CN115119327A

CN115119327A - Information transmission method, device and storage medium

Info

Publication number: CN115119327A
Application number: CN202110296885.4A
Authority: CN
Inventors: 王磊; 邢艳萍
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2021-03-19
Filing date: 2021-03-19
Publication date: 2022-09-27
Also published as: WO2022193832A1

Abstract

The embodiment of the application provides an information transmission method, an information transmission device and a storage medium, wherein the method comprises the following steps: the terminal determines a target RO for sending the random access lead code according to the type of the terminal and the incidence relation between the random access channel opportunity RO and the terminal type; the terminal transmits a random access preamble on the target RO. According to the information transmission method, the device and the storage medium, different types of terminals are distinguished by using different ROs, the terminals of different types send the random access lead codes in different ROs, and the network side determines the type of the terminal according to the RO used by the terminal to send the random access lead codes, so that fragmentation of resources is avoided, and the utilization rate of the resources is improved.

Description

Information transmission method, device and storage medium

Technical Field

The present application relates to the field of communications technologies, and in particular, to an information transmission method and apparatus, an electronic device, and a storage medium.

Background

In a mobile communication system, with the evolution of technology and the demand of application scenarios, different types of terminals/User Equipments (UEs) are defined in succession, for example, Coverage Enhancement (CE) UEs, Reduced capability (reduce capability) UEs, small data (small data) UEs, and the like. Considering that the application scenarios of these UEs and the adopted technologies are different, the identification of the UE type will be an important issue.

The existing technical solution completes identification of different UE types in an initial Access process, for example, configures (configuration) through an independent Random Access Channel (RACH), or distinguishes different types of UEs through different Preamble indexes (Preamble indexes).

However, as the number of UE types to be distinguished increases, configuring the independent RACH configuration greatly reduces the transmission efficiency of the system, and affects the performance of the system.

Disclosure of Invention

The embodiment of the application provides an information transmission method, an information transmission device and a storage medium, which are used for solving the technical problem that the transmission efficiency of a system in the prior art is low.

In a first aspect, an embodiment of the present application provides an information transmission method, including:

the terminal determines a target RO for sending the random access lead code according to the type of the terminal and the incidence relation between the random access channel opportunity RO and the terminal type;

the terminal transmits a random access preamble on the target RO.

Optionally, according to an information transmission method of an embodiment of the present application, before determining the target RO for sending the random access preamble, the method further includes:

receiving a Random Access Channel (RACH) configuration message sent by a base station; the RACH configuration message includes the association relationship.

Optionally, according to an information transmission method of an embodiment of the present application, the RACH configuration message is a first-type system information block SIB 1.

Optionally, according to the information transmission method of an embodiment of the present application, the association relationship is preconfigured by a protocol.

receiving first identification information sent by a base station; the first identification information is used to instruct the terminals to distinguish the types of different terminals through a synchronization signal block to random access channel occasion SSB2RO mapping period or SSB2RO association period.

Optionally, according to an information transmission method of an embodiment of the present application, the first identification information is carried by a 1-bit reserved bit in the main system information block MIB.

Optionally, according to the information transmission method in an embodiment of the present application, a value of the 1-bit reserved bit in the MIB being 0 indicates that the terminal is not allowed to distinguish different terminal types through the SSB2RO mapping period or the SSB2RO association period;

a value of 1-bit reserved bit in the MIB of 1 indicates that the terminal is allowed to distinguish between different terminal types by SSB2RO mapping period or SSB2RO associated period.

receiving second identification information sent by the base station; the second identification information is used to indicate a type set of terminals distinguished by the SSB2RO mapping period or SSB2RO associated period.

Optionally, according to the information transmission method in an embodiment of the present application, the second identification information is carried by a reserved 2-bit in a physical broadcast channel PBCH.

Optionally, according to the information transmission method in an embodiment of the present application, a value of 00 in the 2-bit reserved bit in the PBCH indicates that the terminal is not allowed to distinguish different types of terminals through an SSB2RO mapping period or an SSB2RO association period;

a value of 01 for the 2-bit reserved bit in the PBCH characterizes a first set of types of terminals allowing the terminals to be distinguished by an SSB2RO mapping period or an SSB2RO associated time period;

a value of 10 for the 2-bit reserved bit in the PBCH characterizes a set of types of terminals allowing the terminals to be distinguished by the SSB2RO mapping period or the SSB2RO associated time period as a second set;

a value of 11 for the 2-bit reserved bit in the PBCH characterizes that the set of types of terminals allowing the terminals to be distinguished by the SSB2RO mapping period or the SSB2RO associated period is a third set.

Optionally, according to the information transmission method of an embodiment of the present application, the target ROs are ROs included in N target SSB2RO mapping periods within the associated time period of C target SSB2 RO; c and N are both positive integers.

Optionally, according to an information transmission method of an embodiment of the present application, the association relationship is: the type number of the terminal corresponds to the number of the SSB2RO mapping period or SSB2RO associated period to which the RO that the terminal is allowed to use belongs, and the SSB2RO mapping period or SSB2RO associated period corresponding to different type numbers are different in number.

Optionally, according to an information transmission method of an embodiment of the present application, the association relationship is expressed by a formula as follows:

m＝mod(n _cycle ,M)+n

wherein m is the type number of the terminal; m is the number of the types of the terminals needing to be distinguished; n is _cycle The number of cycles or SSB2RO associated periods is mapped for SSB2RO to which ROs of the mth class of terminal are allowed to use, and n is a natural number.

In a second aspect, an embodiment of the present application provides an information transmission method, including:

a base station receives a random access lead code sent by a target terminal on a target RO;

and the base station determines the type of the target terminal according to the mapping period from the synchronous signal block to the random access channel opportunity SSB2RO to which the target RO belongs or the number of the SSB2RO associated time period and the association relationship between the random access channel opportunity RO and the type of the terminal.

Optionally, according to an information transmission method in an embodiment of the present application, before the base station receives the random access preamble sent by the target terminal on the target RO, the method further includes:

sending a Random Access Channel (RACH) configuration message to the target terminal; the RACH configuration message includes the association relationship.

sending first identification information to the target terminal; the first identification information is used to instruct the terminals to distinguish the types of different terminals through a synchronization signal block to random access channel occasion SSB2RO mapping period or SSB2RO associated period.

sending second identification information to the target terminal; the second identification information is used to indicate a type set of terminals distinguished by the SSB2RO mapping period or SSB2RO associated period.

Optionally, according to the information transmission method in an embodiment of the present application, a value of 00 of the reserved 2-bit in the PBCH indicates that the terminal is not allowed to distinguish different types of terminals through the SSB2RO mapping period or the SSB2RO associated time period;

the value of the reserved 2-bit in the PBCH being 01 characterizes that the type set of the terminals which are allowed to be distinguished by the SSB2RO mapping period or the SSB2RO associated time period is a first set;

Optionally, according to the information transmission method of an embodiment of the present application, the target ROs are ROs included in N target SSB2RO mapping periods within the associated time period of C target SSB2 RO; c and N are positive integers.

Optionally, according to an information transmission method of an embodiment of the present application, the association relationship is: the type number of the terminal corresponds to the number of the SSB2RO mapping period or the SSB2RO associated period to which the RO the terminal is allowed to use, and the SSB2RO mapping period or the SSB2RO associated period corresponding to different type numbers are different in number.

Optionally, according to the information transmission method of an embodiment of the present application, the association relationship is expressed by a formula as follows:

m＝mod(n _cycle ,M)+n

In a third aspect, an embodiment of the present application provides 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 performing the following operations:

determining a target RO for sending the random access lead code according to the type of the target RO and the incidence relation between the random access channel opportunity RO and the terminal type;

transmitting a random access preamble on the target RO.

Optionally, according to an embodiment of the present application, before determining the target RO for sending the random access preamble, the method further includes:

Optionally, in an embodiment of the terminal according to the present application, the RACH configuration message is a first type system information block SIB 1.

Optionally, according to the terminal in an embodiment of the present application, the association relationship is preconfigured by a protocol.

Optionally, in an embodiment of the terminal according to the application, the first identification information is carried by a reserved bit of 1 bit in the main system information block MIB.

Optionally, according to the terminal in an embodiment of the present application, a value of 0 in the 1-bit reserved bit in the MIB indicates that the terminal is not allowed to distinguish different terminal types through the SSB2RO mapping period or the SSB2RO association period;

Optionally, according to the terminal in an embodiment of the present application, the second identification information is carried by a reserved bit of 2 bits in a physical broadcast channel PBCH.

Optionally, according to the terminal in an embodiment of the present application, a value of 00 in the reserved 2-bit in PBCH indicates that the terminal is not allowed to distinguish different terminal types by SSB2RO mapping period or SSB2RO association period;

the value of the reserved 2-bit in the PBCH of 10 characterizes that the set of types of terminals allowing the terminals to be distinguished by the SSB2RO mapping period or the SSB2RO associated time period is a second set;

Optionally, according to the terminal in one embodiment of the present application, the target ROs are ROs included in N target SSB2RO mapping periods within the associated time period of C target SSB2 RO; c and N are positive integers.

Optionally, according to the terminal of an embodiment of the present application, the association relationship is: the type number of the terminal corresponds to the number of the SSB2RO mapping period or SSB2RO associated period to which the RO that the terminal is allowed to use belongs, and the SSB2RO mapping period or SSB2RO associated period corresponding to different type numbers are different in number.

Optionally, according to the terminal in an embodiment of the present application, the association relationship is formulated as follows:

m＝mod(n _cycle ,M)+n

In a fourth aspect, an embodiment of the present application provides a base station, including a memory, a transceiver, and a processor;

receiving a random access lead code sent by a target terminal on a target RO;

and determining the type of the target terminal according to the mapping period from the synchronization signal block to the random access channel occasion SSB2RO to which the target RO belongs or the number of the SSB2RO association period and the association relationship between the random access channel occasion RO and the terminal type.

Optionally, according to the base station in an embodiment of the present application, before the base station receives the random access preamble sent by the target terminal on the target RO, the base station further includes:

Optionally, according to the base station of an embodiment of the present application, the RACH configuration message is a first type system information block SIB 1.

Optionally, according to the base station of an embodiment of the present application, the association relationship is preconfigured by a protocol.

Optionally, according to the base station in an embodiment of the present application, before the base station receives that the target terminal sends the random access preamble on the target RO, the base station further includes:

sending first identification information to the target terminal; the first identification information is used to instruct the terminals to distinguish the types of different terminals through a synchronization signal block to random access channel occasion SSB2RO mapping period or SSB2RO association period.

Optionally, according to the base station in an embodiment of the present application, the first identifier information is carried by a reserved bit of 1 bit in a primary system information block MIB.

Optionally, according to the base station in an embodiment of the present application, a value of a 1-bit reserved bit in the MIB is 0, which indicates that the terminal is not allowed to distinguish different terminal types through the SSB2RO mapping period or the SSB2RO associated time period;

the value of the 1-bit reserved bit in the MIB of 1 indicates that the terminal is allowed to distinguish the types of different terminals through the SSB2RO mapping period or the SSB2RO associated period.

Optionally, according to the base station of an embodiment of the present application, the second identification information is carried by a reserved bit of 2 bits in a physical broadcast channel PBCH.

Optionally, according to the base station in an embodiment of the present application, a value of 00 of the reserved 2-bit in the PBCH indicates that the terminal is not allowed to distinguish different terminal types through the SSB2RO mapping period or the SSB2RO associated time period;

Optionally, according to the base station in an embodiment of the present application, the target ROs are ROs included in N target SSB2RO mapping periods within C target SSB2RO association periods; c and N are positive integers.

Optionally, according to the base station of an embodiment of the present application, the association relationship is: the type number of the terminal corresponds to the number of the SSB2RO mapping period or the SSB2RO associated period to which the RO the terminal is allowed to use, and the SSB2RO mapping period or the SSB2RO associated period corresponding to different type numbers are different in number.

Optionally, according to the base station in an embodiment of the present application, the association relationship is formulated as follows:

m＝mod(n _cycle ,M)+n

wherein m is the type number of the terminal; m isThe number of types of terminals to be distinguished; n is _cycle The number of cycles or SSB2RO associated periods is mapped for SSB2RO to which ROs of the mth class of terminal are allowed to use, and n is a natural number.

In a fifth aspect, an embodiment of the present application provides an information transmission apparatus, including:

a first determining module, configured to determine a target RO for sending a random access preamble according to a type of the first determining module and an association relationship between a random access channel opportunity RO and a terminal type;

a first sending module, configured to send a random access preamble on the target RO.

In a sixth aspect, an embodiment of the present application provides an information transmission apparatus, including:

a first receiving module, configured to receive a random access preamble sent by a target terminal on a target RO;

a second determining module, configured to determine the type of the target terminal according to the number of the mapping period from the synchronization signal block to the random access channel opportunity SSB2RO to which the target RO belongs or the SSB2RO association period, and the association relationship between the random access channel opportunity RO and the terminal type.

In a seventh aspect, an embodiment of the present application further provides a processor-readable storage medium, where the processor-readable storage medium stores a computer program, where the computer program is configured to enable the processor to execute the steps of the information transmission method according to the first aspect or the second aspect.

According to the information transmission method, the device and the storage medium, different types of terminals are distinguished by using different ROs, the terminals of different types send the random access lead codes in different ROs, and the network side determines the type of the terminal according to the RO used by the terminal to send the random access lead codes, so that fragmentation of resources is avoided, and the utilization rate of the resources is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic flowchart of an information transmission method according to an embodiment of the present application;

fig. 2 is a schematic diagram of ROs available for random access message transmission and unavailable for random access message transmission in an associated time period according to an embodiment of the present application;

fig. 3 is a second schematic flowchart of an information transmission method according to an embodiment of the present application;

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

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

fig. 6 is a schematic structural diagram of an information transmission apparatus according to an embodiment of the present application;

fig. 7 is a second schematic structural diagram of an information transmission apparatus according to an embodiment of the present application.

Detailed Description

In a fifth Generation New radio access technology (5th Generation New RAT,5G NR) mobile communication system, different types of terminals are defined in succession as the technology evolves and application scenarios demand. For example, CE terminals (Terminal, also called User Equipment (UE)), rdcap terminals, small data terminals, etc. are defined in The 3rd Generation Partnership Project (3 GPP) Rel-17 protocol. Considering the application scenarios faced by the aforementioned terminals and the different technologies adopted, the identification of the terminal type will be an important issue.

In the discussion of Rel-17, which already refers to identification techniques for terminal types, the typical approach is to perform the identification of different terminal types during the initial access procedure.

For example, in the current 5G NR system, there are four-step Random Access (4-step RA) and two-step Random Access (2-step RA). The terminal with the 2-step RA capability selects to adopt the 4-step RA or the 2-step RA to initiate a random access procedure (random access procedure) according to the current channel condition. The terminal and the base station distinguish the 4-step RA and the 2-step RA in two ways at this time.

1. And sending a Preamble (Preamble) code by independent RACH configuration, namely that the 4-step RA and the 2-step RA occupy different time-frequency resources.

2. Different types of terminals are distinguished through different Preamble indexes, namely 4-step RA and 2-step RA send different Preamble indexes on the same time frequency resource.

RACH resources are periodic resources, are cell-level configurations, and once configured, exist throughout the system. But not every RACH resource has a Random Access (RA) message transmitted. Because the network side does not know the actual occupation situation of the RACH resources, all uplink resources cannot be used for uplink data transmission in order to avoid interference to the RACH channel, thereby causing resource waste and reducing spectrum efficiency.

In addition, since the transmission performance of the RACH needs to be guaranteed, the base station needs to avoid the RACH resources when scheduling uplink transmission, and when there are too many RACH resources in the system, fragmentation of uplink transmission resources of the terminal will be caused, so that scheduling is excessively complicated.

In the embodiment of the present application, to the above technical problem, different types of terminals are distinguished by using different random access channel occasions (RACH occasion, RO), the different types of terminals perform random access preamble transmission in different ROs, and a network side determines the type of the terminal according to the RO used by the terminal to transmit the random access preamble.

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Fig. 1 is a schematic flow chart of an information transmission method according to an embodiment of the present disclosure, and as shown in fig. 1, an execution subject of the information transmission method according to the embodiment of the present disclosure may be a terminal. The method comprises the following steps:

step 101, the terminal determines a target RO for sending the random access preamble according to the type of the terminal and the association relationship between the random access channel opportunity RO and the terminal type.

Specifically, in the embodiment of the present application, different types of terminals are distinguished by using different ROs, the terminals of different types transmit random access preambles within different ROs, and a network side determines the type of the terminal according to the RO used by the terminal to transmit the random access preamble.

First, the terminal needs to determine the association relationship of the RO with the terminal type.

In one aspect, the association relationship between the RO and the terminal type may be pre-configured by a protocol.

On the other hand, the association relationship between the RO and the terminal type may be configured by the network side.

The association relationship of the RO with the terminal type may be a correspondence relationship between the type number of the terminal and the number of the SSB2RO mapping period or SSB2RO association period to which the RO allowed to be used by the terminal belongs. Or may be a correspondence between a bitmap (bitmap) of the terminal and the SSB2RO mapping period to which the RO allowed to be used by the terminal belongs or the number of SSB2RO associated periods, or the like.

For example, the association relationship between the RO and the terminal type is as follows:

the number of the RO permitted to be used by the class 1 terminal is 1, the number of the RO permitted to be used by the class 2 terminal is 2, …, and the number of the RO permitted to be used by the class n terminal is n.

For another example, the association relationship between the RO and the terminal type is as follows:

the number of a mapping cycle (mapping cycle) from a synchronization signal block to a random access channel (SSB 2RO/SSB-to-RO) to which the RO permitted to be used by the terminal of the type 1 belongs is 1, the number of an SSB2RO mapping cycle to which the RO permitted to be used by the terminal of the type 2 belongs is 2, …, and the number of an SSB2RO mapping cycle to which the RO permitted to be used by the terminal of the type n belongs is n.

the number of SSB2RO association period (association period) to which the RO permitted to be used by the terminal of type number 1 belongs is 1, the number of SSB2RO association period to which the RO permitted to be used by the terminal of type number 2 belongs is 2, …, and the number of SSB2RO association period to which the RO permitted to be used by the terminal of type number n belongs is n.

For another example, the association relationship between the RO and the terminal type is formulated as follows:

m＝mod(n _cycle ,M)+n

wherein m is a type number/an identification code of the terminal; m is the number of the types of the terminals needing to be distinguished; n is a radical of an alkyl radical _cycle The number/identification code of the cycle or SSB2RO associated period is mapped to the SSB2RO to which the RO permitted to be used by the m-th class of terminal belongs, and n is a natural number.

It should be noted that: the above examples of the association relationship between the RO and the terminal type are not exhaustive, and other similar association relationships are also feasible, and are not described in detail.

After the terminal determines the association relationship between the RO and the terminal type, if random access is required, a target RO for sending the random access preamble is determined according to the type of the terminal and the association relationship between the RO and the terminal type.

For example, the association relationship between the RO and the terminal type is: n1 SSB-to-RO mapping cycles in the C association period are used for the random access of the CE UE; n2 SSB-to-RO mapping cycles are used for random access of a RedCap UE; n3 SSB-to-RO mapping cycles are used for random access of small data, and so on. Different types of terminals send Preamble codes on the ROs included in the corresponding SSB-to-RO mapping cycle.

Wherein, N1 SSB-to-RO mapping cycles, N2 SSB-to-RO mapping cycles, and N3 SSB-to-RO mapping cycles are not overlapped with each other. N1+ N2+ N3+ … + Nn, C, N1, N2, N3 … Nn are integers equal to or greater than 1.

When carrying out random access, the CE UE sends a Preamble code on the RO contained in the N1 SSB-to-RO mapping cycles. When the RedCap UE carries out random access, the Preamble code is sent on the RO contained in the N2 SSB-to-RO mapping cycles. When random access is carried out, small data UE sends Preamble codes on RO contained in N3 SSB-to-RO mapping cycles.

And 102, the terminal sends a random access preamble on the target RO.

Specifically, after determining a target RO for transmitting a random access Preamble code, the terminal transmits the random access Preamble code on the target RO.

And the base station receiving terminal sends a random access Preamble code on the target RO.

After receiving the random access Preamble code sent by the terminal on the target RO, the base station determines the type of the terminal according to the SSB2RO mapping period or the number of the SSB2RO association period to which the target RO belongs and the association relationship between the RO and the terminal type.

the number of the SSB2RO association period to which the RO allowed for the CE UE belongs is 1; the number of the SSB2RO association period to which the RO allowed for the RedCap UE belongs is 2; the number of the SSB2RO association period to which the RO allowed to be used by the small data UE belongs is 3.

After receiving the random access Preamble code sent by the terminal on the RO contained in the SSB2RO association period with number 1, the base station determines that the type of the terminal is CE UE; after receiving a random access Preamble code sent by a terminal on an RO contained in SSB2RO association period with the number of 2, a base station determines that the type of the terminal is RedCap UE; after receiving a random access Preamble code sent by a terminal on an RO contained in SSB2RO association period with the number of 3, a base station determines that the type of the terminal is small data UE.

According to the information transmission method provided by the embodiment of the application, different types of terminals are distinguished by using different ROs, the terminals of different types send the random access lead codes in different ROs, and the network side determines the type of the terminal according to the RO used by the terminal to send the random access lead codes, so that fragmentation of resources is avoided, and the utilization rate of the resources is improved.

Optionally, before determining the target RO for sending the random access preamble, the method further includes:

Specifically, in this embodiment of the present application, the association relationship between the RO and the terminal type may be configured by the network side.

And the base station sends an RACH configuration message to the terminal, wherein the RACH configuration message contains the association relation between the RO and the terminal type.

And the terminal receives the RACH configuration message sent by the base station and analyzes the association relation between the RO and the terminal type from the RACH configuration message.

The RACH configuration message may be cell level or network level.

The base station may transmit the RACH configuration message to the terminal through a Physical Broadcast Channel (PBCH).

The RACH configuration message may be carried through a Master Information Block (MIB).

The RACH configuration message may also be carried through a System Information Block (SIB). For example, the RACH configuration message is carried through the first type system information block SIB1, or carried through the second type system information block SIB2, etc.

According to the information transmission method provided by the embodiment of the application, the association relationship between the RO and the terminal type is informed to the terminal in a network side configuration mode, so that the association relationship between the RO and the terminal type is more flexible, and the application range of the method is expanded.

Optionally, the RACH configuration message is a first type system information block SIB 1.

Specifically, in the embodiment of the present application, terminal type identification configuration information is added to SIB1, and the RACH configuration message is carried through SIB 1.

For example, the base station adds configuration information in SIB1, which is used to indicate that N1 SSB-to-RO mapping cycles in C association period are used for random access of CE UE; n2 SSB-to-RO mapping cycles are used for random access of a RedCap UE; n3 SSB-to-RO mapping cycles are used for random access of small data, and so on. Different types of terminals send Preamble codes on the ROs included in the corresponding SSB-to-RO mapping cycle. And the base station determines the type of the terminal by detecting the RO set receiving the preamble code.

According to the information transmission method provided by the embodiment of the application, the RACH configuration message is carried by the SIB1, so that the method can be better compatible with the existing protocol and has better forward compatibility.

Optionally, the association relationship is pre-configured by a protocol.

Specifically, in the embodiment of the present application, the association relationship between the RO and the terminal type is configured in advance through a protocol.

For example, by protocol pre-configuration: the number of a mapping cycle (mapping cycle) from a synchronization signal block to a random access channel (SSB 2RO/SSB-to-RO) to which the RO permitted to be used by the terminal of the type 1 belongs is 1, the number of an SSB2RO mapping cycle to which the RO permitted to be used by the terminal of the type 2 belongs is 2, …, and the number of an SSB2RO mapping cycle to which the RO permitted to be used by the terminal of the type n belongs is n.

According to the information transmission method provided by the embodiment of the application, the association relation between the RO and the terminal type is configured in advance through the protocol, so that the signaling resource overhead is reduced, and the information transmission efficiency is improved.

Specifically, in this embodiment of the present application, before the terminal determines the target RO for sending the random access Preamble code, the method further includes: the base station sends the first identification information to the terminal.

The first identification information is used to indicate that the terminal distinguishes the type of different terminals through the SSB2RO mapping period or the SSB2RO associated period.

And the terminal receives the first identification information sent by the base station.

For example, the base station transmits the first identification information through 1-bit reserved bits in the MIB.

For another example, the base station transmits the first identification information through 1-bit reserved bits except for the MIB carried in the PBCH.

According to the information transmission method provided by the embodiment of the application, the base station sends the first identification information to indicate the terminal to distinguish the types of different terminals through the SSB2RO mapping period or the SSB2RO associated period, so that the base station can control whether the types of different terminals are distinguished through the SSB2RO mapping period or the SSB2RO associated period, and the reliability is improved.

Optionally, the first identification information is carried by a reserved bit of 1 bit in the main system information block MIB.

Specifically, in the embodiment of the present application, the first identification information is carried by using a reserved bit of 1 bit in the MIB, that is, the first identification information is sent by using a reserved bit of 1 bit in the MIB.

For example, a value of 0 for the 1-bit reserved bit in the MIB indicates that the terminal is not allowed to distinguish the types of different terminals by SSB2RO mapping period or SSB2RO associated period; a value of 1-bit reserved bit in the MIB of 1 indicates that the terminal is allowed to distinguish the types of different terminals by SSB2RO mapping period or SSB2RO associated period.

For another example, a value of 1-bit reserved bit in the MIB of 1 indicates that the terminal is not allowed to distinguish the types of different terminals by SSB2RO mapping period or SSB2RO associated period; a value of 0 for the 1-bit reserved bit in the MIB characterizes to allow the terminal to distinguish the types of different terminals by SSB2RO mapping period or SSB2RO associated period.

According to the information transmission method provided by the embodiment of the application, the first identification information is sent through the 1-bit reserved bit in the MIB, extra resources do not need to be occupied, and resource consumption is reduced.

Optionally, a value of 0 in the 1-bit reserved bit in the MIB indicates that the terminal is not allowed to distinguish the types of different terminals through the SSB2RO mapping period or the SSB2RO associated period;

Specifically, in the embodiment of the present application, a value of 1-bit reserved bit in the MIB of 1 indicates that the terminal is not allowed to distinguish the types of different terminals through the SSB2RO mapping period or the SSB2RO association period; a value of 0 for the 1-bit reserved bit in the MIB characterizes a type that allows the terminal to distinguish different terminals by SSB2RO mapping period or SSB2RO associated period.

In the information transmission method provided by the embodiment of the application, the value of the 1-bit reserved bit in the MIB is 1 to represent that the terminal is not allowed to distinguish the types of different terminals through the SSB2RO mapping period or the SSB2RO associated time period; the representation that the value of the 1-bit reserved bit in the MIB is 0 allows the terminal to distinguish the types of different terminals through the SSB2RO mapping period or the SSB2RO associated time period, no additional resources are occupied, and the resource consumption is reduced.

Specifically, in this embodiment of the present application, before the terminal determines the target RO for sending the random access Preamble code, the method further includes: the base station transmits the second identification information to the terminal.

The second identification information is used to indicate that the terminal distinguishes the type of different terminals through the SSB2RO mapping period or the SSB2RO associated period.

And the terminal receives the second identification information sent by the base station.

For another example, the base station transmits the first identification information through 2-bit reserved bits carried in the PBCH, except for the MIB.

According to the information transmission method provided by the embodiment of the application, the base station sends the second identification information to indicate the terminal to distinguish the types of different terminals through the SSB2RO mapping period or the SSB2RO associated period, so that the base station can control whether the types of different terminals are distinguished through the SSB2RO mapping period or the SSB2RO associated period, and the reliability is improved.

Optionally, the second identification information is carried by a reserved 2-bit in a physical broadcast channel PBCH.

Specifically, in the embodiment of the present application, the second identification information is carried by reserved 2 bits in PBCH, that is, the second identification information is sent by reserved 2 bits in PBCH.

For example, the second identification information is transmitted through a reserved bit of 1 bit in the MIB and a reserved bit of 1 bit in PBCH excluding the MIB.

For another example, the second identification information is transmitted through reserved 2-bit bits except for the MIB in the PBCH.

According to the information transmission method provided by the embodiment of the application, the second identification information is sent through the 2-bit reserved bit in the PBCH, extra resources do not need to be occupied, and resource consumption is reduced.

Optionally, a value of 00 for the 2-bit reserved bit in the PBCH characterizes that the terminal is not allowed to distinguish the types of different terminals by SSB2RO mapping period or SSB2RO associated period;

the value of the reserved 2-bit in PBCH of 11 characterizes that the set of types of terminals allowing the terminals to distinguish by the SSB2RO mapping period or the SSB2RO associated time period is the third set.

Specifically, in the embodiment of the present application, the value of the reserved 2-bit in PBCH of 00 indicates that the terminal is not allowed to distinguish the types of different terminals through the SSB2RO mapping period or the SSB2RO association period.

A value of 01 for the 2-bit reserved bit in PBCH characterizes a set of types of terminals that allow the terminals to distinguish by SSB2RO mapping period or SSB2RO associated time period as a first set.

A value of 10 for the 2-bit reserved bit in PBCH characterizes a set of types of terminals that allow the terminals to distinguish by SSB2RO mapping period or SSB2RO associated time period as a second set.

A value of 11 for the 2-bit reserved bit in PBCH characterizes a set of types of terminals that allow the terminals to distinguish by SSB2RO mapping period or SSB2RO associated time period as a third set.

The terminal types contained in the first set, the second set and the third set may be configured according to specific situations. The configuration mode may be configured for the base station, or may be pre-configured for the protocol.

For example, a value of 00 for the 2-bit reserved bit in PBCH characterizes that the terminal is not allowed to distinguish the types of different terminals by SSB2RO mapping period or SSB2RO association period.

A value of 01 for the 2-bit reserved bit in PBCH characterizes that the terminal is allowed to distinguish CE UEs, red cap UEs and small data UEs by SSB2RO mapping period or SSB2RO association period.

A value of 10 for the 2-bit reserved bit in PBCH characterizes that the terminal is allowed to distinguish between CE UEs and reccap UEs by SSB2RO mapping period or SSB2RO association period.

A value of 11 for the 2-bit reserved bit in PBCH characterizes that the terminal is allowed to distinguish between two classes of UEs, red and small data UEs, by the SSB2RO mapping period or SSB2RO association period.

According to the information transmission method provided by the embodiment of the application, whether the terminals need to be distinguished is represented by the 2-bit reserved bits in the PBCH, and when the types of the terminals need to be distinguished, the types of the terminals need to be distinguished specifically, so that the resource consumption is further reduced, and the resource utilization rate is improved.

Optionally, the target RO is RO included in N target SSB2RO mapping periods within C target SSB2RO associated periods; c and N are positive integers.

Specifically, in the embodiment of the present application, the RO used by the terminal to send the random access Preamble code is an RO included in N SSB2RO mapping periods within the associated time period of C SSB2 RO; c and N are positive integers.

That is, the RO used by one type of terminal to send the random access Preamble code may be the RO in the same SSB2RO association period, or may be the RO in different SSB2RO association periods.

The RO used by one type of terminal to send the random access Preamble code may be the RO in the same SSB2RO mapping period, or the RO in different SSB2RO mapping periods.

For example, the terminal with type number 1 sends the random access Preamble code using the RO in the SSB2RO association period with number 1, the terminal with type number 2 sends the random access Preamble code using the RO in the SSB2RO association period with number 2, and the terminal with type number 3 sends the random access Preamble code using the RO in the SSB2RO association period with number 3.

For another example, the terminal with type number 1 sends the random access Preamble code using the RO in the mapping cycle of SSB2RO with number 1 in the SSB2RO association period with number 1, the terminal with type number 2 sends the random access Preamble code using the RO in the mapping cycle of SSB2RO with number 2 in the SSB2RO association period with number 1, and the terminal with type number 3 sends the random access Preamble code using the RO in the mapping cycle of SSB2RO with number 3 in the SSB2RO association period with number 1.

It should be noted that: the above examples are not exhaustive, and as long as it can be ensured that the mapping periods of the SSB2RO to which the ROs used by different terminals belong do not overlap, other configuration manners that can distinguish different terminals according to the number of the mapping period of the SSB2RO to which the RO belongs are all possible, and are not described herein again.

Optionally, the association relationship is: the type number of the terminal corresponds to the number of the SSB2RO mapping period or the SSB2RO associated period to which the RO the terminal is allowed to use, and the SSB2RO mapping period or the SSB2RO associated period corresponding to different type numbers are different in number.

Specifically, in the embodiment of the present application, the association relationship between the RO and the terminal type is as follows:

the type number of the terminal corresponds to the number of the SSB2RO mapping period or the SSB2RO associated period to which the RO the terminal is allowed to use, and the SSB2RO mapping period or the SSB2RO associated period corresponding to different type numbers are different in number.

the SSB2RO association period (association period) to which the RO permitted to be used by the terminal of type number 1 belongs is numbered 1, the SSB2RO association period to which the RO permitted to be used by the terminal of type number 2 belongs is numbered 2, …, and the SSB2RO association period to which the RO permitted to be used by the terminal of type number n belongs is numbered n.

In the information transmission method provided in the embodiment of the present application, the type number of the terminal corresponds to the SSB2RO mapping period or the number of the SSB2RO associated time period to which the RO allowed to be used by the terminal belongs, and the SSB2RO mapping periods or the numbers of the SSB2RO associated time periods corresponding to different type numbers are different, so that different types of terminals are distinguished, fragmentation of resources is avoided, and the utilization rate of the resources is improved.

Optionally, the association relationship is formulated as follows:

m＝mod(n _cycle ,M)+n

wherein m is the type number of the terminal; m is the number of the types of the terminals needing to be distinguished; n is _cycle The number of the cycle or SSB2RO associated period is mapped for the SSB2RO to which the RO permitted to be used by the mth class of terminal belongs, and n is a natural number.

Specifically, in the embodiment of the present application, the association relationship between the RO and the terminal type is expressed by the following formula:

m＝mod(n _cycle ,M)+n

wherein m is the type number of the terminal; m is terminal needing to be distinguishedThe number of categories of (c); n is _cycle The number of the cycle or SSB2RO associated period is mapped for the SSB2RO to which the RO permitted to be used by the mth class of terminal belongs, and n is a natural number.

For example, starting from a Frame (SFN #0) in which the System Frame Number (SFN) is 0, mod (n) _cycle M) ═ 0 SSB-to-RO mapping cycle or association period contains RO for use by a first type of terminal (type number 1 terminal), mod (n) (n _cycle M) — 1, the SSB-to-RO mapping cycle or association period contains an RO for use by a second type of terminal (type number 2 terminal), mod (n) _cycle The SSB-to-RO mapping cycle or association period of M) ═ 2 contains an RO for use by a third type of terminal (type number 3 terminal), and so on.

According to the information transmission method provided by the embodiment of the application, the type number of the terminal and the module value of the number of the SSB2RO mapping period or the SSB2RO associated time period to which the RO allowed to be used by the terminal belongs are in corresponding relation, so that different types of terminals are distinguished, fragmentation of resources is avoided, and the utilization rate of the resources is improved.

The method in the above embodiment is further described with several specific examples below:

example 1:

the 5G system introduces various types of terminals in Rel-17 and subsequent versions, the terminals are suitable for different application scenes, have corresponding capabilities and support technologies, and need to be distinguished as early as possible so as to achieve optimal performance. Suppose that there are three new types of terminals in the current system that need to be distinguished in random access procedure, which are: CE UE, RedCap UE and small data UE. The network side configures the same RACH configuration for the three different types of terminals, and determines the type of the terminal through part of the ROs in the ROs determined by the RACH configuration.

It is assumed that the network side distinguishes the specific types of terminals on the RO resources by configuring specific ROs for different types of terminals.

Assume that the current system is FDD, the frequency band is FR1, and the RACH resource number configured by the base station for three different types of terminals is RACH configuration #27 (see reference documents TS38.211 and Table 6.3.3.2-2 for specific parameter configuration and meaning). Assume that the number of synchronization signal block candidates (SSB candidates) in the current system is 8. Then, according to the parameter SSB-perRACH-occupancy and dcb-preamble PerssB carried in the SIB1, the mapping relationship between SSB, RO and preamble codes can be known, and it is assumed that each RO is mapped with one SSB and each SSB is mapped with 8 preamble codes. Based on this configuration, the SSB-to-RO association period size at this time is 10 slots. Assuming that SCS is 15kHz, the SSB-to-RO association period is 10 ms.

Based on the above configuration, a schematic diagram of ROs available for RACH transmission and unavailable for RACH transmission within one association period is shown in fig. 2.

The base station additionally sends configuration information of ROs corresponding to different types of terminals in the SIB1, including:

1) the time window for terminal type identification contains the number of SSB-to-RO association period or SSB-to-RO mapping cycle.

2) Indicating N1 SSB-to-RO mapping cycles in the C association period for random access of the type 1 terminal; n2 SSB-to-RO mapping cycles are used for the random access of the type 2 terminal; n3 SSB-to-RO mapping cycles are used for random access by type 3 terminals, and so on. Different types of terminals send Preamble codes on corresponding ROs.

Wherein, N1 cycles, N2 cycles and N3 cycles are not overlapped with each other. N1+ N2+ N3+ … < ═ C cycles sums contained within the association period. C, N1, N2 and N3 … are integers of 1 or more.

Let C be 3, N1 be 1, N2 be 1, and N3 be 1, i.e., CE UE corresponds to the first SSB-to-RO mapping cycle, red ap UE corresponds to the second SSB-to-RO mapping cycle, and small data UE corresponds to the third SSB-to-RO mapping cycle. According to the information, all the ROs contained in the first SSB-to-RO mapping cycle in fig. 2 are determined to be used for CE UEs, all the ROs contained in the second SSB-to-RO mapping cycle are determined to be used for red map UEs, and all the ROs contained in the third SSB-to-RO mapping cycle are determined to be used for small data UEs. That is, the CE UE can only send the corresponding preamble code in any RO included in the first SSB-to-RO mapping cycle, the red UE can only send the corresponding preamble code in any RO included in the second SSB-to-RO mapping cycle, and the small data UE can only send the corresponding preamble code in any RO included in the third SSB-to-RO mapping cycle.

Correspondingly, if the network side detects that the preamble code is received in any RO contained in the first SSB-to-RO mapping cycle, the terminal is determined to be CE UE; if detecting that a preamble code is received in any RO contained in the second SSB-to-RO mapping cycle, determining that the terminal is a RedCap UE; and if the preamble code is detected to be received in any RO contained in the third SSB-to-RO mapping cycle, determining that the terminal is a Recmap UE.

Example 2:

when the base station configures the corresponding number of ROs { N1, N2, N3 … } for different types of terminals, the base station may configure the different types of terminals in a bitmap manner. That is, different types of terminals determine which ROs in the C association period are used for preamble transmission according to respective bitmaps.

Each type of terminal determines the corresponding RO according to the bitmap with the length of 3 bits, wherein 1 in the bitmap indicates that the RO is available, and 0 indicates that the RO is unavailable.

Assuming that bitmaps corresponding to CE UEs, red UEs, and small data UEs are {100}, {010}, and {001}, respectively, SSB-to-RO mapping cycles corresponding to the three types of terminals are: CE UE corresponds to a first SSB-to-RO mapping cycle, RedCap UE corresponds to a second SSB-to-RO mapping cycle, and small data UE corresponds to a third SSB-to-RO mapping cycle.

Reference may be made to example 1 for a method for a terminal to send a preamble code and a method for a base station to detect and receive the preamble code, which are not described herein again.

Example 3:

one RO may correspond to multiple SSBs, i.e., one SSB-to-RO association period may contain multiple SSB-to-RO mapping cycles.

The configuration information of the different types of terminals corresponding to the RO may be pre-configured by a protocol, or refer to example 1 or example 2, which is not described herein again.

Example 4:

in this example, a 1-bit reserved bit in the MIB is used to determine whether there is a portion of the SSB-to-RO mapping cycle or the association period configured in the current C association periods (association periods) for identification (identification) of different types of UEs.

The value of the 1-bit reserved bit is 0, which means that the identification of different types of UEs by the SSB-to-RO mapping cycle or the association period is not supported.

The value of the 1-bit reserved bit is 1, which indicates that the identification of different types of UEs through the SSB-to-RO mapping cycle or association period is supported.

Which SSB-to-RO mapping cycle or association period is used for the identification of different types of terminals can be determined in a protocol-predefined manner.

For example, by protocol definition, starting from SFN #0, mod (n) _cycle M) 0 SSB-to-RO mapping cycle or association period contains RO for a first type of terminal, mod (n) _cycle The SSB-to-RO mapping cycle or association period with M) ═ 1 contains ROs for the second type of terminal, mod (n) _cycle M) — 2, the SSB-to-RO mapping cycle or association period contains an RO for a third type of terminal, and so on.

Wherein n is _cycle The number of SSB-to-RO mapping cycle or SSB-to-RO association period. M is the number of the SSB-to-RO mapping cycles or the SSB-to-RO association period contained in the SSB-to-RO association period window which is predefined and used for identifying the type of the terminal, different types of terminals correspond to different SSB-to-RO mapping cycles or SSB-to-RO association periods, and M can also be understood as the number of the types of the terminals needing to be distinguished.

A certain type of terminal can only send a preamble code on the RO corresponding to that type of terminal. Once the network side detects that the preamble code is received, the specific type of the terminal sending the preamble code is determined according to the type of the terminal corresponding to the RO, and corresponding operation is performed according to the type of the terminal.

Example 5:

in this example, whether there is a part of identification for different types of UEs is determined by the SSB-to-RO mapping cycle or association period configured in the current C association periods (association periods) through 2-bit reserved bits in the PBCH, and a preamble code is sent on the corresponding RO.

A value of 00 for the 2-bit reserved bit in PBCH characterizes that the terminal is not allowed to distinguish the types of different terminals by SSB2RO mapping period or SSB2RO associated period;

a value of 01 for the 2-bit reserved bit in PBCH characterizes a first set of types of terminals that allow the terminals to be distinguished by the SSB2RO mapping period or the SSB2RO associated period;

a value of 10 for the 2-bit reserved bit in PBCH characterizes a set of types of terminals that allow the terminals to distinguish by SSB2RO mapping period or SSB2RO associated time period as a second set;

The method for the terminal to send the preamble code and the base station to detect and receive the preamble code may refer to example 1, which is not described herein again.

Fig. 3 is a second flowchart of an information transmission method according to an embodiment of the present disclosure, and as shown in fig. 3, an execution subject of the information transmission method according to the embodiment of the present disclosure may be a network side device, for example, a base station. The method comprises the following steps:

301, a base station receives a random access lead code sent by a target terminal on a target RO;

step 302, the base station determines the type of the target terminal according to the mapping period from the synchronization signal block to the random access channel opportunity SSB2RO to which the target RO belongs or the number of the SSB2RO associated time period and the association relationship between the random access channel opportunity RO and the terminal type.

Optionally, before the base station receives the random access preamble sent by the target terminal on the target RO, the method further includes:

Optionally, the association relationship is pre-configured by a protocol.

Optionally, a value of 0 in the reserved bit of 1 bit in the MIB indicates that the terminal is not allowed to distinguish between different terminal types through the SSB2RO mapping period or the SSB2RO associated period;

Optionally, the target ROs map the ROs included in a cycle for N target SSB2RO within C target SSB2RO associated time periods; c and N are positive integers.

Optionally, the association relationship is: the type number of the terminal corresponds to the number of the SSB2RO mapping period or SSB2RO associated period to which the RO that the terminal is allowed to use belongs, and the SSB2RO mapping period or SSB2RO associated period corresponding to different type numbers are different in number.

Optionally, the association relationship is formulated as follows:

m＝mod(n _cycle ,M)+n

Specifically, the information transmission method provided in the embodiment of the present application may refer to the method embodiment in which the execution subject is a terminal, and may achieve the same technical effects, and details of the same parts and beneficial effects as those in the corresponding method embodiment in this embodiment are not described herein again.

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

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:

transmitting a random access preamble on the target RO.

And in particular transceiver 400, for receiving and transmitting data under the control of processor 410.

Where in fig. 4, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 410 and various circuits of memory represented by memory 420 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 400 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over transmission media including wireless channels, wired channels, fiber optic cables, and the like. For different user devices, the user interface 430 may also be an interface capable of interfacing with a desired device externally, 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), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a CPLD (Complex Programmable Logic Device), and the processor may also have a multi-core architecture.

The processor is used for executing any one of the methods provided by the embodiment of the application according to the obtained executable instructions by calling the computer program stored in the memory. The processor and memory may also be physically separated.

Optionally, the association relationship is pre-configured by a protocol.

receiving first identification information sent by a base station; the first identification information is used to instruct the terminals to distinguish the types of different terminals through a synchronization signal block to random access channel occasion SSB2RO mapping period or SSB2RO associated period.

Optionally, a value of 00 of the 2-bit reserved bits in the PBCH characterizes that the terminal is not allowed to distinguish types of different terminals through an SSB2RO mapping period or an SSB2RO associated time period;

Optionally, the association relationship is formulated as follows:

m＝mod(n _cycle ,M)+n

It should be noted that, the terminal provided in the embodiment of the present application can implement all the method steps implemented by the method embodiment in which the execution subject is the 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 not repeated here.

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

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:

receiving a random access lead code sent by a target terminal on a target RO;

And in particular transceiver 500, for receiving and transmitting data under control of processor 510.

Wherein in fig. 5, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 510, and various circuits, represented by memory 520, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 500 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium including wireless channels, wired channels, fiber optic cables, and the like. 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 (ASIC), a Field Programmable Gate Array (FPGA), or a Complex Programmable Logic Device (CPLD), and may also have a multi-core architecture.

Optionally, the association relationship is pre-configured by a protocol.

Optionally, the association relationship is formulated as follows:

m＝mod(n _cycle ,M)+n

It should be noted that, the base station provided in the embodiment of the present application can implement all the method steps implemented by the method embodiment in which the execution subject is the base station, and can achieve the same technical effect, and details of the same parts and beneficial effects as those of the method embodiment in this embodiment are not described herein again.

Fig. 6 is a schematic structural diagram of an information transmission apparatus according to an embodiment of the present application, and as shown in fig. 6, the information transmission apparatus includes a first determining module 601 and a first sending module 602, where:

the first determining module 601 is configured to determine a target RO for sending a random access preamble according to a type of the first determining module and an association relationship between a random access channel opportunity RO and a terminal type; a first sending module 602 is configured to send a random access preamble on the target RO.

Optionally, the system further comprises a second receiving module;

the second receiving module is configured to receive a random access channel RACH configuration message sent by a base station; the RACH configuration message includes the association relationship.

Optionally, the association relationship is pre-configured by a protocol.

Optionally, a third receiving module is further included;

the third receiving module is configured to receive first identification information sent by the base station; the first identification information is used to instruct the terminals to distinguish the types of different terminals through a synchronization signal block to random access channel occasion SSB2RO mapping period or SSB2RO association period.

Optionally, the system further comprises a fourth receiving module;

the fourth receiving module is configured to receive second identification information sent by the base station; the second identification information is used to indicate a type set of terminals distinguished by the SSB2RO mapping period or SSB2RO associated period.

Optionally, the association relationship is formulated as follows:

m＝mod(n _cycle ,M)+n

Specifically, the information transmission apparatus provided in this embodiment of the present application can implement all the method steps implemented by the method embodiment in which the execution subject is the terminal, and can achieve the same technical effect, and details of the same parts and beneficial effects as those of the method embodiment in this embodiment are not described herein again.

Fig. 7 is a second schematic structural diagram of an information transmission apparatus according to an embodiment of the present application, and as shown in fig. 7, the information transmission apparatus includes a first receiving module 701 and a second determining module 702, where:

the first receiving module 701 is configured to receive a random access preamble sent by a target terminal on a target RO; the second determining module 702 is configured to determine the type of the target terminal according to the number of the mapping period from the synchronization signal block to the random access channel opportunity SSB2RO or SSB2RO association period to which the target RO belongs and the association relationship between the random access channel opportunity RO and the terminal type.

Optionally, the system further comprises a second sending module;

the second sending module is configured to send a random access channel RACH configuration message to the target terminal; the RACH configuration message includes the association relationship.

Optionally, the association relationship is pre-configured by a protocol.

Optionally, the system further includes a third sending module;

the third sending module is used for sending first identification information to the target terminal; the first identification information is used to instruct the terminals to distinguish the types of different terminals through a synchronization signal block to random access channel occasion SSB2RO mapping period or SSB2RO association period.

Optionally, the system further includes a fourth sending module;

the fourth sending module is used for sending second identification information to the target terminal; the second identification information is used to indicate a type set of terminals distinguished by the SSB2RO mapping period or SSB2RO associated period.

Optionally, the association relationship is formulated as follows:

m＝mod(n _cycle ,M)+n

Specifically, the information transmission apparatus provided in this embodiment of the present application can implement all the method steps implemented by the method embodiment in which the execution subject is the base station, and can achieve the same technical effect, and details of the same parts and beneficial effects as those of the method embodiment in this embodiment are not described herein again.

It should be noted that, in the foregoing embodiments of the present application, the division of the units/modules is schematic, and is only a logic function division, and another division manner may be used in actual implementation. In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented as a software functional unit and sold or used as a stand-alone product, may be stored in a processor readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

Optionally, an embodiment of the present application further provides a processor-readable storage medium, where the processor-readable storage medium stores a computer program, where the computer program is configured to cause the processor to execute the method provided in each of the foregoing embodiments, and the method includes:

determining a target RO for sending the random access lead code according to the type of the target RO and the incidence relation between the random access channel opportunity RO and the terminal type; transmitting a random access preamble on the target RO.

Or comprises the following steps:

receiving a random access lead code sent by a target terminal on a target RO; and determining the type of the target terminal according to the mapping period from the synchronization signal block to the random access channel occasion SSB2RO to which the target RO belongs or the number of the SSB2RO association period and the association relationship between the random access channel occasion RO and the terminal type.

It should be noted that: the processor-readable storage medium can be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic memory (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical memory (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor memory (e.g., ROMs, EPROMs, EEPROMs, non-volatile memory (NAND FLASH), Solid State Disks (SSDs)), etc.

In addition, it should be noted that: in the embodiment of the present application, the term "and/or" describes an association relationship of associated objects, and means that there may be three relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

In the embodiments of the present application, the term "plurality" means two or more, and other terms are similar thereto.

The technical scheme provided by the embodiment of the application can be suitable for various systems, particularly 5G systems. For example, suitable systems may be global system for mobile communications (GSM) systems, Code Division Multiple Access (CDMA) systems, Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS) systems, Long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD) systems, long term evolution (long term evolution) systems, LTE-a systems, universal mobile systems (universal mobile telecommunications systems, UMTS), universal internet Access (world interoperability for microwave Access (WiMAX) systems, New Radio interface (NR) systems, etc. These various systems include terminal devices and network devices. The System may further include a core network portion, such as an Evolved Packet System (EPS), a 5G System (5GS), and the like.

The terminal device referred to in the embodiments of the present application may refer to a device providing voice and/or data connectivity to a user, a handheld device having a wireless connection function, or another processing device connected to a wireless modem. In different systems, the names of the terminal devices may be different, for example, in a 5G system, the terminal device may be called a User Equipment (UE). A wireless terminal device, which may be a mobile terminal device such as a mobile telephone (or "cellular" telephone) and a computer having a mobile terminal device, for example, a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device, may communicate with one or more Core Networks (CNs) via a Radio Access Network (RAN). Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). The wireless terminal device may also be referred to as a system, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile), a remote station (remote station), an access point (access point), a remote terminal device (remote terminal), an access terminal device (access terminal), a user terminal device (user terminal), a user agent (user agent), and a user device (user device), which are not limited in this embodiment of the present application.

The network device according to the embodiment of the present application may be a base station, and the base station may include a plurality of cells for providing services to a terminal. A base station may also be referred to as an access point, or a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or by other names, depending on the particular application. The network device may be configured to exchange received air frames and Internet Protocol (IP) packets with one another as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communications network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiment of the present application may be a Base Transceiver Station (BTS) in a Global System for Mobile communications (GSM) or a Code Division Multiple Access (CDMA), may be a network device (NodeB) in a Wideband Code Division Multiple Access (WCDMA), may be an evolved Node B (eNB or e-NodeB) in a Long Term Evolution (LTE) System, may be a 5G Base Station (gbb) in a 5G network architecture (next evolution System), may be a Home evolved Node B (HeNB), a relay Node (relay Node), a Home Base Station (femto), a pico Base Station (pico Base Station), and the like, which are not limited in the embodiments of the present application. In some network architectures, a 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 (MIMO) transmission may be performed between the network device and the terminal device by using one or more antennas, where the MIMO transmission may be Single User MIMO (SU-MIMO) or Multi-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 root antenna combinations.

As will be appreciated by one skilled in the art, 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, 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 flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams 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 changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. An information transmission method, comprising:

the terminal transmits a random access preamble on the target RO.

2. The information transmission method according to claim 1, wherein the determining the target RO for sending the random access preamble is preceded by:

3. The information transmission method according to claim 2, wherein the RACH configuration message is a first-type system information block SIB 1.

4. The information transmission method according to claim 1, wherein the association relationship is protocol pre-configured.

5. The information transmission method according to claim 4, wherein the determining the target RO for sending the random access preamble is preceded by:

6. The information transmission method according to claim 5, wherein said first identification information is carried by 1-bit reserved bits in a main system information block, MIB.

7. The information transmission method according to claim 6, wherein a value of 0 in the reserved bit of 1 bit in the MIB characterizes that the terminal is not allowed to distinguish the types of different terminals by SSB2RO mapping period or SSB2RO association period;

8. The information transmission method according to claim 4, wherein the determining the target RO for sending the random access preamble is preceded by:

9. The information transmission method of claim 8, wherein the second identification information is carried by a reserved 2-bit in a Physical Broadcast Channel (PBCH).

10. The information transmission method of claim 9, wherein a value of 00 for the 2-bit reserved bits in the PBCH characterizes that the terminal is not allowed to distinguish different terminal types by SSB2RO mapping period or SSB2RO association period;

11. The information transmission method according to claim 1, wherein the target RO is RO contained in N target SSB2RO mapping periods within C target SSB2RO associated periods; c and N are positive integers.

12. The information transmission method according to claim 1, wherein the association relationship is: the type number of the terminal corresponds to the number of the SSB2RO mapping period or the SSB2RO associated period to which the RO the terminal is allowed to use, and the SSB2RO mapping period or the SSB2RO associated period corresponding to different type numbers are different in number.

13. The information transmission method according to claim 12, wherein the association is formulated as follows:

m＝mod(n _cycle ,M)+n

wherein m is the type number of the terminal; m is the number of the types of the terminals needing to be distinguished; n is a radical of an alkyl radical _cycle The number of the cycle or SSB2RO associated period is mapped for the SSB2RO to which the RO permitted to be used by the mth class of terminal belongs, and n is a natural number.

14. An information transmission method, comprising:

and the base station determines the type of the target terminal according to the mapping period from the synchronization signal block to the target RO to the random access channel opportunity SSB2RO or the number of the SSB2RO association period and the association relation between the random access channel opportunity RO and the terminal type.

15. The information transmission method of claim 14, wherein the base station receives the random access preamble sent by the target terminal on the target RO, and further comprising:

16. The information transmission method of claim 15, wherein the RACH configuration message is a first system information block SIB 1.

17. The information transmission method according to claim 14, wherein the association is protocol preconfigured.

18. The information transmission method of claim 17, wherein the base station receives the random access preamble transmitted by the target terminal on the target RO, and further comprising:

19. The information transmission method according to claim 18, wherein the first identification information is carried by a 1-bit reserved bit in a main system information block MIB.

20. The information transmission method of claim 19, wherein a value of 0 in the 1-bit reserved bit in the MIB characterizes that terminals are not allowed to distinguish different terminal types by SSB2RO mapping period or SSB2RO association period;

21. The information transmission method of claim 17, wherein the base station receives the random access preamble sent by the target terminal on the target RO, and further comprising:

22. The information transmission method of claim 21, wherein the second identification information is carried by a 2-bit reserved bit in a Physical Broadcast Channel (PBCH).

23. The information transmission method of claim 22, wherein a value of 00 for the 2-bit reserved bits in the PBCH characterizes that the terminal is not allowed to distinguish different terminal types by SSB2RO mapping period or SSB2RO associated time period;

24. The information transmission method according to claim 14, wherein the target RO is RO contained in N target SSB2RO mapping periods within C target SSB2RO associated periods; c and N are positive integers.

25. The information transmission method according to claim 14, wherein the association relationship is: the type number of the terminal corresponds to the number of the SSB2RO mapping period or the SSB2RO associated period to which the RO the terminal is allowed to use, and the SSB2RO mapping period or the SSB2RO associated period corresponding to different type numbers are different in number.

26. The information transmission method according to claim 25, wherein the association is formulated as follows:

m＝mod(n _cycle ,M)+n

27. A terminal comprising a memory, a transceiver, a processor;

transmitting a random access preamble on the target RO.

28. The terminal of claim 27, wherein before determining the target RO for sending the random access preamble, the method further comprises:

29. The terminal of claim 28, wherein the RACH configuration message is a first type system information block SIB 1.

30. The terminal of claim 27, wherein the association is protocol preconfigured.

31. The terminal of claim 30, wherein before determining the target RO for sending the random access preamble, the method further comprises:

32. The terminal of claim 31, wherein the first identification information is carried by 1-bit reserved bits in a main system information block, MIB.

33. The terminal of claim 32, wherein a value of 0 in the 1-bit reserved bit in the MIB characterizes that the terminal is not allowed to distinguish between different terminal types by SSB2RO mapping period or SSB2RO associated period;

34. The terminal of claim 30, wherein before determining the target RO for sending the random access preamble, the method further comprises:

35. The terminal of claim 34, wherein the second identification information is carried by reserved 2-bits in a Physical Broadcast Channel (PBCH).

36. The terminal of claim 35, wherein a value of 00 for the 2-bit reserved bit in the PBCH characterizes that the terminal is not allowed to distinguish different terminal types by SSB2RO mapping period or SSB2RO associated time period;

37. The terminal of claim 27, wherein the target RO is an RO included in N target SSB2RO mapping periods within C target SSB2RO associated time periods; c and N are positive integers.

38. The terminal of claim 27, wherein the association relationship is: the type number of the terminal corresponds to the number of the SSB2RO mapping period or the SSB2RO associated period to which the RO the terminal is allowed to use, and the SSB2RO mapping period or the SSB2RO associated period corresponding to different type numbers are different in number.

39. The terminal of claim 38, wherein the association is formulated as follows:

m＝mod(n _cycle ,M)+n

40. A base station comprising a memory, a transceiver, 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:

receiving a random access lead code sent by a target terminal on a target RO;

and determining the type of the target terminal according to the mapping period from the synchronization signal block to the random access channel opportunity SSB2RO or the number of the SSB2RO associated time period and the association relationship between the random access channel opportunity RO and the type of the terminal.

41. The base station of claim 40, wherein the base station further comprises, before the target terminal sends the random access preamble on the target RO:

42. The base station of claim 41, wherein the RACH configuration message is a first type system information block (SIB 1).

43. The base station of claim 40, wherein the association is protocol preconfigured.

44. The base station of claim 42, wherein the base station further comprises, before the target terminal sends the random access preamble on the target RO:

45. The base station of claim 44, wherein the first identity information is carried by 1-bit reserved bits in a main system information block, MIB.

46. The base station of claim 45, wherein a value of 0 in a 1-bit reserved bit in the MIB characterizes not allowing terminals to distinguish different terminal types by SSB2RO mapping period or SSB2RO associated period;

47. The base station of claim 42, wherein the base station further comprises, before the target terminal sends the random access preamble on the target RO:

48. The base station of claim 47, wherein the second identification information is carried by a 2-bit reserved bit in a Physical Broadcast Channel (PBCH).

49. The base station of claim 48, wherein a value of 00 for the 2-bit reserved bit in the PBCH characterizes that the terminal is not allowed to distinguish different terminal types by SSB2RO mapping period or SSB2RO association period;

50. The base station of claim 40, wherein the target RO is a RO contained in N target SSB2RO mapping periods within C target SSB2RO association periods; c and N are both positive integers.

51. The base station of claim 40, wherein the association relationship is: the type number of the terminal corresponds to the number of the SSB2RO mapping period or the SSB2RO associated period to which the RO the terminal is allowed to use, and the SSB2RO mapping period or the SSB2RO associated period corresponding to different type numbers are different in number.

52. The base station of claim 51, wherein the association is formulated as follows:

m＝mod(n _cycle ,M)+n

53. An information transmission apparatus, comprising:

54. An information transmission apparatus, comprising:

55. A processor-readable storage medium, characterized in that the processor-readable storage medium stores a computer program for causing a processor to perform the method of any one of claims 1 to 26.