Information transmission method, terminal equipment, network equipment and computer storage medium

Abstract

The embodiment of the invention provides an information transmission method, and the method comprises the steps: terminal equipment receives first indication information, and the first indication information is used for indicating a transmission parameter of target information in a random access process; and the terminal device transmits the target information based on the transmission parameter in the random access process. The embodiment of the invention further provides terminal equipment, network equipment and a storage medium.

Description

[0001] This application is a divisional application of the PCT international patent application PCT / CN2021 / 071551 with an application date of January 13, 2021, which entered the Chinese national phase with Chinese patent application number 202180074929.7 and the invention name “Information transmission method, terminal equipment, network equipment and computer storage medium”. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to an information transmission method, terminal equipment, network equipment and computer storage medium. Background Art

[0003] Random access is a necessary process for establishing a wireless link between a terminal device and a network device. Only after the random access process is completed can the network device and the terminal device perform regular data transmission.

[0004] Due to the limitation of the processing capability of the terminal device, the coverage of the signal during the random access process is limited, for example, the coverage of the third random access message (Message3, Msg3) is limited. This easily leads to the restart of the access process, increasing the latency and power consumption of the random access of the terminal device. Therefore, how to flexibly perform random access and improve transmission coverage is an urgent problem to be solved. Summary of the invention

[0005] Embodiments of the present application provide an information transmission method, a terminal device, a network device, and a computer storage medium.

[0006] In a first aspect, an embodiment of the present application provides an information transmission method, the method comprising:

[0007] The terminal device receives first indication information, where the first indication information is used to indicate a transmission parameter of target information during a random access process;

[0008] During the random access process, the terminal device transmits the target information based on the transmission parameters.

[0009] In a second aspect, an embodiment of the present application provides an information transmission method, the method comprising:

[0010] The network device sends first indication information, where the first indication information is used to indicate a transmission parameter of target information during a random access process;

[0011] The network device transmits the target information based on the transmission parameters.

[0012] In a third aspect, an embodiment of the present application provides a terminal device, the terminal device comprising:

[0013] The first communication unit is configured to receive first indication information, where the first indication information is used to indicate a transmission parameter of target information during a random access process; and transmit the target information based on the transmission parameter during the random access process.

[0014] In a fourth aspect, an embodiment of the present application provides a network device, the network device comprising:

[0015] The second communication unit is configured to send first indication information, where the first indication information is used to indicate transmission parameters of target information during random access; and transmit the target information based on the transmission parameters.

[0016] In a fifth aspect, an embodiment of the present application provides a terminal device, the terminal device comprising: a first transceiver, a first processor, and a first memory storing a computer program;

[0017] The first transceiver, the first processor and the first memory communicate with each other via a first communication bus;

[0018] The first processor is configured to communicate with the network device through the first transceiver; wherein,

[0019] The first processor is further configured to execute the steps of the first information transmission method when running the computer program stored in the first memory in conjunction with the first transceiver.

[0020] In a sixth aspect, an embodiment of the present application provides a network device, the network device comprising: a second transceiver, a second processor, and a second memory storing a computer program;

[0021] The second transceiver, the second processor and the second memory communicate with each other via a second communication bus;

[0022] The second processor is configured to communicate with the terminal device through the second transceiver; wherein,

[0023] The second processor is further configured to execute the steps of the information transmission method of the second aspect when running the computer program stored in the second memory in conjunction with the second transceiver.

[0024] In the seventh aspect, an embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program is executed by a first processor to implement the steps of the method described in the first aspect; or; the computer program is executed by a second processor to implement the steps of the method described in the second aspect.

[0025] The information transmission method, terminal device, network device and computer storage medium provided by the embodiments of the present application, wherein the terminal device receives first indication information, and the first indication information is used to indicate the transmission parameters of the target information in the random access process; the terminal device transmits the target information based on the transmission parameters in the random access process. That is, the terminal device can determine the transmission mode of the information in the random access process according to the first indication information, thereby realizing flexible random access and improving transmission coverage. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of a random access process provided in an embodiment of the present application;

[0027] Figure 2 A schematic diagram of a wireless communication system provided in an embodiment of the present application;

[0028] Figure 3 A schematic diagram of an information transmission method provided in an embodiment of the present application Figure 1 ;

[0029] Figure 4 A schematic diagram of a time-frequency structure in a repeated transmission process provided in an embodiment of the present application;

[0030] Figure 5 A schematic diagram of a time-frequency structure in a random access process provided in an embodiment of the present application;

[0031] Figure 6 A schematic diagram of an information transmission method provided in an embodiment of the present application Figure 2 ;

[0032] Figure 7 A schematic diagram of an exemplary MAC layer signaling format provided in an embodiment of the present application;

[0033] Figure 8 A schematic block diagram of a terminal device provided in an embodiment of the present application Figure 1 ;

[0034] Fig. 9 A schematic block diagram of a terminal device provided in an embodiment of the present application Figure 2 ;

[0035] Fig.10 A schematic block diagram of a network device provided in an embodiment of the present application Figure 1 ;

[0036] Fig.11 A schematic block diagram of a network device provided in an embodiment of the present application Figure 2 . DETAILED DESCRIPTION

[0037] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present invention.

[0038] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or devices.

[0039] The New Radio (NR) system supported by the fifth generation mobile communication (5th Generation, 5G) technology is similar to the Long Term Evolution (LTE) system and both support random access procedures. Similar to LTE, refer to Figure 1 As shown in the flowchart, the random access process of NR is divided into four steps.

[0040] Step 1: The terminal device sends a first message (Message 1, Msg 1) to the network device, where Msg 1 includes a preamble.

[0041] Step 2: The network device sends a random access second message (Message 2, Msg2). Specifically, after receiving Msg1, the network device responds to the terminal device through Msg2. Msg2 indicates that the preamble has been received.

[0042] Step 3: The terminal device sends Msg3 to the network device. After correctly receiving Msg2, the terminal device uses the uplink (UL) authorization resource indicated by Msg2 to send Msg3.

[0043] Step 4: The network device sends a fourth random access message (Message 4, Msg4) to the terminal device. Here, the network device and the terminal device complete the conflict resolution through Msg4 and end the random access process.

[0044] In NR design, there are high requirements for the processing power of terminal devices and the antenna efficiency of terminal devices. When wearable standards are introduced in NR, the antenna efficiency will be significantly reduced due to the limitations of the processing power of wearable devices and the antenna transmission capability. This will affect the communication performance (especially coverage performance) of the uplink and downlink channels during transmission.

[0045] In particular, during the random access process, all signals are transmitted in a fixed time unit, and there is no corresponding timing mechanism for repeated transmission; therefore, the coverage performance of the signal during the random access process cannot be guaranteed, which easily leads to the restart of the access process, increasing the latency and power consumption of the random access of the terminal device. In addition, the signal during the random access process cannot be adaptive according to the device type. It is also difficult to guarantee the coverage of subsequent signal transmission.

[0046] Based on this, an embodiment of the present application provides an information transmission method, specifically, a terminal device receives first indication information, the first indication information is used to indicate the transmission parameters of target information in a random access process; the terminal device transmits the target information based on the transmission parameters in the random access process. In other words, the terminal device can determine the transmission mode of information in the random access process according to the first indication information, thereby realizing flexible random access and improving transmission coverage.

[0047] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS) system, LTE system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD) system, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, or NR system, etc.

[0048] Figure 2A wireless communication system 200 applied in an embodiment of the present application is shown. The wireless communication system 200 may include a network device 210. The network device 210 may be a device that communicates with a terminal device. The network device 210 may provide communication coverage for a specific geographical area, and may communicate with a terminal device (e.g., UE) located in the coverage area. Optionally, the network device 210 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, or a base station (NodeB, NB) in a WCDMA system, or an evolved base station (EvolutionalNode B, eNB or eNodeB) in an LTE system, or a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device may be a relay station, an access point, a vehicle-mounted device, a wearable device, a network-side device in a 5G network, or a network device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc.

[0049] The wireless communication system 200 also includes at least one terminal device 220 located within the coverage of the network device 210. The terminal device 220 can be mobile or fixed. Optionally, the terminal device 220 can refer to an access terminal, a user equipment (User Equipment, UE), a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent or a user device. The access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a Wireless Local Loop (Wireless Local Loop, WLL) station, a Personal Digital Assistant (Personal Digital Assistant, PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved PLMN, etc.

[0050] Figure 2 One network device and two terminal devices are shown exemplarily. Optionally, the wireless communication system 200 may include multiple network devices and each network device may include another number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0051] Optionally, the wireless communication system 200 may also include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiments of the present application.

[0052] It should be understood that the terms "system" and "network" are often used interchangeably in this article. The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0053] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0054] An embodiment of the present application provides an information transmission method, referring to Figure 3 As shown in the flowchart, the method includes step 310, step 320, step 330 and step 340.

[0055] In step 310, the network device sends first indication information; the first indication information is used to indicate transmission parameters of target information in the random access process.

[0056] In an embodiment of the present application, the network device may send the first indication information to the terminal device to indicate the transmission parameters of the target information during the random access process initiated by the terminal device to the network device.

[0057] Step 320: The terminal device receives the first indication information.

[0058] In an embodiment of the present application, the terminal device can receive the first indication information sent by the network device, and determine the transmission parameters of the target information when randomly accessing the network device according to the first indication information.

[0059] It can be understood that the target information refers to the information transmitted by the terminal device when initiating random access to the network device.

[0060] In a possible implementation manner, the target information may include at least one of the following information:

[0061] Randomly access the data information and / or control information of the second message (i.e. Msg2);

[0062] Randomly access data information and / or control information of a third message (i.e., Msg3);

[0063] Randomly access data information and / or control information of a fourth message (i.e., Msg4);

[0064] And, control information of the feedback message corresponding to the fourth message.

[0065] In short, the first indication information can indicate the transmission parameters of the data information and / or control information of Msg2 / 3 / 4.

[0066] Among them, Msg2 is downlink information, the data information of Msg2 can be the physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) of Msg2, and the control information of Msg2 can be the physical downlink control channel (Physical Downlink Control Channel, PDCCH) of Msg2.

[0067] Similarly, Msg3 is uplink information, the data information of Msg3 may be the physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) of Msg3, and the control information of Msg3 may be the physical uplink control information (Physical Uplink Control Channel, PUCCH) of Msg3.

[0068] The data information of Msg4 may be the PDSCH of Msg4, and the control information of Msg4 may be the PDCCH of Msg4.

[0069] In addition, the first indication information may also indicate the transmission parameters of the PUCCH associated with Msg4, that is, the transmission parameters of the control information of the feedback message corresponding to Msg4.

[0070] In a possible implementation, the transmission parameter includes at least one of the following:

[0071] The repetition factor of the target information to be transmitted;

[0072] The frequency domain position of the frequency hopping for transmitting the target information;

[0073] Modulation parameters for transmitting target information;

[0074] The resource that transmits the target information.

[0075] In the embodiment of the present application, a plurality of time domain resources may be aggregated by a repetition factor to perform repeated transmission of information. The coverage of the information may be enhanced by multiple repeated transmissions.

[0076] Here, the repetition factor can be understood as the number of times the information is repeatedly transmitted, which can be defined using the number of time domain units. In other words, the repetition factor specifically refers to the number of time domain units for repeated transmission of the target information. The time domain unit can be a time slot, an orthogonal frequency division multiplexing (OFDM) symbol, an OFDM symbol group, or other time domain repetition units.

[0077] For example, the repetition factor can be 1, 2, 4, 8 or 16, which respectively represent that the target information is repeatedly transmitted for 1, 2, 4, 8 or 16 slots. Figure 4 The repeated transmission diagram shown in FIG. 1 shows that the same information can be transmitted on four consecutive slots. When the available symbols of a slot do not meet the requirements, the repetition of the slot is ignored, that is, slot 1 and slot 2 are downlink transmission resources and cannot be used for uplink transmission. Therefore, the information on slot 1 and slot 2 can be ignored.

[0078] In addition, in the embodiment of the present application, the transmission parameter may also include the frequency domain position of the frequency hopping of the transmission target information. Specifically, the frequency hopping position may include the resource block index and / or offset of the frequency hopping.

[0079] In the embodiment of the present application, the modulation parameters may include information such as the modulation order limit of the target information. The resources for transmitting the target information may include the frequency domain and time domain positions mapped to the resources corresponding to the transmission target information.

[0080] Step 330: The network device transmits target information based on the transmission parameters.

[0081] Step 340: The terminal device transmits target information based on the transmission parameters.

[0082] In the embodiment of the present application, the target information is the interaction information between the network device and the terminal device. Therefore, after the network device and the terminal device determine the transmission parameters of the target information, the interaction of the target information is performed based on the transmission parameters.

[0083] Exemplary, reference Figure 5 In the schematic diagram of the time-frequency structure shown in FIG. 1 , the terminal device determines that the repetition factor of the PUSCH corresponding to Msg3 is 2 slots according to the first indication information sent by the network device. In this way, the terminal device can repeatedly send the PUSCH corresponding to Msg3 on part of the time-frequency resources of slot 4 and slot 5 according to the instruction of the first indication information, and the network device repeatedly receives the PUSCH corresponding to Msg3 on the same time-frequency resources of slot 4 and slot 5.

[0084] It can be seen that in the embodiment of the present application, the network device can indicate to the terminal device the target information transmission parameters during the random access process, such as the number of repeated transmissions, transmission resources and other parameters. In this way, the terminal device can repeat the transmission of the target information according to the indicated transmission resources and other information according to the instructions of the network device. In this way, the access success rate and robustness of the terminal device are improved when the capacity is limited, such as increased coverage, reduced antenna gain, and reduced bandwidth.

[0085] In one embodiment of the present application, refer to Figure 6 In the flowchart shown in the figure, before the network device sends the first indication information and the terminal device receives the first indication information, the following steps may also be performed:

[0086] Step 350: The terminal device sends a first random access message (i.e., Msg1) to the network device; the first message includes a random access preamble sequence;

[0087] Step 360: The network device receives the first message;

[0088] Step 370: The network device determines first indication information based on the random access preamble sequence.

[0089] It can be understood that the terminal device first sends Msg1 to the network device to trigger the random access process. After receiving the Msg1, the network device generates the first indication information according to the preamble sequence carried by the Msg1.

[0090] In a possible implementation, the network device may determine the type / capability of the terminal device based on the preamble sequence carried by Msg1, and generate the first indication information based on the type / capability of the terminal device.

[0091] Here, multiple preamble sequences for random access can be divided into multiple groups, each group representing a terminal device type / capability. In this way, the terminal device can determine a preamble sequence group according to its own type / capability, and then randomly select a preamble sequence from the group to send.

[0092] Based on this, after receiving the preamble code sequence carried by Msg1, the network device can determine the type / capability of the terminal device according to the preamble code sequence, thereby determining the transmission parameters of the target information according to the type / capability of the terminal device, and generate the first indication information for sending.

[0093] Exemplarily, terminal devices can be divided into terminal devices with coverage enhancement capability and terminal devices without coverage enhancement capability. When a terminal device with coverage enhancement capability triggers random access, a preamble sequence can be randomly selected from a preamble sequence group dedicated to coverage enhancement terminal devices and sent to a network device. The network device can determine that the terminal device can perform coverage enhancement based on the preamble sequence, so that the network device can configure the number of repeated transmissions for the terminal device so that the terminal device can enhance the coverage of the signal through transmission.

[0094] In a possible implementation, in addition to determining the first indication information according to the terminal device type / capability, the network device may also determine the transmission parameters of the target information according to factors such as the current network load status and channel status.

[0095] For example, if the current network load is serious, the network device can configure a smaller repetition factor for the terminal device to avoid causing a signaling storm. If the channel state between the terminal device and the network device is poor, the network device can configure a larger repetition factor for the terminal device to improve the random access success rate.

[0096] It can be seen that the information transmission method provided in the embodiment of the present application can configure the transmission parameters of random access for the terminal device according to the type / capability of the terminal device. In this way, the transmission parameters can be adaptive to the type / capability of the terminal device, thereby realizing flexible random access and improving transmission coverage.

[0097] The following describes an implementation method in which a network device in an embodiment of the present application sends a first indication information to a terminal device.

[0098] In an embodiment of the present application, the first indication information is carried via medium access control (MAC) layer signaling.

[0099] That is, the transmission parameters of the target information can be indicated by MAC layer signaling. That is, the terminal device can determine the transmission parameters of Msg2 / 3 / 4 according to the MAC layer signaling sent by the network device.

[0100] Specifically, the bits defined in the MAC layer signaling format may be used to indicate the transmission parameters.

[0101] In a possible implementation, the network device may carry the first indication information through the first field and / or the second field in the MAC layer signaling, and send the MAC layer signaling to the terminal device. In this way, after receiving the MAC layer signaling, the terminal device determines the first indication information based on the first field and / or the second field in the MAC signaling.

[0102] The first field is a reserved field for MAC layer signaling; the second field is a dedicated field for MAC layer signaling.

[0103] That is to say, the transmission parameters of the target information during the random access process of the terminal device can be indicated through a dedicated field or a reserved field in the MAC layer signaling format.

[0104] Here, the reserved field may be a field reserved in the MAC layer signaling that has no actual meaning. The dedicated field may be a field newly added in the MAC layer signaling that is dedicated to indicating the target information transmission parameters.

[0105] refer to Figure 7 An exemplary MAC layer signaling format diagram is shown, Figure 7 In the MAC layer signaling format shown in FIG. , each line represents a byte, and each line of bytes contains 8 bits. Figure 7 As shown, the MAC layer signaling format includes the following fields:

[0106] R: reserved bit, including 1 bit.

[0107] Timing Advance Command: used to indicate uplink transmission timing advance information, including 13 bits.

[0108] Uplink Grant (UL Grant): used to indicate uplink transmission resources, including 27 bits.

[0109] Temporary Cell Radio Network Identifier (Temporary C-RNTI): used to indicate the temporary identifier used by the terminal device during random access, including 16 bits.

[0110] Optionally, in addition to the above fields, the MAC layer signaling may also include a repetition indication field (RepetitionIndication). Specifically, the Repetition Indication field is a newly added bit field, which may be used to indicate transmission parameters of the target information.

[0111] In the examples of this application, refer to Figure 7 As shown, the first field may be a reserved bit R in the MAC layer signaling, or a field reserved for CSI request in the UL Grant, namely, a CSI request bit. In addition, the second field may be Figure 7 The newly added Repetition Indication field is shown.

[0112] Optionally, the network device may directly indicate the transmission parameters of the target information to the terminal device via the first field in the MAC layer signaling.

[0113] That is, the network device indicates the transmission parameters of the target information through the reserved bit R or the CSI request bit in the MAC layer signaling.

[0114] In a possible implementation, the first field indicates whether the target information is repeated. Specifically, when the value of the first field is a first value (e.g., 0 or 1), it indicates that the target information is not repeatedly transmitted, that is, the target information is transmitted in 1 time domain unit. When the value of the first field is a second value (e.g., 0 or 1), it indicates that the repetition factor of the target information is N time domain units, such as 16 slots. Here, N is an integer greater than 1.

[0115] Furthermore, the network device may pre-configure the value of N for the terminal device, or the network side and the terminal device may agree in advance on the value of N, which is not limited in this embodiment of the present application.

[0116] In a possible implementation, the number of target information repetitions is indicated by the first field. Specifically, when the value of the first field is a first value (0 or 1), the repetition factor of the target information is indicated to be N time domain units; when the value of the first field is a second value (0 or 1), the repetition factor of the target information is indicated to be M time domain units. Wherein, N and M are both integers greater than 1, and N and M are different.

[0117] Furthermore, N and M may be values ​​pre-configured on the network side, or values ​​agreed upon between the network side and the terminal device, which is not limited in the embodiments of the present application.

[0118] It can be seen that the embodiment of the present application can indicate the transmission parameters of the target information only through the reserved field in the MAC layer signaling. In this way, the transmission parameters of the target information can be determined compatible with the existing signaling framework, reducing the complexity of receiving and processing of the terminal device.

[0119] Optionally, the network device may also indicate, through the first field, whether the third field in the MAC layer signaling is redefined.

[0120] Here, the third field can be Figure 7 At least one of the following fields is shown: Timing Advance Command, UL Grant, and Temporary C-RNTI.

[0121] If the third field is not redefined, the third field still has its own function, that is, it is still used to carry timing advance information, uplink authorization information, or temporary identification information. If the third field is redefined, the third field is given a new meaning, that is, it is used to indicate the transmission parameters of the target information.

[0122] Specifically, when the network device sets the value of the first field in the MAC layer signaling to a first value (e.g., 0 or 1), it indicates that the third field in the MAC layer signaling carries the first indication information, that is, the third field is redefined. When the network device sets the value of the first field to a second value (e.g., 1 or 0), it indicates that the third field carries at least one of uplink authorization information, timing advance information, and temporary identification information. Here, the first value is different from the second value, that is, the third field is not redefined.

[0123] In this way, after receiving the MAC layer signaling, the terminal device first reads the value of the first field. If the value of the first field is the first value, it can be determined that the third field carries the first indication information. In this way, the terminal device can continue to read the value of the third field and determine the transmission parameters of the target information according to the value of the third field.

[0124] In the embodiment of the present application, the terminal device can determine the transmission parameter corresponding to the value of the third field according to the correspondence between the preset value and the transmission parameter. The correspondence between the value and the transmission parameter can be configured from a high level, or agreed in advance between the network side and the terminal device, and the embodiment of the present application does not limit this.

[0125] It can be seen that the embodiment of the present application can indicate the transmission parameters of the target information by redefining the meaning of the fields in the original signaling structure. In this way, the transmission parameters of the target information can be determined compatible with the existing signaling framework, reducing the complexity of receiving and processing by the terminal device.

[0126] Optionally, the network device may directly indicate the transmission parameters of the target information to the terminal device via the second field in the MAC layer signaling.

[0127] That is to say, the network device can indicate the transmission parameter through the value of the Repetition Indication field. In this way, the terminal device can determine the transmission parameter of the target information according to the value of the second field. Among them, the terminal device can determine the transmission parameter corresponding to the value of the second field according to the correspondence between the preset value and the transmission parameter. The correspondence between the value and the transmission parameter can be configured from a high level, or agreed in advance between the network side and the terminal device, and the embodiments of the present application do not limit this.

[0128] Exemplarily, the network device may indicate the repetition factor of the PUSCH corresponding to Msg3 through the value of the Repetition Indication field. When the value of the Repetition Indication field is 0, it indicates that the PUSCH corresponding to Msg3 is not repeatedly transmitted. When the value of the Repetition Indication field is 4, it indicates that the repetition factor of the PUSCH corresponding to Msg3 is 4 time domain units, that is, the PUSCH corresponding to Msg3 is repeatedly transmitted for 4 time domain units.

[0129] Optionally, the network device may use the first field and the second field in the MAC layer signaling simultaneously to indicate the transmission parameters of the target information to the terminal device.

[0130] In one embodiment of the present application, the network device may indicate, through the first field, whether the second field in the MAC layer signaling is used to carry the first indication information.

[0131] Specifically, when the value of the first field is set to a first value (for example, 0 or 1), it indicates that the second field in the MAC layer signaling carries the first indication information; when the value of the second field is set to a second value (for example, 1 or 0), it indicates that the MAC layer signaling does not carry the first indication information. Here, the first value is different from the second value.

[0132] Correspondingly, after receiving the MAC layer signaling, the terminal device can first read the value of the first field. When the first field is the first value, it reads the value of the second field in the MAC layer signaling to determine the transmission parameters of the target information.

[0133] It can be seen that the embodiments of the present application can use a newly added dedicated field to indicate the transmission parameters of the target information, thereby avoiding the impact on the fields in the existing signaling structure.

[0134] In an embodiment of the present application, the transmission parameters of the target information may also be implicitly indicated through DCI or random access response (Random Access Response, RAR) information (ie, Msg2).

[0135] In a possible implementation manner, the network device may implicitly indicate the transmission parameters of the target information through the timing advance (TA) information in the RAR.

[0136] Specifically, the network device sends TA information to the terminal device, where the TA information is used for uplink synchronization, and the TA information is also used to represent the first indication information.

[0137] In this way, after receiving the TA information, the terminal device can not only determine the number of TAs for uplink data synchronization, but also determine the transmission parameters of the target information based on the TA information.

[0138] Optionally, when the transmission parameters include a repetition factor of the transmission target information, the terminal device may determine the repetition factor corresponding to the TA information based on a correspondence between the number of TA units and the repetition factor.

[0139] Exemplarily, the corresponding relationship between the number of TA units and the repetition factor may be as follows: when the number of TA units does not exceed +-Y TA units, the corresponding repetition factor is 1;

[0140] When the number of TA units exceeds +-Y TA units and does not exceed +-W TA units, the corresponding repetition factor is 2;

[0141] When the number of TA units exceeds +-W TA units and does not exceed +-V TA units, the corresponding repetition factor is 4;

[0142] When the number of TA units exceeds +-V TA units, the corresponding repetition factor is 8.

[0143] In an embodiment of the present application, the correspondence between the number of TA units and the repetition factor may be pre-configured or agreed upon in advance between the network side and the terminal device, and this embodiment of the present application does not limit this.

[0144] In another possible implementation, the network device may implicitly indicate the transmission parameters of the target information through the resource scheduling information in the RAR.

[0145] Specifically, the network device sends resource scheduling information to the terminal device, and the resource scheduling information is used to schedule the uplink transmission resources of Msg3, specifically uplink frequency domain resources. In addition, the resource scheduling information is also used to represent the first indication information.

[0146] In this way, after receiving the resource scheduling information, the terminal device can not only determine the uplink transmission resources for transmitting Msg3, but also determine the transmission parameters of the target information based on the resource scheduling information.

[0147] Optionally, when the transmission parameters include a repetition factor of the transmission target information, the terminal device may determine the repetition factor corresponding to the number of resource blocks carried in the above resource scheduling information based on the correspondence between the number of resource blocks and the repetition factor.

[0148] Exemplarily, the corresponding relationship between the number of resource blocks and the repetition factor may be as follows:

[0149] When the resource block is less than or equal to Y RBs, the corresponding repetition factor is 1;

[0150] The resource block is greater than Y RBs and less than or equal to W RBs, and the corresponding repetition factor is 2;

[0151] The resource block is greater than W RBs and less than or equal to V RBs, and the corresponding repetition factor is 4;

[0152] The resource block is larger than V RBs, and the corresponding repetition factor is 8.

[0153] In an embodiment of the present application, the correspondence between the number of resource blocks and the repetition factor may be pre-configured or may be agreed upon in advance between the network side and the terminal device, and this embodiment of the present application does not limit this.

[0154] In yet another possible implementation, the network device may use DCI information to indicate transmission parameters of the target information.

[0155] Refer to the DCI format 1_0 fields shown in Table 1. DCI format 1_0 may include a frequency domain resource allocation field, a time domain resource allocation field, a virtual resource block to physical resource block mapping (VRB-to-PRB mapping) field, a modulation and coding scheme field, a transport block scaling factor (Transport Block scaling, TB scaling) field, and an LSBs of SFN field.

[0156] Among them, the length of the frequency domain resource allocation resource field is bits, where, in the case where the control resource set #0 (Control-Resource Set #0, CORESET #0) has a high-level configuration, Equal to the size of CORESET#0. If CORESET#0 is not configured, Equal to the initial downlink bandwidth part (Band Width Part, BWP).

[0157] The time-frequency resource allocation field includes 4 bits, and the VRB-to-PRB mapping field includes 1 bit to indicate discrete or continuous PRB mapping. The Modulation and coding scheme field includes 5 bits to characterize the modulation order. The TB scaling field includes 2 bits. When using MsgB-RNTI and RA-RNTI in shared spectrum to scramble DCI, the LSBs of SFN field includes two bits. In other cases, the LSBs of SFN field is not carried.

[0158] Table 1

[0159]

[0160] Specifically, the network device may implicitly indicate the transmission parameters of the target information through the transport block scaling factor TB scaling in the above DCI format. That is, the TB scaling field may indicate both the transport block scaling factor and the transmission parameters of the target information.

[0161] Specifically, the network device may send a PDCCH DCI to the terminal device. The DCI may be scrambled using a random access temporary identifier (RA-RNTI), or a 2-step random access (i.e., non-contention random access) RNTI (MsgB-RNTI), or other RNTIs.

[0162] Correspondingly, after receiving the PDCCH DCI sent by the network device, the terminal device can decode the TB scaling field and determine the transmission parameters of the target information.

[0163] Optionally, the terminal device may determine the repetition factor corresponding to the TB scaling in the PDCCH DCI according to a correspondence between a preset transmission block scaling factor and a repetition factor.

[0164] In summary, the embodiments of the present application can indicate the transmission parameters of the target information by reusing the meaning of the fields in the original signaling structure. In this way, the transmission parameters of the target information can be determined compatible with the existing signaling framework, reducing the complexity of receiving and processing by the terminal device.

[0165] In an embodiment of the present application, a terminal device is also provided, such as Figure 8 The terminal device structure schematic diagram shown in FIG. 1 includes:

[0166] The first communication unit 801 is configured to receive first indication information, where the first indication information is used to indicate transmission parameters of target information during a random access process; and transmit the target information based on the transmission parameters during the random access process.

[0167] Optionally, the target information includes at least one of the following:

[0168] Randomly access data information and / or control information of the second message;

[0169] Randomly access data information and / or control information of a third message;

[0170] Randomly access data information and / or control information of a fourth message;

[0171] And, control information of the feedback message corresponding to the fourth message.

[0172] Optionally, the transmission parameter includes at least one of the following:

[0173] a repetition factor for transmitting the target information;

[0174] The frequency domain position of the frequency hopping for transmitting the target information;

[0175] Modulation parameters for transmitting the target information;

[0176] The resource that transmits the target information.

[0177] Optionally, the first indication information is carried via media access control MAC layer signaling.

[0178] Optionally, the first communication unit 801 is further configured to receive MAC layer signaling; the MAC layer signaling includes a first field and a second field; the first field is a reserved field of the MAC layer signaling; the second field is a dedicated field of the MAC layer signaling;

[0179] The terminal device also includes a first processing unit configured to determine the first indication information based on the first field and / or the second field.

[0180] Optionally, when the value of the first field is a first value, it indicates that the second field in the MAC layer signaling carries the first indication information;

[0181] The first processing unit is configured to obtain the first indication information based on the second field of the MAC layer signaling when the value of the first indication field is a first value.

[0182] Optionally, when the value of the first field is a first value, it indicates that the third field in the MAC layer signaling carries the first indication information; when the value of the first field is a second value, it indicates that the third field carries at least one of uplink authorization information, timing advance information, and temporary identification information;

[0183] The first processing unit is further configured to cause the terminal device to obtain the first indication information based on the third field in the MAC layer signaling when the value of the first indication field is a first value.

[0184] Optionally, the first field is a reserved bit R in the MAC layer signaling, or a reserved CSI request field.

[0185] Optionally, the first communication unit 801 is configured to receive timing advance information for the terminal device; the timing advance information is used for uplink synchronization;

[0186] The first processing unit is configured for the terminal device to determine the first indication information based on the timing advance information.

[0187] Optionally, the first processing unit is configured to determine the repetition factor corresponding to the timing advance information based on a correspondence between the number of timing advance units and the repetition factor.

[0188] Optionally, the first communication unit 801 is configured to receive resource scheduling information; the resource scheduling information is used to schedule uplink resources of the random access third message;

[0189] The first processing unit is configured to determine the first indication information based on the resource scheduling information.

[0190] Optionally, the first processing unit is configured to determine the repetition factor corresponding to the number of resource blocks carried in the resource scheduling information based on a correspondence between the number of resource blocks and the repetition factor.

[0191] Optionally, the first communication unit 801 is further configured to receive downlink control information DCI sent by a network device; the DCI includes a transport block scaling factor;

[0192] The first processing unit is configured to determine the first indication information based on the transmission block scaling factor.

[0193] Optionally, the first communication unit 801 is further configured to send a first message of a random access process to the network device; the first message includes a random access preamble code sequence.

[0194] It should be noted that the functional units in this embodiment may be integrated into one processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above integrated module may be implemented in the form of hardware or in the form of software functional modules.

[0195] If the integrated module is implemented in the form of a software function module and is not sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this embodiment is essentially or the part that contributes to the prior art or the whole or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server, or network device, etc.) or a processor to perform all or part of the steps of the method of this embodiment. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, etc., which can store program code.

[0196] Based on the above embodiment, another embodiment of the present application further provides a terminal device, such as Fig. 9 As shown, the terminal device provided in the embodiment of the present application may include: a first transceiver 901, a first processor 902, and a first memory 903 storing executable instructions of the first processor 902;

[0197] The first transceiver 901, the first processor 902 and the first memory 903 communicate via a first communication bus 904; wherein,

[0198] The first transceiver 901, when used to run the computer program stored in the first memory 903, can execute the following instructions: receive first indication information, where the first indication information is used to indicate transmission parameters of target information during a random access process; and transmit the target information based on the transmission parameters during the random access process.

[0199] Optionally, the first transceiver 901 is further configured to execute the following instructions: receive MAC layer signaling; the MAC layer signaling includes a first field and a second field; the first field is a reserved field of the MAC layer signaling; the second field is a dedicated field of the MAC layer signaling;

[0200] The first processor 902, when used to run the computer program stored in the execution memory 903, may execute the following instructions: determine the first indication information based on the first field and / or the second field.

[0201] Optionally, when the value of the first field is a first value, it indicates that the second field in the MAC layer signaling carries the first indication information;

[0202] The first processor 902 is further configured to execute the following instruction: when the value of the first indication field is a first value, acquiring the first indication information based on the second field of the MAC layer signaling.

[0203] Optionally, when the value of the first field is a first value, it indicates that the third field in the MAC layer signaling carries the first indication information; when the value of the first field is a second value, it indicates that the third field carries at least one of uplink authorization information, timing advance information, and temporary identification information;

[0204] Based on this, the first processor 902 is further configured to execute the following instruction: when the value of the first indication field is a first value, obtaining the first indication information based on the third field in the MAC layer signaling.

[0205] Optionally, the first transceiver 901 is further configured to execute the following instructions: receive timing advance information; the timing advance information is used for uplink synchronization;

[0206] The first processor 902 is further configured to execute the following instruction: determine the first indication information based on the timing advance information.

[0207] Optionally, the first processor 902 is further used to execute the following instruction: the terminal device determines the repetition factor corresponding to the timing advance information based on the correspondence between the number of timing advance units and the repetition factor.

[0208] Optionally, the first transceiver 901 is further configured to execute the following instructions: receive resource scheduling information; the resource scheduling information is used to schedule uplink resources of the random access third message;

[0209] The first processor 902 is further configured to execute the following instruction: determine the first indication information based on the resource scheduling information.

[0210] Optionally, the first processor 902 is further used to execute the following instruction: the terminal device determines the repetition factor corresponding to the number of resource blocks carried in the resource scheduling information based on the correspondence between the number of resource blocks and the repetition factor.

[0211] Optionally, the first transceiver 901 is further configured to execute the following instructions: receive downlink control information DCI sent by a network device; the DCI includes a transport block scaling factor;

[0212] The first processor 902 is further configured to execute the following instruction: determine the first indication information based on the transmission block scaling factor.

[0213] Optionally, the first transceiver 901 is further used to execute the following instructions: send a first message of a random access process to a network device; the first message includes a random access preamble code sequence.

[0214] In summary, the terminal device provided in the embodiment of the present application can receive first indication information, where the first indication information is used to indicate the transmission parameters of the target information during the random access process; the terminal device transmits the target information based on the transmission parameters during the random access process. In other words, the terminal device can determine the transmission method of the information during the random access process according to the first indication information, thereby achieving flexible random access and improving transmission coverage.

[0215] In an embodiment of the present application, a network device is also provided, such as Fig.10 As shown, the network device includes:

[0216] The second communication unit 1001 is configured to send first indication information, where the first indication information is used to indicate transmission parameters of target information in a random access process; and transmit the target information based on the transmission parameters.

[0217] Optionally, the target information includes at least one of the following:

[0218] Randomly access data information and / or control information of the second message;

[0219] Randomly access data information and / or control information of a third message;

[0220] Randomly access data information and / or control information of a fourth message;

[0221] And, control information of the feedback message corresponding to the fourth message.

[0222] Optionally, the transmission parameter includes at least one of the following:

[0223] a repetition factor for transmitting the target information;

[0224] The frequency domain position of the frequency hopping for transmitting the target information;

[0225] Modulation parameters for transmitting the target information;

[0226] The resource that transmits the target information.

[0227] Optionally, the first indication information is carried via media access control MAC layer signaling.

[0228] Optionally, the network device may further include a second processing unit; wherein,

[0229] The second processing unit is configured to carry the first indication information through a first field and / or a second field in a MAC layer signaling; the first field is a reserved field of the MAC layer signaling; and the second field is a dedicated field of the MAC layer signaling;

[0230] The second communication unit 1001 is configured to send the MAC layer signaling.

[0231] Optionally, the second processing unit is configured to set the value of the first field to a first value to indicate that the second field in the MAC layer signaling carries the first indication information; and carry the first indication information through the second field.

[0232] Optionally, the second processing unit is configured to set the value of the first field to a first value to indicate that the third field in the MAC layer signaling carries the first indication information; wherein, when the value of the first field is a second value, it is used to indicate that the third field carries at least one of uplink authorization information, timing advance information, and temporary identification information; the network device carries the first indication information through the third field in the MAC layer signaling.

[0233] Optionally, the first field is a reserved bit R in the MAC layer signaling, or a reserved channel state information CSI request request field.

[0234] Optionally, the second communication unit 1001 is configured to send timing advance information to the network device; the timing advance information is used for uplink synchronization; and the timing advance information is also used to characterize the first indication information.

[0235] Optionally, the second communication unit 1001 is configured to send resource scheduling information; the resource scheduling information is used to schedule uplink resources of the random access third message; the resource scheduling information is also used to characterize the first indication information.

[0236] Optionally, the second communication unit 1001 is configured to send downlink control information DCI; the DCI includes a transport block scaling factor; and the transport block scaling factor is used to characterize the first indication information.

[0237] Optionally, the second communication unit 1001 is configured to send a random access first message to a terminal device, where the first message includes a random access preamble sequence;

[0238] Optionally, the second processing unit is further configured to determine the first indication information based on the preamble code sequence.

[0239] It should be noted that the functional units in this embodiment may be integrated into one processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above integrated module may be implemented in the form of hardware or in the form of software functional modules.

[0240] If the integrated module is implemented in the form of a software function module and is not sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this embodiment is essentially or the part that contributes to the prior art or the whole or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server, or network device, etc.) or a processor to perform all or part of the steps of the method of this embodiment. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, etc., which can store program code.

[0241] Based on the above embodiment, another embodiment of the present application further provides a network device, such as Fig.11 As shown, the network device provided in the embodiment of the present application may include: a second transceiver 1101, a second processor 1102, and a second memory 1103 storing executable instructions of the second processor;

[0242] The second transceiver 1101, the second processor 1102 and the second memory 1103 communicate via a second communication bus 1104;

[0243] The second transceiver 1101, when running the computer program stored in the second memory 1103, can execute the following instructions: sending first indication information, where the first indication information is used to indicate transmission parameters of target information during random access; and transmitting the target information based on the transmission parameters.

[0244] Optionally, the second processor 1102, when used to run the computer program stored in the second memory 1103, may execute the following instructions: the network device carries the first indication information through a first field and / or a second field in a MAC layer signaling; the first field is a reserved field of the MAC layer signaling; the second field is a dedicated field of the MAC layer signaling;

[0245] The second transceiver 1101 is further configured to execute the following instruction: send the MAC layer signaling.

[0246] Optionally, the second processor 1102 is further used to execute the following instructions: the network device sets the value of the first field to a first value to indicate that the second field in the MAC layer signaling carries the first indication information; the network device carries the first indication information through the second field.

[0247] Optionally, the second processor 1102 is also used to execute the following instructions: set the value of the first field to a first value to indicate that the third field in the MAC layer signaling carries the first indication information; wherein, when the value of the first field is a second value, it is used to indicate that the third field carries at least one of uplink authorization information, timing advance information, and temporary identification information; carry the first indication information through the third field in the MAC layer signaling.

[0248] Optionally, the second transceiver 1101 is further used to execute the following instructions: send timing advance information; the timing advance information is used for uplink synchronization; the timing advance information is also used to represent the first indication information.

[0249] Optionally, the second transceiver 1101 is further used to execute the following instructions: send resource scheduling information; the resource scheduling information is used to schedule uplink resources of the random access third message; the resource scheduling information is also used to characterize the first indication information.

[0250] Optionally, the second transceiver 1101 is further used to execute the following instructions: send downlink control information DCI; the DCI includes a transport block scaling factor; the transport block scaling factor is used to characterize the first indication information.

[0251] Optionally, the second transceiver 1101 is further configured to execute the following instructions: receive a first random access message sent by a terminal device, where the first message includes a random access preamble sequence;

[0252] The second processor 1102 is further configured to execute the following instruction: determine the first indication information based on the preamble code sequence.

[0253] In summary, the network device provided in the embodiment of the present application can send first indication information to the terminal device, where the first indication information is used to indicate the transmission parameters of the target information during the random access process; and transmit the target information based on the transmission parameters. In other words, the terminal device can determine the transmission method of the information during the random access process according to the first indication information, thereby realizing flexible random access and improving transmission coverage.

[0254] It should be understood that the memory in this embodiment can be a volatile memory or a non-volatile memory, and can also include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a magnetic random access memory (FRAM), a flash memory, a magnetic surface memory, an optical disk, or a compact disc read-only memory (CD-ROM); the magnetic surface memory can be a disk memory or a tape memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), SyncLink Dynamic Random Access Memory (SLDRAM), and Direct Rambus Random Access Memory (DRRAM).The memories described in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

[0255] The present application also provides a computer storage medium, specifically a computer-readable storage medium, on which computer instructions are stored. As a first implementation, when the computer storage medium is located in a terminal, the computer instructions are executed by a processor to implement any step of the above-mentioned information transmission method in the present application.

[0256] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0257] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0258] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0259] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0260] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0261] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0262] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0263] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A method for transmitting information, the method comprising: The terminal device receives first indication information, where the first indication information is used to indicate a transmission parameter of target information during a random access process; During the random access process, the terminal device transmits the target information based on the transmission parameters.

2. The method according to claim 1, wherein: The target information includes at least one of the following: Randomly access data information and / or control information of the second message; Randomly access data information and / or control information of a third message; Randomly access data information and / or control information of a fourth message; And, control information of the feedback message corresponding to the random access fourth message.

3. The method according to claim 1, wherein: The transmission parameters include at least one of the following: a repetition factor for transmitting the target information; The frequency domain position of the frequency hopping for transmitting the target information; Modulation parameters for transmitting the target information; The resource that transmits the target information.

4. The method according to any one of claims 1 to 3, wherein: The first indication information is carried via media access control MAC layer signaling.

5. The method according to claim 4, wherein: The terminal device receives first indication information, including: The terminal device receives MAC layer signaling; the MAC layer signaling includes a first field and a second field; the first field is a reserved field of the MAC layer signaling; the second field is a dedicated field of the MAC layer signaling; The terminal device determines the first indication information based on the first field and / or the second field.

6. The method according to any one of claims 1 to 3, wherein: The terminal device receives first indication information, including: The terminal device receives downlink control information DCI; the DCI includes a transport block scaling factor; Based on the transport block scaling factor, the first indication information is determined.

7. The method according to any one of claims 1 to 3, wherein: Before the terminal device receives the first indication information, the method further includes: A first random access message is sent to a network device; the first random access message includes a random access preamble sequence.

8. An information transmission method, the method comprising: The network device sends first indication information, where the first indication information is used to indicate a transmission parameter of target information during a random access process; The network device transmits the target information based on the transmission parameters.

9. The method according to claim 8, wherein: The target information includes at least one of the following: Randomly access data information and / or control information of the second message; Randomly access data information and / or control information of a third message; Randomly access data information and / or control information of a fourth message; And, control information of the feedback message corresponding to the random access fourth message.

10. The method according to claim 8, wherein: The transmission parameters include at least one of the following: a repetition factor for transmitting the target information; The frequency domain position of the frequency hopping for transmitting the target information; Modulation parameters for transmitting the target information; The resource that transmits the target information.

11. The method according to any one of claims 8 to 10, wherein: The first indication information is carried via media access control MAC layer signaling.

12. The method according to claim 11, wherein: The network device sends first indication information, including: The network device carries the first indication information through a first field and / or a second field in a MAC layer signaling; the first field is a reserved field of the MAC layer signaling; and the second field is a dedicated field of the MAC layer signaling; The network device sends the MAC layer signaling.

13. The method according to any one of claims 8 to 10, wherein: The network device sends first indication information, including: The network device sends downlink control information DCI; the DCI includes a transmission block scaling factor; the transmission block scaling factor is used to represent the first indication information.

14. The method according to any one of claims 8 to 10, wherein: Before the network device sends the first indication information, the method further includes: Receiving a first random access message sent by a terminal device, where the first random access message includes a random access preamble sequence; The first indication information is determined based on the random access preamble code sequence.

15. A terminal device, comprising: A first communication unit is configured to receive first indication information, where the first indication information is used to indicate a transmission parameter of target information in a random access process; And in the random access process, the target information is transmitted based on the transmission parameter.

16. A network device, comprising: A second communication unit is configured to send first indication information, where the first indication information is used to indicate a transmission parameter of target information in a random access process; And transmitting the target information based on the transmission parameters.

17. A terminal device, comprising: A first transceiver, a first processor and a first memory storing a computer program; The first transceiver, the first processor and the first memory communicate with each other via a first communication bus; The first processor is configured to communicate with the network device through the first transceiver; wherein, The first processor is further configured to execute the steps of the method according to any one of claims 1 to 7 when running the computer program stored in the first memory in conjunction with the first transceiver.

18. A network device, comprising: a second transceiver, a second processor, and a second memory storing a computer program; The second transceiver, the second processor and the second memory communicate with each other via a second communication bus; The second processor is configured to communicate with the terminal device through the second transceiver; wherein, The second processor is further configured to execute the steps of the method according to any one of claims 8 to 14 when running the computer program stored in the second memory in conjunction with the second transceiver.

19. A computer-readable storage medium having a computer program stored thereon, wherein the computer program is executed by a first processor to implement the steps of the method described in any one of claims 1 to 7; or; the computer program is executed by a second processor to implement the steps of the method described in any one of claims 8 to 14.

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