Methods for suspending inactive when resuming and resuming inactive when suspending
According to an aspect, a wireless device, operating in a wireless network, handles transitions from Radio Resource Control, RRC, connected state to an RRC inactive state. The wireless device receives ( 1502 ), from the wireless network, a message indicating either that the wireless device is to enter the RRC inactive state or that the wireless device is to remain in the RRC inactive state. The wireless device, responsive to the message, uses ( 1504 ), for inactive state operation, at least one previously stored inactive state parameter corresponding to a parameter omitted from the message.
1. A method, in a wireless device operating in a wireless network, for handling transitions from Radio Resource Control (RRC) connected state to an RRC inactive state, the method comprising:
receiving, from the wireless network, a message indicating either that the wireless device is to enter the RRC inactive state or that the wireless device is to remain in the RRC inactive state; and
responsive to the message, using, for inactive state operation, at least one previously stored inactive state parameter corresponding to a parameter omitted from the message, wherein the at least one previously stored inactive state parameter comprises any one or more of the following:
a paging configuration parameter;
a next hop chaining count for refreshing keys at subsequent resume requests;
an early data transmission configuration parameter;
a wait time parameter to indicate the wireless device shall not try to resume or connected to a cell until a wait timer expires;
a cell reselection priority parameter;
frequency redirection information; and
a cell quality derivation parameter.
2. The method of claim 1 , wherein the message comprises an RRC Resume Reject message or an RRC Release message.
3. The method of claim 1 , wherein the RRC inactive state is an RRC_INACTIVE state according to standards for New Radio (NR).
4. The method of claim 1 , wherein the RRC inactive state is a suspend state according to standards for Long-Term Evolution (LTE).
5. The method of claim 1 , wherein the message comprises one or more inactive state parameters corresponding to previously stored inactive state parameters in the wireless device, the method further comprising replacing the corresponding previously stored inactive state parameters with the one or more inactive state parameters in the message and using the inactive state parameters in the message for inactive state operation.
6. A wireless device comprising transceiver circuitry and processing circuitry operatively associated with the transceiver circuitry and configured to perform the method of claim 1 .
7. A method, in a wireless device operating in a wireless network, for handling transitions from Radio Resource Control (RRC) connected state to an RRC inactive state, the method comprising:
autonomously entering the RRC inactive state; and
using, for inactive state operation, at least one previously stored inactive state parameter, wherein the at least one previously stored inactive state parameter comprises any one or more of the following:
a paging configuration parameter;
a next hop chaining count for refreshing keys at subsequent resume requests;
an early data transmission configuration parameter;
a wait time parameter to indicate the wireless device shall not try to resume or connected to a cell until a wait timer expires;
a cell reselection priority parameter;
frequency redirection information;
a cell quality derivation parameter.
8. The method of claim 7 , wherein the RRC inactive state is an RRC_INACTIVE state according to standards for New Radio (NR).
9. The method of claim 7 , wherein the RRC inactive state is a suspend state according to standards for Long-Term Evolution (LTE).
10. A wireless device comprising transceiver circuitry and processing circuitry operatively associated with the transceiver circuitry and configured to perform the method of claim 7 .
11. A method, in a wireless device operating in a wireless network, for handling transitions from Radio Resource Control (RRC) connected state to an RRC inactive state, the method comprising:
transitioning from the RRC inactive state to the RRC connected state; and
storing at least one inactive state parameter for use when subsequently re-entering the RRC inactive state, wherein the at least one inactive state parameter comprises any one or more of the following:
a paging configuration parameter;
an early data transmission configuration parameter;
a wait time parameter to indicate the wireless device shall not try to resume or connected to a cell until a wait timer expires;
a cell reselection priority parameter;
frequency redirection information; and
a cell quality derivation parameter.
12. The method of claim 11 , wherein the RRC inactive state is an RRC_INACTIVE state according to standards for New Radio (NR).
13. The method of claim 11 , wherein the RRC inactive state is a suspend state according to standards for Long-Term Evolution (LTE).
14. A wireless device comprising transceiver circuitry and processing circuitry operatively associated with the transceiver circuitry and configured to perform the method of claim 11 .
15. A method, in a wireless device operating in a wireless network, for handling transitions from Radio Resource Control (RRC) connected state to an RRC inactive state, the method comprising:
receiving, from the wireless network, a message indicating either that the wireless device is to enter the RRC inactive state or that the wireless device is to remain in the RRC inactive state, wherein the message comprises one or more inactive state parameters corresponding to previously stored inactive state parameters in the wireless device; and
responsive to the message, using, for inactive state operation, at least one previously stored inactive state parameter corresponding to a parameter omitted from the message, wherein the at least one previously stored inactive state parameter comprises any one or more of the following:
a paging configuration parameter;
a next hop chaining count for refreshing keys at subsequent resume requests;
an early data transmission configuration parameter;
a wait time parameter to indicate the wireless device shall not try to resume or connected to a cell until a wait timer expires;
a cell reselection priority parameter;
frequency redirection information;
a cell quality derivation parameter; and
a measurement configuration parameter to be used in the RRC inactive state; and
replacing the previously stored inactive state parameters corresponding to the one or more inactive state parameters in the message with the one or more inactive state parameters in the message and using the inactive state parameters in the message for inactive state operation.
16. The method of claim 15 , wherein the message comprises an RRC Resume Reject message or an RRC Release message.
17. The method of claim 15 , wherein the RRC inactive state is an RRC_INACTIVE state according to standards for New Radio (NR).
18. The method of claim 15 , wherein the RRC inactive state is a suspend state according to standards for Long-Term Evolution (LTE).
19. A wireless device comprising transceiver circuitry and processing circuitry operatively associated with the transceiver circuitry and configured to perform the method of claim 15 .