CN115623603A - Data transmission method and system, terminal and storage medium - Google Patents
Data transmission method and system, terminal and storage medium Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/002—Transmission of channel access control information
- H04W74/004—Transmission of channel access control information in the uplink, i.e. towards network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
- H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
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- 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
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Abstract
The invention discloses a data transmission method and system, a terminal and a storage medium. The data transmission method comprises the following steps: receiving SR configuration information sent by a base station, wherein the SR configuration information comprises the maximum SR transmission times; adjusting the maximum SR transmission times according to the priority of the data to be transmitted; sending an SR request uplink authorization resource to transmit data to be transmitted; and if the number of times of sending the SR reaches the maximum SR transmission number, initiating a random access request to re-request the uplink authorization resource. The invention adjusts the maximum SR transmission times according to the priority of the data to be transmitted, so that the terminal can adjust the time consumption of applying the uplink authorization resource according to the uplink service of the terminal, but not depend on the configuration of the base station completely, thereby improving the flexibility. Further, under the condition that the priority of the data to be transmitted is higher than the preset level, the time consumed for applying for the uplink authorization resource can be reduced by reducing the maximum transmission times of the SR configured by the base station, and the user experience is improved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a data transmission method and system, a terminal, and a storage medium.
Background
With the development of mobile communication technology, people use data services more and more frequently, and the rate of the data services directly affects the user experience. In an actual network environment, when a terminal is in a connected state, if there is Uplink data to be sent and there is no Uplink Grant at this time, it needs to apply for an Uplink Grant to a base station through an SR (Scheduling Request), and the terminal can send data in the allocated Uplink resource after receiving an Uplink Grant (UL Grant) issued by the base station.
According to the 10.1.5 protocol of 3gpp 36.213 and the summary of the real network mass test configuration, the maximum transmission time dsr-TransMax of the SR configuration is 64, the maximum SR period can be configured to be 80ms, and when the SR is configured as described above, the maximum number of times of SR transmission needs 64 × 80ms =5120ms (without considering the case of the prohibition timer SR-ProhibitTimer). If the SR is sent to the maximum transmission times and no uplink grant is yet applied, the uplink grant needs to be applied by initiating contention-based random access.
As shown in fig. 1, a terminal sends a Random Access Preamble to a base station through a PRACH (Physical Random Access Channel) to apply for an uplink grant. According to 5.1 in the protocol 3gpp 36.3.2.1 and summarized in the real network mass test configuration, the maximum transmission number preambleTransMax of the Preamble is configured to be 10 or more, the listening window size ra-ResponseWindowSize is configured to be sf10, the maximum transmission number maxHARQ-Msg3Tx of Msg3 is configured to be 5 or more, and the duration of the contention resolution timer mac-contentresolution timer is configured to be sf64. Under the condition that the Msg1 to Msg3 transmit and receive are normal, and it is assumed that after Preamble transmission, an RAR (Random Access Response) receives the Msg3 transmission time sf6, and it takes 10 × (sf 64+ sf 6) =700ms until the Preamble is transmitted to the maximum number of times. If the Preamble is sent to the maximum number of times, when the RRC (Radio Resource Control) layer receives a random Access protocol indication sent by the MAC (Media Access Control) layer, the Radio Link Failure (Radio Link Failure) is considered, and the terminal initiates an RRC connection reestablishment procedure to resume the service.
To sum up, according to the normal uplink authorization application process, if the terminal cannot apply uplink until the terminal actively initiates reestablishment to recover the service, it takes about 6 seconds, and the service and the user experience are seriously affected regardless of the time consumed by service interruption, the time consumed by service establishment delay is 6 seconds, or the service establishment overtime fails.
Disclosure of Invention
The invention aims to overcome the defects that the service and the user experience are influenced by long time consumed by uplink authorization application in the prior art, and provides a data transmission method and system, a terminal and a storage medium for improving the user experience.
The invention solves the technical problems through the following technical scheme:
a first aspect of the present invention provides a data transmission method, including:
receiving SR configuration information sent by a base station, wherein the SR configuration information comprises the maximum SR transmission times;
adjusting the SR maximum transmission frequency according to the priority of the data to be transmitted;
sending an SR request for uplink authorization resources to transmit the data to be transmitted;
and if the number of times of sending the SR reaches the maximum SR transmission number, initiating a random access request to re-request the uplink authorization resource.
Preferably, the step of adjusting the maximum SR transmission times according to the priority of the data to be transmitted specifically includes:
and if the priority of the data to be transmitted is higher than the preset level, reducing the maximum SR transmission times.
Preferably, the SR configuration information further includes an SR period; the step of adjusting the maximum SR transmission times according to the priority of the data to be transmitted specifically includes:
if the priority of the data to be transmitted is higher than a preset level, calculating the target transmission times according to a preset overtime length and the SR period;
and adjusting the SR maximum transmission frequency to be the target transmission frequency.
Preferably, the method further comprises:
receiving random access configuration information sent by a base station, wherein the random access configuration information comprises the maximum transmission times of a lead code;
adjusting the maximum transmission times of the lead code according to the priority of the data to be transmitted;
and in the step of initiating the random access request to re-request the uplink authorized resource, if the number of times of sending the lead code reaches the maximum transmission number of the lead code, initiating RRC connection reestablishment.
Preferably, the step of adjusting the maximum number of times of preamble transmission according to the priority of the data to be transmitted specifically includes:
and if the priority of the data to be transmitted is higher than the preset level, reducing the maximum transmission times of the lead code.
A second aspect of the present invention provides a data transmission system, including:
a receiving module, configured to receive SR configuration information sent by a base station, where the SR configuration information includes a maximum SR transmission number;
the adjusting module is used for adjusting the SR maximum transmission times according to the priority of the data to be transmitted;
the sending module is used for sending an SR request uplink authorization resource so as to transmit the data to be transmitted; and initiating a random access request to re-request uplink authorization resources under the condition that the number of times of sending the SR reaches the maximum transmission number of times of the SR.
Preferably, the adjusting module is specifically configured to reduce the SR maximum transmission frequency when the priority of the data to be transmitted is higher than a preset level.
Preferably, the SR configuration information further includes an SR period; the adjusting module specifically comprises a judging unit, a calculating unit and an adjusting unit;
the judging unit is used for judging whether the priority of the data to be transmitted is higher than a preset level or not and calling the calculating unit if the priority of the data to be transmitted is higher than the preset level;
the calculating unit is used for calculating the target transmission times according to the preset timeout duration and the SR period;
the adjusting unit is configured to adjust the SR maximum transmission times to the target transmission times.
Preferably, the receiving module is further configured to receive random access configuration information sent by a base station, where the random access configuration information includes a maximum number of preamble transmissions;
the adjusting module is further used for adjusting the maximum transmission times of the lead code according to the priority of the data to be transmitted;
the sending module is further configured to initiate RRC connection reestablishment when the number of times that the preamble is sent reaches the maximum number of preamble transmissions.
Preferably, the adjusting module is specifically configured to decrease the maximum number of preamble transmission times when the priority of the data to be transmitted is higher than a preset level.
A third aspect of the present invention provides a terminal, comprising:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the data transfer method of the first aspect.
A fourth aspect of the present invention provides a non-transitory computer-readable storage medium storing computer instructions for causing a computer to execute the data transmission method of the first aspect.
The positive progress effects of the invention are as follows: the maximum SR transmission times configured by the base station is adjusted according to the priority of the data to be transmitted, so that the terminal can adjust the time consumption for applying the uplink authorization resource according to the uplink service of the terminal, but does not depend on the configuration of the base station completely, and the flexibility is improved.
Further, when the priority of the data to be transmitted is higher than the preset level, by reducing the maximum transmission times of the SR configured by the base station, the random access can be quickly initiated and the uplink grant resource can be requested again when the SR is sent and the uplink grant resource cannot be applied, so that the time consumed for applying the uplink grant resource is reduced, the service interruption time or the service establishment time delay is reduced, and the experience of the user in using the terminal is improved.
Drawings
Fig. 1 is a flowchart of random access in the prior art.
Fig. 2 is a diagram of an exemplary application scenario provided by an embodiment of the present invention.
Fig. 3 is a schematic flowchart of a data transmission method according to embodiment 1 of the present invention.
Fig. 4 is a flowchart illustrating a data transmission method according to embodiment 2 of the present invention.
Fig. 5 is a block diagram of a data transmission system according to embodiment 3 of the present invention.
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
An exemplary application scenario of the embodiments of the present invention is described below.
The technical scheme of the invention can be applied to 5G (5 Generation) communication systems, 4G and 3G communication systems, and various future new communication systems such as 6G and 7G. The technical solution of the present invention is also applicable to different network architectures, including but not limited to a relay network architecture, a dual link architecture, a Vehicle-to-event architecture (Vehicle-to-any-object communication) architecture, and the like, and the embodiments of the present invention are not limited thereto. The embodiment of the present invention is not limited to this, and the base station in the embodiment of the present invention may be a communication network providing a communication service for the terminal, and include a base station of a radio access network, may further include a base station controller of the radio access network, and may further include a device on the core network side. The base station controller is a device for managing a base station, such as a Base Station Controller (BSC) in a 2G network, a Radio Network Controller (RNC) in a 3G network, and a device for controlling and managing a base station in a future new communication system.
In an alternative implementation manner, fig. 2 is an exemplary application scenario diagram provided in an embodiment of the present invention, and as shown in fig. 2, data communication is performed between a terminal 11 and a base station 12. The terminal 11 in the embodiment of the present invention may refer to various forms of User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station (mobile station, MS), a remote station, a remote terminal, a mobile device, a user terminal, a terminal device (terminal), a wireless communication device, a user agent, or a user equipment. The terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with a Wireless communication function, a computing device or other processing device connected to a Wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G Network or a terminal device in a future evolved Public Land Mobile Network (PLMN), and the like, which is not limited in the embodiments of the present invention.
A base station 12 (BS for short) in the embodiment of the present invention may also be referred to as a base station device, which is a device deployed in a Radio Access Network (RAN) to provide a wireless communication function. For example, a device providing a base station function in a 2G network includes a Base Transceiver Station (BTS), a device providing a base station function in a 3G network includes a node B (NodeB), a device providing a base station function in a 4G network includes an Evolved node B (eNB), and in a Wireless Local Area Network (WLAN), the device providing a base station function is an Access Point (AP), a device providing a base station function in a 5G New Radio (NR) is a gNB (gNB) providing a base station function, and a node B (ng-eNB) continuing to evolve, where the gNB and the terminal communicate with each other by using an NR technique, the ng-eNB and the terminal communicate with each other by using an E-Universal Terrestrial Radio Access (E-Universal Terrestrial Access) technique, and both the gNB and the ng-eNB may be connected to a 5G Core Network (CN). The base station in the embodiment of the present invention further includes a device and the like that provide a function of the base station in a future new communication system. The embodiment of the present invention is not limited thereto.
The embodiment of the invention defines a unidirectional communication link from an access network to a terminal as a downlink, data transmitted on the downlink is downlink data, and the transmission direction of the downlink data is called as a downlink direction; the unidirectional communication link from the terminal to the access network is an uplink, the data transmitted on the uplink is uplink data, and the transmission direction of the uplink data is called uplink direction.
Example 1
Fig. 3 is a schematic flowchart of a data transmission method provided in this embodiment, where the method may be executed by a data transmission system, the system may be implemented in a software and/or hardware manner, the system may include part or all of a terminal and a base station, and the following describes the data transmission method with reference to the terminal and the base station as an execution subject, as shown in fig. 3, the data transmission method provided in this embodiment may include:
step S101, the base station sends SR configuration information to the terminal, wherein the SR configuration information comprises SR maximum transmission times dsr-TransMax. In a specific implementation, the terminal receives the SR configuration information through a downlink channel.
And S102, the terminal adjusts the maximum SR transmission times according to the priority of the data to be transmitted.
It should be noted that, in step S102, for the data to be transmitted with different priorities, the maximum SR transmission times configured by the base station may be adjusted to be the same, or may be adjusted to be different. In a specific implementation example, the maximum transmission times of the SR configured by the base station is adjusted to C1 for the data to be transmitted with the priority level A1; and aiming at the data to be transmitted with the priority of A2, adjusting the maximum transmission times of the SR configured by the base station to C2.
In an optional implementation manner, the SR configuration information further includes an SR period. Step S102 specifically includes steps S102a and S102b:
step S102a, if the priority of the data to be transmitted is higher than a preset level, calculating the target transmission times according to a preset timeout duration and the SR period.
And step S102b, adjusting the SR maximum transmission frequency to the target transmission frequency.
In this embodiment, the maximum SR transmission frequency is adjusted by limiting the timeout period, and specifically, the target transmission frequency is obtained by dividing the preset timeout period by the SR period configured by the base station. In a specific implementation example, the preset timeout duration SR _ timer is set to 640ms, the maximum SR transmission frequency configured by the base station is 64, the SR period is 40ms, and the target transmission frequency is 640ms/40ms =16 according to the preset timeout duration and the SR period, so that the maximum SR transmission frequency configured by the base station is adjusted from 64 to 16.
In an optional implementation manner of step S102, if the priority of the data to be transmitted is higher than the preset level, the SR maximum transmission number is decreased. The preset level can be set according to actual conditions.
Step S103, the terminal sends an SR request uplink authorization resource to the base station so as to transmit the data to be transmitted. If the number of times that the terminal sends the SR reaches the maximum SR transmission number, a random access request is sent to the base station to re-request the uplink authorization resource.
It should be noted that before the number of SR sending times reaches the maximum SR transmission number, if the terminal has received the uplink grant resource sent by the base station, the terminal transmits the data to be transmitted according to the uplink grant resource, and does not need to initiate a random access request to the base station.
In addition, in a scenario where the channel environment quality is poor, the success rates of SR transmission and downlink reception are difficult to guarantee, and in order to avoid frequent RRC reestablishment triggering, the maximum SR transmission frequency configured for the terminal by the base station is not adjusted when the channel quality of the terminal is lower than a threshold. In an example of the implementation, if the RSRP (Reference Signal Receiving Power) of the terminal is lower than the Power threshold, the configured maximum number of SR transmissions is not adjusted. In one example of implementation, if the SINR (Signal to Interference plus Noise Ratio) of the terminal is lower than the proportional threshold, the maximum number of SR transmissions is not adjusted.
In the embodiment, the maximum SR transmission times configured by the base station is adjusted according to the priority of the data to be transmitted, so that the terminal can adjust the time consumed for applying the uplink authorization resource according to the uplink service of the terminal, but does not depend on the configuration of the base station completely, and the flexibility is improved.
Further, when the priority of the data to be transmitted is higher than the preset level, by reducing the maximum transmission times of the SR configured by the base station, the random access can be quickly initiated and the uplink authorized resource can be requested again when the SR is sent and the uplink authorized resource cannot be applied, so that the time consumed for applying the uplink authorized resource is reduced, the service interruption time or the service establishment time delay is reduced, and the experience of the user in using the terminal is improved.
Example 2
Fig. 4 is a schematic flow chart of the data transmission method provided in this embodiment, where the method may be executed by a data transmission system, the system may be implemented in a software and/or hardware manner, the system may include part or all of a terminal and a base station, and the following describes the data transmission method with reference to the terminal and the base station as an execution subject, as shown in fig. 4, the data transmission method provided in this embodiment may include:
step S201, a base station sends SR configuration information and random access configuration information to a terminal, wherein the SR configuration information comprises SR maximum transmission times dsr-TransMax, and the random access configuration information comprises preamble maximum transmission times preambleTransMax. In a specific implementation, the terminal receives the SR configuration information and the random access configuration information through a downlink channel.
Step S202, the terminal adjusts the SR maximum transmission times and the lead code maximum transmission times according to the priority of the data to be transmitted.
It should be noted that, in step S202, for the data to be transmitted with different priorities, the maximum SR transmission times configured by the base station may be adjusted to be the same, and the maximum preamble transmission times configured by the base station may be adjusted to be the same. For the data to be transmitted with different priorities, the maximum SR transmission times configured by the base station may also be adjusted to be different, and the maximum preamble transmission times configured by the base station may also be adjusted to be different.
In an implementation manner that is optional in step S202, if the priority of the data to be transmitted is higher than a preset level, the SR maximum transmission number and the preamble maximum transmission number are decreased. The preset level can be set according to actual conditions.
Step S203, the terminal sends SR request uplink authorization resource to the base station so as to transmit the data to be transmitted. If the number of times that the terminal sends the SR reaches the maximum SR transmission number, step S204 is performed.
Step S204, the terminal sends a random access request to the base station to re-request the uplink authorization resource. If the number of times of sending the preamble reaches the maximum number of times of transmitting the preamble, step S205 is executed.
Step S205, the terminal initiates RRC connection reestablishment to the base station.
It should be noted that before the number of SR sending times reaches the maximum SR transmission number, if the terminal has received the uplink grant resource sent by the base station, the terminal transmits the data to be transmitted according to the uplink grant resource, and does not need to initiate a random access request to the base station. Before the number of times of sending the lead code reaches the maximum transmission number of the lead code, if the terminal has received the uplink authorized resource sent by the base station, the data to be transmitted is transmitted according to the uplink authorized resource without initiating a reconstruction process.
In the embodiment, the maximum SR transmission times and the maximum preamble transmission times configured by the base station are adjusted according to the priority of the data to be transmitted, so that the terminal can adjust the time consumed for applying the uplink authorization resource according to the uplink service of the terminal, instead of relying on the configuration of the base station completely, and the flexibility is improved.
Further, when the priority of the data to be transmitted is higher than the preset level, by reducing the maximum transmission times of the SR and the maximum transmission times of the preamble configured by the base station, the random access can be quickly initiated when the SR is not applied for the uplink grant resource, and the reconstruction can be quickly initiated to recover the service when the random access is not applied for the uplink grant resource, so that the time consumed for applying the uplink grant resource is reduced, the service interruption time or the service establishment delay is reduced, and the experience of the user in using the terminal is improved.
Example 3
Fig. 5 is a schematic structural diagram of a data transmission system provided in this embodiment. As shown in fig. 5, the present embodiment provides a data transmission system 50, which includes a receiving module 51, an adjusting module 52, and a sending module 53.
The receiving module is configured to receive SR configuration information sent by a base station, where the SR configuration information includes a maximum number of SR transmissions.
The adjusting module is used for adjusting the SR maximum transmission times according to the priority of the data to be transmitted.
In an optional implementation manner, the SR configuration information further includes an SR period; the adjusting module specifically comprises a judging unit, a calculating unit and an adjusting unit.
The judging unit is used for judging whether the priority of the data to be transmitted is higher than a preset level or not and calling the calculating unit if the priority of the data to be transmitted is higher than the preset level.
The calculating unit is used for calculating the target transmission times according to the preset timeout duration and the SR period.
The adjusting unit is configured to adjust the SR maximum transmission frequency to the target transmission frequency.
In an optional implementation manner, the adjusting module is specifically configured to reduce the maximum SR transmission frequency when the priority of the data to be transmitted is higher than a preset level.
The sending module is used for sending an SR request uplink authorization resource so as to transmit the data to be transmitted; and initiating a random access request to re-request uplink authorization resources under the condition that the number of times of sending the SR reaches the maximum transmission number of times of the SR.
In an optional implementation manner, the receiving module is further configured to receive random access configuration information sent by the base station, where the random access configuration information includes a maximum number of preamble transmissions. The adjusting module is further configured to adjust the maximum transmission times of the preamble according to the priority of the data to be transmitted. The sending module is further configured to initiate RRC connection reestablishment when the number of times of sending the preamble reaches the maximum number of times of transmission of the preamble.
In an optional embodiment, the adjusting module is specifically configured to reduce the maximum number of times of preamble transmission when the priority of the data to be transmitted is higher than a preset level.
In the embodiment, the maximum SR transmission times and/or the maximum preamble transmission times configured by the base station are/is adjusted according to the priority of the data to be transmitted, so that the terminal can adjust the time consumption for applying the uplink authorization resource according to the uplink service of the terminal, instead of relying on the configuration of the base station completely, and the flexibility is improved.
Further, when the priority of the data to be transmitted is higher than the preset level, by reducing the maximum SR transmission frequency and/or the maximum preamble transmission frequency configured by the base station, the random access can be quickly initiated when the SR application is not sent and the service can be quickly reestablished to recover the service when the random access application is not sent and the uplink authorized resource is not applied, so that the time consumed for applying the uplink authorized resource is reduced, the service interruption time or the service establishment delay is reduced, and the experience of the user in using the terminal is improved.
Example 4
An embodiment of the present invention provides a non-transitory computer-readable storage medium storing computer instructions for causing a computer to execute the data transmission method in embodiment 1 or embodiment 2.
More specific examples, among others, that the readable storage medium may employ may include, but are not limited to: a portable disk, a hard disk, random access memory, read only memory, erasable programmable read only memory, optical storage device, magnetic storage device, or any suitable combination of the foregoing.
In a possible implementation, the invention may also be implemented in the form of a program product comprising program code for causing a terminal device to perform the method of implementing the data transmission in embodiment 1 or embodiment 2 when the program product is run on the terminal device.
Where program code for carrying out the invention is written in any combination of one or more programming languages, the program code may be executed entirely on the user device, partly on the user device, as a stand-alone software package, partly on the user device and partly on a remote device or entirely on the remote device.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes or modifications to these embodiments may be made by those skilled in the art without departing from the principle and spirit of this invention, and these changes and modifications are within the scope of this invention.
Claims (12)
1. A method of data transmission, comprising:
receiving SR configuration information sent by a base station, wherein the SR configuration information comprises the maximum SR transmission times;
adjusting the SR maximum transmission frequency according to the priority of the data to be transmitted;
sending an SR request for uplink authorization resources to transmit the data to be transmitted;
and if the number of times of sending the SR reaches the maximum SR transmission number, initiating a random access request to re-request the uplink authorization resource.
2. The method according to claim 1, wherein the step of adjusting the SR maximum transmission times according to the priority of the data to be transmitted specifically comprises:
and if the priority of the data to be transmitted is higher than the preset level, reducing the SR maximum transmission times.
3. The method of claim 1, wherein the SR configuration information further comprises an SR period; the step of adjusting the maximum SR transmission times according to the priority of the data to be transmitted specifically includes:
if the priority of the data to be transmitted is higher than a preset level, calculating the target transmission times according to a preset timeout duration and the SR period;
and adjusting the SR maximum transmission frequency to be the target transmission frequency.
4. The method of any one of claims 1-3, further comprising:
receiving random access configuration information sent by a base station, wherein the random access configuration information comprises the maximum transmission times of a lead code;
adjusting the maximum transmission times of the lead code according to the priority of the data to be transmitted;
and in the step of initiating the random access request to re-request the uplink authorized resource, if the number of times of sending the lead code reaches the maximum lead code transmission number, initiating RRC connection reestablishment.
5. The method of claim 4, wherein the step of adjusting the maximum number of transmissions of the preamble according to the priority of the data to be transmitted comprises:
and if the priority of the data to be transmitted is higher than a preset level, reducing the maximum transmission times of the lead code.
6. A data transmission system, comprising:
a receiving module, configured to receive SR configuration information sent by a base station, where the SR configuration information includes a maximum SR transmission number;
the adjusting module is used for adjusting the SR maximum transmission times according to the priority of the data to be transmitted;
the sending module is used for sending an SR request uplink authorization resource so as to transmit the data to be transmitted; and initiating a random access request to re-request uplink authorization resources under the condition that the number of times of sending the SR reaches the maximum transmission number of times of the SR.
7. The system of claim 6, wherein the adjusting module is specifically configured to decrease the SR maximum transmission number when the priority of the data to be transmitted is higher than a preset level.
8. The system of claim 6, wherein the SR configuration information further includes a SR period; the adjusting module specifically comprises a judging unit, a calculating unit and an adjusting unit;
the judging unit is used for judging whether the priority of the data to be transmitted is higher than a preset level or not and calling the calculating unit if the priority of the data to be transmitted is higher than the preset level;
the calculating unit is used for calculating the target transmission times according to a preset timeout duration and the SR period;
the adjusting unit is configured to adjust the SR maximum transmission frequency to the target transmission frequency.
9. The system of any one of claims 6-8,
the receiving module is further configured to receive random access configuration information sent by the base station, where the random access configuration information includes a maximum number of preamble transmissions;
the adjusting module is further used for adjusting the maximum transmission times of the lead code according to the priority of the data to be transmitted;
the sending module is further configured to initiate RRC connection reestablishment if the number of times the preamble is sent reaches the maximum number of preamble transmissions.
10. The system of claim 9, wherein the adjusting module is specifically configured to decrease the maximum number of transmissions of the preamble if the priority of the data to be transmitted is higher than a predetermined level.
11. A terminal, comprising:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the data transfer method of any one of claims 1-5.
12. A non-transitory computer readable storage medium storing computer instructions for causing a computer to perform the data transmission method according to any one of claims 1 to 5.
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