Method, device, and system for paging resource selection and system information transmission/acquisition in wireless networks
This disclosure relates generally to adaptive and dynamic paging resource selection and System Information (SI) acquisition in a wireless communication network. Performed by a first network element in a network, the method including: receiving a first message from a second network element of the network; deriving a User Equipment (UE) specific paging resource configuration associated with a UE based on the first message; selecting a paging radio resource based on the UE specific paging resource configuration and based on a radio resource specific paging configuration pre-defined in the first network element; and sending a paging message over the selected paging radio resource to the UE while the UE is in a radio resource control (RRC) inactive state.
1 . A method for wireless communications, performed by a first network element in a network, the method comprising:
receiving a first message from a second network element of the network, the first message comprising a User Equipment (UE) specific paging resource configuration associated with a UE, the UE specific paging resource configuration comprising a paging extended Discontinuous Reception (eDRX) Information, and a Radio Access Network (RAN) paging cycle;
deriving the UE specific paging resource configuration from the first message;
in response to the UE being in a Radio Resource Control (RRC) inactive state, selecting a paging radio resource based on the UE specific paging resource configuration and based on a radio resource specific paging configuration pre-defined in the first network element; and
sending a paging message over the selected paging radio resource to the UE.
2 . The method of claim 1 , wherein the UE specific paging resource configuration further comprises at least one of following parameters associated with the UE:
UE specific Discontinuous Reception (DRX); or
Core Network Assistance Information for the UE in a Radio Resource Control (RRC) inactive state.
3 . The method of claim 1 , wherein the paging radio resource comprises a paging occasion (PO).
4 . The method of claim 1 , wherein the paging message comprises at least one of:
a XnAP paging message; or
an F1AP paging message.
5 . The method of claim 1 , wherein the first message comprises the UE specific paging resource configuration associated with the UE.
6 . The method of claim 5 , wherein the first message comprises a paging message.
7 . The method of claim 1 , wherein the first network element comprises a first base station, the second network element comprises a second base station.
8 . The method of claim 1 , wherein the first network element comprises a gNB-DU, and the second network element comprises a gNB-CU.
9 . A first network element in a network, the first network element comprising a memory for storing computer instructions and a processor in communication with the memory, wherein, when the processor executes the computer instructions, the processor is configured to cause the first network element to:
receive a first message from a second network element of the network, the first message comprising a User Equipment (UE) specific paging resource configuration associated with a UE, the UE specific paging resource configuration comprising a paging extended Discontinuous Reception (eDRX) Information, and a Radio Access Network (RAN) paging cycle;
derive the UE specific paging resource configuration from the first message;
in response to the UE being in a Radio Resource Control (RRC) inactive state, select a paging radio resource based on the UE specific paging resource configuration and based on a radio resource specific paging configuration pre-defined in the first network element; and
send a paging message over the selected paging radio resource to the UE.
10 . The first network element of claim 9 , wherein the UE specific paging resource configuration further comprises at least one of following parameters associated with the UE:
UE specific Discontinuous Reception (DRX); or
Core Network Assistance Information for the UE in an RRC inactive state.
11 . The first network element of claim 9 , wherein the paging radio resource comprises a paging occasion (PO).
12 . The first network element of claim 9 , wherein the paging message comprises at least one of:
a XnAP paging message; or
an F1AP paging message.
13 . The first network element of claim 9 , wherein the first message comprises the UE specific paging resource configuration associated with the UE.
14 . The first network element of claim 13 , wherein the first message comprises a paging message.
15 . The first network element of claim 9 , wherein the first network element comprises a first base station, the second network element comprises a second base station.
16 . The first network element of claim 9 , wherein the first network element comprises a gNB-DU, and the second network element comprises a gNB-CU.
17 . A non-transitory storage medium for storing computer readable instructions, the computer readable instructions, when executed by a processor in a first network element in a network, causing the processor to:
receive a first message from a second network element of the network, the first message comprising a User Equipment (UE) specific paging resource configuration associated with a UE, the UE specific paging resource configuration comprising a paging extended Discontinuous Reception (eDRX) Information, and a Radio Access Network (RAN) paging cycle;
derive the UE specific paging resource configuration associated with a UE from the first message;
in response to the UE being in a Radio Resource Control (RRC) inactive state, select a paging radio resource based on the UE specific paging resource configuration and based on a radio resource specific paging configuration pre-defined in the first network element; and
send a paging message over the selected paging radio resource to the UE.
18 . The non-transitory storage medium of claim 17 , wherein:
the UE specific paging resource configuration further comprises at least one of following parameters associated with the UE:
UE specific Discontinuous Reception (DRX); or
Core Network Assistance Information for the UE in an RRC inactive state; and
the paging radio resource comprises a paging occasion (PO).
19 . The first network element of claim 17 , wherein:
the paging message comprises at least one of:
a XnAP paging message; or
an F1AP paging message; and
the first message comprises the UE specific paging resource configuration associated with the UE.
20 . The first network element of claim 17 , wherein:
the first message comprises a paging message; and
a combination of the first network element and the second network element comprises one of:
the first network element being a first base station, the second network element being a second base station; or
the first network element being a gNB-DU, and the second network element being a gNB-CU.