A user equipment (UE) in a vehicle (V-UE) broadcasts multi-phased ranging signals with which other entities may determine the range to the V-UE. The multi-phased ranging signals may include a first message, which may be broadcast in the Intelligent Transport System (ITS) spectrum, includes ranging information, such as a source identifier, location information for the broadcasting V-UE, and an expected time of broadcast of the ranging signal. The ranging signal may then be broadcast at the expected time and may include the source identifier. A second message, which be broadcast in the ITS spectrum, may include clock error information for the V-UE. A receiving entity may determine the range to the V-UE based on the time of arrival of the ranging signal and the expected time of transmission, as well as the clock error information. The receiving entity may further generate a position estimate based on the received location information.

A method of monitoring emergency vehicles includes generating host vehicle information with a navigation unit, the host vehicle information including a host vehicle location and a host vehicle heading, receiving emergency vehicle information with a receiver, the emergency vehicle information including an emergency vehicle emergency status, an emergency vehicle location and an emergency vehicle heading, determining with a controller a distance between the host vehicle location and the emergency vehicle location, determining with the controller whether the distance between host vehicle and the emergency vehicle is decreasing, and performing a mitigation operation, when the distance between host vehicle and the emergency vehicle is decreasing, and the distance between host vehicle and the emergency vehicle is a threshold distance or less.

A location awareness apparatus includes: a communication unit performing communications with a plurality of satellites and with another device; and a controller recognizing a current location of the device based on information received from the plurality of satellites, controlling communications with the other device when a number of satellites available for communication is less than a reference number during the recognition of the current location, receiving satellite information from the other device, and correcting the current location based on the information received from the plurality of satellites and the satellite information received from the other device.

A method of performing functions by proxy for a set of associated proximate devices is disclosed. In some embodiments, the method may comprise associating a set of user equipments (UEs), wherein upon determination that a first UE in the set is unavailable for performing a requested function, at least one alternate second UE in the associated set of UEs is selected, wherein the at least one second UE is proximate to the first UE and the at least one second UE is available for performing the requested function. The performance of the requested function on the at least one second UE is initiated.

A user equipment (UE), a device to device (D2D) UE, a backhaul device and a positioning method thereof are provided. The D2D UE measures an uplink reference signal transmitted from the UE and generates an uplink measurement report message according to the measured uplink reference signal. The backhaul device receives the uplink measurement report message and determines location information on at least one of the UE and D2D UE based on the uplink measurement report message.

On a basis of a relative position of an obstacle 401, a size of the obstacle in an own vehicle 12 width direction and a width of the own vehicle 12, a maximum amount D.sub.t of movement of the own vehicle 12 in the vehicle width direction as required to avoid the obstacle 401 is calculated. A point displaced over the maximum amount of movement toward a side of the adjacent lane from the relative position of the obstacle 401 is determined as an avoiding point 250. If a distance d between the avoiding point 250 and the adjacent lane is greater than the width Wm of the own vehicle 12, an avoiding path is generated for allowing the own vehicle 12 to pass the avoiding point 250.

Methods, systems and devices for determining a more precise location of a citizen band service device (CBSD) and providing an enhanced location based service (eLBS). A citizen band service device may be configured to determine its approximate location, form a communication group with a wireless transceiver in proximity to the citizen band service device, send the determined approximate location of the citizen band service device to the wireless transceiver, receive location information from the wireless transceiver, and determine a more precise location of the citizen band service device based on the location information received from the wireless transceiver. The citizen band service device may use the computed location information to provide a location based service and/or send the more precise location to the wireless transceiver or another wireless device for use in providing a location based service.

A conventional V2X communication system relays vehicle information received from vehicles, from a base station to all vehicles in an area. Accordingly, a problem arises in that unnecessary transmission to vehicles which do not require vehicle information occurs, resulting in increase in a traffic amount in communication. According to the present disclosure, only if it is determined, based on information that is held by a vehicle or a base station and that is about an area in which direct transmission or reception is difficult, that direct transmission of vehicle information to another vehicle or reception of vehicle information transmitted from the other vehicle is difficult, the vehicle information is transmitted to the other vehicle via the base station.

Systems and methods for measuring at and reporting by a target user equipment (UE) of one or more positioning signals sent from one or more assisting UEs to the target UE are disclosed herein. The target UE may receive a positioning signal from an assisting UE according to a communication received at the target UE. The target UE may proceed to perform a positioning measurement using the positioning signal received from the target UE. The positioning measurement may be used by the target UE to estimate its own position, or the positioning measurement may be sent to another entity within a wireless communications system to be used in estimating the physical position of the UE. The handling of multiple received positioning signals from various sources, and the handling of situations where, for example, a transmission reception point (TRP) and an assisting UE may schedule overlapping positioning signals, ate also discussed.

A vehicle-enabled user equipment (VUE) and related techniques are disclosed. In one aspect, the VUE issues a periodic broadcast, or signals a response to a requesting source, identifying its location management capability (LMC). The UE forms a link with a recipient VUE of the broadcast to perform joint localization of the pedestrian UE (PUE). Joint localization by VUE and another VUE may be performed by VUEs and PUEs in the region exchanging ranging signals and ego measurements. The VUE determines a location jointly of the PUE. The location can be determined upon a request, periodically, or in response to a triggered event.