WO2017185869A1

WO2017185869A1 - Data transmission method and apparatus, and computer storage medium

Info

Publication number: WO2017185869A1
Application number: PCT/CN2017/074702
Authority: WO
Inventors: 黄侃
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-04-25
Filing date: 2017-02-24
Publication date: 2017-11-02
Also published as: CN107306424A

Abstract

Provided are a data transmission method and apparatus, and a computer storage medium. The method comprises: determining priority information about received data; filling the priority information in a packet data convergence protocol (PDCP) frame for bearing data; and sending the PDCP frame, where the priority information is filled, to a remote processing unit, wherein the remote processing unit comprises two or more radio bearers (RBs) for sending data, and data with different priorities is sent on different RBs.

Description

Data transmission method and device, computer storage medium

Technical field

The present invention relates to the field of communications, and in particular to a data transmission method and apparatus, and a computer storage medium.

Background technique

With the continuous evolution of wireless communication technologies and protocol standards, the mobile packet service has undergone tremendous development, and the data throughput capability of a single terminal has been continuously improved. For example, the Long Term Evolution (LTE) system can support data transmission with a maximum downlink rate of 100 Mbps in a 20 M bandwidth. In subsequent LTE enhanced systems and subsequent 5G systems, the data transmission rate will be further improved. Even tens of Gbps can be reached.

The inflated growth of terminal data traffic has put tremendous pressure and challenge on the service capabilities and deployment strategies of mobile networks. On the one hand, operators need to enhance existing network deployment and communication technologies. On the other hand, they hope to accelerate the promotion of new technologies and network expansion, so as to achieve the goal of rapidly improving network performance. Since the development of mobile communication systems, it has become more and more difficult to provide economical, flexible, and high-capacity services only by enhancing the macro network. Therefore, it is necessary to introduce ultra-dense and flexible small-base station deployment. The deployment of ultra-dense small base stations is bound to bring frequent inter-station handover and signal interference problems, and the above problems will lead to the development of network architecture to C/U separation and control concentration. In recent years, the Evolved-Universal Mobile Telecommunications System Terrestrial Radio Access Network (E-UTRAN) architecture is generally composed of a Baseband Unit (BBU) and a remote unit. The Radio Remote Unit (RRU) is a kind of C-RAN (Centralized, Cooperative, Cloud & Clean-Radio Access Network) network deployed in many countries and regions around the world. In the existing architecture, the BBU, The pre-transmission interface between the RRUs uses a Common Public Radio Interface (CPRI). Since the CPRI interface transmits In-phase Quadrature (IQ) signals processed by physical layer coding and modulation, the CPRI interface has large requirements on transmission delay and bandwidth. Especially when the air interface rate is increased to tens of Gbps, the traffic demand of the CPRI interface will rise to the Tbps level, which brings great pressure on the network deployment cost and deployment difficulty. Therefore, there is a problem in the related art that cannot adapt to large-flow data processing.

In view of the above problems, an effective solution has not been proposed in the related art.

Summary of the invention

The embodiment of the invention provides a data transmission method and device, and a computer storage medium, so as to at least solve the problem that the related art cannot adapt to large-flow data processing.

According to an embodiment of the present invention, a data transmission method is provided, including: determining priority information of received data; and filling the priority information into a packet data convergence protocol PDCP frame for carrying the data; Transmitting the PDCP frame that is filled with the priority information to the remote processing unit, where the remote processing unit includes two or more radio bearers RBs for transmitting data, and data of different priorities are on different RBs. Send it.

In an embodiment of the present invention, the priority information of the received data includes one of: receiving the priority information from the core network CN, wherein the priority information is that the CN corresponds to the data. The attribute determined by the attribute of the service and/or the indication of the service provider; the priority information is determined according to an attribute of the service corresponding to the data and/or an indication of the service provider.

In an embodiment of the present invention, the filling the priority information into the packet data convergence protocol (PDCP) frame for carrying the data includes: filling the priority information into a data header of the PDCP frame. In the idle field.

In an embodiment of the present invention, the filling of the priority information into a packet data convergence protocol (PDCP) frame for carrying the data includes: determining that the priority of the data is greater than 0 When the total amount of the data packet reaches the first threshold, the priority information is filled into the PDCP frame for carrying the data packet.

In an embodiment of the present invention, after determining the priority information of the received data, the method further includes: when determining that the data flow of the corresponding predetermined priority in the data exceeds a second threshold And allocating, for the data packet included in the maximum IP flow in the data flow, a flow identifier Flow Id for identifying the sequence of the data; filling the allocated Flow Id into a PDCP frame for carrying the data packet .

In an embodiment of the present invention, the method further includes: when determining that the RB included in the remote processing unit needs to be adjusted, sending an indication message to the control plane, where the indication message is used to indicate the control plane Adjusting the RBs included in the remote processing unit.

According to another embodiment of the present invention, a data transmission method is provided, including: receiving a packet data convergence protocol PDCP frame carrying data; determining a priority of the data according to priority information filled in the PDCP frame; Transmitting the data to the radio bearer RB in the remote processing unit according to the priority of the data, where the remote processing unit includes two or more radio bearers RBs for transmitting data, and RBs of different priorities. Send on different RBs.

In an embodiment of the present invention, determining the priority of the data according to the priority information that is filled in the PDCP frame includes: the priority information that is filled in an idle field in a data header of the PDCP frame. Determine the priority of the data.

In an embodiment of the present invention, the transmitting the data to the radio bearer RB in the remote processing unit according to the priority of the data includes: determining an RB corresponding to the priority according to a priority of the data; The data is sent to the RB corresponding to the priority.

In an embodiment of the present invention, the transmitting the data to the radio bearer RB in the remote processing unit according to the priority of the data includes: according to a priority of the data and a filling in the PDCP frame a stream identifier Flow Id identifying the order of the data to send the data Send to the RB in the remote processing unit.

In an embodiment of the present invention, before the data is sent to the radio bearer RB in the remote processing unit according to the priority of the data, the method further includes: determining that the control plane is at least one of the following manners Determining a predetermined number of RBs after determining the number of RBs: determining a maximum number of used RBs according to a user subscription rate and a terminal processing capability; first determining a minimum number of used RBs, and determining according to terminal processing capabilities and/or received indication information Adjust the number of RBs.

According to another embodiment of the present invention, a data transmission apparatus is provided, including: a first determining module, configured to determine priority information of received data; and a filling module, configured to fill the priority information into And a first sending module, configured to send the PDCP frame filled with the priority information to the remote processing unit, where the remote processing unit includes two The above is used for transmitting radio bearers RB, and data of different priorities is transmitted on different RBs.

According to another embodiment of the present invention, a data transmission apparatus is provided, including: a receiving module, configured to receive a packet data convergence protocol PDCP frame carrying data; and a second determining module, configured to fill according to the PDCP frame The priority information determines the priority of the data; the second sending module is configured to send the data to the radio bearer RB in the remote processing unit according to the priority of the data, where the remote processing unit There are two or more radio bearers RBs for transmitting data, and RBs of different priorities are transmitted on different RBs.

According to yet another embodiment of the present invention, a computer storage medium is also provided. The computer storage medium is arranged to store program code for performing the above method.

According to the technical solution of the embodiment of the present invention, since the PDCP frame carrying the data carries the priority information of the data at the same time, when the data is transmitted, the data may be distributed to different RBs according to the priority of the data for transmission. Therefore, the hierarchical processing of large-flow data is realized, and the problem that the related technology cannot adapt to the processing of large-flow data is solved, and the purpose of hierarchical transmission of large-flow data and improvement of the data transmission rate are achieved.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a block diagram showing the structure of a centralized processing unit and a remote processing unit according to an embodiment of the present invention;

2 is a flow chart of a first method of data transmission according to an embodiment of the present invention;

3 is a schematic structural diagram of a PDCP frame in the related art;

4 is a schematic structural diagram of a PDCP frame according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of packet classification according to an alternative embodiment of the present invention; FIG.

6 is a flowchart of a second method of data data transmission according to an embodiment of the present invention;

FIG. 7 is a structural block diagram of a first data transmission apparatus according to an embodiment of the present invention; FIG.

FIG. 8 is a block diagram showing the structure of a second type of data transmission apparatus according to an embodiment of the present invention.

detailed description

The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

It is to be understood that the terms "first", "second" and the like in the specification and claims of the present invention are used to distinguish similar objects, and are not necessarily used to describe a particular order or order.

In order to reduce the transmission requirements of the pre-transmission interface between the BBU and the RRU in the related art, multiple pre-transmission interfaces may be introduced outside the CPRI interface, and different pre-transmission interfaces correspond to different BBU and RRU user plane functions. In the embodiment of the present invention, the re-divided BBU and the RRU are respectively named as a centralized processing unit and a remote processing unit, because the re-divided RRU may also include a part of the baseband function.

Since the air interface signal of the 5th Generation mobile communication technology (5G) changes rapidly, fast segmentation is required. Adjustment and retransmission, Radio Link Control (RLC) and Media Access Control (MAC) can be deployed to the remote processing unit, and packet data convergence protocol (Packet Data Convergence) The protocol (referred to as PDCP) has a large amount of traffic and needs to be connected to multiple remote processing units for switching. Therefore, the PDCP can be deployed in a centralized processing unit, as shown in FIG. 1 . The invention is illustrated by way of example.

The air interface rate of the single-user device (User Equipment, UE for short) reaches tens of Gbps, which may include multiple services, such as data services, voice services, or virtual reality, in order to better guarantee the transmission sequence and services. Quality priority, a radio bearer (Radio Bearer, RB for short) can be established. Each RB can correspond to a set of RLC and MAC instances, and each RB has its own quality of service (QoS). Parameters. On the other hand, even if there is no difference in priority, each stream data of the application layer can be sent in parallel in different RBs, which improves the efficiency of transmitting data, and can use separate RLC to more efficiently deal with out-of-order and packet loss. Retransmission situation. In this embodiment, the PDCP is required to notify different RLCs of different service quality indications and offloading indications, and each packet is corresponding to a different RLC and MAC instance.

In this embodiment, a data transmission method is provided. FIG. 2 is a flowchart of a first data transmission method according to an embodiment of the present invention. As shown in FIG. 2, the process includes the following steps:

Step S202, determining priority information of the received data;

Step S204, the foregoing priority information is filled into a packet data convergence protocol PDCP frame for carrying data;

Step S206, the PDCP frame filled with the priority information is sent to the remote processing unit, where the remote processing unit includes two or more radio bearers RBs for transmitting data, and different priorities of the data are in different RBs. Send on.

The foregoing operation may be PDCP, and the PDCP frame is sent to the remote processing list. The element may be sent to the RLC dispatching module in the remote processing unit, and then the RLC then allocates the data to the corresponding RB according to the priority of the data for transmission.

According to the present invention, since the PDCP frame carrying the data carries the priority information of the data at the same time, when the data is transmitted, the data can be distributed to different RBs according to the priority of the data for transmission, thereby realizing The hierarchical processing of large-flow data solves the problem that the related technologies cannot adapt to the processing of large-flow data, and achieves the purpose of hierarchical transmission of large-flow data and improvement of data transmission rate.

In an optional embodiment, determining the priority information of the received data includes one of: receiving the foregoing priority information from a core network (Core Network, referred to as CN), wherein the priority information is CN according to the data. The information determined by the attribute of the corresponding service and/or the indication of the service provider; the priority information is determined according to the attribute of the service corresponding to the data and/or the indication of the service provider. That is, in the present embodiment, the priority of the data may be allocated by the CN or may be allocated by the PDCP. The following describes how to set the priority indication field:

The data frame (that is, the PDCP frame carrying the data) may be classified according to the service characteristics of the application layer. If the application layer is based on the Control Transmission Protocol (TCP), the user datagram. The User Datagram Protocol (UDP) is basically classified according to the quintuple (ie, the sender IP address, the sender port number, the receiver IP address, the receiver port number, and the protocol number). The following two methods for determining the priority are described separately:

Manner 1: The priority of the data frame is specified by the CN according to the configuration information. The core network is based on the characteristics of the service itself (for example, video service) and the special priority of the service provider (for example, some users require WeChat data to take precedence). To indicate the priority, and EUTRAN (mainly PDCP) is responsible for mapping the priority to QoS (ie, the priority of the data can be reflected on the QoS level), if the application priority of the CN is more than the Qos of EUTRAN. To indicate the priority, you need to perform segment-by-segment mapping.

Manner 2: The priority of the data frame is specified by the PDCP according to its own configuration information. The CN does not perform the priority indication, but only transparently transmits the data to the PDCP. The PDCP can analyze the data according to a similar strategy in the first method, and set the data. Qos field.

In an optional embodiment, in the foregoing step S104, when the priority information is filled into the packet data convergence protocol PDCP frame for carrying data, the filling may be performed by filling the priority information into the foregoing information. The idle field in the header of the PDCP frame.

In an optional embodiment, the filling the foregoing priority information into the packet data convergence protocol PDCP frame for carrying data includes: determining, in the foregoing data, that the total number of data packets with a priority greater than 0 reaches a first threshold At the time of the value, the above priority information is filled into the PDCP frame for carrying the data packet. In this embodiment, the received data may include a plurality of data packets, and when setting the priority of the data, the data packets included in the data may be respectively prioritized, and when the data is transmitted, the data may be The data packets in the packets are transmitted on different RBs according to their priorities.

In an optional embodiment, after determining the priority information of the received data, the method further includes: when determining that the data flow of the corresponding predetermined priority in the data exceeds the second threshold, The maximum IP flow in the stream includes a packet allocation flow identifier Flow Id for identifying the data; the allocated Flow Id is filled into the PDCP frame for carrying the data packet. That is, when a data packet in an IP stream needs to be transmitted through multiple RBs, an upstream identifier may be identified in the data packet in order to ensure the order of the data packets.

In the embodiment of the present invention, the centralized control unit needs to inform the remote processing unit through the data packet information, and may add content in the PDCP header information to notify the remote processing unit. The following describes how to fill the above priority information and/or Flow Id in the PDCP frame:

From the perspective of the interface data frame (ie, the above-mentioned PDCP frame) format of the central processing unit and the remote processing unit, in order to maintain compatibility with the past, the 5-bit reserved field in the data header of the PDCP frame can be used as the Qos priority. An indication (ie, for indicating priority information) and a Flow stream (ie, Flow Id) indicates that a specific number of bits are used as the QoS priority indication, and several bits are used as the Flow flow indication, which can be flexibly configured (for example, 2 bits are used as the QoS priority indication, 3 bits are used as the flow flow indication), or 3 bits are used. For the QoS priority indication, 2 bits are used as the flow flow indication; of course, other allocation methods can also be set. The following uses 2 bits as the QoS priority indication and 3 bits as the flow flow indication as an example:

As shown in FIG. 3 and FIG. 4, the QoS indicator is a scheduling service, which occupies 2 bits. Therefore, the QoS can be divided into four scheduling levels, that is, the priority of the data can be divided into four. Flow Id occupies 3 bits. The indication is mainly for load sharing and independent order keeping. The flow of the same application layer is guaranteed to be processed in the same RLC instance. The data received by the UE is sequential. In the case of the same Qos level, Flow ID is different, average scheduling.

After the above format is obtained, after receiving the data frame, the remote processing unit may distribute the data to different RLC processing units according to different Qos Ind and Flow Id for processing, and preferentially send data with higher QoS level, or Assign higher-level data to better-quality air interface resources.

In an optional embodiment, the method further includes: when determining that the RB included in the remote processing unit needs to be adjusted, sending an indication message to the control plane, where the indication message is used to indicate that the control plane adjusts the remote processing. The RBs included in the unit. In the embodiment of the present invention, the RB may be configured by the control plane, and the manner in which the RB is configured on the control plane may be multiple.

Manner 1: When the service is initially established, the control plane can comprehensively obtain the maximum number of used RBs (that is, MAX_RB) according to the subscription rate and/or UE capability of the user, and configure them to the remote processing unit and the UE respectively, and establish MAX_RBs. RB (ie, RLC, MAC instance) adopts static configuration mode and can be used directly when RB is needed.

Manner 2: When the service is initially established, the control plane can be the remote processing unit and the UE. Only the minimum number of used RBs (that is, MIN_RB) RBs can be established. If the RB needs to be added later, The control plane can be calculated in combination with the UE capability, and can be directly commanded to the remote processing unit and the UE respectively. The parameters of the RB can be reconfigured, or the corresponding network element can be notified to quickly copy all configuration information of another RB. This is dynamic. Configuration mode.

After the above two initializations, the Qos and Flow Id of all data packets can be set to 0, that is, all data packets are sent with the lowest priority RB. If it is in dynamic mode, when the RB needs to be added, the control plane can be notified by the PDCP. If it is in the static mode, it does not need to be added. In both modes, the PDCP will update the way the Qos and Flow Id are filled.

The Oos and Flow Id can be updated in the following cases, and the dynamic mode also needs to notify the control plane.

The priority needs to be guaranteed: when the PDCP module detects that the number of packets with Qos non-zero reaches the threshold A (corresponding to the first threshold value mentioned above), it is necessary to put such data into the corresponding Qos Ind. Flow Id remains at 0.

When the traffic of a single QoS is too large, load balancing is required: when the traffic of a Flow Id corresponding to a certain QoS (including 0) is greater than the threshold B (corresponding to the second threshold mentioned above). Then, it is necessary to find out the IP flow with the largest traffic in the Qos, modify the Flow Id of all the data packets, and assign the values of 1 to 7 in sequence (of course, other values can also be allocated), and if the allocation is full, Then, select Flow Id with the smallest flow rate from 1 to 7 again, and share Flow Id.

Among them, the threshold A is relatively small, and the unit can be the number of packets, for example, 50 packets in one second. Threshold B is relatively large, the unit can be rate, and is configurable, and can be set larger, such as setting to 3 Gbps.

For PDCP, the main function is to identify the service flow, and set the Qos and Flow Id information, and then send it to the RLC. The RLC has a shunt module to decide how to send the data packets of different streams to one or more RLC data processing. Module (ie, one or more RBs).

Because all data streams can be transmitted in quintuple, the order of the data is guaranteed by RLC, and PDCP does not need to be sorted.

For the RLC data processing module that carries the data with high Qos, priority is given to the RLC data processing module when scheduling, and the RLC data processing modules with different Flow Ids are equally scheduled with each other for the same Qos. As shown in FIG. 5, each smallest frame corresponds to one RB, that is, an RLC, MAC entity.

A data transmission method is also provided in the embodiment of the present invention. FIG. 6 is a flowchart of a second data data transmission method according to an embodiment of the present invention. As shown in FIG. 6, the process includes the following steps:

Step S602, receiving a packet data convergence protocol PDCP frame carrying data;

Step S604, determining a priority of the data according to the priority information filled in the PDCP frame.

Step S606, the data is sent to the radio bearer RB in the remote processing unit according to the priority of the data, where the remote processing unit includes two or more radio bearers RBs for transmitting data, and the RBs of different priorities are Send on different RBs.

The step of performing the above steps may be an RLC dispatch module in the remote processing unit.

In an optional embodiment, determining the priority of the data according to the priority information filled in the PDCP frame includes: determining a priority of the data according to the priority information filled in the idle field in the data header of the PDCP frame.

In an optional embodiment, sending the data to the radio bearer RB in the remote processing unit according to the priority of the foregoing data comprises: determining an RB corresponding to the priority according to the priority of the data; sending the data to The RB corresponding to the priority. In this embodiment, data with a high priority can be preferentially transmitted.

In an optional embodiment, sending the data to the radio bearer RB in the remote processing unit according to the priority of the foregoing data comprises: according to the priority of the foregoing data and the flow in the PDCP frame for identifying the sequence of the data. The identifier Flow Id sends the data to the RB in the remote processing unit. The manner in which the priority and the flow Id are filled in the PDCP frame has been stated in the foregoing embodiments, and details are not described herein again.

In an optional embodiment, before the data is sent to the radio bearer RB in the remote processing unit according to the priority of the foregoing data, the method further includes: determining that the control plane determines the number of RBs by at least one of the following manners: The predetermined number of RBs allocated: determining the maximum number of used RBs according to the user subscription rate and the terminal processing capability; first determining the minimum number of used RBs, and adjusting the number of RBs according to the terminal processing capability and/or the received indication information. Similarly, the manner in which the RB is configured for the control plane has been described in detail in the foregoing embodiments, and details are not described herein again.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, The optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

In the embodiment, a data transmission device is also provided, which is used to implement the above-mentioned embodiments and preferred embodiments, and has not been described again. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.

FIG. 7 is a structural block diagram of a first data transmission apparatus according to an embodiment of the present invention. As shown in FIG. 7, the apparatus includes a first determining module 72, a filling module 74, and a first transmitting module 76. Description:

The first determining module 72 is configured to determine priority information of the received data. The filling module 74 is connected to the first determining module 72, and configured to fill the priority information into a packet data convergence protocol PDCP frame for carrying data. The first sending module 76 is connected to the filling module 74, and configured to send the PDCP frame filled with the priority information to the remote processing unit, where the remote processing unit includes more than two for sending data. The radio bearers RB, and data of different priorities are transmitted on different RBs.

In an optional embodiment, the foregoing first determining module 72 may determine priority information of the received data by receiving at least one of the following: receiving priority information from the core network CN, wherein the priority information is CN according to The attribute of the service corresponding to the data and/or the information determined by the indication of the service provider; the priority information is determined according to the attribute of the service corresponding to the data and/or the indication of the service provider.

In an optional embodiment, the filling module 74 may fill the priority information into the packet data convergence protocol PDCP frame for carrying data by filling the priority information into the data header of the PDCP frame. In the idle field.

In an optional embodiment, the padding module 74 may fill the priority information into a packet data convergence protocol PDCP frame for carrying data by determining a total of data packets with a priority greater than 0 in the foregoing data. When the quantity reaches the first threshold, the above priority information is filled into the PDCP frame for carrying the data packet.

In an optional embodiment, the filling module 74 is further configured to: after determining the priority information of the received data, and when determining that the data flow of the corresponding predetermined priority in the data exceeds the second threshold, The maximum IP flow in the data stream includes a data packet allocation flow identification Flow Id for identifying the data; the above-mentioned Flow Id is filled into the data packet for carrying the data packet. In the PDCP frame.

In an optional embodiment, the apparatus further includes a first processing module, configured to send an indication message to the control plane when determining that the RB included in the remote processing unit needs to be adjusted, where the indication message is used to indicate The control plane adjusts the RBs included in the remote processing unit.

In an embodiment of the invention, the aforementioned FIG. 7 may be located in the PDCP.

FIG. 8 is a structural block diagram of a second type of data transmission apparatus according to an embodiment of the present invention. As shown in FIG. 8, the apparatus includes a receiving module 82, a second determining module 84, and a second transmitting module 86. Description.

The receiving module 82 is configured to receive the packet data convergence protocol (PDCP) frame carrying the data; the second determining module 84 is connected to the receiving module 82, and configured to determine the priority of the data according to the priority information filled in the PDCP frame; The second sending module 86 is connected to the second determining module 84, and configured to send data to the radio bearer RB in the remote processing unit according to the priority of the data, where the remote processing unit includes more than two A radio bearer RB that transmits data, and RBs of different priorities are transmitted on different RBs.

In an optional embodiment, the second determining module 84 may determine the priority of the data by determining the priority of the data according to the priority information filled in the idle field in the data header of the PDCP frame.

In an optional embodiment, the foregoing second sending module 86 may send the foregoing data to the radio bearer RB in the remote processing unit by: determining an RB corresponding to the priority according to the priority of the data; The data is sent to the RB corresponding to the priority.

In an optional embodiment, the foregoing second sending module 86 may send the foregoing data to the radio bearer RB in the remote processing unit by using the priority according to the foregoing data and the data for filling in the PDCP frame. The sequence of flow identifiers Flow Id sends data to the RBs in the remote processing unit described above.

In an optional embodiment, the apparatus further includes a second processing module configured to be at the root Before the data is sent to the radio bearer RB in the remote processing unit according to the priority of the data, the control plane determines a predetermined number of RBs that are allocated after determining the number of RBs by at least one of the following manners: according to the user subscription rate and the terminal processing capability. Determining the maximum number of RBs used by the RBs; first determining the minimum number of used RBs, and adjusting the number of RBs according to the terminal processing capability and/or the received indication information.

It should be noted that each of the above modules may be implemented by software or hardware. For the latter, the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the above modules are in any combination. The forms are located in different processors.

In practical applications, the functions implemented by each module in the above device may be implemented by a Central Processing Unit (CPU), a Micro Processor Unit (MPU), or a digital signal processor located in the device. (Digital Signal Processor, DSP), or Field Programmable Gate Array (FPGA) implementation.

Embodiments of the present invention also provide a computer storage medium. Alternatively, in the present embodiment, the above computer storage medium may be arranged to store program code for performing the steps in the above method embodiments.

In an embodiment of the present invention, the storage medium may include, but is not limited to, a USB flash drive, a read-only memory (ROM), a random access memory (RAM), and a mobile hard disk. A variety of media that can store program code, such as a disk or a disc.

In an embodiment of the invention, the processor executes the steps in the foregoing method embodiments according to the stored program code in the storage medium.

For specific examples in this embodiment, reference may be made to the examples described in the foregoing embodiments and the optional embodiments, and details are not described herein again.

Obviously, those skilled in the art will appreciate that the various modules or steps of the present invention described above can be implemented with a general purpose computing device, which can be centralized on a single computing device, or Distributed over a network of computing devices, optionally, they may be implemented in program code executable by the computing device, such that they may be stored in the storage device for execution by the computing device, and in some cases The steps shown or described may be performed in a different order than that herein, or they may be separately fabricated into individual integrated circuit modules, or a plurality of the modules or steps may be implemented as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

In the technical solution of the embodiment of the present invention, the PDCP frame carrying the data carries the priority information of the data at the same time. Therefore, when the data is transmitted, the data may be distributed to different RBs according to the priority of the data for transmission. Thereby, the hierarchical processing of the large-flow data is realized, and the problem that the related technology cannot adapt to the processing of the large-flow data is solved, and the purpose of hierarchically transmitting the large-flow data and improving the data transmission rate is achieved.

Claims

A data transmission method includes:

Determining priority information of the received data;

Filling the priority information into a packet data convergence protocol PDCP frame for carrying the data;

Transmitting the PDCP frame that is filled with the priority information to the remote processing unit, where the remote processing unit includes two or more radio bearers RBs for transmitting data, and data of different priorities are on different RBs. Send it.
The method of claim 1, wherein determining the priority information of the received data comprises one of the following:

Receiving the priority information from the core network CN, where the priority information is information determined by the CN according to an attribute of a service corresponding to the data and/or an indication of a service provider;

The priority information is determined according to an attribute of the service corresponding to the data and/or an indication of a service provider.
The method of claim 1, wherein the filling the priority information into the packet data convergence protocol PDCP frame for carrying the data comprises:

The priority information is populated into an idle field in the header of the PDCP frame.
The method according to any one of claims 1 to 3, wherein the filling of the priority information into a packet data convergence protocol PDCP frame for carrying the data comprises:

When it is determined that the total amount of data packets whose priority is greater than 0 in the data reaches a first threshold, the priority information is filled into a PDCP frame for carrying the data packet.
The method according to any one of claims 1 to 3, wherein after determining the priority information of the received data, the method further comprises:

When it is determined that the data traffic of the corresponding predetermined priority in the data exceeds the second threshold, the data packets included in the largest IP flow in the data flow are allocated for identifying the order of the data. Flow identifier Flow Id;

The allocated Flow Id is filled into a PDCP frame for carrying the data packet.
The method of claim 1 wherein the method further comprises:

When it is determined that the RBs included in the remote processing unit need to be adjusted, the indication message is sent to the control plane, where the indication message is used to instruct the control plane to adjust the RBs included in the remote processing unit.
A data transmission method includes:

Receiving a packet data convergence protocol PDCP frame carrying data;

Determining a priority of the data according to priority information filled in the PDCP frame;

Transmitting the data to the radio bearer RB in the remote processing unit according to the priority of the data, where the remote processing unit includes two or more radio bearers RBs for transmitting data, and RBs of different priorities. Send on different RBs.
The method of claim 7, wherein determining the priority of the data according to the priority information populated in the PDCP frame comprises:

Determining the priority of the data according to the priority information populated in the idle field in the data header of the PDCP frame.
The method of claim 7, wherein the transmitting the data to the radio bearer RB in the remote processing unit according to the priority of the data comprises:

Determining an RB corresponding to the priority according to a priority of the data;

The data is sent to an RB corresponding to the priority.
The method of claim 7, wherein the transmitting the data to the radio bearer RB in the remote processing unit according to the priority of the data comprises:

And transmitting the data to the RBs in the remote processing unit according to a priority of the data and a flow identifier Flow Id filled in the PDCP frame for identifying the data.
The method according to any one of claims 7 to 10, wherein Before the data is sent to the radio bearer RB in the remote processing unit, the method further includes:

Determining a predetermined number of RBs that are allocated after the control plane determines the number of RBs by at least one of the following:

Determining the maximum number of RBs used by the RB according to the user subscription rate and the terminal processing capability;

First, the minimum number of used RBs is determined, and the number of RBs is adjusted according to the terminal processing capability and/or the received indication information.
A data transmission device comprising:

a first determining module configured to determine priority information of the received data;

a padding module, configured to fill the priority information into a packet data convergence protocol PDCP frame for carrying the data;

The first sending module is configured to send the PDCP frame that is filled with the priority information to the remote processing unit, where the remote processing unit includes two or more radio bearers RB for transmitting data, with different priorities. The data is sent on different RBs.
A data transmission device comprising:

a receiving module, configured to receive a packet data convergence protocol PDCP frame carrying data;

a second determining module, configured to determine a priority of the data according to priority information filled in the PDCP frame;

The second sending module is configured to send the data to the radio bearer RB in the remote processing unit according to the priority of the data, where the remote processing unit includes two or more radio bearers for transmitting data. RB, RBs of different priorities are transmitted on different RBs.
A computer storage medium having stored therein computer executable instructions configured to perform the data transmission method of any of claims 1-6.
A computer storage medium storing computer executable in the computer storage medium A line of instructions configured to perform the data transfer method of any of claims 7-11.