techniques and devices for autonomous selection of resources for vehicle transmissions for all (v2x)

专利摘要:
Certain aspects of the present disclosure generally refer to wireless communication. In some respects, a user equipment (UE) may set a limit on the number of resource blocks (RBs) allowed to be used for a vehicle-to-everything (V2X) transmission by the UE; can determine, based at least in part on the limit, one or more parameters for V2X transmission, where one or more parameters include at least one of a modulation and encoding scheme (MCS) for V2X transmission, a number of blocks transport (TBs) for V2X transmission, a number of RBs per TB for V2X transmission, or a relay configuration for V2X transmission; and can transmit the V2X transmission based at least in part on one or more parameters. Numerous other aspects are provided.
公开号:BR112020006061A2
申请号:R112020006061-5
申请日:2018-07-26
公开日:2020-09-29
发明作者:Arvind Santhanam；Scott Hoover；Yunsong Mu；Yuanbo WANG；Gang Xiao；Haiqin LIU；Subramanya RAO；Taoufik Tani；Feng Lu
申请人:Qualcomm Incorporated；
IPC主号:

专利说明:

[001] [001] The present application claims priority to provisional US patent application no. 62 / 567,045 filed on October 2, 2017 entitled “TECHNIQUES
[002] [002] Aspects of the present disclosure refer in general to wireless communication, and more particularly to techniques and devices for selection of autonomous resource for V2X transmissions. INTRODUCTION
[003] [003] Wireless communication systems are widely used to provide various telecommunication services, such as telephony, video, data, messaging and broadcasts. Typical wireless communication systems employ multiple access technologies capable of supporting communication with multiple users by sharing available system resources (for example, bandwidth, transmission power and / or the like). Examples of such multiple access technologies include code division multiple access (CDMA) systems,
[004] [004] A wireless communication network can include several base stations (BSs) that can support communication for different user equipment (UEs). User equipment (UE) can communicate with a base station (BS) via a downlink and an uplink. The downlink (or direct link) refers to the communication link from the BS to the UE, and the uplink (or reverse link) refers to the communication link from the UE to the BS. As will be described in more detail in the present invention, a BS can be referred to as a Node B, a gNB, an access point (AP), a radio head and a receive and transmit point (TRP), a new radio BS (NR), a Node B 5G. and / or similar.
[005] [005] The multiple access technologies above have been adopted in several telecommunication standards to provide a common protocol that enables different user equipment to communicate at a municipal level,
[006] [006] In some ways, a wireless communication method, performed by user equipment (UE) may include setting a limit on the number of resource blocks (RBs) allowed to be used for a vehicle transmission for everything (V2X ) by the EU; determine, based at least in part on the limit, one or more parameters for V2X transmission, where one or more parameters include at least one of a modulation and coding scheme (MSC) for V2X transmission, a number of transport blocks (TBs) for V2X transmission, a number of RBs per TB for V2X transmission, or a relay configuration for V2X transmission; and transmit the V2X transmission based at least in part on one or more parameters.
[007] [007] In some respects, a UE for wireless communication may include memory and one or more processors operatively coupled to the memory. The memory and one or more processors can be configured to set a limit on the number of resource blocks (RBs) allowed to be used for a vehicle for all (V2X) transmission by the UE; determine, based at least in part on the limit, one or more parameters for V2X transmission, where one or more parameters include at least one of a modulation and coding scheme (MSC) for V2X transmission, a number of transport blocks (TBs) for V2X transmission, a number of RBs per TB for V2X transmission, or a relay configuration for V2X transmission; and transmit the V2X transmission based at least in part on one or more parameters.
[008] [008] In some respects, non-transitory, computer-readable media can store one or more instructions for wireless communication. One or more instructions, when executed by one or more processors in a UE, can cause one or more processors to set a limit on the number of resource blocks (RBs) allowed to be used for a vehicle-to-everything (V2X) transmission by HUH; determine, based at least in part on the limit, one or more parameters for V2X transmission, where one or more parameters include at least one of a modulation and coding scheme (MSC) for V2X transmission, a number of transport blocks (TBs) for V2X transmission, a number of RBs per TB for V2X transmission, or a relay configuration for V2X transmission; and transmit the V2X transmission based at least in part on one or more parameters.
[009] [009] In some respects, a device for wireless communication may include a means to determine a limit on a number of resource blocks (RBs) allowed to be used for a vehicle to everything (V2X) transmission by the device; means for determining, based at least in part on the limit, one or more parameters for the V2X transmission, wherein one or more parameters include at least one of a modulation and encoding scheme (MSC) for the V2X transmission, a number of blocks transport (TBs) for V2X transmission, a number of RBs per TB for V2X transmission, or a relay configuration for V2X transmission; and means for transmitting the V2X transmission based at least in part on one or more parameters.
[0010] [0010] Aspects generally include a method, apparatus, system, computer program product, non-transitory computer-readable media, user equipment, wireless communication device and processing system as substantially described in the present invention with reference to and how illustrated by the attached drawings and descriptive report.
[0011] [0011] The above outlined the characteristics and technical advantages of the examples in a very broad way according to the disclosure so that the detailed description that follows can be better understood. Additional features and advantages will be described below. The specific design and examples revealed can be readily used as a basis for modifying or designing other structures to accomplish the same purposes as the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. Characteristics of the concepts revealed in the present invention, both their organization and method of operation, together with associated advantages will be better understood from the following description when considered in relation to the attached figures. Each of the figures is provided for purposes of illustration and description and not as a definition of the limits of the claims. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] [0012] In order for the way in which the above-mentioned characteristics of the present disclosure can be understood in detail, one can have a more specific description, briefly summarized above, by reference to aspects, some of which are illustrated in the attached drawings. It should be noted, however, that the attached drawings illustrate only certain aspects typical of this disclosure and, therefore, should not be considered as limiting its scope, as the description may admit other equally effective aspects. The same reference numbers in different drawings can identify the same or similar elements.
[0013] [0013] Figure 1 is a block diagram illustrating conceptually an example of a wireless communication network, according to certain aspects of the present disclosure.
[0014] [0014] Figure 2 is a block diagram illustrating conceptually an example of a base station communicating with user equipment (UE) in a wireless communication network, according to certain aspects of the present disclosure.
[0015] [0015] Figure 3 is a block diagram conceptually illustrating an example of V2X communication via a sidelink, according to certain aspects of the present disclosure.
[0016] [0016] Figures 4 and 5 are diagrams illustrating examples of autonomous resource selection for V2X transmissions, according to various aspects of the present disclosure.
[0017] [0017] Figure 6 is a diagram illustrating an example process carried out, for example, by user equipment, according to various aspects of the present disclosure. DETAILED DESCRIPTION
[0018] [0018] In a wireless vehicle for all (V2X) communication system, UEs can communicate directly using device-to-device communication, also known as sidelink communication, without using a base station as an intermediary. In some cases, a UE can operate using broadcast mode 4, where resource and / or programming selection is performed by the UE instead of a base station. In some respects, the UE may perform resource selection and / or programming by measuring one or more sidelink channels, by decoding sidelink control information (SCI) that indicates channel availability, by determining an associated busy channel rate (CBR) to various sidelink and / or similar channels.
[0019] [0019] In transmission mode 4, a UE can generate sidelink grants, We can transmit sidelink grants in SCI. A sidelink lease may indicate, for example, one or more parameters (for example, transmission parameters) to be used for a future V2X transmission (for example, a V2X data transmission) as one or more resource blocks to be used for future V2X transmission, one or more subframes to be used for future V2X transmission, a modulation and coding scheme (MCS) to be used for future and / or similar V2X transmission.
[0020] [0020] In V2X communication systems, conditions of the sidelink channel used to carry V2X communications can vary widely and change rapidly due to the high mobility of vehicles and UEs associated with the vehicles, large variations in vehicle traffic at different times of day and in different locations, a wide variety of topographies that vehicles can traverse (for example, dense urban environments, mountainous environments, flat environments, etc.) and / or the like. In addition, V2X communication systems need to be highly reliable due to mission critical safety issues associated, for example, with autonomous vehicles. Some techniques and devices described in the present invention improve the performance of V2X communication systems by dynamically determining parameters for V2X transmissions based at least in part on dynamic factors associated with one or more vehicles, the sidelink channel and / or the like.
[0021] [0021] Various aspects of the disclosure are described more fully below with reference to the accompanying drawings. This revelation can, however, be incorporated in many different forms and should not be interpreted as limited to any specific structure or function presented by this entire revelation. Instead, these aspects are provided so that this disclosure is thorough and complete, and will fully pass the scope of the disclosure on to those skilled in the art. Based on the teachings of the present invention, a person skilled in the art should recognize that the scope of the disclosure is intended to cover any aspects of the disclosure disclosed in the present invention, whether implemented independently of or combined with any other aspects of the disclosure. For example, an apparatus can be implemented or a method can be put into practice using any number of aspects set out here. In addition, the scope of the disclosure is intended to cover such an apparatus or method that is put into practice using another structure, functionality or structure and functionality in addition to or different from the various aspects of the disclosure set forth in the present invention. It is to be understood that any aspect of the disclosure disclosed in the present invention can be incorporated by one or more elements of a claim.
[0022] [0022] Various aspects of telecommunication systems will now be presented with reference to various devices and techniques. These devices and techniques will be described in the detailed description below and illustrated in the attached drawings by various blocks, modules, components, circuits, steps, processes,
[0023] [0023] It is noted that although aspects can be described in the present invention using terminology commonly associated with 3G and / or 46 wireless technologies, aspects of the present disclosure can be applied in other generation-based communication systems, such as 5G and later, including NR technologies.
[0024] [0024] Figure 1 is a diagram illustrating a network 100 in which aspects of the present disclosure can be put into practice, the network 100 can be an LTE network, an NR or 5G network and / or similar. Wireless network 100 can include several BSs 110 (shown as BS l110a, BS 110b, BS 110c, and BS 110d) and other network entities. A BS is an entity that communicates with user equipment (UEs) and can also be referred to as a base station, a BS NR, a Node B, a 9gNB, a B 5G (NB) node, an access point, a receiving transmission point (TRP) and / or similar. Each BS can provide communication coverage for a specific geographic area. In 3GPP, the term "cell" can refer to a BS coverage area and / or a BS subsystem serving that coverage area, depending on the context in which the term is used.
[0025] [0025] A BS can provide communication coverage for a macro cell, a peak cell, a femto cell and / or another type of cell. A macro cell can cover a relatively large geographical area (for example, several kilometers in radius) and can allow unrestricted access by UEs with a service subscription. A peak cell can cover a relatively small geographical area and can allow unrestricted access by UEs with a service subscription. A femto cell can cover a relatively small geographic area (for example, a house) and can allow access restricted by UEs having association with the femto cell (for example, UEs in a closed subscriber group (CSG)). A BS for a macro cell can be referred to as a macro BS. A BS for a peak cell can be referred to as a peak BS. A BS for a femto cell can be referred to as a femto BS or a domestic BS. In the example shown in figure 1, a BS 110a can be a macro BS for a macro cell 102a, a BS 110b can be a peak BS for a peak cell 102b and a BS ll10c can be a femto BS for a femto cell 102c. a BS can support one or multiple (for example, three) cells. The terms "eNB", "base station", "NR BS", "gNB", "TRP", "AP", "node B", "5G NB" and "cell" can be used interchangeably in the present invention .
[0026] [0026] In some examples, a cell may not necessarily be stationary, and the cell's geographical area may move according to the location of a mobile BS. In some examples, BSs can be interconnected with each other and / or with one or more other BSs or network nodes (not shown) on access network 100 through various types of backhaul interfaces such as a direct physical connection, a virtual network and / or similar using any suitable transportation network.
[0027] [0027] The wireless network 100 may also include relay stations. A relay station is an entity that can receive a data transmission from an upstream station (for example, a BS or a UE) and send a data transmission to a downstream station (for example, a UE or a BS). A relay station can also be a UE that can relay transmissions to other UEs. In the example shown in figure 1, a relay station 110d can communicate with BS macro l110a and a UE 120d to facilitate communication between BS 110a and UE 120d. A relay station can also be referred to as a relay BS, a relay base station, a relay and / or the like.
[0028] [0028] Wireless network 100 may be a heterogeneous network that includes BSs of different types, for example, macro BSs, peak BSs, femto BSs, relay BSs and / or the like. These different types of BSs can have different transmit power levels, different coverage areas and different impact on interference in a wireless network 100. For example, macro BSs can have a high transmit power level (for example, 5 to 40 Watts) whereas peak BSs, femto BSs, and retransmission BSs may have lower transmit power levels (for example, 0.1 to 2 Watts).
[0029] [0029] A network controller 130 can couple with a set of BSs and can provide coordination and control for those BSs. The network controller 130 can communicate with the BSs via a backhaul. BSs can also communicate with each other, for example, directly or indirectly through a wireless backhaul or with fixed telephony.
[0030] [0030] UEs 120 (e.g. 120a, 120b, 120c) can be dispersed throughout the wireless network 100, and each UE can be stationary or mobile. A UE can also be mentioned as an access terminal, terminal, mobile station, subscriber unit, station and / or the like. An UE can be a cell phone (for example, a smart phone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a portable device, a laptop computer, a cordless phone, a local wireless loop station (WLL), a tablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook, medical device or device, "biometric" devices / sensors, wearable devices (smart watches, smart clothes, smart glasses, smart wrist bands, smart jewelry (for example, smart ring, smart bracelet)), an entertainment device (for example, a music or video device, or a satellite radio), a sensor or vehicle component, sensors / smart meters, industrially manufactured equipment, a global positioning system device, or any other suitable device that is configured to communicate wirelessly or wired.
[0031] [0031] Some UEs can be considered as machine-type communication (MTC) or improved machine-type communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices such as sensors, meters, monitors, location tags and / or the like, which can communicate with a base station, another device (for example, remote device) or some another entity. A wireless node can provide, for example, connectivity to or with a network (for example, a remote area network such as the Internet or a cellular network), via a wired or wireless communication link. Some UEs can be considered Internet of Things (IoT) devices and / or can be implemented as they can be implemented as NB-IoT (narrowband Internet of Things) devices. Some UEs can be considered as a customer's Dependency Equipment (CPE). The UE 120 can be included within a housing that houses UE 120 components such as processor components, memory components and / or the like.
[0032] [0032] In general, any number of wireless networks can be deployed in a given geographical area. Each wireless network can support a specific RAT and can operate on one or more frequencies. A RAT can also be mentioned as a radio technology, an air interface and / or the like. A frequency can also be mentioned as a carrier, a frequency channel and / or the like. Each frequency can support a single RAT in a given geographic area to avoid interference between wireless networks from different RATs. In some cases, RAT 5G or NR networks can be deployed.
[0033] [0033] In some respects, two or more UFEs 120 (for example, shown as UE 120a and UE 120e) can communicate directly using one or more sidelink channels (for example, without using a base station 110 as an intermediary to communicate each other). For example,
[0034] [0034] As shown in figure 1, the UE 120 can include a communication manager 140. As described in more detail elsewhere in the present invention, communication manager 140 can determine a limit on a number of resource blocks (RBs) ) allowed to be used for a V2X transmission by UE 120, can determine one or more parameters for the V2X transmission based at least in part on the boundary can transmit the V2X transmission based at least in part on one or more parameters and / or similar . Additionally or alternatively, the communication manager 140 can perform one or more other operations described in the present invention.
[0035] [0035] As indicated above, figure 1 is provided merely as an example. Other examples are possible and may differ from what has been described in relation to figure 1.
[0036] [0036] Figure 2 shows a block diagram of a base station design 110 and UE 120, which can be one of the base stations and one of the UEs in figure 1. The base station 110 can be equipped with antennas T 234a up to 234t, and UE 120 can be equipped with antennas R 252a up to 252r, where in general T> l1leR> 1.
[0037] [0037] At base station 110, a transmission processor 220 can receive data from a data source 212 to one or more UEs, select one or more modulation and encoding schemes (MCS) for each UE based on at least part in the channel quality indicators (CQIs) received from the UE, process (for example, encode and modular) the data for each UE based at least in part on the MCS (s) selected for the UE and provide symbols of data for all UEs. The transmission processor 220 can also process system information (for example, for semi-static resource division (SRPI) and / or similar information) and control information (for example, CQI requests, leases, upper layer signaling , and / or similar) and provide overhead symbols and control symbols. The transmission processor 220 can also generate reference symbols for reference signals (CRS)) and synchronization signals (for example, the primary synchronization signal (PSS) and secondary synchronization signal (SSS)). A transmission (TX) 230 multiple input multiple output (MIMO) processor can perform spatial processing (for example, pre-coding) on data symbols, control symbols, overhead symbols and / or reference symbols, if applicable, and can provide T output symbol streams for T modulators (Mods) 232a through 232t. Each modulator 232 can process a respective output symbol stream (for example, for OFDM, etc.) to obtain an output sample stream. Each 232 modulator can further process (for example, convert to analog, amplify, filter and upwardly convert) the output sample stream to obtain a downlink signal. Downlink T signals from modulators 232a through 232t can be transmitted through antennas 234a through 2334t, respectively. According to certain aspects described in more detail below, synchronization signals can be generated with location coding to transfer additional information.
[0038] [0038] At UE 120, antennas 252a through 252r can receive downlink signals from base station 110 and / or other base stations and can provide received signals to demodulators (DEMODs) 254a through 254r, respectively. Each demodulator 254 can condition (for example, filter, amplify, downwardly convert and digitize) a respective received signal to obtain input samples. Each demodulator 254 can further process the input samples (for example, for OFDM, and / or the like) to obtain received symbols. A MIMO 256 detector can obtain symbols received from all demodulators 254a through 254r, perform MIMO detection on received symbols if applicable, and provide detected symbols. A receiving processor 258 can process (e.g., demodulate and decode) the detected symbols, provide decoded data to UE 120 for a 260 data warehouse, and provide decoded control information and system information to a controller / processor 280. One channel processor can determine received signal strength (RSRP), received signal strength indicator (RSSI), received reference signal quality (RSRQ), channel quality indicator (CQI) and / or the like.
[0039] [0039] In the uplink, in the UE 120, a transmission processor 264 can receive and process data from a data source 262 and control information (for example, for reports comprising RSRP, RSSI, RSRQ, COI, and / or similar) from the controller / processor
[0040] [0040] Although figure 2 illustrates components of a base station 110, a UE 120 and a network controller 130 for completeness, in some respects two or more UEs 120 can communicate directly with each other through a sidelink (for example, without communicate with a base station 110 as an intermediary). In that case, one or more components of the UE 120 may perform one or more operations or functions described in the present invention as being performed by one or more components of the base station 110 (for example, for programming, feature selection and / or the like). Additional details regarding direct EU to EU communications are described below with respect to figure 3.
[0041] [0041] In some respects, one or more components of UE 120 may be included in a housing. The controller / processor 280 of UE 120 and / or any other component (s) of figure 2 can perform one or more techniques associated with the autonomous selection of resources for V2X transmissions, as described in more detail elsewhere in the present invention. . For example, controller / processor 280 of UE 120 and / or any other component (s) of figure 2 can perform or direct operations, for example, of process 600 of figure 6 and / or other processes as described herein invention. Memories 242 and 282 can store data and program codes for base station 110 and UE 120, respectively. A 246 programmer can program UEs for data transmission on the downlink and / or uplink.
[0042] [0042] In some respects, the UE 120 may include a means of determining a limit on a number of resource blocks (RBs) allowed to be used for a V2X transmission by the UE 120, a means of determining one or more parameters for the V2X transmission with base at least partly on the limit, means to transmit the V2X transmission based at least partly on one or more parameters and / or similar. Additionally, or alternatively, the UE 120 may include means for performing one or more other operations described in the present invention. Additionally or alternatively, such means may include one or more components of the UE 120 described with reference to figure 2.
[0043] [0043] As indicated above, figure 2 is provided merely as an example. Other examples are possible and may differ from what has been described in relation to figure 2.
[0044] [0044] Figure 3 is a block diagram illustrating conceptually an example 300 of V2X communications through a sidelink, according to certain aspects of the present disclosure.
[0045] [0045] As shown in figure 3, a first UE 305-1 can communicate with a second UE 305-2 (and one or more other UEs 305) using device-to-device (D2D) communications through one or more sidelink channels 310. In some respects, UEs 305 may correspond to one or more other UEs described elsewhere in the present invention, such as UE 120 and / or similar. In some respects, the sidelink channel 310 may use a PC5 interface and / or may operate in a high frequency band (for example, the 5.9 GHz band). Additionally or alternatively, UES 305 can synchronize the timing of transmission time slots (eg, frames, subframes, partitions, and / or the like) using global navigation satellite system (GNSS) timing. UEs 305 can transmit V2X communications using sidelink channel 310.
[0046] [0046] In some respects, V2X transmissions can be one to many broadcast and / or multicast transmissions. In some respects, V2X transmissions may not require any physical layer feedback from the receiving devices, such as acknowledgment feedback (ACK) or negative acknowledgment (NACK). In some ways, V2X transmissions can be configured without retransmission. In some respects, V2X transmissions can be configured with a small number of retransmissions (for example, a retransmission) that always occur (for example, without ACK / NACK feedback).
[0047] [0047] As additionally shown in figure 3, sidelink channel 310 can include a physical sidelink control channel (PSCCH) 315 and a shared physical sidelink channel (PSSCH) 320. PSCCH 315 can be used to communicate information from control, similar to a physical downlink control channel (PDCCH) and / or a physical uplink control channel (PUCCH) used for communications with a base station 110. The PSSCH 320 can be used to communicate data similar to a physical downlink shared channel (PDSCH) and / or a physical uplink shared channel (PUSCH) used for communications with a base station 110. For example, the PSSCH 315 can carry sidelink control information (SCI) 325, which can indicate various control information used to sidelink communications, such as one or more resources (for example, time and / or frequency resources) where a transport block (TB) 330 that includes data is loaded into the PSSCH 320. The TB 330 can include V2X data, as a message m basic safety (BSM), a traffic information message (TIM), a time and signal phase message (SPAT), a MAP message to transfer geographic road information, a cooperative awareness message (CAM), a distributed environment notification message (DENM), vehicle information message (IVI) and / or similar.
[0048] [0048] In some respects, the sidelink channel 310 may use resource pools. For example, a programming assignment (for example, included in SCI 325) can be transmitted in subchannels using specific resource blocks (RBs) over time. In some respects, data transmissions (for example, on the PSSCH 320) associated with a programming assignment can occupy adjacent RBs in the same subframe as the programming assignment (for example, using frequency division multiplexing). In some respects, a schedule assignment and associated data transmissions are not transmitted on adjacent RBs.
[0049] [0049] In some respects, an UE 305 can operate using transmission mode 4, where feature selection and / or programming is performed by the UE 305 (for example, instead of a base station 110). In some respects, the UE 305 can perform feature selection and / or programming because it feels channel availability for transmissions. For example, the UE 305 can measure a received signal strength indicator (RSSI) parameter (for example, an RSSI-sidelink (S-RSSI) parameter) associated with several sidelink channels, it can measure a received power parameter reference signal (RSRP) (for example, a PSSCH-RSRP parameter) associated with multiple sidelink channels, can measure a reference signal received quality (RSRQ) parameter (for example, a PSSCH-RSRO parameter) associated with several sidelink channels, and / or the like, and you can select a channel for transmitting V2X communications based at least in part on the measurement (s).
[0050] [0050] Additionally, or alternatively, the UE 305 can perform resource selection and / or programming using SCI 325 received on PSCCH 315, which can indicate occupied resources, channel parameters and / or similar. Additionally or alternatively, the UE 305 can perform resource selection and / or programming by determining a busy channel rate (CBR) associated with several sidelink channels, which can be used for rate control (for example, by indicating a maximum number resource blocks that the UE 305 can use for a specific set of subframes).
[0051] [0051] In transmission mode 4, an UE 305 can generate sidelink leases and can transmit leases in SCI 325. A sidelink lease can indicate, for example, one or more parameters (for example,
[0052] [0052] In V2X communication systems, the conditions of the sidelink channel 310 used to transport V2X communications can vary widely and change quickly due to the high mobility of vehicles and UEs associated with the vehicles, large variations in vehicle traffic at different times of the day and in different locations, a wide variety of topographies that vehicles can traverse (for example, dense urban environments, mountainous environments, flat environments, etc.) and / or the like. In addition, V2X communication systems need to be highly reliable due to mission critical safety issues associated, for example, with autonomous vehicles. Some techniques and devices described in the present invention improve the performance of V2X communication systems by dynamically determining parameters for V2X transmissions based at least in part on dynamic factors associated with one or more vehicles, the sidelink channel 310 and / or the like.
[0053] [0053] As indicated above, figure 3 is provided merely as an example. Other examples are possible and may differ from what has been described in relation to figure 3.
[0054] [0054] Figure 4 is a diagram illustrating an example 400 of autonomous selection of resources for V2X transmissions, according to various aspects of the present disclosure.
[0055] [0055] As shown in figure 4, a first UE 405-1 can communicate with a second UE 405-2 (and one or more other UEs 405) through one or more sidelink channels 410. In some respects, UEs 405 may correspond to one or more other UEs described elsewhere in the present invention, such as UE 120, UE 305 and / or similar. In some respects, sidelink channel 410 may correspond to one or more sidelink channels described elsewhere here, such as sidelink channel 310 and / or the like. In some aspects, a UE 405 can be associated with a vehicle 415 (for example, it can be integrated into vehicle 415, can be located inside or in vehicle 415, and / or the like). Vehicle 415 may include an autonomous vehicle, a semi-autonomous vehicle, a non-autonomous vehicle, and / or the like. Although both UEs 405 in figure 4 are shown to be associated with a 415 vehicle, in some respects, one or more of UEs 405 may not be associated with a 415 vehicle. For example, a UE 405 may be associated with infrastructure (for example, traffic infrastructure),
[0056] [0056] As shown by reference number 420, the first UE 405-1 can determine a limit on a number of resource blocks (RBs) allowed to be used for a V2X transmission by the first UE 405-1. In some respects, the first UE 405-l1 can determine the threshold based at least in part on a congestion level of one or more sidelink channels, which can be determined based at least in part on measurement of one or more channels of sidelink (for example, for S-RSSI, PSSCH-RSRP, and / or similar), receiving SCI associated with one or more sidelink channels, and / or similar. For example, the first UE 405-1 can determine a busy channel rate (CBR) for a sidelink channel in association with a time n at which resource selection is triggered for the first UE 405-1 (e.g. CBE ( n-100, n-l1) where n-100 indicates the beginning of a period of time and nl indicates the end of the period of time) and can determine a maximum number of RBs allowed for use by the first UE 405-1 in time n based at least in part on CBR. Additionally, Or alternatively, the first UE 405-1 can determine the limit on the number of RBs by determining a maximum number of RBs allowed for use by the first UE 405-1l in association with time n (for example, CRiimit (N)) and subtract a number of RBs already used or programmed by the first UE 405-1 in association with time n (for example, CR (na, n + b), where na indicates a start of the time period and n + b indicates an end of the period of time).
[0057] [0057] As shown by the reference number
[0058] [0058] As an example, if the first UE 405-1 selects an MCS and a lower index value (for example, allow fewer bits per symbol) for a V2X transmission, then that V2X transmission would require more TBs and corresponding RBs than if the same V2X transmission was to use an MCS with a higher index value (for example, allowing more bits per symbol). However, using an MCS with a lower index value for the V2X transmission can increase the range of the V2X transmission and / or may increase the reliability of the V2X transmission compared to using an MCS with a higher index value. Thus, in some respects, if the limit on the number of RBs is relatively high (for example, greater than or equal to a threshold) then the first UE 405-1 can select an MCS with a lower index value, and if the limit on the number of RBs is relatively low (for example, less than or equal to a threshold), then the first UE 405-1 can select an MCS with a higher index value. In some respects, the first UE 405-1 can select from multiple different MCS index values, and different MCS index values can be associated with different thresholds for the limit on the number of RBs.
[0059] [0059] As another example, if the first UE 405-1 configured a relay configuration to enable retransmissions for a C2X transmission, then that V2X transmission would require more TBs and corresponding RBs than if the first UE 405-1 was to configure the relay configuration to disable retransmissions for the same V2X transmission. however, enabling retransmissions for the V2X transmission may increase the range of the V2X transmission and / or may increase the reliability of the V2X transmission compared to disabling retransmissions for the V2X transmission. therefore, in some respects, if the limit on the number of RBs is relatively high (for example, greater than or equal to a threshold), then the first UE 405-1 can enable retransmissions, and if the limit on the number of RBs is relatively low (for example, less than or equal to a threshold) then the first UE 405-l can disable retransmissions. In some respects, the first UE 405-1 can select from multiple different amounts of retransmissions (for example, one retransmission, two retransmissions, etc.) and different amounts of retransmissions can be associated with different thresholds for the limit on the number of RBs.
[0060] [0060] In some respects, the first UE 405-1 can select one or more parameters to increase or maximize a range for V2X transmission (for example, a distance that can be covered by V2X transmission and corresponding retransmissions) subject to the limit in number of RBs as described in more detail below with respect to figure 5. In this way, the first UE 405-1 can improve reliability, can increase security, can increase the probability of successful receipt of V2X transmission etc. while operating according to the limit on the number of RBs allowed for V2X transmission.
[0061] [0061] In a V2X communication system, sidelink channel conditions can vary widely at different times, in different geographical locations, at different frequencies and / or similar. In this way, the first UE 405-1 can dynamically determine one or more parameters for the V2X transmission based at least in part on conditions that exist when the V2X transmission is programmed. In some respects, the first UE 405-1 may determine one or more transmission parameters based at least in part on a dynamic factor associated with the first UE 405-1 and / or a vehicle associated with the first UE 405-1 (for example , a demand for network traffic associated with one or more applications from the first UE 405-1, a speed from the first UE 405-l, a location from the first UE 405-l1, a topography of the location and / or the like). Additionally or alternatively, the first UE 405-1 can determine one or more transmission parameters based at least in part on a dynamic factor associated with a wireless network over which the V2X transmission is to be transmitted (for example, a level of congestion associated with the wireless network, a carrier frequency on which the V2X transmission is to be transmitted, a priority of the V2X transmission on the wireless network and / or similar). In this way, the first UE 405-1 can improve or optimize transmission of V2X messages under changing conditions.
[0062] [0062] In some respects, the first UE 405-1 may be able to select one or more frequencies to carry the V2X transmission, and may determine one or more parameters based at least in part on the selected frequency or frequencies. For example, a range of the V2X transmission may depend on a frequency used to transmit the V2X transmission (for example, a lower frequency may have a higher range and a higher frequency may have a lower range). In some respects, the first UE 405-l can select a frequency for V2X transmission based on at least part of an estimated range associated with the frequency (for example, by prioritizing a lower frequency over a higher frequency).
[0063] [0063] Additionally, or alternatively, the first UE 405-1 can determine one or more V2X transmission parameters based at least in part on the selected frequency or frequencies. For example, different frequencies can be associated with different CBR values, and thus can be associated with different limits on the number of RBs allowed for use by the first UE 405-1l1. Additionally, or alternatively, different combinations of transmission parameters can result in different performance at different frequencies,
[0064] [0064] In some respects, the first UE 405-1 can determine one or more transmission parameters based at least in part on a demand for network traffic associated with one or more applications from the first UE 405-1. For example, if the first UE 405-1 has a relatively high demand for network traffic (for example, the number of V2X transmissions requested is greater than or equal to a threshold) then the first UE 405-1 can use a smaller number of RBs by V2X transmission. Conversely, if the first UE 405-1 has a relatively low network traffic demand (for example, the number of V2X transmissions requested is less than or equal to a threshold), then the first UE 405-111 can use a larger number of RBs by V2X transmission. the first UE 405-l can configure a smaller number of RBs per V2X transmission using a higher MCS index, by disabling retransmissions or configuring a smaller number of retransmissions, using a smaller number of TBs and / or using a smaller number of RBs by TB. Conversely, the first UE 405-1 can configure a greater number of RBs per V2X transmission using a lower MCS index, by enabling retransmissions or configuring a greater number of retransmissions using a greater number of TBs and / or using a greater number of TB per TB.
[0065] [0065] Additionally or alternatively, the The first UE 405-1 may determine one or more transmission parameters based at least in part on a level of congestion associated with a wireless network with which the V2X transmission is to be transmitted (for example , a level of congestion of the sidelink channel 410 and / or one or more frequencies through which the V2X transmission is to be transmitted). For example, if the wireless network has a relatively high congestion level, then the first UR 405-l can use fewer RBs per V2X transmission. conversely, if the wireless network has a relatively low level of congestion, then the first UE 405-l1l can use a larger number of RBs per V2X transmission. in some respects, the first UE 405-1 can determine the level of congestion based at least in part on a CBR, a resource constraint (for example, a rate control parameter, a power control parameter, a parameter congestion control, etc.), a measured wireless network parameter (for example, a power level) and / or similar.
[0066] [0066] Additionally or alternatively, the The first UE 405-1 can determine one or more parameters based at least in part on a priority of the V2X transmission. for example, the first UE 405-1 can select one or more parameters that result in a higher transmission range for a high priority packet, and can select one or more parameters that result in a lower transmission range for a packet low priority.
[0067] [0067] Additionally or alternatively, the The first UE 405-1 can determine one or more parameters based at least in part on a speed of the first UE 405-1 (for example, a speed at the time of programming the V2X transmission), which can match the speed of a 415 vehicle associated with the first UE
[0068] [0068] Additionally or alternatively, the The first UE 405-1 can determine one or more parameters based at least in part on a topography associated with a location of the first UE 405-1. For example, different combinations of parameters can result in different performance in different topographies, and the first UE 405-1 can select a combination of parameters that provides better performance (for example, increased range) compared to another combination of parameters. In some respects, the first UE 405-1 and / or a vehicle associated with the first UE 405-1 can detect the topography (for example, using LIDAR and / or similar).
[0069] [0069] Additionally or alternatively, the The first UE 405-1 can determine one or more parameters based at least in part on a location of the first UE 405-1. In some respects, the performance of different parameter combinations can be measured over time (for example, by one or more 405 UEs) in different locations, and / or can be indicated for one or more 405 UEs. In some respects, the UE 405 can store information indicating one or more parameters to be used at a location based at least in part on the historical performance of those parameters at that location.
[0070] [0070] Additionally or alternatively, the first UE 405-1 can determine one or more parameters based at least in part on a number of bits of the V2X transmission (for example, which impacts a number of RBs required for the V2X transmission), a time frame for transmission of the V2X transmission (for example, which may impact a determination as to whether to wait for improved channel conditions and to transmit with a larger band, whether to transmit earlier with a shorter band, and / or similar), a period of semi-persistent programming associated with V2X transmission (for example, which can be used to determine RBs for periodic and / or similar V2X transmissions.
[0071] [0071] As shown by reference number 430, the first UE 405-1 can transmit the V2X transmission (for example, to the second UE 405-2 and / or one or more other UEs 405) based at least in part on one or more parameters. For example, the first UE 405-1 can modulate and / or encode the V2X transmission using a selected MCS, can transmit the N2X transmission using a selected number of TBs, can transmit the V2X transmission using a selected number of RBs per TB, can retransmit or avoid relaying the V2X transmission according to a selected relay configuration, you can transmit the V2X transmission on a selected carrier frequency, and / or the like. By considering the dynamic factors when determining the above transmission parameter (s), the first UE 405-1 can improve the performance (for example, a transmission range) of the V2X transmission subject to limitations on the V2X transmission. for example, in some cases, the first UE 405-1 can transmit a V2X transmission using a MCS with a high index, instead of abandoning the V2X transmission.
[0072] [0072] As indicated above, figure 4 is provided merely as an example. Other examples are possible and may differ from what has been described in relation to figure 4.
[0073] [0073] Figure 5 is a diagram illustrating an example 500 of autonomous selection of resources for V2X transmissions, according to various aspects of the present disclosure.
[0074] [0074] As shown in figure 5, a first UE 405-1 can communicate with a second UE 505-2 (and one or more other UEs 505) through one or more sidelink channels 510. In some respects, UEs 505 may correspond to one or more other UEs described elsewhere in the present invention, such as UE 120, UE 305, UE 405 and / or similar. In some aspects, sidelink channel 510 may correspond to one or more sidelink channels described elsewhere in the present invention, such as sidelink channel 310, sidelink channel 410 and / or the like. In some respects, a UE 505 can be associated with a vehicle and / or infrastructure, as described above with respect to figure 4.
[0075] [0075] As shown by reference number 515, the first UE 505-1 can set a limit on the number of RBs allowed to be used for a V2X transmission by the first UE 505-1, as described above with respect to figure 4.
[0076] [0076] As shown by reference number 520, the first UE 505-l can determine multiple combinations of parameters to potentially be used for V2X transmission. Two different combinations can include at least one parameter that is different between the two different combinations, such as a different MCS, a different number of TBs, a different number of RBs per TB, a different relay configuration (e.g. disabled, enabled, enabled with a retransmission, enabled with two retransmissions and / or the like), a different and / or similar carrier frequency.
[0077] [0077] In some respects, the first UR 505-1 may disable V2X transmission retransmission, and may select a lower MCS value (for example, a lower MCS index) that meets the limit on the number of retransmitted RBs disabled, thereby improving or maximizing the range of the V2X transmission subject to the limit on the number of RBs. As an example, the first UE 505-1 can determine a first set of parameters 525 that includes an MCS index of 1 (for example, a lower index with a lower data rate and fewer bits per symbol), 9 TBs, a set of RBs per TB shown as (Xi, ... Xs) and a relay configuration that disables retransmissions. In some respects, the first UE 505-1 can select the lowest MCS value that does not fall below a minimum or default MCS value to be used by the first UE 505-1.
[0078] [0078] In some respects, the first UE 505-1 can enable retransmission of the V2X transmission, and can select a lower MCS value (for example, a lower MCS index) that meets the limit on the number of retransmitted RBs enabled in this way by improving or maximizing the range of the V2X transmission subject to the limit on the number of RBs. As an example, the first UE 505-1 can determine a second set of parameters 530 that includes an MCS index of 4 (for example, a higher index with a higher data rate and more bits per symbol), 3 TBs, a set of RBs per TB shown as (Yi, ... Y3) and a relay setting that enables retransmissions. In some respects, the first UE 505-1 can select the lowest MCS value that does not fall below a minimum or default MCS value to be used by the first UE 505-1.
[0079] [0079] As shown by reference number 535, the first UE 505-1 can select a combination of parameters for the V2X transmission based at least in part on comparing characteristics associated with the multiple combinations. For example, the first UE 505-1l may select a combination of parameters based at least in part on different RB requirements associated with different combinations, based on at least one peak MCS associated with the first UE 505-1, based on at least in part in different bands associated with different, and / or similar combinations.
[0080] [0080] In some respects, the first UE 505-1 can select a combination of parameters based at least in part on different RB requirements associated with different combinations of parameters. For example, The first UE 505-111 can determine a plurality of resource block requirements corresponding to a plurality of parameter combinations (for example, one or more MCS, number of TBs, number of RBs per TB, and configuration of retransmission) for V2X transmission. the first UE 505-l can select a combination of parameters based at least in part on comparing the plurality of resource block requirements to the limit on the number of RBs. For example, if a parameter combination requires a number of RBs that exceed the limit, then the first UE 505-l may not select that parameter combination. Conversely, if a combination of parameters requires a number of RBs that is less than or equal to the limit, then the first UE 505-1 can select that combination of parameters. If multiple parameter combinations meet the resource block limit, then the first UE 505-1 can use one or more other characteristics of the combinations to select a combination. For example, the first UE 505-1 may select a combination that uses the minimum number of RBs, which has the longest range, that includes an MCS value that is less than a peak MCS value associated with the first UE 505-1 , which is more similar to a default combination of parameters associated with the first UE 505-1 and / or similar.
[0081] [0081] In some respects, the first UE 505-1 may select a combination of parameters based at least in part on a peak MCS allowed to be used by the first UE 505-l1l (for example, due to hardware limitations of the first UE 505-l1, due to a peak MCS defined in a 3GPP standard, and / or similar). For example, if a combination of parameters includes an MCS that exceeds a peak MCS allowed to be used by the first UE 505-1, then the first UE 505-1 may not select that combination of parameters. Conversely, if a combination of parameters includes an MCS that does not exceed a peak MCS allowed to be used by the first UE 505-l1, then the first UE 505-l can select that combination of parameters. If multiple combinations of parameters meet the peak MCS limitation, then the first UE 505-1 can use one or more other characteristics of the combinations to select a combination. For example, the first UE 505-1 can select a combination that meets the limit on the number of RBs, that uses the minimum number of RBs, that has the longest range, that is most similar to a default combination of parameters associated with the first EU 505-1 and / or similar.
[0082] [0082] As an example, the first UE 505-1 can determine a first combination of parameters that meets the limit in the number of RBs. However, the first UE 505-1 may determine that a first MCS, included in the first combination of parameters, exceeds a peak MCS allowed to be used by the first UE 505-1. In that case, the first UE 505-1 can determine a second combination of parameters, which includes a second MCS, based at least in part on determining that the first MCS exceeds the peak MCS. The first UE 505-111 can determine that the second MCS does not exceed the peak MCS, and can transmit the V2X transmission using the second MCS based at least in part on the determination that the second MCS does not exceed the peak MCS. In some respects, the first UR 505-1 may select the first MCS due to a condition that results in a lower limit on the number of RBs (for example, poor channel conditions, high network traffic conditions, a large amount of data to be transmitted by the first UE 505-1, and / or similar). In that case, the first UE 505-1 can determine the second combination of parameters after waiting for a threshold period of time (for example, after which the limitation may be less stringent, resulting in a higher limit on the number of RBs). Additionally or alternatively, the first UE 505-1 can determine the second combination of parameters after determining that the condition associated with the limit on the number of RBs has changed (for example, relaxed).
[0083] [0083] In some respects, the first UE 505-1 can select a combination of parameters to increase or maximize a range for V2X transmission subject to the limit on the number of RBs. Additionally or alternatively, the first UE 505-1 can select a parameter combination that has a longer range compared to another parameter combination. For example, the first UE 505-1 can determine a first set of parameters, can determine a second set of parameters, can estimate a first range for V2X transmission using the first set of parameters, can estimate a second range for V2X transmission using the second set of parameters, you can compare the first range and the second range, and you can select the set of parameters associated with the longest range. In some respects, the first set of parameters may include a first MCS (for example, with a higher MCS index) that meets the limit on the number of RBs with the relay configuration configured to enable V2X transmission relay, and the second set of parameters can include a second MCS (for example, with a lower MCS index) that meets the limit on the number of RBs with the retransmission setting configured to disable V2X transmission retransmission.
[0084] [0084] In some respects, the first UE 505-1 may select a combination of parameters based at least in part on one or more default parameters and / or a default combination of parameters (for example, one or more preferred parameters). For example, the first UE 505-1 can select a combination of parameters based at least in part on a default MCS, a default preference for the number of TBs (for example, a larger number of TBs or a smaller number of TBs) , a default preference for the number of TBs per TB, a default relay configuration (for example, enabled by default, disabled by default and / or similar) and / or similar. In some respects, the first UE 505-l can initially test whether the default parameter combination meets the limit on the number of RBs (for example, before testing any other parameter combination). If the default parameter combination meets the limit on the number of RBs, then the first UE 505-l can use the default parameter combination for the V2X transmission. If the default combination of parameters does not meet the limit on the number of RBs, then the first UE 505-l can test another combination of parameters (for example, with a higher MCS index, with disabled retransmissions, with a smaller number of TBs , with a lower number of RBs per TB, and / or similar). In this way, the first UE 505-1 can conserve UE resources (for example, processing power, memory, battery power, and / or the like) compared to always testing multiple parameter combinations for V2X transmission.
[0085] [0085] As shown by reference number 540, the first UE 505-1 can transmit the V2X transmission (for example, to the second UE 505-2 and / or one or more other 505 UEs) using the selected combination of parameters, in a smaller way as described above with respect to figure 4. In this way, the first UE 505-1 can improve reliability, can increase security, can increase the probability of successful receipt of V2X transmission etc., while operating accordingly with the limit on the number of RBs allowed for V2X transmission.
[0086] [0086] As indicated above, figure 5 is provided merely as an example. Other examples are possible and may differ from what has been described in relation to figure 5.
[0087] [0087] Figure 6 is a diagram illustrating an example 600 process performed, for example, by a UE, in accordance with various aspects of the present disclosure. Example process 600 is an example where an UE (for example, UE 120, UE 405, UE 505 and / or similar) performs autonomous selection of resources for V2X transmissions.
[0088] [0088] As shown in Figure 6, in some respects, process 600 may include setting a limit on a number of resource blocks (RBs) allowed to be used for a vehicle-to-all (V2X) transmission by the UE (block 610) . For example, the UE may determine a limit on the number of RBs allowed to be used for a V2X transmission by the UE, as described above with respect to figures 4 and 5. In some respects, the limit is determined based at least in part on a congestion level of a sidelink channel through which the V2X transmission is to be transmitted.
[0089] [0089] As additionally shown in figure 6, in some respects, process 600 may include determining, based at least in part on the limit, one or more parameters for V2X transmission, where one or more parameters include at least one of a modulation and encoding scheme (MCS) for V2X transmission, a number of transport blocks (TBs) for V2X transmission, a number of RBs per TB for V2X transmission, or a relay configuration for V2X transmission (block 620). For example, the UE can determine one or more parameters for the V2X transmission, as described above with respect to figures 4 and 5. In some respects, the UE can determine one or more parameters based at least in part on the limit on the number of RBs. In some respects, one or more parameters may include at least one of an MCS for V2X transmission, a number of TBs for V2X transmission, a number of RBs for TB for V2X transmission, or a relay configuration for V2X transmission .
[0090] [0090] As additionally shown in figure 6, in some aspects the process 600 may include transmitting the V2X transmission based at least in part on one or more parameters (block 630). For example, the UE can transmit the V2X transmission based at least in part on one or more parameters, as described above with respect to figures 4 and 5.
[0091] [0091] Process 600 may include additional aspects, such as any single aspect or any combination of aspects described below.
[0092] [0092] In some respects, one or more parameters are determined for a frequency selected by the UE for V2X transmission. In some respects, one or more parameters are determined based at least in part on one or more dynamic factors associated with the UE or a wireless network through which the V2X transmission is transmitted. In some respects, one or more parameters are determined based at least in part on a demand for network traffic associated with one or more UE applications. In some respects, one or more parameters are determined based at least in part on a level of congestion associated with a wireless network through which the V2X transmission is to be transmitted. In some respects, one or more parameters are determined based at least in part on a carrier frequency on which the V2X transmission is to be transmitted. In some respects, one or more parameters are determined based at least in part on a priority of the V2X transmission.
[0093] [0093] In some respects, one or more parameters are determined based at least in part on an UE speed. In some respects, one or more parameters are determined based at least in part on a topography of a location associated with the UE. In some respects, one or more parameters are determined based at least in part on a location of the UE. In some respects, one or more parameters are selected to maximize a range of the V2X transmission subject to the limit on the number of RBs. In some respects, one or more parameters are determined based at least in part on at least one of: a number of V2X transmission bits, a V2X transmission priority, a V2X transmission transmission deadline, a semi-programming period persistent associated with V2X transmission, or some combination thereof. In some respects, one or more parameters are determined based at least in part on a default MCS associated with the UE.
[0094] [0094] In some respects, the UE may determine a plurality of resource block requirements corresponding to a plurality of MCS combinations, number of TBs, number of RBs per TB, and relay configurations for V2X transmission; and can determine one or more parameters based at least in part on comparing the plurality of resource block requirements with the limit on the number of RBs. In some respects, the UE may determine that a first MCS selected by the UE exceeds a peak MCS allowed to be used by the UE; can determine one or more parameters, including a second MCS, based at least in part on the determination that the first MCS exceeds the peak MCS; can determine that the second MCS does not exceed the peak MCS; and can transmit the V2X transmission using the second MCS based at least in part on the determination that the second MCS does not exceed the peak MCS. In some respects, the second MCS is determined after waiting for a threshold period of time or determining that a channel condition is met.
[0095] [0095] In some respects, the retransmission setting enables retransmission of the V2X transmission and the Oo UE is configured to select a lower MCS value that meets the limit on the number of RBs with retransmission enabled. In some respects, the retransmission setting enables retransmission of the V2X transmission and the UE is configured to select a lower MCS value that meets the limit on the number of RBs with retransmission disabled.
[0096] [0096] In some respects, the UE can determine a first set of parameters that includes a first MCS that meets the limit on the number of RBs with the relay configuration configured to enable retransmission of the V2X transmission, it can determine a second set of parameters that includes a second MCS that meets the limit on the number of RBs with the relay configuration configured to disable V2X transmission relay, can estimate a first range for V2X transmission using the first set of parameters; and can estimate a second range for V2X transmission using the second set of parameters. In some respects, determining one or more parameters for the V2X transmission comprises selecting one of the first set of parameters or second set of parameters based at least in part on the comparison of the first range and the second range.
[0097] [0097] Although figure 6 shows example process blocks, 600, in some respects, Process 600 may include additional blocks, less blocks, different blocks or blocks differently arranged from those shown in figure 6. In addition or alternatively two or more of the process blocks 600 can be executed in parallel.
[0098] [0098] The above disclosure provides illustration and description, but is not intended to be exhaustive or limit the aspects to the precise form revealed. Modifications and variations are possible in light of the above disclosure or can be acquired from the practice of the aspects.
[0099] [0099] As used here, the term component is intended to be widely interpreted as hardware, firmware, or a combination of hardware and software. As used here, a processor is implemented in hardware, firmware, or a combination of hardware and software.
[00100] [00100] Some aspects are described in the present invention with respect to thresholds. As used here, meeting a threshold can refer to a value being greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold and / or similar.
[00101] [00101] It will be evident that systems and / or methods, described here, can be implemented in different forms of hardware, firmware, or a combination of hardware and software. The code of effective specialized control software or hardware used to implement these systems and / or methods is not limiting on the aspects. Accordingly, the operation and behavior of the systems and / or methods have been described here without reference to specific software code - it being understood that software and hardware can be designed to implement the systems and / or methods based on the description of the present invention.
[00102] [00102] Although specific combinations of characteristics are mentioned in the claims and / or revealed in the specification, these combinations are not intended to limit the disclosure of possible aspects. In reality, many of these features can be combined in ways not specifically mentioned in the claims and / or revealed in the specification. Although each dependent claim listed below may directly depend on only one claim, disclosure of possible aspects includes each dependent claim in combination with alternating claim in the set of claims. A phrase referring to “at least one of” a list of items refers to any combination of those items, including unique elements. As an example, “at least one of: a, b or Cc” is intended to cover a, b, c, ab, ac, bc, and abc, as well as any combination with multiples of the same element (for example, aa, aaa, aab , aac, abb, acc, bb, bbb, bbc, cc and cee- or any other order of a, b, and c).
[00103] [00103] No element, act, or instruction used here should be construed as critical or essential unless explicitly described as such. Also, as used here, the articles "one" and "one" are intended to include one or more items, and can be used interchangeably with "one or more." In addition, as used here, the terms "set" and "group" are intended to include one or more items (for example, related items, unrelated items,
a combination of related and unrelated items, etc.) and can be used interchangeably with “one or more.” Where only one item is intended, the term "one" or similar language is used.
Also, as used here, the terms "has", "have", "having" and / or the like are intended to be unlimited terms.
In addition, the phrase "based on" is intended to mean "based, at least in part, on" unless explicitly mentioned otherwise.

权利要求:
Claims (30)
[1]
1. A method of wireless communication performed by a user equipment (UE), comprising: determining a limit on a number of resource blocks (RBs) allowed to be used for a vehicle-for-all (V2X) transmission by the UE in which the threshold is determined based at least in part on a congestion level of a sidelink channel through which the V2X transmission is to be transmitted; determine, based at least in part on the limit, one or more parameters for V2X transmission, where one or more parameters include at least one of a modulation and coding scheme (MCS) for V2X transmission, a number of blocks transport (TBs) for V2X transmission, a number of RBs per TB for V2X transmission, or a relay configuration for V2X transmission; and transmit the V2X transmission based at least in part on one or more parameters.
[2]
A method according to claim 1, wherein one or more parameters are determined based at least in part on one or more dynamic factors associated with the UE or a wireless network through which the V2X transmission is transmitted.
[3]
A method according to claim 1, wherein one or more parameters are determined based at least in part on a demand for network traffic associated with one or more UE applications.
[4]
A method according to claim 1, wherein one or more parameters are determined based at least in part on a level of congestion associated with a wireless network through which the V2X transmission is to be transmitted.
[5]
A method according to claim 1, wherein one or more parameters are determined based at least in part on a carrier frequency on which the V2X transmission is to be transmitted.
[6]
A method according to claim 1, wherein one or more parameters are determined based at least in part on a V2X transmission priority compared to a priority of at least one other V2X transmission.
[7]
A method according to claim 1, wherein one or more parameters are determined based at least in part on a velocity of the UE.
[8]
A method according to claim 1, wherein one or more parameters are determined based at least in part on a topography of a UE location.
[9]
A method according to claim 1, wherein one or more parameters are determined based at least in part on a location of the UE.
[10]
A method according to claim 1, wherein one or more parameters are determined to maximize a range of the V2X transmission subject to the limit on the number of RBs.
[11]
A method according to claim 1, wherein one or more parameters are determined based at least in part on at least one of: a number of bits of the V2X transmission; a deadline for transmission of the V2X transmission;
a semi-persistent programming period associated with V2X transmission; or some combination of them.
[12]
12. The method of claim 1, wherein one or more parameters are determined based at least in part on a default MCS associated with the UE or a default combination of parameters associated with the UE.
[13]
13. The method of claim 1, further comprising: determining a plurality of resource block requirements corresponding to a plurality of combinations of an MCS, a number of TBs, a number of RBs per TB, and a relay configuration for V2X transmission; and determining one or more parameters based at least in part on comparing the plurality of resource block requirements to the limit on the number of RBs.
[14]
14. The method of claim 13, wherein a resource block requirement, of the plurality of resource block requirements, indicates a number of resource blocks required to transmit V2X communication using a specific combination of an MCS, a number of TBs, a number of RBs and a relay configuration.
[15]
15. The method of claim 1, wherein determining one or more parameters comprises: determining that a first MCS, selected by the UE, exceeds a peak MCS allowed to be used by the UE; determining a second MCS based at least in part on determining that the first MCS exceeds the peak MCS; determining that the second MCS does not exceed the peak MCS; and wherein the transmission of the V2X transmission comprises transmitting the V2X transmission using the second MCS based at least in part on the determination that the second MCS does not exceed the peak MCS.
[16]
16. The method of claim 15, wherein the second MCS is determined after waiting for an amount of threshold time or determining that a condition associated with the limit in the number of RBs has changed.
[17]
17. The method of claim 1, wherein one or more parameters include the relay configuration in which the relay configuration allows the retransmission of the V2X transmission; and where the determination of one or more parameters comprises selecting a lower MCS value that meets the limit on the number of RBs with retransmission enabled.
[18]
18. The method of claim 1, wherein one or more parameters include the relay configuration, wherein the relay configuration disables the relay of the V2X transmission; and where the determination of one or more parameters comprises selecting a lower MCS value that meets the limit on the number of RBs with retransmission disabled.
[19]
19. The method of claim 1, wherein one or more parameters include the relay configuration; and where the method further comprises: determining a first set of parameters that includes a first MCS that meets the limit on the number of RBs with the retransmission configuration configured to enable the retransmission of the V2X transmission; determine a second set of parameters that includes a second MCS that meets the limit on the number of RBs with the relay configuration configured to disable V2X transmission relay; estimate a first range for V2X transmission using the first set of parameters; estimate a second range for V2X transmission using the second set of parameters; and wherein determining one or more parameters for the V2X transmission comprises selecting one of the first set of parameters or the second set of parameters based at least in part on the comparison of the first band and the second band.
[20]
20. User equipment (UE) for wireless communication, comprising: memory; and one or more processors operatively coupled to the memory, the memory and one or more processors configured to: determine a limit on a number of resource blocks (RBs) allowed to be used for a vehicle-for-all (V2X) transmission by the UE where the threshold is determined based at least in part on a congestion level of a sidelink channel through which the V2X transmission is to be transmitted; determine, based at least in part on the limit, one or more parameters for the V2X transmission, where one or more parameters include at least one of a modulation and coding scheme (MCS) for the transmission
V2X, a number of transport blocks (TBs) for the V2X transmission, a number of RBs per TB for the V2X transmission, or a relay configuration for the V2X transmission; and transmit the V2X transmission based at least in part on one or more parameters.
[21]
21. UE according to claim 20, wherein one or more parameters are determined based at least in part on one or more of: a dynamic factor associated with the UE or a wireless network through which the V2X transmission is transmitted ; a demand for network traffic associated with one or more UE applications; the level of congestion of the sidelink channel; a carrier frequency on which the V2X transmission is to be transmitted, a priority of the V2X transmission compared to a priority of at least one other V2X transmission; an UE speed; a topography of a UE location, a UE location; a number of bits of the V2X transmission; a priority of V2X transmission; a deadline for transmission of the V2X transmission; a semi-persistent programming period associated with V2X transmission; a default MCS associated with the UE or a default combination of parameters associated with the UE; or some combination of them.
[22]
22. UE according to claim 20, wherein one or more parameters are determined to maximize a range of the V2X transmission subject to the limit on the number of RBs.
[23]
23. UE according to claim 20, wherein the memory and one or more processors are additionally configured to: determine a plurality of resource block requirements corresponding to a plurality of combinations of an MCS, a number of TBs, a number of RBs per TB, and a relay configuration for V2X transmission; and determining one or more parameters based at least in part on comparing the plurality of resource block requirements with the limit on the number of RBs.
[24]
24. UE, according to claim 20, wherein the memory and one or more processors, when determining one or more parameters, are configured to: determine that a first MCS, selected by the UE, exceeds a peak MCS allowed to be used by the EU; determining a second MCS based at least in part on determining that the first MCS exceeds the peak MCS; determining that the second MCS does not exceed the peak MCS; and wherein the memory and one or more processors, when transmitting the V2X transmission, are configured to transmit the V2X transmission using the second MCS based at least in part on the determination that the second MCS does not exceed the peak MCS.
[25]
25. UE, according to claim 24, wherein the second MCS is determined after waiting for an amount of timeout or determining that a condition associated with the limit in the number of RBs has changed.
[26]
26. UE, according to claim 20, wherein one or more parameters include the retransmission configuration, wherein the retransmission configuration enables the retransmission of the V2X transmission; and where memory and one or more processors, when determining one or more parameters, are configured to select a lower MCS value that meets the limit on the number of RBs with retransmission enabled.
[27]
27. UE, according to claim 20, wherein one or more parameters include the retransmission configuration, wherein the retransmission configuration disables the retransmission of the V2X transmission; and where memory and one or more processors, when determining one or more parameters, are configured to select a lower MCS value that meets the limit on the number of RBs with retransmission disabled.
[28]
28. UE, according to claim 20, wherein one or more parameters include the retransmission configuration; and where the memory and one or more processors are additionally configured to: determine a first set of parameters that includes a first MCS that meets the limit on the number of RBs with the relay configuration configured to enable V2X transmission relay; determine a second set of parameters that includes a second MCS that meets the limit on the number of RBs with the relay configuration configured to disable V2X transmission relay; estimate a first range for V2X transmission using the first set of parameters; estimate a second range for V2X transmission using the second set of parameters; and where the memory and one or more processors, when determining one or more parameters for the V2X transmission, are configured to select from the first set of parameters or the second set of parameters based at least in part on the comparison of the first range and the second track.
[29]
29. Device for wireless communication, comprising: means for determining a limit on a number of resource blocks (RBs) allowed to be used for a vehicle-to-all (V2X) transmission by the device on which the limit is determined based on at least partly at a congestion level of a sidelink channel through which the V2X transmission is to be transmitted; means to determine, based at least in part on the limit, one or more parameters for the V2X transmission, wherein one or more parameters include at least one of a modulation and encoding scheme (MCS) for the V2X transmission, a number of transport blocks (TBs) for V2X transmission, a number of RBs per TB for V2X transmission, or a relay configuration for V2X transmission; and means for transmitting the V2X transmission based at least in part on one or more parameters.
[30]
30. Non-transitory, computer-readable media that stores instructions for wireless communication, instructions comprising:
one or more instructions that, when executed by one or more processors from a user device (UE), cause one or more processors to:
determine a limit on a number of resource blocks (RBs) allowed to be used for a vehicle-for-all (V2X) transmission by the UE where the limit is determined based at least in part on a congestion level of a sidelink channel across from which the V2X transmission is to be transmitted;
determine, based at least in part on the limit, one or more parameters for V2X transmission, where one or more parameters include at least one of a modulation and coding scheme (MCS) for V2X transmission, a number of blocks transport (TBs) for V2X transmission, a number of RBs per TB for V2X transmission, or a relay configuration for V2X transmission; and transmit the V2X transmission based at least in part on one or more parameters.

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引用文献:

---

公开号 | 申请日 | 公开日 | 申请人 | 专利标题

---

---

KR100965655B1|2006-03-06|2010-06-23|삼성전자주식회사|Method for transmitting/receiving signal in a communication system|

---

JPWO2010116453A1|2009-03-30|2012-10-11|富士通株式会社|Control method in transmission apparatus, transmission apparatus, reception apparatus, and communication system|

---

WO2010131354A1|2009-05-15|2010-11-18|富士通株式会社|Method for switching modulation system, transmitting station, and receiving station|

---

CN103748907B|2011-07-28|2017-10-31|安华高科技通用Ip公司|In cellular band and exempt to authorize the switching between shared frequency band|

---

WO2013176827A1|2012-05-19|2013-11-28|Motorola Mobility Llc|Method and apparatus for transport block signaling in a wireless communication system|

---

JP6217745B2|2013-03-22|2017-10-25|富士通株式会社|Wireless communication system, wireless communication method, receiving apparatus, and transmitting apparatus|

---

US9374178B2|2013-03-31|2016-06-21|Tejas Networks Limited|Method, system and device for determining transport block size|

---

US9622184B2|2013-09-25|2017-04-11|Apple Inc.|Transport block size and channel condition assessment based power consumption reduction for cellular communication|

---

WO2016072797A2|2014-11-06|2016-05-12|엘지전자 주식회사|Method for transmitting d2d discovery message performed by terminal in wireless communication system, and terminal using said method|

---

US9980193B2|2014-12-12|2018-05-22|Telefonaktiebolaget Lm Ericsson |Transport format for communications|

---

US20160295624A1|2015-04-02|2016-10-06|Samsung Electronics Co., Ltd|Methods and apparatus for resource pool design for vehicular communications|

---

CN107667546B|2015-06-02|2020-11-24|瑞典爱立信有限公司|Adapting QOS of radio bearers with two associated QOS by UE indication|

---

WO2017018703A1|2015-07-24|2017-02-02|엘지전자 주식회사|Method for determining size of transmission block of uplink signal in wireless communication system and apparatus therefor|

---

WO2017039417A1|2015-09-04|2017-03-09|엘지전자 주식회사|Signal transmission method for v2x communication in wireless communication system and device therefor|

---

CN107925906B|2015-09-24|2021-11-16|苹果公司|Congestion control for vehicle-to-anything services|

---

US10531353B2|2015-10-05|2020-01-07|Qualcomm Incorporated|Minimization of resource allocation delay for V2X application|

---

US10383147B2|2015-12-28|2019-08-13|Samsung Electronics Co., Ltd.|Methods and apparatus for resource collision avoidance in vehicle to vehicle communication|

---

US10433283B2|2016-01-26|2019-10-01|Huawei Technologies Co., Ltd.|System and method for bandwidth division and resource block allocation|

---

US10638473B2|2016-05-11|2020-04-28|Idac Holdings, Inc.|Physical layer solutions to support use of mixed numerologies in the same channel|

---

US10333649B1|2016-07-12|2019-06-25|Sprint Spectrum L.P.|Selection of modulation and coding scheme based on packet length|

---

KR20180017893A|2016-08-11|2018-02-21|남정길|Method and apparatus for semi-persistent scheudling for v2x|

---

WO2018131947A1|2017-01-12|2018-07-19|엘지전자 주식회사|V2x communication method executed by v2x terminal in wireless communication system, and terminal using same|

---

US10999843B2|2017-02-10|2021-05-04|Lg Electronics Inc.|Method and apparatus for calculating channel occupancy ratio in wireless communication system|SG11201911604PA|2017-11-03|2020-01-30|Guangdong Oppo Mobile Telecommunications Corp Ltd|Transmission parameter determination method, terminal device and network device|

---

US11032867B2|2018-03-27|2021-06-08|Hyundai Motor Company|Method and apparatus for performing communication using aggregated carriers in V2X communication system|

---

US10977939B2|2019-03-25|2021-04-13|Ford Global Technologies, Llc|Vehicle-to-vehicle communication control|

---

WO2020209623A1|2019-04-09|2020-10-15|엘지전자 주식회사|Method of transmitting sidelink signal in wireless communication system|

---

US10873944B2|2019-05-03|2020-12-22|At&T Intellectual Property I, L.P.|Forward compatible new radio sidelink slot format signalling|

---

US20200366422A1|2019-05-13|2020-11-19|Qualcomm Incorporated|Feedback adaptation for v2x communication|

---

CN111082900A|2019-06-05|2020-04-28|中兴通讯股份有限公司|Information transmission method and device|

---

CN110460973B|2019-07-15|2020-11-17|华为技术有限公司|V2X communication method, device and storage medium|

---

WO2021061106A1|2019-09-24|2021-04-01|Intel Corporation|Methods and apparatus to manage automotive radar coordination|

---

WO2021062715A1|2019-09-30|2021-04-08|Nec Corporation|Method, device and computer readable medium for resource selection in v2x|

---

KR20210045666A|2019-10-17|2021-04-27|삼성전자주식회사|Method and apparatus for transmission and reception of control information and data in wirelss communication system|

---

CN113141238A|2020-01-20|2021-07-20|维沃移动通信有限公司|Data transmission method and device|

---

WO2021184255A1|2020-03-18|2021-09-23|LenovoLimited|Method and apparatus for sidelink communication|

---

US10979930B1|2020-03-18|2021-04-13|Ford Global Technologies, Llc|Vehicle communications control|

---

CN111586634B|2020-05-23|2021-05-14|重庆大学|V2X external field test scene mapping method, test method and test system|

---

CN111937482A|2020-06-24|2020-11-13|北京小米移动软件有限公司|Direct connection communication control method and device and user equipment|

---

WO2022025473A1|2020-07-30|2022-02-03|엘지전자 주식회사|Method and device for determining sidelink transmission resource on basis of rsrp value in nr v2x|

---

CN112713978B|2020-12-04|2021-08-24|成都金诺信高科技有限公司|Time-frequency control method based on Internet of vehicles|

法律状态:
2021-11-23| B350| Update of information on the portal [chapter 15.35 patent gazette]|

优先权:

---

申请号 | 申请日 | 专利标题

---

US201762567045P| true| 2017-10-02|2017-10-02|

---

US62/567,045|2017-10-02|

---

US15/850,539|2017-12-21|

---

US15/850,539|US10791558B2|2017-10-02|2017-12-21|Techniques and apparatuses for autonomous resource selection for vehicle-to-everythingtransmissions|

---

PCT/US2018/043924|WO2019070332A1|2017-10-02|2018-07-26|Techniques and apparatuses for autonomous resource selection for vehicle-to-everythingtransmissions|

---