WO2023093618A1 - 数据传输方法、装置、电子设备和计算机存储介质 - Google Patents

数据传输方法、装置、电子设备和计算机存储介质 Download PDF

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WO2023093618A1
WO2023093618A1 PCT/CN2022/132688 CN2022132688W WO2023093618A1 WO 2023093618 A1 WO2023093618 A1 WO 2023093618A1 CN 2022132688 W CN2022132688 W CN 2022132688W WO 2023093618 A1 WO2023093618 A1 WO 2023093618A1
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Prior art keywords
compression ratio
data
bler
retransmitted data
target compression
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PCT/CN2022/132688
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English (en)
French (fr)
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宫腾
姚春峰
程明泉
史尚奇
付瑞颖
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中兴通讯股份有限公司
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Publication of WO2023093618A1 publication Critical patent/WO2023093618A1/zh

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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
    • H04L1/1607—Details of the supervisory signal
    • 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
    • H04L1/1806—Go-back-N protocols
    • 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
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/04—Error control

Definitions

  • the embodiments of the present application relate to the field of wireless communication technologies, and in particular, to a data transmission method, device, electronic equipment, and computer storage medium.
  • the retransmission of erroneous data is mainly handled by the Hybrid Automatic Repeat Quest (HARQ) mechanism of the Medium Access Control (MAC) layer.
  • HARQ Hybrid Automatic Repeat Quest
  • MAC Medium Access Control
  • the number of resource blocks (Resource Block, RB) used for the retransmission data is consistent with that of the initial data transmission. system throughput.
  • the main purpose of the embodiments of the present application is to provide a data transmission method, device, electronic equipment and computer storage medium, so that when data is retransmitted, the waste of retransmission resources is greatly reduced, and the throughput of the system is improved.
  • an embodiment of the present application provides a data transmission method, including: periodically counting the block error rate BLER of the retransmitted data; A target compression ratio; if the transmission of the first transmission data fails, obtain the target compression ratio; transmit the retransmission data according to the target compression ratio.
  • the embodiment of the present application also provides a data transmission device, including: a statistics module, used to periodically count the block error rate BLER of the retransmitted data; BLER, to determine the target compression ratio of the retransmitted data in this cycle; an acquisition module, used to acquire the target compression ratio in the case of failure of the first transmission data transmission; a transmission module, used to transmit the target compression ratio according to the target compression ratio Retransmit data.
  • a statistics module used to periodically count the block error rate BLER of the retransmitted data
  • BLER to determine the target compression ratio of the retransmitted data in this cycle
  • an acquisition module used to acquire the target compression ratio in the case of failure of the first transmission data transmission
  • a transmission module used to transmit the target compression ratio according to the target compression ratio Retransmit data.
  • an embodiment of the present application further provides an electronic device, including: at least one processor; and a memory connected to the at least one processor in communication; wherein, the memory stores information that can be used by the Instructions executed by at least one processor, the instructions are executed by the at least one processor, so that the at least one processor can execute the above data transmission method.
  • the embodiment of the present application further provides a computer-readable storage medium storing a computer program, and implementing the above data transmission method when the computer program is executed by a processor.
  • the data transmission method proposed in this application by periodically counting the block error rate (Block Error Rate, BLER) of the retransmitted data, in order to determine the target compression of the retransmitted data in this cycle according to the BLER of the retransmitted data in the previous cycle Ratio, in the case that the first transmission data transmission fails, obtain the target compression ratio of the retransmission data in this cycle, and then transmit the retransmission data according to the target compression ratio.
  • Block Error Rate Block Error Rate
  • the compression ratio of the retransmitted data in this cycle is re-determined according to the BLER of the retransmitted data in the previous cycle, so as to update the compression ratio of the retransmitted data, and transmit the retransmitted data using the updated compression ratio , which can greatly reduce the waste of retransmission resources, thereby improving the throughput of the system.
  • FIG. 1 is a flowchart of a data transmission method provided according to an embodiment of the present application
  • Fig. 2 is a schematic diagram of a data transmission device provided according to an embodiment of the present application.
  • Fig. 3 is a schematic structural diagram of an electronic device according to another embodiment of the present application.
  • An embodiment of the present application relates to a data transmission method, which is applied to electronic devices.
  • the application scenarios of the embodiments of the present application may include, but are not limited to, scenarios where there are 5G and 4G base station products in China or abroad.
  • the specific flowchart of this embodiment is shown in Figure 1, including:
  • Step 101 periodically counting the block error rate BLER of the retransmitted data.
  • Step 102 according to the BLER of the previous period, determine the target compression ratio of the retransmitted data in this period.
  • Step 103 in the case that the transmission of the initial data transmission fails, obtain the target compression ratio.
  • Step 104 transmit the retransmission data according to the target compression ratio.
  • Block Error Rate Block Error Rate, BLER
  • the compression ratio of the retransmitted data in this cycle is re-determined to realize the update of the compression ratio, and the retransmitted data is transmitted using the updated compression ratio, which can be achieved in the BLER Under certain circumstances, the waste of retransmission resources can be reduced to a large extent, thereby improving the throughput of the system.
  • step 101 when the data transmission fails, the user equipment will retransmit the data to the receiving end. After completing a time period, the user equipment will count the BLER of the retransmitted data in this period. Correspondingly, every time a time period is completed , will count the BLER of the retransmitted data in this period, so as to determine the target compression ratio of the retransmitted data in the next period.
  • the negative acknowledgment (Negative Acknowledgment, NACK) in the multiple data retransmissions of the previous time period can be counted
  • the number and the number of positive confirmations (Acknowledgment, ACK) and calculate the BLER value of the retransmitted data in the previous cycle through the number of NACKs and the number of ACKs.
  • BLER can be calculated by:
  • step 102 the user equipment first re-determines the target compression ratio of the retransmitted data in the current period according to the BLER of the retransmitted data in the previous period.
  • the user equipment before determining the target compression ratio of the retransmitted data in this period according to the BLER of the previous period, the user equipment will determine whether the acquired BLER of the retransmitted data in the previous period satisfies the preset condition, and based on the judgment As a result, the target compression ratio of the retransmitted data for this period is determined.
  • the user equipment before determining the target compression ratio of the retransmitted data in the current cycle according to the BLER of the retransmitted data in the previous cycle, the user equipment also obtains the compression ratio of the retransmitted data in the previous cycle, and then adjusts the The compression ratio of the retransmitted data in one period is used to obtain the target compression ratio of the retransmitted data in the current period.
  • the compression ratio of the retransmitted data in the previous cycle does not need to be adjusted, and the compression ratio of the retransmitted data in the previous period is directly used as the target compression ratio of the retransmitted data in the current period; when the BLER is less than the low BLER threshold, it indicates that the upper If the compression ratio of the retransmitted data in one cycle is too large, then reduce the compression ratio of the retransmitted data in the previous cycle to obtain the target compression ratio of the retransmitted data in this cycle; when the BLER is greater than or equal to the high BLER threshold, It indicates that the compression ratio of the retransmitted data in the previous period is too small, then increase the compression ratio of the retransmitted data in the previous period to obtain the target compression
  • the high BLER threshold and the low BLER threshold are defined before the first data transmission, and the actual values are empirical values, for example, the high BLER threshold is 25%, and the low BLER threshold is 20%.
  • the compression ratio of the retransmitted data in the previous period is adjusted according to the update step size to obtain the target compression ratio of the retransmitted data in the current period.
  • the compression ratio of the retransmitted data in the previous cycle is reduced according to the update step size to obtain the target compression ratio of the retransmitted data in the current cycle, that is, if the BLER of the retransmitted data in the previous cycle is less than the preset low BLER threshold, the target compression ratio of the retransmitted data in this cycle is adjusted to the compression ratio of the retransmitted data in the previous cycle - the update step size;
  • the BLER is greater than or equal to the high BLER threshold
  • the update step Increase the compression ratio of the retransmitted data in the previous period to obtain the target compression ratio of the retransmitted data in the current period, that is, if the BLER of the retransmitted data in the previous period is greater than or equal to the preset high BLER threshold, the
  • the update step size is defined before the first data transmission, and the actual value is an empirical value, for example, the update step size is 0.1.
  • the compression ratio of the retransmitted data is adjusted according to the update step size, so that the adjusted compression ratio is more in line with the actual situation, and the waste of resources is reduced as much as possible.
  • step 103 if the transmission of the first transmission data fails, the user equipment will acquire the determined target compression ratio of the retransmission data.
  • the user equipment before acquiring the determined target compression ratio of the retransmitted data, the user equipment first determines whether the number of resource blocks (Resource Block, RB) used by the first transmitted data exceeds a preset threshold.
  • the target compression ratio of the retransmitted data in this period will be obtained only when it is determined that the number of RBs of the first transmitted data exceeds the preset threshold.
  • the first transmission data is the data at the time of the first transmission.
  • the first transmission data uses a smaller number of RBs, that is, the resources occupied by the first transmission data transmission are less, and there is no waste.
  • the user equipment After the first transmission data transmission fails, the user equipment will still use the first transmission data. Retransmit the data with the number of RBs; if the number of RBs used by the first data transmission exceeds the preset threshold, that is, the resources occupied by the first data transmission are large, which will cause waste of resources, then the first data transmission fails. After that, the target compression ratio of this cycle will be obtained.
  • the preset threshold is an empirical value.
  • the initial RB number of the first-transmission data is pre-allocated before the transmission of the first-transmission data, so that the first-transmission data uses the initial RB number for data transmission.
  • step 104 the user equipment determines the target RB number of the retransmission data according to the determined target compression ratio of the retransmission data, and then transmits the retransmission data with the target RB number.
  • the data compression ratio determines the resources used in data transmission, that is, the number of RBs. Therefore, after obtaining the target compression ratio of retransmitted data, it will be determined according to the target compression ratio and the initial RB number of the first transmitted data. The target RB number of the retransmission data, so that the retransmission data is transmitted according to the target RB number.
  • the number of RBs obtained according to the target compression ratio and the initial RB number of the first-transmission data may not meet the data transmission rules. Therefore, the value of the target RB number needs to be selected closest to the target compression ratio * first-transmission data
  • the final target RB number of retransmitted data is determined according to the target compression ratio and the initial RB number of the first transmission data, taking into account whether the target RB number is a data transmission rule or not, while reducing waste of resources.
  • the compression ratio of the retransmitted data is the initial compression ratio, so that the retransmitted data of the first period is transmitted according to the initial compression ratio. It can be understood that the target compression ratio of the retransmitted data in the second period will be determined according to the BLER of the retransmitted data in the first period and the initial compression ratio, and so on.
  • the initial compression ratio is the compression ratio of the partition to which the user equipment belongs, and the partition to which the user equipment belongs is determined based on the communication quality of the user equipment.
  • the optimal compression ratios used for data transmission of the user equipments will also be different, that is, the initial compression ratio is determined according to the communication quality of the user equipments. Therefore, the user equipment in the cell will be divided into multiple partitions according to the communication quality, and the initial compression ratio is the compression ratio of the partition to which the user equipment belongs.
  • the downlink channel will use one of Channel Quality Indicator (CQI), Modulation and Coding Scheme (MCS) or Signal-to-Interference and Noise Ratio (SINR)
  • CQI Channel Quality Indicator
  • MCS Modulation and Coding Scheme
  • SINR Signal-to-Interference and Noise Ratio
  • the user equipment is divided in one way; the uplink channel is divided in one of MCS, SINR or path loss.
  • the user equipment is divided into multiple partitions according to the communication quality in advance, so as to determine the partition to which the user equipment belongs, and the target compression ratio of the retransmitted data of the user equipment is determined according to the initial compression ratio of the partition.
  • the user equipment in each partition will work independently without affecting each other, that is, the user equipment in each partition will periodically count the BLER of retransmitted data, according to the above A cycle of BLER determines the target compression ratio of the retransmitted data in this cycle, and obtains the target compression ratio when the first data transmission fails, and then transmits the retransmitted data according to the target compression ratio.
  • the specific process of the data transmission method is as follows:
  • S1 Periodically count the BLER of retransmitted data.
  • BLER BLERFi of the retransmitted data in the completed period is counted, that is, BLERFi of the previous period.
  • S2 Determine the target compression ratio of the retransmitted data in this cycle according to the BLER in the previous cycle.
  • the target RB number of the retransmission data is calculated according to the target compression ratio of the retransmission data and the initial RB number of the first transmission data, and the retransmission data is transmitted according to the target RB number.
  • the update step size in step 102 can be a variable step size.
  • the update step size used in this cycle is 0.1, and can be changed to 0.2 in the next cycle.
  • the specific value is not limited here. Those skilled in the art can make adjustments according to actual conditions.
  • step division of the above various methods is only for the sake of clarity of description. During implementation, it can be combined into one step or some steps can be split and decomposed into multiple steps. As long as they include the same logical relationship, they are all within the scope of protection of this patent. ; Adding insignificant modifications or introducing insignificant designs to the algorithm or process, but not changing the core design of the algorithm and process are all within the scope of protection of this patent.
  • FIG. 2 is The schematic diagram of the data transmission device in this embodiment includes: a statistics module 201 , an execution module 202 , an acquisition module 203 and a transmission module 204 .
  • the statistics module 201 is configured to periodically calculate the block error rate BLER of the retransmitted data.
  • the execution module 202 is configured to determine the target compression ratio of the retransmitted data in this period according to the BLER of the previous period.
  • the execution module 202 is further configured to use the compression ratio of the retransmitted data in the previous period as the retransmission data compression ratio of the current period when the BLER is greater than or equal to the preset low BLER threshold and less than the preset high BLER threshold.
  • the target compression ratio of transmitted data when the BLER is less than the low BLER threshold, reduce the compression ratio of the retransmitted data in the previous cycle to obtain the target compression ratio of the retransmitted data in this cycle; when the BLER is greater than or equal to the high BLER threshold In the case of , increase the compression ratio of the retransmitted data in the previous period to obtain the target compression ratio of the retransmitted data in the current period.
  • the execution module 202 is further configured to reduce the compression ratio of the retransmitted data in the previous period according to the update step size when the BLER is less than the low BLER threshold, so as to obtain the target compression ratio of the retransmitted data in the current period;
  • the compression ratio of the retransmitted data in the previous cycle is increased according to the update step size to obtain the target compression ratio of the retransmitted data in the current cycle.
  • the execution module 202 is further configured to determine that the number of initial RBs of the first-transmission data exceeds a preset threshold before obtaining the target compression ratio in the case of failure in transmission of the first-transmission data.
  • the execution module 202 is further configured to determine the target RB number of the retransmitted data according to the target compression ratio and the initial RB number of the first transmitted data.
  • the acquiring module 203 is configured to acquire the target compression ratio in the case that the transmission of the first transmission data fails.
  • the transmission module 204 is configured to transmit the retransmission data according to the target compression ratio.
  • the transmission module 204 is further configured to transmit retransmission data according to the number of target RBs.
  • this embodiment is an apparatus embodiment corresponding to the above method embodiment, and this embodiment can be implemented in cooperation with the above method embodiment.
  • the relevant technical details and technical effects mentioned in the above embodiments are still valid in this embodiment, and will not be repeated here to reduce repetition.
  • the relevant technical details mentioned in this embodiment can also be applied in the above embodiments.
  • modules involved in this embodiment are logical modules.
  • a logical unit can be a physical unit, or a part of a physical unit, or multiple physical units. Combination of units.
  • units that are not closely related to solving the technical problem proposed in the present application are not introduced in this embodiment, but this does not mean that there are no other units in this embodiment.
  • FIG. 3 Another embodiment of the present application relates to an electronic device, as shown in FIG. 3 , including: at least one processor 301; and a memory 302 communicatively connected to the at least one processor 301; wherein, the memory 302 stores Instructions that can be executed by the at least one processor 301, the instructions are executed by the at least one processor 301, so that the at least one processor 301 can execute the data transmission methods in the foregoing embodiments.
  • the memory and the processor are connected by a bus
  • the bus may include any number of interconnected buses and bridges, and the bus connects one or more processors and various circuits of the memory together.
  • the bus may also connect together various other circuits such as peripherals, voltage regulators, and power management circuits, all of which are well known in the art and therefore will not be further described herein.
  • the bus interface provides an interface between the bus and the transceivers.
  • a transceiver may be a single element or multiple elements, such as multiple receivers and transmitters, providing means for communicating with various other devices over a transmission medium.
  • the data processed by the processor is transmitted on the wireless medium through the antenna, further, the antenna also receives the data and transmits the data to the processor.
  • the processor is responsible for managing the bus and general processing, and can also provide various functions, including timing, peripheral interface, voltage regulation, power management, and other control functions. Instead, memory can be used to store data that the processor uses when performing operations.
  • Another embodiment of the present application relates to a computer-readable storage medium storing a computer program.
  • the above method embodiments are implemented when the computer program is executed by the processor.
  • a storage medium includes several instructions to make a device ( It may be a single-chip microcomputer, a chip, etc.) or a processor (processor) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disc, etc., which can store program codes. .

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Abstract

本申请实施例涉及无线通信技术领域，公开了一种数据传输方法、装置、电子设备和计算机存储介质。上述数据传输方法包括：周期性地统计重传数据的误块率BLER；根据上一周期的所述BLER，确定本周期的重传数据的目标压缩比；在首传数据传输失败的情况下，获取所述目标压缩比；根据所述目标压缩比传输所述重传数据。

Description

数据传输方法、装置、电子设备和计算机存储介质
相关申请
本申请要求于2021年11月29日申请的、申请号为202111433199.3的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及无线通信技术领域，特别涉及一种数据传输方法、装置、电子设备和计算机存储介质。
背景技术
目前无线通信中，出错数据的重传主要是由媒体接入控制(Medium Access Control，MAC)层的混合自动重传请求(Hybrid Automatic Repeat Quest，HARQ)机制处理。当数据出错时，接收到的错误数据会保存在缓存区中，并与后续接收到的重传数据包进行合并，从而得到一个比单独解码更可靠的数据包。
传统的数据重传方案中，重传数据所使用的资源块(Resource Block，RB)数与首传数据一致，然而，采用这种重传方式，会造成一定程度的重传资源浪费，最终影响系统的吞吐量。
发明内容
本申请实施例的主要目的在于提出一种数据传输方法、装置、电子设备和计算机存储介质，使得在数据重传时，较大程度的减少重传资源的浪费，使系统的吞吐量得到改善。
为至少实现上述目的，本申请实施例提供了一种数据传输方法，包括：周期性地统计重传数据的误块率BLER；根据上一周期的所述BLER，确定本周期的重传数据的目标压缩比；在首传数据传输失败的情况下，获取所述目标压缩比；根据所述目标压缩比传输所述重传数据。
为至少实现上述目的，本申请实施例还提供一种数据传输装置，包括：统计模块，用于周期性地统计重传数据的误块率BLER；执行模块，用于根据上一周期的所述BLER，确定本周期的重传数据的目标压缩比；获取模块，用于在首传数据传输失败的情况下，获取所述目标压缩比；传输模块，用于根据所述目标压缩比传输所述重传数据。
为至少实现上述目的，本申请实施例还提供了一种电子设备，包括：至少一个处理器；以及，与所述至少一个处理器通信连接的存储器；其中，所述存储器存储有可被所述至少一个处理器执行的指令，所述指令被所述至少一个处理器执行，以使所述至少一个处理器能够执行上述的数据传输方法。
为实现上述目的，本申请实施例还提供了一种计算机可读存储介质，存储有计算机程序，所述计算机程序被处理器执行时实现上述的数据传输方法。
本申请提出的数据传输方法，通过周期性地统计重传数据的误块率(Block Error Rate，BLER)，以便根据上一周期的重传数据的BLER，确定本周期的重传数据的目标压缩比，在 首传数据传输失败的情况下，获取本周期的重传数据的目标压缩比，然后根据目标压缩比传输重传数据。本申请实施例通过根据上一周期的重传数据的BLER，重新确定本周期的重传数据的压缩比，以实现重传数据的压缩比的更新，并采用更新后的压缩比传输重传数据，能够较大程度地减少重传资源的浪费，从而改善系统的吞吐量。
附图说明
一个或多个实施例通过与之对应的附图中的图片进行示例性说明，这些示例性说明并不构成对实施例的限定，附图中具有相同参考数字标识的元件表示为类似的元件，除非有特别的申明，附图中的图不构成比例限制。
图1是根据本申请一个实施例提供的数据传输方法的流程图；
图2是根据本申请一个实施例提供的数据传输装置的示意图；
图3是根据本申请另一个实施例的电子设备的结构示意图。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合附图对本申请的各实施例进行详细的阐述。然而，本领域的普通技术人员可以理解，在本申请各实施例中，为了使读者更好地理解本申请而提出了许多技术细节。但是，即使没有这些技术细节和基于以下各实施例的种种变化和修改，也可以实现本申请所要求保护的技术方案。以下各个实施例的划分是为了描述方便，不应对本申请的具体实现方式构成任何限定，各个实施例在不矛盾的前提下可以相互结合相互引用。
本申请的一个实施例涉及一种数据传输方法，应用于电子设备，本申请的实施例的应用场景可以包括但不限于国内或者国外有5G、4G基站产品的场景。本实施例的具体流程图如图1所示，包括：
步骤101，周期性地统计重传数据的误块率BLER。
步骤102，根据上一周期的BLER，确定本周期的重传数据的目标压缩比。
步骤103，在首传数据传输失败的情况下，获取目标压缩比。
步骤104，根据目标压缩比传输重传数据。
本实施例中，通过周期性地统计重传数据的误块率(Block Error Rate，BLER)，以便根据上一周期的重传数据的BLER，确定本周期的重传数据的目标压缩比，在首传数据传输失败的情况下，获取本周期的重传数据的目标压缩比，然后根据目标压缩比传输重传数据。本申请实施例通过根据上一周期的重传数据的BLER，重新确定本周期的重传数据的压缩比，以实现压缩比的更新，并采用更新后的压缩比传输重传数据，能够在BLER在一定限度的情况下，较大程度地减少重传资源的浪费，从而改善系统的吞吐量。
下面对本实施例的数据传输方法的实现细节进行具体的说明，以下内容仅为方便理解提供的实现细节，并非实施本方案的必须。
在步骤101中，当数据传输失败时，用户设备会向接收端重传该数据，在完成一个时间周期后，用户设备会统计本周期的重传数据的BLER，相应的，每完成一个时间周期，都会统计该周期的重传数据的BLER，以便确定下一周期的重传数据的目标压缩比。
在一个例子中，由于一个时间周期内，会发生多次数据重传的情况，当上一时间周期结 束，可以统计上一时间周期的多次数据重传中的否定确认(Negative Acknowledgement，NACK)数和肯定确认(Acknowledgement，ACK)数，并通过NACK数以及ACK数计算上一周期内重传数据的BLER值。
具体地，可以通过以下方式计算BLER：
BLER＝NACK数/(NACK数+ACK数)
在步骤102中，用户设备首先会根据上一周期的重传数据的BLER，重新确定本周期的重传数据的目标压缩比。
在一个例子中，在根据上一周期的BLER，确定本周期的重传数据的目标压缩比之前，用户设备会判断获取的上一周期的重传数据的BLER是否满足预设条件，并根据判断结果，确定本周期的重传数据的目标压缩比。
在一个例子中，在根据上一周期的重传数据的BLER，确定本周期的重传数据的目标压缩比之前，用户设备还会获取上一周期的重传数据的压缩比，然后通过调整上一周期的重传数据的压缩比，得到本周期的重传数据的目标压缩比。
具体地，在上一周期的重传数据的BLER大于或等于预设的低BLER门限(BLER LowThreshold，BLER LThr)且小于预设的高BLER门限(BLER HighThreshold，BLER H Thr)的情况下，表明上一周期的重传数据的压缩比无需调整，则直接将上一周期的重传数据的压缩比作为本周期的重传数据的目标压缩比；在BLER小于低BLER门限的情况下，表明上一周期的重传数据的压缩比过大，则减小上一周期的重传数据的压缩比，得到本周期的重传数据的目标压缩比；在BLER大于或等于高BLER门限的情况下，表明上一周期的重传数据的压缩比过小，则增大上一周期的重传数据的压缩比，得到所述本周期的重传数据的目标压缩比。其中，高BLER门限与低BLER门限会在首传数据传输之前就定义好，实际取值为经验值，例如，高BLER门限值为25％，低BLER门限值为20％。通过预先设置低BLER门限与高BLER门限，可以确定出上一周期的重传数据的压缩比是否合适，有无导致资源浪费，进而对其进行调整，在不浪费资源的情况下，较少数据重传的误块率。
具体实现中，根据更新步长来调整上一周期的重传数据的压缩比，得到本周期的重传数据的目标压缩比。在BLER小于低BLER门限的情况下，根据更新步长减小上一周期的重传数据的压缩比，得到本周期的重传数据的目标压缩比，即若上一周期的重传数据的BLER小于预设的低BLER门限，本周期的重传数据的目标压缩比调整为上一周期的重传数据的压缩比-更新步长；在BLER大于或等于高BLER门限的情况下，根据更新步长增大上一周期的重传数据的压缩比，得到所述本周期的重传数据的目标压缩比，即若上一周期的重传数据的BLER大于或等于预设的高BLER门限，本周期的重传数据的目标压缩比调整为上一周期的重传数据的压缩比+更新步长。其中，更新步长会在首传数据传输之前就定义好，实际取值为经验值，例如，更新步长取值0.1。根据更新步长调整重传数据的压缩比，使得经过调整的压缩比更符合实际情况，尽可能地减少资源浪费。
在步骤103中，在首传数据传输失败的情况下，用户设备会获取确定好的重传数据的目标压缩比。
在一个例子中，在获取确定好的重传数据的目标压缩比之前，用户设备首先会确定首传数据在传输时所使用的资源块(Resource Block，RB)数是否超过预设阈值。在确定首传数据的RB数超过预设阈值的情况下，才会获取本周期的重传数据的目标压缩比。其中，首传 数据为首次传输时的数据。
具体地，若首传数据使用较小的RB数，即首传数据传输时所占用的资源较少，并没有产生浪费，在首传数据传输失败后，用户设备还会以首传数据所使用的RB数重传该数据；若首传数据在传输时所使用的RB数超过预设阈值，即首传数据传输时所占用的资源较大，会造成资源浪费，则在首传数据传输失败后，会获取本周期的目标压缩比。其中，预设阈值为一个经验值。通过预先确定首传数据在传输时所使用的初始RB数是否超过预设阈值，避免对使用RB数较少的数据进行压缩比的更新，导致重传数据的BLER增加，降低通信质量。其中，首传数据的初始RB数在首传数据传输之前预先分配，以使首传数据使用初始RB数进行数据传输。
在步骤104中，用户设备会根据确定的重传数据的目标压缩比，确定重传数据的目标RB数，然后以目标RB数传输重传数据。
可以理解的是，数据的压缩比决定了数据传输时所使用的资源，即RB数，因此，在得到重传数据的目标压缩比后，会根据目标压缩比和首传数据的初始RB数确定重传数据的目标RB数，以便重传数据根据目标RB数进行数据传输。
在一个例子中，根据目标压缩比和首传数据的初始RB数得到的RB数可能不符合数据的传输规则，因此，目标RB数的取值需要选择最接近于目标压缩比*首传数据的初始RB数的RB值。例如，目标压缩比为0.7，初始RB数为10，计算得到RB数为7，但是7不符合数据的235原则，则目标RB数的值可以为最接近于7的8，即目标RB数＝8。根据目标压缩比与首传数据的初始RB数确定最终重传数据的目标RB数，考虑到了目标RB数是否数据传输规则的同时，减少资源的浪费。
在一个例子中，在重传数据为首个周期的重传数据的情况下，重传数据的压缩比为初始压缩比，以使首个周期的重传数据根据初始压缩比进行数据传输。可以理解的是，第二周期的重传数据的目标压缩比会根据首个周期的重传数据的BLER和初始压缩比来确定，以此类推。
其中，初始压缩比为用户设备所属的分区的压缩比，用户设备所属的分区基于用户设备的通信质量确定。
具体地，由于不同用户设备(User Equipment，UE)的通信质量不同，用户设备的数据在传输时所使用的最佳压缩比也会不同，即初始压缩比根据用户设备的通信质量决定。因此，小区中的用户设备会被根据通信质量划分为多个分区，则初始压缩比为该用户设备所属的分区的压缩比。
在一个例子中，下行信道会以信道质量指示(Channel Quality Indicator，CQI)、调制编码方式(Modulation and Coding Scheme，MCS)或信号干扰噪声比(Signal-to-Interference and Noise Ratio，SINR)其中之一的方式划分用户设备；上行信道以MCS、SINR或路损其中之一的方式划分用户设备。通过预先将用户设备根据通信质量划分成多个分区，以便确定该用户设备所属的分区，并根据该分区的初始压缩比确定该用户设备的重传数据的目标压缩比。
具体实现中，在小区中的用户设备被划分为多个分区之后，各个分区的用户设备会独立工作，互不影响，即各个分区的用户设备分别周期性地统计重传数据的BLER，根据上一周期的BLER，确定本周期的重传数据的目标压缩比，在首传数据传输失败的情况下，获取目标压缩比，然后根据目标压缩比传输重传数据。
为了便于理解，下面举例说明本实施例的数据传输方法的实现流程：
假设小区中的用户设备根据CQI指标被分为以下三个分区，并定义以下初始参数：
CQI＝0～6的为远区域F0，CQI＝7～11的为中区域F1，CQI＝12～15的为近区域F2。
其中，三个区域独立工作，各分区的压缩比，即初始压缩比为ComRatioFi＝0.5；预先分配的首传数据的初始RB数为100；预先定义高门限为25％，低门限为20％；以数据重传达到10000次为一个周期；采用固定的更新步长0.1。数据传输方法的具体流程如下：
S1：周期性地统计重传数据的BLER。
具体而言，当完成一个时间周期，即数据重传了10000次，统计已完成的周期内重传数据的BLER＝BLERFi，即上一周期的BLERFi。
S2：根据上一周期的BLER，确定本周期的重传数据的目标压缩比。
具体而言，若BLER_F i≥BLER_H_Thr，即BLER_F i≥25％，则目标压缩比为ComRatioFi+更新步长＝0.5+0.1＝0.6。
若BLER_F i＜BLER_L_Thr，即BLER_F i＜20％，则目标压缩比为ComRatioFi-更新步长＝0.5-0.1＝0.4。
若BLER_L_Thr≤BLER_F i＜BLER_H_Thr，则目标压缩比不变，即目标压缩比＝0.5。
S3：在首传数据传输失败的情况下，获取目标压缩比。
S4：根据目标压缩比传输重传数据。
具体而言，根据重传数据的目标压缩比和首传数据的初始RB数，计算得到重传数据的目标RB数，根据目标RB数传输重传数据。其中，若首传数据的初始RB数为100，则在目标压缩比＝0.6的情况下，目标RB数为0.6*100＝60；在目标压缩比＝0.4的情况下，目标RB数为0.4*100＝40。
在另一个实施例中，步骤102中的更新步长可以采用变步长，例如，在本周期采用的更新步长为0.1，在下一周期可以变为0.2，具体取值在此不作限制，本领域技术人员可根据实际情况进行调整。
值得一提的是，将本申请实施例的数据传输方法应用于正常的数据业务中，或者将其与自适应调制编码(Adaptive Modulation and coding，AMC)技术组合，可以提高系统的吞吐量。
需要说明的是，本实施方式中的上述各示例均为方便理解进行的举例说明，并不对本申请的技术方案构成限定。
上面各种方法的步骤划分，只是为了描述清楚，实现时可以合并为一个步骤或者对某些步骤进行拆分，分解为多个步骤，只要包括相同的逻辑关系，都在本专利的保护范围内；对算法中或者流程中添加无关紧要的修改或者引入无关紧要的设计，但不改变其算法和流程的核心设计都在该专利的保护范围内。
本申请的另一个实施例涉及一种数据传输装置，下面对本实施例的数据传输装置的细节进行具体的说明，以下内容仅为方便理解提供的实现细节，并非实施本例的必须，图2是本实施例所述的数据传输装置的示意图，包括：统计模块201、执行模块202、获取模块203和传输模块204。
具体而言，统计模块201，用于周期性地统计重传数据的误块率BLER。
执行模块202，用于根据上一周期的BLER，确定本周期的重传数据的目标压缩比。
在一个例子中，执行模块202还用于在BLER大于或等于预设的低BLER门限且小于预 设的高BLER门限的情况下，将上一周期的重传数据的压缩比作为本周期的重传数据的目标压缩比；在BLER小于低BLER门限的情况下，减小上一周期的重传数据的压缩比，得到本周期的重传数据的目标压缩比；在BLER大于或等于高BLER门限的情况下，增大上一周期的重传数据的压缩比，得到本周期的重传数据的目标压缩比。
在一个例子中，执行模块202还用于在BLER小于低BLER门限的情况下，根据更新步长减小上一周期的重传数据的压缩比，得到本周期的重传数据的目标压缩比；在BLER大于或等于高BLER门限的情况下，根据更新步长增大上一周期的重传数据的压缩比，得到本周期的重传数据的目标压缩比。
在一个例子中，执行模块202还用于在首传数据传输失败的情况下，获取目标压缩比之前，确定首传数据的初始资源块RB数超过预设阈值。
在一个例子中，执行模块202还用于根据目标压缩比和首传数据的初始RB数，确定重传数据的目标RB数。
获取模块203，用于在首传数据传输失败的情况下，获取目标压缩比。
传输模块204，用于根据目标压缩比传输重传数据。
在一个例子中，传输模块204还用于根据目标RB数，传输重传数据。
不难发现，本实施例为与上述方法实施例对应的装置实施例，本实施例可以与上述方法实施例互相配合实施。上述实施例中提到的相关技术细节和技术效果在本实施例中依然有效，为了减少重复，这里不再赘述。相应地，本实施例中提到的相关技术细节也可应用在上述实施例中。
值得一提的是，本实施例中所涉及到的各模块均为逻辑模块，在实际应用中，一个逻辑单元可以是一个物理单元，也可以是一个物理单元的一部分，还可以以多个物理单元的组合实现。此外，为了突出本申请的创新部分，本实施例中并没有将与解决本申请所提出的技术问题关系不太密切的单元引入，但这并不表明本实施例中不存在其它的单元。
本申请另一个实施例涉及一种电子设备，如图3所示，包括：至少一个处理器301；以及，与所述至少一个处理器301通信连接的存储器302；其中，所述存储器302存储有可被所述至少一个处理器301执行的指令，所述指令被所述至少一个处理器301执行，以使所述至少一个处理器301能够执行上述各实施例中的数据传输方法。
其中，存储器和处理器采用总线方式连接，总线可以包括任意数量的互联的总线和桥，总线将一个或多个处理器和存储器的各种电路连接在一起。总线还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路连接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口在总线和收发机之间提供接口。收发机可以是一个元件，也可以是多个元件，比如多个接收器和发送器，提供用于在传输介质上与各种其他装置通信的单元。经处理器处理的数据通过天线在无线介质上进行传输，进一步，天线还接收数据并将数据传送给处理器。
处理器负责管理总线和通常的处理，还可以提供各种功能，包括定时，外围接口，电压调节、电源管理以及其他控制功能。而存储器可以被用于存储处理器在执行操作时所使用的数据。
本申请另一个实施例涉及一种计算机可读存储介质，存储有计算机程序。计算机程序被处理器执行时实现上述方法实施例。
即，本领域技术人员可以理解，实现上述实施例方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成，该程序存储在一个存储介质中，包括若干指令用以使得一个设备(可以是单片机，芯片等)或处理器(processor)执行本申请各个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。
本领域的普通技术人员可以理解，上述各实施方式是实现本申请的具体实施例，而在实际应用中，可以在形式上和细节上对其作各种改变，而不偏离本申请的精神和范围。

Claims (10)

  1. 一种数据传输方法，包括：
    周期性地统计重传数据的误块率BLER；
    根据上一周期的所述BLER，确定本周期的重传数据的目标压缩比；
    在首传数据传输失败的情况下，获取所述目标压缩比；
    根据所述目标压缩比传输所述重传数据。
  2. 根据权利要求1所述的数据传输方法，其中，所述根据上一周期的所述BLER，确定本周期的重传数据的目标压缩比，包括：
    在所述BLER大于或等于预设的低BLER门限且小于预设的高BLER门限的情况下，将上一周期的重传数据的压缩比作为所述本周期的重传数据的目标压缩比；
    在所述BLER小于所述低BLER门限的情况下，减小所述上一周期的重传数据的压缩比，得到所述本周期的重传数据的目标压缩比；
    在所述BLER大于或等于所述高BLER门限的情况下，增大所述上一周期的重传数据的压缩比，得到所述本周期的重传数据的目标压缩比。
  3. 根据权利要求2所述的数据传输方法，其中，所述在所述BLER小于所述低BLER门限的情况下，减小所述上一周期的重传数据的压缩比，得到所述本周期的重传数据的目标压缩比，包括：
    在所述BLER小于所述低BLER门限的情况下，根据更新步长减小所述上一周期的重传数据的压缩比，得到所述本周期的重传数据的目标压缩比。
  4. 根据权利要求2所述的数据传输方法，其中，所述在所述BLER大于或等于所述高BLER门限的情况下，增大所述上一周期的重传数据的压缩比，得到所述本周期的重传数据的目标压缩比，包括：
    在所述BLER大于或等于所述高BLER门限的情况下，根据更新步长增大所述上一周期的重传数据的压缩比，得到所述本周期的重传数据的目标压缩比。
  5. 根据权利要求1所述的数据传输方法，其中，所述在首传数据传输失败的情况下，获取所述目标压缩比之前，还包括：
    确定所述首传数据的初始资源块RB数超过预设阈值。
  6. 根据权利要求5所述的数据传输方法，其中，所述根据所述目标压缩比传输所述重传数据，包括：
    根据所述目标压缩比和所述首传数据的初始RB数，确定所述重传数据的目标RB数；
    根据所述目标RB数，传输所述重传数据。
  7. 根据权利要求1至6中任一项所述的数据传输方法，其中，当所述重传数据为首个周 期的重传数据时，所述重传数据的压缩比为初始压缩比；所述初始压缩比为用户设备所属的分区的压缩比；
    其中，所述用户设备所属的分区基于所述用户设备的通信质量确定。
  8. 一种数据传输装置，包括：
    统计模块，用于周期性地统计重传数据的误块率BLER；
    执行模块，用于根据上一周期的所述BLER，确定本周期的重传数据的目标压缩比；
    获取模块，用于在首传数据传输失败的情况下，获取所述目标压缩比；
    传输模块，用于根据所述目标压缩比传输所述重传数据。
  9. 一种电子设备，包括：
    至少一个处理器；以及，
    与所述至少一个处理器通信连接的存储器；其中，
    所述存储器存储有可被所述至少一个处理器执行的指令，所述指令被所述至少一个处理器执行，以使所述至少一个处理器能够执行如权利要求1至7中任一项所述的数据传输方法。
  10. 一种计算机可读存储介质，存储有计算机程序，其中，所述计算机程序被处理器执行时实现权利要求1至7中任一项所述的数据传输方法。
PCT/CN2022/132688 2021-11-29 2022-11-17 数据传输方法、装置、电子设备和计算机存储介质 WO2023093618A1 (zh)

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* Cited by examiner, † Cited by third party
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CN101035086A (zh) * 2007-04-20 2007-09-12 杭州华三通信技术有限公司 数据传输方法及装置
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CN101035086A (zh) * 2007-04-20 2007-09-12 杭州华三通信技术有限公司 数据传输方法及装置
US20150109996A1 (en) * 2013-10-22 2015-04-23 Hae-Chul LEE DEVICE AND METHOD FOR OPTIMIZING COMPRESSION lEVEL OF HARQ SIGNAL
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