User terminal identification method, apparatus and system, and storage medium

Abstract

The present disclosure relates to a user terminal identification method, device and system, and a storage medium. The user terminal identification method comprises: a base station configuring a first PRACH transmission occasion for a first user terminal, wherein the first user terminal is a user terminal supporting Msg3 repeated transmission, so that the first user terminal transmits a preamble on the first PRACH transmission occasion; and the base station determining that the user terminal transmitting the corresponding preamble is the first user terminal in the case that the base station decodes the preamble on the first PRACH transmission occasion. The present disclosure can enable the base station to identify the user terminal supporting Msg3 repeated transmission, so as to configure appropriate time-frequency resources for the corresponding user terminal, thereby improving the Msg3 coverage performance while ensuring the utilization efficiency of the uplink resources.

Description

Technical Field

[0001] This disclosure relates to the field of wireless communication technology, and in particular to a user terminal identification method, apparatus and system, and storage medium. Background Technology

[0002] In the current version of the 5G NR (New Radio) protocol, the contention-based 4-step initial random access mainly includes the following steps:

[0003] 1. The user sends a preamble at the corresponding PRACH (Physical Random Access Channel) transmission time.

[0004] 2. Users listen for RAR (Random Access Response) messages sent by the base station within the corresponding time window.

[0005] 3. When a user detects a RAR message sent by the base station, if the user identifies its previously sent Preamble in the RAR message, then according to the configuration of the RAR grant information, the user will transmit the Msg3 message (the third message of the random access procedure) on the corresponding time and frequency resources.

[0006] 4. The user detects the Msg4 message (the fourth message in the random access procedure) transmitted by the base station for conflict resolution.

[0007] Because 5G systems are deployed on higher frequency bands, uplink coverage will be affected to some extent, including the limited coverage of Msg3. Summary of the Invention

[0008] The applicant discovered through research that a feasible solution to the coverage limitation problem of Msg3 is to improve coverage performance by repeating Msg3 transmissions. However, according to the current NR standard, repeating Msg3 transmissions is not yet supported.

[0009] In the process of NR standard evolution, if the Msg3 retransmission mechanism is introduced, the first thing to consider is how the base station can identify users who support Msg3 retransmission, so as to allocate the necessary time and frequency resources to these users to improve the coverage performance of Msg3.

[0010] In view of at least one of the above technical problems, this disclosure provides a user terminal identification method, apparatus and system, and storage medium, which enables a base station to identify user terminals that support Msg3 repetitive transmission.

[0011] According to one aspect of this disclosure, a user terminal identification method is provided, comprising:

[0012] The base station configures the first physical random access channel (PRACH) transmission timing for the first user terminal, wherein the first user terminal is a user terminal that supports the repeated transmission of the third message Msg3 of the random access procedure, so that the first user terminal can send a preamble at the first PRACH transmission timing.

[0013] If the base station decodes the preamble during the first PRACH transmission, it determines that the user terminal that sent the corresponding preamble is the first user terminal.

[0014] In some embodiments of this disclosure, the user terminal identification method further includes:

[0015] The base station configures a second PRACH transmission timing for the second user terminal, wherein the second user terminal is a user terminal that does not support repeated transmission of Msg3, and the second PRACH transmission timing is the PRACH transmission timing adopted by the second user terminal.

[0016] If the base station decodes the preamble during the second PRACH transmission, it determines that the user terminal that sent the corresponding preamble is the second user terminal.

[0017] In some embodiments of this disclosure, the base station uses frequency division or time division to distinguish between the first PRACH transmission timing and the second PRACH transmission timing.

[0018] In some embodiments of this disclosure, the base station distinguishes between the first transmission RACH timing and the second transmission RACH timing using a time-division multiplexing method, including:

[0019] The base station configures a first PRACH configuration index and a second PRACH configuration index in the first system information block. The first PRACH configuration index is used to indicate the PRACH transmission configuration of the first user terminal, and the second PRACH configuration index is used to indicate the PRACH transmission configuration of the second user terminal. The time domain resources configured by the first PRACH configuration index and the second PRACH configuration index do not overlap, so that the first user terminal can send a preamble at the first PRACH transmission time according to the configuration of the first PRACH configuration index.

[0020] If the base station detects a preamble during the first PRACH transmission, it determines that the user terminal that sent the corresponding preamble is the first user terminal.

[0021] In some embodiments of this disclosure, the base station distinguishes between the first transmission RACH timing and the second transmission RACH timing using a frequency division method, including:

[0022] The base station configures a second PRACH configuration index in the first system information block, and configures the frequency domain start position or frequency domain offset value of the first PRACH transmission timing. The second PRACH configuration index is used to indicate the PRACH transmission configuration of the second user terminal, and the frequency domain start position or frequency domain offset value of the first PRACH transmission timing is used to indicate the frequency domain offset of the first user terminal and the second user terminal on the PRACH transmission timing. This allows the first user terminal to determine the time-frequency resource position of the first PRACH transmission timing based on the configuration of the second PRACH configuration index and the frequency domain start position or frequency domain offset value of the first PRACH transmission timing, and to send a preamble on the first PRACH transmission timing.

[0023] If the base station detects a preamble during the first PRACH transmission, it determines that the user terminal that sent the corresponding preamble is the first user terminal.

[0024] In some embodiments of this disclosure, the frequency domain start position or frequency domain offset value for configuring the base station to transmit the first PRACH includes:

[0025] The base station and the first user terminal predefine the frequency domain start position or frequency domain offset value.

[0026] According to another aspect of this disclosure, a user terminal identification method is provided, comprising:

[0027] The base station configures a first physical random access channel (PRACH) transmission opportunity and a second PRACH transmission opportunity for the first user terminal. The first user terminal is a user terminal that supports the repeated transmission of the third message Msg3 in the random access procedure, so that the first user terminal can send a first preamble on the second PRACH transmission opportunity and send a second preamble on the first PRACH transmission opportunity. The second preamble is the pairing code of the first preamble. The first PRACH transmission opportunity is selected by the first user terminal from the PRACH transmission opportunities that the second user terminal cannot use. The second user terminal is a user terminal that does not support the repeated transmission of Msg3.

[0028] If the base station simultaneously decodes the first preamble during the second PRACH transmission and decodes the second preamble during the first PRACH transmission, it determines that the user terminal that sends the first preamble and the second preamble is the first user terminal.

[0029] According to another aspect of this disclosure, a user terminal identification method is provided, comprising:

[0030] The first user terminal receives the first physical random access channel (PRACH) transmission timing configured by the base station, wherein the first user terminal is a user terminal that supports the repeated transmission of the third message Msg3 of the random access procedure.

[0031] The first user terminal sends a preamble during the first PRACH transmission, so that the base station can determine the user terminal that sent the preamble is the first user terminal if it decodes the preamble during the first PRACH transmission.

[0032] In some embodiments of this disclosure, the timing for the first user terminal to receive the first physical random access channel (PRACH) transmission configured by the base station includes:

[0033] The first user terminal receives and decodes the first system information block sent by the base station. The base station configures a first PRACH configuration index and a second PRACH configuration index in the first system information block. The first PRACH configuration index is used to indicate the PRACH transmission configuration of the first user terminal, and the second PRACH configuration index is used to indicate the PRACH transmission configuration of the second user terminal. The second user terminal is a user terminal that does not support Msg3 repeated transmission. The second PRACH transmission timing is the PRACH transmission timing adopted by the second user terminal. The time domain resources configured by the first PRACH configuration index and the second PRACH configuration index do not overlap.

[0034] In some embodiments of this disclosure, the first user terminal sends a preamble during the first PRACH transmission, including

[0035] The first user terminal sends a preamble during the first PRACH transmission according to the configuration of the first PRACH configuration index.

[0036] In some embodiments of this disclosure, the timing for the first user terminal to receive the first physical random access channel (PRACH) transmission configured by the base station includes:

[0037] The first user terminal receives and decodes the first system information block sent by the base station, and receives the frequency domain start position or frequency domain offset value of the first PRACH transmission timing configured by the base station. The base station configures a second PRACH configuration index in the first system information block. The second PRACH configuration index is used to indicate the PRACH transmission configuration of the second user terminal. The frequency domain start position or frequency domain offset value of the first PRACH transmission timing is used to indicate the frequency domain offset of the first user terminal and the second user terminal in the PRACH transmission timing.

[0038] In some embodiments of this disclosure, the first user terminal sends a preamble during the first PRACH transmission, including

[0039] The first user terminal determines the time-frequency resource location of the first PRACH transmission timing based on the configuration of the second PRACH configuration index and the frequency domain start position or frequency domain offset value of the first PRACH transmission timing, and sends a preamble on the first PRACH transmission timing.

[0040] In some embodiments of this disclosure, the frequency domain start position or frequency domain offset value of the first PRACH transmission timing configured by the receiving base station includes:

[0041] The first user terminal and the base station predefine the frequency domain start position or frequency domain offset value.

[0042] According to another aspect of this disclosure, a user terminal identification method is provided, comprising:

[0043] The first user terminal receives the first physical random access channel (PRACH) transmission timing and the second PRACH transmission timing configured by the base station, wherein the first user terminal is a user terminal that supports the repeated transmission of the third message Msg3 in the random access procedure.

[0044] The first user terminal sends a first preamble during the second PRACH transmission timing and a second preamble during the first PRACH transmission timing. The second preamble is a pairing code of the first preamble. The first PRACH transmission timing is selected by the first user terminal from among the PRACH transmission timings that the second user terminal cannot use. The second user terminal is a user terminal that does not support Msg3 repetitive transmission. In order for the base station to determine that the user terminal sending the first preamble and the second preamble is the first user terminal when the base station decodes the first preamble during the second PRACH transmission timing and decodes the second preamble during the first PRACH transmission timing.

[0045] According to another aspect of this disclosure, a base station is provided, comprising:

[0046] The configuration module is used to configure the first physical random access channel (PRACH) transmission timing for the first user terminal, wherein the first user terminal is a user terminal that supports the repeated transmission of the third message Msg3 of the random access procedure, so that the first user terminal can send a preamble at the first PRACH transmission timing.

[0047] The identification module is used to determine that the user terminal sending the corresponding preamble is the first user terminal when the preamble is decoded during the first PRACH transmission.

[0048] In some embodiments of this disclosure, the base station is used to perform operations implementing the user terminal identification method as described in any of the above embodiments.

[0049] According to another aspect of this disclosure, a first user terminal is provided, comprising:

[0050] The configuration receiving module is used to receive the transmission timing of the first physical random access channel (PRACH) configured by the base station, wherein the first user terminal is a user terminal that supports the repeated transmission of the third message Msg3 of the random access procedure.

[0051] The transmission module is used to send a preamble during the first PRACH transmission, so that if the base station decodes the preamble during the first PRACH transmission, it can determine that the user terminal that sent the corresponding preamble is the first user terminal.

[0052] The first user terminal is used to perform operations that implement the user terminal identification method as described in any of the above embodiments.

[0053] According to another aspect of this disclosure, a computer apparatus is provided, comprising:

[0054] Memory, used to store instructions;

[0055] A processor is configured to execute the instructions, causing the computer device to perform operations implementing the user terminal identification method as described in any of the above embodiments.

[0056] According to another aspect of this disclosure, a user terminal identification system is provided, including a base station as described in any of the above embodiments and a first user terminal as described in any of the above embodiments.

[0057] According to another aspect of this disclosure, a non-transitory computer-readable storage medium is provided, wherein the non-transitory computer-readable storage medium stores computer instructions that, when executed by a processor, implement the user terminal identification method as described in any of the above embodiments.

[0058] This disclosure enables base stations to identify user terminals that support repeated Msg3 transmissions, thereby configuring appropriate time-frequency resources for the corresponding user terminals, improving Msg3 coverage performance while ensuring the utilization efficiency of uplink resources. Attached Figure Description

[0059] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0060] Figure 1 This is a diagram illustrating the relationship between the SSB index and PRACH.

[0061] Figure 2 These are schematic diagrams illustrating some embodiments of the user terminal identification method disclosed herein.

[0062] Figure 3 The diagram illustrates some other embodiments of the user terminal identification method disclosed herein.

[0063] Figure 4 This is a schematic diagram of some embodiments of the user terminal identification method disclosed herein.

[0064] Figure 5 This is a schematic diagram of the first PRACH transmission timing and the second PRACH transmission timing in some embodiments of this disclosure.

[0065] Figure 6 This is a schematic diagram of some embodiments of the user terminal identification method disclosed herein.

[0066] Figure 7 This is a schematic diagram of some embodiments of the user terminal identification method disclosed herein.

[0067] Figure 8 This is a schematic diagram of some embodiments of the user terminal identification method disclosed herein.

[0068] Figure 9 This is a schematic diagram of some embodiments of the user terminal identification method disclosed herein.

[0069] Figure 10 This is a schematic diagram of some embodiments of the base station disclosed herein.

[0070] Figure 11 This is a schematic diagram of some embodiments of the first user terminal disclosed herein.

[0071] Figure 12 These are schematic diagrams illustrating some embodiments of the user terminal identification system disclosed herein.

[0072] Figure 13 This is a schematic diagram of the structure of some embodiments of the computer device disclosed herein. Detailed Implementation

[0073] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this disclosure or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0074] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of this disclosure.

[0075] At the same time, it should be understood that, for ease of description, the dimensions of the various parts shown in the accompanying drawings are not drawn according to actual scale.

[0076] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0077] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0078] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0079] The configuration method for related PRACH transmission technologies may include the following steps:

[0080] 1. During initial random access, the relevant PRACH configuration information is indicated by the prach-ConfigurationIndex configuration index of SIB1 (system information block 1). The value of this parameter is an index value from 0 to 255, corresponding to the row index in the random access configuration table, specifically indicating the following information: Preamble format, system frame number of PRACH transmission, subframe number, starting OFDM (Orthogonal frequency-division multiplexing) symbol position, number of time slots used for PRACH transmission in a subframe, number of PRACH time-domain transmission times in a PRACH time slot, and number of PRACH continuous symbols.

[0081] 2. The frequency of PRACH transmission is indicated by the SIB1 parameter msg1-FDM, which can be configured as {1,2,4,8}.

[0082] 3. The total number of PRACH transmission opportunities within a time slot is determined by the number of time-domain transmission opportunities and the number of frequency-domain transmission opportunities.

[0083] 4. The parameter `ssb-perRACH-Occasion And CB-Preambles Per SSB` in SIB1 indicates the number of PRACH transmission opportunities associated with each SSB (Synchronization Signal Block) index. Values ​​include `{oneEighth, oneFourth, oneHalf, one, two, four, eight, sixteen}`. For example, the value `oneHalf` indicates that one SSB index is associated with two PRACH transmission opportunities, and the value `two` indicates that two SSB indices are associated with one PRACH transmission opportunity. Additionally, each value corresponds to an enumerated set of values ​​indicating the number of contention-based random access preambles associated with each SSB index. For example, the value `oneHalf{n4}` indicates that one SSB index is associated with two PRACH transmission opportunities, and each SSB index corresponds to four contention-based preambles.

[0084] 5. As described above, each SSB index is associated with at least one PRACH transmission opportunity. The base station can indirectly obtain SSB index information by detecting the PRACH transmission opportunity used by the user. When the system is configured with N SSB indices, these SSB indices are sequentially associated with the corresponding PRACH transmission opportunities according to certain rules. After completing one round of association, if there are remaining PRACH transmission opportunities, these SSB indices will continue to be associated with the remaining PRACH transmission opportunities until the remaining PRACH transmission opportunities are insufficient to support a full round of SSB index association mapping. At this point, according to existing standards, the remaining PRACH transmission opportunities will not be used for PRACH transmission.

[0085] 6. Taking msg1-FDM=4, ssb-perRACH-Occasion=1, N=3, PRACH period of 10ms, and PRACH time domain transmission opportunities of 2 as an example, Figure 1 This is a diagram illustrating the relationship between the SSB index and PRACH. (Example) Figure 1 As shown, at this time, PRACH transmission timings #6 and #7 are not used for PRACH transmission.

[0086] Figure 2 This is a schematic diagram of some embodiments of the user terminal identification method of this disclosure. Preferably, this embodiment can be executed by the base station or the user terminal identification system of this disclosure. The method includes at least one of the following steps, wherein:

[0087] Step 21: The base station configures the first physical random access channel (PRACH) transmission timing for the first user terminal, wherein the first user terminal (new user terminal) is a user terminal that supports the repeated transmission of the third message Msg3 of the random access procedure, so that the first user terminal can send the preamble during the first PRACH transmission timing.

[0088] Step 22: If the base station decodes the preamble during the first PRACH transmission, it determines that the user terminal that sent the corresponding preamble is the first user terminal.

[0089] In some embodiments of this disclosure, the user terminal identification method may further include: the base station configuring a second PRACH transmission timing for the second user terminal (old user terminal), wherein the second user terminal is a user terminal that does not support repeated transmission of Msg3, and the second PRACH transmission timing is the PRACH transmission timing adopted by the second user terminal; when the base station decodes the preamble at the second PRACH transmission timing, it determines that the user terminal that sends the corresponding preamble is the second user terminal.

[0090] Thus, the base station has completed the identification of the first user terminal and the second user terminal, and can configure the corresponding Msg3 retransmission resources for the first user terminal.

[0091] In some embodiments of this disclosure, the base station uses frequency division or time division to distinguish between the first PRACH transmission timing and the second PRACH transmission timing.

[0092] Figure 3 The diagram illustrates some other embodiments of the user terminal identification method of this disclosure. Preferably, this embodiment can be executed by the user terminal identification system of this disclosure. Figure 3 In this embodiment, the base station uses a time-division multiplexing method to distinguish between the first PRACH transmission timing and the second PRACH transmission timing. The method includes at least one of the following steps:

[0093] Step 31: The base station configures two PRACH configuration indices in the first system information block SIB1, namely, the first PRACH configuration index (prach-ConfigurationIndex1) and the second PRACH configuration index (prach-ConfigurationIndex). The first PRACH configuration index is used to indicate the PRACH transmission configuration of the first user terminal (new UE) and the transmission configuration index of the first PRACH (new PRACH). The second PRACH configuration index is used to indicate the PRACH transmission configuration of the second user terminal (old UE).

[0094] In some embodiments of this disclosure, the time-domain resources configured by the first PRACH configuration index and the second PRACH configuration index do not overlap and there are no other additional restrictions. This ensures that the PRACH transmission between the new UE and the old UE is time-division, thereby enabling the base station to distinguish between the new and old UEs.

[0095] Step 32: The user terminal obtains the configuration information for PRACH transmission and the association information between PRACH transmission timing and SSB index by decoding the SIB1 information.

[0096] Step 33: The first user terminal sends a preamble during the first PRACH transmission according to the configuration of the first PRACH configuration index.

[0097] Step 34: If the base station detects a preamble during the first PRACH transmission time configured by the first PRACH configuration index, it determines that the user terminal sending the corresponding preamble is the first user terminal, and knows that the user terminal sending the corresponding PRACH supports repeated transmission of Msg3.

[0098] Figure 4 This is a schematic diagram illustrating some embodiments of the user terminal identification method of this disclosure. Preferably, this embodiment can be executed by the user terminal identification system of this disclosure. Figure 4 In this embodiment, the base station uses frequency division to distinguish between the first PRACH transmission timing and the second PRACH transmission timing. The method includes at least one of the following steps:

[0099] Step 41: The base station configures one PRACH configuration index, namely the second PRACH configuration index prach-ConfigurationIndex, in the first system information block SIB1. The base station additionally configures one frequency domain start position or frequency domain offset value for the PRACH transmission timing (first PRACH transmission timing). The second PRACH configuration index is used to indicate the PRACH transmission configuration of the second user terminal. The frequency domain start position or frequency domain offset value of the first PRACH transmission timing is used to indicate the frequency domain offset of the first user terminal (new UE) and the second user terminal (old UE) on the PRACH transmission timing, namely the frequency domain offset of the first PRACH transmission timing (new PRACH transmission timing) and the second PRACH transmission timing (old PRACH transmission timing).

[0100] In some embodiments of this disclosure, the step of configuring the frequency domain start position or frequency domain offset value for the first PRACH transmission timing by the base station includes: the base station and the first user terminal pre-defining the frequency domain start position or frequency domain offset value. That is, the base station does not configure the offset value, and the new UE adopts a default frequency domain offset configuration pre-defined by both parties.

[0101] Figure 5 This is a schematic diagram illustrating the timing of the first PRACH transmission and the second PRACH transmission in some embodiments of this disclosure. Figure 5 As shown, this frequency offset must ensure that the timing of new and old PRACH transmissions does not overlap in the frequency domain. This ensures that the PRACH transmissions of the new UE and the old UE are frequency-divided, thus enabling the base station to distinguish between the new and old UEs.

[0102] Step 42: The user terminal obtains the configuration information for PRACH transmission and the association information between PRACH transmission timing and SSB index by decoding the SIB1 information.

[0103] Step 43: The first user terminal (new UE) determines the time-frequency resource location of the first PRACH transmission opportunity based on the configuration of the second PRACH configuration index (prach-ConfigurationIndex) and the frequency domain offset value of the explicitly configured or default first PRACH transmission opportunity, and sends a preamble on the first PRACH transmission opportunity.

[0104] Step 44: If the base station detects a preamble during a new PRACH transmission, it determines that the user terminal sending the corresponding preamble is the first user terminal, that is, it knows that the user terminal sending the corresponding PRACH supports repeated transmission of Msg3.

[0105] Figure 6 This is a schematic diagram illustrating further embodiments of the user terminal identification method of this disclosure. Preferably, this embodiment can be executed by the user terminal identification system of this disclosure. The method may include at least one of the following steps, wherein:

[0106] Step 61: The base station configures a first PRACH transmission opportunity (new PRACH transmission opportunity) and a second PRACH transmission opportunity (old PRACH transmission opportunity) for the first user terminal. The first user terminal is a user terminal that supports the repeated transmission of the third message Msg3 in the random access procedure, so that the first user terminal sends the first preamble on the second PRACH transmission opportunity and sends the second preamble on the first PRACH transmission opportunity. The second preamble is the pairing code of the first preamble. The first PRACH transmission opportunity is one selected by the first user terminal from the PRACH transmission opportunities that the second user terminal cannot use. The second user terminal is a user terminal that does not support the repeated transmission of Msg3.

[0107] In some embodiments of this disclosure, step 61 may include: the base station configuring PRACH transmission resources through a first system information block so that the first user terminal sends a first preamble at a second PRACH transmission timing associated with the corresponding synchronization signal block index, and sends a second preamble at the first PRACH transmission timing.

[0108] Step 62: If the base station simultaneously decodes the first preamble (new preamble) on the second PRACH transmission timing (old PRACH transmission timing) and decodes the second preamble on the first PRACH transmission timing, it determines that the user terminal that sends the first preamble and the second preamble is the first user terminal.

[0109] Figure 7 This is a schematic diagram illustrating further embodiments of the user terminal identification method of this disclosure. Preferably, this embodiment can be executed by the user terminal identification system of this disclosure. The method may include at least one of the following steps, wherein:

[0110] Step 71: The base station configures PRACH transmission resources through SIB1.

[0111] Step 72: The user terminal obtains the configuration information for PRACH transmission and the association information between PRACH transmission timing and SSB index by decoding the SIB1 information.

[0112] Step 73, the first user terminal (new UE) sends the first preamble (Preamble #1) on the second PRACH transmission opportunity (old PRACH transmission opportunity) associated with the corresponding SSB index, in the remaining PRACH transmission opportunities unavailable to the second user terminal (old UE) (such as... Figure 1 The PRACH transmission timings shown (#6 and #7) select one PRACH transmission timing to send the second preamble (Preamble #2) paired with Preamble #1.

[0113] In some embodiments of this disclosure, in order not to affect the PRACH transmission power of the UE, the new and old PRACH transmission times selected by the UE cannot use the same OFDM symbol.

[0114] In some embodiments of this disclosure, Preamble #2 may be the same as Preamble #1.

[0115] In some other embodiments of this disclosure, Preamble#2 and Preamble#1 have a certain predefined order relationship, such as: the sequence number of Preamble#2 is the sequence number of Preamble#1 plus an offset value.

[0116] Step 74: When the base station detects Preamble#1 and Preamble#2 simultaneously on both the old PRACH transmission timing (second PRACH transmission timing) and the new PRACH transmission timing (first PRACH transmission timing), it knows that the user sending the corresponding Preamble supports the repeated transmission of Msg3.

[0117] Step 75: The base station configures Msg3 retransmission resources for the user terminal that sent the Preamble pair. It should be noted that the old UE may have also transmitted Preamble#1 or Preamble#2 at this time, resulting in a Preamble conflict; however, the above embodiments of this disclosure still apply to this situation. When a Preamble conflict occurs, and both the new and old UEs identify their previously sent Preamble in the RAR message, the old UE still uses the original Msg3 transmission method, while the new UE uses Msg3 retransmission according to the base station configuration.

[0118] Figure 8 This is a schematic diagram illustrating some embodiments of the user terminal identification method of this disclosure. Preferably, this embodiment can be executed by the first user terminal (new UE) of this disclosure or the user terminal identification system of this disclosure. The method may include at least one of the following steps, wherein:

[0119] Step 81: The first user terminal receives the first physical random access channel (PRACH) transmission timing configured by the base station, wherein the first user terminal is a user terminal that supports the repeated transmission of the third message Msg3 of the random access procedure.

[0120] Step 82: The first user terminal sends a preamble during the first PRACH transmission, so that the base station can determine the user terminal that sent the preamble as the first user terminal when it decodes the preamble during the first PRACH transmission.

[0121] In some embodiments of this disclosure, frequency division or time division is used to distinguish the timing of new and old PRACH transmissions.

[0122] In some embodiments of this disclosure, when a time-division multiplexing approach is used, step 81 may include: a first user terminal receiving and decoding a first system information block sent by a base station, wherein the base station configures a first PRACH configuration index and a second PRACH configuration index in the first system information block, the first PRACH configuration index being used to indicate the PRACH transmission configuration of the first user terminal, the second PRACH configuration index being used to indicate the PRACH transmission configuration of the second user terminal, the second user terminal being a user terminal that does not support Msg3 repetitive transmission, the second PRACH transmission timing being the PRACH transmission timing adopted by the second user terminal, and the time domain resources configured by the first PRACH configuration index and the second PRACH configuration index not overlapping; step 82 may include: the first user terminal sending a preamble at the first PRACH transmission timing according to the configuration of the first PRACH configuration index.

[0123] In some embodiments of this disclosure, when using a frequency division multiplexing (FDM) approach, step 81 may include: a first user terminal receiving and decoding a first system information block sent by a base station, and receiving the frequency domain start position or frequency domain offset value of a first PRACH transmission timing configured by the base station, wherein the base station configures a second PRACH configuration index in the first system information block, the second PRACH configuration index being used to indicate the PRACH transmission configuration of the second user terminal, and the frequency domain start position or frequency domain offset value of the first PRACH transmission timing being used to indicate the frequency domain offset between the first user terminal and the second user terminal in the PRACH transmission timing.

[0124] In some embodiments of this disclosure, the frequency domain start position or frequency domain offset value of the first PRACH transmission timing configured by the receiving base station may include: the first user terminal and the base station pre-defining the frequency domain start position or frequency domain offset value.

[0125] In some embodiments of this disclosure, when using frequency division, step 82 may include: the first user terminal determining the time-frequency resource location of the first PRACH transmission timing based on the configuration of the second PRACH configuration index and the frequency domain start position or frequency domain offset value of the first PRACH transmission timing, and sending a preamble on the first PRACH transmission timing.

[0126] In the above embodiments of this disclosure, the first user terminal (new UE) can transmit PRACH according to the first PRACH transmission timing (new PRACH transmission timing).

[0127] Figure 9 This is a schematic diagram illustrating some embodiments of the user terminal identification method of this disclosure. Preferably, this embodiment can be executed by the first user terminal (new UE) of this disclosure or the user terminal identification system of this disclosure. The method may include at least one of the following steps, wherein:

[0128] Step 91: The first user terminal receives the first physical random access channel (PRACH) transmission timing and the second PRACH transmission timing configured by the base station, wherein the first user terminal is a user terminal that supports the repeated transmission of the third message Msg3 of the random access procedure.

[0129] Step 92: The first user terminal sends a first preamble during the second PRACH transmission timing and sends a second preamble during the first PRACH transmission timing. The second preamble is the pairing code of the first preamble. The first PRACH transmission timing is one that the first user terminal selects from the PRACH transmission timings that the second user terminal cannot use. The second user terminal is a user terminal that does not support Msg3 repetitive transmission. This is so that if the base station decodes the first preamble during the second PRACH transmission timing and decodes the second preamble during the first PRACH transmission timing, it determines that the user terminal that sends the first preamble and the second preamble is the first user terminal.

[0130] The above embodiments of this disclosure propose a method for instructing user terminals to support Msg3 repeated transmission. Through the method of the above embodiments of this disclosure, the base station can identify user terminals that support Msg3 repeated transmission, thereby configuring appropriate time and frequency resources for the corresponding user terminals, improving Msg3 coverage performance while ensuring the utilization efficiency of uplink resources.

[0131] Figure 10 This is a schematic diagram of some embodiments of the base station disclosed herein. For example... Figure 10 As shown, the base station disclosed herein may include a configuration module 101 and an identification module 102, wherein:

[0132] Configuration module 101 is used to configure the first physical random access channel (PRACH) transmission timing for the first user terminal, wherein the first user terminal is a user terminal that supports the repeated transmission of the third message Msg3 of the random access procedure, so that the first user terminal can send a preamble at the first PRACH transmission timing.

[0133] In some embodiments of this disclosure, the configuration module 101 can also be used by the base station to configure a second PRACH transmission timing for the second user terminal, wherein the second user terminal is a user terminal that does not support repeated transmission of Msg3, and the second PRACH transmission timing is the PRACH transmission timing adopted by the second user terminal.

[0134] The identification module 102 is used to determine that the user terminal that sends the corresponding preamble is the first user terminal when the preamble is decoded during the first PRACH transmission.

[0135] In some embodiments of this disclosure, the identification module 102 can also be used to determine that the user terminal sending the corresponding preamble is the second user terminal when the preamble is decoded during the second PRACH transmission.

[0136] In some embodiments of this disclosure, the base station may use frequency division or time division to distinguish between the first transmission PRACH timing and the second transmission PRACH timing.

[0137] In some embodiments of this disclosure, when the base station distinguishes between the first and second PRACH transmission timings using a time-division multiplexing method, the configuration module 101 can be used to configure a first PRACH configuration index and a second PRACH configuration index in the first system information block. The first PRACH configuration index indicates the PRACH transmission configuration of the first user terminal, and the second PRACH configuration index indicates the PRACH transmission configuration of the second user terminal. The time-domain resources configured by the first and second PRACH configuration indices do not overlap, so that the first user terminal can send a preamble at the first PRACH transmission timing according to the configuration of the first PRACH configuration index. The identification module 102 can be used to determine that the user terminal sending the corresponding preamble is the first user terminal when a preamble is detected at the first PRACH transmission timing.

[0138] In some embodiments of this disclosure, when the base station uses frequency division to distinguish between the first and second transmission RACH timings, the configuration module 101 can be used to configure a second PRACH configuration index in the first system information block, and the base station configures the frequency domain start position or frequency domain offset value of the first PRACH transmission timing. The second PRACH configuration index is used to indicate the PRACH transmission configuration of the second user terminal, and the frequency domain start position or frequency domain offset value of the first PRACH transmission timing is used to indicate the frequency domain offset between the first user terminal and the second user terminal on the PRACH transmission timing. This allows the first user terminal to determine the time-frequency resource location of the first PRACH transmission timing based on the configuration of the second PRACH configuration index and the frequency domain start position or frequency domain offset value of the first PRACH transmission timing, and to send a preamble on the first PRACH transmission timing. The identification module 102 can be used to determine that the user terminal sending the corresponding preamble is the first user terminal when a preamble is detected on the first PRACH transmission timing.

[0139] In some embodiments of this disclosure, the base station can be used to predefine a frequency domain start position or frequency domain offset value with the first user terminal.

[0140] In other embodiments of this disclosure, the configuration module 101 can be used to configure a first physical random access channel (PRACH) transmission timing and a second PRACH transmission timing for a first user terminal. The first user terminal is a user terminal that supports the repeated transmission of the third message Msg3 during the random access procedure, so that the first user terminal sends a first preamble on the second PRACH transmission timing and a second preamble on the first PRACH transmission timing. The second preamble is the pairing code of the first preamble. The first PRACH transmission timing is selected by the first user terminal from PRACH transmission timings that the second user terminal cannot use. The second user terminal is a user terminal that does not support the repeated transmission of Msg3. The identification module 102 can be used to determine that the user terminal sending the first preamble and the second preamble is the first user terminal when both the first preamble and the second preamble are decoded simultaneously on the second PRACH transmission timing and on the first PRACH transmission timing.

[0141] In some embodiments of this disclosure, the base station can be used to perform any of the embodiments described above (e.g., Figure 2 or Figure 6 The operation of the user terminal identification method described in the embodiment)

[0142] Based on the base station provided in the above embodiments of this disclosure, user terminals that support Msg3 repeated transmission can be identified, thereby configuring appropriate time and frequency resources for the corresponding user terminals, improving Msg3 coverage performance while ensuring the utilization efficiency of uplink resources.

[0143] Figure 11 These are schematic diagrams illustrating some embodiments of the first user terminal disclosed herein. For example... Figure 11 As shown, the first user terminal of this disclosure may include a configuration receiving module 111 and a transmission module 112, wherein:

[0144] The configuration receiving module 111 is used to receive the transmission timing of the first physical random access channel (PRACH) configured by the base station, wherein the first user terminal is a user terminal that supports the repeated transmission of the third message Msg3 of the random access procedure.

[0145] Transmission module 112 is used to send a preamble during the first PRACH transmission, so that when the base station decodes the preamble during the first PRACH transmission, it can determine that the user terminal that sent the corresponding preamble is the first user terminal.

[0146] In some embodiments of this disclosure, when the base station distinguishes between the first and second transmission RACH timings using a time-division multiplexing method, the configuration receiving module 111 can be used to receive and decode the first system information block sent by the base station. The base station configures a first PRACH configuration index and a second PRACH configuration index in the first system information block. The first PRACH configuration index indicates the PRACH transmission configuration of the first user terminal, and the second PRACH configuration index indicates the PRACH transmission configuration of the second user terminal. The second user terminal is a user terminal that does not support repeated Msg3 transmissions. The second PRACH transmission timing is the PRACH transmission timing adopted by the second user terminal. The time-domain resources configured by the first and second PRACH configuration indices do not overlap.

[0147] In some embodiments of this disclosure, when the base station uses a time-division multiplexing method to distinguish between the first transmission RACH timing and the second transmission RACH timing, the transmission module 112 can be used to send a preamble during the first PRACH transmission timing according to the configuration of the first PRACH configuration index.

[0148] In some embodiments of this disclosure, when the base station uses frequency division to distinguish between the first PRACH transmission timing and the second PRACH transmission timing, the configuration receiving module 111 can be used to receive and decode the first system information block sent by the base station, and receive the frequency domain start position or frequency domain offset value of the first PRACH transmission timing configured by the base station. The base station configures a second PRACH configuration index in the first system information block. The second PRACH configuration index is used to indicate the PRACH transmission configuration of the second user terminal. The frequency domain start position or frequency domain offset value of the first PRACH transmission timing is used to indicate the frequency domain offset of the first user terminal and the second user terminal in the PRACH transmission timing.

[0149] In some embodiments of this disclosure, the configuration receiving module 111 can be used to predefine the frequency domain start position or frequency domain offset value with the base station.

[0150] In some embodiments of this disclosure, when the base station uses frequency division to distinguish between the first transmission RACH timing and the second transmission RACH timing, the transmission module 112 can be used to determine the time-frequency resource location of the first PRACH transmission timing based on the configuration of the second PRACH configuration index and the frequency domain start position or frequency domain offset value of the first PRACH transmission timing, and send a preamble on the first PRACH transmission timing.

[0151] In some embodiments of this disclosure, the configuration receiving module 111 can be used to receive the first physical random access channel (PRACH) transmission timing and the second PRACH transmission timing configured by the base station, wherein the first user terminal is a user terminal that supports the repeated transmission of the third message Msg3 in the random access procedure; the transmission module 112 can be used to send the first preamble during the second PRACH transmission timing and send the second preamble during the first PRACH transmission timing, wherein the second preamble is the pairing code of the first preamble, the first PRACH transmission timing is one selected by the first user terminal from the PRACH transmission timings that the second user terminal cannot use, and the second user terminal is a user terminal that does not support the repeated transmission of Msg3, so that when the base station decodes the first preamble during the second PRACH transmission timing and decodes the second preamble during the first PRACH transmission timing, it determines that the user terminal sending the first preamble and the second preamble is the first user terminal.

[0152] In some embodiments of this disclosure, the first user terminal is used to perform an implementation as described in any of the embodiments above (e.g., Figure 8 or Figure 9 The operation of the user terminal identification method described in the embodiment)

[0153] Based on the first user terminal provided in the above embodiments of this disclosure, it can be used to indicate whether the base station user terminal supports Msg3 repeated transmission. This enables the base station to identify user terminals that support Msg3 repeated transmission, thereby configuring appropriate time and frequency resources for the corresponding user terminals. This improves Msg3 coverage performance while ensuring the utilization efficiency of uplink resources.

[0154] Figure 12 These are schematic diagrams illustrating some embodiments of the user terminal identification system disclosed herein. For example... Figure 12 As shown, the user terminal identification system disclosed herein may include a base station 10 and a first user terminal (new UE) 11, wherein:

[0155] Base station 10 can be any of the embodiments described above (e.g.) Figure 11 The base station described in the example).

[0156] The first user terminal 11 can be as described in any of the above embodiments (e.g., ...). Figure 12 The first user terminal described in the embodiment).

[0157] In some embodiments of this disclosure, base station 10 can be used to configure a first physical random access channel (PRACH) transmission timing for a first user terminal, wherein the first user terminal (new user terminal) is a user terminal that supports the repeated transmission of the third message Msg3 of the random access procedure, so that the first user terminal can send a preamble at the first PRACH transmission timing; if the preamble is decoded at the first PRACH transmission timing, the user terminal that sends the corresponding preamble is determined to be the first user terminal.

[0158] In some embodiments of this disclosure, the user terminal identification system may further include a second user terminal (old user terminal) 12, wherein:

[0159] In some embodiments of this disclosure, base station 10 can also be used to configure a second PRACH transmission timing for a second user terminal (old user terminal), wherein the second user terminal is a user terminal that does not support repeated transmission of Msg3, and the second PRACH transmission timing is the PRACH transmission timing adopted by the second user terminal; if the preamble is decoded at the second PRACH transmission timing, the user terminal that sends the corresponding preamble is determined to be the second user terminal.

[0160] Thus, the base station has completed the identification of the first user terminal and the second user terminal, and can configure the corresponding Msg3 retransmission resources for the first user terminal.

[0161] Based on the user terminal identification system provided in the above embodiments of this disclosure, the base station can identify user terminals that support Msg3 repeated transmission, thereby configuring appropriate time and frequency resources for the corresponding user terminals, improving Msg3 coverage performance while ensuring the utilization efficiency of uplink resources.

[0162] Figure 13 This is a schematic diagram illustrating the structure of some embodiments of the computer device disclosed herein. For example... Figure 13 As shown, the computer device includes a memory 131 and a processor 132.

[0163] Memory 131 is used to store instructions, and processor 132 is coupled to memory 131. Processor 132 is configured to execute instructions stored in memory to implement any of the above embodiments. Figures 2-9 The user terminal identification method described in any embodiment.

[0164] In some embodiments of this disclosure, the processor 132 executes any of the above embodiments (e.g. Figure 2 or Figure 6 In the case of the user terminal identification method described in the embodiment), the computer device can be implemented as any of the above embodiments of this disclosure (e.g., Figure 10 The base station described in the example).

[0165] In some embodiments of this disclosure, the processor 132 executes any of the above embodiments (e.g. Figure 8 or Figure 9 In the case of the user terminal identification method described in the embodiment), the computer device can be implemented as any of the above embodiments of this disclosure (e.g., Figure 11 The first user terminal described in the embodiment).

[0166] like Figure 13 As shown, the computer device also includes a communication interface 133 for exchanging information with other devices. Additionally, the computer device includes a bus 134, through which the processor 132, communication interface 133, and memory 131 communicate with each other.

[0167] The memory 131 may include high-speed RAM, and may also include non-volatile memory, such as at least one disk storage device. The memory 131 may also be a memory array. The memory 131 may also be divided into blocks, and the blocks may be combined into virtual volumes according to certain rules.

[0168] Furthermore, processor 132 may be a central processing unit (CPU), an application-specific integrated circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present disclosure.

[0169] According to another aspect of this disclosure, a non-transitory computer-readable storage medium is provided, wherein the non-transitory computer-readable storage medium stores computer instructions that, when executed by a processor, implement any of the above embodiments. Figures 2-9 The user terminal identification method described in any embodiment.

[0170] Based on the non-transient computer-readable storage medium provided in the above embodiments of this disclosure, the base station can identify user terminals that support repeated transmission of Msg3, thereby configuring appropriate time-frequency resources for the corresponding user terminals, improving Msg3 coverage performance while ensuring the utilization efficiency of uplink resources.

[0171] Those skilled in the art will understand that embodiments of this disclosure can be provided as methods, apparatus, or computer program products. Therefore, this disclosure can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this disclosure can take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0172] This disclosure is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this disclosure. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create a machine for implementing the flowchart illustrations. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0173] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0174] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0175] The base station and the first user terminal described above can be implemented as a general-purpose processor, programmable logic controller (PLC), digital signal processor (DSP), application-specific integrated circuit (ASIC), field-programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component or any suitable combination thereof for performing the functions described in this application.

[0176] This concludes the detailed description of the present disclosure. To avoid obscuring the concept of the disclosure, some details known in the art have not been described. Those skilled in the art will fully understand how to implement the technical solutions disclosed herein based on the above description.

[0177] Those skilled in the art will understand that all or part of the steps of the above embodiments can be implemented by hardware, or by a program instructing the relevant hardware to implement them. The program can be stored in a non-transitory computer-readable storage medium, such as a read-only memory, a disk, or an optical disk.

[0178] The description in this disclosure is provided for illustrative and descriptive purposes only and is not intended to be exhaustive or to limit the disclosure to its forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of this disclosure and to enable those skilled in the art to understand this disclosure and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A user terminal identification method, characterized by, include: The base station configures the first physical random access channel (PRACH) transmission timing for the first user terminal, wherein the first user terminal is a user terminal that supports the repeated transmission of the third message Msg3 of the random access procedure, so that the first user terminal can send a preamble at the first PRACH transmission timing. If the base station decodes the preamble during the first PRACH transmission, it determines that the user terminal that sent the corresponding preamble is the first user terminal. The base station uses frequency division to distinguish between the first PRACH transmission timing and the second PRACH transmission timing; The base station uses a frequency division method to distinguish between the first transmission RACH timing and the second transmission RACH timing, including: The base station configures a second PRACH configuration index in the first system information block, and configures the frequency domain start position or frequency domain offset value of the first PRACH transmission timing. The second PRACH configuration index is used to indicate the PRACH transmission configuration of the second user terminal, and the frequency domain start position or frequency domain offset value of the first PRACH transmission timing is used to indicate the frequency domain offset of the first user terminal and the second user terminal on the PRACH transmission timing. This allows the first user terminal to determine the time-frequency resource location of the first PRACH transmission timing based on the configuration of the second PRACH configuration index and the frequency domain start position or frequency domain offset value of the first PRACH transmission timing, and to send a preamble on the first PRACH transmission timing. If the base station detects a preamble during the first PRACH transmission, it determines that the user terminal that sent the corresponding preamble is the first user terminal.

2. The user terminal identification method of claim 1, wherein Also includes: The base station configures a second PRACH transmission timing for the second user terminal, wherein the second user terminal is a user terminal that does not support repeated transmission of Msg3, and the second PRACH transmission timing is the PRACH transmission timing adopted by the second user terminal. If the base station decodes the preamble during the second PRACH transmission, it determines that the user terminal that sent the corresponding preamble is the second user terminal.

3. The user terminal identification method of claim 2, wherein Also includes: The base station uses a time-division multiplexing method to distinguish between the first PRACH transmission timing and the second PRACH transmission timing.

4. The user terminal identification method of claim 3, wherein The base station uses a time-division multiplexing method to distinguish between the first RACH transmission timing and the second RACH transmission timing, including: The base station configures a first PRACH configuration index and a second PRACH configuration index in the first system information block. The first PRACH configuration index is used to indicate the PRACH transmission configuration of the first user terminal, and the second PRACH configuration index is used to indicate the PRACH transmission configuration of the second user terminal. The time domain resources configured by the first PRACH configuration index and the second PRACH configuration index do not overlap, so that the first user terminal can send a preamble at the first PRACH transmission time according to the configuration of the first PRACH configuration index. If the base station detects a preamble during the first PRACH transmission, it determines that the user terminal that sent the corresponding preamble is the first user terminal.

5. The user terminal identification method according to any one of claims 1 to 4, characterized by, The frequency domain start position or frequency domain offset value for configuring the first PRACH transmission timing of the base station includes: The base station and the first user terminal predefine the frequency domain start position or frequency domain offset value.

6. A user terminal identification method characterized by comprising: include: The base station configures a first physical random access channel (PRACH) transmission opportunity and a second PRACH transmission opportunity for the first user terminal. The first user terminal is a user terminal that supports the repeated transmission of the third message Msg3 in the random access procedure, so that the first user terminal can send a first preamble on the second PRACH transmission opportunity and send a second preamble on the first PRACH transmission opportunity. The second preamble is the pairing code of the first preamble. The first PRACH transmission opportunity is selected by the first user terminal from the PRACH transmission opportunities that the second user terminal cannot use. The second user terminal is a user terminal that does not support the repeated transmission of Msg3. If the base station simultaneously decodes the first preamble during the second PRACH transmission and decodes the second preamble during the first PRACH transmission, it determines that the user terminal that sends the first preamble and the second preamble is the first user terminal.

7. A user terminal identification method characterized by comprising: include: The first user terminal receives the first physical random access channel (PRACH) transmission timing configured by the base station. The first user terminal is a user terminal that supports the repeated transmission of the third message Msg3 in the random access procedure. The first user terminal receiving the first physical random access channel (PRACH) transmission timing configured by the base station includes: the first user terminal receiving and decoding the first system information block sent by the base station, and receiving the frequency domain start position or frequency domain offset value of the first PRACH transmission timing configured by the base station. The base station configures a second PRACH configuration index in the first system information block. The second PRACH configuration index is used to indicate the PRACH transmission configuration of the second user terminal. The frequency domain start position or frequency domain offset value of the first PRACH transmission timing is used to indicate the frequency domain offset between the first user terminal and the second user terminal in the PRACH transmission timing. The first user terminal sends a preamble during the first PRACH transmission, so that the base station, upon decoding the preamble during the first PRACH transmission, determines that the user terminal sending the corresponding preamble is the first user terminal. The first user terminal sending the preamble during the first PRACH transmission includes: the first user terminal determining the time-frequency resource location of the first PRACH transmission based on the configuration of the second PRACH configuration index and the frequency domain start position or frequency domain offset value of the first PRACH transmission, and sending the preamble during the first PRACH transmission.

8. The user terminal identification method according to claim 7, characterized in that, The timing for the first user terminal to receive the first physical random access channel (PRACH) transmission configured by the base station includes: The first user terminal receives and decodes the first system information block sent by the base station. The base station configures a first PRACH configuration index and a second PRACH configuration index in the first system information block. The first PRACH configuration index is used to indicate the PRACH transmission configuration of the first user terminal, and the second PRACH configuration index is used to indicate the PRACH transmission configuration of the second user terminal. The second user terminal is a user terminal that does not support Msg3 repeated transmission. The second PRACH transmission timing is the PRACH transmission timing adopted by the second user terminal. The time domain resources configured by the first PRACH configuration index and the second PRACH configuration index do not overlap. The first user terminal sends a preamble during the first PRACH transmission, including: The first user terminal sends a preamble during the first PRACH transmission according to the configuration of the first PRACH configuration index.

9. The user terminal identification method according to claim 7 or 8, characterized by, The frequency domain start position or frequency domain offset value of the first PRACH transmission timing configured by the receiving base station includes: The first user terminal and the base station predefine the frequency domain start position or frequency domain offset value.

10. A user terminal identification method characterized by comprising: include: The first user terminal receives the first physical random access channel (PRACH) transmission timing and the second PRACH transmission timing configured by the base station, wherein the first user terminal is a user terminal that supports the repeated transmission of the third message Msg3 in the random access procedure. The first user terminal sends a first preamble during the second PRACH transmission timing and a second preamble during the first PRACH transmission timing. The second preamble is a pairing code of the first preamble. The first PRACH transmission timing is selected by the first user terminal from among the PRACH transmission timings that the second user terminal cannot use. The second user terminal is a user terminal that does not support Msg3 repetitive transmission. In order for the base station to determine that the user terminal sending the first preamble and the second preamble is the first user terminal when the base station decodes the first preamble during the second PRACH transmission timing and decodes the second preamble during the first PRACH transmission timing.

11. A base station, characterized by include: The configuration module is used to configure the first physical random access channel (PRACH) transmission timing for the first user terminal, wherein the first user terminal is a user terminal that supports the repeated transmission of the third message Msg3 of the random access procedure, so that the first user terminal can send a preamble at the first PRACH transmission timing. The identification module is used to determine that the user terminal sending the corresponding preamble is the first user terminal when the preamble is decoded during the first PRACH transmission. The base station is used to implement the user terminal identification method as described in any one of claims 1-6.

12. A first user terminal, characterized by include: The configuration receiving module is used to receive the transmission timing of the first physical random access channel (PRACH) configured by the base station, wherein the first user terminal is a user terminal that supports the repeated transmission of the third message Msg3 of the random access procedure. The transmission module is used to send a preamble during the first PRACH transmission, so that when the base station decodes the preamble during the first PRACH transmission, it can determine that the user terminal that sent the corresponding preamble is the first user terminal. The first user terminal is used to implement the user terminal identification method as described in any one of claims 7-10.

13. A computer apparatus, comprising: include: Memory, used to store instructions; A processor for executing the instructions, causing the computer device to implement the user terminal identification method as described in any one of claims 1-10.

14. A user terminal identification system, characterized by It includes the base station as described in claim 11 and the first user terminal as described in claim 12.

15. A non-transitory computer-readable storage medium, comprising: The non-transitory computer-readable storage medium stores computer instructions that, when executed by a processor, implement the user terminal identification method as described in any one of claims 1-10.

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