Abstract:
Methods, systems, and devices for wireless communications are described that provide for partitioning of time-frequency resources for types of traffic separately. A centralized scheduler in a centralized system or a set of access nodes (ANs) in a distributed system may allocate a portion of a set of resources for a first traffic type (e.g., control or data traffic). In some cases, multiple ANs may exchange reports or measurements to determine the resources to allocate to a given traffic type. The allocated resources may be repurposed for use by a different traffic type (e.g., data traffic resources may be repurposed an used for control traffic resources) in order to account for varying traffic conditions (e.g., unscheduled control traffic).
Abstract:
A method, a computer-readable medium, and an apparatus are provided. The apparatus may be a user equipment (UE). The apparatus may transmit, to a base station, information indicating a capability to communicate with one or more relay UEs. In addition, the apparatus may receive, from the base station, configuration information associated with a discovery procedure for identifying the one or more relay UEs. Further, the apparatus may perform the discovery procedure based on the configuration information.
Abstract:
Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive a message indicating that a base station supports allocating resources for sidelink communications using a first radio access technology (RAT) and a second RAT that is different from the first RAT. The UE may transmit a sidelink information message to the base station using the first RAT that indicates that sidelink communications are to be performed using either the second RAT or both the first RAT and the second RAT. The UE may receive a configuration message from the base station that comprises an identifier for the sidelink communications and an indication of available sidelink resources. The UE may transmit, based at least in part on the configuration message, a request for resources within the available sidelink resources, the request indicating the identifier and a buffer status report (BSR).
Abstract:
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may determine that a profile for vehicle-based sidelink communications supports packet duplication using a set of carrier frequencies. The UE may transmit a request to a base station for resources to use to perform the vehicle-based sidelink communications, the request comprising an indication of the profile, a reliability metric associated with the profile, and an identifier that identifies the set of carrier frequencies. The UE may receive one or more grants from the base station for semi-persistent scheduling resources allocated on the set of carrier frequencies in response to the request.
Abstract:
Methods, systems, and devices are describe for signaling protocols for proximity service functions in a wireless communication system. A first wireless device may identify a wireless relay requirement associated with the first wireless device. A proximity service protocol may be initiated between the first wireless device and a second wireless device based at least in part on the identified wireless relay requirement. The proximity service protocol may be initiated prior to an initiation of a communication data exchange between the first wireless device and the second wireless device. A relay link may be established, via the ProSe protocol, between the first wireless device and the second wireless device based at least in part on the identified wireless relay requirement.
Abstract:
Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication relay may receive configuration information identifying a first mapping between a first radio bearer and a first tunnel identifier; obtain a second mapping between a second radio bearer and at least one of the first radio bearer or the first tunnel identifier; and/or transmit data, received on the first radio bearer, on the second radio bearer, wherein the data is transmitted with the first tunnel identifier. Numerous other aspects are provided.
Abstract:
Methods, systems, and devices are described for utilization of an unlicensed radio frequency spectrum band for performing a ranging procedure. Performance of the ranging procedure may be triggered by a signal transmitted in a licensed radio frequency spectrum band. While conventional ranging in Long Term Evolution (LTE) communications, for example, using the licensed radio frequency spectrum band may be limited to a 10 MHz bandwidth, using the unlicensed radio frequency spectrum band for ranging may allow use of a wider bandwidth, such as 100 MHz or greater. Use of the wider bandwidth may result in more accurate ranging measurements (e.g., time-of-arrival estimation).
Abstract:
Methods, systems, and devices are described for wireless communication. A user equipment (UE) may receive configuration information for a multimedia broadcast service including a group communication identifier and a priority indicator. The UE may then convey the information in a monitoring request to a relay UE. In some cases the information may be conveyed using the Proximity-based Service (ProSe) signaling protocol. The relay UE may use the configuration information to relay broadcast to the receiving UE. If the relay UE receives multiple priority indicators associated with the same group communication identifier (e.g., from different receiving UEs) it may use the highest priority or the most recent priority.
Abstract:
Methods, systems, and devices are described for access class barring (ACB) operations for device-to-device (D2D proximity service communications. An ACB parameter may be defined and assigned to UEs that is associated with discovery or communication operations for normal and high priority user equipments (UEs). The UE may identify a resource for D2D proximity service communications and, when not barred, send a radio resource control (RRC) connection message requesting the available resource. An establishment cause may be defined and included in the RRC connection request message that corresponds to the ACB parameter.
Abstract:
Methods, systems, and devices are describe for signaling protocols for proximity service functions in a wireless communication system. A first wireless device may identify a group identity parameter associated with a multicast transmission of multimedia content. The first wireless device may map the identified group identity parameter to an identification parameter associated with at least one proximity service (ProSe) relay wireless device. The first wireless device may receive the multicast transmission of the multimedia content via the at least one ProSe relay wireless device based on the mapping of the identified group identity parameter to the identification parameter.