Abstract: Methods, apparatuses, and computer-readable storage medium for encrypting discovery messages are provided. An example method at a first UE may include obtaining a discovery message that is ciphered based on at least one of a ciphering key, a ciphering algorithm, or a first set of time parameters, where the discovery message is scrambled based on at least one of a scrambling key, a scrambling algorithm, or a second set of time parameters. An example method may also include descrambling the discovery message based on at least one of the scrambling key, the scrambling algorithm, or the second set of time parameters. An example method may also include deciphering the discovery message based on at least one of the ciphering key, the ciphering algorithm, or the first set of time parameters.

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for optimizing delivery of a data to and/or from a UE in a connected but inactive state.

Abstract: Certain aspects of the present disclosure provide techniques for estimating performance of a radio link in a wireless communication systems using historical information. Disclosed methods generally includes determining receipt of historical information from a network, and estimating the performance of a radio link based on at least one selected from the group consisting of determining historical information was not received, and comparing received historical information to information available at the UE.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may register to a cellular network associated with a multicast/broadcast multimedia service (MBMS). The UE may transmit, to the cellular network, a request to join the MBMS. The UE may receive, from the cellular network and based at least in part on being registered with the cellular network, a response that indicates an MBMS service key (MSK) and MSK identifier pair. Numerous other aspects are described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first wireless communication device (WCD) may initiate, based at least in part on a determination to participate in user-equipment-to-user-equipment (U2U) relay communication, a discovery procedure to discover one or more of access to a second WCD or services provided by the second WCD, the second WCD being accessible via a third WCD. The WCD may communicate, for example U2U communications, with the second WCD via the third WCD based at least in part on the discovery procedure. Numerous other aspects are provided.

Abstract: This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for protocol stacks and bearer modeling for assisted Uu connectivity. A UE and a PN may each establish a first connection with an AN and, based on the first connections with the AN, establish a second connection with each other. Based on a bearer configuration, the UE may determine whether to route data to the PN via the first connection with the AN or directly to the PN via the second connection with the PN. Accordingly, the UE may transmit the data to at least one of the AN or the PN based on the determination of whether to route the data to the PN via the first connection with the AN or directly to the PN via the second connection with the PN.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may encrypt a discovery message associated with a relay service based at least in part on a set of code-sending security parameters (CSSPs) associated with the relay service. The UE may transmit the encrypted discovery message. In some aspects, a UE may receive an encrypted discovery message. The UE may decrypt the encrypted discovery message based at least in part on a set of code-receiving security parameters (CRSPs) associated with the relay service. Numerous other aspects are provided.

Abstract: Enabling Ethernet Header Compression (EHC) for use with data sent within a Non-Access Stratum (NAS) control plane of a wireless communication network. In one aspect, a wireless communication device sends a signal to a wireless communication network indicating the device supports EHC for data transfer over a control plane. The device obtains a response from the wireless communication network indicating the wireless communication network supports EHC for data transfer over the control plane. The device then sends an Ethernet packet compressed using EHC to the wireless communication network over the control plane. The wireless communication device may be configured to send a request to the wireless communication network to use EHC before sending the Ethernet packet compressed using EHC. The device then sends the compressed Ethernet packet only if the request is granted. In another aspects, complementary EHC features are provided within a network component of the wireless communication network.

Abstract: Methods, systems, and devices for wireless communications are described. A first parent node of a wireless backhaul network may receive, from a donor node of the wireless backhaul network, a token for a child node of the wireless backhaul network, the token being unique to a first wireless link between the first parent node and the child node. The first parent node may determine that a triggering event has occurred for a second wireless link between the first parent node and a second parent node. The first parent node may transmit, in response to determining that the triggering event has occurred, the token to the child node over the first wireless link to indicate for the child node to select a third parent node of the wireless backhaul network.

Abstract: This disclosure provides methods, devices and systems related multi-link wireless communication. A method may include establishing, between the first WLAN device and a second WLAN device, a multi-link association that enables a first wireless communication link and a second wireless communication link. The method may include determining a temporal key for the multi-link association. The method may include encrypting a first and second media access control (MAC) protocol data unit (MPDU) based on the temporal key. The method may include preparing a first frame including the encrypted first MPDU and a second frame including the encrypted second MPDU. The method may include assigning packet numbers from a set of sequential packet numbers to the first and second frames. The method may include transmitting the first frame over the first wireless communication link and the second frame over the second wireless communication link.

Abstract: A first wireless device establishes a first connection to a second wireless device and establishes a second connection with a network entity via the second wireless device. The first wireless device transmits a message to the network entity via the second wireless device, the message indicating that the second connection is a remote connection. The second wireless device establishes the first connection with the first wireless device to relay traffic between a network entity and the first wireless device and establishes a connection with the network entity to relay the traffic between the network entity and the first wireless device. The second wireless device receives a configuration from the network entity for the second connection between the network entity and the first wireless device for relaying the traffic to the second wireless device.

Abstract: This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for assisted connectivity techniques. For example, a UE may transmit, to an AN, a request to establish a RRC connection with a PN, and the AN may further transmit, to the PN, the request received from the UE to establish the RRC connection with the PN. After receiving the request, the PN may transmit, to the AN, one or more RRC connection parameters for the RRC connection with the UE, and the AN may further transmit, to the UE, the one or more connection parameters received from the PN for establishing the RRC connection with the PN. Based on the one or more parameters received from the AN, the UE may establish the RRC connection with the PN.

Abstract: In an aspect, a slave UE and a master UE each establish an attachment to a core network of a cellular communications system. The slave UE obtains security credentials configured to encrypt and decrypt traffic between the slave UE and the core network. A D2D connection is established between the slave UE and the master UE (e.g., tethering). One or more communication functions are offloaded from the slave UE to the master UE, including at least one communication function with the core network for maintaining the attachment of the slave UE to the core network. Application-layer data is relayed to/from the slave UE over the D2D connection. In an aspect, either the slave UE or the master UE may perform encryption and decryption of control plane signaling using the slave UE's security credentials.

Abstract: Aspects of the present disclosure provide for a security model for enabling multiple connectivity and service contexts while sharing a single connectivity context to establish a network connection. A context (e.g., connectivity context, service context, security context) is a set of information describing the connectivity, service, or security established between two or more entities. The connectivity context and service context may be established at different network nodes or entities. In one aspect of the disclosure, a connectivity context includes an Evolved Packet System (EPS) Mobility Management (EMM) context or both an EMM context and an EPS Session Management (ESM) context.

Abstract: A first network node may transmit, to a second network node, first information associated with granular user consent control. The first information may be further associated with a data processing task and a UE. The second network node may receive, from the first network node or the UE, second information associated with the granular user consent control. The second information may be further associated with the data processing task and the UE. The second network node may identify a user consent result associated with the data processing task and a user of the UE based on the granular user consent control. The user consent result may be further based on the first information or the second information. The second network node may transmit, to the first network node, the user consent result. Thereafter, the first network node may handle the data processing task based on the user consent result.

Abstract: In an aspect, the present disclosure includes a method, apparatus, and computer readable medium for wireless communications for configuring of a NAS COUNT value of a mapped EPS security context associated with an intersystem change of a UE from a 5G system to an EPS. The aspect includes generating, by a UE, a mapped EPS security context associated with an intersystem change of the UE from a 5G system to an EPS, wherein the mapped EPS security context comprises security parameters created based a 5G security context used for the 5G system, the security parameters enabling security-related communications between the UE and a network entity; determining an UL NAS COUNT value and the DL NAS COUNT value for the mapped EPS security context; and transmitting, by the UE, a NAS message to the network entity, the NAS message including the UL NAS COUNT value of the mapped EPS security context.

Abstract: In an aspect, a network supporting a number of client devices includes a network device that generates a context for a client device. The client device context may include network state information for the client device that enables the network to communicate with the client device. The client device may obtain, from a network device that serves a first service area of the network, information that includes a first client device context. The client device may enter a second service area of the network served by a second network device. Instead of performing a service area update procedure with the network, the client device may transmit a packet in the different service area with the information that includes the client device context. The client device may receive a service relocation message including information associated with the different network device in response to the transmission.

Abstract: A user device having a security context with a first network based on a first key may establish a security context with a second network. In a method, the user device may generate a key identifier based on the first key and a network identifier of the second network. The user device may forward the key identifier to the second network for forwarding to the first network by the second network to enable the first network to identify the first key at the first network. The user device may receive a key count from the second network. The key count may be associated with a second key forwarded to the second network from the first network. The user device may generate the second key based on the first key and the received key count thereby establishing a security context between the second network and the user device.

Abstract: Aspects of the disclosure relate to discovery in a wireless communication network. According to one aspect, a user equipment (UE) may determine to use a service associated with a sidelink communication, determine a contents of a discovery message including an indication of the message being the discovery message for the service, and determine a sidelink resource for use to transmit the discovery message. The UE may then transmit over a user plane using the determined sidelink resource the discovery message including the indication of the message being the discovery message for the service. Other aspects, embodiments, and features are also claimed and described.

Abstract: Methods, systems, and devices for wireless communications are described. A first node of a wireless communications network may determine a service type of the first node. The first node may transmit, to a second node during a random access procedure, an indication of the service type of the first node. The first node may then establish a connection with a unit of the second node that is for serving nodes of the wireless network associated with the service type. The connection may be established based on transmitting the indication of the service type.