Radio access network paging area configuration
View Patent ↗A base station receives from a second base station, first packet(s) associated with a wireless device. The base station receives from a core network entity, second packet(s) for the wireless device when in an RRC inactive state. The base station transmits a first RAN paging message to a third base station of a RAN area associated with the wireless device in response to a time duration being larger than a time value. The time duration is the time between the receiving of the first packet(s) and the receiving of the second packet(s). The base station transmits a second RAN paging message to the second base station regardless of the time duration being smaller or larger than the time value. The base station transmits second packet(s) to the second or third base base station based on a response received for the first or second RAN paging message.
1. A method comprising:
receiving, by a first base station from a second base station, at least one first packet associated with a wireless device;
receiving, by the first base station from a core network entity, at least one second packet for the wireless device when the wireless device is in a radio resource control (RRC) inactive state;
transmitting, by the first base station, a first RAN paging message to a third base station of a radio access network (RAN) area associated with the wireless device and in response to a first time duration being larger than a first time value, wherein the first time duration comprises a time duration between the receiving of the at least one first packet and the receiving of the at least one second packet;
transmitting, by the first base station, a second RAN paging message to the second base station regardless of the first time duration being smaller or larger than the first time value; and
transmitting, by the first base station, the at least one second packet to one of the second base station or the third base station based on a response received for one of the first RAN paging message or the second RAN paging message.
2. The method of claim 1 , wherein the RAN area is associated with a RAN notification area.
3. The method of claim 1 , wherein the first RAN paging message or the second RAN paging message comprises:
an identifier of the wireless device; and
a RAN area information of the RAN area.
4. The method of claim 1 , wherein the at least one first packet is associated with at least one of:
an uplink data transmission of the wireless device being in the RRC inactive state;
a data transmission;
a RAN notification area update procedure;
a state transition of the wireless device from a RRC inactive state connected state to the RRC inactive state.
5. The method of claim 1 , wherein the first time value is based on moving speed of the wireless device.
6. The method of claim 1 , wherein the first base station keeps a wireless device context of the wireless device at least during a time in which the wireless device is in the RRC inactive state, the wireless device context comprising at least one of:
a bearer configuration information;
a logical channel configuration information;
a packet data convergence protocol configuration information; or
a security information.
7. The method of claim 1 , wherein the first base station is associated with the RAN area.
8. The method of claim 1 , further comprising transmitting, by the first base station to the wireless device, at least one RRC message comprising RAN area information of the RAN area, wherein the at least one RRC message indicating a state transition of the wireless device to the RRC inactive state.
9. The method of claim 1 , further comprising:
transmitting, by the second base station, a first paging message via a first cell of the RAN area associated with the wireless device in response to:
receiving the second RAN paging message; and
a second time duration being larger than a second time value, wherein the second time duration comprises a time duration between receiving the at least one first packet from the wireless device and the receiving of the second RAN paging message; and
transmitting, by the second base station, a second paging message via a second cell regardless of the second time duration being smaller or larger than the second time value, wherein the second base station received the at least one first packet from the wireless device via the second cell.
10. The method of claim 9 , further comprising transmitting, by the second base station, the at least one second packet via one of the first cell or the second cell based on a response received for one of the first paging message or the second paging message.
11. A base station comprising:
one or more processors; and
memory storing instructions that, when executed by the one or more processors, cause the base station to:
receive, from a second base station, at least one first packet associated with a wireless device;
receive, from a core network entity, at least one second packet for the wireless device when the wireless device is in a radio resource control (RRC) inactive state;
transmit a first RAN paging message to a third base station of a radio access network (RAN) area associated with the wireless device and in response to a first time duration being larger than a first time value, wherein the first time duration comprises a time duration between the receiving of the at least one first packet and the receiving of the at least one second packet;
transmit a second RAN paging message to the second base station regardless of the first time duration being smaller or larger than the first time value; and
transmit the at least one second packet to one of the second base station or the third base station based on a response received for one of the first RAN paging message or the second RAN paging message.
12. The base station of claim 11 , wherein the RAN area is associated with a RAN notification area.
13. The base station of claim 11 , wherein the first RAN paging message or the second RAN paging message comprises:
an identifier of the wireless device; and
a RAN area information of the RAN area.
14. The base station of claim 11 , wherein the at least one first packet is associated with at least one of:
an uplink data transmission of the wireless device being in the RRC inactive state;
a data transmission;
a RAN notification area update procedure;
a state transition of the wireless device from a RRC inactive state connected state to the RRC inactive state.
15. The base station of claim 11 , wherein the first time value is based on moving speed of the wireless device.
16. The base station of claim 11 , wherein the base station keeps a wireless device context of the wireless device at least during a time in which the wireless device is in the RRC inactive state, the wireless device context comprising at least one of:
a bearer configuration information;
a logical channel configuration information;
a packet data convergence protocol configuration information; or
a security information.
17. The base station of claim 11 , wherein the base station is associated with the RAN area.
18. The base station of claim 11 , wherein the instructions, when executed by the one or more processors, further cause the base station to transmit, to the wireless device, at least one RRC message comprising RAN area information of the RAN area, wherein the at least one RRC message indicating a state transition of the wireless device to the RRC inactive state.
19. The base station of claim 11 , wherein the second base station further:
transmit, a first paging message via a first cell of the RAN area associated with the wireless device, in response to:
receiving the second RAN paging message; and
a second time duration being larger than a second time value, wherein the second time duration comprises a time duration between receiving the at least one first packet from the wireless device and the receiving of the second RAN paging message; and
transmit a second paging message via a second cell regardless of the second time duration being smaller or larger than the second time value, wherein the second base station received the at least one first packet from the wireless device via the second cell.
20. The base station of claim 19 , wherein the second base station further transmits the at least one second packet via one of the first cell or the second cell based on a response received for one of the first paging message or the second paging message.