Systems and methods for DCI field size aligned in CC group

1 . A method comprising:

determining, by a wireless communication node, a configured set comprising one or more fields of a downlink control information (DCI) signaling, the one or more fields to be shared by a plurality of transmissions that are scheduled on a plurality of component carriers (CCs) by the DCI signaling; and

sending, by the wireless communication node to a wireless communication device via a dynamic signaling, an indication comprising a bitmap or index identifying the one or more fields of the DCI signaling from the configured set to be shared by the plurality of transmissions scheduled on the plurality of CCs.

2 . The method of claim 1 , wherein the configured set is configured by the wireless communication node, or is predefined by a specification.

3 . The method of claim 1 , comprising:

sending, by the wireless communication node to the wireless communication device, a radio resource control (RRC) signaling identifying the configured set.

4 . The method of claim 1 , wherein the dynamic signaling comprises a medium access control control element (MAC CE) signaling or another DCI signaling.

5 . The method of claim 1 , wherein the plurality of CCs is configured by the wireless communication node, or is predefined by a specification.

6 . The method of claim 5 , comprising at least one of:

sending, by the wireless communication node to the wireless communication device, a radio resource control (RRC) signaling identifying the plurality of CCs; or

sending, by the wireless communication node to the wireless communication device, a dynamic signaling to indicate one or more of the plurality of CCs.

7 . The method of claim 5 , wherein the plurality of CCs are divided into at least one CC group, the method comprising at least one of:

sending, by the wireless communication node to the wireless communication device, a radio resource control (RRC) signaling to configure CCs in each of the at least one CC group; or

sending, by the wireless communication node to the wireless communication device, a dynamic signaling to indicate the CCs in each of the at least one CC group.

8 . The method of claim 5 , wherein at least one of:

the plurality of CCs are divided into at least one CC group,

at least one anchor CC is configured in each of the at least one CC group,

a first DCI field of a first anchor CC is sharable by more than one CC in a CC group of the first anchor CC, or

transmissions in the CCs of the CC group of the first anchor CC are scheduled based on the first DCI field of the first anchor CC.

9 . The method of claim 8 , wherein a CC in a CC group shares a DCI field of more than one anchor CC of the CC group.

10 . The method of claim 8 , wherein a CC in a CC group shares a DCI field having a largest size among DCI fields of one or more anchor CCs of the CC group.

11 . The method of claim 7 , wherein a CC in a CC group shares a DCI field having a largest size among DCI fields of CCs of the CC group.

12 . The method of claim 7 , wherein at least one of:

a respective DCI field in the DCI signaling, configured for each of the at least one CC group, is independently configured by the wireless communication node, or

all CCs in a CC group of the at least one CC group share a set of DCI fields that is sharable by more than one transmission.

13 . The method of claim 7 , wherein at least one of:

a primary anchor CC is configured by the wireless communication node for all of the at least one CC group,

a secondary anchor CC is configured in each of the at least one CC group,

a respective DCI field in the DCI signaling, configured for each of the at least one CC group, is independently configured by the wireless communication node,

a DCI field of a secondary anchor CC is sharable by more than one CC in a CC group of the secondary anchor CC,

transmissions in the CCs of the CC group of the secondary anchor CC are scheduled based on the DCI field of the secondary anchor CC, or

a DCI field of the primary anchor CC is sharable by more than one CC in a CC group of the primary anchor CC.

14 . The method of claim 13 , wherein at least one of:

a CC in a CC group of the at least one CC group, shares a DCI field of more than one anchor CC of the CC group, or

CCs in the CC group preferentially share a DCI field of the secondary anchor CC of the CC group.

15 . A method comprising:

receiving, by a wireless communication device from a wireless communication node, an indication comprising a bitmap or index identifying one or more fields of a downlink control information (DCI) signaling from a configured set to be shared by a plurality of transmissions scheduled on a plurality of component carriers (CCs),

wherein the configured set comprises the one or more fields of the DCI signaling, the one or more fields to be shared by the plurality of transmissions that are scheduled on the plurality of CCs by the DCI signaling.

16 . A wireless communication device, comprising:

at least one processor configured to:

receive, via a receiver from a wireless communication node, an indication comprising a bitmap or index identifying one or more fields of a downlink control information (DCI) signaling from a configured set to be shared by a plurality of transmissions scheduled on a plurality of component carriers (CCs),

wherein the configured set comprises the one or more fields of the DCI signaling, the one or more fields to be shared by the plurality of transmissions that are scheduled on the plurality of CCs by the DCI signaling.

17 . A wireless communication node, comprising:

at least one processor configured to:

determine a configured set comprising one or more fields of a downlink control information (DCI) signaling, the one or more fields to be shared by a plurality of transmissions that are scheduled on a plurality of component carriers (CCs) by the DCI signaling; and

send, via a transmitter to a wireless communication device via a dynamic signaling, an indication comprising a bitmap or index identifying the one or more fields of the DCI signaling from the configured set to be shared by the plurality of transmissions scheduled on the plurality of CCs.

18 . The wireless communication node of claim 17 , wherein the configured set is configured by the wireless communication node, or is predefined by a specification.

19 . The wireless communication node of claim 17 , wherein the at least one processor is configured to:

send, via the transmitter to the wireless communication device, a radio resource control (RRC) signaling identifying the configured set.

20 . The wireless communication node of claim 17 , wherein the dynamic signaling comprises a medium access control control element (MAC CE) signaling or another DCI signaling.