WO2019153283A1 - 基于直连链路的数据传输方法、装置和终端 - Google Patents

基于直连链路的数据传输方法、装置和终端 Download PDF

Info

Publication number
WO2019153283A1
WO2019153283A1 PCT/CN2018/076071 CN2018076071W WO2019153283A1 WO 2019153283 A1 WO2019153283 A1 WO 2019153283A1 CN 2018076071 W CN2018076071 W CN 2018076071W WO 2019153283 A1 WO2019153283 A1 WO 2019153283A1
Authority
WO
WIPO (PCT)
Prior art keywords
carrier frequency
transmission carrier
transmission
load
configuration information
Prior art date
Application number
PCT/CN2018/076071
Other languages
English (en)
French (fr)
Inventor
李明超
刘航
王和俊
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2018/076071 priority Critical patent/WO2019153283A1/zh
Priority to EP18905839.9A priority patent/EP3735026A4/en
Priority to CN201880088481.2A priority patent/CN111684832B/zh
Publication of WO2019153283A1 publication Critical patent/WO2019153283A1/zh
Priority to US16/988,482 priority patent/US20200374738A1/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/08—Load balancing or load distribution
    • H04W28/09—Management thereof
    • H04W28/0925—Management thereof using policies
    • H04W28/0933—Management thereof using policies based on load-splitting ratios
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0231—Traffic management, e.g. flow control or congestion control based on communication conditions
    • H04W28/0242—Determining whether packet losses are due to overload or to deterioration of radio communication conditions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/0012—Hopping in multicarrier systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/52—Allocation or scheduling criteria for wireless resources based on load
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup

Definitions

  • the present application relates to the field of network communications, and in particular, to a data transmission method, apparatus, and terminal based on a direct link.
  • Direct communication means that the terminal and the terminal can communicate directly through a direct link (also called a side link) between the two terminals, that is, one terminal can pass straight between the terminal and the other terminal.
  • the link transmits data directly to the other terminal without having to relay through other network devices (eg, base stations).
  • Direct communication technology has great advantages in transmission delay, etc., and is especially suitable for vehicle networking communication systems.
  • Cell-based communication systems typically employ a cellular-based V2X (Vehicle to X, where X represents anything) direct communication technology.
  • V2X can generally include V2V (Vehicle to Vehicle) communication, V2I (Vehicle to Infrastructure) communication, V2P (Vehicle to Pedestrian) communication, V2N (Vehicle) To Network, vehicle and network) communication.
  • the transmitting end may be configured with multiple transmission carrier frequencies for transmitting direct link data.
  • the transmitting end has direct link data to be transmitted, any part of the multiple transmission carrier frequencies may be selected.
  • the carrier frequency is transmitted to transmit the direct link data, and the data transmission performance is poor.
  • the present application provides a data transmission method, device and terminal based on the direct link.
  • the technical solution is as follows:
  • the first aspect provides a data transmission method based on a direct link, where the data transmission method includes: acquiring configuration information, where the configuration information includes at least one carrier frequency identifier and a load threshold corresponding to the at least one carrier frequency identifier. Selecting at least one transmission carrier frequency from all of the first transmission carrier frequencies as the second transmission carrier frequency according to the load amount of each first transmission carrier frequency and the load threshold corresponding to the first transmission carrier frequency, Each of the first transmission carrier frequencies respectively corresponds to one of the carrier frequency identifiers; and the direct link data is transmitted on the second transmission carrier frequency.
  • the carrier frequency identifier and the load threshold may be in a many-to-one relationship, that is, at least two carrier frequency identifiers may correspond to the same load threshold; or, the carrier frequency identifier and the load threshold may also be in a one-to-one relationship. That is, each carrier frequency identifier corresponds to a load threshold, and the load thresholds corresponding to different carrier frequency identifiers may be the same or different.
  • the correspondence between the carrier frequency identifier and the load threshold may also be a combination of a many-to-one and one-to-one relationship.
  • the terminal may obtain the configuration information by receiving a system message or RRC (Radio Resource Control) dedicated signaling sent by the base station, or the configuration information may also be pre-configured or protocol-defined.
  • RRC Radio Resource Control
  • Each of the first transmission carrier frequencies corresponds to one carrier frequency identifier in the configuration information, that is, the first transmission carrier frequency is selected from a transmission carrier frequency corresponding to all carrier frequency identifiers in the configuration information.
  • the carrier carrier frequencies corresponding to all carrier frequency identifiers in the configuration information are all first transmission carrier frequencies.
  • the carrier carrier frequency corresponding to the part carrier identifier in the configuration information is the first transmission carrier frequency.
  • the third transmission carrier frequency is a transmission carrier frequency in which the load amount in the first transmission carrier frequency is less than the corresponding load threshold.
  • the data transmission method further includes: acquiring another configuration information, where the other configuration information includes at least one carrier frequency identifier, where the other configuration information may be an upper protocol layer of the terminal access layer. Configured.
  • the terminal determines the first transmission carrier frequency according to the first configuration information and the second configuration information. For example, the first transmission carrier frequency is the transmission carrier frequency indicated by the same carrier frequency identifier included in the two configuration information.
  • one configuration information may be acquired from a base station, and another configuration information is pre-configured or protocol-defined.
  • the present application sets a load threshold for each first transmission carrier frequency, and selects a second transmission carrier frequency for transmitting direct link data according to the load amount of the first transmission carrier frequency and the corresponding load threshold, due to the load amount. Whether the load threshold is exceeded or not depends on the transmission quality of the transmission carrier frequency. Therefore, selecting the second transmission carrier frequency according to the load amount of the first transmission carrier frequency and the corresponding load threshold can effectively improve the data transmission quality.
  • the terminal may preferentially select the first transmission carrier frequency whose load amount is less than the corresponding load threshold to transmit the direct link data. Since the transmission carrier frequency transmission quality is greatly affected after the load amount is greater than the load threshold, priority is given to Selecting a smaller load is beneficial to improve data transmission performance.
  • the terminal selects the transmission carrier frequency for transmitting the direct link from the first transmission carrier frequency according to the same rule (ie, The second transmission carrier frequency can make the transmission carrier frequency used by the plurality of terminals to transmit data converge to several identical transmission carrier frequencies, so that the receiving end (ie, the terminal receiving the data) only needs to be able to simultaneously The data can be received, thereby reducing the requirement for the terminal's receiving capability (for example, the number of carrier frequencies that the terminal can simultaneously support).
  • the selecting at least one of all the first transmission carrier frequencies according to the load amount of each first transmission carrier frequency and the load threshold corresponding to the first transmission carrier frequency Transmitting the carrier frequency as the second transmission carrier frequency includes: selecting at least one third transmission carrier frequency from the third transmission carrier frequency as the at least one third transmission carrier frequency in the first transmission carrier frequency
  • the second transmission carrier frequency is a transmission carrier frequency in which the load amount in the first transmission carrier frequency is less than or equal to the corresponding load threshold.
  • the selecting, by the third transmission carrier frequency, the at least one third transmission carrier frequency as the second transmission carrier frequency comprises: selecting at least one of the following according to a sequence of loading amount from small to large The third transmission carrier frequency is used as the second transmission carrier frequency; or, at least one of the third transmission carrier frequencies is randomly selected as the second transmission carrier frequency; or, according to the order of the load amount, the order of the load is selected in order At least one of the third transmission carrier frequencies is used as the second transmission carrier frequency.
  • the selecting according to the load amount of each first transmission carrier frequency and the load threshold corresponding to the first transmission carrier frequency, selecting at least all of the first transmission carrier frequencies a transmission carrier frequency as the second transmission carrier frequency, including: when the load amount of the first transmission carrier frequency is greater than or equal to the corresponding load threshold, the load is from the first transmission carrier frequency according to the load amount
  • the small to large sequence sequentially selects at least one transmission carrier frequency as the second transmission carrier frequency; or, when the load amount of the first transmission carrier frequency is greater than or equal to the corresponding corresponding load threshold,
  • the first transmission carrier frequency sequentially selects at least one transmission carrier frequency as the second transmission carrier frequency in descending order of the load amount; or, when the load amount of the first transmission carrier frequency is greater than or equal to each corresponding
  • At the load threshold at least one transmission carrier frequency is randomly selected from the first transmission carrier frequency as the second transmission carrier frequency.
  • the configuration information further includes a probability threshold corresponding to the at least one carrier frequency identifier; and the load amount according to each first transmission carrier frequency corresponds to the first transmission carrier frequency
  • the load threshold selecting at least one transmission carrier frequency from all the first transmission carrier frequencies as the second transmission carrier frequency, comprising: selecting at least one fourth transmission carrier frequency from all the fourth transmission carrier frequencies as the a second transmission carrier frequency, where the fourth transmission carrier frequency includes: the first transmission carrier frequency whose load amount is less than or equal to the corresponding load threshold, and the load amount is greater than or equal to the corresponding load threshold and The corresponding random number is less than or equal to the first transmission carrier frequency of the probability threshold; or the fourth transmission carrier frequency includes: the first transmission load with a load quantity less than or equal to the corresponding load threshold And the first transmission carrier frequency, wherein the load quantity is greater than or equal to the corresponding load threshold and the corresponding random number is greater than or equal to the probability threshold.
  • the random number corresponding to the first transmission carrier frequency is generated by the terminal for each first transmission carrier frequency.
  • the probability threshold may be greater than 0 and less than 1, and for each first transmission carrier frequency, the terminal randomly selects a number in the interval [0, 1] as its corresponding random number.
  • the fourth transmission carrier frequency includes at least part of the first transmission carrier frequency of the load threshold greater than or equal to the corresponding load threshold, in addition to the first transmission carrier frequency including the load amount being less than or equal to the corresponding load threshold, thereby increasing
  • the large terminal can be used to transmit the selection range of the transmission resources of the direct link data, so that the probability that the terminal selects the idle resource for data transmission increases, thereby improving the transmission performance.
  • the configuration information further includes a data type identifier corresponding to the at least one carrier frequency identifier; the load amount according to each first transmission carrier frequency and the first transmission load And the load threshold corresponding to the frequency, selecting at least one transmission carrier frequency from all the first transmission carrier frequencies as the second transmission carrier frequency, including: from all the data type identifiers corresponding to the direct link data Selecting at least one transmission carrier frequency as the second transmission carrier frequency in the first transmission carrier frequency.
  • a data type identifier corresponding to the at least one carrier frequency identifier
  • the load amount according to each first transmission carrier frequency and the first transmission load
  • the load threshold corresponding to the frequency
  • the data type identifier may include at least one of the following identifiers: a PP (ProSe Per-Packet Priority) identifier, a QSI (QoS Class Identifier), a service type identifier, Delay identification, reliability identification, and transmission rate identification.
  • the service type identifier includes, but is not limited to, a target address, an ITS-AID (Intelligent Transport Systems-Application Identifier), a PSID (Provider Service Identifier), and an AID (Application Identifier). Identification).
  • each carrier frequency identifier may correspond to one or more data type identifiers, that is, each transmission carrier frequency may be used to transmit data corresponding to one or more data type identifiers.
  • each carrier frequency identifier corresponds to a data type identifier, at least two data types in the data type identifier may also be identified.
  • the determining, by the terminal, the load amount of each first transmission carrier frequency may be in the following manner: the terminal measures and counts the total value of the transmission resources occupied by each of the first transmission carrier frequencies in a predetermined length of time. Or, the ratio between the total value of the occupied transmission resources and the value of all the transmission resources, and the total value and/or the proportional value of the occupied transmission resources as the load amount.
  • the real-time resource of the transmission resource the terminal can determine whether the time-frequency resource is occupied by performing energy detection on the time-frequency resource. For example, when it is detected that the energy value of a certain time-frequency resource exceeds a set threshold, it indicates that the time-frequency resource is occupied.
  • the configuration information may further include transmission resource pool configuration information corresponding to the at least one carrier frequency identifier, where the transmission resource pool configuration information includes location information of a time-frequency resource block; the first transmission carrier frequency
  • the load amount is the load amount of the transmission resource pool corresponding to the corresponding transmission resource pool configuration information.
  • a data transmission apparatus based on a direct link
  • the data transmission apparatus comprising means for implementing the method provided by any one of the possible embodiments of the first aspect, such as an acquisition unit, selection Units and transmission units, etc.
  • a terminal comprising: a memory, a processor coupled to the memory, the memory for storing program code, when the processor is configured to run or execute stored in the memory
  • the program code may perform the method provided by any of the possible implementations of the first aspect.
  • a fourth aspect further provides a computer readable storage medium having stored therein instructions for causing a computer to perform the first aspect or the first aspect described above when the computer readable storage medium is run on a computer The method provided by any of the alternatives.
  • a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of any of the above first aspect or the optional aspect of the first aspect.
  • a communication chip is further provided for use in a communication device, the communication chip comprising: a processor, a memory, and a communication interface; the processor, the memory, and the communication interface are coupled by a bus, and the memory is used for Storing program instructions, the processor, by executing program instructions stored in the memory, enabling a communication device loaded with the communication chip to perform the implementation of any of the first aspect or the first aspect as described above method.
  • FIG. 1A is a schematic diagram of an application scenario according to an embodiment of the present invention.
  • FIG. 1B is another application scenario diagram provided by an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of hardware of a terminal according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of a data transmission method based on a direct link according to an embodiment of the present invention
  • FIG. 4 is a flowchart of another data transmission method based on a direct link according to an embodiment of the present invention.
  • FIG. 5 is a flowchart of still another method for data transmission based on a direct link according to an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of a data transmission apparatus based on a direct link according to an embodiment of the present invention.
  • a and/or B both indicate that there are three cases of A, B, and a combination of A and B.
  • the application scenario of the embodiment of the present invention is described below by taking a V2V direct connection communication scenario as an example.
  • the embodiment of the invention is applicable to a V2V direct connection communication scenario with network coverage, and is applicable to a V2V direct connection communication scenario without network coverage.
  • the base station may be an LTE (Long Term Evolution) communication system or A base station of a subsequent evolution system (for example, 4G, 5G), such as an eNB (evolved Node B), is not limited in the present invention.
  • the vehicle 11 and the vehicle 12 can communicate with the base station 3 based on the communication network provided by the base station 3.
  • the vehicle 11 and the vehicle 12 can also communicate via the direct link A, which can be configured by the base station 3. Carrier frequency is established.
  • Figure 1B shows V2V Direct Connect communication without network coverage.
  • the vehicle 12 and the vehicle 22 can still communicate via the direct link B, which is built using a pre-configured carrier frequency, without being covered by the network.
  • FIG. 1A and FIG. 1B illustrate V2V as an example, that is, the terminal is an in-vehicle terminal, and of course, the terminal may also be a mobile terminal (such as a mobile phone, a tablet computer, etc.), a terminal on a roadside facility, or the like. That is to say, the embodiment of the present invention can also be applied to other V2X direct connection communication scenarios such as V2I, V2P, and V2N. In addition, the embodiment of the present invention can be applied to other direct connection communication scenarios in addition to V2X direct communication.
  • FIG. 2 is a schematic diagram showing the hardware structure of a terminal according to an embodiment of the present invention.
  • the terminal may include one or more core processors 21, a memory 22 including one or more computer readable storage media, and a communication interface 23, etc., and the processor 21 may use a bus and memory 22 and The communication interface 23 is connected.
  • the structure shown in FIG. 2 does not constitute a limitation to the terminal 20, and may include more or less components than those illustrated, or some components may be combined, or different component arrangements. among them:
  • the processor 21 is a control center of the terminal 20, and connects various parts of the entire terminal 20 by various interfaces and lines, and executes the terminal 20 by running or executing a software program stored in the memory 22 and calling data stored in the memory 22.
  • the various functions and processing data enable overall monitoring of the terminal 20.
  • the processor 21 may include one or more processing units, and the processing unit may be a CPU (Central Processing Unit) or an NP (Network Processor).
  • the memory 22 can be used to store various data, such as various configuration parameters as well as computer instructions, which can be executed by the processor 21.
  • Memory 22 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk, flash memory, or other volatile solid state storage devices. Accordingly, memory 22 may also include a memory controller to provide access by processor 21 to memory 22.
  • Communication interface 23 can be a transceiver or a network interface.
  • the transceiver may include a receiver Rx and a transmitter Tx, and the transceiver may also be implemented as a communication chip, and the communication chip may include a receiving module, a transmitting module, a modem module, etc., for modulating and demodulating information, and passing The wireless signal receives or transmits the information.
  • the processor 21 is configured to receive and transmit direct link data through the communication interface 23, and to execute instructions in the memory 22 to implement steps required by the terminal in FIG. 3 to FIG. .
  • FIG. 3 is a flowchart of the data transmission method, which may be performed by the foregoing terminal.
  • the data transmission method may include:
  • Step 31 The terminal acquires the first configuration information.
  • the first configuration information may include at least one carrier frequency identifier and a load threshold corresponding to the at least one carrier frequency identifier.
  • the carrier frequency identifier and the load threshold may be in a many-to-one relationship, that is, at least two carrier frequency identifiers may correspond to the same load threshold; or, the carrier frequency identifier and the load threshold may also be in a one-to-one relationship. That is, each carrier frequency identifier corresponds to a load threshold, and the load thresholds corresponding to different carrier frequency identifiers may be the same or different.
  • the correspondence between the carrier frequency identifier and the load threshold may also be a combination of a many-to-one and one-to-one relationship.
  • the first configuration information in the step 31 may be configured by the network.
  • the terminal may obtain the system by receiving a system message or RRC (Radio Resource Control) dedicated signaling sent by the base station.
  • RRC Radio Resource Control
  • the first configuration information in the step 31 may be pre-configured or protocol-defined. In this case, the terminal may obtain the first configuration information by using pre-configuration information or according to the protocol.
  • Step 32 The terminal compares the load of each first transmission carrier frequency and the corresponding load threshold, and when there is at least one third transmission carrier frequency in all the first transmission carrier frequencies (that is, there is at least one load quantity less than the corresponding load threshold.
  • step 33 is performed; when the load amounts of all the first transmission carrier frequencies are greater than or equal to the respective corresponding load thresholds, step 34 is performed.
  • Each of the first transmission carrier frequencies corresponds to one carrier frequency identifier in the first configuration information, that is, each first transmission carrier frequency is selected from all carrier frequency identifiers in the first configuration information. Transfer carrier frequency.
  • the transmission carrier frequencies corresponding to all carrier frequency identifiers in the first configuration information are all first transmission carrier frequencies.
  • the carrier carrier frequency corresponding to the part of the carrier identifier in the first configuration information is the first transmission carrier frequency.
  • the third transmission carrier frequency is a transmission carrier frequency in which the load amount in the first transmission carrier frequency is less than the corresponding load threshold.
  • the method may further include:
  • the terminal acquires the second configuration information, where the second configuration information includes at least one carrier frequency identifier, and the second configuration information may be configured by an upper layer protocol layer of the terminal access layer, and the data of the application needs to adopt the second configuration information.
  • the carrier frequency transmission indicated by the carrier frequency identifier; the terminal determines the first transmission carrier frequency according to the first configuration information and the second configuration information.
  • the first transmission carrier frequency is a transmission carrier frequency indicated by the same carrier frequency identifier in the carrier frequency identifier in the first configuration information and the carrier frequency identifier in the second configuration information.
  • the carrier frequency identifiers included in the first configuration information are F1, F2, and F3; and the carrier frequency identifiers included in the second configuration information are F1, F2, and F5, and the first transmission carrier frequency includes the carrier frequency identifier F1.
  • the second configuration information may also be pre-configured or protocol-defined.
  • step 32 may include:
  • the load amount may be a channel congestion level value, a channel congestion ratio, a resource load level value, a resource load ratio, or a resource load amount, and is not limited herein.
  • calculating the load of the single first transmission carrier frequency may be in the following manner: the terminal measures and counts the total value of the transmission resources occupied by the first transmission carrier frequency for a specified length of time, or the occupied transmission resources. The ratio between the total value and the value of all transmission resources, the total value of the occupied transmission resources and/or the proportional value as the load.
  • the real-time resource of the transmission resource the terminal can determine whether the time-frequency resource is occupied by performing energy detection on the time-frequency resource. For example, when it is detected that the energy value of a certain time-frequency resource exceeds a set threshold, it indicates that the time-frequency resource is occupied.
  • the first configuration information may further include: at least one transmission resource pool configuration information corresponding to the carrier frequency identifier, where the transmission resource pool configuration information includes location information of the time-frequency resource block. . That is, the first configuration information may further specify a transmission resource corresponding to the transmission carrier frequency indicated by the carrier frequency identifier.
  • the load amount of the first transmission carrier frequency is corresponding to the corresponding transmission resource pool configuration information.
  • the amount of load in the transport resource pool For example, for the transmission carrier frequency with the carrier frequency identifier F1, the corresponding transmission resource pool configuration information includes five time-frequency resource blocks, which are respectively F11, F12, F13, F14, and F15, indicating that the transmission carrier frequency is the first one. For 5 symbols, the load of the transmission carrier frequency F1 is determined according to the occupancy of the 5 time-frequency resource blocks.
  • the first configuration information may further include a transmit power parameter corresponding to the load threshold.
  • the step 32 may further include: comparing, by the terminal, the load quantity of each first transmission carrier frequency and the corresponding load threshold, when at least one third transmission carrier frequency exists in all the first transmission carrier frequencies, and the corresponding transmission power parameter is When the dedicated value is 1, the step 33 is performed; when the load amounts of all the first transmission carrier frequencies are greater than or equal to the respective load thresholds, step 34 is performed.
  • the first configuration information may further include an occupyable resource ratio parameter corresponding to the load threshold.
  • the step 32 may further include: comparing, by the terminal, the load quantity of each first transmission carrier frequency and the corresponding load threshold, when at least one third transmission carrier frequency exists in all the first transmission carrier frequencies, and the corresponding occupied resources When the proportional parameter is the dedicated value 2, step 33 is performed; when the load amounts of all the first transmission carrier frequencies are greater than or equal to the respective corresponding load thresholds, step 34 is performed.
  • the first configuration information may further include a maximum modulation coding mode index parameter and a minimum modulation coding mode index parameter that are applicable according to the load threshold.
  • the step 32 may further include: comparing, by the terminal, the load quantity of each first transmission carrier frequency and the corresponding load threshold, when at least one third transmission carrier frequency exists in all the first transmission carrier frequencies, and the corresponding maximum modulation code
  • step 33 is performed; when the load amounts of all the first transmission carrier frequencies are greater than or equal to the respective corresponding load thresholds, step 34 is performed.
  • the above-mentioned dedicated values 1-4 can be obtained by means of pre-configuration, network configuration or protocol specification.
  • Step 33 The terminal selects at least one third transmission carrier frequency from the third transmission carrier frequency as the second transmission carrier frequency.
  • the method of selecting at least one third transmission carrier frequency from the third transmission carrier frequency may adopt any one of the following: sequentially selecting at least one of the third transmission carrier frequencies as the second according to the order of the load amount from small to large. Transmitting a carrier frequency; or randomly selecting at least one of the third transmission carrier frequencies as the second transmission carrier frequency; or sequentially selecting at least one of the third transmission carrier frequencies in descending order of load amount as The second transmission carrier frequency. It should be noted that, in addition to the foregoing manner, the terminal may select the second transmission carrier frequency from the third transmission carrier frequency according to other rules, which is not limited in this embodiment of the present invention.
  • the number of the second transmission carrier frequency that the terminal needs to select may be obtained by a network configuration, a pre-configuration, or a protocol, and may be one or multiple.
  • K1 third transmission carrier frequencies may be randomly selected as the second transmission carrier frequency, of course.
  • the second transmission carrier frequency may also be selected using any rule other than random selection, where K1 is an integer greater than one. For example, if one second transmission carrier frequency needs to be selected, and the third transmission carrier frequency with the smallest load amount is three (for example, the load amount is 0.5), one transmission is randomly selected from the three third transmission carrier frequencies.
  • the carrier frequency is used as the second transmission carrier frequency.
  • the terminal may select only the N third transmission carrier frequencies as the second transmission carrier frequency;
  • the number N of the third transmission carrier frequency is greater than K1, and the terminal may select K1 third transmission carrier frequencies as the second transmission carrier frequency in the foregoing manner.
  • Step 34 The terminal selects at least one first transmission carrier frequency from all the first transmission carrier frequencies as the second transmission carrier frequency according to a setting rule.
  • the setting rule can be any of the following rules:
  • the terminal may select the second transmission carrier frequency according to other rules, which is not limited by the embodiment of the present invention.
  • the number of the second transmission carrier frequency that the terminal needs to select may be obtained by a network configuration, a pre-configuration, or a protocol, and may be one or multiple.
  • the configuration through the network may be obtained by the terminal receiving the dedicated control signaling and/or the system broadcast information sent by the base station.
  • K2 first transmission carrier frequencies may be randomly selected as the second transmission carrier frequency. It is of course also possible to select a second transmission carrier frequency using any rule other than random selection, where K2 is an integer greater than one. For example, if it is necessary to select one second transmission carrier frequency and the third transmission carrier frequency with the largest load amount is three (for example, the load amount is 0.9), one transmission is randomly selected from the three third transmission carrier frequencies. The carrier frequency is used as the second transmission carrier frequency.
  • the terminal may select only the N first transmission carrier frequencies as the second transmission carrier frequency;
  • the number N of the first transmission carrier frequency is greater than K2, and the terminal may select K2 first transmission carrier frequencies as the second transmission carrier frequency in the foregoing manner.
  • K1 and K2 may or may not be equal.
  • each terminal selects the second transmission load according to the same rule, so that the transmission carrier frequencies of different transmitting ends in the system converge to several identical
  • the transmission carrier frequency is such that the receiving end only needs to be able to receive data simultaneously at these carrier frequencies, thereby reducing the requirement for the receiving capability of the terminal.
  • the steps 32-34 are performed when the terminal is triggered to perform the transmission carrier frequency selection, and the timing at which the terminal is triggered to perform the transmission carrier frequency selection includes, but is not limited to, for example, the terminal has direct link data to be transmitted, or The terminal needs to perform transmission resource selection, or when the terminal needs to perform transmission resource reselection.
  • the steps 32-32 Obtaining, according to the foregoing steps 32-32, the load amount according to each first transmission carrier frequency and the load threshold corresponding to the first transmission carrier frequency, and selecting at least one transmission carrier frequency from the first transmission carrier frequency As the second transmission carrier frequency.
  • Step 35 The terminal sends the direct link data by using the second transmission carrier frequency.
  • the terminal acquires the first configuration information by means of the configuration of the base station, and uses the transmission carrier frequency indicated by all the carrier frequency identifiers in the first configuration information as the first transmission carrier frequency.
  • the carrier frequency identification and load threshold in the first configuration information are as shown in Table 1 below.
  • the terminal when the terminal is triggered to perform transmission carrier selection, it is assumed that the terminal measures the carrier carrier frequency indicated by the carrier frequency identifiers F1, F2, and F3 to be 0.7, 0.4, and 0.3, respectively.
  • the load amount of the transmission carrier frequency indicated by the frequency identifiers F2 and F3 is less than the corresponding load threshold, and the third transmission carrier frequency includes the transmission carrier frequency indicated by the carrier frequency identifiers F2 and F3. If the terminal needs to select a third transmission carrier frequency with the smallest load as the second transmission carrier frequency, the terminal may select the transmission carrier frequency indicated by the carrier frequency identifier F3 as the second transmission carrier frequency transmission direct link data.
  • the terminal when the terminal is triggered to perform transmission carrier selection, it is assumed that the terminal measures the carrier carrier frequencies indicated by the carrier frequency identifiers F1, F2, and F3 to be 0.7, 0.8, and 0.9, respectively.
  • the load of the transmission carrier frequency indicated by all carrier frequency identifiers is greater than the corresponding load threshold. If the terminal needs to select a first transmission carrier frequency with the smallest load as the second transmission carrier frequency, the terminal may select the transmission carrier frequency indicated by the carrier frequency identifier F1 as the second transmission carrier frequency to transmit the direct link data.
  • the third transmission carrier frequency is a transmission carrier frequency in which the load amount in the first transmission carrier frequency is less than the corresponding load threshold, in other embodiments.
  • the third transmission carrier frequency may also be a transmission carrier frequency in which the load amount in the first transmission carrier frequency is less than or equal to the corresponding load threshold. In this case, correspondingly, it is required that the load amount of all the first transmission carrier frequencies is greater than the respective corresponding load thresholds, and step 34 is performed.
  • FIG. 4 shows another data transmission method based on a direct link in the embodiment of the present invention.
  • the first configuration information further includes a data type identifier corresponding to the carrier frequency identifier.
  • the data transmission method may include:
  • Step 41 The terminal acquires the first configuration information.
  • the first configuration information may include at least one carrier frequency identifier, a load threshold corresponding to the at least one carrier frequency identifier, and a data type identifier.
  • the data type identifier corresponding to the carrier frequency identifier is used to indicate a data type that can be transmitted by the transmission carrier frequency indicated by the carrier frequency identifier
  • the load threshold corresponding to the carrier frequency identifier is when the transmission carrier frequency indicated by the carrier frequency identifier is transmitting the data type.
  • the data corresponds to the load threshold.
  • the terminal selects the transmission carrier frequency, the terminal needs to select a transmission carrier frequency according to the data type identifier corresponding to the direct link data to be transmitted, which is the data type identifier corresponding to the data to be transmitted.
  • the transmission carrier frequency is selected according to the corresponding load threshold.
  • the data type identifier may include at least one of the following identifiers: a PP (ProSe Per-Packet Priority) identifier, a QSI (QoS Class Identifier), and a service type identifier. , delay identification, reliability identification, transmission rate identification.
  • the service type identifier includes, but is not limited to, a target address, an ITS-AID (Intelligent Transport Systems-Application Identifier), a PSID (Provider Service Identifier), and an AID (Application Identifier). Identification).
  • each carrier frequency identifier may correspond to one or more data type identifiers, that is, each transmission carrier frequency may be used to transmit data corresponding to one or more data type identifiers.
  • each transmission carrier frequency may be used to transmit data corresponding to one or more data type identifiers.
  • a carrier frequency identifier corresponds to a data type identifier
  • at least two data types in the data type identifier may also be identified.
  • the PPPP logo is taken as an example for comparison with Table 2 below. As shown in Table 2, the PPPP identifier corresponding to the carrier frequency identifier F1 is PPPP1, the PPPP identifier corresponding to the carrier frequency identifier F2 is PPPP1 and PPPP2, and the PPPP identifier corresponding to the carrier frequency identifier F3 is PPPP1 and PPPP4.
  • each carrier frequency identifier corresponds to the same data type identifier
  • the carrier frequency identifier F1 corresponds to one PPPP identifier
  • the carrier frequency identifiers F2 and F3 respectively correspond to two PPPP identifiers.
  • the load threshold used when transmitting the carrier frequency F1 is 0.6, and whether the load threshold used when transmitting the carrier frequency F2 is 0.7 is determined, and whether the carrier frequency F3 is selected for transmission is determined.
  • the load threshold is 0.5.
  • step 31 the corresponding relationship between the carrier frequency identifier and the load threshold and the manner of obtaining the first configuration information may be referred to in step 31, and details are not described herein again.
  • Step 42 The terminal determines the first transmission carrier frequency according to the data type identifier corresponding to the direct link data to be transmitted.
  • the direct link data to be sent by the upper layer application of the terminal and the corresponding data type identifier are transmitted to the terminal, and the terminal can determine the carrier frequency corresponding to the data type identifier according to the correspondence between the data type identifier and the carrier frequency identifier. Identification, thereby determining the transmission carrier frequency corresponding to the direct link data.
  • the data type identifier may be included in a primitive corresponding to the direct link data.
  • the terminal uses the determined transmission carrier frequency corresponding to all the carrier frequency identifiers as the first transmission carrier frequency. In another implementation manner, the terminal uses the transmission carrier frequency corresponding to the part of the carrier frequency identifier of the determined carrier frequency identifier as the first transmission carrier frequency.
  • the method further includes:
  • the terminal acquires the second configuration information, where the second configuration information includes at least one carrier frequency identifier and a data type identifier corresponding to the at least one carrier frequency identifier, where the second configuration information may be configured by an upper protocol layer of the terminal access layer,
  • the data corresponding to the data type identifier of the application needs to adopt the transmission carrier frequency transmission indicated by the carrier frequency identifier corresponding to the data type identifier; the terminal determines the first transmission carrier frequency according to the first configuration information and the second configuration information.
  • the first transmission carrier frequency is the same carrier frequency identifier in the carrier frequency identifier corresponding to the first data type identifier and the carrier frequency identifier corresponding to the first data type identifier in the second configuration information in the first configuration information.
  • the indicated transmission carrier frequency, wherein the first data type identifier may be a data type identifier of the direct link data to be currently transmitted.
  • the carrier frequency identifier of the corresponding data type identifier PPPP1 is F1, F2, and F3; and the carrier frequency identifier of the corresponding data type identifier PPPP1 in the second configuration information is F1, F2, and F5, and the first transmission carrier frequency is The carrier frequency of the F1, F2 is identified as the carrier frequency.
  • Step 43 The terminal compares the load amount of each first transmission carrier frequency and the corresponding load threshold. When there is at least one third transmission carrier frequency in all the first transmission carrier frequencies, step 44 is performed; when all the first transmission carrier frequencies are used. When the load is greater than or equal to the corresponding load threshold, go to step 45.
  • the third transmission carrier frequency is a transmission carrier frequency in which the load amount in the first transmission carrier frequency is less than a corresponding load threshold.
  • step 32 For the implementation of the method for comparing the load of the first transmission carrier frequency with the corresponding load threshold, refer to step 32, and details are not described herein again.
  • Step 44 The terminal selects at least one third transmission carrier frequency from the third transmission carrier frequency as the second transmission carrier frequency.
  • step 44 For the implementation of the step 44, refer to step 33, and a detailed description is omitted here.
  • Step 45 The terminal selects at least one first transmission carrier frequency from all the first transmission carrier frequencies as the second transmission carrier frequency according to a setting rule.
  • step 45 For the implementation of the step 45, refer to step 34, and a detailed description is omitted here.
  • step 42 to step 45 can be used to select at least one transmission carrier frequency as the second transmission carrier frequency from all the first transmission carrier frequencies having the data type identifier corresponding to the direct link data.
  • Step 46 The terminal sends the direct link data by using the second transmission carrier frequency.
  • FIG. 5 shows another data transmission method based on a direct link according to an embodiment of the present invention.
  • the first configuration information further includes a probability threshold corresponding to each available carrier frequency.
  • the method may include:
  • Step 51 The terminal acquires the first configuration information.
  • the first configuration information includes at least one carrier frequency identifier, a load threshold and a probability threshold corresponding to the at least one carrier frequency identifier.
  • the probability threshold is greater than zero and less than one.
  • the carrier frequency identifier and the probability threshold may be in a many-to-one relationship, that is, the probability thresholds corresponding to the at least two carrier frequency identifiers may be equal; or the carrier frequency identifier and the probability threshold may also be a one-to-one relationship, that is, Each carrier frequency identifier corresponds to a probability threshold, and the probability thresholds corresponding to different carrier frequency identifiers may be the same or different.
  • the correspondence between the carrier frequency identifier and the probability threshold may also be a combination of a many-to-one and one-to-one relationship.
  • the first configuration information may further include a data type identifier corresponding to the at least one carrier frequency identifier.
  • a data type identifier corresponding to the at least one carrier frequency identifier.
  • Step 52 The terminal generates a random number for each first transmission carrier frequency.
  • a number can be randomly selected as the corresponding random number in the interval [0, 1] for each first transmission carrier frequency.
  • step 32 For the determination manner of the first transmission carrier frequency, refer to step 32 or step 42, and detailed description is omitted here.
  • Step 53 The terminal selects at least one fourth transmission carrier frequency as the second transmission carrier frequency from the fourth transmission carrier frequency according to the setting rule.
  • the fourth transmission carrier frequency includes the first transmission carrier frequency whose load amount is less than or equal to the corresponding load threshold, and the load quantity is greater than or equal to the corresponding load threshold and the corresponding random number is less than or equal to The first transmission carrier frequency of the probability threshold; or the fourth transmission carrier frequency includes: the first transmission carrier frequency whose load quantity is less than or equal to the corresponding load threshold, and the load quantity is greater than or equal to the corresponding location
  • the load threshold is determined and the corresponding random number is greater than or equal to the first transmission carrier frequency of the probability threshold.
  • the first transmission carrier frequency is selected as the second transmission carrier frequency from the first transmission carrier frequency in step 33, and details are not described herein again.
  • the fourth transmission carrier frequency includes at least part of the first transmission carrier frequency of the load threshold greater than or equal to the corresponding load threshold, in addition to the first transmission carrier frequency including the load amount being less than or equal to the corresponding load threshold, thereby increasing
  • the large terminal can be used to transmit the selection range of the transmission resources of the direct link data, so that the probability that the terminal selects the idle resource for data transmission increases, thereby improving the transmission performance.
  • steps 52 and 53 are performed when the terminal is triggered to transmit carrier frequency selection.
  • Step 54 The terminal sends the direct link data by using the second transmission carrier frequency.
  • the embodiment of the present invention further provides a data transmission device based on a direct link, and the data transmission device can be implemented as a whole or a part of the foregoing terminal through a dedicated hardware circuit or a combination of software and hardware.
  • the data transmission apparatus includes an acquisition unit 601, a selection unit 602, and a transmission unit 603.
  • the obtaining unit 601 is configured to acquire configuration information, where the configuration information includes at least one carrier frequency identifier and a load threshold corresponding to the at least one carrier frequency identifier, and the selecting unit 602 is configured to load according to each first transmission carrier frequency.
  • the load threshold corresponding to the first transmission carrier frequency selecting at least one transmission carrier frequency from the first transmission carrier frequency as a second transmission carrier frequency, and each of the first transmission carrier frequencies respectively corresponding to one The carrier frequency identifier is used; the transmission unit 603 is configured to transmit the direct link data on the second transmission carrier frequency selected by the selection unit 602.
  • the selecting unit 602 is configured to select at least one of the third transmission carrier frequencies when there is at least one third transmission carrier frequency in the first transmission carrier frequency.
  • the third transmission carrier frequency is the second transmission carrier frequency
  • the third transmission carrier frequency is a transmission carrier frequency of the first transmission carrier frequency that is less than or equal to the corresponding load threshold.
  • the selecting unit 602 is configured to sequentially select at least one of the third transmission carrier frequencies as the second transmission carrier frequency according to the order of the load amount; or randomly select at least one of the third carriers. Transmitting a carrier frequency as the second transmission carrier frequency; or sequentially selecting at least one of the third transmission carrier frequencies as the second transmission carrier frequency in descending order of the load amount.
  • the selecting unit 602 is configured to: when the load amount of the first transmission carrier frequency is greater than or equal to the corresponding load threshold, the amount of load from the first transmission carrier frequency is as small as The large order sequentially selects at least one transmission carrier frequency as the second transmission carrier frequency; or, when the load amount of the first transmission carrier frequency is greater than or equal to the corresponding corresponding load threshold, from the first Selecting at least one transmission carrier frequency as the second transmission carrier frequency in descending order of the load amount in the transmission carrier frequency; or, when the loading amount of the first transmission carrier frequency is greater than or equal to the corresponding corresponding location
  • the load threshold is described, at least one transmission carrier frequency is randomly selected from the first transmission carrier frequency as the second transmission carrier frequency.
  • the configuration information further includes a probability threshold corresponding to the at least one carrier frequency identifier
  • the selecting unit 602 is configured to select at least one fourth transmission carrier frequency from all the fourth transmission carrier frequencies.
  • the second transmission carrier frequency wherein the fourth transmission carrier frequency includes: the first transmission carrier frequency whose load amount is less than or equal to the corresponding load threshold, and the load amount is greater than or equal to the corresponding load a threshold and the corresponding random number is less than or equal to the first transmission carrier frequency of the probability threshold; or the fourth transmission carrier frequency includes: the first quantity of the load is less than or equal to the first of the corresponding load thresholds Transmitting a carrier frequency, and the first transmission carrier frequency whose load amount is greater than or equal to the corresponding load threshold and the corresponding random number is greater than or equal to the probability threshold.
  • the configuration information further includes a data type identifier corresponding to the at least one carrier frequency identifier; the selecting unit 602 is configured to: from all data types corresponding to the direct link data Selecting at least one transmission carrier frequency as the second transmission carrier frequency among the identified first transmission carrier frequencies.
  • the configuration information further includes transmission resource pool configuration information corresponding to the at least one carrier frequency identifier, where the transmission resource pool configuration information includes location information of a time-frequency resource block; and a load of the first transmission carrier frequency The load amount of the transmission resource pool corresponding to the corresponding transmission resource pool configuration information.
  • the obtaining unit 601 may be implemented by a processor or may be implemented by a processor in combination with a communication interface.
  • the above selection unit 602 can be implemented by a processor or the processor can execute program instructions in a memory.
  • the transmission unit 603 can be implemented by a communication interface or the communication interface can be implemented in conjunction with a processor.
  • the data transmission device provided by the foregoing embodiment is only illustrated by the division of each functional module in the data transmission. In actual applications, the function distribution may be completed by different functional modules as needed. The internal structure of the device is divided into different functional modules to perform all or part of the functions described above.
  • the data transmission device and the data transmission method embodiment provided by the foregoing embodiments are in the same concept, and the specific implementation process is described in detail in the method embodiment, and details are not described herein again.
  • the above embodiments it may be implemented in whole or in part by software, hardware, or a combination thereof.
  • a software program it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer instructions When the computer instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present invention are generated in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions may be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be from a website site, computer, server or data
  • the center transmits to another website site, computer, server, or data center by wire (eg, coaxial cable, twisted pair, fiber optic) or wireless (eg, infrared, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium, or a semiconductor medium (such as a solid state drive (SSD)) or the like.
  • a person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium.
  • the storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本申请提供了一种基于直连链路的数据传输方法、装置和终端，涉及通信技术领域，该方法包括：获取配置信息，所述配置信息包括至少一个载频标识和所述至少一个载频标识对应的负载门限；根据每个第一传输载频的负载量和所述第一传输载频对应的所述负载门限，从所有所述第一传输载频中选择至少一个传输载频作为第二传输载频，每个所述第一传输载频分别对应一个所述载频标识；在所述第二传输载频上传输直连链路数据。本申请通过为传输载频设置负载门限，从而可以根据传输载频的负载量和对应的负载门限选择用于传输直连链路数据的传输载频，进而提高数据传输质量。

Description

基于直连链路的数据传输方法、装置和终端 技术领域
本申请涉及网络通信领域，特别涉及一种基于直连链路的数据传输方法、装置和终端。
背景技术
直连通信是指，终端和终端之间可以通过两者之间的直连链路(又称侧边链路(Sidelink))直接进行通信，即一个终端可以通过与另一终端之间的直连链路将数据直接发送给该另一终端，而无需通过其他网络设备(例如基站)中转。
直连通信技术在传输时延等方面具有巨大的优势，尤其适用于车联网通信系统。车联网通信系统中通常采用基于蜂窝网的V2X(Vehicle to X，车辆到X，其中，X代表任何事物)直连通信技术。在车联网通信系统中，车辆可以通过V2X通信来及时获取路况信息或接收信息服务。V2X一般可以包括V2V(Vehicle to Vehicle，车辆与车辆之间)通信、V2I(Vehicle to Infrastructure，车辆与路边基础设施)通信、V2P(Vehicle to Pedestrian，车辆与行人之间)通信、V2N(Vehicle to Network，车辆与网络)通信。
在直连通信技术中，发送端可能配置有多个传输载频用于传输直连链路数据，当发送端有直连链路数据需要传输时，可以从多个传输载频中任意选择部分传输载频来发送直连链路数据，数据传输性能较差。
发明内容
为了解决发送端由于任意选择传输载频传输直连链路数据而导致数据传输性能较差的问题，本申请提供了一种基于直连链路的数据传输方法、装置和终端。所述技术方案如下：
第一方面，提供了一种基于直连链路的数据传输方法，该数据传输方法包括：获取配置信息，所述配置信息包括至少一个载频标识和所述至少一个载频标识对应的负载门限；根据每个第一传输载频的负载量和所述第一传输载频对应的所述负载门限，从所有所述第一传输载频中选择至少一个传输载频作为第二传输载频，每个所述第一传输载频分别对应一个所述载频标识；在所述第二传输载频上传输直连链路数据。
可选地，载频标识与负载门限可以是多对一的关系，即，至少两个载频标识可以对应同一个负载门限；或者，载频标识与负载门限也可以是一对一的关系，即每个载频标识均对应有一个负载门限，不同的载频标识对应的负载门限可以相同，也可以不同。当然，载频标识与负载门限的对应关系也可以是多对一和一对一关系的组合。
实现时，终端可以通过接收基站发送的系统消息或RRC(Radio Resource Control，无线资源控制)专用信令来获取该配置信息，或者，该配置信息也可以是预配置或协议规定的。
其中，每个所述第一传输载频对应配置信息中的一个载频标识，也就是说，第一传输载频均选自该配置信息中的所有载频标识所对应的传输载频。在本实施例的一种可能的实 施方式中，该配置信息中的所有载频标识对应的传输载频均为第一传输载频。而在本实施例的另一种可能的实施方式中，该配置信息中的部分载频标识对应的传输载频为第一传输载频。第三传输载频为第一传输载频中负载量小于对应的负载门限的传输载频。
在后一种可能的实施方式中，该数据传输方法还包括：获取另一配置信息，该另一配置信息包括至少一个载频标识，该另一配置信息可以是终端接入层的上层协议层配置的。终端根据第一配置信息和第二配置信息，确定第一传输载频。例如，第一传输载频为两个配置信息中所包含的相同的载频标识所指示的传输载频。
需要说明的是，在实际应用中，也可以一个配置信息是从基站获取的，而另一配置信息是预配置或协议规定的。
本申请通过为每个第一传输载频设置负载门限，根据第一传输载频的负载量和所对应的负载门限来选择用于传输直连链路数据的第二传输载频，由于负载量是否超过负载门限与传输载频的传输质量密切相关，所以根据第一传输载频的负载量和所对应的负载门限来选择第二传输载频可以有效提高数据传输质量。
进一步地，终端可以优先选择负载量小于对应的负载门限的第一传输载频来传输直连链路数据，由于当负载量大于负载门限之后，传输载频传输质量会受到较大影响，所以优先选择负载量小于有利于提高数据传输性能。而当所有的第一传输载频的负载量均大于或等于对应的负载门限时，由于终端都按照相同的规则从第一传输载频中选择用于传输直连链路的传输载频(即第二传输载频)，可以使得多个终端发送数据所用的传输载频收敛到几个相同的传输载频上，从而接收端(即接收数据的终端)只需要能够在这几个载频同时接收数据即可，进而可以降低对终端的接收能力(例如终端能够同时支持的载频的数量减少)的要求。
在本申请的一个实施例中，所述根据每个第一传输载频的负载量和所述第一传输载频对应的所述负载门限，从所有所述第一传输载频中选择至少一个传输载频作为第二传输载频，包括：当所述第一传输载频中存在至少一个第三传输载频时，从所述第三传输载频中选择至少一个第三传输载频作为所述第二传输载频，所述第三传输载频为所述第一传输载频中负载量小于或等于对应的所述负载门限的传输载频。
可选地，所述从所述第三传输载频中选择至少一个第三传输载频作为所述第二传输载频，包括：按照负载量由小到大的顺序，依次选择至少一个所述第三传输载频作为所述第二传输载频；或者，随机选择至少一个所述第三传输载频作为所述第二传输载频；或者，按照负载量由大到小的顺序，依次选择至少一个所述第三传输载频作为所述第二传输载频。
在本申请的另一实施例中，所述根据每个第一传输载频的负载量和所述第一传输载频对应的所述负载门限，从所有所述第一传输载频中选择至少一个传输载频作为第二传输载频，包括：当所述第一传输载频的负载量均大于或等于各自对应的所述负载门限时，从所述第一传输载频中按照负载量由小到大的顺序依次选择至少一个传输载频作为所述第二传输载频；或者，当所述第一传输载频的负载量均大于或等于各自对应的所述负载门限时，从所述第一传输载频中按照负载量由大到小的顺序依次选择至少一个传输载频作为所述第二传输载频；或者，当所述第一传输载频的负载量均大于或等于各自对应的所述负载门限时，从所述第一传输载频中随机选择至少一个传输载频作为所述第二传输载频。
在本申请的再一实施例中，所述配置信息还包括所述至少一个载频标识对应的概率门 限；所述根据每个第一传输载频的负载量和所述第一传输载频对应的所述负载门限，从所有所述第一传输载频中选择至少一个传输载频作为第二传输载频，包括：从所有第四传输载频中选择至少一个第四传输载频作为所述第二传输载频，其中，所述第四传输载频包括：负载量小于或等于对应的所述负载门限的所述第一传输载频，以及负载量大于或等于对应的所述负载门限且所对应的随机数小于或等于所述概率门限的所述第一传输载频；或者，所述第四传输载频包括：负载量小于或等于对应的所述负载门限的所述第一传输载频，以及负载量大于或等于对应的所述负载门限且所对应的随机数大于或等于所述概率门限的所述第一传输载频。
其中，第一传输载频对应的随机数是终端为每个第一传输载频生成的。实现时，概率门限可以大于0且小于1，则针对每个第一传输载频，终端在[0，1]区间内随机选择一个数作为其对应的随机数。
由于第四传输载频除了包括负载量小于或等于对应的负载门限的第一传输载频以外，还包括负载量大于或等于对应的所述负载门限的至少部分第一传输载频，从而可以增大终端可以用来传输直连链路数据的传输资源的选择范围，以使终端选择到空闲资源进行数据传输的概率增大，从而提升了传输性能。
在本申请的又一实施例中，所述配置信息还包括与所述至少一个载频标识对应的数据类型标识；所述根据每个第一传输载频的负载量和所述第一传输载频对应的所述负载门限，从所有所述第一传输载频中选择至少一个传输载频作为第二传输载频，包括：从所有具有与所述直连链路数据对应的数据类型标识的所述第一传输载频中选择至少一个传输载频作为第二传输载频。具体选择方式可以参见前述选择第二传输载频的方式。
其中，该数据类型标识可以包括以下标识中的至少一种：PPPP(ProSe Per-Packet Priority，近距离通信数据分组优先级)标识、QCI(QoS Class Identifier，业务质量分类标识)、业务类型标识、时延标识、可靠性标识、传输速率标识。其中，业务类型标识包括但不限于目标地址、ITS-AID(Intelligent Transport Systems-Application Identifier，智能交通系统应用服务标识)、PSID(Provider Service Identifier，供应者服务标识)、AID(Application Identifier，应用服务标识)。
进一步地，每个载频标识可以对应一种或多种数据类型标识，也就是说，每个传输载频可以用于传输一种或多种数据类型标识对应的数据。当一个载频标识对应一种数据类型标识时，还可以对应该种数据类型标识中的至少两个数据类型标识。
在前述各个实施例中，终端确定每个第一传输载频的负载量可以采用以下方式：终端测量并统计过去每个第一传输载频在一段指定时间长度内被占用的传输资源的总数值，或者被占用的传输资源的总数值与所有传输资源的数值之间的比例值，将被占用的传输资源的总数值和/或比例值作为负载量。其中，传输资源即时频资源，终端可以通过对时频资源进行能量检测来判断时频资源是否被占用。例如，当检测到某个时频资源的能量值超过设定阈值时，表示该时频资源被占用。
可选地，所述配置信息还可以包括与所述至少一个载频标识对应的传输资源池配置信息，所述传输资源池配置信息包括时频资源块的位置信息；所述第一传输载频的负载量为对应的所述传输资源池配置信息所对应的传输资源池的负载量。
第二方面，还提供了一种基于直连链路的数据传输装置，所述数据传输装置包括用于 实现第一方面中任意一种可能的实施方式提供的方法的单元，例如获取单元、选择单元和传输单元等。
第三方面，还提供了一种终端，所述终端包括：存储器、与存储器连接的处理器，所述存储器用于存储程序代码，当所述处理器用于运行或执行存储在所述存储器内的程序代码时，可以执行第一方面中任意一种可能的实施方式提供的方法。
第四方面，还提供了一种计算机可读存储介质，该计算机可读存储介质中存储有指令，当该计算机可读存储介质在计算机上运行时，使得计算机执行上述第一方面或第一方面的任一可选方式所提供的方法。
第五方面，还提供了一种包含指令的计算机程序产品，当该计算机程序产品在计算机上运行时，使得计算机执行上述第一方面或第一方面的任一可选方式所提供的方法。
第六方面，还提供了一种通信芯片，应用在通信设备中，所述通信芯片包括：处理器、存储器以及通信接口；所述处理器、存储器以及通信接口通过总线耦合，所述存储器用于存储程序指令，所述处理器通过执行存储在所述存储器内的程序指令使得装载有所述通信芯片的通信设备能够执行如上述第一方面或第一方面中任意一种可能的实施方式提供的方法。
附图说明
图1A是本发明实施例提供的一种应用场景图；
图1B是本发明实施例提供的另一种应用场景图；
图2是本发明实施例提供的终端的硬件结构示意图；
图3是本发明实施例提供的一种基于直连链路的数据传输方法的流程图；
图4是本发明实施例提供的另一种基于直连链路的数据传输方法的流程图；
图5是本发明实施例提供的又一种基于直连链路的数据传输方法的流程图；
图6是本发明实施例提供的一种基于直连链路的数据传输装置的结构示意图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请实施方式作进一步地详细描述。
在本发明实施例中，“A和/或B”均表示存在A、B以及A和B的组合三种情况。
下面以V2V直连通信场景为例，对本发明实施例的应用场景进行说明。本发明实施例即适用于有网络覆盖的V2V直连通信场景，又适用于无网络覆盖的V2V直连通信场景。
图1A显示了有网络覆盖的V2V直连通信，如图1A所示，车辆11和车辆21均在基站3的覆盖范围内，该基站可以为LTE(Long Term Evolution，长期演进)通信系统或者其后续演进系统(例如4G、5G)的基站，例如eNB(evolved Node B，演进型节点B)，本发明对此不作限制。车辆11和车辆12除了可以基于基站3提供的通信网络与基站3通信以外，车辆11和车辆12之间还可以通过直连链路A进行通信，该直连链路A可以采用基站3配置的载频建立。
图1B显示了无网络覆盖的V2V直连通信。如图1B所示，车辆12和车辆22在没有被 网络覆盖的情况下，仍然可以通过直连链路B进行通信，该直连链路B采用预先配置的载频建立。
需要说明的是，虽然图1A和图1B是以V2V为例来进行说明，即终端为车载终端，当然，终端还可以是移动终端(例如手机、平板电脑等)、路边设施上的终端等，也就是说，本发明实施例还可以适用于V2I、V2P和V2N等其他V2X直连通信场景。此外，除了V2X直连通信以外，本发明实施例还可以适用于其他直连通信场景。
图2示出了本发明实施例提供的一个终端的硬件结构示意图。如图2所示，终端可以包括一个或者一个以上核心的处理器21、包括一个或一个以上计算机可读存储介质的存储器22、以及通信接口23等部件，处理器21可以用总线与存储器22和通信接口23相连。本领域技术人员可以理解，图2中示出的结构并不构成对终端20的限定，可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。其中：
处理器21是终端20的控制中心，利用各种接口和线路连接整个终端20的各个部分，通过运行或执行存储在存储器22内的软件程序，以及调用存储在存储器22内的数据，执行终端20的各种功能和处理数据，从而对终端20进行整体监控。可选地，处理器21可以包括一个或者一个以上处理单元，该处理单元可以是CPU(Central Processing Unit，中央处理单元)或者NP(Network Processor，网络处理器)等。
存储器22可用于存储各种数据，例如各种配置参数以及计算机指令，该计算机指令可以由处理器21执行。存储器22可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘、闪存，也可以是其他易失性固态存储器件。相应地，存储器22还可以包括存储器控制器，以提供处理器21对存储器22的访问。
通信接口23可以为收发器或者网络接口。收发器可以包括接收机Rx和发射机Tx，收发器还可以实现成为一通信芯片，通信芯片中可以包括接收模块、发射模块和调制解调模块等，用于对信息进行调制解调，并通过无线信号接收或发送该信息。
在本申请实施例中，处理器21用于通过通信接口23接收和发送直连链路数据，并且用于执行存储器22中的指令，以实现如图3至图5中终端所需要执行的步骤。
为了提高直连通信的终端之间的数据传输性能，本发明实施例提供了一种基于直连链路的数据传输方法，图3是该数据传输方法的流程图，该方法可以由前述终端执行。如图3所示，该数据传输方法可以包括：
步骤31：终端获取第一配置信息。
其中，该第一配置信息可以包括至少一个载频标识以及所述至少一个载频标识对应的负载门限。
可选地，载频标识与负载门限可以是多对一的关系，即，至少两个载频标识可以对应同一个负载门限；或者，载频标识与负载门限也可以是一对一的关系，即每个载频标识均对应有一个负载门限，不同的载频标识对应的负载门限可以相同，也可以不同。当然，载频标识与负载门限的对应关系也可以是多对一和一对一关系的组合。
在本实施例中，该步骤31中的第一配置信息可以是网络配置的，例如，终端可以通过接收基站发送的系统消息或RRC(Radio Resource Control，无线资源控制)专用信令来获 取该第一配置信息；或者，该步骤31中的第一配置信息也可以是预配置或协议规定的，此时，终端可以通过预配置信息或根据协议获取该第一配置信息。
步骤32：终端比较每个第一传输载频的负载量和对应的负载门限，当所有第一传输载频中存在至少一个第三传输载频(即存在至少一个负载量小于对应的负载门限的第一传输载频)时，执行步骤33；当所有第一传输载频的负载量均大于或等于各自对应的负载门限时，执行步骤34。
其中，每个所述第一传输载频对应第一配置信息中的一个载频标识，也就是说，每个第一传输载频均选自第一配置信息中的所有载频标识所对应的传输载频。在本实施例的一种实施方式中，第一配置信息中的所有载频标识对应的传输载频均为第一传输载频。而在本实施例的另一种实施方式中，第一配置信息中的部分载频标识对应的传输载频为第一传输载频。第三传输载频为第一传输载频中负载量小于对应的负载门限的传输载频。
相应地，在后面这种实施方式中，该方法还可以包括：
终端获取第二配置信息，该第二配置信息包括至少一个载频标识，该第二配置信息可以是终端接入层的上层协议层配置的，表示某应用的数据需要采用第二配置信息中的载频标识所指示的传输载频传输；终端根据第一配置信息和第二配置信息，确定第一传输载频。例如，第一传输载频为第一配置信息中的载频标识和第二配置信息中的载频标识中相同的载频标识所指示的传输载频。例如，第一配置信息中所包含的载频标识为F1，F2，F3；第二配置信息中所包含的载频标识为F1，F2，F5，则第一传输载频包括载频标识F1，F2所指示的传输载频。
需要说明的是，当第一配置信息是从基站获取的时，第二配置信息也可以是预配置或协议规定的。
进一步地，该步骤32可以包括：
计算每个第一传输载频的负载量；
比较计算得到的第一传输载频的负载量与对应的负载门限的大小。
其中，负载量可以是信道拥塞等级值、或信道拥塞比例、或资源负载等级值、或资源负载比例、或资源负载量等，在此不作限定。
示例性地，计算单个第一传输载频的负载量可以采用以下方式：终端测量并统计该第一传输载频在一段指定时间长度内被占用的传输资源的总数值，或者被占用的传输资源的总数值与所有传输资源的数值之间的比例值，将被占用的传输资源的总数值和/或比例值作为负载量。
其中，传输资源即时频资源，终端可以通过对时频资源进行能量检测来判断时频资源是否被占用。例如，当检测到某个时频资源的能量值超过设定阈值时，表示该时频资源被占用。
可选地，本发明实施例的一种实现方式中，第一配置信息还可以包括至少一个载频标识对应的传输资源池配置信息，所述传输资源池配置信息包括时频资源块的位置信息。也就是说，第一配置信息中还可以指定载频标识所指示的传输载频对应的传输资源，在这种情况下，第一传输载频的负载量为对应的传输资源池配置信息所对应的传输资源池的负载量。例如，对于载频标识为F1的传输载频，对应的传输资源池配置信息包括5个时频资源块，分别为F11、F12、F13、F14、F15，表示该传输载频上的第1-5个符号，则根据这5个 时频资源块的占用情况来确定传输载频F1的负载量。
可选择的，第一配置信息还可以包括与负载门限对应的发送功率参数。相应地，步骤32也可以包括：终端比较每个第一传输载频的负载量和对应的负载门限，当所有第一传输载频中存在至少一个第三传输载频且对应的发送功率参数为专用值1时，执行步骤33；当所有第一传输载频的负载量均大于或等于各自对应的负载门限时，执行步骤34。
可选择的，第一配置信息还可以包括与负载门限对应的可占用资源比例参数。相应地，步骤32也可以包括：终端比较每个第一传输载频的负载量和对应的负载门限，当所有第一传输载频中存在至少一个第三传输载频时且对应的可占用资源比例参数为专用值2时，执行步骤33；当所有第一传输载频的负载量均大于或等于各自对应的负载门限时，执行步骤34。
可选择的，第一配置信息还可以包括与负载门限对应的可使用的最大调制编码方式索引参数和最小调制编码方式索引参数。相应地，步骤32也可以包括：终端比较每个第一传输载频的负载量和对应的负载门限，当所有第一传输载频中存在至少一个第三传输载频，且对应的最大调制编码方式索引参数为专用值3和/或最大调制编码方式索引参数为专用值4时，执行步骤33；当所有第一传输载频的负载量均大于或等于各自对应的负载门限时，执行步骤34。
上述专用值1-4可以通过预配置，网络配置或协议规范的方式获取。
步骤33：终端从第三传输载频中选择至少一个第三传输载频作为第二传输载频。
从第三传输载频中选择至少一个第三传输载频的方式可以采用以下任意一种：按照负载量由小到大的顺序，依次选择至少一个所述第三传输载频作为所述第二传输载频；或者，随机选择至少一个所述第三传输载频作为所述第二传输载频；或者，按照负载量由大到小的顺序，依次选择至少一个所述第三传输载频作为所述第二传输载频。需要说明的是，除了上述方式以外，终端还可以按照其他规则从第三传输载频中选择第二传输载频，本发明实施例对此不作限制。
进一步地，终端需要选择出的第二传输载频的数量可以通过网络配置、预配置或协议规定的方式获取，可以为一个，也可以为多个。
当需要选择出K1个第二传输载频，而负载量最小(或最大)的第三传输载频的数量超过K1时，可以随机选择K1个第三传输载频作为第二传输载频，当然也可以采用随机选择以外的任意规则来选择第二传输载频，其中，K1为大于1的整数。例如，若需要选择1个第二传输载频，而负载量最小的第三传输载频有3个(例如负载量均为0.5)，则从这三个第三传输载频中随机选择一个传输载频作为第二传输载频。
此外，假设终端需要选择出的第二传输载频的数量为K1，若第三传输载频的数量N小于K1，则终端可以仅选择N个第三传输载频作为第二传输载频；若第三传输载频的数量N大于K1，则终端可以按照前述方式选择K1个第三传输载频作为第二传输载频。
步骤34：终端按照设定规则从所有第一传输载频中选择至少一个第一传输载频作为第二传输载频。
示例性地，设定规则可以为以下规则中的任意一种：
按照负载量由小到大的顺序，依次选择至少一个第一传输载频作为第二传输载频；或者，随机选择至少一个第一传输载频作为所述第二传输载频；或者，按照负载量由大到小 的顺序，依次选择至少一个第一传输载频作为所述第二传输载频。需要说明的是，除了上述方式以外，终端还可以按照其他规则来选择第二传输载频，本发明实施例对此不作限制。
进一步地，终端需要选择出的第二传输载频的数量可以通过网络配置、预配置或协议规定的方式获取，可以为一个，也可以为多个。其中，通过网络配置可以是终端通过接收基站发送的专用控制信令和/或系统广播信息的方式获取。
当需要选择出K2个第二传输载频，而负载量最小(或最大)的第一传输载频的数量超过K2个时，可以随机选择K2个第一传输载频作为第二传输载频，当然也可以采用随机选择以外的任意规则来选择第二传输载频，其中，K2为大于1的整数。例如，若需要选择1个第二传输载频，而负载量最大的第三传输载频有3个(例如负载量均为0.9)，则从这3个第三传输载频中随机选择一个传输载频作为第二传输载频。
此外，假设终端需要选择出的第二传输载频的数量为K2，若第一传输载频的数量N小于K2，则终端可以仅选择N个第一传输载频作为第二传输载频；若第一传输载频的数量N大于K2，则终端可以按照前述方式选择K2个第一传输载频作为第二传输载频。
实现时，K1与K2可以相等也可以不相等。
当所有第一传输载频的负载量均大于或等于各自对应的负载门限时，各个终端按照相同的规则选择第二传输负载，从而使得系统中不同发送端的传输载频尽可能收敛到几个相同的传输载频上，从而接收端只需要能够在这几个载频同时接收数据即可，进而可以降低对终端的接收能力的要求。
需要说明的是，步骤32-34在终端被触发执行传输载频选择时执行，终端被触发执行传输载频选择的时机包括但不限于，例如，终端有直连链路数据需要发送，或者，终端需要进行传输资源选择，或者终端需要进行传输资源重选择时等。通过前述步骤32-32即可实现根据每个第一传输载频的负载量和所述第一传输载频对应的所述负载门限，从所述第一传输载频中选择至少一个传输载频作为第二传输载频。
步骤35：终端采用第二传输载频发送直连链路数据。
下面结合具体的例子对图3所示的方法进行说明。终端通过基站配置的方式获取了第一配置信息，且以第一配置信息中所有载频标识所指示的传输载频作为第一传输载频。第一配置信息中的载频标识和负载门限如下表一所示。
表一
载频标识 负载门限
F1 0.6
F2 0.7
F3 0.5
在一种情况下，当终端被触发进行传输载频选择时，假设终端测得载频标识F1、F2、F3所指示的传输载频的负载量分别为0.7、0.4和0.3，此时，载频标识F2和F3所指示的传输载频的负载量小于对应的负载门限，则第三传输载频包括载频标识F2和F3所指示的传输载频。若终端需要选择一个负载最小的第三传输载频作为第二传输载频，则终端可以选择载频标识F3所指示的传输载频作为第二传输载频传输直连链路数据。
在另一种情况下，当终端被触发进行传输载频选择时，假设终端测得载频标识F1、F2、 F3所指示的传输载频的负载量分别为0.7、0.8和0.9，此时，所有载频标识所指示的传输载频的负载量均大于对应的负载门限。若终端需要选择一个负载最小的第一传输载频作为第二传输载频，则终端可以选择载频标识F1所指示的传输载频作为第二传输载频传输直连链路数据。
需要说明的是，作为一种可选的实施方式，在本实施例中，第三传输载频为第一传输载频中负载量小于对应的所述负载门限的传输载频，在其他实施例中，第三传输载频也可以为第一传输载频中负载量小于或等于对应的所述负载门限的传输载频。在这种情况下，相应地，需要在所有第一传输载频的负载量均大于各自对应的负载门限，执行步骤34。
图4显示了本发明实施例的另一基于直连链路的数据传输方法。与图3所示实施例的区别在于，在图4所示实施例中，第一配置信息还包括与载频标识对应的数据类型标识，如图4所示，该数据传输方法可以包括：
步骤41：终端获取第一配置信息。
其中，该第一配置信息可以包括至少一个载频标识、该至少一个载频标识对应的负载门限和数据类型标识。载频标识对应的数据类型标识用于表示该载频标识所指示的传输载频能够传输的数据类型，载频标识对应的负载门限为当载频标识所指示的传输载频在传输该数据类型的数据时对应的负载门限。终端在后续选择传输载频时，需要根据待传输的直连链路数据对应的数据类型标识为待传输的直连链路数据选择传输载频，具体为从具备待传输数据对应的数据类型标识的传输载频中按照对应的负载门限来选择传输载频。
实现时，该数据类型标识可以包括以下标识中的至少一种：PPPP(ProSe Per-Packet Priority，近距离通信数据分组优先级)标识、QCI(QoS Class Identifier，业务质量分类标识)、业务类型标识、时延标识、可靠性标识、传输速率标识。其中，业务类型标识包括但不限于目标地址、ITS-AID(Intelligent Transport Systems-Application Identifier，智能交通系统应用服务标识)、PSID(Provider Service Identifier，供应者服务标识)、AID(Application Identifier，应用服务标识)。
进一步地，每个载频标识可以对应一种或多种数据类型标识，也就是说，每个传输载频可以用于传输一种或多种数据类型标识对应的数据。当一个载频标识对应一种数据类型标识时，还可以对应该种数据类型标识中的至少两个数据类型标识。下面结合表二以PPPP标识为例进行说明。如表二所示，载频标识F1对应的PPPP标识为PPPP1，载频标识F2对应的PPPP标识为PPPP1和PPPP2，载频标识F3对应的PPPP标识为PPPP1和PPPP4。即在表二中，每个载频标识对应同一种数据类型标识，而载频标识F1对应一个PPPP标识，载频标识F2和F3分别对应两个PPPP标识。
表二
载频标识 负载门限 PPPP标识
F1 0.6 PPPP 1
F2 0.7 PPPP 1，PPPP 2
F3 0.5 PPPP 1，PPPP 4
当待传输数据的PPPP标识为PPPP1时，判断是否选择传输载频F1时所用的负载门限 为0.6，判断是否选择传输载频F2时所用的负载门限为0.7，判断是否选择传输载频F3时所用的负载门限为0.5。
此外，载频标识与负载门限的对应关系以及第一配置信息的获取方式可以参见步骤31，在此不再赘述。
步骤42：终端根据待传输的直连链路数据对应的数据类型标识确定第一传输载频。
实现时，终端的上层应用将要发送的直连链路数据以及对应的数据类型标识都传递给终端，终端根据数据类型标识与载频标识的对应关系，即可确定出数据类型标识对应的载频标识，从而确定出直连链路数据对应的传输载频。其中，数据类型标识可以包含在对应直连链路数据的原语当中。
在一种实施方式中，终端将确定出的所有载频标识所对应的传输载频均作为第一传输载频。在另一种实施方式中，终端将确定出的载频标识中的部分载频标识所对应的传输载频作为第一传输载频。
相应地，在后面这种实施方式中，该方法还包括：
终端获取第二配置信息，该第二配置信息包括至少一个载频标识以及该至少一个载频标识对应的数据类型标识，该第二配置信息可以是终端接入层的上层协议层配置的，表示某应用的与该数据类型标识对应的数据需要采用该数据类型标识对应的载频标识所指示的传输载频传输；终端根据第一配置信息和第二配置信息，确定第一传输载频。例如，第一传输载频为第一配置信息中的与第一数据类型标识所对应的载频标识和第二配置信息中与第一数据类型标识所对应的载频标识中相同的载频标识所指示的传输载频，其中，第一数据类型标识可以是当前待传输的直连链路数据的数据类型标识。
例如，第一配置信息中对应数据类型标识PPPP1的载频标识为F1，F2，F3；第二配置信息中对应数据类型标识PPPP1的载频标识为F1，F2，F5，则第一传输载频为载频标识为F1，F2的传输载频。
步骤43：终端比较每个第一传输载频的负载量和对应的负载门限，当所有第一传输载频中存在至少一个第三传输载频时，执行步骤44；当所有第一传输载频的负载量均大于或等于各自对应的负载门限时，执行步骤45。
其中，第三传输载频为第一传输载频中负载量小于对应的负载门限的传输载频。
进一步地，终端比较第一传输载频的负载量和对应的负载门限的实施方式可以参见步骤32，在此不再赘述。
步骤44：终端从第三传输载频中选择至少一个第三传输载频作为第二传输载频。
其中，该步骤44的实施方式可以参见步骤33，在此省略详细描述。
步骤45：终端按照设定规则从所有第一传输载频中选择至少一个第一传输载频作为第二传输载频。
其中，该步骤45的实施方式可以参见步骤34，在此省略详细描述。
通过前述步骤42至步骤45即可实现从所有具有与所述直连链路数据对应的数据类型标识的所述第一传输载频中选择至少一个传输载频作为第二传输载频。
步骤46：终端采用第二传输载频发送直连链路数据。
图5显示了本发明实施例提供的另一种基于直连链路的数据传输方法。与图3所示实 施例的区别在于，在图5所示实施例中，第一配置信息还包括每个可用载频对应的概率门限，如图5所示，该方法可以包括：
步骤51：终端获取第一配置信息。
其中，第一配置信息包括至少一个载频标识、该至少一个载频标识对应的负载门限和概率门限。在本实施例中，概率门限大于0且小于1。
进一步地，载频标识和负载门限的对应关系可以参见前述步骤31，在此省略详细描述。类似的，载频标识与概率门限可以是多对一的关系，即，至少两个载频标识对应的概率门限可以相等；或者，载频标识与概率门限也可以是一对一的关系，即每个载频标识均对应有一个概率门限，不同的载频标识对应的概率门限可以相同，也可以不同。当然，载频标识与概率门限的对应关系也可以是多对一和一对一关系的组合。
可选地，第一配置信息还可以包括该至少一个载频标识对应的数据类型标识。载频标识与数据类型标识的对应关系以及数据类型标识的相关描述可以参见前述步骤41，在此省略详细描述。
步骤52：终端为每个第一传输载频生成一个随机数。
在该步骤52中，可以针对每个第一传输载频，在[0，1]区间内随机选择一个数作为其对应的随机数。
其中，第一传输载频的确定方式可以参见步骤32或步骤42，在此省略详细描述。
步骤53：终端从第四传输载频中，按照设定规则选择至少一个第四传输载频作为第二传输载频。
其中，第四传输载频包括负载量小于或等于对应的所述负载门限的所述第一传输载频，以及负载量大于或等于对应的所述负载门限且所对应的随机数小于或等于所述概率门限的所述第一传输载频；或者，第四传输载频包括：负载量小于或等于对应的所述负载门限的所述第一传输载频，以及负载量大于或等于对应的所述负载门限且所对应的随机数大于或等于所述概率门限的所述第一传输载频。
设定规则可以参见步骤33中从第一传输载频中选择第一传输载频作为第二传输载频的规则，在此不再赘述。
由于第四传输载频除了包括负载量小于或等于对应的负载门限的第一传输载频以外，还包括负载量大于或等于对应的所述负载门限的至少部分第一传输载频，从而可以增大终端可以用来传输直连链路数据的传输资源的选择范围，以使终端选择到空闲资源进行数据传输的概率增大，从而提升了传输性能。
需要说明的是，该步骤52和53在终端被触发传输载频选择时执行。
步骤54：终端采用第二传输载频发送直连链路数据。
本发明实施例还提供了一种基于直连链路的数据传输装置，该数据传输装置可以通过专用硬件电路，或者，软硬件的结合实现成为前述终端的全部或一部分。参见图6，该数据传输装置包括：获取单元601、选择单元602和传输单元603。其中，获取单元601用于获取配置信息，所述配置信息包括至少一个载频标识和所述至少一个载频标识对应的负载门限；选择单元602用于根据每个第一传输载频的负载量和所述第一传输载频对应的所述负载门限，从所述第一传输载频中选择至少一个传输载频作为第二传输载频，每个所述第一 传输载频分别对应一个所述载频标识；传输单元603用于在所述选择单元602选择出的所述第二传输载频上传输直连链路数据。
可选地，在一种实施方式中，所述选择单元602用于当所述第一传输载频中存在至少一个第三传输载频时，从所述第三传输载频中选择至少一个第三传输载频作为所述第二传输载频，所述第三传输载频为所述第一传输载频中负载量小于或等于对应的所述负载门限的传输载频。
进一步地，该选择单元602用于，按照负载量由小到大的顺序，依次选择至少一个所述第三传输载频作为所述第二传输载频；或者，随机选择至少一个所述第三传输载频作为所述第二传输载频；或者，按照负载量由大到小的顺序，依次选择至少一个所述第三传输载频作为所述第二传输载频。
可选地，所述选择单元602用于当所述第一传输载频的负载量均大于或等于各自对应的所述负载门限时，从所述第一传输载频中按照负载量由小到大的顺序依次选择至少一个传输载频作为所述第二传输载频；或者，当所述第一传输载频的负载量均大于或等于各自对应的所述负载门限时，从所述第一传输载频中按照负载量由大到小的顺序依次选择至少一个传输载频作为所述第二传输载频；或者，当所述第一传输载频的负载量均大于或等于各自对应的所述负载门限时，从所述第一传输载频中随机选择至少一个传输载频作为所述第二传输载频。
在另一实施方式中，所述配置信息还包括所述至少一个载频标识对应的概率门限；所述选择单元602用于，从所有第四传输载频中选择至少一个第四传输载频作为所述第二传输载频，其中，所述第四传输载频包括：负载量小于或等于对应的所述负载门限的所述第一传输载频，以及负载量大于或等于对应的所述负载门限且所对应的随机数小于或等于所述概率门限的所述第一传输载频；或者，所述第四传输载频包括：负载量小于或等于对应的所述负载门限的所述第一传输载频，以及负载量大于或等于对应的所述负载门限且所对应的随机数大于或等于所述概率门限的所述第一传输载频。
在又一实施方式中，所述配置信息还包括与所述至少一个载频标识对应的数据类型标识；所述选择单元602用于，从所有具有与所述直连链路数据对应的数据类型标识的所述第一传输载频中选择至少一个传输载频作为第二传输载频。
可选地，所述配置信息还包括与所述至少一个载频标识对应的传输资源池配置信息，所述传输资源池配置信息包括时频资源块的位置信息；第一传输载频的负载量为对应的所述传输资源池配置信息所对应的传输资源池的负载量。
相关细节可结合参考图3-图5的方法实施例。
需要说明的是，获取单元601可以由处理器实现或者，处理器结合通信接口实现。上述选择单元602可以由处理器实现或者，处理器执行存储器中的程序指令来实现。传输单元603可以由通信接口实现或者，通信接口结合处理器来实现。
需要说明的是：上述实施例提供的数据传输装置在数据传输时，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将设备的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。另外，上述实施例提供的数据传输装置与数据传输方法实施例属于同一构思，其具体实现 过程详见方法实施例，这里不再赘述。
在上述实施例中，可以全部或部分地通过软件、硬件或者其组合来实现。当使用软件程序实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机指令时，全部或部分地产生按照本发明实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以是存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、双绞线、光纤)或无线(例如红外、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质、或者半导体介质(例如固态硬盘(SSD))等。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成，也可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可读存储介质中，上述提到的存储介质可以是只读存储器，磁盘或光盘等。
以上所述仅为本申请的可选实施例，并不用以限制本申请，凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (16)

  1. 一种基于直连链路的数据传输方法，其特征在于，所述数据传输方法包括：
    获取配置信息，所述配置信息包括至少一个载频标识和所述至少一个载频标识对应的负载门限；
    根据每个第一传输载频的负载量和所述第一传输载频对应的所述负载门限，从所有所述第一传输载频中选择至少一个传输载频作为第二传输载频，每个所述第一传输载频分别对应一个所述载频标识；
    在所述第二传输载频上传输直连链路数据。
  2. 根据权利要求1所述的数据传输方法，其特征在于，所述根据每个第一传输载频的负载量和所述第一传输载频对应的所述负载门限，从所有所述第一传输载频中选择至少一个传输载频作为第二传输载频，包括：
    当所有所述第一传输载频中存在至少一个第三传输载频时，从所述第三传输载频中选择至少一个所述第三传输载频作为所述第二传输载频，所述第三传输载频为所述第一传输载频中负载量小于或等于对应的所述负载门限的传输载频。
  3. 根据权利要求2所述的数据传输方法，其特征在于，所述从所述第三传输载频中选择至少一个所述第三传输载频作为所述第二传输载频，包括：
    按照负载量由小到大的顺序，依次选择至少一个所述第三传输载频作为所述第二传输载频；或者，
    随机选择至少一个所述第三传输载频作为所述第二传输载频；或者，
    按照负载量由大到小的顺序，依次选择至少一个所述第三传输载频作为所述第二传输载频。
  4. 根据权利要求1-3任一项所述的数据传输方法，其特征在于，所述根据每个第一传输载频的负载量和所述第一传输载频对应的所述负载门限，从所有所述第一传输载频中选择至少一个传输载频作为第二传输载频，包括：
    当所有所述第一传输载频的负载量均大于或等于各自对应的所述负载门限时，从所有所述第一传输载频中按照负载量由小到大的顺序依次选择至少一个传输载频作为所述第二传输载频；或者，
    当所有所述第一传输载频的负载量均大于或等于各自对应的所述负载门限时，从所有所述第一传输载频中按照负载量由大到小的顺序依次选择至少一个传输载频作为所述第二传输载频；或者，
    当所有所述第一传输载频的负载量均大于或等于各自对应的所述负载门限时，从所有所述第一传输载频中随机选择至少一个传输载频作为所述第二传输载频。
  5. 根据权利要求1所述的数据传输方法，其特征在于，所述配置信息还包括所述至少一个载频标识对应的概率门限；
    所述根据每个第一传输载频的负载量和所述第一传输载频对应的所述负载门限，从所有所述第一传输载频中选择至少一个传输载频作为第二传输载频，包括：
    从所有第四传输载频中选择至少一个所述第四传输载频作为所述第二传输载频，其中，所述第四传输载频包括：负载量小于或等于对应的所述负载门限的所述第一传输载频，以及负载量大于或等于对应的所述负载门限且所对应的随机数小于或等于所述概率门限的所述第 一传输载频；或者，所述第四传输载频包括：负载量小于或等于对应的所述负载门限的所述第一传输载频，以及负载量大于或等于对应的所述负载门限且所对应的随机数大于或等于所述概率门限的所述第一传输载频。
  6. 根据权利要求1-5任一项所述的数据传输方法，其特征在于，所述配置信息还包括与所述至少一个载频标识对应的数据类型标识；
    所述根据每个第一传输载频的负载量和所述第一传输载频对应的所述负载门限，从所有所述第一传输载频中选择至少一个传输载频作为第二传输载频，包括：
    从所有具有与所述直连链路数据对应的数据类型标识的所述第一传输载频中选择至少一个传输载频作为第二传输载频。
  7. 根据权利要求1-6任一项所述的数据传输方法，其特征在于，所述配置信息还包括与所述至少一个载频标识对应的传输资源池配置信息，所述传输资源池配置信息包括时频资源块的位置信息；所述第一传输载频的负载量为对应的所述传输资源池配置信息所对应的传输资源池的负载量。
  8. 一种基于直连链路的数据传输装置，其特征在于，所述数据传输装置包括：
    获取单元，用于获取配置信息，所述配置信息包括至少一个载频标识和所述至少一个载频标识对应的负载门限；
    选择单元，用于根据每个第一传输载频的负载量和所述第一传输载频对应的所述负载门限，从所有所述第一传输载频中选择至少一个传输载频作为第二传输载频，每个所述第一传输载频分别对应一个所述载频标识；
    传输单元，用于在所述选择单元选择出的所述第二传输载频上传输直连链路数据。
  9. 根据权利要求8所述的数据传输装置，其特征在于，所述选择单元用于，当所述第一传输载频中存在至少一个第三传输载频时，从所述第三传输载频中选择至少一个第三传输载频作为所述第二传输载频，所述第三传输载频为所述第一传输载频中负载量小于或等于对应的所述负载门限的传输载频。
  10. 根据权利要求9所述的数据传输装置，其特征在于，所述选择单元用于，按照负载量由小到大的顺序，依次选择至少一个所述第三传输载频作为所述第二传输载频；或者，
    随机选择至少一个所述第三传输载频作为所述第二传输载频；或者，
    按照负载量由大到小的顺序，依次选择至少一个所述第三传输载频作为所述第二传输载频。
  11. 根据权利要求8-10任一项所述的数据传输装置，其特征在于，所述选择单元用于，当所述第一传输载频的负载量均大于或等于各自对应的所述负载门限时，从所述第一传输载频中按照负载量由小到大的顺序依次选择至少一个传输载频作为所述第二传输载频；或者，
    当所述第一传输载频的负载量均大于或等于各自对应的所述负载门限时，从所述第一传输载频中按照负载量由大到小的顺序依次选择至少一个传输载频作为所述第二传输载频；或者，
    当所述第一传输载频的负载量均大于或等于各自对应的所述负载门限时，从所述第一传输载频中随机选择至少一个传输载频作为所述第二传输载频。
  12. 根据权利要求8所述的数据传输装置，其特征在于，所述配置信息还包括所述至少一个载频标识对应的概率门限；
    所述选择单元用于，从所有第四传输载频中选择至少一个第四传输载频作为所述第二传输载频，其中，所述第四传输载频包括：负载量小于或等于对应的所述负载门限的所述第一传输载频，以及负载量大于或等于对应的所述负载门限且所对应的随机数小于或等于所述概率门限的所述第一传输载频；或者，所述第四传输载频包括：负载量小于或等于对应的所述负载门限的所述第一传输载频，以及负载量大于或等于对应的所述负载门限且所对应的随机数大于或等于所述概率门限的所述第一传输载频。
  13. 根据权利要求8-12任一项所述的数据传输装置，其特征在于，所述配置信息还包括与所述至少一个载频标识对应的数据类型标识；
    所述选择单元用于，从所有具有与所述直连链路数据对应的数据类型标识的所述第一传输载频中选择至少一个传输载频作为第二传输载频。
  14. 根据权利要求8-13任一项所述的数据传输装置，其特征在于，所述配置信息还包括与所述至少一个载频标识对应的传输资源池配置信息，所述传输资源池配置信息包括时频资源块的位置信息；所述第一传输载频的负载量为对应的所述传输资源池配置信息所对应的传输资源池的负载量。
  15. 一种终端，其特征在于，所述终端包括：存储器、与存储器连接的处理器，所述存储器用于存储程序代码，当所述处理器用于运行或执行存储在所述存储器内的程序代码时，执行如权利要求1-7任一项所述的方法。
  16. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有指令，当所述计算机可读存储介质在计算机上运行时，使得所述计算机执行如权利要求1-7任一项所述的方法。
PCT/CN2018/076071 2018-02-09 2018-02-09 基于直连链路的数据传输方法、装置和终端 WO2019153283A1 (zh)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/CN2018/076071 WO2019153283A1 (zh) 2018-02-09 2018-02-09 基于直连链路的数据传输方法、装置和终端
EP18905839.9A EP3735026A4 (en) 2018-02-09 2018-02-09 DATA TRANSMISSION PROCESS BASED ON A DIRECT, DEVICE AND TERMINAL LINK
CN201880088481.2A CN111684832B (zh) 2018-02-09 2018-02-09 基于直连链路的数据传输方法、装置和终端
US16/988,482 US20200374738A1 (en) 2018-02-09 2020-08-07 Direct link-based data transmission method and apparatus, and terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/076071 WO2019153283A1 (zh) 2018-02-09 2018-02-09 基于直连链路的数据传输方法、装置和终端

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US16/988,482 Continuation US20200374738A1 (en) 2018-02-09 2020-08-07 Direct link-based data transmission method and apparatus, and terminal

Publications (1)

Publication Number Publication Date
WO2019153283A1 true WO2019153283A1 (zh) 2019-08-15

Family

ID=67549176

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/076071 WO2019153283A1 (zh) 2018-02-09 2018-02-09 基于直连链路的数据传输方法、装置和终端

Country Status (4)

Country Link
US (1) US20200374738A1 (zh)
EP (1) EP3735026A4 (zh)
CN (1) CN111684832B (zh)
WO (1) WO2019153283A1 (zh)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103338497A (zh) * 2013-06-14 2013-10-02 北京交通大学 一种d2d通信系统中自主设备发现方法
WO2017137009A1 (en) * 2016-02-12 2017-08-17 Huawei Technologies Co., Ltd. System and method for determining a resource selection technique

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9980193B2 (en) * 2014-12-12 2018-05-22 Telefonaktiebolaget Lm Ericsson (Publ) Transport format for communications
WO2016182293A1 (ko) * 2015-05-08 2016-11-17 엘지전자 주식회사 무선 통신 시스템에서 v2x 통신을 수행하는 단말의 전송 전력 결정 방법 및 상기 방법을 이용하는 단말
US9717079B2 (en) * 2015-07-14 2017-07-25 Motorola Mobility Llc Method and apparatus for selecting a resource assignment
JP6579597B2 (ja) * 2015-08-10 2019-09-25 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． Ｄ２ｄ同期方法、ユーザ機器、およびサービングセル
EP3316612B3 (en) * 2015-08-31 2022-05-11 Huawei Technologies Co., Ltd. Device-to-device (d2d) service transmission method, apparatus and device
US10624112B2 (en) * 2015-09-23 2020-04-14 Qualcomm Incorporated Location and listen-before-schedule based resource allocation for vehicle-to-vehicle communication
CN107645735B (zh) * 2016-07-21 2020-10-30 普天信息技术有限公司 一种V2X网络中sidelink的资源负载测量方法以及装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103338497A (zh) * 2013-06-14 2013-10-02 北京交通大学 一种d2d通信系统中自主设备发现方法
WO2017137009A1 (en) * 2016-02-12 2017-08-17 Huawei Technologies Co., Ltd. System and method for determining a resource selection technique

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
Title
CATT: "Some consideration of Rx limitation", 3GPP TSG-RAN WG2 #100 R2-1712854, 1 December 2017 (2017-12-01), XP051371739 *
ERICSSON: "Sidelink Carrier Selection Criteria for TX", 3GPP TSG-RAN WG2 #100 TDOC R2-1713516, 1 December 2017 (2017-12-01), XP051372215 *
ERICSSON: "Sidelink Carrier Selection Criteria", 3GPP TSG-RAN WG2 #99BIS TDOC R2-1711493, 13 October 2017 (2017-10-13), XP051343465 *
HUAWEI ET AL: "Discussion on the Tx carrier selection for PC5 CA", 3GPP TSG-RAN WG2 MEETING#100 R2-1712751, 1 December 2017 (2017-12-01), XP051371654 *
HUAWEI ET AL: "On UEs with limited Rx capability in PC5 CA", 3GPP TSG-RAN WG2 MEETING #100 R2-1712749, 1 December 2017 (2017-12-01), XP051371652 *
See also references of EP3735026A4 *

Also Published As

Publication number Publication date
US20200374738A1 (en) 2020-11-26
CN111684832A (zh) 2020-09-18
EP3735026A4 (en) 2020-11-18
CN111684832B (zh) 2022-04-22
EP3735026A1 (en) 2020-11-04

Similar Documents

Publication Publication Date Title
CN109392015B (zh) 一种资源选择方法及装置
JP7052056B2 (ja) データ伝送方法及び装置
JP7169499B2 (ja) キャリア集合の決定方法およびデバイス、記憶媒体、および電子デバイス
CN109640289B (zh) 一种通信方法及设备、通信系统
US20150351110A1 (en) Electronic apparatus, a central node apparatus and a network side apparatus, a transmission method and a configuration method
KR101813822B1 (ko) D2d 발견 신호의 송신 방법과 송신 장치
WO2018227985A1 (zh) 一种终端之间通信的方法、终端和系统
RU2742100C1 (ru) Способ передачи данных, оконечное устройство и сетевое устройство
CN106162513A (zh) 支持优先级的接近业务直接通信的方法和装置
WO2020107348A1 (zh) 非授权频谱中的通信方法、装置及系统
CN111787616A (zh) 一种上行信息传输方法及装置
WO2021212514A1 (zh) 基于设备到设备的资源确定方法和设备
TWI744611B (zh) 接取控制資訊的傳輸方法、裝置及網路側設備
WO2022077467A1 (zh) 用于资源确定的方法及装置
CN104009937A (zh) 一种增强型传输选择标准配置信息传输方法及装置
CN110876193B (zh) 信息传输方法、通信设备及网络设备
WO2024040412A1 (zh) 信道占用率cbr的确定方法和装置
WO2023142002A1 (zh) 信息传输方法、装置、设备及存储介质
WO2019153283A1 (zh) 基于直连链路的数据传输方法、装置和终端
US11844053B2 (en) Channel quality information determining method, apparatus, and system
CN115918242A (zh) 通信方法及装置
CN111642016A (zh) 链路重新配置处理方法及相关产品
WO2024093832A1 (zh) 一种资源选择方法及装置
WO2024032735A1 (zh) 一种下行控制信息的检测方法及相关装置
WO2024067315A1 (zh) 通信方法和相关产品

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18905839

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2018905839

Country of ref document: EP

Effective date: 20200728

NENP Non-entry into the national phase

Ref country code: DE