CN110933712B - Data transmission method, terminal and storage medium - Google Patents

Data transmission method, terminal and storage medium Download PDF

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Publication number
CN110933712B
CN110933712B CN201911137364.3A CN201911137364A CN110933712B CN 110933712 B CN110933712 B CN 110933712B CN 201911137364 A CN201911137364 A CN 201911137364A CN 110933712 B CN110933712 B CN 110933712B
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data
base station
transmitted
application program
terminal
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CN110933712A (en
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姚坤
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Realme Chongqing Mobile Communications Co Ltd
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Realme Chongqing Mobile Communications Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/08—Load balancing or load distribution
    • H04W28/082—Load balancing or load distribution among bearers or channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H04W76/16—Involving different core network technologies, e.g. a packet-switched [PS] bearer in combination with a circuit-switched [CS] bearer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

The invention discloses a data transmission method, a data transmission device and a storage medium. The method comprises the following steps: acquiring the attribute of the application program; the attributes include: data volume, type, data stream size and time delay requirements of data to be transmitted; the terminal is in a double-connection mode, and in the double-connection mode, the terminal communicates with both the first base station and the second base station; if at least one of the attributes of the application program meets a preset condition, separating the data to be transmitted to obtain two groups of separated data; transmitting one of the two sets of data to the first base station through a split bearer, and transmitting the other of the two sets of data to the second base station.

Description

Data transmission method, terminal and storage medium
Technical Field
The present invention relates to the field of wireless technologies, and in particular, to a data transmission method, apparatus, and storage medium.
Background
The fifth generation (5G,5th Generation) mobile communication system supports an independent networking (SA) architecture and a Non-independent Networking (NSA) architecture, and one typical NSA architecture is a Dual Connection (DC) architecture.
In a DC architecture, a terminal may operate in a dual connectivity mode, in which the terminal communicates with both base stations, it is important how to determine when the terminal needs to split data and use split bearers for data transmission with both base stations in order to save the transmission power consumption of the terminal.
Disclosure of Invention
In view of this, the embodiments of the present invention desire to provide a data transmission method, apparatus and storage medium.
The technical scheme of the invention is realized as follows:
the embodiment of the invention provides a data transmission method, which comprises the following steps:
acquiring the attribute of the application program; the attributes include: data volume, type, data stream size and time delay requirements of data to be transmitted; the terminal supports a dual-connection mode, and in the dual-connection mode, the terminal communicates with both the first base station and the second base station;
if at least one of the attributes of the application program meets a preset condition, separating the data to be transmitted to obtain two groups of separated data; transmitting one of the two sets of data to the first base station through a split bearer, and transmitting the other of the two sets of data to the second base station.
In the above solution, if at least one of the attributes of the application program meets a preset condition, separating the data to be transmitted includes:
and when the data quantity of the data to be transmitted is larger than a transmission threshold value, separating the data to be transmitted.
In the above scheme, the separating the data to be transmitted includes:
judging whether the type of the application program is the same as a preset type;
and when the type of the application program is determined to be the same as the preset type, separating the data to be transmitted.
In the above scheme, the method further comprises:
when the type of the application program is not the same as the preset type, judging whether the data flow size corresponding to the application program is larger than a data volume threshold value or not;
and when the data flow size corresponding to the application program is determined to be larger than a data volume threshold, separating the data to be transmitted.
In the above scheme, the method further comprises:
when the data flow size corresponding to the application program is determined to be smaller than or equal to a data volume threshold, judging whether the time delay requirement of the application program is smaller than a time delay threshold or not;
and when the time delay requirement of the application program is less than a time delay threshold, separating the data to be transmitted.
In the above scheme, the acquiring the data size of the data to be transmitted includes:
judging whether the network side is configured with a repeated transmission function of starting a packet data convergence protocol (PDCP, packet Data Convergence Protocol) layer;
when it is determined that the network side is not configured to turn on the repeated transmission function of the PDCP layer, the data amount of the PDCP pdu to be transmitted is acquired.
In the above solution, before determining whether the network side is configured to turn on the repeated sending function of the PDCP layer, the method further includes:
receiving bearing configuration information sent by a first base station and a second base station; the bearer configuration information carries a radio data bearer (DRB, data Radio Bearer) identity;
and configuring a wireless bearing mode into a separated bearing according to the DRB identification.
In the above scheme, the method further comprises:
transmitting the data to be transmitted to the first base station when the data quantity of the data to be transmitted is smaller than or equal to a transmission threshold configured by a network side; or transmitting the data to be transmitted to the second base station.
The embodiment of the invention provides a data transmission device, which is applied to a terminal, and comprises the following components:
an acquisition unit configured to acquire an attribute of an application program; the attributes include: data volume, type, data stream size and time delay requirements of data to be transmitted;
The processing unit is used for separating the data to be transmitted if at least one of the attributes of the application program meets a preset condition, so as to obtain two groups of separated data; transmitting one of the two sets of data to the first base station through a split bearer, and transmitting the other of the two sets of data to the second base station;
the terminal supports a dual-connection mode, and in the dual-connection mode, the terminal communicates with both the first base station and the second base station.
The embodiment of the invention provides a data transmission device, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor realizes the steps of any one of the methods when executing the program.
Embodiments of the present invention provide a computer storage medium having stored thereon computer instructions which when executed by a processor perform the steps of any of the methods described above.
The data transmission method, the data transmission device and the storage medium provided by the embodiment of the invention acquire the attribute of the application program; the attributes include: data volume, type, data stream size and time delay requirements of data to be transmitted; the terminal is in a double-connection mode, and in the double-connection mode, the terminal communicates with both the first base station and the second base station; if at least one of the attributes of the application program meets a preset condition, separating the data to be transmitted to obtain two groups of separated data; transmitting one of the two sets of data to the first base station through a split bearer, and transmitting the other of the two sets of data to the second base station. By adopting the technical scheme of the embodiment of the invention, when at least one of the attributes of the application program meets the preset condition, the data to be transmitted can be separated, and two groups of separated data can be obtained; one of the two sets of data is transmitted to the first base station through a split bearer, and the other of the two sets of data is transmitted to the second base station, so that when the data needs to be split and the split data is transmitted by using the split bearer, and when the data does not need to be split can be accurately determined, and the transmission power consumption of the terminal is reduced.
Drawings
Fig. 1 is a schematic diagram of a system architecture to which a data transmission method according to an embodiment of the present invention is applied;
fig. 2 is a schematic diagram of an implementation flow of a data transmission method according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an implementation flow of configuring a split bearer according to an embodiment of the present invention;
fig. 4 is a schematic diagram of an implementation flow of transmitting separated data by using a separation bearing manner according to an embodiment of the present invention;
fig. 5a is a schematic flow chart of a specific implementation of a first data transmission method according to an embodiment of the present invention;
fig. 5b is a schematic flow chart of a specific implementation of a second data transmission method according to an embodiment of the present invention;
FIG. 5c is a flowchart illustrating a third embodiment of a data transmission method according to the present invention;
fig. 6 is a schematic diagram of a composition structure of a data transmission device according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a second structure of a data transmission device according to an embodiment of the present invention.
Detailed Description
The invention will be described in further detail with reference to the accompanying drawings and specific examples.
Fig. 1 is a schematic diagram of a system architecture to which a data transmission method according to an embodiment of the present invention is applied; as shown in fig. 1, the system includes a terminal 101, a primary base station 102, and a secondary base station 103; wherein, the liquid crystal display device comprises a liquid crystal display device,
terminal 101 may establish an air interface connection with primary base station 102 (also referred to as a primary node) to enable communication with primary base station 102; the terminal 101 may also establish an air interface connection with the secondary base station 103 (also referred to as a secondary node), so as to implement communication with the secondary base station 103; the terminal 101 may also establish an air interface connection with the primary base station 102 and the secondary base station 103 simultaneously, thereby enabling communication with the primary base station 102 and the secondary base station 103 simultaneously.
In the dual connectivity mode, the terminal 101 establishes two connections with the primary base station 102 and the secondary base station 103 simultaneously, wherein the primary base station 102 is mainly responsible for transmitting signaling and the secondary base station 103 is responsible for transmitting data. The technical scheme of the embodiment of the application is mainly aimed at the terminal in the double-connection mode.
The types of the primary base station 102 and the secondary base station 103 shown in fig. 1 may be the same or different. In one example, the primary base station 102 is an LTE base station and the secondary base station 103 is an NR base station. In another example, the primary base station 102 is an NR base station and the secondary base station 103 is also an NR base station. In yet another example, the primary base station 102 is an NR base station and the secondary base station 103 is an LTE base station. The embodiment of the present application does not limit the types of the primary base station 102 and the secondary base station 103.
In one example, the dual connectivity mode is EN-DC mode or next generation EN-DC (next generation EN-DC, NGEN-DC) mode, in which case the primary base station is an LTE base station and the secondary base station is an NR base station, with which the terminal communicates.
In another example, the dual connectivity mode is an NR-evolved UMTS (NR-EUTRA, NE-DC) mode, in which case the primary base station is an NR base station, the secondary base station is an LTE base station, and the terminal communicates with both the LTE base station and the NR base station.
It should be noted that, the dual connectivity mode is not limited to the EN-DC mode and the NE-DC mode, and the specific type of the dual connectivity mode is not limited in the embodiments of the present application.
In specific implementation, the deployment manner of the main base station and the auxiliary base station may be co-station deployment (for example, the NR base station and the LTE base station may be disposed on one entity device), or may be non-co-station deployment (for example, the NR base station and the LTE base station may be disposed on different entity devices), which may not be limited in this application. Here, the LTE base station may also be referred to as an evolved Node B (eNB), and the NR base station may also be referred to as a next generation base station (next generation Node B, gNB). It should be noted that, the present application may not be limited to the interrelation of the coverage areas of the primary base station and the secondary base station, for example, the primary base station and the secondary base station may overlap.
The specific type of the terminal 101 may not be limited, and may be any user equipment supporting the dual-connection mode, for example, smart phones, personal computers, notebook computers, tablet computers, and portable wearable devices.
The embodiment of the invention provides a data transmission method, which is applied to a terminal, and specifically can be the terminal 101 shown in fig. 1. Fig. 2 is a schematic diagram of an implementation flow of a data transmission method according to an embodiment of the present invention; as shown in fig. 2, the method includes:
Step 201: the attributes of the application are obtained. The attributes include: the data volume, type, data stream size, and latency requirements of the data to be transmitted.
Here, the terminal may refer to a terminal supporting a dual connectivity mode in which the terminal communicates with both the first base station and the second base station.
The first base station is a main base station, and the second base station is an auxiliary base station; or the first base station is an auxiliary base station, and the second base station is a main base station.
Here, in order to realize simultaneous communication with two base stations, the terminal needs to be provided with two sets of communication modules, and the two sets of communication modules respectively correspond to the two base stations. The first modem module (modem) and the first radio frequency channel (including the first radio frequency circuit and the first radio frequency antenna) form a first set of communication modules, and the first set of communication modules corresponds to the first base station. The second modem and the second radio frequency path (including the second radio frequency circuit and the second radio frequency antenna) form a second set of communication modules, the second set of communication modules corresponding to the second base station. In one example, the first modem is a 5G modem, the second modem is a 4G modem, the first radio frequency circuit is a 5G RF, and the second radio frequency circuit is a 4G RF. In the dual connectivity mode, the first communication module and the second communication module operate simultaneously.
In actual application, the attribute of the application program can be obtained through the processor of the terminal.
Here, the application may refer to a foreground application and/or a background application of the terminal, such as a WeChat program, and the like. When a user opens a plurality of applications in turn at the terminal, only the last opened application is displayed on the current display interface of the terminal, all applications which have been opened before are resident in a background stack, the application displayed on the current display interface of the terminal is called a foreground application, and all applications resident in the background stack are called background applications. In general, a user can only perform various operation experiences on a current foreground application, that is, a background application can perform various operation experiences only after being switched to the current foreground application.
Here, the data amount of the data to be transmitted may refer to the data amount of the PDCP PDU to be transmitted, and may be acquired by a background application of the terminal.
Specifically, the terminal judges whether the network side is configured with a repeated sending function of starting the PDCP layer; when it is determined that the network side is not configured to turn on the repeated transmission function of the PDCP layer, the data amount of the PDCP PDU to be transmitted is acquired.
Here, when it is determined that the network side is not configured to turn on the repeated transmission function of the PDCP layer, the terminal does not need to duplicate the PDCP PDU.
In an embodiment, before the determining whether the network side configures to turn on the repeated sending function of the PDCP layer, the method further includes:
receiving bearing configuration information sent by a first base station and a second base station; the bearer configuration information carries a wireless data bearer (DRB) identifier;
and configuring a wireless bearing mode into a separated bearing according to the DRB identification.
Here, if the DRB identifier in the bearer configuration information from the first base station is the same as the DRB identifier in the bearer configuration information from the second base station, the terminal may configure the radio bearer manner to be a split bearer according to the bearer configuration information.
Fig. 3 is a schematic flow diagram of an implementation of configuring a split bearer, comprising the steps of:
step 1: after the terminal is started, a registration request is sent to the 4G base station; the 4G base station sends bearing configuration information to a terminal; the bearer configuration information at least includes: DRB identity, eps bearer identity; assuming that the DRB is identified as a, and the eps bearer is identified as X;
step 2: the 4G base station sends a radio connection control (RRC) message to the terminal; the RRC message at least carries 5G neighbor cell information, a DRB identifier and an eps bearer identifier; assuming that the DRB is identified as a, and the eps bearer is identified as X;
Step 3: the terminal accesses a cell covered by the 5G base station through a random access flow; since the DRB identifier in the bearer configuration information from the first base station is the same as the DRB identifier in the bearer configuration information from the second base station, it indicates that the network side configures a split bearer for the terminal, and the terminal may configure a radio bearer manner as a split bearer according to the bearer configuration information.
Here, before the terminal configures the radio bearer manner to separate bearers, the terminal may further establish dual connectivity with the first base station and the second base station, and the specific procedure may include the following steps:
step 1: and after the terminal is started, a registration request is sent to the 4G base station so as to establish connection with the 4G base station.
Step 2: the 4G base station sends an RRC message to the terminal; the RRC message at least carries 5G cell information;
step 3: the terminal receives the RRC message, measures the configured 5G cell to obtain a measurement report, and reports the measurement report to the 4G base station so that the 4G base station configures a dual-connection mode;
step 4: and the terminal executes double connection operation and establishes connection with the 5G base station to obtain 5G service.
Here, it should be noted that the terminal needs to register the 4G network first and then establish a connection with the 5G base station, so that the terminal is in a dual connection mode, and in the dual connection mode, the data transmission rate can be improved, and meanwhile, the delay of data transmission can be reduced.
Step 202: if at least one of the attributes of the application program meets a preset condition, separating the data to be transmitted to obtain two groups of separated data; transmitting one of the two sets of data to the first base station through a split bearer, and transmitting the other of the two sets of data to the second base station.
Here, the data to be transmitted may refer to a data amount of the PDCP PDU.
In practical application, whether to separate the data to be transmitted or not can be determined based on a transmission threshold configured by a network side so as to speed up data transmission; and whether to separate the data to be transmitted or not can be determined based on a transmission threshold preset by the terminal so as to speed up data transmission.
Based on this, in an embodiment, if at least one of the attributes of the application program meets a preset condition, the separating the data to be transmitted includes:
And when the data quantity of the data to be transmitted is larger than a transmission threshold value, separating the data to be transmitted.
The transmission threshold may be configured at the network side, or may be preset by the terminal.
Here, taking a transmission threshold configured by the network side as an example, when the data amount of the data to be transmitted is smaller than or equal to the transmission threshold configured by the network side, transmitting the data to be transmitted to the first base station; or when the data quantity of the data to be transmitted is smaller than or equal to a transmission threshold configured by the network side, transmitting the data to be transmitted to the second base station.
Here, the transmission threshold configured by the network side may be determined by the network side according to the channel quality between the terminal and the first base station; or the network side may determine according to the channel quality between the terminal and the first base station. Other determination methods are also possible, and are not limited herein.
Here, the separating the data to be transmitted may be separating according to a SN size order corresponding to the PDCP PDU; the PDCP PDUs may also be equally divided in proportion, such as 1:1.
Fig. 4 is a schematic flow chart of an implementation of transmitting separated data by using a separation bearer mode, including the following steps:
step 1: and the terminal establishes split bearing.
The terminal receives bearing configuration information sent by a first base station and a second base station; the bearer configuration information carries a wireless data bearer (DRB) identifier; and configuring a wireless bearing mode as a split bearing according to the DRB identification.
Step 2: judging whether a network side is configured with a repeated transmission function (PDCP duplicate) for starting up the PDCP layer; when it is determined that the network side is not configured to turn on the repeated transmission function of the PDCP layer, the data amount of the PDCP PDU to be transmitted is acquired.
Step 3: and when the data volume of the PDCP PDU is larger than a transmission threshold configured by the network side, separating the PDCP PDU.
Assuming that the SN corresponding to the PDCP PDU is 1, 2, 3, 4, 5, and 6, if the transmission threshold configured at the network side is 3, the PDCP PDU may be separated to obtain two sets of data, where SN corresponding to one set of data is 1, 2, and 3, and SN corresponding to the other set of data is 4, 5, and 6.
Step 4: and transmitting the PDCP PDU to the main channel when the data quantity of the PDCP PDU is smaller than or equal to a transmission threshold configured by the network side.
If the first base station is the main channel, transmitting PDCP PDU to the first base station; and if the second base station is the main channel, transmitting the PDCP PDU to the second base station.
Here, the split bearer may also be referred to as a split bearer, specifically refers to a bearer that separates PDCP PDUs into an LTE RLC entity and an NR RLC entity for separate transmission; wherein the PDCP entity of the terminal is associated with two RLC entities, one being an LTE RLC entity and the other being an NR RLC entity. The LTE RLC entity refers to a transmission unit of an RLC layer in the LTE base station that is responsible for transmitting PDCP PDUs, and the NR RLC entity refers to a transmission unit of an RLC layer in the NR base station that is responsible for transmitting PDCP PDUs.
Here, if the network side configures to start the duplicate transmission function of the PDCP layer, that is, the PDCP multiplexing is activated, the PDCP PDU needs to be duplicated to obtain two sets of the same PDCP PDUs; and respectively submitting the two groups of the same PDCP PDUs to an LTE RLC entity and an NR RLC entity.
Here, if the network side is not configured to start the repeated sending function of the PDCP layer, that is, PDCP multiplexing is not activated, and the data size of the PDCP PDU is greater than a transmission threshold ul-datasplit threshold configured by the network side, separating the PDCP PDU to obtain two separated sets of PDCP PDUs, and submitting the two separated sets of PDCP PDUs to the LTE RLC entity and the NR RLC entity respectively. Wherein the two RLC entities belong to different Groups. Group refers to MCG and SCG, i.e. the cell set of the primary base station and the cell set of the secondary base station.
Here, if the data size of the PDCP PDU is less than or equal to a transmission threshold ul-datasplit threshold configured by the network side, the PDCP PDU is not separated; and submitting the PDCP PDU to an LTE RLC entity or an NR RLC entity, wherein the LTE RLC entity or the NR RLC entity is specifically configured by the network as a main channel. Wherein two RLC entities belong to one group; alternatively, the two RLC entities belong to different Groups.
It should be noted that, here, when the data amount of the data to be transmitted is less than or equal to the transmission threshold configured by the network side, the PDCP entity of the terminal does not need to perform data separation on the data to be transmitted, and through the main channel configured by the network side, the data transmission requirement can be met by using a single RLC entity, so that the PDCP entity of the terminal does not need to perform data separation, numbering and other processes on the data to be transmitted, and the PDCP entity of the network side does not need to perform reordering and other processes on the received data, thereby reducing the transmission power consumption of the terminal.
In practical application, it may also combine the transmission threshold configured by the network side and the type of the foreground application of the terminal to determine whether to separate the data to be transmitted so as to speed up data transmission.
Based on this, in an embodiment, the separating the data to be transmitted includes: judging whether the type of the application program is the same as a preset type; and when the type of the application program is determined to be the same as the preset type, separating the data to be transmitted.
Here, the type of the application may refer to a type of a foreground application that the terminal is currently activated.
Here, the types of the application programs may be divided according to the transmission rate and the delay requirement of the data stream by the foreground application program that the terminal is currently activated.
For example, if the transmission rate and the delay requirement of the foreground application program of the terminal currently activated on the data stream are low, the type corresponding to the foreground application program may be set to an application that does not need to perform data separation, such as an application notepad, a camera, an electronic book, social software, a music player, and the like. If the requirements of the foreground application program activated at present on the terminal on the transmission rate and the time delay of the data stream are higher, the application corresponding type can be set as an application needing data separation, such as applications of competitive games, video uploading and the like.
In the above manner, the foreground application program can perform weighted calculation on the transmission rate and the time delay requirement of the data stream to obtain a calculation result; and if the calculation result exceeds a preset threshold, setting the type corresponding to the corresponding foreground application program as an application needing data separation.
For example, assume that the threshold corresponding to the transmission rate is 10M/s, the threshold corresponding to the delay requirement is 5ms, the rate weight is 0.6, and the delay weight is 0.4. Assuming that the transmission rate of application a is 20M/s and the delay requirement is 9ms, the calculation result is 0.6 ((20-10)/10) +0.4 ((5-9)/5) =0.44; assuming that the transmission rate of application B is 100M/s and the delay requirement is 9ms, the calculation result is 0.6 ((100-10)/10) +0.4 ((5-9)/5) =4.24. If the calculation result is greater than the preset value of 0.5, setting the type corresponding to the application as the application needing data separation.
It should be noted that, here, the terminal supports the user to modify the type of the application, for example, the user often robs the red packet through the WeChat, and the user may set the type of the WeChat to be an application that needs to perform data separation to speed up data transmission.
Here, when the data amount of the data to be transmitted is less than or equal to the transmission threshold, it is unnecessary to separate the data to be transmitted and transmit the data to be transmitted to the first base station or the second base station.
It should be noted that, if the first base station is configured as a primary channel, the terminal may transmit data to be transmitted to the first base station through a primary cell group bearer; or if the second base station is configured as a main channel, the terminal can transmit the data to be transmitted to the second base station through the auxiliary cell group bearer. The primary cell group carrying may refer to carrying the data to be transmitted using resources provided by the first base station; the secondary cell group bearer may refer to using the resource provided by the second base station to carry the data to be transmitted.
In practical application, when the foreground application is an application that does not need data separation, the data flow corresponding to the whole machine application of the terminal can be combined to determine whether to separate the data to be transmitted so as to speed up data transmission.
Based on this, in an embodiment, the method further comprises:
when the type of the application program is not the same as the preset type, judging whether the data flow size corresponding to the application program is larger than a data volume threshold value or not;
and when the data flow size corresponding to the application program is determined to be larger than a data volume threshold, separating the data to be transmitted.
Here, the data flow size corresponding to the application program may refer to a data flow corresponding to a complete machine application of the terminal, that is, a data flow size corresponding to a foreground application and a background application of the terminal.
Here, when the type of the application program is determined not to be the same as the preset type, if an application with high requirements on the data transmission speed and the transmission delay exists in the background application, such as an application for uploading a large data packet or an application for downloading a game packet or video data. Therefore, whether the data flows corresponding to all the foreground application and the background application in the whole machine are larger than a data quantity threshold value or not needs to be considered, and if the sum of the data flow sizes corresponding to the foreground application and the background application is larger than the data quantity threshold value, the data to be transmitted are separated.
In practical application, when the data flow corresponding to the whole machine application is smaller than or equal to the data volume threshold, the time delay of the background application of the terminal can be combined to determine whether to separate the data to be transmitted so as to accelerate data transmission.
Based on this, in an embodiment, the method further comprises:
when the data flow size corresponding to the application program is determined to be smaller than or equal to a data volume threshold, judging whether the time delay requirement of the application program is smaller than a time delay threshold or not;
And when the time delay requirement of the application program is less than a time delay threshold, separating the data to be transmitted.
Here, the time delay of the application program may refer to a time delay of a background application program of the terminal.
Here, when the sizes of the data streams corresponding to the foreground application and the background application are smaller than or equal to the data volume threshold, if an application with a very high data transmission delay requirement exists in the background application, such as an autopilot application, the data to be transmitted needs to be separated.
By adopting the technical scheme of the embodiment of the invention, when at least one of the attributes of the application program meets the preset condition, the data to be transmitted can be separated, and two groups of separated data can be obtained; one of the two sets of data is transmitted to the first base station through a split bearer, and the other of the two sets of data is transmitted to the second base station, so that when the data is split and the split data is transmitted by using the split bearer, and when the data does not need to be split, consumption of PDCP layers of the terminal side and the network side is reduced, and transmission power consumption of the terminal is further reduced.
The following describes in detail the specific implementation principle of the data transmission method according to the embodiment of the present invention with reference to the specific embodiment.
Fig. 5a is a schematic flow chart of a specific implementation of a first data transmission method according to an embodiment of the present invention, as shown in fig. 5a, including the following steps:
step 1: the terminal establishes a split bearer.
Step 2: the terminal judges whether the network side is configured with a repeated transmission function (PDCP duplicate) for starting the PDCP layer; when it is determined that the network side is not configured to turn on the repeated transmission function of the PDCP layer, step 3 is performed.
Step 3: the terminal acquires the data volume of the PDCP PDU; and when the data quantity of the PDCP PDU is larger than the transmission threshold configured by the network side, executing step 4.
Step 4: judging whether the type of a foreground application program of the terminal is the same as a preset type; and when the type of the foreground application program is determined to be the same as the preset type, executing step 5.
Step 5: separating PDCP PDU; transmitting one of the two sets of data to the first base station through a split bearer, and transmitting the other of the two sets of data to the second base station.
It should be noted that, here, when the data amount of the data to be transmitted is greater than the transmission threshold configured by the network, it may be determined whether to separate the data to be transmitted in combination with the type of the foreground application, and when the foreground application is an application that does not need to perform data separation, the data to be transmitted does not need to be separated, so that consumption of PDCP layers on the terminal side and the network side can be reduced, and further, transmission loss of the terminal can be reduced.
Fig. 5b is a flowchart of a specific implementation of the second data transmission method according to the embodiment of the present invention, as shown in fig. 5b, including the following steps:
step 1: the terminal establishes a split bearer.
Step 2: the terminal judges whether the network side is configured with a repeated transmission function (PDCP duplicate) for starting the PDCP layer; when it is determined that the network side is not configured to turn on the repeated transmission function of the PDCP layer, step 3 is performed.
Step 3: the terminal acquires the data volume of the PDCP PDU; and when the data quantity of the PDCP PDU is larger than the transmission threshold configured by the network side, executing step 4.
Step 4: judging whether the type of a foreground application program of the terminal is the same as a preset type; and when the type of the foreground application program is not the same as the preset type, executing step 5.
Step 5: judging whether the data flow sizes corresponding to the foreground application program and the background application program are larger than a data volume threshold value or not; and when the data flow sizes corresponding to the foreground application program and the background application program are determined to be larger than the data volume threshold value, executing the step 6.
Step 6: separating PDCP PDU; transmitting one of the two sets of data to the first base station through a split bearer, and transmitting the other of the two sets of data to the second base station.
It should be noted that, here, when the data size of the data to be transmitted is greater than the transmission threshold of the network configuration and the foreground application type is an application that does not need to perform data separation, it may be determined whether to separate the data to be transmitted by combining the sum of the data flow sizes corresponding to the foreground application and the background application in the complete machine, so as to reduce the consumption of PDCP layers at the terminal side and the network side, and further reduce the transmission loss of the terminal.
Fig. 5c is a schematic flow chart of a specific implementation of a third data transmission method according to an embodiment of the present invention, as shown in fig. 5c, including the following steps:
step 1: the terminal establishes a split bearer.
Step 2: the terminal judges whether the network side is configured with a repeated transmission function (PDCP duplicate) for starting the PDCP layer; when it is determined that the network side is not configured to turn on the repeated transmission function of the PDCP layer, step 3 is performed.
Step 3: the terminal acquires the data volume of the PDCP PDU; and when the data quantity of the PDCP PDU is larger than the transmission threshold configured by the network side, executing step 4.
Step 4: judging whether the type of a foreground application program of the terminal is the same as a preset type; and when the type of the foreground application program is not the same as the preset type, executing step 5.
Step 5: judging whether the data flow sizes corresponding to the foreground application program and the background application program are larger than a data volume threshold value or not; and when the data flow sizes corresponding to the foreground application program and the background application program are less than or equal to the data volume threshold value, executing the step 6.
Step 6: judging whether the time delay requirement of a background application program of the terminal is smaller than a time delay threshold; when the time delay requirement of the background application program is smaller than a time delay threshold value, executing the step 7; otherwise, step 8 is performed.
Step 7: separating the data to be transmitted; transmitting one of the two sets of data to the first base station through a split bearer, and transmitting the other of the two sets of data to the second base station.
Step 8: and sending the data to be transmitted to the main channel.
If the first base station is the main channel, the data to be transmitted is sent to the first base station; and if the second base station is the main channel, sending the data to be transmitted to the second base station.
It should be noted that, here, when the data size of the data to be transmitted is greater than the transmission threshold of the network configuration, and the foreground application type is an application that does not need to perform data separation, and the sum of the sizes of the data flows corresponding to the foreground application and the background application in the complete machine is less than or equal to the data size threshold, the delay requirement of the background application may be combined to determine whether to separate the data to be transmitted, so as to reduce the consumption of PDCP layers of the terminal side and the network side, and further reduce the transmission loss of the terminal.
In order to realize the data transmission method of the embodiment of the invention, the embodiment of the invention also provides a data transmission device. Fig. 6 is a schematic diagram of a composition structure of a data transmission device according to an embodiment of the present invention; as shown in fig. 6, the apparatus includes:
an acquisition unit 61 for acquiring a data amount of data to be transmitted and attributes of an application program; the attributes include: type, data stream size, latency requirements; the terminal supports a dual-connection mode, and in the dual-connection mode, the terminal communicates with both the first base station and the second base station; the first base station is a main base station, and the second base station is an auxiliary base station;
a processing unit 62, configured to separate the data to be transmitted if at least one of the data amount of the data to be transmitted and the attribute of the application program meets a preset condition, so as to obtain two separated sets of data; transmitting one of the two sets of data to the first base station through a split bearer, and transmitting the other of the two sets of data to the second base station.
In one embodiment, the processing unit 62 is specifically configured to:
and when the data quantity of the data to be transmitted is larger than a transmission threshold configured by the network side, separating the data to be transmitted.
In one embodiment, the processing unit 62 is specifically configured to:
judging whether the type of the application program is the same as a preset type;
and when the type of the application program is determined to be the same as the preset type, separating the data to be transmitted.
In one embodiment, the processing unit 62 is specifically configured to:
when the type of the application program is not the same as the preset type, judging whether the data flow size corresponding to the application program is larger than a data volume threshold value or not;
and when the data flow size corresponding to the application program is determined to be larger than a data volume threshold, separating the data to be transmitted.
In one embodiment, the processing unit 62 is specifically configured to:
when the data flow size corresponding to the application program is determined to be smaller than or equal to a data volume threshold, judging whether the time delay requirement of the application program is smaller than a time delay threshold or not; and when the time delay requirement of the application program is less than a time delay threshold, separating the data to be transmitted.
In an embodiment, the obtaining unit 61 is specifically configured to: judging whether a network side is configured with a repeated transmission function of starting a Packet Data Convergence Protocol (PDCP) layer; when it is determined that the network side is not configured to turn on the repeated transmission function of the PDCP layer, the data amount of the PDCP PDU to be transmitted is acquired.
In an embodiment, the obtaining unit 61 is specifically configured to: receiving bearing configuration information sent by a first base station and a second base station; the bearer configuration information carries a DRB identifier;
and configuring a wireless bearing mode into a separated bearing according to the DRB identification.
In one embodiment, the processing unit 62 is specifically configured to:
transmitting the data to be transmitted to the first base station when the data quantity of the data to be transmitted is smaller than or equal to a transmission threshold configured by a network side; or when the data quantity of the data to be transmitted is smaller than or equal to a transmission threshold configured by the network side, transmitting the data to be transmitted to the second base station.
In practical applications, the acquiring unit 61 and the processing unit 62 may be implemented by a processor in the data transmission device.
It should be noted that: the above embodiments provide that the data transmission device is only exemplified by the above-mentioned division of each program module when data transmission is performed, and in practical application, the above-mentioned processing allocation may be performed by different program modules according to needs, i.e. the internal structure of the device is divided into different program modules to complete all or part of the above-mentioned processing. In addition, the data transmission device and the data transmission method provided in the foregoing embodiments belong to the same concept, and specific implementation processes of the data transmission device and the data transmission method are detailed in the method embodiments and are not repeated herein.
The embodiment of the present invention also provides a data transmission device, as shown in fig. 7, the device 70 includes: a communication interface 71, a processor 72, a memory 73; wherein, the liquid crystal display device comprises a liquid crystal display device,
a communication interface 71 capable of information interaction with other devices;
and a processor 72, connected to the communication interface 71, for executing the method provided by one or more technical solutions on the intelligent device side when running the computer program. And the computer program is stored on the memory 73.
Of course, in actual practice, the various components of the device 70 are coupled together by a bus system 74. It is understood that the bus system 74 is used to enable connected communications between these components. The bus system 74 includes a power bus, a control bus, and a status signal bus in addition to the data bus. But for clarity of illustration the various buses are labeled as bus system 74 in fig. 7.
The memory 73 in the present embodiment is used to store various types of data to support the operation of the device 70. Examples of such data include: any computer program for operating on the device 70.
The method disclosed in the embodiments of the present application may be applied to the processor 72 or implemented by the processor 72. The processor 72 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuitry in hardware or instructions in software in the processor 72. The processor 72 described above may be a general purpose processor, a digital signal processor (DSP, digital Signal Processor), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The processor 72 may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present application. The general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly embodied in a hardware decoding processor or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium in a memory 73, said processor 72 reading information in the memory 73, in combination with its hardware performing the steps of the method as described above.
In an exemplary embodiment, the apparatus 70 may be implemented by one or more application specific integrated circuits (ASIC, application Specific Integrated Circuit), DSPs, programmable logic devices (PLD, programmable Logic Device), complex programmable logic devices (CPLD, complex Programmable Logic Device), field-programmable gate arrays (FPGA, field-Programmable Gate Array), general purpose processors, controllers, microcontrollers (MCU, micro Controller Unit), microprocessors (Microprocessor), or other electronic components for performing the aforementioned methods.
It is understood that the memory 53 of the embodiments of the present application may be either volatile memory or nonvolatile memory, and may include both volatile and nonvolatile memory. Wherein the nonvolatile Memory may be Read Only Memory (ROM), programmable Read Only Memory (PROM, programmable Read-Only Memory), erasable programmable Read Only Memory (EPROM, erasable Programmable Read-Only Memory), electrically erasable programmable Read Only Memory (EEPROM, electrically Erasable Programmable Read-Only Memory), magnetic random access Memory (FRAM, ferromagnetic random access Memory), flash Memory (Flash Memory), magnetic surface Memory, optical disk, or compact disk Read Only Memory (CD-ROM, compact Disc Read-Only Memory); the magnetic surface memory may be a disk memory or a tape memory. The volatile memory may be random access memory (RAM, random Access Memory), which acts as external cache memory. By way of example, and not limitation, many forms of RAM are available, such as static random access memory (SRAM, static Random Access Memory), synchronous static random access memory (SSRAM, synchronous Static Random Access Memory), dynamic random access memory (DRAM, dynamic Random Access Memory), synchronous dynamic random access memory (SDRAM, synchronous Dynamic Random Access Memory), double data rate synchronous dynamic random access memory (ddr SDRAM, double Data Rate Synchronous Dynamic Random Access Memory), enhanced synchronous dynamic random access memory (ESDRAM, enhanced Synchronous Dynamic Random Access Memory), synchronous link dynamic random access memory (SLDRAM, syncLink Dynamic Random Access Memory), direct memory bus random access memory (DRRAM, direct Rambus Random Access Memory). The memory described in the embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.
It should be noted that: "first," "second," etc. are used to distinguish similar objects and not necessarily to describe a particular order or sequence.
In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above described device embodiments are only illustrative, e.g. the division of the units is only one logical function division, and there may be other divisions in practice, such as: multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. In addition, the various components shown or discussed may be coupled or directly coupled or communicatively coupled to each other via some interface, whether indirectly coupled or communicatively coupled to devices or units, whether electrically, mechanically, or otherwise.
The units described as separate units may or may not be physically separate, and units displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network 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 each embodiment of the present invention may be integrated in one processing module, or each unit may be separately used as one unit, or two or more units may be integrated in one unit; the integrated units may be implemented in hardware or in hardware plus software functional units. Those of ordinary skill in the art will appreciate that: all or part of the steps for implementing the above method embodiments may be implemented by hardware associated with program instructions, where the foregoing program may be stored in a computer readable storage medium, and when executed, the program performs steps including the above method embodiments; and the aforementioned storage medium includes: a removable storage device, ROM, RAM, magnetic or optical disk, or other medium capable of storing program code.
The methods disclosed in the several method embodiments provided in the present application may be arbitrarily combined without collision to obtain a new method embodiment.
The features disclosed in the several product embodiments provided in the present application may be combined arbitrarily without conflict to obtain new product embodiments.
The features disclosed in the several method or apparatus embodiments provided in the present application may be arbitrarily combined without conflict to obtain new method embodiments or apparatus embodiments.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (9)

1. A data transmission method, applied to a terminal, the method comprising:
acquiring the attribute of the application program; the attributes include: the amount of data to be transmitted; the terminal supports a dual-connection mode, and in the dual-connection mode, the terminal communicates with both the first base station and the second base station;
when the data volume of the data to be transmitted is larger than a transmission threshold value, separating the data to be transmitted to obtain two separated groups of different data; transmitting one of the two sets of different data to the first base station through a split bearer, and transmitting the other of the two sets of different data to the second base station;
The acquiring the data volume of the data to be transmitted of the application program comprises the following steps:
judging whether a network side is configured with a repeated transmission function of starting a Packet Data Convergence Protocol (PDCP) layer;
and when the network side is not configured to start the repeated sending function of the PDCP layer, acquiring the data quantity of the PDCP protocol data unit PDU to be transmitted.
2. The method of claim 1, wherein the attribute further comprises a type of application, and wherein the separating the data to be transmitted comprises:
judging whether the type of the application program is the same as a preset type;
and when the type of the application program is determined to be the same as the preset type, separating the data to be transmitted.
3. The method of claim 2, wherein the attributes further comprise a data stream size of the application, the method further comprising:
when the type of the application program is not the same as the preset type, judging whether the data flow size corresponding to the application program is larger than a data volume threshold value or not;
and when the data flow size corresponding to the application program is determined to be larger than a data volume threshold, separating the data to be transmitted.
4. A method according to claim 3, wherein the attributes further comprise latency requirements of an application, the method further comprising:
When the data flow size corresponding to the application program is determined to be smaller than or equal to a data volume threshold, judging whether the time delay requirement of the application program is smaller than a time delay threshold or not;
and when the time delay requirement of the application program is less than a time delay threshold, separating the data to be transmitted.
5. The method of claim 1, wherein before determining whether the network side is configured to turn on the repeated transmission function of the PDCP layer, the method further comprises:
receiving bearing configuration information sent by a first base station and a second base station; the bearer configuration information carries a wireless data bearer (DRB) identifier;
and configuring a wireless bearing mode into a separated bearing according to the DRB identification.
6. The method according to claim 1, wherein the method further comprises:
transmitting the data to be transmitted to the first base station when the data amount of the data to be transmitted is smaller than or equal to a transmission threshold value;
or when the data quantity of the data to be transmitted is smaller than or equal to a transmission threshold value, transmitting the data to be transmitted to the second base station.
7. A data transmission apparatus, characterized in that it is applied to a terminal, said apparatus comprising:
An acquisition unit configured to acquire an attribute of an application program; the attributes include: the amount of data to be transmitted; the terminal supports a dual-connection mode, and in the dual-connection mode, the terminal communicates with both the first base station and the second base station;
the processing unit is used for separating the data to be transmitted to obtain two groups of separated different data when the data quantity of the data to be transmitted is larger than a transmission threshold value; transmitting one of the two sets of different data to the first base station through a split bearer, and transmitting the other of the two sets of different data to the second base station;
the obtaining unit is further configured to obtain a data amount of data to be transmitted of an application program, and includes: judging whether a network side is configured with a repeated transmission function of starting a Packet Data Convergence Protocol (PDCP) layer; and when the network side is not configured to start the repeated sending function of the PDCP layer, acquiring the data quantity of the PDCP protocol data unit PDU to be transmitted.
8. A data transmission device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any one of claims 1 to 6 when the program is executed by the processor.
9. A computer storage medium having stored thereon computer instructions which, when executed by a processor, implement the steps of the method of any of claims 1 to 6.
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