CN117545100A

CN117545100A - Msg3 repeated transmission parameter determining method, device and storage medium

Info

Publication number: CN117545100A
Application number: CN202210900902.5A
Authority: CN
Inventors: 沈姝伶; 邢艳萍
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2024-02-09
Also published as: WO2024022025A1

Abstract

The embodiment of the application provides a method, a device and a storage medium for determining Msg3 repeated transmission parameters, which are applied to a terminal, wherein the method comprises the following steps: and determining a candidate value set of Msg3 repeated transmission parameters based on the actual transmission times of the plurality of PRACH. According to the method and the device, the candidate value sets of different Msg3 repeated transmission parameters are determined based on different PRACH actual transmission times in one cell, so that the access requirements of all terminals with different coverage limit degrees in the cell are met, and meanwhile, the waste of partial Msg3 transmission resources is avoided.

Description

Msg3 repeated transmission parameter determining method, device and storage medium

Technical Field

The present disclosure relates to the field of wireless communications technologies, and in particular, to a method and an apparatus for determining an Msg3 retransmission parameter, and a storage medium.

Background

In the random access procedure, the terminal sends a Message 3 (Message 3, msg 3), and the terminal needs to know the Msg3 retransmission parameters.

In the prior art, a cell informs a candidate value set of the Msg3 retransmission parameter by a system information block 1 (System Information Block 1, sib1), and when the candidate value set of the Msg3 retransmission parameter is not configured in the SIB1, the default candidate value set is taken as the candidate value set of the Msg3 retransmission parameter. The candidate value sets of the Msg3 retransmission parameters in one cell are all fixed unique.

Terminals with different coverage in a cell need different Msg3 retransmission parameters in order to complete random access. The fixed Msg3 repeated transmission parameter candidate value in one cell can not meet the access requirements of terminals with different coverage conditions in the cell, so that the random access failure or the resource waste of the terminals are caused.

Disclosure of Invention

Aiming at the problems in the prior art, the embodiment of the application provides a method and a device for determining Msg3 repeated transmission parameters and a storage medium.

In a first aspect, an embodiment of the present application provides a method for determining an Msg3 retransmission parameter, which is applied to a terminal, including:

and determining a candidate value set of Msg3 repeated transmission parameters based on the actual transmission times of the plurality of PRACH.

In some embodiments, the determining the candidate set of Msg3 retransmission parameters based on the number of actual PRACH transmissions includes:

determining a first set; the first set is an initial candidate value set of Msg3 repeated transmission times;

and determining a candidate value set of the Msg3 repeated transmission parameters based on the actual transmission times of the multiple PRACH and the first set.

In some embodiments, determining the candidate set of Msg3 retransmission parameters based on the number of actual transmissions of the multiple PRACHs and the first set comprises:

Determining a scaling factor based on the multiple PRACH actual transmission times;

a set of candidate values for the Msg3 duplicate transmission parameter is determined based on the first set and the scaling factor.

In some embodiments, the determining a scaling factor based on the number of actual transmissions of the multiple PRACHs includes:

determining a first multiple PRACH repeat number of transmissions corresponding to the first set;

and determining the scaling factor based on the actual transmission times of the plurality of PRACH and the repeated transmission times of the first plurality of PRACH.

determining a first number of multiple PRACH transmissions corresponding to the first set, and a first coefficient;

and determining the scaling factor based on the multiple PRACH actual transmission times, the first multiple PRACH transmission times and the first coefficient.

In some embodiments, the determining the candidate set of Msg3 retransmission parameters based on the first set and the scaling factor comprises:

scaling the first set by using the scaling factor to obtain a second set;

a set of candidate values for the Msg3 repeat transmission parameters is determined based on the second set.

In some embodiments, the determining a candidate set of values for the Msg3 retransmission parameter based on the second set comprises:

and quantizing the candidate values in the second set to determine a candidate value set of the Msg3 repeated transmission parameters.

In some embodiments, the quantizing the candidate values in the second set, determining the candidate value set for the Msg3 repeat transmission parameter, includes:

quantizing candidate values in the second set based on a power of 2, and determining a candidate value set of Msg3 repeated transmission times; or,

and quantizing the candidate values in the second set based on the fixed candidate value set, and determining the candidate value set of Msg3 repeated transmission times.

In some embodiments, determining a candidate set of Msg3 retransmission parameters based on a number of actual PRACH transmissions comprises:

determining the corresponding relation among the candidate value set of the multiple PRACH transmission times, the Msg3 repeated transmission times and the candidate value set of the MCS used by the Msg3 repeated transmission;

and determining a candidate value set of Msg3 repeated transmission parameters based on the actual transmission times of the multiple PRACH and the corresponding relation.

In a second aspect, an embodiment of the present application provides a Msg3 retransmission parameter determining method, applied to a network device, including:

Determining the actual transmission times of multiple PRACH of a terminal;

and determining a candidate value set of Msg3 repeated transmission parameters of the terminal based on the actual transmission times of the multiple PRACH of the terminal.

In some embodiments, the determining the candidate value set of the Msg3 retransmission parameter of the terminal based on the multiple PRACH actual transmission times of the terminal includes:

and determining a candidate value set of Msg3 repeated transmission parameters of the terminal based on the actual transmission times of the PRACH of the terminal and the first set.

In some embodiments, the determining the candidate value set of the Msg3 retransmission parameter of the terminal based on the multiple PRACH actual transmission times of the terminal and the first set includes:

determining a scaling factor based on a number of actual transmissions of the plurality of PRACHs of the terminal;

a set of candidate values for Msg3 duplicate transmission parameters of the terminal is determined based on the first set and the scaling factor.

In some embodiments, the determining a scaling factor based on the number of actual transmissions of the multiple PRACHs of the terminal includes:

determining a first number of multiple PRACH transmissions corresponding to the first set;

And determining the scaling factor based on the actual transmission times of the multiple PRACH of the terminal and the repeated transmission times of the first multiple PRACH.

and determining the scaling factor based on the actual transmission times of the multiple PRACH of the terminal, the first transmission times of the multiple PRACH and the first coefficient.

In some embodiments, the determining a candidate set of Msg3 retransmission parameters for the terminal based on the first set and the scaling factor comprises:

scaling the first set by using the scaling factor to obtain a second set;

a set of candidate values for Msg3 repeat transmission parameters of the terminal is determined based on the second set.

In some embodiments, the determining, based on the second set, a candidate set of Msg3 retransmission parameters for the terminal includes:

and quantizing the candidate values in the second set, and determining a candidate value set of Msg3 repeated transmission parameters of the terminal.

In some embodiments, the quantizing the candidate values in the second set, determining a candidate value set of Msg3 retransmission parameters for the terminal includes:

Quantizing candidate values in the second set based on a power of 2, and determining a candidate value set of Msg3 repeated transmission times of the terminal; or,

and quantizing the candidate values in the second set based on the fixed candidate value set, and determining the candidate value set of the Msg3 repeated transmission times of the terminal.

and determining a candidate value set of Msg3 repeated transmission parameters of the terminal based on the actual transmission times of the PRACH of the terminal and the corresponding relation.

In a third aspect, embodiments of the present application provide a terminal, including a memory, a transceiver, and a processor:

a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and executing the Msg3 retransmission parameter determination method according to the first aspect as described above.

In a fourth aspect, embodiments of the present application provide a network device, including a memory, a transceiver, and a processor:

a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and executing the Msg3 retransmission parameter determination method according to the second aspect described above.

In a fifth aspect, an embodiment of the present application provides an Msg3 retransmission parameter determining apparatus, including:

and the first determining module is used for determining a candidate value set of Msg3 repeated transmission parameters based on the actual transmission times of the PRACH.

In some embodiments, the first determining module comprises: a first determination sub-module and a second determination sub-module, wherein:

the first determining submodule is used for determining a first set; the first set is an initial candidate value set of Msg3 repeated transmission times;

the second determining submodule is configured to determine a candidate value set of the Msg3 repeated transmission parameter based on the multiple PRACH actual transmission times and the first set.

In some embodiments, the second determination submodule includes: a first determination unit and a second determination unit, wherein:

The first determining unit is configured to determine a scaling factor based on the multiple PRACH actual transmission times;

the second determining unit is configured to determine a candidate value set of the Msg3 repeated transmission parameter based on the first set and the scaling factor.

In some embodiments, the first determining unit is specifically configured to: determining a first multiple PRACH repeat number of transmissions corresponding to the first set;

In some embodiments, the first determining unit is specifically configured to: determining a first number of multiple PRACH transmissions corresponding to the first set, and a first coefficient;

In some embodiments, the second determining unit includes: a first acquisition subunit and a first determination subunit; wherein:

the first obtaining subunit is configured to scale the first set by using the scaling factor to obtain a second set;

the first determining subunit is configured to determine, based on the second set, a candidate set of values for the Msg3 repeated transmission parameter.

In some embodiments, the first determining subunit is specifically configured to: and quantizing the candidate values in the second set to determine a candidate value set of the Msg3 repeated transmission parameters.

In some embodiments, the first determining subunit is specifically configured to: quantizing candidate values in the second set based on a power of 2, and determining a candidate value set of Msg3 repeated transmission times; or,

In some embodiments, the first determining module comprises: a third determination sub-module and a fourth determination sub-module; wherein:

the third determining submodule is used for determining the corresponding relation among the candidate value set of the multiple PRACH transmission times, the Msg3 repeated transmission times and the candidate value set of the MCS used by the Msg3 repeated transmission;

the fourth determining submodule is used for determining a candidate value set of Msg3 repeated transmission parameters based on the actual transmission times of the multiple PRACH and the corresponding relation.

In a sixth aspect, an embodiment of the present application provides an Msg3 retransmission parameter determining apparatus, including:

A second determining module, configured to determine the actual transmission times of the multiple PRACH of the terminal;

and a third determining module, configured to determine a candidate value set of Msg3 repeated transmission parameters of the terminal based on the actual transmission times of the multiple PRACH of the terminal.

In some embodiments, the third determination module includes: a fifth determination sub-module and a sixth determination sub-module; wherein:

the fifth determining submodule is used for determining the first set; the first set is an initial candidate value set of Msg3 repeated transmission times;

the sixth determining submodule is configured to determine a candidate value set of Msg3 repeated transmission parameters of the terminal based on the number of times of multi-PRACH actual transmission of the terminal and the first set.

In some embodiments, the sixth determination submodule includes: a third determination unit and a fourth determination unit; wherein: the third determining unit is configured to determine a scaling factor based on the multiple PRACH actual transmission times of the terminal;

the fourth determining unit is configured to determine a candidate value set of Msg3 repeated transmission parameters of the terminal based on the first set and the scaling factor.

In some embodiments, the third determining unit is specifically configured to: determining a first number of multiple PRACH transmissions corresponding to the first set;

In some embodiments, the third determining unit is specifically configured to: determining a first number of multiple PRACH transmissions corresponding to the first set, and a first coefficient;

In some embodiments, the fourth determining unit includes: a second acquisition subunit and a second determination subunit; wherein:

the second obtaining subunit is configured to scale the first set by using the scaling factor to obtain a second set;

the second determining subunit is configured to determine, based on the second set, a candidate set of Msg3 repeated transmission parameters of the terminal.

In some embodiments, the second determining subunit is specifically configured to: and quantizing the candidate values in the second set, and determining a candidate value set of Msg3 repeated transmission parameters of the terminal.

In some embodiments, the second determining subunit is specifically configured to: quantizing candidate values in the second set based on a power of 2, and determining a candidate value set of Msg3 repeated transmission times of the terminal; or,

In some embodiments, the third determination module includes: a seventh determination sub-module and an eighth determination sub-module; wherein:

the seventh determining submodule is used for determining the corresponding relation among the candidate value set of the multiple PRACH transmission times, the Msg3 repeated transmission times and the candidate value set of the MCS used by the Msg3 repeated transmission;

the eighth determining submodule is configured to determine a candidate value set of Msg3 repeated transmission parameters of the terminal based on the actual transmission times of the multiple PRACH of the terminal and the correspondence.

In a seventh aspect, embodiments of the present application further provide a processor-readable storage medium storing a computer program for causing the processor to execute the Msg3 retransmission parameter determining method according to the first aspect or the second aspect.

In an eighth aspect, embodiments of the present application further provide a computer-readable storage medium storing a computer program for causing a computer to execute the Msg3 retransmission parameter determining method according to the first aspect or the second aspect.

In a ninth aspect, embodiments of the present application further provide a communication device readable storage medium storing a computer program for causing a communication device to execute the Msg3 retransmission parameter determining method according to the first or second aspect.

In a tenth aspect, embodiments of the present application further provide a chip product readable storage medium storing a computer program for causing a chip product to perform the Msg3 retransmission parameter determining method according to the first or second aspect described above.

According to the method, the device and the storage medium for determining the Msg3 repeated transmission parameters, different candidate value sets of the Msg3 repeated transmission parameters are determined in one cell based on different PRACH actual transmission times, so that access requirements of all terminals with different coverage limit degrees in the cell are met, and meanwhile, partial Msg3 transmission resource waste is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of an initial access flow provided in an embodiment of the present application;

fig. 2 is one of flow diagrams of a Msg3 retransmission parameter determining method provided in an embodiment of the present application;

fig. 3 is a second flowchart of a Msg3 retransmission parameter determining method according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a terminal provided in an embodiment of the present application;

fig. 5 is a schematic structural diagram of a network device according to an embodiment of the present application;

fig. 6 is one of schematic structural diagrams of an Msg3 retransmission parameter determining apparatus according to an embodiment of the present application;

fig. 7 is a second schematic structural diagram of an Msg3 retransmission parameter determining apparatus according to an embodiment of the present application.

Detailed Description

The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In order to facilitate a clearer understanding of the embodiments of the present application, some related technical knowledge will be described first.

Fig. 1 is a schematic diagram of an initial access flow provided in an embodiment of the present application, as shown in fig. 1, where initial access needs to be performed after a terminal completes cell search and successfully receives SIB1 information. SIB1 information informs all the terminals to be accessed in the cell of configuration information of a random access channel (Random Access Channel, RACH), including time-frequency domain resources transmitted by a physical random access channel (Physical Random Access Channel, PRACH), the number of preambles (preambles) available for contention access by the terminal, association relation of preamble packet, synchronization signal block (Synchronization Signal Block, SSB) and random access channel transmission opportunity (RACH acknowledgement, RO), and the like.

SIB1 may also be configured with Msg3 transmission parameters including the number of Msg3 retransmissions and the MCS used for the Msg3 retransmission. The Msg3 retransmission times set contains four candidate values, and the four candidate values can only be selected from {1,2,3,4,7,8,12,16 }. If SIB1 does not configure the candidate set of Msg3 number of retransmissions, then the default value of the candidate set of Msg3 number of retransmissions is {1,2,3,4}. The MCS set used by Msg3 retransmission contains eight candidate values, which may be optionally eight from the existing MCS table. If SIB1 does not configure the MCS candidate set for Msg3 repeat transmission, then Msg3 repeat transmission uses MCS candidate set with default values of {0,1,2,3,4,5,6,7, }.

The terminal first selects an SSB satisfying the access condition (for example, the RSRP corresponding to the SSB is greater than a threshold value) according to the measurement result of the reference signal received power (Reference Signal Received Power, RSRP) of the SSB, and sends the PRACH in the RO associated with the selected SSB to initiate random access. In the coverage enhancement technology study of Rel-18, multiple (multi) PRACH transmissions in a random access procedure are supported to improve the transmission performance of PRACH.

The terminal then receives RAR information sent by the network side within a specified random access response (Random Access Response, RAR) window, where the RAR further includes an UpLink (UL) grant (grant) for scheduling Msg 3. Rel-17 introduces Msg3 retransmission to improve coverage performance of Msg3, and the network side indicates the retransmission times of Msg3 through the high 2 bits of the modulation and coding strategy (Modulation and Coding Scheme, MCS) domain in the UL grant, and 4 states of the 2 bits correspond to 4 values in the Msg3 retransmission times candidate value set. The lower 2 bits of the MCS field are used to indicate the MCS used by the Msg3 retransmission, and the 4 states of the 2 bits correspond to the first 4 values in the MCS candidate value set used by the Msg3 retransmission.

If the network side does not correctly receive the Msg3 scheduled by the UL grant, the network side may schedule Msg3 retransmission in the downlink control information (Downlink Control Information, DCI) format 1_0 scrambled by a Temporary Cell radio network Temporary flag (TC-RNTI). The high 2 bits of the MCS field in the DCI format 1_0 scrambled by the TC-RNTI are also used to indicate the number of retransmission times of the Msg3 retransmission, and the 4 states of the 2 bits still correspond to the 4 values in the Msg3 number of retransmission candidate value set. The lower 3 bits of the MCS field are used to indicate the MCS used by the Msg3 retransmission, and the 8 states of the 3 bits correspond to the 8 values in the MCS candidate value set used by the Msg3 retransmission. After the network side correctly receives the Msg3, the Msg4 is sent to the terminal for contention resolution.

Fig. 2 is one of flow diagrams of a Msg3 retransmission parameter determining method provided in the embodiment of the present application, and as shown in fig. 2, the embodiment of the present application provides a Msg3 retransmission parameter determining method, where an execution body is a terminal, for example: the method comprises the following steps:

step 201, determining a candidate value set of Msg3 repeated transmission parameters based on the actual transmission times of the multiple PRACH.

Specifically, the actual number of times of transmission of the multiple PRACH is the number of times of message transmission of the multiple PRACH actually adopted by the terminal in the random access process, and the message may be Msg1.

The candidate value set of the Msg3 retransmission parameter may be a candidate value set of Msg3 retransmission times and a candidate value set of MCS used for Msg3 retransmission, or may be a candidate value set of Msg3 retransmission times.

The terminal may determine a candidate set of Msg3 repeated transmission parameters based on the number of actual transmissions of the multiple PRACH.

For example, the network device configures or predefines a correspondence between the number of multi-PRACH transmissions and the candidate set of Msg3 retransmission parameters. Based on the actual transmission times of the PRACH and the corresponding relation, the terminal determines a candidate value set of Msg3 repeated transmission times corresponding to the actual transmission times of the PRACH and a candidate value set of MCS used by the Msg3 repeated transmission, thereby determining a candidate value set of Msg3 repeated transmission parameters.

For example, the network device configures or predefines an initial candidate set of Msg3 retransmission parameters and a number of PRACH transmissions corresponding to the initial candidate set of Msg3 retransmission parameters. The terminal scales the initial candidate value set of the Msg3 repeated transmission parameters based on the relation between the multiple PRACH transmission times corresponding to the initial candidate value set of the Msg3 repeated transmission parameters and the multiple PRACH actual transmission times so as to determine the candidate value set of the Msg3 repeated transmission parameters.

According to the Msg3 repeated transmission parameter determining method, different candidate value sets of Msg3 repeated transmission parameters are determined in one cell based on different PRACH actual transmission times, so that access requirements of all terminals with different coverage limit degrees in the cell are met, and meanwhile waste of partial Msg3 transmission resources is avoided.

Specifically, the network device configures or predefines an initial candidate value set of Msg3 retransmission times, and takes the initial candidate value set of Msg3 retransmission times as a first set.

The terminal may determine the first set by receiving a first set of network device configurations or by being based on a predefined first set.

The terminal scales the first set based on the actual transmission times of the multiple PRACH, thereby determining a candidate value set of the Msg3 repeated transmission parameters.

For example, the network device configures or predefines coefficients corresponding to different multiple PRACH transmission times, and the terminal scales the first set based on the coefficients corresponding to the multiple PRACH actual transmission times to determine a candidate set of Msg3 repeated transmission parameters.

For example, the network device configures or predefines the number of multiple PRACH transmissions corresponding to the first set, and the terminal scales the first set based on a relationship between the number of multiple PRACH transmissions corresponding to the first set and the number of actual multiple PRACH transmissions, so as to determine a candidate set of Msg3 repeated transmission parameters.

According to the Msg3 repeated transmission parameter determining method, the initial candidate value set of the Msg3 repeated transmission times is determined, scaling is carried out on the initial candidate value set of the Msg3 repeated transmission times based on the actual transmission times of a plurality of PRACH, the candidate value sets of different Msg3 repeated transmission parameters are determined based on different actual transmission times of the PRACH, the access requirements of all terminals with different coverage limit degrees in a cell are met, and meanwhile partial Msg3 transmission resource waste is avoided.

The terminal may determine the scaling factor based on the number of actual transmissions of the multiple PRACH.

For example, the network device configures or predefines scaling factors corresponding to different multiple PRACH transmission times, respectively, which may correspond to the same or different scaling factors. And the terminal determines a scaling factor corresponding to the actual transmission times of the plurality of PRACH based on the actual transmission times of the plurality of PRACH.

For example, the network device configures or predefines a number of multiple PRACH transmissions corresponding to the first set. The terminal determines a scaling factor based on a relationship between the number of times of multi-PRACH transmission corresponding to the first set and the number of times of multi-PRACH actual transmission.

After determining the scaling factor, the terminal scales the first set with the scaling factor to determine a candidate set of Msg3 duplicate transmission parameters.

For example, the terminal directly uses the scaled first set as a candidate value set of Msg3 repeated transmission parameters.

For example, after the terminal scales the first set, candidate values in the scaled first set are not non-negative integers or do not meet the actual requirements, the scaled first set needs to be quantized, and the scaled quantized first set is used as a candidate value set of the Msg3 repeated transmission parameters.

According to the Msg3 repeated transmission parameter determining method, the terminal determines the scaling factor based on the actual transmission times of the multiple PRACH, and scales the first set based on the scaling factor, so that the candidate value sets of different Msg3 repeated transmission parameters are determined based on different PRACH transmission times, the access requirements of all terminals with different coverage limit degrees in a cell are met, and meanwhile, the waste of partial Msg3 transmission resources is avoided.

and determining the scaling factor based on the multiple PRACH actual transmission times and the first multiple PRACH transmission times.

Specifically, the terminal determines the first multiple PRACH transmission times corresponding to the first set by receiving the first multiple PRACH transmission times corresponding to the first set configured by the network device, or based on the first multiple PRACH transmission times corresponding to the predefined first set.

The terminal determines a scaling factor based on a ratio of the number of actual transmissions of the plurality of PRACHs to the number of transmissions of the first plurality of PRACHs.

For example, the network device configures a set of first sets {1,2,3,4}, and configures a first number of PRACH transmissions corresponding to the first set to be 1. Additionally, the network device is also configured with 4 multiple PRACH transmission times {1,2,4,6}.

When the actual transmission times of the plurality of PRACH are determined to be 2, the ratio of the actual transmission times of the plurality of PRACH to the first transmission times of the plurality of PRACH is 2/1, namely the scaling factor is 2.

When the actual transmission times of the plurality of PRACH are determined to be 4, the ratio of the actual transmission times of the plurality of PRACH to the first transmission times of the plurality of PRACH is 4/1, namely the scaling factor is 4.

When the actual transmission times of the plurality of PRACH are determined to be 6, the ratio of the actual transmission times of the plurality of PRACH to the first transmission times of the plurality of PRACH is 6/1, namely the scaling factor is 6.

According to the Msg3 repeated transmission parameter determining method, the terminal determines the scaling factor based on the ratio of the first multiple PRACH transmission times corresponding to the first set to the actual multiple PRACH transmission times, so that the method is favorable for determining candidate value sets of different Msg3 repeated transmission parameters based on different PRACH transmission times, meets the access requirements of all terminals with different coverage limit degrees in a cell, and meanwhile avoids part of Msg3 transmission resource waste.

The terminal determines the first coefficient by receiving the first coefficient configured by the network device or based on a predefined first coefficient.

For example, the terminal determines a first multiple PRACH transmission number corresponding to a first set by receiving the first multiple PRACH transmission number corresponding to the first set configured by the network device; the terminal determines a first coefficient based on a predefined first coefficient.

For example, the terminal determines the first multiple PRACH transmission times and the first coefficient corresponding to the first set by receiving the first multiple PRACH transmission times and the first coefficient corresponding to the first set respectively configured by the network device.

The first coefficient has a corresponding relation with the actual transmission times of the multiple PRACH, and different actual transmission times of the multiple PRACH can correspond to the same or different first coefficients.

The terminal determines a ratio of actual transmission times of the plurality of PRACH to the first plurality of PRACH transmission times, and determines a scaling factor based on a product of the ratio and the first coefficient.

For example, the network device configures a set of the first set {1,2,3,4}, configures a first number of PRACH transmissions corresponding to the first set to be 1, and configures a first coefficient to be 1.5. The first coefficients corresponding to the actual transmission times of different multiple PRACH are the same and are all 1.5. Additionally, the network device is also configured with 4 multiple PRACH transmission times {1,2,4,6}.

When the actual transmission times of the multiple PRACH are determined to be 2, the ratio of the actual transmission times of the multiple PRACH to the first multiple PRACH transmission times is 2/1, the first coefficient corresponding to the actual transmission times of the multiple PRACH 2 is 1.5, and the scaling factor is 2 x 1.5, namely 3.

When the actual transmission times of the multiple PRACH are determined to be 4, the ratio of the actual transmission times of the multiple PRACH to the first multiple PRACH transmission times is 4/1, the first coefficient corresponding to the actual transmission times of the multiple PRACH 4 is 1.5, and the scaling factor is 4 x 1.5, namely 6.

When the actual transmission times of the multiple PRACH are determined to be 6, the ratio of the actual transmission times of the multiple PRACH to the first multiple PRACH transmission times is 6/1, the first coefficient corresponding to the actual transmission times of the multiple PRACH 6 is 1.5, and the scaling factor is 6 x 1.5, namely 9.

For example, the network device configures a set of first sets {1,2,3,4}, configures a first number of PRACH transmissions corresponding to the first set to be 1, and configures a first set of coefficients to be {0.5,1,1.5}. The first coefficients corresponding to the actual transmission times of different multiple PRACH are different. Additionally, the network device is also configured with 4 multiple PRACH transmission times {1,2,4,6}.

When the actual transmission times of the plurality of PRACH are determined to be 4, the ratio of the actual transmission times of the plurality of PRACH to the first transmission times of the plurality of PRACH is 4/1, the first coefficient corresponding to the actual transmission times of the plurality of PRACH 4 is 1, and the scaling factor is 4*1, namely 4.

When the actual transmission times of the plurality of PRACH are determined to be 6, the ratio of the actual transmission times of the plurality of PRACH to the first transmission times of the plurality of PRACH is 6/1, the first coefficient corresponding to the actual transmission times of the plurality of PRACH 6 is 0.5, and the scaling factor is 6 x 0.5, namely 3.

According to the Msg3 repeated transmission parameter determining method, the terminal determines the scaling factor based on the ratio of the first multiple PRACH transmission times corresponding to the first set to the actual multiple PRACH transmission times and the first coefficient, so that the method is favorable for determining candidate value sets of different Msg3 repeated transmission parameters based on different PRACH actual transmission times, meets the access requirements of all terminals with different coverage limit degrees in a cell, and meanwhile avoids part of Msg3 transmission resource waste.

scaling the first set by using the scaling factor to obtain a second set;

Specifically, after determining the scaling factor, the terminal scales the first set by using the scaling factor to obtain the second set. The second set is the scaled first set.

For example, the first set is {1,2,3,4}, the scaling factor is 2, and the second set is {2,4,6,8}.

For example, the first set is {2,8,12,16}, the scaling factor is 0.5, and the second set is {1,4,6,8}.

After determining the second set, the terminal may directly use the second set as a candidate set of Msg3 repeated transmission parameters, and may quantize the second set, and use the quantized second set as a candidate set of Msg3 repeated transmission parameters.

According to the Msg3 repeated transmission parameter determining method, the terminal scales the first set by utilizing the scaling factor, and determines the candidate value set of the Msg3 repeated transmission parameter based on the scaled first set, so that the access requirements of all terminals with different coverage limit degrees in a cell can be met, and meanwhile, the waste of partial Msg3 transmission resources is avoided.

Specifically, after the second set is acquired, the candidate values in the second set may have a situation that the candidate values are not non-negative integers or do not meet the actual requirement, the candidate values in the second set need to be quantized, and the quantized second set is used as a candidate value set of the Msg3 repeated transmission parameters.

For example, the second set is {2,4,6,8}, quantized according to the Msg3 repetition number set {1,2,3,4,7,8,12,16} defined in Rel-17. The terminal may quantize each candidate value in the second set to be equal to or greater than a minimum value of the candidate values in the Msg3 repetition number set defined in Rel-17, and the second set {2,4,6,8} is quantized to {2,4,7,8}.

For example, the second set is {2,4,6,8}, the candidate values in the second set are quantized to a power of 2, the terminal may quantize each candidate value in the second set to a power of less than or equal to the maximum 2 of the candidate values, and the second set {2,4,6,8} is quantized to {2,4,4,8}.

According to the Msg3 repeated transmission parameter determining method, the terminal quantizes the second set, and the quantized second set is used as the candidate value set of the Msg3 repeated transmission parameter, so that the access requirements of all terminals with different coverage limit degrees in a cell are met, and meanwhile, the waste of partial Msg3 transmission resources is avoided.

Specifically, the terminal quantizes the candidate values in the second set to a power of 2 number equal to or greater than 1. The terminal may quantize each candidate in the second set to a power of 2 or less of the largest of the candidates.

For example, the second set is {2,4,6,8}, and the quantized second set is {2,4,4,8}.

The terminal may also quantize each candidate value in the second set to a power of 2 or more of the smallest candidate value.

For example, the second set is {2,4,6,8}, and the quantized second set is {2,4,8,8}.

The terminal quantizes the candidate values in the second set into candidate values in the fixed set of candidate values. The fixed candidate set may be predefined.

For example, the fixed candidate set is the Msg3 repetition number set {1,2,3,4,7,8,12,16} defined in Rel-17, or the power of part 2 set, such as {1,2,4,8,16,32}, or any other predefined set of numbers.

The fixed candidate set may be configured by the network device, and the candidates in the fixed candidate set configured by the network device may be any numerical values, or may be some numerical sets not exceeding a certain maximum value.

The terminal may quantize each candidate in the second set to a maximum value of less than or equal to the candidate in the fixed set of candidates.

For example, the second set is {6,12,18,24}, the fixed set is {1,2,3,4,7,8,12,16}, and the quantized second set is {4,12,16,16}.

The terminal may further quantize each candidate in the second set to a minimum value of the fixed set of candidates that is greater than or equal to the candidate. If the candidate is greater than the maximum value in the fixed set, the candidate is quantized to the maximum value in the fixed set.

For example, the second set is {6,12,18,24}, the fixed set is {1,2,3,4,7,8,12,16}, and the quantized second set is {7,12,16,16}.

According to the Msg3 repeated transmission parameter determining method, the terminal quantizes the second set based on the power of 2 or the fixed candidate value set, and the quantized second set is used as the candidate value set of the Msg3 repeated transmission parameter, so that the access requirements of all terminals with different coverage limit degrees in a cell are met, and meanwhile, the waste of partial Msg3 transmission resources is avoided.

Specifically, the terminal determines the correspondence between the candidate value set of the multiple PRACH transmission times, the candidate value set of the Msg3 retransmission times and the candidate value set of the MCS used by the Msg3 retransmission by receiving the correspondence between the candidate value set of the multiple PRACH transmission times, the Msg3 retransmission times and the candidate value set of the MCS used by the Msg3 retransmission configured by the network device, or based on the correspondence between the candidate value set of the predefined multiple PRACH transmission times, the candidate value set of the Msg3 retransmission times and the candidate value set of the MCS used by the Msg3 retransmission times.

The correspondence between the candidate value set of the number of PRACH transmissions, the number of Msg3 repeated transmissions, and the candidate value set of the MCS used by Msg3 repeated transmissions may be a one-to-one correspondence.

For example, table 1 is a one-to-one correspondence table, and as shown in table 1, one multiple PRACH transmission number corresponds to one candidate set of Msg3 retransmission number and one candidate set of MCS used by Msg3 retransmission.

Table 1 one-to-one correspondence table

/>

The correspondence between the candidate set of the number of PRACH transmissions, the number of Msg3 retransmissions, and the candidate set of MCS used by Msg3 retransmissions may be a many-to-one relationship.

For example, table 2 is a many-to-one relationship table, and as shown in table 2, a plurality of multiple PRACH transmission times corresponds to a candidate set of Msg3 retransmission times and a candidate set of MCSs used for Msg3 retransmission.

TABLE 2 many-to-one relationship table

The terminal determines a candidate value set of Msg3 repeated transmission times corresponding to the multiple PRACH actual transmission times and a candidate value set of MCS used by Msg3 repeated transmission based on the multiple PRACH actual transmission times and the corresponding relation, and determines a candidate value set of Msg3 repeated transmission parameters from the candidate value set of Msg3 repeated transmission times corresponding to the multiple PRACH actual transmission times and the candidate value set of MCS used by Msg3 repeated transmission.

For example, the number of actual transmission times of the multiple PRACH is 1, the candidate set of the number of Msg3 retransmission times corresponding to the number of actual transmission times of the multiple PRACH is {1,2,3,4}, and the candidate set of the MCS used for the corresponding Msg3 retransmission is {2,3,5,6,7,9,10,14}, the candidate set of the number of Msg3 retransmission times in the Msg3 retransmission parameter is {1,2,3,4}, and the candidate set of the MCS used for the Msg3 retransmission in the Msg3 retransmission parameter is {2,3,5,6,7,9,10,14}.

For example, when the number of actual transmission times of multiple PRACH is 1 or 2, the candidate value sets of the number of Msg3 retransmission times corresponding to the number of actual transmission times of multiple PRACH is {1,2,3,4}, and the candidate value sets of the MCS used for the corresponding Msg3 retransmission are {2,3,5,6,7,9,10,14}, the candidate value set of the number of Msg3 retransmission times in the Msg3 retransmission parameter is {1,2,3,4}, and the candidate value set of the MCS used for the Msg3 retransmission in the Msg3 retransmission parameter is {2,3,5,6,7,9,10,14}.

According to the Msg3 repeated transmission parameter determining method, the terminal determines the candidate value set of the Msg3 repeated transmission parameter based on the actual transmission times and the corresponding relation of the PRACH by determining the corresponding relation among the multiple PRACH transmission times, the candidate value set of the Msg3 repeated transmission times and the candidate value set of the MCS used by the Msg3 repeated transmission, so that the candidate value sets of different Msg3 repeated transmission parameters based on different PRACH transmission times are determined, the access requirements of all terminals with different coverage limit degrees in a cell are met, and meanwhile, the waste of partial Msg3 transmission resources is avoided.

Fig. 3 is a second flowchart of a Msg3 retransmission parameter determining method according to the embodiment of the present application, as shown in fig. 3, where an execution body is a network device, for example: a base station, the method comprising:

step 301, determining the actual transmission times of multiple PRACH of the terminal.

The terminal carries out multi-PRACH transmission on the resources configured by the network equipment, and the network equipment can determine the actual transmission times of the multi-PRACH in the random access process of the terminal based on the received multi-PRACH.

Step 302, determining a candidate value set of Msg3 repeated transmission parameters of the terminal based on the actual transmission times of the multiple PRACH of the terminal.

Specifically, the network device may determine a candidate set of Msg3 repeated transmission parameters of the terminal based on the number of actual transmissions of the multiple PRACH of the terminal.

For example, the network device configures or predefines a correspondence between the number of multi-PRACH transmissions and the candidate set of Msg3 retransmission parameters. Based on the actual transmission times of the PRACH and the corresponding relation, the network equipment determines a candidate value set of Msg3 repeated transmission times corresponding to the actual transmission times of the PRACH and a candidate value set of MCS (modulation and coding scheme) used by the Msg3 repeated transmission, so that the network equipment determines the candidate value set of Msg3 repeated transmission parameters which can be used by the terminal.

For example, the network device configures or predefines an initial candidate set of Msg3 retransmission parameters and a number of PRACH transmissions corresponding to the initial candidate set of Msg3 retransmission parameters. The network device scales the initial candidate value set of the Msg3 repeated transmission parameters based on the relation between the multiple PRACH transmission times corresponding to the initial candidate value set of the Msg3 repeated transmission parameters and the multiple PRACH actual transmission times, so that the network device determines the candidate value set of the Msg3 repeated transmission parameters which can be used by the terminal.

The network device sends the determined candidate value set of the Msg3 repeated transmission parameters which can be used by the terminal to the terminal, so that the terminal can repeatedly send the Msg3 based on the candidate value set of the Msg3 repeated transmission parameters which can be used.

The network device scales the first set based on the number of actual transmissions of the multiple PRACH, thereby determining a candidate set of Msg3 repeated transmission parameters that can be used by the terminal.

For example, the network device configures or predefines coefficients corresponding to different multiple PRACH transmission times, and the network device scales the first set based on the coefficients corresponding to the multiple PRACH actual transmission times, so as to determine a candidate value set of the Msg3 repeated transmission parameters that can be used by the terminal.

For example, the network device configures or predefines the number of multiple PRACH transmissions corresponding to the first set, and the network device scales the first set based on a relationship between the number of multiple PRACH transmissions corresponding to the first set and the number of actual multiple PRACH transmissions, so as to determine a candidate set of Msg3 repeated transmission parameters that can be used by the terminal.

According to the Msg3 repeated transmission parameter determining method, the initial candidate value set of the Msg3 repeated transmission times is determined, scaling is carried out on the initial candidate value set of the Msg3 repeated transmission times based on the multiple PRACH actual transmission times of the terminal, the candidate value sets of different Msg3 repeated transmission parameters are determined based on different PRACH actual transmission times, the access requirements of all terminals with different coverage limit degrees in a cell are met, and meanwhile partial Msg3 transmission resource waste is avoided.

Specifically, the network device may determine the scaling factor based on the number of actual transmissions of the multiple PRACHs.

For example, the network device configures or predefines scaling factors corresponding to different multiple PRACH transmission times, respectively, which may correspond to the same or different scaling factors. Based on the actual transmission times of the PRACH, the network equipment determines a scaling factor corresponding to the actual transmission times of the PRACH.

For example, the network device configures or predefines a number of multiple PRACH transmissions corresponding to the first set. The network device determines a scaling factor based on a relationship between the number of multi-PRACH transmissions corresponding to the first set and the number of actual multi-PRACH transmissions.

After determining the scaling factor, the network device scales the first set with the scaling factor to determine a candidate set of Msg3 repeat transmission parameters usable by the terminal.

For example, the network device directly uses the scaled first set as a candidate set of Msg3 repeated transmission parameters usable by the terminal.

For example, after the network device scales the first set, candidate values in the scaled first set are not non-negative integers or do not meet the actual requirement, the scaled first set needs to be quantized, and the scaled quantized first set is used as a candidate value set of Msg3 repeated transmission parameters that can be used by the terminal.

According to the Msg3 repeated transmission parameter determining method, the network equipment determines the scaling factor based on the actual transmission times of the multiple PRACH of the terminal, and scales the first set based on the scaling factor, so that the candidate value sets of different Msg3 repeated transmission parameters are determined based on different PRACH transmission times, the access requirements of all terminals with different coverage limit degrees in a cell are met, and meanwhile, partial Msg3 transmission resource waste is avoided.

Specifically, the network device determines a first multiple PRACH transmission number corresponding to the first set based on a first multiple PRACH transmission number corresponding to the configured or predetermined first set.

The network device determines a scaling factor based on a ratio of the number of actual transmissions of the plurality of PRACHs to the number of transmissions of the first plurality of PRACHs.

According to the Msg3 repeated transmission parameter determining method, the network equipment determines the scaling factor based on the ratio of the first multiple PRACH transmission times corresponding to the first set to the actual multiple PRACH transmission times, so that the method is beneficial to determining candidate value sets of different Msg3 repeated transmission parameters based on different PRACH transmission times, meets the access requirements of all terminals with different coverage limit degrees in a cell, and meanwhile avoids part of Msg3 transmission resource waste.

The network device determines the first coefficient based on the configured first coefficient or based on a predefined first coefficient.

For example, the network device determines a first number of multiple PRACH transmissions corresponding to the first set based on the configured first number of multiple PRACH transmissions corresponding to the first set; the network device determines the first coefficient based on a predefined first coefficient.

For example, the network device determines a first number of multiple PRACH transmissions and a first coefficient corresponding to the first set based on the first number of multiple PRACH transmissions and the first coefficient corresponding to the first set respectively configured.

The network device determines a ratio of actual transmission times of the plurality of PRACH to the first transmission times of the plurality of PRACH, and determines a scaling factor based on a product of the ratio and the first coefficient.

When the actual transmission times of the multiple PRACH of the terminal are determined to be 2, the ratio of the actual transmission times of the multiple PRACH to the first multiple PRACH transmission times is 2/1, the first coefficient corresponding to the actual transmission times of the multiple PRACH 2 is 1.5, and the scaling factor is 2 x 1.5, namely 3.

When the actual transmission times of the multiple PRACH of the terminal are determined to be 4, the ratio of the actual transmission times of the multiple PRACH to the first multiple PRACH transmission times is 4/1, the first coefficient corresponding to the actual transmission times of the multiple PRACH 4 is 1.5, and the scaling factor is 4 x 1.5, namely 6.

When the actual transmission times of the multiple PRACH of the terminal are 6, the ratio of the actual transmission times of the multiple PRACH to the first multiple PRACH is 6/1, the first coefficient corresponding to the actual transmission times of the multiple PRACH 6 is 1.5, and the scaling factor is 6 x 1.5, namely 9.

When the actual transmission times of the multiple PRACH of the terminal are determined to be 4, the ratio of the actual transmission times of the multiple PRACH to the first multiple PRACH transmission times is 4/1, the first coefficient corresponding to the actual transmission times of the multiple PRACH 4 is 1, and the scaling factor is 4*1, namely 4.

When the actual transmission times of the multiple PRACH of the terminal are 6, the ratio of the actual transmission times of the multiple PRACH to the first multiple PRACH is 6/1, the first coefficient corresponding to the actual transmission times of the multiple PRACH 6 is 0.5, and the scaling factor is 6 x 0.5, namely 3.

According to the Msg3 repeated transmission parameter determining method, the network equipment determines the scaling factor based on the ratio of the first multiple PRACH transmission times corresponding to the first set to the actual multiple PRACH transmission times and the first coefficient, so that the method is favorable for determining candidate value sets of different Msg3 repeated transmission parameters based on different PRACH actual transmission times, meets the access requirements of all terminals with different coverage limitation degrees in a cell, and avoids part of Msg3 transmission resource waste.

scaling the first set by using the scaling factor to obtain a second set;

Specifically, after determining the scaling factor, the network device scales the first set with the scaling factor to obtain the second set. The second set is the scaled first set.

After determining the second set, the network device may directly use the second set as a candidate set of Msg3 repeated transmission parameters, and may further quantize the second set, and use the quantized second set as a candidate set of Msg3 repeated transmission parameters that can be used by the terminal.

According to the Msg3 repeated transmission parameter determining method, the network equipment scales the first set by utilizing the scaling factor, and determines the candidate value set of the Msg3 repeated transmission parameters which can be used by the terminal based on the scaled first set, so that the access requirements of all terminals with different coverage limiting degrees in a cell are met, and meanwhile, the waste of partial Msg3 transmission resources is avoided.

Specifically, after the second set is acquired, the candidate values in the second set may have a situation that the candidate values are not non-negative integers or do not meet the actual requirement, the candidate values in the second set need to be quantized, and the quantized second set is used as a candidate value set of the Msg3 repeated transmission parameters usable by the terminal.

For example, the second set is {2,4,6,8}, quantized according to the Msg3 repetition number set {1,2,3,4,7,8,12,16} defined in Rel-17. The network device may quantize each candidate value in the second set to a minimum value of the Msg3 repetition number set defined in Rel-17 that is equal to or greater than the candidate value, and the second set {2,4,6,8} is quantized to {2,4,7,8}.

For example, the second set is {2,4,6,8}, the candidate values in the second set are quantized to a power of 2, the network device may quantize each candidate value in the second set to a power of less than or equal to the largest 2 of the candidate values, and the second set {2,4,6,8} is quantized to {2,4,4,8}.

According to the Msg3 repeated transmission parameter determining method, the network equipment quantizes the second set, and the quantized second set is used as the candidate value set of the Msg3 repeated transmission parameters which can be used by the terminal, so that the access requirements of all terminals with different coverage limit degrees in a cell can be met, and meanwhile, the waste of partial Msg3 transmission resources is avoided.

Specifically, the network device quantizes the candidate values in the second set to a power of 2 number greater than or equal to 1. The network device may quantize each candidate value in the second set to a power of 2 or less of the largest of the candidate values.

The network device may also quantize each candidate value in the second set to a power of 2 or more of the smallest of the candidate values.

The network device quantizes the candidate values in the second set into candidate values in the fixed set of candidate values. The fixed candidate set may be predefined.

The network device may quantize each candidate in the second set to a maximum value less than or equal to the candidate in the fixed set of candidates.

The network device may also quantize each candidate value in the second set to a minimum value of the fixed set of candidate values that is greater than or equal to the candidate value. If the candidate is greater than the maximum value in the fixed set, the candidate is quantized to the maximum value in the fixed set.

According to the Msg3 repeated transmission parameter determining method, the network equipment quantizes the second set based on the power of 2 or the fixed candidate value set, and the quantized second set is used as the candidate value set of the Msg3 repeated transmission parameters which can be used by the terminal, so that the access requirements of all terminals with different coverage limit degrees in a cell can be met, and meanwhile, the waste of partial Msg3 transmission resources is avoided.

Specifically, the network device determines a correspondence between the three candidate value sets of the multiple PRACH transmission times, the candidate value set of the Msg3 retransmission times, and the MCS used by the Msg3 retransmission based on the correspondence between the three candidate value sets of the configured or predefined multiple PRACH transmission times, the candidate value set of the Msg3 retransmission times, and the candidate value set of the MCS used by the Msg3 retransmission times.

For example, one multiple PRACH transmission number corresponds to one candidate set of Msg3 retransmission number and one candidate set of MCS used for Msg3 retransmission.

For example, the multiple PRACH transmissions correspond to one candidate set of Msg3 retransmission times and one candidate set of MCSs used for Msg3 retransmission.

Based on the actual transmission times and the corresponding relation of the multiple PRACH of the terminal, the network equipment determines a candidate value set of Msg3 repeated transmission times corresponding to the actual transmission times of the multiple PRACH and a candidate value set of MCS used by the repeated transmission of the Msg3, and determines a candidate value set of Msg3 repeated transmission parameters which can be used by the terminal from the candidate value set of Msg3 repeated transmission times corresponding to the actual transmission times of the multiple PRACH and the candidate value set of MCS used by the repeated transmission of the Msg 3.

For example, the number of actual transmission times of the multiple PRACH is 1, the candidate set of the number of Msg3 retransmission times corresponding to the number of actual transmission times of the multiple PRACH 1 is {1,2,3,4}, and the candidate set of the MCS used for the corresponding Msg3 retransmission is {2,3,5,6,7,9,10,14}, then the candidate set of the number of Msg3 retransmission times in the Msg3 retransmission parameters usable by the terminal is {1,2,3,4}, and the candidate set of the MCS used for the Msg3 retransmission in the Msg3 retransmission parameters is {2,3,5,6,7,9,10,14}.

According to the Msg3 repeated transmission parameter determining method, the network equipment determines the candidate value set of the Msg3 repeated transmission parameters which can be used by the terminal based on the actual transmission times and the corresponding relation of the multiple PRACH by determining the corresponding relation among the multiple PRACH transmission times, the candidate value set of the Msg3 repeated transmission times and the candidate value set of the MCS used by the Msg3 repeated transmission, so that the candidate value sets of different Msg3 repeated transmission parameters are determined based on different PRACH transmission times, the access requirements of all terminals with different coverage limit degrees in a cell are met, and meanwhile, the waste of partial Msg3 transmission resources is avoided.

Fig. 4 is a schematic structural diagram of a terminal provided in an embodiment of the present application, as shown in fig. 4, where the terminal includes a memory 420, a transceiver 400, and a processor 410, where:

a memory 420 for storing a computer program; a transceiver 400 for transceiving data under the control of the processor 410; a processor 410 for reading the computer program in the memory 420 and performing the following operations:

Wherein in fig. 4, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 410 and various circuits of memory represented by memory 420, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. Transceiver 400 may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over transmission media, including transmission media including wireless channels, wired channels, optical cables, and the like. The user interface 430 may also be an interface capable of interfacing with an inscribed desired device for a different user device, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 410 is responsible for managing the bus architecture and general processing, and the memory 420 may store data used by the processor 410 in performing operations.

Alternatively, the processor 410 may be a CPU (Central processing Unit), ASIC (Application Specific Integrated Circuit ), FPGA (Field-Programmable Gate Array, field programmable Gate array) or CPLD (Complex Programmable Logic Device ), and the processor may also employ a multicore architecture.

The processor is configured to execute any of the methods provided in the embodiments of the present application by invoking a computer program stored in a memory in accordance with the obtained executable instructions. The processor and the memory may also be physically separate.

scaling the first set by using the scaling factor to obtain a second set;

It should be noted that, the terminal provided by the embodiment of the present invention can implement all the method steps implemented by the method embodiment in which the execution body is a terminal, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those of the method embodiment in the embodiment are omitted herein.

Fig. 5 is a schematic structural diagram of a network device according to an embodiment of the present application, as shown in fig. 5, where the network device includes a memory 520, a transceiver 500, and a processor 510, where:

a memory 520 for storing a computer program; a transceiver 500 for transceiving data under the control of the processor 510; a processor 510 for reading the computer program in the memory 520 and performing the following operations:

determining the actual transmission times of multiple PRACH of a terminal;

Specifically, the transceiver 500 is used to receive and transmit data under the control of the processor 510.

Where in FIG. 5, a bus architecture may comprise any number of interconnected buses and bridges, with various circuits of the one or more processors, as represented by processor 510, and the memory, as represented by memory 520, being linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. Transceiver 500 may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium, including wireless channels, wired channels, optical cables, etc. The processor 510 is responsible for managing the bus architecture and general processing, and the memory 520 may store data used by the processor 510 in performing operations.

The processor 510 may be a Central Processing Unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a Field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device, CPLD), or it may employ a multi-core architecture.

scaling the first set by using the scaling factor to obtain a second set;

It should be noted that, the network device provided in this embodiment of the present invention can implement all the method steps implemented by the method embodiment in which the execution body is a network device, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those of the method embodiment in this embodiment are omitted.

Fig. 6 is one of schematic structural diagrams of an Msg3 retransmission parameter determining apparatus provided in the embodiment of the present application, and as shown in fig. 6, the embodiment of the present application further provides an Msg3 retransmission parameter determining apparatus, including a first determining module 601;

a first determining module 601 is configured to determine a candidate set of Msg3 repeated transmission parameters based on the number of actual PRACH transmissions.

In some embodiments, the first determining module 601 includes: a first determination sub-module and a second determination sub-module, wherein:

In some embodiments, the first determining module 601 includes: a third determination sub-module and a fourth determination sub-module; wherein:

It should be noted that, the Msg3 repeated transmission parameter determining apparatus provided in this embodiment of the present application can implement all the method steps implemented by the method embodiment in which the execution body is a terminal, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those of the method embodiment in this embodiment are omitted.

Fig. 7 is a second schematic structural diagram of an Msg3 retransmission parameter determining apparatus according to an embodiment of the present application, as shown in fig. 7, and further provides an Msg3 retransmission parameter determining apparatus, including: a second determination module 701 and a third determination module 702; wherein:

a second determining module 701, configured to determine the actual number of times of transmission of the multiple PRACH of the terminal;

a third determining module 702 is configured to determine a candidate value set of Msg3 repeated transmission parameters of the terminal based on the number of actual PRACH transmissions of the terminal.

In some embodiments, the third determination module 702 includes: a fifth determination sub-module and a sixth determination sub-module; wherein:

In some embodiments, the third determination module 702 includes: a seventh determination sub-module and an eighth determination sub-module; wherein:

It should be noted that, the Msg3 repeated transmission parameter determining apparatus provided in this embodiment of the present application can implement all the method steps implemented by the method embodiment in which the execution body is a network device, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those of the method embodiment in this embodiment are omitted.

It should be noted that, in the embodiment of the present application, the division of the units/modules is schematic, which is merely a logic function division, and other division manners may be implemented in actual practice. In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a processor-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution, in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

In some embodiments, there is also provided a processor-readable storage medium storing a computer program for causing the processor to perform the method provided in the above embodiments, including:

and determining a candidate value set of Msg3 repeated transmission parameters based on the actual transmission times of the plurality of PRACH. Alternatively, it includes:

determining the actual transmission times of multiple PRACH of a terminal;

It should be noted that: the processor-readable storage medium may be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic storage (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical storage (e.g., CD, DVD, BD, HVD, etc.), semiconductor storage (e.g., ROM, EPROM, EEPROM, nonvolatile storage (NAND FLASH), solid State Disk (SSD)), and the like.

In addition, it should be noted that: the terms "first," "second," and the like in the embodiments of the present application are used for distinguishing between similar objects and not for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the terms "first" and "second" are generally intended to be used in a generic sense and not to limit the number of objects, for example, the first object may be one or more.

In the embodiment of the application, the term "and/or" describes the association relationship of the association objects, which means that three relationships may exist, for example, a and/or B may be represented: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

The term "plurality" in the embodiments of the present application means two or more, and other adjectives are similar thereto.

The term "determining B based on a" in the present application means that a is a factor to be considered in determining B. Not limited to "B can be determined based on A alone", it should also include: "B based on A and C", "B based on A, C and E", "C based on A, further B based on C", etc. Additionally, a may be included as a condition for determining B, for example, "when a satisfies a first condition, B is determined using a first method"; for another example, "when a satisfies the second condition, B" is determined, etc.; for another example, "when a satisfies the third condition, B" is determined based on the first parameter, and the like. Of course, a may be a condition in which a is a factor for determining B, for example, "when a satisfies the first condition, C is determined using the first method, and B is further determined based on C", or the like.

The technical scheme provided by the embodiment of the application can be suitable for various systems, in particular to a 5G system. For example, suitable systems may be global system for mobile communications (global system of mobile communication, GSM), code division multiple access (code division multiple access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) universal packet Radio service (general packet Radio service, GPRS), long term evolution (long term evolution, LTE), LTE frequency division duplex (frequency division duplex, FDD), LTE time division duplex (time division duplex, TDD), long term evolution-advanced (long term evolution advanced, LTE-a), universal mobile system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX), 5G New air interface (New Radio, NR), and the like. Terminal devices and network devices are included in these various systems. Core network parts such as evolved packet system (Evloved Packet System, EPS), 5G system (5 GS) etc. may also be included in the system.

The terminal device according to the embodiments of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing device connected to a wireless modem, etc. The names of the terminal devices may also be different in different systems, for example in a 5G system, the terminal devices may be referred to as User Equipment (UE). The wireless terminal device may communicate with one or more Core Networks (CNs) via a radio access Network (Radio Access Network, RAN), which may be mobile terminal devices such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, e.g., portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile devices that exchange voice and/or data with the radio access Network. Such as personal communication services (Personal Communication Service, PCS) phones, cordless phones, session initiation protocol (Session Initiated Protocol, SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital assistants (Personal Digital Assistant, PDAs), and the like. The wireless terminal device may also be referred to as a system, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile), remote station (remote station), access point (access point), remote terminal device (remote terminal), access terminal device (access terminal), user terminal device (user terminal), user agent (user agent), user equipment (user device), and the embodiments of the present application are not limited.

The network device according to the embodiment of the present application may be a base station, where the base station may include a plurality of cells for providing services for a terminal. A base station may also be called an access point or may be a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or other names, depending on the particular application. The network device may be operable to exchange received air frames with internet protocol (Internet Protocol, IP) packets as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in a global system for mobile communications (Global System for Mobile communications, GSM) or code division multiple access (Code Division Multiple Access, CDMA), a network device (NodeB) in a wideband code division multiple access (Wide-band Code Division Multiple Access, WCDMA), an evolved network device (evolutional Node B, eNB or e-NodeB) in a long term evolution (long term evolution, LTE) system, a 5G base station (gNB) in a 5G network architecture (next generation system), a home evolved base station (Home evolved Node B, heNB), a relay node (relay node), a home base station (femto), a pico base station (pico), and the like. In some network structures, the network device may include a Centralized Unit (CU) node and a Distributed Unit (DU) node, which may also be geographically separated.

Multiple-input Multiple-output (Multi Input Multi Output, MIMO) transmissions may each be made between a network device and a terminal device using one or more antennas, and the MIMO transmissions may be Single User MIMO (SU-MIMO) or Multiple User MIMO (MU-MIMO). The MIMO transmission may be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or may be diversity transmission, precoding transmission, beamforming transmission, or the like, depending on the form and number of the root antenna combinations.

It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions may 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 means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.

Claims

1. The Msg3 repeated transmission parameter determining method is characterized by being applied to a terminal and comprising the following steps:

2. The Msg3 retransmission parameter determination method according to claim 1, wherein the determining the candidate value set of the Msg3 retransmission parameter based on the number of PRACH actual transmissions comprises:

3. The Msg3 retransmission parameter determination method according to claim 2, wherein determining the candidate set of Msg3 retransmission parameters based on the number of actual PRACH transmissions and the first set comprises:

4. The Msg3 repeated transmission parameter determination method as claimed in claim 3, wherein the determining a scaling factor based on the number of actual PRACH transmissions comprises:

5. The Msg3 repeated transmission parameter determination method as claimed in claim 3, wherein the determining a scaling factor based on the number of actual PRACH transmissions comprises:

6. The Msg3 retransmission parameter determination method according to claim 3, wherein the determining the candidate value set of the Msg3 retransmission parameter based on the first set and the scaling factor comprises:

scaling the first set by using the scaling factor to obtain a second set;

7. The Msg3 retransmission parameter determination method according to claim 6, wherein the determining the candidate value set of the Msg3 retransmission parameter based on the second set comprises:

8. The method of determining Msg3 retransmission parameters according to claim 7, wherein the quantizing the candidate values in the second set, determining the candidate value set of Msg3 retransmission parameters, comprises:

9. The Msg3 retransmission parameter determination method according to claim 1, wherein determining the candidate value set of Msg3 retransmission parameters based on the number of actual PRACH transmissions comprises:

10. A method for determining Msg3 retransmission parameters, applied to a network device, comprising:

Determining the actual transmission times of multiple PRACH of a terminal;

11. The Msg3 retransmission parameter determination method according to claim 10, wherein the determining the candidate set of Msg3 retransmission parameters for the terminal based on the number of actual PRACH transmissions for the terminal comprises:

12. The method of determining Msg3 retransmission parameters according to claim 11, wherein the determining the candidate set of Msg3 retransmission parameters for the terminal based on the number of actual PRACH transmissions for the terminal and the first set comprises:

13. The Msg3 retransmission parameter determination method according to claim 12, wherein the determining a scaling factor based on the number of actual PRACH transmissions by the terminal comprises:

14. The Msg3 retransmission parameter determination method according to claim 12, wherein the determining a scaling factor based on the number of actual PRACH transmissions by the terminal comprises:

15. The Msg3 retransmission parameter determination method according to claim 12, wherein the determining a candidate set of Msg3 retransmission parameters for the terminal based on the first set and the scaling factor comprises:

scaling the first set by using the scaling factor to obtain a second set;

16. The Msg3 retransmission parameter determination method according to claim 15, wherein the determining the candidate value set of the Msg3 retransmission parameter of the terminal based on the second set comprises:

17. The method of determining Msg3 retransmission parameters according to claim 16, wherein the quantizing the candidate values in the second set, determining the candidate value set of Msg3 retransmission parameters of the terminal, comprises:

18. The Msg3 retransmission parameter determination method according to claim 10, wherein the determining the candidate set of Msg3 retransmission parameters for the terminal based on the number of actual PRACH transmissions for the terminal comprises:

19. A terminal comprising a memory, a transceiver, and a processor:

a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:

20. The terminal of claim 19, wherein the determining the candidate set of Msg3 retransmission parameters based on the number of actual PRACH transmissions comprises:

21. The terminal of claim 20, wherein determining the candidate set of Msg3 retransmission parameters based on the number of actual PRACH transmissions and the first set comprises:

22. The terminal of claim 21, wherein the determining the scaling factor based on the number of actual PRACH transmissions comprises:

23. The terminal of claim 21, wherein the determining the scaling factor based on the number of actual PRACH transmissions comprises:

24. The terminal of claim 21, wherein the determining the candidate set of Msg3 retransmission parameters based on the first set and the scaling factor comprises:

scaling the first set by using the scaling factor to obtain a second set;

25. The terminal of claim 24, wherein the determining the candidate set of Msg3 retransmission parameters based on the second set comprises:

26. The terminal of claim 25, wherein the quantizing the candidate values in the second set to determine the candidate value set for the Msg3 repeat request parameter comprises:

27. The terminal of claim 19, wherein determining the candidate set of Msg3 retransmission parameters based on the number of actual PRACH transmissions comprises:

28. A network device comprising a memory, a transceiver, and a processor:

determining the actual transmission times of multiple PRACH of a terminal;

29. The network device of claim 28, wherein the determining the candidate set of Msg3 retransmission parameters for the terminal based on the number of actual PRACH transmissions for the terminal comprises:

30. The network device of claim 29, wherein the determining the candidate set of Msg3 retransmission parameters for the terminal based on the number of multiple PRACH actual transmissions for the terminal and the first set comprises:

31. The network device of claim 30, wherein the determining a scaling factor based on the number of actual PRACH transmissions by the terminal comprises:

32. The network device of claim 30, wherein the determining a scaling factor based on the number of actual PRACH transmissions by the terminal comprises:

33. The network device of claim 30, wherein the determining the candidate set of Msg3 retransmission parameters for the terminal based on the first set and the scaling factor comprises:

Scaling the first set by using the scaling factor to obtain a second set;

34. The network device of claim 33, wherein the determining the candidate set of Msg3 retransmission parameters for the terminal based on the second set comprises: and quantizing the candidate values in the second set, and determining a candidate value set of Msg3 repeated transmission parameters of the terminal.

35. The network device of claim 34, wherein the quantizing the candidate values in the second set to determine the candidate value set for the Msg3 retransmission parameter for the terminal comprises:

36. The network device of claim 28, wherein the determining the candidate set of Msg3 retransmission parameters for the terminal based on the number of actual PRACH transmissions for the terminal comprises:

37. An Msg3 retransmission parameter determining apparatus, comprising:

38. An Msg3 retransmission parameter determining apparatus, comprising:

39. A processor-readable storage medium, characterized in that the processor-readable storage medium stores a computer program for causing the processor to perform the method of any one of claims 1 to 9 or to perform the method of any one of claims 10 to 18.