Abstract:
A communication terminal is described comprising a transceiver configured to support radio synchronization, discovery and communication with a cellular radio communication network via a first frequency band using a first bandwidth and a controller configured to control the transceiver to directly communicate with another communication terminal via a second frequency band using a second bandwidth, wherein the second frequency band is located in a spectrum which is license free.
Abstract:
Technology for a base station is disclosed. The base station can determine radio access network (RAN)-based UE paging parameters for configuration of a UE when the UE is in a suspended state. UE context information for the UE can be stored in a memory of the base station when the UE is in the suspended state. The base station can encode the RAN-based UE paging parameters for transmission to the UE directly or via a core network (CN) node. The base station can generate a RAN-originated paging message for the UE when downlink data is received at the base station for the UE. The base station can encode the RAN-originated paging message for transmission to the UE. The RAN-originated paging message can be transmitted from the base station and received at the UE in accordance with the RAN-based UE paging parameters.
Abstract:
A relay device assists in enabling lawful intercept (LI) by reporting, to a LI entity associated with the cellular network, authenticated identities of remote UEs (such as remote UEs connected via proximity services) and identification information that may allow the LI entity to monitor traffic (and/or control statistics related to the traffic) associated with the remote UEs. The authentication of the remote UEs may be performed using a technique that does not require involvement of the cellular network.
Abstract:
An apparatus for a user equipment (UE) facilitates, in response to a change in a data-off function of the UE, control in a core network over data charges attributable to wireless communications through an evolved universal mobile telecommunications service (UMTS) terrestrial radio access network (E-UTRAN) between the UE and the core network. The apparatus includes processor circuitry configured to (i) process a data-off state to determine whether the data-off state has changed between activated and deactivated states, and (ii) generate for a mobility management entity (MME) a message including the data-off state of the UE, thereby causing a policy and charging enforcement function (PCEF) of the core network to change a charging configuration between suppression and transmission of data from services that incur data charges calculated by data volume. The suppression corresponds to the activated state of the data-off function, and the transmission corresponds to the deactivated state of the data-off function.
Abstract:
A network device may enable non-3rd Generation Partnership Project (3GPP) access network to communicate with a Core network (CN) via an interface that is standardized for different types of access networks. The network device may operate as an intermediary for an attach procedure between a User Equipment (UE) of the non-3GPP access network and the CN. The access network may use a Layer-2 transport option (Extensible Authentication Protocol (EAP)) or a Layer-3 transport option (Internet Key Exchange version 2 (IKEv2) or Protocol for Carrying Authentication for Network Access (PANA) to communicate Non Access Stratum (NAS) messages between the UE and the CN. Additionally, a secure connection (e.g., a Datagram Transport Layer Security (DTLS) connection) between the UE and an access device of the non-3GPP network may be bootstrapped as a result of completing the attach procedure.
Abstract:
An architecture, for a cellular communications system, is described herein in which a "bearer-less" model is used for both the radio interface and the network core. Instead of using an individual Layer 2 bearer for each Quality of Service (QoS) class, in the architecture described herein, a common Layer 2 connection (e.g., a Layer 2 "fat pipe") may be used to handle traffic flows between a User Equipment (UE) device and an external Packet Data Network (PDN). Additionally, a bearer-less architecture may be used in the radio interface (i.e., between User Equipment (UE) and the eNB).
Abstract:
Technology for user equipment (UE) operable to establish a new packet data network (PDN) connection during handover is disclosed. The UE can receive a radio resource control (RRC) connection reconfiguration message from a source radio base station during a handover procedure. The RRC connection reconfiguration message can include a request for establishment of the new PDN connection between the UE and a target PDN gateway (PGW). The UE can establish the new PDN connection with the target PGW using one or more parameters included in the RRC connection reconfiguration message. The UE can send, to a target radio base station, an RRC connection reconfiguration complete message during the handover procedure that includes an acknowledgement of the establishment of the new PDN connection.
Abstract:
The techniques introduced here provide for network assisted device-to-device communication for peer-to-peer applications. The techniques include registering a user's peer-to-peer application identifier with a peer-to-peer application server, registering a peer-to-peer application with a device-to-device server, sending a peer-to-peer service request to the peer-to-peer application server, and receiving network assistance in discovering a peer with the desired P2P content/service and establishing a device-to-device communication arrangement for exchange of peer-to-peer services.
Abstract:
Techniques described herein may be used to enable User Equipment (UE) to switch between Radio Access Technologies (RATs) while transitioning from an inactive state to an active state. For example, a UE may connect to a base station via one type of RAT (e.g., Long-Term Evolution (LTE) RAT), enter an inactive state, and later, while transitioning from the inactive state to an active state, connect to another base station via another type of RAT (e.g., a New Radio (NR) or 5th Generation (5G) RAT). The UE may transition from one RAT to another RAT without increasing signaling between the UE and the network beyond minimal signaling involved in a transition of the UE from the inactive state to an active state. The network may further minimize signaling by determining and communicating minimized connection configuration information to the UE.
Abstract:
Device to device (D2D) communication can be performed with packet data convergence protocol (PDCP) based encapsulation without internet protocol (IP) addressing using a PC5 protocol (such as PC5 Signaling Protocol). The non-IP D2D PDCP-encapsulated communication can further include two forms of secure data transfer. A first non-IP D2D PDCP-encapsulated communication can be a negotiated non-IP D2D PDCP-encapsulated communication. A second non-IP D2D PDCP-encapsulated communication can be a non-negotiated non-IP D2D communication. The non-negotiated non-IP D2D PDCP-encapsulated communication can include a common key management server (KMS) version and a distributed KMS version.