CN116261226B - Uplink channel resource allocation and determination method, network side equipment and terminal equipment - Google Patents

Uplink channel resource allocation and determination method, network side equipment and terminal equipment Download PDF

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Publication number
CN116261226B
CN116261226B CN202310542249.4A CN202310542249A CN116261226B CN 116261226 B CN116261226 B CN 116261226B CN 202310542249 A CN202310542249 A CN 202310542249A CN 116261226 B CN116261226 B CN 116261226B
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uplink channel
unlicensed
current service
resource
resources
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CN116261226A (en
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于江
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Shanghai Xingsi Semiconductor Co ltd
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Shanghai Xingsi Semiconductor Co ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/1263Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/02Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/16Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]

Abstract

The application discloses an uplink channel resource allocation and determination method, network side equipment and terminal equipment. Wherein the method comprises the following steps: when the current service is a video service transmitted based on a Transmission Control Protocol (TCP), configuring a resource allocation mode of an uplink channel corresponding to the current service as an unlicensed mode when a TCP layer of the current service is in a slow start stage, and configuring unlicensed resources of the uplink channel corresponding to the current service based on configuration parameters. The application solves the technical problems of slow transmission speed and prolonged playing time of video service transmitted by TCP protocol caused by long transmission delay of TCP ACK packet in slow start stage of TCP transmission because the terminal equipment needs to request uplink resource to the base station for transmitting each time when transmitting data packet to the base station in the related technology.

Description

Uplink channel resource allocation and determination method, network side equipment and terminal equipment
Technical Field
The present application relates to the field of communications technologies, and in particular, to an uplink channel resource allocation and determination method, a network side device, and a terminal device.
Background
The mobile streaming media technology is a technology that continuous image and sound information is stored on a network server after compression processing, so that a mobile terminal user can watch and listen while downloading the information without waiting for the completion of downloading the whole multimedia file. At present, most of video services embedded in HTTP web pages adopt the streaming media technology and are downloaded and played at the same time. The corresponding transport layer of the video service may be transmitted using TCP protocol. For the TCP protocol, when the transmitting end starts to transmit data, as the load condition of the network is not clear, a detection method is adopted, and based on the TCP ACK data packet fed back by the receiving end, the transmitting window is gradually increased from small to large, namely, the slow start stage is adopted.
In the slow start stage of TCP, when receiving the TCP ACK data packet fed back by the receiving end, the sending window of the sending end is increased each time, the increased size is the number of confirmed data segments, and the sending window size of the sending end directly determines the transmission rate of the TCP data packet sent by the sending end, so that in the slow start stage, the feedback speed of the TCP ACK packet can influence the transmission rate of the TCP data packet. However, in the related art, when the terminal device sends the TCP ACK packet to the base station each time, it needs to request the base station for sending the uplink resource, which results in a long transmission delay of the TCP ACK packet in a slow start stage of TCP transmission, and causes a technical problem that a transmission speed of a video service transmitted by adopting a TCP protocol is slow and a play time is prolonged.
In view of the above problems, no effective solution has been proposed at present.
Disclosure of Invention
The embodiment of the application provides an uplink channel resource allocation and determination method, network side equipment and terminal equipment, which at least solve the technical problems that in the related art, the transmission delay of a TCP ACK packet is long in a slow start stage of TCP transmission and the transmission speed of video service transmitted by adopting a TCP protocol is slow and the transmission time is prolonged because the terminal equipment needs to request uplink resources to be transmitted to a base station for transmitting the data packet every time to the base station.
According to an aspect of an embodiment of the present application, there is provided a method for configuring uplink channel resources, including: when the current service is a video service transmitted based on a Transmission Control Protocol (TCP), configuring a resource allocation mode of an uplink channel corresponding to the current service as an unlicensed mode when a TCP layer of the current service is in a slow start stage, configuring unlicensed resources of the uplink channel corresponding to the current service based on configuration parameters, and: the configuration parameters comprise maximum unlicensed resources, so that the terminal equipment gradually increases the transmission resources of the uplink channels corresponding to the current service based on convention, wherein the maximum value of the transmission resources does not exceed the maximum unlicensed resources; or the configuration parameter comprises the gradually increased unlicensed resource, so that the terminal equipment gradually increases the transmission resource of the uplink channel corresponding to the current service based on the gradually increased unlicensed resource.
Optionally, the method further comprises: and judging whether the current service is video service based on TCP transmission or not based on at least one of QoS configured by the communication node CN for the current service, URL carried in the HTTP packet and DPI result detected by the deep data packet corresponding to the HTTP packet.
Optionally, configuring the resource allocation manner of the uplink channel corresponding to the current service when the TCP layer of the current service is in the slow start stage to be an unlicensed manner includes: and determining configuration parameters of unlicensed resources of an uplink channel corresponding to the current service based on a target transmission rate of the TCP ACK packet, wherein the target transmission rate is the transmission rate of the TCP ACK packet at the end of the slow start stage.
Optionally, the null rate corresponding to the parameter value of the configuration parameter is not less than the target transmission rate of the TCP ACK packet.
Optionally, the configuration parameters further include at least one of: time domain resource parameters, frequency domain resource parameters, modulation and coding scheme parameters, antenna port parameters, sounding reference signal SRS resource indication parameters and modulation demodulation signal DMRS; and/or the configuration parameters further comprise effective time when the resource configuration mode of the uplink channel corresponding to the current service is configured into an unlicensed mode.
Optionally, based on the target transmission rate of the TCP ACK packet, before determining the configuration parameter of the unlicensed resource of the uplink channel corresponding to the current service, the method further includes: and calculating based on a receiving window rwnd corresponding to the TCP layer, a maximum message segment length MSS, a loopback time delay value RTT and an IP packet head size corresponding to the TCP ACK packet to obtain a target transmission rate of the TCP ACK packet.
Optionally, based on the target transmission rate of the TCP ACK packet, determining the configuration parameter of the unlicensed resource of the uplink channel corresponding to the current service includes: determining an adjustment coefficient according to the transmission frequency of the TCP ACK packet, wherein the adjustment coefficient is positively correlated with the transmission frequency; updating the target transmission rate of the TCP ACK packet based on the adjustment coefficient; and determining configuration parameters of unlicensed resources of the uplink channel corresponding to the current service based on the updated target transmission rate of the TCP ACK packet.
Optionally, configuring the resource allocation manner of the uplink channel corresponding to the current service when the TCP layer of the current service is in the slow start stage to be an unlicensed manner includes: activating/deactivating an unlicensed mode through Radio Resource Control (RRC) signaling, and configuring unlicensed resources through the RRC signaling based on configuration parameters; or, the unlicensed resource is configured based on the configuration parameters through RRC signaling by activating/deactivating the unlicensed mode through downlink control information DCI.
According to another aspect of the embodiment of the present application, there is also provided a method for determining uplink channel resources, including: when the current service is a video service transmitted based on a Transmission Control Protocol (TCP), determining unlicensed resources configured based on configuration parameters at a slow start stage of a TCP layer of the current service so as to determine transmission resources of an uplink channel corresponding to the current service; the configuration parameters comprise maximum unlicensed resources, and determining unlicensed resources configured based on the configuration parameters in a slow start stage of a TCP layer of the current service to determine transmission resources of an uplink channel corresponding to the current service comprises: under the condition that the maximum unlicensed resource is not exceeded, the unlicensed resource of the uplink channel corresponding to the current service is gradually increased based on the convention; or, the configuration parameter includes a gradually increased unlicensed resource, and determining the unlicensed resource configured based on the configuration parameter in the slow start stage of the TCP layer of the current service to determine the transmission resource of the uplink channel corresponding to the current service includes: and gradually increasing the transmission resources of the uplink channel corresponding to the current service based on the gradually increased unlicensed resources.
According to still another aspect of the embodiment of the present application, there is also provided a network side device, including: the system comprises a memory and a processor, wherein the processor is used for running a program stored in the memory, and the program runs to execute the uplink channel resource allocation method.
According to still another aspect of the embodiment of the present application, there is also provided a terminal device, including: the system comprises a memory and a processor, wherein the processor is used for running a program stored in the memory, and the program runs to execute the uplink channel resource determining method.
According to still another aspect of the embodiments of the present application, there is further provided a nonvolatile storage medium, where the nonvolatile storage medium includes a stored computer program, and a device where the nonvolatile storage medium is located executes an uplink channel resource allocation method or an uplink channel resource determination method by running the computer program.
In the embodiment of the application, when the current service is the video service transmitted based on the Transmission Control Protocol (TCP), the resource allocation mode of the uplink channel corresponding to the current service is configured into the unlicensed mode, and the uplink is configured to adopt the unlicensed resource allocation mode aiming at the video service transmitted based on the TCP, so that the waiting time of uplink scheduling is saved, the transmission delay of a TCP ACK packet is reduced, the transmission window of a TCP slow start stage is increased, the transmission speed of a downlink video service is increased, the playing delay of the video service is further reduced, and the technical problems that the transmission speed of the video service transmitted by the TCP protocol is slow and the playing delay of the video service is long because the terminal equipment needs to request the base station to transmit uplink resources each time when the terminal equipment transmits the data packet to the base station in the related technology are solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
fig. 1 is a block diagram of a hardware structure of a computer terminal (or electronic device) for implementing a method for configuring uplink channel resources according to an embodiment of the present application;
fig. 2 is a schematic diagram of a method flow for uplink channel resource allocation according to an embodiment of the present application;
fig. 3 is a schematic diagram of a method flow for determining uplink channel resources according to an embodiment of the present application;
fig. 4 is a schematic diagram of a method flow of data transmission according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of an uplink channel resource allocation system according to an embodiment of the present application.
Detailed Description
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
For video services embedded in HTTP web pages, the streaming media technology is mostly adopted, and the video services are downloaded and played simultaneously. However, with this technique, a user side is required to buffer a certain amount of data before playing starts, and playing is started only when the amount of data stored in the buffer is higher than a certain threshold value, so that the mobile terminal user can see the video service transmitted by the server after a delay. When a mobile terminal user clicks on a video to start playing the video, the time is often referred to as a pre-playing time delay (playing time delay), and the playing time delay is an important parameter affecting the experience of the user of the video service.
In the related art, when a terminal device sends a TCP ACK packet to a base station each time, it needs to request an uplink resource to the base station for further sending, which results in a long transmission delay of the TCP ACK packet in a slow start stage of TCP transmission, so that there are problems of slow transmission speed, prolonged playing time, and poor user experience of a video service transmitted by using a TCP protocol. In order to solve this problem, related solutions are provided in the embodiments of the present application, and are described in detail below.
In accordance with an embodiment of the present application, there is provided a method embodiment of uplink channel resource allocation, it being noted that the steps shown in the flowchart of the figures may be performed in a computer system, such as a set of computer executable instructions, and, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in an order other than that shown or described herein.
The method embodiments provided by the embodiments of the present application may be performed in a mobile terminal, a computer terminal, or similar computing device. Fig. 1 shows a hardware block diagram of a computer terminal (or electronic device) for implementing an uplink channel resource allocation method. As shown in fig. 1, the computer terminal 10 (or electronic device 10) may include one or more processors 102 (shown as 102a, 102b, … …,102 n) which may include, but are not limited to, a microprocessor MCU or a processing device such as a programmable logic device FPGA, a memory 104 for storing data, and a transmission device 106 for communication functions. In addition, the method may further include: a display, an input/output interface (I/O interface), a Universal Serial BUS (USB) port (which may be included as one of the ports of the BUS), a network interface, a power supply, and/or a camera. It will be appreciated by those of ordinary skill in the art that the configuration shown in fig. 1 is merely illustrative and is not intended to limit the configuration of the electronic device described above. For example, the computer terminal 10 may also include more or fewer components than shown in FIG. 1, or have a different configuration than shown in FIG. 1.
It should be noted that the one or more processors 102 and/or other data processing circuits described above may be referred to generally herein as "data processing circuits. The data processing circuit may be embodied in whole or in part in software, hardware, firmware, or any other combination. Furthermore, the data processing circuitry may be a single stand-alone processing module, or incorporated, in whole or in part, into any of the other elements in the computer terminal 10 (or electronic device). As referred to in embodiments of the application, the data processing circuit acts as a processor control (e.g., selection of the path of the variable resistor termination connected to the interface).
The memory 104 may be used to store software programs and modules of application software, such as program instructions/data storage devices corresponding to the uplink channel resource allocation method in the embodiment of the present application, and the processor 102 executes the software programs and modules stored in the memory 104, thereby executing various functional applications and data processing, that is, implementing the uplink channel resource allocation method described above. Memory 104 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include memory located remotely from the processor 102, which may be connected to the computer terminal 10 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The transmission means 106 is arranged to receive or transmit data via a network. The specific examples of the network described above may include a wireless network provided by a communication provider of the computer terminal 10. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, NIC) that can connect to other network devices through a base station to communicate with the internet. In one example, the transmission device 106 may be a Radio Frequency (RF) module for communicating with the internet wirelessly.
The display may be, for example, a touch screen type Liquid Crystal Display (LCD) that may enable a user to interact with a user interface of the computer terminal 10 (or electronic device).
In the above operating environment, the embodiment of the present application provides a method for configuring uplink channel resources, and fig. 2 is a schematic diagram of a method flow for configuring uplink channel resources according to the embodiment of the present application, as shown in fig. 2, where the method includes the following steps:
step S202, when the current service is a video service based on transmission control protocol TCP transmission, configuring a resource allocation mode of an uplink channel corresponding to the current service as an unlicensed mode when a TCP layer of the current service is in a slow start stage, configuring unlicensed resources of the uplink channel corresponding to the current service based on configuration parameters, and: the configuration parameters comprise maximum unlicensed resources, so that the terminal equipment gradually increases the transmission resources of the uplink channels corresponding to the current service based on convention, wherein the maximum value of the transmission resources does not exceed the maximum unlicensed resources; or the configuration parameter comprises the gradually increased unlicensed resource, so that the terminal equipment gradually increases the transmission resource of the uplink channel corresponding to the current service based on the gradually increased unlicensed resource.
Specifically, the configuration parameters are configured so that when the TCP layer of the current service is in the slow start stage, the transmission resources of the corresponding uplink channel can be gradually increased until the maximum unlicensed resource.
The uplink channel resource allocation method in step S202 is further described below.
In some embodiments of the application, a method comprises: and judging whether the current service is video service based on TCP transmission or not based on at least one of QoS configured by the communication node CN for the current service, URL carried in the HTTP packet and DPI result detected by the deep data packet corresponding to the HTTP packet.
Specifically, the step of determining that the current traffic is video traffic based on TCP transmission includes at least one of:
(1) Based on the service quality parameter configured by the communication node CN for the current service, the current service is judged to be the video service based on TCP transmission.
In some embodiments of the present application, based on the quality of service parameter configured by the communication node CN for the current service, determining that the current service is a video service based on TCP transmission comprises the steps of: determining a service quality parameter according to a service quality identifier corresponding to the current service, wherein the service quality parameter is a 5QI value; and judging the current service as the video service based on TCP transmission by analyzing the service quality parameter.
Specifically, the service type is determined based on the QoS (Quality of Service ) parameter (i.e., the above quality of service parameter) to be video service transmitted based on the TCP (Transmission Control Protocol ) protocol (i.e., the above preset transmission protocol). In a wireless communication system, qoS parameters may be used to measure transmission quality requirements of different services, including priority, delay, packet error rate, etc. Different traffic types correspond to different QoS parameters.
As an alternative embodiment, the service type may be determined to be video service transmitted based on the TCP protocol based on a 5QI value (5G QoS Identifier,5G QoS identification).
For example, the mapping relation between different 5QI, qoS specific parameter values and service instances given by Table 5.7.4-1 of 3GPP 23.501 protocol can be used for determining video service transmitted based on TCP protocol, and when the 5QI value is 6/8/9/10, the service type corresponding to the bearer can be determined to be video service transmitted based on TCP protocol.
The service type is determined to be the video service based on TCP protocol transmission based on the 5QI value, and an unlicensed configuration scheme can be adopted for configuring the uplink for the UE in the radio bearer establishment stage, so that on one hand, the RRC signaling interaction flow can be saved, and on the other hand, the scheduling waiting time delay of a TCP ACK packet can be minimized.
(2) And based on the target data packet transmitted by the current service, judging that the current service is the video service transmitted by the TCP.
In some embodiments of the present application, determining that the current traffic is a video traffic based on TCP transmission based on the target data packet of the current traffic transmission includes the steps of: analyzing a target data packet of the current service transmission; acquiring a uniform resource locator carried in a target data packet, wherein the uniform resource locator is used for identifying a website of video data requested by terminal equipment; and judging the current service as the video service based on TCP transmission by matching the uniform resource locator with the website in the preset website database, wherein the preset website database comprises at least one website.
Specifically, for the video service embedded in HTTP, when the user clicks a link on a web page to watch a video, GET mode is used to request to acquire a file. The HTTP GET request contains URL information (uniform resource locator, i.e., the uniform resource locator described above), and based on this URL information, it can be determined that the service type is video service transmitted based on the TCP protocol.
For example, the network address information (i.e. the preset network address database) of N most commonly used HTTP (Hyper Text Transfer Protocol ) embedded video services may be stored based on the historical statistics result, and if the URL information in the HTTP GET request is consistent with the stored network address, it is determined that the service is a video service transmitted based on the TCP protocol, where the value of N may be adjusted according to the actual requirement.
In some embodiments of the present application, determining that the current service is a video service based on TCP transmission based on the target data packet of the current service transmission further comprises the steps of: acquiring a target data packet of current service transmission; and determining the current service as the video service based on TCP transmission by carrying out depth detection on the message content and the message structure of the target data packet.
Specifically, the service type is determined based on the service identification result of the DPI (Deep Packet Inspection ).
In some embodiments of the present application, configuring a resource allocation manner of an uplink channel corresponding to a current service when a TCP layer of the current service is in a slow start stage as an unlicensed manner includes the following steps: determining configuration parameters of unlicensed resources of an uplink channel corresponding to a current service based on a target transmission rate of a TCP ACK packet, wherein the target transmission rate is the transmission rate of the TCP ACK packet at the end of a slow start stage; and configuring the unlicensed resources based on the configuration parameters.
Specifically, determining that the resource allocation manner of the uplink channel corresponding to the current service is an unlicensed manner includes the following steps: determining a parameter value of a configuration parameter of an uplink channel corresponding to a current service based on a target transmission rate of a TCP ACK packet; based on the parameter value of the configuration parameter, the configuration parameter of the uplink channel in the unlicensed mode is configured, so that the terminal equipment UE uses the uplink resource corresponding to the configuration parameter to perform uplink transmission.
In some embodiments of the present application, a maximum transmission rate (i.e., an air interface rate) that can be provided by an uplink resource corresponding to a parameter value of a configuration parameter is not less than a target transmission rate of a TCP ACK packet, and the configuration parameter of an uplink channel includes at least one of the following: time domain resource parameters, frequency domain resource parameters, modulation and coding scheme parameters, antenna port parameters, sounding reference signal SRS resource indication parameters and modulation demodulation signal DMRS.
In some embodiments of the present application, the configuration parameters of the uplink channel include an effective time when a resource configuration mode of the uplink channel corresponding to the current service is configured to be an unlicensed mode, where in the effective time, the terminal device uses unlicensed resources to send uplink data.
In some embodiments of the present application, before determining the configuration parameter of the unlicensed resource of the uplink channel corresponding to the current service based on the target transmission rate of the TCP ACK packet, the method further includes: calculating based on a receiving window rwnd corresponding to the TCP layer, a maximum message segment length MSS, a loopback time delay value RTT and an IP packet head size corresponding to the TCP ACK packet to obtain a target transmission rate of the TCP ACK packet; and/or, based on the target transmission rate of the TCP ACK packet, determining the configuration parameters of the unlicensed resources of the uplink channel corresponding to the current service includes: determining an adjustment coefficient according to the transmission frequency of the TCP ACK packet, wherein the adjustment coefficient is positively correlated with the transmission frequency; updating the target transmission rate of the TCP ACK packet based on the adjustment coefficient; and determining configuration parameters of unlicensed resources of the uplink channel corresponding to the current service based on the updated target transmission rate of the TCP ACK packet.
Specifically, determining an IP protocol version corresponding to the TCP ACK packet, and determining an objective function corresponding to the IP protocol version, wherein the objective function comprises an adjustment coefficient; determining an adjustment coefficient according to the transmission frequency of the TCP ACK packet; substituting the adjustment coefficient into the objective function to calculate to obtain the target transmission rate of the TCP ACK packet, wherein the IP protocol version comprises: IPv4 and IPv6.
The objective function includes: receiving a window rwnd, a maximum message segment length MSS, a loopback delay value RTT and a target constant, wherein different IP protocol versions correspond to different target constants; and calculating according to the receiving window rwnd, the maximum message segment length MSS, the loopback delay value RTT, the target constant and the regulating coefficient to obtain the target transmission rate of the TCP ACK packet.
The receiving window rwnd is maintained by the receiving end corresponding to the TCP layer, reflects the capability of the receiving end to receive data, and the specific definition and description can refer to the existing standard TCP protocol.
Specifically, the formula (i.e., the objective function) for calculating the transmission rate of the TCP ACK packet (i.e., the data acknowledgement packet described above) is as follows:
(1)
(2)
wherein, the formula (1) corresponds to an IPv4 data packet, the formula (2) corresponds to an IPv6 data packet, rwnd is a receiving window corresponding to a TCP protocol, the unit is bytes, the MSS can be configured according to an empirical value, the MSS is the maximum message segment length of the TCP, for example, 1460 bytes, the RTT is the loopback time delay value of the TCP layer, To adjust the coefficients, the transmission frequency of the TCP ACK packet is dependent.
Specifically, the base station (i.e., the network side device) may determine, according to the transmission rate of the TCP ACK packet (i.e., the data acknowledgement packet) calculated by the above formula, relevant parameter values (i.e., parameter values of the above configuration parameters) such as time domain resources, frequency domain resources, modulation coding schemes, antenna ports of the uplink unlicensed resources, where the air interface rate corresponding to the determined relevant parameter values such as allocated time domain resources, frequency domain resources, modulation coding schemes, antenna ports is greater than or equal to the rate of the TCP ACK packet.
The specific parameter value corresponding to the unlicensed resource is determined based on the rate of the TCP ACK packet, so that the waste of uplink channel resources can be avoided and the utilization rate of the uplink channel resources can be improved on the premise of meeting the target transmission rate of the TCP ACK packet.
After determining the specific parameter value of the configuration parameter, the base station configures the uplink of the UE by RRC signaling (i.e., the radio resource control signaling) to adopt an unlicensed resource allocation manner, where specific parameters corresponding to unlicensed resources may include, but are not limited to: time domain resources, frequency domain resources, modulation coding scheme, antenna ports, SRS (Sounding Reference Signal, channel sounding reference signal) resource indication, DMRS (Demodulation Reference Signal ), active time.
In some embodiments of the present application, configuring the resource allocation manner of the uplink channel corresponding to the current service when the TCP layer of the current service is in the slow start stage as the unlicensed manner includes: activating/deactivating an unlicensed mode through Radio Resource Control (RRC) signaling, and configuring unlicensed resources through the RRC signaling based on configuration parameters; or, the unlicensed resource is configured based on the configuration parameters through RRC signaling by activating/deactivating the unlicensed mode through downlink control information DCI.
Specifically, the uplink grant-free is an uplink resource allocation manner supported by the current NR (New Radio) network, that means that the gNB activates an uplink grant to a UE (User Equipment) (i.e., the terminal device) once, and under the condition that the UE does not receive the deactivation, the UE always uses the resources specified by the first uplink grant to perform uplink transmission, where there are two transmission types, and therefore, based on the parameter value of the configuration parameter, the step of configuring the configuration parameter of the uplink channel in the grant-free manner includes at least one of the following steps:
(1) And authorizing uplink resources corresponding to the parameter values of the configuration parameters to the terminal equipment through the wireless resource control signaling, and sending an activation instruction to the terminal equipment, wherein the terminal equipment uses the authorized uplink resources to perform data transmission.
Specifically, configuration and activation/deactivation are performed by RRC through higher layer signaling.
(2) And authorizing uplink resources corresponding to the parameter values of the configuration parameters to the terminal equipment through the wireless resource control signaling, wherein the authorized terminal equipment uses the authorized uplink resources to perform data transmission under the condition of receiving an activation instruction in the downlink control information sent by the network side equipment.
Specifically, the configuration is performed by RRC signaling (i.e., the radio resource control signaling described above), and the activation/deactivation of the indication uplink grant is performed by DCI (Downlink Control Information ).
In this embodiment, the unlicensed resource allocation type may select any one of the configuration steps described above, and preferably selects the configuration step (1).
In some embodiments of the present application, the parameter value of the time domain resource parameter and the parameter value of the frequency domain resource parameter are the maximum value of the time domain resource and the frequency domain resource that can be directly used by the terminal device without authorization, respectively, where the time domain resource includes: the set of available time slots, the frequency domain resources include: subcarrier resource blocks.
In order to maximize the utilization rate of the uplink channel resources, the configuration of the configuration parameters of the uplink channel in the unlicensed mode further comprises the following steps: in the effective time, according to the pre-agreed resource usage rule, the terminal equipment is allocated with the unlicensed resource, and the unlicensed resource is used for data transmission with the terminal equipment, and the UE transmits uplink data by adopting the unlicensed resource only in the effective time; after the effective time, the video playing is started at this time, and the normal uplink channel resource scheduling mode can be restored, and the UE sends uplink data based on the dynamic scheduling instruction of the base station.
In specific implementation, the maximum unlicensed resource and the valid time can be configured, and the network side and the terminal agree on: the configuration parameters of the unlicensed resources correspond to the maximum resources which can be used in the effective time, and the service gradually increases the transmission resources of the uplink channels corresponding to the service in the effective time until the maximum unlicensed resources.
In some embodiments of the application, the resource usage rules (i.e. the conventions of the network side and the terminal UE) include: in a first time slot set, uplink data transmission is carried out by using a first number of subcarrier resource blocks, wherein the effective time comprises a plurality of available time slot sets; in a second time slot set, carrying out data transmission by using a second number of subcarrier resource blocks, wherein the second time slot set is the next available time slot set in the effective time, which is close to the first time slot set, and the second number is larger than the first number; and gradually increasing the number of subcarrier resource blocks which can be used by the terminal equipment in each available time slot set until the number of subcarrier resource blocks reaches the number corresponding to the parameter value of the frequency domain resource parameter.
Specifically, the UE gradually increases the available time domain resources and/or frequency domain resources in the effective time until the maximum value corresponding to the time domain resources and/or frequency domain resource parameter values.
Since the transmission window is gradually increased in the slow start stage of the TCP protocol, the rate requirement for the TCP ACK packet is not a constant value, but a gradually increased value, if the UE is directly configured with a fixed uplink unlicensed transmission resource according to the maximum rate requirement of the TCP ACK packet, a certain resource waste may be caused, so the application adopts a progressive unlicensed allocation scheme: the base station indicates that the value of the time domain resource and/or the frequency domain resource of the unlicensed resource is the maximum value which can be used by the UE, and the UE gradually increases the available time domain resource and/or frequency domain resource in the effective time until the maximum value is reached.
For example, the base station determines, based on the rate of the TCP ACK packet, that N subcarrier resource blocks are allocated to the UE, and the number of available timeslots corresponding to the effective time of the unlicensed resource is M, where N is an integer multiple of M, and the UE and the base station transmit using the unlicensed resource based on the following convention: using subcarrier resource blocks 0 to (N/M-1) in the first available time slot set; using subcarrier resource blocks 0 to (2*N/M-1) in the second available time slot set; … the subcarrier resource blocks 0 to (M.times.N/M-1) are used in the M-th available time slot set.
By adopting the progressive unlicensed allocation scheme, the time domain resources and/or the frequency domain resources are adaptively selected based on the rate requirement of the TCP ACK packet, so that the transmission resources of unused uplink channels can be shared for other users to use at the initial time, and the utilization rate of the uplink channel resources can be maximized and unnecessary resource waste can be reduced for the use in effective time.
By the steps, the uplink resource allocation mode is configured for the video service based on TCP transmission, so that the waiting time of uplink scheduling is saved, the transmission time delay of TCP ACK packets is reduced, the growth of a transmission window of a TCP slow start stage is improved, the transmission speed of downlink video service is improved, the playing time delay of the video service is further reduced, and the technical problems that in the related art, when terminal equipment sends data packets to a base station each time, the terminal equipment needs to request uplink resources to send the data packets to the base station, and the transmission time delay of the TCP ACK packets is longer in the slow start stage of TCP transmission, so that the transmission speed of the video service transmitted by adopting a TCP protocol is slow and the playing time delay is solved.
According to an embodiment of the present application, there is further provided a method for determining uplink channel resources, and fig. 3 is a schematic diagram of a flow of a method for determining uplink channel resources according to an embodiment of the present application, as shown in fig. 3, where the method includes the following steps:
step S302, when the current service is a video service transmitted based on a transmission control protocol TCP, determining unlicensed resources configured based on configuration parameters in a slow start stage of a TCP layer of the current service to determine transmission resources of an uplink channel corresponding to the current service.
The configuration parameters comprise maximum unlicensed resources, and determining unlicensed resources configured based on the configuration parameters in a slow start stage of a TCP layer of the current service to determine transmission resources of an uplink channel corresponding to the current service comprises: under the condition that the maximum unlicensed resource is not exceeded, the unlicensed resource of the uplink channel corresponding to the current service is gradually increased based on the convention; or, the configuration parameter includes a gradually increased unlicensed resource, and determining the unlicensed resource configured based on the configuration parameter in the slow start stage of the TCP layer of the current service to determine the transmission resource of the uplink channel corresponding to the current service includes: and gradually increasing the transmission resources of the uplink channel corresponding to the current service based on the gradually increased unlicensed resources.
Specifically, based on the maximum unlicensed resource and the effective time configured by the network side, gradually increasing the transmission resource corresponding to the current service in the effective time until the maximum unlicensed resource.
In some embodiments of the present application, the parameter value of the time domain resource parameter and the parameter value of the frequency domain resource parameter in the configuration parameter are maximum values of the time domain resource and the frequency domain resource that can be directly used by the terminal device without authorization, and the time domain resource includes: the set of available time slots, the frequency domain resources include: subcarrier resource blocks.
In order to maximize the utilization rate of the uplink channel resources, the configuration of the configuration parameters of the uplink channel in the unlicensed mode further comprises the following steps: in the effective time, according to the pre-agreed resource usage rule, the terminal equipment is allocated with the unlicensed resource, and the unlicensed resource is used for data transmission with the terminal equipment, and the UE transmits uplink data by adopting the unlicensed resource only in the effective time; after the effective time, the video playing is started at this time, and the normal uplink channel resource scheduling mode can be restored, and the UE sends uplink data based on the dynamic scheduling instruction of the base station.
In a specific implementation, the network side can configure maximum unlicensed resources and valid time, and meanwhile, the network side and the terminal agree on: the configuration parameters of the unlicensed resources correspond to the maximum resources which can be used in the effective time, and the service gradually increases the transmission resources of the uplink channels corresponding to the service in the effective time until the maximum unlicensed resources.
In some embodiments of the application, the resource usage rules include: in a first time slot set, uplink data transmission is carried out by using a first number of subcarrier resource blocks, wherein the effective time comprises a plurality of available time slot sets; in a second time slot set, carrying out data transmission by using a second number of subcarrier resource blocks, wherein the second time slot set is the next available time slot set in the effective time, which is close to the first time slot set, and the second number is larger than the first number; and gradually increasing the number of subcarrier resource blocks which can be used by the terminal equipment in each available time slot set until the number of subcarrier resource blocks reaches the number corresponding to the parameter value of the frequency domain resource parameter.
Specifically, the UE gradually increases the available time domain resources and/or frequency domain resources in the effective time until the maximum value corresponding to the time domain resources and/or frequency domain resource parameter values.
Since the transmission window is gradually increased in the slow start stage of the TCP protocol, the rate requirement for the TCP ACK packet is not a constant value, but a gradually increased value, if the UE is directly configured with a fixed uplink unlicensed transmission resource according to the maximum rate requirement of the TCP ACK packet, a certain resource waste may be caused, so the application adopts a progressive unlicensed allocation scheme: the base station indicates that the value of the time domain resource and/or the frequency domain resource of the unlicensed resource is the maximum value which can be used by the UE, and the UE gradually increases the available time domain resource and/or frequency domain resource in the effective time until the maximum value is reached.
For example, the base station determines, based on the rate of the TCP ACK packet, that N subcarrier resource blocks are allocated to the UE, and the number of available timeslots corresponding to the effective time of the unlicensed resource is M, where N is an integer multiple of M, and the UE and the base station transmit using the unlicensed resource based on the following convention: using subcarrier resource blocks 0 to (N/M-1) in the first available time slot set; using subcarrier resource blocks 0 to (2*N/M-1) in the second available time slot set; … the subcarrier resource blocks 0 to (M.times.N/M-1) are used in the M-th available time slot set.
By adopting the progressive unlicensed allocation scheme, the time domain resources and/or the frequency domain resources are adaptively selected based on the rate requirement of the TCP ACK packet, so that the transmission resources of unused uplink channels can be shared for other users to use at the initial time, and the utilization rate of the uplink channel resources can be maximized and unnecessary resource waste can be reduced for the use in effective time.
According to the embodiment of the application, an embodiment of a data transmission method is also provided. Fig. 4 is a flowchart of a data transmission method according to an embodiment of the present application. As shown in fig. 4, the method comprises the steps of:
step 402, determining a network protocol type of a streaming media service (video service).
In some embodiments of the present application, determining the network protocol type of the streaming media service includes: determining a service quality parameter according to a service quality identifier corresponding to the streaming media service, wherein the service quality parameter comprises at least one of the following: priority, time delay, packet error rate; and determining the network protocol type of the streaming media service by analyzing the service quality parameters.
Specifically, the service type is determined to be video service transmitted based on a TCP (Transmission Control Protocol ) protocol (i.e., the preset protocol type) based on a QoS (Quality of Service ) parameter (i.e., the quality of service parameter described above). In a wireless communication system, qoS parameters may be used to measure transmission quality requirements of different services, including priority, delay, packet error rate, etc. Different traffic types correspond to different QoS parameters.
As an alternative embodiment, the service type may be determined to be video service transmitted based on the TCP protocol based on a 5QI value (5G QoS Identifier,5G QoS identification) (i.e. the quality of service identification described above).
For example, the mapping relation between different 5QI, qoS specific parameter values and service instances given by Table 5.7.4-1 of 3GPP 23.501 protocol can be used for determining video service transmitted based on TCP protocol, and when the 5QI value is 6/8/9/10, the service type corresponding to the bearer can be determined to be video service transmitted based on TCP protocol.
The service type is determined to be the video service based on TCP protocol transmission based on the 5QI value, and an unlicensed configuration scheme can be adopted for configuring the uplink for the UE in the radio bearer establishment stage, so that on one hand, the RRC signaling interaction flow can be saved, and on the other hand, the scheduling waiting time delay of a TCP ACK packet can be minimized.
In some embodiments of the present application, determining the network protocol type of the streaming media service further comprises: the method comprises the steps of obtaining a uniform resource locator in a streaming media playing request, wherein the streaming media playing request is a request sent by a terminal device and used for requesting streaming media number from a target website, and the uniform resource locator is used for identifying the target website; and determining the network protocol type corresponding to the uniform resource locator by matching the uniform resource locator with the website in the preset website database, wherein the preset website database comprises a plurality of websites and the network protocol type corresponding to the websites.
Specifically, for the video service embedded in HTTP, when the user clicks a link on a web page to watch a video, GET mode is used to request to acquire a file. The HTTP GET request contains URL information (uniform resource locator, i.e., the uniform resource locator described above), and based on this URL information, it can be determined that the service type is video service transmitted based on the TCP protocol.
For example, the network address information (i.e. the preset network address database) of N most commonly used HTTP (Hyper Text Transfer Protocol ) embedded video services may be stored based on the historical statistics result, and if the URL information in the HTTP GET request is consistent with the stored network address, it is determined that the service is a video service transmitted based on the TCP protocol, where the value of N may be adjusted according to the actual requirement.
In some embodiments of the present application, determining the network protocol type of the streaming media service further comprises: acquiring a target data packet transmitted by a streaming media service; and determining the network protocol type of the streaming media service by carrying out depth detection on the message content and the message structure of the target data packet.
Specifically, the service type is determined based on the service identification result of the DPI (Deep Packet Inspection ).
Step 404, determining that the resource allocation mode of the uplink channel corresponding to the streaming media service is an unlicensed mode when the network protocol type is a preset protocol type.
In some embodiments of the present application, determining that a resource allocation manner of an uplink channel corresponding to a streaming media service is an unlicensed manner includes the following steps: determining a parameter value of a configuration parameter of an uplink channel corresponding to the streaming media service according to the transmission rate of a data confirmation packet in the streaming media service, wherein the data confirmation packet is a data packet fed back by the terminal equipment after receiving the streaming media data and is used for representing successful receiving of the streaming media data; and configuring the resource allocation mode of the uplink channel into an unlicensed mode according to the parameter value of the configuration parameter, wherein when the terminal equipment sends data to the network side equipment through the uplink channel in the unlicensed mode, the uplink resource corresponding to the configured configuration parameter is directly used for transmission without applying the uplink resource to the network side equipment.
In some embodiments of the present application, determining a parameter value of a configuration parameter of an uplink channel corresponding to a streaming media service according to a transmission rate of a data acknowledgement packet in the streaming media service includes: determining an IP protocol corresponding to the data confirmation packet; determining the transmission rate of the data acknowledgement packet according to a preset calculation rule corresponding to the IP protocol, wherein the preset calculation rule is a rule for calculating the transmission rate of the data acknowledgement packet; determining a parameter value of a configuration parameter according to the transmission rate of the data acknowledgement packet, wherein the maximum transmission rate provided by an uplink resource corresponding to the parameter value of the configuration parameter is not less than the transmission rate of the data acknowledgement packet, and the uplink resource comprises at least one of the following components: time domain resources, frequency domain resources, modulation coding scheme, and antenna ports.
In some embodiments of the present application, the preset calculation rule includes an objective function, and the objective function includes an adjustment coefficient; calculating the transmission rate of the data acknowledgement packet according to the objective function corresponding to the IP protocol includes: determining an adjustment coefficient according to the transmission frequency of the data confirmation packet; substituting the adjustment coefficient into the objective function to calculate to obtain the transmission rate of the data acknowledgement packet, wherein the IP protocol comprises: IPv4 and IPv6.
Specifically, the formula (i.e., the objective function) for calculating the transmission rate of the TCP ACK packet (i.e., the data acknowledgement packet described above) is as follows:
(1)
(2)
wherein, the formula (1) corresponds to an IPv4 data packet, the formula (2) corresponds to an IPv6 data packet, rwnd is a receiving window corresponding to a TCP protocol, the unit is bytes, the MSS can be configured according to an empirical value, the MSS is the maximum message segment length of the TCP, for example, 1460 bytes, the RTT is the loopback time delay value of the TCP layer,to adjust the coefficients, the transmission frequency of the TCP ACK packet is dependent.
Specifically, the base station (i.e., the network side device) may determine, according to the transmission rate of the TCP ACK packet (i.e., the data acknowledgement packet) calculated by the above formula, relevant parameter values (i.e., parameter values of the above configuration parameters) such as time domain resources, frequency domain resources, modulation coding schemes, antenna ports of the uplink unlicensed resources, where the air interface rate corresponding to the determined relevant parameter values such as allocated time domain resources, frequency domain resources, modulation coding schemes, antenna ports is greater than or equal to the rate of the TCP ACK packet.
The specific parameter value corresponding to the unlicensed resource is determined based on the rate of the TCP ACK packet, so that the waste of uplink channel resources can be avoided and the utilization rate of the uplink channel resources can be improved on the premise of meeting the target transmission rate of the TCP ACK packet.
And step 406, transmitting data with the terminal equipment through the unlicensed resources allocated to the terminal equipment according to the unlicensed mode.
In some embodiments of the present application, the step of configuring the resource allocation manner of the uplink channel to be an unlicensed manner according to the parameter value of the configuration parameter includes at least one of the following: authorizing uplink resources corresponding to parameter values of configuration parameters to terminal equipment through radio resource control signaling, and sending an activation instruction to the terminal equipment, wherein the terminal equipment uses the authorized uplink resources to perform data transmission; or authorizing the uplink resource corresponding to the parameter value of the configuration parameter to the terminal equipment through the radio resource control signaling, wherein the authorized terminal equipment uses the authorized uplink resource to perform data transmission under the condition of receiving the activation instruction in the downlink control information sent by the network side equipment.
Specifically, after determining a specific parameter value of the configuration parameter, the base station configures the uplink of the UE by RRC signaling (i.e., the radio resource control signaling described above) to adopt an unlicensed resource allocation manner, and specific parameters corresponding to unlicensed resources may include, but are not limited to: time domain resources, frequency domain resources, modulation coding scheme, antenna ports, SRS (Sounding Reference Signal, channel sounding reference signal) resource indication, DMRS (Demodulation Reference Signal ), active time.
Specifically, the uplink grant-free mode is an uplink resource allocation mode supported by the current NR (New Radio) network, that means that the gNB activates an uplink grant to a UE (User Equipment) (i.e., the terminal device) once, and under the condition that the UE does not receive deactivation, the UE always uses the resources specified by the first uplink grant to perform uplink transmission, and the uplink grant-free mode has two transmission types, so that, according to the parameter value of the configuration parameter, the step of configuring the resource allocation mode of the uplink channel as the grant-free mode includes at least one of the following steps: (1) Configured by RRC through higher layer signaling and activated/deactivated; (2) Configured by RRC signaling (i.e., radio resource control signaling described above), and indicated by DCI (Downlink Control Information ).
In some embodiments of the application, the configuration parameters include at least one of: the UE transmits uplink data by adopting unlicensed resources only in the effective time, the time domain resource parameters and the frequency domain resource parameters; after the effective time, the video playing is started at this time, and the normal uplink channel resource scheduling mode can be restored, and the UE sends uplink data based on the dynamic scheduling instruction of the base station.
The parameter values of the time domain resource parameter and the frequency domain resource parameter are the maximum values of the usable time domain resource and frequency domain resource respectively, and the time domain resource comprises: the set of available time slots, the frequency domain resources include: subcarrier resource blocks; the data transmission with the terminal equipment through the unlicensed resource allocated to the terminal equipment according to the unlicensed mode comprises the following steps: in a first time slot set, controlling terminal equipment to use a first number of subcarrier resource blocks to perform data transmission, wherein the effective time comprises a plurality of available time slot sets; in a second time slot set, the control terminal equipment uses a second number of subcarrier resource blocks to carry out data transmission, wherein the second time slot set is a next available time slot set which is close to the first time slot set in the effective time, and the second number is larger than the first number; and gradually increasing the number of subcarrier resource blocks which can be used by the terminal equipment in each available time slot set until the number of subcarrier resource blocks reaches the number corresponding to the parameter value of the frequency domain resource parameter.
Specifically, the UE gradually increases the available time domain resources and/or frequency domain resources in the effective time until the maximum value corresponding to the time domain resources and/or frequency domain resource parameter values.
Since the transmission window is gradually increased in the slow start stage of the TCP protocol, the rate requirement for the TCP ACK packet is not a constant value, but a gradually increased value, if the UE is directly configured with a fixed uplink unlicensed transmission resource according to the maximum rate requirement of the TCP ACK packet, a certain resource waste may be caused, so the application adopts a progressive unlicensed allocation scheme: the base station indicates that the value of the time domain resource and/or the frequency domain resource of the unlicensed resource is the maximum value which can be used by the UE, and the UE gradually increases the available time domain resource and/or frequency domain resource in the effective time until the maximum value is reached.
For example, the base station determines, based on the rate of the TCP ACK packet, that N subcarrier resource blocks are allocated to the UE, and the number of available timeslots corresponding to the effective time of the unlicensed resource is M, where N is an integer multiple of M, and the UE and the base station transmit using the unlicensed resource based on the following convention: using subcarrier resource blocks 0 to (N/M-1) in the first available time slot set; using subcarrier resource blocks 0 to (2*N/M-1) in the second available time slot set; … the subcarrier resource blocks 0 to (M.times.N/M-1) are used in the M-th available time slot set.
By adopting the progressive unlicensed allocation scheme, the time domain resources and/or the frequency domain resources are adaptively selected based on the rate requirement of the TCP ACK packet, so that the transmission resources of unused uplink channels can be shared for other users to use at the initial time, and the utilization rate of the uplink channel resources can be maximized and unnecessary resource waste can be reduced for the use in effective time.
By the steps, the uplink resource allocation mode is configured for the video service based on TCP transmission, so that the waiting time of uplink scheduling is saved, the transmission time delay of TCP ACK packets is reduced, the growth of a transmission window of a TCP slow start stage is improved, the transmission speed of downlink video service is improved, the playing time delay of the video service is further reduced, and the technical problems that in the related art, when terminal equipment sends data packets to a base station each time, the terminal equipment needs to request uplink resources to send the data packets to the base station, and the transmission time delay of the TCP ACK packets is longer in the slow start stage of TCP transmission, so that the transmission speed of the video service transmitted by adopting a TCP protocol is slow and the playing time delay is solved.
According to an embodiment of the present application, there is also provided a network side device, including: the system comprises a memory and a processor, wherein the processor is used for running a program stored in the memory, and the program runs to execute the following uplink channel resource allocation method: when the current service is a video service transmitted based on a Transmission Control Protocol (TCP), configuring a resource allocation mode of an uplink channel corresponding to the current service as an unlicensed mode when a TCP layer of the current service is in a slow start stage, configuring unlicensed resources of the uplink channel corresponding to the current service based on configuration parameters, and: the configuration parameters comprise maximum unlicensed resources, so that the terminal equipment gradually increases the transmission resources of the uplink channels corresponding to the current service based on convention, wherein the maximum value of the transmission resources does not exceed the maximum unlicensed resources; or the configuration parameter comprises the gradually increased unlicensed resource, so that the terminal equipment gradually increases the transmission resource of the uplink channel corresponding to the current service based on the gradually increased unlicensed resource.
It should be noted that, the network side device provided in the present embodiment may be used to execute the uplink channel resource allocation method shown in fig. 2, so that the explanation of the uplink channel resource allocation method is also applicable to the embodiment of the present application, and is not repeated here.
According to an embodiment of the present application, there is also provided a terminal device including: the system comprises a memory and a processor, wherein the processor is used for running a program stored in the memory, and the program runs to execute the following uplink channel resource determining method: when the current service is a video service transmitted based on a Transmission Control Protocol (TCP), determining unlicensed resources configured based on configuration parameters at a slow start stage of a TCP layer of the current service so as to determine transmission resources of an uplink channel corresponding to the current service; the configuration parameters comprise maximum unlicensed resources, and determining unlicensed resources configured based on the configuration parameters in a slow start stage of a TCP layer of the current service to determine transmission resources of an uplink channel corresponding to the current service comprises: under the condition that the maximum unlicensed resource is not exceeded, the unlicensed resource of the uplink channel corresponding to the current service is gradually increased based on the convention; or, the configuration parameter includes a gradually increased unlicensed resource, and determining the unlicensed resource configured based on the configuration parameter in the slow start stage of the TCP layer of the current service to determine the transmission resource of the uplink channel corresponding to the current service includes: and gradually increasing the transmission resources of the uplink channel corresponding to the current service based on the gradually increased unlicensed resources.
It should be noted that, the terminal device provided in this embodiment may be used to execute the uplink channel resource determining method shown in fig. 3, so that the explanation about the uplink channel resource determining method is also applicable to the embodiment of the present application, and is not repeated here.
According to an embodiment of the present application, there is also provided an embodiment of a data transmission system. Fig. 5 is a schematic structural diagram of an uplink channel resource allocation system according to an embodiment of the present application. As shown in fig. 5, the system includes: a network-side device 50 and a terminal device 52.
The network side device 50 is configured to determine that the current service is a video service based on TCP transmission; and determining that the resource allocation mode of the uplink channel corresponding to the current service is an unlicensed mode.
The terminal device 52 is configured to perform uplink data transmission with the network side device through the uplink channel by using the unlicensed resource allocated in the unlicensed manner, so as to execute the current service.
The application configures the uplink to adopt the unlicensed resource allocation mode aiming at the video service based on TCP transmission, can save the waiting time of uplink scheduling and reduce the transmission delay of TCP ACK packets, thereby improving the growth of a transmission window in a TCP slow start stage, improving the transmission speed of the downlink video service and further reducing the playing delay of the video service.
The embodiment of the application also provides a nonvolatile storage medium, which comprises a stored computer program, wherein the equipment of the nonvolatile storage medium executes the following uplink channel resource allocation method by running the computer program: when the current service is a video service transmitted based on a Transmission Control Protocol (TCP), configuring a resource allocation mode of an uplink channel corresponding to the current service as an unlicensed mode.
The foregoing embodiment numbers of the present application are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
In the foregoing embodiments of the present application, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.
In the several embodiments provided in the present application, it should be understood that the disclosed technology may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units, for example, may be a logic function division, and may be implemented in another manner, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing is merely a preferred embodiment of the present application and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present application, which are intended to be comprehended within the scope of the present application.

Claims (10)

1. An uplink channel resource allocation method, comprising:
when the current service is a video service transmitted based on a Transmission Control Protocol (TCP), configuring a resource allocation mode of an uplink channel corresponding to the current service as an authorization-free mode when a TCP layer of the current service is in a slow start stage, wherein the method comprises the following steps: determining a configuration parameter of unlicensed resources of an uplink channel corresponding to the current service based on a target transmission rate of a TCP ACK packet, wherein the target transmission rate is a transmission rate of the TCP ACK packet at the end of the slow start stage, and determining the configuration parameter of unlicensed resources of the uplink channel corresponding to the current service based on the target transmission rate of the TCP ACK packet includes: determining an adjustment coefficient according to the transmission frequency of the TCP ACK packet, wherein the adjustment coefficient is positively correlated with the transmission frequency; updating the target transmission rate of the TCP ACK packet based on the adjustment coefficient; determining configuration parameters of unlicensed resources of an uplink channel corresponding to the current service based on the updated target transmission rate of the TCP ACK packet;
Configuring unlicensed resources of the uplink channel corresponding to the current service based on configuration parameters, and:
the configuration parameters comprise maximum unlicensed resources, so that the terminal equipment gradually increases the transmission resources of the uplink channels corresponding to the current service based on convention, wherein the maximum value of the transmission resources does not exceed the maximum unlicensed resources;
or alternatively, the process may be performed,
the configuration parameters comprise gradually increased unlicensed resources, so that the terminal equipment gradually increases the transmission resources of the uplink channel corresponding to the current service based on the gradually increased unlicensed resources.
2. The uplink channel resource allocation method according to claim 1, wherein the method further comprises:
and judging whether the current service is a video service based on TCP transmission or not based on at least one of a service quality parameter QoS configured by a communication node CN aiming at the current service, a uniform resource locator URL carried in a hyper text transfer protocol HTTP packet and a deep data packet detection DPI result corresponding to the HTTP packet.
3. The method according to claim 1, wherein the air interface rate corresponding to the parameter value of the configuration parameter is not less than the target transmission rate of the TCP ACK packet.
4. The method of uplink channel resource allocation according to claim 1, wherein the allocation parameters further comprise at least one of: time domain resource parameters, frequency domain resource parameters, modulation and coding scheme parameters, antenna port parameters, sounding reference signal SRS resource indication parameters and modulation demodulation signal DMRS; and/or, the configuration parameters further include effective time of the uplink channel resource configuration mode corresponding to the current service configured as an unlicensed mode.
5. The method for configuring uplink channel resources according to claim 1, wherein before determining the configuration parameters of unlicensed resources of the uplink channel corresponding to the current service based on the target transmission rate of the TCP ACK packet, further comprises:
and calculating based on a receiving window rwnd corresponding to the TCP layer, a maximum message segment length MSS, a loopback time delay value RTT and an IP packet head size corresponding to the TCP ACK packet to obtain a target transmission rate of the TCP ACK packet.
6. The method for configuring uplink channel resources according to claim 1, wherein configuring the uplink channel resource allocation manner corresponding to the current service when the TCP layer of the current service is in a slow start stage as an unlicensed manner comprises:
Activating/deactivating the unlicensed mode through Radio Resource Control (RRC) signaling, and configuring the unlicensed resource based on the configuration parameters through the RRC signaling; or alternatively, the process may be performed,
and activating/deactivating the unlicensed mode through Downlink Control Information (DCI), and configuring the unlicensed resource based on the configuration parameters through the RRC signaling.
7. An uplink channel resource determining method, comprising:
when the current service is a video service transmitted based on a Transmission Control Protocol (TCP), determining unlicensed resources configured based on configuration parameters in a slow start stage of a TCP layer of the current service to determine transmission resources of an uplink channel corresponding to the current service, wherein the configuration parameters are determined by the following steps: determining the configuration parameters of the unlicensed resources of the uplink channel corresponding to the current service based on the target transmission rate of the TCP ACK packet, where the target transmission rate is the transmission rate of the TCP ACK packet at the end of the slow start stage, and determining the configuration parameters of the unlicensed resources of the uplink channel corresponding to the current service based on the target transmission rate of the TCP ACK packet includes: determining an adjustment coefficient according to the transmission frequency of the TCP ACK packet, wherein the adjustment coefficient is positively correlated with the transmission frequency; updating the target transmission rate of the TCP ACK packet based on the adjustment coefficient; determining configuration parameters of unlicensed resources of an uplink channel corresponding to the current service based on the updated target transmission rate of the TCP ACK packet;
The configuration parameter includes a maximum unlicensed resource, and determining, in a slow start stage of the TCP layer of the current service, the unlicensed resource configured based on the configuration parameter, so as to determine a transmission resource of an uplink channel corresponding to the current service includes: under the condition that the maximum unlicensed resource is not exceeded, the unlicensed resource of the uplink channel corresponding to the current service is gradually increased based on convention;
or alternatively, the process may be performed,
the configuration parameters comprise gradually increased unlicensed resources, and the determining the unlicensed resources configured based on the configuration parameters in the slow start stage of the TCP layer of the current service to determine the transmission resources of the uplink channel corresponding to the current service comprises: and gradually increasing the transmission resources of the uplink channel corresponding to the current service based on the gradually increased unlicensed resources.
8. A network side device, comprising: a memory and a processor for executing a program stored in the memory, wherein the program is executed to perform the uplink channel resource allocation method according to any one of claims 1 to 6.
9. A terminal device, comprising: a memory and a processor for executing a program stored in the memory, wherein the program when executed performs the uplink channel resource determination method of claim 7.
10. A non-volatile storage medium, wherein the non-volatile storage medium includes a stored computer program, and wherein a device in which the non-volatile storage medium is located executes the uplink channel resource allocation method according to any one of claims 1 to 6 or the uplink channel resource determination method according to claim 7 by running the computer program.
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