Enabling on-demand system information requests
Apparatuses, methods, and systems are disclosed for enabling on-demand system information requests. One method ( 600 ) includes receiving ( 602 ) configuration information corresponding to an on-demand system information request procedure, wherein: the configuration information corresponds to a radio resource control connected state; the configuration information comprises an enable indication; and the enable indication indicates whether the on-demand system information request procedure is enabled for the radio resource control connected state.
1 . A method at a user equipment (UE), the method comprising:
receiving, from a base station, configuration information corresponding to on-demand system information (SI), wherein the configuration information is received in a first radio resource control (RRC) configuration message during an RRC connected state, wherein the configuration information comprises a flag that explicitly indicates whether dedicated on-demand SI is enabled during the RRC connected state, wherein the on-demand SI comprises one or more system information blocks (SIBs);
transmitting, to the base station, a dedicated message requesting one or more on-demand SIBs based on the dedicated on-demand SI being enabled; and
receiving, from the base station, the requested one or more on-demand SIBs in a second RRC configuration message.
2 . The method of claim 1 , wherein the second RRC configuration message comprises a transmission flag that indicates whether all or part of the system information blocks requested in the request message for on-demand system information blocks are to be transmitted in a broadcast manner.
3 . The method of claim 1 , wherein the second RRC configuration message comprises a change flag that indicates whether system information scheduling information has changed.
4 . The method of claim 1 , wherein the second RRC configuration message comprises scheduling information for system information blocks requested in the request message for on-demand system information blocks.
5 . The method of claim 1 , wherein the second RRC configuration message comprises a status flag indicating whether system information blocks requested in the request message for on-demand system information blocks are transmitted in a plurality of response messages.
6 . The method of claim 1 , further comprising retransmitting the request message for on-demand system information blocks as a result of not receiving at least one requested system information block in the second RRC configuration message or in a broadcast manner.
7 . A user equipment (UE), comprising:
at least one memory; and
at least one processor coupled with the at least one memory and configured to cause the UE to:
receive, from a base station, configuration information corresponding to on-demand system information (SI), wherein the configuration information is received in a first radio resource control (RRC) configuration message during an RRC connected state, wherein the configuration information comprises a flag that explicitly indicates whether dedicated on-demand SI is enabled during the RRC connected state, wherein the on-demand SI comprises one or more system information blocks (SIBs);
transmit, to the base station, a dedicated message requesting one or more on-demand SIBs based on the dedicated on-demand SI being enabled; and
receive, from the base station, the requested one or more on-demand SIBs in a second RRC configuration message.
8 . The UE of claim 7 , wherein the second RRC configuration message comprises a transmission flag that indicates whether all or part of the system information blocks requested in the request message for on-demand system information blocks are to be transmitted in a broadcast manner.
9 . The UE of claim 7 , wherein the second RRC configuration message comprises a change flag that indicates whether system information scheduling information has changed.
10 . The UE of claim 7 , wherein the second RRC configuration message comprises scheduling information for system information blocks requested in the request message for on-demand system information blocks.
11 . The UE of claim 7 , wherein the second RRC configuration message comprises a status flag indicating whether system information blocks requested in the request message for on-demand system information blocks are transmitted in a plurality of response messages.
12 . The UE of claim 7 , wherein the at least one processor is configured to cause the UE to retransmit the request message for on-demand system information blocks as a result of not receiving at least one requested system information block in the second RRC configuration message or in a broadcast manner.
13 . A base station, comprising:
at least one memory; and
at least one processor coupled with the at least one memory and configured to cause the base station to:
transmit, to a user equipment (UE), configuration information corresponding to on-demand system information (SI), wherein the configuration information is transmitted in a first radio resource control (RRC) configuration message during an RRC connected state, wherein the configuration information comprises a flat that explicitly indicates whether dedicated on-demand SI is enabled during the RRC connected state, wherein the on-demand SI comprises one or more system information blocks (SIBs); and
receive, from the UE, a dedicated message requesting one or more on-demand SIBs based on the dedicated on-demand SI being enabled; and
transmit, to the UE, the requested one or more on-demand SIBs in a second RRC configuration message.