Wireless communication method, device, and storage medium

Abstract

A wireless communication method, device and storage medium are disclosed. A terminal device sends request information to a network device; the request information is used to request the network device to configure a CG resource by a target configuration mode, and the CG resource is used for small data transmission; the terminal device acquires configuration information sent by the network device; and the configuration information is used to indicate a usage mode of the CG resource of the terminal device.

Description

Technical Field

[0001] This invention relates to mobile communication technology, and more particularly to a wireless communication method, device, and storage medium. Background Technology

[0002] In related technologies, there are situations like the following: Situation 1: The Configuration Grant (CG) resource on the terminal device is no longer available, but the release condition has not been met. In this case, the network side reserves the CG resource for the terminal device, resulting in a waste of CG resources; Situation 2: The CG resource on the terminal device may be available, but the network device considers the CG resource of the network device to be unavailable and releases the CG resource of the terminal device, causing unnecessary waste of resources. Summary of the Invention

[0003] This invention provides a wireless communication method, device, and storage medium that can maintain synchronization of CG resource processing at both ends of the network and the terminal device.

[0004] The technical solution of this invention is implemented as follows:

[0005] In a first aspect, embodiments of the present invention provide a wireless communication method, comprising:

[0006] The terminal device sends a request message to the network device; the request message is used to request the network device to configure CG resources through a target configuration method, and the CG resources are used for small data transmission.

[0007] The terminal device obtains configuration information sent by the network device; the configuration information is used to indicate how the terminal device uses the CG resources.

[0008] Secondly, embodiments of the present invention provide a wireless communication method, including:

[0009] The network device receives a request message sent by the terminal device; the request message is used to request the network device to configure the configuration authorized CG resource through the target configuration method, and the CG resource is used for small data transmission;

[0010] The network device generates configuration information for the CG resource; the configuration information is used to indicate how the terminal device uses the CG resource.

[0011] The network device sends the configuration information to the terminal device.

[0012] Thirdly, embodiments of the present invention provide a terminal device, including:

[0013] The first sending unit is configured to send a request message to a network device; the request message is used to request the network device to configure CG resources through a target configuration method, and the CG resources are used for small data transmission.

[0014] The first receiving unit is configured to acquire configuration information sent by the network device; the configuration information is used to indicate the usage method of the CG resources by the terminal device.

[0015] Fourthly, embodiments of the present invention provide a network device, including:

[0016] The second receiving unit is configured to receive request information sent by the terminal device; the request information is used to request the network device to configure the authorized CG resource through the target configuration method, and the CG resource is used for small data transmission;

[0017] The third determining unit is configured to generate configuration information for the CG resource, wherein the configuration information is used to indicate the usage method of the CG resource by the terminal device;

[0018] The second sending unit is configured to send the configuration information to the terminal device.

[0019] Fifthly, embodiments of the present invention provide a terminal device, including a processor and a memory for storing a computer program capable of running on the processor, wherein when the processor runs the computer program, it executes the steps of the wireless communication method executed by the terminal device described above.

[0020] In a sixth aspect, embodiments of the present invention provide a network device, including a processor and a memory for storing a computer program capable of running on the processor, wherein, when the processor runs the computer program, it executes the steps of the wireless communication method executed by the network device described above.

[0021] In a seventh aspect, embodiments of the present invention provide a storage medium storing an executable program, wherein when the executable program is executed by a processor, it implements the wireless communication method executed by the aforementioned terminal device.

[0022] Eighthly, embodiments of the present invention provide a storage medium storing an executable program, which, when executed by a processor, implements the wireless communication method executed by the network device described above.

[0023] The wireless communication method provided in this embodiment of the invention includes: a terminal device sending request information to a network device, the request information being used to request the network device to configure CG resources through a target configuration method, the CG resources being used for small data transmission; the terminal device obtaining configuration information sent by the network device; the configuration information being used to indicate the usage method of the CG resources by the terminal device; here, the terminal device instructs the network device to delete, retain, or update the current CG resources according to its desired processing of the current CG resources, and receives a response from the network device indicating whether to delete, retain, or update the CG resources, thereby enabling the terminal device and the network device to maintain synchronization in the processing of CG resources through the interaction of request information and configuration information, avoiding situations where the terminal device retains CG resources but the network device releases CG resources, or the terminal device releases CG resources but the network device retains CG resources. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the EDT process in LTE according to an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the data transmission process based on PUR in LTE according to an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of an optional component structure of the communication system according to an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of an optional wireless communication process according to an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of an optional wireless communication process according to an embodiment of the present invention;

[0029] Figure 6 This is a schematic diagram of an optional wireless communication process according to an embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of an optional wireless communication process according to an embodiment of the present invention;

[0031] Figure 8 This is a schematic diagram of an optional component structure of a terminal device according to an embodiment of the present invention;

[0032] Figure 9 This is a schematic diagram of an optional component structure of a network device according to an embodiment of the present invention;

[0033] Figure 10 This is a schematic diagram of an optional component structure of an electronic device according to an embodiment of the present invention. Detailed Implementation

[0034] To gain a more detailed understanding of the features and technical content of the embodiments of the present invention, the implementation of the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for reference and illustration only and are not intended to limit the embodiments of the present invention.

[0035] Before providing a detailed description of the random access method provided in the embodiments of the present invention, a brief description of some data transmission technologies will be given first.

[0036] CG

[0037] There are two methods for uplink scheduling of terminal devices: dynamic scheduling, also known as dynamic grant (DG), and CG. DG typically allocates resources through downlink control information (DCI). Configuration grant includes two types: configured grant type 1 and configured grant type 2. In configuration grant type 1, parameters such as the location of time-frequency resources, the period of CG resources, the number of Hybrid Automatic Repeat Request (HARQ) processes using CG resources, and the Modulation and Coding Scheme (MCS) are provided to the terminal device by the network device through Radio Resource Control (RRC) signaling and stored by the terminal as a configured uplink grant. After configuring grant type 1 by RRC signaling, the terminal can use the configured grant for uplink data transmission. In configuration grant type 2, parameters such as the period of CG resources, the number of HARQ processes using CG resources, and which MCS table to use are provided to the terminal device by the network device through RRC signaling. However, the location of time-frequency resources and the MCS index value are provided to the terminal by the network device through DCI and stored by the terminal as a configured uplink grant. That is, configuration grant type 2 is activated or deactivated by physical layer or layer 1 signaling control.

[0038] Early Data Transmission (EDT)

[0039] In Long Term Evolution (LTE), EDT (Early Data Transmission) has been introduced. During this process, the User Equipment (UE) may remain in an idle, suspended, or inactive state to transmit uplink and / or downlink small data packets. The air interface procedure for uplink EDT is as follows: Figure 1 As shown, it includes:

[0040] S101, The UE sends a random access preamble to the eNB;

[0041] S102, the eNB sends a Random Access Response to the UE.

[0042] S103, The UE sends an RRC resume request to the eNB.

[0043] The RRC resume request carries the resume ID, resume case, authentication token (shortResumeMAC-I), and uplink data.

[0044] S104, the eNB sends an RRC Connection Release notification to the UE.

[0045] The RRC Connection Release includes the release case, resume ID, NCC, and downlink data.

[0046] It should be noted that S103 to S104 also include other RRC signaling, which are not shown here.

[0047] During the EDT process, the UE completes the transmission of small data packets without entering the connected state. In terms of configuration, the network configures a maximum Transport Block (TB) size allowed for transmission in the System Information Block (SIB)2. The UE determines the amount of data it needs to transmit. If the amount of data is less than this maximum TB size, the UE can initiate EDT transmission; otherwise, the UE uses the normal connection establishment process and enters the connected state to transmit data.

[0048] Preconfigured Uplink Resource (PUR)

[0049] In LTE Release 16, a method for data transmission using PUR in idle state was introduced for Narrow-Band Internet of Things (NB-IoT) and LTE-enhanced Mobile Internet of Things (eMTC) mobile IoT scenarios. PUR is only valid within the currently configured cell; that is, when the UE detects a cell change and initiates random access in the new cell, the UE needs to release the PUR configured in the original cell. The PUR transmission process is similar to LTE UP-EDT, except that the process of sending a preamble to obtain Timing Advance (TA) and Uplink Scheduling Grant (ULgrant) is omitted.

[0050] The air interface process based on PUR transmission is as follows: Figure 2 As shown, in Figure 1 The air interface process shown includes the following steps before S103:

[0051] S100 and UE have available PUR resources.

[0052] A crucial prerequisite for a UE to perform data transmission using PUR is having a valid TA. According to the protocol, the conditions for determining whether a TA is valid include at least one of the following:

[0053] - The TA timer (TAT) is running; and / or

[0054] - The change (increase or decrease) in the reference signal received power (RSRP) is not greater than / less than the set threshold;

[0055] The TAT configuration, as part of the PUR configuration, is sent to the UE via the RRC ConnectionRelease message. Based on the TAT configuration, the RRC instructs the Medium Access Control (MAC) layer to apply or release the PUR configuration. Upon receiving the RRCConnectionRelease message, the RRC determines whether it contains the PUR (pur-Config). If not, the UE retains its existing configuration, and the TAT is not restarted; if it does, the RRC performs one of the following actions based on the pur-Config:

[0056] ■ If pur-Config is set to setup, the UE stores or replaces the PUR configuration. If pur-Config contains a MAC layer maintenance timer (pur-TimeAlignmentTimer), the RRC layer instructs the lower layer to apply pur-TimeAlignmentTimer; if pur-Config does not contain pur-TimeAlignmentTimer, the RRC layer instructs the lower layer to release pur-TimeAlignmentTimer.

[0057] ■ If pur-Config is set to release, the UE releases the PUR configuration and instructs the lower layer to release pur-TimeAlignmentTimer;

[0058] ■ If the network does not provide an explicit instruction and the UE currently has pre-configured resources, the default behavior of the UE after receiving the RRC release is to maintain the current configuration.

[0059] The Time Attack (TAT) in PUR transmission is maintained by the MAC layer. If the MAC layer receives a pur-TimeAlignmentTimer configured by a higher layer, it starts or restarts the timer; if the MAC layer receives an instruction from a higher layer to release the pur-TimeAlignmentTimer, it stops the timer. In addition to starting or restarting the timer according to higher layer instructions, the MAC layer also needs to start or restart the timer according to the received Timing Advance Command (TAC) MAC control element (CE) or the time adjustment amount indicated by the Physical Downlink Control Channel (PDCCH).

[0060] Small Data Transmission (SDT)

[0061] In 5G New Radio (NR) systems, there are three RRC states: RRC_IDLE (RRC idle state), RRC_INACTIVE (RRC inactive state), and RRC_CONNECTED (RRC connected state). The RRC_INACTIVE state is a new state introduced by 5G systems for energy conservation. For UEs in the RRC_INACTIVE state, radio bearers and all radio resources are released, but the UE access context is retained on both the UE and base station sides to quickly restore the RRC connection. Networks typically keep UEs with infrequent data transmission in the RRC_INACTIVE state. Prior to Rel-16, UEs in the RRC_INACTIVE state did not support data transmission. When Mobile Original (MO) or Mobile Terminated (MT) data arrived, the UE needed to restore the connection and was released to the INACTIVE state only after the data transmission was completed. For UEs with small data volumes and low transmission frequencies, this transmission mechanism led to unnecessary power consumption and signaling overhead. Therefore, Rel-17 initiated a research project on SDT under RRC_INACTIVE, with two main objectives: uplink small data transmission based on random access procedures (two-step / four-step) and uplink small data transmission based on pre-configured resources (such as CG type 1).

[0062] At the RAN2#113e meeting, the following conclusions were reached regarding SDT (CG-SDT) performed through CG resources:

[0063] The CG-SDT resource configuration is only provided to the UE in the RRC_Connected state within the RRC Release message; that is, it does not need to be included in the RRC Reconfiguration message.

[0064] When the UE is in the RRC_INACTIVE state, the RRC Release message is used to reconfigure or release CG-SDT resources.

[0065] Based on the existing method for releasing pre-configured resources in PUR, the network can explicitly instruct the UE to release or store pre-configured resources, or it can implicitly instruct the UE to release stored pre-configured resources. However, in R17 SDT, the following situation may occur:

[0066] Scenario 1: The UE leaves the current coverage area, meaning the CG resources configured by the source cell are no longer available. However, the CG resources have not met the release conditions, such as the CG timer not expiring. In this case, the network is unaware of this, which leads to the network still reserving the CG resources for the UE, resulting in a waste of resources.

[0067] Scenario 2: When the UE performs SDT type selection, i.e., selects RA-SDT or CG-SDT based on the triggering conditions, if there is no CG resource for the carrier or beam corresponding to the current resource, the UE selects the RA procedure for SDT. The network may mistakenly believe that the CG resource is unavailable for the UE and release the resource. Due to the UE's mobility, the CG resource may become available in the next SDT. If the network releases the resource, it will cause unnecessary resource overhead.

[0068] It is evident that in the relevant technologies, the processing of current CG resources by terminal devices and network devices is not synchronized.

[0069] To address the aforementioned problems, this invention provides a wireless communication method. This method can be applied to various communication systems, such as: Global System for Mobile communication (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), General Packet Radio Service (GPRS), Long Term Evolution (LTE), LTE Frequency Division Duplex (FDD), LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX), or 5G systems, etc.

[0070] For example, the communication system 300 used in this embodiment of the invention, such as... Figure 3As shown. The communication system 300 may include a network device 310, which may be a device that communicates with a terminal device 320 (or a communication terminal, terminal). The network device 310 can provide communication coverage for a specific geographical area and can communicate with terminal devices located within that coverage area. Optionally, the network device 310 may be a base station (BTS) in a GSM or CDMA system, a base station (NodeB, NB) in a WCDMA system, an evolved Node B (eNB or eNodeB) in an LTE system, a base station (gNB) in an NR / 5G system, or a radio controller in a Cloud Radio Access Network (CRAN). Alternatively, the network device may be a mobile switching center, relay station, access point, vehicle-mounted equipment, wearable device, hub, switch, bridge, router, network-side equipment in a 5G network, or network equipment in a future evolved Public Land Mobile Network (PLMN), etc.

[0071] The communication system 300 also includes at least one terminal device 320 located within the coverage area of ​​the network device 310. As used herein, "terminal device" includes, but is not limited to, devices configured to receive / transmit communication signals via wired connections, such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, direct cable connection; and / or another data connection / network; and / or via a wireless interface, such as for cellular networks, Wireless Local Area Networks (WLAN), digital television networks such as DVB-H networks, satellite networks, AM-FM radio transmitters; and / or other terminal devices; and / or Internet of Things (IoT) devices. Terminal devices configured to communicate via a wireless interface may be referred to as "wireless communication terminal," "wireless terminal," or "mobile terminal." Examples of mobile terminal devices include, but are not limited to, satellite or cellular phones; personal communications system (PCS) terminals that can combine cellular radiotelephony with data processing, fax, and data communication capabilities; PDAs that may include radiotelephones, pagers, Internet / intranet access, web browsers, notebooks, calendars, and / or Global Positioning System (GPS) receivers; and conventional laptop and / or handheld receivers or other electronic devices that include radiotelephone transceivers. Terminal equipment can refer to access terminals, user equipment (UE), user units, user stations, mobile stations, mobile stations, remote stations, remote terminals, mobile devices, user terminals, terminals, wireless communication equipment, user agents, or user equipment. Access terminals can be cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to a wireless modem, in-vehicle devices, wearable devices, terminal devices in 5G networks, or terminal devices in future PLMNs, etc.

[0072] Optionally, the terminal devices 320 can communicate with each other via Device to Device (TB2D).

[0073] Alternatively, a 5G system or 5G network may also be referred to as an NR system or NR network.

[0074] Figure 3 An exemplary embodiment shows a network device and two terminal devices. Optionally, the communication system 300 may include multiple network devices and each network device may include other numbers of terminal devices within its coverage area. This embodiment of the invention does not limit this.

[0075] Optionally, the communication system 300 may also include other network entities such as a network controller and a mobility management entity, which is not limited in this embodiment of the invention.

[0076] It should be understood that devices with communication functions in the network / system of this invention can be referred to as communication devices. Figure 3 Taking the communication system 300 shown as an example, the communication equipment may include a network device 310 and a terminal device 320 with communication functions. The network device 310 and the terminal device 320 may be the specific devices described above, which will not be repeated here. The communication equipment may also include other devices in the communication system 300, such as network controllers, mobility management entities and other network entities. This embodiment of the invention does not limit this.

[0077] An optional processing flow of the wireless communication method provided in this embodiment of the invention, such as... Figure 4 As shown, it includes the following steps:

[0078] S401. The terminal device sends a request message to the network device.

[0079] The request information is used to request the network device to configure CG resources through a target configuration method, and the CG resources are used for small data transmission.

[0080] When a terminal device expects a network device to configure the current CG resources in the target configuration manner, it sends a request message to the network device to instruct the network device to configure the current CG resources in the target manner.

[0081] Optionally, the terminal device may send a request message to the network device at at least one of the following times:

[0082] Timing 1: No CG resources are configured on the carrier or beam selected by the terminal device for SDT;

[0083] Timing 2: The terminal device leaves the coverage area of ​​the cell corresponding to the current CG resource;

[0084] Timing 3: The timing advance of the terminal device fails;

[0085] Timing 4: The reference signal received power measured by the terminal device does not meet the reference signal received power threshold for small data transmission via CG resources;

[0086] Timing 5: The terminal device fails to transmit data during multiple consecutive CG timings;

[0087] Timing 6: The terminal device fails to transmit at multiple consecutive CG timings.

[0088] In this embodiment of the invention, when the terminal device is in any of the time periods 1 to 6, it can be determined that the CG resources currently used for SDT are unavailable or have been released. Therefore, it is expected that the network device will configure the CG resources in the target configuration mode, and a request message is sent to the network device requesting the network device to configure the CG resources in the target configuration mode.

[0089] In some embodiments, the target configuration method includes one of the following:

[0090] Configuration method 1: Delete CG resource configuration;

[0091] Configuration method 2: Retain CG resource configuration;

[0092] Configuration method 3: Update CG resource configuration.

[0093] In one example, if the terminal device determines that it has left the cell corresponding to the current CG resource, i.e. the current CG resource is unavailable, it sends a request to the network device to delete the current CG resource configuration, instructing the network device to delete the current CG resource.

[0094] In one example, if the terminal device determines that it has left the cell corresponding to the current CG resource, that is, the current CG resource is unavailable, it sends a request to the network device to request the network device to retain the current CG resource configuration, instructing the network device to retain the current CG resource.

[0095] In one example, if the terminal device fails to transmit data during multiple consecutive CG events, it determines that the current CG resource is unavailable and sends a request to the network device to retain the current CG resource configuration, instructing the network device to update the current CG resource.

[0096] In one example, if the terminal device fails to transmit at multiple consecutive CG moments, it determines that the current CG resource has been released and sends a request to the network device to request the network device to update the current CG resource configuration.

[0097] After receiving the request information sent by the terminal device, the network device determines the current usage mode of the CG resource and sends the configuration information indicating the current usage mode of the CG resource to the terminal device.

[0098] S402, The terminal device obtains the configuration information sent by the network device.

[0099] The configuration information is used to indicate how the CG resources are used by the terminal device.

[0100] In some embodiments, the CG resources are used in one of the following ways:

[0101] Method 1: Release the CG resources;

[0102] Method 2: Retain the CG resources;

[0103] Method 3: Use the network device to update CG resources.

[0104] After receiving the configuration information sent by the network device, the terminal device determines the current usage mode of the CG resources and processes its own CG resources according to the usage mode indicated by the configuration information, so that its own CG resources and the network device's CG resources remain synchronized.

[0105] In one example, the configuration information received by the terminal device is used to instruct the release of CG resources, and the current CG resources are then released.

[0106] In one example, the configuration information received by the terminal device is used to indicate that the current CG resource should be retained.

[0107] In one example, the configuration information received by the terminal device is used to instruct the terminal device to use the CG resources updated by the network device. In this case, the current CG resources are updated to the CG resources reconfigured by the network device.

[0108] Alternatively, network devices may reconfigure CG resources in one of the following ways:

[0109] Full configuration and differential configuration.

[0110] In this embodiment of the invention, releasing CG resources can also be understood as deleting CG resources, and retaining CG resources can also be understood as maintaining CG resources.

[0111] The wireless communication method provided in this embodiment of the invention involves a terminal device sending a request message to a network device. The request message requests the network device to configure CG resources using a target configuration method. The CG resources are used for small data transmission. The terminal device obtains configuration information sent by the network device. The configuration information indicates how the terminal device uses the CG resources. Here, the terminal device instructs the network device to delete, retain, or update the current CG resources according to its desired processing method, and receives a response from the network device indicating whether to delete, retain, or update the CG resources. This allows the terminal device and the network device to maintain synchronization in CG resource processing through the interaction of the request message and configuration information, preventing situations where the terminal device retains CG resources while the network device releases them, or vice versa.

[0112] This invention also provides a wireless communication method, such as... Figure 5 As shown, it includes the following steps:

[0113] S501, The network device receives the request information sent by the terminal device;

[0114] The request information is used to request the network device to configure CG resources through target configuration, and the CG resources are used for SDT.

[0115] The network device determines the request information sent by the terminal device and determines the target configuration method requested by the request information.

[0116] In some embodiments, the target configuration method includes one of the following:

[0117] Configuration method 1: Delete CG resource configuration;

[0118] Configuration method 2: Retain CG resource configuration;

[0119] Configuration method 3: Update CG resource configuration.

[0120] In one example, the request information received by the network device instructs the network device to configure the CG resource by deleting the CG resource configuration; that is, the request information instructs the network device to delete the current CG resource.

[0121] In one example, the request information received by the network device instructs the network device to configure the CG resources by preserving the CG resource configuration; that is, the request information instructs the network device to preserve the current CG resources.

[0122] In one example, the request information received by the network device instructs the network device to configure the CG resources by updating the CG resource configuration; that is, the request information instructs the network device to update the current CG resources.

[0123] S502, The network device generates the configuration information of the CG resource.

[0124] The configuration information is used to indicate how the CG resources are used by the terminal device.

[0125] In some embodiments, the CG resources are used in one of the following ways:

[0126] Release the CG resources;

[0127] The CG resources will be retained;

[0128] CG resources updated using the network device.

[0129] After receiving the request information, the network device determines the usage method of the CG resources based on its own CG resource needs, and generates configuration information according to the determined usage method to indicate the determined usage method.

[0130] Optionally, the determined usage method corresponds to the target configuration method indicated by the request information.

[0131] In one example, the request information indicates that the target configuration is to delete CG resource configuration, and the configuration information indicates that the usage is to release CG resources.

[0132] In one example, the target configuration indicated by the request information is to retain CG resources, and the usage indicated by the configuration information is: retain CG resources.

[0133] In one example, the target configuration indicated by the request information is to update the CG resource configuration, and the usage indicated by the configuration information is: to update the CG resources using network devices.

[0134] Optionally, the determined usage method does not correspond to the target configuration method indicated by the request information.

[0135] In one example, the target configuration indicated by the request information is to delete the CG resource configuration, and the usage indicated by the configuration information is: retain the CG resource or use the CG resource updated by the network device.

[0136] In one example, the target configuration indicated by the request information is to retain the CG resource configuration, and the usage indicated by the configuration information is: delete the CG resource or use the CG resource updated by the network device.

[0137] In one example, the request information indicates that the target configuration method is to update the CG resource configuration, and the configuration information indicates the usage method as: retain the CG resource or delete the CG resource.

[0138] Optionally, when the CG resources are updated using a network device, the network device updates the CG resource configuration to update the CG resources and reconfigures the CG resources to the terminal device.

[0139] Here, the methods for reconfiguring CG resources include: full configuration or differential configuration.

[0140] When the network device determines that the usage mode is to release CG resources, the network device releases the current CG resources.

[0141] If the network device determines that the usage mode is to retain CG resources, then the network device will retain the current CG resources.

[0142] When the network device determines that the usage mode is to use CG resources updated by the network device, the network device will reconfigure the CG resources to update them.

[0143] S503, The network device sends the configuration information to the terminal device.

[0144] The network device sends the determined configuration information to the terminal device to instruct the terminal device on how the network device uses the CG resources.

[0145] Optionally, after receiving the configuration information, the terminal device determines how the network device uses the CG resources and adopts the same usage method, thereby maintaining the synchronization of the terminal device and the network device's usage of the CG resources.

[0146] In one example, the network device determines that the conditions for releasing CG resources are met, but if the received request information instructs the network device to retain the CG resource configuration, then the current CG resource is retained, and the terminal device is notified to retain the current CG resource. Optionally, the conditions for releasing CG resources include: CG timer timeout.

[0147] In one example, the network device determines that the conditions for releasing CG resources are not currently met, but the received request information instructs the network device to release CG resource configurations. Therefore, the current CG resources are released, and the terminal device is notified to delete the CG resources.

[0148] The wireless communication method provided in this embodiment of the invention involves a network device receiving a request message from a terminal device. The request message requests the network device to configure authorized CG resources using a target configuration method. The CG resources are used for small data transmission. The network device generates configuration information for the CG resources. This configuration information indicates how the terminal device uses the CG resources. The network device sends the configuration information to the terminal device. Here, the network device, based on the request message, learns that the terminal device expects to delete, retain, or update the CG resources. The network device then responds to the terminal device with configuration information indicating whether to delete, retain, or update the CG resources. This ensures that the terminal device and the network device maintain synchronization in processing CG resources through the interaction of the request message and the configuration information, preventing situations where the terminal device retains CG resources while the network device releases them, or vice versa.

[0149] This invention provides a wireless communication method, such as... Figure 6 As shown, it includes:

[0150] S601. The terminal device sends a request message to the network device. The request message is used to request the network device to configure CG resources through a target configuration method, and the CG resources are used for small data transmission.

[0151] S602. Determine the configuration information of network devices.

[0152] The configuration information is used to indicate how the CG resources are used by the terminal device.

[0153] S603, The network device sends configuration information to the terminal device.

[0154] For a description of S601, please refer to [reference needed]. Figure 4 The description of the wireless communication method on the terminal device side shown, specifically S602 to S603, can be found in [reference needed]. Figure 5 The description of the wireless communication method on the network device side shown is omitted here.

[0155] Optionally, the method of sending the request information includes: implicit sending; or explicit sending.

[0156] In the explicit sending method, the request information is an information element (IE) specifically used to indicate the target configuration method.

[0157] In the implicit sending method, the request information is indicated through information from other functions.

[0158] Taking implicit transmission as an example, the request information includes: the reason for selecting the transmission mode, or a preamble block. In this case, the indication method for the target configuration mode is implicit indication.

[0159] Taking explicit sending as an example, the request message includes: RRC signaling or MAC CE. In this case, the indication method for the target configuration is explicit indication.

[0160] In some embodiments, such as Figure 7 As shown, prior to S401, the terminal device further implements the following steps:

[0161] S400, The terminal device determines the transmission method for SDT according to preset conditions.

[0162] The request information is also used to instruct the terminal device on the transmission method for SDT; the transmission methods for SDT include: SDT via CG resources (CG-SDT) and SDT via RA resources (RA-SDT).

[0163] Optionally, the preset conditions for the terminal device to select the transmission method can be set based on at least one of the following parameters: RSRP, priority, and whether CG is valid, etc.

[0164] In one example, if TA is valid and CG resources exist on the selected beam, then the terminal device selects CG-SDT as the transmission mode.

[0165] Optionally, CG-SDT has a higher priority than RA-SDT.

[0166] Terminal devices should prioritize CG-SDT. If the current CG resource is unavailable or has been released, then RA-SDT should be selected.

[0167] In one example, when the terminal device has configured CG resources, but the current CG resources are unavailable and RA-SDT is selected for SDT, the request information sent to the network device instructs the network device to perform SDT through RA-SDT.

[0168] When a terminal device indicates the transmission method for SDT to a network device, the target configuration method is indicated through the transmission method for SDT.

[0169] In one example, if the terminal device determines that the transmission method used for SDT is CG-SDT, then the request message includes the network device's transmission method for SDT, CG-SDT, and the target configuration method is determined based on CG-SDT.

[0170] In one example, if the terminal device determines that the transmission method used for SDT is RA-SDT, then the request message includes the network device's transmission method for SDT as RA-SDT, and the target configuration method is determined based on RA-SDT.

[0171] In some embodiments, the terminal device determines a transmission mode for small data transmission based on preset conditions, including:

[0172] The terminal device determines not to transmit small data via CG resources when at least one of the following preset conditions is met:

[0173] Condition 1: No CG resources are configured on the carrier or beam selected by the terminal device;

[0174] Condition 2: The terminal device leaves the coverage area of ​​the cell where the network device is located;

[0175] Condition 3: TA fails;

[0176] Condition 4: The reference signal received power measured by the terminal device does not meet the reference signal received power threshold for small data transmission via CG resources;

[0177] Condition 5: The terminal device did not transmit data during multiple consecutive CG events;

[0178] Condition 6: The terminal device fails to transmit at multiple consecutive CG times.

[0179] Optionally, the failure conditions for TA failure in condition 3 include: timer timeout or RSRP change exceeding the pre-configured threshold.

[0180] In this embodiment of the invention, when one or more of the preset conditions are met, the terminal device considers the current CG resource to be unavailable or the CG resource to have been released.

[0181] If the terminal device configures CG resources, but the CG resources are unavailable or have been released, then SDT will not be performed through the CG resources.

[0182] Optionally, the terminal device determines that the transmission mode for SDT is RA-SDT.

[0183] In one example, if the terminal device configures CG resources, but the selected carrier / beam for SDT is not configured with CG resources, then it is determined that SDT will not be performed using CG resources.

[0184] In one example, if the terminal device is configured with CG resources but TA is invalid, it is determined that SDT will not be performed through CG resources.

[0185] In some embodiments, when the request information indicates that small data transfer should not be performed via CG resources, the request information includes: a reason for not performing small data transfer via CG resources; wherein the reason for not performing small data transfer via CG resources includes at least one of the following:

[0186] Reason A1: No CG resources are configured on the carrier or beam selected by the terminal device;

[0187] Reason A2: The terminal device has left the coverage area of ​​the cell where the network device is located;

[0188] Reason A3: TA failure;

[0189] Reason A4: The reference signal received power measured by the terminal device does not meet the reference signal received power threshold for small data transmission via CG resources;

[0190] Reason A5: The terminal device failed to transmit data during multiple consecutive CG events;

[0191] Reason A6: The terminal device fails to transmit at multiple consecutive CG times;

[0192] Reason A7: The terminal device expects to transmit small data via RA resources;

[0193] Reason A8: The terminal device expects to release CG resources.

[0194] The reason why the terminal device sends a request message to the network device to transmit small data without using CG resources can indicate that the transmission method determined by the terminal device is RA-SDT.

[0195] The reasons A1 to A8 mentioned above are also reasons why CG resources are unavailable or have been released.

[0196] Here, the terminal device sends a reason to the network device that the current CG resource is unavailable or has been released, indicating that the current CG resource is unavailable or has been released, and instructs on the target configuration method based on the sent reason. In this case, the request message is sent implicitly, meaning the indication of the target configuration method is implicit.

[0197] In one example, if the terminal device sends a message to the network device indicating that the reason for not performing SDT through CG resources is that the TA has failed, then the target configuration method is to delete the CG resource configuration.

[0198] In one example, if the terminal device sends a message to the network device indicating that the reason for not performing SDT through CG resources is that the TA has failed, then the target configuration method is to retain CG resource configuration.

[0199] In one example, if a terminal device sends a message to a network device indicating that the reason it does not perform SDT through CG resources is that the terminal device has left the coverage area of ​​the cell where the network device is located, then the target configuration method is to update the CG resource configuration.

[0200] In one example, if the terminal device sends a message to the network device indicating that the reason for not performing SDT through CG resources is that it expects to perform small data transmission through RA resources, then the target configuration method is to release CG resource configuration.

[0201] Here, when the terminal device uses RA-SDT for SDT, the network device can know from the transmission method used by the terminal device for SDT that the terminal device is configured with CG resources but is using RA-SDT for SDT.

[0202] In some embodiments, when the request information indicates that small data transfer is performed via CG resources, the request information includes: reason B1, and the reason for performing small data transfer via CG resources; wherein the reason for performing small data transfer via CG resources includes at least one of the following:

[0203] Reason B1: CG resources have been configured on the carrier or beam selected by the terminal device;

[0204] Reason B2: The terminal device is located within the coverage area of ​​the cell where the network device is located;

[0205] Reason B3: TA is effective;

[0206] Reason B4: The reference signal received power measured by the terminal device meets the reference signal received power threshold for small data transmission via CG resources;

[0207] Reason B5: The terminal device transmits data during multiple consecutive CG events;

[0208] Reason B6: The terminal device successfully transmitted data during multiple consecutive CG events;

[0209] Reason B7: The terminal device expects to transmit small data via CG resources;

[0210] Reason B8: The terminal device expects to maintain or update CG resources.

[0211] The reason why the terminal device sends a request message to the network device for small data transmission via CG resources can indicate that the transmission method determined by the terminal device is CG-SDT.

[0212] Reasons B1 to B8 above are the reasons why CG resources are available but not released.

[0213] Here, the terminal device sends the reason why the current CG resource is available and not released to the network device, indicating that the current CG resource is available and not released, and instructs the target configuration method based on the above reason. At this time, the request message is sent implicitly, that is, the indication method of the target configuration method is implicit.

[0214] In one example, if the terminal device sends a message to the network device indicating that the reason for performing SDT through CG resources is that TA is valid, then the target configuration method is to update the CG resource configuration.

[0215] In one example, if the terminal device sends a message to the network device indicating that the reason for performing SDT through CG resources is that TA is valid, then the target configuration method is to retain CG resource configuration.

[0216] In one example, if the terminal device sends a message to the network device indicating that the reason for the terminal device to perform SDT through CG resources is that the terminal device is located within the coverage area of ​​the cell where the network device is located, then the target configuration method is to update the CG resource configuration.

[0217] In one example, if the terminal device sends a message to the network device indicating that the reason for performing SDT through CG resources is that it expects to transmit small data through CG resources, then the target configuration method is to retain the CG resource configuration.

[0218] In one example, when the terminal device uses RA-SDT to perform this SDT, the network device considers the current CG resource to be unavailable, and determines the target configuration method to be either to delete the CG resource configuration or to update the CG resource configuration.

[0219] In one example, when the terminal device uses CG-SDT to perform this SDT, the network device considers the current CG resources to be available and determines the target configuration method as either retaining the CG resource configuration or updating the CG resource configuration.

[0220] In one example, the terminal device configures CG resources. When the terminal device leaves the cell corresponding to the current CG resource, it determines that the current CG resource is unavailable. Therefore, it selects RA-SDT as the transmission method for SDT and uses RA-SDT to perform SDT with the network device. Based on the transmission method used for SDT, the network device determines the target configuration method (reserving CG resource configuration) as instructed by the terminal device. Therefore, based on the target configuration method, the network device determines that the CG resource usage method is to reserve the CG resource for use in the next SDT.

[0221] In one example, the terminal device configures CG resources. When the timing advance fails, the terminal device determines that the current CG resource is unavailable or has been released. Therefore, it determines the transmission method for SDT (Software-Defined Distribut ...

[0222] In one example, the terminal device configures CG resources. When the change in reference signal received power exceeds a configured threshold, the terminal device determines that the current CG resources are unavailable or have been released. It then determines that the transmission method for SDT (Signal Target Distributed Dependency Test) is RA-SDT and uses RA-SDT to perform SDT with the network device. Based on the RA-SDT transmission method, the network device determines that the terminal device's target configuration is to update the CG resource configuration. Therefore, based on the target configuration method, it determines that the CG resource usage method is to use the updated CG resource from the network and updates the CG resource, avoiding the network device reserving the current CG resource for the terminal device and thus preventing resource waste.

[0223] In one example, the terminal device configures CG resources. If data is not transmitted or transmission fails for multiple consecutive CG events, the terminal device determines that the current CG resource is unavailable or has been released. Therefore, it determines that the transmission method used for SDT (Software-Defined Transmission) is RA-SDT, and uses RA-SDT to perform SDT with the network device. Based on the RA-SDT transmission method, the network device determines that the target configuration method instructed by the terminal device is to update the CG resource configuration. Therefore, based on the target configuration method, it determines that the usage method of the CG resource is to update the CG resource, and then updates the CG resource.

[0224] In some embodiments, prior to S401, the terminal device further performs the following steps:

[0225] The terminal device determines the preamble group.

[0226] Here, the preamble group includes: a first preamble group and a second preamble group. When the terminal device determines that the transmission mode used for SDT is RA-SDT, it determines different preamble groups according to the different reasons for determining the transmission mode used for SDT, and performs RA based on the preamble in the determined preamble group.

[0227] In some embodiments, when the terminal device determines that it is using RA resources for small data transmission due to the release of the CG resources, the terminal device selects a first preamble packet; when the terminal device determines that it is using RA resources for small data transmission due to the absence of the CG resources on the selected carrier or beam, the terminal device selects a second preamble packet.

[0228] Here, the preamble group selected by the terminal device is either the first preamble group or the second preamble group, which can indicate whether the reason for using RA resources for small data transmission is that CG resources have been released or CG resources are not configured on the selected carrier or beam.

[0229] In some embodiments, the request information includes a preamble packet selected by the terminal device.

[0230] The terminal device sends a preamble from a preamble packet to the network device. At this time, the preamble packet to which the sent preamble belongs is used to indicate the target configuration method of the network device.

[0231] The network device determines the target configuration method indicated by the terminal device based on the preamble packet to which the received preamble belongs.

[0232] In one example, if the preamble sent by the terminal device to the network device belongs to the first preamble packet, it indicates that the target configuration method of the network device is to release the CG resource configuration; if the current preamble belongs to the second preamble packet, it indicates that the target configuration method of the network device is to retain the CG resource configuration or update the CG resource configuration.

[0233] In one example, when the terminal device selects RA-SDT for SDT due to the release of CG resources, the terminal device selects the preamble in the first preamble group and sends the selected preamble to the network device. After receiving the preamble, the network device knows that the target configuration method is to delete the CG resource configuration, which means that the current CG resource has been released. Then the network device releases the CG resource or configures a new CG resource for the terminal device.

[0234] In one example, when a terminal device chooses RA-SDT for SDT because there are no available CG resources on the selected beam, the terminal device selects a preamble from the second preamble group and sends the selected preamble to the network device. Upon receiving the preamble, the network device knows that the current CG resource is unavailable and determines to release it. Furthermore, the network device can also configure new CG resources for the terminal device.

[0235] In some embodiments, the request information is sent in at least one of the following ways:

[0236] Sending method 1: Send via MAC CE;

[0237] Method 2: Send RRC signaling carrying the first indication information.

[0238] Optionally, in transmission mode 1, the MAC CE transmission mode includes at least one of the following:

[0239] Transmission method 1: Carried via message MSG 3;

[0240] Transmission method 2: Carried via message MSG A;

[0241] Transmission method 3: Uplink data transmission based on CG;

[0242] Transmission method 4: Uplink data transmission based on DG.

[0243] In transmission mode 1, MACCE can be carried in the payload of MSG3 during the four-step random access process.

[0244] In transmission mode 2, MAC CE can be carried in the payload of MSG A during the two-step random access process.

[0245] In transmission mode 3, MAC CE can be carried in the uplink data during the uplink data transmission process based on CG.

[0246] In transmission mode 4, MAC CE can be carried in the uplink data during the uplink data transmission process based on DG.

[0247] Optionally, in transmission mode 2, the RRC signaling includes: an RRC recovery request, or RRC signaling other than an RRC recovery request.

[0248] When the RRC signaling is an RRC resume request, the terminal device reuses the existing RRC signaling and transmits the request information through the existing RRC resume request.

[0249] When the RRC signaling is a reuse of the RRC recovery request, then the IE as request information is added to the RRC recovery request.

[0250] When the RRC signaling is other than an RRC recovery request, the RRC signaling transmitting the request information can be a new RRC signaling. In one example, the new RRC signaling includes: CG resource release signaling, CG resource storage signaling, etc.

[0251] Here, the new RRC signaling is used for proprietary RRC signaling that carries request information.

[0252] In this embodiment of the invention, different values ​​of the request information in the RRC signaling or MAC CE indicate different target configuration methods. In one example, a request information value of 00 instructs the network device to delete the current CG resource configuration; a request information value of 01 instructs the network device to retain the CG resource configuration; and a request information value of 10 instructs the network device to update the CG resource configuration.

[0253] In some embodiments, the request information is further used to indicate first auxiliary information, the first auxiliary information including: the status of the current CG resource configuration of the terminal device, the status of the current CG resource configuration including whether the current CG resource configuration has been deleted.

[0254] The first auxiliary information includes the status of the CG resource configuration that can characterize whether the current CG resource configuration of the terminal device has been deleted. The status of the CG resource configuration includes a first status and a second status. The first status indicates that the current CG resource configuration has not been deleted, and the second status indicates that the current CG resource configuration has been deleted.

[0255] Optionally, the CG resource configuration is sent from the network device to the terminal device to indicate parameters such as the time-frequency location, repetition period, HARQ ID, and MCS of the CG resource.

[0256] In this embodiment of the invention, the methods of sending the request information indicating the target configuration method and the request information indicating the first auxiliary information can be the same or different.

[0257] In one example, the request message indicating the target configuration method and the request message indicating the first auxiliary information are sent explicitly.

[0258] When both the request message indicating the target configuration method and the request message for the first auxiliary information are explicitly sent, they can be the same or different messages.

[0259] In one example, the request message indicating the target configuration method and the first auxiliary information is an RRC signaling.

[0260] In one example, the request message indicating the target configuration method is an RRC signaling message; the request message indicating the first auxiliary information is a MAC CE message.

[0261] In one example, the request message indicating the target configuration method is sent explicitly, while the request message indicating the first auxiliary information is sent implicitly. For example, the request message indicating the target configuration method is RRC signaling; the request message indicating the first auxiliary information is a preamble packet.

[0262] In one example, the request message indicating the target configuration method and the request message indicating the first auxiliary information are sent implicitly.

[0263] When both the request message indicating the target configuration method and the request message indicating the first auxiliary information are sent implicitly, they can be the same or different messages.

[0264] In one example, the request message indicating the target configuration method and the request message indicating the first auxiliary information are preamble packets.

[0265] In one example, the request message preamble packet indicates the target configuration method; the request message indicating the first auxiliary information is the SDT transmission method used by the terminal device.

[0266] In some embodiments, the first auxiliary information further includes: a reconfiguration method for reconfiguring CG resources.

[0267] When the first instruction information instructs the network device to release or update the current CG resources, it also instructs the reconfiguration method of the CG resources, so that the network device reconfigures the CG resources to the UE according to the instruction method.

[0268] In some embodiments, the reconfiguration method includes one of the following:

[0269] Full configuration and differential configuration.

[0270] When the reconfiguration method is full configuration, the network device performs a full configuration of the CG resources, updating all CG resources.

[0271] When the reconfiguration method is differential configuration (delta config), the network device performs differential configuration on the CG resources, updating some of the CG resources.

[0272] In some embodiments, after S401 or S601, the method further includes:

[0273] The terminal device determines the new CG resources configured by the network device.

[0274] At this time, the network device configures new CG resources to the terminal device.

[0275] The network device sends a CG resource configuration to the terminal device to configure new CG resources. The terminal device receives the CG resource configuration sent by the network device and determines the new CG resources based on the received CG resource configuration.

[0276] Here, the configuration method for CG resources on network devices can be either full configuration or differential configuration.

[0277] The wireless communication method provided in the embodiments of the present invention will be further described below.

[0278] If the upper layer of the UE triggers an SDT (Self-Determining Targeting), and the network simultaneously configures both CG-SDT and RA-SDT resources for the UE, the UE will preferentially select CG-SDT if certain conditions are met; otherwise, it will select RA-SDT. The triggered SDT can be either a data-triggered SDT or a signaling-triggered SDT. The signaling that triggers the SDT is a second message, which includes a positioning measurement report transmitted on SBR2.

[0279] Among them, the situations in which the UE selects RA-SDT include:

[0280] Scenario 1: The UE prioritizes using CG resources to transmit the first message, but CG resources are not configured on the carrier / beam selected by the UE, so the UE chooses to perform SDT through random access;

[0281] Scenario 2: The UE has left the current cell coverage area, and the CG resources configured for that cell are no longer available;

[0282] Case 3: Due to TA failure timeout, the UE automatically released the configured CG resources, and there are currently no CG resources available; among them, when the RSRP change exceeds the pre-configured threshold or the SDT-TAT timeout occurs, the TA expires.

[0283] Case 4: The current RSRP measurement result does not meet the RSRP threshold for performing CG-SDT.

[0284] After selecting RA-SDT or CG-SDT, the UE can explicitly instruct the network to store or release the CG resource in the following ways:

[0285] Example 1, Explicit Method 1: MAC CE

[0286] The UE generates a MAC CE to instruct the network side to release or store CG resources. The MAC carries the IE corresponding to the first indication information.

[0287] The situations in which a UE generates a MAC CE to instruct the network side to release or store CG resources include: 1. The UE has configured CG resources but uses RA SDT, for example, the UE releases CG resources due to TA failure, no CG resources are configured on the current carrier / beam, or the UE leaves the coverage of the serving cell; 2. The UE selects CG-SDT to execute the current SDT procedure, hoping to release / update / maintain the current CG resources.

[0288] The MAC CE also includes network-side actions suggested by the UE, such as releasing the currently configured CG resource, retaining the current CG resource configuration, and reconfiguring the CG resource configuration.

[0289] The MAC CE can also indicate whether the network UE has currently deleted the CG resource configuration, that is, whether the network needs to send a full configuration or a delta configuration to the UE.

[0290] The MAC CE is carried in the payload of MSG3 in four-step random access or MSG A in two-step random access, or in CG-based uplink data transmission or DG-based uplink data transmission.

[0291] Example 2, Explicit Method 2: RRC Signaling

[0292] The RRC signaling is sent in the following situations: 1. When the UE has configured CG resources but is using RA SDT, for example, the UE releases CG resources based on RSRP, no CG resources are configured on the current beam, or the UE leaves the coverage of the serving cell; 2. The UE triggers a process based on CG-SDT to release / update / maintain the current CG resources.

[0293] The RRC signaling also includes network-side actions suggested by the UE, such as releasing currently configured CG resources, retaining the current CG resource configuration, and reconfiguring CG resource configuration.

[0294] The RRC signaling can also indicate whether the network UE has currently deleted the CG resource configuration, that is, whether the network needs to send a full configuration or a delta configuration to the UE.

[0295] The RRC signaling can be a new RRC signaling, such as a CG resource release / storage signaling.

[0296] This RRC signaling can reuse existing RRC signaling, such as in an existing RRC resume request, where a new IE is added to the RRC resume request to indicate that the RRC resume request is the first indication message.

[0297] After selecting RA-SDT or CG-SDT, the UE can implicitly instruct the network side to store or release the CG resource in the following ways:

[0298] Example 3, Implicit Method 1: SDT-based Triggering Method Indicating Network

[0299] If the network has configured CG resources but the UE uses RA-SDT for this transmission, the network considers the configured CG resources unavailable and instructs the UE to release or reconfigure the CG resources.

[0300] If the network has configured CG resources and the UE uses CG-SDT for this transmission, the network considers the CG resources to be available and instructs the UE to retain or update the CG resources.

[0301] Example 4, Implicit Method 2: Indicating the Network Side Based on Preamble Packets

[0302] The network configures different preamble groups, and the UE selects the preamble based on the current CG resource usage and release status, thereby instructing the network side.

[0303] When a UE selects RA-SDT due to the release of CG resources, the UE selects the preamble in the first preamble group. After receiving the preamble, the network releases the CG resources previously configured for the UE based on the preamble. The network side can also optionally configure new CG resources for the UE.

[0304] When a UE selects RA-SDT because there are no available CG resources on the selected beam, the UE selects a preamble in the second preamble group. After receiving the preamble, the network continues to maintain the currently configured CG resources or updates the current CG resources based on the preamble.

[0305] In this embodiment of the invention, since implicit indication methods can carry less auxiliary information, they can be combined with explicit signaling to instruct the network side. For example, Embodiment 3 + Embodiment 1. The network determines whether to release the configured CG resources and how to configure the CG resources (full config or deltaconfig) based on the UE-initiated SDT method and the auxiliary information carried in the MAC CE. Similarly, Embodiment 3 + Embodiment 2, Embodiment 4 + Embodiment 2, and Embodiment 4 + Embodiment 1 can all be used in combination.

[0306] To implement the above-mentioned wireless communication method, embodiments of the present invention also provide a terminal device, the composition of which is as follows: Figure 8 As shown, the terminal device 800 includes:

[0307] The first sending unit 801 is configured to send request information to a network device; the request information is used to request the network device to configure CG resources through a target configuration method, and the CG resources are used for small data transmission.

[0308] The first receiving unit 802 is configured to acquire configuration information sent by the network device; the configuration information is used to indicate the usage mode of the CG resources by the terminal device.

[0309] In some embodiments, the target configuration method includes one of the following:

[0310] Delete CG resource configuration;

[0311] Preserve CG resource configuration;

[0312] Update CG resource configuration.

[0313] In some embodiments, the CG resources are used in one of the following ways:

[0314] Release the CG resources;

[0315] The CG resources will be retained;

[0316] CG resources updated using the network device.

[0317] In some embodiments, the terminal device further includes:

[0318] The first determining unit is configured to determine the transmission method for small data transmission based on preset conditions; the request information is further used to instruct the terminal device on the transmission method for small data transmission; the transmission method for small data transmission includes: small data transmission via CG resources or small data transmission via random access RA resources.

[0319] In some embodiments, the first determining unit is further configured to determine that small data transmission will not be performed via CG resources when at least one of the preset conditions is met:

[0320] The terminal device has not configured CG resources on the carrier or beam selected by the terminal device.

[0321] The terminal device leaves the coverage area of ​​the cell where the network device is located;

[0322] The timing lead time (TA) has failed.

[0323] The reference signal received power measured by the terminal device does not meet the reference signal received power threshold for small data transmission via CG resources;

[0324] The terminal device did not transmit data during multiple consecutive CG events;

[0325] The terminal device experienced transmission failures at multiple consecutive CG moments.

[0326] In some embodiments, when the request information indicates that small data transfer should not be performed via CG resources, the request information includes:

[0327] Reasons for not transmitting small data via CG resources; wherein, the reasons for not transmitting small data via CG resources include at least one of the following:

[0328] The terminal device has not configured CG resources on the carrier or beam selected by the terminal device.

[0329] The terminal device leaves the coverage area of ​​the cell where the network device is located;

[0330] TA failed;

[0331] The reference signal received power measured by the terminal device does not meet the reference signal received power threshold for small data transmission via CG resources;

[0332] The terminal device did not transmit data during multiple consecutive CG events;

[0333] The terminal device failed to transmit at multiple consecutive CG times;

[0334] The terminal device expects to transmit small data using RA resources;

[0335] The terminal device is expected to release CG resources.

[0336] In some embodiments, when the request information indicates small data transfer via CG resources, the request information includes:

[0337] Reasons for transmitting small data via CG resources; wherein, the reasons for transmitting small data via CG resources include at least one of the following:

[0338] The terminal device has already configured CG resources on the carrier or beam selected by the terminal device;

[0339] The terminal device is located within the coverage area of ​​the cell where the network device is located;

[0340] It works;

[0341] The reference signal received power measured by the terminal device meets the reference signal received power threshold for small data transmission via CG resources;

[0342] The terminal device transmits data during multiple consecutive CG events;

[0343] The terminal device successfully transmitted data at multiple consecutive CG moments;

[0344] The terminal device expects to transmit small amounts of data via CG resources;

[0345] The terminal device is expected to maintain or update CG resources.

[0346] In some embodiments, the method of sending the request information includes at least one of the following:

[0347] Send via Media Access Control (MAC) CE control element;

[0348] RRC signaling is transmitted via wireless link control.

[0349] In some embodiments, when the transmission method is via MAC CE, the transmission method of the MAC CE includes at least one of the following:

[0350] Transmitted in message MSG3;

[0351] Transmitted in message MSG A;

[0352] Uplink data transmission based on CG;

[0353] Uplink data transmission based on dynamic licensing DG.

[0354] In some embodiments, when the transmission method is via RRC signaling, the RRC signaling includes: an RRC recovery request, or RRC signaling other than an RRC recovery request.

[0355] In some embodiments, the terminal device further includes a second determining unit configured to determine a preamble packet before the terminal device sends request information to the network device.

[0356] In some embodiments, the second determining unit is further configured to:

[0357] When the terminal device determines that it is using the RA resource for small data transmission due to the release of the CG resource, it selects the first preamble group;

[0358] When the terminal device determines that it is using RA resources for small data transmission because the CG resources are not configured on the selected carrier or beam, it selects a second preamble packet.

[0359] In some embodiments, the request information includes a preamble packet selected by the terminal device.

[0360] This invention also provides a terminal device, including a processor and a memory for storing a computer program that can run on the processor, wherein when the processor runs the computer program, it executes the steps of the wireless communication method executed by the terminal device described above.

[0361] To implement the above-mentioned device control method, this embodiment of the invention also provides a network device, the network device having the following structure: Figure 9 As shown, network device 900 includes:

[0362] The second receiving unit 901 is configured to receive request information sent by the terminal device; the request information is used to request the network device to configure the configuration authorized CG resource through the target configuration method, and the CG resource is used for small data transmission;

[0363] The third determining unit 902 is configured to generate configuration information for the CG resource, wherein the configuration information is used to indicate the usage method of the CG resource by the terminal device;

[0364] The second sending unit 903 is configured to send the configuration information to the terminal device.

[0365] In some embodiments, the target configuration method includes one of the following:

[0366] Delete CG resource configuration;

[0367] Preserve CG resource configuration;

[0368] Update CG resource configuration.

[0369] In some embodiments, the CG resources are used in one of the following ways:

[0370] Release the CG resources;

[0371] The CG resources will be retained;

[0372] CG resources updated using the network device.

[0373] In some embodiments, the request information is further used to indicate the transmission method for small data transmission determined by the terminal device; the transmission method for small data transmission includes: small data transmission via CG resources or small data transmission via random access RA resources.

[0374] In some embodiments, when the request information indicates that small data transfer should not be performed via CG resources, the request information includes:

[0375] Reasons for not transmitting small data via CG resources; wherein, the reasons for not transmitting small data via CG resources include at least one of the following:

[0376] The terminal device has not configured CG resources on the carrier or beam selected by the terminal device.

[0377] The terminal device leaves the coverage area of ​​the cell where the network device is located;

[0378] TA failed;

[0379] The reference signal received power measured by the terminal device does not meet the reference signal received power threshold for small data transmission via CG resources;

[0380] The terminal device did not transmit data during multiple consecutive CG events;

[0381] The terminal device failed to transmit at multiple consecutive CG times;

[0382] The terminal device expects to transmit small data using RA resources;

[0383] The terminal device is expected to release CG resources.

[0384] In some embodiments, when the request information indicates small data transfer via CG resources, the request information includes:

[0385] Reasons for transmitting small data via CG resources; wherein, the reasons for transmitting small data via CG resources include at least one of the following:

[0386] The terminal device has already configured CG resources on the carrier or beam selected by the terminal device;

[0387] The terminal device is located within the coverage area of ​​the cell where the network device is located;

[0388] It works;

[0389] The reference signal received power measured by the terminal device meets the reference signal received power threshold for small data transmission via CG resources;

[0390] The terminal device transmits data during multiple consecutive CG events;

[0391] The terminal device successfully transmitted data at multiple consecutive CG moments;

[0392] The terminal device expects to transmit small amounts of data via CG resources;

[0393] The terminal device is expected to maintain or update CG resources.

[0394] In some embodiments, the method of sending the request information includes at least one of the following:

[0395] Send via Media Access Control (MAC) CE control element;

[0396] RRC signaling is transmitted via wireless link control.

[0397] In some embodiments, when the transmission method is via MAC CE, the transmission method of the MAC CE includes at least one of the following:

[0398] Transmitted in message MSG3;

[0399] Transmitted in message MSG A;

[0400] Uplink data transmission based on CG;

[0401] Uplink data transmission based on dynamic licensing DG.

[0402] In some embodiments, when the transmission method is via RRC signaling, the RRC signaling includes: an RRC recovery request, or RRC signaling other than an RRC recovery request.

[0403] In some embodiments, the request information includes a preamble packet selected by the terminal device.

[0404] In some embodiments, the preamble group includes: a first preamble group or a second preamble group; the first preamble group indicates that the terminal device uses the RA resource for small data transmission due to the release of the CG resource; the second preamble group is used to indicate that the terminal device uses the RA resource for small data transmission because the CG resource is not configured on the selected carrier or beam.

[0405] This invention also provides a network device, including a processor and a memory for storing a computer program that can run on the processor, wherein when the processor runs the computer program, it executes the steps of the device control method described above.

[0406] Figure 10 This is a schematic diagram of the hardware composition structure of an electronic device (terminal device or network device) according to an embodiment of the present invention. The electronic device 1000 includes: at least one processor 1001, a memory 1002, and at least one network interface 1004. The various components in the electronic device 1000 are coupled together through a bus system 1005. It is understood that the bus system 1005 is used to realize the connection and communication between these components. In addition to a data bus, the bus system 1005 also includes a power bus, a control bus, and a status signal bus. However, for clarity, in... Figure 10 The general labeled all buses as Bus System 1005.

[0407] It is understood that memory 1002 can be volatile memory or non-volatile memory, or both. Non-volatile memory can be ROM, Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Ferromagnetic Random Access Memory (FRAM), Flash Memory, Magnetic Surface Memory, Optical Disc, or Compact Disc Read-Only Memory (CD-ROM); Magnetic Surface Memory can be disk storage or magnetic tape storage. Volatile memory can be Random Access Memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), SyncLink Dynamic Random Access Memory (SLDRAM), and Direct Rambus Random Access Memory (DRRAM). The memory 1002 described in this embodiment is intended to include, but is not limited to, these and any other suitable types of memory.

[0408] The memory 1002 in this embodiment of the invention is used to store various types of data to support the operation of the electronic device 1000. Examples of such data include any computer program for operation on the electronic device 1000, such as application program 1022. A program implementing the method of this embodiment of the invention may be included in application program 1022.

[0409] The methods disclosed in the above embodiments of the present invention can be applied to or implemented by processor 1001. Processor 1001 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the integrated logic circuit of the hardware in processor 1001 or by instructions in the form of software. The processor 1001 may be a general-purpose processor, a digital signal processor (DSP), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. Processor 1001 can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of the present invention. A general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of the present invention can be directly manifested as being executed by a hardware decoding processor, or being executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium, which is located in memory 1002. Processor 1001 reads the information in memory 1002 and completes the steps of the aforementioned method in conjunction with its hardware.

[0410] In an exemplary embodiment, the electronic device 1000 may be implemented by one or more application-specific integrated circuits (ASICs), DSPs, programmable logic devices (PLDs), complex programmable logic devices (CPLDs), FPGAs, general-purpose processors, controllers, MCUs, MPUs, or other electronic components to perform the aforementioned method.

[0411] This invention also provides a storage medium for storing computer programs.

[0412] Optionally, the storage medium can be applied to the terminal device in the embodiments of the present invention, and the computer program causes the computer to execute the corresponding processes in the various methods of the embodiments of the present invention, which will not be described in detail here for the sake of brevity.

[0413] Optionally, the storage medium can be applied to the network device in the embodiments of the present invention, and the computer program causes the computer to execute the corresponding processes in the various methods of the embodiments of the present invention, which will not be described in detail here for the sake of brevity.

[0414] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0415] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0416] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0417] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A wireless communication method, the method comprising: The terminal device sends a request message to the network device; The request information is used to request the network device to configure authorized CG resources through a target configuration method, and the CG resources are used for small data transmission. The terminal device obtains configuration information sent by the network device; the configuration information is used to indicate how the terminal device uses the CG resources. The request information includes the reason for selecting the transmission method for small data transmission; the reason for selecting the transmission method for small data transmission is used to implicitly indicate the target configuration method for configuring CG resources; The request information is also used to instruct the terminal device on the transmission method for small data transmission; the transmission method for small data transmission includes: transmitting small data through CG resources or transmitting small data through random access RA resources; The reasons for selecting the transmission method for small data transmission include: when the request information indicates that small data transmission should not be performed through CG resources, the reasons for not performing small data transmission through CG resources; or, when the request information indicates that small data transmission should be performed through CG resources, the reasons for performing small data transmission through CG resources; the reasons for not performing small data transmission through CG resources or the reasons for performing small data transmission through CG resources are used to implicitly indicate that the target configuration method for configuring CG resources is to delete, retain, or update the CG resource configuration; Alternatively, the request information includes a preamble; the preamble group to which the preamble belongs implicitly indicates the target configuration method for configuring CG resources; the preamble group includes a first preamble group or a second preamble group, wherein the first preamble group implicitly indicates that the target configuration method for configuring CG resources is to delete CG resource configuration; and the second preamble group implicitly indicates that the target configuration method for configuring CG resources is to retain CG resource configuration or update CG resource configuration.

2. The method according to claim 1, wherein the target configuration method includes one of the following: Delete CG resource configuration; Preserve CG resource configuration; Update CG resource configuration.

3. The method according to claim 1, wherein the CG resource is used in one of the following ways: Release the CG resources; The CG resources will be retained; CG resources updated using the network device.

4. The method according to any one of claims 1 to 3, wherein before the terminal device sends request information to the network device, the method further comprises: The terminal device determines the transmission mode for small data transmission based on preset conditions.

5. The method according to claim 4, wherein the terminal device determines the transmission mode for small data transmission according to preset conditions, including: The terminal device determines not to transmit small data via CG resources when at least one of the following preset conditions is met: The terminal device has not configured CG resources on the carrier or beam selected by the terminal device. The terminal device leaves the coverage area of ​​the cell where the network device is located; The timing lead time (TA) has failed. The reference signal received power measured by the terminal device does not meet the reference signal received power threshold for small data transmission via CG resources; The terminal device did not transmit data during multiple consecutive CG events; The terminal device experienced transmission failures at multiple consecutive CG moments.

6. The method according to claim 1, wherein the reason for not transmitting small data via CG resources includes at least one of the following: The terminal device has not configured CG resources on the carrier or beam selected by the terminal device. The terminal device leaves the coverage area of ​​the cell where the network device is located; TA is invalid; The reference signal received power measured by the terminal device does not meet the reference signal received power threshold for small data transmission via CG resources; The terminal device did not transmit data during multiple consecutive CG events; The terminal device failed to transmit at multiple consecutive CG times; The terminal device expects to transmit small data using RA resources; The terminal device is expected to release CG resources.

7. The method according to claim 1 or 6, wherein the reason for not transmitting small data via CG resources implicitly indicates that the target configuration method for configuring CG resources is to delete, retain, or update CG resource configuration, including: The TA failure is used to implicitly indicate that the target configuration method for configuring CG resources is to delete the CG resource configuration or retain the CG resource configuration; or, The fact that the terminal device leaves the coverage area of ​​the cell where the network device is located implicitly indicates that the target configuration method for configuring CG resources is to update the CG resource configuration; or... The terminal device expects to transmit small data via RA resources to implicitly indicate that the target configuration method for configuring CG resources is to delete or update CG resource configuration.

8. The method according to claim 1, wherein the reason for transmitting small data via CG resources includes at least one of the following: The terminal device has already configured CG resources on the carrier or beam selected by the terminal device; The terminal device is located within the coverage area of ​​the cell where the network device is located; It works; The reference signal received power measured by the terminal device meets the reference signal received power threshold for small data transmission via CG resources; The terminal device transmits data during multiple consecutive CG events; The terminal device successfully transmitted data at multiple consecutive CG moments; The terminal device expects to transmit small amounts of data via CG resources; The terminal device is expected to maintain or update CG resources.

9. The method according to claim 1 or 8, wherein the reason for transmitting small data via CG resources implicitly indicates that the target configuration method for configuring CG resources is to delete, retain, or update CG resource configuration, including: TA is effectively used to implicitly indicate that the target configuration method for configuring CG resources is to update the CG resource configuration or retain the CG resource configuration; or, The coverage area of ​​the cell where the network device is located, where the terminal device is situated, implicitly indicates that the target configuration method for configuring CG resources is to update the CG resource configuration; or, The terminal device expects to transmit small data through CG resources to implicitly indicate that the target configuration method for configuring CG resources is to retain the CG resource configuration or update the CG resource configuration.

10. The method according to claim 1, wherein the method of sending the request information includes at least one of the following: Send via Media Access Control (MAC) CE control element; RRC signaling is transmitted via wireless link control.

11. The method according to claim 10, wherein when the transmission method is via MAC CE, the transmission method of the MAC CE includes at least one of the following: Transmitted in message MSG3; Transmitted in message MSG A; Uplink data transmission based on CG; Uplink data transmission based on dynamic licensing DG.

12. The method of claim 10, wherein in case that the sending manner is sending through RRC signaling, the RRC signaling comprises: RRC recovery request, or RRC signaling other than RRC recovery request.

13. The method according to claim 1, further comprising, before the terminal device sends request information to the network device: The terminal device determines the preamble group.

14. The method according to claim 13, wherein the terminal device determines the preamble group, comprising: When the terminal device determines that it is using the RA resource for small data transmission due to the release of the CG resource, the terminal device selects the first preamble packet; When the terminal device determines that it is using RA resources for small data transmission because the CG resources are not configured on the selected carrier or beam, the terminal device selects the second preamble packet.

15. The method according to claim 13, wherein the request information includes a preamble in the preamble group selected by the terminal device.

16. A wireless communication method, the method comprising: Network devices receive request information sent by terminal devices; The request information is used to request the network device to configure the authorized CG resource through the target configuration method, and the CG resource is used for small data transmission; The network device generates configuration information for the CG resource; the configuration information is used to indicate how the terminal device uses the CG resource. The network device sends the configuration information to the terminal device; The request information includes the reason for selecting the transmission method for small data transmission; the reason for selecting the transmission method for small data transmission is used to implicitly indicate the target configuration method for configuring CG resources; The request information is also used to instruct the terminal device on the transmission method for small data transmission; the transmission method for small data transmission includes: transmitting small data through CG resources or transmitting small data through random access RA resources; The reasons for selecting the transmission method for small data transmission include: when the request information indicates that small data transmission should not be performed through CG resources, the reasons for not performing small data transmission through CG resources; or, when the request information indicates that small data transmission should be performed through CG resources, the reasons for performing small data transmission through CG resources; the reasons for not performing small data transmission through CG resources or the reasons for performing small data transmission through CG resources are used to implicitly indicate that the target configuration method for configuring CG resources is to delete, retain, or update the CG resource configuration; Alternatively, the request information includes a preamble; the preamble group to which the preamble belongs implicitly indicates the target configuration method for configuring CG resources; the preamble group includes a first preamble group or a second preamble group, wherein the first preamble group implicitly indicates that the target configuration method for configuring CG resources is to delete CG resource configuration; and the second preamble group implicitly indicates that the target configuration method for configuring CG resources is to retain CG resource configuration or update CG resource configuration.

17. The method according to claim 16, wherein the target configuration method includes one of the following: Delete CG resource configuration; Preserve CG resource configuration; Update CG resource configuration.

18. The method according to claim 16, wherein the CG resource is used in one of the following ways: Release the CG resources; The CG resources will be retained; CG resources updated using the network device.

19. The method according to any one of claims 16 to 18, wherein the request information is further used to indicate the transmission mode determined by the terminal device for small data transmission.

20. The method of claim 16, wherein the reason for not transmitting small data via CG resources includes at least one of the following: The terminal device has not configured CG resources on the carrier or beam selected by the terminal device. The terminal device leaves the coverage area of ​​the cell where the network device is located; The timing lead time (TA) has failed. The reference signal received power measured by the terminal device does not meet the reference signal received power threshold for small data transmission via CG resources; The terminal device did not transmit data during multiple consecutive CG events; The terminal device failed to transmit at multiple consecutive CG times; The terminal device expects to transmit small data using RA resources; The terminal device is expected to release CG resources.

21. The method according to claim 16 or 20, wherein the reason for not transmitting small data via CG resources implicitly indicates that the target configuration method for configuring CG resources is to delete, retain, or update CG resource configuration, including: The TA failure is used to implicitly indicate that the target configuration method for configuring CG resources is to delete the CG resource configuration or retain the CG resource configuration; or, The fact that the terminal device leaves the coverage area of ​​the cell where the network device is located implicitly indicates that the target configuration method for configuring CG resources is to update the CG resource configuration; or... The terminal device expects to transmit small data via RA resources to implicitly indicate that the target configuration method for configuring CG resources is to delete or update CG resource configuration.

22. The method according to claim 16, The reasons for transmitting small data via CG resources include at least one of the following: The terminal device has already configured CG resources on the carrier or beam selected by the terminal device; The terminal device is located within the coverage area of ​​the cell where the network device is located; It works; The reference signal received power measured by the terminal device meets the reference signal received power threshold for small data transmission via CG resources; The terminal device transmits data during multiple consecutive CG events; The terminal device successfully transmitted data at multiple consecutive CG moments; The terminal device expects to transmit small amounts of data via CG resources; The terminal device is expected to maintain or update CG resources.

23. The method according to claim 16 or 22, wherein the reason for small data transmission via CG resources implicitly indicates that the target configuration method for configuring CG resources is to delete, retain, or update CG resource configuration, including: TA is effectively used to implicitly indicate that the target configuration method for configuring CG resources is to update the CG resource configuration or retain the CG resource configuration; or, The coverage area of ​​the cell where the network device is located, where the terminal device is situated, implicitly indicates that the target configuration method for configuring CG resources is to update the CG resource configuration; or, The terminal device expects to transmit small data through CG resources to implicitly indicate that the target configuration method for configuring CG resources is to retain the CG resource configuration or update the CG resource configuration.

24. The method according to claim 16, wherein the method of sending the request information includes at least one of the following: Send via Media Access Control (MAC) CE control element; RRC signaling is transmitted via wireless link control.

25. The method according to claim 24, wherein when the transmission method is via MAC CE, the transmission method of the MAC CE includes at least one of the following: Transmitted in message MSG3; Transmitted in message MSG A; Uplink data transmission based on CG; Uplink data transmission based on dynamic licensing DG.

26. The method of claim 24, wherein in case the transmission mode is transmission through RRC signaling, the RRC signaling comprises: RRC recovery request, or RRC signaling other than RRC recovery request.

27. The method of claim 16, the request information comprising: The terminal device selects the preamble from the preamble group.

28. The method of claim 27, wherein the preamble block comprises: First preamble block or second preamble block; The first preamble packet indicates that the terminal device uses the RA resource for small data transmission due to the release of the CG resource; the second preamble packet indicates that the terminal device uses the RA resource for small data transmission because the CG resource is not configured on the selected carrier or beam.

29. A terminal device, the terminal device comprising: The first sending unit is configured to send request information to the network device; The request information is used to request the network device to configure authorized CG resources through a target configuration method, and the CG resources are used for small data transmission. The first receiving unit is configured to acquire configuration information sent by the network device; the configuration information is used to indicate the usage method of the CG resources by the terminal device. The request information includes the reason for selecting the transmission method for small data transmission; the reason for selecting the transmission method for small data transmission is used to implicitly indicate the target configuration method for configuring CG resources; The request information is also used to instruct the terminal device on the transmission method for small data transmission; the transmission method for small data transmission includes: transmitting small data through CG resources or transmitting small data through random access RA resources; The reasons for selecting the transmission method for small data transmission include: when the request information indicates that small data transmission should not be performed through CG resources, the reasons for not performing small data transmission through CG resources; or, when the request information indicates that small data transmission should be performed through CG resources, the reasons for performing small data transmission through CG resources; the reasons for not performing small data transmission through CG resources or the reasons for performing small data transmission through CG resources are used to implicitly indicate that the target configuration method for configuring CG resources is to delete, retain, or update the CG resource configuration; Alternatively, the request information includes a preamble; the preamble group to which the preamble belongs implicitly indicates the target configuration method for configuring CG resources; the preamble group includes a first preamble group or a second preamble group, wherein the first preamble group implicitly indicates that the target configuration method for configuring CG resources is to delete CG resource configuration; and the second preamble group implicitly indicates that the target configuration method for configuring CG resources is to retain CG resource configuration or update CG resource configuration.

30. The terminal device according to claim 29, wherein the target configuration method includes one of the following: Delete CG resource configuration; Preserve CG resource configuration; Update CG resource configuration.

31. The terminal device according to claim 29, wherein the CG resource is used in one of the following ways: Release the CG resources; The CG resources will be retained; CG resources updated using the network device.

32. The terminal device according to any one of claims 29 to 31, wherein the terminal device further comprises: The first determining unit is configured to determine the transmission mode for small data transmission based on preset conditions.

33. The terminal device according to claim 32, wherein the first determining unit is further configured to determine that small data transmission will not be performed through CG resources when at least one of the preset conditions is met: The terminal device has not configured CG resources on the carrier or beam selected by the terminal device. The terminal device leaves the coverage area of ​​the cell where the network device is located; The timing lead time (TA) has failed. The reference signal received power measured by the terminal device does not meet the reference signal received power threshold for small data transmission via CG resources; The terminal device did not transmit data during multiple consecutive CG events; The terminal device experienced transmission failures at multiple consecutive CG moments.

34. The terminal device according to claim 29, wherein the reason for not transmitting small data via CG resources includes at least one of the following: The terminal device has not configured CG resources on the carrier or beam selected by the terminal device. The terminal device leaves the coverage area of ​​the cell where the network device is located; TA is invalid; The reference signal received power measured by the terminal device does not meet the reference signal received power threshold for small data transmission via CG resources; The terminal device did not transmit data during multiple consecutive CG events; The terminal device failed to transmit at multiple consecutive CG times; The terminal device expects to transmit small data using RA resources; The terminal device is expected to release CG resources.

35. The terminal device according to claim 29 or 34, wherein the reason for not transmitting small data via CG resources implicitly indicates that the target configuration method for configuring CG resources is to delete, retain, or update CG resource configuration, including: The TA failure is used to implicitly indicate that the target configuration method for configuring CG resources is to delete the CG resource configuration or retain the CG resource configuration; or, The fact that the terminal device leaves the coverage area of ​​the cell where the network device is located implicitly indicates that the target configuration method for configuring CG resources is to update the CG resource configuration; or... The terminal device expects to transmit small data via RA resources to implicitly indicate that the target configuration method for configuring CG resources is to delete or update CG resource configuration.

36. The terminal device according to claim 29, wherein the reason for transmitting small data via CG resources includes at least one of the following: The terminal device has already configured CG resources on the carrier or beam selected by the terminal device; The terminal device is located within the coverage area of ​​the cell where the network device is located; It works; The reference signal received power measured by the terminal device meets the reference signal received power threshold for small data transmission via CG resources; The terminal device transmits data during multiple consecutive CG events; The terminal device successfully transmitted data at multiple consecutive CG moments; The terminal device expects to transmit small amounts of data via CG resources; The terminal device is expected to maintain or update CG resources.

37. The terminal device according to claim 29 or 36, wherein the reason for transmitting small data via CG resources implicitly indicates that the target configuration method for configuring CG resources is to delete, retain, or update CG resource configuration, including: TA is effectively used to implicitly indicate that the target configuration method for configuring CG resources is to update the CG resource configuration or retain the CG resource configuration; or, The coverage area of ​​the cell where the network device is located, where the terminal device is situated, implicitly indicates that the target configuration method for configuring CG resources is to update the CG resource configuration; or, The terminal device expects to transmit small data through CG resources to implicitly indicate that the target configuration method for configuring CG resources is to retain the CG resource configuration or update the CG resource configuration.

38. The terminal device according to claim 29, wherein the method of sending the request information includes at least one of the following: Send via Media Access Control (MAC) CE control element; RRC signaling is transmitted via wireless link control.

39. The terminal device according to claim 38, wherein when the transmission method is transmission via MAC CE, the transmission method of the MAC CE includes at least one of the following: Transmitted in message MSG3; Transmitted in message MSG A; Uplink data transmission based on CG; Uplink data transmission based on dynamic licensing DG.

40. The terminal device of claim 38, wherein in case that the sending mode is sending through RRC signaling, the RRC signaling comprises: RRC recovery request, or RRC signaling other than RRC recovery request.

41. The terminal device according to claim 29, further comprising: The second determining unit is configured to determine the preamble packet before the terminal device sends a request message to the network device.

42. The terminal device according to claim 41, wherein the second determining unit is further configured to: When the terminal device determines that it is using the RA resource for small data transmission due to the release of the CG resource, it selects the first preamble group. When the terminal device determines that it is using RA resources for small data transmission because the CG resources are not configured on the selected carrier or beam, it selects the second preamble packet.

43. The terminal device according to claim 41, wherein the request information includes a preamble in the preamble group selected by the terminal device.

44. A network device, comprising: The second receiving unit is configured to receive request information sent by the terminal device; The request information is used to request the network device to configure the authorized CG resource through the target configuration method, and the CG resource is used for small data transmission; The third determining unit is configured to generate configuration information for the CG resource, wherein the configuration information is used to indicate the usage method of the CG resource by the terminal device; The second sending unit is configured to send the configuration information to the terminal device; The request information includes the reason for selecting the transmission method for small data transmission; the reason for selecting the transmission method for small data transmission is used to implicitly indicate the target configuration method for configuring CG resources; The request information is also used to instruct the terminal device on the transmission method for small data transmission; the transmission method for small data transmission includes: transmitting small data through CG resources or transmitting small data through random access RA resources; The reasons for selecting the transmission method for small data transmission include: when the request information indicates that small data transmission should not be performed through CG resources, the reasons for not performing small data transmission through CG resources; or, when the request information indicates that small data transmission should be performed through CG resources, the reasons for performing small data transmission through CG resources; the reasons for not performing small data transmission through CG resources or the reasons for performing small data transmission through CG resources are used to implicitly indicate that the target configuration method for configuring CG resources is to delete, retain, or update the CG resource configuration; Alternatively, the request information includes a preamble; the preamble group to which the preamble belongs implicitly indicates the target configuration method for configuring CG resources; the preamble group includes a first preamble group or a second preamble group, wherein the first preamble group implicitly indicates that the target configuration method for configuring CG resources is to delete CG resource configuration; and the second preamble group implicitly indicates that the target configuration method for configuring CG resources is to retain CG resource configuration or update CG resource configuration.

45. The network device according to claim 44, wherein the target configuration method includes one of the following: Delete CG resource configuration; Preserve CG resource configuration; Update CG resource configuration.

46. ​​The network device according to claim 44, wherein the CG resource is used in one of the following ways: Release the CG resources; The CG resources will be retained; CG resources updated using the network device.

47. The network device according to any one of claims 44 to 46, wherein the request information is further used to indicate the transmission mode for small data transmission determined by the terminal device.

48. The network device according to claim 44, wherein the reason for not transmitting small data via CG resources includes at least one of the following: The terminal device has not configured CG resources on the carrier or beam selected by the terminal device. The terminal device leaves the coverage area of ​​the cell where the network device is located; The timing lead time (TA) has failed. The reference signal received power measured by the terminal device does not meet the reference signal received power threshold for small data transmission via CG resources; The terminal device did not transmit data during multiple consecutive CG events; The terminal device failed to transmit at multiple consecutive CG times; The terminal device expects to transmit small data using RA resources; The terminal device is expected to release CG resources.

49. The network device according to claim 44 or 48, wherein the reason for not transmitting small data via CG resources implicitly indicates that the target configuration method for configuring CG resources is to delete, retain, or update CG resource configuration, including: The TA failure is used to implicitly indicate that the target configuration method for configuring CG resources is to delete the CG resource configuration or retain the CG resource configuration; or, The fact that the terminal device leaves the coverage area of ​​the cell where the network device is located implicitly indicates that the target configuration method for configuring CG resources is to update the CG resource configuration; or... The terminal device expects to transmit small data via RA resources to implicitly indicate that the target configuration method for configuring CG resources is to delete or update CG resource configuration.

50. The network device according to claim 44, wherein the reason for transmitting small data via CG resources includes at least one of the following: The terminal device has already configured CG resources on the carrier or beam selected by the terminal device; The terminal device is located within the coverage area of ​​the cell where the network device is located; It works; The reference signal received power measured by the terminal device meets the reference signal received power threshold for small data transmission via CG resources; The terminal device transmits data during multiple consecutive CG events; The terminal device successfully transmitted data at multiple consecutive CG moments; The terminal device expects to transmit small amounts of data via CG resources; The terminal device is expected to maintain or update CG resources.

51. The network device according to claim 44 or 50, wherein the reason for transmitting small data via CG resources implicitly indicates that the target configuration method for configuring CG resources is to delete, retain, or update CG resource configuration, including: TA is effectively used to implicitly indicate that the target configuration method for configuring CG resources is to update the CG resource configuration or retain the CG resource configuration; or, The coverage area of ​​the cell where the network device is located, where the terminal device is situated, implicitly indicates that the target configuration method for configuring CG resources is to update the CG resource configuration; or, The terminal device expects to transmit small data through CG resources to implicitly indicate that the target configuration method for configuring CG resources is to retain the CG resource configuration or update the CG resource configuration.

52. The network device according to claim 44, wherein the method of sending the request information includes at least one of the following: Send via Media Access Control (MAC) CE control element; RRC signaling is transmitted via wireless link control.

53. The network device according to claim 52, wherein when the transmission method is via MAC CE, the transmission method of the MAC CE includes at least one of the following: Transmitted in message MSG3; Transmitted in message MSG A; Uplink data transmission based on CG; Uplink data transmission based on dynamic licensing DG.

54. The network device according to claim 52, wherein when the transmission method is transmission via RRC signaling, the RRC signaling includes: RRC recovery request, or RRC signaling other than RRC recovery request.

55. The network device according to claim 44, wherein the request information includes a preamble in the preamble packet selected by the terminal device.

56. The network device according to claim 55, wherein the preamble packet comprises: First preamble block or second preamble block; The first preamble packet indicates that the terminal device uses the RA resource for small data transmission due to the release of the CG resource; the second preamble packet indicates that the terminal device uses the RA resource for small data transmission because the CG resource is not configured on the selected carrier or beam.

57. A terminal device, comprising a processor and a memory for storing a computer program capable of running on the processor, wherein, When the processor is used to run the computer program, it performs the steps of the method according to any one of claims 1 to 15.

58. A network device, comprising a processor and a memory for storing a computer program capable of running on the processor, wherein, When the processor is used to run the computer program, it performs the steps of the method according to any one of claims 16 to 28.

59. A storage medium storing an executable program, which, when executed by a processor, implements the wireless communication method according to any one of claims 1 to 15, or the wireless communication method according to any one of claims 16 to 28.

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