WO2022028267A1

WO2022028267A1 - Method and apparatus for indicating data transmission

Info

Publication number: WO2022028267A1
Application number: PCT/CN2021/108475
Authority: WO
Inventors: 张梦晨; 薛祎凡; 徐海博
Original assignee: 华为技术有限公司
Priority date: 2020-08-03
Filing date: 2021-07-26
Publication date: 2022-02-10

Abstract

Provided are a method and apparatus for indicating data transmission, which relate to the technical field of communications, and are used for improving, by means of indicating, to a terminal, a transmission mode of and a transmission resource for data to be transmitted, the quality of said data that is subsequently transmitted by the terminal. The solution is applied to a terminal and comprises: sending first small data and a first message to a network device, wherein the first message is used for indicating that a terminal subsequently has data to be transmitted; receiving first information and/or second information from the network device, wherein the first information is used for indicating a transmission mode of said data, and the second information indicates a transmission resource for transmitting said data; and sending said data to the network device according to the transmission mode and/or the transmission resource.

Description

A method and device for indicating data transmission

This application is required to be submitted to the State Intellectual Property Office on August 3, 2020, the application number is 202010768923.7, the application name is "an instruction method, terminal and network equipment for small packet transmission", and August 14, 2020 Submitted to the State Intellectual Property Office Bureau, the application number is 202010828587.0, and the application title is "a method and device for indicating data transmission". The priority of the Chinese patent application, the entire content of which is incorporated in this application by reference.

technical field

The embodiments of the present application relate to the field of communication technologies, and in particular, to a method, an apparatus, and a system for indicating data transmission.

Background technique

In the 5th generation mobile networks (5G) new radio (NR) or long time evolution (LTE) system, the radio resource control (Radio Resource Control, RRC)-connection ( The terminal in the CONNECTED) state can send uplink data to the network device. Therefore, if the terminal is currently in the RRC-inactive (RRC_INACTIVE) state or the terminal is currently in the RRC-idle (RRC_IDLE) state, in order to send uplink data to the network device, the terminal can enter the RRC_CONNECTED state from the RRC_INACTIVE state or the RRC_IDLE state, and then send the The network device sends uplink data.

However, in some scenarios, the size of the data packet that the terminal in the RRC_INACTIVE state or the RRC_IDLE state needs to transmit is smaller than the preset threshold (this application may be called: small packet data, small data), and the terminal needs to enter the RRC_CONNECTED state. Signaling is even larger than small data, resulting in unnecessary power consumption and signaling overhead. Therefore, in order to help the terminal save power consumption and signaling overhead, it can support the terminal to perform small data transmission when it does not enter the RRC_CONNECTED state.

For example, the terminal may send small packets of data to the network device through message 3 in the four-step random access process or message A in the two-step random access process, or using preconfigured uplink resources configured by the network device for the terminal. However, after the terminal sends the small packet of data to the network device, there may still be subsequent small data transmission requirements. The current prior art does not involve how the terminal determines the transmission mode for transmitting the subsequent small data.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a method and an apparatus for indicating data transmission, so as to improve the quality of the data to be transmitted subsequently transmitted by the terminal by indicating the transmission mode and transmission resources of the data to be transmitted to the terminal.

In order to achieve the above purpose, the embodiments of the present application provide the following technical solutions:

In a first aspect, an embodiment of the present application provides a method for indicating data transmission, which is applied to a terminal. The method includes: the terminal sends a first small packet of data and a first message to a network device, where the first message is used to indicate that the terminal exists subsequently data to be transmitted. The terminal receives the first information and/or the second information from the network device. The first information is used to indicate the transmission mode of the data to be transmitted, and the second information is used to indicate the transmission resource of the data to be transmitted. The terminal sends the data to be transmitted to the network device according to the transmission mode and/or transmission resources.

The embodiment of the present application provides a method for indicating data transmission. Because in the prior art, if the network device does not indicate the transmission mode of the subsequent data to be transmitted to the terminal, there may be a possibility that the terminal does not know the subsequent transmission mode and preferentially uses preconfigured resources In the case of transmitting data to be transmitted, but if the preconfigured resource is unavailable, if the terminal does not know that the preconfigured resource is unavailable, and blindly uses it to transmit data, it may cause data transmission failure. Therefore, in this method, the In the case where the terminal sends the first small packet of data to the network device, and the network device determines according to the first message that the terminal has subsequent data to be transmitted, then the network device sends one or more of the first information and the second information to the terminal, so that The terminal may determine the transmission mode and/or transmission resource of the data to be transmitted subsequently sent to the network device. On the one hand, the terminal adopts the transmission mode and/or transmission resources indicated by the network device to avoid data transmission failure caused by the terminal blindly using preconfigured resources to transmit data to be transmitted, thereby ensuring the reliability of subsequent data transmission and improving the data transmission of the terminal. quality. On the other hand, the terminal transmits the data to be transmitted to the network device through the transmission mode and/or transmission resource indicated by the network device, so that the network device can determine the location where the data to be transmitted is received.

In a possible implementation manner, the data to be transmitted is the second packet data, and the first packet data and the second packet data are data divided by the first data.

In a possible implementation manner, the data to be transmitted is the second data, and the second data and the first packet data are data divided from the first data.

In a possible implementation manner, the first small packet of data and the data to be transmitted come from different data packets.

In a possible implementation manner, the terminal receiving the first information and/or the second information from the network device includes: the terminal receiving the first information and the second information from the network device. The first information is used to indicate that the data to be transmitted is transmitted by the dynamic scheduling method, and the second information is used to indicate the transmission resources allocated for the dynamic scheduling method. It is convenient for the terminal to transmit the data to be transmitted according to the dynamic scheduling method.

In a possible implementation manner, the terminal receiving the first information and/or the second information from the network device includes: receiving first information from the network device, where the first information is used to indicate the transmission mode of the data to be transmitted, The first information is also used to indicate the transmission resource of the data to be transmitted. The purpose of using one piece of information to indicate both the dynamic scheduling mode and the transmission resources of the data to be transmitted can be achieved.

In a possible implementation manner, the method provided by the embodiment of the present application further includes: starting the first timer when the terminal receives the first information. During the running process of the first timer, stop using the first preconfigured resource to transmit the data to be transmitted. Wherein, the first preconfigured resource is a shared resource, or the first preconfigured resource is a non-shared resource. By starting the first timer, the terminal can be prevented from transmitting data to be transmitted in the first preconfigured resource.

In a possible implementation manner, the first information is used to indicate a transmission mode of the data to be transmitted, and the first information is also used to indicate a transmission resource of the data to be transmitted, including: the first information is information in a first format, the first Format is used to indicate how the data to be transmitted is transmitted. The information in the first format carries a first field, where the first field is used to indicate the transmission resource of the data to be transmitted.

In a possible implementation manner, the method provided by the embodiment of the present application further includes: the terminal receives the first configuration information and/or the second configuration information sent by the network device. The first configuration information is used to configure the first preconfigured resource. The second configuration information is used to indicate the timing duration of the first timer.

In a possible implementation manner, the method provided by the embodiment of the present application further includes: the terminal receives third configuration information from the network device that is used to indicate the timing duration for updating the first timer, and the third configuration information is carried in the wireless resource Control RRC release message. The terminal can be made to determine to resume the use of the first preconfigured resource subsequently.

In a possible implementation manner, the first information indicates that the data to be transmitted is transmitted by initiating a random access process, and the terminal sends the data to be transmitted to the network device according to the transmission method, including: the terminal broadcasts the data to be transmitted through the network device during the random access process. The random access resource sends data to be transmitted to the network device.

In a possible implementation manner, the first information is used to indicate a transmission resource, and the transmission resource is not a preconfigured resource of the terminal. The terminal sends the data to be transmitted to the network device according to the transmission resource, including: in the random access process, the transmission resource Send data to be transmitted to the network device. In this manner, the terminal can be implicitly instructed to use the random access procedure to send the data to be transmitted.

In a possible implementation manner, the first information is used to instruct the terminal to transmit the data to be transmitted by initiating a random access procedure, and the second information is used to instruct the resource for sending the random access preamble and the resource for sending the data to be transmitted. The transmission mode and transmission resource sending the data to be transmitted to the network device includes: in the random access process, sending the random access preamble through the resource for sending the random access preamble indicated by the second information, and sending the to-be-transmitted data indicated by the second information The data resource sends the data to be transmitted to the network device.

In a possible implementation manner, the first information is used to instruct the terminal to transmit the data to be transmitted by initiating a random access procedure, the second information is used to indicate the resource for sending the data to be transmitted, and the terminal sends the data to the network device according to the transmission method and transmission resources Sending the data to be transmitted includes: during the random access process, the terminal sends the random access preamble through the random access resource broadcast by the network device, and sends the data to be transmitted to the network device through the resource for sending the data to be transmitted indicated by the second information.

In a possible implementation manner, the transmission mode indicated by the first information is to transmit data to be transmitted by means of pre-configured resources, and the second information is used by the terminal to determine the target pre-configured resource in one or more sets of pre-configured resources of the terminal. As transmission resources, the preconfigured resources are periodic resources.

In a possible implementation manner, the second information indicates information of the target preconfigured resource. This enables the terminal to explicitly transmit the target preconfigured resource of the data to be transmitted.

In a possible implementation manner, the second information includes at least one bit associated with each set of preconfigured resources in one or more sets of preconfigured resources of the terminal, and at least one bit associated with any set of preconfigured resources is used to indicate Whether any set of preconfigured resources is available. A bit sequence may be employed to enable the terminal to determine which preconfigured resources are available and which are unavailable.

In a possible implementation manner, the second information indicates information of unavailable preconfigured resources in one or more sets of preconfigured resources of the terminal. This enables the terminal to determine the information of the available pre-configured resources according to the information of the unavailable pre-configured resources in one or more sets of pre-configured resources. Then, the target preconfigured resource is determined according to the information of the available preconfigured resources.

In a possible implementation manner, the time domain position of the target preconfigured resource is located after the first time point, and the first time point is determined by the time and offset value at which the terminal receives the feedback information from the network device, and the feedback information is used for Indicates that the network device successfully receives the first small packet of data, and the time is before the first time point.

In a possible implementation manner, the first information is carried in a second message, the second message includes a second field and a third field, the second field is used to indicate the first information, and the third field is used to indicate that the transmission mode is The type of random access procedure through the random access procedure.

In a possible implementation manner, the first information is carried in a second message, the second message includes a second field, and the second field is used to indicate the transmission mode and the random access process when the transmission mode is random access type.

In a possible implementation manner, the message carrying the first information is an RRC message, or downlink control information DCI or a medium access control unit MAC CE, and the message carrying the second information is an RRC message, or DCI or MAC CE.

In a possible implementation manner, sending the first small packet of data and the first message by the terminal to the network device includes: in the RRC-disconnected state, the terminal sends the first small packet of data and the first message to the network device.

In a second aspect, an embodiment of the present application provides a data transmission method, including: a network device receiving a first small packet of data and a first message from a terminal. The first message is used to indicate that the terminal has data to be transmitted subsequently. The network device sends the first information and/or the second information to the terminal, where the first information is used to indicate the transmission mode of the data to be transmitted. The second information is used to indicate a transmission resource for transmitting data to be transmitted. The network device receives the to-be-transmitted data transmitted by the terminal using the transmission mode and/or on the transmission resource.

In a possible implementation manner, the network device sending the first information and/or the second information to the terminal includes: the network device sending the first information and the second information to the terminal. The first information is used to indicate that the data to be transmitted is transmitted by the dynamic scheduling method, and the second information is used to indicate the transmission resources allocated for the dynamic scheduling method.

In a possible implementation manner, sending the first information and/or the second information to the terminal by the network device includes: sending the first information to the terminal by the network device, where the first information is used to indicate the transmission mode of the data to be transmitted, and the first information is sent to the terminal. A piece of information is also used to indicate the transmission resource of the data to be transmitted. For example, the first information includes a first information element and a second information element, where the first information element is used to indicate a transmission mode of the data to be transmitted. The second information element is used to indicate the transmission resource of the data to be transmitted.

In a possible implementation manner, the first information is used to indicate a transmission mode of the data to be transmitted, and the first information is also used to indicate a transmission resource of the data to be transmitted, including: the first information is information in a first format, the first Format is used to indicate how the data to be transmitted is transmitted. The information in the first format carries a first field, and the first field is used to indicate the transmission resource of the data to be transmitted.

In a possible implementation manner, the method provided by the embodiment of the present application further includes: the network device sends the first configuration information and/or the second configuration information to the terminal. The first configuration information is used to configure the first preconfigured resource. The second configuration information is used to indicate the timing duration of the first timer.

In a possible implementation manner, the method provided by this embodiment of the present application further includes: the network device sends third configuration information to the terminal, where the third configuration information is used to indicate the timing for updating the first timer, and the third configuration information carries In the radio resource control RRC release message.

In a possible implementation manner, the sending of the first information and/or the second information by the network device to the terminal includes: the network device sends first information to the terminal, where the first information is used to indicate that the transmission to be transmitted by initiating a random access procedure is transfer data. Alternatively, the first information is used to indicate transmission resources, and the transmission resources are not preconfigured resources of the terminal.

In a possible implementation manner, the network device sending the first information and/or the second information to the terminal includes: the network device sending the first information and the second information to the terminal. Alternatively, sending the first information and/or the second information by the network device to the terminal includes: the network device sending the second information to the terminal. The first information is used to instruct the terminal to transmit the data to be transmitted by initiating a random access procedure, the second information is used to instruct the resources to send the random access preamble and the resources to send the data to be transmitted, or the second information is used to instruct the transmission to be transmitted A resource for transferring data.

In a possible implementation manner, the terminal does not have preconfigured resources capable of transmitting the data to be transmitted.

In a possible implementation manner, the terminal has preconfigured resources capable of transmitting data to be transmitted, and the network device sends the first information and/or the second information to the terminal, including: the network device sends the first information and the second information to the terminal . Or the network device sending the first information and/or the second information to the terminal includes: the network device sending the second information to the terminal. The transmission mode indicated by the first information is to transmit data to be transmitted by means of pre-configured resources, and the second information is used by the terminal to determine that the target pre-configured resources in one or more sets of pre-configured resources of the terminal are used as transmission resources, and the pre-configured resources is a periodic resource.

In a possible implementation manner, the second information indicates information of the target preconfigured resource. Alternatively, the second information includes at least one bit associated with each set of preconfigured resources in one or more sets of preconfigured resources of the terminal, and at least one bit associated with any set of preconfigured resources is used to indicate whether the preconfigured resources are available. Or, the second information indicates information of unavailable preconfigured resources in one or more sets of preconfigured resources of the terminal.

In a possible implementation manner, the first information is carried in a second message, the second message includes a second field and a third field, the second field is used to indicate the first information, and the third field is used to indicate that the transmission mode is The type of random access procedure through the random access procedure. Or, the first information is carried in a second message, the second message includes a second field, the second field is used to indicate the transmission mode, and the second field is also used to indicate the type of random access procedure when the transmission mode is random access .

In a possible implementation manner, the message carrying the first information is an RRC message, or DCI or MAC CE, and the message carrying the second information is an RRC message, or DCI or MAC CE.

In a possible implementation manner, the terminal is in a radio resource control RRC-disconnected state.

In a third aspect, an embodiment of the present application provides a data transmission method, including: in a radio resource control RRC-disconnected state, a terminal sends a first small packet of data to a network device. Wherein, the terminal subsequently has data to be transmitted. The terminal determines a target preconfigured resource from one or more sets of preconfigured resources of the terminal according to the resource corresponding to the first packet data. The terminal sends the data to be transmitted to the network device on the target preconfigured resource.

In a possible implementation manner, the data to be transmitted is the second small packet data, and the first small packet data and the second small packet data are data divided from the first data. Alternatively, the data to be transmitted is the second data, and the second data and the first packet data are data divided from the first data. Alternatively, the first small packet of data and the data to be transmitted come from different data packets.

In a possible implementation manner, the resource corresponding to the first small packet of data is the random access preamble or the resource for sending the random access preamble, and the random access preamble is the random access preamble used in the random access process of sending the first small packet of data Enter the leading. The terminal determines the target preconfigured resource from one or more sets of preconfigured resources of the terminal according to the resource corresponding to the first packet data, including: the terminal determines an association relationship, and the association relationship at least includes: a random access preamble and one or more sets of The association relationship between the first preconfigured resources in the preconfigured resources, or the association relationship between the resource for sending the random access preamble and the first preconfigured resource. The terminal determines the first preconfigured resource as the target preconfigured resource according to the random access preamble or the resource for sending the random access preamble, and the association relationship.

In a possible implementation manner, the terminal determining the association relationship includes: the terminal pre-stores the association relationship. Or, the terminal receives the first message from the network device, where the first message includes the association relationship.

In a possible implementation manner, the association relationship is determined by the index of the random access preamble and the number of one or more sets of preconfigured resources.

In a possible implementation manner, the resource corresponding to the first small packet of data is the time-frequency resource used for sending the message of the first small packet of data in the random access process. Determining the target pre-configured resource in the set or multiple sets of pre-configured resources includes: the terminal determines the pre-configured resource that has the same time-frequency position as the time-frequency resource in the one or more sets of pre-configured resources as the target pre-configured resource; or, the terminal A preconfigured resource having the same index as the time-frequency resource in one or more sets of preconfigured resources is determined as the target preconfigured resource.

In a possible implementation manner, the resource corresponding to the first small packet data is a first preconfigured resource for transmitting the first small packet data, the first preconfigured resource is a periodic resource, and the terminal according to the resource corresponding to the first small packet data, from Determining the target preconfigured resource from one or more sets of preconfigured resources of the terminal includes: the terminal determining the first preconfigured resource after the first preconfigured resource for transmitting the first small packet data and after at least one cycle as the target preconfigured resource resource, and the period is the period of the first preconfigured resource.

In a possible implementation manner, the resource corresponding to the first small packet of data is the first preconfigured resource for transmitting the first small packet of data, and the terminal selects one or more sets of preconfigured resources from the terminal according to the resource corresponding to the first small packet of data Determining the target preconfigured resource in the process includes: the terminal determines the second preconfigured resource from one or more sets of preconfigured resources as the target preconfigured resource, and the first preconfigured resource and the second preconfigured resource are different sets of preconfigured resources .

In a fourth aspect, an embodiment of the present application provides a communication method. The method includes: a network device sends a broadcast message, and the broadcast message includes an association relationship. The association relationship includes at least the relationship between the random access preamble and the first preconfigured resource. Or, the association relationship includes at least the relationship between the resource for sending the random access preamble and the first preconfigured resource. The random access preamble is a random access preamble used by the terminal in the random access process of sending the first small packet of data.

In a fifth aspect, an embodiment of the present application provides a communication device. The communication device can implement the first aspect or the method in any possible implementation manner of the first aspect, and thus can also implement the first aspect or any possible implementation manner of the first aspect. Beneficial effects in implementation. The communication device may be a terminal, or may be a device that supports the terminal to implement the method in the first aspect or any possible implementation manner of the first aspect, for example, a chip applied to the terminal. The communication device may implement the above method through software, hardware, or through hardware executing corresponding software.

In an example, the communication device is a terminal or a chip or a chip system applied in the terminal, the communication device includes: a communication unit, and a processing unit, wherein the communication unit is used for receiving or sending information/data. Processing unit for processing information/data. The communication unit is used to send the first small packet of data and a first message to the network device, where the first message is used to indicate that the terminal has data to be transmitted subsequently, and is used to receive the first information and/or the second message from the network device. information. The first information is used to indicate the transmission mode of the data to be transmitted, and the second information is used to indicate the transmission resource of the data to be transmitted. The processing unit is configured to send the data to be transmitted to the network device through the communication unit according to the transmission mode and/or transmission resource.

In a possible implementation manner, the communication unit, configured to receive the first information and/or the second information from the network device, includes: a communication unit, configured to receive the first information and the second information from the network device. The first information is used to indicate that the data to be transmitted is transmitted by the dynamic scheduling method, and the second information is used to indicate the transmission resources allocated for the dynamic scheduling method. It is convenient for the terminal to transmit the data to be transmitted according to the dynamic scheduling method.

In a possible implementation manner, the communication unit, configured to receive the first information and/or the second information from the network device, includes: a communication unit, configured to receive the first information from the network device, the first information using In order to indicate the transmission mode of the data to be transmitted, the first information is also used to indicate the transmission resource of the data to be transmitted.

In a possible implementation manner, the communication unit is further configured to start the first timer when the first information is received. During the running process of the first timer, the processing unit is further configured to stop using the first preconfigured resource to transmit the data to be transmitted. Wherein, the first preconfigured resource is a shared resource, or the first preconfigured resource is a non-shared resource.

In a possible implementation manner, the communication unit is further configured to receive the first configuration information and/or the second configuration information sent by the network device. The first configuration information is used to configure the first preconfigured resource. The second configuration information is used to indicate the timing duration of the first timer.

In a possible implementation manner, the communication unit is further configured to receive third configuration information from the network device for indicating the timing duration for updating the first timer, where the third configuration information is carried in the radio resource control RRC release message . The terminal can be made to determine to resume the use of the first preconfigured resource subsequently.

In a possible implementation manner, the first information indicates that the data to be transmitted is transmitted by initiating a random access process, and the processing unit is configured to use the random access resource broadcast by the communication unit on the network device to transmit the data to the network device during the random access process. Send the data to be transmitted.

In a possible implementation manner, the first information is used to indicate a transmission resource, and the transmission resource is not a preconfigured resource of the terminal, and the processing unit is configured to send the transmission resource to the network device through the communication unit during the random access process. transfer data. In this manner, the terminal can be implicitly instructed to use the random access procedure to send the data to be transmitted.

In a possible implementation manner, the first information is used to instruct the terminal to transmit the data to be transmitted by initiating a random access procedure, the second information is used to indicate the resources for sending the random access preamble and the resources for sending the data to be transmitted, and the processing unit is used to send the random access preamble on the resource indicated by the second information to send the random access preamble during the random access process, and use the communication unit to send the data to be transmitted on the resource indicated by the second information to the network The device sends the data to be transmitted.

In a possible implementation manner, the first information is used to instruct the terminal to transmit the data to be transmitted by initiating a random access procedure, the second information is used to indicate a resource for sending the data to be transmitted, and the processing unit is used to transmit the data to be transmitted during the random access procedure. The random access preamble is sent by using the random access resource broadcast by the communication unit on the network device, and the data to be transmitted is sent to the network device by using the resource for sending the data to be transmitted indicated by the communication unit in the second information.

Exemplarily, when the communication device is a chip or a chip system in the terminal, the processing unit may be a processor, and the communication unit may be a communication interface. For example, the communication interface may be an input/output interface, a pin or a circuit, or the like. The processing unit executes the instructions stored in the storage unit, so that the terminal implements a method for instructing data transmission described in the first aspect or any possible implementation manner of the first aspect. The storage unit may be a storage unit in the chip (eg, a register, a cache, etc.), or a storage unit in the terminal (eg, a read-only memory, a random access memory, etc.) located outside the chip.

In a sixth aspect, an embodiment of the present application provides a communication device, which can implement the method in the second aspect or any possible implementation manner of the second aspect, and thus can also implement the second aspect or any possible implementation manner of the second aspect. Beneficial effects in implementation. The communication apparatus may be a network device, or may be a device that supports the network device to implement the method in the second aspect or any possible implementation manner of the second aspect, such as a chip applied to the network device. The communication device may implement the above method through software, hardware, or through hardware executing corresponding software.

An example, an embodiment of the present application provides a communication device, where the communication device is a terminal or a chip or a chip system applied in the terminal, the communication device includes: a communication unit and a processing unit, wherein the communication unit is used for for receiving or sending information/data. Processing unit for processing information/data. The communication unit is used for receiving the first packet data and the first message from the terminal. The first message is used to indicate that the terminal has data to be transmitted subsequently. The communication unit is further configured to send the first information and/or the second information to the terminal, wherein the first information is used to indicate the transmission mode of the data to be transmitted. The second information is used to indicate a transmission resource for transmitting data to be transmitted. The communication unit is further configured to receive the to-be-transmitted data transmitted by the terminal using the transmission mode and/or on the transmission resource.

In a possible implementation manner, the data to be transmitted is the second small packet data, and the first small packet data and the second small packet data are data divided by the first data.

In a possible implementation manner, the communication unit is further configured to send the first information and/or the second information to the terminal, including: the communication unit is further configured to send the first information and the second information to the terminal. The first information is used to indicate that the data to be transmitted is transmitted by the dynamic scheduling method, and the second information is used to indicate the transmission resources allocated for the dynamic scheduling method.

In a possible implementation manner, the communication unit is further configured to send the first information and/or the second information to the terminal, including: the communication unit is further configured to send first information to the terminal, where the first information is used to indicate The transmission mode of the data to be transmitted, and the first information is also used to indicate the transmission resource of the data to be transmitted. For example, the first information includes a first information element and a second information element, where the first information element is used to indicate a transmission mode of the data to be transmitted. The second information element is used to indicate the transmission resource of the data to be transmitted.

In a possible implementation manner, the first information is used to indicate a transmission mode of the data to be transmitted, and the first information is also used to indicate a transmission resource of the data to be transmitted, including: the first information is information in a first format, the first The format is used to indicate the transmission mode of the data to be transmitted; the information of the first format carries a first field, and the first field is used to indicate the transmission resource of the data to be transmitted.

In a possible implementation manner, the communication unit is further configured to send the first configuration information and/or the second configuration information to the terminal, where the first configuration information is used to configure the first preconfigured resource. The second configuration information is used to indicate the timing duration of the first timer.

In a possible implementation manner, the communication unit is further configured to send third configuration information to the terminal, where the third configuration information is used to indicate the timing for updating the first timer, and the third configuration information is carried in the RRC release of the radio resource control. in the message.

In a possible implementation manner, the communication unit is further configured to send the first information and/or the second information to the terminal, including: the communication unit is further configured to send the first information to the terminal. The first information is used to indicate that the data to be transmitted is transmitted by initiating a random access procedure. Alternatively, the first information is used to indicate transmission resources, and the transmission resources are not preconfigured resources of the terminal.

In a possible implementation manner, the communication unit is further configured to send the first information and/or the second information to the terminal, including: the communication unit is further configured to send the first information and the second information to the terminal. Alternatively, the communication unit is further configured to send the second information to the terminal. The first information is used to instruct the terminal to transmit the data to be transmitted by initiating a random access procedure, the second information is used to instruct the resources to send the random access preamble and the resources to send the data to be transmitted, or the second information is used to instruct the transmission to be transmitted A resource for transferring data.

In a possible implementation manner, the terminal has preconfigured resources capable of transmitting data to be transmitted, the transmission mode indicated by the first information is to transmit the data to be transmitted by means of preconfigured resources, and the second information is used by the terminal to determine a The target preconfigured resources in the set or sets of preconfigured resources are used as transmission resources, and the preconfigured resources are periodic resources.

In a possible implementation manner, the second information indicates information of target preconfigured resources; or, the second information includes at least one bit associated with each set of preconfigured resources in one or more sets of preconfigured resources of the terminal, any At least one bit associated with a set of preconfigured resources is used to indicate whether the preconfigured resources are available; or, the second information indicates information of unavailable preconfigured resources in one or more sets of preconfigured resources of the terminal.

Exemplarily, when the communication apparatus is a chip or a chip system in a network device, the processing unit may be a processor, and the communication unit may be a communication interface. For example, the communication interface may be an input/output interface, a pin or a circuit, or the like. The processing unit executes the instructions stored in the storage unit, so that the network device implements the method for instructing data transmission described in the second aspect or any possible implementation manner of the second aspect. The storage unit may be a storage unit (eg, a register, a cache, etc.) in the chip, or a storage unit (eg, a read-only memory, a random access memory, etc.) located outside the chip in the network device.

In a seventh aspect, an embodiment of the present application provides a communication device, which can implement the third aspect or the method in any possible implementation manner of the third aspect, and thus can also implement the third aspect or any possible implementation manner of the third aspect. Beneficial effects in implementation. The communication device may be a terminal, or may be a device that supports the terminal to implement the method in the third aspect or any possible implementation manner of the third aspect, for example, a chip applied to the terminal. The communication device may implement the above method through software, hardware, or through hardware executing corresponding software.

An example, an embodiment of the present application provides a communication device, where the communication device is a terminal or a chip or a chip system applied in the terminal, the communication device includes: a communication unit and a processing unit, wherein the communication unit is used for for receiving or sending information/data. Processing unit for processing information/data. When the terminal is in the radio resource control RRC-disconnected state, the communication unit is configured to send the first small packet of data to the network device. Wherein, the terminal subsequently has data to be transmitted. The processing unit is configured to determine the target preconfigured resource from one or more sets of preconfigured resources of the terminal according to the resource corresponding to the first packet data. The communication unit is configured to send the data to be transmitted to the network device on the target preconfigured resource.

In a possible implementation manner, the data to be transmitted is the second small packet data, and the first small packet data and the second small packet data are data divided from the first data. Alternatively, the data to be transmitted is the second data, and the second data and the first packet data are data divided from the first data. Alternatively, the first small packet of data and the to-be-transmitted data come from different data packets.

In a possible implementation manner, the resource corresponding to the first small packet of data is the random access preamble or the resource for sending the random access preamble, and the random access preamble is the random access preamble used in the random access process of sending the first small packet of data Enter the leading. a processing unit, configured to determine an association relationship, and the association relationship includes at least: the association relationship between the random access preamble and the first preconfigured resource in one or more sets of preconfigured resources, or, the resource for sending the random access preamble and the first preconfigured resource. An association relationship between preconfigured resources. The processing unit is configured to determine the first preconfigured resource as the target preconfigured resource according to the random access preamble or the resource for sending the random access preamble and the association relationship.

In a possible implementation manner, the processing unit, for determining the association relationship, includes: the terminal pre-stores the association relationship. Or, the terminal receives the first message from the network device, where the first message includes the association relationship.

In a possible implementation manner, the association relationship is determined by the index of the random access preamble and the number of one or more sets of preconfigured resources. In other words, the processing unit is configured to determine the association relationship according to the index of the random access preamble and the quantity of one or more sets of preconfigured resources.

In a possible implementation manner, the resource corresponding to the first small packet of data is the time-frequency resource used for sending the message of the first small packet of data in the random access process, and the processing unit is configured to convert one or more sets of preconfigured resources The pre-configured resource that has the same time-frequency position as the time-frequency resource is determined as the target pre-configured resource; or, the processing unit is configured to determine the pre-configured resource that has the same index as the time-frequency resource in one or more sets of pre-configured resources Provision resources for the target.

In a possible implementation manner, the resource corresponding to the first small packet data is a first preconfigured resource for transmitting the first small packet data, the first preconfigured resource is a periodic resource, and the processing unit is configured to automatically transmit the first small packet The first preconfigured resource starting from the first preconfigured resource of the data and after at least one period is determined as the target preconfigured resource, and the period is the period of the first preconfigured resource.

In a possible implementation manner, the resource corresponding to the first small packet of data is a first preconfigured resource for transmitting the first small packet of data, and the processing unit is configured to select the second preconfigured resource from one or more sets of preconfigured resources It is determined to be the target preconfigured resource, and the first preconfigured resource and the second preconfigured resource are different sets of preconfigured resources.

Exemplarily, when the communication device is a chip or a chip system in the terminal, the processing unit may be a processor, and the communication unit may be a communication interface. For example, the communication interface may be an input/output interface, a pin or a circuit, or the like. The processing unit executes the instructions stored in the storage unit, so that the terminal implements the data transmission method described in the third aspect or any possible implementation manner of the third aspect. The storage unit may be a storage unit in the chip (eg, a register, a cache, etc.), or a storage unit in the terminal (eg, a read-only memory, a random access memory, etc.) located outside the chip.

In an eighth aspect, an embodiment of the present application provides a communication device. The communication device can implement the method in any possible implementation manner of the fourth aspect or the second aspect, and therefore can also implement the fourth aspect or any possible implementation manner of the fourth aspect. Beneficial effects in implementation. The communication apparatus may be a network device, or may be a device that supports the network device to implement the method in the fourth aspect or any possible implementation manner of the fourth aspect, such as a chip applied to the network device. The communication device may implement the above method through software, hardware, or through hardware executing corresponding software.

An example, an embodiment of the present application provides a communication device, where the communication device is a network device or a chip or a chip system applied in the network device, the communication device includes: a communication unit and a processing unit, wherein the communication unit , for receiving or sending information/data. Processing unit for processing information/data. The processing unit is used to determine the association relationship. The communication unit is used for sending a broadcast message, and the broadcast message includes an association relationship. The association relationship includes at least the relationship between the random access preamble and the first preconfigured resource. Or, the association relationship includes at least the relationship between the resource for sending the random access preamble and the first preconfigured resource. The random access preamble is the random access preamble used by the terminal in the random access process of sending the first small packet of data.

Exemplarily, when the communication apparatus is a chip or a chip system in a network device, the processing unit may be a processor, and the communication unit may be a communication interface. For example, the communication interface may be an input/output interface, a pin or a circuit, or the like. The processing unit executes the instructions stored in the storage unit, so that the network device implements the data transmission method described in the fourth aspect or any possible implementation manner of the fourth aspect. The storage unit may be a storage unit (eg, a register, a cache, etc.) in the chip, or a storage unit (eg, a read-only memory, a random access memory, etc.) located outside the chip in the network device.

In a ninth aspect, an embodiment of the present application provides a computer-readable storage medium, where a computer program or instruction is stored in the computer-readable storage medium, and when the computer program or instruction is run on a computer, the computer executes the steps from the first aspect to the third aspect. A method for indicating data transmission described in any one of the possible implementations of an aspect. The computer can be a terminal.

In a tenth aspect, embodiments of the present application provide a computer-readable storage medium, in which a computer program or instruction is stored, and when the computer program or instruction is run on a computer, the computer is made to execute the steps from the second aspect to the first. A method for indicating data transmission described in any possible implementation manner of the second aspect. The computer can be a network device.

In an eleventh aspect, the embodiments of the present application provide a computer-readable storage medium, in which a computer program or instruction is stored, and when the computer program or instruction is run on a computer, the computer is made to execute the steps from the third aspect to the A data transmission method described in any possible implementation manner of the third aspect. The computer can be a terminal.

In a twelfth aspect, embodiments of the present application provide a computer-readable storage medium, where a computer program or instruction is stored in the computer-readable storage medium, and when the computer program or instruction is run on a computer, the computer executes the steps from the fourth aspect to the A data transmission method described in any possible implementation manner of the fourth aspect. The computer can be a network device.

In a thirteenth aspect, the embodiments of the present application provide a computer program product including instructions, when the instructions are run on a computer, the computer causes the computer to execute an instruction described in the first aspect or various possible implementations of the first aspect method of data transfer.

In a fourteenth aspect, the embodiments of the present application provide a computer program product including instructions, when the instructions are run on a computer, the computer causes the computer to execute an instruction described in the second aspect or various possible implementations of the second aspect method of data transfer.

In a fifteenth aspect, the embodiments of the present application provide a computer program product including instructions, which, when the instructions are run on a computer, cause the computer to execute the third aspect or a kind of data described in various possible implementations of the third aspect transfer method.

In a sixteenth aspect, an embodiment of the present application provides a computer program product including instructions, which, when the instructions are run on a computer, cause the computer to execute the data described in the fourth aspect or various possible implementations of the fourth aspect transfer method.

In a seventeenth aspect, an embodiment of the present application provides a communication device for implementing various methods in various possible designs of any one of the foregoing first aspect to the fourth aspect. The communication device may be the above-mentioned terminal, or a device including the above-mentioned terminal, or a component (eg, a chip) applied in the terminal. Alternatively, the communication apparatus may be the above-mentioned network equipment, or an apparatus including the above-mentioned network equipment, or the communication apparatus may be a component (eg, a chip) applied in the network equipment. The communication device includes corresponding modules and units for implementing the above method, and the modules and units may be implemented by hardware, software, or by executing corresponding software in hardware. The hardware or software includes one or more modules or units corresponding to the above functions. It should be understood that the communication device described in the seventeenth aspect above may further include: a bus and a memory, where the memory is used to store codes and data. Optionally, the at least one processor communication interface and the memory are coupled to each other.

In an eighteenth aspect, an embodiment of the present application provides a communication apparatus, where the communication apparatus includes: at least one processor. Wherein, at least one processor is coupled to a memory, and when the communication device is running, the processor executes computer-executed instructions or programs stored in the memory, so that the communication device executes the first aspect or any one of the first aspects. The method of any of various possible designs of the aspect. For example, the communication device may be a terminal, or a chip applied in the terminal.

In a nineteenth aspect, an embodiment of the present application provides a communication apparatus, where the communication apparatus includes: at least one processor. Wherein, at least one processor is coupled to a memory, and when the communication device is running, the processor executes computer-executable instructions or programs stored in the memory, so that the communication device executes the second aspect or any one of the second aspects. The method of any of various possible designs of the aspect. For example, the communication apparatus may be a network device, or a chip applied in the network device.

In a twentieth aspect, an embodiment of the present application provides a communication apparatus, where the communication apparatus includes: at least one processor. Wherein, at least one processor is coupled to a memory, and when the communication device is running, the processor executes computer-executable instructions or programs stored in the memory, so that the communication device executes the third aspect or any one of the third aspects. The method of any of various possible designs of the aspect. For example, the communication device may be a terminal, or a chip applied in the terminal.

In a twenty-first aspect, an embodiment of the present application provides a communication device, where the communication device includes: at least one processor. Wherein, at least one processor is coupled to a memory, and when the communication device is running, the processor executes the computer-executed instructions or programs stored in the memory, so that the communication device executes any of the fourth aspect or the fourth aspect above The method of any of various possible designs of the aspect. For example, the communication apparatus may be a network device, or a chip applied in the network device.

It should be understood that the memory described in any one of the eighteenth aspect to the twenty-first aspect may also be replaced by a storage medium, which is not limited in this embodiment of the present application.

In a possible implementation manner, the memory described in any one of the eighteenth aspect to the twenty-first aspect may be a memory inside the communication device, of course, the memory may also be located outside the communication device, but at least one processing The computer can still execute the computer-implemented instructions or programs stored in the memory.

In a twenty-second aspect, an embodiment of the present application provides a communication device, where the communication device includes one or more modules for implementing any one of the first, second, third, and fourth aspects above method, the one or more modules may correspond to each step in the method of any one of the first aspect, the second aspect, the third aspect, and the fourth aspect.

In a twenty-third aspect, an embodiment of the present application provides a chip system, where the chip system includes a processor, and the processor is configured to read and execute a computer program stored in a memory to execute the first aspect and any possible implementations thereof. Methods. Optionally, the chip system may be a single chip, or a chip module composed of multiple chips. Optionally, the chip system further includes a memory, and the memory and the processor are connected to the memory through a circuit or a wire. Further optionally, the chip system further includes a communication interface. The communication interface is used to communicate with other modules outside the chip.

In a twenty-fourth aspect, an embodiment of the present application provides a chip system, where the chip system includes a processor, and the processor is configured to read and execute a computer program stored in a memory to execute the second aspect and any possible implementations thereof. Methods. Optionally, the chip system may be a single chip, or a chip module composed of multiple chips. Optionally, the chip system further includes a memory, and the memory and the processor are connected to the memory through a circuit or a wire. Further optionally, the chip system further includes a communication interface. The communication interface is used to communicate with other modules outside the chip.

In a twenty-fifth aspect, an embodiment of the present application provides a chip system, where the chip system includes a processor, and the processor is configured to read and execute a computer program stored in a memory to execute the third aspect and any possible implementations thereof. Methods. Optionally, the chip system may be a single chip, or a chip module composed of multiple chips. Optionally, the chip system further includes a memory, and the memory and the processor are connected to the memory through a circuit or a wire. Further optionally, the chip system further includes a communication interface. The communication interface is used to communicate with other modules outside the chip.

In a twenty-sixth aspect, an embodiment of the present application provides a chip system, the chip system includes a processor, and the processor is configured to read and execute a computer program stored in a memory, so as to execute the fourth aspect and any possible implementations thereof. Methods. Optionally, the chip system may be a single chip, or a chip module composed of multiple chips. Optionally, the chip system further includes a memory, and the memory and the processor are connected to the memory through a circuit or a wire. Further optionally, the chip system further includes a communication interface. The communication interface is used to communicate with other modules outside the chip.

In a twenty-seventh aspect, an embodiment of the present application provides a communication system, where the communication system includes: a terminal and a network device. The terminal is used for executing the method in the first aspect and any possible implementation manner thereof, and the network device terminal is used for executing the method in the second aspect and any possible implementation manner thereof. Or the terminal is used to execute the method in the third aspect and any possible implementation manner thereof, and the network device terminal is used for executing the method in the fourth aspect and any possible implementation manner thereof.

Any device or computer storage medium or computer program product or chip or communication system provided above is used to execute the corresponding method provided above. Therefore, the beneficial effect that can be achieved can refer to the corresponding provided above. The beneficial effects of the corresponding solutions in the method will not be repeated here.

Description of drawings

FIG. 1 is a schematic diagram of a communication system provided by an embodiment of the present application;

2a is a schematic diagram of a user plane protocol stack of a terminal and a gNB provided by an embodiment of the present application;

2b is a schematic diagram of a control plane protocol stack of a terminal and a gNB according to an embodiment of the present application;

3 is a schematic diagram of an RRC state transition of a terminal according to an embodiment of the present application;

FIG. 4a is a schematic diagram of a four-step random access provided by an embodiment of the present application;

FIG. 4b is a schematic diagram of a two-step random access provided by an embodiment of the present application;

5a-5f are schematic diagrams of small packet data transmission according to an embodiment of the present application;

FIG. 6 is a schematic flowchart 1 of an instruction data transmission provided by an embodiment of the present application;

FIG. 7 is a schematic diagram of a preconfigured uplink resource provided by an embodiment of the present application;

FIG. 8 is a second schematic flowchart of an instruction data transmission provided by an embodiment of the present application;

FIG. 9 is a schematic diagram of the location of a dynamic scheduling resource and a preconfigured resource provided by an embodiment of the present application;

FIG. 10 is a schematic third flowchart of an instruction data transmission provided by an embodiment of the present application;

FIG. 11 is a schematic diagram of another preconfigured uplink resource provided by an embodiment of the present application;

12 is a schematic structural diagram of a MAC CE carrying first information and/or second information provided by an embodiment of the present application;

FIG. 13 is a fourth schematic flowchart of an instruction data transmission provided by an embodiment of the present application;

FIG. 14 is a fifth schematic flowchart of a data transmission provided by an embodiment of the present application;

FIG. 15a is a schematic diagram of an association relationship between a resource and a preconfigured resource provided by an embodiment of the present application;

FIG. 15b is a schematic diagram of an association relationship between another resource and a preconfigured resource provided by an embodiment of the present application;

16a is a schematic diagram of an association relationship between another resource and a preconfigured resource provided by an embodiment of the present application;

FIG. 16b is a schematic diagram of an association relationship between still another resource and a preconfigured resource provided by an embodiment of the present application;

FIG. 17 is a schematic structural diagram of a communication device according to an embodiment of the present application;

FIG. 18 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

FIG. 19 is a schematic structural diagram of a chip provided by an embodiment of the present application.

detailed description

In order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as "first" and "second" are used to distinguish the same or similar items with basically the same function and effect. For example, the first message and the second message are only for distinguishing different messages, and the sequence of the first message is not limited. Those skilled in the art can understand that the words "first", "second" and the like do not limit the quantity and execution order, and the words "first", "second" and the like are not necessarily different.

It should be noted that, in this application, words such as "exemplary" or "for example" are used to represent examples, illustrations or illustrations. Any embodiment or design described in this application as "exemplary" or "such as" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present the related concepts in a specific manner.

The technical solutions of the present application can be applied to various communication systems, such as: long-term evolution (long time evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD) system ) system, universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, public land mobile network (PLMN) system, device-to-device (device to device, D2D) network system or machine to machine (machine to machine, M2M) network system and the future fifth generation mobile communication technology (the 5th-generation, 5G) communication system and so on.

The network architecture and service scenarios described in the embodiments of the present application are for the purpose of illustrating the technical solutions of the embodiments of the present application more clearly, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. The evolution of the architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems. In the embodiments of the present application, the provided method is applied to a New Radio (New Radio, NR) system or a 5G network as an example for description.

In this application, "at least one" means one or more, and "plurality" means two or more. "And/or", which describes the association relationship of the associated objects, indicates that there can be three kinds of relationships, for example, A and/or B, which can indicate: the existence of A alone, the existence of A and B at the same time, and the existence of B alone, where A, B can be singular or plural. The character "/" generally indicates that the associated objects are an "or" relationship. "At least one item(s) below" or similar expressions thereof refer to any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one item (a) of a, b, or c may represent: a, b, c, ab, ac, bc, or abc, where a, b, and c may be single or multiple .

As shown in FIG. 1 , an embodiment of the present application provides a communication system, where the communication system includes: a network device 100 and one or more terminals 200 that communicate with the network device 100 . It should be understood that a terminal and a network device are taken as an example in FIG. 1 . In the actual process, there may be more network devices and terminals.

The terminal 200 can be connected to the network device 100 in a wireless manner, and can access the core network through the network device 100 . The terminal 200 may be fixed or movable. FIG. 1 is only a schematic diagram, and the communication system may also include other network devices, such as core network devices and relay devices, which are not shown in FIG. 1 . The embodiments of the present application do not limit the number of terminals 200 and network devices 100 included in the communication system.

The terminal 200 can establish a connection with the network device 100 through a random access procedure (random access procedure) and obtain uplink synchronization, and then can send uplink data to the accessed network device 100.

As shown in Figures 2a and 2b, taking the network device 100 as a gNB as an example, Figure 2a shows the user plane protocol stack of the communication between the terminal 200 and the gNB, and the user plane protocol stack of the terminal 200 and the gNB is from top to bottom Including: Service Data Adaptation Protocol (SDAP), Packet Data Convergence Protocol (PDCP), Radio Link Control (Radio Link Control, RLC), Media Access Control (Medium access control) , MAC) layer and physical (Physical, PHY) layer. As shown in FIG. 2b, the control plane protocol stack of the communication between the terminal 200 and the gNB is shown. The control plane protocol stack of the terminal 200 sequentially includes from top to bottom: a non-access (Non Access Stratum, NAS) layer, a wireless Resource Control (Radio Resource Control, RRC) layer, PDCP layer, RLC layer, MAC layer, PHY layer. The control plane protocol stack of the AMF network element includes the NAS layer. FIG. 2a and FIG. 2b take the protocol stacks of each device shown as an NR protocol stack as an example.

It can be seen from Figure 2a and Figure 2b that the user plane (UP) protocol stack and the control plane (CP) protocol stack of the terminal 200 or gNB have in common that they both include the RLC layer and the MAC layer. and PHY layer.

For the RRC layer, in a long term evolution (LTE) system, the terminal has two radio resource control states, namely the RRC-connected (RRC_CONNECTED) state and the RRC-idle (RRC_IDLE) state. After the terminal is powered on, the terminal is first in the RRC_IDLE state. If the terminal initiates a request to establish an RRC connection and successfully establishes an RRC connection with the base station, the terminal enters the RRC_CONNECTED state, and then can communicate with the core network equipment. If the establishment of the RRC connection request initiated by the terminal fails, or the terminal releases the RRC connection, the terminal enters the RRC_IDLE state. When the terminal is in the RRC_IDLE state, if the core network device has data to send to the terminal, it needs to send a paging message to the terminal. In this way, after the terminal receives the paging message for paging the terminal, the terminal initiates During the RRC connection establishment process, the terminal receives the data after entering the RRC_CONNECTED state.

In order to reduce the signaling overhead and the power consumption of the terminal, in the 5G communication system, in addition to the above-mentioned RRC-connected state and RRC-idle state, the terminal also has a third state, namely the radio resource control-inactive (RRC_INACTIVE) state . In the RRC_INACTIVE state, the terminal is in a power-saving sleep state, but the terminal still retains part of the radio access network (RAN) context (for example, security context, terminal capability information, etc.), and always maintains the 5G core network and RAN. Connection. That is, the terminal in the RRC_INACTIVE state always maintains the connection between the 5G core network and the base station. Therefore, when it is necessary to communicate with the terminal, it can quickly change from the RRC_INACTIVE state to the RRC_CONNECTED state. In other words, "terminals with infrequent data transmissions are generally kept in the RRC_INACTIVE state by the network".

The same point between the RRC_IDLE state and the RRC_INACTIVE state is that the terminal cannot transmit data in both the RRC_IDLE state and the RRC_INACTIVE state. If the terminal wants to transmit data, the terminal needs to switch from the RRC_IDLE state or the RRC_INACTIVE state to RRC_CONNECTED. The difference between the RRC_IDLE state and the RRC_INACTIVE state is that the terminal switching from the RRC_INACTIVE state to the RRC_CONNECTED state is different from the terminal switching from the RRC_IDLE state to the RRC_CONNETED state, because when the terminal switches from the RRC_CONNECTED state to the RRC_IDLE state, the context of the core network is released, that is, the release of the core network context. The context applied when the RRC_IDLE state switches to the RRC_CONNECTED state. When the terminal switches from the RRC_INACTIVE state to the RRC_CONNECTED state, since the terminal does not release the context, the signaling overhead between the network device and the terminal is reduced. The reduction in the reception of signaling messages reduces the power consumption caused by the terminal de-blind detection and the transmission time caused by air interface transmission. Therefore, the time it takes for the terminal to enter the RRC_CONNECTED state from the RRC_INACTIVE state is shorter than the time it takes for the terminal to enter the RRC_CONNECTED state from the RRC_IDLE state, and the interaction of signaling is less, so that the terminal can quickly enter the RRC_CONNECTED state from the RRC_INACTIVE state, which also reduces signaling overhead.

When the terminal is in different RRC states, different operations are performed. As shown in Figure 3, Figure 3 shows the transition flow between the above three RRC states:

The terminal starts to be in the RRC_IDLE state. When the terminal needs to perform data transmission, the terminal will perform a random access procedure to establish an RRC connection with the base station, and start data transmission after entering the RRC_CONNECTED state. The terminal sends an RRC connection establishment request message (eg, RRCSetupRequest) to the base station in the process of initiating random access. The terminal receives a connection establishment message (eg, RRCSetup) sent by the base station to set up an RRC connection.

When the terminal does not need to perform data transmission subsequently, the base station may release the terminal to make the terminal enter the RRC_IDLE state or the RRC_INACTIVE state.

For example, the base station sends a release message with a suspend indication (eg, RRCRelease with suspend indication), so that the terminal enters the RRC_INACTIVE state.

For another example, the base station sends a release message (eg, RRCRelease) to the terminal, so that the terminal enters the RRC_IDLE state.

In addition, the terminal in the RRC_INACTIVE state can also return to the RRC_CONNECTED state through a resume message. For example, the terminal sends an RRC connection recovery request message (eg, RRCResumeRequest) and receives a connection recovery message (eg, RRCResume) sent by the base station. Likewise, the base station can also release the terminal to make the terminal enter the RRC_IDLE state.

Specifically, the characteristics of each RRC state of the above-mentioned terminal are as follows:

RRC_IDLE state: PLMN selection, system information broadcast, cell reselection, called paging initiated by 5G core network (5G core, 5GC), configured by non-access stratum (Non-Access Stratum, NAS) for core network paging Call DRX.

RRC_INACTIVE state: Public Land Mobile Network (PLMN) selection, system information broadcast, cell reselection, called search initiated by next generation (NG)-radio access network (RAN) paging, RAN-based Notification Area (RNA) managed by NG-RAN, Discontinuous Reception (DRX) configured by NG-RAN for RAN paging, establishment of 5GC and NG-RAN The connection between the user plane and the control plane, the NG-RAN and the terminal all save the access stratum (Access Stratum, AS) context of the terminal. NG-RAN knows the RNA where the terminal is located.

RRC_CONNECTED state: Establish the connection between the user plane and the control plane between the 5G core network (5G core, 5GC) and the NG-RAN, both the NG-RAN and the terminal save the AS layer context of the terminal, the NG-RAN knows the cell to which the terminal belongs, The terminal can send or receive unicast data, and the network controls the mobility of the terminal, including measurements.

The terminal 200 is a device with a wireless communication function, which can be deployed on land, including indoor or outdoor, hand-held or vehicle-mounted, and can also be a sensor-type device. It can also be deployed on water (such as ships, etc.). It can also be deployed in the air (eg on airplanes, balloons, satellites, etc.). A terminal may also be referred to as user equipment (UE), access terminal (access terminal), user unit (user unit), user station (user station), mobile station (mobile station), mobile station (mobile), remote remote station, remote terminal, mobile equipment, user terminal, wireless telecom equipment, user agent, user equipment or user device. The terminal 200 may be a station (station, STA) in a wireless local area network (wireless local area networks, WLAN), may be a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop) loop, WLL) stations, personal digital assistant (PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, and next-generation communication systems ( For example, a terminal in a fifth-generation (fifth-generation, 5G) communication network) or a terminal in a future evolved public land mobile network (public land mobile network, PLMN) network, and the like. Among them, 5G can also be called new radio (NR).

In addition, the terminal 200 may also be a wearable device, that is, the wearable device is directly worn on the body, or a portable device integrated into the user's clothes or accessories. Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones. Use, such as all kinds of smart bracelets, smart jewelry, etc. for physical sign monitoring. Such as smart watches, smart bracelets, pedometers, etc. In-vehicle equipment (for example, cars, bicycles, electric vehicles, airplanes, ships, trains, high-speed rails, etc.), virtual reality (VR) equipment, augmented reality (AR) equipment, industrial control (industrial control) Wireless terminals, smart home equipment (for example, refrigerators, TVs, air conditioners, electricity meters, etc.), intelligent robots, workshop equipment, wireless terminals in self-driving, wireless terminals in remote medical surgery, smart Wireless terminals in the power grid (smart grid), wireless terminals in transportation safety, wireless terminals in smart cities, or wireless terminals in smart homes, flying equipment (for example, smart Robots, hot air balloons, drones, airplanes), etc. In this application, for ease of description, a chip deployed in the above-mentioned device, such as a System-On-a-Chip (SOC), a baseband chip, etc., or other chips with communication functions, may also be referred to as a terminal.

The network device in this embodiment of the present application may be a device for communicating with a terminal, and the network device may be a global system for mobile communications (GSM) system or a code division multiple access (code division multiple access, CDMA) system. It can also be a base station (NodeB, NB) in a wideband code division multiple access (WCDMA) system, or an evolved base station (evoledNodeB) in an LTE system. eNB or eNodeB), it can also be a wireless controller in a cloud radio access network (CRAN) scenario, or the network device can be a relay station, an access point, an in-vehicle device, a wearable device, and a future 5G network The network equipment in the PLMN network or the network equipment in the future evolved PLMN network, etc., are not limited in the embodiments of the present application.

Currently, a terminal in the RRC_INACTIVE state or the RRC_IDLE state does not support data transmission, that is, the terminal in the RRC_INACTIVE state or the RRC_IDLE state needs to restore the RRC connection through the random access procedure and enter the RRC_CONNECTED state before data transmission can be performed.

In this embodiment of the present application, the network device can support multiple random access modes. The following briefly introduces the four-step random access mode (4-step RA) and the two-step random access mode (2) currently supported by both the terminal and the network device. -step RA), with the development of communication technology, more other random access methods will appear in the future, and the various random access methods described here can be included.

As an example, when the terminal is not configured with non-contention random access (Contention Free Random Access, CFRA) resources, the terminal will be based on the current reference signal received power (Reference Signal Receiving Power, RSRP) measurement value and specified in the protocol The size of the threshold is related to the independent selection of contention-based random access (CBRA), such as 4-step RA or 2-step RA.

Figure 4a shows a schematic diagram of a four-step random access process, which includes:

The terminal in the RRC_IDLE state sends a random access preamble (Random Access Preamble), also called message 1 (message1, Msg1), to the base station (for example, the terminal may send a Preamble to the base station on a random access channel). After detecting the random access preamble, the base station sends a random access response message (Random Access Response, RAR) to the terminal, also called message two (Msg2). The terminal sends an uplink message, also called message three (Msg3), through a data channel (for example, a physical uplink shared channel (PUSCH)) on the allocated uplink resource according to the instruction of Msg2. In order to resolve the conflict, after successfully receiving a Msg3, the base station returns a conflict resolution message (also called Msg4) to the terminal that has successfully accessed. The Msg4 carries the unique identifier in Msg3 to designate the terminal that has successfully accessed. For CBRA, before the terminal accesses randomly, the base station broadcasts the preamble set available to the network device and the time-frequency resource for sending message 1 to the terminal through a broadcast message. When the terminal performs random access, it includes the following steps:

Step 401a: The terminal sends Msg1, which may also be referred to as message 1, to the base station on time-frequency resource 1.

The message 1 includes a random access preamble (Random Access Preamble). For example, the terminal may send a random access preamble to the base station on a random access channel (Random access channel).

The terminal can notify the base station of its random access request through the random access preamble. The random access preamble includes any preamble selected by the terminal from the preamble set configured by the network device.

Step 402a: The base station sends Msg2 to the terminal, which may also be referred to as message 2. Wherein, the message 2 includes a random access response (random access response, RAR).

It can be understood that the terminal will monitor the PDCCH within the RAR time window to receive the RAR sent by the base station. If the terminal does not receive the RAR replied by the base station within the RAR time window, the terminal considers that the random access process has failed. The RAR includes the random access preamble, the time-frequency position for sending message 3, the temporary cell radio network temporary identifier (TC-RNTI), and the like. The base station demodulates the preamble sent by the terminal. The base station calculates the scrambling code of message 2 according to the identifier of the demodulated preamble and the time-frequency resource of receiving message 1. The scrambling code may be a random access radio network temporary identifier (RA-RNTI). The base station determines the time-frequency resource for the terminal to send message 3 . The base station carries the identifier of the preamble and the time-frequency resource for sending the message 3 in the message 2 . The base station uses the calculated scrambling code to scramble message 2 and sends it to the terminal.

Step 403a: If the terminal receives the RAR, the terminal will pass the data channel (for example, the physical uplink shared channel) on the allocated time-frequency resources according to the instructions of Msg2 based on its current different RRC status and different scenarios. , PUSCH)) to send an uplink message Msg3, also called message 3.

Wherein, message 3 carries the identifier of the terminal and different RRC messages. For example, when the terminal is in the RRC_INACTIVE state, the RRCResumerequest can be sent to restore the RRC connection.

Since multiple terminals send message 3 on the same time-frequency resource, interference will occur. In order to resolve the conflict, after the base station successfully receives a Msg3, as shown in step 4, the base station returns a conflict resolution message to the terminal that has successfully accessed (or Called Msg4), Msg4 is used to notify the terminal that its random access is successful.

Figure 4b shows a schematic diagram of a two-step random access process, which includes:

Step 401b, the terminal sends a message A (MsgA). The MsgA includes the random access preamble and the RRC message carried in Msg3 of the above-mentioned 4-step RA.

Step 402b, the base station sends a message B (MsgB) to the terminal. The MsgB includes the RAR, which is used to notify the terminal whether the contention is successfully resolved.

In NR, for a terminal in a connected state, the base station can allocate a preconfigured Grant (CG) resource to the terminal, where the CG resource is an uplink resource, which is mainly used by the terminal to transmit to the base station through the CG resource when there is a data transmission requirement. Send upstream data. For example, the base station configures CG resource type 1 (CG type 1) for the terminal. The base station can directly configure the specific uplink CG resource configuration for the terminal through the RRC message. The configuration includes the time-frequency location of the CG resource and the period of the CG resource. Therefore, unlike dynamic scheduling resources, CG resources can reduce signaling overhead and data delay. Dynamic scheduling resources are resources dynamically allocated by the base station for the terminal. For example, the base station may dynamically schedule resources to allocate resources to the terminal through downlink control information (Downlink Control Information, DCI).

In addition, a pre-configured resource timer (configuredGrantTimer) is included in the CG configuration, and the timer can control the terminal's use of the CG resources. When the terminal receives the dynamic scheduling instruction, the terminal starts the configuredGrantTimer. During the running process of configuredGrantTimer, the terminal will not use CG resources to send uplink data.

However, in some scenarios, the size of the data packet that the terminal in the RRC_INACTIVE state needs to transmit is smaller than the preset threshold (this application may be referred to as: small packet data, small data), and the terminal needs to enter the RRC_CONNECTED state from the RRC_INACTIVE state. Make it even larger than small data, resulting in unnecessary power consumption and signaling overhead. Specific scenarios can cover smartphone-related services, such as instant messages of WeChat and QQ, heartbeat packets or push messages of application software; and non-smartphone-related services, such as periodic data of wearable devices such as heartbeat packets, industrial wireless sensors Periodic readings sent by the network, smart meters, etc.

Currently, data transmission when the terminal is in the RRC-disconnected state can be implemented through the following solutions. The RRC-disconnected state involved in the embodiments of the present application may refer to that the terminal is in the RRC-IDLE state, or the terminal is in the RRC-INACTIVE state.

Scheme 1. Currently, small packet data transmission can be performed through 4-step RA. In the LTE system, a method for supporting data transmission by terminals in the RRC_IDLE state has been standardized, which is referred to as Early Data Transmission (EDT), Including terminal initiated (mobile originated EDT, MO-EDT), namely uplink EDT, and terminal terminated (mobile terminated EDT, MT-EDT), namely downlink EDT. The main idea is that the terminal can perform uplink (uplink, UL) data (data) transmission in the RRC_IDLE state. The main methods are:

For MO-EDT, the terminal is allowed to transmit uplink data (UL data) once during the random access process. Specifically, the terminal in the RRC_IDLE state has uplink data to transmit, both the network and the terminal support MO-EDT, and the size of the data to be transmitted is less than or equal to the transmission block (TB) indicated in the system information from the terminal. hour, then the terminal initiates MO-EDT, and sends uplink data through the message of Msg3 (Message 3 in the random access process of LTE for establishing and restoring RRC connection in the random access process. As shown in Figure 5a, for the user plane EDT scheme, can also include in message 3: RRC connection recovery request (RRCConnectionResumeRequest)+UL data, namely terminal sends RRCConnectionResumeRequest and UL data simultaneously.Or as shown in Figure 5b, for control plane EDT scheme, can also include in message 3: RRC early transmission data request (RRCEarlyDataRequest) and UL data, that is, the terminal sends RRCEarlyDataRequest carrying UL data. If the core network also has downlink data arriving at this time, as shown in Figure 5a, the base station can send RRCConnectionRelease (RRCConnectionRelease) to the terminal through message 4 Release) + downlink data (downlink data, DL data), that is, the base station sends RRCConnectionRelease and UL data at the same time. Or as shown in Figure 5b, the RRC early data completion (RRCEarlyDataComplete) message and DL data can be sent to the terminal through message 4, that is The base station sends the RRCEarlyDataComplete message that carries the UL data. That is, data transmission is carried out between the terminal and the base station in the random access process, and it is not necessary to wait until the random access process is completed, and the terminal enters the RRC_CONNECTED state and then sends the uplink data. The difference between the schemes shown in Figure 5a and Figure 5b is that in Figure 5a, uplink data is multiplexed at the MAC layer together with the RRC message. In the scheme shown in Figure 5b, the uplink data is put into the RRC message and carried to the base station.

For MT-EDT, the terminal is allowed to transmit downlink data once during the random access process. Specifically, when the core network has downlink data to transmit and both the network and the terminal support MT-EDT, the core network will trigger MT-EDT. Mainly, the core network sends a paging message carrying the downlink data size to the base station. Then, the base station sends a paging message carrying the MT-EDT indication to the terminal. After the terminal receives the paging message, the terminal will trigger MO-EDT for MT-EDT. The difference in this process is that the terminal does not send data while sending RRCConnectionResumeRequest or RRCEarlydataRequest. Specifically, the standardized user plane and control plane MT-EDT solutions are shown in Figure 5c.

Scheme 2: Small packet data transmission through 2-step RA.

In NR, 2-step RA is currently mainly used as a way for terminals to perform random access, rather than data transmission, but this scheme can still be used as a method for the NR small data scheme. Its characteristic is that the terminal directly sends a random access preamble and a PUSCH load at MsgA. The PUSCH carries different RRC messages sent by the terminal based on its current different RRC states and different scenarios. Therefore, when small data is transmitted through 2-step RA, small data can be transmitted in the PUSCH load of MsgA.

Scheme 3: In LTE, small packet data transmission is performed through preconfigured uplink resources (PUR).

Currently, in LTE, a method for data transmission by a terminal in the RRC_IDLE state is also supported, which is referred to as PUR for short. When both the base station and the terminal support PUR, the terminal transmits data through pre-configured uplink resources and the terminal does not need to perform random access. into the process. Wherein, as shown in FIG. 5d, the terminal may send PUR request configuration information (PURConfigurationRequest) to the base station when it is in RRC_CONNECTED. When the terminal enters the RRC_IDLE state from RRC_CONNECTED, the RRC connection release (ConnectionRelease) message may carry PUR configuration information or PUR release indication information and the like.

Based on the configuration of the above PUR, the terminal can use the PUR for transmission when data arrives or the upper layer of the terminal requests to establish or restore an RRC connection, and has a valid timing advance (TA) specified in TS 36.331. Among them, TA is used for the synchronization between the terminal and the network device. The transmitted content is similar to the message in the above EDT, namely UP:RRCConnectionResumeRequest+UL data/CP:RRCEarlyDataRequest with UL data. Specifically, the standardized user plane is shown in Figure 5e, and the control plane PUR scheme is shown in Figure 5f:

It should be noted that the PUR is a data transmission scheme of RRC_IDLE that has been standardized in the LTE system, wherein the resources of the PUR are uplink resources preconfigured by the base station for the terminal. Correspondingly, CG is the pre-configured uplink resource configured by the base station for the terminal in the NR system, but the CG in the currently standardized technology is used for data transmission by the terminal in the RRC_CONNECTED state. Therefore, in order to consider how to use preconfigured uplink resources for data transmission in the RRC_INACTIVE state in the NR system, the PUR technology in LTE can be used as a reference.

Based on the above ideas, in 5G NR, in order to help the terminal save power consumption and signaling overhead, the terminal in the RRC_INACTIVE state can be supported to transmit small data, that is, the terminal does not need to enter the RRC_CONNECTED state from the RRC-disconnected state in order to transmit small data. When the terminal is in the RRC_INACTIVE state, the terminal can send small data in Msg3 in 4-step RA, or the terminal can send small data in MsgA in 2-step RA, or the terminal can use CG resources to send small data. This solution It can be called a small packet data transmission scheme.

The large packet data in this embodiment of the present application may refer to data that is greater than or equal to the preset transmission block size. Small-packet data may refer to data smaller than or equal to the preset transmission block size, but for descriptions involving large-packet data and small-packet data, reference may be made to the description here. The preset transport block size may be broadcast by a network device, or the transport block size may be predefined by a protocol, which is not limited in this embodiment of the present application.

Based on the above process, the terminal can perform small data transmission through the Msg3/MsgA/CG resources in the above solution, and the base station can use an RRC message, such as RRCRelease to indicate that the terminal small data transmission has been completed after the small data transmission, and the terminal can return to the original the RRC status.

However, in some scenarios, after the terminal transmits a small packet of data (smalldata1), there may be subsequent small data transmission requirements. Therefore, the terminal can use Msg3/MsgA/CG resources to send smalldata1 and carry auxiliary information at the same time. The auxiliary information may "indicate the subsequent data transmission situation of the terminal and assist the base station to indicate the RRC state of the terminal after completing the smalldata1 transmission". For example, the terminal sends auxiliary information to the base station to avoid the following situations: for example, the terminal still has the transmission requirement of smalldata2 or has normal transmission data, then the base station makes the terminal enter a suitable RRC state, so as to avoid affecting the subsequent data transmission of the terminal or Affects the power usage of the terminal. Specifically, when the terminal has no subsequent data transmission requirements or the data to be transmitted by the terminal is still small data, the base station can keep the terminal in the RRC_INACTIVE state, or when the terminal has a subsequent large data demand, that is, data that is normally transmitted, the base station can indicate The terminal enters the RRC_CONNECTED state. The terminal can send auxiliary information to the base station, so that the base station can learn the subsequent transmission requirements of the terminal. Specific subsequent data transmission situations may include:

Scenario 1. The terminal needs to transmit small data in the RRC_INACTIVE state, but the small data is larger than the data packet size that the terminal can upload at one time. The terminal can divide the small data to be transmitted into smalldata1 and smalldata2 based on the data packet requirements broadcast by the base station. When the terminal transmits smalldata1, it can report auxiliary information related to smalldata2 at the same time. After the terminal completes the transmission of smalldata1, the terminal continues to transmit smalldata2 in the RRC_INACTIVE state.

Scenario 2: The terminal needs to transmit small data in the RRC_INACTIVE state, but the small data is larger than the size of the data packet that the current terminal can upload at one time. The terminal can divide the small data to be transmitted into smalldata1 and data2 based on the data packet requirements broadcast by the base station. When the terminal transmits smalldata1, it can report auxiliary information related to data2 at the same time. After the terminal completes the transmission of smalldata1, the terminal continues to transmit data2 in the RRC_INACTIVE state. The difference between the scenario 2 and the scenario 1 is that in the scenario 1, smalldata2 is small packet data, while data2 is non-small packet data. The so-called non-small packet data refers to data larger than the preset data block size.

Scenario 3: The terminal has a transmission requirement of smalldata1 in the RRC_INACTIVE state, and the smalldata1 meets the size of the data packet that the current terminal can upload at one time. When the terminal transmits the smalldata1, a new data packet, such as data2, arrives. The terminal may indicate the auxiliary information related to the new data packet to the base station while transmitting smalldata1. After the terminal transmits the smalldata1, the terminal continues to transmit data2 in the RRC_INACTIVE state. Wherein, data2 may be small packet data or non-small packet data.

Of course, the data sent in scenario 1 may also be non-small packet data, which is not limited in this embodiment of the present invention.

Therefore, after the terminal sends smalldata1 through Msg3/MsgA/CG resources, for subsequent data transmission, it is assumed that the terminal has obtained the CG resource configuration and the priority of transmission using CG resources is higher than that of transmitting subsequent data using Msg3/MsgA. However, the CG resources of the terminal are shared by multiple terminals. If the CG resource is already occupied by another terminal, but the terminal does not know that the CG resource configured by the base station is occupied, and the terminal continues to send the data to be transmitted on the occupied CG resource, the data transmission will fail and the data transmission quality of the terminal will be affected. .

The embodiment of the present application provides a method for indicating data transmission. In the method, when the terminal sends the first small packet of data to the network device, the network device determines according to the first message that the terminal has data to be transmitted subsequently, and the network device sends the data to the network device. The terminal sends the first information and/or the second information, so that the terminal can determine the transmission mode and/or the transmission resource of the data to be transmitted subsequently sent to the network device. On the one hand, it can avoid data transmission failure caused by the terminal using preconfigured resources to transmit data to be transmitted when the preconfigured resources of the terminal are unavailable, thereby ensuring the reliability of subsequent data transmission and improving the data transmission quality of the terminal . On the other hand, the terminal transmits the data to be transmitted to the network device through the transmission mode and/or transmission resource indicated by the network device, so that the network device can determine the location where the data to be transmitted is received.

A method for indicating data transmission provided by an embodiment of the present application will be described in detail below with reference to FIG. 6 to FIG. 13 .

It should be noted that the names of messages between network elements or the names of parameters in the messages in the following embodiments of the present application are just an example, and other names may also be used in specific implementations, which are not specified in the embodiments of the present application. limited.

It should be pointed out that the embodiments of the present application can learn from each other or refer to each other, for example, the same or similar steps, method embodiments, communication system embodiments and device embodiments can all refer to each other without limitation.

In the embodiment of the present application, the specific structure of the execution body of a method for indicating data transmission is not particularly limited in the embodiment of the present application, as long as the code of the method for indicating data transmission according to the embodiment of the present application can be recorded by running The program can be communicated by the method for instructing data transmission according to the embodiment of the present application. For example, the execution body of the method for instructing data transmission provided by the embodiments of the present application may be a functional module in a terminal capable of calling a program and executing the program, or a communication device applied in the terminal, such as a chip, a chip system, an integrated circuit, etc. Wait. These chips, chip systems, and integrated circuits may be disposed inside the terminal, or may be independent of the terminal, which is not limited in this embodiment of the present application. The execution body of the method for indicating data transmission provided by the embodiments of the present application may be a functional module in a network device that can call a program and execute the program, or a communication device applied in the network device, for example, a chip, a chip system, an integrated circuit, etc. etc., these chips, chip systems, and integrated circuits may be disposed inside the network device, or may be independent from the network device, which is not limited in this embodiment of the present application. The following embodiments are described by taking as an example that the executing subject of a method for instructing data transmission is a terminal, and the executing subject of a method of instructing data transmission is a network device. In the case of no conflict, the solutions of the following embodiments can be used in combination.

As shown in FIG. 6, FIG. 6 shows a method for indicating data transmission provided by an embodiment of the present application, and the method includes:

Step 601: The terminal sends the first small packet of data and the first message to the network device. Correspondingly, the network device receives the first packet data and the first message from the terminal. The first message is used to indicate that the terminal has subsequent data to be transmitted.

In a possible implementation manner, step 601 in this embodiment of the present application may be implemented in the following manner: the terminal sends the first small packet of data and the first small packet of data to the network device during the random access process or on the preconfigured resources of the terminal information. Correspondingly, the network device may receive the first packet data and the first message from the terminal in the random access process or the preconfigured resource of the terminal. For example, sending the first packet of data and the first message to the network device by the terminal during the random access process may be implemented in the following manner: the terminal may send the first packet of data and the first message to the network device in Msg3 or MsgA during the random access process. First news. The first small packet of data and the first message may be carried in the same message and sent, or may be sent through different messages, which are not limited in this embodiment of the present application.

In another possible implementation, in step 601, the terminal sending the first small packet of data and the first message to the network device may be replaced by the terminal sending third data and the first message to the network device, where the third data may be small packet data , or it may not be small packet data, which is not limited in this embodiment of the present application.

The preconfigured resource in the embodiment of the present application may refer to: PUR in the LTE system, or may also refer to the above-mentioned CG resource. It may also be other preconfigured resources, which are not limited in this embodiment of the present application.

In a possible implementation manner, the terminal has one or more sets of preconfigured resources. Wherein, a set of preconfigured resources includes preconfigured resources that appear in different time domain locations. For example, a plurality of preconfigured resources included in a set of preconfigured resources are periodic resources, that is, the preconfigured resources may be periodic preconfigured resources. The periods of different sets of preconfigured resources may be the same or different, which is not limited in this embodiment of the present application.

For example, as shown in FIG. 7 , a set of preconfigured resources includes preconfigured resource 1 that appears for the first time, preconfigured resource 1 that appears for the second time after period 1, and so on until the preconfigured resource 1 becomes invalid.

The above-mentioned periodic pre-configured resource may be configured for the terminal by the network device, or the periodic pre-configured resource may be configured for the terminal by a protocol. For example, the network device configures preconfigured resources for the terminal when the terminal is in the RRC_CONNECTED state, or when the RRC_CONNECTED state of the terminal is about to be released by the network device, which is not limited in this embodiment of the present application. The preconfigured resource is used solely by the terminal, which is a non-shared resource, or the preconfigured resource is shared by the terminal or other terminals, which is a shared resource.

As an implementation: if the terminal has preconfigured resources, if the terminal does not have a valid TA, step 601 may be implemented in the following manner: the terminal transmits the first packet data and the first message using Msg3/MsgA. If the TA timer of the terminal is valid, the terminal has a valid TA. When the TA timer of the terminal expires, the terminal has no valid TA.

As another implementation: in the case that the terminal has preconfigured resources, if the terminal has obtained a valid TA, step 601 can be implemented in the following manner: the terminal transmits the first packet data and the first message by using the preconfigured resources.

When the terminal has data transmission requirements, the terminal can decide whether to use the small data transmission scheme according to the size of the data packet to be transmitted. The data packet to be transmitted is the first small packet data, and it is decided to transmit the first small packet data by using Msg3 or MsgA or a preconfigured resource mode. For example, if the size of the data packet currently to be transmitted by the terminal is larger than the size of the preset data block, the terminal determines that the current data packet to be transmitted is divided into the first small packet of data and the data to be transmitted. Then, the first small packet of data is firstly transmitted by means of Msg3 or MsgA or preconfigured resources, and the network device is notified that there is still data to be transmitted.

The small packet data involved in the embodiments of the present application may be smartphone-related services, such as instant messages of WeChat and QQ, heartbeat packets or push messages of application software; and non-smartphone-related services, such as periodic data of wearable devices Examples include heartbeat packets, periodic readings sent by industrial wireless sensor networks, smart meters, and more.

In a possible implementation manner, the first message includes an indication, where the indication is used to indicate that the terminal has subsequent data to be transmitted.

In a possible implementation manner, the data to be transmitted is the second packet data, and the terminal divides the first packet data and the second packet data from the first data. In other words, the first packet data and the second packet data are obtained by dividing the first data. The size of the first data is greater than the threshold size of the data block of the small packet data broadcast by the network device. For example, if the first data is 100 bytes and the size of the data block broadcast by the network device is 60 bytes, the terminal can divide the first data into a first small packet of 60 bytes and a second small packet of 40 bytes. data.

In a possible implementation manner, the data to be transmitted is the second data, and the terminal divides the first packet data and the second data from the first data. In other words, the first packet data and the second data are obtained by dividing the first data. For example, if the first data is 100 bytes (bytes), and the data block threshold size of the small packet data broadcast by the network device is 40 bytes, the terminal can divide the first data into the first small packet data of size 40 bytes and the size of 60 bytes. the second data.

In a possible implementation manner, the first small packet of data and the data to be transmitted come from different data packets. At this time, the data to be transmitted may be non-small packet data (that is, data larger than the data block threshold size broadcast by the network device), or may be small packet data, which is not limited in this embodiment of the present application.

In a possible implementation manner, step 601 in this embodiment of the present application may be implemented in the following manner: in a non-connected state (for example: RRC-disconnected state), the terminal sends the first small packet of data and the first small packet to the network device information. The disconnected state may refer to that the terminal is in an RRC-idle state, or the terminal is in an RRC-inactive state.

Step 602: The network device sends the first information and/or the second information to the terminal. Correspondingly, the terminal receives the first information and/or the second information from the network device.

The first information is used to indicate the transmission mode of the data to be transmitted. The second information is used to indicate a transmission resource for transmitting data to be transmitted.

The above step 602 can be replaced by the following methods:

Manner 1: The network device sends the first information to the terminal, and accordingly, the terminal receives the first information from the network device. For mode 1, the first information may further indicate the transmission resource of the data to be transmitted.

Manner 2: The network device sends the second information to the terminal, and accordingly, the terminal receives the second information from the network device. For mode 2, the second information may implicitly indicate the transmission mode of the data to be transmitted. For example, if the transmission resource indicated by the second information is a preconfigured resource, the terminal may confirm, according to the second information, that the transmission mode is to use the preconfigured resource to transmit the data to be transmitted. For another example, if the transmission resource indicated by the second information is not a preconfigured resource, the terminal may confirm that the transmission mode is another mode (for example, random access or dynamic scheduling mode) according to the second information.

Manner 3: The network device sends the first information and the second information to the terminal. Correspondingly, the terminal receives the first information and the second information from the network device.

The above-mentioned first information and second information may be carried in the same message. For example, the message X carries the first information and the second information. For example, message X carries field 1 and field 2. Wherein, field 1 indicates the first information. Field 2 indicates the second information.

Of course, the sum of the first information and the second information may be carried in different messages. For example, the message X carries the second information, and the message Y carries the first information, which is not limited in this embodiment of the present application. For example, message X has field 1, which indicates the first information. This message Y has field 2 in it. Field 2 indicates the second information. Alternatively, the above-mentioned first information and second information may also be the same information. Either the second information is located in the first information, or the first information is located in the second information.

For example, the transmission mode includes one of the following: data transmission is performed by initiating a random access procedure, data transmission is performed by using a pre-configured uplink resource method, or data transmission is performed by using a dynamic scheduling method.

In the embodiment of the present application, the data transmission by initiating the random access process refers to: the network device instructs the terminal to simultaneously send the data to be transmitted to the network device during the initiating the random access process. In this way, it is convenient for the terminal to send the data to be transmitted to the network device by using the message 3 or the message A in the random access process after transmitting the first small packet of data.

In this embodiment of the present application, using preconfigured resources for data transmission means that the terminal can send data to be transmitted to the network device by using preconfigured resources in one or more sets of preconfigured resource groups that the terminal has.

In the embodiment of the present application, the use of dynamic scheduling for data transmission refers to that the terminal can send data to be transmitted to the network device by using the dynamic resources dynamically configured by the network device for the terminal.

Step 603: The terminal sends the data to be transmitted to the network device according to the transmission mode and/or transmission resource, and accordingly, the network device receives the data to be transmitted sent by the corresponding transmission mode and/or transmission resource adopted by the terminal.

As an example, when the first information is used to indicate that the transmission mode of the data to be transmitted is the dynamic scheduling mode, if the first information further indicates that the dynamic resources dynamically allocated by the network device are used as transmission resources, or the second information indicates that the If the dynamic resources dynamically allocated by the network device are used as transmission resources, then step 603 can be implemented in the following manner. The terminal sends the data to be transmitted to the network device on the dynamic resources allocated by the network device according to the dynamic scheduling method.

As another example, the first information is used to indicate that the transmission mode of the data to be transmitted is to send the data to be transmitted in message 3 in the random access process, then step 603 can be implemented in the following way: the terminal is in the random access process. In message 3, the data to be transmitted is sent to the network device.

As another example, the first information is used to indicate that the transmission mode of the data to be transmitted is to send the data to be transmitted in the message A during the random access process, then step 603 can be implemented in the following manner: the terminal is in the random access process. Send the data to be transmitted to the network device in message A.

As a further example, the first information is used to indicate that the transmission mode of the data to be transmitted is a preconfigured resource mode, and the first information is used to indicate the information of the target preconfigured resource, or the second information is used to indicate the target preconfigured resource. information, then step 603 can be implemented in the following manner: the terminal transmits the data to be transmitted to the network device on the target preconfigured resource in a preconfigured manner.

As another example, when the terminal receives the second information but does not receive the first information, and the second information indicates that the transmission resources are pre-configured resources, step 603 may be implemented in the following manner: the terminal determines, according to the second information, that the transmission mode is: pre-configured, and transmit the data to be transmitted to the network device on the target pre-configured resource indicated by the second information, or the terminal uses the pre-configured method to transmit the data to the network on the target pre-configured resource selected by the terminal from one or more sets of pre-configured resources. The device transmits the data to be transmitted.

As another example, when the terminal receives the second information but does not receive the first information, and the second information indicates that the transmission resource is not a preconfigured resource, step 603 may be implemented in the following manner: Message A or message 3 sends data to be transmitted to the network device.

In the above, the network device uses the first information or the second information to indicate one transmission mode as an example. Of course, the network device may also indicate two or more transmission modes to the terminal at the same time. The terminal may select one transmission mode from two or more transmission modes indicated by the network device. For example, if the first information indicates that the transmission mode is to transmit the data to be transmitted by initiating a random access procedure or to transmit the data to be transmitted in a pre-configured mode, the terminal may randomly select a transmission mode as the transmission mode of the data to be transmitted. Alternatively, the terminal determines, according to the transmission mode of the first small packet data, to select one of the transmission modes of the data to be transmitted by initiating the random access procedure or the transmission of the data to be transmitted in a preconfigured mode as the transmission mode of the data to be transmitted. In this embodiment of the present application, the transmission mode in which the terminal transmits the first small packet data and the transmission mode in which the terminal transmits the data to be transmitted may be the same or different. For example, if the terminal transmits the first small packet of data by using message A in the random access process, the terminal may also transmit the data to be transmitted in message A in the random access process based on the indication of the network device. Another example is that the terminal transmits the first small packet of data in a pre-configured manner, and the terminal may also transmit the data to be transmitted in a pre-configured manner based on an instruction of the network device. For example, if the terminal transmits the first small packet of data in a pre-configured manner, and the network device instructs the terminal to transmit the data to be transmitted by initiating a random access process, the terminal sends the data to be transmitted in message A or message 3 in the random access process.

In a possible embodiment, the terminal sends auxiliary information to the network device in the process of sending the data to be transmitted to the network device. The auxiliary information is used by the network device to determine that the terminal has other data to be transmitted subsequently. For example, the data to be transmitted and the auxiliary information may be carried in the same message or in different messages, which is not limited in this embodiment of the present application.

The embodiment of the present application provides a method for indicating data transmission. Because in the prior art, if the network device does not indicate to the terminal the transmission mode of subsequent data to be transmitted, there may be a possibility that the terminal does not know the subsequent transmission mode and preferentially uses preconfigured resources In the case of transmitting data to be transmitted, but if the preconfigured resource is unavailable, and the terminal does not know that the preconfigured resource is unavailable, and blindly using it to transmit data may cause data transmission failure, therefore, in this method, the terminal can send the data to the terminal. In the case where the network device sends the first small packet of data, the network device determines, according to the first message, that the terminal has subsequent data to be transmitted, then the network device sends one or more of the first information and the second information to the terminal, so that the terminal can Determine the transmission mode and/or transmission resources of the data to be transmitted subsequently sent to the network device. On the one hand, the terminal adopts the transmission mode and/or transmission resources indicated by the network device to avoid data transmission failure caused by the terminal blindly using preconfigured resources to transmit data to be transmitted, thereby ensuring the reliability of subsequent data transmission and improving the data transmission of the terminal. quality. On the other hand, the terminal transmits the data to be transmitted to the network device through the transmission mode and/or transmission resource indicated by the network device, so that the network device can determine the location where the data to be transmitted is received.

The following will introduce the transmission method used by the network device to instruct the terminal to transmit the data to be transmitted:

In case 1), the terminal transmits the data to be transmitted in a dynamic scheduling manner.

In case 1), as shown in Figure 8, as another embodiment of the present application, the method includes:

Step 801: When the terminal is in the RRC-connected state or when the terminal enters the RRC-disconnected state from the RRC-connected state, the network device sends the first configuration information and/or the second configuration information to the terminal. Correspondingly, the terminal receives the first configuration information and/or the second configuration information from the network device.

The first configuration information is used to configure the first preconfigured resource. For example, the first CG resource. The second configuration information is used to indicate the timing duration of the first timer. Exemplarily, the first preconfigured resource may be a periodic resource.

As an example, in this embodiment of the present application, the first configuration information and the second configuration information may be carried in the same message, or may be carried in different messages. The second configuration information may be located in the first configuration information. For example, the first configuration information includes configuration information of the first preconfigured resource. The configuration information of the first preconfigured resource includes the time-frequency position of the first preconfigured resource and the period of the first preconfigured resource. In addition, the configuration information of the first preconfigured resource further includes second configuration information.

The foregoing network device sending the first configuration information and/or the second configuration information to the terminal may include: the network device sending the first configuration information to the terminal, and correspondingly, the terminal receiving the first configuration information from the network device. As an optional implementation, the first configuration information is further used to indicate the timing duration of the first timer.

Alternatively, sending the first configuration information and/or the second configuration information from the network device to the terminal may include: the network device sends the first configuration information and the second configuration information to the terminal, and accordingly, the terminal receives the first configuration information and/or the second configuration information from the network device. second configuration information. Alternatively, sending the first configuration information and/or the second configuration information by the network device to the terminal may include: the network device sending the second configuration information to the terminal, and correspondingly, the terminal receives the second configuration information from the network device. In this case, the terminal has been configured with the first preconfigured resource, and the second configuration information is used to indicate that the first timer is associated with the first preconfigured resource.

The periodic resources in the embodiments of the present application refer to: preconfigured resources that appear according to a preset period. For example, taking the preset period as period 1 and period 1 equal to 1 timeslot as an example, the first time domain position of preconfigured resource 1 is timeslot 1, then the symbol of preconfigured resource 1 in timeslot 2 for the second time 1 appears, and so on, until the preconfigured resource 1 becomes invalid.

In one aspect, the first configuration information and the second configuration information may be located in the same message (eg, an RRC message). On the other hand, the first configuration information and the second configuration information are the same information.

As a specific implementation, when the terminal is in a connected state (such as an RRC-connected state), the network device actively sends the first configuration information and/or the second configuration information to the terminal.

As another specific implementation, when the terminal is in the RRC-connected state, the network device sends the first configuration information and/or the second configuration information to the terminal based on a request of the terminal, which is not limited in this embodiment of the present application.

As a further specific implementation, the network device configures the terminal with first preconfigured resources and/or a first timer based on the terminal's request, for example, the network device sends an RRC connection release message to the terminal, where the RRC connection release message includes the first preconfigured resource and/or a first timer. a configuration information and/or a second configuration information. The RRC connection release message is used by the terminal to determine to enter the RRC-disconnected state from the RRC-connected state.

Step 802: The terminal determines the first preconfigured resource according to the first configuration information, and determines the timing duration of the first timer according to the second configuration information.

Alternatively, step 802 may be replaced by: the terminal determines the first preconfigured resource and the timing duration of the first timer according to the first configuration information.

Alternatively, step 802 may be replaced by: the terminal determines the timing duration of the first timer according to the second configuration information, and determines the preconfigured resource associated with the first timer as the first preconfigured resource.

The timing duration of the first timer is related to the period of the first preconfigured resource. For example, the timing duration of the first timer is greater than or equal to the period of the first preconfigured uplink resource. The first timer is used to control the terminal's use of the first preconfigured resource. Different from dynamic scheduling resources, the terminal can reduce signaling overhead and data delay by sending data on preconfigured resources.

For example, the network device sends the first configuration information to the terminal, but does not send the second configuration information. The terminal may use the default duration as the timing duration of the first timer, or the terminal may independently determine the timing duration of the first timer, or the terminal and the network device may negotiate the default duration of the first timer in advance, or the terminal may determine the duration of the first timer according to the first timer. Second, the identifier of the first timer indicated in the configuration information determines the timing duration of the first timer from a preconfigured relationship.

For example, as shown in Table 1:

Table 1

定时器的标识ID of the timer	定时时长 Timing time

定时器1Timer 1	T1 T1

定时器2timer 2	T2T2

For example, in combination with Table 1, the terminal has a relationship between timer 1 and timing duration T1, then if the terminal determines that the first timer is timer 1, the terminal determines that the timing duration of the first timer is T1.

Of course, in a specific implementation process, only the first preconfigured resource may be configured without configuring the timing duration of the first timer, which is not limited in this embodiment of the present application.

For example, if the network device sends both the first configuration information and the second configuration information to the terminal, the terminal may determine the timing duration of the first timer according to the second configuration information. The second configuration information may be a field in the first configuration information indicating a timing duration. For example, the second configuration information may be information used to indicate the timing duration of the first timer. For example, the second configuration information is T1.

For example, if the network device sends the second configuration information to the terminal, and the terminal has been configured with one or more sets of preconfigured resources in advance, then the terminal can select one or more sets of preconfigured resources according to the first timer. The first preconfigured resource is determined in . For example, if the terminal has preconfigured resource 1 and preconfigured resource 2, if the first timer indicated by the second configuration information is timer 1, and the terminal pre-stores the association between timer 1 and preconfigured resource 1, or the network When the device sends the association relationship to the terminal in the process of sending the second configuration information to the terminal, the terminal may determine the preconfigured resource 1 as the first preconfigured resource according to the association relationship.

It should be noted that, in the specific implementation process, the network device may not configure the first preconfigured resource for the terminal, that is, the above steps 801 to 802 may be omitted.

It should be noted that, after the network device configures the first preconfigured resource for the terminal and before the terminal performs step 803, if the terminal does not have uplink transmission, the terminal enters the RRC-disconnected state from the RRC-connected state. Step 803 is then executed in the RRC-disconnected state.

Step 803 is the same as step 601 and will not be repeated here.

Step 804: The network device sends the first information and the second information to the terminal. Correspondingly, the terminal receives the first information and the second information from the network device. The first information is used to indicate that the data to be transmitted is transmitted in a dynamic scheduling manner. The second information is used to indicate the transmission resources allocated for the dynamic scheduling mode. Correspondingly, in case 1), the transmission resource is the transmission resource dynamically allocated by the network device for the terminal.

Alternatively, step 804 may be replaced with: the network device sends the first information to the terminal, and correspondingly, the terminal receives the first information from the network device. The first information is used to indicate the transmission mode of the data to be transmitted, and the first information is also used to indicate the transmission resource of the data to be transmitted. For example, the first information is used to indicate that the to-be-transmitted data is transmitted by the dynamic scheduling mode and is used to indicate the transmission resources allocated for the dynamic scheduling mode.

As an example, the first information is used to indicate the transmission mode of the data to be transmitted, and the first information is also used to indicate the transmission resource of the data to be transmitted, including: the first information is information in a first format, and the first format is used to indicate The transmission mode of the data to be transmitted. The information in the first format carries a first field, and the first field is used to indicate the transmission resource of the data to be transmitted. For example, the information in the first format may be DCI dedicated to dynamic scheduling.

In an example, the first information and the second information may be carried in the DCI transmitted on the physical downlink control channel (Physical Downlink Control Channel, PDCCH) on which the network device schedules transmission resources. For example, the second information and the first information may be located in the scheduling information included in the DCI, or the first information and the second information are the scheduling information. In another example, the first information is DCI, and the second information is scheduling information in the DCI, which is not limited in this embodiment of the present application. Alternatively, the network device carries the first information and the second information in different messages and sends them to the terminal.

As a possible implementation manner, step 804 in this embodiment of the present application or step 602 above may be implemented in the following manner: the terminal does not have preconfigured resources capable of transmitting data to be transmitted, that is, the network device determines that the terminal does not have available preconfigured resources. In the case of configuring resources, the first information and the second information are sent to the terminal.

In this embodiment of the present application, the terminal that does not have preconfigured resources for transmitting data to be transmitted may include the following meanings:

Meaning 1), one or more sets of preconfigured resources possessed by the terminal are shared resources, and the one or more sets of preconfigured uplink resources are all occupied by other terminals. Or part of the preconfigured resources in the one or more sets of preconfigured uplink resources are occupied by other terminals.

For example, a terminal has 4 sets of pre-configured resources, for example: CG resource 1, CG resource 2, CG resource 3 and CG resource 4, the 4 sets of CG resources are shared by the terminal and other terminals, and among the 4 sets of CG resources For example, each set of CG resources is a periodic resource. In case 1), if the terminal adopts the random access method in step 803 or the terminal uses the CG resource 1 located at the time domain position 1 to send the first small packet of data to the network device, and After the network device receives the first small packet of data, it is determined that the terminal still has data to be transmitted. After that, the network device determines that CG resource 1, CG resource 2 to CG resource 4, or CG resource 2 to CG resource 4 located in other time domain positions are all occupied by other terminals. In order to prevent the terminal from transmitting subsequent data on the occupied CG resources, As a result, the data transmission fails, and the network device determines that the subsequent data transmission of the terminal is scheduled in a dynamic scheduling manner.

Meaning 2), when the terminal is in the RRC-connected state or the terminal enters the RRC-disconnected state from the RRC-connected state, the network device does not configure preconfigured resources for the terminal.

Meaning 3) Although the terminal has preconfigured resources, the preconfigured resources cannot be used to transmit the data to be transmitted. For example, the preconfigured resource is configured for special transmission of data other than the data to be transmitted.

As another possible implementation manner, step 804 or the above-mentioned step 602 in this embodiment of the present application may be implemented in the following manner: the network device determines that the terminal will not use the preconfigured resources to transmit data to be transmitted subsequently, and the network device sends the first data to the terminal. information and second information, or send the first information. In this case, even if the terminal has preconfigured resources, no matter whether the preconfigured resources are shared resources or not, if the network device expects the terminal to subsequently transmit data to be transmitted in other ways than the preconfigured resources, step 804 is performed.

In case 1), as shown in FIG. 8 , after step 804, the method provided by this embodiment of the present application may further include:

Step 805, when the terminal receives the first information, starts the first timer. During the running process of the first timer, the terminal stops using the first preconfigured resource to transmit the data to be transmitted. Wherein, the first preconfigured resource is a shared resource, or the first preconfigured resource is a non-shared resource. It can be understood that the above-mentioned first timer is associated with the first preconfigured resource.

On the one hand, the first preconfigured resource is a shared resource means that the first preconfigured resource can be used by the terminal and other terminals to transmit data on the first preconfigured uplink resource.

On the other hand, the fact that the first preconfigured resource is a non-shared resource means that the first preconfigured resource is individually configured for the terminal, and terminals other than the terminal cannot transmit data on the first preconfigured resource.

The first timer is a timer associated with the first preconfigured uplink resource.

For example, the first timer may be a preconfigured authorization timer (configuredGrantTimer), the terminal starts the configuredGrantTimer, and the configuredGrantTimer starts to count down.

It should be noted that, when the configuredGrantTimer times out, the terminal may transmit data on the first preconfigured resource.

In a possible implementation manner, as shown in FIG. 8 , step 603 in this embodiment of the present application may be implemented by step 806:

Step 806: The terminal sends the data to be transmitted to the network device on the dynamically allocated transmission resources according to the dynamic scheduling method. Correspondingly, the network device receives the data to be transmitted from the terminal on the transmission resource allocated for the terminal.

In a possible embodiment, as shown in FIG. 8 , the method provided by the embodiment of the present application may further include:

Step 807: The network device sends the third configuration information to the terminal, and accordingly, the terminal receives the third configuration information from the network device.

The third configuration information is used to indicate the timing for updating the first timer.

As an example, the third configuration information is carried in an RRC release message (RRCRelease). For example, the RRC release message may be the RRC connection release message in the solution shown in FIG. 5a, or the RRC message used in the solution shown in FIG. 5b, or other corresponding messages may be sent in other cases.

This step 807 may be located after step 806, that is, after the terminal sends the data to be transmitted, the network device sends the third configuration information to the terminal. This step 807 may also be located before step 805, that is, before the terminal sends the data to be transmitted, the network device sends the third configuration information to the terminal.

In a possible embodiment, after step 806, the method provided by this embodiment of the present application may further include: the network device sends an indication message to the terminal, where the indication message is used to indicate that the network device correctly receives the to-be-transmitted data.

In the embodiment shown in case 1), in order to avoid that the transmission resources dynamically scheduled by the network device for the terminal (dynamic grant (DG) as shown in FIG. 9 ) are later than the first pre-configuration available to the terminal resource, and the terminal selects the first preconfigured resource to send the data to be transmitted to the terminal before the dynamic scheduling resource of the network device. Therefore, the network device can send the first preconfigured resource to the terminal before the time domain location of the first preconfigured resource. at least one of a message and a second message. The time domain location where the first preconfigured resource is located may refer to a time domain location in a set of first preconfigured resources that can be used for sending the data to be transmitted earliest after the terminal sends the first small packet of data.

For example, taking the first preconfigured resource as CG resource 1 as an example, after the terminal sends the first small packet of data, there are CG resource 1 located at time domain position 1 and CG resource 1 located at time domain position 2, wherein the time domain Position 1 is earlier than position 2 in the time domain. If both the CG resource 1 located at the time domain position 1 and the CG resource 1 located at the time domain position 2 can be used to send the data to be transmitted, the network device may send the first information and the second information to the terminal before the time domain position 1 at least one of. If the CG resource 1 located at the time domain position 1 cannot be used to send the data to be transmitted, but the CG resource 1 located at the time domain position 2 can be used to send the data to be transmitted, the network device may send the first data to the terminal before the time domain position 2. at least one of a message and a second message.

It is worth noting that, in the embodiment shown in FIG. 8 , if the network device does not configure the first preconfigured resource for the terminal or the terminal does not have the first preconfigured resource, the above steps 801 , 802 , and 802 Step 805 and step 807 can be omitted.

It is worth noting that, in case 1), in the above-mentioned embodiment shown in FIG. 8 , the network device explicitly indicates that the terminal transmission mode is the dynamic scheduling transmission mode (that is, the network device sends the first information and the second information to the terminal) as: For example, in the actual process, the network device may also implicitly indicate that the terminal transmission mode is the dynamic scheduling transmission mode. In the case of an implicit indication, the network device may not send the first information but send the second information, that is, the above step 804 may be replaced by the following manner: the network device sends the second information to the terminal. In this way, after receiving the dynamically scheduled transmission resource indicated by the network device using the second information, the terminal can determine that the network device instructs the terminal to transmit the data to be transmitted in the dynamically scheduled transmission manner.

Optionally, in case 1), if the terminal has other data to be transmitted after sending the data to be transmitted, the terminal may simultaneously report the auxiliary information. Subsequently, the network device may indicate, according to the auxiliary information, information of preconfigured resources used by other subsequent data to be transmitted or information of DG resources or a transmission method.

It is worth noting that, in case 1), regardless of whether the terminal uses the random access procedure or the preconfigured resource to transmit the first small packet of data, the terminal can subsequently transmit the data to be transmitted by dynamic scheduling according to the instructions of the network device. Of course, if the terminal transmits the first small packet of data in a dynamic scheduling manner, the subsequent terminal can still transmit the data to be transmitted in a dynamic scheduling manner according to the instruction of the network device, which is not limited in this embodiment of the present application.

In case 2), the terminal transmits the data to be transmitted by using a preconfigured resource mode, and the preconfigured resource mode is, for example, using a preconfigured periodic resource to transmit the data to be transmitted.

In case 2), as shown in Figure 10, as another embodiment of the present application, the method includes:

Steps 1001 to 1003 are the same as steps 801 to 803, and will not be repeated here.

Correspondingly, in case 2), the above step 602 can be implemented by step 1004:

Step 1004: The network device determines that the terminal has preconfigured resources capable of transmitting the data to be transmitted, and the network device sends the first information and the second information to the terminal. Correspondingly, the terminal receives the first information and the second information from the network device.

The transmission mode indicated by the first information is to transmit the data to be transmitted by using a preconfigured resource mode. The second information is used by the terminal to determine to use the target preconfigured resource in the preconfigured resources of the terminal as the transmission resource.

It should be noted that, when the network device explicitly indicates that the transmission mode is the preconfigured resource mode to transmit the data to be transmitted, the network device may send the first information and the second information to the terminal.

If the network device implicitly indicates that the transmission mode is the preconfigured resource mode to transmit the data to be transmitted, the network device may send the second information to the terminal instead of the first information, that is, the first information may be omitted.

Of course, if the terminal uses the first preconfigured resource to send the first small packet of data, the network device can also send the first information to the terminal. In this case, the terminal can determine that the network device instructs the terminal to send the The first preconfigured resource after that is used as a transmission resource. For example, taking the first preconfigured resource as CG resource 1 and CG resource 1 as a periodic resource as an example, if the terminal uses CG resource 1 at time domain location 1 to send the first small packet of data to the network device, the network device receives After the first small packet of data, the first information can be used to indicate to the terminal that the transmission mode is the preconfigured resource to transmit the to-be-transmitted data, and the CG resource 1 after 2 or 3 cycles is used to send the to-be-transmitted data to the network device.

The existence of preconfigured resources capable of transmitting data to be transmitted in a terminal in this embodiment of the present application may refer to: the preconfigured resources of the terminal are not occupied by other terminals, or the preconfigured resources of the terminal are used solely by the terminal.

As an example, in the case where the terminal uses the first preconfigured resource to send the first small packet of data, the target preconfigured resource in case 2) may be the first one or more cycles after the moment when the first small packet of data is sent. The preconfigured resources, in other words, the preconfigured resources for sending the first small packet data and the preconfigured resources for sending the data to be transmitted are the first preconfigured resources located in different time domain positions. For example, as shown in (c) of FIG. 11 , the terminal uses the CG resource 1 that appears for the first time in the time domain position 1 to send the first small packet of data, and the subsequent terminal can use the CG resource 1 that appears for the second time in the time domain position 2. Resource 1 sends data to be transmitted.

As another example, the terminal uses the first preconfigured resource to send the first small packet of data, or the terminal uses message 3 or message A in the random access process to send the first small packet of data, or the terminal uses dynamic scheduling for transmission In the case where the first packet data is sent on the dynamically scheduled transmission resource, the target preconfigured resource may be the second preconfigured resource. The second preconfigured resource and the first preconfigured resource belong to different sets of preconfigured resources. For example, as shown in (c) of FIG. 11 , the terminal uses CG resource 1 located at time domain position 1 to send the first small packet of data, and subsequent terminals can use CG resource 3 located at time domain position 3 to send data to be transmitted.

For example, assuming that the terminal has multiple sets of CG resources (for example, as shown in (a) and (b) in FIG. 11 ), if the priority of using CG resources to transmit data is the highest, the It includes CG resource 1, CG resource 2, CG resource 3, and CG resource 4. For example, CG resource 1 to CG resource 4 are periodic resources. As shown in (a) of Figure 11, if CG resource 2, CG resource 4 3. If the CG resource 4 is occupied by other terminals, the network device can use the second information to indicate that the CG resource 1 is used as the transmission resource, that is, to indicate that the terminal can use the CG resource 1 for subsequent data transmission. For another example, as shown in (b) of FIG. 11 , both CG resource 2 and CG resource 4 are occupied by other terminals, and the network device may send the second information, indicating that the terminal can use CG resource 1 or CG resource 3 for subsequent data transmission. , that is, the terminal can select one or more resources from CG resource 1 or CG resource 3 as transmission resources to transmit data to be transmitted.

As an example, the second information and the first information may be carried in the same message. For example, the second information and the first information can be carried in any one of the RRC message/media access control layer (Medium access control, MAC) control element CE (control element, CE)/DCI, and the following will be introduced respectively:

Example 1-1. When the message carrying the second information and the first information is an RRC message, the first information element (Information element, IE) may be carried in the RRC message. The meaning of the first IE may be: indicating to the terminal that the transmission mode is the preconfigured resource mode to transmit the data to be transmitted, and indicating the transmission resource. Or the meaning of the first IE may be to indicate to the terminal to use the target preconfigured resource as the resource to be transmitted. The first IE in the RRC message in the embodiment of the present application is an optional IE.

One possible indication is as follows:

For example, the first IE includes a first bit part and a second bit part. The first bit part is the above-mentioned first information, and the second bit part is the above-mentioned second information. The first bit part indicates that the to-be-transmitted data is specifically transmitted in a preconfigured resource manner. The second bit part indicates that the specific transmission resource of the scheme is specifically used.

It should be noted that when the network device explicitly indicates that the transmission mode is the preconfigured resource mode to transmit the data to be transmitted, at this time, the first IE includes a first bit part and a second bit part. If the network device implicitly indicates that the transmission mode is the preconfigured resource mode to transmit the data to be transmitted, at this time, the first IE may include the second bit part but not the first bit part, that is, the first information may be omitted. Both the first bit part and the second bit part in this embodiment of the present application may include one or more bits. For example, taking the first bit part including 2 bits indicating a specific scheme as an example, then as shown in Table 2:

Table 2

Then, if the above-mentioned Table 2 is configured in the terminal, if the first information is 10, the terminal can determine according to the first information that the network device instructs the terminal to transmit the data to be transmitted by means of preconfigured resources.

Another possible way is as follows:

The terminal may be configured with Table 3 or the network device sends Table 3 and the first information to the terminal, and then the first information indicates that the use of preconfigured resources to transmit data to be transmitted is in an enabled state, then the terminal can determine to use preconfigured resources to transmit data. data to be transmitted. In addition, the first information is also used to indicate that other modes except the preconfigured resource mode are in a disabled state.

For example, as shown in Table 3, in Table 3, an indicator of 1 indicates that it is in an enabled state, and an indicator of "0" indicates that it is in a non-enabled state.

table 3

In combination with Table 3, if the first information is in the form of Table 3, the terminal can determine according to the first information to use the message 3 in the random access process for data transmission, use the message A in the random access process for data transmission, and Indicates that data transmission using the dynamic resource scheduling method is unavailable, but using the preconfigured resource method to transmit the data to be transmitted is available, that is, the terminal can determine that the network device instructs the terminal to use the preconfigured resource method to transmit the data to be transmitted.

Another possible implementation manner is as follows: the first information is an integer type, integer {first value, second value}, and the value of the first information may be the first value. Or the value of the first information may be the second value. The first value may be 1, and the second value may be 0. Or the first value is 0 and the second value is 1. When the value of the first information is the first value (take 0 as an example), it indicates that the preconfigured resources are available, and the terminal can determine that the network device instructs the terminal to use the preconfigured resources to transmit the data to be transmitted. When the value of the first information is the second value (take 1 as an example), it indicates that the preconfigured resource is unavailable, that is, the network device indicates to the terminal that the preconfigured resource is not available to transmit the data to be transmitted by using the preconfigured resource.

Another possible implementation is as follows: the first information is an enumeration type, enumerated{true,false}, the value of the first information is false, indicating that the preconfigured resource is available, then the terminal can determine that the network device instructs the terminal to use The data to be transmitted is transmitted in the preconfigured resource mode. When the value of the first information is true, it indicates that the preconfigured resource is unavailable, that is, the network device indicates to the terminal that the preconfigured resource is unavailable to transmit the data to be transmitted by using the preconfigured resource. Alternatively, if the value of the first information is true, it indicates that the preconfigured resources are available, and then the terminal can determine that the network device instructs the terminal to use the preconfigured resources to transmit the data to be transmitted. When the value of the first information is false, it indicates that the preconfigured resource is unavailable, that is, the network device indicates to the terminal that the preconfigured resource is unavailable to transmit the data to be transmitted by using the preconfigured resource.

As another example, when the first IE is carried in the RRC message, it indicates that the terminal has no preconfigured resources for transmitting the data to be transmitted and needs to initiate random access to transmit the data to be transmitted. When the first IE is not carried in the RRC message, it indicates that the terminal can transmit the data to be transmitted through the preconfigured resources. Alternatively, when the first IE is not carried in the RRC message, it indicates that the terminal has no preconfigured resources for transmitting the data to be transmitted and needs to initiate random access to transmit the data to be transmitted. When the first IE is carried in the RRC message, it indicates that the terminal can transmit the data to be transmitted through the preconfigured resources.

As an example, the second information is used to indicate the information of the target preconfigured resource. For example, the information of the target preconfigured resource may be the time-frequency position of the target preconfigured resource or the identifier of the target preconfigured resource, or other information that can be used to identify the target preconfigured resource, which is not limited in this embodiment of the present application.

For example, the second information may be the identifier of the CG resource 8 and the identifier of the CG resource 5 .

For example, assuming that the terminal can be configured with 8 sets of CG resources at most, if the network device indicates a set of available CG resources to the terminal, 3 bits can be used to indicate which set is available. When the network device indicates two sets of available CG resources, 3bit+3bit can be used to indicate which two sets are available. For example, as shown in Table 4:

Table 4

CG资源的索引Index of CG resources	第二信息second information

CG资源1CG resource 1	000000
CG资源2 CG resource 2	001001
CG资源3CG resource 3	010010
CG资源4 CG resource 4	011011
CG资源5CG resource 5	100100
CG资源6CG resource 6	101101
CG资源7CG resource 7	110110
CG资源8CG resource 8	111111

For example, if the network device determines that the CG resource 8 can be used to transmit the data to be transmitted, the second information may be "111". For example, if the network device determines that both the CG resource 8 and the CG resource 5 can be used to transmit the data to be transmitted, the second information may be "111" and "100".

As another example, the second information includes at least one bit associated with each set of preconfigured resources in one or more sets of preconfigured resources of the terminal, and at least one bit associated with any set of preconfigured resources is used to indicate the preconfigured resources it's usable or not. The one or more sets of preconfigured resources are all periodic resources, or the one or more sets of preconfigured resources include at least one set of aperiodic resources.

For example, the second information is a plurality of bits, each bit of the plurality of bits is associated with a set of CG resources, and the indicator of any one bit is a "first indicator" indicating that the CG resource associated with the bit is available. If the indicator of any bit is "second indicator", it means that the CG resource associated with this bit is unavailable. For example, the first indicator may be 1 and the second indicator may be 0.

For example, assuming that the terminal can be configured with a maximum of 8 sets of CG resources, the second information includes 8 bits. Taking the second information as "10000011" as an example, the second information is used to indicate to the terminal the CG resource 1 associated with the first bit. Available, the CG resource 7 associated with the seventh bit is available, and the CG resource 8 associated with the eighth bit is available, while the remaining CG resources are unavailable.

As another possible example, if two or more CG resources are available in multiple sets of CG resources of the terminal, the two or more CG resources may be associated with the same indication information. In this way, the terminal can determine two or more CG resources associated with the same indication information as available resources.

For example, as shown in Table 5-1 or as shown in Table 5-2:

Table 5-1

资源的标识ID of the resource	指示信息Instructions
CG资源1的标识Identification of CG resource 1	--
CG资源2的标识Logo of CG Resource 2	--
CG资源3的标识Logo of CG Resource 3	11
CG资源4的标识Logo of CG Resource 4	11

Table 5-2

What Table 5-1 and Table 5-2 have in common is that CG resource 3 and CG resource 4 are both associated with indication information "1", but in Table 5-1, CG resource 3 and CG resource 4 are each associated with one indication information , and in Table 5-2, CG resource 3 and CG resource 4 are associated with the same indication information. Therefore, combining Table 5-1 and Table 5-2, the terminal can determine that CG resource 3 and CG resource 4 can be used for The transmission resource for transmitting the data to be transmitted. In addition, it is worth noting that, in order to save signaling overhead, if the network device determines that CG resource 1 and CG resource 2 are unavailable, the network device can omit the indication that CG resource 1 and CG resource 2 are unavailable to the terminal, that is, Table 5 -1 and the rows of CG resource 1 and CG resource 2 in Table 5-2 can be omitted. For example, the first information may include {identity of CG resource 3, identity of CG resource 4, 1}.

In another possible example, the second information indicates information of unavailable preconfigured resources in one or more sets of preconfigured resources of the terminal. For example, if the terminal has CG resource 1 and CG resource 2, and the second information indicates that CG resource 2 is unavailable, the terminal can determine to use CG resource 1 as a transmission resource for transmitting data to be transmitted.

It should be noted that, if one or more sets of preconfigured resources possessed by the terminal are configured for the terminal alone, that is, one or more sets of preconfigured resources are non-shared resources, or one or more sets of preconfigured resources possessed by the terminal If it is not occupied by other terminals, the network device may send the first information to the terminal in step 1004 without sending the second information, that is, the second information may be omitted, so that the terminal determines according to the first information that the transmission mode is: When the transmission is performed in a pre-configured manner, it may be determined to select a set of pre-configured resources from one or more sets of pre-configured resources as transmission resources for transmitting data to be transmitted.

Example 1-2. When the message carrying the first information and the second information is a MAC CE: a first MAC CE with an LCID value can be defined, where the LCID can represent the function of each MAC CE, and the MAC CEs of different functions are specific. LCID with different values. Specifically, the above-mentioned first information and second information may be represented by a subheader (subheader) of the first MAC CE, or represented by the first MAC CE. Figure 12 is a schematic diagram of the MAC CE subheader, R is a reserved bit, F indicates the length of the subsequent transmission (subsequent indication) (F takes 0 for 8 bits or F takes 1 for 16 bits), LCID indicates the function of the MAC CE, The subsequent indication is the above-mentioned first information and second information. The first information and the second information included in the MAC CE are similar to those in the above example 1-1, and are not repeated here.

Example 1-3, when the message carrying the first information and the second information is DCI: a new DCI format (format) can be defined or the above-mentioned first information and second information can be added to the existing DCI format. For the content of the first information and the second information included in the DCI, refer to the description in the foregoing example 1-1, and details are not repeated here.

In a possible implementation manner, as shown in FIG. 10 , the above step 603 can be implemented by step 1005:

Step 1005 , the terminal sends the data to be transmitted to the network device on the target preconfigured resource in a preconfigured resource manner. Correspondingly, the network device receives the data to be transmitted from the terminal on the target preconfigured resource.

Combining the above example, the transmission resource (for example: target pre-configured resource) indicated by the network device to the terminal may be one or more sets. If the target pre-configured resource indicated by the network device to the terminal is CG resource 1, then the terminal can Data to be transmitted is sent to the network device on resource 1. If there are multiple sets of target pre-configured resources indicated by the network device to the terminal, the terminal may select one set of CG resources for transmitting the data to be transmitted. For example, the terminal selects the CG resource with the highest priority from multiple sets of CG resources to transmit the data to be transmitted. For example, the terminal selects one set of the data to be transmitted to transmit the data to be transmitted. For example, the terminal selects a CG resource with better quality according to the quality of multiple sets of CG resources to transmit the data to be transmitted.

In a possible embodiment, as shown in FIG. 10 , after step 1005, the method provided by this embodiment of the present application may further include:

Step 1006: The network device sends a message to the terminal, and the terminal receives the message from the network device. This message is used to indicate that the network device successfully receives the data to be transmitted. Or used to indicate that the above-mentioned transmission process of the data to be transmitted has been completed.

Step 1004 in FIG. 10 above takes the network device explicitly instructing the terminal to use preconfigured resources to transmit data to be transmitted as an example. In actual process, the network device may also implicitly instruct the terminal to use preconfigured resources to transmit data to be transmitted. At this time, step 1004 can be replaced by the following manner: there is a resource capable of transmitting the data to be transmitted in the preconfigured resources of the terminal, and the network device sends the second information to the terminal. For the content of the second information, reference may be made to the descriptions in Example 1-1 to Example 1-3 above, and details are not repeated here.

In the embodiment shown in FIG. 10 , the network device may also send the first information to the terminal without sending the second information. In this case, in addition to indicating that the transmission mode is to use preconfigured resources to transmit the data to be transmitted, the first information also uses Information indicating the target transmission resource. For example, the first information is represented by the first IE and the second IE carried in the RRC message, DCI or MAC CE. Wherein, the first IE is used to indicate that the preconfigured resource is used to transmit the data to be transmitted. The second IE is used to indicate the information of the target transmission resource. For example, if the first IE is 2 bits, the first bit may be 00 as shown in Table 2. Taking the second IE as 3 bits as an example, the second IE may be 001 as shown in Table 4, to indicate that the target preconfigured resource is CG resource 2. It is worth noting that, if the network device implicitly indicates that the transmission mode of the terminal is to use preconfigured resources to transmit the data to be transmitted, the first IE may be omitted, that is, the first IE is optional at this time. Or if the network device does not indicate the information of the target transmission resource, the second IE may be omitted, that is, the second IE is optional at this time. Or both the first IE and the second IE are optional.

In the embodiment shown in FIG. 10 , the network device may also send the first information to the terminal without sending the second information. In this case, the terminal may select one preset from multiple sets of preconfigured resources possessed by the terminal according to the first information. Configure the resource as the target preconfigured resource.

In a possible embodiment, the time domain position of the target preconfigured resource is located after the first time point, and the first time point is determined by the time and the offset value when the terminal receives the feedback information from the network device. The feedback information is used to indicate that the network device successfully receives the first small packet of data. This moment is before the first point in time. For example, referring to the situation in FIG. 15b, the terminal sends the first small packet of data to the network device on the CG resource 1, and the terminal receives the feedback information sent by the network device at time 1, and the feedback information is used to indicate that it has successfully received data from the terminal. The first packet of data. Then the terminal can determine the first time point T1 according to time 1 and the gap shown in FIG. 15b. As shown in FIG. 15b, the CG resource 1 located at time domain position 4 is located after T1, while the CG resource 1 located at time domain position 3 is located before T1 or is parallel with T1 in time domain time, that is, for the terminal, the CG resource 1 is located in the time domain. Resource 1 may be invalid at time domain position 3, then the terminal may select CG resource 1 at time domain position 4 as the target CG resource. Among them, the gap here is the time for the terminal to perform corresponding processing, such as decoding feedback information, packet grouping, and so on.

In the embodiment shown in FIG. 10 , the network device sends one or more of the first information and the second information to the terminal, so that after the first small packet of data is sent, if the terminal still has data to be transmitted, the terminal uses One or more of the first information and the second information indicate to the terminal the target preconfigured resources used for subsequent data transmission, which ensures the reliability of the data to be transmitted subsequently.

It is worth noting that, in case 2), no matter whether the terminal adopts the random access process, or adopts the pre-configured resources, or adopts the dynamic scheduling mode to transmit the first small packet of data, the terminal can subsequently use the pre-configured resources according to the instructions of the network device. way to transmit the data to be transmitted. This embodiment of the present application does not limit this.

In case 3), the terminal determines to transmit the data to be transmitted by initiating random access.

As shown in FIG. 13, FIG. 13 shows a method for indicating data transmission provided by an embodiment of the present application, and the method includes:

Steps 1301 to 1303 are the same as the descriptions of steps 801 to 803, and are not repeated here.

It should be noted that steps 1301 to 1302 are optional steps, that is, the process of configuring preconfigured resources for the terminal can be omitted.

Step 1304: The network device sends the first information to the terminal. Correspondingly, the terminal receives the first information from the network device.

The first information may be carried in the second message. For example, the second message may be one of DCI, RRC message or MAC CE. Or, the first information is one of DCI, RRC message or MAC CE.

In a possible implementation manner, step 1304 provided in this embodiment of the present application may be replaced by the following manner: the network device sends the first information and the second information to the terminal. The second information is used to indicate the information of the transmission resource used for sending the data to be transmitted in the random access process. The first information and the second information may be the same information, or the first information and the second information may be carried in the same message, or carried in different messages, which are not limited in this embodiment of the present application.

In a possible implementation manner, if the network device does not send the second information to the terminal, optionally, the first information provided in this embodiment of the present application is also used to indicate transmission resources. For example, the first information includes a resource indication field and a transmission mode indication field. The transmission mode indication field indicates that the transmission mode is to transmit the data to be transmitted by initiating random access. The resource indication field is used to indicate the information of the transmission resource used for sending the data to be transmitted in the random access procedure.

Step 1305: The terminal sends the data to be transmitted to the network device by initiating a random access process. Correspondingly, the network device receives the data to be transmitted from the terminal during the random access process.

Example 3-1. Taking the first information carried in the RRC message as an example, the first IE in the RRC message may be used as the first information. The first IE is an optional IE in the RRC message.

In one aspect, the first information is used to indicate that the data to be transmitted is transmitted by initiating a random access procedure.

Then, the content of the first information is as follows:

For example, the first IE is an integer type, integer {third value, fourth value}, and the value of the first IE may be the third value. Or the value of the first IE may be the fourth value. The third value may be 1, and the fourth value may be 0. Or the third value is 0 and the fourth value is 1. When the value of the first IE is the third value (take 1 as an example), it indicates that the terminal does not have preconfigured resources capable of transmitting the data to be transmitted and needs to initiate random access to transmit the data to be transmitted. When the value of the first IE is a fourth value (take 0 as an example), it indicates that the terminal has preconfigured resources capable of transmitting data to be transmitted or that the preconfigured resources of the terminal are available.

Another possible implementation is as follows: the first IE is an enumerated (enumerated) type, enumerated{true,false}. The value of the first IE is true, indicating that the terminal does not have preconfigured resources capable of transmitting the data to be transmitted and needs to initiate random access to transmit the data to be transmitted. The value of the first IE being false indicates that the terminal has preconfigured resources capable of transmitting data to be transmitted or that the preconfigured resources of the terminal are available. Alternatively, the first IE is an enumerated type, enumerated{true,false}. The value of the first IE being false indicates that the terminal does not have preconfigured resources capable of transmitting the data to be transmitted and needs to initiate random access to transmit the data to be transmitted. The value of the first IE being true indicates that the terminal has preconfigured resources capable of transmitting data to be transmitted or that the preconfigured resources of the terminal are available.

As an example, when the RRC message carries the first IE, it indicates that the terminal does not have preconfigured resources capable of transmitting the data to be transmitted and needs to initiate random access to transmit the to-be-transmitted data. When the first IE is not carried in the RRC message, it indicates that the terminal has preconfigured resources capable of transmitting the data to be transmitted. Or, when the first IE is not carried in the RRC message, it indicates that the terminal does not have preconfigured resources capable of transmitting the data to be transmitted and needs to initiate random access to transmit the data to be transmitted. When the first IE is carried in the RRC message, it indicates that the terminal has preconfigured resources capable of transmitting data to be transmitted.

As an example, the first IE is used to implicitly instruct the terminal to transmit data to be transmitted by initiating random access. For example, if the first IE indicates that the terminal does not have preconfigured resources capable of transmitting the data to be transmitted, then the terminal may determine that the network device instructs the terminal to transmit the data to be transmitted by initiating random access after receiving the first IE.

For example, the first IE may indicate that the terminal does not have preconfigured resources capable of transmitting data to be transmitted in the following manner: For example, the terminal has one or more sets of preconfigured resources, and at least one bit associated with each set of preconfigured resources is the first An indicator, or the set or sets of preconfigured resources are associated with the same first indicator. The first indicator is used to indicate that the preconfigured resource is unavailable. Or, the first IE does not carry any information of preconfigured resources, then the terminal can determine that it does not have preconfigured resources capable of transmitting the data to be transmitted after receiving the first IE.

In yet another aspect, the first IE includes a first indication and a second indication. The first indication is used to indicate that the terminal does not have preconfigured resources capable of transmitting the data to be transmitted. The second indication is used to instruct initiating random access to transmit data to be transmitted. For example, the first indication may be true or "0". The second indication may be "00". Alternatively, the second indication may be another indication used to indicate that the data to be transmitted is transmitted by initiating random access, which is not limited in this embodiment of the present application.

For another example, the first IE may be multiple bits based on the above design. For example, the first IE includes a first bit portion and a second bit portion. The first bit part is used to instruct the terminal to determine to initiate random access to transmit data to be transmitted. The second bit part of the plurality of bits is used to indicate that the type of random access is 4-step RA or 2-step RA. For example, the first bit portion may be "00" or "01" as shown in Table 2 above. Or the first bit part can be as shown in Table 6:

Table 6

In conjunction with Table 6, if the first information is in the form of Table 6, the terminal can determine, according to the first information, that the use of the message 3 in the random access process for data transmission and the use of the message A in the random access process for data transmission are available ( 1), and the use of preconfigured resources to transmit data to be transmitted or the use of dynamic resource scheduling for data transmission is not available, that is, the terminal can determine that the network device instructs the terminal to use message 3 in the random access process to transmit data and use random access. The message A in the process performs data transmission.

As a possible example, the first IE may only include a first bit part, where the first bit part is used to determine that the terminal uses the message 3 in the random access process for data transmission, and the random access type is 4-step random access. For example, as shown in Table 7:

Table 7

With reference to Table 7, when the first IE indicates that the terminal performs data transmission by initiating random access, the first bit part included in the first IE is "00". In this way, the terminal can determine to initiate random access to transmit data to be transmitted, and the random access type is 4-step random access.

For example, take the first IE including the first bit part and the second bit part as an example, as shown in Table 8:

Table 8

第一比特部分first bit part	第二比特部分 second bit part
11	0000

With reference to Table 8, the first bit part in Table 8 is "1", indicating that the terminal does not have preconfigured resources capable of transmitting data to be transmitted and needs to initiate random access to transmit data to be transmitted. The second bit part is "00", indicating that the random access type is four-step random access, then the terminal can determine the method of initiating random access to transmit the data to be transmitted through Table 8, and determine the type of random access initiated. It is a four-step random access.

As a possible implementation manner, the first information includes a first IE and a second IE. The first IE is used to indicate that the data to be transmitted is transmitted by initiating random access. The second IE is used to indicate the random access type of the random access procedure initiated by the terminal. The second IE includes at least one bit. The first IE includes at least one bit.

As shown in Table 9, Table 9 shows the content of the first information by taking the second IE and the first IE both including one bit as an example:

Table 9

第一IEfirst IE		第二IESecond IE
11	00

Wherein, the first IE in Table 9 is "1", indicating that the terminal does not have preconfigured resources capable of transmitting data to be transmitted and needs to initiate random access to transmit data to be transmitted. The second IE being "0" indicates that the random access type is four-step random access.

Correspondingly, as a possible implementation manner, step 1305 in case 3) can be implemented in the following manner: the terminal sends the data to be transmitted to the network device through the random access resource broadcast by the network device during the random access process.

Or, as a possible implementation manner, the first information is used to indicate the transmission resource, and the transmission resource is not a preconfigured resource. In case 3), step 1305 can be implemented in the following manner: the terminal sends the transmission resource to the The network device sends the data to be transmitted.

For example, taking the second information as the third IE in the above RRC message as an example, if the network device instructs the terminal to use 4-step random access, the third IE may indicate the relevant resources of the preamble in the CFRA, or may indicate the Msg3 Or MsgA sends the specific resources used by the data to be transmitted, these resources may be broadcast by the base station in the broadcast message, or pre-configured by the network device for the terminal. If the network equipment instructs the terminal to use 2-step RA, the third IE indicates the preamble in the CFRA and the relevant resources for sending the preamble, and can also indicate the specific resources used by the MsgA. These resources can be broadcast by the network equipment in the broadcast message. Or pre-configured for network equipment and terminals.

The first IE and the third IE can also be represented by the first bit part and the second bit part. With reference to the description of Example 1-1, the first bit part may be "00" to indicate that the transmission mode is 00-Msg3, or the first bit part may be "01" to indicate MsgA. When 00 represents the use of Msg3, that is, 4-step RA, the second bit part can indicate the relevant resources of the preamble in CFRA, and can also indicate the specific resources used by Msg3. These resources can be broadcast by the base station in the broadcast message. When 01 represents the use of MsgA, that is, 4-step, the second bit part can indicate the preamble in CFRA and the related resources for sending the preamble, or it can indicate the specific resources used by MsgA to send small packet data. These resources can come from the base station in the broadcast message. Broadcast, or pre-configured for network equipment and terminals.

Correspondingly, in case 3), the first information is used to instruct the terminal to transmit the data to be transmitted by initiating a random access procedure, and the second information is used to indicate the resource for sending the random access preamble and the resource for sending the data to be transmitted. Step 1305 may be implemented in the following manner: the terminal sends the random access preamble through the resource for sending the random access preamble indicated by the second information during the random access process. and sending the data to be transmitted to the network device through the resource for sending the data to be transmitted indicated by the second information.

Correspondingly, in case 3), the first information is used to instruct the terminal to transmit the data to be transmitted by initiating a random access procedure, and the second information is used to indicate the resource for sending the data to be transmitted. Step 1305 may be implemented in the following manner: the terminal sends the random access preamble through the random access resource broadcast by the network device during the random access process, and sends the to-be-transmitted data to the network device through the resource for sending the data to be transmitted indicated by the second information. data. The random access resource may be a specific time-frequency resource (for example, a physical random access channel (Physical Random Access Channel, PRACH)) broadcast by the network device in a broadcast message for sending a random access preamble.

In a possible implementation manner, the network device may also implicitly instruct the terminal to transmit the data to be transmitted by initiating a random access procedure. At this time, the network device sends the second information to the terminal without sending the first information. The second information may indicate the relevant resources of the preamble in the CFRA, and may also indicate the specific resources used by msg3/msgA, and these resources may be broadcast by the base station in the broadcast message. In this way, after receiving the second information, the terminal can determine that the network device instructs the terminal to transmit subsequent data to be transmitted by initiating random access.

In Example 3-2, the first information and the second information are carried in the MAC CE. For specific implementation, reference may be made to the description in Example 1-2 above, which will not be repeated here. In Example 3-2, the content of the first information and the second information may refer to the description in the foregoing Example 3-1, and details are not repeated here.

Example 3-3. When the first information and the second information are carried in the DCI: a new DCI format (format) may be defined or the above-mentioned first information and second information may be added to the existing DCI format. The first information and the second information included in the DCI are similar to the above, and are not repeated here.

Step 1306: The network device indicates to the terminal that the transmission of the data to be transmitted has been completed.

In the embodiment shown in FIG. 13 , the network device controls the data to be transmitted by sending the first information and the second information to the terminal using message 3 or message A in the random access process. When the configuration resource is unavailable, the terminal uses the pre-configured resource to transmit the data to be transmitted and the data transmission fails, thereby ensuring the reliability of subsequent data transmission and improving the data transmission quality of the terminal. Alternatively, when the network device does not wish to receive the data to be transmitted on the preconfigured resources of the terminal, it can control the transmission of message 3 or message A of the data to be transmitted to the network device in the random access process by initiating random access.

It should be noted that even if the terminal has preconfigured resources capable of transmitting the data to be transmitted, the network device may use the first information to instruct the terminal to use other transmission modes except the preconfigured resource transmission mode. For example, the network device instructs the terminal to initiate a random access procedure or to adopt a dynamic scheduling method. In addition, the second information is also used to indicate the transmission resource corresponding to the dynamic scheduling manner. Or the second information is used to indicate the transmission resource for the random access process to transmit the data to be transmitted. In this case, for the content of the first information and the content of the second information, reference may be made to the descriptions in the foregoing embodiments, and details are not repeated here.

It is worth noting that, in case 3), no matter whether the terminal adopts the random access process, or adopts the pre-configured resources, or adopts the dynamic scheduling mode to transmit the first small packet of data, the terminal can follow the instructions of the network device to adopt random access. way to transmit the data to be transmitted. This embodiment of the present application does not limit this.

It is worth noting that, when the network device only indicates the first information to the terminal (ie, in the case of the transmission mode), the terminal may also determine the transmission resource by using the following steps 1401 to 1403 . Of course, in the case where the network device indicates the transmission resource to the terminal, the terminal may also determine the transmission resource through the following steps 1401 to 1403 .

As shown in FIG. 14, FIG. 14 shows a data transmission method provided by an embodiment of the present application, and the method includes:

Step 1401: The terminal sends the first small packet of data to the network device. Correspondingly, the network device receives the first packet of data from the terminal. The terminal determines that it has data to be transmitted. The terminal is in a disconnected state (eg, RRC-disconnected state).

Determining that the terminal has data to be transmitted can be implemented in the following manner: one case is that the terminal cuts the data packet, including: the first small packet of data and the data to be transmitted. Another situation is: the buffer of the terminal is not empty.

Optionally, step 1401 further includes: the terminal sends the first message to the network device. The first message is used to indicate that the terminal has subsequent data to be transmitted.

For the description of step 1401 and the data to be transmitted, reference may be made to the description at step 601 above, and details are not repeated here. In step 1401, the terminal sending the first small packet of data to the network device may be replaced by the terminal sending third data to the network device, and the third data may be small packet data, non-small packet data, large packet data, etc.

Step 1402: The terminal determines a target preconfigured resource from one or more sets of preconfigured resources of the terminal according to the resource corresponding to the first packet data. The target preconfigured resource is used to transmit data to be transmitted when the terminal is in a disconnected state (eg, RRC-disconnected state).

Wherein, the terminal has one or more sets of preconfigured resources. The target preconfigured resource is a preconfigured resource in the one or more sets of preconfigured resources. The one or more sets of preconfigured resources may be individually configured for the terminal, or the one or more sets of preconfigured resources may be shared by the terminal and other terminals, which is not limited in this embodiment of the present application.

The one or more sets of preconfigured resources are configured for the terminal by the network device when the terminal is in the RRC_CONNECTED state (also referred to as the connected state) or when the terminal is about to enter the RRC-disconnected state from the RRC_CONNECTED state. The one or more sets of preconfigured resources can not only be used to send data to the network device when the terminal is in the RRC_CONNECTED state, but also can be used to send data when the terminal is in the RRC-disconnected state. Alternatively, the one or more sets of preconfigured resources are only used for sending data when the terminal is in the RRC-disconnected state, which is not limited in this embodiment of the present application.

For the specific implementation of step 1402, reference may be made to the descriptions in the following Example 4-1 to Example 4-4, which will not be repeated here.

Step 1403: The terminal sends the data to be transmitted to the network device on the target preconfigured resource. Correspondingly, the network device receives the data to be transmitted from the terminal on the target preconfigured resource.

Optionally, if the terminal still has other data to be sent after sending the data to be transmitted, the terminal may further indicate to the network device that it still has data transmission requirements.

An embodiment of the present application provides a data transmission method, in which a terminal sends a first small packet of data to a network device through a first resource in a radio resource control RRC-disconnected state, wherein the terminal has data to be transmitted subsequently. Afterwards, the terminal may determine the target preconfigured resource from one or more sets of preconfigured resources according to the resource corresponding to the first packet data. The network device can more easily determine the target CG resource to which the terminal sends the data to be transmitted subsequently according to the resource corresponding to the first small packet data, thereby reducing the blind detection of the network device.

Example 4-1. The resource corresponding to the first small packet of data is the random access preamble used in the random access process for sending the first small packet of data or the resource for sending the random access preamble.

The resources for sending the random access preamble may be PRACH occasions (occasions).

Then, in Example 4-1, step 1402 in this embodiment of the present application can be implemented by any one of the following options1 to option2:

Among them, option1 includes the following

steps

1 and 2.

Step 1. The terminal determines the association relationship. The association relationship includes at least: the association relationship between the random access preamble and the first preconfigured resource. Or, the association relationship includes at least an association relationship between the resource for sending the random access preamble and the first preconfigured resource.

For example, as shown in Table 10-1 and Table 10-2:

Table 10-1

随机接入前导的标识Random access preamble identifier	预配置资源Preconfigured resources
随机接入前导1 random access preamble 1	预配置资源1 Preconfigured Resource 1
随机接入前导2 random access preamble 2	预配置资源2 Preconfigured Resource 2
随机接入前导3random access preamble 3	预配置资源4 Preconfigured Resources 4
随机接入前导4 random access preamble 4	预配置资源3Preconfigured Resource 3

For example, if the random access preamble used by the terminal in the process of sending the first small packet of data is random access preamble 1, the terminal may determine to use the preconfigured resource 1 as the target preconfigured resource. If the random access preamble used by the terminal in the process of sending the first small packet of data is the random access preamble 3, the terminal may determine to use the preconfigured resource 4 as the target preconfigured resource.

Table 10-2

PRACH的标识PRACH logo	预配置资源Preconfigured resources

PRACH 1PRACH 1	预配置资源1 Preconfigured Resource 1
PRACH 2 PRACH 2	预配置资源2 Preconfigured Resource 2
PRACH 3PRACH 3	预配置资源4 Preconfigured Resources 4
PRACH 4 PRACH 4	预配置资源3Preconfigured Resource 3

For example, if the resource used by the terminal for sending the random access preamble in the process of sending the first small packet of data is PRACH 2, the terminal may determine to use the preconfigured resource 2 as the target preconfigured resource.

It is worth noting that the above-mentioned Table 10-1 and Table 10-2 are examples of the association between the resources for implementing the pre-configured resources and the random access preamble, or the resources for implementing the random access preamble sent by the pre-configured resources and the pre-configured resources. .

As a possible implementation, the determination of the association relationship by the terminal may be implemented in the following manner: the association relationship is pre-stored in the terminal. Or as another possible implementation, the determination of the association relationship by the terminal may be implemented in the following manner: the network device sends a first message (for example, an RRC message) to the terminal, and the terminal receives the first message from the network device. The association relationship is included in the RRC message.

For example, the first message is an RRC reconfiguration message, an RRC release message, or a broadcast message in the RRC message, and the network device indicates to the terminal a random access preamble associated with the preconfigured resource at the same time or after configuring the preconfigured resource for the terminal. resource, or indicates the random access preamble associated with the preconfigured resource.

For example, when the network device configures the CG resource for the terminal, the network device configures the preamble associated with the CG resource, or the network device configures the resource associated with the CG resource for sending the preamble, such as PRACH occasions.

Take the association between CG resources and preamble as an example, as shown in Table 11:

Table 11

Wherein, the preambleIndex in Table 11 is the random access preamble index, which is used to determine the preamble.

Alternatively, considering that a CG resource may be associated with multiple preambles or PRACH occasions, continue to take the association between CG resources and preambles as an example, as shown in Table 12:

Table 12

The PreambleIndexList SEQUENCE in Table 12 means one or more preambles.

For example, if the preconfigured resources configured by the network device for the terminal include preconfigured resource 1, preconfigured resource 2 and preconfigured resource 3, the network device can use the first message to indicate to the terminal preconfigured resource 1 and random access preamble 1 and 3. Random access preamble 2 is associated, preconfigured resource 2 is indicated to be associated with random access preamble 2, and preconfigured resource 3 is indicated to be associated with random access preamble 3.

For example, as shown in Figure 15a, one or more sets of preconfigured resources configured by the network device for the terminal include preconfigured resource 1, preconfigured resource 2, preconfigured resource 3, and preconfigured resource 4, then the network device can use The first message indicates to the terminal that preconfigured resource 1 is associated with resource a, preconfigured resource 3 is associated with resource a, preconfigured resource 2 is associated with resource b, and indicates that preconfigured resource 4 is associated with resource c.

For another example, the first message is an RRC configuration message or a broadcast message in the RRC message, wherein the RRC configuration message is used by the network device to configure the CFRA-related random access configuration for the terminal, and the broadcast message is used by the network device to broadcast the CBRA-related random access configuration to the terminal. random access configuration. The network device indicates to the terminal the preconfigured resources associated with the random access preamble or the preconfigured resources associated with the resources of the random access preamble while or after sending the random access configuration related to the CFRA or CBRA. For example, the resources of the random access preamble may be PRACH occasions.

Step 2: The terminal determines the first preconfigured resource in one or more sets of preconfigured resources as the target preconfigured resource according to the random access preamble and the association between the random access preamble and the first preconfigured resource. Alternatively, the terminal determines the first preconfigured resource in one or more sets of preconfigured resources as Target preconfigured resources.

Combining the above example, if the terminal uses the four-step random access to send the first small packet of data to the network device, and the random access preamble used is random access preamble 1, the terminal can determine preconfigured resource 1 as the target preconfigured resource. If the random access preamble is random access preamble 2, the terminal may select one preconfigured resource from the preconfigured resource 1 and the preconfigured resource 2 as the target preconfigured resource.

Combining the above example, as shown in Figure 15a, if the terminal uses resource a to send random access preamble 1, the terminal can select a preconfigured resource from preconfigured resource 1 and preconfigured resource 3 as the target preconfigured resource.

Option 2. The terminal determines the association relationship according to the index of the random access preamble and the number of one or more sets of preconfigured resources.

For example, taking the preconfigured resources as CG resources as an example, when the terminal uses the random access process to send smalldata1, if the index of the preamble carried by the terminal in Msg1/MsgA is m, and the terminal is configured with N CG resources, then the index The preamble of m corresponds to the m%Nth CG resource, in other words, the terminal determines that the preamble with the index m is associated with the m%Nth CG resource. Taking into account to avoid excessive resource overhead, the number of CG resources configured by the network for the terminal is usually less than the number of currently available preambles. Therefore, the index of the preamble can be used to modulo the number of CG resources N to determine the target CG resource. . The N CG resources configured on the terminal are the total number of CG resources configured on the terminal. For example, if the terminal has obtained 2 sets of CG resource configurations, each set has a total of 10 CG resources, so N is 20.

Alternatively, in order to avoid constant conflict between two terminals, randomization may be performed on CG resource selection. For example, the m th preamble corresponds to the (m+I-RNTI)%N CG resources among the N CG resources. The I-RNTI is a representation method of the terminal identifier in the RRC_INACTIVE state.

Alternatively, randomization of the time dimension can be introduced by further randomizing the CG resources used in subsequent transmissions. For example, the m th preamble corresponds to (m+I-RNTI+n_slot)%N CG resources in the N CG resources. Or the m th preamble corresponds to (m+I-RNTI+n_slot+n_frame*N_slot)%N CG resources in the N CG resources. Where n_slot is an index of a slot, n_frame is an index of a frame, and N_slot is the number of slots in a frame.

Example 4-2: The resource corresponding to the first small packet of data is the time-frequency resource used for sending the first small packet of data in the random access process.

In Example 4-2, step 1402 can be implemented by:

Implementation 1. The terminal determines a preconfigured resource that overlaps with the time-frequency resource used for sending the first small packet data among one or more sets of preconfigured resources as the target preconfigured resource.

For example, the terminal sends the first small packet of data through Msg3/MsgA, and the time-frequency resource of the terminal sending Msg3/MsgA coincides with one of the CG resources 1 in one or more sets of CG resources configured by the terminal, then the terminal CG resource 1 is determined as the target CG resource.

Assuming that CG resource 1 includes 10 CG resources, in which the time-frequency resource of Msg3/MsgA coincides with the first CG resource of CG resource 1, the terminal may determine CG resource 1 as the target CG resource.

For Msg3, the network device can use Time Domain Resource Allocation (TDRA) and Frequency Domain Resource Allocation (FDRA) in RAR to indicate a time-frequency resource that is associated with one or more sets of A certain CG resource in the set of CG resources overlaps.

For MsgA, the network device can configure the PUSCH resource in the MsgA to be the same time-frequency position as a certain CG resource during resource configuration. Based on the time-frequency resource of the MsgA, the terminal can determine the target preconfigured resource after sending the MsgA. Specifically, Which set of CG resources.

Implementation 2. The terminal determines a preconfigured resource having the same index as the time-frequency resource for sending the first small packet of data among one or more sets of preconfigured resources as the target preconfigured resource.

For Msg3, the network device may use TDRA and FDRA in the RAR to indicate an index (index) of a time-frequency resource, and the index of the time-frequency resource is the same as the index of the target CG resource.

For MsgA, the network device can configure the PUSCH resource in the MsgA to be the same as the index of a CG resource during resource configuration. Then, based on the time-frequency resources of the MsgA, the terminal can determine which target preconfigured resource is after sending the MsgA. Set of CG resources. The PUSCH is a time-frequency resource for sending the first small packet of data by using the MsgA.

For example, if the terminal uses the message A in the random access process to send the first small packet of data, and the first small packet of data is carried on the PUSCH in the message A. Then, for MsgA, the network device may configure the PUSCH resource in the MsgA to have the same time-frequency position as a certain CG resource in one or more sets of CG resources during resource configuration.

Based on the implementation manners of Example 4-1 to Example 4-2 above, further, if the network device will send feedback (possibly physical layer feedback, such as L1ACK/NACK or non-L1ACK/NACK) to the terminal, and the terminal is not in the RRC_INACTIVE state Support multiple Hybrid Automatic Repeat reQuest (HARQ) processes, the terminal can only clear the data in the current sending buffer after receiving the ACK feedback from the base station, and then perform subsequent data packetization. Therefore, when the terminal uses CG resource 1 for subsequent transmission, it needs to select the CG resource 1 after the time point T1 in the figure, where T1 is the gap time after the terminal receives the feedback from the base station, and the gap here is for the terminal to do the corresponding processing, Such as the time for decoding feedback information, grouping and so on. Specifically, the CG resource in the earliest available CG resource 1 after T1 may be specified.

As a possible embodiment, the time domain position of the target pre-configured resource is located after a first time point, and the first time point is determined by the time when the terminal receives the feedback information from the network device and the offset value , the feedback information is used to indicate that the network device successfully receives the first small packet of data, and the time is before the first time point.

As shown in Figure 15b, the terminal sends a random access preamble to the network device on resource a, and the terminal receives feedback information sent by the network device at time 1, and the feedback information is used to indicate that the first small packet of data from the terminal is successfully received. . Then the terminal can determine the first time point T1 according to time 1 and the gap shown in FIG. 15b. As shown in FIG. 15b, the CG resource 1 located at the time domain position 4 is located after T1, and the CG resource 1 located at the time domain position 3 is located before T1 or is parallel with T1 in time domain time, that is, for the terminal, the CG resource 1 is located in the time domain. Resource 1 may be invalid at time domain position 3, then the terminal can only select CG resource 1 at time domain position 4 as the target CG resource.

However, in order to ensure that the data to be transmitted is sent out as soon as possible, the terminal may select the CG resource 1 closest to the first time point as the target CG resource from multiple CG resources 1 that appear at different time domain locations after the first time point. For example, the terminal selects CG resource 1 located at time domain position 4 as the target CG resource.

Example 4-3: The resource corresponding to the first small packet of data is the first CG resource for transmitting the first small packet of data, and the first CG resource is a periodic resource. The target preconfigured resource and the first CG resource are the same set of CG resources.

In Example 4-3, as a possible implementation manner, the above step 1402 may be implemented in the following manner: The configuration resource is determined to be the target preconfigured resource, and the period is the period of the first preconfigured resource.

For example, as shown in Figure 16a, if the terminal has 4 sets of CG resources (CG resource 1 to CG resource 4), each set of CG resources is a periodic resource, for example, in Figure 16a, CG resource 1 and CG resource 2 The cycle of CG resource 1 is P. In Figure 16a, the number of repetitions of each set of CG resources is 3 as an example. Taking CG resource 1 as an example, the first CG resource 1 appears at position 1 in the time domain. The first CG resource 1 appears at the time domain position 2, and after the period P has passed, the third CG resource 1 appears at the time domain position 3.

Taking the first CG resource as CG resource 1 at time domain location 1 as an example, if the terminal uses CG resource 1 at time domain location 1 to send the first small packet of data to the network device, the terminal can determine that the target CG resource is at time domain location 1. CG resource 1 at domain location 2 or CG resource 1 at time domain location 3.

As a possible implementation manner, the terminal may determine that the target CG resource is the earliest available first CG resource after at least one cycle after the first preconfigured resource for transmitting the first small packet data. For example, if time-domain location 2 is earlier than time-domain location 3, the terminal may determine that the target CG resource is CG resource 1 at time-domain location 2.

As a possible embodiment, since the terminal can only know the data in the current sending buffer after receiving the ACK feedback for the first small packet of data from the network device, and then perform subsequent data packetization, based on this, the present application implements In the example, the time domain position of the target preconfigured resource is located after the first time point, and the first time point is determined by the time and offset value when the terminal receives the feedback information from the network device, and the feedback information is used as It indicates that the network device successfully receives the first small packet of data, and the time is before the first time point.

For example, as shown in Figure 16b, the terminal sends the first small packet of data to the network device on the CG resource 1 at time domain position 1, and at time 1 the terminal receives ACK feedback from the network device, and the ACK feedback is used to indicate that the network The device receives the first packet of data correctly. Then, the terminal may use the CG resource 1 located after the first moment (ie, T1 in FIG. 16b ) as the target CG resource. Wherein, the first time is located after time 1, and the first time is obtained from time 1 and the time offset value. The time offset value can be processed for the terminal, such as the time for decoding feedback information, packet grouping, etc. Or the time offset value can be determined autonomously by the terminal. Specifically, it may be specified that the earliest CG resource 1 after T1 is used. For example, as shown in FIG. 16b , the terminal determines that the target CG resource for subsequent transmission of data to be transmitted is CG resource 1 located at position 4 in the time domain.

In order to facilitate the network device to receive the data to be transmitted from the terminal on the CG resource 1 located at the time domain position 1 after receiving the first small packet of data at the time domain position 1, the terminal sends the data to the network device. When the first small packet of data is used, the network device may also be instructed that the subsequent terminal will send the data to be transmitted on the CG resource 1 at the time domain position 4. Or, after receiving the first small packet of data, the network device sends the first indication to the terminal. The first indication is used to instruct the terminal to send the data to be transmitted by the terminal at the CG resource 1 of the time domain position 4. The CG resource 1 located at the time domain position 4 and the CG resource located at the time domain position 1 belong to the same set of CG resources, but the time domain positions are different. In this way, it is convenient for the network device to specify the location of the CG resource that subsequently receives the data to be transmitted.

Example 4-4: The resource corresponding to the first small packet of data is the first preconfigured resource for transmitting the first small packet of data. The target preconfigured resource and the first preconfigured resource are different sets of preconfigured resources.

In Example 4-4, the first preconfigured resource may be a periodic resource or an aperiodic resource.

In Example 4-4, as a possible implementation manner, the above step 1402 may be implemented in the following manner: the terminal determines the second preconfigured resource in one or more sets of preconfigured resources as the target preconfigured resource, The second preconfigured resource and the first preconfigured resource are different sets of preconfigured resources.

For example, as shown in Figure 16a, if the terminal has 4 sets of CG resources (CG resource 1 to CG resource 4), each set of CG resources is a periodic resource, for example, in Figure 16a, CG resource 1 and CG resource 2 The cycle of CG resource 1 is P. In Figure 16a, the number of repetitions of each set of CG resources is 3 as an example. Taking CG resource 1 as an example, the first CG resource 1 appears at position 1 in the time domain. The first CG resource 1 appears at the time domain position 2, and after the period P has passed, the third CG resource 1 appears at the time domain position 3. The terminal uses CG resource 1 located at time domain position 1 to transmit the first small packet of data, then the terminal can use the CG in any set of CG resource 2 to CG resource 4 located after time domain position 1 when subsequently transmitting data to be transmitted resource. Specifically, the order in which the terminal uses CG resource 2 to CG resource 4 may be based on a hopping pattern of a resource. The hopping pattern may be configured for the terminal by the network device, or the hopping pattern may be pre-stored in the terminal, or the hopping pattern may be predefined by a protocol, or the hopping pattern may be determined through negotiation between the terminal and the network device.

Referring to Example 4-1, in Example 4-4, the terminal may determine the information of the target CG resource according to the formula (m+I-RNTI+n_slot)%N, or (m+I-RNTI+n_slot+n_frame*N_slot)%N .

In a possible embodiment, in Example 4-4, the time domain position of the target preconfigured resource is located after the first time point, and the first time point is the time when the terminal receives the feedback information from the network device and The offset value is determined, and the feedback information is used to indicate that the network device successfully receives the first small packet of data, and the time is before the first time point.

For example, if the terminal uses CG resource 1 located at time domain position 1 as shown in Figure 16b to send the first small packet of data, the terminal can subsequently select CG resource 2 or CG resource 3 or CG resource 4 located after T1 to send the to-be-transmitted data data. On the other hand, the CG resource 2 located at the time domain position 2 is located before T1 or is parallel with T1 in the time domain time, that is, for the terminal, the CG resource 2 at the time domain position 2 may be invalid. The terminal can then select a CG resource from CG resource 3 and CG resource 4 at time domain position 3, CG resource 2 at time domain position 4, and CG resource 3 and CG resource 4 at time domain position 5.

In order to send the data to be transmitted as soon as possible, as shown in FIG. 16b, the terminal may send the data to be transmitted on the CG resource 3 or CG resource 4 located at the time domain position 3 after T1 and closest to T1.

In this embodiment of the present application, the embodiment shown in FIG. 14 and the embodiment shown in FIG. 13 can be used in combination. For example, if the network device does not indicate the transmission resource to the terminal, but only indicates the transmission mode, then if the terminal transmits The transmission mode of the first small packet data is random access mode, then if the network device instructs the subsequent use of preconfigured resources to transmit the data to be transmitted, the terminal can determine the target preconfigured resources by using the methods of Example 4-1 to Example 4-2. For another example, if the transmission mode for the terminal to transmit the first small packet data is to use the preconfigured resource mode to transmit, then if the network device indicates that the preconfigured resource mode is still used to transmit the data to be transmitted, the terminal can use Example 4-3 to Example 4- 4 ways to determine target preconfigured resources.

The foregoing mainly introduces the solutions of the embodiments of the present application from the perspective of interaction between various network elements. It can be understood that, in order to implement the above functions, each network element, such as a terminal, a network device, etc., includes corresponding structures and/or software modules for performing each function. Those skilled in the art should easily realize that the present application can be implemented in hardware or a combination of hardware and computer software with the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

In this embodiment of the present application, functional units may be divided according to the above-mentioned method for example terminals and network devices. For example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units. It should be noted that the division of units in the embodiments of the present application is illustrative, and is only a logical function division, and other division methods may be used in actual implementation.

The methods of the embodiments of the present application have been described above with reference to FIG. 6 to FIG. 16b , and the following describes the communication apparatuses provided by the embodiments of the present application for executing the above methods. Those skilled in the art can understand that the methods and apparatuses may be combined and referenced with each other, and the communication apparatus provided in the embodiments of the present application may perform the steps performed by the terminal and the network device in the above analysis method.

In the case of using an integrated unit, FIG. 17 shows the communication device involved in the above-mentioned embodiment, and the communication device may include: a communication module 1713 and a processing module 1712 .

In an optional implementation manner, the communication device may further include a storage module 1711 for storing program codes and data of the communication device.

In one aspect, the communication device is a terminal, or a chip applied in the terminal. In this case, the communication module 1713 is used to support the communication apparatus to communicate with external network elements (eg, network equipment). For example, the communication module 1713 is configured to perform the signal transceiving operation of the terminal in the foregoing method embodiments. The processing module 1712 is configured to perform signal processing operations of the terminal in the foregoing method embodiments.

In an example, the communication module 1713 is configured to perform the sending action performed by the terminal in steps 601 and 603 of FIG. 6 in the foregoing embodiment. The communication module 1713 is configured to perform the receiving action performed by the terminal in step 602 of FIG. 6 in the foregoing embodiment.

In a possible embodiment, the processing module 1712 is configured to execute the processing action performed by the terminal in step 805 of FIG. 8 in the foregoing embodiment. The communication module 1713 is configured to perform the receiving action performed by the terminal in step 807 of FIG. 8 in the above embodiment.

In another example, the communication module 1713 is configured to perform the sending action performed by the terminal in steps 1401 and 1403 of FIG. 14 in the above embodiment. The processing module 1712 is configured to execute the processing action performed by the terminal in step 1402 of FIG. 14 in the above embodiment.

On the other hand, the communication device is a network device, or a chip applied in the network device. In this case, the communication module 1713 is used to support the communication device to communicate with external network elements (eg, terminals). For example, the communication module 1713 is configured to perform the signal transceiving operation of the network device in the foregoing method embodiments. The processing module 1712 is configured to perform the signal processing operations of the network device in the foregoing method embodiments.

In one example, the communication module 1713 is configured to perform the receiving action performed by the network device in steps 601 and 603 of FIG. 6 in the foregoing embodiment. The communication module 1713 is configured to perform the sending action performed by the network device in step 602 of FIG. 6 in the above embodiment.

In another example, the communication module 1713 is configured to perform the receiving action performed by the network device in steps 1401 and 1403 of FIG. 14 in the above embodiment.

The processing module 1712 may be a processor or a controller, such as a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array, or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It may implement or execute the various exemplary logical blocks, modules and circuits described in connection with this disclosure. A processor may also be a combination that performs computing functions, such as a combination comprising one or more microprocessors, a combination of a digital signal processor and a microprocessor, and the like. The communication module may be a transceiver, a transceiver circuit, or a communication interface. The storage module may be a memory.

When the processing module 1712 is the processor 1821 or the processor 1825, the communication module 1713 is the transceiver 1823, and the storage module 1711 is the memory 1822, the communication device involved in this application may be the communication device shown in FIG. 18 .

FIG. 18 shows a schematic diagram of a hardware structure of a communication device provided by an embodiment of the present application. For the hardware structure of the terminal and the network device in the embodiments of the present application, reference may be made to the structure shown in FIG. 18 . The communication device includes a processor 1821, a communication line 1824, and at least one transceiver (in FIG. 18, the transceiver 1823 is used as an example for illustration).

The processor 1821 may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more processors for controlling the execution of the programs of the present application. integrated circuit.

Communication line 1824 may include a path to communicate information between the components described above.

Transceiver 1823, using any transceiver-like device for communicating with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc. .

Optionally, the communication device may further include a memory 1822 .

Memory 1822 may be read-only memory (ROM) or other type of static storage device that can store static information and instructions, random access memory (RAM) or other type of static storage device that can store information and instructions It can also be an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disk storage, CD-ROM storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or capable of carrying or storing desired program code in the form of instructions or data structures and capable of being executed by a computer Access any other medium without limitation. The memory may exist independently and be connected to the processor through communication line 1824. The memory 1822 may also be integrated with the processor 1821.

The memory 1822 is used for storing computer-executed instructions for executing the solution of the present application, and the execution is controlled by the processor 1821 . The processor 1821 is configured to execute the computer-executed instructions stored in the memory 1822, so as to implement the method for indicating data transmission provided by the following embodiments of the present application.

Optionally, the computer-executed instructions in the embodiment of the present application may also be referred to as application code, which is not specifically limited in the embodiment of the present application.

In a specific implementation, as an embodiment, the processor 1821 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 18 .

In a specific implementation, as an embodiment, the communication device may include multiple processors, such as the processor 1821 and the processor 1825 in FIG. 18 . Each of these processors can be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (eg, computer program instructions).

In an example, the transceiver 1823 is configured to perform the sending action performed by the terminal in step 601 and step 603 of FIG. 6 in the above embodiment. The transceiver 1823 is configured to perform the receiving action performed by the terminal in step 602 of FIG. 6 in the above embodiment.

In a possible embodiment, the processor 1821 and the processor 1825 are configured to perform the processing action performed by the terminal in step 805 of FIG. 8 in the above-mentioned embodiment. The transceiver 1823 is configured to perform the receiving action performed by the terminal in step 807 of FIG. 8 in the above embodiment.

In another example, the transceiver 1823 is configured to perform the sending action performed by the terminal in steps 1401 and 1403 of FIG. 14 in the foregoing embodiment. The processor 1821 and the processor 1825 are configured to perform the processing actions performed by the terminal in step 1402 of FIG. 14 in the above embodiment.

On the other hand, the communication device is a network device, or a chip applied in the network device. In this case, the transceiver 1823 is used to support the communication device to communicate with external network elements (eg, terminals). For example, the transceiver 1823 is configured to perform the signal transceiving operation of the network device in the foregoing method embodiment. The processor 1821 and the processor 1825 are configured to perform the signal processing operations of the network device in the foregoing method embodiments.

In an example, the transceiver 1823 is configured to perform the receiving actions performed by the network device in steps 601 and 603 of FIG. 6 in the above embodiment. The transceiver 1823 is configured to perform the sending action performed by the network device in step 602 of FIG. 6 in the above embodiment.

In another example, the transceiver 1823 is configured to perform the receiving actions performed by the network device in steps 1401 and 1403 of FIG. 14 in the above embodiment.

FIG. 19 is a schematic structural diagram of a chip 190 provided by an embodiment of the present application. The chip 190 includes one or more (including two) processors 1910 and a communication interface 1930 .

Optionally, the chip 190 further includes a memory 1940, and the memory 1940 may include a read-only memory and a random access memory, and provides operation instructions and data to the processor 1910. A portion of memory 1940 may also include non-volatile random access memory (NVRAM).

In some embodiments, the memory 1940 stores the following elements, execution modules or data structures, or a subset thereof, or an extended set thereof.

In this embodiment of the present application, the corresponding operation is performed by calling the operation instruction stored in the memory 1940 (the operation instruction may be stored in the operating system).

A possible implementation manner is that the structures of terminals and network devices are similar, and different devices may use different chips to realize their respective functions.

The processor 1910 controls the processing operation of any one of the terminal and the network device, and the processor 1910 may also be referred to as a central processing unit (central processing unit, CPU).

Memory 1940, which may include read-only memory and random access memory, provides instructions and data to processor 1910. A portion of memory 1940 may also include NVRAM. For example, the memory 1940, the communication interface 1930, and the memory 1940 are coupled together through the bus system 1920, wherein the bus system 1920 may include a power bus, a control bus, a status signal bus, and the like in addition to a data bus. However, for clarity of illustration, the various buses are labeled as bus system 1920 in FIG. 19 .

The methods disclosed in the above embodiments of the present application may be applied to the processor 1910 or implemented by the processor 1910 . The processor 1910 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above-mentioned method may be completed by an integrated logic circuit of hardware in the processor 1910 or an instruction in the form of software. The above-mentioned processor 1910 may be a general-purpose processor, a digital signal processing (DSP), an ASIC, an off-the-shelf programmable gate array (field-programmable gate array, FPGA) or other programmable logic devices, discrete gates or transistors Logic devices, discrete hardware components. The methods, steps, and logic block diagrams disclosed in the embodiments of this application can be implemented or executed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the methods disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software module may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory 1940, and the processor 1910 reads the information in the memory 1940, and completes the steps of the above method in combination with its hardware.

In a possible implementation manner, the communication interface 1930 is used to perform the steps of receiving and sending by the terminal in the embodiment shown in FIG. 6 . The processor 1910 is configured to perform processing steps of the network device in the embodiment shown in FIG. 6 .

In a possible implementation manner, the communication interface 1930 is used to perform the steps of receiving and sending by the terminal in the embodiment shown in FIG. 14 . The processor 1910 is configured to perform processing steps of the network device in the embodiment shown in FIG. 14 .

The above communication module may be a communication interface of the device for receiving signals from other devices. For example, when the device is implemented in the form of a chip, the communication module is a communication interface used by the chip to receive or transmit signals from other chips or devices.

In one aspect, a computer-readable storage medium is provided, where instructions are stored in the computer-readable storage medium, and when the instructions are executed, the functions performed by the terminal as shown in FIG. 6 to FIG. 14 are implemented.

In one aspect, a computer program product including instructions is provided. The computer program product includes instructions, and when the instructions are executed, the functions performed by the network device as shown in FIG. 6 to FIG. 14 are implemented.

In one aspect, a chip is provided, the chip is applied in a terminal, the chip includes at least one processor and a communication interface, the communication interface is coupled with the at least one processor, and the processor is used for running instructions to realize the functions shown in FIGS. 6 to 14 . The function performed by the terminal.

In one aspect, a chip is provided, the chip is applied in a terminal, the chip includes at least one processor and a communication interface, the communication interface is coupled with the at least one processor, and the processor is used for running instructions to realize the functions shown in FIGS. 6 to 14 . A function performed by a network device.

An embodiment of the present application provides a communication system, where the communication system includes: a terminal and a network device. Wherein, the terminal is used to perform the functions performed by the terminal as shown in FIGS. 6 to 13 , and the network device is used to perform the functions performed by the network equipment as shown in FIGS. 6 to 13 .

An embodiment of the present application provides a communication system, where the communication system includes: a terminal and a network device. Wherein, the terminal is used to perform the function performed by the terminal as shown in Fig. 14, and the network device is used to perform the function performed by the network device as shown in Fig. 14.

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented in software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are executed in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, network equipment, user equipment, or other programmable apparatus. The computer program or instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer program or instructions may be downloaded from a website, computer, A server or data center transmits by wire or wireless to another website site, computer, server or data center. The computer-readable storage medium may be any available media that can be accessed by a computer or a data storage device such as a server, data center, etc. that integrates one or more available media. The usable medium can be a magnetic medium, such as a floppy disk, a hard disk, and a magnetic tape; it can also be an optical medium, such as a digital video disc (DVD); it can also be a semiconductor medium, such as a solid state drive (solid state drive). , SSD).

Although the application is described herein in conjunction with various embodiments, in practicing the claimed application, those skilled in the art can understand and implement the disclosure by reviewing the drawings, the disclosure, and the appended claims Other variations of the embodiment. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that these measures cannot be combined to advantage.

Although the application has been described in conjunction with specific features and embodiments thereof, it will be apparent that various modifications and combinations can be made therein without departing from the spirit and scope of the application. Accordingly, this specification and drawings are merely exemplary illustrations of the application as defined by the appended claims, and are deemed to cover any and all modifications, variations, combinations or equivalents within the scope of this application. Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

A method for indicating data transmission, characterized in that, when applied to a terminal, the method comprises:

sending a first small packet of data and a first message to the network device, where the first message is used to indicate that the terminal has subsequent data to be transmitted;

Receive first information and/or second information from a network device, where the first information is used to indicate the transmission mode of the data to be transmitted, and the second information is used to indicate the transmission of the data to be transmitted resource;

The data to be transmitted is sent to the network device according to the transmission mode and/or the transmission resource.
The method according to claim 1, wherein the data to be transmitted is second small packet data, and the first small packet data and the second small packet data are data divided by the first data; or,

The data to be transmitted is second data, and the second data and the first packet data are data divided from the first data; or,

The first small packet data and the to-be-transmitted data come from different data packets.
The method according to claim 1 or 2, wherein the receiving the first information and/or the second information from a network device comprises: receiving the first information and the first information from the network device Two pieces of information; the first information is used to indicate that the to-be-transmitted data is transmitted by dynamic scheduling, and the second information is used to indicate the transmission resources allocated for the dynamic scheduling; or,

The receiving the first information and/or the second information from the network device includes: receiving the first information from the network device, where the first information is used to indicate the transmission mode of the data to be transmitted, the The first information is also used to indicate the transmission resource of the data to be transmitted;

The method also includes:

When receiving the first information, start the first timer;

During the running process of the first timer, stop using the first preconfigured resource to transmit the data to be transmitted, wherein the first preconfigured resource is a shared resource, or the first preconfigured resource is a non-shared resource .
The method according to claim 3, wherein the first information is used to indicate a transmission mode of the data to be transmitted, and the first information is further used to indicate a transmission resource of the data to be transmitted, comprising:

The first information is information in a first format, and the first format is used to indicate the transmission mode of the data to be transmitted; the information in the first format carries a first field, and the first field is used to indicate The transmission resource of the data to be transmitted.
The method according to claim 3 or 4, wherein the method further comprises:

Receive first configuration information and/or second configuration information sent by the network device, where the first configuration information is used to configure the first preconfigured resource, and the second configuration information is used to indicate the first timing timer duration.
The method according to any one of claims 3 to 5, wherein the method further comprises:

Receive third configuration information from the network device, where the third configuration information is used to indicate the timing for updating the first timer, and the third configuration information is carried in a radio resource control RRC release message.
The method according to claim 1 or 2, wherein the first information indicates that the data to be transmitted is transmitted by initiating a random access procedure, and the data to be transmitted is sent to a network device according to the transmission mode , including: sending the data to be transmitted to the network device through the random access resource broadcast by the network device during the random access process; or,

The first information is used to indicate the transmission resource, and the transmission resource is not a preconfigured resource of the terminal, and the sending the data to be transmitted to the network device according to the transmission resource includes: in a random access process Send the data to be transmitted to the network device through the transmission resource in the middle; or,

The first information is used to instruct the terminal to transmit the data to be transmitted by initiating a random access procedure, and the second information is used to indicate the resources for sending the random access preamble and the resources for sending the data to be transmitted, so the The sending of the data to be transmitted to the network device according to the transmission mode and the transmission resource includes:

In the random access process, the random access preamble is sent through the resource for sending the random access preamble indicated by the second information, and the resource to send the data to be transmitted is sent to the random access preamble through the resource indicated by the second information for sending the data to be transmitted sending the data to be transmitted by the network device; or,

The first information is used to instruct the terminal to transmit the data to be transmitted by initiating a random access procedure, and the second information is used to indicate the resources for sending the data to be transmitted. The transmission resource sends the data to be transmitted to the network device, including:

In the random access process, the random access preamble is sent through the random access resource broadcast by the network device, and the random access preamble is sent to the network device through the resource indicated by the second information for sending the data to be transmitted the data to be transmitted.
The method according to claim 1 or 2, wherein the transmission mode indicated by the first information is to transmit data to be transmitted in a pre-configured resource mode, and the second information indicates that a set or A target preconfigured resource in the multiple sets of preconfigured resources is used as the transmission resource, and the preconfigured resource is a periodic resource.
The method according to claim 8, wherein the second information indicates information of the target preconfigured resource; or,

The second information includes at least one bit associated with each set of preconfigured resources in one or more sets of preconfigured resources of the terminal, and at least one bit associated with any set of preconfigured resources is used to indicate any set of preconfigured resources. Whether preconfigured resources are available; or,

The second information indicates information of unavailable preconfigured resources in one or more sets of preconfigured resources of the terminal.
The method according to claim 8 or 9, characterized in that,

The time domain position of the target preconfigured resource is located after the first time point, and the first time point is determined by the time and offset value when the terminal receives the feedback information from the network device, and the feedback information is It indicates that the network device successfully receives the first small packet of data, and the time is before the first time point.
The method according to any one of claims 1 to 10, wherein the sending the first small packet of data and the first message to the network device comprises: in a radio resource control RRC-disconnected state, sending to the network device the first packet of data and the first message.
A method for indicating data transmission, comprising:

receiving a first small packet of data and a first message from the terminal, where the first message is used to indicate that the terminal has subsequent data to be transmitted;

Send first information and/or second information to the terminal, where the first information is used to indicate the transmission mode of the data to be transmitted, and the second information is used to indicate the transmission of the data to be transmitted resource;

Receive the to-be-transmitted data transmitted by the terminal using the transmission mode and/or on the transmission resource.
The method according to claim 12, wherein the sending the first information and/or the second information to the terminal comprises:

Send first information and second information to the terminal, wherein the first information is used to indicate that the data to be transmitted is transmitted by a dynamic scheduling method, and the second information is used to indicate that the data allocated for the dynamic scheduling method is used. the transmission resource; or,

Send first information to the terminal, where the first information is used to indicate a transmission mode of the data to be transmitted, and the first information is also used to indicate a transmission resource of the data to be transmitted.
The method according to claim 13, wherein the first information is used to indicate a transmission mode of the data to be transmitted, and the first information is further used to indicate a transmission resource of the data to be transmitted, comprising:

The first information is information in a first format, and the first format is used to indicate the transmission mode of the data to be transmitted; the information in the first format carries a first field, and the first field is used to indicate The transmission resource of the data to be transmitted.
The method according to claim 13 or 14, wherein the method further comprises:

Send first configuration information and/or second configuration information to the terminal, where the first configuration information is used to configure the first pre-configured resource, and the second configuration information is used to indicate the duration of the first timer Timing duration.
The method according to any one of claims 12 to 15, wherein the method further comprises:

Send third configuration information to the terminal, where the third configuration information is used to indicate the timing for updating the first timer, and the third configuration information is carried in a radio resource control RRC release message.
The method of claim 12, wherein:

The first information is used to indicate that the data to be transmitted is transmitted by initiating a random access procedure; or, the first information is used to indicate the transmission resource, and the transmission resource is not a preconfigured resource of the terminal; or ,

The first information is used to instruct the terminal to transmit the data to be transmitted by initiating a random access procedure, and the second information is used to indicate the resources for sending the random access preamble and the resources for sending the data to be transmitted, or The second information is used to indicate a resource for sending the data to be transmitted.
The method according to claim 12, wherein the terminal has preconfigured resources capable of transmitting the to-be-transmitted data, and the transmission mode indicated by the first information is a pre-configured resource mode to transmit the to-be-transmitted data, and the second information indicates that a target preconfigured resource in one or more sets of preconfigured resources of the terminal is used as the transmission resource, and the preconfigured resource is a periodic resource.
The method of claim 18, wherein:

The second information indicates the information of the target preconfigured resource; or,

The second information includes at least one bit associated with each set of preconfigured resources in one or more sets of preconfigured resources of the terminal, and at least one bit associated with any set of preconfigured resources is used to indicate the preconfigured resources is available; or,

The second information indicates information of unavailable preconfigured resources in one or more sets of preconfigured resources of the terminal.
A method for data transmission, characterized in that, applied to a terminal, the method comprising:

In a radio resource control RRC-disconnected state, sending a first small packet of data to a network device, wherein the terminal has data to be transmitted subsequently;

determining a target preconfigured resource from one or more sets of preconfigured resources of the terminal according to the resource corresponding to the first packet data;

The data to be transmitted is sent to the network device at the target preconfigured resource.
The method according to claim 20, wherein the data to be transmitted is second small packet data, and the first small packet data and the second small packet data are data divided from the first data; or,

The data to be transmitted is second data, and the second data and the first packet data are data divided from the first data; or,

The first small packet data and the to-be-transmitted data come from different data packets.
The method according to claim 20 or 21, wherein the resource corresponding to the first small packet of data is a random access preamble or a resource for sending the random access preamble, and the random access preamble is for sending the random access preamble. the random access preamble used in the random access process of the first small packet of data;

The determining of the target preconfigured resource from one or more sets of preconfigured resources of the terminal according to the resource corresponding to the first small packet data includes:

Determine an association relationship, where the association relationship includes at least: an association relationship between the random access preamble and the first preconfigured resource in the one or more sets of preconfigured resources, or, sending the random access preamble an association relationship between the resource and the first preconfigured resource;

According to the random access preamble or the resource for sending the random access preamble, and the association relationship, the first preconfigured resource is determined as the target preconfigured resource.
The method according to claim 22, wherein the determining the association relationship comprises:

The terminal is pre-stored with the association relationship; or,

The terminal receives the first message from the network device, and the first message includes the association relationship; or, the association relationship is determined by the index of the random access preamble and the one or more sets of preambles. The number of configuration resources is determined.
The method according to claim 20 or 21, wherein the resource corresponding to the first small packet of data is a time-frequency resource used for sending a message of the first small packet of data in a random access process, and the the resource corresponding to the first small packet of data, and determine the target preconfigured resource from one or more sets of preconfigured resources of the terminal, including:

Determining a preconfigured resource that has the same time-frequency position as the time-frequency resource in the one or more sets of preconfigured resources as the target preconfigured resource; or,

A preconfigured resource having the same index as the time-frequency resource in the one or more sets of preconfigured resources is determined as the target preconfigured resource.
The method according to claim 20 or 21, wherein the resource corresponding to the first small packet of data is a first preconfigured resource for transmitting the first small packet of data, and the first preconfigured resource is a periodic resource , determining the target preconfigured resource from one or more sets of preconfigured resources of the terminal according to the resource corresponding to the first small packet data, including:

The terminal determines the first preconfigured resource after the first preconfigured resource for transmitting the first small packet data and after at least one period as the target preconfigured resource, and the period is the first preconfigured resource. Period for configuring resources.
The method according to claim 20 or 21, wherein the resource corresponding to the first small packet data is a first preconfigured resource for transmitting the first small packet data, and the resource corresponding to the first small packet data resources, the target preconfigured resources are determined from one or more sets of preconfigured resources of the terminal, including:

A second preconfigured resource is determined from the one or more sets of preconfigured resources as the target preconfigured resource, and the first preconfigured resource and the second preconfigured resource are different sets of preconfigured resources.
The method according to any one of claims 20 to 26, wherein,

The time domain position of the target preconfigured resource is located after the first time point, and the first time point is determined by the time and offset value when the terminal receives the feedback information from the network device, and the feedback information is It indicates that the network device successfully receives the first small packet of data, and the time is before the first time point.
A computer-readable storage medium, wherein instructions are stored in the readable storage medium, and when the instructions are executed, the method according to any one of claims 1 to 11 is implemented, or the method as claimed in claim 1 is implemented. The method of any one of claims 12 to 19, or the implementation of the method of any one of claims 20 to 27.
A chip system, characterized in that the chip system includes a processor, the processor is coupled with a communication interface, and the processor is configured to run a computer program or instruction to implement the method according to any one of claims 1 to 11 method, or implement the method according to any one of claims 12 to 19, or implement the method according to any one of claims 20 to 27, the communication interface is used to communicate with other modules other than the chip to communicate.
A terminal, characterized by comprising: at least one processor, wherein the at least one processor is coupled to a memory, and the at least one processor is configured to execute instructions stored in the memory to execute the instructions according to any one of claims 1 to 11 or implement the method according to any one of claims 12-19, or implement the method according to any one of claims 20-27.