CN111836280B - Data transmission method and terminal - Google Patents
Data transmission method and terminal Download PDFInfo
- Publication number
- CN111836280B CN111836280B CN201910797081.5A CN201910797081A CN111836280B CN 111836280 B CN111836280 B CN 111836280B CN 201910797081 A CN201910797081 A CN 201910797081A CN 111836280 B CN111836280 B CN 111836280B
- Authority
- CN
- China
- Prior art keywords
- random access
- terminal
- sdt
- request message
- access request
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 155
- 230000005540 biological transmission Effects 0.000 title claims abstract description 59
- 230000008569 process Effects 0.000 claims abstract description 46
- 238000004590 computer program Methods 0.000 claims description 12
- 230000001960 triggered effect Effects 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 5
- 230000006870 function Effects 0.000 description 11
- 230000006854 communication Effects 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 230000011664 signaling Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 101100476983 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) SDT1 gene Proteins 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000010187 selection method Methods 0.000 description 2
- 108700026140 MAC combination Proteins 0.000 description 1
- 101100533725 Mus musculus Smr3a gene Proteins 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 238000010897 surface acoustic wave method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
Landscapes
- 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 and a terminal, wherein the data transmission method comprises the following steps: when the RACH process of a first SDT of a terminal is carried out and the terminal has new data to be transmitted, selecting random access resources; and transmitting the new data to be transmitted by using the selected random access resource. In the embodiment of the invention, under the condition that the data transmission requirement is changed in the RACH process of the SDT, the terminal can select more proper random access resources for data transmission, thereby being beneficial to reducing the service transmission time delay.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a data transmission method and a terminal.
Background
At present, according to a Small Data Transmission (SDT) mechanism of a terminal, if the terminal has new uplink Data in a Random Access Channel (RACH) process of the SDT, the terminal can perform the RACH process of the SDT or perform Radio Resource Control (RRC) connection establishment to transmit the new uplink Data only after the RACH process of the currently performed SDT is completed. However, uplink data of the SDT user is usually small and bursty, and if the existing transmission method is adopted, service transmission delay is large, which affects smooth operation of the communication process.
Disclosure of Invention
The embodiment of the invention provides a data transmission method and a terminal, aiming at solving the problem of longer service transmission delay caused by the existing SDT transmission mode.
In order to solve the technical problem, the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a data transmission method, including:
when the RACH process of a first SDT of a terminal is carried out and the terminal has new data to be transmitted, selecting random access resources;
and transmitting the new data to be transmitted by using the selected random access resource.
In a second aspect, an embodiment of the present invention provides a terminal, including:
the control module is used for selecting random access resources when the RACH process of the first SDT of the terminal is carried out and the terminal has new data to be transmitted;
and the transmission module is used for transmitting the new data to be transmitted by utilizing the selected random access resource.
In a third aspect, an embodiment of the present invention provides a terminal, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the computer program, when executed by the processor, implements the steps of the data transmission method.
In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the above data transmission method.
In the embodiment of the invention, when the RACH process of the first SDT of the terminal is carried out and the terminal has new data to be transmitted, the random access resource can be selected again, and the new data to be transmitted can be transmitted by utilizing the selected random access resource. Compared with the existing SDT transmission mode, the embodiment of the invention can enable the terminal to select more proper random access resources to transmit data under the condition that the data transmission requirement is changed in the RACH process of the SDT, thereby being beneficial to reducing service transmission delay, reducing signaling cost and improving the utilization rate of resources.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
Fig. 1 is a flowchart of a data transmission method according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a terminal according to an embodiment of the present invention;
fig. 3 is a second schematic structural diagram of a terminal according to an embodiment of the present invention.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
The wireless communication system comprises a terminal and a network device. The terminal may also be referred to as a terminal Device or a User Equipment (UE), where the terminal may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a Wearable Device (Wearable Device), or a vehicle-mounted Device, and a specific type of the terminal is not limited in the embodiment of the present invention. The network device may be a Base Station or a core network, wherein the Base Station may be a 5G or later-version Base Station (e.g., a gNB, a 5G NR NB, etc.), or a Base Station in other communication systems (e.g., an eNB, a WLAN access point, or other access points, etc.), and the Base Station may be referred to as a node B, an enodeb, an access point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, or some other suitable terminology in the field, and is not limited to a specific terminology as long as the same technical effect is achieved.
Optionally, the SDT in the embodiment of the present invention may also be referred to as Early Data Transmission (EDT). For the EDT technology, the EDT technology is mainly applied to uplink transmission of a terminal, and the terminal can complete transmission of uplink data in an Idle state (Idle) or an Inactive state (Inactive) without RRC state transition.
Referring to fig. 1, fig. 1 is a flowchart of a data transmission method according to an embodiment of the present invention, where the method is applied to a terminal, and as shown in fig. 1, the method includes the following steps:
step 101: when the RACH process of the first SDT of the terminal is carried out and the terminal has new data to be transmitted, the random access resource is selected.
In this embodiment, the RACH procedure may be a 2-step (2-step) RACH procedure or a 4-step (4-step) RACH procedure. The selecting of the random access resource may be performed by the terminal to select the random access resource again in the corresponding RACH procedure. In order to select the random access resource in step 101, the terminal needs to have corresponding system configuration support.
It should be noted that, the 4-step random access procedure may be understood as follows: triggering the SDT in the 4-step random access process, where the 2-step random access process may be understood as: triggering the SDT in a 2-step random access procedure.
Optionally, in this embodiment of the present invention, the 4-step random access procedure may include a CP-SDT 4-step RACH (e.g., data is sent in the 3 rd message (i.e., Msg3) of the 4-step random access procedure through a signaling radio bearer) and an UP-SDT 4-step RACH (e.g., data is sent in the 3 rd message of the 4-step random access procedure through a data radio bearer); the SDT2-step random access procedure described above may include a CP-SDT2-step RACH (e.g., sending data in message A (i.e., MsgA) of a 2-step random access procedure over a signaling radio bearer) and an UP-SDT 2-step RACH (e.g., sending data in message A of a 2-step random access procedure over a data radio bearer).
Optionally, the random access resource may be at least one of: physical Random Access Channel (PRACH) resources, Serving cells (Serving cells), uplink carriers (UL carrier), uplink bandwidth parts (UL BWP), Synchronization Signal Blocks (SSB), channel state information reference signals (CSI-RS), preambles (preamble), preamble groups (preamble group), random access opportunities (RACH allocation), physical uplink shared channel configuration (PUSCH configuration) of a 2-step random access procedure, physical uplink shared channel opportunities (PUSCH allocation, PO) of a 2-step random access procedure, PUSCH demodulation reference signals (DMRS), ports of PUSCH demodulation reference signals (DMRS-port), and the like.
Step 102: and transmitting the new data to be transmitted by utilizing the selected random access resource.
In the data transmission method of the embodiment of the invention, when the RACH process of the first SDT of the terminal is carried out and the terminal has new data to be transmitted, the random access resource can be selected again, and the new data to be transmitted can be transmitted by utilizing the selected random access resource. Compared with the existing SDT transmission mode, the embodiment of the invention can enable the terminal to select more proper random access resources to transmit data under the condition that the data transmission requirement is changed in the RACH process of the SDT, thereby being beneficial to reducing service transmission delay, reducing signaling cost and improving the utilization rate of resources.
In the embodiment of the present invention, the condition that the terminal has new data to be transmitted may be that a high layer of the terminal triggers a new SDT process, or that an application layer of the terminal generates new data to be transmitted, which are respectively described as follows.
Situation one
In this case, when a RACH procedure for SDT is ongoing for the terminal, a new SDT procedure is triggered by the higher layers of the terminal. The step 101 may include:
when the RACH process of the first SDT of the terminal is carried out, if the higher layer of the terminal triggers the second SDT, the RACH process of the first SDT is stopped, the RACH process of the second SDT is triggered, and the random access resource is selected.
When the RACH procedure of the first SDT of the terminal is ongoing, the RACH procedure of the first SDT may be referred to as ongoing, that is, the whole phase of the RACH procedure is corresponded to.
Further, when the RACH procedure of the first SDT of the terminal is performed, specifically, the RACH procedure of the first SDT of the terminal is performed before the random access request message is not sent, that is, the time period during which the random access request message in the RACH procedure is not sent corresponds to the time period. And the period of time for which the random access request message has not been transmitted may include: a time period for initializing RACH procedure configuration, a resource selection time period for a random access request message, a time period for preparing random access request message transmission, etc.
Optionally, in this embodiment of the present invention, the random access request message may be any of the following: the first message in 4-step RACH (i.e., Msg1), the third message in 4-step RACH (i.e., Msg3), message A of 2-step RACH (i.e., MsgA).
In this case, the step 102 may include: and performing RACH process of the second SDT by using the selected random access resource so as to transmit new data to be transmitted.
For example, the higher layer of the UE1 triggers an SDT procedure such as the SDT1 procedure, and then the MAC layer of the UE1 performs the RACH procedure of SDT 1. If the higher layer of the UE1 triggers an SDT procedure such as the SDT2 procedure while the RACH procedure of the SDT1 is ongoing, the MAC layer of the UE1 may stop the current RACH procedure (i.e., the RACH procedure of the SDT 1), trigger or initialize a new RACH procedure (i.e., the RACH procedure of the SDT 2), and select a new random access resource to perform the RACH procedure of the SDT2 using the selected random access resource.
Alternatively, if the higher layer of the UE1 triggers an SDT procedure such as the SDT2 procedure while the RACH procedure of the SDT1 is in progress and the random access request message is not yet transmitted, the MAC layer of the UE1 may stop the current RACH procedure (i.e., the 2-step RACH procedure of the SDT 1), trigger or initialize a new RACH procedure (i.e., the 2-step RACH procedure of the SDT 2), and select a new random access resource to perform the RACH procedure of the SDT2 using the selected random access resource.
Situation two
In this case two, when a RACH procedure for SDT of the terminal is in progress, the terminal generates new data to be transmitted. The step 101 may include:
when the RACH process of the first SDT of the terminal is carried out, the terminal has new data to be transmitted, and the random access resource is selected under the condition that the first condition is met.
Wherein the first condition may include at least one of:
the potential second random access request message comprises a different payload size than the payload size comprised by the first random access request message;
the potential second random access request message comprises a load size smaller than a preset threshold value;
a MAC Protocol Data Unit (PDU) already exists in the random access buffer.
The first random access request message is a random access request message of a terminal trying to perform RACH (random access channel) process of a first SDT for the first time; the second random access request message is a random access request message of the terminal currently trying to perform the RACH process of the first SDT.
The potential second random access request message may include a payload size that may be the available pending data to be transmitted plus the MAC subheader overhead and possibly the required MAC CE size, plus the total size of the MAC PDUs in the random access buffer. The preset threshold may be preset by the terminal or configured by the network device, and this embodiment does not limit this.
Further, the selecting of the random access resource may include: selecting a random access resource according to at least one of the following items;
a payload size included in the potential second random access request message;
current transmission path loss;
a maximum transmission power of the terminal.
Therefore, the appropriate random access resource can be selected, and data can be transmitted smoothly.
In this case, the step 102 may include: firstly, reconstructing (rebuild) the MAC PDU in the second random access request message, wherein the reconstructed MAC PDU comprises new data to be transmitted; and then, transmitting the second random access request message by using the selected random access resource so as to transmit new data to be transmitted. Wherein the above reconstruction is to be understood as an update (update), i.e. can have the same meaning as an update.
Optionally, after reconstructing the MAC PDU in the second random access request message, the terminal may further store the reconstructed MAC PDU in a random access buffer for subsequent use.
For example, the higher layer of the UE2 triggers an SDT procedure such as SDT3 procedure, and then the MAC layer of the UE2 performs an SDT3 RACH procedure such as 2-step RACH procedure, or 4-step RACH procedure. In the RACH procedure of the SDT3, the UE2 generates new data to be transmitted, the higher layer (higher layer) of the UE2 decides to adopt the SDT, and delivers the new data to be transmitted to the lower layer (lower layer) in the form of data units.
Taking the 4-step RACH procedure as an example, if the UE2 sends Msg3 in the resource selection procedure of the current RACH attempt, but does not receive a response message (RAR) corresponding to the network device and the RACH procedure is not completed, the UE2 may attempt the next RACH procedure to retransmit Msg 3. If the potential Msg3Size (Msg3Size, which may be referred to as Msg3 payload Size, i.e. the available upstream pending transmission data plus MAC header overhead and MAC CE that may be needed, plus the total Size of MAC PDUs in the Msg3 buffer) is different from the Msg3Size of the first RACH procedure, and the potential Msg3Size is smaller than the network device configured threshold, and one MAC PDU already exists in the Msg3 buffer, the UE2 may re-select random access resources according to the potential Msg3Size, and perform a RACH procedure using the re-selected random access resources, and may indicate a Transport Block Size (Transport Block Size, TBS) or a TBS subset (or, a TBS indicated in a RAR message) for SDT according to the network device, reconstruct (which may also be referred to as updated) MAC PDUs in the Msg3, store the reconstructed MAC PDUs in the Msg3 Msg, and prepare 3 for subsequent sending, so as to realize the transmission of new data to be transmitted. Otherwise, the UE2 still selects the random access resource used at the first RACH transmission Msg3 for the RACH procedure.
Taking the 2-step RACH procedure as an example, if the UE2 sends MsgA in the resource selection procedure of the current RACH attempt, but does not receive a response message (MsgB) corresponding to the network device and the RACH procedure is not completed, the UE2 may attempt the next RACH procedure to retransmit MsgA. If the potential MsgA payload size (MsgA payload size, which may be referred to as MsgA payload size, i.e. the available uplink pending data plus MAC header overhead and MAC CE that may be needed, plus the total size of MAC PDUs in the MsgA buffer) is different from the MsgA size of the first RACH procedure, and the potential MsgA payload size is smaller than a threshold configured by the network device, and a MAC PDU already exists in the MsgA buffer, the UE2 may, based on the potential MsgA payload size, re-make the selection of random access resources, and can reconstruct (i.e., update) the MAC PDUs in the MsgA, store the reconstructed MAC PDUs in the MsgA buffer, according to the TBS or TBS subset indicated by the network device for SDT (or the TBS or TBS subset in the MsgA PUSCH configuration), and the RACH process is carried out by utilizing the reselected random access resource so as to realize the transmission of new data to be transmitted. Otherwise, the UE2 still selects the random access resource used when the RACH transmission MsgA was first for the RACH procedure.
The above embodiments describe the data transmission method of the present invention, and a terminal corresponding to the data transmission method of the present invention will be described with reference to the embodiments and the drawings.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a terminal according to an embodiment of the present invention, and as shown in fig. 2, the terminal 20 includes:
a control module 21, configured to select a random access resource when an RACH procedure of a first SDT of the terminal is performed and the terminal has new data to be transmitted;
and a transmission module 22, configured to transmit the new data to be transmitted by using the selected random access resource.
In the embodiment of the invention, when the RACH process of the first SDT of the terminal is carried out and the terminal has new data to be transmitted, the random access resource can be selected again, and the new data to be transmitted can be transmitted by utilizing the selected random access resource. Compared with the existing SDT transmission mode, the embodiment of the invention can enable the terminal to select more proper random access resources to transmit data under the condition that the data transmission requirement is changed in the RACH process of the SDT, thereby being beneficial to reducing service transmission delay, reducing signaling cost and improving the utilization rate of resources.
Optionally, the control module 21 is specifically configured to:
when the RACH process of the first SDT of the terminal is carried out, if the high layer of the terminal triggers the second SDT, the RACH process of the first SDT is stopped, the RACH process of the second SDT is triggered, and the random access resource is selected.
Optionally, when the RACH procedure of the first SDT of the terminal is performed, the method specifically includes:
the RACH procedure of the first SDT of the terminal is ongoing and a random access request message has not yet been sent.
Optionally, the transmission module 22 may be configured to:
and performing the RACH process of the second SDT by using the selected random access resource.
Optionally, the control module 21 may be configured to:
under the condition of meeting a first condition, selecting random access resources;
wherein the first condition comprises at least one of:
the potential second random access request message comprises a different payload size than the payload size comprised by the first random access request message;
the potential second random access request message comprises a load size smaller than a preset threshold value;
the random access buffer area already has a media access control protocol data unit (MAC PDU);
wherein the first random access request message is a random access request message for a first attempt of the terminal to perform a RACH procedure of the first SDT; the second random access request message is a random access request message for the terminal to currently attempt the RACH procedure of the first SDT.
Optionally, the control module 21 may be configured to:
selecting a random access resource according to at least one of the following items;
a payload size included in the potential second random access request message;
current transmission path loss;
a maximum transmission power of the terminal.
Optionally, the transmission module 22 includes:
a reconstructing unit, configured to reconstruct the MAC PDU in the second random access request message, where the reconstructed MAC PDU includes the new data to be transmitted;
a transmission unit, configured to transmit the second random access request message by using the selected random access resource.
Optionally, the terminal 20 further includes:
and the storage module is used for storing the reconstructed MAC PDU in the random access buffer area.
In addition, an embodiment of the present invention further provides a terminal, including a processor, a memory, and a computer program stored in the memory and capable of running on the processor, where the computer program, when executed by the processor, implements each process of the data transmission method embodiment, and can achieve the same technical effect, and details are not repeated here to avoid repetition.
Referring to fig. 3, fig. 3 is a schematic diagram of a hardware structure of a terminal for implementing various embodiments of the present invention, as shown in fig. 3, the terminal 300 includes but is not limited to: radio frequency unit 301, network module 302, audio output unit 303, input unit 304, sensor 305, display unit 306, user input unit 307, interface unit 308, memory 309, processor 310, and power supply 311. Those skilled in the art will appreciate that the terminal structure shown in fig. 3 is not intended to be limiting and that the terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.
The processor 310 is configured to select a random access resource when an RACH entry procedure of a first SDT of the terminal 300 is performed and the terminal 300 has new data to be transmitted;
a radio frequency unit 301, configured to transmit the new data to be transmitted by using the selected random access resource.
It can be understood that the terminal 300 according to the embodiment of the present invention can implement the processes implemented in the method embodiment shown in fig. 1 and achieve the same beneficial effects, and for avoiding repetition, the details are not described here again.
It should be understood that, in the embodiment of the present invention, the radio frequency unit 301 may be used for receiving and sending signals during a message sending and receiving process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 310; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 301 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 301 can also communicate with a network and other devices through a wireless communication system.
The terminal provides wireless broadband internet access to the user through the network module 302, such as helping the user send and receive e-mails, browse web pages, access streaming media, and the like.
The audio output unit 303 may convert audio data received by the radio frequency unit 301 or the network module 302 or stored in the memory 309 into an audio signal and output as sound. Also, the audio output unit 303 may also provide audio output related to a specific function performed by the terminal 300 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 303 includes a speaker, a buzzer, a receiver, and the like.
The input unit 304 is used to receive audio or video signals. The input Unit 304 may include a Graphics Processing Unit (GPU) 3041 and a microphone 3042, and the Graphics processor 3041 processes image data of a still picture or video obtained by an image capturing apparatus (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 306. The image frames processed by the graphic processor 3041 may be stored in the memory 309 (or other storage medium) or transmitted via the radio frequency unit 301 or the network module 302. The microphone 3042 may receive sounds and may be capable of processing such sounds into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 301 in case of the phone call mode.
The terminal 300 also includes at least one sensor 305, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that adjusts the brightness of the display panel 3061 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 3061 and/or a backlight when the terminal 300 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 305 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.
The display unit 306 is used to display information input by the user or information provided to the user. The Display unit 306 may include a Display panel 3061, and the Display panel 3061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 307 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 307 includes a touch panel 3071 and other input devices 3072. The touch panel 3071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 3071 (e.g., operations by a user on or near the touch panel 3071 using a finger, a stylus, or any suitable object or attachment). The touch panel 3071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 310, and receives and executes commands sent by the processor 310. In addition, the touch panel 3071 may be implemented using various types, such as resistive, capacitive, infrared, and surface acoustic wave. The user input unit 307 may include other input devices 3072 in addition to the touch panel 3071. Specifically, the other input devices 3072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described herein.
Further, the touch panel 3071 may be overlaid on the display panel 3061, and when the touch panel 3071 detects a touch operation on or near the touch panel, the touch operation is transmitted to the processor 310 to determine the type of the touch event, and then the processor 310 provides a corresponding visual output on the display panel 3061 according to the type of the touch event. Although the touch panel 3071 and the display panel 3061 are shown as two separate components in fig. 3 to implement the input and output functions of the terminal, in some embodiments, the touch panel 3071 and the display panel 3061 may be integrated to implement the input and output functions of the terminal, which is not limited herein.
The interface unit 308 is an interface through which an external device is connected to the terminal 300. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 308 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal 300 or may be used to transmit data between the terminal 300 and an external device.
The memory 309 may be used to store software programs as well as various data. The memory 309 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 309 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The processor 310 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, performs various functions of the terminal and processes data by operating or executing software programs and/or modules stored in the memory 309 and calling data stored in the memory 309, thereby performing overall monitoring of the terminal. Processor 310 may include one or more processing units; preferably, the processor 310 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 310.
The terminal 300 may further include a power supply 311 (such as a battery) for supplying power to various components, and preferably, the power supply 311 may be logically connected to the processor 310 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system.
In addition, the terminal 300 may further include some functional modules that are not shown, and are not described herein again.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program can implement each process of the data transmission method embodiment shown in fig. 1, and can achieve the same technical effect, and is not described herein again to avoid repetition. The computer-readable storage medium is, for example, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A data transmission method is applied to a terminal, and is characterized by comprising the following steps:
when a random access RACH process of a first small data transmission SDT of a terminal is carried out and the terminal has new data to be transmitted, selecting random access resources;
transmitting the new data to be transmitted by using the selected random access resource;
wherein the selecting of the random access resource comprises:
under the condition of meeting a first condition, selecting random access resources;
wherein the first condition comprises at least one of:
the potential second random access request message comprises a different payload size than the payload size comprised by the first random access request message;
the potential second random access request message comprises a load size smaller than a preset threshold value;
the random access buffer area already has a media access control protocol data unit (MAC PDU);
wherein the first random access request message is a random access request message for a first attempt of the terminal to perform a RACH procedure of the first SDT; the second random access request message is a random access request message for the terminal to currently attempt the RACH procedure of the first SDT.
2. The method of claim 1, wherein the selecting the random access resource when the random access RACH procedure of the first small data transmission SDT of the terminal is performed and the terminal has new data to be transmitted comprises:
when the RACH process of the first SDT of the terminal is carried out, if the high layer of the terminal triggers the second SDT, the RACH process of the first SDT is stopped, the RACH process of the second SDT is triggered, and the random access resource is selected.
3. The method according to claim 2, wherein the RACH procedure of the first SDT of the terminal is performed specifically as follows:
the RACH procedure of the first SDT of the terminal is ongoing and a random access request message has not yet been sent.
4. The method of claim 2, wherein the transmitting the new data to be transmitted by using the selected random access resource comprises:
and performing the RACH process of the second SDT by using the selected random access resource.
5. The method of claim 1, wherein the selecting the random access resource comprises:
selecting a random access resource according to at least one of the following items;
a payload size included in the potential second random access request message;
current transmission path loss;
a maximum transmission power of the terminal.
6. The method of claim 1, wherein the transmitting the new data to be transmitted by using the selected random access resource comprises:
reconstructing the MAC PDU in the second random access request message, wherein the reconstructed MAC PDU comprises the new data to be transmitted;
and transmitting the second random access request message by using the selected random access resource.
7. The method of claim 6, wherein after reconstructing the MAC PDU in the second random access request message, the method further comprises:
and storing the reconstructed MAC PDU in the random access buffer area.
8. A terminal, comprising:
the control module is used for selecting random access resources when the RACH process of the first SDT of the terminal is carried out and the terminal has new data to be transmitted;
the transmission module is used for transmitting the new data to be transmitted by utilizing the selected random access resources;
wherein the control module is specifically configured to: under the condition of meeting a first condition, selecting random access resources;
wherein the first condition comprises at least one of:
the potential second random access request message comprises a different payload size than the payload size comprised by the first random access request message;
the potential second random access request message comprises a load size smaller than a preset threshold value;
the MAC PDU already exists in the random access buffer area;
wherein the first random access request message is a random access request message for a first attempt of the terminal to perform a RACH procedure of the first SDT; the second random access request message is a random access request message for the terminal to currently attempt the RACH procedure of the first SDT.
9. A terminal comprising a memory, a processor, a computer program stored on the memory and executable on the processor, characterized in that the computer program, when executed by the processor, implements the steps of the data transmission method according to any one of claims 1 to 7.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the data transmission method according to one of claims 1 to 7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910797081.5A CN111836280B (en) | 2019-08-27 | 2019-08-27 | Data transmission method and terminal |
| PCT/CN2020/111782 WO2021037148A1 (en) | 2019-08-27 | 2020-08-27 | Data transmission method and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910797081.5A CN111836280B (en) | 2019-08-27 | 2019-08-27 | Data transmission method and terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111836280A CN111836280A (en) | 2020-10-27 |
| CN111836280B true CN111836280B (en) | 2022-02-01 |
Family
ID=72912660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910797081.5A Active CN111836280B (en) | 2019-08-27 | 2019-08-27 | Data transmission method and terminal |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111836280B (en) |
| WO (1) | WO2021037148A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022141071A1 (en) * | 2020-12-29 | 2022-07-07 | Oppo广东移动通信有限公司 | Small data transmission method and apparatus, and device and medium |
| US20240073920A1 (en) * | 2021-01-14 | 2024-02-29 | Nokia Technologies Oy | Physical downlink control channel monitoring for small data transmission procedure |
| WO2022205344A1 (en) * | 2021-04-01 | 2022-10-06 | Lenovo (Beijing) Limited | Method and apparatus for handling arrival of non-small data transmission |
| BR112023023522A2 (en) * | 2021-05-10 | 2024-03-12 | Beijing Xiaomi Mobile Software Co Ltd | DATA TRANSMISSION METHOD AND APPARATUS, COMMUNICATION DEVICE, AND, COMPUTER STORAGE MEDIA |
| CN115623604A (en) * | 2021-07-14 | 2023-01-17 | 大唐移动通信设备有限公司 | Information processing method and device |
| WO2023108474A1 (en) * | 2021-12-15 | 2023-06-22 | Oppo广东移动通信有限公司 | Communication method and apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109328484A (en) * | 2016-06-24 | 2019-02-12 | 高通股份有限公司 | The random access collision permitted based on multiple uplinks is reduced |
| CN110012551A (en) * | 2018-01-05 | 2019-07-12 | 夏普株式会社 | User equipment and correlation technique |
| CN110063088A (en) * | 2016-12-12 | 2019-07-26 | 华为技术有限公司 | For the node of connectionless transport, method and computer program |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012174709A1 (en) * | 2011-06-21 | 2012-12-27 | Renesas Mobile Corporation | Methods and apparatus for facilitating offline small data transmission |
| US9807800B2 (en) * | 2012-10-08 | 2017-10-31 | Mediatek Singapore Pte. Ltd. | Data transmission method |
| US9674873B2 (en) * | 2013-03-29 | 2017-06-06 | Lg Electronics Inc. | Method for informing identification of a UE and device therefor |
| US20160174187A1 (en) * | 2014-12-15 | 2016-06-16 | Qualcomm Incorporated | System and Methods for Enhancing Data Throughput and Page Performance in a Multi-SIM Wireless Communication Device |
| CN108476539B (en) * | 2016-01-29 | 2022-08-19 | 成均馆大学校产学协力团 | Random access method considering coverage grade and subcarrier spacing configuration and/or multi-frequency configuration in Internet of things environment |
| US20190208411A1 (en) * | 2018-03-16 | 2019-07-04 | Intel Corporation | Security framework for msg3 and msg4 in early data transmission |
-
2019
- 2019-08-27 CN CN201910797081.5A patent/CN111836280B/en active Active
-
2020
- 2020-08-27 WO PCT/CN2020/111782 patent/WO2021037148A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109328484A (en) * | 2016-06-24 | 2019-02-12 | 高通股份有限公司 | The random access collision permitted based on multiple uplinks is reduced |
| CN110063088A (en) * | 2016-12-12 | 2019-07-26 | 华为技术有限公司 | For the node of connectionless transport, method and computer program |
| CN110012551A (en) * | 2018-01-05 | 2019-07-12 | 夏普株式会社 | User equipment and correlation technique |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021037148A1 (en) | 2021-03-04 |
| CN111836280A (en) | 2020-10-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111836280B (en) | Data transmission method and terminal | |
| CN110324859B (en) | Method for selecting transmission resource of sidelink, configuration method, terminal and network equipment | |
| US20210153259A1 (en) | Random access method and related device | |
| CN110475364B (en) | Method and terminal for receiving non-periodic tracking reference signal | |
| CN110719628B (en) | Transmission method, terminal equipment and network equipment | |
| EP3806538A1 (en) | Cell management method, trigger condition configuration method, terminal device, and network side device | |
| CN110167041B (en) | Beam failure recovery request sending method and user equipment | |
| CN111278091A (en) | Auxiliary information reporting method and terminal | |
| US20210219128A1 (en) | Method for processing terminal device capability information, terminal device, and network-side device | |
| CN111836395B (en) | Random access method, configuration method, terminal and network side equipment | |
| CN111106909B (en) | Data transmission method, data transmission configuration method, terminal and network side equipment | |
| CN109561514B (en) | Processing method, terminal and base station for random access process | |
| US20210076426A1 (en) | Random access method, terminal, and network device | |
| CN111836311B (en) | Capability negotiation method, terminal and network equipment | |
| CN111263428B (en) | Data processing method and user equipment | |
| CN113543313A (en) | Paging response method, terminal and network equipment | |
| US20210204329A1 (en) | Random access method and terminal | |
| CN113133126B (en) | Method, terminal and network equipment for converting working frequency points | |
| CN110971357B (en) | Information indication method, indication receiving method, terminal and network side equipment | |
| CN110972327B (en) | Signal transmission method and communication equipment based on unauthorized frequency band | |
| CN113473605A (en) | Conflict resource determination method and terminal | |
| CN111836396B (en) | Method for selecting random access request resource, terminal and network equipment | |
| CN111836210B (en) | Configuration method, terminal and network side equipment of multimedia multicast broadcast service | |
| CN113079581A (en) | Method, terminal and network side device for reporting random access report | |
| CN110831224A (en) | Random access method and terminal equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |