Section: 4.13.8 Enhanced support of discontinuous network coverage for satellite access 4.13.8.1 General
Content: Basic support for discontinuous coverage is specified in clause 4.3.5.2 and clause 4.3.17.7. The present clause 4.13.8 provides additional optional enhancements to discontinuous coverage: - Mobility management and power saving optimization, see clause 4.13.8.2; and - Coverage availability information provisioning to the UE, see clause 4.13.8.3; and - Coverage availability information provisioning to the MME, see clause 4.13.8.4; and - Paging, see clause 4.13.8.5; and - Overload control, see clause 4.13.8.6. In the following, "Enhanced Discontinuous Coverage" functionality includes the following enhancements as listed above: Mobility management and power saving optimization described in clause 4.13.8.2, and Overload control described in clause 4.13.8.6. During Attach or TAU procedures, a UE supporting Enhanced Discontinuous Coverage provides "Enhanced Discontinuous Coverage Support" indication as part of UE Core Network Capability in the Attach Request or TAU Request message to the MME. The MME receiving an Attach Request or a TAU Request message from the UE including "Enhanced Discontinuous Coverage Support" indicates whether Enhanced Discontinuous Coverage is supported by providing the "Enhanced Discontinuous Coverage Support" indication to the UE in the Attach Accept or TAU Accept message.