CN112332967B - 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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- CN112332967B CN112332967B CN202011349417.0A CN202011349417A CN112332967B CN 112332967 B CN112332967 B CN 112332967B CN 202011349417 A CN202011349417 A CN 202011349417A CN 112332967 B CN112332967 B CN 112332967B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0058—Allocation criteria
- H04L5/0064—Rate requirement of the data, e.g. scalable bandwidth, data priority
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/19—Connection re-establishment
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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
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 random access configuration information sent by a base station, wherein the random access configuration information comprises the maximum transmission times of a preamble; adjusting the maximum transmission times of the preamble according to the priority of the data to be transmitted; initiating a random access request to request uplink authorized resources to transmit data to be transmitted; and if the number of times of sending the preamble reaches the maximum transmission number of the preamble, initiating RRC connection reestablishment. The invention adjusts the maximum transmission times of the preamble according to the priority of the data to be transmitted, so that the terminal can adjust the time for applying the uplink authorized resource according to the uplink service of the terminal, and the terminal is not completely dependent on the configuration of the base station, thereby improving the flexibility. Further, under the condition that the priority of the data to be transmitted is higher than a preset level, the time for applying for uplink authorized resources can be reduced by reducing the maximum transmission times of the preamble 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 connection state, if Uplink data needs to be sent and no Uplink Grant exists at the moment, the terminal needs to apply for the Uplink Grant to a base station through an SR (Scheduling Request ), and can send the data on an allocated Uplink resource after receiving the Uplink Grant (UL Grant) issued by the base station.
According to the summary of the 10.1.5 and real network quantity test configuration in the 3gpp 36.213 protocol, the maximum transmission number dsr-TransMax of the SR configuration is 64, the SR period is maximum configurable to 80ms, and in the case of the configuration described above, the maximum number of SR transmissions requires 64×80ms=5120ms (regardless of the prohibit timer). If the SR is sent to the maximum number of transmissions without applying for uplink grant, then the uplink grant needs to be applied by initiating contention based random access.
As shown in fig. 1, the terminal transmits a random access Preamble to the base station through PRACH (Physical Random Access Channel ) to apply for uplink grant. According to 5.1 in 3GPP 36.3.2.1 protocol and real network quantity test configuration summary, the maximum transmission number preableTransMax of Preamble is configured to 10 or more, the listening window size ra-ResponseWindowSize is configured to sf10, the maximum transmission number maxHARQ-Msg3Tx of Msg3 is configured to 5 or more, and the duration of contention resolution timer mac-contenResolutionTimer is configured to sf64. In the case where Msg1 to Msg3 transmit/receive is normal, and assuming that Preamble transmission is followed, the RAR (Random Access Response ) takes sf6 to receive Msg3 transmission, and 10×10×s64+s6) =700 ms is required for Preamble transmission up to the maximum number. If the Preamble is sent the maximum number of times, when the RRC (Radio Resource Control ) layer receives random access problem indication sent by the MAC (Media Access Control, medium access control) layer, the radio link is considered to be invalid (Radio Link Failure), and the terminal initiates an RRC connection reestablishment procedure to resume the service.
In summary, according to the normal uplink authorization application procedure, if the terminal does not apply uplink until the terminal actively initiates the reestablishment to resume the service, the time is about 6s, and the service and the user experience are seriously affected whether the service is interrupted, the time is 6s during the service establishment delay or the service establishment timeout fails.
Disclosure of Invention
The invention aims to overcome the defect that the uplink authorization application consumes long time and affects service and user experience in the prior art, and provides a data transmission method, a system, a terminal and a storage medium for improving the user experience.
The invention solves the technical problems by the following technical scheme:
a first aspect of the present invention provides a data transmission method, including:
receiving random access configuration information sent by a base station, wherein the random access configuration information comprises the maximum transmission times of a preamble;
adjusting the maximum transmission times of the preamble according to the priority of the data to be transmitted;
initiating a random access request to request an uplink authorized resource to transmit the data to be transmitted;
and if the number of times of sending the preamble reaches the maximum transmission number of the preamble, initiating RRC connection reestablishment.
Preferably, the step of adjusting the maximum transmission times of the preamble 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 a preset level, reducing the maximum transmission times of the preamble.
Preferably, receiving SR configuration information sent by a base station, wherein the SR configuration information comprises the SR maximum transmission times;
adjusting the SR maximum transmission times according to the priority of the data to be transmitted;
transmitting an SR request uplink grant resource to transmit the data to be transmitted;
and if the number of times of sending the SR reaches the maximum transmission number of times of the SR, initiating the random access request to re-request the uplink authorized resource.
Preferably, the step of adjusting the SR maximum transmission frequency 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 a preset level, reducing the SR maximum transmission times.
Preferably, the SR configuration information further includes an SR period; the step of adjusting the SR maximum 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 times to the target transmission times.
A second aspect of the present invention provides a data transmission system comprising:
a receiving module, configured to receive random access configuration information sent by a base station, where the random access configuration information includes a maximum transmission number of a preamble;
the adjusting module is used for adjusting the maximum transmission times of the preamble according to the priority of the data to be transmitted;
a sending module, configured to initiate a random access request to request an uplink grant resource to transmit the data to be transmitted; and initiating RRC connection reestablishment under the condition that the number of times of sending the preamble reaches the maximum transmission number of the preamble.
Preferably, the adjustment module is specifically configured to reduce the maximum transmission times of the preamble when the priority of the data to be transmitted is higher than a preset level.
Preferably, the receiving module is further configured to receive SR configuration information sent by the base station, where the SR configuration information includes SR maximum transmission times;
the adjustment module is further used for adjusting the SR maximum transmission times according to the priority of the data to be transmitted;
the sending module is further configured to send an SR request for uplink grant resources to transmit the data to be transmitted; and under the condition that the times of sending the SR reach the maximum transmission times of the SR, initiating the random access request to re-request the uplink authorized resource.
Preferably, the adjustment 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, and calling the calculating unit if the priority of the data to be transmitted is higher than the preset level;
the computing unit is used for computing target transmission times according to the preset timeout duration and the SR period;
the adjusting unit is used for adjusting the SR maximum transmission times to the target transmission times.
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 liquid crystal display device comprises a liquid crystal display device,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the data transmission 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 the computer to perform the data transmission method of the first aspect.
The invention has the positive progress effects that: the maximum transmission times of the preamble 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 for applying for the uplink authorized resource according to the uplink service of the terminal instead of completely depending on the configuration of the base station, and the flexibility is improved.
Further, under the condition that the priority of the data to be transmitted is higher than the preset level, the maximum transmission times of the preamble configured by the base station are reduced, so that the RRC connection reestablishment can be quickly initiated to recover the service under the condition that the application of the uplink authorized resource cannot be initiated by the random access request, the time consumption 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 using the terminal is improved.
Drawings
Fig. 1 is a flow chart of random access in the prior art.
Fig. 2 is an exemplary application scenario diagram provided by an embodiment of the present invention.
Fig. 3 is a flow chart of a data transmission method provided in embodiment 1 of the present invention.
Fig. 4 is a flow chart of a data transmission method provided in 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 means of the following examples, which are not intended to limit the scope of the invention.
In the following, an exemplary application scenario of an embodiment of the present invention is described.
The technical scheme of the invention can be applied to 5G (5 Generation) communication systems, 4G and 3G communication systems, and also can be applied to various new communication systems in the future, such as 6G, 7G and the like. 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-evaluation architecture, etc., which are not limited to this embodiment of the present invention. The embodiment of the invention is not limited thereto, and the base station in the embodiment of the invention may be a communication network for providing communication services for the terminal, and may include a base station of a radio access network, a base station controller of the radio access network, and a device on a core network side. The base station controller is a device for managing base stations, for example, a base station controller (base station controller, abbreviated as BSC) in a 2G network, a radio network controller (radio network controller, abbreviated as RNC) in a 3G network, and may also refer to a device for controlling and managing base stations in a new communication system in the future.
In an alternative implementation, fig. 2 is an exemplary application scenario diagram provided by an embodiment of the present invention, where, 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 (MS), a remote station, a remote terminal, a mobile device, a user terminal, a terminal device (terminal equipment), a wireless communication device, a user agent, or a user apparatus. The terminal device may also be a cellular phone, a cordless phone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device with wireless communication capability, 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 (Public Land Mobile Network, PLMN), etc., which the embodiments of the present invention are not limited to.
A base station 12 (BS) in an embodiment of the present invention, which may also be referred to as a base station apparatus, is a device that is deployed in a Radio Access Network (RAN) to provide a wireless communication function. For example, the device for providing a base station function in the 2G network includes a base Radio transceiver station (base transceiver station, abbreviated as BTS), the device for providing a base station function in the 3G network includes a node B (NodeB), the device for providing a base station function in the 4G network includes an evolved NodeB (eNB), the device for providing a base station function in the wireless local area network (wireless local area networks, abbreviated as WLAN) is an Access Point (AP), the device for providing a base station function in the 5G New Radio (NR) is a gNB, and the node B (ng-eNB) continues to evolve, wherein the gNB and the terminal communicate using NR technology, the ng-eNB and the terminal communicate using E-UTRA (Evolved Universal Terrestrial Radio Access) technology, and the gNB and the ng-eNB are both connected to a 5G Core Network (CN). The base station in the embodiment of the invention also comprises equipment and the like for providing the function of the base station in a new communication system in the future. The embodiments of the present invention are not limited in this regard.
The embodiment of the invention defines a unidirectional communication link from an access network to a terminal as a downlink, wherein data transmitted on the downlink is downlink data, and the transmission direction of the downlink data is called as a downlink direction; and 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 as uplink direction.
Example 1
Fig. 3 is a flow chart of a data transmission method provided in this embodiment, where the method may be performed by a data transmission system, and the system may be implemented by software and/or hardware, and the system may include part or all of a terminal and a base station, and the data transmission method is described below with reference to the terminal and the base station for executing a main body, and as shown in fig. 3, the data transmission method provided in this embodiment may include:
step S101, a base station sends random access configuration information to a terminal, wherein the random access configuration information comprises preamble maximum transmission times preambmantransMax. In a specific implementation, the terminal receives the random access configuration information through a downlink channel.
Step S102, the terminal adjusts the maximum transmission times of the preamble according to the priority of the data to be transmitted.
In step S102, the maximum transmission times of the preambles configured by the base station may be adjusted to be the same or different for the data to be transmitted with different priorities. In one example of implementation, for data to be transmitted with priority A1, the maximum transmission number of the preamble configured by the base station is adjusted to C1; and aiming at the data to be transmitted with the priority of A2, adjusting the maximum transmission times of the preamble configured by the base station to C2.
In an alternative embodiment of step S102, if the priority of the data to be transmitted is higher than a preset level, the maximum transmission frequency of the preamble is reduced. The preset level can be set according to actual conditions.
Step S103, the terminal initiates a random access request to the base station to request the uplink authorized resource to transmit the data to be transmitted. And if the number of times of sending the preamble by the terminal reaches the maximum transmission number of the preamble, initiating RRC connection reestablishment to the base station.
Before the number of times of transmitting the preamble reaches the maximum number of times of transmitting the preamble, if the terminal has received the uplink grant resource transmitted by the base station, the data to be transmitted may be transmitted according to the uplink grant resource, and no RRC connection reestablishment needs to be initiated to the base station.
In addition, in the scene of poor channel environment quality, the success rate of the sending and the receiving of the preamble is difficult to ensure, and in order to avoid frequent triggering of RRC reconstruction, the maximum transmission times of the preamble configured by the base station for the terminal are not adjusted under the condition that the channel quality of the terminal is lower than a threshold value. In one example of implementation, if the RSRP (Reference Signal Receiving Power, reference signal received power) of the terminal is below the power threshold, the configured maximum number of preamble transmissions is not adjusted. In one example of implementation, if the SINR (Signal to Interference plus Noise Ratio ) of the terminal is below the proportional threshold, the configured maximum number of preamble transmissions is not adjusted.
In this embodiment, the maximum transmission times of the preamble 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 for applying for the uplink grant resource according to its own uplink service, instead of completely relying on the configuration of the base station, thereby improving the flexibility.
Further, under the condition that the priority of the data to be transmitted is higher than the preset level, the maximum transmission times of the preamble configured by the base station are reduced, so that the RRC connection reestablishment can be quickly initiated to recover the service under the condition that the application of the uplink authorized resource cannot be initiated by the random access request, the time consumption 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 using the terminal is improved.
Example 2
Fig. 4 is a flow chart of a data transmission method provided in this embodiment, where the method may be performed by a data transmission system, and the system may be implemented by software and/or hardware, and the system may include part or all of a terminal and a base station, and the data transmission method is described below with reference to the terminal and the base station for executing a main body, and 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 preambLTransMax. In a specific implementation, the terminal receives SR configuration information and random access configuration information through a downlink channel.
Step S202, the terminal adjusts the SR maximum transmission times and the preamble 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 SR maximum transmission times configured by the base station may be adjusted to be the same, and the preamble maximum transmission times configured by the base station may be adjusted to be the same. For the data to be transmitted with different priorities, the SR maximum transmission times configured by the base station can be adjusted to be different, and the preamble maximum transmission times configured by the base station can be adjusted to be different.
In an alternative embodiment, the SR configuration information further includes an SR period. Step S202 specifically includes steps S202a and S202b:
step S202a, 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 period and the SR period.
Step S202b, adjusting the SR maximum transmission frequency to the target transmission frequency.
In this embodiment, the maximum SR transmission number is adjusted by limiting the timeout period, and specifically, the target transmission number is obtained by dividing the preset timeout period by the SR period configured by the base station. In an example of implementation, the preset timeout period sr_timer is set to 640ms, the SR maximum transmission number configured by the base station is 64, the SR period is 40ms, and the target transmission number is 640ms/40 ms=16 according to the preset timeout period and the SR period, so that the SR maximum transmission number configured by the base station is adjusted from 64 to 16.
In an alternative embodiment of step S202, if the priority of the data to be transmitted is higher than a preset level, the SR maximum transmission frequency and the preamble maximum transmission frequency are reduced. The preset level can be set according to actual conditions.
Step 203, the terminal sends an SR request to the base station for uplink grant resources to transmit the data to be transmitted. If the number of times the terminal transmits the SR reaches the SR maximum transmission number, step S204 is executed.
Step S204, the terminal initiates a random access request to the base station to re-request the uplink authorized resource. If the number of times of transmitting 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.
Before the number of times of transmitting the SR reaches the maximum number of times of SR transmission, if the terminal has received the uplink grant resource transmitted by the base station, the data to be transmitted is transmitted according to the uplink grant resource, and no random access request needs to be initiated to the base station. Before the number of times of sending the preamble reaches the maximum number of times of transmission of the preamble, 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, and the reconstruction process does not need to be initiated.
In this embodiment, the SR maximum transmission number and the preamble maximum transmission number 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 for applying for the uplink grant resource according to its own uplink service, instead of completely relying on the configuration of the base station, thereby improving flexibility.
Further, when the priority of the data to be transmitted is higher than the preset level, by reducing the SR maximum transmission times and the preamble maximum transmission times configured by the base station, the random access can be initiated quickly when the SR application is not applied for the uplink grant resource, and the reconstruction can be initiated quickly when the random access application is not applied for the uplink grant resource, so that the time consumed for applying for the uplink grant resource is reduced, the service interruption time or the service establishment time delay is reduced, and the experience of the user using the terminal is improved.
Example 3
Fig. 5 is a schematic structural diagram of a data transmission system according to the present 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 transmitting module 53.
The receiving module is used for receiving random access configuration information sent by the base station, wherein the random access configuration information comprises the maximum transmission times of the lead code.
The adjusting module is used for adjusting the maximum transmission times of the preamble according to the priority of the data to be transmitted.
In an optional implementation manner, the adjusting module is specifically configured to reduce the maximum transmission number of the preamble when the priority of the data to be transmitted is higher than a preset level.
The sending module is used for initiating a random access request to request uplink authorized resources to transmit the data to be transmitted; and initiating RRC connection reestablishment under the condition that the number of times of sending the preamble reaches the maximum transmission number of the preamble.
In an optional implementation manner, the receiving module is further configured to receive SR configuration information sent by the base station, where the SR configuration information includes a SR maximum transmission number. The adjustment module is further configured to adjust the SR maximum transmission times according to the priority of the data to be transmitted. The sending module is further configured to send an SR request for uplink grant resources to transmit the data to be transmitted; and under the condition that the times of sending the SR reach the maximum transmission times of the SR, initiating the random access request to re-request the uplink authorized resource.
In an optional implementation manner, the adjustment 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.
In an optional embodiment, 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, 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 used for adjusting the SR maximum transmission times to the target transmission times.
In this embodiment, the SR maximum transmission number and/or the preamble maximum transmission number 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 for applying for the uplink grant resource according to its own uplink service, instead of completely relying on the configuration of the base station, thereby improving flexibility.
Further, when the priority of the data to be transmitted is higher than the preset level, by reducing the SR maximum transmission times and/or the preamble maximum transmission times configured by the base station, random access can be initiated quickly when the SR application is sent but the uplink grant resource is not applied, and reconstruction can be initiated quickly when the random access application is not applied but the uplink grant resource is applied, so as to recover the service, thereby reducing the time consumption of applying the uplink grant resource, reducing the service interruption time or the service establishment time delay, and improving the experience of the user using the terminal.
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 specifically, among others, readable storage media may be employed including, but not limited to: portable disk, 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 embodiment, the invention may also be implemented in the form of a program product comprising program code for causing a terminal device to carry out the data transmission method of implementing embodiment 1 or embodiment 2 when said program product is run on the terminal device.
Wherein the program code for carrying out the invention may be written in any combination of one or more programming languages, which program code may execute entirely on the user device, partly on the user device, as a stand-alone software package, partly on the user device and partly on the 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 the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the invention, but such changes and modifications fall within the scope of the invention.
Claims (10)
1. A data transmission method, comprising:
receiving SR configuration information and random access configuration information sent by a base station, wherein the SR configuration information comprises SR maximum transmission times, and the random access configuration information comprises preamble maximum transmission times;
adjusting the SR maximum transmission times and the preamble maximum transmission times according to the priority of the data to be transmitted;
transmitting an SR request uplink grant resource to transmit the data to be transmitted;
if the number of times of sending the SR reaches the SR maximum transmission number, initiating a random access request to request an uplink authorized resource to transmit the data to be transmitted;
and if the number of times of sending the preamble reaches the maximum transmission number of the preamble, initiating RRC connection reestablishment.
2. The method of claim 1, wherein the step of adjusting the maximum number of transmissions of the preamble 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 a preset level, reducing the maximum transmission times of the preamble.
3. The method of claim 1, wherein the step of adjusting the SR maximum number of transmissions 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 a preset level, reducing the SR maximum transmission times.
4. The method of claim 1, wherein the SR configuration information further comprises an SR period; the step of adjusting the SR maximum 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 times to the target transmission times.
5. A data transmission system, comprising:
the receiving module is used for receiving SR configuration information and random access configuration information sent by the base station, wherein the SR configuration information comprises SR maximum transmission times, and the random access configuration information comprises preamble maximum transmission times;
the adjustment module is used for adjusting the SR maximum transmission times and the preamble maximum transmission times according to the priority of the data to be transmitted;
a sending module, configured to send an SR request for uplink grant resources to transmit the data to be transmitted; under the condition that the number of times of sending the SR reaches the maximum transmission number of times of the SR, initiating a random access request to request an uplink authorized resource to transmit the data to be transmitted; and initiating RRC connection reestablishment under the condition that the number of times of sending the preamble reaches the maximum transmission number of the preamble.
6. The system of claim 5, wherein the adjustment module is specifically configured to reduce the maximum number of transmissions of the preamble if the priority of the data to be transmitted is higher than a preset level.
7. The system of claim 5, wherein the adjustment module is specifically configured to reduce the SR maximum number of transmissions if the priority of the data to be transmitted is higher than a preset level.
8. The system of claim 5, wherein the SR configuration information further comprises an SR cycle; 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, and calling the calculating unit if the priority of the data to be transmitted is higher than the preset level;
the computing unit is used for computing target transmission times according to the preset timeout duration and the SR period;
the adjusting unit is used for adjusting the SR maximum transmission times to the target transmission times.
9. A terminal, comprising:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein, the liquid crystal display device comprises a liquid crystal display device,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the data transmission method of any one of claims 1-4.
10. A non-transitory computer readable storage medium storing computer instructions for causing the computer to perform the data transmission method of any one of claims 1-4.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011349417.0A CN112332967B (en) | 2020-11-26 | 2020-11-26 | Data transmission method and system, terminal and storage medium |
| US18/254,483 US20230422294A1 (en) | 2020-11-26 | 2021-11-17 | Method for data transmission, terminal, and chip |
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| CN115623603B (en) * | 2020-11-26 | 2024-02-23 | 紫光展锐(重庆)科技有限公司 | Data transmission method and system, terminal and storage medium |
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| US20230422294A1 (en) * | 2020-11-26 | 2023-12-28 | Unisoc (Chongqing) Technologies Co., Ltd. | Method for data transmission, terminal, and chip |
| CN114175840B (en) * | 2021-11-04 | 2023-04-11 | 北京小米移动软件有限公司 | Random access method and device |
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