CN117156585A - Data transmission method, device, equipment and storage medium - Google Patents
Data transmission method, device, equipment and storage medium Download PDFInfo
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- CN117156585A CN117156585A CN202210556840.0A CN202210556840A CN117156585A CN 117156585 A CN117156585 A CN 117156585A CN 202210556840 A CN202210556840 A CN 202210556840A CN 117156585 A CN117156585 A CN 117156585A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 111
- 238000000034 method Methods 0.000 title claims abstract description 61
- 238000004891 communication Methods 0.000 claims description 14
- 238000004590 computer program Methods 0.000 claims description 12
- 238000011084 recovery Methods 0.000 claims description 11
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/27—Transitions between radio resource control [RRC] states
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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
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0055—Physical resource allocation for ACK/NACK
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Abstract
The application discloses a data transmission method, a device, equipment and a storage medium. Wherein the method comprises the following steps: and under the condition that the terminal is in an inactive state, the terminal transmits downlink small data packets. The embodiment of the application provides a downlink small data packet transmission mechanism to ensure that a terminal in an inactive state supports downlink small data packet transmission.
Description
Technical Field
The present application relates to the field of wireless communications technologies, and in particular, to a data transmission method, apparatus, device, and storage medium.
Background
Currently, a terminal may support uplink packet transmission (SDT, small Data Transmission), in which a network side may configure a random access-based uplink small data packet (RA-SDT, random Access Small data transmission) access resource and an uplink grant resource-based small data packet transmission (CG-SDT, configured Grant Small Data Transmission) resource for the terminal supporting uplink packet transmission. However, at present, a downlink small data packet transmission mechanism is not involved, that is, it is needed to provide a downlink small data packet transmission mechanism to ensure the downlink small data packet transmission of the terminal.
Disclosure of Invention
In view of this, the embodiments of the present application desire to provide a data transmission method, apparatus, device and storage medium.
The technical scheme of the embodiment of the application is realized as follows:
at least one embodiment of the present application provides a data transmission method, which is applied to a terminal, and the method includes:
and under the condition that the terminal is in an inactive state, the terminal transmits downlink small data packets.
In addition, according to at least one embodiment of the present application, the terminal performs transmission of a downlink small data packet, including:
receiving indication information sent by network equipment; the indication information is used for indicating the terminal to transmit downlink small data packets;
transmitting a radio resource control (RRC, radio Resource Control) connection resume request using the RA-SDT resource;
and receiving the downlink small data packet sent by the network equipment.
In addition, according to at least one embodiment of the present application, the receiving the downlink small data packet sent by the network device includes:
and receiving a downlink small data packet sent by the network equipment under the condition that the network equipment determines that the RA-SDT resource is configured by the terminal.
In addition, according to at least one embodiment of the present application, after receiving the downlink small data packet sent by the network device, the method further includes:
transmitting feedback information to the network device by utilizing the RA-SDT resource;
the feedback information is used for indicating whether the terminal of the network device receives the downlink small data packet.
In addition, according to at least one embodiment of the present application, the receiving the downlink small data packet sent by the network device includes:
and receiving a downlink small data packet sent by the network equipment under the condition that the network equipment determines that the terminal is configured with CG-SDT resources.
In addition, according to at least one embodiment of the present application, after receiving the downlink small data packet sent by the network device, the method further includes:
transmitting feedback information to the network device by utilizing the CG-SDT resource;
the feedback information is used for indicating whether the terminal of the network device receives the downlink small data packet.
In addition, according to at least one embodiment of the present application, the receiving the downlink small data packet sent by the network device includes:
and receiving a downlink small data packet sent by the network equipment under the condition that the network equipment determines that the terminal is configured with RA-SDT resources and CG-SDT resources.
In addition, according to at least one embodiment of the present application, after receiving the downlink small data packet sent by the network device, the method further includes:
preferentially utilizing the CG-SDT resource and sending feedback information to the network equipment;
the feedback information is used for indicating whether the terminal of the network device receives the downlink small data packet.
At least one embodiment of the present application provides a data transmission apparatus including:
and the processing unit is used for transmitting the downlink small data packet under the condition that the terminal is in an inactive state.
At least one embodiment of the present application provides a terminal including:
a communication interface is provided for the communication of the communication medium,
and the processor is used for transmitting the downlink small data packet under the condition that the terminal is in an inactive state.
At least one embodiment of the application provides a terminal comprising a processor and a memory for storing a computer program capable of running on the processor,
the processor is configured to execute the steps of any one of the methods on the terminal side when running the computer program.
At least one embodiment of the present application provides a storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of any of the methods described above.
The data transmission method, the device, the equipment and the storage medium provided by the embodiment of the application are used for transmitting the downlink small data packet under the condition that the terminal is in an inactive state. By adopting the technical scheme provided by the embodiment of the application, a downlink small data packet transmission mechanism is provided so as to ensure that a terminal in an inactive state supports downlink small data packet transmission.
Drawings
FIG. 1 is a schematic diagram of an implementation flow of a data transmission method according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a specific implementation flow of a data transmission method according to an embodiment of the present application;
FIG. 3 is a second flowchart of a specific implementation of the data transmission method according to the embodiment of the present application;
FIG. 4 is a flowchart illustrating a data transmission method according to an embodiment of the present application;
fig. 5 is a schematic diagram of a composition structure of a data transmission device according to an embodiment of the present application;
fig. 6 is a schematic diagram of the composition structure of a terminal according to an embodiment of the present application.
Detailed Description
Prior to introducing the technical solution of the embodiment of the present application, a description will be given of related technology.
In the related art, in uplink packet data transmission (SDT, small data transmission), a network side may configure RA-SDT access resources and CG-SDT CG resources for a terminal supporting uplink packet transmission.
In the related art, a core network or an access network may page a terminal when the terminal is in an RRC inactive state (inactive). The terminal in the RRC inactive state transmits an RRC resume request (resume request) to the network through a random access procedure using MSGA or msg 3. The network side feeds back RRC resume to the terminal, and the terminal enters an RRC connected state (connected) from an RRC inactive state and receives downlink data. For the case of a small number of downlink data packets, the terminal may enter the RRC connected procedure, which may result in a large delay overhead. In addition, after the terminal finishes the data transmission, the network side may instruct the terminal to enter the RRC inactive state because there is no uplink and downlink service for a long time, so as to save energy for the terminal.
In summary, in the first related art, for the downlink small data or the small data packet transmission triggered by the downlink information, the terminal needs to enter the RRC connected state from the RRC inactive state to perform the downlink data reception, that is, the terminal is in the inactive state and cannot perform the downlink data reception. Second, in the related art, for a terminal configured with uplink packet transmission, if packet transmission triggered by downlink data arrival is performed, it does not relate to how to combine with resources used for uplink packet transmission, that is, how to use resources configured for uplink packet transmission when performing downlink packet transmission for a terminal having both downlink packet transmission and uplink packet transmission configurations.
Based on this, in the embodiment of the present application, the terminal performs downlink small data packet transmission when the terminal is in an inactive state.
Fig. 1 is a schematic flow chart of an implementation of a data transmission method according to an embodiment of the present application, which is applied to a terminal, as shown in fig. 1, and the method includes step 101:
step 101: and under the condition that the terminal is in an inactive state, the terminal transmits downlink small data packets.
It can be understood that in the embodiment of the present application, the downlink packet data transmission is introduced when the terminal is in the inactive state.
In actual application, under the condition that a terminal is in an inactive state, the terminal supports downlink small packet data transmission, so when the network equipment indicates the terminal to transmit the downlink small packet, the terminal can send an RRC connection recovery request to the network equipment, thereby receiving the downlink small packet sent by the network equipment.
Based on this, in an embodiment, the transmitting, by the terminal, a downlink small data packet includes:
receiving indication information sent by network equipment; the indication information is used for indicating the terminal to transmit downlink small data packets;
utilizing RA-SDT resources to send RRC connection recovery requests;
and receiving the downlink small data packet sent by the network equipment.
It can be understood that, for a terminal having an uplink packet transmission configuration, if there is a packet transmission triggered by the downlink indication information, the terminal does not need to enter a connection state from an inactive state, that is, the terminal uses RA-SDT resources configured for uplink packet transmission in the inactive state to send an RRC connection recovery request to a network device, and the network device sends downlink data to the terminal, thereby completing downlink packet transmission.
In practical application, the network device may configure RA-SDT access resources for a terminal supporting uplink packet transmission, so, when the terminal is in an inactive state, the network device sends a downlink small data packet to the terminal, and after receiving the downlink small data packet, the terminal may send feedback information to the network device by using the pre-configured RA-SDT access resources, thereby saving resource configuration and improving reasonable utilization rate of resources.
Based on this, in an embodiment, the receiving the downlink small data packet sent by the network device includes:
and receiving a downlink small data packet sent by the network equipment under the condition that the network equipment determines that the terminal is configured with RA-SDT resources.
It can be understood that the network device receives an RRC connection restoration request sent by the terminal, where the RRC connection restoration request carries first information; the network device may determine whether the terminal has configured RA-SDT resources based on the first information.
That is, if the first information carried by the RRC connection restoration request indicates that the terminal has configured RA-SDT resources, the network device determines that the terminal has configured RA-SDT resources.
Here, after receiving the downlink small data packet sent by the network device, the method further includes:
transmitting feedback information to the network device by utilizing the RA-SDT resource;
the feedback information is used for indicating whether the terminal of the network device receives the downlink small data packet.
It can be understood that, for the terminal with the uplink packet transmission configuration, if the downlink packet transmission triggered by the arrival of the downlink data is performed, RA-SDT resources configured by the uplink packet transmission configuration can be used when the downlink packet transmission is performed, so that resource configuration is saved, and resource utilization rate is improved.
In practical application, the network device may configure CG-SDT access resources for a terminal supporting uplink packet transmission, so, when the terminal is in an inactive state, the network device sends a downlink small data packet to the terminal, and after receiving the downlink small data packet, the terminal may send feedback information to the network device by using the preconfigured CG-SDT access resources.
Based on this, in an embodiment, the receiving the downlink small data packet sent by the network device includes:
and receiving a downlink small data packet sent by the network equipment under the condition that the network equipment determines that the terminal is configured with CG-SDT resources.
It can be understood that the network device receives an RRC connection restoration request sent by the terminal, where the RRC connection restoration request carries first information; the network device may determine whether the terminal has configured CG-SDT resources according to the first information.
That is, if the first information carried by the RRC connection restoration request indicates that the terminal has configured CG-SDT resources, the network device determines that the terminal has configured CG-SDT resources.
Here, after receiving the downlink small data packet sent by the network device, the method further includes:
transmitting feedback information to the network device by utilizing the CG-SDT resource;
the feedback information is used for indicating whether the terminal of the network device receives the downlink small data packet.
It can be understood that, for the terminal with the uplink packet transmission configuration, if the downlink packet transmission triggered by the arrival of the downlink data is performed, CG-SDT resources of the uplink packet transmission configuration can be used when the downlink packet transmission is performed, so that resource configuration is saved, and resource utilization rate is improved.
In practical application, the network device may configure RA-SDT access resources and CG-SDT access resources for a terminal supporting uplink packet transmission, so, in the case that the terminal is in an inactive state, the network device sends a downlink small data packet to the terminal, and after receiving the downlink small data packet, the terminal may preferentially utilize the preconfigured CG-SDT access resources to send feedback information to the network device.
Based on this, in an embodiment, the receiving the downlink small data packet sent by the network device includes:
and receiving a downlink small data packet sent by the network equipment under the condition that the network equipment determines that the terminal is configured with RA-SDT resources and CG-SDT resources.
It can be understood that the network device receives an RRC connection restoration request sent by the terminal, where the RRC connection restoration request carries first information; the network device may determine whether the terminal has configured RA-SDT resources and CG-SDT resources based on the first information.
That is, if the first information carried by the RRC connection restoration request indicates that the terminal has configured RA-SDT resources and CG-SDT resources, the network device determines that the terminal has configured RA-SDT resources and CG-SDT resources.
Here, after receiving the downlink small data packet sent by the network device, the method further includes:
preferentially utilizing the CG-SDT resource and sending feedback information to the network equipment;
the feedback information is used for indicating whether the terminal of the network device receives the downlink small data packet.
It can be appreciated that, compared to RA-SDT resources, CG-SDT resources are dedicated resources for a terminal, and are not shared by a plurality of terminals, the network device can identify a terminal that transmits feedback information, and thus, feedback information can be transmitted to the network device by preferentially using preconfigured CG-SDT resources. In addition, because the uplink resource block corresponding to the CG-SDT resource can be configured larger, the terminal can send the feedback information by using the CG-SDT resource and simultaneously send the uplink data by using the CG-SDT resource, so that the terminal can send the feedback information to the network device by preferentially using the preconfigured CG-SDT resource.
In other words, if the terminal has configured RA-SDT resources and CG-SDT resources, in the case that the terminal needs to send uplink data in addition to downlink data, the terminal may preferentially use the CG-SDT resources to send feedback information and uplink data to the network device; and under the condition that the terminal does not need to send uplink data, the terminal can send feedback information to the network equipment by utilizing the RA-SDT resource.
The embodiment of the application has the following advantages:
(1) The downlink small data packet transmission mechanism is provided to ensure that a terminal in an inactive state supports downlink small data packet transmission.
(2) And the terminal in the inactive state supports downlink small data packet transmission, so that after receiving a downlink small data packet transmission instruction sent by the network, the terminal initiates random access and sends uplink feedback corresponding to the downlink data packet by using RA-SDT or CG-SDT. RA-SDT or CG-SDT is a resource for uplink packet transmission.
(3) The method and the device are used for solving the problem of transmission resource utilization of the terminal which is in the RRC inactive state and has the configuration of uplink small data packet transmission and the configuration of downlink small data packet transmission, namely, the dedicated uplink small data packet transmission resources configured by the terminal can be effectively utilized to carry out downlink small data packet transmission and feedback ACK/NACK, and the reasonable utilization of resources can be improved.
Fig. 2 is a schematic flow chart of a specific implementation of a data transmission method according to an embodiment of the present application, as shown in fig. 2, the method includes steps 201 to 205:
step 201: the network device instructs the terminal in the inactive state (RRC inactive) to perform downlink small packet transmission.
Here, the network device may send a Paging message (Paging) to the terminal; and Paging carries the indication information.
Here, the terminal supports downlink small data packet transmission. The terminal is configured with resource configuration of uplink small data packet transmission, namely RA-SDT.
Step 202: and the terminal sends an RRC connection recovery request to the network equipment.
Here, in 2-step random access, after receiving the indication information sent by the network device, the terminal initiates downlink packet transmission based on random access, that is, the terminal sends a random access code (preamble) and an Msg a Payload (PUSCH) corresponding to 2-step random access to the network device. The preamble may refer to a preamble resource corresponding to RA-SDT configured by the network device. The RRC message carried in PUSCH is RRC resume request message.
Here, the RRC message carried in PUSCH may further carry resumeeidensity (ShortI-RNTI-Value) and/or resumeMAC-I and/or resumeclase; wherein resume Identity is for UE context retrieve; resumeMAC-I for authentication; the resumecase is used to indicate that the resume is an RRC resume triggered by downlink packet data.
Here, in the 4-step random access, after receiving the indication information sent by the network device, the terminal initiates downlink packet transmission based on random access, that is, the terminal sends a random access code (preamble) and RRC resume request message of the corresponding 4-step random access to the network device.
Step 203: and under the condition that the network equipment determines that the terminal is configured with RA-SDT resources, the network equipment sends a downlink small data packet to the terminal.
Here, if the RRC connection restoration request carries first information, and if the first information indicates that the terminal has configured RA-SDT resources, the network device determines that the terminal has configured RA-SDT resources.
Here, in 2-step random access, the network device feeds back MsgB to the terminal; downstream small data packets are carried in the MsgB payload.
Here, in 4-step random access, the terminal transmits Msg1 to the network device; the Msg1 carries RRC resume, and the network equipment feeds back Msg2 to the terminal; and carrying the downlink small data packet in the Msg2 load. Or, the Msg3 carries RRC resume, and the Mag4 carries downlink small data packets.
Here, the network device may allocate resources for uplink ACK/NACK feedback to the terminal according to whether the terminal has configured CG-SDT resources.
Step 204: and the terminal receives the downlink small data packet sent by the network equipment.
Step 205: and the terminal sends the ACK/NACK to the network equipment by utilizing the pre-configured RA-SDT resource.
Here, ACK means that a downlink small packet is received; NACK indicates that no downstream small packet was received.
Here, in 2-step random access, RA-SDT resources used for feedback of ACK/NACK are PUSCH resources in MsgA.
In this example, the following advantages are provided:
(1) The downlink small data packet transmission mechanism is provided to ensure that a terminal in an inactive state supports downlink small data packet transmission.
(2) When the terminal is configured with the resource configuration of uplink small data packet transmission, namely RA-SDT, the terminal can effectively utilize the configured exclusive uplink small data packet transmission resource, namely RA-SDT, to perform downlink small data packet transmission and feed back ACK/NACK, and can improve the reasonable utilization of resources.
Fig. 3 is a schematic flow chart of a specific implementation of a data transmission method according to an embodiment of the present application, as shown in fig. 3, the method includes steps 301 to 305:
step 301: the network equipment sends indication information to a terminal in an inactive state (RRC inactive); the indication information is used for indicating the terminal to transmit the downlink small data packet.
Here, the network device may send Paging to the terminal; and Paging carries the indication information.
Here, the terminal supports downlink small data packet transmission. The terminal is configured with a resource configuration of uplink small data packet transmission, namely CG-SDT.
Step 302: and the terminal sends an RRC connection recovery request to the network equipment.
Here, in 2-step random access, after receiving the indication information sent by the network device, the terminal initiates downlink packet transmission based on random access, that is, the terminal sends a random access code (preamble) and an Msg a Payload (PUSCH) corresponding to 2-step random access to the network device. The preamble may refer to a preamble resource corresponding to RA-SDT configured by the network device. The RRC message carried in PUSCH is RRC resume request message.
Here, the RRC message carried in PUSCH may further carry resumeeidensity (ShortI-RNTI-Value) and/or resumeMAC-I and/or resumeclase; wherein resume Identity is for UE context retrieve; resumeMAC-I for authentication; the resumecase is used to indicate that the resume is an RRC resume triggered by downlink packet data.
Here, in the 4-step random access, after receiving the indication information sent by the network device, the terminal initiates downlink packet transmission based on random access, that is, the terminal sends a random access code (preamble) and RRC resume request message of the corresponding 4-step random access to the network device.
Step 303: and under the condition that the network equipment determines that the terminal is configured with CG-SDT resources, the network equipment sends a downlink small data packet to the terminal.
Here, the RRC connection recovery request carries first information; and if the first information indicates that the terminal is configured with CG-SDT resources, the network equipment determines that the terminal is configured with CG-SDT resources.
Here, in 2-step random access, the network device feeds back MsgB to the terminal; the MsgB carries downstream small packets.
Here, in 4-step random access, the terminal transmits Msg1 to the network device; the Msg1 carries RRC resume, and the network equipment feeds back Msg2 to the terminal; and carrying the downlink small data packet in the Msg2 load. Or, the Msg3 carries RRC resume, and the Mag4 carries downlink small data packets.
Here, the network device may allocate resources for uplink ACK/NACK feedback to the terminal according to whether the terminal has configured CG-SDT resources.
Step 304: and the terminal receives the downlink small data packet sent by the network equipment.
Step 305: and the terminal sends the ACK/NACK to the network equipment by utilizing the pre-configured CG-SDT resource.
Here, ACK means that a downlink small packet is received; NACK indicates that no downstream small packet was received.
In this example, the following advantages are provided:
(1) The downlink small data packet transmission mechanism is provided to ensure that a terminal in an inactive state supports downlink small data packet transmission.
(2) When the terminal is configured with the uplink small data packet transmission resource configuration, namely CG-SDT, the terminal can effectively utilize the configured exclusive uplink small data packet transmission resource, namely CG-SDT, to carry out downlink small data packet transmission and feedback ACK/NACK, and can improve the reasonable utilization of resources.
Fig. 4 is a schematic flow chart of a specific implementation of a data transmission method according to an embodiment of the present application, as shown in fig. 4, the method includes steps 401 to 405:
step 401: the network equipment sends indication information to a terminal in an inactive state (RRC inactive); the indication information is used for indicating the terminal to transmit the downlink small data packet.
Here, the network device may send Paging to the terminal; and Paging carries the indication information.
Here, the terminal supports downlink small data packet transmission. The terminal is simultaneously configured with resource configurations of uplink small data packet transmission, namely RA-SDT and CG-SDT.
Step 402: and the terminal sends an RRC connection recovery request to the network equipment.
Here, in 2-step random access, after receiving the indication information sent by the network device, the terminal initiates downlink packet transmission based on random access, that is, the terminal sends a random access code (preamble) and an Msg a Payload (PUSCH) corresponding to 2-step random access to the network device. The preamble may refer to a preamble resource corresponding to RA-SDT configured by the network device. The RRC message carried in PUSCH is RRC resume request message.
Here, the RRC message carried in PUSCH may further carry resumeeidensity (ShortI-RNTI-Value) and/or resumeMAC-I and/or resumeclase; wherein resume Identity is for UE context retrieve; resumeMAC-I for authentication; the resumecase is used to indicate that the resume is an RRC resume triggered by downlink packet data.
Here, in the 4-step random access, after receiving the indication information sent by the network device, the terminal initiates downlink packet transmission based on random access, that is, the terminal sends a random access code (preamble) and RRC resume request message of the corresponding 4-step random access to the network device.
Step 403: and under the condition that the network equipment determines that the terminal is configured with RA-SDT resources and CG-SDT resources, the network equipment sends a downlink small data packet to the terminal.
Here, the RRC connection recovery request carries first information; if the first information indicates that the terminal has configured RA-SDT resources and CG-SDT resources, the network device determines that the terminal has configured RA-SDT resources and CG-SDT resources.
Here, in 2-step random access, the network device feeds back MsgB to the terminal; the MsgB carries downstream small packets.
Here, in 4-step random access, the terminal transmits Msg1 to the network device; the Msg1 carries RRC resume, and the network equipment feeds back Msg2 to the terminal; and carrying the downlink small data packet in the Msg2 load. Or, the Msg3 carries RRC resume, and the Mag4 carries downlink small data packets.
Here, the network device may allocate resources for uplink ACK/NACK feedback to the terminal according to whether the terminal has configured CG-SDT resources.
Step 404: and the terminal receives the downlink small data packet sent by the network equipment.
Step 405: and the terminal preferentially utilizes the pre-configured CG-SDT resource to send ACK/NACK to the network equipment.
Here, after receiving the downlink small data packet sent by the network device, the terminal may preferably use configured grant resources in CG-SDT to feed back ACK/NACK and the uplink small data packet.
Here, ACK means that a downlink small packet is received; NACK indicates that no downstream small packet was received.
In this example, the following advantages are provided:
(1) The downlink small data packet transmission mechanism is provided to ensure that a terminal in an inactive state supports downlink small data packet transmission.
(2) When the terminal is simultaneously configured with the resource configuration of uplink small data packet transmission, namely RA-SDT and CG-SDT, the terminal can feed back ACK/NACK and transmit the uplink small data packet by preferentially utilizing the configured exclusive uplink small data packet transmission resource, namely CG-SDT, so that the reasonable utilization of resources can be improved.
In order to realize the data transmission method of the embodiment of the application, the embodiment of the application also provides a data transmission device. Fig. 5 is a schematic diagram of a composition structure of a data transmission device according to an embodiment of the present application, as shown in fig. 5, where the device includes:
and the processing unit 51 is configured to perform downlink small data packet transmission by the terminal when the terminal is in an inactive state.
In one embodiment, the processing unit 51 is specifically configured to:
receiving indication information sent by network equipment; the indication information is used for indicating the terminal to transmit downlink small data packets;
utilizing RA-SDT resources to send RRC connection recovery requests;
and receiving the downlink small data packet sent by the network equipment.
In one embodiment, the processing unit 51 is specifically configured to:
and receiving a downlink small data packet sent by the network equipment under the condition that the network equipment determines that the RA-SDT resource is configured by the terminal.
In an embodiment, the device is further configured to:
transmitting feedback information to the network device by utilizing the RA-SDT resource;
the feedback information is used for indicating whether the terminal of the network device receives the downlink small data packet.
In one embodiment, the processing unit 51 is specifically configured to:
and receiving a downlink small data packet sent by the network equipment under the condition that the network equipment determines that the terminal is configured with CG-SDT resources.
In an embodiment, the device is further configured to:
transmitting feedback information to the network device by utilizing the CG-SDT resource;
the feedback information is used for indicating whether the terminal of the network device receives the downlink small data packet.
In one embodiment, the processing unit 51 is specifically configured to:
and receiving a downlink small data packet sent by the network equipment under the condition that the network equipment determines that the terminal is configured with RA-SDT resources and CG-SDT resources.
In an embodiment, the device is further configured to:
preferentially utilizing the CG-SDT resource and sending feedback information to the network equipment;
the feedback information is used for indicating whether the terminal of the network device receives the downlink small data packet.
In practice, the processing unit 51 may be implemented by a processor in the data transmission device.
It should be noted that: in the data transmission device provided in the above embodiment, only the division of each program module is used for illustration, and in practical application, the processing allocation may be performed by different program modules according to needs, that is, the internal structure of the device is divided into different program modules, so as to complete all or part of the processing described above. 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 application also provides a terminal, as shown in fig. 6, including:
a communication interface 61 capable of information interaction with other devices;
and a processor 62, connected to the communication interface 61, for executing the method provided by one or more of the above-mentioned terminal side technical solutions when running the computer program. And the computer program is stored on the memory 63.
The processor 62, when running a computer program, performs: and under the condition that the terminal is in an inactive state, the terminal transmits downlink small data packets.
In one embodiment, the processor 62 is configured to perform:
receiving indication information sent by network equipment; the indication information is used for indicating the terminal to transmit downlink small data packets;
transmitting a Radio Resource Control (RRC) connection recovery request by utilizing the RA-SDT resource;
and receiving the downlink small data packet sent by the network equipment.
In one embodiment, the processor 62 is configured to perform:
and receiving a downlink small data packet sent by the network equipment under the condition that the network equipment determines that the RA-SDT resource is configured by the terminal.
In an embodiment, the communication interface 61 is configured to perform:
transmitting feedback information to the network device by utilizing the RA-SDT resource;
the feedback information is used for indicating whether the terminal of the network device receives the downlink small data packet.
In one embodiment, the processor 62 is configured to perform:
and receiving a downlink small data packet sent by the network equipment under the condition that the network equipment determines that the terminal is configured with CG-SDT resources.
In an embodiment, the communication interface 61 is configured to perform:
transmitting feedback information to the network device by utilizing the CG-SDT resource;
the feedback information is used for indicating whether the terminal of the network device receives the downlink small data packet.
In one embodiment, the processor 62 is configured to perform:
and receiving a downlink small data packet sent by the network equipment under the condition that the network equipment determines that the terminal is configured with RA-SDT resources and CG-SDT resources.
In an embodiment, the communication interface 61 is configured to perform:
preferentially utilizing the CG-SDT resource and sending feedback information to the network equipment;
the feedback information is used for indicating whether the terminal of the network device receives the downlink small data packet.
It should be noted that: the specific processing procedures of the processor 62 and the communication interface 61 are detailed in the method embodiment, and are not described herein.
Of course, in actual practice, the various components in terminal 60 are coupled together by bus system 64. It is understood that the bus system 64 is used to enable connected communications between these components. The bus system 64 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 64 in fig. 6.
The memory 63 in the embodiment of the present application is used to store various types of data to support the operation of the terminal 60. Examples of such data include: any computer program for operation on the terminal 60.
The method disclosed in the above embodiment of the present application may be applied to the processor 62 or implemented by the processor 62. The processor 62 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 62. The processor 62 described above may be a general purpose processor, a digital data processor (DSP, digital Signal Processor), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The processor 62 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 embodiment of the application can be directly embodied in the hardware of the decoding processor or can be implemented by combining hardware and software modules in the decoding processor. The software modules may be located in a storage medium in a memory 63, said processor 62 reading information in the memory 63, in combination with its hardware performing the steps of the method as described above.
In an exemplary embodiment, the terminal 60 can 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 will be appreciated that the memory (memory 63) of embodiments of the 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 by embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.
In an exemplary embodiment, the present application also provides a storage medium, i.e., a computer storage medium, in particular a computer readable storage medium, for example, comprising a memory storing a computer program executable by the processor 62 of the terminal 60 to perform the steps of the terminal-side method described above. The computer readable storage medium may be FRAM, ROM, PROM, EPROM, EEPROM, flash Memory, magnetic surface Memory, optical disk, or CD-ROM.
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 addition, the embodiments of the present application may be arbitrarily combined without any collision.
The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the present application.
Claims (12)
1. A data transmission method, applied to a terminal, the method comprising:
and under the condition that the terminal is in an inactive state, the terminal transmits downlink small data packets.
2. The method of claim 1, wherein the transmitting, by the terminal, the downlink small data packet includes:
receiving indication information sent by network equipment; the indication information is used for indicating the terminal to transmit downlink small data packets;
transmitting a Radio Resource Control (RRC) connection recovery request by using an uplink small data packet (RA-SDT) resource based on random access;
and receiving the downlink small data packet sent by the network equipment.
3. The method according to claim 2, wherein the receiving the downlink small data packet sent by the network device includes:
and receiving a downlink small data packet sent by the network equipment under the condition that the network equipment determines that the RA-SDT resource is configured by the terminal.
4. The method of claim 3, wherein after receiving the downstream small data packet sent by the network device, the method further comprises:
transmitting feedback information to the network device by utilizing the RA-SDT resource;
the feedback information is used for indicating whether the terminal of the network device receives the downlink small data packet.
5. The method according to claim 2, wherein the receiving the downlink small data packet sent by the network device includes:
and receiving a downlink small data packet sent by the network equipment under the condition that the network equipment determines that the terminal is configured with a small data packet transmission CG-SDT resource based on an uplink authorized resource.
6. The method of claim 5, wherein after receiving the downstream small data packet sent by the network device, the method further comprises:
transmitting feedback information to the network device by utilizing the CG-SDT resource;
the feedback information is used for indicating whether the terminal of the network device receives the downlink small data packet.
7. The method according to claim 2, wherein the receiving the downlink small data packet sent by the network device includes:
and receiving a downlink small data packet sent by the network equipment under the condition that the network equipment determines that the terminal is configured with RA-SDT resources and CG-SDT resources.
8. The method of claim 7, wherein after receiving the downstream small data packet sent by the network device, the method further comprises:
preferentially utilizing the CG-SDT resource and sending feedback information to the network equipment;
the feedback information is used for indicating whether the terminal of the network device receives the downlink small data packet.
9. A data transmission apparatus, comprising:
and the processing unit is used for transmitting the downlink small data packet under the condition that the terminal is in an inactive state.
10. A terminal, comprising:
a communication interface is provided for the communication of the communication medium,
and the processor is used for transmitting the downlink small data packet under the condition that the terminal is in an inactive state.
11. A terminal comprising a processor and a memory for storing a computer program capable of running on the processor,
wherein the processor is adapted to perform the steps of the method of any of claims 1 to 8 when the computer program is run.
12. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210556840.0A CN117156585A (en) | 2022-05-19 | 2022-05-19 | Data transmission method, device, equipment and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210556840.0A CN117156585A (en) | 2022-05-19 | 2022-05-19 | Data transmission method, device, equipment and storage medium |
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| CN117156585A true CN117156585A (en) | 2023-12-01 |
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| CN202210556840.0A Pending CN117156585A (en) | 2022-05-19 | 2022-05-19 | Data transmission method, device, equipment and storage medium |
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| Country | Link |
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| CN (1) | CN117156585A (en) |
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