METHOD AND APPARATUS FOR PROCESSING SIGNAL ASSOCIATED WITH WARNING NOTIFICATION IN WIRELESS COMMUNICATION SYSTEM
First Claim
1. A method of performing radio access congestion control in a wireless communication system using a number of orthogonal frequency-division multiplexing (OFDM) symbols, the method performed by a user equipment (UE) and comprising:
- receiving a paging message including warning indication from a network;
starting a delay timer upon receiving the paging message if the UE belongs to a delay-tolerant category;
acquiring scheduling information included in a first system information block;
receiving a second system information block according to the scheduling information;
determining whether the delay timer expires; and
performing a random access procedure after the delay timer is expired if a session initiation request is triggered.
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Abstract
Based on a proposed method, the UE can initiate a certain timer in order not to allow non-emergency calls when warning notification is given in a certain area. In particular, the UE can receive a paging message including warning indication from a network, and starting a delay timer upon receiving the paging message if the UE belongs to a delay-tolerant category. The UE performs a random access procedure after the delay timer is expired. Namely, the UE that receives the paging message for warning, such as the ETWS and CMAS, immediately check whether it belongs to a certain category proposed by this document to trigger a delay timer to wait for a certain period of time until it attempt the call initiation procedure.
49 Citations
9 Claims
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1. A method of performing radio access congestion control in a wireless communication system using a number of orthogonal frequency-division multiplexing (OFDM) symbols, the method performed by a user equipment (UE) and comprising:
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receiving a paging message including warning indication from a network; starting a delay timer upon receiving the paging message if the UE belongs to a delay-tolerant category; acquiring scheduling information included in a first system information block; receiving a second system information block according to the scheduling information; determining whether the delay timer expires; and performing a random access procedure after the delay timer is expired if a session initiation request is triggered. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A user equipment (UE) for performing radio access congestion control in a wireless communication system using a number of orthogonal frequency-division multiplexing (OFDM) symbols, the UE comprising:
a transceiver configured for; receiving a paging message including warning indication from a network; starting a delay timer upon receiving the paging message if the UE belongs to a delay-tolerant category; acquiring scheduling information included in a first system information block; receiving a second system information block according to the scheduling information; determining whether the delay timer expires; and performing a random access procedure after the delay timer is expired if a session initiation request is triggered.
Specification