WO2018080568A1 - Mode de transmission assisté par réseau pour communication de véhicule à véhicule (v2v) - Google Patents

Mode de transmission assisté par réseau pour communication de véhicule à véhicule (v2v) Download PDF

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Publication number
WO2018080568A1
WO2018080568A1 PCT/US2016/068755 US2016068755W WO2018080568A1 WO 2018080568 A1 WO2018080568 A1 WO 2018080568A1 US 2016068755 W US2016068755 W US 2016068755W WO 2018080568 A1 WO2018080568 A1 WO 2018080568A1
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WIPO (PCT)
Prior art keywords
vues
transmission mode
base station
communication
network state
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Application number
PCT/US2016/068755
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English (en)
Inventor
Hassan GHOZLAN
Qian Li
Lu LU
Guangjie Li
Dawei YING
Yaser FOUAD
Satish JHA
JoonBeom Kim
Song Noh
Vesh Raj SHARMA BANJADE
Xiaoyun Wu
Geng Wu
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Intel Corporation
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Publication of WO2018080568A1 publication Critical patent/WO2018080568A1/fr

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    • H04W4/046—

Definitions

  • Wireless mobile communication technology uses various standards and protocols to transmit data between a node (e.g., a transmission station) and a wireless device (e.g., a mobile device).
  • Some wireless devices communicate using orthogonal frequency-division multiple access (OFDMA) in a downlink (DL) transmission and single carrier frequency division multiple access (SC-FDMA) in uplink (UL).
  • OFDMA orthogonal frequency-division multiple access
  • SC-FDMA single carrier frequency division multiple access
  • OFDM orthogonal frequency-division multiplexing
  • 3 GPP third generation partnership project
  • LTE long term evolution
  • IEEE Institute of Electrical and Electronics Engineers 802.16 standard
  • WiMAX Worldwide Interoperability for Microwave Access
  • WiFi Wireless Fidelity
  • the node can be a combination of Evolved Universal Terrestrial Radio Access Network (E-UTRAN) Node Bs (also commonly denoted as evolved Node Bs, enhanced Node Bs, eNodeBs, or eNBs) and Radio Network Controllers (RNCs), which communicates with the wireless device, known as a user equipment (UE).
  • E-UTRAN Evolved Universal Terrestrial Radio Access Network
  • Node Bs also commonly denoted as evolved Node Bs, enhanced Node Bs, eNodeBs, or eNBs
  • RNCs Radio Network Controllers
  • the downlink (DL) transmission can be a communication from the node (e.g., eNodeB) to the wireless device (e.g., UE), and the uplink (UL) transmission can be a communication from the wireless device to the node.
  • UE user equipment
  • FIG. 1 illustrates an overall modulation and coding scheme (MCS) efficiency in relation to a packet reception ratio with respect to two types of transmission modes in accordance with an example
  • FIG. 2 illustrates an overall modulation and coding scheme (MCS) efficiency in relation to a probability of collision with respect to two types of transmission modes in accordance with an example
  • FIG. 3 A illustrates signaling between a base station and a plurality of user equipments (UEs) configured for V2V communication (vUEs) in accordance with an example;
  • UEs user equipments
  • vUEs V2V communication
  • FIG. 3B illustrates signaling between a base station and a plurality of user equipments (UEs) configured for V2V communication (vUEs) in accordance with an example
  • FIG. 4 depicts functionality of a base station operable to assist in vehicle-to- vehicle (V2V) communication in accordance with an example
  • FIG. 5 depicts functionality of a user equipment configured for vehicle-to-vehicle (V2V) communication (vUE) in accordance with an example;
  • V2V vehicle-to-vehicle
  • FIG 6 depicts a flowchart of a machine readable storage medium having instructions embodied thereon for assisting vehicle-to-vehicle (V2V) communications at a base station in accordance with an example;
  • V2V vehicle-to-vehicle
  • FIG. 7 illustrates a diagram of a wireless device (e.g., UE or vUE) and a base station (e.g., eNodeB) in accordance with an example; and
  • a wireless device e.g., UE or vUE
  • a base station e.g., eNodeB
  • FIG 8 illustrates a diagram of a wireless device (e.g., UE) in accordance with an example.
  • V2V Vehicle-to-vehicle
  • a vehicle technology that enables vehicles to communicate information with each other (e.g., collision warning, emergency stop warning, queue warning, and cooperative adaptive cruise control).
  • V2V systems can use a region of the 5.9 GHz band, which is an unlicensed frequency band also known as WiFi.
  • the United States V2V standard is referred to as Wireless Access for Vehicular
  • V2V is standardized as European Telecommunications Standards Institute (ETSI) ITS-G5, which is a standard that is also based on the IEEE 802. l ip standard.
  • ETSI European Telecommunications Standards Institute
  • V2X Vehicle-to-everything
  • V2X is a vehicular communication system that incorporates other more specific types of communication, such as V2I (Vehicle-to-Infrastructure), V2V (Vehicle-to-vehicle), V2P (Vehicle-to-Pedestrian), V2D (Vehicle-to-device) and V2G (Vehicle-to-grid).
  • V2I Vehicle-to-Infrastructure
  • V2V Vehicle-to-vehicle
  • V2P Vehicle-to-Pedestrian
  • V2D Vehicle-to-device
  • V2G Vehicle-to-grid
  • V2X communication is based on wireless local area network (WLAN) technology and works directly between vehicles or the infrastructure, which form a vehicular ad-hoc network, as two V2X senders come within each other's' range. Hence, V2X does not necessitate any infrastructure for vehicles to communicate, which is key to assure safety in remote or little developed areas.
  • WLAN wireless local area network
  • V2X is standardized as part of the WLAN IEEE 802.11 family of standards and known in the United States as WAVE and in Europe as ITS-G5.
  • V2X can be applicable to a number of road safety applications, such as forward collision warning, lane change warning/blind spot warning, emergency electric brake light warning, intersection movement assist, emergency vehicle approaching, road works warning, platooning, etc.
  • V2V broadcasts of critical information can include collision warning, emergency stop warning, queue warning, cooperative adaptive cruise control, etc.
  • V2V broadcasts can be performed on a side link of 5G New Radio (NR) Things, which can reduce latency when broadcasting critical information.
  • NR New Radio
  • V2V broadcasts can be performed using redundancy mechanisms to protect transmitted data, which can provide high reliability when broadcasting critical information. In other words, providing redundant copies of data can improve the reliability when broadcasting critical information.
  • V2V broadcasts of critical information can be in accordance with a certain transmission mode.
  • the transmission mode can define a modulation and coding scheme (MCS) and a number of repetitions (which can include no repetitions).
  • MCS modulation and coding scheme
  • a modulation type and a coding rate can be defined.
  • the modulation type can include binary phase-shift keying (BPSK), quadrature phase-shift keying (QPSK), 16-quadrature amplitude modulation (16-QAM), 64-QAM or 256 QAM.
  • the transmission mode can involve repetitions of data or no repetitions of data. Repetitions of the data can provide a receiving vUE an increased number of opportunities to successfully receive the data.
  • FIG. 1 illustrates an example of an overall modulation and coding scheme (MCS) efficiency in relation to a packet reception ratio with respect to two types of transmission modes.
  • the packet reception ratio (PRR) can be calculated by X/Y, where Y is a number of UE/vehicles that located in a range from a packet transmission, and X is a number of UE/vehicles with successful packet reception among Y.
  • a first transmission mode can employ a reduced MCS and no repetitions
  • a second transmission mode can employ an increased MCS with repetitions.
  • repetitions can be considered as acknowledgement (ACK) negative ACK (NACK)-less retransmissions of data.
  • the first transmission mode and the second transmission mode can utilize a same number of resources.
  • the overall MCS efficiency can be equal to 1.5 (i.e., 2 x 3/4 x 1).
  • the overall MCS efficiency can be equal to 1.5 (i.e., 6 x 1/2 x 2).
  • the first transmission mode can employ a reduced MCS with no repetitions (i.e., the number of repetitions is equal to 1 because each data segment is transmitted once).
  • the second transmission mode can employ an increased MCS with repetitions (e.g., the number of repetitions is equal to 4, which indicates that 4 copies of each data segment are transmitted to improve reliability).
  • the PRR when the overall MCS efficiency is approximately 0.5, the PRR can be approximately 0.6, and when the overall MCS efficiency is approximately 4.5, the PRR can be approximately 0.6.
  • the PRR can range from approximately 0.6 to 0.7 depending on the overall MCS efficiency.
  • the PRR can be approximately 0.8, and when the overall MCS efficiency is approximately 1.0, the PRR can be approximately 0.5. Therefore, with respect to the first transmission mode, the PRR can drop significantly as the overall MCS efficiency increases.
  • a message size can be equal to 300 bytes
  • a range can be equal to 160 meters
  • a latency can be equal to 10 milliseconds (ms).
  • FIG. 2 illustrates an example of an overall modulation and coding scheme (MCS) efficiency in relation to a probability of collision with respect to two types of transmission modes.
  • the probability of collision can indicate a likelihood or probability that a V2V broadcast message from a vUE will collide with another V2V broadcast message from another vUE.
  • a first transmission mode can employ a reduced MCS and no repetitions (e.g., the number of repetitions is equal to 1), and a second transmission mode can employ an increased MCS with repetitions (e.g., the number of repetitions is equal to 4).
  • repetitions can be considered as acknowledgement (ACK) negative ACK (NACK)-less retransmissions of data.
  • the probability of collision can be approximately 0.4, and when the overall MCS efficiency is approximately 4.5, the probability of collision can be approximately 0.1.
  • the probability of collision can decrease as the overall MCS efficiency increases.
  • the probability of collision can be approximately 0.9, and when the overall MCS efficiency is approximately 1, the probability of collision can be
  • a message size can be equal to 300 bytes
  • a range can be equal to 160 meters
  • a latency can be equal to 10 milliseconds (ms).
  • a low overall MCS efficiency (e.g., zero) can correspond to a high collision or high interference scenario.
  • the high collision or high interference scenario can indicate that there is a relatively high probability of a V2V message collision due to a relatively large number of vUEs broadcasting V2V messages at the same time (e.g., the probability of a V2V message collision is above a defined threshold).
  • a high overall MCS efficiency (e.g., 4.5) can correspond to a low collision or low interference scenario.
  • the low collision or low interference scenario can indicate that there is a relatively low probability of a V2V message collision due to a relatively small number of vUEs broadcasting V2V messages at the same time (e.g., the probability of a V2V message collision is below a defined threshold).
  • the second transmission mode i.e., increased MCS with repetitions
  • the first transmission mode i.e., reduced MCS with no repetitions
  • the second transmission mode i.e., increased MCS with repetitions
  • one of the first transmission mode or the second transmission mode can be better than the other.
  • the usage of either the first transmission mode or the second transmission mode can be more beneficial depending on a current network state or regime of operation (i.e., high collision or low collision).
  • a base station can determine the current network state (or regime of operation) using observations collected by the base station.
  • the base station can announce the current network state to the vUEs.
  • the vUEs can select an appropriate transmission mode to be used by the vUEs. For example, the vUEs can select a transmission mode with a reduced MCS with no repetitions when the current network state is that of low- collision/low-interference.
  • the vUEs can select a transmission mode with an increased MCS with repetitions when the current network state is that of high- collision/high-interference.
  • the vUEs can broadcast V2V messages to each other in accordance with the selected transmission mode.
  • the base station can determine the current network state (or regime of operation) using observations collected by the base station, and then the base station can select the appropriate transmission mode (e.g., reduced MCS with no repetitions or increased MCS with repetitions) to be used by the vUEs depending on the current network state.
  • the base station can transmit the selected transmission mode to the vUEs, and the vUEs can broadcast V2V messages to each other in accordance with the selected transmission mode.
  • the base station can select the transmission mode as opposed to the vUEs.
  • a base station determined a fixed transmission mode (e.g., fixed MCS with or without repetitions), and instructed the vUEs to perform V2V broadcasts using the fixed transmission mode.
  • the base station did not determine an optimal transmission mode for the vUEs to use based on the current state of the network (e.g., whether the network is experiencing a high- collision/high-interference scenario or a low-collision/low-interference scenarios).
  • the base station did not adapt the transmission mode depending on the current state of the network. Therefore, in previous solutions, the base station may have instructed the vUEs to use a transmission mode that was not ideal for the current state of the network.
  • the vUEs did not have the ability to select the transmission mode themselves based on the current network state (e.g., low-collision/low- interference or high-collision/high-interference). Rather, in previous solutions, the vUEs simply received the fixed transmission mode from the base station, and then used the fixed transmission mode when broadcasting V2V messages.
  • the current network state e.g., low-collision/low- interference or high-collision/high-interference
  • FIG. 3 A illustrates exemplary signaling between a base station 310 and a plurality of user equipments (UEs) configured for V2V communication (vUEs) 320.
  • the base station 310 can include a network device/infrastructure.
  • the base station 310 can include a road side unit (RSU), which can have reduced capabilities as compared to a full base station.
  • RSU road side unit
  • the signaling between the base station 310 and the vUEs 320 can enable the vUEs 320 to utilize a selected transmission mode when broadcasting V2V messages.
  • the base station 310 can receive a plurality of reports from the plurality of vUEs 320.
  • each of the vUEs 320 can periodically send a report to the base station 310, and the reports can include state information for the vUEs.
  • the reports can include side link channel state information (CSI), side link interference level information and/or side link decoding failure information for the plurality of vUEs 320.
  • the vUEs 320 can maintain statistics for side link CSI, side link interference levels and/or side link decoding failures with respect to V2V broadcasts.
  • the vUEs 320 can track their respective channel states over a period of time.
  • the vUEs 320 can keep track of interference that is experienced by the vUEs 320. When vUEs 320 fail to decode a message or a portion of a message, this can be tracked as a decoding failure at the vUE side.
  • the vUEs 320 can include such information in the reports that are transmitted to the base station 310.
  • the base station 310 can monitor a plurality of V2V messages that are broadcasted from the plurality of vUEs 320.
  • the vUEs 320 do not specifically send the messages to the base station 310. Rather, these V2V messages are broadcasted for other vUEs 320 in the vicinity, and the base station 310 can monitor or listen to a channel in order to detect these V2V messages.
  • the base station 310 can extract state information for the vUEs 320 that is included in the broadcasted V2V messages. Similar to the reports received from the vUEs 320, the broadcasted V2V messages can include side link CSI, side link interference level information and/or side link decoding failure information for the vUEs 320.
  • the base station 310 can aggregate the state information included in the plurality of reports and the state information included in the plurality of V2V messages. As a result, the base station 310 can generate aggregated network state information. In other words, the base station 310 can gather and aggregate the state information for the vUEs 320 from each of the different sources (e.g., vUE reports and/or broadcasted V2V messages). The base station 310 can use various weighting techniques when aggregating the state information for the vUEs 320 from the plurality of reports and V2V messages.
  • the base station 310 can determine a network state for V2V communication using the aggregated network state information.
  • the network state for V2V communication can indicate a probability level of V2V message collisions between the plurality of vUEs 320.
  • a V2V message collision can occur when a vUE 320 fails to decode a received V2V message.
  • the network state can be determined based on the side link CSI, side link interference level information and/or side link decoding failure information for the plurality of vUEs 320, as indicated in the aggregated network state information.
  • favorable side link CSI, interference levels and/or decoding failure rates can imply a relatively low number of V2V message broadcasts, which can result in a reduced probability level of V2V message collisions.
  • unfavorable side link CSI, interference levels and/or decoding failure rates can imply a relatively high number of V2V message broadcasts, which can result in an increased probability level of V2V message collisions.
  • the side link CSI, the side link interference levels and the rate of side link decoding failures can be indicate of the number of vUEs 320 that are broadcasting V2V messages, and as the number of broadcasted V2V messages increases, the probability of V2V message collisions also increase.
  • the base station 310 can determine that the network state (or regime of operation) is that of low-collision/low- interference or high-collision/high-interference.
  • the base station 310 can select a transmission mode to be used by the plurality of vUEs 320 when broadcasting V2V messages, and the transmission mode can be selected based on the network state for V2V communication.
  • the transmission mode can include a modulation and coding scheme (MCS) and a repetition number to be used by a plurality of vUEs 320 when broadcasting V2V messages.
  • MCS modulation and coding scheme
  • the base station 310 can select the transmission mode to include a reduced modulation and coding scheme (MCS) and no repetitions when the network state for V2V communication indicates a decreased probability level of V2V message collisions between the plurality of vUEs 320.
  • the base station 310 can select the transmission mode to include an increased modulation and coding scheme (MCS) and repetitions when the network state for V2V communication indicates an increased probability level of V2V message collisions between the plurality of vUEs 320.
  • MCS modulation and coding scheme
  • repetition of data packets i.e., sending multiple copies of the same data packet
  • the base station 310 can transmit the selected transmission mode to the plurality of vUEs 320.
  • the base station 310 can transmit the selected transmission mode to the plurality of vUEs 320 via a downlink control indicator or downlink control information (DCI).
  • the base station 310 can transmit the selected transmission mode to the plurality of vUEs 320 via radio resource control (RRC) signaling.
  • the vUEs 320 can receive the selected transmission mode from the base station 310, and the selected transmission mode can include the MCS and the repetition number to be used by the plurality of vUEs 320 when broadcasting V2V messages.
  • the vUEs 320 can broadcast V2V message in accordance with the selected transmission mode transmitted from the base station 310.
  • the base station 310 can continuously receive the reports from the vUEs 320 and monitor the V2V messages that are broadcasted from the vUEs 320, and then generate the aggregated network state information.
  • the base station 310 can detect changes in the network state (e.g., when the network transitions from a high- collision/high-interference scenario to a low-collision/low-interference scenario).
  • the base station 310 can select an updated transmission mode to reflect the change in the network state, and the base station 310 can transmit the updated transmission mode to the vUEs 320.
  • the base station 310 can modify the transmission mode to be implemented at the vUEs 320 in real-time based on current traffic conditions and patterns.
  • FIG. 3B illustrates exemplary signaling between a base station 310 and a plurality of user equipments (UEs) configured for V2V communication (vUEs) 320.
  • the base station 310 can include a network device/infrastructure.
  • the base station 310 can include a road side unit (RSU).
  • the signaling between the base station 310 and the vUEs 320 can enable the vUEs 320 to utilize a selected transmission mode when broadcasting V2V messages.
  • the base station 310 can receive a plurality of reports from the plurality of vUEs 320, and the reports can include state information for the vUEs 320. More specifically, the reports can include side link channel state information (CSI), side link interference level information and/or side link decoding failure information for the plurality of vUEs 320.
  • the base station 130 can monitor a plurality of V2V messages that are broadcasted from the plurality of vUEs 320. The base station 310 can extract state information for the vUEs 320 that is included in the broadcasted V2V messages.
  • the broadcasted V2V messages can include side link CSI, side link
  • the base station 310 can aggregate the state information included in the plurality of reports and the state information included in the plurality of V2V messages. As a result, the base station 310 can generate aggregated network state information.
  • the base station 310 can determine a network state for V2V communication using the aggregated network state information.
  • the network state for V2V communication can indicate a probability level of V2V message collisions between the plurality of vUEs 320. More specifically, based on the aggregated network state information, the base station 310 can determine that the network state (or regime of operation) is that of low-collision/low-interference or high-collision/high-interference.
  • the base station 310 can send an indication of the network state for V2V communication to the plurality of vUEs 320. Therefore, based on the indication received from the base station 310, the vUEs 320 can determine that the network state (or regime of operation) is that of low-collision/low-interference or high-collision/high- interference.
  • the vUEs 320 can individually select a transmission mode when broadcasting V2V messages, and the transmission mode can be selected based on the indication of the network state (e.g., low-collision/low-interference or high- collision/high-interference) received from the base station 130.
  • the vUEs 320 can select the transmission mode to include a reduced modulation and coding scheme (MCS) and no repetitions when the network state for V2V communication indicates a decreased probability level of V2V message collisions between the plurality of vUEs 320.
  • MCS modulation and coding scheme
  • the vUEs 320 can select the transmission mode to include an increased modulation and coding scheme (MCS) and repetitions when the network state for V2V communication indicates an increased probability level of V2V message collisions between the plurality of vUEs 320.
  • MCS modulation and coding scheme
  • each individual vUE 320 can broadcast V2V messages in accordance with the selected transmission mode.
  • a network/infrastructure e.g., a base station (BS) or a or BS- type Road Side Unit (RSU)
  • BS base station
  • RSU Road Side Unit
  • the network/infrastructure can aggregate information received from different sources (e.g., monitored broadcast messages and UE reports), and the network/infrastructure can determine a network state (or collision level). Based on the network state (or collision level), the network/infrastructure can select a transmission mode to be used by the UEs.
  • the transmission mode can be selected to optimize an overall transmission success rate and latency.
  • the transmission mode can involve a reduced Modulation and Coding Scheme (MCS) and no repetitions, or alternatively, the transmission mode can involve an increased MCS with repetitions.
  • MCS Modulation and Coding Scheme
  • the network/infrastructure can announce the selected transmission mode to the UEs.
  • the network/infrastructure can announce the selected transmission mode to the UEs via downlink control information (DCI) or via radio resource control (RRC) configuration.
  • DCI downlink control information
  • RRC radio resource control
  • the UEs can receive the selected transmission mode, and then utilize the selected transmission mode for subsequent V2V broadcasts.
  • the base station can comprise one or more processors configured to: decode, at the base station, a plurality of reports received from a plurality of user equipments (UEs) that are configured for V2V communication (vUEs), the reports including state information for the vUEs, as in block 410.
  • the base station can comprise one or more processors configured to: aggregate, at the base station, the state information for the vUEs included in the plurality of reports to generate aggregated network state information, as in block 420.
  • the base station can comprise one or more processors configured to: determine, at the base station, a network state for V2V communication using the aggregated network state information, wherein the network state for V2V communication indicates a probability level of V2V message collisions between the plurality of vUEs, as in block 430.
  • the base station can comprise one or more processors configured to: select, at the base station, a transmission mode to be used by the plurality of vUEs when broadcasting V2V messages, wherein the transmission mode is selected based on the network state for V2V communication, as in block 440.
  • the base station can comprise one or more processors configured to: signal, at the base station, the selected transmission mode for transmission to the plurality of vUEs, as in block 450.
  • the vUE can comprise one or more processors configured to: decode, at the vUE, a selected transmission mode received from a base station, wherein the selected transmission mode includes a modulation and coding scheme (MCS) and a repetition number to be used by a plurality of vUEs when broadcasting V2V messages, and the selected transmission mode is determined based on a network state for V2V communication that indicates a probability level of V2V message collisions between the plurality of vUEs, as in block 510.
  • the vUE can comprise one or more processors configured to: signal, at the vUE, a V2V message for broadcast to the plurality of vUEs in accordance with the selected transmission mode, as in block 520.
  • Another example provides at least one machine readable storage medium having instructions 600 embodied thereon for assisting vehicle-to-vehicle (V2V)
  • the instructions can be executed on a machine, where the instructions are included on at least one computer readable medium or one non-transitory machine readable storage medium.
  • the instructions when executed perform: decoding, at the base station, a plurality of reports received from a plurality of user equipments (UEs) that are configured for V2V communication (vUEs), the reports including state information for the vUEs, as in block 610.
  • the instructions when executed perform: aggregating, at the base station, the state information for the vUEs included in the plurality of reports to generate aggregated network state information, as in block 620.
  • UEs user equipments
  • vUEs V2V communication
  • the instructions when executed perform: determining, at the base station, a network state for V2V communication using the aggregated network state information, wherein the network state for V2V communication indicates a probability level of V2V message collisions between the plurality of vUEs, as in block 630.
  • the instructions when executed perform: selecting, at the base station, a transmission mode to be used by the plurality of vUEs when broadcasting V2V messages, wherein the transmission mode is selected based on the network state for V2V communication, as in block 640.
  • the instructions when executed perform: signaling, at the base station, the selected transmission mode for transmission to the plurality of vUEs, as in block 650.
  • FIG 7 provides an example illustration of a user equipment (UE) device 700 and a node 720.
  • the UE device 700 can include a wireless device, a mobile station (MS), a mobile wireless device, a mobile communication device, a tablet, a handset, or other type of wireless device.
  • the UE device 700 can include one or more antennas configured to communicate with the node 720 or transmission station, such as a base station (BS), an evolved Node B (eNB), a baseband unit (BBU), a remote radio head (RRH), a remote radio equipment (RRE), a relay station (RS), a radio equipment (RE), a remote radio unit (RRU), a central processing module (CPM), or other type of wireless wide area network (WWAN) access point.
  • BS base station
  • eNB evolved Node B
  • BBU baseband unit
  • RRH remote radio head
  • RRE remote radio equipment
  • RS relay station
  • RE radio equipment
  • RRU remote radio unit
  • CCM central processing module
  • the node 720 can include one or more processors 722, memory 724 and a transceiver 726.
  • the UE device 700 can be configured to communicate using at least one wireless communication standard including 3 GPP LTE, WiMAX, High Speed Packet Access (HSPA), Bluetooth, and WiFi.
  • the UE device 700 can communicate using separate antennas for each wireless communication standard or shared antennas for multiple wireless communication standards.
  • the UE device 700 can communicate in a wireless local area network (WLAN), a wireless personal area network (WPAN), and/or a WWAN.
  • WLAN wireless local area network
  • WPAN wireless personal area network
  • WWAN wireless wide area network
  • the UE device 700 may include application circuitry 702, baseband circuitry 704, Radio Frequency (RF) circuitry 706, front-end module (FEM) circuitry 708 and one or more antennas 710, coupled together at least as shown.
  • the node 720 may include, similar to that described for the UE device 700, application circuitry, baseband circuitry, Radio Frequency (RF) circuitry, front-end module (FEM) circuitry and one or more antennas
  • the application circuitry 702 may include one or more application processors.
  • the application circuitry 702 may include circuitry such as, but not limited to, one or more single-core or multi-core processors.
  • the processor(s) may include any combination of general-purpose processors and dedicated processors (e.g., graphics processors, application processors, etc.).
  • the processors may be coupled with and/or may include a storage medium, and may be configured to execute instructions stored in the storage medium to enable various applications and/or operating systems to run on the system.
  • the baseband circuitry 704 may include circuitry such as, but not limited to, one or more single-core or multi-core processors.
  • the baseband circuitry 704 may include one or more baseband processors and/or control logic to process baseband signals received from a receive signal path of the RF circuitry 706 and to generate baseband signals for a transmit signal path of the RF circuitry 706.
  • Baseband processing circuity 704 may interface with the application circuitry 702 for generation and processing of the baseband signals and for controlling operations of the RF circuitry 706.
  • the baseband circuitry 704 may include a second generation (2G) baseband processor 704a, third generation (3G) baseband processor 704b, fourth generation (4G) baseband processor 704c, and/or other baseband processor(s) 704d for other existing generations, generations in development or to be developed in the future (e.g., fifth generation (5G), 6Q etc.).
  • the baseband circuitry 704 e.g., one or more of baseband processors 704a-d
  • the radio control functions may include, but are not limited to, signal
  • modulation/demodulation circuitry of the baseband circuitry 704 may include Fast-Fourier Transform (FFT), precoding, and/or constellation
  • encoding/decoding circuitry of the baseband circuitry 704 may include convolution, tail-biting convolution, turbo, Viterbi, and/or Low Density Parity Check (LDPC) encoder/decoder functionality.
  • LDPC Low Density Parity Check
  • Embodiments of modulation/demodulation and encoder/decoder functionality are not limited to these examples and may include other suitable functionality in other embodiments.
  • the baseband circuitry 704 may include elements of a protocol stack such as, for example, elements of an evolved universal terrestrial radio access network (EUTRAN) protocol including, for example, physical (PHY), media access control (MAC), radio link control (RLC), packet data convergence protocol (PDCP), and/or radio resource control (RRC) elements.
  • EUTRAN evolved universal terrestrial radio access network
  • a central processing unit (CPU) 704e of the baseband circuitry 704 may be configured to run elements of the protocol stack for signaling of the PHY, MAC, RLC, PDCP and/or RRC layers.
  • the baseband circuitry may include one or more audio digital signal processor(s) (DSP) 704f.
  • DSP audio digital signal processor
  • the audio DSP(s) 704f may be include elements for compression/decompression and echo cancellation and may include other suitable processing elements in other embodiments.
  • Components of the baseband circuitry may be suitably combined in a single chip, a single chipset, or disposed on a same circuit board in some embodiments.
  • some or all of the constituent components of the baseband circuitry 704 and the application circuitry 702 may be implemented together such as, for example, on a system on a chip (SOC).
  • SOC system on a chip
  • the baseband circuitry 704 may provide for
  • the baseband circuitry 704 may support communication with an evolved universal terrestrial radio access network (EUTRAN) and/or other wireless metropolitan area networks (WMAN), a wireless local area network (WLAN), a wireless personal area network (WPAN).
  • EUTRAN evolved universal terrestrial radio access network
  • WMAN wireless metropolitan area networks
  • WLAN wireless local area network
  • WPAN wireless personal area network
  • multi-mode baseband circuitry Embodiments in which the baseband circuitry 704 is configured to support radio communications of more than one wireless protocol.
  • the RF circuitry 706 may enable communication with wireless networks using modulated electromagnetic radiation through a non-solid medium.
  • the RF circuitry 706 may include switches, filters, amplifiers, etc. to facilitate the communication with the wireless network.
  • RF circuitry 706 may include a receive signal path which may include circuitry to down-convert RF signals received from the FEM circuitry 708 and provide baseband signals to the baseband circuitry 704.
  • RF circuitry 706 may also include a transmit signal path which may include circuitry to up-convert baseband signals provided by the baseband circuitry 704 and provide RF output signals to the FEM circuitry 708 for transmission.
  • the RF circuitry 706 may include a receive signal path and a transmit signal path.
  • the receive signal path of the RF circuitry 706 may include mixer circuitry 706a, amplifier circuitry 706b and filter circuitry 706c.
  • the transmit signal path of the RF circuitry 706 may include filter circuitry 706c and mixer circuitry 706a.
  • RF circuitry 706 may also include synthesizer circuitry 706d for synthesizing a frequency for use by the mixer circuitry 706a of the receive signal path and the transmit signal path.
  • the mixer circuitry 706a of the receive signal path may be configured to down-convert RF signals received from the FEM circuitry 708 based on the synthesized frequency provided by synthesizer circuitry 706d.
  • the amplifier circuitry 706b may be configured to amplify the down-converted signals and the filter circuitry 706c may be a low-pass filter (LPF) or band-pass filter (BPF) configured to remove unwanted signals from the down-converted signals to generate output baseband signals.
  • LPF low-pass filter
  • BPF band-pass filter
  • Output baseband signals may be provided to the baseband circuitry 704 for further processing.
  • the output baseband signals may be zero-frequency baseband signals, although this is not a necessity.
  • mixer circuitry 706a of the receive signal path may comprise passive mixers, although the scope of the embodiments is not limited in this respect.
  • the mixer circuitry 706a of the transmit signal path may be configured to up-convert input baseband signals based on the synthesized frequency provided by the synthesizer circuitry 706d to generate RF output signals for the FEM circuitry 708.
  • the baseband signals may be provided by the baseband circuitry 704 and may be filtered by filter circuitry 706c.
  • the filter circuitry 706c may include a low-pass filter (LPF), although the scope of the embodiments is not limited in this respect.
  • LPF low-pass filter
  • the mixer circuitry 706a of the receive signal path and the mixer circuitry 706a of the transmit signal path may include two or more mixers and may be arranged for quadrature down-conversion and/or up-conversion respectively.
  • the mixer circuitry 706a of the receive signal path and the mixer circuitry 706a of the transmit signal path may include two or more mixers and may be arranged for image rejection (e.g., Hartley image rejection).
  • the mixer circuitry 706a of the receive signal path and the mixer circuitry 706a may be arranged for direct down-conversion and/or direct up-conversion, respectively.
  • the mixer circuitry 706a of the receive signal path and the mixer circuitry 706a of the transmit signal path may be configured for super-heterodyne operation.
  • the output baseband signals and the input baseband signals may be analog baseband signals, although the scope of the embodiments is not limited in this respect.
  • the output baseband signals and the input baseband signals may be digital baseband signals.
  • the RF circuitry 706 may include analog-to-digital converter (ADC) and digital-to-analog converter (DAC) circuitry and the baseband circuitry 704 may include a digital baseband interface to communicate with the RF circuitry 706.
  • ADC analog-to-digital converter
  • DAC digital-to-analog converter
  • a separate radio IC circuitry may be provided for processing signals for each spectrum, although the scope of the embodiments is not limited in this respect.
  • the synthesizer circuitry 706d may be a fractional-N synthesizer or a fractional N/N+l synthesizer, although the scope of the embodiments is not limited in this respect as other types of frequency synthesizers may be suitable.
  • synthesizer circuitry 706d may be a delta-sigma synthesizer, a frequency multiplier, or a synthesizer comprising a phase-locked loop with a frequency divider.
  • the synthesizer circuitry 706d may be configured to synthesize an output frequency for use by the mixer circuitry 706a of the RF circuitry 706 based on a frequency input and a divider control input.
  • the synthesizer circuitry 706d may be a fractional N/N+l synthesizer.
  • frequency input may be provided by a voltage controlled oscillator (VCO), although that is not a necessity.
  • VCO voltage controlled oscillator
  • Divider control input may be provided by either the baseband circuitry 704 or the applications processor 702 depending on the desired output frequency.
  • a divider control input (e.g., N) may be determined from a look-up table based on a channel indicated by the applications processor 702.
  • Synthesizer circuitry 706d of the RF circuitry 706 may include a divider, a delay- locked loop (DLL), a multiplexer and a phase accumulator.
  • the divider may be a dual modulus divider (DMD) and the phase accumulator may be a digital phase accumulator (DPA).
  • the DMD may be configured to divide the input signal by either N or N+l (e.g., based on a carry out) to provide a fractional division ratio.
  • the DLL may include a set of cascaded, tunable, delay elements, a phase detector, a charge pump and a D-type flip-flop.
  • the delay elements may be configured to break a VCO period up into Nd equal packets of phase, where Nd is the number of delay elements in the delay line.
  • Nd is the number of delay elements in the delay line.
  • synthesizer circuitry 706d may be configured to generate a carrier frequency as the output frequency, while in other embodiments, the output frequency may be a multiple of the carrier frequency (e.g., twice the carrier frequency, four times the carrier frequency) and used in conjunction with quadrature generator and divider circuitry to generate multiple signals at the carrier frequency with multiple different phases with respect to each other.
  • the output frequency may be a LO frequency (fLO).
  • the RF circuitry 706 may include an IQ/polar converter.
  • FEM circuitry 708 may include a receive signal path which may include circuitry configured to operate on RF signals received from one or more antennas 710, amplify the received signals and provide the amplified versions of the received signals to the RF circuitry 706 for further processing.
  • FEM circuitry 708 may also include a transmit signal path which may include circuitry configured to amplify signals for transmission provided by the RF circuitry 706 for transmission by one or more of the one or more antennas 710.
  • the FEM circuitry 708 may include a TX/RX switch to switch between transmit mode and receive mode operation.
  • the FEM circuitry may include a receive signal path and a transmit signal path.
  • the receive signal path of the FEM circuitry may include a low-noise amplifier (LNA) to amplify received RF signals and provide the amplified received RF signals as an output (e.g., to the RF circuitry 706).
  • LNA low-noise amplifier
  • the transmit signal path of the FEM circuitry 708 may include a power amplifier (PA) to amplify input RF signals (e.g., provided by RF circuitry 706), and one or more filters to generate RF signals for subsequent transmission (e.g., by one or more of the one or more antennas 710.
  • PA power amplifier
  • FIG. 8 provides an example illustration of the wireless device, such as a user equipment (UE), a mobile station (MS), a mobile wireless device, a mobile
  • the wireless device can include one or more antennas configured to communicate with a node, macro node, low power node (LPN), or, transmission station, such as a base station (BS), an evolved Node B (eNB), a baseband processing unit (BBU), a remote radio head (RRH), a remote radio equipment (RRE), a relay station (RS), a radio equipment (RE), or other type of wireless wide area network (WWAN) access point.
  • the wireless device can be configured to communicate using at least one wireless communication standard such as, but not limited to, 3 GPP LTE, WiMAX, High Speed Packet Access (HSPA), Bluetooth, and WiFi.
  • the wireless device can communicate using separate antennas for each wireless communication standard or shared antennas for multiple wireless communication standards.
  • the wireless device can communicate in a wireless local area network
  • the wireless device can also comprise a wireless modem.
  • the wireless modem can comprise, for example, a wireless radio transceiver and baseband circuitry (e.g., a baseband processor).
  • the wireless modem can, in one example, modulate signals that the wireless device transmits via the one or more antennas and demodulate signals that the wireless device receives via the one or more antennas.
  • FIG. 8 also provides an illustration of a microphone and one or more speakers that can be used for audio input and output from the wireless device.
  • the display screen can be a liquid crystal display (LCD) screen, or other type of display screen such as an organic light emitting diode (OLED) display.
  • LCD liquid crystal display
  • OLED organic light emitting diode
  • the display screen can be configured as a touch screen.
  • the touch screen can use capacitive, resistive, or another type of touch screen technology.
  • An application processor and a graphics processor can be coupled to internal memory to provide processing and display capabilities.
  • a non-volatile memory port can also be used to provide data input/output options to a user.
  • the non-volatile memory port can also be used to expand the memory capabilities of the wireless device.
  • a keyboard can be integrated with the wireless device or wirelessly connected to the wireless device to provide additional user input.
  • a virtual keyboard can also be provided using the touch screen.
  • Example 1 includes an apparatus of a base station operable to assist in vehicle-to- vehicle (V2V) communication, the apparatus comprising one or more processors configured to: decode, at the base station, a plurality of reports received from a plurality of user equipments (UEs) that are configured for V2V communication (vUEs), the reports including state information for the vUEs; aggregate, at the base station, the state information for the vUEs included in the plurality of reports to generate aggregated network state information; determine, at the base station, a network state for V2V communication using the aggregated network state information, wherein the network state for V2V communication indicates a probability level of V2V message collisions between the plurality of vUEs; select, at the base station, a transmission mode to be used by the plurality of vUEs when broadcasting V2V messages, wherein the transmission mode is selected based on the network state for V2V communication; and signal, at the base station, the selected transmission mode for transmission to the plurality of vUE
  • Example 2 includes the apparatus of Example 1, further comprising a transceiver configured to: receive the plurality of reports from the plurality of vUEs; and transmit the transmission mode to the plurality of vUEs.
  • Example 3 includes the apparatus of any of Examples 1 to 2, further comprising memory configured to store one or more of: the state information for the vUEs, the network state for V2V communication, or the selected transmission mode.
  • Example 4 includes the apparatus of any of Examples 1 to 3, wherein the state information for the vUEs included in the plurality of reports received from the plurality of vUEs includes one or more of: channel state information (CSI), interference level information or decoding failure information.
  • CSI channel state information
  • Example 5 includes the apparatus of any of Examples 1 to 4, wherein the one or more processors are further configured to: monitor, at the base station, a plurality of V2V messages that are broadcasted from the plurality of vUEs, the V2V messages including state information for the vUEs; and generate the aggregated network state information using the state information for the vUEs included in the plurality of V2V messages.
  • Example 6 includes the apparatus of any of Examples 1 to 5, wherein the one or more processors are further configured to select the transmission mode to include a reduced modulation and coding scheme (MCS) and no repetitions when the network state for V2V communication indicates a decreased probability level of V2V message collisions between the plurality of vUEs.
  • MCS modulation and coding scheme
  • Example 7 includes the apparatus of any of Examples 1 to 6, wherein the one or more processors are further configured to select the transmission mode to include an increased modulation and coding scheme (MCS) and repetitions when the network state for V2V communication indicates an increased probability level of V2V message collisions between the plurality of vUEs.
  • MCS modulation and coding scheme
  • Example 8 includes the apparatus of any of Examples 1 to 7, wherein the one or more processors are further configured to signal the selected transmission mode for transmission to the plurality of vUEs via a downlink control indicator (DCI).
  • DCI downlink control indicator
  • Example 9 includes the apparatus of any of Examples 1 to 8, wherein the one or more processors are further configured to signal the selected transmission mode for transmission to the plurality of vUEs via radio resource control (RRC) signaling.
  • RRC radio resource control
  • Example 10 includes the apparatus of any of Examples 1 to 9, wherein the base station includes a road side-unit (RSU).
  • RSU road side-unit
  • Example 11 includes an apparatus of a user equipment configured for vehicle-to- vehicle (V2V) communication (vUE), the apparatus comprising one or more processors configured to: decode, at the vUE, a selected transmission mode received from a base station, wherein the selected transmission mode includes a modulation and coding scheme (MCS) and a repetition number to be used by a plurality of vUEs when broadcasting V2V messages, and the selected transmission mode is determined based on a network state for V2V communication that indicates a probability level of V2V message collisions between the plurality of vUEs; and signal, at the vUE, a V2V message for broadcast to the plurality of vUEs in accordance with the selected transmission mode.
  • V2V vehicle-to- vehicle
  • Example 12 includes the apparatus of Example 11, further comprising a transceiver configured to: receive the selected transmission mode from the base station; and broadcast the V2V message to the plurality of vUEs.
  • Example 13 includes the apparatus of any of Examples 11 to 12, wherein the one or more processors are further configured to signal one or more reports for transmission to the base station, wherein the reports include state information for the vUEs that contains one or more of: channel state information (CSI), interference level information or decoding failure information.
  • CSI channel state information
  • Example 14 includes the apparatus of any of Examples 11 to 13, wherein the selected transmission mode includes a reduced MCS and no repetitions when the network state for V2V communication indicates a decreased probability level of V2V message collisions between the plurality of vUEs.
  • Example 15 includes the apparatus of any of Examples 11 to 14, wherein the selected transmission mode includes an increased MCS and repetitions when the network state for V2V communication indicates an increased probability level of V2V message collisions between the plurality of vUEs.
  • Example 16 includes the apparatus of any of Examples 11 to 15, wherein the one or more processors are further configured to decode the selected transmission mode received from the base station via a downlink control indicator (DCI).
  • DCI downlink control indicator
  • Example 17 includes the apparatus of any of Examples 11 to 16, wherein the one or more processors are further configured to decode the selected transmission mode received from the base station via radio resource control (RRC) signaling.
  • RRC radio resource control
  • Example 18 includes at least one machine readable storage medium having instructions embodied thereon for assisting vehicle-to-vehicle (V2V) communications at a base station, the instructions when executed by one or more processors at the base station perform the following: decoding, at the base station, a plurality of reports received from a plurality of user equipments (UEs) that are configured for V2V communication (vUEs), the reports including state information for the vUEs; aggregating, at the base station, the state information for the vUEs included in the plurality of reports to generate aggregated network state information; determining, at the base station, a network state for V2V communication using the aggregated network state information, wherein the network state for V2V communication indicates a probability level of V2V message collisions between the plurality of vUEs; selecting, at the base station, a transmission mode to be used by the plurality of vUEs when broadcasting V2V messages, wherein the
  • transmission mode is selected based on the network state for V2V communication; and signaling, at the base station, the selected transmission mode for transmission to the plurality of vUEs.
  • Example 19 includes the at least one machine readable storage medium of Example 18, wherein the plurality of reports received from the plurality of vUEs includes one or more of: channel state information (CSI), interference level information or decoding failure information.
  • CSI channel state information
  • Example 20 includes the at least one machine readable storage medium of any of Examples 18 to 19, further comprising instructions when executed perform the following: selecting the transmission mode to include a reduced modulation and coding scheme (MCS) and no repetitions when the network state for V2V communication indicates a decreased probability level of V2V message collisions between the plurality of vUEs.
  • MCS modulation and coding scheme
  • Example 21 includes the at least one machine readable storage medium of any of Examples 18 to 20, further comprising instructions when executed perform the following: selecting the transmission mode to include an increased modulation and coding scheme (MCS) and repetitions when the network state for V2V communication indicates an increased probability level of V2V message collisions between the plurality of vUEs.
  • Example 22 includes the at least one machine readable storage medium of any of Examples 18 to 21, further comprising instructions when executed perform the following: signaling the selected transmission mode for transmission to the plurality of vUEs via a downlink control indicator (DO).
  • MCS modulation and coding scheme
  • Example 23 includes the at least one machine readable storage medium of any of Examples 18 to 22, further comprising instructions when executed perform the following: signaling the selected transmission mode for transmission to the plurality of vUEs via radio resource control (RRC) signaling.
  • RRC radio resource control
  • Example 24 includes the at least one machine readable storage medium of any of Examples 18 to 23, wherein the base station includes a road side-unit (RSU).
  • RSU road side-unit
  • Example 25 includes a base station operable to assist in vehicle-to-vehicle (V2V) communications, the base station comprising: means for decoding a plurality of reports received from a plurality of user equipments (UEs) that are configured for V2V communication (vUEs), the reports including state information for the vUEs; means for aggregating the state information for the vUEs included in the plurality of reports to generate aggregated network state information; means for determining a network state for V2V communication using the aggregated network state information, wherein the network state for V2V communication indicates a probability level of V2V message collisions between the plurality of vUEs; means for selecting a transmission mode to be used by the plurality of vUEs when broadcasting V2V messages, wherein the
  • transmission mode is selected based on the network state for V2V communication; and means for signaling the selected transmission mode for transmission to the plurality of vUEs.
  • Example 26 includes the base station of Example 25, wherein the plurality of reports received from the plurality of vUEs includes one or more of: channel state information (CSI), interference level information or decoding failure information.
  • CSI channel state information
  • Example 27 includes the base station of any of Examples 25 to 26, further comprising means for selecting the transmission mode to include a reduced modulation and coding scheme (MCS) and no repetitions when the network state for V2V
  • MCS modulation and coding scheme
  • Example 28 includes the base station of any of Examples 25 to 27, further comprising means for selecting the transmission mode to include an increased modulation and coding scheme (MCS) and repetitions when the network state for V2V
  • MCS modulation and coding scheme
  • Example 29 includes the base station of any of Examples 25 to 28, further comprising means for signaling the selected transmission mode for transmission to the plurality of vUEs via a downlink control indicator (DCI).
  • DCI downlink control indicator
  • Example 30 includes the base station of any of Examples 25 to 29, further comprising means for signaling the selected transmission mode for transmission to the plurality of vUEs via radio resource control (RRC) signaling.
  • RRC radio resource control
  • Example 31 includes the base station of any of Examples 25 to 30, wherein the base station includes a road side-unit (RSU).
  • RSU road side-unit
  • Various techniques, or certain aspects or portions thereof, may take the form of program code (i.e., instructions) embodied in tangible media, such as floppy diskettes, compact disc-read-only memory (CD-ROMs), hard drives, non-transitory computer readable storage medium, or any other machine-readable storage medium wherein, when the program code is loaded into and executed by a machine, such as a computer, the machine becomes an apparatus for practicing the various techniques.
  • the computing device may include a processor, a storage medium readable by the processor (including volatile and nonvolatile memory and/or storage elements), at least one input device, and at least one output device.
  • the volatile and non-volatile memory and/or storage elements may be a random-access memory (RAM), erasable programmable read only memory (EPROM), flash drive, optical drive, magnetic hard drive, solid state drive, or other medium for storing electronic data.
  • the node and wireless device may also include a transceiver module (i.e., transceiver), a counter module (i.e., counter), a processing module (i.e., processor), and/or a clock module (i.e., clock) or timer module (i.e., timer).
  • transceiver module i.e., transceiver
  • a counter module i.e., counter
  • a processing module i.e., processor
  • a clock module i.e., clock
  • timer module i.e., timer
  • selected components of the transceiver module can be located in a cloud radio access network (C-RAN).
  • C-RAN cloud radio access network
  • One or more programs that may implement or utilize the various techniques described herein may use an application programming interface (API), reusable controls, and the like.
  • API application programming interface
  • Such programs may be implemented in a high level procedural or object oriented programming language to communicate with a computer system.
  • the program(s) may be implemented in assembly or machine language, if desired.
  • the language may be a compiled or interpreted language, and combined with hardware implementations.
  • circuitry may refer to, be part of, or include an Application Specific Integrated Circuit (ASIC), an electronic circuit, a processor (shared, dedicated, or group), and/or memory (shared, dedicated, or group) that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable hardware components that provide the described functionality.
  • ASIC Application Specific Integrated Circuit
  • the circuitry may be implemented in, or functions associated with the circuitry may be implemented by, one or more software or firmware modules.
  • circuitry may include logic, at least partially operable in hardware.
  • modules may be implemented as a hardware circuit comprising custom very-large-scale integration (VLSI) circuits or gate arrays, off-the-shelf semiconductors such as logic chips, transistors, or other discrete components.
  • VLSI very-large-scale integration
  • a module may also be implemented in programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices or the like.
  • Modules may also be implemented in software for execution by various types of processors.
  • An identified module of executable code may, for instance, comprise one or more physical or logical blocks of computer instructions, which may, for instance, be organized as an object, procedure, or function. Nevertheless, the executables of an identified module may not be physically located together, but may comprise disparate instructions stored in different locations which, when joined logically together, comprise the module and achieve the stated purpose for the module.
  • a module of executable code may be a single instruction, or many instructions, and may even be distributed over several different code segments, among different programs, and across several memory devices.
  • operational data may be identified and illustrated herein within modules, and may be embodied in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed over different locations including over different storage devices, and may exist, at least partially, merely as electronic signals on a system or network.
  • the modules may be passive or active, including agents operable to perform desired functions.

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  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne une technologie destinée à une station de base et rendant possible une communication de véhicule à véhicule (V2V). La station de base peut décoder une pluralité de rapports reçus en provenance d'une pluralité d'équipements utilisateurs (UE) qui sont configurés pour une communication V2V (vUE). Les rapports peuvent comprendre des informations d'état pour les vUE. La station de base peut agréger les informations d'état pour les vUE inclus dans la pluralité de rapports afin de générer des informations d'état de réseau agrégées. La station de base peut déterminer un état de réseau pour une communication V2V à l'aide des informations d'état de réseau agrégées. La station de base peut sélectionner un mode de transmission à utiliser par la pluralité de vUE lors de la diffusion de messages V2V. Le mode de transmission peut être sélectionné sur la base de l'état de réseau pour une communication V2V. La station de base peut signaler le mode de transmission sélectionné pour une transmission à la pluralité de vUE.
PCT/US2016/068755 2016-10-28 2016-12-27 Mode de transmission assisté par réseau pour communication de véhicule à véhicule (v2v) WO2018080568A1 (fr)

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CN115039510A (zh) * 2021-01-07 2022-09-09 北京小米移动软件有限公司 能力发送方法和装置、能力接收方法和装置
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