Multi-PRACH transmission configuration method and apparatus

Abstract

This disclosure discloses a method, apparatus, device, and storage medium for configuring multiple PRACH transmissions, belonging to the field of communication technology. The method includes sending a multiple PRACH transmission configuration to a terminal device, wherein the multiple PRACH transmission configuration indicates the multiplexing method used by the terminal device when transmitting multiple PRACHs; and receiving multiple PRACHs transmitted by the terminal device through the multiplexing method. This disclosure provides a processing method for a "multiple PRACH transmission configuration" scenario, enabling the terminal device to transmit multiple PRACHs over PRACH resources through the multiplexing method indicated by the multiple PRACH transmission configuration, thereby improving the coverage of the PRACH channel.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a method, apparatus, device and storage medium for configuring Physical Random Access Channel (PRACH) transmission. Background Technology

[0002] In communication systems, poor uplink coverage affects the communication quality between terminal devices and network-side devices. One of the factors affecting uplink coverage is the PRACH channel. In a single random access attempt, a terminal device can only send one initial message (Msg1) and does not involve multiple PRACH transmissions, resulting in poor PRACH channel coverage. Therefore, there is an urgent need for a "multi-PRACH transmission configuration" method to enable the terminal device to transmit multiple PRACH messages over PRACH resources using the multiplexing method indicated by the multi-PRACH transmission configuration, thereby improving PRACH channel coverage. Summary of the Invention

[0003] This disclosure presents a multi-PRACH transmission configuration method, apparatus, device, and storage medium, which enables a terminal device to transmit multiple PRACHs over PRACH resources through the multiplexing mode indicated by the multi-PRACH transmission configuration, thereby improving the coverage of the PRACH channel.

[0004] This disclosure provides a configuration method for multiple PRACH transmissions, which is executed by a network-side device. The method includes:

[0005] Send a multi-PRACH transmission configuration to the terminal device, wherein the multi-PRACH transmission configuration is used to indicate the multiplexing method adopted by the terminal device when sending multiple PRACHs;

[0006] Receive multiple PRACH messages sent by the terminal device through the multiplexing method.

[0007] Optionally, in one embodiment of this disclosure, the sending of multiple PRACH transmission configurations to the terminal device includes at least one of the following:

[0008] Send the TDM time division multiplexing configuration for multiple PRACH transmissions to the terminal device;

[0009] Send the FDM frequency division multiplexing configuration for the multiple PRACH transmission to the terminal device;

[0010] The TDM and FDM multiplexing configurations of the multi-PRACH transmission are sent to the terminal device.

[0011] Optionally, in one embodiment of this disclosure, the TDM multiplexing configuration for transmitting multiple PRACH transmissions to the terminal device includes at least one of the following:

[0012] Send the time-domain location configuration of the TDM multiplexing to the terminal device;

[0013] The frequency domain location configuration of the TDM multiplexing is sent to the terminal device.

[0014] Optionally, in one embodiment of this disclosure, the step of sending the time-domain location configuration of the TDM multiplexing to the terminal device includes at least one of the following:

[0015] Send the equally spaced time-domain location configurations of the TDM multiplexed Random Access Opportunity (RO) to the terminal device;

[0016] The location bitmap (BITMAP) is configured to be sent to the terminal device, wherein each bit of the BITMAP corresponds to a time-domain location of a RO.

[0017] Optionally, in one embodiment of this disclosure, sending the multiple PRACH transmission configuration to the terminal device includes:

[0018] Send the physical random access channel configuration index prach-ConfigurationIndex and / or random access SSB transmission template index ra-ssb-OccasionMaskIndex to the terminal device, wherein the prach-ConfigurationIndex carries the time-domain location configuration of the TDM multiplexing, and the ra-ssb-OccasionMaskIndex carries the time-domain location configuration of the TDM multiplexing.

[0019] Optionally, in one embodiment of this disclosure, the step of transmitting the frequency domain location configuration of the TDM multiplexing to the terminal device includes at least one of the following:

[0020] Send the configuration of the fixed frequency domain position of the TDM multiplexing to the terminal device;

[0021] The frequency domain position change configuration of the TDM multiplexing is sent to the terminal device.

[0022] Optionally, in one embodiment of this disclosure, the step of transmitting the frequency domain position change configuration of the TDM multiplexing to the terminal device includes at least one of the following:

[0023] The first frequency domain position change configuration of the TDM multiplexing is sent to the terminal device, wherein the first frequency domain position change configuration is used to indicate that the frequency domain position change is decreasing from the highest frequency domain position in the first frequency domain position set;

[0024] The second frequency domain position change configuration of the TDM multiplexing is sent to the terminal device, wherein the second frequency domain position change configuration is used to indicate that the frequency domain position change is incremented starting from the lowest frequency domain position in the first frequency domain position set;

[0025] Send the third frequency domain position change configuration of the TDM multiplexing to the terminal device, wherein the third frequency domain position change configuration is used to indicate that the frequency domain position change is to first configure the highest frequency domain position in the first frequency domain position set, then configure the lowest frequency domain position, configure the second highest frequency domain position, then configure the second lowest frequency domain position, and so on, until all frequency domain positions in the first frequency domain position set are configured.

[0026] The fourth frequency domain position change configuration of the TDM multiplexing is sent to the terminal device, wherein the fourth frequency domain position change configuration is used to indicate that the frequency domain position change is to first configure the lowest frequency domain position in the first frequency domain position set, then configure the highest frequency domain position, configure the second lowest frequency domain position, then configure the second highest frequency domain position, and so on, until all frequency domain positions are configured.

[0027] Optionally, in one embodiment of this disclosure, the FDM multiplexing configuration for transmitting the multiple PRACH transmissions to the terminal device includes at least one of the following:

[0028] Send a first multiple PRACH transmission configuration to the terminal device, wherein the first multiple PRACH transmission configuration is used to indicate that the multiplexing method is the FDM multiplexing mode;

[0029] Send the FDM multiplexing rule configuration to the terminal device;

[0030] Send FDM location configuration to the terminal device;

[0031] The time-domain location configuration of the RO for FDM multiplexing is sent to the terminal device.

[0032] Optionally, in one embodiment of this disclosure, the transmission of FDM location configuration to the terminal device includes at least one of the following:

[0033] Send the available FDM location BITMAP configuration to the terminal device;

[0034] Send the configuration of the starting position offset of the available FDM position to the terminal device;

[0035] The configuration of the interval between FDM locations is sent to the terminal device.

[0036] Optionally, in one embodiment of this disclosure, the time-domain location of the RO for transmitting FDM multiplexing is configured to the terminal device, including at least one of the following:

[0037] Send the equally spaced time-domain position configuration of the RO multiplexed by the FDM to the terminal device;

[0038] The location BITMAP configuration is sent to the terminal device, wherein each bit of the BITMAP corresponds to a time-domain location of a RO.

[0039] Optionally, in one embodiment of this disclosure, configuring the time-domain location of the RO for transmitting FDM multiplexing to the terminal device includes:

[0040] Send prach-ConfigurationIndex and / or ra-ssb-OccasionMaskIndex to the terminal device, wherein the prach-ConfigurationIndex carries the time-domain location configuration of the RO of the FDM multiplexing, and the ra-ssb-OccasionMaskIndex carries the time-domain location configuration of the RO of the FDM multiplexing.

[0041] Optionally, in one embodiment of this disclosure, the transmission of the TDM and FDM multiplexing configuration of the multi-PRACH transmission to the terminal device includes at least one of the following:

[0042] Send a second multiple PRACH transmission configuration to the terminal device, wherein the second multiple PRACH transmission configuration is used to indicate that the multiplexing method is the TDM and FDM multiplexing mode;

[0043] Send the time-domain location configuration of TDM multiplexing to the terminal device;

[0044] Send the frequency domain location configuration of FDM multiplexing to the terminal device;

[0045] The FDM multiplexing rule configuration is sent to the terminal device.

[0046] Optionally, in one embodiment of this disclosure, the time-domain location configuration of the TDM multiplexing includes at least one of the following:

[0047] The equidistant temporal location configuration of the ROs in the FDM multiplexing;

[0048] Location BITMAP configuration, wherein each bit of the BITMAP corresponds to the time domain location of a RO.

[0049] Optionally, in one embodiment of this disclosure, configuring the time-domain location of the transmitted FDM multiplexing to the terminal device includes:

[0050] Send prach-ConfigurationIndex and / or ra-ssb-OccasionMaskIndex to the terminal device, wherein the prach-ConfigurationIndex carries the time-domain location configuration of the RO of the FDM multiplexing, and the ra-ssb-OccasionMaskIndex carries the time-domain location configuration of the RO of the FDM multiplexing.

[0051] Optionally, in one embodiment of this disclosure, the frequency domain location configuration of the FDM multiplexing includes at least one of the following:

[0052] BITMAP configuration for available FDM locations;

[0053] Configuration of the starting position offset of the available FDM positions;

[0054] Interval configuration between FDM locations.

[0055] Optionally, in one embodiment of this disclosure, the step of transmitting the TDM and FDM multiplexing configuration of the multi-PRACH transmission to the terminal device includes:

[0056] The configuration of the number of multiple PRACH transmissions for FDM multiplexing is sent to the terminal device.

[0057] Optionally, in one embodiment of this disclosure, the FDM multiplexing multiple PRACH transmission quantity configuration is used to indicate that the FDM multiplexing multiple PRACH transmission quantity is the number of ROs of the FDM in the multiple PRACH configuration.

[0058] Optionally, in one embodiment of this disclosure, sending the multiple PRACH transmission configuration to the terminal device includes:

[0059] Send a multi-PRACH transmission configuration to the terminal device, wherein the multi-PRACH transmission configuration includes a first multi-PRACH transmission configuration based on non-contention-based random access CFRA and / or a second multi-PRACH transmission configuration based on contention-based random access CBRA.

[0060] Optionally, in one embodiment of this disclosure, the CFRA triggering method includes at least one of the following:

[0061] Physical downlink control channel (PDCCH) triggered;

[0062] Switch trigger;

[0063] Beam failure recovery trigger;

[0064] PScell ​​adds or changes triggers.

[0065] Optionally, in one embodiment of this disclosure, the step of sending multiple PRACH transmission configurations to the terminal device includes:

[0066] In response to the CFRA triggered by the PDCCH, a PDCCH order is sent to the terminal device, the PDCCH order carrying the first PRACH transmission configuration.

[0067] Optionally, in one embodiment of this disclosure, the step of sending multiple PRACH transmission configurations to the terminal device includes:

[0068] In response to the PScell ​​adding or changing the triggered CFRA, a dedicated random access configuration RACH-ConfigDedicated is sent to the terminal device, wherein the CFRA configuration of RACH-ConfigDedicated carries the first multiple PRACH transmission configuration.

[0069] Optionally, in one embodiment of this disclosure, the step of sending multiple PRACH transmission configurations to the terminal device includes:

[0070] In response to the CFRA triggered by the handover, RACH-ConfigDedicated is sent to the terminal device, wherein the CFRA configuration of RACH-ConfigDedicated carries the first multiple PRACH transport configuration.

[0071] Optionally, in one embodiment of this disclosure, the step of sending multiple PRACH transmission configurations to the terminal device includes:

[0072] In response to the CFRA triggered by the beam failure recovery, a beam failure recovery configuration BeamFailureRecoveryConfig is sent to the terminal device, wherein the BeamFailureRecoveryConfig carries the first multiple PRACH transmission configuration.

[0073] Optionally, in one embodiment of this disclosure, the step of sending multiple PRACH transmission configurations to the terminal device includes:

[0074] The second PRACH transmission configuration is sent to the terminal device via broadcast signaling or via dedicated signaling.

[0075] Optionally, in one embodiment of this disclosure, the broadcast signaling includes system message block 1SIB1.

[0076] Optionally, in one embodiment of this disclosure, the dedicated signaling includes at least one of the following:

[0077] Radio Resource Control (RRC) Reconfiguration message;

[0078] RRC resumes the RRCResume message;

[0079] RRC releases the RRCRelease message;

[0080] RRC establishes an RRCSetup message.

[0081] Optionally, in one embodiment of this disclosure, the step of sending multiple PRACH transmission configurations to the terminal device includes:

[0082] The common random access channel (RACH) configuration is sent to the terminal device, wherein the RACH configuration carries the second multiple PRACH transmission configuration.

[0083] Optionally, in one embodiment of this disclosure, the RACH configuration includes public RACH resources configured separately on each partial bandwidth BWP.

[0084] Optionally, in one embodiment of this disclosure, sending the RACH configuration to the terminal device includes:

[0085] The first random access common configuration RACH-ConfigCommon in the initial BWP configuration of SIB1 is sent to the terminal device, wherein the first RACH-ConfigCommon carries the RACH configuration.

[0086] Optionally, in one embodiment of this disclosure, sending the RACH configuration to the terminal device includes:

[0087] The second RACH-ConfigCommon of the BWP configuration, which sends the RRCReconfiguration message, is sent to the terminal device, wherein the second RACH-ConfigCommon carries the RACH configuration.

[0088] Optionally, in one embodiment of this disclosure, the step of sending multiple PRACH transmission configurations to the terminal device includes:

[0089] Send a dedicated RACH configuration to the terminal device, wherein the dedicated RACH configuration carries the second multiple RACH transmission configuration.

[0090] Optionally, in one embodiment of this disclosure, sending the dedicated RACH configuration to the terminal device includes:

[0091] In response to a CBRA triggered by beam failure recovery, a beam failure recovery configuration BeamFailureRecoveryConfig is sent to the terminal device, wherein the BeamFailureRecoveryConfig carries the second multi-PRACH transmission configuration configured in the dedicated RACH configuration.

[0092] Optionally, in one embodiment of this disclosure, sending the multiple PRACH transmission configuration to the terminal device includes:

[0093] In response to the addition or change of the CBRA triggered by the PScell, a dedicated random access configuration RACH-ConfigDedicated is sent to the terminal device, wherein the RACH-ConfigDedicated carries the second multiple PRACH transport configuration configured in the dedicated RACH configuration.

[0094] Optionally, in one embodiment of this disclosure, sending the multiple PRACH transmission configuration to the terminal device includes:

[0095] In response to a CBRA triggered by a handover, a RACH-ConfigDedicated is sent to the terminal device, wherein the RACH-ConfigDedicated carries the second multi-PRACH transport configuration configured in the dedicated RACH configuration.

[0096] Optionally, in one embodiment of this disclosure, sending the multiple PRACH transmission configuration to the terminal device includes:

[0097] The RACH configuration of the feature combination is sent to the terminal device, wherein the RACH configuration of the feature combination carries the second multiple PRACH transmission configuration.

[0098] Optionally, in one embodiment of this disclosure, the feature combination includes a Coverage Enhancement feature, wherein the Coverage Enhancement feature is used to indicate a Coverage Enhancement feature that supports multiple PRACH transmissions for the CBRA configuration.

[0099] Optionally, in one embodiment of this disclosure, the method further includes:

[0100] The terminal device receives PRACH capability information sent by the terminal device, wherein the PRACH capability information is used to indicate the capability information of the terminal device supporting multiplexing mode.

[0101] Optionally, in one embodiment of this disclosure, receiving the PRACH capability information sent by the terminal device includes:

[0102] The terminal device receives UECapabilityInformation, which carries the PRACH capability information.

[0103] Optionally, in one embodiment of this disclosure, the PRACH capability information includes at least one of the following:

[0104] PRACH capability information supporting FDM multi-PRACH transmission;

[0105] PRACH capability information supporting TDM multi-PRACH transmission;

[0106] PRACH capability information supporting PRACH transmission in both FDM and TDM;

[0107] PRACH capability information supporting FDM frequency hopping.

[0108] Optionally, in one embodiment of this disclosure, after receiving the PRACH capability information sent by the terminal device, the method further includes:

[0109] Based on the PRACH capability information, the multi-PRACH transmission configuration is configured for the terminal device via dedicated signaling.

[0110] Another embodiment of this disclosure proposes a configuration method for multiple PRACH transmissions, the method being executed by a terminal device, the method comprising:

[0111] The terminal device receives a multi-PRACH transmission configuration sent by a network-side device, wherein the multi-PRACH transmission configuration is used to indicate the multiplexing method adopted by the terminal device when sending multiple PRACHs;

[0112] Multiple PRACH messages are sent to the network-side device using the multiplexing method.

[0113] Optionally, in one embodiment of this disclosure, sending multiple PRACH messages to the network-side device via the multiplexing method includes at least one of the following:

[0114] The multiple PRACH messages are sent to the network-side device via TDM multiplexing.

[0115] The multiple PRACH messages are sent to the network-side device via FDM multiplexing.

[0116] The multiple PRACH messages are sent to the network-side device using the TDM and FDM multiplexing method.

[0117] Optionally, in one embodiment of this disclosure, before receiving the multi-PRACH transmission configuration sent by the network-side device, the method further includes:

[0118] Send PRACH capability information to the network-side device, wherein the PRACH capability information is used to indicate the capability information of the terminal device supporting multiplexing mode.

[0119] Optionally, in one embodiment of this disclosure, sending PRACH capability information to the network-side device includes:

[0120] Send UECapabilityInformation to the network-side device, wherein the UECapabilityInformation carries the PRACH capability information.

[0121] Optionally, in one embodiment of this disclosure, the PRACH capability information includes at least one of the following:

[0122] PRACH capability information supporting FDM multi-PRACH transmission;

[0123] PRACH capability information supporting TDM multi-PRACH transmission;

[0124] PRACH capability information supporting PRACH transmission in both FDM and TDM;

[0125] PRACH capability information supporting FDM frequency hopping.

[0126] Another aspect of this disclosure provides a multi-PRACH transmission configuration apparatus, the apparatus comprising:

[0127] A sending module is used to send a multi-PRACH transmission configuration to a terminal device, wherein the multi-PRACH transmission configuration is used to instruct the terminal device to send the SSB usage mode corresponding to the PRACH resources used for multiple PRACH transmissions according to the multi-PRACH transmission configuration;

[0128] A receiving module is used to receive multiple PRACH messages transmitted by the terminal device over the PRACH resource through the SSB usage mode.

[0129] Another aspect of this disclosure provides a multi-PRACH transmission configuration apparatus, the apparatus comprising:

[0130] The receiving module is used to receive a multi-PRACH transmission configuration sent by a network-side device, wherein the multi-PRACH transmission configuration is used to indicate the multiplexing method adopted by the terminal device when sending multiple PRACHs;

[0131] The sending module is used to send multiple PRACH messages to the network-side device via the multiplexing method.

[0132] Another aspect of this disclosure provides a terminal device, the device including a processor and a memory, the memory storing a computer program, the processor executing the computer program stored in the memory to cause the device to perform the method as described in the preceding aspect of the embodiment.

[0133] Another aspect of this disclosure provides a network-side device, the device including a processor and a memory, the memory storing a computer program, the processor executing the computer program stored in the memory to cause the device to perform the method proposed in the other aspect of the above disclosure.

[0134] Another aspect of this disclosure provides a communication device, comprising: a processor and an interface circuit;

[0135] The interface circuit is used to receive code instructions and transmit them to the processor;

[0136] The processor is configured to run the code instructions to perform the method as proposed in one aspect of the embodiments.

[0137] Another aspect of this disclosure provides a communication device, comprising: a processor and an interface circuit;

[0138] The interface circuit is used to receive code instructions and transmit them to the processor;

[0139] The processor is configured to run the code instructions to perform the method as proposed in another embodiment.

[0140] Another aspect of this disclosure provides a computer-readable storage medium for storing instructions that, when executed, cause the method described in one aspect of the disclosure to be implemented.

[0141] Another aspect of this disclosure provides a computer-readable storage medium for storing instructions that, when executed, cause the method as described in another aspect of this disclosure to be implemented.

[0142] In summary, in the embodiments of this disclosure, a multi-PRACH transmission configuration is sent to the terminal device, wherein the multi-PRACH transmission configuration is used to indicate the multiplexing method adopted by the terminal device when transmitting multiple PRACHs; and the terminal device receives multiple PRACHs transmitted by the terminal device through the multiplexing method. In the embodiments of this disclosure, the network-side device can send a multi-PRACH transmission configuration to the terminal device, so that the terminal device can transmit multiple PRACHs on PRACH resources through the multiplexing method indicated by the multi-PRACH transmission configuration, reducing the situation where multiple PRACHs cannot be transmitted, and improving the probability of successful random access. This disclosure provides a processing method for a "multi-PRACH transmission configuration" scenario, so that the terminal device can transmit multiple PRACHs on PRACH resources through the multiplexing method indicated by the multi-PRACH transmission configuration, thereby improving the coverage of the PRACH channel. Attached Figure Description

[0143] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0144] Figure 1 This is a flowchart illustrating a multi-PRACH transport configuration method provided in one embodiment of the present disclosure;

[0145] Figure 2 A flowchart illustrating a multi-PRACH transport configuration method provided in another embodiment of this disclosure;

[0146] Figure 3 This is a flowchart illustrating a multi-PRACH transport configuration method provided in another embodiment of the present disclosure;

[0147] Figure 4 A flowchart illustrating a multi-PRACH transport configuration method provided in yet another embodiment of this disclosure;

[0148] Figure 5 A flowchart illustrating a multi-PRACH transport configuration method provided in yet another embodiment of this disclosure;

[0149] Figure 6 A flowchart illustrating a multi-PRACH transport configuration method provided in yet another embodiment of this disclosure;

[0150] Figure 7 A flowchart illustrating a multi-PRACH transport configuration method provided in yet another embodiment of this disclosure;

[0151] Figure 8 A flowchart illustrating a multi-PRACH transport configuration method provided in yet another embodiment of this disclosure;

[0152] Figure 9 A flowchart illustrating a multi-PRACH transport configuration method provided in yet another embodiment of this disclosure;

[0153] Figure 10 A flowchart illustrating a multi-PRACH transport configuration method provided in yet another embodiment of this disclosure;

[0154] Figure 11 A flowchart illustrating a multi-PRACH transport configuration method provided in yet another embodiment of this disclosure;

[0155] Figure 12 A flowchart illustrating a multi-PRACH transport configuration method provided in yet another embodiment of this disclosure;

[0156] Figure 13 A flowchart illustrating a multi-PRACH transport configuration method provided in yet another embodiment of this disclosure;

[0157] Figure 14 A flowchart illustrating a multi-PRACH transport configuration method provided in yet another embodiment of this disclosure;

[0158] Figure 15 A flowchart illustrating a multi-PRACH transport configuration method provided in yet another embodiment of this disclosure;

[0159] Figure 16 A flowchart illustrating a multi-PRACH transport configuration method provided in yet another embodiment of this disclosure;

[0160] Figure 17 A flowchart illustrating a multi-PRACH transport configuration method provided in yet another embodiment of this disclosure;

[0161] Figure 18 A flowchart illustrating a multi-PRACH transport configuration method provided in yet another embodiment of this disclosure;

[0162] Figure 19A flowchart illustrating a multi-PRACH transport configuration method provided in yet another embodiment of this disclosure;

[0163] Figure 20 A flowchart illustrating a multi-PRACH transport configuration method provided in yet another embodiment of this disclosure;

[0164] Figure 21 A flowchart illustrating a multi-PRACH transport configuration method provided in yet another embodiment of this disclosure;

[0165] Figure 22 This is a schematic diagram of the structure of a multi-PRACH transmission configuration device provided in one embodiment of the present disclosure;

[0166] Figure 23 This is a schematic diagram of a multi-PRACH transmission configuration device provided in another embodiment of the present disclosure;

[0167] Figure 24 This is a block diagram of a terminal device provided in one embodiment of the present disclosure;

[0168] Figure 25 This is a block diagram of a network-side device provided in one embodiment of the present disclosure. Detailed Implementation

[0169] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with those of this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the embodiments of this disclosure as detailed in the appended claims.

[0170] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. The singular forms “a” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0171] It should be understood that although the terms first, second, third, etc., may be used to describe various information in embodiments of this disclosure, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, first information may also be referred to as second information without departing from the scope of embodiments of this disclosure, and similarly, second information may also be referred to as first information. Depending on the context, the words “if” and “suppose” as used herein may be interpreted as “when”, “when”, or “in response to a determination”.

[0172] The network elements or network functions involved in the embodiments of this disclosure can be implemented by independent hardware devices or by software in hardware devices. This disclosure does not limit this.

[0173] The following describes in detail, with reference to the accompanying drawings, a multi-PRACH transmission configuration method, apparatus, device, and storage medium provided in the embodiments of this disclosure.

[0174] Figure 1 This is a flowchart illustrating a multi-PRACH transport configuration method provided in an embodiment of this disclosure. The method is executed by a network-side device, such as... Figure 1 As shown, the method may include the following steps:

[0175] Step 101: Send the multi-PRACH transmission configuration to the terminal device, wherein the multi-PRACH transmission configuration is used to indicate the multiplexing method adopted by the terminal device when sending multiple PRACHs;

[0176] Step 102: Receive multiple PRACH messages sent by the receiving terminal device via multiplexing.

[0177] It should be noted that, in one embodiment of this disclosure, the terminal device can be a device that provides voice and / or data connectivity to a user. The terminal device can communicate with one or more core networks via a RAN (Radio Access Network). The terminal device can be an Internet of Things (IoT) terminal, such as a sensor device, a mobile phone (or "cellular" phone), and a computer with an IoT terminal. For example, it can be a fixed, portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted device. Examples include a station (STA), subscriber unit, subscriber station, mobile station, mobile station, remote station, access point, remote terminal, access terminal, user terminal, or user agent. Alternatively, the terminal device can also be a device from an unmanned aerial vehicle (UAV). Alternatively, the terminal device can also be a vehicle-mounted device, such as a vehicle computer with wireless communication capabilities, or a wireless terminal connected to an external vehicle computer. Alternatively, the terminal device can also be a roadside device, such as a street light, traffic light, or other roadside device with wireless communication capabilities.

[0178] In one embodiment of this disclosure, when the terminal device sends a preamble, it can perform a preamble time-domain repetition, that is, send multiple preambles continuously in the time domain. Here, a single PRACH transmission refers to transmitting multiple preambles continuously as a whole, and multiple PRACH transmissions refer to performing multiple PRACH transmissions.

[0179] In one embodiment of this disclosure, sending multiple PRACH transmission configurations to the terminal device includes at least one of the following:

[0180] Send the TDM time-division multiplexing configuration for multiple PRACH transmissions to the terminal device;

[0181] Send the FDM (Frequency Division Multiplexing) configuration for multiple PRACH transmissions to the terminal device;

[0182] Send TDM and FDM multiplexing configurations for multiple PRACH transmissions to the terminal device.

[0183] Furthermore, in one embodiment of this disclosure, transmitting a TDM multiplexing configuration for multiple PRACH transmissions to the terminal device includes at least one of the following:

[0184] Send the time-domain location configuration of TDM multiplexing to the terminal device;

[0185] Send the frequency domain location configuration of TDM multiplexing to the terminal device.

[0186] Furthermore, in one embodiment of this disclosure, transmitting the time-domain location configuration of TDM multiplexing to the terminal device includes at least one of the following:

[0187] Send the time-domain location configuration of the random access opportunity (RO) of TDM multiplexing to the terminal device at equal intervals;

[0188] Send the location bitmap configuration to the terminal device, where each bit of the bitmap corresponds to the time domain location of a RO.

[0189] Furthermore, in one embodiment of this disclosure, sending a multi-PRACH transmission configuration to the terminal device includes:

[0190] Send the physical random access channel configuration index prach-ConfigurationIndex and / or random access SSB transmission template index ra-ssb-OccasionMaskIndex to the terminal device, wherein prach-ConfigurationIndex carries the time-domain location configuration of TDM multiplexing, and ra-ssb-OccasionMaskIndex carries the time-domain location configuration of TDM multiplexing.

[0191] Furthermore, in one embodiment of this disclosure, the frequency domain location configuration for transmitting TDM multiplexing to the terminal device includes at least one of the following:

[0192] Send the configuration of the fixed frequency domain position of TDM multiplexing to the terminal device;

[0193] Send the frequency domain position change configuration of TDM multiplexing to the terminal device.

[0194] Furthermore, in one embodiment of this disclosure, transmitting the frequency domain position change configuration of TDM multiplexing to the terminal device includes at least one of the following:

[0195] The first frequency domain position change configuration of TDM multiplexing is sent to the terminal device, wherein the first frequency domain position change configuration is used to indicate that the frequency domain position change is decreasing from the highest frequency domain position in the first frequency domain position set;

[0196] The second frequency domain position change configuration of TDM multiplexing is sent to the terminal device, wherein the second frequency domain position change configuration is used to indicate that the frequency domain position change is incremented starting from the lowest frequency domain position in the first frequency domain position set;

[0197] Send the third frequency domain position change configuration of TDM multiplexing to the terminal device. The third frequency domain position change configuration is used to indicate that the frequency domain position change is to first configure the highest frequency domain position in the first frequency domain position set, then configure the lowest frequency domain position, configure the second highest frequency domain position, then configure the second lowest frequency domain position, and so on, until all frequency domain positions in the first frequency domain position set are configured.

[0198] The fourth frequency domain position change configuration of TDM multiplexing is sent to the terminal device. The fourth frequency domain position change configuration is used to indicate that the frequency domain position change is to first configure the lowest frequency domain position in the first frequency domain position set, then configure the highest frequency domain position, configure the second lowest frequency domain position, then configure the second highest frequency domain position, and so on, until all frequency domain positions are configured.

[0199] Furthermore, in one embodiment of this disclosure, transmitting an FDM multiplexing configuration for multiple PRACH transmissions to a terminal device includes at least one of the following:

[0200] Send a first multiple PRACH transmission configuration to the terminal device, wherein the first multiple PRACH transmission configuration is used to indicate that the multiplexing mode is FDM multiplexing mode;

[0201] Send the FDM multiplexing rule configuration to the terminal device;

[0202] Send FDM location configuration to the terminal device;

[0203] Send the time-domain location configuration of the RO (Redirection) of the FDM multiplexing to the terminal device.

[0204] Furthermore, in one embodiment of this disclosure, sending FDM location configuration to the terminal device includes at least one of the following:

[0205] Send the available FDM location BITMAP configuration to the terminal device;

[0206] Send the configuration of the starting position offset of the available FDM positions to the terminal device;

[0207] Send the configuration of the interval between FDM locations to the terminal device.

[0208] Furthermore, in one embodiment of this disclosure, the time-domain location configuration of the RO for FDM multiplexing is sent to the terminal device, including at least one of the following:

[0209] Send the FDM multiplexed RO's equally spaced time-domain position configuration to the terminal device;

[0210] The location BITMAP configuration is sent to the terminal device, where each bit of the BITMAP corresponds to the time domain location of a RO.

[0211] Furthermore, in one embodiment of this disclosure, transmitting the time-domain location configuration of the FDM multiplexed RO to the terminal device includes:

[0212] Send prach-ConfigurationIndex and / or ra-ssb-OccasionMaskIndex to the terminal device, wherein prach-ConfigurationIndex carries the time-domain location configuration of the RO for FDM multiplexing, and ra-ssb-OccasionMaskIndex carries the time-domain location configuration of the RO for FDM multiplexing.

[0213] Furthermore, in one embodiment of this disclosure, transmitting a TDM and FDM multiplexing configuration for multi-PRACH transmission to the terminal device includes at least one of the following:

[0214] Send a second multiple PRACH transmission configuration to the terminal device, wherein the second multiple PRACH transmission configuration is used to indicate that the multiplexing mode is TDM and FDM multiplexing mode;

[0215] Send the time-domain location configuration of the FDM multiplexing to the terminal device;

[0216] Send the frequency domain location configuration of FDM multiplexing to the terminal device;

[0217] Send the FDM multiplexing rule configuration to the terminal device.

[0218] Furthermore, in one embodiment of this disclosure, the time-domain location configuration for TDM multiplexing includes at least one of the following:

[0219] Equal-interval time-domain location configuration of ROs in FDM multiplexing;

[0220] Location BITMAP configuration, where each bit of the BITMAP corresponds to the time domain location of a RO.

[0221] Furthermore, in one embodiment of this disclosure, transmitting the time-domain location configuration of FDM multiplexing to the terminal device includes:

[0222] Send prach-ConfigurationIndex and / or ra-ssb-OccasionMaskIndex to the terminal device, wherein prach-ConfigurationIndex carries the time-domain location configuration of the RO for FDM multiplexing, and ra-ssb-OccasionMaskIndex carries the time-domain location configuration of the RO for FDM multiplexing.

[0223] Furthermore, in one embodiment of this disclosure, the frequency domain location configuration of FDM multiplexing includes at least one of the following:

[0224] BITMAP configuration for available FDM locations;

[0225] Configuration of the starting position offset of the available FDM positions;

[0226] Interval configuration between FDM locations.

[0227] Furthermore, in one embodiment of this disclosure, transmitting a TDM and FDM multiplexing configuration for multiple PRACH transmissions to the terminal device includes:

[0228] Configure the number of FDM multiplexed PRACH transmissions to the terminal device.

[0229] Furthermore, in one embodiment of this disclosure, the FDM multiplexing multiple PRACH transmission quantity configuration is used to indicate the FDM multiplexing multiple PRACH transmission quantity as the number of ROs of FDM in the multiple PRACH configuration.

[0230] Furthermore, in one embodiment of this disclosure, sending a multi-PRACH transmission configuration to the terminal device includes:

[0231] Send multiple PRACH transmission configurations to the terminal device, wherein the multiple PRACH transmission configurations include a first multiple PRACH transmission configuration based on non-contention-based random access CFRA and / or a second multiple PRACH transmission configuration based on contention-based random access CBRA.

[0232] Furthermore, in one embodiment of this disclosure, the CFRA triggering method includes at least one of the following:

[0233] Physical downlink control channel (PDCCH) triggered;

[0234] Switch trigger;

[0235] Beam failure recovery trigger;

[0236] PScell ​​adds or changes triggers.

[0237] Furthermore, in one embodiment of this disclosure, sending a multi-PRACH transmission configuration to the terminal device includes:

[0238] In response to the CFRA triggered by the PDCCH, a PDCCH order is sent to the terminal device. The PDCCH order carries the first PRACH transmission configuration.

[0239] Furthermore, in one embodiment of this disclosure, sending a multi-PRACH transmission configuration to the terminal device includes:

[0240] In response to the addition or change of the CFRA triggered by the PScell, a dedicated random access configuration RACH-ConfigDedicated is sent to the terminal device, wherein the CFRA configuration of RACH-ConfigDedicated carries the first multiple PRACH transport configuration.

[0241] Furthermore, in one embodiment of this disclosure, sending a multi-PRACH transmission configuration to the terminal device includes:

[0242] In response to a CFRA triggered by a handover, RACH-ConfigDedicated is sent to the end device, wherein the CFRA configuration of RACH-ConfigDedicated carries the first multiple PRACH transport configuration.

[0243] Furthermore, in one embodiment of this disclosure, sending a multi-PRACH transmission configuration to the terminal device includes:

[0244] In response to a CFRA triggered by beam failure recovery, a beam failure recovery configuration BeamFailureRecoveryConfig is sent to the terminal device, wherein BeamFailureRecoveryConfig carries a first multiple PRACH transmission configuration.

[0245] Furthermore, in one embodiment of this disclosure, sending a multi-PRACH transmission configuration to the terminal device includes:

[0246] The second PRACH transmission configuration is sent to the terminal device via broadcast signaling or via dedicated signaling.

[0247] Furthermore, in one embodiment of this disclosure, the broadcast signaling includes system message block 1SIB1.

[0248] Furthermore, in one embodiment of this disclosure, the dedicated signaling includes at least one of the following:

[0249] Radio Resource Control (RRC) Reconfiguration message;

[0250] RRC resumes the RRCResume message;

[0251] RRC releases the RRCRelease message;

[0252] RRC establishes an RRCSetup message.

[0253] Furthermore, in one embodiment of this disclosure, sending a multi-PRACH transmission configuration to the terminal device includes:

[0254] Send the Common Random Access Channel (RACH) configuration to the terminal device, wherein the RACH configuration carries the second PRACH transmission configuration.

[0255] Furthermore, in one embodiment of this disclosure, the RACH configuration includes public RACH resources configured separately on each portion bandwidth BWP.

[0256] Furthermore, in one embodiment of this disclosure, sending RACH configuration to the terminal device includes:

[0257] Send the first random access common configuration RACH-ConfigCommon from the initial BWP configuration of SIB1 to the terminal device, wherein the first RACH-ConfigCommon carries the RACH configuration.

[0258] Furthermore, in one embodiment of this disclosure, sending RACH configuration to the terminal device includes:

[0259] The second RACH-ConfigCommon of the BWP configuration is sent to the terminal device via the RRCReconfiguration message, wherein the second RACH-ConfigCommon carries the RACH configuration.

[0260] Furthermore, in one embodiment of this disclosure, sending a multi-PRACH transmission configuration to the terminal device includes:

[0261] Send a dedicated RACH configuration to the terminal device, wherein the dedicated RACH configuration carries a second PRACH transmission configuration.

[0262] Furthermore, in one embodiment of this disclosure, sending a dedicated RACH configuration to the terminal device includes:

[0263] In response to a CBRA triggered by beam failure recovery, a beam failure recovery configuration BeamFailureRecoveryConfig is sent to the terminal device, wherein BeamFailureRecoveryConfig carries the second multi-PRACH transport configuration configured in the dedicated RACH configuration.

[0264] Furthermore, in one embodiment of this disclosure, sending a multi-PRACH transmission configuration to the terminal device includes:

[0265] In response to a CBRA triggered by an addition or change in the PScell, a dedicated random access configuration RACH-ConfigDedicated is sent to the terminal device, wherein RACH-ConfigDedicated carries the second multiple PRACH transport configuration configured in the dedicated RACH configuration.

[0266] Furthermore, in one embodiment of this disclosure, sending a multi-PRACH transmission configuration to the terminal device includes:

[0267] In response to a CBRA triggered by a handover, RACH-ConfigDedicated is sent to the end device, wherein RACH-ConfigDedicated carries the second multiple PRACH transport configuration configured in the dedicated RACH configuration.

[0268] Furthermore, in one embodiment of this disclosure, sending a multi-PRACH transmission configuration to the terminal device includes:

[0269] The RACH configuration of the feature combination is sent to the terminal device, wherein the RACH configuration of the feature combination carries a second PRACH transmission configuration.

[0270] Furthermore, in one embodiment of this disclosure, the feature combination includes a Coverage Enhancement feature, wherein the Coverage Enhancement feature is used to indicate a Coverage Enhancement feature that supports multiple PRACH transmissions configured for CBRA.

[0271] Furthermore, in one embodiment of this disclosure, the method further includes:

[0272] Receive PRACH capability information sent by the terminal device, wherein the PRACH capability information is used to indicate the terminal device's ability to support multiplexing methods.

[0273] Furthermore, in one embodiment of this disclosure, receiving PRACH capability information sent by the terminal device includes:

[0274] The terminal device receives UECapabilityInformation, which carries PRACH capability information.

[0275] Furthermore, in one embodiment of this disclosure, the PRACH capability information includes at least one of the following:

[0276] PRACH capability information supporting FDM multi-PRACH transmission;

[0277] PRACH capability information supporting TDM multi-PRACH transmission;

[0278] PRACH capability information supporting PRACH transmission in both FDM and TDM;

[0279] PRACH capability information supporting FDM frequency hopping.

[0280] Furthermore, in one embodiment of this disclosure, after receiving the PRACH capability information sent by the terminal device, the method further includes:

[0281] Based on PRACH capability information, multiple PRACH transmission configurations are configured for terminal devices through dedicated signaling.

[0282] In summary, in the embodiments of this disclosure, a multi-PRACH transmission configuration is sent to the terminal device, wherein the multi-PRACH transmission configuration is used to indicate the multiplexing method adopted by the terminal device when transmitting multiple PRACHs; and the terminal device receives multiple PRACHs transmitted by the terminal device through the multiplexing method. In the embodiments of this disclosure, the network-side device can send a multi-PRACH transmission configuration to the terminal device, so that the terminal device can transmit multiple PRACHs on PRACH resources through the multiplexing method indicated by the multi-PRACH transmission configuration, reducing the situation where multiple PRACHs cannot be transmitted, and improving the probability of successful random access. This disclosure provides a processing method for a "multi-PRACH transmission configuration" scenario, so that the terminal device can transmit multiple PRACHs on PRACH resources through the multiplexing method indicated by the multi-PRACH transmission configuration, thereby improving the coverage of the PRACH channel.

[0283] Figure 2 This is a flowchart illustrating a multi-PRACH transport configuration method provided in an embodiment of this disclosure. The method is executed by a network-side device, such as... Figure 2 As shown, the method may include the following steps:

[0284] Step 201: Send the TDM time division multiplexing configuration for multiple PRACH transmission to the terminal device, wherein the multiple PRACH transmission configuration is used to indicate the multiplexing method adopted by the terminal device when transmitting multiple PRACH.

[0285] Sending multiple PRACH transmission configurations to the terminal device includes at least one of the following:

[0286] Send the TDM time-division multiplexing configuration for multiple PRACH transmissions to the terminal device;

[0287] Send the FDM (Frequency Division Multiplexing) configuration for multiple PRACH transmissions to the terminal device;

[0288] Send TDM and FDM multiplexing configurations for multiple PRACH transmissions to the terminal device.

[0289] Furthermore, in one embodiment of this disclosure, transmitting a TDM multiplexing configuration for multiple PRACH transmissions to the terminal device includes at least one of the following:

[0290] Send the time-domain location configuration of TDM multiplexing to the terminal device;

[0291] Send the frequency domain location configuration of TDM multiplexing to the terminal device.

[0292] Step 202: Receive multiple PRACH messages sent by the terminal device via TDM multiplexing.

[0293] In summary, in the embodiments of this disclosure, a TDM (Time Division Multiplexing) configuration for multiple PRACH transmission is sent to the terminal device. This multiple PRACH transmission configuration instructs the terminal device on the multiplexing method used when transmitting multiple PRACHs, and receives multiple PRACHs transmitted by the terminal device via TDM multiplexing. In these embodiments, the network-side device can send the TDM configuration to the terminal device, enabling the terminal device to transmit multiple PRACHs over PRACH resources via TDM multiplexing, reducing the likelihood of multiple PRACHs being unable to be transmitted and improving the probability of successful random access. This disclosure provides a processing method for a "multiple PRACH transmission configuration" scenario, enabling the terminal device to transmit multiple PRACHs over PRACH resources via the multiplexing method indicated by the multiple PRACH transmission configuration, thereby improving PRACH channel coverage.

[0294] Figure 3 This is a flowchart illustrating a multi-PRACH transport configuration method provided in an embodiment of this disclosure. The method is executed by a network-side device, such as... Figure 3 As shown, the method may include the following steps, wherein one of steps 301 and 302 is performed:

[0295] Step 301: Send the time-domain location configuration of TDM multiplexing to the terminal device;

[0296] In one embodiment of this disclosure, the time-domain location configuration for transmitting TDM multiplexing to the terminal device includes at least one of the following:

[0297] Send the time-domain location configuration of the random access opportunity (RO) of TDM multiplexing to the terminal device at equal intervals;

[0298] Send the location bitmap configuration to the terminal device, where each bit of the bitmap corresponds to the time domain location of a RO.

[0299] Step 302: Send the frequency domain location configuration for TDM multiplexing to the terminal device;

[0300] Step 303: Receive multiple PRACH messages sent by the terminal device via TDM multiplexing.

[0301] In summary, in the embodiments of this disclosure, a TDM (Time Division Multiplexing) configuration for multiple PRACH transmission is sent to the terminal device. This multiple PRACH transmission configuration instructs the terminal device on the multiplexing method used when transmitting multiple PRACHs, and receives multiple PRACHs transmitted by the terminal device via TDM multiplexing. In these embodiments, the network-side device can send the TDM configuration to the terminal device, enabling the terminal device to transmit multiple PRACHs over PRACH resources via TDM multiplexing, reducing the likelihood of multiple PRACHs being unable to be transmitted and improving the probability of successful random access. This disclosure specifically discloses the details of the TDM configuration for multiple PRACH transmission. This disclosure provides a processing method for a "multiple PRACH transmission configuration" scenario, enabling the terminal device to transmit multiple PRACHs over PRACH resources via the multiplexing method indicated by the multiple PRACH transmission configuration, thereby improving PRACH channel coverage.

[0302] Figure 4 This is a flowchart illustrating a multi-PRACH transport configuration method provided in an embodiment of this disclosure. The method is executed by a network-side device, such as... Figure 4 As shown, the method may include the following steps:

[0303] Step 401: Send prach-ConfigurationIndex and / or ra-ssb-OccasionMaskIndex to the terminal device. The multi-PRACH transmission configuration is used to indicate the multiplexing method adopted by the terminal device when sending multiple PRACHs. The prach-ConfigurationIndex carries the time-domain location configuration of TDM multiplexing, and the ra-ssb-OccasionMaskIndex carries the time-domain location configuration of TDM multiplexing.

[0304] Step 402: Receive multiple PRACH messages sent by the terminal device via TDM multiplexing.

[0305] In summary, in the embodiments of this disclosure, prach-ConfigurationIndex and / or ra-ssb-OccasionMaskIndex are sent to the terminal device, and multiple PRACHs are received from the terminal device via TDM multiplexing. In these embodiments, the network-side device can send TDM time-division multiplexing configurations to the terminal device via prach-ConfigurationIndex and / or ra-ssb-OccasionMaskIndex, enabling the terminal device to transmit multiple PRACHs over PRACH resources via TDM multiplexing, reducing the possibility of multiple PRACHs not being transmitted and improving the probability of successful random access. This disclosure provides a processing method for a "multiple PRACH transmission configuration" scenario, enabling the terminal device to transmit multiple PRACHs over PRACH resources via the multiplexing method indicated by the multiple PRACH transmission configuration, thereby improving PRACH channel coverage.

[0306] Figure 5 This is a flowchart illustrating a multi-PRACH transport configuration method provided in an embodiment of this disclosure. The method is executed by a network-side device, such as... Figure 5 As shown, the method may include the following steps, wherein one of steps 501 and 502 is performed:

[0307] Step 501: Send the configuration of the fixed frequency domain position of TDM multiplexing to the terminal device;

[0308] Step 502: Send the TDM multiplexing frequency domain position change configuration to the terminal device;

[0309] In one embodiment of this disclosure, transmitting the frequency domain position change configuration of TDM multiplexing to the terminal device includes at least one of the following:

[0310] The first frequency domain position change configuration of TDM multiplexing is sent to the terminal device, wherein the first frequency domain position change configuration is used to indicate that the frequency domain position change is decreasing from the highest frequency domain position in the first frequency domain position set;

[0311] The second frequency domain position change configuration of TDM multiplexing is sent to the terminal device, wherein the second frequency domain position change configuration is used to indicate that the frequency domain position change is incremented starting from the lowest frequency domain position in the first frequency domain position set;

[0312] Send the third frequency domain position change configuration of TDM multiplexing to the terminal device. The third frequency domain position change configuration is used to indicate that the frequency domain position change is to first configure the highest frequency domain position in the first frequency domain position set, then configure the lowest frequency domain position, configure the second highest frequency domain position, then configure the second lowest frequency domain position, and so on, until all frequency domain positions in the first frequency domain position set are configured.

[0313] The fourth frequency domain position change configuration of TDM multiplexing is sent to the terminal device. The fourth frequency domain position change configuration is used to indicate that the frequency domain position change is to first configure the lowest frequency domain position in the first frequency domain position set, then configure the highest frequency domain position, configure the second lowest frequency domain position, then configure the second highest frequency domain position, and so on, until all frequency domain positions are configured.

[0314] For example, in one embodiment of this disclosure, the terms "first," "second," "third," and "fourth" are merely used to indicate different configurations for frequency domain position changes. The first frequency domain position change configuration does not specifically refer to a fixed frequency domain position change configuration. For instance, when the highest frequency domain position in the first frequency domain position set changes, the first frequency domain position change configuration may also change accordingly. The step size corresponding to the first frequency domain position change configuration can be 1, 2, or other values.

[0315] For example, in one embodiment of this disclosure, the frequency domain position change configuration of the second frequency domain does not specifically refer to a fixed frequency domain position change configuration. For instance, when the lowest frequency domain position in the second frequency domain position set changes, the second frequency domain position change configuration can also change accordingly. The step size corresponding to the second frequency domain position change configuration can be 1, 2, or other values.

[0316] Step 503: Receive multiple PRACH messages sent by the terminal device via TDM multiplexing.

[0317] In summary, in the embodiments of this disclosure, a TDM time-division multiplexing configuration for multiple PRACH transmission is sent to the terminal device. This multiple PRACH transmission configuration instructs the terminal device on the multiplexing method used when transmitting multiple PRACHs, and receives multiple PRACHs transmitted by the terminal device via TDM multiplexing. In these embodiments, the network-side device can send the TDM time-division multiplexing configuration to the terminal device, enabling the terminal device to transmit multiple PRACHs over PRACH resources via TDM multiplexing, reducing the likelihood of multiple PRACHs being unable to be transmitted and improving the probability of successful random access. Specifically, this disclosure discloses a TDM time-division multiplexing configuration for multiple PRACH transmission, including a fixed frequency domain position for TDM multiplexing and a frequency domain position variation configuration for TDM multiplexing. This disclosure provides a processing method for a "multiple PRACH transmission configuration" scenario, enabling the terminal device to transmit multiple PRACHs over PRACH resources via the multiplexing method indicated by the multiple PRACH transmission configuration, thereby improving PRACH channel coverage.

[0318] Figure 6This is a flowchart illustrating a multi-PRACH transport configuration method provided in an embodiment of this disclosure. The method is executed by a network-side device, such as... Figure 6 As shown, the method may include the following steps:

[0319] Step 601: Send the FDM multiplexing configuration for multiple PRACH transmissions to the terminal device;

[0320] In one embodiment of this disclosure, transmitting the FDM multiplexing configuration for multiple PRACH transmissions to the terminal device includes at least one of the following:

[0321] Send a first multiple PRACH transmission configuration to the terminal device, wherein the first multiple PRACH transmission configuration is used to indicate that the multiplexing mode is FDM multiplexing mode;

[0322] Send the FDM multiplexing rule configuration to the terminal device;

[0323] Send FDM location configuration to the terminal device;

[0324] Send the time-domain location configuration of the RO (Redirection) of the FDM multiplexing to the terminal device.

[0325] Furthermore, in one embodiment of this disclosure, sending FDM location configuration to the terminal device includes at least one of the following:

[0326] Send the available FDM location BITMAP configuration to the terminal device;

[0327] Send the configuration of the starting position offset of the available FDM positions to the terminal device;

[0328] Send the configuration of the interval between FDM locations to the terminal device.

[0329] Furthermore, in one embodiment of this disclosure, the time-domain location configuration of the RO for FDM multiplexing is sent to the terminal device, including at least one of the following:

[0330] Send the FDM multiplexed RO's equally spaced time-domain position configuration to the terminal device;

[0331] The location BITMAP configuration is sent to the terminal device, where each bit of the BITMAP corresponds to the time domain location of a RO.

[0332] Furthermore, in one embodiment of this disclosure, transmitting the time-domain location configuration of the FDM multiplexed RO to the terminal device includes:

[0333] Send prach-ConfigurationIndex and / or ra-ssb-OccasionMaskIndex to the terminal device, wherein prach-ConfigurationIndex carries the time-domain location configuration of the RO for FDM multiplexing, and ra-ssb-OccasionMaskIndex carries the time-domain location configuration of the RO for FDM multiplexing.

[0334] In one embodiment of this disclosure, sending FDM multiplexing rule configuration to the terminal device includes at least one of the following:

[0335] Send the fifth frequency domain position change configuration of FDM multiplexing to the terminal device, wherein the fifth frequency domain position change configuration is used to indicate that the frequency domain position change is decreasing from the highest frequency domain position in the second frequency domain position set;

[0336] The sixth frequency domain position change configuration of FDM multiplexing is sent to the terminal device, wherein the sixth frequency domain position change configuration is used to indicate that the frequency domain position change is incremented starting from the lowest frequency domain position in the second frequency domain position set;

[0337] Send the seventh frequency domain position change configuration of FDM multiplexing to the terminal device. The seventh frequency domain position change configuration is used to indicate that the frequency domain position change is to first configure the highest frequency domain position in the second frequency domain position set, then configure the lowest frequency domain position, configure the second highest frequency domain position, then configure the second lowest frequency domain position, and so on, until all frequency domain positions in the second frequency domain position set are configured.

[0338] Send the eighth frequency domain position change configuration of FDM multiplexing to the terminal device. The eighth frequency domain position change configuration is used to indicate that the frequency domain position change is to first configure the lowest frequency domain position in the second frequency domain position set, then configure the highest frequency domain position, configure the second lowest frequency domain position, then configure the second highest frequency domain position, and so on, until all frequency domain positions in the second frequency domain position set are configured.

[0339] Step 602: Receive multiple PRACH messages sent by the terminal device via FDM multiplexing.

[0340] In summary, in the embodiments of this disclosure, an FDM multiplexing configuration for multiple PRACH transmission is sent to the terminal device, and multiple PRACHs transmitted by the terminal device via FDM multiplexing are received. In these embodiments, the network-side device can send an FDM multiplexing configuration for multiple PRACH transmission to the terminal device, enabling the terminal device to transmit multiple PRACHs over PRACH resources via FDM multiplexing, reducing the possibility of multiple PRACHs not being transmitted and improving the probability of successful random access. This disclosure provides a processing method for a "multiple PRACH transmission configuration" scenario, enabling the terminal device to transmit multiple PRACHs over PRACH resources via the multiplexing method indicated by the multiple PRACH transmission configuration, thereby improving PRACH channel coverage.

[0341] Figure 7 This is a flowchart illustrating a multi-PRACH transport configuration method provided in an embodiment of this disclosure. The method is executed by a network-side device, such as... Figure 7 As shown, the method may include the following steps:

[0342] Step 701: Send the TDM and FDM multiplexing configuration for multi-PRACH transmission to the terminal device;

[0343] In one embodiment of this disclosure, transmitting a TDM and FDM multiplexing configuration for multiple PRACH transmissions to the terminal device includes at least one of the following:

[0344] Send a second multiple PRACH transmission configuration to the terminal device, wherein the second multiple PRACH transmission configuration is used to indicate that the multiplexing mode is TDM and FDM multiplexing mode;

[0345] Send the time-domain location configuration of TDM multiplexing to the terminal device;

[0346] Send the frequency domain location configuration of FDM multiplexing to the terminal device;

[0347] Send the FDM multiplexing rule configuration to the terminal device.

[0348] Furthermore, in one embodiment of this disclosure, the time-domain location configuration for TDM multiplexing includes at least one of the following:

[0349] Equal-interval time-domain location configuration of ROs in FDM multiplexing;

[0350] Location BITMAP configuration, where each bit of the BITMAP corresponds to the time domain location of a RO.

[0351] Furthermore, in one embodiment of this disclosure, transmitting the time-domain location configuration of FDM multiplexing to the terminal device includes:

[0352] Send prach-ConfigurationIndex and / or ra-ssb-OccasionMaskIndex to the terminal device, wherein prach-ConfigurationIndex carries the time-domain location configuration of the RO for FDM multiplexing, and ra-ssb-OccasionMaskIndex carries the time-domain location configuration of the RO for FDM multiplexing.

[0353] Furthermore, in one embodiment of this disclosure, the frequency domain location configuration of FDM multiplexing includes at least one of the following:

[0354] BITMAP configuration for available FDM locations;

[0355] Configuration of the starting position offset of the available FDM positions;

[0356] Interval configuration between FDM locations.

[0357] In one embodiment of this disclosure, sending FDM multiplexing rule configuration to the terminal device includes at least one of the following:

[0358] Send the ninth frequency domain position change configuration of FDM multiplexing to the terminal device, wherein the ninth frequency domain position change configuration is used to indicate that the frequency domain position change is decreasing from the highest frequency domain position in the third frequency domain position set;

[0359] Send the tenth frequency domain position change configuration of FDM multiplexing to the terminal device, wherein the tenth frequency domain position change configuration is used to indicate that the frequency domain position change is incremented starting from the lowest frequency domain position in the third frequency domain position set;

[0360] Send the eleventh frequency domain position change configuration of FDM multiplexing to the terminal device. The eleventh frequency domain position change configuration is used to indicate that the frequency domain position change is to first configure the highest frequency domain position in the third frequency domain position set, then configure the lowest frequency domain position, configure the second highest frequency domain position, then configure the second lowest frequency domain position, and so on, until all frequency domain positions in the third frequency domain position set are configured.

[0361] The twelfth frequency domain position change configuration of FDM multiplexing is sent to the terminal device. The twelfth frequency domain position change configuration is used to indicate that the frequency domain position change is to first configure the lowest frequency domain position in the third frequency domain position set, then configure the highest frequency domain position, configure the second lowest frequency domain position, then configure the second highest frequency domain position, and so on, until all frequency domain positions in the third frequency domain position set are configured.

[0362] In one embodiment of this disclosure, the second frequency domain location set may be the same as or different from the third frequency domain location set.

[0363] Step 702: Receive multiple PRACH messages sent by the terminal device using TDM and FDM multiplexing.

[0364] In summary, in the embodiments of this disclosure, a TDM and FDM multiplexing configuration for multiple PRACH transmission is sent to the terminal device, and multiple PRACHs transmitted by the terminal device via TDM and FDM multiplexing are received. In these embodiments, the network-side device can send a TDM and FDM multiplexing configuration for multiple PRACH transmission to the terminal device, enabling the terminal device to transmit multiple PRACHs over PRACH resources via TDM and FDM multiplexing, reducing the possibility of multiple PRACHs not being transmitted and improving the probability of successful random access. This disclosure provides a processing method for a "multiple PRACH transmission configuration" scenario, enabling the terminal device to transmit multiple PRACHs over PRACH resources via the multiplexing method indicated by the multiple PRACH transmission configuration, thereby improving PRACH channel coverage.

[0365] Figure 8 This is a flowchart illustrating a multi-PRACH transport configuration method provided in an embodiment of this disclosure. The method is executed by a network-side device, such as... Figure 8 As shown, the method may include the following steps:

[0366] Step 801: Send the configuration of the number of multiple PRACH transmissions for FDM multiplexing to the terminal device;

[0367] Furthermore, in one embodiment of this disclosure, the FDM multiplexing multiple PRACH transmission quantity configuration is used to indicate the FDM multiplexing multiple PRACH transmission quantity as the number of ROs of FDM in the multiple PRACH configuration.

[0368] For example, when a network-side device sends a configuration of the number of multiple PRACH transmissions in FDM multiplexing to a terminal device, it can send a configuration indicating that the number of multiple PRACH transmissions in FDM multiplexing is the number of ROs of FDM in the multiple PRACH configuration to the terminal device, or it can send a configuration indicating that the number of multiple PRACH transmissions in FDM multiplexing is the maximum number of ROs of FDM in the multiple PRACH configuration to the terminal device.

[0369] Step 802: Receive multiple PRACH messages sent by the terminal device using TDM and FDM multiplexing.

[0370] In summary, in the embodiments of this disclosure, a TDM and FDM multiplexing configuration for multiple PRACH transmission is sent to the terminal device, and multiple PRACHs transmitted by the terminal device via TDM and FDM multiplexing are received. In these embodiments, the network-side device can send a TDM and FDM multiplexing configuration for multiple PRACH transmission to the terminal device, enabling the terminal device to transmit multiple PRACHs over PRACH resources via TDM and FDM multiplexing, reducing the possibility of multiple PRACHs not being transmitted and improving the probability of successful random access. This disclosure provides a processing method for a "multiple PRACH transmission configuration" scenario, enabling the terminal device to transmit multiple PRACHs over PRACH resources via the multiplexing method indicated by the multiple PRACH transmission configuration, thereby improving PRACH channel coverage.

[0371] Figure 9 This is a flowchart illustrating a multi-PRACH transport configuration method provided in an embodiment of this disclosure. The method is executed by a network-side device, such as... Figure 9 As shown, the method may include the following steps:

[0372] Step 901: Send multiple PRACH transmission configuration to the terminal device, wherein the multiple PRACH transmission configuration includes a first multiple PRACH transmission configuration based on non-contention-based random access CFRA and / or a second multiple PRACH transmission configuration based on contention-based random access CBRA. The multiple PRACH transmission configuration is used to indicate the multiplexing method adopted by the terminal device when sending multiple PRACHs.

[0373] Step 902: Receive multiple PRACH messages sent by the terminal device via multiplexing.

[0374] Furthermore, in one embodiment of this disclosure, the CFRA triggering method includes at least one of the following:

[0375] Physical downlink control channel (PDCCH) triggered;

[0376] Switch trigger;

[0377] Beam failure recovery trigger;

[0378] PScell ​​adds or changes triggers.

[0379] In summary, in the embodiments of this disclosure, a multi-PRACH transmission configuration is sent to the terminal device. This multi-PRACH transmission configuration includes a first multi-PRACH transmission configuration for CFRA and / or a second multi-PRACH transmission configuration for CBRA. The multi-PRACH transmission configuration is used to indicate the multiplexing method adopted by the terminal device when transmitting multiple PRACHs, and to receive the multiple PRACHs transmitted by the terminal device through the multiplexing method. In the embodiments of this disclosure, the network-side device can send the multi-PRACH transmission configuration to the terminal device to receive the multiple PRACHs transmitted by the terminal device through the multiplexing method, reducing the possibility of multiple PRACHs not being transmitted and improving the probability of successful random access. This disclosure provides a processing method for a "multi-PRACH transmission configuration" scenario, enabling the terminal device to transmit multiple PRACHs over PRACH resources through the multiplexing method indicated by the multi-PRACH transmission configuration, thereby improving the coverage of the PRACH channel.

[0380] Figure 10 This is a flowchart illustrating a multi-PRACH transport configuration method provided in an embodiment of this disclosure. The method is executed by a network-side device, such as... Figure 10 As shown, the method may include the following steps:

[0381] Step 1001: In response to the CFRA triggered by PDCCH, send a PDCCH order to the terminal device, wherein the PDCCH order carries a first multiple PRACH transmission configuration, which is used to indicate the multiplexing method adopted by the terminal device when sending multiple PRACHs.

[0382] Step 1002: Receive multiple PRACH messages sent by the receiving terminal device via multiplexing.

[0383] In summary, in the embodiments of this disclosure, in response to a CFRA triggered by a PDCCH, a PDCCH order (PDCCHorder) is sent to the terminal device. The PDCCH order carries a first multi-PRACH transmission configuration, which indicates the multiplexing method used by the terminal device when sending multiple PRACHs, and receives multiple PRACHs sent by the terminal device through multiplexing. In these embodiments, the network-side device can send a multi-PRACH transmission configuration to the terminal device to receive multiple PRACHs sent by the terminal device through multiplexing, reducing the possibility of multiple PRACHs not being transmitted and improving the probability of successful random access. This application specifically discloses that in response to a CFRA triggered by a PDCCH, a PDCCH order can be sent to the terminal device to send a first multi-PRACH transmission configuration, which can improve the accuracy of sending the first multi-PRACH transmission configuration. This disclosure provides a processing method for a "multiple PRACH transmission configuration" scenario, enabling a terminal device to transmit multiple PRACHs over PRACH resources via a multiplexing method indicated by the multiple PRACH transmission configuration, thereby improving the coverage of the PRACH channel.

[0384] Figure 11 This is a flowchart illustrating a multi-PRACH transport configuration method provided in an embodiment of this disclosure. The method is executed by a network-side device, such as... Figure 11 As shown, the method may include the following steps:

[0385] Step 1101: In response to the addition or change of the triggered CFRA by the PScell, send a dedicated random access configuration RACH-ConfigDedicated to the terminal device, wherein the CFRA configuration of RACH-ConfigDedicated carries a first multiple PRACH transmission configuration, which is used to indicate the multiplexing method adopted by the terminal device when sending multiple PRACHs.

[0386] Step 1102: Receive multiple PRACH messages sent by the receiving terminal device in a multiplexing manner.

[0387] In summary, in the embodiments of this disclosure, in response to the addition or change of the triggered CFRA by the PScell, a dedicated random access configuration RACH-ConfigDedicated is sent to the terminal device. The CFRA configuration of RACH-ConfigDedicated carries a first multi-PRACH transmission configuration, which indicates the multiplexing method used by the terminal device when sending multiple PRACHs. The terminal device receives multiple PRACHs sent by the terminal device through multiplexing. In the embodiments of this disclosure, the network-side device can send a multi-PRACH transmission configuration to the terminal device to receive multiple PRACHs sent by the terminal device through multiplexing, reducing the possibility of multiple PRACHs not being transmitted and improving the probability of successful random access. Specifically, in response to the addition or change of the triggered CFRA by the PScell, a RACH-ConfigDedicated corresponding to the triggering method can be sent to the terminal device to send the first multi-PRACH transmission configuration, which can improve the accuracy of sending the first multi-PRACH transmission configuration. This disclosure provides a processing method for a "multiple PRACH transmission configuration" scenario, enabling a terminal device to transmit multiple PRACHs over PRACH resources via a multiplexing method indicated by the multiple PRACH transmission configuration, thereby improving the coverage of the PRACH channel.

[0388] Figure 12 This is a flowchart illustrating a multi-PRACH transport configuration method provided in an embodiment of this disclosure. The method is executed by a network-side device, such as... Figure 12 As shown, the method may include the following steps:

[0389] Step 1201: In response to the CFRA triggered by beam failure recovery, send the beam failure recovery configuration BeamFailureRecoveryConfig to the terminal device, wherein the BeamFailureRecoveryConfig carries a first multiple PRACH transmission configuration, which is used to indicate the multiplexing method adopted by the terminal device when sending multiple PRACHs.

[0390] Step 1202: Receive multiple PRACH messages sent by the receiving terminal device via multiplexing.

[0391] In summary, in the embodiments of this disclosure, in response to a CFRA triggered by beam failure recovery, a beam failure recovery configuration (BeamFailureRecoveryConfig) is sent to the terminal device. The BeamFailureRecoveryConfig carries a first multi-PRACH transmission configuration, which indicates the multiplexing method used by the terminal device when transmitting multiple PRACHs, and receives multiple PRACHs transmitted by the terminal device through multiplexing. In these embodiments, the network-side device can send a multi-PRACH transmission configuration to the terminal device to receive multiple PRACHs transmitted by the terminal device through multiplexing, reducing the possibility of multiple PRACHs not being transmitted and improving the probability of successful random access. Specifically, in these embodiments, in response to a CFRA triggered by beam failure recovery, a beam failure recovery configuration corresponding to the triggering method can be sent to the terminal device to send the first multi-PRACH transmission configuration, which improves the accuracy of sending the first multi-PRACH transmission configuration. This disclosure provides a processing method for a "multiple PRACH transmission configuration" scenario, enabling a terminal device to transmit multiple PRACHs over PRACH resources via a multiplexing method indicated by the multiple PRACH transmission configuration, thereby improving the coverage of the PRACH channel.

[0392] Figure 13 This is a flowchart illustrating a multi-PRACH transport configuration method provided in an embodiment of this disclosure. The method is executed by a network-side device, such as... Figure 13 As shown, the method may include the following steps:

[0393] Step 1301: Send the second multiple PRACH transmission configuration to the terminal device via broadcast signaling or via dedicated signaling, wherein the second multiple PRACH transmission configuration is used to indicate the multiplexing method adopted by the terminal device when sending multiple PRACHs;

[0394] In one embodiment of this disclosure, the broadcast signaling includes system message block 1SIB1.

[0395] Furthermore, in one embodiment of this disclosure, the dedicated signaling includes at least one of the following:

[0396] Radio Resource Control (RRC) Reconfiguration message;

[0397] RRC resumes the RRCResume message;

[0398] RRC releases the RRCRelease message;

[0399] RRC establishes an RRCSetup message.

[0400] Step 1302: Receive multiple PRACH messages sent by the receiving terminal device via multiplexing.

[0401] In summary, in the embodiments of this disclosure, a second multi-PRACH transmission configuration is sent to the terminal device via broadcast signaling or dedicated signaling. This second multi-PRACH transmission configuration indicates the multiplexing method used by the terminal device when transmitting multiple PRACHs, and receives the multiple PRACHs transmitted by the terminal device via multiplexing. Specifically, in the embodiments of this disclosure, sending the second multi-PRACH transmission configuration to the terminal device via broadcast signaling or dedicated signaling can improve the accuracy of the second multi-PRACH transmission configuration transmission. This disclosure provides a processing method for a "multi-PRACH transmission configuration" scenario, enabling the terminal device to transmit multiple PRACHs over PRACH resources via the multiplexing method indicated by the multi-PRACH transmission configuration, thereby improving the coverage of the PRACH channel.

[0402] Figure 14 This is a flowchart illustrating a multi-PRACH transport configuration method provided in an embodiment of this disclosure. The method is executed by a network-side device, such as... Figure 14 As shown, the method may include the following steps:

[0403] Step 1401: Send the Common Random Access Channel (RACH) configuration to the terminal device, wherein the RACH configuration carries a second multiple PRACH transmission configuration, which is used to indicate the multiplexing method adopted by the terminal device when sending multiple PRACHs.

[0404] In one embodiment of this disclosure, the RACH configuration includes public RACH resources configured separately on each partial bandwidth BWP.

[0405] Furthermore, in one embodiment of this disclosure, sending RACH configuration to the terminal device includes:

[0406] Send the first random access common configuration RACH-ConfigCommon from the initial BWP configuration of SIB1 to the terminal device, wherein the first RACH-ConfigCommon carries the RACH configuration.

[0407] For example, in one embodiment of this disclosure, sending RACH configuration to a terminal device includes:

[0408] The second RACH-ConfigCommon of the BWP configuration is sent to the terminal device via the RRCReconfiguration message, wherein the second RACH-ConfigCommon carries the RACH configuration.

[0409] Step 1402: Receive multiple PRACH messages sent by the receiving terminal device via multiplexing.

[0410] In summary, in the embodiments of this disclosure, a Common Random Access Channel (RACH) configuration is sent to the terminal device. The RACH configuration carries a second multiple PRACH transmission configuration, which indicates the multiplexing method used by the terminal device when transmitting multiple PRACHs. The terminal device then receives multiple PRACHs transmitted via multiplexing. Specifically, in the embodiments of this disclosure, sending the RACH configuration to the terminal device to send the second multiple PRACH transmission configuration improves the accuracy of the second multiple PRACH transmission configuration transmission. This disclosure provides a processing method for a "multiple PRACH transmission configuration" scenario, enabling the terminal device to transmit multiple PRACHs over PRACH resources via the multiplexing method indicated by the multiple PRACH transmission configuration, thereby improving the coverage of the PRACH channel.

[0411] Figure 15 This is a flowchart illustrating a multi-PRACH transport configuration method provided in an embodiment of this disclosure. The method is executed by a network-side device, such as... Figure 15 As shown, the method may include the following steps:

[0412] Step 1501: Send a dedicated RACH configuration to the terminal device, wherein the dedicated RACH configuration carries a second multiple PRACH transmission configuration, which is used to indicate the multiplexing method adopted by the terminal device when sending multiple PRACHs.

[0413] In one embodiment of this disclosure, sending a dedicated RACH configuration to the terminal device includes:

[0414] Furthermore, in one embodiment of this disclosure, in response to a beam failure recovery triggered CBRA, a beam failure recovery configuration BeamFailureRecoveryConfig is sent to the terminal device, the BeamFailureRecoveryConfig carrying a second multi-PRACH transmission configuration configured in a dedicated RACH configuration.

[0415] Furthermore, in one embodiment of this disclosure, sending a multi-PRACH transmission configuration to the terminal device includes:

[0416] In response to a CBRA triggered by an addition or change in the PScell, a dedicated random access configuration RACH-ConfigDedicated is sent to the end device. RACH-ConfigDedicated carries the second multiple PRACH transport configuration configured in the dedicated RACH configuration.

[0417] Furthermore, in one embodiment of this disclosure, sending a multi-PRACH transmission configuration to the terminal device includes:

[0418] In response to a CBRA triggered by a handover, RACH-ConfigDedicated is sent to the end device. RACH-ConfigDedicated carries the second multiple PRACH transport configuration configured in the dedicated RACH configuration.

[0419] Step 1502: Receive multiple PRACH messages sent by the receiving terminal device via multiplexing.

[0420] In summary, in the embodiments of this disclosure, a dedicated RACH configuration is sent to the terminal device. This dedicated RACH configuration carries a second multi-PRACH transmission configuration, which indicates the multiplexing method used by the terminal device when transmitting multiple PRACHs. The terminal device then receives multiple PRACHs transmitted via multiplexing. Specifically, in the embodiments of this disclosure, sending a dedicated RACH configuration to the terminal device to send the second multi-PRACH transmission configuration improves the accuracy of the second multi-PRACH transmission configuration transmission. This disclosure provides a processing method for a "multi-PRACH transmission configuration" scenario, enabling the terminal device to transmit multiple PRACHs over PRACH resources via the multiplexing method indicated by the multi-PRACH transmission configuration, thereby improving the coverage of the PRACH channel.

[0421] Figure 16 This is a flowchart illustrating a multi-PRACH transport configuration method provided in an embodiment of this disclosure. The method is executed by a network-side device, such as... Figure 16 As shown, the method may include the following steps:

[0422] Step 1601: Send the RACH configuration of the feature combination to the terminal device, wherein the RACH configuration of the feature combination carries a second multiple PRACH transmission configuration, which is used to indicate the multiplexing method adopted by the terminal device when sending multiple PRACHs.

[0423] In one embodiment of this disclosure, the feature combination includes a Coverage Enhancement feature, wherein the Coverage Enhancement feature is used to indicate a Coverage Enhancement feature that supports multiple PRACH transmissions configured for CBRA.

[0424] Step 1602: Receive multiple PRACH messages sent by the receiving terminal device via multiplexing.

[0425] In summary, in the embodiments of this disclosure, a feature combination RACH configuration is sent to the terminal device. This feature combination RACH configuration carries a second multiple PRACH transmission configuration, which indicates the multiplexing method used by the terminal device when sending multiple PRACHs. The terminal device then receives multiple PRACHs sent via multiplexing. Specifically, in the embodiments of this disclosure, sending a feature combination RACH configuration to the terminal device to send the second multiple PRACH transmission configuration improves the accuracy of the second multiple PRACH transmission configuration transmission. This disclosure provides a processing method for a "multiple PRACH transmission configuration" scenario, enabling the terminal device to transmit multiple PRACHs over PRACH resources via the multiplexing method indicated by the multiple PRACH transmission configuration, thereby improving the coverage of the PRACH channel.

[0426] Figure 17 This is a flowchart illustrating a multi-PRACH transport configuration method provided in an embodiment of this disclosure. The method is executed by a network-side device, such as... Figure 17 As shown, the method may include the following steps:

[0427] Step 1701: Receive PRACH capability information sent by the terminal device, wherein the PRACH capability information is used to indicate the terminal device's ability to support multiplexing methods.

[0428] In one embodiment of this disclosure, receiving PRACH capability information sent by the terminal device includes:

[0429] The terminal device receives UECapabilityInformation, which carries PRACH capability information.

[0430] Furthermore, in one embodiment of this disclosure, the PRACH capability information includes at least one of the following:

[0431] PRACH capability information supporting FDM multi-PRACH transmission;

[0432] PRACH capability information supporting TDM multi-PRACH transmission;

[0433] PRACH capability information supporting PRACH transmission in both FDM and TDM;

[0434] PRACH capability information supporting FDM frequency hopping.

[0435] In summary, in the embodiments of this disclosure, PRACH capability information sent by the terminal device is received, wherein the PRACH capability information is used to indicate the terminal device's ability to support multiplexing modes. In the embodiments of this disclosure, the network-side device can determine the multiplexing mode based on the PRACH capability information corresponding to the terminal device, which can improve the accuracy of multiplexing mode determination and the accuracy of multiple PRACH transmission. This disclosure provides a processing method for a "multiple PRACH transmission configuration" scenario, enabling the terminal device to transmit multiple PRACHs over PRACH resources through the multiplexing mode indicated by the multiple PRACH transmission configuration, thereby improving the coverage of the PRACH channel.

[0436] Figure 18 This is a flowchart illustrating a multi-PRACH transport configuration method provided in an embodiment of this disclosure. The method is executed by a network-side device, such as... Figure 18 As shown, the method may include the following steps:

[0437] Step 1801: Receive PRACH capability information sent by the terminal device, wherein the PRACH capability information is used to indicate the terminal device's ability to support multiplexing methods;

[0438] Step 1802: Based on PRACH capability information, configure multi-PRACH transmission configuration for terminal equipment through dedicated signaling.

[0439] In summary, in the embodiments of this disclosure, PRACH capability information sent by a terminal device is received. This PRACH capability information indicates the terminal device's ability to support multiplexing modes. Based on the PRACH capability information, a multi-PRACH transmission configuration is configured for the terminal device via dedicated signaling. In these embodiments, the network-side device can configure a multi-PRACH transmission configuration for the terminal device based on its corresponding PRACH capability information via dedicated signaling, thereby improving the accuracy of the multi-PRACH transmission configuration and the accuracy of multiple PRACH transmissions. This disclosure provides a processing method for a "multi-PRACH transmission configuration" scenario, enabling the terminal device to transmit multiple PRACHs over PRACH resources using the multiplexing mode indicated by the multi-PRACH transmission configuration, thus improving PRACH channel coverage.

[0440] Figure 19 This is a flowchart illustrating a multi-PRACH transmission configuration method provided in an embodiment of this disclosure. The method is executed by a terminal device, such as... Figure 19 As shown, the method may include the following steps:

[0441] Step 1901: Receive the multi-PRACH transmission configuration sent by the network-side device, wherein the multi-PRACH transmission configuration is used to indicate the multiplexing method adopted by the terminal device when sending multiple PRACHs;

[0442] Step 1902: Send multiple PRACH messages to the network-side device using multiplexing.

[0443] In one embodiment of this disclosure, multiple PRACH messages are sent to the network-side device via multiplexing, including at least one of the following:

[0444] Multiple PRACH messages are sent to the network-side device via TDM multiplexing.

[0445] Multiple PRACH messages are sent to the network-side device via FDM multiplexing.

[0446] Multiple PRACH messages are sent to network-side devices using TDM and FDM multiplexing methods.

[0447] Furthermore, in one embodiment of this disclosure, before receiving the multi-PRACH transmission configuration sent by the network-side device, the method further includes:

[0448] Send PRACH capability information to the network-side device, wherein the PRACH capability information is used to indicate the capability information of the terminal device to support multiplexing mode.

[0449] For example, in one embodiment of this disclosure, sending PRACH capability information to a network-side device includes:

[0450] Send UECapabilityInformation to the network-side device, where UECapabilityInformation carries PRACH capability information.

[0451] For example, in one embodiment of this disclosure, the PRACH capability information includes at least one of the following:

[0452] PRACH capability information supporting FDM multi-PRACH transmission;

[0453] PRACH capability information supporting TDM multi-PRACH transmission;

[0454] PRACH capability information supporting PRACH transmission in both FDM and TDM;

[0455] PRACH capability information supporting FDM frequency hopping.

[0456] In summary, in the embodiments of this disclosure, a multi-PRACH transmission configuration sent by a network-side device is received. This multi-PRACH transmission configuration instructs the terminal device on the multiplexing method used when transmitting multiple PRACHs. Multiple PRACHs are then transmitted to the network-side device via this multiplexing method. In these embodiments, the network-side device can send the multi-PRACH transmission configuration to the terminal device, allowing the terminal device to transmit multiple PRACHs over PRACH resources using the multiplexing method indicated by the multi-PRACH transmission configuration. This reduces the likelihood of multiple PRACHs being unable to be transmitted, thereby increasing the probability of successful random access. This disclosure provides a processing method for a "multi-PRACH transmission configuration" scenario, enabling the terminal device to transmit multiple PRACHs over PRACH resources using the multiplexing method indicated by the multi-PRACH transmission configuration, thus improving the coverage of the PRACH channel.

[0457] Figure 20 This is a flowchart illustrating a multi-PRACH transmission configuration method provided in an embodiment of this disclosure. The method is executed by a terminal device, such as... Figure 20 As shown, the method may include the following steps:

[0458] Step 2001: Receive the multi-PRACH transmission configuration sent by the network-side device, wherein the multi-PRACH transmission configuration is used to indicate the multiplexing method adopted by the terminal device when sending multiple PRACHs;

[0459] Choose one of the following steps to perform:

[0460] Step 2002: Send multiple PRACH messages to the network-side device using TDM multiplexing.

[0461] Step 2003: Send multiple PRACH messages to the network-side device using FDM multiplexing.

[0462] Step 2004: Send multiple PRACH messages to the network-side device using TDM and FDM multiplexing.

[0463] For example, in one embodiment of this disclosure, multiple PRACH transmissions by a terminal device may employ different time-domain RO resources. For instance, the terminal device selects a frequency-domain RO at the first time-domain position of an RO that can be used for multiple PRACH transmissions to send a PRACH. The frequency-domain position selection method includes: the terminal device freely selects one, or the terminal device selects one according to a frequency-domain position change configuration. Further detailed descriptions of the frequency-domain position change configuration for TDM multiplexing can be found in the above embodiments, and will not be repeated here. The terminal device selects a frequency-domain RO at the second time-domain position of an RO that can be used for multiple PRACH transmissions to send a PRACH. This frequency-domain position selection includes the terminal device freely selecting one, selecting the same frequency-domain position as the first transmission, or selecting a second frequency-domain position according to a frequency-domain position change configuration, and so on, until subsequent PRACH transmissions are completed.

[0464] For example, in one embodiment of this disclosure, multiple PRACH transmissions by the terminal device may employ different frequency domain RO resources. The terminal device determines the time-domain resource locations of the ROs where multiple PRACH transmissions can be performed. The terminal device may select X different frequency domain locations at these time-domain locations to transmit X PRACHs, where the value of X equals the number of multiple PRACH transmissions, and X is a positive integer. The selection of the X frequency domain locations can be freely chosen by the terminal device or configured according to frequency domain location variations.

[0465] For example, in one embodiment of this disclosure, multiple PRACH transmissions by a terminal device can, for instance, utilize different time-domain and different frequency-domain RO resources. The terminal device, for example, selects X frequency-domain ROs at the first time-domain position of the ROs available for multiple PRACH transmissions to send PRACHs. The selection of the X frequency-domain positions can be freely chosen by the terminal device or selected according to a frequency-domain position variation configuration. The determination of the value of X includes at least one of the following methods: first, the terminal device determines X based on the multiple PRACH transmission configuration sent by the network-side device; second, the terminal device determines X based on the total number of ROs in the FDM, for example, X = min(total number of FDM ROs, remaining number of multiple PRACH transmissions). The terminal device selects Y frequency-domain ROs at the second time-domain position of the ROs available for multiple PRACH transmissions to send PRACHs. The Y frequency-domain positions can be freely chosen, or the frequency-domain positions used in the first time-domain position can be used, or Y frequency-domain positions other than the previously selected X frequency-domain positions can be selected according to a frequency-domain position variation configuration. The determination of the Y value includes at least one of the following methods: First, the terminal device determines Y based on the multi-PRACH transmission configuration sent by the network-side device; second, the terminal device determines Y based on the total number of ROs in the FDM, for example, Y = min(total number of FDM ROs, remaining number of multi-PRACH transmissions). This process continues until the subsequent PRACH transmissions are completed.

[0466] For further details regarding steps 2001-2004, please refer to the description of the above embodiments. These embodiments will not be repeated here.

[0467] In summary, in the embodiments of this disclosure, a multi-PRACH transmission configuration sent by a network-side device is received. This multi-PRACH transmission configuration instructs the terminal device on the multiplexing method used when transmitting multiple PRACHs, thereby transmitting multiple PRACHs to the network-side device through the multiplexing method. The embodiments of this disclosure specifically disclose the specific multiplexing method, enabling the terminal device to transmit multiple PRACHs over PRACH resources using the multiplexing method indicated by the multi-PRACH transmission configuration. This reduces the possibility of not being able to transmit multiple PRACHs and improves the accuracy of multiple PRACH transmission. This disclosure provides a processing method for a "multi-PRACH transmission configuration" scenario, enabling the terminal device to transmit multiple PRACHs over PRACH resources using the multiplexing method indicated by the multi-PRACH transmission configuration, thereby improving the coverage of the PRACH channel.

[0468] Figure 21 This is a flowchart illustrating a multi-PRACH transmission configuration method provided in an embodiment of this disclosure. The method is executed by a terminal device, such as... Figure 21 As shown, the method may include the following steps:

[0469] Step 2101: Send PRACH capability information to the network-side device, wherein the PRACH capability information is used to indicate the terminal device's ability to support multiplexing methods;

[0470] Step 2102: Receive the multi-PRACH transmission configuration sent by the network-side device, wherein the multi-PRACH transmission configuration is used to indicate the multiplexing method adopted by the terminal device when sending multiple PRACHs;

[0471] Step 2103: Send multiple PRACH messages to the network-side device using multiplexing.

[0472] In one embodiment of this disclosure, the PRACH capability information includes at least one of the following:

[0473] PRACH capability information supporting FDM multi-PRACH transmission;

[0474] PRACH capability information supporting TDM multi-PRACH transmission;

[0475] PRACH capability information supporting PRACH transmission in both FDM and TDM;

[0476] PRACH capability information supporting FDM frequency hopping.

[0477] For further details regarding steps 2101-2103, please refer to the description of the above embodiments. These embodiments will not be repeated here.

[0478] In summary, in the embodiments of this disclosure, PRACH capability information is sent to the network-side device, wherein the PRACH capability information is used to indicate the terminal device's ability to support multiplexing methods; a multi-PRACH transmission configuration is received from the network-side device, wherein the multi-PRACH transmission configuration is used to indicate the multiplexing method adopted by the terminal device when transmitting multiple PRACHs; and multiple PRACHs are transmitted to the network-side device through the multiplexing method. In the embodiments of this disclosure, by uploading PRACH capability information to the network-side device, the configuration accuracy of the multi-PRACH transmission configuration can be improved, and the accuracy of multiple PRACH transmission can be improved. This disclosure provides a processing method for a "multi-PRACH transmission configuration" scenario, enabling the terminal device to transmit multiple PRACHs over PRACH resources through the multiplexing method indicated by the multi-PRACH transmission configuration, thereby improving the coverage of the PRACH channel.

[0479] Figure 22 This is a schematic diagram of the structure of a multi-PRACH transmission configuration device provided in an embodiment of this disclosure, as shown below. Figure 22As shown, the device 2200 may include:

[0480] The sending module 2201 is used to send a multi-PRACH transmission configuration to the terminal device, wherein the multi-PRACH transmission configuration is used to indicate the multiplexing method adopted by the terminal device when sending multiple PRACHs;

[0481] The receiving module 2202 is used to receive multiple PRACHs sent by the terminal device in a multiplexing manner.

[0482] In summary, in the multi-PRACH transmission configuration apparatus of this disclosure, the transmitting module can transmit the multi-PRACH transmission configuration to the terminal device. The multi-PRACH transmission configuration indicates the multiplexing method used by the terminal device when transmitting multiple PRACHs. The receiving module can receive the multiple PRACHs transmitted by the terminal device through the multiplexing method. In this disclosure, the multi-PRACH transmission configuration apparatus can transmit the multi-PRACH transmission configuration to the terminal device, enabling the terminal device to transmit multiple PRACHs over PRACH resources using the multiplexing method indicated by the multi-PRACH transmission configuration. This reduces the possibility of not being able to transmit multiple PRACHs and improves the probability of successful random access. This disclosure provides a processing method for a "multi-PRACH transmission configuration" scenario, enabling the terminal device to transmit multiple PRACHs over PRACH resources using the multiplexing method indicated by the multi-PRACH transmission configuration, thereby improving the coverage of the PRACH channel.

[0483] Secondly, in one embodiment of this disclosure, the sending module 2201 is used to send multiple PRACH transmission configurations to the terminal device, including at least one of the following:

[0484] Send the TDM time-division multiplexing configuration for multiple PRACH transmissions to the terminal device;

[0485] Send the FDM (Frequency Division Multiplexing) configuration for multiple PRACH transmissions to the terminal device;

[0486] Send TDM and FDM multiplexing configurations for multiple PRACH transmissions to the terminal device.

[0487] Optionally, in one embodiment of this disclosure, when the transmitting module 2201 is used to transmit the TDM multiplexing configuration for multiple PRACH transmissions to the terminal device, it includes at least one of the following:

[0488] Send the time-domain location configuration of TDM multiplexing to the terminal device;

[0489] Send the frequency domain location configuration of TDM multiplexing to the terminal device.

[0490] Optionally, in one embodiment of this disclosure, when the transmitting module 2201 transmits the time-domain location configuration of TDM multiplexing to the terminal device, it includes at least one of the following:

[0491] Send the time-domain location configuration of the random access opportunity (RO) of TDM multiplexing to the terminal device at equal intervals;

[0492] Send the location bitmap configuration to the terminal device, where each bit of the bitmap corresponds to the time domain location of a RO.

[0493] Optionally, in one embodiment of this disclosure, when the sending module 2201 is used to send multiple PRACH transmission configurations to the terminal device, it is specifically used for:

[0494] Send the physical random access channel configuration index prach-ConfigurationIndex and / or random access SSB transmission template index ra-ssb-OccasionMaskIndex to the terminal device, wherein prach-ConfigurationIndex carries the time-domain location configuration of TDM multiplexing, and ra-ssb-OccasionMaskIndex carries the time-domain location configuration of TDM multiplexing.

[0495] Optionally, in one embodiment of this disclosure, when the transmitting module 2201 transmits the frequency domain location configuration of TDM multiplexing to the terminal device, it includes at least one of the following:

[0496] Send the configuration of the fixed frequency domain position of TDM multiplexing to the terminal device;

[0497] Send the frequency domain position change configuration of TDM multiplexing to the terminal device.

[0498] Optionally, in one embodiment of this disclosure, when the transmitting module 2201 transmits the frequency domain position change configuration of TDM multiplexing to the terminal device, it includes at least one of the following:

[0499] The first frequency domain position change configuration of TDM multiplexing is sent to the terminal device, wherein the first frequency domain position change configuration is used to indicate that the frequency domain position change is decreasing from the highest frequency domain position in the first frequency domain position set;

[0500] The second frequency domain position change configuration of TDM multiplexing is sent to the terminal device, wherein the second frequency domain position change configuration is used to indicate that the frequency domain position change is incremented starting from the lowest frequency domain position in the first frequency domain position set;

[0501] Send the third frequency domain position change configuration of TDM multiplexing to the terminal device. The third frequency domain position change configuration is used to indicate that the frequency domain position change is to first configure the highest frequency domain position in the first frequency domain position set, then configure the lowest frequency domain position, configure the second highest frequency domain position, then configure the second lowest frequency domain position, and so on, until all frequency domain positions in the first frequency domain position set are configured.

[0502] The fourth frequency domain position change configuration of TDM multiplexing is sent to the terminal device. The fourth frequency domain position change configuration is used to indicate that the frequency domain position change is to first configure the lowest frequency domain position in the first frequency domain position set, then configure the highest frequency domain position, configure the second lowest frequency domain position, then configure the second highest frequency domain position, and so on, until all frequency domain positions are configured.

[0503] Optionally, in one embodiment of this disclosure, when the transmitting module 2201 is used to transmit the FDM multiplexing configuration of multiple PRACH transmissions to the terminal device, it includes at least one of the following:

[0504] Send a first multiple PRACH transmission configuration to the terminal device, wherein the first multiple PRACH transmission configuration is used to indicate that the multiplexing mode is FDM multiplexing mode;

[0505] Send the FDM multiplexing rule configuration to the terminal device;

[0506] Send FDM location configuration to the terminal device;

[0507] Send the time-domain location configuration of the RO (Redirection) of the FDM multiplexing to the terminal device.

[0508] Optionally, in one embodiment of this disclosure, the sending module 2201, when sending FDM location configuration to the terminal device, includes at least one of the following:

[0509] Send the available FDM location BITMAP configuration to the terminal device;

[0510] Send the configuration of the starting position offset of the available FDM positions to the terminal device;

[0511] Send the configuration of the interval between FDM locations to the terminal device.

[0512] Optionally, in one embodiment of this disclosure, when the transmitting module 2201 is used to transmit the time-domain location configuration of the FDM multiplexed RO to the terminal device, it includes at least one of the following:

[0513] Send the FDM multiplexed RO's equally spaced time-domain position configuration to the terminal device;

[0514] The location BITMAP configuration is sent to the terminal device, where each bit of the BITMAP corresponds to the time domain location of a RO.

[0515] Optionally, in one embodiment of this disclosure, when the transmitting module 2201 is used to transmit the time-domain location configuration of the FDM multiplexed RO to the terminal device, it is specifically used for:

[0516] Send prach-ConfigurationIndex and / or ra-ssb-OccasionMaskIndex to the terminal device, wherein prach-ConfigurationIndex carries the time-domain location configuration of the RO for FDM multiplexing, and ra-ssb-OccasionMaskIndex carries the time-domain location configuration of the RO for FDM multiplexing.

[0517] Optionally, in one embodiment of this disclosure, when the transmitting module 2201 is used to transmit the TDM and FDM multiplexing configuration of multi-PRACH transmission to the terminal device, it includes at least one of the following:

[0518] Send a second multiple PRACH transmission configuration to the terminal device, wherein the second multiple PRACH transmission configuration is used to indicate that the multiplexing mode is TDM and FDM multiplexing mode;

[0519] Send the time-domain location configuration of the FDM multiplexing to the terminal device;

[0520] Send the frequency domain location configuration of FDM multiplexing to the terminal device;

[0521] Send the FDM multiplexing rule configuration to the terminal device.

[0522] Optionally, in one embodiment of this disclosure, the time-domain location configuration of TDM multiplexing includes at least one of the following:

[0523] Equal-interval time-domain location configuration of ROs in FDM multiplexing;

[0524] Location BITMAP configuration, where each bit of the BITMAP corresponds to the time domain location of a RO.

[0525] Optionally, in one embodiment of this disclosure, when the transmitting module 2201 is used to transmit the time-domain location configuration of FDM multiplexing to the terminal device, it is specifically used for:

[0526] Send prach-ConfigurationIndex and / or ra-ssb-OccasionMaskIndex to the terminal device, wherein prach-ConfigurationIndex carries the time-domain location configuration of the RO for FDM multiplexing, and ra-ssb-OccasionMaskIndex carries the time-domain location configuration of the RO for FDM multiplexing.

[0527] Optionally, in one embodiment of this disclosure, the frequency domain location configuration of FDM multiplexing includes at least one of the following:

[0528] BITMAP configuration for available FDM locations;

[0529] Configuration of the starting position offset of the available FDM positions;

[0530] Interval configuration between FDM locations.

[0531] Optionally, in one embodiment of this disclosure, when the transmitting module 2201 is used to transmit the TDM and FDM multiplexing configuration for multi-PRACH transmission to the terminal device, it is specifically used for:

[0532] Configure the number of FDM multiplexed PRACH transmissions to the terminal device.

[0533] Optionally, in one embodiment of this disclosure, the FDM multiplexing multiple PRACH transmission quantity configuration is used to indicate the FDM multiplexing multiple PRACH transmission quantity as the number of ROs of FDM in the multiple PRACH configuration.

[0534] Optionally, in one embodiment of this disclosure, when the sending module 2201 is used to send multiple PRACH transmission configurations to the terminal device, it is specifically used for:

[0535] Send multiple PRACH transmission configurations to the terminal device, wherein the multiple PRACH transmission configurations include a first multiple PRACH transmission configuration based on non-contention-based random access CFRA and / or a second multiple PRACH transmission configuration based on contention-based random access CBRA.

[0536] Optionally, in one embodiment of this disclosure, the CFRA triggering method includes at least one of the following:

[0537] Physical downlink control channel (PDCCH) triggered;

[0538] Switch trigger;

[0539] Beam failure recovery trigger;

[0540] PScell ​​adds or changes triggers.

[0541] Optionally, in one embodiment of this disclosure, when the sending module 2201 is used to send multiple PRACH transmission configurations to the terminal device, it is specifically used for:

[0542] In response to the CFRA triggered by the PDCCH, a PDCCH order is sent to the terminal device. The PDCCH order carries the first PRACH transmission configuration.

[0543] Optionally, in one embodiment of this disclosure, when the sending module 2201 is used to send multiple PRACH transmission configurations to the terminal device, it is specifically used for:

[0544] In response to the addition or change of the CFRA triggered by the PScell, a dedicated random access configuration RACH-ConfigDedicated is sent to the end device. The CFRA configuration of RACH-ConfigDedicated carries the first multiple PRACH transport configuration.

[0545] Optionally, in one embodiment of this disclosure, when the sending module 2201 is used to send multiple PRACH transmission configurations to the terminal device, it is specifically used for:

[0546] In response to a CFRA triggered by a handover, RACH-ConfigDedicated is sent to the end device. The CFRA configuration in RACH-ConfigDedicated carries the first multiple PRACH transport configuration.

[0547] Optionally, in one embodiment of this disclosure, when the sending module 2201 is used to send multiple PRACH transmission configurations to the terminal device, it is specifically used for:

[0548] In response to the CFRA triggered by beam failure recovery, the beam failure recovery configuration BeamFailureRecoveryConfig is sent to the terminal device. BeamFailureRecoveryConfig carries the first multiple PRACH transmission configuration.

[0549] Optionally, in one embodiment of this disclosure, when the sending module 2201 is used to send multiple PRACH transmission configurations to the terminal device, it is specifically used for:

[0550] The second PRACH transmission configuration is sent to the terminal device via broadcast signaling or via dedicated signaling.

[0551] Optionally, in one embodiment of this disclosure, the broadcast signaling includes system message block 1SIB1.

[0552] Optionally, in one embodiment of this disclosure, the dedicated signaling includes at least one of the following:

[0553] Radio Resource Control (RRC) Reconfiguration message;

[0554] RRC resumes the RRCResume message;

[0555] RRC releases the RRCRelease message;

[0556] RRC establishes an RRCSetup message.

[0557] Optionally, in one embodiment of this disclosure, when the sending module 2201 is used to send multiple PRACH transmission configurations to the terminal device, it is specifically used for:

[0558] Send the Common Random Access Channel (RACH) configuration to the terminal device, wherein the RACH configuration carries the second PRACH transmission configuration.

[0559] Alternatively, in one embodiment of this disclosure, the RACH configuration includes public RACH resources configured separately on each portion bandwidth BWP.

[0560] Optionally, in one embodiment of this disclosure, when the sending module 2201 sends the RACH configuration to the terminal device, it is specifically used for:

[0561] Send the first random access common configuration RACH-ConfigCommon from the initial BWP configuration of SIB1 to the terminal device, wherein the first RACH-ConfigCommon carries the RACH configuration.

[0562] Optionally, in one embodiment of this disclosure, the sending module 2201 is configured to send RACH configuration to the terminal device, including:

[0563] The second RACH-ConfigCommon of the BWP configuration is sent to the terminal device via the RRCReconfiguration message, wherein the second RACH-ConfigCommon carries the RACH configuration.

[0564] Optionally, in one embodiment of this disclosure, when the sending module 2201 is used to send multiple PRACH transmission configurations to the terminal device, it is specifically used for:

[0565] Send a dedicated RACH configuration to the terminal device, wherein the dedicated RACH configuration carries a second PRACH transmission configuration.

[0566] Optionally, in one embodiment of this disclosure, when the sending module 2201 is used to send the dedicated RACH configuration to the terminal device, it is specifically used for:

[0567] In response to a CBRA triggered by beam failure recovery, a beam failure recovery configuration BeamFailureRecoveryConfig is sent to the terminal device. BeamFailureRecoveryConfig carries the second multiple PRACH transport configuration configured in the dedicated RACH configuration.

[0568] Optionally, in one embodiment of this disclosure, when the sending module 2201 is used to send multiple PRACH transmission configurations to the terminal device, it is specifically used for:

[0569] In response to a CBRA triggered by an addition or change in the PScell, a dedicated random access configuration RACH-ConfigDedicated is sent to the end device. RACH-ConfigDedicated carries the second multiple PRACH transport configuration configured in the dedicated RACH configuration.

[0570] Optionally, in one embodiment of this disclosure, when the sending module 2201 is used to send multiple PRACH transmission configurations to the terminal device, it is specifically used for:

[0571] In response to a CBRA triggered by a handover, RACH-ConfigDedicated is sent to the end device. RACH-ConfigDedicated carries the second multiple PRACH transport configuration configured in the dedicated RACH configuration.

[0572] Optionally, in one embodiment of this disclosure, when the sending module 2201 is used to send multiple PRACH transmission configurations to the terminal device, it is specifically used for:

[0573] The RACH configuration of the feature combination is sent to the terminal device, wherein the RACH configuration of the feature combination carries a second PRACH transmission configuration.

[0574] Optionally, in one embodiment of this disclosure, the feature combination includes a Coverage Enhancement feature, wherein the Coverage Enhancement feature is used to indicate a Coverage Enhancement feature that supports multiple PRACH transmissions configured for CBRA.

[0575] Optionally, in one embodiment of this disclosure, the receiving module 2202 is further configured to receive PRACH capability information sent by the terminal device, wherein the PRACH capability information is used to indicate the capability information of the terminal device supporting multiplexing mode.

[0576] Optionally, in one embodiment of this disclosure, when the receiving module 2202 receives PRACH capability information sent by the terminal device, it is specifically used for:

[0577] The terminal device receives UECapabilityInformation, which carries PRACH capability information.

[0578] Optionally, in one embodiment of this disclosure, the PRACH capability information includes at least one of the following:

[0579] PRACH capability information supporting FDM multi-PRACH transmission;

[0580] PRACH capability information supporting TDM multi-PRACH transmission;

[0581] PRACH capability information supporting PRACH transmission in both FDM and TDM;

[0582] PRACH capability information supporting FDM frequency hopping.

[0583] Optionally, in one embodiment of this disclosure, the receiving module 2202 is further configured to, after receiving the PRACH capability information sent by the terminal device, configure a multi-PRACH transmission configuration for the terminal device through dedicated signaling based on the PRACH capability information.

[0584] Figure 23 This is a schematic diagram of the structure of a multi-PRACH transmission configuration device provided in an embodiment of this disclosure, as shown below. Figure 23 As shown, the device 2300 may include:

[0585] The receiving module 2301 is used to receive the multi-PRACH transmission configuration sent by the network-side device, wherein the multi-PRACH transmission configuration is used to indicate the multiplexing method adopted by the terminal device when sending multiple PRACHs;

[0586] The sending module 2302 is used to send multiple PRACH messages to the network-side device in a multiplexing manner.

[0587] In summary, in the multi-PRACH transmission configuration apparatus of this disclosure, the receiving module can receive the MCGFailureInformation reported by the terminal device, wherein the MCGFailureInformation carries failure-related information. In this disclosure embodiment, when the terminal device triggers the MCGFailureInformation report, the failure-related information sent by the terminal device can be received directly, without waiting for the terminal device to reconnect to the network before receiving the failure-related information stored in the terminal device, thus reducing the reporting time of failure-related information. This disclosure provides a processing apparatus for a "multi-PRACH transmission configuration" scenario to reduce the time of multi-PRACH transmission configuration, improve the efficiency of multi-PRACH transmission configuration, and thereby improve the convenience of parameter adjustment by network-side devices.

[0588] Optionally, in one embodiment of this disclosure, the sending module 2302 is configured to send multiple PRACH messages to the network-side device via multiplexing, including at least one of the following:

[0589] Multiple PRACH messages are sent to the network-side device via TDM multiplexing.

[0590] Multiple PRACH messages are sent to the network-side device via FDM multiplexing.

[0591] Multiple PRACH messages are sent to network-side devices using TDM and FDM multiplexing methods.

[0592] Optionally, in one embodiment of this disclosure, the sending module 2302 is configured to send PRACH capability information to the network-side device before receiving the multiple PRACH transmission configuration sent by the network-side device, wherein the PRACH capability information is used to indicate the capability information of the terminal device supporting multiplexing mode.

[0593] Optionally, in one embodiment of this disclosure, when the sending module 2302 is used to send PRACH capability information to the network-side device, it is specifically used for:

[0594] Send UECapabilityInformation to the network-side device, where UECapabilityInformation carries PRACH capability information.

[0595] For example, in one embodiment of this disclosure, the PRACH capability information includes at least one of the following:

[0596] PRACH capability information supporting FDM multi-PRACH transmission;

[0597] PRACH capability information supporting TDM multi-PRACH transmission;

[0598] PRACH capability information supporting PRACH transmission in both FDM and TDM;

[0599] PRACH capability information supporting FDM frequency hopping.

[0600] Figure 24 This is a block diagram of a terminal device UE2400 provided in one embodiment of this disclosure. For example, UE2400 may be a mobile phone, computer, digital broadcasting terminal device, messaging transceiver, game console, tablet device, medical device, fitness device, personal digital assistant, etc.

[0601] Reference Figure 24 The UE2400 may include at least one of the following components: a processing component 2402, a memory 2404, a power supply component 2406, a multimedia component 2408, an audio component 2410, an input / output (I / O) interface 2412, a sensor component 2414, and a communication component 2424.

[0602] Processing component 2402 typically controls the overall operation of UE 2400, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 2402 may include at least one processor 2420 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 2402 may include at least one module to facilitate interaction between processing component 2402 and other components. For example, processing component 2402 may include a multimedia module to facilitate interaction between multimedia component 2408 and processing component 2402.

[0603] Memory 2404 is configured to store various types of data to support operation on UE 2400. Examples of this data include instructions for any application or method operating on UE 2400, contact data, phonebook data, messages, pictures, videos, etc. Memory 2404 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0604] Power supply component 2406 provides power to various components of UE2400. Power supply component 2406 may include a power management system, at least one power supply, and other components associated with generating, managing, and distributing power to UE2400.

[0605] The multimedia component 2408 includes a screen that provides an output interface between the UE 2400 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes at least one touch sensor to sense touch, swipe, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or swipe action but also detect the wake-up time and pressure associated with the touch or swipe operation. In some embodiments, the multimedia component 2408 includes a front-facing camera and / or a rear-facing camera. When the UE 2400 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0606] Audio component 2410 is configured to output and / or input audio signals. For example, audio component 2410 includes a microphone (MIC) configured to receive external audio signals when UE 2400 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 2404 or transmitted via communication component 2424. In some embodiments, audio component 2410 also includes a speaker for outputting audio signals.

[0607] I / O interface 2412 provides an interface between processing component 2402 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0608] Sensor assembly 2414 includes at least one sensor for providing status assessment of various aspects of UE 2400. For example, sensor assembly 2414 can detect the on / off state of device 2400, the relative positioning of components, such as the display and keypad of UE 2400, changes in position of UE 2400 or one of its components, the presence or absence of user contact with UE 2400, orientation or acceleration / deceleration of UE 2400, and temperature changes of UE 2400. Sensor assembly 2414 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 2414 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 2414 may also include an accelerometer, gyroscope, magnetometer, pressure sensor, or temperature sensor.

[0609] Communication component 2424 is configured to facilitate wired or wireless communication between UE2400 and other devices. UE2400 can access wireless networks based on communication standards, such as WiFi, 2G, or 3G, or combinations thereof. In one exemplary embodiment, communication component 2424 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 2424 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0610] In an exemplary embodiment, the UE2400 may be implemented by at least one application-specific integrated circuit (ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), field-programmable gate array (FPGA), controller, microcontroller, microprocessor or other electronic component to perform the above method.

[0611] Figure 25 This is a block diagram of a network-side device 2500 provided in an embodiment of this disclosure. For example, the network-side device 2500 can be provided as a network-side device. (Refer to...) Figure 25 The network-side device 2500 includes a processing component 2522, which further includes at least one processor, and memory resources represented by memory 2532 for storing instructions executable by the processing component 2522, such as application programs. The application programs stored in memory 2532 may include one or more modules, each corresponding to a set of instructions. Furthermore, the processing component 2522 is configured to execute instructions to perform any of the methods described above applied to the network-side device, for example, such as... Figure 1 The method shown.

[0612] The network-side device 2500 may also include a power supply component 2526 configured to perform power management of the network-side device 2500, a wired or wireless network interface 2550 configured to connect the network-side device 2500 to a network, and an input / output (I / O) interface 2558. The network-side device 2500 can operate on an operating system stored in memory 2532, such as Windows Server™, Mac OS X™, Unix™, Linux™, Free BSD™, or similar.

[0613] In the embodiments provided above, the methods provided by the present disclosure have been described from the perspectives of the network-side device and the UE, respectively. To implement the functions of the methods provided in the embodiments of the present disclosure, the network-side device and the UE may include hardware structures and software modules, implementing the above functions in the form of hardware structures, software modules, or a combination of hardware structures and software modules. One of the above functions can be executed in the form of hardware structures, software modules, or a combination of hardware structures and software modules.

[0614] In the embodiments provided above, the methods provided by the present disclosure have been described from the perspectives of the network-side device and the UE, respectively. To implement the functions of the methods provided in the embodiments of the present disclosure, the network-side device and the UE may include hardware structures and software modules, implementing the above functions in the form of hardware structures, software modules, or a combination of hardware structures and software modules. One of the above functions can be executed in the form of hardware structures, software modules, or a combination of hardware structures and software modules.

[0615] This disclosure provides a communication device. The communication device may include a transceiver module and a processing module. The transceiver module may include a sending module and / or a receiving module. The sending module is used to implement the sending function, and the receiving module is used to implement the receiving function. The transceiver module can implement both sending and / or receiving functions.

[0616] The communication device can be a terminal device (such as the terminal device in the aforementioned method embodiments), a device within a terminal device, or a device that can be used in conjunction with a terminal device. Alternatively, the communication device can be a network device, a device within a network device, or a device that can be used in conjunction with a network device.

[0617] This disclosure provides another communication device. The communication device can be a network device, a terminal device (such as the terminal device in the foregoing method embodiments), a chip, chip system, or processor that supports the network device in implementing the above methods, or a chip, chip system, or processor that supports the terminal device in implementing the above methods. This device can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0618] A communication device may include one or more processors. The processor may be a general-purpose processor or a dedicated processor. For example, it may be a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control the communication device (e.g., network-side equipment, baseband chip, terminal equipment, terminal equipment chip, DU or CU, etc.), execute computer programs, and process data from the computer programs.

[0619] Optionally, the communication device may further include one or more memories, on which computer programs may be stored. The processor executes the computer programs to cause the communication device to perform the methods described in the above method embodiments. Optionally, the memories may also store data. The communication device and the memories may be provided separately or integrated together.

[0620] Optionally, the communication device may also include a transceiver and an antenna. The transceiver, also known as a transceiver unit, transceiver, or transceiver circuit, is used to implement transmission and reception functions. The transceiver may include a receiver and a transmitter; the receiver, also known as a receiver circuit, is used to implement the receiving function; the transmitter, also known as a transmitter or transmitting circuit, is used to implement the transmitting function.

[0621] Optionally, the communication device may further include one or more interface circuits. The interface circuits are used to receive code instructions and transmit them to the processor. The processor executes the code instructions to cause the communication device to perform the methods described in the above method embodiments.

[0622] The communication device is a network-side device: the processor is used to execute... Figures 1-18 Any of the methods shown.

[0623] The communication device is a terminal device (such as the terminal device in the aforementioned method embodiments): the processor is used to execute... Figures 19-21 Any of the methods shown.

[0624] In one implementation, the processor may include a transceiver for implementing receive and transmit functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing receive and transmit functions may be separate or integrated. The aforementioned transceiver circuit, interface, or interface circuit can be used for reading and writing code / data, or it can be used for transmitting or relaying signals.

[0625] In one implementation, the processor may store a computer program that runs on the processor, causing the communication device to perform the methods described in the above method embodiments. The computer program may be embedded in the processor; in this case, the processor may be implemented in hardware.

[0626] In one implementation, the communication device may include circuitry that performs the functions of transmitting, receiving, or communicating as described in the foregoing method embodiments. The processor and transceiver described in this disclosure can be implemented on integrated circuits (ICs), analog ICs, radio frequency integrated circuits (RFICs), mixed-signal ICs, application-specific integrated circuits (ASICs), printed circuit boards (PCBs), electronic devices, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductors (CMOS), n-metal-oxide-semiconductor (NMOS), positive-channel metal oxide semiconductors (PMOS), bipolar junction transistors (BJTs), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0627] The communication device described in the above embodiments can be a network device or a terminal device (such as the terminal device in the foregoing method embodiments), but the scope of the communication device described in this disclosure is not limited thereto, and the structure of the communication device is not limited. The communication device can be a standalone device or part of a larger device. For example, the communication device can be:

[0628] (1) Independent integrated circuit IC, or chip, or chip system or subsystem;

[0629] (2) A collection of one or more ICs, optionally including storage components for storing data and computer programs;

[0630] (3) ASIC, such as modem;

[0631] (4) Modules that can be embedded in other devices;

[0632] (5) Receivers, terminal equipment, smart terminal equipment, cellular phones, wireless equipment, handheld devices, mobile units, vehicle-mounted equipment, network equipment, cloud equipment, artificial intelligence equipment, etc.

[0633] (6) Others, etc.

[0634] When the communication device can be a chip or a chip system, the chip includes a processor and an interface. There can be one or more processors, and multiple interfaces.

[0635] Optionally, the chip also includes a memory for storing necessary computer programs and data.

[0636] Those skilled in the art will also understand that the various illustrative logical blocks and steps listed in the embodiments of this disclosure can be implemented by electronic hardware, computer software, or a combination of both. Whether such functionality is implemented in hardware or software depends on the specific application and the overall system design requirements. Those skilled in the art can implement the described functionality using various methods for each specific application, but such implementation should not be construed as exceeding the scope of protection of the embodiments of this disclosure.

[0637] This disclosure also provides a readable storage medium having instructions stored thereon that, when executed by a computer, implement the functions of any of the above method embodiments.

[0638] This disclosure also provides a computer program product that, when executed by a computer, implements the functions of any of the above method embodiments.

[0639] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this disclosure are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program can be transferred from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device such as a server or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVDs)), or semiconductor media (e.g., solid-state disks (SSDs)).

[0640] Those skilled in the art will understand that the various numerical designations such as "first," "second," etc., used in this disclosure are merely for the convenience of description and are not intended to limit the scope of the embodiments of this disclosure, nor do they indicate the order of events.

[0641] At least one of the features described in this disclosure can also be described as one or more, and multiple features can be two, three, four or more, and this disclosure does not impose any limitations. In the embodiments of this disclosure, for a technical feature, the technical features in that technical feature are distinguished by "first", "second", "third", "A", "B", "C" and "D", etc., and there is no sequential order or size order among the technical features described by "first", "second", "third", "A", "B", "C" and "D".

[0642] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0643] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A configuration method for PRACH transmission using multiple physical random access channels, characterized in that, The method is executed by a network-side device, and the method includes: Send a multi-PRACH transmission configuration to the terminal device, wherein the multi-PRACH transmission configuration is used to indicate the PRACH transmission resource configuration of the TDM / FDM multiplexing mode adopted by the terminal device when sending multiple PRACHs; Receive multiple PRACH messages sent by the terminal device through the multiplexing method; The step of sending the multiple PRACH transmission configuration to the terminal device includes: Send the physical random access channel configuration index prach-ConfigurationIndex and / or random access SSB transmission template index ra-ssb-OccasionMaskIndex to the terminal device, wherein the prach-ConfigurationIndex and / or ra-ssb-OccasionMaskIndex carry the time-domain location configuration of the TDM multiplexing. Alternatively, sending the FDM multiplexing configuration of the multi-PRACH transmission to the terminal device includes at least one of the following: Send a first multiple PRACH transmission configuration to the terminal device, wherein the first multiple PRACH transmission configuration is used to indicate that the multiplexing method is the FDM multiplexing mode; Send the FDM multiplexing rule configuration to the terminal device; Send FDM location configuration to the terminal device; The time-domain location configuration of the RO for FDM multiplexing is sent to the terminal device.

2. The method according to claim 1, characterized in that, The method further includes: The frequency domain location configuration of the TDM multiplexing is sent to the terminal device.

3. The method according to claim 2, characterized in that, The step of sending the time-domain location configuration of the TDM multiplexing to the terminal device includes at least one of the following: Send the time-domain location configuration of the TDM multiplexed random access opportunity (RO) to the terminal device at equal intervals; The location bitmap (BITMAP) is configured to be sent to the terminal device, wherein each bit of the BITMAP corresponds to a time-domain location of a RO.

4. The method according to claim 1, characterized in that, The step of sending the frequency domain location configuration of the TDM multiplexing to the terminal device includes at least one of the following: Send the configuration of the fixed frequency domain position of the TDM multiplexing to the terminal device; The frequency domain position change configuration of the TDM multiplexing is sent to the terminal device.

5. The method according to claim 4, characterized in that, The step of sending the frequency domain position change configuration of the TDM multiplexing to the terminal device includes at least one of the following: The first frequency domain position change configuration of the TDM multiplexing is sent to the terminal device, wherein the first frequency domain position change configuration is used to indicate that the frequency domain position change is decreasing from the highest frequency domain position in the first frequency domain position set; The second frequency domain position change configuration of the TDM multiplexing is sent to the terminal device, wherein the second frequency domain position change configuration is used to indicate that the frequency domain position change is incremented starting from the lowest frequency domain position in the first frequency domain position set; Send the third frequency domain position change configuration of the TDM multiplexing to the terminal device, wherein the third frequency domain position change configuration is used to indicate that the frequency domain position change is to first configure the highest frequency domain position in the first frequency domain position set, then configure the lowest frequency domain position, configure the second highest frequency domain position, then configure the second lowest frequency domain position, and so on, until all frequency domain positions in the first frequency domain position set are configured. The fourth frequency domain position change configuration of the TDM multiplexing is sent to the terminal device, wherein the fourth frequency domain position change configuration is used to indicate that the frequency domain position change is to first configure the lowest frequency domain position in the first frequency domain position set, then configure the highest frequency domain position, configure the second lowest frequency domain position, then configure the second highest frequency domain position, and so on, until all frequency domain positions are configured.

6. The method according to claim 1, characterized in that, The transmission of FDM location configuration to the terminal device includes at least one of the following: Send the available FDM location BITMAP configuration to the terminal device; Send the configuration of the starting position offset of the available FDM position to the terminal device; The configuration of the interval between FDM locations is sent to the terminal device.

7. The method according to claim 1, characterized in that, The time-domain location configuration of the RO for transmitting FDM multiplexing to the terminal device includes at least one of the following: Send the equally spaced time-domain position configuration of the RO multiplexed by the FDM to the terminal device; The location BITMAP configuration is sent to the terminal device, wherein each bit of the BITMAP corresponds to a time-domain location of a RO.

8. The method according to claim 7, characterized in that, The time-domain location configuration of the RO for transmitting FDM multiplexing to the terminal device includes: Send prach-ConfigurationIndex and / or ra-ssb-OccasionMaskIndex to the terminal device, wherein the prach-ConfigurationIndex carries the time-domain location configuration of the RO of the FDM multiplexing, and the ra-ssb-OccasionMaskIndex carries the time-domain location configuration of the RO of the FDM multiplexing.

9. The method according to claim 1, characterized in that, The transmission of the TDM and FDM multiplexing configurations for the multi-PRACH transmission to the terminal device includes at least one of the following: Send a second multiple PRACH transmission configuration to the terminal device, wherein the second multiple PRACH transmission configuration is used to indicate that the multiplexing method is the TDM and FDM multiplexing mode; Send the time-domain location configuration of TDM multiplexing to the terminal device; Send the frequency domain location configuration of FDM multiplexing to the terminal device; The FDM multiplexing rule configuration is sent to the terminal device.

10. The method according to claim 9, characterized in that, The time-domain location configuration of the TDM multiplexing includes at least one of the following: The equidistant temporal location configuration of the ROs in the FDM multiplexing; Location BITMAP configuration, wherein each bit of the BITMAP corresponds to the time domain location of a RO.

11. The method according to claim 10, characterized in that, The configuration of the time-domain location for transmitting FDM multiplexing to the terminal device includes: Send prach-ConfigurationIndex and / or ra-ssb-OccasionMaskIndex to the terminal device, wherein the prach-ConfigurationIndex carries the time-domain location configuration of the RO of the FDM multiplexing, and the ra-ssb-OccasionMaskIndex carries the time-domain location configuration of the RO of the FDM multiplexing.

12. The method according to claim 9, characterized in that, The frequency domain location configuration of the FDM multiplexing includes at least one of the following: BITMAP configuration for available FDM locations; Configuration of the starting position offset of the available FDM positions; Interval configuration between FDM locations.

13. The method according to claim 1, characterized in that, The step of transmitting the TDM and FDM multiplexing configurations for the multi-PRACH transmission to the terminal device includes: The configuration of the number of multiple PRACH transmissions for FDM multiplexing is sent to the terminal device.

14. The method according to claim 13, characterized in that, The FDM multiplexing PRACH transmission quantity configuration is used to indicate that the FDM multiplexing PRACH transmission quantity is the number of ROs of the FDM in the PRACH configuration.

15. The method according to claim 1, characterized in that, The step of sending the multi-PRACH transmission configuration to the terminal device includes: Send a multi-PRACH transmission configuration to the terminal device, wherein the multi-PRACH transmission configuration includes a first multi-PRACH transmission configuration based on non-contention-based random access CFRA and / or a second multi-PRACH transmission configuration based on contention-based random access CBRA.

16. The method according to claim 15, characterized in that, The CFRA triggering method includes at least one of the following: Physical downlink control channel (PDCCH) triggered; Switch trigger; Beam failure recovery trigger; PScell ​​adds or changes triggers.

17. The method according to claim 16, characterized in that, The step of sending the multiple PRACH transmission configuration to the terminal device includes: In response to the CFRA triggered by the PDCCH, a PDCCH order is sent to the terminal device, the PDCCH order carrying the first PRACH transmission configuration.

18. The method according to claim 16, characterized in that, The step of sending the multiple PRACH transmission configuration to the terminal device includes: In response to the PScell ​​adding or changing the triggered CFRA, a dedicated random access configuration RACH-ConfigDedicated is sent to the terminal device, wherein the CFRA configuration of RACH-ConfigDedicated carries the first multiple PRACH transmission configuration.

19. The method according to claim 16, characterized in that, The step of sending the multiple PRACH transmission configuration to the terminal device includes: In response to the CFRA triggered by the handover, RACH-ConfigDedicated is sent to the terminal device, wherein the CFRA configuration of RACH-ConfigDedicated carries the first multiple PRACH transmission configuration.

20. The method according to claim 16, characterized in that, The step of sending the multiple PRACH transmission configuration to the terminal device includes: In response to the CFRA triggered by the beam failure recovery, a beam failure recovery configuration BeamFailureRecoveryConfig is sent to the terminal device, the BeamFailureRecoveryConfig carrying the first multiple PRACH transmission configuration.

21. The method according to claim 15, characterized in that, The step of sending the multiple PRACH transmission configuration to the terminal device includes: The second PRACH transmission configuration is sent to the terminal device via broadcast signaling or via dedicated signaling.

22. The method according to claim 21, characterized in that, The broadcast signaling includes System Message Block 1 (SIB1).

23. The method according to claim 21, characterized in that, The dedicated signaling includes at least one of the following: Radio Resource Control (RRC) Reconfiguration message; RRC resumes the RRCResume message; RRC releases the RRCRelease message; RRC establishes the RRCSetup message.

24. The method according to claim 15, characterized in that, The step of sending the multiple PRACH transmission configuration to the terminal device includes: The common random access channel (RACH) configuration is sent to the terminal device, wherein the RACH configuration carries the second multiple PRACH transmission configuration.

25. The method according to claim 5, characterized in that, The PRACH configuration includes public RACH resources configured separately on each portion bandwidth BWP.

26. The method according to claim 25, characterized in that, Sending the RACH configuration to the terminal device includes: The first random access common configuration RACH-ConfigCommon in the initial BWP configuration of SIB1 is sent to the terminal device, wherein the first RACH-ConfigCommon carries the RACH configuration.

27. The method according to claim 24, characterized in that, Sending the RACH configuration to the terminal device includes: The second RACH-ConfigCommon of the BWP configuration, which sends the RRCReconfiguration message, is sent to the terminal device, wherein the second RACH-ConfigCommon carries the RACH configuration.

28. The method according to claim 15, characterized in that, The step of sending the multiple PRACH transmission configuration to the terminal device includes: Send a dedicated RACH configuration to the terminal device, wherein the dedicated RACH configuration carries the second multiple RACH transmission configuration.

29. The method according to claim 28, characterized in that, The transmission of the dedicated RACH configuration to the terminal device includes: In response to a CBRA triggered by beam failure recovery, a beam failure recovery configuration BeamFailureRecoveryConfig is sent to the terminal device, wherein the BeamFailureRecoveryConfig carries the second multi-PRACH transmission configuration configured in the dedicated RACH configuration.

30. The method according to claim 28, characterized in that, The step of sending the multiple PRACH transmission configuration to the terminal device includes: In response to a CBRA triggered by adding or changing the PScell, a dedicated random access configuration RACH-ConfigDedicated is sent to the terminal device, wherein the RACH-ConfigDedicated carries the second multiple PRACH transport configuration configured in the dedicated RACH configuration.

31. The method according to claim 28, characterized in that, The step of sending the multiple PRACH transmission configuration to the terminal device includes: In response to a CBRA triggered by a handover, a RACH-ConfigDedicated is sent to the terminal device, the RACH-ConfigDedicated carrying the second multi-PRACH transport configuration configured in the dedicated RACH configuration.

32. The method according to claim 16, characterized in that, The step of sending the multiple PRACH transmission configuration to the terminal device includes: The RACH configuration of the feature combination is sent to the terminal device, wherein the RACH configuration of the feature combination carries the second multiple PRACH transmission configuration.

33. The method according to claim 32, characterized in that, The feature combination includes a Coverage Enhancement feature, wherein the Coverage Enhancement feature is used to indicate a Coverage Enhancement feature that supports multiple PRACH transmissions configured for CBRA.

34. The method according to claim 1, characterized in that, The method further includes: The terminal device receives PRACH capability information sent by the terminal device, wherein the PRACH capability information is used to indicate the capability information of the terminal device supporting multiplexing mode.

35. The method according to claim 34, characterized in that, The receipt of PRACH capability information sent by the terminal device includes: The terminal device receives UECapabilityInformation, which carries the PRACH capability information.

36. The method according to claim 34, characterized in that, The PRACH capability information includes at least one of the following: PRACH capability information supporting FDM multi-PRACH transmission; PRACH capability information supporting TDM multi-PRACH transmission; PRACH capability information supporting PRACH transmission in both FDM and TDM; PRACH capability information supporting FDM frequency hopping.

37. The method according to claim 34, characterized in that, After receiving the PRACH capability information sent by the terminal device, the method further includes: Based on the PRACH capability information, the multi-PRACH transmission configuration is configured for the terminal device via dedicated signaling.

38. A configuration method for multiple PRACH transmissions, characterized in that, The method is executed by a terminal device, and the method includes: The terminal device receives a multi-PRACH transmission configuration sent by a network-side device. The multi-PRACH transmission configuration indicates the PRACH transmission resource configuration of the TDM / FDM multiplexing mode used when transmitting multiple PRACHs. The multi-PRACH transmission configuration includes a physical random access channel configuration index (prach-ConfigurationIndex) and / or a random access SSB transmission template index (ra-ssb-OccasionMaskIndex), wherein the prach-ConfigurationIndex and / or ra-ssb-OccasionMaskIndex carries the time-domain location configuration of the TDM multiplexing. Alternatively, the multi-PRACH transmission configuration includes at least one of the following: a first multi-PRACH transmission configuration, an FDM multiplexing rule configuration, an FDM location configuration, and a time-domain location configuration of the RO of the FDM multiplexing mode, indicating that the multiplexing mode is the FDM multiplexing mode. Multiple PRACH messages are sent to the network-side device using the multiplexing method.

39. The method according to claim 38, characterized in that, Before receiving the multi-PRACH transmission configuration sent by the network-side device, the following is also included: Send PRACH capability information to the network-side device, wherein the PRACH capability information is used to indicate the capability information of the terminal device supporting multiplexing mode.

40. The method according to claim 39, characterized in that, Sending PRACH capability information to the network-side device includes: Send UECapabilityInformation to the network-side device, wherein the UECapabilityInformation carries the PRACH capability information.

41. The method according to claim 39, characterized in that, The PRACH capability information includes at least one of the following: PRACH capability information supporting FDM multi-PRACH transmission; PRACH capability information supporting TDM multi-PRACH transmission; PRACH capability information supporting PRACH transmission in both FDM and TDM; PRACH capability information supporting FDM frequency hopping.

42. The method according to claim 38, characterized in that, The multi-PRACH transport configuration includes a first multi-PRACH transport configuration based on non-contention-based random access CFRA and / or a second multi-PRACH transport configuration based on contention-based random access CBRA, wherein the CFRA is triggered by handover triggering.

43. The method according to claim 42, characterized in that, The network-side device receives a RACH-ConfigDedicated message, wherein the CFRA configuration of the RACH-ConfigDedicated message carries the first multiple PRACH transmission configuration.

44. The method according to claim 42, characterized in that, The multi-PRACH transmission configuration received from the network-side device includes: Receive a public random access channel (RACH) configuration, wherein the RACH configuration carries the second multiple PRACH transmission configuration.

45. The method according to claim 44, characterized in that, The PRACH configuration includes public RACH resources configured separately on each portion bandwidth BWP.

46. ​​The method according to claim 45, characterized in that, The configuration for receiving the Common Random Access Channel (RACH) includes: Receive the first random access common configuration RACH-ConfigCommon from the initial BWP configuration of SIB1, wherein the first RACH-ConfigCommon carries the RACH configuration.

47. The method according to claim 44, characterized in that, The configuration for receiving the Common Random Access Channel (RACH) includes: The second RACH-ConfigCommon of the BWP configuration that receives the RRCReconfiguration message, wherein the second RACH-ConfigCommon carries the RACH configuration.

48. The method according to claim 42, characterized in that, The multi-PRACH transmission configuration received from the network-side device includes: Receive RACH-ConfigDedicated, which carries the second multiple PRACH transport configuration configured in the dedicated RACH configuration.

49. The method according to claim 42, characterized in that, The multi-PRACH transmission configuration sent by the receiving network-side device. Receive a RACH configuration of a feature combination, wherein the RACH configuration of the feature combination carries the second multiple PRACH transport configuration.

50. The method according to claim 49, characterized in that, The feature combination includes a Coverage Enhancement feature, wherein the Coverage Enhancement feature is used to indicate a Coverage Enhancement feature that supports multiple PRACH transmissions configured for CBRA.

51. The method according to claim 38, characterized in that, A single PRACH transmission includes the continuous transmission of multiple preambles in the time domain; and / or, the ROs at Y frequency domain positions at the second time domain position of the RO used for the multiple PRACH transmission transmit PRACH, wherein the Y frequency domain positions are freely selected, or the frequency domain positions used by the first time domain position of the RO of the multiple PRACH transmission are adopted, or the Y frequency domain positions are selected according to the frequency domain position variation configuration after the previously selected X frequency domain positions.

52. A multi-PRACH transmission configuration device, characterized in that, The device includes: The sending module is used to send a multi-PRACH transmission configuration to the terminal device, wherein the multi-PRACH transmission configuration is used to indicate the PRACH transmission resource configuration of the TDM / FDM multiplexing mode adopted by the terminal device when sending multiple PRACHs; The receiving module is configured to receive multiple PRACH messages sent by the terminal device through the multiplexing method; The sending module is specifically used for: Send the physical random access channel configuration index prach-ConfigurationIndex and / or random access SSB transmission template index ra-ssb-OccasionMaskIndex to the terminal device, wherein the prach-ConfigurationIndex and / or ra-ssb-OccasionMaskIndex carry the time-domain location configuration of the TDM multiplexing. Alternatively, the sending module is specifically used for, Send a first multiple PRACH transmission configuration to the terminal device, wherein the first multiple PRACH transmission configuration is used to indicate that the multiplexing method is the FDM multiplexing mode; Send the FDM multiplexing rule configuration to the terminal device; Send FDM location configuration to the terminal device; The time-domain location configuration of the RO for FDM multiplexing is sent to the terminal device.

53. A multi-PRACH transmission configuration device, characterized in that, The device includes: A receiving module is configured to receive a multi-PRACH transmission configuration sent by a network-side device. The multi-PRACH transmission configuration indicates the PRACH transmission resource configuration of the TDM / FDM multiplexing mode used by the terminal device when transmitting multiple PRACHs. The multi-PRACH transmission configuration includes a physical random access channel configuration index (prach-ConfigurationIndex) and / or a random access SSB transmission template index (ra-ssb-OccasionMaskIndex), wherein the prach-ConfigurationIndex and / or ra-ssb-OccasionMaskIndex carries the time-domain location configuration of the TDM multiplexing. Alternatively, the multi-PRACH transmission configuration includes at least one of the following: a first multi-PRACH transmission configuration, an FDM multiplexing rule configuration, an FDM location configuration, and a time-domain location configuration of the RO of the FDM multiplexing mode, indicating that the multiplexing mode is the FDM multiplexing mode. The sending module is used to send multiple PRACH messages to the network-side device via the multiplexing method.

54. A network-side device, characterized in that, The network-side device includes a processor and a memory, wherein the memory stores a computer program, and the processor executes the computer program stored in the memory to cause the network-side device to perform the method as described in any one of claims 1 to 37.

55. A terminal device, characterized in that, The terminal device includes a processor and a memory, wherein the memory stores a computer program, and the processor executes the computer program stored in the memory to cause the terminal device to perform the method as described in any one of claims 38 to 51.

56. A communication device, characterized in that, include: Processor and interface circuitry, among which The interface circuit is used to receive code instructions and transmit them to the processor; The processor is configured to run the code instructions to perform the method as described in any one of claims 1 to 37.

57. A communication device, characterized in that, include: Processor and interface circuitry, among which The interface circuit is used to receive code instructions and transmit them to the processor; The processor is configured to run the code instructions to perform the method as described in any one of claims 38 to 51.

58. A computer-readable storage medium, characterized in that, It is used to store instructions that, when executed, cause the method as described in any one of claims 1 to 37 to be implemented.

59. A computer-readable storage medium, characterized in that, It is used to store instructions that, when executed, cause the method as described in any one of claims 38 to 51 to be implemented.

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