WO2019153125A1 - 一种数据传输的方法、设备及计算机存储介质 - Google Patents
一种数据传输的方法、设备及计算机存储介质 Download PDFInfo
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- WO2019153125A1 WO2019153125A1 PCT/CN2018/075454 CN2018075454W WO2019153125A1 WO 2019153125 A1 WO2019153125 A1 WO 2019153125A1 CN 2018075454 W CN2018075454 W CN 2018075454W WO 2019153125 A1 WO2019153125 A1 WO 2019153125A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1825—Adaptation of specific ARQ protocol parameters according to transmission conditions
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- H—ELECTRICITY
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- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
- H04L1/1816—Hybrid protocols; Hybrid automatic repeat request [HARQ] with retransmission of the same, encoded, message
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- H—ELECTRICITY
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- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
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- H—ELECTRICITY
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- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1858—Transmission or retransmission of more than one copy of acknowledgement message
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- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
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- H04W4/44—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
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- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/188—Time-out mechanisms
Definitions
- the embodiments of the present invention relate to the field of wireless communications technologies, and in particular, to a data transmission method, device, and computer storage medium.
- the vehicle networking system adopts a Long Term Evolution (LTE)-to-device (D2D, Device to Device) side-link (SL, Sidelink) transmission technology, and the communication data is received by the base station in a conventional LTE system or Different ways of sending, the vehicle networking system uses the terminal-to-terminal direct communication method, so it has higher spectral efficiency and lower transmission delay.
- LTE Long Term Evolution
- D2D Device to Device
- SL Sidelink
- mode 3 the transmission resources of the terminal are allocated by the base station.
- mode 4 the terminal determines the transmission resource by means of sensing + reservation.
- the Hybrid Automatic Repeat reQuest (HARQ) mechanism based on the feedback from the receiver is not supported. Therefore, for the V2X technology, the data transmission based on the HARQ mechanism is needed to be solved. problem.
- HARQ Hybrid Automatic Repeat reQuest
- Embodiments of the present invention are directed to a method, device, and computer storage medium for data transmission.
- an embodiment of the present invention provides a data transmission method, where the method is applied to a user equipment sending end, and the method includes:
- an embodiment of the present invention provides a data transmission method, where the method is applied to a user equipment receiving end, and the method includes:
- an embodiment of the present invention provides a data transmission method, where the method is applied to a network side device, and the method includes:
- the embodiment of the present invention provides a user equipment sending end, including a determining part and a transmitting part, where the determining part is configured to determine the to-be-based based on configuration information of HARQ retransmission for data to be transmitted.
- HARQ retransmission mode for transmitting data
- the transmitting part is configured to transmit the to-be-transmitted data to the user equipment receiving end according to the HARQ retransmission mode.
- an embodiment of the present invention provides a user equipment receiving end, including: a second receiving part and a third receiving part;
- the second receiving part is configured to receive a HARQ transmission mode of the data to be transmitted sent by the sending end of the user equipment;
- the third receiving part is configured to receive HARQ retransmission data of the to-be-transmitted data based on the HARQ transmission mode of the data to be transmitted.
- an embodiment of the present invention provides a network side device, including: a sending part, configured to: send configuration information to a sending end of a user equipment, where the configuration information is used to determine a hybrid automatic retransmission of data to be transmitted. Request HARQ retransmission mode.
- an embodiment of the present invention provides a user equipment sending end, including: a first network interface, a first memory, and a first processor;
- the first network interface is configured to receive and send signals during the process of transmitting and receiving information with other external network elements;
- the first memory is configured to store a computer program capable of running on the first processor
- the first processor is configured to perform the steps of the method of the first aspect when the computer program is run.
- an embodiment of the present invention provides a user equipment receiving end, including: a second network interface, a second memory, and a second processor;
- the second network interface is configured to receive and send signals during the process of transmitting and receiving information with other external network elements
- the second memory is configured to store a computer program capable of running on the second processor
- the second processor is configured to perform the steps of the method of the second aspect when the computer program is run.
- an embodiment of the present invention provides a network side device, including: a third network interface, a third memory, and a third processor;
- the third network interface is configured to receive and send signals during the process of transmitting and receiving information with other external network elements;
- the third memory is configured to store a computer program capable of running on a third processor
- the third processor is configured to perform the steps of the method of the third aspect when the computer program is run.
- an embodiment of the present invention provides a computer storage medium storing a program for data transmission, where the program for data transmission is implemented by at least one processor to implement the first aspect or the second aspect or The steps of the method described in the third aspect.
- the embodiment of the present invention provides a data transmission method, a device, and a computer storage medium.
- the HARQ retransmission mode of the data to be transmitted is determined based on the configuration information, and is treated according to the HARQ retransmission mode.
- the data is transmitted for transmission, thereby implementing data transmission based on the HARQ mechanism for the V2X technology. It is not necessary to adopt HARQ retransmission for all data to be transmitted, thereby avoiding waste of channel resources, balancing channel resource utilization and correct receiving rate of transmitted data.
- FIG. 1 is a schematic diagram of a scenario of mode 3 in a car network
- FIG. 2 is a schematic diagram of a scenario of mode 4 in a car network
- FIG. 3 is a schematic flowchart of a method for data transmission according to an embodiment of the present disclosure
- FIG. 4 is a schematic flowchart of another method for data transmission according to an embodiment of the present invention.
- FIG. 5 is a schematic flowchart of still another method for data transmission according to an embodiment of the present disclosure.
- FIG. 6 is a schematic flowchart of a data transmission according to an embodiment of the present disclosure.
- FIG. 7A is a schematic diagram of a composition of a sending end of a user equipment according to an embodiment of the present disclosure
- FIG. 7B is a schematic structural diagram of another user equipment sending end according to an embodiment of the present disclosure.
- FIG. 8 is a schematic structural diagram of a specific hardware of a sending end of a user equipment according to an embodiment of the present disclosure
- FIG. 9 is a schematic structural diagram of a receiving end of a user equipment according to an embodiment of the present disclosure.
- FIG. 10 is a schematic structural diagram of a specific hardware of a receiving end of a user equipment according to an embodiment of the present disclosure
- FIG. 11 is a schematic structural diagram of a network side device according to an embodiment of the present disclosure.
- FIG. 12 is a schematic structural diagram of a specific hardware of a network side device according to an embodiment of the present disclosure.
- FIG. 13 is a schematic structural diagram of a system for data transmission according to an embodiment of the present invention.
- the transmission resource of the in-vehicle terminal is allocated by a base station, such as an evolved base station (eNB, evolved NodeB) in LTE or a 5G base station (gNB) in a new air interface (NR, New Radio).
- a base station such as an evolved base station (eNB, evolved NodeB) in LTE or a 5G base station (gNB) in a new air interface (NR, New Radio).
- the base station sends a control message for indicating the Grant resource to the in-vehicle terminal through the downlink (DL, Down Link); and then, the in-vehicle terminal performs data transmission on the SL according to the resource allocated by the base station.
- the base station may allocate a single transmission resource for the vehicle terminal, or may allocate a semi-static transmission resource for the terminal.
- the vehicle terminal adopts a transmission mode of listening and reservation.
- the vehicle terminal acquires an available transmission resource set by means of interception in the resource pool, and the vehicle terminal randomly selects one resource from the transmission resource set for data transmission. Since the service in the car network system has periodic characteristics, the vehicle terminal usually adopts a semi-static transmission mode, that is, after the vehicle terminal selects one transmission resource, the resource is continuously used in multiple transmission cycles, thereby reducing the resource weight.
- the probability of selection and resource conflicts The vehicle terminal carries information for reserving the next transmission resource in the control information of the current transmission, so that other terminals can determine whether the resource is reserved and used by the vehicle terminal by detecting the control information of the vehicle terminal. The purpose of resource conflicts.
- the number of receiving ends that receive the transmitted data may be more than one, that is, the data transmission scenario may be to multicast the transmitted data.
- the sender needs to retransmit as long as one receiver does not receive the correct transmission data. This is a great drain on channel resources.
- the terminal in the embodiment of the present invention may be an in-vehicle terminal or a handheld terminal.
- the PDA Personal Digital Assistant
- the network in the embodiment of the present invention may be an NR network, an LTE network, or the like.
- the method may be applied to a sending end of a user equipment, and the method may include:
- S301 Determine, according to configuration information of a hybrid automatic repeat request HARQ retransmission for data to be transmitted, a HARQ retransmission mode of the data to be transmitted.
- the HARQ retransmission mode of the data to be transmitted is determined based on the configuration information, and the data to be transmitted is transmitted according to the HARQ retransmission mode, so that it is not necessary for all the data to be transmitted.
- the use of HARQ retransmission avoids waste of channel resources, balances channel resource utilization and correct reception rate of transmitted data.
- the HARQ retransmission mode may include performing HARQ retransmission for data to be transmitted or not performing HARQ retransmission for data to be transmitted.
- the determining the HARQ retransmission mode of the data to be transmitted based on the configuration information of the HARQ retransmission for the data to be transmitted includes:
- the configuration information may be sent by the network side device other than the user equipment sending end of the network to the sending end of the user equipment, or may be pre-configured in the sending end of the user equipment.
- the high layer device of the network protocol layer may determine the configuration information based on the set requirement information and send the configuration information to the sending end of the user equipment.
- the access network device may determine the configuration information based on the condition that the HARQ retransmission needs to be performed and send the configuration information to the sending end of the user equipment. This embodiment does not describe this.
- the specific function of the configuration information may be used to determine whether to perform the HARQ retransmission determination rule, so that the user equipment sender can determine all the data to be transmitted according to the determination rule, and based on the determination result, the user equipment sends
- the terminal can determine whether to perform HARQ retransmission for a certain or a certain type of data to be transmitted, and also can determine whether HARQ retransmission is not performed for a certain or a certain type of data to be transmitted.
- the configuration information may include an indication that the target service needs to perform HARQ retransmission, or an indication that the target address needs to perform HARQ retransmission based on the determination rule that is configured by the configuration information; correspondingly, the foregoing manner is implemented according to the foregoing implementation manner.
- the configuration information determines whether the data to be transmitted needs to perform HARQ retransmission:
- Detecting whether the to-be-transmitted data includes an indication that the target service needs to perform HARQ retransmission or an indication that the target address needs to perform HARQ retransmission;
- the determination rule that is characterized by the configuration information is described based on the attribute information of the data to be transmitted corresponding to the specific service requirement. For example, when the user equipment sends the data to be transmitted, Adding an indication information field or byte to the data structure of the data to be transmitted indicates that the target service or the target address of the data to be transmitted needs to perform HARQ retransmission. Therefore, whether the indication to be transmitted includes the indication that the target service needs to perform HARQ retransmission or the indication that the target address needs to perform HARQ retransmission may be detected to determine whether to perform HARQ retransmission for the to-be-transmitted data.
- the configuration information may also include: the target address or the reliability description information that the target service needs to perform HARQ retransmission based on the determination rule that is configured by the configuration information.
- determining, according to the configuration information, whether the data to be transmitted needs to perform HARQ retransmission according to the configuration information includes:
- the determination rule represented by the configuration information is described based on the reliability requirement. Therefore, it is possible to detect whether the reliability requirement of the data to be transmitted meets the target address or the reliability description information of the target service required for HARQ retransmission.
- the specific implementation may be a specific reliability requirement of the data to be transmitted, for example, the bit error rate is lower than the set reliability threshold, and the transmission success rate is higher than the set reliability threshold.
- the user equipment sender can perform HARQ retransmission in order to realize the transmission reliability of the data to be transmitted for a specific service or a specific target address.
- the data transmission of the alarm service requires high reliability requirements, so that the user equipment is required.
- the reliability requirement for setting the data transmission of the alarm service is that the error rate is less than 1%, and the reliability threshold of the set error rate is 5%. Therefore, for the alarm information
- the transmission requires HARQ retransmission.
- the target of data transmission is used as a data relay node, based on the importance of the relay node in the data transmission of the car network, a high reliability requirement is required for the data transmitted to the relay node, and the setting is required.
- the transmission success rate of the data to be transmitted is higher than 99%, and the set transmission success threshold is 95%. Therefore, when the user equipment sends the data to be transmitted to the relay node, the data to be transmitted is based on the data to be transmitted.
- the target address is the relay node, so that HARQ retransmission is required for the data to be transmitted. It can be understood that the determination rule represented by the configuration information can also be described based on the attribute information corresponding to other service requirements, which is not described in this embodiment.
- the configuration information may include: a network environment indicator threshold corresponding to the HARQ retransmission.
- determining, according to the configuration information, whether the data to be transmitted needs to perform HARQ retransmission according to the configuration information may include:
- the determination rule represented by the configuration information is described based on the network environment indicator, and the indicators may specifically include any one or more of the following: network speed, synchronization mode, CBR, PPPP, etc., and the foregoing indicators can
- the current network environment quality is evaluated from different angles and aspects. It can be understood that when the current network environment quality is low, the data transmission will cause a high error rate, so in this case, it is necessary to target the data to be transmitted. Perform HARQ retransmission to ensure the correct rate of data transmission. Similarly, when the above indicators are evaluated to have a high quality of the current network environment, the bit error rate of the data transmission is reduced, so that there is no need to perform HARQ retransmission for the data to be transmitted.
- the user equipment sending end determines the HARQ transmission mode of the to-be-transmitted data, and the user equipment sends the HARQ transmission mode according to different HARQ transmission modes.
- the terminal needs to notify the user equipment receiving end of the HARQ transmission mode, so that the receiving end of the user equipment can correctly receive the HARQ retransmission data of the data to be transmitted and the data to be transmitted according to the received HARQ transmission mode.
- the technical solution shown in FIG. 3 may further include:
- the HARQ transmission mode may specifically include: a HARQ retransmission mode that does not require feedback and a HARQ retransmission mode that requires feedback.
- a HARQ retransmission mode that does not require feedback
- a HARQ retransmission mode that requires feedback.
- the HARQ transmission mode of the data to be transmitted can be transmitted by using notification information.
- the HARQ transmission mode of the to-be-transmitted data is sent to the user equipment receiving end by a physical side-line control channel (PSCCH) and/or a physical side-link shared CHannel (PSSCH).
- PSCCH physical side-line control channel
- PSSCH physical side-link shared CHannel
- the user equipment sender may send the HARQ transmission mode of the data to be transmitted in any of the following manners:
- the transmitting the data to be transmitted to the user equipment receiving end according to the HARQ retransmission mode includes:
- the HARQ of the to-be-transmitted data and the HARQ to be transmitted are directly received without receiving feedback information of the user equipment receiving end for the data to be transmitted.
- the retransmitted data is sent to the receiving end of the user equipment according to the set time and/or frequency resource location.
- the UE device needs to perform timing after transmitting the data to be transmitted, and then send the HARQ retransmission data of the data to be transmitted after the timer ends.
- the sending end of the user equipment may send a specific HARQ transmission mode to the receiving end of the user equipment in the form of the notification information, and the notification information may further include a specific timing time. Then, after receiving the data to be transmitted sent by the sending end of the user equipment, the receiving end of the user equipment can receive the HARQ retransmission data of the data to be transmitted sent by the sending end of the user equipment according to the pre-known timing time.
- the transmitting the data to be transmitted to the user equipment receiving end according to the HARQ retransmission mode includes:
- the feedback information is used to indicate whether Performing HARQ retransmission on the data to be transmitted;
- the receiving end of the user equipment may perform error detection after receiving the data to be transmitted, and if the detection result indicates that the receiving end of the user equipment is correctly received, If the data is transmitted, the user equipment does not need to perform HARQ retransmission for the data to be transmitted. At this time, the receiving end of the user equipment may not send any feedback to the sending end of the user equipment, and the sending end of the user equipment starts timing after transmitting the data to be transmitted.
- the transmitting end of the user equipment sends the HARQ weight of the data to be transmitted. Pass data.
- the receiving end of the user equipment may also send feedback information to the sending end of the user equipment for the correct receiving of the data to be transmitted, to indicate the correct receiving of the data to be transmitted, and after receiving the feedback information, the sending end of the user equipment receives the feedback information. , the HARQ retransmission data of the data to be transmitted is no longer sent.
- the sending end of the user equipment does not receive the feedback information before the timeout expires, it indicates that the data to be transmitted is not correctly received, so that the sending end of the user equipment sends the HARQ weight of the data to be transmitted to the receiving end of the user equipment. Pass data.
- FIG. 4 a method for data transmission according to an embodiment of the present invention is shown.
- the method is applied to a receiving end of a user equipment, and the method includes:
- S401 Receive a HARQ transmission mode in which the sending end of the user equipment sends the data to be transmitted.
- the sending end of the user equipment can be sent in the form of notification information.
- the user equipment receiving end receives the HARQ retransmission data of the to-be-transmitted data based on the HARQ transmission mode of the data to be transmitted, thereby avoiding receiving the HARQ retransmission data for all the data to be transmitted. , reducing the waste of channel resources, balancing channel resource utilization and correct receiving rate of transmitted data.
- the HARQ transmission mode of the transmitted data to be transmitted including:
- the receiving, by the user equipment, the HARQ transmission mode of the to-be-transmitted data sent by the PSCCH and/or the PSSCH includes:
- the HARQ transmission mode includes: a HARQ retransmission mode that does not require feedback and a HARQ retransmission mode that requires feedback.
- the HARQ transmission mode is a HARQ retransmission mode that does not require feedback, and preferably, the HARQ transmission data according to the to-be-transmitted data is received, and the HARQ retransmission data of the to-be-transmitted data is received, including :
- the HARQ transmission mode being the non-feedback HARQ retransmission mode, not sending feedback information for the to-be-transmitted data, but receiving the to-be-sent sent by the user equipment sending end according to a set time interval. Transmitting data and HARQ retransmission data of the data to be transmitted.
- the transmitting end of the user equipment may perform timing after transmitting the data to be transmitted, and then send the to-be-transmitted after the timing is over.
- HARQ retransmission data of data may further include a specific timing time.
- the receiving end of the user equipment can receive the HARQ retransmission data of the data to be transmitted sent by the sending end of the user equipment according to the pre-known timing time. And the receiving end of the user equipment can determine the real data content of the data to be transmitted according to the received data to be transmitted and the HARQ retransmission data of the data to be transmitted.
- the HARQ retransmission data of the to-be-transmitted data is received by the HARQ transmission mode based on the data to be transmitted, including:
- the HARQ transmission mode being the HARQ retransmission mode that needs to be fed back, sending feedback information for the to-be-transmitted data;
- the HARQ transmission mode is the HARQ retransmission mode that needs to be fed back, after the user equipment receiving end receives the data to be transmitted sent by the sending end of the user equipment, according to the data to be transmitted.
- the receiving state generates feedback information, where the feedback information is used to indicate whether to perform HARQ retransmission for the to-be-transmitted data;
- the receiving end of the user equipment may perform error detection after receiving the data to be transmitted, and if the detection result indicates the user equipment The receiving end correctly receives the data to be transmitted, and then the transmitting end of the user equipment does not need to perform HARQ retransmission for the data to be transmitted. At this time, the receiving end of the user equipment may not send any feedback information to the sending end of the user equipment.
- the time can be started after the data to be transmitted is sent, and the feedback information of the receiving end of the user equipment is not received before the timeout expires, then the data to be transmitted is correctly received by the receiving end of the user equipment, and thus The HARQ retransmission data of the data to be transmitted is then transmitted.
- the transmitting end of the user equipment sends the HARQ weight of the data to be transmitted. Pass data.
- the user equipment receiving end may also send feedback information to the sending end of the user equipment for correct receiving of the data to be transmitted, to indicate correct receiving of the data to be transmitted. Therefore, after receiving the feedback information, the sending end of the user equipment does not send the HARQ retransmission data of the data to be transmitted. On this premise, when the sending end of the user equipment does not receive the feedback information before the timeout expires, it indicates that the data to be transmitted is not correctly received, so that the sending end of the user equipment sends the HARQ weight of the data to be transmitted to the receiving end of the user equipment. Pass data.
- a method for data transmission according to an embodiment of the present invention is provided.
- the method is applied to a network side device, and the method includes:
- S501 Send configuration information to the sending end of the user equipment, where the configuration information is used to determine a hybrid automatic repeat request HARQ retransmission mode of the data to be transmitted.
- the user equipment sending end determines whether to perform HARQ retransmission according to the configuration information, so that the user equipment sending end does not need to adopt HARQ retransmission for all data to be transmitted, thereby avoiding waste of channel resources, balancing channel resource utilization and sending. The correct reception rate of the data.
- the high-level device of the network protocol layer may determine the configuration information based on the set requirement information and send the configuration information to the sending end of the user equipment, or may be preferably an access network device.
- the configuration information is determined based on conditions that require HARQ retransmission and sent to the user equipment sender. Therefore, the network side device may specifically be a high layer device or an access network device of the network protocol layer.
- the configuration information may be used to determine whether to perform the HARQ retransmission determination rule, so that the user equipment sender can determine all the data to be transmitted according to the determination rule.
- the configuration information may include: an indication that the target service needs to perform HARQ retransmission, or an indication that the target address needs to perform HARQ retransmission.
- the determination rule represented by the configuration information is described based on the reliability requirement. Therefore, the configuration information may also include: the target address or the reliability description information that the target service needs to perform HARQ retransmission. This embodiment does not describe this.
- the configuration information may include: a network environment indicator threshold corresponding to the HARQ retransmission.
- the determination rule represented by the configuration information is described based on the network environment indicator, and the indicators may specifically include any one or more of the following: network speed, synchronization mode, CBR, PPPP, etc., and the foregoing indicators can
- the current network environment quality is evaluated from different angles and aspects. It can be understood that when the current network environment quality is low, the data transmission will cause a high error rate, so in this case, it is necessary to target the data to be transmitted. Perform HARQ retransmission to ensure the correct rate of data transmission. Similarly, when the above indicators are evaluated to have a high quality of the current network environment, the bit error rate of the data transmission is reduced, so that there is no need to perform HARQ retransmission for the data to be transmitted.
- FIG. 6 a specific process of data transmission according to an embodiment of the present invention is shown, which may be applied to a network side device, a user equipment receiving end, and a user equipment sending end.
- the specific process may include:
- the network side device sends configuration information of the HARQ retransmission for the data to be transmitted to the sending end of the user equipment;
- the configuration information is used to identify a determination rule for performing HARQ retransmission
- the configuration information may include:
- the target service needs to perform an indication of HARQ retransmission, or the target address needs to perform an indication of HARQ retransmission;
- the target address or the target service needs to perform reliability description information of the HARQ retransmission
- the network network indicator threshold corresponding to the HARQ retransmission needs to be performed.
- the user equipment sending end determines the HARQ retransmission mode of the to-be-transmitted data based on the configuration information of the HARQ retransmission for the data to be transmitted.
- the HARQ retransmission mode may include performing HARQ retransmission for data to be transmitted or not performing HARQ retransmission for data to be transmitted. Based on this, in this step, the sending end of the user equipment may detect whether the data to be transmitted complies with the determining rule; if yes, determine to perform HARQ retransmission for the data to be transmitted; otherwise, determine that the data to be transmitted is to be transmitted. The data is not subjected to HARQ retransmission.
- the process further includes: S603: User The device sending end notifies the user equipment receiving end of the HARQ transmission mode of the data to be transmitted.
- the HARQ transmission mode may specifically include: a HARQ retransmission mode that does not require feedback and a HARQ retransmission mode that requires feedback.
- the data transmission and reception are performed in each case between the terminals in the Internet of Vehicles. Therefore, for the step S603, the method may include:
- the user equipment sending end notifies the user equipment receiving end of the HARQ transmission mode of the data to be transmitted through the physical side row control channel PSCCH and/or the physical side row shared channel PSSCH.
- the implementation is performed in the following two ways.
- the user equipment sending end sends the HARQ retransmission data of the to-be-transmitted data and the to-be-transmitted data to the user equipment receiving end according to the set time and/or frequency resource location.
- the receiving end of the user equipment can receive the HARQ retransmission data of the data to be transmitted and the data to be transmitted sent by the sending end of the user equipment according to the set time interval.
- the HARQ transmission mode being the HARQ retransmission mode that needs feedback, refer to the mode 2 shown in the dotted line frame in FIG. 6:
- S604B The sending end of the user equipment sends the data to be transmitted to the receiving end of the user equipment;
- the sending end of the user equipment waits to receive the feedback information sent by the receiving end of the user equipment.
- the user equipment receiving end generates feedback information according to the receiving state of the to-be-transmitted data, where the feedback information is used to indicate whether to perform HARQ retransmission for the to-be-transmitted data.
- S606B The user equipment receiving end sends the feedback information to the sending end of the user equipment
- S607B In response to the feedback information, performing HARQ retransmission for the to-be-transmitted data, the user equipment sending end sends the HARQ retransmission data of the to-be-transmitted data to the user equipment receiving end.
- a user equipment sending end 70 which may include: a determining part 701 and a transmitting part 702;
- the determining part 701 is configured to determine a HARQ retransmission mode of the to-be-transmitted data based on configuration information of a HARQ retransmission for data to be transmitted;
- the transmitting part 702 is configured to transmit the to-be-transmitted data to the user equipment receiving end according to the HARQ retransmission mode.
- the determining portion 701 is configured to:
- Receiving the configuration information determining, according to the configuration information, whether the data to be transmitted needs to perform HARQ retransmission.
- the configuration information includes: an indication that the target service needs to perform HARQ retransmission, or an indication that the target address needs to perform HARQ retransmission;
- the determining part 701 is configured to: detect whether the indication to be transmitted includes an indication that the target service needs to perform HARQ retransmission, or an indication that the target address needs to perform HARQ retransmission;
- the configuration information includes: a destination address or reliability description information that the target service needs to perform HARQ retransmission.
- the determining part 701 is configured to: detect whether the reliability requirement of the data to be transmitted meets the reliability requirement description information of the target address or the target service, and perform HARQ retransmission;
- the configuration information includes: a network environment indicator threshold corresponding to a HARQ retransmission;
- the determining part 701 is configured to: detect whether the network environment indicator value when the data to be transmitted is sent exceeds a network environment indicator threshold corresponding to the need for performing HARQ retransmission;
- the user equipment sending end 70 may further include: a first receiving part 703 configured to send the HARQ transmission mode of the to-be-transmitted data to the user equipment receiving end.
- the first receiving part 703 is configured to:
- the first receiving part 703 is configured to: send, by the PSCCH and/or the PSSCH, the HARQ transmission mode of the to-be-transmitted data sent by the receiving end of the user equipment;
- the HARQ transmission mode of the to-be-transmitted data sent by the user equipment to the receiving end of the PSCCH and/or the PSSCH.
- the HARQ transmission mode includes a HARQ retransmission mode that does not require feedback and a HARQ retransmission mode that requires feedback.
- the transmitting part 702 is configured to:
- the HARQ of the to-be-transmitted data and the HARQ to be transmitted are directly received without receiving feedback information of the user equipment receiving end for the data to be transmitted.
- the retransmitted data is sent to the receiving end of the user equipment according to the set time and/or frequency resource location.
- the transmitting part 702 is configured to:
- the feedback information is used to indicate whether Performing HARQ retransmission on the data to be transmitted;
- the “part” may be a partial circuit, a partial processor, a partial program or software, etc., of course, may be a unit, a module, or a non-modular.
- each component in this embodiment may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
- the above integrated unit can be implemented in the form of hardware or in the form of a software function module.
- the integrated unit may be stored in a computer readable storage medium if it is implemented in the form of a software function module and is not sold or used as a stand-alone product.
- the technical solution of the embodiment is essentially Said that the part contributing to the prior art or all or part of the technical solution can be embodied in the form of a software product stored in a storage medium, comprising a plurality of instructions for making a computer device (may It is a personal computer, a server, or a network device, etc. or a processor that performs all or part of the steps of the method described in this embodiment.
- the foregoing storage medium includes: a U disk, a mobile hard disk, a read only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes.
- the embodiment provides a computer storage medium storing a program for data transmission, and the program of the data transmission is implemented by at least one processor to implement the steps of the method described in the first embodiment.
- a specific hardware structure of the user equipment sending end 70 may include: a first network interface 801 and a first memory. 802 and first processor 803; the various components are coupled together by a bus system 804.
- bus system 804 is used to implement connection communication between these components.
- Bus system 804 includes, in addition to the data bus, a power bus, a control bus, and a status signal bus.
- various buses are labeled as bus system 804 in FIG.
- the first network interface 801 is configured to receive and send signals during the process of transmitting and receiving information with other external network elements.
- a first memory 802 configured to store a computer program capable of running on the first processor 803;
- the first processor 803 is configured to: when the computer program is executed, execute:
- the first memory 802 in the embodiments of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
- the non-volatile memory may be a read-only memory (ROM), a programmable read only memory (PROM), an erasable programmable read only memory (Erasable PROM, EPROM), or an electric Erase programmable read only memory (EEPROM) or flash memory.
- the volatile memory can be a Random Access Memory (RAM) that acts as an external cache.
- RAM Random Access Memory
- many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM).
- the first memory 802 of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.
- the first processor 803 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the first processor 803 or an instruction in a form of software.
- the first processor 803 may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), or a field programmable gate array (FPGA). Or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.
- DSP digital signal processor
- ASIC application specific integrated circuit
- FPGA field programmable gate array
- the methods, steps, and logical block diagrams disclosed in the embodiments of the present invention may be implemented or carried out.
- the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
- the steps of the method disclosed in the embodiments of the present invention may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
- the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
- the storage medium is located in the first memory 802, and the first processor 803 reads the information in the first memory 802 and completes the steps of the above method in combination with the hardware thereof.
- the embodiments described herein can be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof.
- the processing unit can be implemented in one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processing (DSP), Digital Signal Processing Equipment (DSP Device, DSPD), programmable Programmable Logic Device (PLD), Field-Programmable Gate Array (FPGA), general purpose processor, controller, microcontroller, microprocessor, other for performing the functions described herein In an electronic unit or a combination thereof.
- ASICs Application Specific Integrated Circuits
- DSP Digital Signal Processing
- DSP Device Digital Signal Processing Equipment
- PLD programmable Programmable Logic Device
- FPGA Field-Programmable Gate Array
- the techniques described herein can be implemented by modules (eg, procedures, functions, and so on) that perform the functions described herein.
- the software code can be stored in memory and executed by the processor.
- the memory can be implemented in the processor or external to the processor.
- a composition of a user equipment receiving end 90 includes: a second receiving part 901 and a third receiving part 902;
- the second receiving part 901 is configured to receive a HARQ transmission mode of the data to be transmitted sent by the sending end of the user equipment;
- the third receiving part 902 is configured to receive HARQ retransmission data of the to-be-transmitted data based on the HARQ transmission mode of the data to be transmitted.
- the second receiving part 901 is configured to:
- the second receiving part 901 is configured to:
- the HARQ transmission mode includes a HARQ retransmission mode that does not require feedback and a HARQ retransmission mode that requires feedback.
- the third receiving part 902 is configured to:
- the feedback information is not sent for the to-be-transmitted data.
- the HARQ retransmission data of the to-be-transmitted data and the to-be-transmitted data sent by the sending end of the user equipment may be received according to a set time interval.
- the third receiving part 902 is configured to:
- the HARQ transmission mode being the HARQ retransmission mode that needs to be fed back, sending feedback information for the to-be-transmitted data;
- the third receiving part 902 Corresponding to the feedback information, performing HARQ retransmission for the to-be-transmitted data, and receiving HARQ retransmission data of the to-be-transmitted data sent by the sending end of the user equipment. Specifically, after receiving the data to be transmitted sent by the sending end of the user equipment, the third receiving part 902 generates feedback information according to the receiving state of the data to be transmitted; wherein the feedback information is used to indicate whether Performing HARQ retransmission on the data to be transmitted;
- the embodiment provides a computer storage medium storing a program for data transmission, and the program of the data transmission is implemented by at least one processor to implement the steps of the method described in the second embodiment.
- the program of the data transmission is implemented by at least one processor to implement the steps of the method described in the second embodiment.
- a specific hardware structure of the user equipment receiving end 90 may include: a second network interface 1001 and a second memory. 1002 and a second processor 1003; the various components are coupled together by a bus system 1004.
- the bus system 1004 is used to implement connection communication between these components.
- the bus system 1004 includes a power bus, a control bus, and a status signal bus in addition to the data bus.
- various buses are labeled as bus system 1004 in FIG.
- the second network interface 1001 is configured to receive and send signals during the process of transmitting and receiving information with other external network elements.
- the second processor 1003 is configured to: when the computer program is executed, execute:
- the second processor 1003 of the user equipment receiving end 90 is further configured to perform the method steps described in the foregoing Embodiment 2 when the computer program is executed, and details are not described herein.
- a composition of a network side device 110 is shown, which may include: a sending part 1101 configured to send configuration information to a sending end of a user equipment.
- the configuration information is used to determine a hybrid automatic repeat request HARQ retransmission mode of data to be transmitted.
- the configuration information includes: an indication that the target service needs to perform HARQ retransmission, or an indication that the target address needs to perform HARQ retransmission.
- the configuration information includes: a network environment indicator threshold corresponding to a HARQ retransmission.
- the embodiment provides a computer storage medium storing a program for data transmission, and the program of the data transmission is implemented by at least one processor to implement the steps of the method described in the third embodiment.
- the program of the data transmission is implemented by at least one processor to implement the steps of the method described in the third embodiment.
- a specific hardware structure of the network side device 110 may be included, which may include: a third network interface 1201, a third memory 1202, and A third processor 1203; the various components are coupled together by a bus system 1204.
- the bus system 1204 is used to implement connection communication between these components.
- the bus system 1204 includes a power bus, a control bus, and a status signal bus in addition to the data bus.
- various buses are labeled as bus system 1204 in FIG.
- the third network interface 1201 is configured to receive and send signals during the process of transmitting and receiving information with other external network elements.
- a third memory 1202 configured to store a computer program capable of running on the third processor 1203;
- the third processor 1203 is configured to: when the computer program is executed, execute: send configuration information to a sending end of the user equipment; where the configuration information is used to determine a hybrid automatic repeat request HARQ retransmission mode of data to be transmitted.
- the configuration information includes: an indication that the target service needs to perform HARQ retransmission, or an indication that the target address needs to perform HARQ retransmission.
- the configuration information includes: a network environment indicator threshold corresponding to a HARQ retransmission.
- a system 130 for data transmission may be provided, which may include a terminal and a network side device applied to the D2D, and may even be applied to a terminal and a network in the V2X technology.
- the first device 1301 is the user equipment sending end 70 described in any of the foregoing embodiments; the second terminal 1302 is any one of the foregoing implementations.
- the first terminal 1301 is the user equipment sending end 70.
- the user equipment receiving end 90, the network side device is the network side device 110 described in any of the foregoing embodiments.
- the HARQ retransmission mode of the data to be transmitted is determined based on the configuration information, and the data to be transmitted is transmitted according to the HARQ retransmission mode, so that HARQ retransmission is not required for all data to be transmitted, and channel resources are avoided. Waste, balance channel resource utilization and correct reception rate of transmitted data.
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Abstract
本发明实施例提供了一种数据传输的方法、设备及计算机存储介质;该方法包括:基于针对待传输数据的混合自动重传请求HARQ重传的配置信息,决定所述待传输数据的HARQ重传模式;根据所述HARQ重传模式,将所述待传输数据传输至用户设备接收端。通过本发明实施例的技术方案,针对V2X技术,实现了基于HARQ机制的数据传输。无需针对所有的待传输数据均采用HARQ重传,避免了信道资源的浪费,平衡信道资源利用率和发送数据的正确接收率。
Description
本发明实施例涉及无线通信技术领域,尤其涉及一种数据传输的方法、设备及计算机存储介质。
车联网***采用基于长期演进(LTE,Long Term Evolution)-设备到设备(D2D,Device to Device)的侧行链路(SL,Sidelink)传输技术,与传统的LTE***中通信数据通过基站接收或者发送的方式不同,车联网***采用终端到终端直接通信的方式,因此具有更高的频谱效率以及更低的传输时延。
在第三代合作伙伴项目(3GPP,the 3rd Generation Partnership Project)Rel-14中对车联网技术(V2X,Vehicle-to-Everything)进行了标准化,定义了两种传输模式:模式3和模式4。在模式3中,终端的传输资源由基站分配。在模式4中,终端采用侦听(sensing)+预留(reservation)的方式确定传输资源。
在目前的车联网***中,还无法支持基于接收端反馈的混合自动重传请求(HARQ,Hybrid Automatic Repeat reQuest)机制,因此,针对V2X技术,以实现基于HARQ机制的数据传输是需要解决的一个问题。
发明内容
本发明实施例期望提供一种数据传输的方法、设备及计算机存储介质。
本发明实施例的技术方案可以如下实现:
第一方面,本发明实施例提供了一种数据传输的方法,所述方法应用于用户设备发送端,所述方法包括:
基于针对待传输数据的混合自动重传请求HARQ重传的配置信息,决定所述待传输数据的HARQ重传模式;
根据所述HARQ重传模式,将所述待传输数据传输至用户设备接收端。
第二方面,本发明实施例提供了一种数据传输的方法,所述方法应用于用户设备接收端,所述方法包括:
接收用户设备发送端发送的待传输数据的HARQ传输模式;
基于所述待传输数据的HARQ传输模式,接收所述待传输数据的HARQ重传数据。
第三方面,本发明实施例提供了一种数据传输的方法,所述方法应用于网络侧设备,所述方法包括:
向用户设备发送端发送配置信息;其中,所述配置信息用于决定待传输数据的混合自动重传请求HARQ重传模式。
第四方面,本发明实施例提供了一种用户设备发送端,包括决定部分和传输部分,其中,所述决定部分,配置为基于针对待传输数据的HARQ重传的配置信息,决定所述待传 输数据的HARQ重传模式;
所述传输部分,配置为根据所述HARQ重传模式,将所述待传输数据传输至用户设备接收端。
第五方面,本发明实施例提供了一种用户设备接收端,包括:第二接收部分和第三接收部分;其中,
所述第二接收部分,配置为接收用户设备发送端发送的待传输数据的HARQ传输模式;
所述第三接收部分,配置为基于所述待传输数据的HARQ传输模式,接收所述待传输数据的HARQ重传数据。
第六方面,本发明实施例提供了一种网络侧设备,包括:发送部分,配置为:向用户设备发送端发送配置信息;其中,所述配置信息用于决定待传输数据的混合自动重传请求HARQ重传模式。
第七方面,本发明实施例提供了一种用户设备发送端,包括:第一网络接口,第一存储器和第一处理器;其中,
所述第一网络接口,用于在与其他外部网元之间进行收发信息过程中,信号的接收和发送;
所述第一存储器,用于存储能够在所述第一处理器上运行的计算机程序;
所述第一处理器,用于在运行所述计算机程序时,执行第一方面所述方法的步骤。
第八方面,本发明实施例提供了一种用户设备接收端,包括:第二网络接口、第二存储器和第二处理器;
其中,所述第二网络接口,用于在与其他外部网元之间进行收发信息过程中,信号的接收和发送;
所述第二存储器,用于存储能够在第二处理器上运行的计算机程序;
所述第二处理器,用于在运行所述计算机程序时,执行第二方面所述方法的步骤。
第九方面,本发明实施例提供了一种网络侧设备,包括:第三网络接口、第三存储器和第三处理器;
其中,所述第三网络接口,用于在与其他外部网元之间进行收发信息过程中,信号的接收和发送;
所述第三存储器,用于存储能够在第三处理器上运行的计算机程序;
所述第三处理器,用于在运行所述计算机程序时,执行第三方面所述方法的步骤。
第十方面,本发明实施例提供了一种计算机存储介质,所述计算机存储介质存储有数据传输的程序,所述数据传输的程序被至少一个处理器执行时实现第一方面或第二方面或第三方面所述的方法的步骤。
本发明实施例提供了一种数据传输的方法、设备及计算机存储介质;在本发明实施例的技术方案中,基于配置信息来决定待传输数据的HARQ重传模式,并根据HARQ重传模式对待传输数据进行传输,从而针对V2X技术,实现了基于HARQ机制的数据传输。无需针对所有的待传输数据均采用HARQ重传,避免了信道资源的浪费,平衡信道资源利用率和发送数据的正确接收率。
图1为车联网中的模式3的场景示意图;
图2为车联网中的模式4的场景示意图;
图3为本发明实施例提供的一种数据传输的方法流程示意图;
图4为本发明实施例提供的另一种数据传输的方法流程示意图;
图5为本发明实施例提供的又一种数据传输的方法流程示意图;
图6为本发明实施例提供的一种数据传输的具体流程示意图;
图7A为本发明实施例提供的一种用户设备发送端组成示意图;
图7B为本发明实施例提供的另一种用户设备发送端组成示意图;
图8为本发明实施例提供的用户设备发送端的具体硬件结构示意图;
图9为本发明实施例提供的用户设备接收端的组成示意图;
图10为本发明实施例提供的用户设备接收端的具体硬件结构示意图;
图11为本发明实施例提供的网络侧设备的组成示意图;
图12为本发明实施例提供的网络侧设备的具体硬件结构示意图;
图13为本发明实施例提供的一种数据传输的***组成示意图。
为了能够更加详尽地了解本发明实施例的特点与技术内容,下面结合附图对本发明实施例的实现进行详细阐述,所附附图仅供参考说明之用,并非用来限定本发明实施例。
为便于理解本发明实施例的技术方案,以下分别对车联网中的模式3和模式4进行解释说明。
模式3:如图1所示,车载终端的传输资源是由基站,比如LTE中的演进基站(eNB,evolved NodeB)或新空口(NR,New Radio)中的5G基站(gNB)所分配的,具体地,基站通过下行链路(DL,Down Link)向车载终端下发用于指示授权(Grant)资源的控制消息;而后,车载终端根据基站分配的资源在SL上进行数据的发送。在模式3中,基站可以为车载终端分配单次传输的资源,也可以为终端分配半静态传输的资源。
模式4:如图2所示,车载终端采用侦听+预留的传输方式。车载终端在资源池中通过侦听的方式获取可用的传输资源集合,车载终端从该传输资源集合中随机选取一个资源进行数据的传输。由于车联网***中的业务具有周期性特征,因此车载终端通常采用半静态传输的方式,即车载终端选取一个传输资源后,就会在多个传输周期中持续的使用该资源,从而降低资源重选以及资源冲突的概率。车载终端会在本次传输的控制信息中携带预留下次传输资源的信息,从而使得其他终端可以通过检测该车载终端的控制信息判断这块资源是否被该车载终端预留和使用,达到降低资源冲突的目的。
对于上述两种模式的示例性说明,在V2X技术中,当发送端进行数据发送之后,接收该发送数据的接收端的数量可能不止一个,也就是说,数据传输场景可能是对于发送数据进行组播的场景,在此场景下,如果需要实现基于HARQ机制的数据传输,那么只要有一个接收端没有接收到正确的发送数据,那么发送端就需要进行重传。这对信道资源是一种极大的消耗。
因此,如何能够平衡信道资源利用率和发送数据的正确接收率,是在V2X技术中实现 基于HARQ机制数据传输的重要问题。针对该问题,本发明实施例通过以下实施例进行阐述和说明。
可以理解地,本发明实施例的全部技术方案,不仅适用于车联网***中,也可以适用于其他端到端通信***中,本发明实施例中的所述终端可以为车载终端、手持终端、掌上电脑(PDA,Personal Digital Assistant)、可穿戴式终端等等,本发明实施例中的所述网络可以为NR网络、LTE网络等等。
实施例一
参见图3,其示出了本发明实施例提供的一种数据传输的方法,该方法可以应用于用户设备发送端,该方法可以包括:
S301:基于针对待传输数据的混合自动重传请求HARQ重传的配置信息,决定所述待传输数据的HARQ重传模式;
S302:根据所述HARQ重传模式,将所述待传输数据传输至用户设备接收端。
通过图3所示的技术方案,在用户设备发送端,基于配置信息来决定待传输数据的HARQ重传模式,并根据HARQ重传模式对待传输数据进行传输,从而无需针对所有的待传输数据均采用HARQ重传,避免了信道资源的浪费,平衡信道资源利用率和发送数据的正确接收率。
具体来说,HARQ重传模式可以包括针对待传输数据进行HARQ重传或者,针对待传输数据不进行HARQ重传。基于此,对于图3所示的技术方案,在一种可能的实现方式中,所述基于针对待传输数据的HARQ重传的配置信息,决定所述待传输数据的HARQ重传模式,包括:
接收所述配置信息;
根据配置信息判断所述待传输数据是否需要进行HARQ重传。
对于上述实现方式,配置信息可以是由网络中用户设备发送端以外的网络侧设备向用户设备发送端进行发送,也可以是预先配置在用户设备发送端中。若配置信息由用户设备发送端以外的网络侧设备发送,那么,在具体实施过程中,可以优选为网络协议层的高层设备基于设定的需求信息来确定该配置信息并发送至用户设备发送端,也可以优选为接入网设备基于需要进行HARQ重传的条件来确定该配置信息并发送至用户设备发送端。本实施例对此不做赘述。
需要说明的是,配置信息的具体功能可以用于表征是否进行HARQ重传的判定规则,以使得用户设备发送端能够将所有的待传输数据依据该判定规则进行判定,基于判定结果,用户设备发送端就能够确定是否针对某一个或某一种类的待传输数据进行HARQ重传,同样也就能够确定是否针对某一个或某一种类的待传输数据不进行HARQ重传。
可选地,基于配置信息所表征的判定规则,配置信息可以包括目标业务需要进行HARQ重传的指示,或者,目标地址需要进行HARQ重传的指示;相应来说,上述实现方式中所述根据所述配置信息判断所述待传输数据是否需要进行HARQ重传:
检测所述待传输数据中是否包括目标业务的需要进行HARQ重传的指示或所述目标地址需要进行HARQ重传的指示;
若包括,则确定针对所述待传输数据进行HARQ重传;
否则,则确定针对所述待传输数据不进行HAQR重传。
在上述可选示例中,配置信息所表征的判定规则是基于特定的业务要求所对应的待传输数据的属性信息来进行描述的,举例来说,用户设备发送端在发送待传输数据时,可以在该待传输数据的数据结构中增加一个指示信息字段或字节来指示待传输数据的目标业务或目标地址需要进行HARQ重传。因此,可以检测待传输数据中是否包括目标业务需要进行HARQ重传的指示或所述目标地址需要进行HARQ重传的指示来确定是否针对待传输数据进行HARQ重传。
可选地,基于配置信息所表征的判定规则,所述配置信息也可以包括:目标地址或目标业务需要进行HARQ重传的可靠性描述信息。相应来说,上述实现方式中所述的根据配置信息判断所述待传输数据是否需要进行HARQ重传,包括:
检测所述待传输数据的可靠性要求是否符合所述目标地址或目标业务需要进行HARQ重传的可靠性描述信息;
若符合,则确定针对所述待传输数据进行HARQ重传;
否则,确定针对所述待传输数据不进行HARQ重传。
在上述可选示例中,配置信息所表征的判定规则是基于可靠性要求进行描述,因此,可以检测待传输数据的可靠性要求是否符合目标地址或目标业务需要进行HARQ重传的可靠性描述信息。对于可靠性描述信息来说,具体实施时,可以是待传输数据具体的可靠性要求,例如误码率低于设定的可靠性阈值,传输成功率需高于设定的可靠性阈值等,此时,用户设备发送端就能够为了实现待传输数据针对特定业务或特定目标地址的传输可靠性,来进行HARQ重传。比如,当用户设备发送端所在车辆发生故障进行告警的过程中,由于会对车联网内其他车辆的行驶造成影响,基于此,告警业务的数据传输需要较高的可靠性要求,从而当用户设备发送端的待传输数据为告警信息时,设定该告警业务数据传输的可靠性要求是误码率低于1%,设定的误码率的可靠性阈值为5%,因此,针对告警信息的传输需要进行HARQ重传。再比如,当数据传输的目标作为数据中继节点时,基于该中继节点在车联网数据传输的重要性,针对发送至该中继节点的数据就需要较高的可靠性要求,设定该待传输数据的发送成功率要高于99%,而设定的传输成功率阈值为95%,因此,从而当用户设备发送端将待传输数据发送至该中继节点时,基于该待传输数据的目标地址为该中继节点,从而针对待传输数据需要进行HARQ重传。可以理解地,配置信息所表征的判定规则还可以基于其他业务要求对应的属性信息进行描述,本实施例对此也不做赘述。
可选地,基于配置信息所表征的判定规则,配置信息可以包括:需要进行HARQ重传时对应的网络环境指标阈值。相应来说,上述实现方式中所述根据配置信息判断所述待传输数据是否需要进行HARQ重传,就可以包括:
检测所述待传输数据发送时的网络环境指标值是否超过所述需要进行HARQ重传时对应的网络环境指标阈值;
若超过,则确定针对所述待传输数据进行HARQ重传;
否则,则确定针对所述待传输数据不进行HAQR重传。
在上述可选示例中,配置信息所表征的判定规则是基于网络环境指标来进行描述,这些指标具体可以包括以下任一项或多项:网络速度、同步方式、CBR、PPPP等,上述指标能够从不同的角度和方面来对当前网络环境质量进行评价,可以理解地,当前网络环境质 量较低时,数据传输时会造成较高的误码率,从而在此情况下就需要针对待传输数据进行HARQ重传,以保证数据传输的正确率。同样来说,当上述指标所评价得到当前网络环境质量较高时,数据传输的误码率就会降低,从而无需针对待传输数据进行HARQ重传。
对于本实施例所记载的上述方案,当确定针对所述待传输数据进行HARQ重传后,用户设备发送端会确定所述待传输数据的HARQ传输模式,基于不同的HARQ传输模式,用户设备发送端就需要将HARQ传输模式通知用户设备接收端,从而实现用户设备接收端能够按照接收到的HARQ传输模式正确地接收待传输数据以及待传输数据的HARQ重传数据。基于此,在一种可能的实现方式中,图3所示的技术方案还可以包括:
向所述用户设备接收端发送所述待传输数据的HARQ传输模式。
需要说明的是,所述HARQ传输模式具体可以包括:无需反馈的HARQ重传模式和需要反馈的HARQ重传模式。并且在车联网中,数据发送和接收大多情况下都在车联网内各终端之间进行,因此,所述待传输数据的HARQ传输模式可以通过通知信息进行传输,基于此,所述向所述用户设备接收端发送所述待传输数据的HARQ传输模式,具体可以包括:
通过物理侧行控制信道(PSCCH,Physical Sidelink Control CHannel)和/或物理侧行共享信道(PSSCH,Physical Sidelink Shared CHannel)向所述用户设备接收端发送所述待传输数据的HARQ传输模式。
具体来说,对于PSCCH和/或PSSCH,用户设备发送端可以采用以下任一种方式发送待传输数据的HARQ传输模式:
通过PSCCH和/或PSSCH所承载的内容向所述用户设备接收端发送所述待传输数据的HARQ传输模式;
或者,通过PSCCH和/或PSSCH的时间和/或频率位置向所述用户设备接收端发送所述待传输数据的HARQ传输模式;
或者,通过PSCCH和/或PSSCH的参考信号向所述用户设备接收端发送所述待传输数据的HARQ传输模式。
基于上述具体地HARQ传输模式,在一种可选示例中,所述根据所述HARQ重传模式,将所述待传输数据传输至用户设备接收端,包括:
相应于所述HARQ重传模式为所述无需反馈的HARQ重传模式,无需接收用户设备接收端针对所述待传输数据的反馈信息,直接将所述待传输数据与所述待传输数据的HARQ重传数据按照设定的时间和/或频率资源位置发送至用户设备接收端。
具体来说,在不需要用户设备接收端反馈的情况下进行HARQ重传,那就需要用户设备发送端在发送完待传输数据后进行计时,计时结束后再发送待传输数据的HARQ重传数据。由于用户设备发送端预先可以通过通知信息的形式向用户设备接收端发送具体的HARQ传输模式,该通知信息中还可以包括具体的计时时间。那么,用户设备接收端在接收到用户设备发送端发送的待传输数据后,就可以根据预先获知的计时时间去接收用户设备发送端发送的待传输数据的HARQ重传数据。
基于上述具体地HARQ传输模式,在另一种可选示例中,所述根据所述HARQ重传模式,将所述待传输数据传输至用户设备接收端,包括:
相应于所述HARQ重传模式为所述需要反馈的HARQ重传模式,在发送完成所述待 传输数据后,等待接收所述用户设备接收端发送的反馈信息;所述反馈信息用于指示是否针对所述待传输数据进行HARQ重传;
相应于所述反馈信息指示针对所述待传输数据进行HARQ重传,将所述待传输数据的HARQ重传数据发送至所述用户设备接收端。
具体来说,在需要用户设备接收端反馈的情况下进行HARQ重传,那么用户设备接收端就可以在接收到待传输数据后对其进行错误检测,若检测结果说明用户设备接收端正确接收待传输数据,那么用户设备发送端就无需针对待传输数据进行HARQ重传,此时,用户设备接收端可以不向用户设备发送端发送任何反馈,用户设备发送端在发送完成待传输数据后开始计时,当计时超时前也没有接收到用户设备接收端的反馈信息,那么就说明待传输数据被用户设备接收端正确接收,从而不再发送待传输数据的HARQ重传数据。当计时超时前接收到用户设备接收端的反馈信息,并且反馈信息指示待传输数据接收错误,需要针对所述待传输数据进行HARQ重传,那么就用户设备发送端就会发送待传输数据的HARQ重传数据。
可以理解地,在具体实现时,用户设备接收端也可以针对待传输数据的正确接收向用户设备发送端发送反馈信息,以指示待传输数据的正确接收,用户设备发送端接收到该反馈信息后,不再发送待传输数据的HARQ重传数据。在此前提下,当用户设备发送端在计时超时前没有收到该反馈信息,那就说明待传输数据没有被正确接收,从而用户设备发送端会向用户设备接收端发送待传输数据的HARQ重传数据。
实施例二
基于前述实施例相同的发明构思,参见图4,其示出了本发明实施例提供的一种数据传输的方法,所述方法应用于用户设备接收端,所述方法包括:
S401:接收用户设备发送端发送待传输数据的HARQ传输模式;
S402:基于所述待传输数据的HARQ传输模式,接收所述待传输数据的HARQ重传数据。
可以理解地,针对所述待传输数据的HARQ传输模式,用户设备发送端可以通过通知信息的形式进行发送。
通过图4所示的技术方案,用户设备接收端基于待传输数据的HARQ传输模式来接收所述待传输数据的HARQ重传数据,从而避免了针对所有的待传输数据的HARQ重传数据进行接收,降低了信道资源的浪费,平衡信道资源利用率和发送数据的正确接收率。
对于图4所示的技术方案,在车联网中,数据发送和接收大多情况下都在车联网内各终端之间进行,因此,在一种可能的实现方式中,所述接收用户设备发送端发送的待传输数据的HARQ传输模式,包括:
接收所述用户设备发送端通过物理侧行控制信道PSCCH和/或物理侧行共享信道PSSCH发送的所述待传输数据的HARQ传输模式。
具体来说,对于PSCCH和/或PSSCH,所述接收所述用户设备发送端通过PSCCH和/或PSSCH发送的所述待传输数据的HARQ传输模式,包括:
接收所述用户设备发送端通过PSCCH和/或PSSCH所承载的内容发送的所述待传输数据的HARQ传输模式;
或者,接收所述用户设备发送端通过PSCCH和/或PSSCH的时间和/或频率位置发送 的所述待传输数据的HARQ传输模式;
或者,接收所述用户设备发送端通过PSCCH和/或PSSCH的参考信号发送的所述待传输数据的HARQ传输模式。
对于图4所示的技术方案,在一种可能的实现方式中,所述HARQ传输模式包括:无需反馈的HARQ重传模式和需要反馈的HARQ重传模式。
在上述实现方式中,针对所述HARQ传输模式为无需反馈的HARQ重传模式,优选地,所述基于所述待传输数据的HARQ传输模式,接收所述待传输数据的HARQ重传数据,包括:
相应于所述HARQ传输模式为所述无需反馈的HARQ重传模式,不针对所述待传输数据发送反馈信息,而是按照设定的时间间隔接收由所述用户设备发送端发送的所述待传输数据与所述待传输数据的HARQ重传数据。
具体来说,若用户设备发送端在不需要用户设备接收端反馈的情况下进行HARQ重传,那就用户设备发送端就可以在发送完待传输数据后进行计时,计时结束后再发送待传输数据的HARQ重传数据。而对于用户设备接收端来说,由于用户设备发送端预先通过通知信息向用户设备接收端通知具体的HARQ传输模式,那么该通知信息中还可以包括具体的计时时间。于是,用户设备接收端在接收到用户设备发送端发送的待传输数据后,就可以根据预先获知的计时时间去接收用户设备发送端发送的待传输数据的HARQ重传数据。并且用户设备接收端可以根据接收到的待传输数据以及待传输数据的HARQ重传数据来确定待传输数据的真实数据内容。
在上述实现方式中,针对所述HARQ传输模式为需要反馈的HARQ重传模式,优选地,所述基于待传输数据的HARQ传输模式,接收所述待传输数据的HARQ重传数据,包括:
相应于所述HARQ传输模式为所述需要反馈的HARQ重传模式,针对所述待传输数据发送反馈信息;
相应于所述反馈信息指示针对所述待传输数据进行HARQ重传,接收由所述用户设备发送端所发送的所述待传输数据的HARQ重传数据。
具体来说,基于所述HARQ传输模式为所述需要反馈的HARQ重传模式,用户设备接收端接收到所述用户设备发送端所发送的所述待传输数据后,根据所述待传输数据的接收状态生成反馈信息;其中,所述反馈信息用于指示是否针对所述待传输数据进行HARQ重传;
相应于所述反馈信息指示针对所述待传输数据进行HARQ重传,接收由所述用户设备发送端所发送的所述待传输数据的HARQ重传数据。
详细来说,若用户设备发送端在需要用户设备接收端反馈的情况下进行HARQ重传,那么用户设备接收端就可以在接收到待传输数据后对其进行错误检测,若检测结果说明用户设备接收端正确接收待传输数据,那么用户设备发送端就无需针对待传输数据进行HARQ重传。此时,用户设备接收端可以不向用户设备发送端发送任何反馈信息。对于用户设备发送端来说,在发送完成待传输数据后可以开始计时,当计时超时前也没有接收到用户设备接收端的反馈信息,那么就说明待传输数据被用户设备接收端正确接收,从而不再发送待传输数据的HARQ重传数据。当计时超时前接收到用户设备接收端的反馈信息, 并且反馈信息指示待传输数据接收错误,需要针对所述待传输数据进行HARQ重传,那么就用户设备发送端就会发送待传输数据的HARQ重传数据。
此外,在具体实现时,用户设备接收端也可以针对待传输数据的正确接收向用户设备发送端发送反馈信息,以指示待传输数据的正确接收。从而使得用户设备发送端接收到该反馈信息后,不再发送待传输数据的HARQ重传数据。在此前提下,当用户设备发送端在计时超时前没有收到该反馈信息,那就说明待传输数据没有被正确接收,从而用户设备发送端会向用户设备接收端发送待传输数据的HARQ重传数据。
实施例三
基于前述实施例相同的发明构思,参见图5,其示出了本发明实施例提供的一种数据传输的方法,所述方法应用于网络侧设备,所述方法包括:
S501:向用户设备发送端发送配置信息;其中,所述配置信息用于决定待传输数据的混合自动重传请求HARQ重传模式。
由于用户设备发送端根据该配置信息来判定是否进行HARQ重传,以使得用户设备发送端无需针对所有的待传输数据均采用HARQ重传,避免了信道资源的浪费,平衡信道资源利用率和发送数据的正确接收率。
对于本实施例的技术方案,在具体实现过程中,可以优选为网络协议层的高层设备基于设定的需求信息来确定该配置信息并发送至用户设备发送端,也可以优选为接入网设备基于需要进行HARQ重传的条件来确定该配置信息并发送至用户设备发送端。因此,网络侧设备具体可以是网络协议层的高层设备或者接入网设备。
需要说明的是,由于配置信息可以用来表征是否进行HARQ重传的判定规则,以使得用户设备发送端能够将所有的待传输数据依据该判定规则进行判定。可选地,基于配置信息所表征的判定规则,所述配置信息可以包括:目标业务需要进行HARQ重传的指示,或者,目标地址需要进行HARQ重传的指示。
可选地,配置信息所表征的判定规则是基于可靠性要求进行描述,因此,所述配置信息也可以包括:目标地址或目标业务需要进行HARQ重传的可靠性描述信息。本实施例对此不做赘述。
可选地,基于配置信息所表征的判定规则,配置信息可以包括:需要进行HARQ重传时对应的网络环境指标阈值。
在上述可选示例中,配置信息所表征的判定规则是基于网络环境指标来进行描述,这些指标具体可以包括以下任一项或多项:网络速度、同步方式、CBR、PPPP等,上述指标能够从不同的角度和方面来对当前网络环境质量进行评价,可以理解地,当前网络环境质量较低时,数据传输时会造成较高的误码率,从而在此情况下就需要针对待传输数据进行HARQ重传,以保证数据传输的正确率。同样来说,当上述指标所评价得到当前网络环境质量较高时,数据传输的误码率就会降低,从而无需针对待传输数据进行HARQ重传。
实施例四
基于前述实施例相同的发明构思,参见图6,其示出了本发明实施例提供的一种数据传输的具体流程,该流程可以应用于具有网络侧设备、用户设备接收端和用户设备发送端的网络架构中,该具体流程可以包括:
S601:网络侧设备将针对待传输数据的HARQ重传的配置信息发送至用户设备发送 端;
其中,所述配置信息用于表征进行HARQ重传的判定规则;
具体来说,根据判定规则的所基于的理由不同,在实施过程中,配置信息可以包括:
目标业务需要进行HARQ重传的指示,或者,目标地址需要进行HARQ重传的指示;
或者,目标地址或目标业务需要进行HARQ重传的可靠性描述信息;
或者,需要进行HARQ重传时对应的网络环境指标阈值。
针对上述具体配置信息的描述,参见前述实施例中的相应描述,在此不再赘述。
S602:用户设备发送端基于针对待传输数据的HARQ重传的配置信息,决定所述待传输数据的HARQ重传模式;
具体来说,HARQ重传模式可以包括针对待传输数据进行HARQ重传或者,针对待传输数据不进行HARQ重传。基于此,在本步骤中,用户设备发送端可以检测所述待传输数据是否符合所述判定规则;若符合,则确定针对所述待传输数据进行HARQ重传;否则,确定针对所述待传输数据不进行HARQ重传。
需要说明的是,若确定针对所述待传输数据进行HARQ重传,那么为了使用户设备接收端能够正确地接收待传输数据以及待传输数据的HARQ重传数据,本流程还包括:S603:用户设备发送端向所述用户设备接收端通知所述待传输数据的HARQ传输模式。
具体来说,所述HARQ传输模式具体可以包括:无需反馈的HARQ重传模式和需要反馈的HARQ重传模式。并且在车联网中,数据发送和接收大多情况下都在车联网内各终端之间进行,因此,对于步骤S603,具体可以包括:
用户设备发送端通过物理侧行控制信道PSCCH和/或物理侧行共享信道PSSCH向所述用户设备接收端通知所述待传输数据的HARQ传输模式。
基于上述两种HARQ传输模式,分别如下两种方式进行实现。
相应于所述HARQ重传模式为所述无需反馈的HARQ重传模式,参见图6中虚线框所示的方式一:
S604A:用户设备发送端将所述待传输数据与所述待传输数据的HARQ重传数据按照设定的时间和/或频率资源位置发送至用户设备接收端。
相应来说,用户设备接收端可以按照设定的时间间隔接收由所述用户设备发送端发送的所述待传输数据与所述待传输数据的HARQ重传数据。
相应于所述HARQ传输模式为所述需要反馈的HARQ重传模式,参见图6中点划线框所示的方式二:
S604B:用户设备发送端向用户设备接收端发送待传输数据;
需要说明的是,用户设备发送端在发送完成后,会等待接收所述用户设备接收端发送的反馈信息
S605B:用户设备接收端根据所述待传输数据的接收状态生成反馈信息;其中,所述反馈信息用于指示是否针对所述待传输数据进行HARQ重传;
S606B:用户设备接收端向用户设备发送端发送所述反馈信息;
S607B:相应于所述反馈信息指示针对所述待传输数据进行HARQ重传,用户设备发送端将所述待传输数据的HARQ重传数据发送至所述用户设备接收端。
可以理解地,本实施例中,各步骤的详细阐述可以参照前述实施例一至实施例三,本 实施例对此不再赘述。
实施例五
基于前述实施例相同的发明构思,参见图7A,其示出了本发明实施例提供的一种用户设备发送端70,可以包括:决定部分701和传输部分702;其中,
所述决定部分701,配置为基于针对待传输数据的HARQ重传的配置信息,决定所述待传输数据的HARQ重传模式;
所述传输部分702,配置为根据所述HARQ重传模式,将所述待传输数据传输至用户设备接收端。
在上述方案中,所述决定部分701,配置为:
接收所述配置信息;根据配置信息判断所述待传输数据是否需要进行HARQ重传。
在上述方案中,所述配置信息包括:目标业务需要进行HARQ重传的指示,或者,目标地址需要进行HARQ重传的指示;
相应地,所述决定部分701,配置为:检测所述待传输数据中是否包括目标业务需要进行HARQ重传的指示或所述目标地址需要进行HARQ重传的指示;
若包括,则确定针对所述待传输数据进行HARQ重传;
否则,则确定针对所述待传输数据不进行HAQR重传。
在上述方案中,所述配置信息包括:目标地址或目标业务需要进行HARQ重传的可靠性描述信息。
相应地,所述决定部分701,配置为:检测所述待传输数据的可靠性要求是否符合所述目标地址或目标业务需要进行HARQ重传的可靠性描述信息;
若符合,则确定针对所述待传输数据进行HARQ重传;
否则,确定针对所述待传输数据不进行HARQ重传。
在上述方案中,所述配置信息包括:需要进行HARQ重传时对应的网络环境指标阈值;
相应地,所述决定部分701,配置为:检测所述待传输数据发送时的网络环境指标值是否超过所述需要进行HARQ重传时对应的网络环境指标阈值;
若超过,则确定针对所述待传输数据进行HARQ重传;
否则,则确定针对所述待传输数据不进行HAQR重传。
在上述方案中,参见图7B,所述用户设备发送端70还可以包括:第一接收部分703,配置为向所述用户设备接收端发送所述待传输数据的HARQ传输模式。
在上述方案中,所述第一接收部分703,配置为:
通过物理侧行控制信道PSCCH和/或物理侧行共享信道PSSCH向所述用户设备接收端发送所述待传输数据的HARQ传输模式。
在上述方案中,所述第一接收部分703,配置为:通过PSCCH和/或PSSCH所承载的内容向所述用户设备接收端发送的所述待传输数据的HARQ传输模式;
或者,通过PSCCH和/或PSSCH的时间或频率位置向所述用户设备接收端发送的所述待传输数据的HARQ传输模式;
或者,通过PSCCH和/或PSSCH的参考信号向所述用户设备接收端发送的所述待传输数据的HARQ传输模式。
在上述方案中,所述HARQ传输模式包括:无需反馈的HARQ重传模式和需要反馈 的HARQ重传模式。
在上述方案中,所述传输部分702,配置为:
相应于所述HARQ重传模式为所述无需反馈的HARQ重传模式,无需接收用户设备接收端针对所述待传输数据的反馈信息,直接将所述待传输数据与所述待传输数据的HARQ重传数据按照设定的时间和/或频率资源位置发送至用户设备接收端。
在上述方案中,所述传输部分702,配置为:
相应于所述HARQ重传模式为所述需要反馈的HARQ重传模式,在发送完成所述待传输数据后,等待接收所述用户设备接收端发送的反馈信息;所述反馈信息用于指示是否针对所述待传输数据进行HARQ重传;
相应于所述反馈信息指示针对所述待传输数据进行HARQ重传,将所述待传输数据的HARQ重传数据发送至所述用户设备接收端。
可以理解地,在本实施例中,“部分”可以是部分电路、部分处理器、部分程序或软件等等,当然也可以是单元,还可以是模块也可以是非模块化的。
另外,在本实施例中的各组成部分可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能模块的形式实现。
所述集成的单元如果以软件功能模块的形式实现并非作为独立的产品进行销售或使用时,可以存储在一个计算机可读取存储介质中,基于这样的理解,本实施例的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)或processor(处理器)执行本实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(ROM,Read Only Memory)、随机存取存储器(RAM,Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
因此,本实施例提供了一种计算机存储介质,该计算机存储介质存储有数据传输的程序,所述数据传输的程序被至少一个处理器执行时实现上述实施例一所述的方法的步骤。
基于上述用户设备发送端70以及计算机存储介质,参见图8,其示出了本发明实施例提供的一种用户设备发送端70的具体硬件结构,可以包括:第一网络接口801、第一存储器802和第一处理器803;各个组件通过总线***804耦合在一起。可理解,总线***804用于实现这些组件之间的连接通信。总线***804除包括数据总线之外,还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见,在图8中将各种总线都标为总线***804。其中,第一网络接口801,用于在与其他外部网元之间进行收发信息过程中,信号的接收和发送;
第一存储器802,用于存储能够在第一处理器803上运行的计算机程序;
第一处理器803,用于在运行所述计算机程序时,执行:
基于针对待传输数据的混合自动重传请求HARQ重传的配置信息,决定所述待传输数据的HARQ重传模式;根据所述HARQ重传模式,将待传输数据传输至用户设备接收端。
可以理解,本发明实施例中的第一存储器802可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器 (Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DRRAM)。本文描述的***和方法的第一存储器802旨在包括但不限于这些和任意其它适合类型的存储器。
而第一处理器803可能是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法的各步骤可以通过第一处理器803中的硬件的集成逻辑电路或者软件形式的指令完成。上述的第一处理器803可以是通用处理器、数字信号处理器(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现成可编程门阵列(Field Programmable Gate Array,FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本发明实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本发明实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于第一存储器802,第一处理器803读取第一存储器802中的信息,结合其硬件完成上述方法的步骤。
可以理解的是,本文描述的这些实施例可以用硬件、软件、固件、中间件、微码或其组合来实现。对于硬件实现,处理单元可以实现在一个或多个专用集成电路(Application Specific Integrated Circuits,ASIC)、数字信号处理器(Digital Signal Processing,DSP)、数字信号处理设备(DSP Device,DSPD)、可编程逻辑设备(Programmable Logic Device,PLD)、现场可编程门阵列(Field-Programmable Gate Array,FPGA)、通用处理器、控制器、微控制器、微处理器、用于执行本申请所述功能的其它电子单元或其组合中。
对于软件实现,可通过执行本文所述功能的模块(例如过程、函数等)来实现本文所述的技术。软件代码可存储在存储器中并通过处理器执行。存储器可以在处理器中或在处理器外部实现。
具体来说,用户设备发送端70中的第一处理器803还配置为运行所述计算机程序时,执行前述实施例一中所述的方法步骤,这里不再进行赘述。
实施例六
基于前述实施例相同的发明构思,参见图9,其示出了本发明实施例提供的一种用户设备接收端90的组成,包括:第二接收部分901和第三接收部分902;其中,
所述第二接收部分901,配置为接收用户设备发送端发送的待传输数据的HARQ传输模式;
所述第三接收部分902,配置为基于所述待传输数据的HARQ传输模式,接收所述待 传输数据的HARQ重传数据。
在上述方案中,所述第二接收部分901,配置为:
接收所述用户设备发送端通过物理侧行控制信道PSCCH和/或物理侧行共享信道PSSCH发送的所述待传输数据的HARQ传输模式。
具体来说,所述第二接收部分901,配置为:
接收所述用户设备发送端通过PSCCH和/或PSSCH所承载的内容发送的所述待传输数据的HARQ传输模式;
或者,接收所述用户设备发送端通过PSCCH和/或PSSCH的时间和/或频率位置发送的所述待传输数据的HARQ传输模式;
或者,接收所述用户设备发送端通过PSCCH和/或PSSCH的参考信号发送的所述待传输数据的HARQ传输模式。
在上述方案中,所述HARQ传输模式包括:无需反馈的HARQ重传模式和需要反馈的HARQ重传模式。
在上述方案中,所述第三接收部分902,配置为:
相应于所述HARQ传输模式为所述无需反馈的HARQ重传模式,不针对所述待传输数据发送反馈信息。具体来说,可以按照设定的时间间隔接收由所述用户设备发送端发送的所述待传输数据与所述待传输数据的HARQ重传数据。
在上述方案中,所述第三接收部分902,配置为:
相应于所述HARQ传输模式为所述需要反馈的HARQ重传模式,针对所述待传输数据发送反馈信息;
相应于所述反馈信息指示针对所述待传输数据进行HARQ重传,接收由所述用户设备发送端所发送的所述待传输数据的HARQ重传数据。具体来说,第三接收部分902接收到所述用户设备发送端所发送的所述待传输数据后,根据所述待传输数据的接收状态生成反馈信息;其中,所述反馈信息用于指示是否针对所述待传输数据进行HARQ重传;
相应于所述反馈信息指示针对所述待传输数据进行HARQ重传,接收由所述用户设备发送端所发送的所述待传输数据的HARQ重传数据。
另外,本实施例提供了一种计算机存储介质,该计算机存储介质存储有数据传输的程序,所述数据传输的程序被至少一个处理器执行时实现上述实施例二所述的方法的步骤。针对计算机存储介质的具体阐述,参见实施例五中的说明,在此不再赘述。
基于上述用户设备接收端90以及计算机存储介质,参见图10,其示出了本发明实施例提供的一种用户设备接收端90的具体硬件结构,可以包括:第二网络接口1001、第二存储器1002和第二处理器1003;各个组件通过总线***1004耦合在一起。可理解,总线***1004用于实现这些组件之间的连接通信。总线***1004除包括数据总线之外,还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见,在图10中将各种总线都标为总线***1004。其中,所述第二网络接口1001,用于在与其他外部网元之间进行收发信息过程中,信号的接收和发送;
第二存储器1002,用于存储能在第二处理器1003上运行的计算机程序;
第二处理器1003,用于在运行所述计算机程序时,执行:
接收用户设备发送端发送的待传输数据的HARQ传输模式;
基于所述待传输数据的HARQ传输模式,接收所述待传输数据的HARQ重传数据。
可以理解地,本实施例中用户设备接收端90的具体硬件结构中的组成部分,与实施例五中的相应部分类似,在此不做赘述。
具体来说,用户设备接收端90的第二处理器1003,还配置为运行所述计算机程序时,执行前述实施例二中所述的方法步骤,这里不再进行赘述。
实施例七
基于前述实施例相同的发明构思,参见图11,其示出了本发明实施例提供的一种网络侧设备110的组成,可以包括:发送部分1101,配置为:向用户设备发送端发送配置信息;其中,所述配置信息用于决定待传输数据的混合自动重传请求HARQ重传模式。
在上述方案中,所述配置信息包括:目标业务需要进行HARQ重传的指示,或者,目标地址需要进行HARQ重传的指示。
在上述方案中,所述配置信息包括:需要进行HARQ重传时对应的网络环境指标阈值。
另外,本实施例提供了一种计算机存储介质,该计算机存储介质存储有数据传输的程序,所述数据传输的程序被至少一个处理器执行时实现上述实施例三所述的方法的步骤。针对计算机存储介质的具体阐述,参见实施例五中的说明,在此不再赘述。
基于上述网络侧设备110以及计算机存储介质,参见图12,其示出了本发明实施例提供的一种网络侧设备110的具体硬件结构,可以包括:第三网络接口1201、第三存储器1202和第三处理器1203;各个组件通过总线***1204耦合在一起。可理解,总线***1204用于实现这些组件之间的连接通信。总线***1204除包括数据总线之外,还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见,在图12中将各种总线都标为总线***1204。其中,所述第三网络接口1201,用于在与其他外部网元之间进行收发信息过程中,信号的接收和发送;
第三存储器1202,用于存储能够在第三处理器1203上运行的计算机程序;
第三处理器1203,用于在运行所述计算机程序时,执行:向用户设备发送端发送配置信息;其中,所述配置信息用于决定待传输数据的混合自动重传请求HARQ重传模式。
可选地,所述配置信息包括:目标业务需要进行HARQ重传的指示,或者,目标地址需要进行HARQ重传的指示。
可选地,所述配置信息包括:需要进行HARQ重传时对应的网络环境指标阈值。
基于上述实施例,参见图13,其示出了本发明实施例提供的一种数据传输的***130,可以包括应用于D2D中的终端及网络侧设备,甚至可以应用于V2X技术中终端及网络侧设备;包括第一终端1301和第二终端1302以及网络侧设备1303;其中,第一终端1301为前述任一实施例中所述的用户设备发送端70;第二终端1302为前述任一实施例中所述的用户设备接收端90,网络侧设备为前述任一实施例中所述的网络侧设备110。
以上所述,仅为本发明的较佳实施例而已,并非用于限定本发明的保护范围。
本发明实施例中,基于配置信息来决定待传输数据的HARQ重传模式,并根据HARQ重传模式对待传输数据进行传输,从而无需针对所有的待传输数据均采用HARQ重传,避免了信道资源的浪费,平衡信道资源利用率和发送数据的正确接收率。
Claims (44)
- 一种数据传输的方法,所述方法应用于用户设备发送端,所述方法包括:基于针对待传输数据的混合自动重传请求HARQ重传的配置信息,决定所述待传输数据的HARQ重传模式;根据所述HARQ重传模式,将所述待传输数据传输至用户设备接收端。
- 根据权利要求1所述的方法,其中,所述基于针对待传输数据的HARQ重传的配置信息,决定所述待传输数据的HARQ重传模式,包括:接收所述配置信息;根据所述配置信息判断所述待传输数据是否需要进行HARQ重传。
- 根据权利要求1或2所述的方法,其中,所述配置信息包括:目标业务需要进行HARQ重传的指示,或者,目标地址需要进行HARQ重传的指示。
- 根据权利要求3所述的方法,其中,所述根据配置信息判断所述待传输数据是否需要进行HARQ重传,包括:检测所述待传输数据中是否包括目标业务需要进行HARQ重传的指示或所述目标地址需要进行HARQ重传的指示;若符合,则确定针对所述待传输数据进行HARQ重传;否则,则确定针对所述待传输数据不进行HAQR重传。
- 根据权利要求1或2所述的方法,其中,所述配置信息包括:目标地址或目标业务需要进行HARQ重传的可靠性描述信息。
- 根据权利要求5所述的方法,其中,所述根据配置信息判断所述待传输数据是否需要进行HARQ重传,包括:检测所述待传输数据的可靠性要求是否符合所述目标地址或目标业务需要进行HARQ重传的可靠性描述信息;若符合,则确定针对所述待传输数据进行HARQ重传;否则,确定针对所述待传输数据不进行HARQ重传。
- 根据权利要求1或2所述的方法,其中,所述配置信息包括:需要进行HARQ重传时对应的网络环境指标阈值。
- 根据权利要求7所述的方法,其中,所述根据配置信息判断所述待传输数据是否需要进行HARQ重传,包括:检测所述待传输数据发送时的网络环境指标值是否超过所述需要进行HARQ重传时对应的网络环境指标阈值;若超过,则确定针对所述待传输数据进行HARQ重传;否则,则确定针对所述待传输数据不进行HAQR重传。
- 根据权利要求1所述的方法,其中,所述方法还包括:向所述用户设备接收端发送所述待传输数据的HARQ传输模式。
- 根据权利要求9所述的方法,其中,所述向所述用户设备接收端发送的所述待传输数据的HARQ传输模式,包括:通过物理侧行控制信道PSCCH和/或物理侧行共享信道PSSCH向所述用户设备接 收端发送所述待传输数据的HARQ传输模式。
- 根据权利要求10所述的方法,其中,所述通过物理侧行控制信道PSCCH和/或物理侧行共享信道PSSCH向所述用户设备接收端发送所述待传输数据的HARQ传输模式,包括:通过PSCCH和/或PSSCH所承载的内容向所述用户设备接收端发送所述待传输数据的HARQ传输模式;或者,通过PSCCH和/或PSSCH的时间和/或频率位置向所述用户设备接收端发送所述待传输数据的HARQ传输模式;或者,通过PSCCH和/或PSSCH的参考信号向所述用户设备接收端发送所述待传输数据的HARQ传输模式。
- 根据权利要求9所述的方法,其中,所述HARQ传输模式包括:无需反馈的HARQ重传模式和需要反馈的HARQ重传模式。
- 一种数据传输的方法,所述方法应用于用户设备接收端,所述方法包括:接收用户设备发送端发送的待传输数据的HARQ传输模式;基于所述待传输数据的HARQ传输模式,接收所述待传输数据的HARQ重传数据。
- 根据权利要求13所述的方法,其中,所述接收用户设备发送端发送的待传输数据的HARQ传输模式,包括:接收所述用户设备发送端通过物理侧行控制信道PSCCH和/或物理侧行共享信道PSSCH发送的所述待传输数据的HARQ传输模式。
- 根据权利要求14所述的方法,其中,所述接收所述用户设备发送端通过PSCCH和/或PSSCH发送的所述待传输数据的HARQ传输模式,包括:接收所述用户设备发送端通过PSCCH和/或PSSCH所承载的内容发送的所述待传输数据的HARQ传输模式;或者,接收所述用户设备发送端通过PSCCH和/或PSSCH的时间和/或频率位置发送的所述待传输数据的HARQ传输模式;或者,接收所述用户设备发送端通过PSCCH和/或PSSCH的参考信号发送的所述待传输数据的HARQ传输模式。
- 根据权利要求14所述的方法,其中,所述HARQ传输模式包括:无需反馈的HARQ重传模式和需要反馈的HARQ重传模式。
- 根据权利要求16所述的方法,其中,所述基于所述待传输数据的HARQ传输模式,接收所述待传输数据的HARQ重传数据,包括:相应于所述HARQ传输模式为所述无需反馈的HARQ重传模式,不针对所述待传输数据发送反馈信息。
- 根据权利要求16所述的方法,其中,所述基于所述待传输数据的HARQ传输模式,接收所述待传输数据的HARQ重传数据,包括:相应于所述HARQ传输模式为所述需要反馈的HARQ重传模式,针对所述待传输数据发送反馈信息。
- 根据权利要求18所述的方法,其中,所述方法还包括:相应于所述反馈信息指示针对所述待传输数据进行HARQ重传,接收由所述用户 设备发送端所发送的所述待传输数据的HARQ重传数据。
- 一种数据传输的方法,所述方法应用于网络侧设备,所述方法包括:向用户设备发送端发送配置信息;其中,所述配置信息用于用户设备发送端决定待传输数据的混合自动重传请求HARQ重传模式。
- 根据权利要求20所述的方法,其中,所述配置信息包括:目标业务需要进行HARQ重传的指示,或者,目标地址需要进行HARQ重传的指示。
- 根据权利要求20所述的方法,其中,所述配置信息包括:需要进行HARQ重传时对应的网络环境指标阈值。
- 一种用户设备发送端,包括决定部分和传输部分,其中,所述决定部分,配置为基于针对待传输数据的HARQ重传的配置信息,决定所述待传输数据的HARQ重传模式;所述传输部分,配置为根据所述HARQ重传模式,将所述待传输数据传输至用户设备接收端。
- 根据权利要求23所述的用户设备发送端,其中,所述决定部分,配置为:接收所述配置信息;根据配置信息判断所述待传输数据是否需要进行HARQ重传。
- 根据权利要求23或24所述的用户设备发送端,其中,所述配置信息包括:目标业务需要进行HARQ重传的指示,或者,目标地址需要进行HARQ重传的指示;相应地,所述决定部分,配置为:检测所述待传输数据中是否包括目标业务的需要进行HARQ重传的指示或所述目标地址需要进行HARQ重传的指示;若包括,则确定针对所述待传输数据进行HARQ重传;否则,则确定针对所述待传输数据不进行HAQR重传。
- 根据权利要求23或24所述的用户设备发送端,其中,所述配置信息包括:目标地址或目标业务需要进行HARQ重传的可靠性描述信息。相应地,所述决定部分,配置为:检测所述待传输数据的可靠性要求是否符合所述目标地址或目标业务需要进行HARQ重传的可靠性描述信息;若符合,则确定针对所述待传输数据进行HARQ重传;否则,确定针对所述待传输数据不进行HARQ重传。
- 根据权利要求23或24所述的用户设备发送端,其中,所述配置信息包括:需要进行HARQ重传时对应的网络环境指标阈值;相应地,所述决定部分,配置为:检测所述待传输数据发送时的网络环境指标值是否超过所述需要进行HARQ重传时对应的网络环境指标阈值;若超过,则确定针对所述待传输数据进行HARQ重传;否则,则确定针对所述待传输数据不进行HAQR重传。
- 根据权利要求23所述的用户设备发送端,其中,所述用户设备发送端还包括:第一接收部分,配置为向所述用户设备接收端发送所述待传输数据的HARQ传输模式。
- 根据权利要求28所述的用户设备发送端,其中,所述第一接收部分,配置为:通过物理侧行控制信道PSCCH和/或物理侧行共享信道PSSCH向所述用户设备接收端发送所述待传输数据的HARQ传输模式。
- 根据权利要求29所述的数据段发送设备,其中,所述第一接收部分,配置为:通过PSCCH和/或PSSCH所承载的内容向所述用户设备接收端发送的所述待传输数据的HARQ传输模式;或者,通过PSCCH和/或PSSCH的时间和/或频率位置向所述用户设备接收端发送的所述待传输数据的HARQ传输模式;或者,通过PSCCH和/或PSSCH的参考信号向所述用户设备接收端发送的所述待传输数据的HARQ传输模式。
- 根据权利要求28所述的用户设备发送端,其中,所述HARQ传输模式包括:无需反馈的HARQ重传模式和需要反馈的HARQ重传模式。
- 一种用户设备接收端,包括:第二接收部分和第三接收部分;其中,所述第二接收部分,配置为接收用户设备发送端发送的待传输数据的HARQ传输模式;所述第三接收部分,配置为基于所述待传输数据的HARQ传输模式,接收所述待传输数据的HARQ重传数据。
- 根据权利要求32所述的用户设备接收端,其中,所述第二接收部分,配置为:接收所述用户设备发送端通过物理侧行控制信道PSCCH和/或物理侧行共享信道PSSCH发送的所述待传输数据的HARQ传输模式。
- 根据权利要求33所述的用户设备接收端,其中,所述第二接收部分,配置为:接收所述用户设备发送端通过PSCCH和/或PSSCH所承载的内容发送的所述待传输数据的HARQ传输模式;或者,接收所述用户设备发送端通过PSCCH和/或PSSCH的时间和/或频率位置发送的所述待传输数据的HARQ传输模式;或者,接收所述用户设备发送端通过PSCCH和/或PSSCH的参考信号发送的所述待传输数据的HARQ传输模式。
- 根据权利要求33所述的用户设备接收端,其中,所述HARQ传输模式包括:无需反馈的HARQ重传模式和需要反馈的HARQ重传模式。
- 根据权利要求35所述的用户设备接收端,其中,所述第三接收部分,配置为:相应于所述HARQ传输模式为所述无需反馈的HARQ重传模式,不针对所述待传输数据发送反馈信息。
- 根据权利要求35所述的用户设备接收端,其中,所述第三接收部分,配置为:相应于所述HARQ传输模式为所述需要反馈的HARQ重传模式,针对所述待传输数据发送反馈信息。
- 根据权利要求37所述的用户设备接收端,其中,所述第三接收部分,还配置为:相应于所述反馈信息指示针对所述待传输数据进行HARQ重传,接收由所述用户设备发送端所发送的所述待传输数据的HARQ重传数据。
- 一种网络侧设备,包括:发送部分,配置为:向用户设备发送端发送配置信息; 其中,所述配置信息用于决定待传输数据的混合自动重传请求HARQ重传模式。
- 一种用户设备发送端,包括:第一网络接口,第一存储器和第一处理器;其中,所述第一网络接口,用于在与其他外部网元之间进行收发信息过程中,信号的接收和发送;所述第一存储器,用于存储能够在所述第一处理器上运行的计算机程序;所述第一处理器,用于在运行所述计算机程序时,执行权利要求1至12中任一项所述方法的步骤。
- 一种用户设备接收端,包括:第二网络接口、第二存储器和第二处理器;其中,所述第二网络接口,用于在与其他外部网元之间进行收发信息过程中,信号的接收和发送;所述第二存储器,用于存储能够在第二处理器上运行的计算机程序;所述第二处理器,用于在运行所述计算机程序时,执行权利要求13至19中任一项所述方法的步骤。
- 一种网络侧设备,包括:第三网络接口、第三存储器和第三处理器;其中,所述第三网络接口,用于在与其他外部网元之间进行收发信息过程中,信号的接收和发送;所述第三存储器,用于存储能够在第三处理器上运行的计算机程序;所述第三处理器,用于在运行所述计算机程序时,执行权利要求20至22中任一项所述方法的步骤。
- 一种计算机存储介质,所述计算机存储介质存储有数据传输的程序,所述数据传输的程序被至少一个处理器执行时实现权利要求1至12中任一项或权利要求13至19中任一项或权利要求20至22中任一项所述的方法的步骤。
- 一种数据传输的***,应用于设备到设备D2D中的终端及网络车侧设备;包括第一终端、第二终端和网络侧设备;其中,所述第一终端为权利要求23至31以及权利要求40中任一项所述的用户设备发送端;所述第二终端为权利要求32至38以及权利要求41中任一项所述的用户设备接收端;所述网络侧设备为权利要求39以及42中任一项所述的网络侧设备。
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CN112054883A (zh) | 2020-12-08 |
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EP3734881B1 (en) | 2023-01-25 |
JP2021513266A (ja) | 2021-05-20 |
US11804928B2 (en) | 2023-10-31 |
KR20200118434A (ko) | 2020-10-15 |
AU2018408173A1 (en) | 2020-08-27 |
EP3734881A4 (en) | 2021-03-10 |
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