Data transmission method, base station, terminal, device, and storage medium

Abstract

The present disclosure provides a data transmission method in a random access process, a base station, a terminal, equipment and a storage medium, and relates to the technical field of mobile communication. The method comprises the following steps: receiving a random access preamble sent by a user terminal; and sending a random access response to the user terminal, wherein the random access response comprises uplink grant information; wherein the uplink grant information comprises configuration information of the number of repeated transmissions of Msg3, so that the user terminal determines the number of repeated transmissions of Msg3 according to the configuration information of the number of repeated transmissions of Msg3. Through the above method, the number of repeated transmissions of Msg3 can be configured without increasing additional signaling overhead, and the resource utilization is improved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of mobile communication technology, and in particular, to a data transmission method in a random access process, a base station, a terminal, an equipment and a storage medium. BACKGROUND

[0002] The 3GPP (3rd Generation Partnership Project) NR (New Radio) Release-16 protocol does not support the repeated transmission of Msg3 PUSCH (Physical Uplink Shared Channel), and the feature is considered to be introduced in the coverage enhancement project of Release-17 to enhance the uplink coverage performance. In order to enable the repeated transmission of Msg3, the base station needs to indicate the number of Msg3 repeated transmissions of the user terminal. Before the initial transmission of Msg3 PUSCH, the base station indicates the corresponding transmission resource through the uplink grant (UL grant) information of the random access response (RAR). The related technology proposes to support the Msg3 repeated transmission technology, that is, to configure a common Msg3 repeated transmission parameter (such as Msg3-AggregationFactor) on the initial uplink BWP (Bandwidth Part) or to indicate a Msg3 repeated transmission parameter in the DCI (Downlink Control Information) scheduling the PDSCH (Physical Downlink Shared Channel) corresponding to the RAR, and the resource utilization is low.

[0003] The above information disclosed in the background section is only for the purpose of enhancing the understanding of the background of the present disclosure, and therefore it can include information that does not constitute the prior art known to those of ordinary skill in the art. SUMMARY

[0004] The purpose of the present disclosure is to provide a data transmission method in a random access process, a base station, a terminal, an equipment and a storage medium, which at least partially overcomes the problem of low resource utilization in the related art.

[0005] Other characteristics and advantages of the present disclosure will become apparent from the following detailed description, or will be learned by practice of the present disclosure.

[0006] According to an aspect of the present disclosure, a method for data transmission in a random access procedure is provided, comprising: receiving a random access preamble sent by a user terminal; sending a random access response to the user terminal, wherein the random access response comprises uplink grant information, and the uplink grant information comprises configuration information of a repetition number of Msg3, so that the user terminal determines the repetition number of Msg3 according to the configuration information of the repetition number of Msg3.

[0007] According to another aspect of the present disclosure, a method for data transmission in a random access procedure is provided, comprising: a user terminal sending a random access preamble; the user terminal receiving a random access response from a network side, wherein the random access response comprises uplink grant information, and the uplink grant information comprises configuration information of a repetition number of Msg3; and the user terminal determining the repetition number of Msg3 according to the configuration information of the repetition number of Msg3 in the uplink grant information in the random access response.

[0008] According to still another aspect of the present disclosure, a base station is provided, comprising: a preamble receiving module configured to receive a random access preamble sent by a user terminal; and a response sending module configured to send a random access response to the user terminal, wherein the random access response comprises uplink grant information, and the uplink grant information comprises configuration information of a repetition number of Msg3, so that the user terminal determines the repetition number of Msg3 according to the configuration information of the repetition number of Msg3.

[0009] According to still another aspect of the present disclosure, a terminal is provided, comprising: a preamble sending module configured to send a random access preamble; a response receiving module configured to receive a random access response from a network side, wherein the random access response comprises uplink grant information, and the uplink grant information comprises configuration information of a repetition number of Msg3; and a repetition number determining module configured to determine the repetition number of Msg3 according to the configuration information of the repetition number of Msg3 in the uplink grant information in the random access response.

[0010] According to still another aspect of the present disclosure, an apparatus is provided, comprising: a memory, a processor, and executable instructions stored in the memory and executable in the processor, wherein the processor executes the executable instructions to implement any of the above methods.

[0011] According to still another aspect of the present disclosure, a computer readable storage medium is provided, wherein the computer readable storage medium stores computer executable instructions, and the executable instructions are executed in a processor to implement any of the above methods.

[0012] The method, terminal, base station and device provided by the embodiments of the present disclosure determine the number of repeated transmissions of Msg3 by a user terminal through configuration information of the number of repeated transmissions of Msg3 included in UL grant information, implement the configuration of the number of repeated transmissions of Msg3 without increasing additional signaling overhead, and improve resource utilization.

[0013] It should be understood that the general description above and the following detailed description are only exemplary and not limiting of the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0014] The above and other objects, features and advantages of the present disclosure will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which:

[0015] Figure 1 A signaling interaction diagram of contention-based random access in NR random access is shown.

[0016] Figure 2 A RAR format diagram is shown.

[0017] Figure 3 A data transmission method in a random access procedure according to an embodiment of the present disclosure is shown.

[0018] Figure 4 A data transmission method in a random access procedure according to another embodiment of the present disclosure is shown.

[0019] Figure 5 A data transmission method in a random access procedure according to yet another embodiment of the present disclosure is shown.

[0020] Figure 6 A data transmission method in a random access procedure according to still another embodiment of the present disclosure is shown.

[0021] Figure 7 A data transmission method in a random access procedure according to still another embodiment of the present disclosure is shown.

[0022] Figure 8 A data transmission method in a random access procedure according to still another embodiment of the present disclosure is shown.

[0023] Figure 9 A data transmission method in a random access procedure according to still another embodiment of the present disclosure is shown.

[0024] Figure 10 A data transmission method in a random access procedure according to still another embodiment of the present disclosure is shown.

[0025] Figure 11 A data transmission method in a random access procedure according to still another embodiment of the present disclosure is shown.

[0026] Figure 12 A structural diagram of a base station according to the present disclosure is shown.

[0027] Figure 13 A structural diagram of a terminal according to the present disclosure is shown.

[0028] Figure 14 A structural diagram of a device according to the present disclosure is shown. DETAILED DESCRIPTION

[0029] Example embodiments now will be described more fully hereinafter with reference to the accompanying drawings. Example embodiments, however, can be implemented in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of example embodiments to those skilled in the art. Like reference numerals refer to like elements throughout the several views. Like components will not be repeated in description.

[0030] Moreover, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the techniques described herein can be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, materials, or operations are not shown or described in detail in order to avoid obscuring aspects of the disclosure.

[0031] In addition, the terms "first", "second", and the like, do not denote any quantity or order but are used as labels for distinguishing between different entities. Thus, a feature specified as "first" can implicitly or explicitly include one or more of the feature, and a feature specified as "second" can implicitly or explicitly include one or more of the feature. In the description of the disclosure, the meaning of "a plurality" is at least two, for example, two, three, and the like, unless otherwise explicitly specified and limited. The symbol " / " generally represents an "or" relationship between the objects before and after it.

[0032] In the present disclosure, unless otherwise explicitly specified and limited, the term "connected" and the like should be interpreted broadly, for example, can be electrically connected or can communicate with each other; can be directly connected, or can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0033] Currently, the random access procedure of NR can be divided into contention-based random access and non-contention-based random access. The contention-based random access procedure is as follows: Figure 1The four-step access procedure is shown. Figure 2 An RAR format diagram in an embodiment of the present disclosure is shown, wherein the RAR includes uplink grant information.

[0034] When the initial transmission of Msg3 PUSCH is performed, the base station indicates the corresponding transmission resource through the UL grant information of the random access response. In the related protocol, the RAR UL grant contains a total of 27 bits, as shown in the following table:

[0035]

[0036] Table 1

[0037] Those skilled in the art should understand that the RAR UL grant does not have additional padding bits and reserved bits for the indication of the number of Msg3 repeated transmissions, and if the size of the RAR UL grant is changed, it will cause serious compatibility problems. The inventors of the present disclosure comprehensively consider various aspects of the existing protocol and provide a new technical solution for indicating the number of Msg3 repeated transmissions through the RAR UL grant information, without changing the number of bits of the RAR UL grant.

[0038] One implementation is that the base station schedules the user to perform the repeated transmission of Msg3; the base station transmits corresponding Msg3 resource configuration information in the RAR UL grant, which includes the configuration information of the number of Msg3 repeated transmissions; and the user terminal performs the corresponding Msg3 repeated transmission according to the configuration of the base station.

[0039] Figure 3 A data transmission method in a random access procedure according to an embodiment of the present disclosure is shown. It is applied to the base station or the network side.

[0040] As Figure 3 shown, in step 302, the base station receives the random access preamble sent by the UE (User Equipment).

[0041] In step 304, the base station sends the RAR to the UE, and the RAR includes the UL grant information; wherein the UL grant information includes the configuration information of the number of Msg3 repeated transmissions, so that the UE determines the number of Msg3 repeated transmissions according to the configuration information of the number of Msg3 repeated transmissions.

[0042] In the above embodiment, the configuration information of the number of Msg3 repeated transmissions is carried in the UL grant information in the RAR, and the number of bits of the UL grant information is not changed, which maximizes the compatibility with the existing protocol, and improves the resource utilization efficiency.

[0043] Figure 4 A data transmission method in a random access procedure according to another embodiment of the present disclosure is shown, which is applied to a user terminal.

[0044] As shown in Figure 4 Step 402, the UE sends a random access preamble to the base station.

[0045] Step 404, the UE receives a RAR from the network side, which includes UL grant information, wherein the UL grant information includes configuration information of the number of Msg3 repetitions;

[0046] Step 406, the UE determines the number of Msg3 repetitions according to the configuration information of the number of Msg3 repetitions in the UL grant information in the RAR.

[0047] In the above embodiment, the configuration information of the number of Msg3 repetitions is carried in the UL grant information in the RAR, and the bit number of the UL grant information is not changed, which improves the resource utilization efficiency while maximizing the compatibility with the existing protocol.

[0048] In some embodiments, the configuration information of the number of Msg3 repetitions is indicated by the PUSCH time domain resource allocation field in the RAR UL grant information.

[0049] The PUSCH time domain resource allocation field in the RAR UL grant information contains 4 bits, and the bit value of the field represents a specific index value, which corresponds to a certain row of information in a set of uplink time domain resource allocation information indication table configured by SIB1 (System Information Block 1) or a certain row of information in the uplink time domain resource allocation information indication table predefined according to the protocol. In one embodiment, the configuration information of the number of Msg3 repetitions is added to the time domain resource allocation field, so as to indicate the number of Msg3 repetitions by the PUSCH time domain resource allocation information in the RAR UL grant information.

[0050] In one embodiment, there are two time domain resource allocation information indication tables, the first time domain resource allocation information indication table is the original time domain resource allocation information indication table, which does not contain the number of Msg3 repetitions, and is used for users who do not support Msg3 repetition or for users who are not scheduled by the base station to perform Msg3 repetition; the second time domain resource allocation information indication table is a newly added time domain resource allocation information indication table, which contains the number of Msg3 repetitions, and is used for users who are scheduled by the base station to perform Msg3 repetition. The following table is an example of a second time domain resource allocation information indication table:

[0051]

[0052] The definition of j in the above table is as follows:

[0053] μ PUSCH ]]> j 0 1 1 1 2 2 3 3

[0054] Table 3

[0055] wherein μ PUSCH indicates the subcarrier spacing of Msg3, and their specific relationship is:

[0056] The subcarrier spacing of Msg3 = 15 kHz * 2^(μ PUSCH ) (1)

[0057] When μ PUSCH = 0, the subcarrier spacing of Msg3 is 15 kHz, and the corresponding j = 1; when μ PUSCH = 3, the subcarrier spacing of Msg3 is 120 kHz, and the corresponding j = 3.

[0058] The base station can inform the user whether to schedule the user for Msg3 repeated transmission in various ways, so that the user determines to use the second (new) or first (original) time domain resource allocation information indication table. For example, the base station can inform the user to use which (first / second) time domain resource allocation information indication table in an implicit or explicit manner.

[0059] In one embodiment, the base station informs the user terminal whether to schedule the user for Msg3 repeated transmission in an implicit manner: when the user requests Msg3 repeated transmission, the base station and the user terminal both use the new time domain resource allocation information indication table; when the user does not request Msg3 repeated transmission, the base station and the user terminal both use the original time domain resource allocation information indication table. Those skilled in the art should understand that the user does not request Msg3 repeated transmission can include that the user does not have the capability of Msg3 repeated transmission, or the user has the capability of Msg3 repeated transmission but does not actively initiate the Msg3 repeated transmission request. An embodiment in which the base station informs the user terminal whether to schedule the user for Msg3 repeated transmission in an implicit manner is provided below.

[0060] Figure 5 A data transmission method in a random access procedure according to yet another embodiment of the present disclosure is shown.

[0061] As Figure 5As shown, S502, the base station acquires a first time domain resource allocation information indication table and a second time domain resource allocation information indication table, wherein the first time domain resource allocation information indication table does not include the number of repeated transmissions of Msg3, and the second time domain resource allocation information indication table includes the number of repeated transmissions of Msg3. The first time domain resource allocation information indication table and the second time domain resource allocation information indication table can be pre-set; or the first time domain resource allocation information indication table and the second time domain resource allocation information indication table are semi-statically configured by RRC (Radio Resource Control).

[0062] S504, the base station receives a random access preamble from the user terminal.

[0063] S506, determine whether the user requests Msg3 repeated transmission, if yes, continue S508, if no, continue S510. For example, the base station can determine whether the user requests Msg3 repeated transmission according to the different time-frequency resource positions of PRACH sent by the user or according to the different preambles.

[0064] S508, the base station generates a random access response including uplink grant information, wherein the time domain resource allocation information in the UL grant information in the random access response is generated according to the second time domain resource allocation information indication table, and the configuration information including the number of repeated transmissions of Msg3.

[0065] S510, the base station generates a random access response including uplink grant information, wherein the time domain resource allocation information is generated according to the first time domain resource allocation information indication table, and the configuration information not including the number of repeated transmissions of Msg3.

[0066] S512, the base station sends a random access response including uplink grant information to the user terminal.

[0067] S514, after the user terminal receives the random access response, it carries out different subsequent processing according to whether it requests Msg3 repeated transmission, if yes, continue S516, if no, continue S520.

[0068] S516, the user terminal determines the time domain resource allocation information according to the second time domain resource allocation information indication table, and determines the number of repeated transmissions of Msg3.

[0069] S518, the user terminal carries out Msg3 repeated transmission according to the determined number of repeated transmissions of Msg3, and carries out subsequent processing.

[0070] S520, the user terminal determines the time domain resource allocation information according to the first time domain resource allocation information indication table, wherein the configuration information not including the number of repeated transmissions of Msg3, and carries out subsequent processing.

[0071] In the above embodiments, the base station determines whether to use the first time domain resource allocation information indication table or the second time domain resource allocation information indication table to generate the content of the time domain resource allocation field in the UL grant information in the random access response in an implicit manner, and the user terminal also determines whether to use the first time domain resource allocation information indication table or the second time domain resource allocation information indication table to parse the content of the time domain resource allocation field in the UL grant information in an implicit manner, thereby saving signaling overhead and improving resource utilization.

[0072] In one embodiment, the base station determines whether to use the first time domain resource allocation information indication table or the second time domain resource allocation information indication table to generate the content of the time domain resource allocation field in the UL grant information in the random access response in an explicit manner: the base station indicates whether to use the new (second) time domain resource allocation information indication table by 1 bit, and the 1 bit information can be a reserved bit in the RAR. A specific example is as follows Figure 6

[0073] Figure 6 A data transmission method in a random access process according to yet another embodiment of the disclosure is shown.

[0074] As Figure 6 shown, S602, the base station acquires a first time domain resource allocation information indication table and a second time domain resource allocation information indication table, wherein the first time domain resource allocation information indication table does not include the number of repeated transmissions of Msg3, and the second time domain resource allocation information indication table includes the number of repeated transmissions of Msg3.

[0075] S604, the base station receives a random access preamble from a user terminal.

[0076] S606, the base station determines whether Msg3 repeated transmission is needed, if yes, continue to S608, if no, continue to S610.

[0077] S608, the base station sets a predetermined bit in the RAR to a first value; the base station generates a random access response including uplink grant information, wherein the time domain resource allocation information in the UL grant information in the random access response is generated according to the second time domain resource allocation information indication table, including the configuration information of the number of repeated transmissions of Msg3.

[0078] S610, the base station sets a predetermined bit in the RAR to a second value; the base station generates a random access response including uplink grant information, wherein the time domain resource allocation information is generated according to the first time domain resource allocation information indication table, wherein the configuration information of the number of repeated transmissions of Msg3 is not included.

[0079] ​S612, the base station sends a random access response including uplink grant information to the user terminal.

[0080] S614, the user terminal receives the random access response.

[0081] S616, the user terminal determines whether the predetermined bit of the RAR is the first value, if yes, continue S618, if no, continue S622.

[0082] S618, the user terminal determines the time domain resource allocation information according to the second time domain resource allocation information indication table, and determines the Msg3 repetition transmission number.

[0083] S620, the user terminal performs Msg3 repetition transmission according to the determined Msg3 repetition transmission number, and performs subsequent processing.

[0084] S622, the user terminal determines the time domain resource allocation information according to the first time domain resource allocation information indication table, wherein the configuration information of the Msg3 repetition transmission number is not included, and performs subsequent processing.

[0085] In the above embodiment, the base station determines whether to use the first time domain resource allocation information indication table or the second time domain resource allocation information indication table to generate the content of the time domain resource allocation field in the UL grant information by an explicit way, and performs different processing, which improves flexibility and resource utilization.

[0086] The MCS (modulation and coding strategy) field in the RAR UL grant information contains 4 bits, which is used to indicate the modulation and coding information of the user uplink transmission, and points to the first 16 rows of the MCS index table. In some embodiments, the configuration information of the Msg3 repetition transmission number is indicated by the MCS field in the RAR UL grant information.

[0087] For users who need coverage enhancement, the modulation and coding order is generally low, and high-order modulation and coding order is not used, and too fine modulation and coding indication is not needed. In some embodiments, the MCS field can be split into two parts, the first part contains 2 or 3 bits, which is used for original modulation and coding information indication, and the second part contains the remaining 2 or 1 bit, which is used to indicate the repetition transmission number of Msg3.

[0088] Figure 7 A data transmission method in a random access process according to another embodiment of the present disclosure is shown.

[0089] As shown in Figure 7 S702, the user terminal receives a random access response from the network side, and the random access response includes uplink grant information.

[0090] S704, the user terminal extracts the data of the MCS field from the uplink grant information.

[0091] S706, the user terminal determines the number of repeated transmissions of Msg3 according to the predetermined bit in the MCS field.

[0092] For example, assuming that the bit value of the MCS is 1101, the original modulation and coding information indicated by the index of "13" is indicated; taking splitting into two 2-bit as an example, i.e. 11|01, the modulation and coding information is now indicated by "11", i.e. the modulation and coding information indicated by the index of "3", and the number of repeated transmissions of Msg3 is indicated by "01", indicating the second of the four kinds of Msg3 repeated transmission configuration, taking the repeated transmission configuration of Msg3 as {1, 2, 4, 8} as an example, the indicated number of repeated transmissions of Msg3 is 2 times. It should be noted that the indication of the modulation and coding information after splitting does not limit to using only the first few rows of the corresponding MCS table, and a part of the indexes can be selected from the original 16 rows, and then an index is selected from these rows for indication. Taking the previous example as an example, if the indexes of {1, 3, 5, 7} of the table are selected, then "11" indicates the modulation and coding information indicated by the index of "5" in the table.

[0093] In some embodiments, the odd and even nature of the MCS index is used to indicate different numbers of repeated transmissions of Msg3, such as even indexes {0, 2, 4,.., 14} implicitly indicating the first number of repeated transmissions of Msg3, and odd indexes {1, 3, 5,.., 15} implicitly indicating the second number of repeated transmissions of Msg3. Considering that the number of data bits transmitted in the initial transmission of Msg3 is small, using adjacent MCSs will not cause too much impact on the transmission performance. For example, before using the present scheme, the index indicated by the original MCS is 5, but the first number of repeated transmissions of Msg3 is expected at this time, and an even index needs to be used for indication, so the base station needs to adjust the index indicated by the MCS to 4 or 6.

[0094] Figure 8 A data transmission method in a random access process according to still another embodiment of the present disclosure is shown.

[0095] As shown in Figure 8 S802, the user terminal receives a random access response from the network side, and the random access response includes uplink grant information.

[0096] S804, the user terminal extracts the MCS index of the MCS field from the uplink grant information.

[0097] S806, the user terminal determines the number of repeated transmissions of Msg3 according to the parity of the MCS index.

[0098] It should be noted that forFigure 7 and Figure 8 The embodiments shown in Figure 5 and Figure 6 The base station determines implicitly or explicitly whether to generate the content in the MCS field in the first way or the second way, and the user terminal receives the corresponding MCS indication and parses the data according to the corresponding way. In one embodiment, when the first predetermined condition is met, the content in the field in the uplink grant information is parsed in the first way, and the content in the field does not include the configuration information of the number of Msg3 repeated transmissions; when the second predetermined condition is met, the content in the field in the uplink grant information is parsed in the second way, and the content in the field includes the configuration information of the number of Msg3 repeated transmissions. The first predetermined condition can refer to the implicit or explicit judgment condition contained in Figure 5 or Figure 6 , and the first way can refer to parsing or processing according to the original way (i.e., according to the uplink grant information, the field does not include the configuration information of the number of Msg3 repeated transmissions), and the second way refers to parsing according to the way in the present disclosure that includes the configuration information of the number of Msg3 repeated transmissions.

[0099] In one embodiment, the configuration information of the number of Msg3 repeated transmissions is indicated by the channel state information (CSI) request field in the RAR UL grant information. The CSI request field contains 1 bit, and is currently reserved and not used. The field can be used for Msg3 repeated transmission configuration, such as bit "0" indicating the first number of Msg3 repeated transmissions and bit "1" indicating the second number of repeated transmissions. A specific embodiment is shown below. Figure 9

[0100] Figure 9 A data transmission method in a random access process according to another embodiment of the present disclosure is shown.

[0101] As shown in Figure 9 , S902, the user terminal receives a random access response from the network side, and the random access response includes uplink grant information.

[0102] S904, the user terminal extracts the value of the CSI field from the uplink grant information.

[0103] S906, the user terminal determines the number of Msg3 repeated transmissions according to the value of the CSI request field.

[0104] In some embodiments, the configuration information of the number of Msg3 repeated transmissions is indicated by the transmission power control (TPC) field in the RAR UL grant information.

[0105] ​The TPC field contains 3 bits for indicating the transmission power parameter of the Msg3, as shown in the following table.

[0106] TPC Command Value (in dB) 0 -6 1 -4 2 -2 3 0 4 2 5 4 6 6 7 8

[0107] Table 4

[0108] For the user whose Msg3 coverage is limited, full power transmission is generally used, and fine TPC control is not needed. Therefore, the TPC can be divided into two parts, the first part indicating the power control information, and the second part indicating the repetition number indication of the Msg3. Specifically, it can be divided into 0|3, 1|2, 2|1 three cases, wherein "0|3" means that no power control information indication is performed, full power is used by default, and 3 bits are used for the repetition number indication of the Msg3; "1|2" means that 1 bit is used to indicate the power control information, indicating a certain 2 row in the power control indication table, and 2 bits are used for the repetition number indication of the Msg3. Similarly, the above-mentioned cases can be extended.

[0109] Figure 10 A data transmission method in a random access process according to still another embodiment of the present disclosure is shown.

[0110] As Figure 10 shown, S1002, the user terminal receives a random access response from the network side, and the random access response includes uplink grant information.

[0111] S1004, the user terminal extracts the data of the TPC field from the uplink grant information.

[0112] S1006, the user terminal determines the repetition number of the Msg3 according to the predetermined bit in the TPC field.

[0113] In some embodiments, the bits of multiple fields in the uplink grant information are used to jointly indicate the repetition number of the Msg3. For example, assuming that the repetition number of the Msg3 needs to be indicated by 3 bits, the first bit is configured in the time domain resource allocation information, and the second and third bits are configured in the MCS field; or the first and second bits are configured in the time domain resource allocation information, and the third bit is configured in the MCS field. Similarly, all the above-mentioned schemes can be mixed to indicate the repetition number of the Msg3. Through the mixed indication mode, the requirement of the indication bits used by each field can be lowered, thereby being more flexible and having greater freedom.

[0114] Figure 11 A data transmission method in a random access process according to still another embodiment of the present disclosure is shown.

[0115] As Figure 11As shown, in S1102, the user terminal receives a random access response from the network side, which includes uplink authorization information.

[0116] S1104, the user terminal extracts the first predetermined bit of the first field from the uplink authorization information. The first predetermined bit may include one or more bits.

[0117] S1106, the user terminal extracts the second predetermined bit of the second field from the uplink authorization information. The second predetermined bit may include one or more bits.

[0118] S1108, the user terminal determines the number of times Msg3 will be repeatedly transmitted based on the first predetermined bit and the second predetermined bit. The user terminal can determine the number of times Msg3 will be repeatedly transmitted based on the value of the combination of the first predetermined bit and the second predetermined bit.

[0119] Figure 12 A schematic diagram of the structure of a base station according to this disclosure is shown. Figure 12 As shown, the base station includes: a preamble receiving module 1201, used to receive a random access preamble sent by the UE;

[0120] The response sending module 1202 is used to send a random access response (RAR) to the UE, wherein the RAR includes uplink grant (UL) information.

[0121] The UL grant information includes configuration information for the number of repeated transmissions of Msg3, so that the UE can determine the number of repeated transmissions of Msg3 based on the configuration information for the number of repeated transmissions of Msg3.

[0122] Figure 13 A schematic diagram of the structure of a user terminal according to this disclosure is shown. Figure 13 As shown, the user terminal includes: a preamble sending module 1301, used to send a random access preamble; a response receiving module 1302, used to receive a random access response (RAR) from the network side, wherein the RAR includes uplink grant (UL) information, wherein the UL grant information includes configuration information for the number of Msg3 retransmissions; and a retransmission count determination module 1303, used to determine the number of Msg3 retransmissions based on the configuration information for the number of Msg3 retransmissions in the UL grant information in the RAR.

[0123] The specific implementation of each module in the device provided in this embodiment can be referred to the content of the above method, and will not be repeated here.

[0124] Figure 14A structural schematic of an electronic device in embodiments of the present disclosure is shown. It should be noted that Figure 14 The device shown is merely an example of a computer system and should not be taken as limiting the scope of the functionality or use of embodiments of the present disclosure.

[0125] As Figure 14 shown, the device 1400 includes a central processing unit (CPU) 1401, which can perform various appropriate actions and processes according to programs stored in a read only memory (ROM) 1402 or loaded into a random access memory (RAM) 1403 from a storage section 1408. In the RAM 1403, various programs and data required for the operation of the device 1400 are also stored. The CPU 1401, the ROM 1402, and the RAM 1403 are connected to each other through a bus 1404. An input / output (I / O) interface 1405 is also connected to the bus 1404.

[0126] The following components are connected to the I / O interface 1405: an input section 1406 including a keyboard, a mouse, etc.; an output section 1407 including a display such as a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.; a storage section 1408 including a hard disk, etc.; and a communication section 1409 including a network interface card such as a LAN card, a modem, etc. The communication section 1409 performs communication processing via a network such as the Internet. A drive 1410 is also connected to the I / O interface 1405 as necessary. A removable recording medium 1411 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc. is attached to the drive 1410 as necessary, so that a computer program read therefrom is installed into the storage section 1408 as necessary.

[0127] In particular, the processes described above with reference to the flowcharts can be implemented as a computer software program according to embodiments of the present disclosure. For example, embodiments of the present disclosure include a computer program product comprising a computer program carried on a computer readable medium, the computer program containing program code for executing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network by the communication section 1409, and / or installed from the removable recording medium 1411. When the computer program is executed by the central processing unit (CPU) 1401, the above-described functions defined in the system of the present disclosure are executed.

[0128] Note that the computer-readable medium shown in the disclosure can be a computer-readable signal medium or a computer-readable storage medium or any combination thereof. The computer-readable storage medium, for example, can be, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or apparatus, or any combination thereof. More specific examples of the computer-readable storage medium can include, but are not limited to, an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the disclosure, the computer-readable storage medium can be any tangible medium that contains or stores a program that can be used by or in connection with an instruction execution system, apparatus, or device. In the disclosure, the computer-readable signal medium can include a data signal that propagates in a baseband or as part of a carrier wave, in which the computer-readable program code is carried. Such a propagated data signal can take a variety of forms, including, but not limited to, an electromagnetic signal, an optical signal, or any suitable combination of the above. The computer-readable signal medium can also be any computer-readable medium that is not a storage medium and that can be used to carry or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium can be transmitted by any suitable medium, including, but not limited to, wireless, wireline, optical fiber, RF, etc., or any suitable combination of the above.

[0129] The flow diagrams and block diagrams in the drawings are illustrations of possible architectures, functions, and operations of systems, methods, and computer program products in accordance with various embodiments of the present disclosure. In this regard, each block in the flow diagrams or block diagrams can represent a module, a segment, or a portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that in some alternative implementations, the functions noted in the blocks can occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently or the blocks can sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and / or flow diagrams, and combinations thereof, can be implemented by special purpose hardware-based systems that perform the specified functions or operations, or combinations of special purpose hardware and computer instructions.

[0130] The modules described in the embodiments of the present disclosure can be implemented in the form of software, or can be implemented in the form of hardware. The described modules can also be arranged in a processor, for example, a processor can be described as including a data acquisition module, a data preprocessing module, a recurrent network module, a convolutional network module, a data integration module, and a state classification module. Among them, the names of these modules do not constitute a limitation of the modules themselves in some cases, for example, the data acquisition module can also be described as "a module for acquiring initial data from a connected server side".

[0131] As another aspect, the present disclosure also provides a computer readable medium, which can be included in the device described in the above embodiments, or can exist independently without being assembled into the device. The computer readable medium described above stores computer executable instructions, and the executable instructions are executed by a processor to implement any of the above methods.

[0132] The exemplary embodiments of the present disclosure are specifically shown and described above. It should be understood that the present disclosure is not limited to the detailed structure, arrangement or implementation method described herein; on the contrary, the present disclosure is intended to cover various modifications and equivalent arrangements within the spirit and scope of the appended claims.

Claims

1. A method of data transmission in a random access procedure, characterized by, The method comprises: receiving a random access preamble sent by a user terminal; sending a random access response to the user terminal, the random access response comprising uplink grant information; wherein, when the random access preamble is used to request Msg3 repeated transmission, a modulation and coding strategy field in the uplink grant information comprises configuration information of the number of times of Msg3 repeated transmission, so that the user terminal determines the number of times of Msg3 repeated transmission according to the modulation and coding strategy field.

2. The data transmission method of claim 1, wherein, One or more predetermined bits in the modulation and coding strategy field in the uplink grant information comprise the configuration information of the number of times of Msg3 repeated transmission.

3. The data transmission method of claim 1, wherein, Different numbers of times of Msg3 repeated transmission are indicated according to the odd or even of a modulation and coding strategy index represented by the modulation and coding strategy field in the uplink grant information.

4. The data transmission method according to any one of claims 1 to 3, characterized in that, The method further comprises: when a first predetermined condition is met, parsing the content of the field in the uplink grant information in a first manner, which does not comprise the configuration information of the number of times of Msg3 repeated transmission; when a second predetermined condition is met, parsing the content of the field in the uplink grant information in a second manner, which comprises the configuration information of the number of times of Msg3 repeated transmission.

5. The data transmission method according to claim 4, wherein the first predetermined condition is that the user terminal does not request Msg3 repeated transmission; the second predetermined condition is that the user terminal requests Msg3 repeated transmission.

6. The data transmission method of claim 5, wherein, the first predetermined condition is that a predetermined bit in the random access response takes a first value, and the second predetermined condition is that the predetermined bit in the random access response takes a second value.

7. A method of data transmission in a random access procedure, characterized by, The method comprises: a user terminal sending a random access preamble; the user terminal receiving a random access response from a network side, the random access response comprising uplink grant information; when the random access preamble is used to request Msg3 repeated transmission, a modulation and coding strategy field in the uplink grant information comprises configuration information of the number of times of Msg3 repeated transmission; the user terminal determines the number of times of Msg3 repeated transmission according to the modulation and coding strategy field.

8. The data transmission method of claim 7, wherein, One or more predetermined bits in the modulation and coding strategy field in the uplink grant information comprise the configuration information of the number of times of Msg3 repeated transmission.

9. The data transmission method of claim 7, wherein, Different numbers of times of Msg3 repeated transmission are indicated according to the odd or even of a modulation and coding strategy index represented by the modulation and coding strategy field in the uplink grant information.

10. The data transmission method according to any one of claims 7-9, characterized by, The method further comprises: when a first predetermined condition is met, parsing the content of the field in the uplink grant information in a first manner, which does not comprise the configuration information of the number of times of Msg3 repeated transmission; when a second predetermined condition is met, parsing the content of the field in the uplink grant information in a second manner, which comprises the configuration information of the number of times of Msg3 repeated transmission.

11. The data transmission method of claim 10, wherein, the first predetermined condition is that the user terminal does not request Msg3 repeated transmission or the user terminal does not support Msg3 repeated transmission; the second predetermined condition is that the user terminal requests Msg3 repeated transmission.

12. The data transmission method of claim 10, wherein, the first predetermined condition is that a predetermined bit in the random access response takes a first value, and the second predetermined condition is that the predetermined bit in the random access response takes a second value.

13. A base station, characterized by The method comprises: The preamble receiving module is configured to receive a random access preamble sent by a user terminal. The response sending module is configured to send a random access response to the user terminal, wherein the random access response comprises uplink grant information. When the random access preamble is used to request Msg3 repetition transmission, a modulation and coding strategy field in the uplink grant information comprises configuration information of the number of Msg3 repetition transmissions, so that the user terminal determines the number of Msg3 repetition transmissions according to the modulation and coding strategy field.

14. A terminal, characterized by The preamble sending module is configured to send a random access preamble. The response receiving module is configured to receive a random access response from a network side, wherein the random access response comprises uplink grant information; when the random access preamble is used to request Msg3 repetition transmission, a modulation and coding strategy field in the uplink grant information comprises configuration information of the number of Msg3 repetition transmissions. The repetition number determining module is configured to determine the number of Msg3 repetition transmissions according to the modulation and coding strategy field. A memory, a processor, and executable instructions stored in the memory and executable in the processor, wherein the processor implements the method according to any one of claims 1-12 when executing the executable instructions.

15. An apparatus comprising: The executable instructions are executed by the processor to implement the method according to any one of claims 1-12.

16. A computer-readable storage medium having stored thereon computer- executable instructions, wherein, ​

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