carrier (CC) list of component carrier identifiers (IDs) to exclude a select CC ID prior to sending a transmission configuration indicator (TCI) state activation within control signaling to at least one user equipment (UE) in the RAN, wherein the control signaling comprises a single media access control (MAC) control element (MAC-CE) that is configured to communicate the TCI state activation to the at least one UE for a set of beam IDs shared by multiple CCs used by the at least one UE; and
transmit the configured CC list to the UE through radio resource control (RRC) signaling.
7 . The RAN node of claim 6 , wherein the MAC-CE signaling is configured such the TCI state activation is configured to signal to the at least one UE that the TCI state activation applies to the select CC ID that is indicated in the MAC-CE signaling.
8 . The RAN node of claim 7 , wherein the select CC ID is excluded from the CC list.
9 . The RAN node of claim 7 , wherein the MAC CE is configured as a TCI States Activation/Deactivation signal where each codepoint in a TCI field in downlink control information DCI indicates at least two different TCI state IDs within the MAC-CE.
10 . The RAN node of claim 9 , where each TCI state ID corresponds to a respective transmission and reception point (TRP) and an associated scheduled physical downlink shared channel (PDSCH).
11 . A method for wireless communication in a radio access network (RAN) node for a RAN having a plurality of transmission and reception points (TRPs), comprising:
configuring a component carrier (CC) list of component carrier identifiers (IDs) to include a select CC ID prior to sending a transmission configuration indicator (TCI) state activation within control signaling to at least one user equipment (UE) in the RAN, wherein the control signaling comprises media access control (MAC) control element (MAC-CE) signaling that is configured to communicate the TCI state activation to the at least one UE for a set of beam IDs shared by multiple CCs used by the at least one UE; and
transmitting the configured CC list to the UE through radio resource control (RRC) signaling.
12 . The method of claim 11 , wherein the MAC CE includes the select CC ID.
13 . The method of claim 11 , wherein the MAC CE is configured as a TCI States Activation/Deactivation signal where each codepoint in a TCI field in downlink control information DCI indicates at least two different TCI state IDs within the MAC-CE.
14 . The method of claim 13 , where each TCI state ID corresponds to a respective transmission and reception point (TRP) and an associated scheduled physical downlink shared channel (PDSCH).
15 . A radio access network (RAN) node in a RAN of a wireless communication system having a plurality of transmission and reception points (TRPs), comprising:
a wireless transceiver;
a memory; and
a processor communicatively coupled to the wireless transceiver and the memory, wherein the processor and the memory are configured to:
configure a component carrier (CC) list of component carrier identifiers (IDs) to include a select CC ID prior to sending a transmission configuration indicator (TCI) state activation within control signaling to at least one user equipment (UE) in the RAN, wherein the control signaling comprises media access control (MAC) control element (MAC-CE) signaling is configured to communicate the TCI state activation to the at least one UE for a set of beam IDs shared by multiple CCs used by the at least one UE; and
transmit the configured CC list to the UE through radio resource control (RRC) signaling.
16 . The RAN node of claim 15 , wherein the MAC CE includes the select CC ID.
17 . The RAN node of claim 15 , wherein the MAC CE is configured as a TCI States Activation/Deactivation signal where each codepoint in a TCI field in downlink control information DCI indicates at least two different TCI state IDs within the MAC-CE.
18 . The RAN node of claim 17 , where each TCI state ID corresponds to a respective transmission and reception point (TRP) and an associated scheduled physical downlink shared channel (PDSCH).