CN117015046A - Data transmission method, device and terminal - Google Patents

Data transmission method, device and terminal Download PDF

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Publication number
CN117015046A
CN117015046A CN202210440863.5A CN202210440863A CN117015046A CN 117015046 A CN117015046 A CN 117015046A CN 202210440863 A CN202210440863 A CN 202210440863A CN 117015046 A CN117015046 A CN 117015046A
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CN
China
Prior art keywords
data
data transmission
resources
random access
resource
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Pending
Application number
CN202210440863.5A
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Chinese (zh)
Inventor
黄学艳
刘亮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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Application filed by China Mobile Communications Group Co Ltd, China Mobile Communications Ltd Research Institute filed Critical China Mobile Communications Group Co Ltd
Priority to CN202210440863.5A priority Critical patent/CN117015046A/en
Priority to PCT/CN2023/090530 priority patent/WO2023207955A1/en
Publication of CN117015046A publication Critical patent/CN117015046A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/1263Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/1263Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1273Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention provides a data transmission method, a data transmission device and a terminal. The method comprises the following steps: under the condition that downlink data and uplink data arrive at the same time, the terminal determines a data transmission mode based on data transmission resources; transmitting the downlink data and the uplink data according to the data transmission mode; wherein the data transmission resources include: at least one of grant CG resources, semi-persistent scheduling SPS resources, and random access resources is configured. In the embodiment of the invention, under the condition that uplink data and downlink data arrive simultaneously, the terminal selects the adaptive data transmission mode to transmit the uplink data and the downlink data based on the currently configured data transmission resources including CG resources, SPS resources and random access resources, and performs joint processing on the uplink data transmission and the downlink data transmission, so that the data transmission delay of the terminal can be reduced, the signaling cost and the transmission resource cost of the data transmission can be reduced, and the transmission efficiency can be improved.

Description

Data transmission method, device and terminal
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a data transmission method, apparatus, and terminal.
Background
In the prior art, a terminal performs uplink data or uplink information reporting through a small data transmission based on random access or a small data transmission based on configuration authorization (Configured grant). Because the transmission of the uplink data and the transmission of the downlink data are relatively independent, the terminal may have uplink service arrival when the terminal has downlink data service; similarly, during uplink data transmission, the terminal is still in a radio resource control (Radio Resource Control, RRC) inactive state, and downlink data may arrive, so that after downlink transmission is introduced, the existing uplink data transmission mode is not applicable any more.
Disclosure of Invention
The invention aims to provide a data transmission method, a data transmission device and a terminal, which solve the problem that the existing data transmission method is not suitable for the condition that uplink data and downlink data arrive at the same time.
To achieve the above object, an embodiment of the present invention provides a data transmission method, including:
under the condition that downlink data and uplink data arrive at the same time, the terminal determines a data transmission mode based on data transmission resources;
transmitting the downlink data and the uplink data according to the data transmission mode;
wherein the data transmission resources include: at least one of grant CG resources, semi-persistent scheduling (Semi-Persistent Scheduling, SPS) resources, and random access resources is configured.
Optionally, the determining the data transmission mode based on the data transmission resource includes:
and determining the data transmission mode according to the data transmission resources meeting the preset conditions and/or the data transmission resources indicated by the network side equipment.
Optionally, the data transmission resource is indicated by a paging message.
Optionally, the data transmission mode includes:
mode one: uplink data is transmitted by using CG resources, and downlink data is received by using SPS resources;
Mode two: uplink data is transmitted by using CG resources, and downlink data is received by using random access resources;
mode three: the SPS resource is used for receiving downlink data, and the random access resource is used for transmitting uplink data;
mode four: and transmitting the uplink data and the downlink data by using the random access resource.
Optionally, the determining the data transmission mode based on the data transmission resource includes at least one of:
if the CG resource and the SPS resource both meet the preset condition, determining that the data transmission mode is mode one;
if the CG resource and the random access resource both meet the preset condition, determining that the data transmission mode is a mode two;
if the CG resource meets a preset condition and the network side equipment indicates to use a random access resource to receive the downlink data, determining that the data transmission mode is a mode two;
if the SPS resource meets a preset condition, and the CG resource does not meet the preset condition, determining that the data transmission mode is a mode III;
if the network side equipment indicates to use SPS resources to receive the downlink data and the CG resources do not meet preset conditions, determining that the data transmission mode is a mode III;
And if the CG resource and the SPS resource do not meet the preset condition, determining that the data transmission mode is a mode four.
Optionally, the preset condition includes at least one of:
the network side equipment configures the data transmission resource for the terminal;
the data transmission resources are available;
the data transmission resource can bear data volume larger than the data volume of the data packet to be transmitted;
and the efficiency of the data transmission resource for data transmission reaches a first threshold value.
Optionally, in the case that the data transmission mode is mode two, the transmitting the downlink data and the uplink data according to the data transmission mode includes:
transmitting uplink data in the CG resource, wherein the uplink data carries an RRC recovery request message, and the RRC recovery request message is used for indicating the transmission requirement of the terminal for transmitting the uplink data and the downlink data;
determining a cell radio network temporary identifier C-RNTI based on a random access procedure;
and receiving the downlink data in a downlink receiving window based on the C-RNTI.
Optionally, in the case that the data transmission mode is mode three, the transmitting the downlink data and the uplink data according to the data transmission mode includes:
Receiving downlink data at the SPS resource;
transmitting the uplink data by using a first random access resource in the random access resources under the condition that the first random access resource meets the preset condition;
and under the condition that a first random access resource in the random access resources does not meet the preset condition, transmitting the uplink data or a Buffer Status Report (BSR) in a Physical Uplink Shared Channel (PUSCH) indicated by Downlink Control Information (DCI) corresponding to the SPS resources, wherein the BSR is used for indicating the data quantity of the uplink data.
Optionally, in the case that the data transmission mode is mode four, the transmitting the downlink data and the uplink data according to the data transmission mode includes:
acquiring a general random access parameter configured by network side equipment, wherein the general random access parameter comprises random access resources;
transmitting the uplink data and the downlink data by using the random access resource indicated by the universal random access parameter;
the general random access parameter is configured by the network side equipment aiming at the condition that the uplink data and the downlink data arrive at the same time.
Optionally, in the case that the data transmission mode is mode four, the transmitting the downlink data and the uplink data according to the data transmission mode includes:
initiating a random access flow;
transmitting the uplink data and/or the downlink data by using the random access resource in the execution process of the random access flow;
and carrying an RRC recovery request message in a first message of the random access procedure, wherein the RRC recovery request message comprises a first parameter, and the first parameter is used for indicating that the uplink data and the downlink data arrive at the same time.
To achieve the above object, an embodiment of the present invention provides a data transmission device, including:
the first determining module is used for determining a data transmission mode based on data transmission resources under the condition that downlink data and uplink data arrive at the same time;
the first transmission module is used for transmitting the downlink data and the uplink data according to the data transmission mode;
wherein the data transmission resources include: at least one of grant CG resources, semi-persistent scheduling SPS resources, and random access resources is configured.
Optionally, the first determining module is specifically configured to:
And determining the data transmission mode according to the data transmission resources meeting the preset conditions and/or the data transmission resources indicated by the network side equipment.
Optionally, the data transmission resource is indicated by a paging message.
Optionally, the data transmission mode includes:
mode one: uplink data is transmitted by using CG resources, and downlink data is received by using SPS resources;
mode two: uplink data is transmitted by using CG resources, and downlink data is received by using random access resources;
mode three: the SPS resource is used for receiving downlink data, and the random access resource is used for transmitting uplink data;
mode four: and transmitting the uplink data and the downlink data by using the random access resource.
Optionally, the first determining module is configured to perform at least one of the following operations:
if the CG resource and the SPS resource both meet the preset condition, determining that the data transmission mode is mode one;
if the CG resource and the random access resource both meet the preset condition, determining that the data transmission mode is a mode two;
if the CG resource meets a preset condition and the network side equipment indicates to use a random access resource to receive the downlink data, determining that the data transmission mode is a mode two;
If the SPS resource meets a preset condition, and the CG resource does not meet the preset condition, determining that the data transmission mode is a mode III;
if the network side equipment indicates to use SPS resources to receive the downlink data and the CG resources do not meet preset conditions, determining that the data transmission mode is a mode III;
and if the CG resource and the SPS resource do not meet the preset condition, determining that the data transmission mode is a mode four.
Optionally, the preset condition includes at least one of:
the network side equipment configures the data transmission resource for the terminal;
the data transmission resources are available;
the data transmission resource can bear data volume larger than the data volume of the data packet to be transmitted;
and the efficiency of the data transmission resource for data transmission reaches a first threshold value.
Optionally, in the case that the data transmission mode is mode two, the first transmission module is specifically configured to:
transmitting uplink data in the CG resource, wherein the uplink data carries an RRC recovery request message, and the RRC recovery request message is used for indicating the transmission requirement of the terminal for transmitting the uplink data and the downlink data;
Determining a Cell radio network temporary identity (Cell-Radio Network Temporary Identifier, C-RNTI) based on the random access procedure;
and receiving the downlink data in a downlink receiving window based on the C-RNTI.
Optionally, in the case that the data transmission mode is mode three, the first transmission module is specifically configured to:
receiving downlink data at the SPS resource;
transmitting the uplink data by using a first random access resource in the random access resources under the condition that the first random access resource meets the preset condition;
and transmitting the uplink data or a buffer status report (Buffer Status Report, BSR) in a physical uplink shared channel PUSCH indicated by downlink control information (Downlink Control Information, DCI) corresponding to the SPS resource, where the first random access resource of the random access resources does not meet the preset condition, and the BSR is used to indicate a data amount of the uplink data.
Optionally, in the case that the data transmission mode is mode four, the first transmission module is specifically configured to:
acquiring a general random access parameter configured by network side equipment, wherein the general random access parameter comprises random access resources;
Transmitting the uplink data and the downlink data by using the random access resource indicated by the universal random access parameter;
the general random access parameter is configured by the network side equipment aiming at the condition that the uplink data and the downlink data arrive at the same time.
Optionally, in the case that the data transmission mode is mode four, the first transmission module is specifically configured to:
initiating a random access flow;
transmitting the uplink data and/or the downlink data by using the random access resource in the execution process of the random access flow;
and carrying an RRC recovery request message in a first message of the random access procedure, wherein the RRC recovery request message comprises a first parameter, and the first parameter is used for indicating that the uplink data and the downlink data arrive at the same time.
To achieve the above object, an embodiment of the present invention provides a terminal including: a transceiver and a processor;
the processor is configured to: under the condition that downlink data and uplink data arrive at the same time, determining a data transmission mode based on data transmission resources;
the transceiver is used for: transmitting the downlink data and the uplink data according to the data transmission mode;
Wherein the data transmission resources include: at least one of grant CG resources, semi-persistent scheduling SPS resources, and random access resources is configured.
Optionally, the processor determines the data transmission mode based on the data transmission resource, including:
and determining the data transmission mode according to the data transmission resources meeting the preset conditions and/or the data transmission resources indicated by the network side equipment.
Optionally, the data transmission resource is indicated by a paging message.
Optionally, the data transmission mode includes:
mode one: uplink data is transmitted by using CG resources, and downlink data is received by using SPS resources;
mode two: uplink data is transmitted by using CG resources, and downlink data is received by using random access resources;
mode three: the SPS resource is used for receiving downlink data, and the random access resource is used for transmitting uplink data;
mode four: and transmitting the uplink data and the downlink data by using the random access resource.
Optionally, the processor determines the data transmission mode based on the data transmission resource, including at least one of:
if the CG resource and the SPS resource both meet the preset condition, determining that the data transmission mode is mode one;
If the CG resource and the random access resource both meet the preset condition, determining that the data transmission mode is a mode two;
if the CG resource meets a preset condition and the network side equipment indicates to use a random access resource to receive the downlink data, determining that the data transmission mode is a mode two;
if the SPS resource meets a preset condition, and the CG resource does not meet the preset condition, determining that the data transmission mode is a mode III;
if the network side equipment indicates to use SPS resources to receive the downlink data and the CG resources do not meet preset conditions, determining that the data transmission mode is a mode III;
and if the CG resource and the SPS resource do not meet the preset condition, determining that the data transmission mode is a mode four.
Optionally, the preset condition includes at least one of:
the network side equipment configures the data transmission resource for the terminal;
the data transmission resources are available;
the data transmission resource can bear data volume larger than the data volume of the data packet to be transmitted;
and the efficiency of the data transmission resource for data transmission reaches a first threshold value.
Optionally, in the case that the data transmission mode is mode two, the transceiver transmits the downlink data and the uplink data according to the data transmission mode, including:
Transmitting uplink data in the CG resource, wherein the uplink data carries an RRC recovery request message, and the RRC recovery request message is used for indicating the transmission requirement of the terminal for transmitting the uplink data and the downlink data;
determining a cell radio network temporary identifier C-RNTI based on a random access procedure;
and receiving the downlink data in a downlink receiving window based on the C-RNTI.
Optionally, in the case that the data transmission mode is mode three, the transceiver transmits the downlink data and the uplink data according to the data transmission mode, including:
receiving downlink data at the SPS resource;
transmitting the uplink data by using a first random access resource in the random access resources under the condition that the first random access resource meets the preset condition;
and under the condition that a first random access resource in the random access resources does not meet the preset condition, transmitting the uplink data or a Buffer Status Report (BSR) in a Physical Uplink Shared Channel (PUSCH) indicated by Downlink Control Information (DCI) corresponding to the SPS resources, wherein the BSR is used for indicating the data quantity of the uplink data.
Optionally, in the case that the data transmission mode is mode four, the transceiver transmits the downlink data and the uplink data according to the data transmission mode, including:
Acquiring a general random access parameter configured by network side equipment, wherein the general random access parameter comprises random access resources;
transmitting the uplink data and the downlink data by using the random access resource indicated by the universal random access parameter;
the general random access parameter is configured by the network side equipment aiming at the condition that the uplink data and the downlink data arrive at the same time.
Optionally, in the case that the data transmission mode is mode four, the transceiver transmits the downlink data and the uplink data according to the data transmission mode, including:
initiating a random access flow;
transmitting the uplink data and/or the downlink data by using the random access resource in the execution process of the random access flow;
and carrying an RRC recovery request message in a first message of the random access procedure, wherein the RRC recovery request message comprises a first parameter, and the first parameter is used for indicating that the uplink data and the downlink data arrive at the same time.
To achieve the above object, an embodiment of the present invention provides a terminal including: a transceiver, a processor, a memory, and a program or instructions stored on the memory and executable on the processor; the method is characterized in that the processor realizes the data transmission method when executing the program or the instructions.
To achieve the above object, an embodiment of the present application provides a readable storage medium having stored thereon a program or instructions which when executed by a processor implement the steps of the data transmission method described above.
The technical scheme of the application has the following beneficial effects:
in the embodiment of the application, under the condition that uplink data and downlink data arrive simultaneously, the terminal selects the adaptive data transmission mode to transmit the uplink data and the downlink data based on the currently configured data transmission resources including CG resources, SPS resources and random access resources, and performs joint processing on the uplink data transmission and the downlink data transmission, so that the data transmission delay of the terminal can be reduced, the signaling cost and the transmission resource cost of the data transmission can be reduced, and the transmission efficiency can be improved.
Drawings
Fig. 1 is a schematic flow chart of a data transmission method according to an embodiment of the application;
fig. 2 is a schematic diagram of a downlink data transmission process according to an embodiment of the present application;
fig. 3 is a second schematic diagram of a downlink data transmission process according to an embodiment of the present application;
FIG. 4 is a second flow chart of a data transmission method according to an embodiment of the application;
fig. 5 is a schematic structural diagram of a data transmission device according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a terminal according to an embodiment of the present application.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In various embodiments of the present application, it should be understood that the sequence numbers of the following processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.
In addition, the terms "system" and "network" are often used interchangeably herein.
In the embodiments provided herein, it should be understood that "B corresponding to a" means that B is associated with a from which B may be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may also determine B from a and/or other information.
As shown in fig. 1, an embodiment of the present invention provides a data transmission method, including:
and step 101, under the condition that downlink data and uplink data arrive at the same time, the terminal determines a data transmission mode based on the data transmission resource. Wherein the data transmission resources include: at least one of grant CG resources, semi-persistent scheduling SPS resources, and random access resources is configured.
The simultaneous arrival of the downlink data and the uplink data may refer to: the downlink data and the uplink data arrive at the same time; or when receiving the indication information of the arrival of the downlink data, the terminal does not respond to the indication information of the arrival of the downlink data yet, and the terminal receives the indication information of the arrival of the uplink data; or when receiving the indication information of the arrival of the uplink data, the terminal does not respond to the indication information of the arrival of the uplink data yet, and receives the indication information of the arrival of the downlink data.
The uplink data may refer to an uplink data packet, and the downlink data may refer to a downlink data packet.
For example: the terminal receives a paging message sent by the network side device, the paging message indicates that downlink data arrives, and before the terminal responds to the paging message (for example, the terminal sends an uplink preamble (preamble), or the terminal sends an MsgA, or a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH)), uplink data arrives, the downlink data and the uplink data can be considered to arrive simultaneously. As shown in fig. 2, in the downlink data transmission process based on Random Access (RA), when a terminal receives a paging message, there is an uplink data arrival condition; as shown in fig. 3, in the SPS-based downlink data transmission process, when the terminal receives the paging message, there is an uplink data arrival.
Optionally, the terminal is in an RRC inactive state, as shown in fig. 2, after receiving the paging message, the terminal in the RRC inactive state has uplink data (UL data) arrived before performing the RA procedure, and performs data transmission between the terminal and the base station (gNB) based on the RA procedure. Wherein the terminal transmits an RRC resume message (RRC resume message) during RA; the base station transmits downlink data (DL data; the terminal transmits uplink data or transmits bsr) to the terminal, as shown in fig. 3, after receiving the paging message, the terminal in RRC inactive state has UL data arrived before receiving the downlink data, and then the terminal receives DL data transmitted by the base station based on SPS, and the terminal transmits UL data.
It should be noted that, in the embodiment of the present application, the uplink data and the downlink data may be packet data (Small Data Transmission, SDT).
The data transmission resources include: at least one of grant CG resources, semi-persistent scheduling SPS resources, and random access resources is configured. The network side equipment can configure various transmission resources for the terminal, and the terminal determines the data transmission modes of the uplink data and the downlink data based on the currently configured data transmission resources. The data transmission mode may indicate transmission resources used for transmitting the uplink data and the downlink data.
102, transmitting the downlink data and the uplink data according to the data transmission mode;
in this embodiment, the data transmission mode is determined according to the data transmission resource, so that the data transmission mode is matched with the scenario where the current uplink and downlink data arrive at the same time and the current transmission resource allocation situation.
Optionally, taking the case that both uplink and downlink data in the embodiment of the present application are packet data, if the RRC inactive terminal receives a paging indication that a downlink packet arrives, and the uplink data meets that the size of the packet is smaller than a configuration threshold (i.e., the uplink data is also packet data), the terminal does not independently execute uplink and downlink packet data transmission. For uplink data transmission and downlink data transmission, the terminal can inform the network side device of data transmission requirements or establish a transmission channel with the network side device through an RRC resume message, so that joint processing of uplink and downlink small packet data is realized, judgment conditions for reducing transmission resources can be reduced, and transmission efficiency is improved through uplink and downlink data parallel processing.
In the embodiment of the application, under the condition that uplink data and downlink data arrive simultaneously, the terminal selects the adaptive data transmission mode to transmit the uplink data and the downlink data based on the currently configured data transmission resources including CG resources, SPS resources and random access resources, and performs joint processing on the uplink data transmission and the downlink data transmission, so that the data transmission delay of the terminal can be reduced, the signaling cost and the transmission resource cost of the data transmission can be reduced, and the transmission efficiency can be improved.
As an alternative embodiment, the determining the data transmission mode based on the data transmission resource includes:
and determining the data transmission mode according to the data transmission resources meeting the preset conditions and/or the data transmission resources indicated by the network side equipment.
Optionally, the preset condition includes at least one of:
1) The network side equipment configures the data transmission resource for the terminal;
2) The data transmission resources are available; the data transmission resources available may include: the data transmission resource is legal, the data transmission resource can support packet data transmission, the data transmission resource is effective, and the like.
3) The data transmission resource can bear data volume larger than the data volume of the data packet to be transmitted; if the data transmission resource is smaller in data amount and cannot bear the data packet to be transmitted, a BSR (buffer status report) can be sent on the data transmission resource to indicate the size of the data to be transmitted.
4) The efficiency of the data transmission resource for data transmission reaches a first threshold, and if the efficiency of the terminal for transmitting data by using the data transmission resource is low, the terminal can select to be unused even if the data transmission resource is configured.
In this embodiment, the terminal may determine, based on whether the data transmission resource meets the preset condition, a transmission resource used for uplink and downlink transmission, for example: the network side equipment configures CG resources, and when the CG resources are available, the terminal uses the CG resources to carry out uplink data transmission; and when the SPS resource is configured by the network side equipment and is legally available and the SPS resource is enough to bear downlink data, the downlink data is received by using the SPS resource.
Optionally, the data transmission resource is indicated by a paging message. The network side equipment indicates the data transmission resources used for transmitting the downlink data and/or the uplink data through paging information.
In this embodiment, when the network side device sends a paging message to the terminal, the paging message indicates a transmission resource for transmitting uplink and downlink data. For example: in the paging message, the network side equipment instructs a terminal to receive downlink data based on a random access mode; or in the paging message, the network side equipment instructs the terminal to perform downlink data reception in a mode based on SPS.
It should be noted that, the network side device may also instruct the terminal to transmit the downlink data and/or the data transmission resources used by the uplink data by sending an indication signaling with other information or separately.
Optionally, the data transmission mode includes:
mode one: uplink data is transmitted by using CG resources, and downlink data is received by using SPS resources;
mode two: uplink data is transmitted by using CG resources, and downlink data is received by using random access resources;
mode three: the SPS resource is used for receiving downlink data, and the random access resource is used for transmitting uplink data;
mode four: and transmitting the uplink data and the downlink data by using the random access resource.
Taking the uplink data and the downlink data as packet data as examples, the data transmission modes are shown in table 1:
table 1: data transmission Mode (Mode)
DL\UL RA-SDT CG-SDT
RA-SDT Mode4 Mode2
SPS-SDT Mode3 Mode1
As can be seen from the above table 1, under Mode1, the terminal performs uplink data transmission based on CG-SDT resources and performs downlink data transmission based on SPS-SDT resources; under Mode2, the terminal carries out uplink data transmission based on CG-SDT resources and carries out downlink data transmission based on RA-SDT resources; under Mode3, the terminal performs uplink data transmission based on the RA-SDT resource and performs downlink data transmission based on the SPS-SDT resource; and under Mode4, the terminal performs uplink data transmission and downlink data transmission based on the RA-SDT resource.
As an optional embodiment, the determining a data transmission mode based on the data transmission resource includes at least one of:
(1) If the CG resource and the SPS resource both meet the preset condition, determining that the data transmission mode is mode one;
in this embodiment, taking the case that both uplink and downlink data are packet data, uplink transmission meets CG-SDT conditions, and downlink transmission meets SPS-SDT conditions, that is, CG resources and SPS resources meet preset conditions for transmitting packet data, a terminal uses a first mode to perform data transmission, where the first mode is: uplink data is transmitted by using CG-SDT resources; downlink data is received using SPS-SDT resources.
(2) And if the CG resource and the random access resource meet the preset condition, determining that the data transmission mode is a mode two.
In this embodiment, if the CG resource meets the preset condition, uplink data transmission is performed by using the CG resource, if the SPS resource does not meet the preset condition, the terminal may determine whether the random access resource meets the preset condition if the terminal receives a paging message indicating that downlink data arrives, and if the random access resource meets the preset condition, downlink data reception is performed based on a random access manner.
(3) And if the CG resource meets the preset condition and the network side equipment indicates to use a random access resource to receive the downlink data, determining that the data transmission mode is a mode two.
In this embodiment, if the CG resource meets a preset condition, uplink data transmission is performed using the CG resource, the SPS resource does not meet the preset condition, the terminal receives a paging message to indicate that downlink data arrives, and the network side device instructs the terminal to perform downlink data reception by using a random access manner through the paging message, where the terminal performs downlink data reception based on the random access manner.
(4) And if the SPS resource meets the preset condition and the CG resource does not meet the preset condition, determining that the data transmission mode is a mode III.
In this embodiment, the terminal receives a paging message, where the paging message indicates that downlink data arrives, and then the terminal may determine whether the SPS resource meets a preset condition, and if the SPS resource meets the preset condition, no downlink data reception is performed based on the SPS large mode. And if the terminal judges that the CG resource cannot be used for uplink data reception, the terminal needs to carry out uplink data transmission based on a random access mode.
(5) And if the network side equipment indicates that the SPS resource is used for receiving the downlink data and the CG resource does not meet the preset condition, determining that the data transmission mode is a mode III.
In this embodiment, the terminal receives a paging message, where the paging message indicates that downlink data arrives, and the network side device instructs, through the paging message, the terminal to perform downlink data reception using an SPS-based manner. And if the terminal judges that the CG resource cannot be used for uplink data reception, the terminal needs to carry out uplink data transmission based on a random access mode.
(6) And if the CG resource and the SPS resource do not meet the preset condition, determining that the data transmission mode is a mode four.
In this embodiment, if the CG resource and the SPS resource do not meet the preset conditions, that is, the CG resource and the SPS resource are not available, the terminal performs uplink data transmission based on a random access procedure, and receives downlink data.
The following describes the data transmission procedure for the above-described different data transmission modes, respectively.
Optionally, in the case that the data transmission mode is mode two, the transmitting the downlink data and the uplink data according to the data transmission mode includes:
transmitting uplink data in the CG resource, wherein the uplink data carries an RRC recovery request message, and the RRC recovery request message is used for indicating the transmission requirement of the terminal for transmitting the uplink data and the downlink data;
Determining a cell radio network temporary identifier C-RNTI based on a random access procedure;
and receiving the downlink data in a downlink receiving window based on the C-RNTI.
Taking the uplink data and the downlink data as small packet data as examples, if the terminal meets the CG-SDT condition and the terminal receives the paging indication that the downlink data arrives, the terminal judges that a random access-based mode is used for downlink data reception; or the network instructs the terminal to use a random access based mode to receive downlink data;
specifically, the terminal transmits uplink data on CG-SDT resources, wherein RRC resume request messages are carried;
if the terminal does not send msg1 or MsgA in the random access flow, the terminal terminates the RA-DL-SDT initialization flow;
after the terminal uses CG-SDT resources to send uplink data, a downlink receiving window is opened, and C-RNTI is used for monitoring (monitoring) the downlink data;
and after the network side equipment receives the data of the CG-SDT resource, sending downlink data.
Optionally, in the case that the data transmission mode is mode three, the transmitting the downlink data and the uplink data according to the data transmission mode includes:
receiving downlink data at the SPS resource;
Transmitting the uplink data by using a first random access resource in the random access resources under the condition that the first random access resource meets the preset condition;
and under the condition that a first random access resource in the random access resources does not meet the preset condition, transmitting the uplink data or a Buffer Status Report (BSR) in a Physical Uplink Shared Channel (PUSCH) indicated by Downlink Control Information (DCI) corresponding to the SPS resources, wherein the BSR is used for indicating the data quantity of the uplink data.
In this embodiment, taking uplink data and downlink data as packet data as examples, the terminal receives a paging indication that downlink data arrives, and the terminal determines to use an SPS-based manner to receive downlink data; or the network side equipment instructs the terminal to receive downlink data in an SPS-based mode; and the terminal judges that CG resources cannot be used, then:
the terminal receives downlink data by using SPS resources;
the terminal judges whether legal 2step RA-UL-SDT resources exist; if yes, the terminal initiates an uplink packet transmission flow; if there is no 2step RA-UL-SDT resource, after the terminal starts to receive the downlink data, it transmits uplink data or sends BSR in PUSCH indicated by DCI corresponding to a physical downlink control channel (Physical downlink control channel, PDCCH), where the DCI is scheduling DCI corresponding to the SPS resource.
If the PUSCH indicated by the PDCCH (DCI) can carry uplink data, the uplink data is directly transmitted on the PUSCH; and if the PUSCH is insufficient to bear the uplink data, transmitting a BSR on the PUSCH to indicate the size of the uplink data to be transmitted.
Optionally, in the case that the data transmission mode is mode four, the transmitting the downlink data and the uplink data according to the data transmission mode includes:
scheme one: acquiring a general random access parameter configured by network side equipment, wherein the general random access parameter comprises random access resources;
transmitting the uplink data and the downlink data by using the random access resource indicated by the universal random access parameter;
the general random access parameter is configured by the network side equipment aiming at the condition that the uplink data and the downlink data arrive at the same time.
In this embodiment, the network side device configures a general random access parameter for the terminal, where the general random access parameter is configured for a case where uplink data and downlink data arrive at the same time, that is, the general random access parameter is a dedicated parameter for a case where uplink data and downlink data arrive at the same time. The terminal uses the access random access parameter to carry out a random access flow, and sends uplink and downlink data, and the network side equipment can learn the execution scene that the uplink and downlink data of the terminal arrive at the same time when receiving the universal random access resource. The general random access parameters are used for both 2-step random access and 4-step random access. When the terminal satisfies triggering of the uplink data and the downlink data based on the RA, the terminal initiates a random access flow by using the random access resource.
Wherein the universal random access parameters may include: a synchronization signal block (Synchronization Signal and PBCH block, SSB), RA resources, etc., such as a preamble (preamble), a random access channel (Random Access Channel, RACH) opportunity (occalasion).
Scheme II: initiating a random access flow;
transmitting the uplink data and/or the downlink data by using the random access resource in the execution process of the random access flow;
and carrying an RRC recovery request message in a first message of the random access procedure, wherein the RRC recovery request message comprises a first parameter, and the first parameter is used for indicating that the uplink data and the downlink data arrive at the same time.
In this embodiment, the terminal initiates random access using an uplink or downlink random access resource, and the first message may be MSGA for 2-step random access or msg3 for 4-step random access. In the 2-step random access MSGA or the 4-step random access msg3, the RRC message indicates the uplink and downlink small data packet trigger RRC resume request; a parameter (i.e., the first parameter) is added to the restoration Cause (Resume Cause) in the RRC Resume request message to indicate that uplink data and downlink data arrive at the same time.
In the second aspect, the setting position of the first parameter is, for example:
/>
optionally, in the embodiment of the present application, taking the uplink data and the downlink data as packet data as examples, the execution flow of determining the data transmission mode by the terminal based on the data transmission resource is shown in fig. 4:
judging and selecting RA-SDT or CG-SDT by the terminal; if CG-SDT resources are available and SPS-SDT resources are available, using a mode I; if CG-SDT resources are available, RA-SDT resources are available, a second use mode is adopted, the terminal uses the CG-SDT resources to send uplink data, carries an RRC recovery request, cancels RA-SDT DL flow and receives PDCCH; if CG-SDT resources are unavailable, RA-SDT resources are available, and SPS-SDT resources are available, using a third mode, executing a 2-step random access procedure, initiating a 2-step RA-SDT, or executing a 4-step random access procedure, receiving SPS, and transmitting uplink data in a PUSCH indicated by PDCCH (DCI) or sending BSR; if CG-SDT resources are unavailable and SPS-SDT resources are unavailable, RA-SDT resources are available, a RA-SDT DL flow is executed in a fourth mode, and specific RA resources are respectively determined for uplink data and downlink data.
In the embodiment of the application, under the condition that uplink data and downlink data arrive simultaneously, the terminal selects the adaptive data transmission mode to transmit the uplink data and the downlink data based on the currently configured data transmission resources including CG resources, SPS resources and random access resources, and performs joint processing on the uplink data transmission and the downlink data transmission, so that the data transmission delay of the terminal can be reduced, the signaling cost and the transmission resource cost of the data transmission can be reduced, and the transmission efficiency can be improved.
As shown in fig. 5, an embodiment of the present invention further provides a data transmission apparatus 500, including:
a first determining module 510, configured to determine a data transmission mode based on a data transmission resource when downlink data and uplink data arrive at the same time;
a first transmission module 520, configured to transmit the downlink data and the uplink data according to the data transmission mode;
wherein the data transmission resources include: at least one of grant CG resources, semi-persistent scheduling SPS resources, and random access resources is configured.
Optionally, the first determining module is specifically configured to:
and determining the data transmission mode according to the data transmission resources meeting the preset conditions and/or the data transmission resources indicated by the network side equipment.
Optionally, the data transmission resource is indicated by a paging message.
Optionally, the data transmission mode includes:
mode one: uplink data is transmitted by using CG resources, and downlink data is received by using SPS resources;
mode two: uplink data is transmitted by using CG resources, and downlink data is received by using random access resources;
mode three: the SPS resource is used for receiving downlink data, and the random access resource is used for transmitting uplink data;
Mode four: and transmitting the uplink data and the downlink data by using the random access resource.
Optionally, the first determining module is configured to perform at least one of the following operations:
if the CG resource and the SPS resource both meet the preset condition, determining that the data transmission mode is mode one;
if the CG resource and the random access resource both meet the preset condition, determining that the data transmission mode is a mode two;
if the CG resource meets a preset condition and the network side equipment indicates to use a random access resource to receive the downlink data, determining that the data transmission mode is a mode two;
if the SPS resource meets a preset condition, and the CG resource does not meet the preset condition, determining that the data transmission mode is a mode III;
if the network side equipment indicates to use SPS resources to receive the downlink data and the CG resources do not meet preset conditions, determining that the data transmission mode is a mode III;
and if the CG resource and the SPS resource do not meet the preset condition, determining that the data transmission mode is a mode four.
Optionally, the preset condition includes at least one of:
the network side equipment configures the data transmission resource for the terminal;
The data transmission resources are available;
the data transmission resource can bear data volume larger than the data volume of the data packet to be transmitted;
and the efficiency of the data transmission resource for data transmission reaches a first threshold value.
Optionally, in the case that the data transmission mode is mode two, the first transmission module is specifically configured to:
transmitting uplink data in the CG resource, wherein the uplink data carries an RRC recovery request message, and the RRC recovery request message is used for indicating the transmission requirement of the terminal for transmitting the uplink data and the downlink data;
determining a cell radio network temporary identifier C-RNTI based on a random access procedure;
and receiving the downlink data in a downlink receiving window based on the C-RNTI.
Optionally, in the case that the data transmission mode is mode three, the first transmission module is specifically configured to:
receiving downlink data at the SPS resource;
transmitting the uplink data by using a first random access resource in the random access resources under the condition that the first random access resource meets the preset condition;
and under the condition that a first random access resource in the random access resources does not meet the preset condition, transmitting the uplink data or a Buffer Status Report (BSR) in a Physical Uplink Shared Channel (PUSCH) indicated by Downlink Control Information (DCI) corresponding to the SPS resources, wherein the BSR is used for indicating the data quantity of the uplink data.
Optionally, in the case that the data transmission mode is mode four, the first transmission module is specifically configured to:
acquiring a general random access parameter configured by network side equipment, wherein the general random access parameter comprises random access resources;
transmitting the uplink data and the downlink data by using the random access resource indicated by the universal random access parameter;
the general random access parameter is configured by the network side equipment aiming at the condition that the uplink data and the downlink data arrive at the same time.
Optionally, in the case that the data transmission mode is mode four, the first transmission module is specifically configured to:
initiating a random access flow;
transmitting the uplink data and/or the downlink data by using the random access resource in the execution process of the random access flow;
and carrying an RRC recovery request message in a first message of the random access procedure, wherein the RRC recovery request message comprises a first parameter, and the first parameter is used for indicating that the uplink data and the downlink data arrive at the same time.
It should be noted that, the device provided in the embodiment of the present invention can implement all the method steps implemented in the embodiment of the method and achieve the same technical effects, and the details of the same parts and the advantages as those of the embodiment of the method in the embodiment are not described here.
As shown in fig. 6, a terminal 600 of an embodiment of the present invention includes a processor 610 and a transceiver 620, wherein,
the processor 610 is configured to: under the condition that downlink data and uplink data arrive at the same time, determining a data transmission mode based on data transmission resources;
the transceiver 620 is configured to: transmitting the downlink data and the uplink data according to the data transmission mode;
wherein the data transmission resources include: at least one of grant CG resources, semi-persistent scheduling SPS resources, and random access resources is configured.
Optionally, the processor determines the data transmission mode based on the data transmission resource, including:
and determining the data transmission mode according to the data transmission resources meeting the preset conditions and/or the data transmission resources indicated by the network side equipment.
Optionally, the data transmission resource is indicated by a paging message.
Optionally, the data transmission mode includes:
mode one: uplink data is transmitted by using CG resources, and downlink data is received by using SPS resources;
mode two: uplink data is transmitted by using CG resources, and downlink data is received by using random access resources;
mode three: the SPS resource is used for receiving downlink data, and the random access resource is used for transmitting uplink data;
Mode four: and transmitting the uplink data and the downlink data by using the random access resource.
Optionally, the processor determines the data transmission mode based on the data transmission resource, including at least one of:
if the CG resource and the SPS resource both meet the preset condition, determining that the data transmission mode is mode one;
if the CG resource and the random access resource both meet the preset condition, determining that the data transmission mode is a mode two;
if the CG resource meets a preset condition and the network side equipment indicates to use a random access resource to receive the downlink data, determining that the data transmission mode is a mode two;
if the SPS resource meets a preset condition, and the CG resource does not meet the preset condition, determining that the data transmission mode is a mode III;
if the network side equipment indicates to use SPS resources to receive the downlink data and the CG resources do not meet preset conditions, determining that the data transmission mode is a mode III;
and if the CG resource and the SPS resource do not meet the preset condition, determining that the data transmission mode is a mode four.
Optionally, the preset condition includes at least one of:
The network side equipment configures the data transmission resource for the terminal;
the data transmission resources are available;
the data transmission resource can bear data volume larger than the data volume of the data packet to be transmitted;
and the efficiency of the data transmission resource for data transmission reaches a first threshold value.
Optionally, in the case that the data transmission mode is mode two, the transceiver transmits the downlink data and the uplink data according to the data transmission mode, including:
transmitting uplink data in the CG resource, wherein the uplink data carries an RRC recovery request message, and the RRC recovery request message is used for indicating the transmission requirement of the terminal for transmitting the uplink data and the downlink data;
determining a cell radio network temporary identifier C-RNTI based on a random access procedure;
and receiving the downlink data in a downlink receiving window based on the C-RNTI.
Optionally, in the case that the data transmission mode is mode three, the transceiver transmits the downlink data and the uplink data according to the data transmission mode, including:
receiving downlink data at the SPS resource;
transmitting the uplink data by using a first random access resource in the random access resources under the condition that the first random access resource meets the preset condition;
And under the condition that a first random access resource in the random access resources does not meet the preset condition, transmitting the uplink data or a Buffer Status Report (BSR) in a Physical Uplink Shared Channel (PUSCH) indicated by Downlink Control Information (DCI) corresponding to the SPS resources, wherein the BSR is used for indicating the data quantity of the uplink data.
Optionally, in the case that the data transmission mode is mode four, the transceiver transmits the downlink data and the uplink data according to the data transmission mode, including:
acquiring a general random access parameter configured by network side equipment, wherein the general random access parameter comprises random access resources;
transmitting the uplink data and the downlink data by using the random access resource indicated by the universal random access parameter;
the general random access parameter is configured by the network side equipment aiming at the condition that the uplink data and the downlink data arrive at the same time.
Optionally, in the case that the data transmission mode is mode four, the transceiver transmits the downlink data and the uplink data according to the data transmission mode, including:
initiating a random access flow;
Transmitting the uplink data and/or the downlink data by using the random access resource in the execution process of the random access flow;
and carrying an RRC recovery request message in a first message of the random access procedure, wherein the RRC recovery request message comprises a first parameter, and the first parameter is used for indicating that the uplink data and the downlink data arrive at the same time.
It should be noted that, the terminal provided by the embodiment of the present invention can implement all the method steps implemented by the embodiment of the method and achieve the same technical effects, and the parts and beneficial effects that are the same as those of the embodiment of the method in the embodiment are not described in detail herein.
A terminal according to another embodiment of the present invention includes a transceiver, a processor, a memory, and a program or instructions stored on the memory and executable on the processor; the processor implements the data transmission method described above when executing the program or instructions.
The readable storage medium of the embodiment of the present invention stores a program or an instruction, which when executed by a processor, implements the steps in the data transmission method described above, and can achieve the same technical effects, and is not described herein again for avoiding repetition.
Wherein the processor is a processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium such as a Read-Only Memory (ROM), a random access Memory (Random Access Memory RAM), a magnetic disk or an optical disk.
It is further noted that the electronic devices described in this specification include, but are not limited to, smartphones, tablets, etc., and that many of the functional components described are referred to as modules in order to more particularly emphasize their implementation independence.
In an embodiment of the invention, the modules may be implemented in software for execution by various types of processors. An identified module of executable code may, for instance, comprise one or more physical or logical blocks of computer instructions which may, for instance, be organized as an object, procedure, or function. Nevertheless, the executables of an identified module need not be physically located together, but may comprise disparate instructions stored in different bits which, when joined logically together, comprise the module and achieve the stated purpose for the module.
Indeed, a module of executable code may be a single instruction, or many instructions, and may even be distributed over several different code segments, among different programs, and across several memory devices. Likewise, operational data may be identified within modules and may be embodied in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed over different locations including over different storage devices.
Where a module may be implemented in software, taking into account the level of existing hardware technology, a module may be implemented in software, and one skilled in the art may, without regard to cost, build corresponding hardware circuitry, including conventional Very Large Scale Integration (VLSI) circuits or gate arrays, and existing semiconductors such as logic chips, transistors, or other discrete components, to achieve the corresponding functions. A module may also be implemented in programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices or the like.
The exemplary embodiments described above are described with reference to the drawings, many different forms and embodiments are possible without departing from the spirit and teachings of the present invention, and therefore, the present invention should not be construed as limited to the exemplary embodiments set forth herein. Rather, these exemplary embodiments are provided so that this disclosure will be thorough and complete, and will convey the scope of the invention to those skilled in the art. In the drawings, the size of the elements and relative sizes may be exaggerated for clarity. The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Unless otherwise indicated, a range of values includes the upper and lower limits of the range and any subranges therebetween.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.

Claims (14)

1. A data transmission method, comprising:
under the condition that downlink data and uplink data arrive at the same time, the terminal determines a data transmission mode based on data transmission resources;
transmitting the downlink data and the uplink data according to the data transmission mode;
wherein the data transmission resources include: at least one of grant CG resources, semi-persistent scheduling SPS resources, and random access resources is configured.
2. The method of claim 1, wherein the determining a data transmission mode based on the data transmission resources comprises:
and determining the data transmission mode according to the data transmission resources meeting the preset conditions and/or the data transmission resources indicated by the network side equipment.
3. A method according to claim 1 or 2, characterized in that the data transmission resources are indicated by paging messages.
4. The method of claim 1, wherein the data transmission mode comprises:
mode one: uplink data is transmitted by using CG resources, and downlink data is received by using SPS resources;
mode two: uplink data is transmitted by using CG resources, and downlink data is received by using random access resources;
mode three: the SPS resource is used for receiving downlink data, and the random access resource is used for transmitting uplink data;
mode four: and transmitting the uplink data and the downlink data by using the random access resource.
5. The method of claim 4, wherein the determining a data transmission mode based on the data transmission resources comprises at least one of:
if the CG resource and the SPS resource both meet the preset condition, determining that the data transmission mode is mode one;
if the CG resource and the random access resource both meet the preset condition, determining that the data transmission mode is a mode two;
if the CG resource meets a preset condition and the network side equipment indicates to use a random access resource to receive the downlink data, determining that the data transmission mode is a mode two;
if the SPS resource meets a preset condition, and the CG resource does not meet the preset condition, determining that the data transmission mode is a mode III;
If the network side equipment indicates to use SPS resources to receive the downlink data and the CG resources do not meet preset conditions, determining that the data transmission mode is a mode III;
and if the CG resource and the SPS resource do not meet the preset condition, determining that the data transmission mode is a mode four.
6. The method according to claim 2 or 5, wherein the preset conditions comprise at least one of:
the network side equipment configures the data transmission resource for the terminal;
the data transmission resources are available;
the data transmission resource can bear data volume larger than the data volume of the data packet to be transmitted;
and the efficiency of the data transmission resource for data transmission reaches a first threshold value.
7. The method according to claim 5, wherein, in the case where the data transmission mode is mode two, the transmitting the downstream data and the upstream data according to the data transmission mode includes:
transmitting uplink data in the CG resource, wherein the uplink data carries an RRC recovery request message, and the RRC recovery request message is used for indicating the transmission requirement of the terminal for transmitting the uplink data and the downlink data;
Determining a cell radio network temporary identifier C-RNTI based on a random access procedure;
and receiving the downlink data in a downlink receiving window based on the C-RNTI.
8. The method according to claim 5, wherein in the case that the data transmission mode is mode three, the transmitting the downstream data and the upstream data according to the data transmission mode includes:
receiving downlink data at the SPS resource;
transmitting the uplink data by using a first random access resource in the random access resources under the condition that the first random access resource meets the preset condition;
and under the condition that a first random access resource in the random access resources does not meet the preset condition, transmitting the uplink data or a Buffer Status Report (BSR) in a Physical Uplink Shared Channel (PUSCH) indicated by Downlink Control Information (DCI) corresponding to the SPS resources, wherein the BSR is used for indicating the data quantity of the uplink data.
9. The method according to claim 5, wherein, in the case where the data transmission mode is mode four, the transmitting the downstream data and the upstream data according to the data transmission mode includes:
Acquiring a general random access parameter configured by network side equipment, wherein the general random access parameter comprises random access resources;
transmitting the uplink data and the downlink data by using the random access resource indicated by the universal random access parameter;
the general random access parameter is configured by the network side equipment aiming at the condition that the uplink data and the downlink data arrive at the same time.
10. The method according to claim 5, wherein, in the case where the data transmission mode is mode four, the transmitting the downstream data and the upstream data according to the data transmission mode includes:
initiating a random access flow;
transmitting the uplink data and/or the downlink data by using the random access resource in the execution process of the random access flow;
and carrying an RRC recovery request message in a first message of the random access procedure, wherein the RRC recovery request message comprises a first parameter, and the first parameter is used for indicating that the uplink data and the downlink data arrive at the same time.
11. A data transmission apparatus, comprising:
the first determining module is used for determining a data transmission mode based on data transmission resources under the condition that downlink data and uplink data arrive at the same time;
The first transmission module is used for transmitting the downlink data and the uplink data according to the data transmission mode;
wherein the data transmission resources include: at least one of grant CG resources, semi-persistent scheduling SPS resources, and random access resources is configured.
12. A terminal, comprising: a transceiver and a processor;
the processor is configured to: under the condition that downlink data and uplink data arrive at the same time, determining a data transmission mode based on data transmission resources;
the transceiver is used for: transmitting the downlink data and the uplink data according to the data transmission mode;
wherein the data transmission resources include: at least one of grant CG resources, semi-persistent scheduling SPS resources, and random access resources is configured.
13. A terminal, comprising: a transceiver, a processor, a memory, and a program or instructions stored on the memory and executable on the processor; a data transmission method according to any one of claims 1 to 10 when said program or instructions are executed by said processor.
14. A readable storage medium having stored thereon a program or instructions, which when executed by a processor, implement the steps of the data transmission method according to any of claims 1-10.
CN202210440863.5A 2022-04-25 2022-04-25 Data transmission method, device and terminal Pending CN117015046A (en)

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