WO2024032800A1

WO2024032800A1 - Data transmission method and apparatus, and device, storage medium and program product

Info

Publication number: WO2024032800A1
Application number: PCT/CN2023/112737
Authority: WO
Inventors: 周化雨; 潘振岗
Original assignee: 展讯通信（上海）有限公司
Priority date: 2022-08-12
Filing date: 2023-08-11
Publication date: 2024-02-15
Also published as: CN117676830A

Abstract

Provided in the present application are a data transmission method and apparatus, and a device, a storage medium and a program product. The method comprises: a base station configuring a CFRA resource for a terminal device, that is, the terminal device acquiring configuration information of the CFRA resource, which is sent by the base station; and transmitting data on the CFRA resource according to the configuration information. Therefore, the time delay of small packet data transmission of a downlink service is effectively shortened, and the communication efficiency is thus improved.

Description

Data transmission methods, devices, equipment, storage media and program products

This application requires the priority of the Chinese patent application submitted to the State Intellectual Property Office on August 12, 2022, with the application number 202210972013.X and the application name "data transmission method, device, equipment, storage medium and program product". The entire contents are incorporated herein by reference.

Technical field

The present application relates to the field of communication technology, and in particular, to a data transmission method, device, equipment, storage medium and program product.

Background technique

In Machine Type Communication (MTC) and Internet of Things (IOT), small packet data transmission can be used.

For SDT (Mobile Terminated SDT, MT-SDT) of downlink services, under normal circumstances, terminal equipment can trigger MT-SDT through paging (Paging). That is to say, after the terminal device receives the paging and confirms that MT-SDT is triggered, it enters the random access process, such as four-step random access (4-Step Random Access), and when receiving message 4 (Message 4, Msg4) Or start MT-SDT after receiving message 4.

Since the terminal device needs to go through the process of sending message 1 (Message 1, Msg1), receiving message 2 (Message 2, Msg2) and sending message 3 (Message 3, Msg3) from receiving paging to receiving message 4, the entire process Longer, resulting in larger delay. How to reduce the delay of MT-SDT is an urgent problem to be solved.

Contents of the invention

This application provides a data transmission method, device, equipment, storage medium and program product, which solves the problem of long delay of MT-SDT.

In the first aspect, this application provides a data transmission method, including:

Obtain the configuration information of contention-free random access CFRA resources.

In a possible implementation, the configuration information is any one of the following:

paging message;

Radio Resource Control RRC release message.

In a possible implementation, the paging message or the RRC release message includes a dedicated random access message. Resource configuration parameters of the machine access channel.

In a possible implementation, the configuration information includes one or more synchronization signal block lists.

In a possible implementation, the synchronization signal block list has a corresponding relationship with the physical random access channel timing mask index.

In the second aspect, this application provides a data transmission method, including:

Obtain the configuration information of contention-free random access CFRA resources;

Determine whether the CFRA resource is available according to the indication information.

System information block SIB message;

paging message;

Radio Resource Control RRC release message.

In a possible implementation, the paging message or the RRC release message includes resource configuration parameters of a dedicated random access channel.

In a possible implementation, the indication information is carried in any of the following ways:

wake-up signal;

Physical downlink control channel PDCCH command;

Paging PDCCH;

paging message;

Small packet data transmission SDT related PDCCH.

In a possible implementation, the SDT-related PDCCH includes a PDCCH corresponding to the SDT search space.

In a possible implementation, the search space of the SDT is configured by at least one of the following parameters:

SDT search space parameters;

SDT configures authorized search space parameters;

Search space parameters used by MT-SDT for small packet data transmission in downlink services.

In a possible implementation, when the indication information indicates that the CFRA resource is available, the CFRA resource is available within the first time window.

In a possible implementation, the first time window includes a window starting position and a window length.

In a possible implementation, the window starting position is the end symbol of the signal or channel carrying the indication information; or,

The window starting position is the first symbol of the end time slot of the signal or channel carrying the indication information.

In a possible implementation, the window length is configured by high-level parameters.

In a possible implementation, when the indication information indicates that the CFRA resource is available, the CFRA resource is available within the running time of the first timer.

In a possible implementation, the start running time of the first timer is at the end symbol of the signal or channel carrying the indication information; or,

The start running time of the first timer is the first symbol of the end time slot of the signal or channel carrying the indication information.

In a possible implementation, the running time of the first timer is configured by high-level parameters.

In a possible implementation, the configuration of the CFRA resource includes one or more synchronization signal block lists.

In a possible implementation, there is a corresponding relationship between the synchronization signal block list and the physical random access channel timing mask index.

In the third aspect, this application provides a data transmission method, including:

After the first moment, monitor the physical downlink control channel PDCCH related to small packet data transmission SDT.

SDT search space parameters;

SDT configures authorized search space parameters;

In a possible implementation, the first moment is the first symbol of the SDT-related PDCCH after the physical random access channel PRACH is transmitted.

In a possible implementation, the first symbol of the SDT-related PDCCH is the first symbol of the earliest control resource set CORESET used to carry the SDT-related PDCCH.

In the fourth aspect, this application provides a data transmission method, including:

Send configuration information for random access CFRA resources without contention.

paging message;

Radio Resource Control RRC release message.

In the fifth aspect, this application provides a data transmission method, including:

Send configuration information for random access to CFRA resources without competition;

Send instructions.

System information block SIB message;

paging message;

Radio Resource Control RRC release message.

wake-up signal;

Physical downlink control channel PDCCH command;

Paging PDCCH;

paging message;

Small packet data transmission SDT related PDCCH.

SDT search space parameters;

SDT configures authorized search space parameters;

In the sixth aspect, this application provides a data transmission method, including:

After the first moment, small packet data is sent to transmit the SDT-related physical downlink control channel PDCCH.

SDT search space parameters;

SDT configures authorized search space parameters;

In a possible implementation, the first moment is the first symbol of the SDT-related PDCCH after receiving the physical random access channel PRACH.

In a seventh aspect, this application provides a data transmission device, including:

The acquisition module is used to obtain the configuration of contention-free random access CFRA resources.

paging message;

Radio Resource Control RRC release message.

In an eighth aspect, this application provides a data transmission device, including:

The acquisition module is used to obtain the configuration of random access CFRA resources without competition;

A determining module, configured to determine whether the CFRA resource is available according to the indication information.

System information block SIB message;

paging message;

Radio Resource Control RRC release message.

wake-up signal;

Physical downlink control channel PDCCH command;

Paging PDCCH;

paging message;

Small packet data transmission SDT related PDCCH.

SDT search space parameters;

SDT configures authorized search space parameters;

In a possible implementation, the start running time of the first timer carries the instruction the end symbol of a signal or channel indicating information; or,

In a ninth aspect, this application provides a data transmission device, including:

The monitoring module is used to monitor the physical downlink control channel PDCCH related to the small packet data transmission SDT after the first moment to obtain data transmission resources.

SDT search space parameters;

SDT configures authorized search space parameters;

In a tenth aspect, this application provides a data transmission device, including:

The sending module is used to send the configuration information of random access CFRA resources without competition.

paging message;

Radio Resource Control RRC release message.

In a possible implementation, the paging message or RRC release message includes resource configuration parameters of the dedicated random access channel.

In an eleventh aspect, this application provides a data transmission device, including:

The first sending module is used to send configuration information of random access CFRA resources without competition;

The second sending module is used to send indication information.

System information block SIB message;

paging message;

Radio Resource Control RRC release message.

wake-up signal;

Physical downlink control channel PDCCH command;

Paging PDCCH;

paging message;

Small packet data transmission SDT related PDCCH.

SDT search space parameters;

SDT configures authorized search space parameters;

In a twelfth aspect, this application provides a data transmission device, including:

The sending module is configured to send small packet data to transmit SDT-related physical downlink control channel PDCCH after the first moment.

SDT search space parameters;

SDT configures authorized search space parameters;

In a thirteenth aspect, the present application provides an electronic device, including: a processor, and a memory communicatively connected to the processor;

The memory stores computer execution instructions;

The processor executes computer execution instructions stored in the memory to implement the method as described in the first aspect.

In a fourteenth aspect, this application provides an electronic device, including: a processor, and a memory communicatively connected to the processor;

The memory stores computer execution instructions;

The processor executes computer execution instructions stored in the memory to implement the method described in the second aspect.

In a fifteenth aspect, this application provides an electronic device, including: a processor, and a memory communicatively connected to the processor;

The memory stores computer execution instructions;

The processor executes computer execution instructions stored in the memory to implement the method described in the third aspect.

In a sixteenth aspect, this application provides an electronic device, including: a processor, and a memory communicatively connected to the processor;

The memory stores computer execution instructions;

The processor executes computer execution instructions stored in the memory to implement the method described in the fourth aspect.

In a seventeenth aspect, this application provides an electronic device, including: a processor, and a memory communicatively connected to the processor;

The memory stores computer execution instructions;

The processor executes computer execution instructions stored in the memory to implement the method as described in the fifth aspect.

In an eighteenth aspect, this application provides an electronic device, including: a processor, and a memory communicatively connected to the processor;

The memory stores computer execution instructions;

The processor executes computer execution instructions stored in the memory to implement the method described in the sixth aspect.

In a nineteenth aspect, the present application provides a computer-readable storage medium in which computer-executable instructions are stored, and when executed by a processor, the computer-executable instructions are used to implement the first to sixth aspects. The data transmission method described in any one of the aspects.

In a twentieth aspect, the present application provides a computer program product, including a computer program that implements the data transmission method described in any one of the first to sixth aspects when executed by a processor.

In a twenty-first aspect, the present application provides a chip. A computer program is stored on the chip. When the computer program is executed by the chip, the method described in the first aspect is implemented. The chip can also be a chip module.

This application provides a data transmission method, device, equipment, storage medium and program product. The base station configures CFRA resources for the terminal equipment, that is, the terminal equipment configures the CFRA resources according to the configuration information sent by the base station, and uses the configuration information in the CFRA resources. Upstream data transmission effectively reduces the transmission delay of small packet data in downlink services and improves communication efficiency.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.

Figure 1 is a schematic diagram of an application scenario provided by an embodiment of the present application;

Figure 2 is a schematic flow chart of a data transmission method provided in Embodiment 1 of the present application;

Figure 3 is a schematic flow chart of another data transmission method provided in Embodiment 2 of the present application;

Figure 4 is a schematic flow chart of another data transmission method provided in Embodiment 5 of the present application;

Figure 5 is a schematic structural diagram of a data transmission device provided in Embodiment 7 of the present application;

Figure 6 is a schematic structural diagram of a data transmission device provided in Embodiment 8 of the present application;

Figure 7 is a schematic structural diagram of a data transmission device provided in Embodiment 9 of the present application;

Figure 8 is a schematic structural diagram of a data transmission device provided in Embodiment 10 of the present application;

Figure 9 is a schematic structural diagram of a data transmission device provided in Embodiment 11 of the present application;

Figure 10 is a schematic structural diagram of a data transmission device provided in Embodiment 12 of the present application;

Figure 11 is a schematic structural diagram of an electronic device provided in Embodiment 13 of the present application;

Figure 12 is a schematic structural diagram of an electronic device provided in Embodiment 14 of the present application;

Figure 13 is a schematic structural diagram of an electronic device provided in Embodiment 15 of the present application;

Figure 14 is a schematic structural diagram of an electronic device provided in Embodiment 16 of the present application;

Figure 15 is a schematic structural diagram of an electronic device provided in Embodiment 17 of the present application;

Figure 16 is a schematic structural diagram of an electronic device provided in Embodiment 18 of the present application.

Through the above-mentioned drawings, clear embodiments of the present application have been shown, which will be described in more detail below. These drawings and text descriptions are not intended to limit the scope of the present application's concepts in any way, but are intended to illustrate the application's concepts for those skilled in the art with reference to specific embodiments.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments These are part of the embodiments of this application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

It should be noted that the terms “first”, “second” and other terms involved in the embodiments of this application are only used for the purpose of distinguishing and describing, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or Order is implied; the term "multiple" refers to two or more items (including two items).

The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Long Term Evolution (Long Term Evolution) Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Global Internet Microwave Interface Enter (Worldwide Interoperability for Microwave Access, WiMAX) communication system, fifth generation (5th Generation, 5G) mobile communication system or new radio access technology (new radioAccess Technology, NR). Among them, the 5G mobile communication system may include non-standalone networking (Non-Standalone, NSA) and/or standalone networking (Standalone, SA).

The technical solution provided by this application can also be applied to MTC, Long Term Evolution-machine (LTE-M), Device-to-Device (D2D) network, Machine to Machine (Machine to Machine) , M2M) network, IoT network or other networks. Among them, the IoT network may include, for example, the Internet of Vehicles. Among them, the communication methods in the Internet of Vehicles system are collectively called Vehicle to X (V2X, X can represent anything). For example, the V2X can include: Vehicle to Vehicle (V2V) communication, where the vehicle and Infrastructure (Vehicle to Infrastructure, V2I) communication, communication between vehicles and pedestrians (Vehicle to Pedestrian, V2P) or vehicle and network (Vehicle to Network, V2N) communication, etc.

The technical solution provided by this application can also be applied to future communication systems, such as the sixth generation mobile communication system. This application does not limit this.

In order to explain the present application more clearly, the relevant technologies involved in the present application are first introduced below.

In the communication between the terminal equipment and the base station, when the amount of data is small (i.e., small packet data), the terminal equipment can send and receive data in the inactive state or idle state without entering the connected state. This can avoid frequent RRC connection establishment and Release not only reduces network signaling overhead, but also reduces the power consumption of terminal equipment. The inactive state can be Inactive Mode, Inactive State or Radio Resource Control (RRC) Inactive State, and the idle state can be Idle. Mode, Idle State or RRC Idle State. The connected state can be Connected Mode, Connected State or RRC Connected State.

In the 5G R17 version, Small Data Transmission (SDT) can be divided into Random Access SDT (RA-SDT for short) and Configured Grant SDT (CG-SDT for short). ). The SDT of R17 is generally called mobile-initiated SDT (Mobile oriented SDT, MO-SDT). For RA-SDT, the terminal device can send data (such as message 3) in the random access channel (Random Access Channel, RACH) process (or simply random access process). For CG-SDT, the terminal device can transmit uplink on the Configured Grant (CG) or on the Physical Uplink Share channel (Physical Uplink Share). Channel (referred to as PUSCH) to send data. Regardless of RA-SDT or CG-SDT, the terminal device can continue to transmit, retransmit or receive.

Mobile station terminated SDT (ie MT-SDT) will be introduced in the future. Generally, terminal equipment can trigger MT-SDT through paging. Specifically, MT-SDT can be triggered by the paging physical downlink control channel (PDCCH), the wake-up signal/channel, or the paging message.

Among them, the PDCCH is used to carry the resource scheduling information allocated to the terminal equipment. Each terminal equipment monitors the PDCCH allocated to itself and obtains the resource scheduling information. It can only transmit data on the time domain and frequency domain resources indicated by the resource scheduling information.

The above-mentioned paging PDCCH can be the PDCCH corresponding to the Type2-PDCCH public search space set (Search Space Set, referred to as SSS), which is generally configured by the paging search space parameter (Paging Search Space).

The wake-up signal/channel can be a wake-up signal (WUS) or a paging early indication (PEI, also known as Early Indication of Paging).

The paging message can be carried by the Physical Downlink Share Channel (PDSCH) scheduled by the paging PDCCH. The paging message may be a Layer 3 (L3) message, also known as an RRC message.

After MT-SDT is triggered, the terminal device must first enter the random access process and then start SDT. The entire process is long, resulting in a large transmission delay of small packet data.

For four-step random access, since the terminal device can confirm that the resource competition is successful or that the competition has been resolved in or after receiving message 4, the terminal device can start MT-SDT in or after receiving message 4. That is to say, when the terminal device confirms that MT-SDT is triggered through paging, the terminal device initiates the random access process and receives the initial transmission (Initial Transmission) of MT-SDT in message 4 or after message 4, and continues Receive the subsequent transmission of MT-SDT (Subsequent Transmission). However, since the terminal device also needs to go through the process of sending message 1, receiving message 2, and sending message 3 from receiving the paging message to receiving message 4, the whole process is long, resulting in a large transmission delay of small packet data.

One possible way is to advance the transmission of MT-SDT, that is, start transmission in message 2, and message 2 is a random access response (Random Access Response, RAR). However, when MT-SDT starts transmitting, the terminal device is not yet sure whether the competition has succeeded or cannot confirm whether the competition has been resolved, which may easily cause MT-SDT to fail.

In order to solve the above problems, for the physical random access channel PRACH (Physical Random Access Channel Access Channel (PRACH) resources, terminal equipment can use Contention Free Random Access (CFRA) resources to transmit small packet data for uplink services.

Therefore, the embodiment of the present application proposes a data transmission method that configures CFRA resources to realize small packet data transmission of downlink services, thereby reducing the MT-SDT delay and improving communication efficiency.

Among them, CFRA resources can be understood as the base station allocating specific random access resources to terminal equipment. Through the random access preamble (Random Access Preamble) and/or PRACH opportunity (Occasion), the base station can identify the specific terminal equipment to achieve communication.

PRACH is the access channel when the terminal device initially initiates a call. When the terminal device initially accesses, it will send an RRC connection establishment request message on the PRACH channel according to the information indicated by the base station to establish the RRC connection. PRACH is the only way for users to perform initial connection, handover, connection re-establishment and re-establish uplink synchronization.

For ease of understanding, the application scenarios applicable to the embodiments of the present application are described below with reference to the example in Figure 1 .

Figure 1 is a schematic diagram of an application scenario provided by an embodiment of the present application. Please refer to Figure 1, including: terminal equipment 101 and base station 102. The base station 102 allocates CFRA resources to the terminal device 101 so that the terminal device 101 can transmit data on the CFRA resources, and the data may be small packet data.

It can be understood that the number of terminal devices 101 and base stations 102 may be multiple, which is not shown in the figure. The terminal device 101 can be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with wireless transceiver functions, a virtual reality (Virtual Reality, VR) terminal device, an augmented reality (Augmented Reality, AR) terminal device, or an industrial control (Industrial) device. Control) wireless terminals, vehicle terminal equipment, wireless terminals in self-driving (Self Driving), roadside equipment (Road Side Unit, RSU), wireless terminal equipment in remote medical (Remote Medical), smart grid (Smart Wireless terminal equipment in Grid), wireless terminal equipment in Transportation Safety, wireless terminal equipment in Smart City (Smart City), wireless terminal equipment in Smart Home (Smart Home), wearable terminal equipment, etc. The terminal equipment 101 involved in the embodiment of this application can also be called a terminal, terminal equipment (User Equipment, UE), access terminal equipment, vehicle terminal, industrial control terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal equipment, mobile equipment, wireless communication equipment, UE agent or UE device, etc. The terminal device 101 may also be fixed or mobile.

The base station 102 is a device with wireless transceiver functions. Including but not limited to: evolutionary base stations (Evolutional Node B, eNB or eNodeB) in LTE, base stations (gNodeB or gNB) or transceiver nodes (Transmission and Receiving Points, TRP) in NR, base stations in subsequent evolution systems, wireless Access node, wireless relay node, wireless return node in the Wireless Fidelity (WiFi) system Transfer nodes, etc. The base station can be: macro base station, micro base station, pico base station, small station, relay station, or balloon station, etc.

The technical solution of the present application and how the technical solution of the present application solves the above technical problems will be described in detail below with specific embodiments. The following specific embodiments may exist independently or may be combined with each other. The same or similar concepts or processes may not be described again in some embodiments. The embodiments of the present application will be described below with reference to the accompanying drawings.

Figure 2 is a schematic flowchart of a data transmission method provided in Embodiment 1 of the present application. The method can be executed by a terminal device. Referring to Figure 2, the method includes the following steps.

S201. Obtain the configuration information of CFRA resources.

The configuration information of CFRA resources can be carried by any of the following information:

(1) Paging message.

(2) Radio Resource Control RRC release message.

When the configuration information of the CFRA resource is carried by the paging message, the terminal device can use the CFRA resource to initiate random access after receiving the paging message, and start receiving MT-SDT in the RAR, thereby reducing the small packet data of the downlink service. Transmission delay.

When the configuration information of the CFRA resource is carried by the RRC release message, the terminal device transitions from the connected state to the idle state or the inactive state after receiving the RRC release message, and can use the CFRA resource to initiate in the idle state or the inactive state. Randomly access and start receiving MT-SDT in RAR, thereby reducing the transmission delay of small packet data in downlink services.

Optionally, the configuration information of the CFRA resource can be carried by the resource configuration parameter (Rach-ConfigDedicated) of the dedicated random access channel. In this way, the resource configuration parameters of the dedicated random access channel can be reused and signaling overhead can be reduced.

Optionally, the paging message may include resource configuration parameters of the dedicated random access channel. When the paging message contains the resource configuration parameters of the dedicated random access channel, the CFRA resource may be carried by the resource configuration parameters of the dedicated random access channel in the paging message.

Optionally, the RRC release message may include resource configuration parameters of the dedicated random access channel. That is to say, when the RRC release message contains the resource configuration parameters of the dedicated random access channel, the CFRA resources may be carried by the resource configuration parameters of the dedicated random access channel in the RRC release message.

The configuration information of the CFRA resource may contain one synchronization signal block list or multiple synchronization signal block lists. Generally speaking, a synchronization signal block can be represented by a synchronization signal block index.

The configuration information of CFRA resources may include random access preamble and/or PRACH opportunities. Generally speaking, PRACH timing can be represented by PRACH Mask Index (PRACH Mask Index), random The access preamble can be represented by a random access preamble index (Random Access Preamble Index). Generally speaking, one random access preamble within the CFRA resource corresponds to one synchronization signal block. Generally speaking, one PRACH opportunity in the CFRA resource corresponds to a group of synchronization signal blocks.

The terminal equipment may select a synchronization signal block and its corresponding random access preamble and/or PRACH opportunity as resources for MT-SDT.

It should be noted that CFRA resources can be divided into multiple parts, each part corresponding to a synchronization signal block. For example, CFRA resources can be divided into multiple random access preambles, and each random access preamble corresponds to a synchronization signal block. Among them, the synchronization signal block index can be configured through the synchronization signal block resource list (SSB-ResourceList), and the random access preamble can be configured through the parameter random access preamble index.

Optionally, the synchronization signal block list has a corresponding relationship with the physical random access channel timing mask index. That is to say, one synchronization signal block list corresponds to one physical random access channel timing mask index. When a synchronization signal block can be mapped to multiple PRACH opportunities, the base station can indicate that all synchronization signal blocks in the synchronization signal block list are mapped to the same or several PRACH opportunities, and the terminal device can determine that it is the PRACH opportunity indicated by the base station. This avoids excessive blind detection of PRACH opportunities by the base station. Among them, the PRACH opportunity can be configured through the PRACH Occasion Mask Index (PRACH Occasion Mask Index).

A CFRA resource set can include multiple CFRA resources. Through the CFRA resource set, the base station can further instruct the terminal device to select a CFRA resource for MT-SDT resources.

For example, the PRACH opportunity mask index has 4 bits, corresponding to 16 code points. The 16 code points include all PRACH opportunity indexes and 8 PRACH opportunity indexes (one synchronization signal block can correspond to up to 8 PRACH opportunities), all even PRACH opportunity indexes, all odd PRACH opportunity indexes and 5 reserved code points, that is, a total of 16. Among them, the corresponding meaning of the PRACH opportunity mask index can be seen in the table (Table) in standard 38.321 7.4-1.

S202. Transmit data on the CFRA resource according to the configuration information of the CFRA resource.

After the terminal device obtains the CFRA resource, it can receive small packet data of the downlink service on the CFRA resource to realize downlink data transmission between the terminal device and the base station.

In this embodiment, the terminal device obtains the configuration information of the CFRA resource sent by the base station and transmits data on the CFRA resource according to the configuration information, which effectively reduces the transmission delay of small packet data in downlink services and improves communication efficiency.

When the base station configures CFRA resources for the terminal device, it can further limit whether the CFRA resources are available, so that the terminal device uses the CFRA resources according to the instruction information of the base station. Below, through Embodiment 2 Explain this situation.

Figure 3 is a schematic flowchart of another data transmission method provided in Embodiment 2 of the present application. This method can be executed by a terminal device. Referring to Figure 3, the method includes the following steps.

S301. Obtain the configuration information of CFRA resources.

(1)SIB message.

(2) Paging message.

(3)RRC release message.

When the configuration information of the CFRA resource is carried by the SIB message, all terminal devices in the idle state or inactive state can use the CFRA resource.

When the configuration information of the CFRA resource is carried by the paging message, all terminal devices in the idle state or inactive state can update the configuration information of the CFRA resource when receiving the paging message, and can use the CFRA resource. After receiving the paging message, the terminal device can use the CFRA resource to initiate random access and start receiving MT-SDT in the RAR, thereby reducing the transmission delay of small packet data for downlink services.

When the configuration information of the CFRA resource is carried by the RRC release message, all terminal devices in the idle state or inactive state can update the configuration information of the CFRA resource and can use the CFRA resource when receiving the RRC release message. After receiving the RRC release message, the terminal device uses the CFRA resource to initiate random access and starts receiving MT-SDT in the RAR, thereby reducing the transmission delay of small packet data for downlink services.

Optionally, the configuration information of CFRA resources can be carried by the resource configuration parameters of the dedicated random access channel. In this way, the dedicated random access channel resource configuration parameters can be reused and signaling overhead can be reduced.

Optionally, the configuration information of the CFRA resource may include one or more synchronization signal block lists, and there is a corresponding relationship between the synchronization signal block list and the physical random access channel timing mask index. For a detailed description of the configuration information of the CFRA resource including one synchronization signal block sequence or multiple synchronization signal block lists, please refer to Embodiment 1.

It should be noted that when the configuration information of CFRA resources contains multiple synchronization signal block lists, the base station can instruct the terminal device through the indication information to select a synchronization signal block beam and its corresponding CFRA resource as a resource for receiving MT-SDT. .

S302. Determine whether CFRA resources are available according to the indication information.

The terminal device may also receive indication information sent by the base station, and the indication information is used to indicate whether the CFRA resource is available. That is to say, after the terminal device obtains the configuration information of the CFRA resource, it cannot use the CFRA resource. It needs to determine whether the CFRA resource is available based on the indication information. The base station uses the indication information to dynamically instruct the terminal device whether the CFRA resource is available. , reducing network resource overhead and improving flexibility.

Instruction information can be carried by any of the following information:

(1) Wake-up signal.

(2)PDCCH command.

(3) Paging PDCCH.

(4) Paging message.

(5)SDT related PDCCH.

When the indication information is carried by the wake-up signal, the terminal device in the power saving mode (PSM) can monitor the wake-up signal, so that the terminal device can switch from the power saving mode to MT-SDT reception. By using CFRA resources, both It ensures the terminal equipment saves power and ensures the low latency of MT-SDT. Among them, the energy-saving mode is a mode in which the terminal equipment is in extremely low power consumption.

When the indication information is carried by the PDCCH command, the PDCCH command can instruct a terminal device to use a CFRA resource in a UE Specific manner, avoiding sharing, and the terminal device does not need to decode the PDSCH (because the PDCCH command does not have PDSCH Scheduling information), the method specified by the terminal equipment may be, for example: cell radio network temporary identifier (Cell-Radio Network Temporary Identifier, C-RNTI) scrambling cyclic redundancy check code (Cyclic Redundancy Check, CRC).

When the indication information is carried by the paging PDCCH, the terminal device in Deep Sleep can monitor the wake-up signal, so that the terminal device can switch from Deep Sleep to MT-SDT reception. By using CFRA resources, it ensures that the terminal The equipment saves power and ensures the low latency of MT-SDT. The above-mentioned deep sleep is also a state in which the terminal device is in a low-power consumption state, but it consumes slightly more power than the energy-saving mode, but can wake up faster. The advantage of the indication information carried by the paging PDCCH is that the terminal equipment does not need to decode the PDSCH to receive the indication information, but for the terminal equipment group (UE Group) or the terminal equipment subgroup (UE Subgroup), a group of terminal equipment can be shared CFRA resources. Generally speaking, eventually An end device subgroup is a subset of an end device group. Generally speaking, the terminal equipment group is a group of terminal equipment corresponding to the paging occasion (Paging Occasion, PO), also known as the paging occasion group (PO Group), paging group (Paging Group) or paging terminal group (Paging UE Group). Generally speaking, a terminal device subgroup is a subset of a group of terminal devices corresponding to a paging occasion.

When the indication information is carried by the paging message, similarly, the terminal device in deep sleep can monitor the wake-up signal, so that the terminal device can switch from deep sleep to MT-SDT reception. By using CFRA resources, it ensures that the terminal device It saves power and ensures the low latency of MT-SDT. The advantage of the instruction information being carried in the paging message is that the information in the paging message can instruct a certain terminal device to use a CFRA resource, which avoids sharing, but requires the terminal device to decode the PDSCH.

When the indication information is carried by the SDT-related PDCCH, the SDT-related PDCCH can instruct a terminal device to use a CFRA resource in a manner specified by the terminal device, avoiding sharing, and in the SDT service, the terminal device generally needs to monitor the SDT-related PDCCH and obtain the usefulness indication without extra power consumption. The method specified by the terminal device may be, for example: C-RNTI scrambling CRC.

Optionally, the SDT-related PDCCH includes the PDCCH corresponding to the SDT search space. Generally, the terminal device can receive the SDT search space in a specified manner (such as using C-RNTI to scramble the CRC), so it can indicate a certain terminal. The device uses a CFRA resource, avoiding sharing.

Optionally, the search space of SDT can be configured by any of the following information:

(1) SDT search space parameters (SDT-SearchSpace).

(2) SDT configures authorized search space parameters (SDT-CG-SearchSpace).

(3) Search space parameters used by MT-SDT.

When the SDT search space is configured by SDT search space parameters or SDT configuration authorization search space parameters, since these two parameters are existing parameters (for MO-SDT), they can be used directly, reducing signaling overhead. Generally speaking, SDT search space parameters can be used to configure the Common Search Space (CSS) in RA-SDT or CG-SDT, and SDT configuration authorized search space parameters can be used to configure terminal device designation in CG-SDT. Search space (UE specific Search Space, USS).

The search space of SDT can also be configured by the search space parameters used by MT-SDT.

S303. When it is determined that the CFRA resource is available, transmit data on the CFRA resource according to the configuration information of the CFRA resource.

After the terminal device obtains the CFRA resource and determines that the CFRA resource is available, it can receive small packet data of the downlink service on the CFRA resource to realize downlink data transmission between the terminal device and the base station.

In a possible implementation, when the indication information indicates that CFRA resources are available, the CFRA resources are available within the first time window, so that the CFRA resources are valid within the first time window, that is, the CFRA resources can be released in time, Reduces CFRA resource overhead.

The first time window includes a window starting position and a window length. The window starting position may be the end symbol of a signal or channel carrying indication information, or the window starting position may be the end of a signal or channel carrying indication information. The first symbol of the slot, the window length can be configured by high-level parameters. This enables both the base station and the terminal device to reach a consensus on the starting position of the window.

In another possible implementation, when the indication information indicates that the CFRA resource is available, the CFRA resource is available within the running time of the first timer, so that the CFRA resource is valid within the first timer running time, that is, the CFRA resource is available. CFRA resources can be released in time, reducing CFRA resource overhead.

Wherein, the first timer starts running at the end symbol of the signal or channel carrying the indication information, or the first timer starts running at the first symbol of the end time slot of the signal or channel carrying the indication information, The running time of the first timer is configured by high-level parameters. This enables both the base station and the terminal device to reach a consensus on the starting position of the window.

In this embodiment, the terminal device obtains the configuration information of the CFRA resource sent by the base station, and then determines whether the CFRA resource is available according to the instruction information sent by the base station. When it is determined that the CFRA resource is available, the terminal device can transmit on the CFRA resource according to the configuration information. data, effectively reducing the transmission delay of small packet data in downlink services, while reducing network resource overhead and improving flexibility.

When acquiring CFRA resources, the terminal device may monitor the SDT-related PDCCH at a preset time to obtain transmission resources. This situation will be described below through Embodiment 3.

Embodiment 3 of the present application provides another data transmission method, which can be executed by a terminal device. The method includes the following steps.

The terminal device can monitor the SDT-related PDCCH after the first moment, which can achieve the purpose of saving power. It is understandable that the base station can also start sending the SDT-related PDCCH after the first moment. Both the base station and the terminal device reach a consensus, which improves the efficiency. Communication efficiency.

(1) SDT search space parameters.

(2) SDT configures authorized search space parameters.

(3) Search space parameters used by MT-SDT.

For the relevant description of the above three types of information, please refer to Embodiment 2, which will not be described again here.

Optionally, the first moment may be the first symbol of the PDCCH related to the SDT after the PRACH is sent. After the terminal equipment sends the PRACH on a certain PRACH opportunity, it waits for the first symbol of the subsequent SDT-related PDCCH (monitoring opportunity), and uses this symbol as the first moment to start monitoring the SDT-related PDCCH. It is understandable that the base station also This symbol is used as the first moment to start transmitting the SDT-related PDCCH.

Among them, the first symbol of the SDT-related PDCCH can be the first symbol of the earliest CORESET used to carry the SDT-related PDCCH. When different SDT-related PDCCHs are associated with different CORESETs, the first symbol of the earliest CORESET Symbols serve as the first moment to allow the base station and terminal equipment to reach a consensus and improve communication efficiency.

Optionally, the terminal equipment monitors the PDCCH related to SDT, can obtain the resource scheduling information carried on the PDCCH, and receives the small packet data of the downlink service on the time and frequency domain resources indicated by the resource scheduling information, thereby realizing the downlink communication between the terminal equipment and the base station. data transmission.

In this embodiment, the terminal device can monitor the SDT-related PDCCH after the first moment to realize the transmission of small packet data of the downlink service and at the same time achieve the purpose of power saving.

Next, through Embodiment 4 to Embodiment 6, the data transmission method in which the execution subject is the base station will be described.

Embodiment 4 of the present application provides another data transmission method, which can be executed by a base station.

The base station can send the configuration information of CFRA resources to the terminal device, so that the terminal device can use the CFRA resources directly after receiving the CFRA resources sent by the base station.

Optionally, the base station can send the CFRA resource configuration information to the terminal device by carrying it in any of the following information:

(1) Paging message.

(2) Radio Resource Control RRC release message.

The description of the above two types of information and the configuration information of the CFRA resource will not be described again in this embodiment, and reference may be made to Embodiment 1.

In this embodiment, the base station can send the configuration information of the CFRA resource to the terminal device, so that the terminal device can transmit data on the CFRA resource according to the configuration information, effectively reducing the transmission delay of small packet data in downlink services and improving communication. efficiency.

Figure 4 is a schematic flowchart of another data transmission method provided in Embodiment 5 of the present application. This method can be executed by a base station. Referring to Figure 5, the method includes the following steps.

S401. Send configuration information of CFRA resources.

(1)SIB message.

(2) Paging message.

(3)RRC release message.

The description of the above three types of information and the configuration information of the CFRA resource will not be described again in this embodiment, and reference can be made to Embodiment 2.

S402. Send instruction information.

The base station may also send indication information to the terminal device, where the indication information is used to indicate whether the CFRA resource is available, so that the terminal device determines whether the CFRA resource is available based on the indication information.

Optionally, the base station can send the indication information to the terminal device by carrying it in any of the following information:

(1) Wake-up signal.

(2)PDCCH command.

(3) Paging PDCCH.

(4)Paging message

(5)SDT related PDCCH.

The description of the above five types of information will not be repeated in this embodiment. Please refer to Embodiment 2.

In this embodiment, the base station sends the configuration information of the CFRA resource to the terminal device, and sends the indication information of whether the CFRA resource is available to the user, so that when the terminal device determines that the CFRA resource is available based on the indication information, the terminal device can use the configuration information to determine whether the CFRA resource is available. Transmitting data on CFRA resources effectively reduces the transmission delay of small packet data for downlink services, while reducing network resource overhead and improving flexibility.

Embodiment 6 of the present application provides another data transmission method, which can be executed by the base station.

The base station may start sending the SDT-related PDCCH after the first moment, and the terminal device also starts monitoring the SDT-related PDCCH after the first moment. This enables both base stations and terminal equipment to reach a consensus and improves communication efficiency.

Optionally, the SDT-related PDCCH includes the PDCCH corresponding to the SDT search space. The SDT search space can be configured by any of the following information:

(1) SDT search space parameters.

(2) SDT configures authorized search space parameters.

(3) Search space parameters used by MT-SDT.

The description of the above three types of information and the configuration information of the CFRA resource will not be described again in this embodiment, and reference can be made to the above method embodiment.

Optionally, the first moment may be the first symbol of the PDCCH related to the SDT after the PRACH is sent. The relevant description of the first moment will not be described again in this embodiment, and reference may be made to the above method embodiment.

In this embodiment, the base station sends the SDT-related PDCCH to the terminal device after the first moment to realize the transmission of small packet data of the downlink service and at the same time achieve the purpose of power saving.

FIG. 5 is a schematic structural diagram of a data transmission device provided in Embodiment 7 of the present application. The data transmission device 50 may be a chip or a chip module. Referring to Figure 5, the device 50 includes: an acquisition module 501.

The acquisition module 501 is used to obtain the configuration of CFRA resources.

Optional, the configuration information is any of the following:

Paging message.

RRC release message.

Optionally, the paging message or RRC release message contains resource configuration parameters of the dedicated random access channel.

Optionally, the configuration information includes one or more synchronization signal block lists.

Optionally, the synchronization signal block list has a corresponding relationship with the physical random access channel timing mask index.

The data transmission device 50 provided in the embodiment of the present application can execute the technical solution shown in the above method embodiment. Its implementation principles and beneficial effects are similar and will not be described again this time.

FIG. 6 is a schematic structural diagram of a data transmission device provided in Embodiment 8 of the present application. The data transmission device 60 may be a chip or a chip module. Referring to Figure 6, the device 60 includes: an acquisition module 601 and a determination module 602.

Obtaining module 601 is used to obtain the configuration of contention-free random access CFRA resources.

Determining module 602 is used to determine whether CFRA resources are available according to the indication information.

Optional, the configuration information is any of the following:

System information block SIB message.

Paging message.

Radio Resource Control RRC release message.

Optionally, the paging message or RRC release message contains the resource configuration parameters of the dedicated random access channel.

Optionally, the indication information is carried in any of the following ways:

Wake-up signal.

Physical downlink control channel PDCCH command.

Paging PDCCH.

Paging message.

Small packet data transmission SDT related PDCCH.

Optionally, the SDT-related PDCCH includes the PDCCH corresponding to the SDT search space.

Optionally, the SDT search space is configured by at least one of the following parameters:

SDT search space parameters.

SDT configures authorized search space parameters.

Optionally, when the indication information indicates that CFRA resources are available, the CFRA resources are available within the first time window.

Optionally, the first time window includes the window starting position and window length.

Optionally, the starting position of the window is the end symbol of the signal or channel carrying the indication information. or,

The starting position of the window is the first symbol of the end slot of the signal or channel carrying the indication information.

Optionally, the window length is configured by high-level parameters.

Optionally, when the indication information indicates that the CFRA resource is available, the CFRA resource is available within the running time of the first timer.

Optionally, the first timer starts running at the end symbol of the signal or channel carrying the indication information. or,

The first timer starts running at the first symbol of the end time slot of the signal or channel carrying the indication information.

Optionally, the running time of the first timer is configured by high-level parameters.

Optionally, the configuration of CFRA resources includes one or more synchronization signal block lists.

Optionally, there is a corresponding relationship between the synchronization signal block list and the physical random access channel timing mask index.

A data transmission device 70 provided by the embodiment of the present application can execute the technical solution shown in the above method embodiment. Its implementation principles and beneficial effects are similar and will not be described again this time.

FIG. 7 is a schematic structural diagram of a data transmission device provided in Embodiment 9 of the present application. The data transmission device 70 may be a chip or a chip module. Referring to Figure 7, the device 70 includes: a monitoring module 701.

The monitoring module 701 is configured to monitor the physical downlink control channel PDCCH related to the small packet data transmission SDT after the first moment.

Optionally, the search space of SDT is configured by at least one of the following parameters:

SDT search space parameters.

SDT configures authorized search space parameters.

Optionally, the first moment is the first symbol of the SDT-related PDCCH after the physical random access channel PRACH is sent.

Optionally, the first symbol of the SDT-related PDCCH is the first symbol of the earliest control resource set CORESET used to carry the SDT-related PDCCH.

A data transmission device 80 provided by the embodiment of the present application can execute the technical solution shown in the above method embodiment. Its implementation principles and beneficial effects are similar and will not be described again this time.

FIG. 8 is a schematic structural diagram of a data transmission device provided in Embodiment 10 of the present application. The data transmission device 80 may be a chip or a chip module. Referring to Figure 8, the device 80 includes: a sending module 801.

The sending module 801 is configured to send configuration information of contention-free random access CFRA resources.

Optional, the configuration information is any of the following:

Paging message.

Radio Resource Control RRC release message.

Figure 9 is a schematic structural diagram of a data transmission device provided in Embodiment 11 of the present application. The data transmission device 90 may be a chip or a chip module. Referring to Figure 9, the device 90 includes: a first sending module 901 and a second sending module 1002.

The first sending module 901 is configured to send configuration information of contention-free random access CFRA resources.

The second sending module 902 is used to send indication information.

Optional, the configuration information is any of the following:

System information block SIB message.

Paging message.

Radio Resource Control RRC release message.

Optionally, the indication information is carried in any of the following ways:

Wake-up signal.

Physical downlink control channel PDCCH command.

Paging PDCCH.

Paging message.

Small packet data transmission SDT related PDCCH.

SDT search space parameters.

SDT configures authorized search space parameters.

Optionally, the window length is configured by high-level parameters.

The data transmission device 100 provided by the embodiment of the present application can execute the technical solution shown in the above method embodiment. Its implementation principles and beneficial effects are similar and will not be described again this time.

FIG. 10 is a schematic structural diagram of a data transmission device provided in Embodiment 12 of the present application. The data transmission device 100 may be a chip or a chip module. Referring to Figure 10, the device 100 includes: a sending module 1001.

The sending module 1001 is used to send small packet data to transmit SDT-related physical conditions after the first moment. Line control channel PDCCH.

SDT search space parameters.

SDT configures authorized search space parameters.

Optionally, the first moment is the first symbol of the SDT-related PDCCH after receiving the physical random access channel PRACH.

The data transmission device 110 provided by the embodiment of the present application can execute the technical solution shown in the above method embodiment. Its implementation principles and beneficial effects are similar and will not be described again this time.

Figure 11 is a schematic structural diagram of an electronic device provided in Embodiment 13 of the present application. The electronic device may be a terminal device. As shown in Figure 11, the electronic device 110 may include: at least one processor 1101 and a memory 1102.

Memory 1102 is used to store programs. Specifically, the program may include program code, which includes computer operating instructions.

The memory 1102 may include high-speed read-only memory (Read-Only Memory, ROM), and may also include non-volatile memory (Non-Volatile Memory), such as at least one disk memory.

The processor 1101 is configured to execute computer execution instructions stored in the memory 1102 to implement the method described in the foregoing method embodiments. Among them, the processor 1101 may be a central processing unit (Central Processing Unit, CPU), or a specific integrated circuit (Application Specific Integrated Circuit, ASIC), or one or more integrated circuits configured to implement embodiments of the present application. .

Optionally, the electronic device 110 may also include: a communication interface 1103. In terms of specific implementation, if the communication interface 1103, the memory 1102 and the processor 1101 are implemented independently, the communication interface 1103, the memory 1102 and the processor 1101 can be connected to each other through a bus and complete mutual communication. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. The bus can be divided into address bus, data bus, control bus, etc., but it does not mean that there is only one bus or one type of bus.

Optionally, in terms of specific implementation, if the communication interface 1103, the memory 1102 and the processor 1101 are integrated on one chip, the communication interface 1103, the memory 1102 and the processor 1101 can be implemented through Communication is accomplished via the internal interface.

The electronic device 110 may be a chip, a module, an IDE, etc.

The electronic device of this embodiment can be used to execute the technical solution shown in Embodiment 1 of the above method. The specific implementation methods and technical effects are similar and will not be described again here.

Figure 12 is a schematic structural diagram of an electronic device provided in Embodiment 14 of the present application. The electronic device may be a terminal device. As shown in Figure 12, the electronic device 120 may include: at least one processor 1201 and a memory 1202.

Memory 1202 is used to store programs. Specifically, the program may include program code, which includes computer operating instructions.

Memory 1202 may include high-speed RAM memory, and may also include non-volatile memory, such as at least one disk memory.

The processor 1201 is configured to execute computer execution instructions stored in the memory 1202 to implement the method described in the foregoing method embodiments. The processor 1201 may be a CPU, an ASIC, or one or more integrated circuits configured to implement embodiments of the present application.

Optionally, the electronic device 120 may also include: a communication interface 1203. In terms of specific implementation, if the communication interface 1203, the memory 1202 and the processor 1201 are implemented independently, the communication interface 1203, the memory 1202 and the processor 1201 can be connected to each other through a bus and complete mutual communication. The bus can be an ISA bus, a PCI bus or an EISA bus, etc. The bus can be divided into address bus, data bus, control bus, etc., but it does not mean that there is only one bus or one type of bus.

Optionally, in terms of specific implementation, if the communication interface 1203, the memory 1202 and the processor 1201 are integrated on one chip, the communication interface 1203, the memory 1202 and the processor 1201 can complete communication through the internal interface.

The electronic device 120 may be a chip, a module, an IDE, etc.

The electronic device of this embodiment can be used to execute the technical solution shown in the second embodiment of the above method. The specific implementation methods and technical effects are similar and will not be described again here.

Figure 13 is a schematic structural diagram of an electronic device provided in Embodiment 15 of the present application. The electronic device may be a terminal device. As shown in Figure 13, the electronic device 130 may include: at least one processor 1301 and a memory 1302.

Memory 1302 is used to store programs. Specifically, the program may include program code, which includes computer operating instructions.

Memory 1302 may include high-speed RAM memory, and may also include non-volatile memory, such as at least one disk memory.

The processor 1301 is configured to execute computer execution instructions stored in the memory 1302 to implement the method described in the foregoing method embodiments. The processor 1301 may be a CPU, an ASIC, or one or more integrated circuits configured to implement embodiments of the present application.

Optionally, the electronic device 130 may also include: a communication interface 1303. In terms of specific implementation, if the communication interface 1303, the memory 1302 and the processor 1301 are implemented independently, the communication interface 1303, the memory 1302 and the processor 1301 can be connected to each other through a bus and complete mutual communication. The bus can be an ISA bus, a PCI bus or an EISA bus, etc. The bus can be divided into address bus, data bus, control bus, etc., but it does not mean that there is only one bus or one type of bus.

Optionally, in terms of specific implementation, if the communication interface 1303, the memory 1302 and the processor 1301 are integrated on one chip, the communication interface 1303, the memory 1302 and the processor 1301 can complete communication through the internal interface.

The electronic device 130 may be a chip, a module, an IDE, etc.

The electronic device of this embodiment can be used to execute the technical solution shown in the third method embodiment. The specific implementation methods and technical effects are similar and will not be described again here.

Figure 14 is a schematic structural diagram of an electronic device provided in Embodiment 16 of the present application. The electronic device may be a base station. As shown in Figure 14, the electronic device 140 may include: at least one processor 1401 and a memory 1402.

Memory 1402 is used to store programs. Specifically, the program may include program code, which includes computer operating instructions.

The memory 1402 may include high-speed RAM memory, and may also include non-volatile memory (non-volatile memory), such as at least one disk memory.

The processor 1401 is configured to execute computer execution instructions stored in the memory 1402 to implement the method described in the foregoing method embodiments. Among them, the processor 1401 may be a central processing unit (Central Processing Unit, referred to as CPU), or a specific integrated circuit (Application Specific Integrated Circuit, referred to as ASIC), or a device configured to implement the embodiments of the present application. Multiple integrated circuits.

Optionally, the electronic device 140 may also include: a communication interface 1403. In terms of specific implementation, if the communication interface 1403, the memory 1402 and the processor 1401 are implemented independently, the communication interface 1403, the memory 1402 and the processor 1401 can be connected to each other through a bus and complete mutual communication. The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. The bus can be divided into Address bus, data bus, control bus, etc., but it does not mean that there is only one bus or one type of bus.

Optionally, in terms of specific implementation, if the communication interface 1403, the memory 1402 and the processor 1401 are integrated on one chip, the communication interface 1403, the memory 1402 and the processor 1401 can complete communication through the internal interface.

The electronic device 140 may be a chip, a module, an IDE, etc.

The electronic device of this embodiment can be used to execute the technical solution shown in Embodiment 4 of the above method. The specific implementation methods and technical effects are similar and will not be described again here.

Figure 15 is a schematic structural diagram of an electronic device provided in Embodiment 17 of the present application. The electronic device may be a base station. As shown in Figure 15, the electronic device 150 may include: at least one processor 1501 and a memory 1502.

Memory 1502 is used to store programs. Specifically, the program may include program code, which includes computer operating instructions.

The memory 1502 may include high-speed RAM memory, and may also include non-volatile memory (non-volatile memory), such as at least one disk memory.

The processor 1501 is configured to execute computer execution instructions stored in the memory 1502 to implement the method described in the foregoing method embodiments. Among them, the processor 1501 may be a central processing unit (Central Processing Unit, referred to as CPU), or a specific integrated circuit (Application Specific Integrated Circuit, referred to as ASIC), or a device configured to implement the embodiments of the present application. Multiple integrated circuits.

Optionally, the electronic device 150 may also include: a communication interface 1503. In terms of specific implementation, if the communication interface 1503, the memory 1502 and the processor 1501 are implemented independently, the communication interface 1503, the memory 1502 and the processor 1501 can be connected to each other through a bus and complete mutual communication. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. The bus can be divided into address bus, data bus, control bus, etc., but it does not mean that there is only one bus or one type of bus.

Optionally, in terms of specific implementation, if the communication interface 1503, the memory 1502 and the processor 1501 are integrated on one chip, the communication interface 1503, the memory 1502 and the processor 1501 can complete communication through the internal interface.

The electronic device 150 may be a chip, a module, an IDE, etc.

The electronic device of this embodiment can be used to execute the technical solution shown in the fifth method embodiment. The specific implementation methods and technical effects are similar and will not be described again here.

Figure 16 is a schematic structural diagram of an electronic device provided in Embodiment 18 of the present application. The electronic device may be a base station. As shown in Figure 16, the electronic device 160 may include: at least one processor 1601 and a memory 1602.

Memory 1602 is used to store programs. Specifically, the program may include program code, which includes computer operating instructions.

Memory 1602 may include high-speed RAM memory, and may also include non-volatile memory, such as at least one disk memory.

The processor 1601 is configured to execute computer execution instructions stored in the memory 1602 to implement the method described in the foregoing method embodiments. The processor 1601 may be a CPU, an ASIC, or one or more integrated circuits configured to implement embodiments of the present application.

Optionally, the electronic device 160 may also include: a communication interface 1603. In terms of specific implementation, if the communication interface 1603, the memory 1602 and the processor 1601 are implemented independently, the communication interface 1603, the memory 1602 and the processor 1601 can be connected to each other through a bus and complete mutual communication. The bus can be an ISA bus, a PCI bus or an EISA bus, etc. The bus can be divided into address bus, data bus, control bus, etc., but it does not mean that there is only one bus or one type of bus.

Optionally, in terms of specific implementation, if the communication interface 1603, the memory 1602 and the processor 1601 are integrated on one chip, the communication interface 1603, the memory 1602 and the processor 1601 can complete communication through the internal interface.

The electronic device 160 may be a chip, a module, an IDE, etc.

The electronic device of this embodiment can be used to execute the technical solution shown in the sixth method embodiment. The specific implementation methods and technical effects are similar and will not be described again here.

Embodiment 19 of the present application provides a computer-readable storage medium. The computer-readable storage medium may include: U disk, mobile hard disk, ROM, random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc. A medium that can store a computer program. Specifically, the computer readable storage medium stores a computer program. When the computer program is executed by a processor, it is used to implement the technical solutions shown in the above method embodiments. Specific implementation methods and technical effects Similar, we won’t go into details here.

Embodiment 20 of the present application provides a computer program product, including a computer program. When the computer program is executed by a processor, the technical solution shown in the above method embodiment is implemented. The specific implementation method and technical effect are similar and will not be described again here.

Embodiment 21 of the present application provides a chip. A computer program is stored on the chip. The computer program When the program is executed by the chip, the method shown in the above method embodiment is implemented. The chip can also be a chip module.

Other embodiments of the present application will be readily apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary technical means in the technical field that are not disclosed in this application. . It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.

It is to be understood that the present application is not limited to the precise structures described above and illustrated in the accompanying drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims

A data transmission method, characterized by including:

Obtain the configuration information of contention-free random access CFRA resources.
The method according to claim 1, characterized in that the configuration information is any one of the following:

paging message;

Radio Resource Control RRC release message.
The method according to claim 2, characterized in that the paging message or the RRC release message contains resource configuration parameters of a dedicated random access channel.
The method according to any one of claims 1-3, characterized in that the configuration information includes one or more synchronization signal block lists.
The method according to claim 4, characterized in that the synchronization signal block list has a corresponding relationship with a physical random access channel timing mask index.
A data transmission method, characterized by including:

Obtain the configuration information of contention-free random access CFRA resources;

Determine whether the CFRA resource is available according to the indication information.
The method according to claim 6, characterized in that the configuration information is any one of the following:

System information block SIB message;

paging message;

Radio Resource Control RRC release message.
The method according to claim 7, characterized in that the paging message or the RRC release message contains resource configuration parameters of a dedicated random access channel.
The method according to claim 6, characterized in that the indication information is carried in any one of the following ways:

wake-up signal;

Physical downlink control channel PDCCH command;

Paging PDCCH;

paging message;

Small packet data transmission SDT related PDCCH.
The method according to claim 9, characterized in that the SDT-related PDCCH Includes the PDCCH corresponding to the search space of the SDT.
The method according to claim 10, characterized in that the search space of the SDT is configured by at least one of the following parameters:

SDT search space parameters;

SDT configures authorized search space parameters;

Search space parameters used by MT-SDT for small packet data transmission in downlink services.
The method according to any one of claims 6 to 11, characterized in that when the indication information indicates that the CFRA resource is available, the CFRA resource is available within the first time window.
The method of claim 12, wherein the first time window includes a window starting position and a window length.
The method according to claim 13, characterized in that:

The starting position of the window is the end symbol of the signal or channel carrying the indication information; or,

The window starting position is the first symbol of the end time slot of the signal or channel carrying the indication information.
The method according to claim 13, characterized in that the window length is configured by high-level parameters.
The method according to any one of claims 6 to 11, characterized in that when the indication information indicates that the CFRA resource is available, the CFRA resource is available within the running time of the first timer.
The method according to claim 16, characterized in that:

The start running time of the first timer is at the end symbol of the signal or channel carrying the indication information; or,

The start running time of the first timer is the first symbol of the end time slot of the signal or channel carrying the indication information.
The method according to claim 16, characterized in that the running time of the first timer is configured by high-level parameters.
The method according to any one of claims 6 to 18, characterized in that the configuration of the CFRA resource includes one or more synchronization signal block lists.
The method according to claim 19, characterized in that there is a corresponding relationship between the synchronization signal block list and the physical random access channel timing mask index.
A data transmission method, characterized by including:

After the first moment, monitor the physical downlink control channel PDCCH related to small packet data transmission SDT.
The method according to claim 21, characterized in that the SDT-related PDCCH includes a PDCCH corresponding to a search space of SDT.
The method according to claim 22, characterized in that the search space of the SDT is configured by at least one of the following parameters:

SDT search space parameters;

SDT configures authorized search space parameters;

Search space parameters used by MT-SDT for small packet data transmission in downlink services.
The method according to any one of claims 21 to 23, characterized in that the first moment is the first symbol of the SDT-related PDCCH after the physical random access channel PRACH is transmitted.
The method according to claim 24, characterized in that the first symbol of the SDT-related PDCCH is the first symbol of the earliest control resource set CORESET used to carry the SDT-related PDCCH.
A data transmission method, characterized by including:

Send configuration information for random access CFRA resources without contention.
The method according to claim 26, characterized in that the configuration information is any one of the following:

paging message;

Radio Resource Control RRC release message.
The method according to claim 27, characterized in that the paging message or the RRC release message contains resource configuration parameters of a dedicated random access channel.
The method according to any one of claims 26 to 28, characterized in that the configuration information includes one or more synchronization signal block lists.
The method according to claim 29, characterized in that the synchronization signal block list has a corresponding relationship with a physical random access channel timing mask index.
A data transmission method, characterized by including:

Send configuration information for random access to CFRA resources without competition;

Send instructions.
The method according to claim 31, characterized in that the configuration information is any one of the following:

System information block SIB message;

paging message;

Radio Resource Control RRC release message.
The method according to claim 32, characterized in that the paging message or the RRC release message contains resource configuration parameters of a dedicated random access channel.
The method according to claim 31, characterized in that the indication information is carried in any of the following ways:

wake-up signal;

Physical downlink control channel PDCCH command;

Paging PDCCH;

paging message;

Small packet data transmission SDT related PDCCH.
The method according to claim 34, wherein the SDT-related PDCCH includes a PDCCH corresponding to the SDT search space.
The method according to claim 35, characterized in that the search space of the SDT is configured by at least one of the following parameters:

SDT search space parameters;

SDT configures authorized search space parameters;

Search space parameters used by MT-SDT for small packet data transmission in downlink services.
The method according to any one of claims 31 to 36, characterized in that when the indication information indicates that the CFRA resource is available, the CFRA resource is available within the first time window.
The method of claim 37, wherein the first time window includes a window starting position and a window length.
The method according to claim 38, characterized in that:

The starting position of the window is the end symbol of the signal or channel carrying the indication information; or,

The window starting position is the first symbol of the end time slot of the signal or channel carrying the indication information.
The method of claim 39, wherein the window length is configured by high-level parameters.
The method according to any one of claims 31 to 36, characterized in that when the indication information indicates that the CFRA resource is available, the CFRA resource is available within the running time of the first timer.
The method according to claim 41, characterized in that the start running time of the first timer is at the end symbol of the signal or channel carrying the indication information; or,

The start running time of the first timer is the first symbol of the end time slot of the signal or channel carrying the indication information.
The method according to claim 42, characterized in that the running time of the first timer is configured by high-level parameters.
The method according to any one of claims 31-43, wherein the CFRA information The source's configuration contains one or more sync block lists.
The method according to claim 44, characterized in that there is a corresponding relationship between the synchronization signal block list and the physical random access channel timing mask index.
A data transmission method, characterized by including:

After the first moment, small packet data is sent to transmit the SDT-related physical downlink control channel PDCCH.
The method according to claim 46, wherein the SDT-related PDCCH includes a PDCCH corresponding to the SDT search space.
The method according to claim 47, characterized in that the search space of the SDT is configured by at least one of the following parameters:

SDT search space parameters;

SDT configures authorized search space parameters;

Search space parameters used by MT-SDT for small packet data transmission in downlink services.
The method according to any one of claims 46 to 48, characterized in that the first moment is the first symbol of the SDT-related PDCCH after receiving the physical random access channel PRACH.
The method according to claim 49, characterized in that the first symbol of the SDT-related PDCCH is the first symbol of the earliest control resource set CORESET used to carry the SDT-related PDCCH.
A data transmission device, characterized by including:

The acquisition module is used to obtain the configuration of contention-free random access CFRA resources.
A data transmission device, characterized by including:

The acquisition module is used to obtain the configuration of random access CFRA resources without competition;

A determining module, configured to determine whether the CFRA resource is available according to the indication information.
A data transmission device, characterized by including:

The monitoring module is used to monitor the physical downlink control channel PDCCH related to the small packet data transmission SDT after the first moment to obtain data transmission resources.
A data transmission device, characterized by including:

The sending module is used to send the configuration information of random access CFRA resources without competition.
A data transmission device, characterized by including:

The first sending module is used to send configuration information of random access CFRA resources without competition;

The second sending module is used to send indication information.
A data transmission device, characterized by including:

The sending module is used to send physical downlink control related to small packet data transmission SDT after the first moment. control channel PDCCH.
An electronic device, characterized by comprising: a processor, and a memory communicatively connected to the processor;

The memory stores computer execution instructions;

The processor executes computer-executable instructions stored in the memory to implement the method according to any one of claims 1-5.
An electronic device, characterized by comprising: a processor, and a memory communicatively connected to the processor;

The memory stores computer execution instructions;

The processor executes computer-executable instructions stored in the memory to implement the method according to any one of claims 6-20.
An electronic device, characterized by comprising: a processor, and a memory communicatively connected to the processor;

The memory stores computer execution instructions;

The processor executes computer-executable instructions stored in the memory to implement the method of any one of claims 21-25.
An electronic device, characterized by comprising: a processor, and a memory communicatively connected to the processor;

The memory stores computer execution instructions;

The processor executes computer-executable instructions stored in the memory to implement the method of any one of claims 26-30.
An electronic device, characterized by comprising: a processor, and a memory communicatively connected to the processor;

The memory stores computer execution instructions;

The processor executes computer-executable instructions stored in the memory to implement the method of any one of claims 31-45.
An electronic device, characterized by comprising: a processor, and a memory communicatively connected to the processor;

The memory stores computer execution instructions;

The processor executes computer-executable instructions stored in the memory to implement the method of any one of claims 46-50.
A computer-readable storage medium, characterized in that, in the computer-readable storage medium Computer-executable instructions are stored, which when executed by the processor are used to implement the data transmission method according to any one of claims 1-5, or the data according to any one of claims 6-20. Transmission method, or the data transmission method according to any one of claims 21-25, or the data transmission method according to any one of claims 26-30, or any one of claims 31-45 The data transmission method, or the data transmission method according to any one of claims 46-50.
A computer program product, characterized in that it includes a computer program that, when executed by a processor, implements the data transmission method described in any one of claims 1-5, or any one of claims 6-20 The data transmission method, or the data transmission method described in any one of claims 21-25, or the data transmission method described in any one of claims 26-30, or claims 31-45 The data transmission method described in any one of claims 46 to 50, or the data transmission method described in any one of claims 46-50.