Method for determining data transmission mode, network device and computer storage medium

Abstract

The application discloses a data transmission mode determination method, network equipment and computer storage medium, wherein the method comprises the following steps: acquiring input parameters; wherein the input parameters comprise transmission related information reported by a terminal device and / or related information on a network side; determining a data transmission mode for the terminal device based on the input parameters; and sending the data transmission mode to the terminal device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of information processing, and in particular to a data transmission mode determination method, a network device and a computer storage medium. BACKGROUND

[0002] Currently, with the pursuit of rate, delay, high mobility, energy efficiency and the diversity and complexity of services in future life, the 3GPP international standard organization has begun to develop 5G. For low latency and high reliability communication (URLLC), many mechanisms have been developed in the 5G standard to ensure reliable transmission, so effective dynamic change of UE data transmission form is of great significance to improve system capacity and consider data transmission reliability. SUMMARY

[0003] To solve the above technical problems, the embodiments of the present application provide a data transmission mode determination method, a network device and a computer storage medium.

[0004] The data transmission mode determination method provided by the embodiments of the present application is applied to a network device, and includes:

[0005] Obtaining input parameters; wherein the input parameters include transmission related information reported by a terminal device and / or related information on a network side;

[0006] Determining a data transmission mode for the terminal device based on the input parameters;

[0007] Sending the data transmission mode to the terminal device.

[0008] The network device provided by the embodiments of the present application includes:

[0009] A communication unit obtains input parameters; wherein the input parameters include transmission related information reported by a terminal device and / or related information on a network side; and sends the data transmission mode to the terminal device;

[0010] A processing unit determines a data transmission mode for the terminal device based on the input parameters.

[0011] The embodiments of the present application also provide a network device, which includes a processor and a memory for storing a computer program capable of running on the processor,

[0012] Wherein, when the processor runs the computer program, the steps of the above method are executed.

[0013] The embodiments of the present application also provide a computer storage medium, which stores computer executable instructions, and the computer executable instructions are executed to realize the above method steps.

[0014] The technical scheme of the embodiment of the present application can determine the data transmission mode for the terminal device according to the parameters reported by the terminal device and / or the related information on the network side, so as to improve the system capacity while taking into account the data transmission reliability. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A data transmission mode determination method flowchart provided by the embodiment of the present application;

[0016] Figure 2-1 A data structure diagram provided by the embodiment of the present application;

[0017] Figure 2-2 A copy transmission diagram provided by the embodiment of the present application Figure 1 ;

[0018] Figure 2-3 A copy transmission diagram 2 provided by the embodiment of the present application;

[0019] Figure 3 A network device composition structure diagram provided by the embodiment of the present application;

[0020] Figure 4 A hardware architecture diagram provided by the embodiment of the present application.

[0021] DETAILED DESCRIPTION

[0022] In order to be able to understand the features and technical content of the embodiments of the present application more thoroughly, the implementation of the embodiments of the present application will be described in detail below with reference to the accompanying drawings, which are only used for reference and do not limit the embodiments of the present application.

[0023] Embodiment one,

[0024] The embodiment of the present application provides a data transmission mode determination method, which is applied to a network device, such as a base station, and comprises the following steps: Figure 1 As shown in the figure, the steps include:

[0025] Step 101: Obtain input parameters; wherein the input parameters include transmission related information reported by the terminal device and / or related information on the network side;

[0026] Step 102: Determine the data transmission mode for the terminal device based on the input parameters;

[0027] Step 103: Send the data transmission mode to the terminal device.

[0028] Here, the network device can be a base station or other device on the network side, as long as it can select and issue the transmission mode.

[0029] The input parameters can include actively reported content, and / or can also include relevant information detected or directly obtained by the network side.

[0030] Specifically, the transmission-related information reported by the terminal device includes at least one of the following:

[0031] The measurement value of the terminal device for the channel; and data transmission mode indication information reported by the terminal device.

[0032] The relevant information of the network side includes at least one of the following:

[0033] Quality of service (QOS) requirement of the terminal device; uplink channel condition measured by the network side; error rate of data reception statistically obtained by the network side; and load information of the network side.

[0034] The method for determining the data transmission mode for the terminal device based on the input parameters can be determined by one of the aforementioned multiple input parameters, or can be determined by a combination of multiple input parameters. The following describes the multiple parameters:

[0035] The measurement value of the terminal device for the channel can be RSRP, RSRQ, SIR, SINR, or CSI. The measurement value can be reported through PUCCH, PUSCH, or RRC signaling.

[0036] The data transmission mode indication information reported by the terminal device: the UE selects a data transmission mode according to channel measurement. The network side is indicated through MAC CE mode.

[0037] The method for using the aforementioned two parameters can be that the terminal device only reports one parameter, and then the network device determines which data transmission mode to use according to the measurement value of the channel. For example, when the signal-to-noise ratio of the channel is high, it indicates that the channel quality is good, and then the link exchange mode or the link aggregation mode can be used; when the signal-to-noise ratio of the channel is low, it indicates that the channel quality is poor, and then the data packet duplication mode can be used for data transmission.

[0038] When the terminal device selects the data transmission mode, the terminal device can directly report the data transmission mode indication information, so that the network device can determine the data transmission mode for the terminal device based on the indication information.

[0039] Further,

[0040] The uplink channel condition measured by the network side, for example, the SINR of the uplink channel.

[0041] The error rate of data reception obtained by the network side statistics, which can specifically include the block error rate (BLER) or bit error rate (BER) of data reception obtained by the network side statistics. When the parameter is used for data transmission mode selection, the following processing can be performed: if the BLER or BER is very low, the link aggregation mode or the link switching mode can be selected; if the BLER or BER is very high, the packet duplication mode can be selected.

[0042] The network side load: if the network load on one side is heavy, the link switching can be selected.

[0043] The quality of service (QOS) requirement of the terminal device: according to the demand of UE QOS for rate and reliability and the flexible change of channel condition, the data transmission mode is changed to meet the UE QOS requirement.

[0044] The foregoing several parameters of the network side can be used alone or simultaneously; for example, the processing mode of using the network side load alone and using the error rate of data reception of the network side alone has been provided before, and will not be repeated here. The mode of using the QOS of UE alone can be based on the condition of meeting the QOS of UE to select the data transmission mode, for example, based on the condition of QOS to determine to use the link switching mode or the link aggregation mode, or based on the condition to select the packet duplication mode. When multiple parameters are used simultaneously, the intersection of the modes selected by the two parameters can be combined; for example, based on the error rate of data reception of the network side to determine that the link aggregation mode and the link switching mode can be selected, and then based on the QOS to determine that only the link switching mode can be selected, so the link switching mode is selected as the data transmission mode of UE.

[0045] Of course, the terminal device reported parameters can also be combined to determine the transmission mode, for example, the terminal device reported parameters and the related parameters of the network side are combined to determine, assuming that the terminal device reports the measurement value of the channel, and the related parameters of the network side are the error rate of data reception; then the measurement value of the channel can be combined to determine whether a certain data transmission mode can be determined, if two or more data transmission modes are determined, the error rate of data reception can be combined to determine whether the terminal device is in which one of the two or more data transmission modes.

[0046] It can also be understood that in the scenario of combining multiple parameters for judgment, different parameters can also be set with priority, for example, the channel measurement value of the terminal device and the indication information of the data transmission mode of the terminal device can be set with the highest priority, followed by the uplink channel condition detected by the network side and the data error rate detected by the network side, and the QOS of the terminal device can be set with lower priority. That is, when multiple parameters are combined for judgment, if the measurement value is received, the measurement value is used to determine the data transmission mode first. Of course, the aforementioned priority setting is only an example, and other priority orders can be set in practice, but this embodiment will not be enumerated. The combination of multiple parameters and different priority settings are within the scope of the scenarios provided in the present embodiment.

[0047] The network side issues a command to the UE to indicate which data transmission mode the UE adopts. The data transmission mode is sent to the terminal device, including the following:

[0048] Method one, the command containing the data transmission mode is sent to the terminal device in the form of medium access control MAC layer control unit CE.

[0049] Method two, the command containing the data transmission mode is sent to the terminal device in the form of physical downlink control channel command.

[0050] Method three, the command containing the data transmission mode is sent to the terminal device in the form of radio resource control RRC signaling.

[0051] Further, the data transmission mode command includes: the bearer information for changing the data transmission mode, and the data transmission mode.

[0052] If it is in the form of MAC CE, a corresponding logical channel ID, LCID, is defined for the new MAC CE. The MAC CE contains two information, one is the bearer information of the command changing the data transmission mode, the identification (ID) of the data bearer DRB between the terminal and the base station, or the identification (ID) of the logical channel corresponding to the bearer (such as Figure 2-1 The other is the data transmission form, through which it can be indicated which mode of Link aggregation or Link switching or Packet duplication is adopted; the specific data transmission form can be Figure 2-1The Flag bit in the table can be 2 bits, assuming that the link aggregation mode can be 00, the link switching mode can be 01, and the packet duplication mode can be 10. If there are other modes, they can be set to 11. Of course, the modes represented by the aforementioned 2 bits are only examples, and other settings can also exist, but they will not be enumerated here.

[0053] If it is in the form of PDCCH order / RRC signaling, the PDCCH order / RRC signaling contains two pieces of information, one is the bearer information of the command changing the data transmission mode, DRB ID or the logical channel ID corresponding to the bearer. One is the data transmission form, link aggregation or link switching or packet duplication.

[0054] The foregoing provided processing mode can also be applicable to the CA (carrier aggregation) scenario, and when applicable to the CA scenario, the difference from the foregoing is that the data transmission mode only includes two modes of carrier aggregation (CA) or packet duplication (Packet duplication).

[0055] For low latency and high reliability communication (URLLC), many mechanisms have been developed in 5G standard research to ensure reliable transmission, such as dual-link DC or carrier aggregation CA scenario packet data convergence protocol (PDCP, Packet Data Convergence Protocol) duplication. For example, Figure 2-2 and Figure 2-3 respectively show the PDCP duplication in the DC scenario and the PDCP duplication in the CA scenario: a PDCP layer generates a PDCP protocol data unit (PDU, Protocol Data Unit), which is transmitted on two RLC (Radio Link Control, Radio Link Layer Control Protocol) respectively, and then encapsulated in different TBs in the MAC (Media Access Control, Media Access Control Layer) of the master cell group (MCG, Master cell group) and the secondary cell group (SCG, secondary cell group), to improve the reliability of PDCP PDU transmission. Regarding Figure 2-2 and Figure 2-3The difference is that the data can be transmitted on two MAC layers respectively, or on the same MAC. However, the data transmission reliability is at the expense of wireless resources and reduces the system throughput. Therefore, when the signal quality is good, only one data packet is transmitted, and the reliability of data transmission can be ensured by relying on HARQ transmission.

[0056] For Figure 2-2 And Figure 2-3 The architecture shown in the figure can perform three forms of data transmission: Link aggregation: the purpose is to improve throughput, two legs are activated at the same time for transmission of different data packets. Link switching: the purpose is to find the best link for data transmission, two legs are activated at different times, and the one with the best signal quality is used for data transmission, for example, in EN-DC, LTE is used as a backup for NR link. Packet duplication: the main purpose is to provide reliability, two legs are activated at the same time for transmission of the same data packet.

[0057] It can be seen that by adopting the above scheme, the data transmission mode for the terminal device can be determined according to the parameters reported by the terminal device and / or the related information on the network side, so as to improve the system capacity and at the same time consider the data transmission reliability.

[0058] Embodiment two,

[0059] The embodiment of the application provides a network device, such as Figure 3 As shown in the figure, comprising:

[0060] The communication unit 31 acquires the input parameter; wherein the input parameter includes the transmission related information reported by the terminal device, and / or the related information on the network side; and sends the data transmission mode to the terminal device;

[0061] The processing unit 32 determines the data transmission mode for the terminal device based on the input parameter.

[0062] Here, the network device can be a base station or other device on the network side, as long as it can select and issue the transmission mode.

[0063] The foregoing input parameter can include actively reported content, and / or can also include related information detected or directly obtained by the network side.

[0064] Specifically, the transmission related information reported by the terminal device includes at least one of the following:

[0065] The terminal device reports a measurement value for a channel; and the terminal device reports data transmission mode indication information.

[0066] The network side-related information includes at least one of the following:

[0067] The terminal device's quality of service (QOS) requirement; the network side's measured uplink channel condition; the network side's statistically obtained data reception error rate; and the network side's load information.

[0068] The method for determining the data transmission mode for the terminal device based on the input parameters can be determined by one of the aforementioned multiple input parameters, or can be determined by a combination of multiple input parameters. The following describes the aforementioned multiple parameters:

[0069] The terminal device reports a measurement value for a channel: RSRP, RSRQ, SIR, SINR, or CSI. The measurement value can be reported via PUCCH, PUSCH, or RRC signaling.

[0070] The terminal device reports data transmission mode indication information: the UE selects a data transmission mode based on channel measurement. The UE reports the data transmission mode to the network side via MAC CE.

[0071] The aforementioned two parameters can be used as follows: the terminal device reports only one of the two parameters, and the network device determines the data transmission mode based on the reported channel measurement value. For example, when the channel signal-to-noise ratio is high, the channel quality is good, and the link switching mode or the link aggregation mode can be used. When the channel signal-to-noise ratio is low, the channel quality is poor, and the data packet duplication mode can be used.

[0072] When the terminal device selects the data transmission mode, the terminal device can report data transmission mode indication information, so that the network device can determine the data transmission mode for the terminal device based on the indication information.

[0073] Further,

[0074] The network side's measured uplink channel condition, such as the measured SINR of the uplink channel.

[0075] The error rate of data reception obtained by the network side statistics; can specifically include: the block error rate (BLER) or bit error rate (BER) of data reception obtained by the network side statistics. When the parameter is used for data transmission mode selection, the following processing can be performed: if the BLER or BER is very low, the link aggregation mode or the link switching mode can be selected; if the BLER or BER is very high, the packet duplication mode can be selected.

[0076] Network side load: if the load of a certain side network is heavy, the link switching mode can be selected.

[0077] The quality of service (QOS) requirement of the terminal device: according to the demand of UE QOS for rate and reliability and the flexible change of channel conditions, the data transmission mode is changed to meet the UE QOS requirement.

[0078] The foregoing several parameters of the network side can be used alone or simultaneously; for example, the processing mode of using the load of the network side alone and using the error rate of data reception of the network side alone has been provided before, and will not be repeated here. The mode of using the QOS of the UE alone can be based on the condition of meeting the QOS of the UE to select the data transmission mode, for example, based on the condition of the QOS to determine to use the link switching mode or the link aggregation mode, or based on the condition to select the packet duplication mode. When multiple parameters are used simultaneously, the intersection of the modes selected by the two parameters can be combined; for example, based on the error rate of data reception of the network side to determine that the link aggregation mode and the link switching mode can be selected, and then based on the QOS to determine that only the link switching mode can be selected, so the link switching mode is selected as the data transmission mode of the UE

[0079] Of course, the terminal device reported parameters can also be combined to determine the transmission mode, for example, the terminal device reported parameters and the related parameters of the network side are combined to determine, assuming that the terminal device reports the measurement value of the channel, and the related parameters of the network side are the error rate of data reception; then the measurement value of the channel can be combined to determine whether a certain data transmission mode can be determined, if two or more data transmission modes are determined, the error rate of data reception can be combined to determine whether the terminal device is in which one of the two or more data transmission modes.

[0080] It can also be understood that in the scenario of combining multiple parameters for judgment, different parameters can also be set with priority, for example, the channel measurement value of the terminal device and the indication information of the data transmission mode of the terminal device can be set with the highest priority, followed by the uplink channel condition detected by the network side and the data error rate detected by the network side, and the QOS of the terminal device can be set with lower priority. That is, when multiple parameters are combined for judgment, if the measurement value is received, the measurement value is used to determine the data transmission mode first. Of course, the foregoing priority setting is only an example, and other priority orders can be set in practice, but the present embodiment does not perform exhaustive enumeration. The combination of multiple parameters and different priority settings are within the scope of the scenarios provided in the present embodiment.

[0081] The network side issues a command to the UE to indicate which data transmission mode the UE adopts. The sending of the data transmission mode to the terminal device includes the following:

[0082] Method one, the communication unit 31 sends the command containing the data transmission mode to the terminal device in the form of a medium access control (MAC) layer control element (CE).

[0083] Method two, the communication unit 31 sends the command containing the data transmission mode to the terminal device in the form of a physical downlink control channel command.

[0084] Method three, the communication unit 31 sends the command containing the data transmission mode to the terminal device in the form of a radio resource control (RRC) signaling.

[0085] Further, the command of the data transmission mode includes: the bearer information for changing the data transmission mode, and the data transmission mode.

[0086] If it is in the form of MAC CE, a corresponding logical channel ID (LCID) is defined for the new MAC CE. The MAC CE contains two pieces of information, one is the bearer information for changing the data transmission mode, the identification (ID) of the data bearer (DRB) between the terminal and the base station, or the identification (ID) of the logical channel corresponding to the bearer (as shown in Figure 2-1 The other is the data transmission mode, through which it can be indicated which mode of link aggregation or link switching or packet duplication is adopted; the specific data transmission mode can be Figure 2-1The Flag bit in the message can be 2 bits, assuming that the link aggregation mode can be 00, the link switching mode can be 01, and the packet duplication mode can be 10. If there are other modes, 11 can be set. Of course, the modes represented by the aforementioned 2 bits are only examples, and other settings can also exist, but they will not be enumerated here.

[0087] If it is in the form of PDCCH order / RRC signaling, two pieces of information are included in the PDCCH order / RRC signaling. One is the bearer information of the command changing the data transmission mode, DRB ID or the logical channel ID corresponding to the bearer. The other is the data transmission form, link aggregation or link switching or packet duplication.

[0088] The foregoing processing manner can also be applicable to the CA (carrier aggregation) scenario. When applicable to the CA scenario, the difference from the foregoing is that the data transmission mode only includes two modes, carrier aggregation (CA) or packet duplication (packet duplication).

[0089] As can be seen, by using the foregoing scheme, the data transmission mode for the terminal device can be determined according to the parameters reported by the terminal device and / or the related information on the network side, so as to achieve the purpose of improving the system capacity while taking into account the data transmission reliability.

[0090] The present application also provides a hardware composition architecture of a network device, as shown in Figure 4 The network device includes at least one processor 401, a memory 402, and at least one network interface 403. The various components are coupled together through a bus system 404. It can be understood that the bus system 404 is used to realize the connection and communication between the components. In addition to including a data bus, the bus system 404 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, all the buses are marked as the bus system 404 in Figure 4 .

[0091] It can be understood that the memory 402 in the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories.

[0092] In some corresponding manners, the memory 402 stores the following elements, executable modules or data structures, or a subset of them, or an expanded set of them:

[0093] An operating system 4021 and an application program 4022.

[0094] The processor 401 is configured to perform all the method steps of Embodiment One, which will not be repeated here.

[0095] The computer storage medium provided in the present application stores computer executable instructions, which are executed to implement the method steps of Embodiment One, which will not be repeated here.

[0096] The device described above in the embodiments of the present application can be realized in the form of software function modules and sold or used as independent products, and can also be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the embodiments of the present application can be embodied in the form of software products, and the computer software product is stored in a storage medium, including a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the methods described in the embodiments of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM, Read Only Memory), a magnetic disk or an optical disk, and various media that can store program codes. Thus, the embodiments of the present application are not limited to any specific combination of hardware and software.

[0097] Correspondingly, the embodiments of the present application also provide a computer storage medium, which stores a computer program configured to execute the data scheduling method of the embodiments of the present application.

[0098] Although the preferred embodiments of the present application have been disclosed for exemplary purposes, those skilled in the art will realize that various modifications, additions and substitutions are possible, therefore, the scope of the present application should not be limited to the above-described embodiments.

Claims

1. A method for determining a data transmission mode, applied to a network device, comprising: Obtain input parameters; wherein, the input parameters include data transmission mode indication information reported by the terminal device through the CE mode of the MAC layer control unit and relevant information on the network side, wherein the relevant information on the network side includes the QoS requirements of the terminal device and the data reception error rate obtained by the network side. Based on the input parameters, a data transmission mode for the terminal device is determined; Send the data transmission mode to the terminal device; The step of determining the data transmission mode for the terminal device based on the input parameters includes: Based on the QoS requirements of the terminal device for rate and reliability, channel conditions, the data reception error rate obtained from the network side statistics, and the data transmission mode indication information reported by the terminal device, it is determined whether to adopt link switching mode, link aggregation mode, or packet copying mode.

2. The method according to claim 1, wherein, Sending the data transmission mode to the terminal device includes: The command containing the data transmission mode is sent to the terminal device via MAC CE.

3. The method according to claim 1, wherein, Sending the data transmission mode to the terminal device includes: Commands containing the data transmission mode are sent to the terminal device via the physical downlink control channel.

4. The method according to claim 1, wherein, Sending the data transmission mode to the terminal device includes: The command containing the data transmission mode is sent to the terminal device in the form of Radio Resource Control (RRC) signaling.

5. The method according to any one of claims 2-4, wherein, The commands for the data transmission mode include: The information carried by the data transmission mode is used to change the data transmission mode, as well as the data transmission mode itself.

6. The method according to claim 1, wherein, The input parameters also include: The measurement values ​​for the channel reported by the terminal device.

7. The method according to claim 1, wherein, The relevant information on the network side also includes at least one of the following: Uplink channel conditions measured on the network side; Network load information.

8. A network device, comprising: The communication unit acquires input parameters, including data transmission mode indication information reported by the terminal device through the Media Access Control (MAC) layer control unit in CE mode and relevant information from the network side. The relevant information from the network side includes the terminal device's Quality of Service (QoS) requirements and the data reception error rate obtained from network side statistics. The unit also sends the data transmission mode to the terminal device. The processing unit determines the data transmission mode for the terminal device based on the input parameters. The processing unit is used to determine whether to use link switching mode, link aggregation mode, or packet copying mode based on the QoS requirements of the terminal device for rate and reliability, channel conditions, the data reception error rate obtained by the network side, and the data transmission mode indication information reported by the terminal device.

9. The network device according to claim 8, wherein, The communication unit sends commands containing the data transmission mode to the terminal device via MAC CE.

10. The network device according to claim 8, wherein, The communication unit sends commands containing the data transmission mode to the terminal device via commands from the physical downlink control channel.

11. The network device according to claim 8, wherein, The communication unit sends a command containing the data transmission mode to the terminal device via Radio Resource Control (RRC) signaling.

12. The network device according to any one of claims 9-11, wherein, The commands for the data transmission mode include: The information carried by the data transmission mode is used to change the data transmission mode, as well as the data transmission mode itself.

13. The network device according to claim 8, wherein, The input parameters also include The measurement values ​​for the channel reported by the terminal device.

14. The network device according to claim 8, wherein, The relevant information on the network side also includes at least one of the following: Uplink channel conditions measured on the network side; Network load information.

15. A network device, comprising: The processor and the memory used to store computer programs that can run on the processor. When the processor is used to run the computer program, it performs the steps of the method according to any one of claims 1-7.

16. A computer storage medium storing computer-executable instructions, which, when executed, implement the steps of the method according to any one of claims 1-7.

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