Abstract:
Technology for facilitating circuit switched fallback (CSFB) for a user equipment (UE) is disclosed. A mobility management entity (MME) can receive an optimized CSFB capability indicator from the UE. The MME can receive a requested service type associated with the UE. The MME can initiate a single radio voice call continuity (SR-VCC) handover of the UE to a circuit switched network based on the optimized CSFB capability of the UE. The MME can send an S1 application protocol (S1-AP) request message to an evolved node B (eNB). The S1AP message can include the optimized CSFB capability indicator and a single radio voice call continuity (SRVCC) indicator for the UE. The MME can receive a handover required message from the eNB.
Abstract:
Techniques described herein may enable Evolved Packet Core (EPC) devices (e.g., Mobility Management Entities (MMEs), Serving Gateways (SGWs), or Packet Data Network Gateways (PGWs)) to transfer a connection with a User Equipment (UE) from one EPC device to another EPC device without a break in service for the UE. The transfer may occur in response to an EPC device being overloaded, an EPC device being added or removed from a logical group of EPC devices, or in response one EPC device becoming more appropriate for the UE than another EPC device (e.g., due to a change in the geographic location of the UE). EPC devices may be implemented as virtual network functions, and the transfer of the UE may occur while the UE is in an active mode or an idle mode.
Abstract:
Apparatuses and methods for control of small data transmission by a user equipment (UE) are described herein. The UE may determine that data to be transmitted by the UE is small data if a size of the data is below a threshold. The UE may transmit a message indicating that the UE shall be transmitting small data responsive to determining that data to be transmitted by the UE is small data. The UE may receive a radio resource control (RRC) signal from an evolved Node B (eNodeB) that includes a logical channel identifier (LCID) of a small data radio bearer (SDRB) configured for transmission of small data. The UE may transmit small data on the SDRB subsequent to receiving the RRC signal from the eNodeB. The UE may refrain from transmitting other than small data on the SDRB. Other apparatuses and methods are described.
Abstract:
A cellular IoT (CIoT) device can comprise a coverage and/or processing constrained device e.g., devices operating primarily MTC or M2M (e.g., sensor devices, controller devices, etc.). These devices can have limited or no user interface, and can be used for machines or devices with little mobility. CIoT devices can be deployed in usage scenarios such as home automation (e.g., security, appliances, energy packages, etc.), industry automation, and smart cities with low-power devices (e.g., devices having a battery life of several years), and can be easily installed and operated in challenging coverage conditions, such as lower or basement levels of buildings. CIoT devices can be provisioned to connect to a cellular carrier network and an associated CSP. The CSP can execute end2end solutions (e.g., service portal, service sign-up, etc.) while the cellular carrier can provide the bulk data pipe to the CSP.
Abstract:
Technology for providing core network assistance information from a mobility management entity (MME) in an evolved packet core (EPC) is disclosed. An average radio resource control (RRC) connected state time for a UE is determined. An average RRC idle state time for the UE is also determined. An amount of time that the UE spends in cells of the EPC is identified to determine a number of handover procedures between cells in a selected time period. The core network assistance information communicated to a serving eNB of the UE to enable the serving eNB to reduce UE state transitions for the UE.
Abstract:
An evolved NodeB (eNB), user equipment (UE) and mobility management entity (MME), as well as method of communicating using a power saving mode (PSM) are generally described. A PSM configuration indication of the UE may be received at the eNB from the UE or MME in an Initial UE Context Setup Request, a UE Context Modify Request, core network as-eNB MME sistance information, or a dedicated message to the eNB. The eNB may adjust the time for transmitting to the UE an RRC connection release message based on the PSM configuration indication. The eNB may determine whether the UE is in a connection mode and the inactivity timer of the eNB having reached the activation timer of the PSM configuration indication, transmit the RRC connection release message to the MME. The PSM configuration may be provided between eNBs during handover.
Abstract:
Embodiments of techniques and systems for extended discontinuous reception (DRX) are described herein. In some embodiments, a user equipment (UE) configured for extended DRX may include receiver circuitry and paging circuitry. The receiver circuitry may be configured to receive a system frame number from an eNB and receive extension data from the eNB. The paging circuitry may be configured to determine an augmented system frame number based on the system frame number and the extension data, determine a paging frame number based on the extension data, and monitor for paging occasions when the augmented system frame number is equal to the paging frame number. Other embodiments may be described and/or claimed.
Abstract:
Technology for providing core network assistance information from a mobility management entity (MME) in an evolved packet core (EPC) is disclosed. An average radio resource control (RRC) connected state time for a UE is determined. An average RRC idle state time for the UE is also determined. An amount of time that the UE spends in cells of the EPC is identified to determine a number of handover procedures between cells in a selected time period. The core network assistance information communicated to a serving eNB of the UE to enable the serving eNB to reduce UE state transitions for the UE.
Abstract:
Apparatuses of wireless communication systems are disclosed. A User Equipment (UE) stores an enhanced coverage restricted parameter from a Mobility Management Entity (MME), and operates in the enhanced coverage mode if the enhanced coverage restricted parameter indicates that the UE is not restricted. The MME decodes an enhanced coverage restricted parameter received from a Home Subscriber Server (HSS), and generates a message to send the enhanced coverage restricted parameter to the UE. An eNode B decodes a message from the UE, the message indicating that the UE supports restriction for use of enhanced coverage. The eNB decodes an S1 Application Protocol (S1-AP) initial context set-up request message configured to indicate an enhanced coverage restricted parameter, the message received from the MME. The eNB operates in the enhanced coverage mode for the UE unless the enhanced coverage restricted parameter indicates that the enhanced coverage is restricted.
Abstract:
Technology for a mobility management entity (MME) operable to facilitate paging message transmissions using a user equipment (UE) location is disclosed. The MME can process data received for a user equipment (UE) from a Service Capability Exposure Function (SCEF). The downlink data can include a public land mobile network (PLMN) UE location associated with the UE location. The MME can compare at least one of a time stamp and a granularity level of the PLMN UE location to existing location area information for the UE. The MME can determine to overwrite the existing location area information for the UE with the PLMN UE location. The UE can generate a paging message for transmission only to an eNodeB associated with the PLMN UE location, and the eNodeB can be configured to forward the paging message to the UE.