CN116436575A - Random access resource configuration method, device, base station, terminal and storage medium - Google Patents

Abstract

The application discloses a method, a device, a base station, a terminal and a storage medium for configuring random access resources, wherein the method comprises the following steps: the base station sends a first indication to the terminal; the first indication is used for indicating the terminal to initiate random access or switch on a first RO resource; the first RO resource characterizes a frequency-division resource of a first preamble index.

Description

Random access resource configuration method, device, base station, terminal and storage medium

technical field

The present application relates to the field of wireless technologies, and in particular to a random access resource configuration method, device, base station, terminal and storage medium.

Background technique

Based on the fifth-generation mobile communication technology (5G) new air interface (NR, New Radio) configuration, the terminal can randomly select an RO from multiple random access opportunities (RO, RACH Occasion) to initiate random access. However, the related configuration will lead to a higher physical random access channel (PRACH, Physical Random Access Channel) collision probability.

Contents of the invention

To solve related technical problems, embodiments of the present application provide a random access resource configuration method, device, base station, terminal, and storage medium.

The technical scheme of the embodiment of the application is realized in this way:

The embodiment of this application provides a method for configuring random access resources, which is applied to a base station, including:

sending a first indication to the terminal; wherein,

The first indication is used to instruct the terminal to initiate random access or perform handover on a first RO resource; the first RO resource represents a frequency-division resource of a first preamble index.

Wherein, in the above solution, the first indication is used to instruct the terminal to initiate random access on the first RO resource; the sending the first indication to the terminal includes:

The first indication is configured in a system information block (SIB, System Information Block) 1 .

In the above solution, the first indication includes a first Frequency Division Multiplexing (FDM, Frequency Division Multiplexing) index; the first FDM index is used to characterize the first RO resource.

In the above solution, the first FDM index is determined based on at least one of the following:

a terminal type of said terminal;

Collision probability of random access channel;

The channel condition of the random access channel.

In the above solution, the configuring the first indication in SIB1 includes:

Configure at least one item of first setting information in SIB 1; where,

The terminal determines the first RO resource based on the at least one item of first setting information.

In the above solution, the first setting information includes:

The cell radio network temporary identifier (C-RNTI, Cell-Radio Network TemporaryIdentifier) of the first cell;

The physical cell identity (PCI, Physical Cell Identity) of the first cell;

at least two value intervals of the first path loss;

The initial value and step size of the first path loss; where,

The first cell represents a cell where the terminal resides in a preamble; the first path loss represents a path loss measured by the terminal from the base station to the terminal.

In the above solution, the first indication is used to instruct the terminal to switch on the first RO resource; the sending the first indication to the terminal includes:

A first FDM index is configured in a random access channel dedicated configuration; the first FDM index is used to characterize the first RO resource.

In the above solution, the first FDM index is determined based on at least one of the following:

C-RNTI of the second cell accessed by the terminal;

The sub-band channel environment reported by the terminal;

A channel sounding reference signal (SRS, Sounding Reference Signal) reported by the terminal;

The power headroom reported by the terminal.

In the above scheme, the method also includes:

Configure the first parameter of the terminal to be empty or the first parameter value; wherein,

The first parameter represents the totalNumberOfRA-Preambles parameter; the value of the first parameter represents the sum of all RO preamble indexes.

The embodiment of the present application also provides a method for configuring random access resources, which is applied to a terminal, including:

receiving the first indication sent by the base station; wherein,

The first indication is used to instruct the terminal to initiate random access or perform handover on a first RO resource; the first RO resource represents a frequency-division resource of a first preamble index.

Wherein, in the above solution, the first indication is used to instruct the terminal to initiate random access on the first RO resource; the receiving the first indication sent by the base station includes:

receiving the SIB1 sent by the base station, and determining the first RO resource based on the first indication configured in the SIB1 by the base station.

In the above solution, the first indication includes a first FDM index; the first FDM index is used to characterize the first RO resource.

In the above solution, the first FDM index is determined based on at least one of the following:

a terminal type of said terminal;

Collision probability of random access channel;

The channel condition of the random access channel.

In the above solution, the determining the first RO resource based on the first indication configured by the base station in SIB 1 includes:

The first RO resource is determined based on at least one item of first setting information configured by the base station in SIB1.

In the above solution, the first setting information includes the C-RNTI or PCI of the first cell; the first RO is determined based on at least one item of first setting information configured by the base station in SIB 1 resources, including:

Determine the first RO resource based on a modulo result of the C-RNTI or PCI of the first cell and MSG1-FDM; wherein,

The first cell represents a cell where the terminal camps on in a preamble.

In the above solution, the first setting information includes at least two value intervals of the first path loss, or the initial value and step size of the first path loss; An item of first setting information to determine the first RO resource, including:

Determine at least two value intervals of the first path loss based on the first setting information, and sequentially initiate random access on resources corresponding to the value intervals.

In the above solution, the first indication is used to instruct the terminal to switch on the first RO resource; the receiving the first indication sent by the base station includes:

Receiving that the base station configures a first FDM index in a random access channel dedicated configuration; the first FDM index is used to characterize the first RO resource.

In the above solution, the first FDM index is determined based on at least one of the following:

C-RNTI of the second cell accessed by the terminal;

The sub-band channel environment reported by the terminal;

The SRS reported by the terminal;

The power headroom reported by the terminal.

The embodiment of the present application also provides a device for configuring random access resources, including:

The first sending unit is configured to send the first indication to the terminal; wherein,

The first indication is used to instruct the terminal to initiate random access or perform handover on a first RO resource; the first RO resource represents a frequency-division resource of a first preamble index.

The embodiment of the present application also provides a device for configuring random access resources, including:

The first receiving unit is configured to receive the first indication sent by the base station; wherein,

The first indication is used to instruct the terminal to initiate random access or perform handover on a first RO resource; the first RO resource represents a frequency-division resource of a first preamble index.

The embodiment of the present application also provides a base station, including: a first processor and a first communication interface; wherein,

The first communication interface is configured to send a first indication to the terminal; wherein,

The first indication is used to instruct the terminal to initiate random access or perform handover on a first RO resource; the first RO resource represents a frequency-division resource of a first preamble index.

The embodiment of the present application also provides a second base station, including: a second processor and a second communication interface; wherein,

The second communication interface is used to receive the first indication sent by the base station; wherein,

The first indication is used to instruct the terminal to initiate random access or perform handover on a first RO resource; the first RO resource represents a frequency-division resource of a first preamble index.

An embodiment of the present application also provides a base station, including: a first processor and a first memory for storing a computer program that can run on the processor,

Wherein, when the first processor is configured to run the computer program, it executes the steps of any one method on the base station side.

An embodiment of the present application also provides a terminal, including: a second processor and a second memory for storing a computer program that can run on the processor,

Wherein, when the second processor is configured to run the computer program, it executes the steps of any one of the above methods on the terminal side.

The embodiment of the present application also provides a storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of any of the above methods on the base station side, or the steps of any of the above methods on the terminal side are realized.

Embodiments of the present application provide a random access resource configuration method, device, base station, terminal, and storage medium, wherein the base station sends a first indication to the terminal, and the first indication is used to instruct the terminal to initiate a random access resource on the first RO resource. Random access or handover, where the first RO resource represents the frequency-division resource of the first preamble index. In this way, different terminals can frequency-division multiplex the same preamble index resource through the first indication, which realizes the resource expansion of the preamble index and reduces the PRACH collision probability when the terminal accesses.

Description of drawings

FIG. 1 is a schematic flowchart of a method for configuring random access resources according to an embodiment of the present application;

FIG. 2 is a schematic flowchart of another method for configuring random access resources according to an embodiment of the present application;

FIG. 3 is a schematic structural diagram of an apparatus for configuring random access resources according to an embodiment of the present application;

FIG. 4 is a schematic structural diagram of another device for configuring random access resources 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 a terminal according to an embodiment of the present application.

Detailed ways

In the configuration of 5G NR, it includes the configuration of the parameter MSG1-FDM and the parameter ssb-perRACH-OccasionAndCB-PreamblesPerSSB. Among them, the parameter MSG1-FDM represents the number of ROs of the PRACH within a time period, and the parameter ssb-perRACH-OccasionAndCB-PreamblesPerSSB represents the number of synchronization signal blocks (SSB, Synchronization Signal Block) in each RO. If the parameter value of ssb-perRACH-OccasionAndCB-PreamblesPerSSB is less than 1, it means that there is more than one RO corresponding to one SSB, and the terminal can send the same preamble index (preamble index) on each RO, that is, multiple ROs can be selected The number of preamble indexes is the same as the number of preamble indexes that can be selected by one RO, and the terminal randomly selects an RO to initiate random access. That is to say, the random access position is added in the related art, but the preamble index resource is not added, which leads to an increase of the PRACH collision probability.

Based on this, in each embodiment of the present application, the base station sends a first indication to the terminal, and the first indication is used to instruct the terminal to initiate random access or perform handover on the first RO resource. Here, the first RO resource represents The frequency-division resource of the first preamble index. In this way, different terminals can frequency-division multiplex the same preamble index resource through the first indication, which realizes the resource expansion of the preamble index and reduces the PRACH collision probability when the terminal accesses.

The application will be further described in detail below in conjunction with the accompanying drawings and embodiments.

The embodiment of the present application provides a method for configuring random access resources, which is applied to a base station, as shown in FIG. 1 , the method includes:

Step 101: Send a first indication to a terminal.

Wherein, the first indication is used to instruct the terminal to initiate random access or perform handover on a first RO resource; the first RO resource represents a frequency-division resource of a first preamble index.

In an embodiment, the first indication is used to instruct the terminal to initiate random access on the first RO resource; the sending the first indication to the terminal includes:

The first indication is configured in SIB1.

Here, corresponding to the random access scenario, the base station configures the first indication in SIB1.

In an embodiment, the first indication includes a first FDM index; the first FDM index is used to characterize the first RO resource.

Here, the first FDM index is used to indicate the frequency division resource of the first preamble index, that is, the first RO resource, and the terminal selects to initiate random access on the first RO resource based on the indication of the base station. In this way, different terminals can select different frequency-division resources of the first preamble index for random access, thereby realizing capacity expansion of random access resources and reducing the collision probability of terminals during random access.

In an embodiment, the first FDM index is determined based on at least one of the following:

a terminal type of said terminal;

Collision probability of random access channel;

The channel condition of the random access channel.

In addition, the base station updates the first FDM index in real time according to the terminal type of the terminal, the collision probability of the random access channel and/or the channel condition of the random access channel. For example, when the collision probability of the random access channel is high, the first FDM index is updated so that the updated first FDM index indicates another frequency division resource of the first preamble index; when the channel of the random access channel When the condition is poor, the first FDM index is updated so that the updated first FDM index indicates a resource block with a better frequency domain in the resource corresponding to the first preamble index; according to the terminal type of the terminal, it is indicated for high-speed users and low-speed users Different RO resources.

In practical applications, after receiving the first indication sent by the base station, the terminal may initiate random access on the first RO resource indicated by the first indication, or may not initiate random access on the first RO resource indicated by the first indication. Instead, the resource corresponding to the first preamble index is selected for random access. In addition, the base station may issue the first indication through the SIB 1 in an explicit or implicit manner. Among them, the explicit indication includes that the base station directly configures the first FDM in SIB 1, and the implicit indication includes that the base station configures the first FDM in SIB 1. When the terminal selects the first RO resource indicated by the first indication When initiating random access, the terminal uses related information configured in SIB 1 to calculate the first RO resource. Based on this, in an embodiment, the configuring the first indication in SIB1 includes:

Configure at least one item of first setting information in SIB1.

Wherein, the terminal determines the first RO resource based on the at least one item of first setting information.

Specifically, the first setting information includes:

C-RNTI of the first cell;

the PCI of the first cell;

at least two value intervals of the first path loss;

The initial value and step size of the first path loss.

The first cell mentioned in the above first configuration information represents the cell where the terminal camps on in advance; the first path loss represents the path loss from the base station to the terminal measured by the terminal.

In actual application, the terminal can use C-RNTI and MSG1-FDM to take the modulus, and perform random access on the corresponding first RO resource according to the result of the modulus; or, the terminal can use PCI and MSG1-FDM to take the modulus, according to As a result of the modulus, random access is performed on the corresponding first RO resource; or, the path loss interval is pre-divided, and different path loss intervals correspond to different frequency division resources. As the path loss value increases, the corresponding frequency division The FDM positions of resources decrease from high to low, so that the terminal performs random access on the corresponding first RO resource according to the measured path loss from the base station to the terminal. In practical applications, the determination of the path loss interval may also be performed in the following manner: the base station configures the initial value of the path loss and the step size in SIB 1 for the terminal to determine the corresponding path loss interval. For example, the path loss range is [-130,-70], and there are 8 intervals every 10dB. When the corresponding path loss value is in the (,-130] interval, the terminal performs random access on the first RO resource. , when the corresponding path loss value is in the (-130,-120] interval, the terminal performs random access on the second RO resource, ..., and so on, when the corresponding path loss value is in the [-70,) interval , the terminal performs random access on the eighth RO resource. The above solutions can enable different terminals to access on different RO resources, reducing the collision probability of random access.

In an embodiment, the first indication is used to instruct the terminal to switch on the first RO resource; the sending the first indication to the terminal includes:

The first FDM index is configured in a random access channel dedicated configuration.

Wherein, the first FDM index is used to characterize the first RO resource.

Here, corresponding to the handover scenario, the base station configures the first FDM index representing the first RO resource in the random access channel dedicated configuration (RACH-ConfigDedicated). In actual application, the base station specifies to add FDM-INDEX used together with ssb-perRACH-Occasion to indicate the first RO resource in RACH-ConfigDedicated of non-contention random access (CFRA).

In an embodiment, the first FDM index is determined based on at least one of the following:

C-RNTI of the second cell accessed by the terminal;

The sub-band channel environment reported by the terminal;

The SRS reported by the terminal;

The power headroom reported by the terminal.

Specifically, the base station can use C-RNTI and MSG1-FDM to take the modulus, and assign the first FDM to the terminal according to the result of the modulus; or, the base station can also assign the first FDM to the terminal according to the subband channel environment reported by the terminal within a period of time. One FDM, so as to select the random access resource access of the optimal subband for the terminal; or, the base station obtains the full-band interference information according to the SRS information reported by the terminal, and selects a bandwidth with lower interference for the terminal to transmit the random access channel resources; or, the base station determines the approximate location of the terminal according to a Power Headroom Report (PHR, Power Headroom Report) reported by the terminal, and allocates the first FDM to the terminal.

In one embodiment, the method also includes:

Configure the first parameter of the terminal to be empty or the first parameter value; wherein,

The first parameter represents the totalNumberOfRA-Preambles parameter; the value of the first parameter represents the sum of all RO preamble indexes.

Here, the base station modifies the totalNumberOfRA-Preambles parameter from 64 to the sum of all RO preambleindex mumbers, or, if the totalNumberOfRA-Preambles parameter is not configured, configures the totalNumberOfRA-Preambles parameter as empty, so that the terminal still uses the previously selected RO resources to operate.

In practical applications, the allocation of the first FDM index starts from a low frequency and increases according to the frequency position.

Correspondingly, the embodiment of the present application also provides a method for configuring random access resources, which is applied to a terminal, as shown in FIG. 2 , the method includes:

Step 201: Receive a first indication sent by a base station.

Wherein, the first indication is used to instruct the terminal to initiate random access or perform handover on a first RO resource; the first RO resource represents a frequency-division resource of a first preamble index.

In an embodiment, the first indication is used to instruct the terminal to initiate random access on the first RO resource; the receiving the first indication sent by the base station includes:

receiving the SIB1 sent by the base station, and determining the first RO resource based on the first indication configured in the SIB1 by the base station.

Here, corresponding to the random access scenario, the base station configures the first indication in SIB1.

In an embodiment, the first indication includes a first FDM index; the first FDM index is used to characterize the first RO resource.

Here, the first FDM index is used to indicate the frequency division resource of the first preamble index, that is, the first RO resource, and the terminal selects to initiate random access on the first RO resource based on the indication of the base station. In this way, different terminals can select different frequency-division resources of the first preamble index for random access, thereby realizing capacity expansion of random access resources and reducing the collision probability of terminals during random access.

In an embodiment, the first FDM index is determined based on at least one of the following:

a terminal type of said terminal;

Collision probability of random access channel;

The channel condition of the random access channel.

In addition, the base station updates the first FDM index in real time according to the terminal type of the terminal, the collision probability of the random access channel and/or the channel condition of the random access channel. For example, when the collision probability of the random access channel is high, the first FDM index is updated so that the updated first FDM index indicates another frequency division resource of the first preamble index; when the channel of the random access channel When the condition is poor, the first FDM index is updated so that the updated first FDM index indicates a resource block with a better frequency domain in the resource corresponding to the first preamble index; according to the terminal type of the terminal, it is indicated for high-speed users and low-speed users Different RO resources.

In practical applications, after receiving the first indication sent by the base station, the terminal may initiate random access on the first RO resource indicated by the first indication, or may not initiate random access on the first RO resource indicated by the first indication. Instead, the resource corresponding to the first preamble index is selected for random access. In addition, the base station may issue the first indication through the SIB 1 in an explicit or implicit manner. Among them, the explicit indication includes that the base station directly configures the first FDM in SIB 1, and the implicit indication includes that the base station configures the first FDM in SIB 1. When the terminal selects the first RO resource indicated by the first indication When initiating random access, the terminal uses related information configured in SIB 1 to calculate the first RO resource. Based on this, in an embodiment, the determining the first RO resource based on the first indication configured by the base station in SIB 1 includes:

The first RO resource is determined based on at least one item of first setting information configured by the base station in SIB1.

Specifically, the first setting information includes the C-RNTI or PCI of the first cell; the first RO resource is determined based on at least one item of first setting information configured by the base station in SIB 1 ,include:

Determine the first RO resource based on a modulo result of the C-RNTI or PCI of the first cell and MSG1-FDM; wherein,

The first cell represents a cell where the terminal camps on in a preamble.

In actual application, the terminal can use C-RNTI and MSG1-FDM to take the modulus, and perform random access on the corresponding first RO resource according to the result of the modulus; or, the terminal can use PCI and MSG1-FDM to take the modulus, according to As a result of taking the modulus, random access is performed on the corresponding first RO resource. , the above solutions can enable different terminals to access on different RO resources, reducing the collision probability of random access.

In an embodiment, the first setting information includes at least two value intervals of the first path loss, or an initial value and a step size of the first path loss; At least one item of first setting information to determine the first RO resource, including:

Determine at least two value intervals of the first path loss based on the first setting information, and sequentially initiate random access on resources corresponding to the value intervals.

Here, the path loss intervals are pre-divided, and different path loss intervals correspond to different frequency division resources. As the path loss value increases, the FDM positions of the corresponding frequency division resources decrease from high to low. For the path loss to the terminal, random access is performed on the corresponding first RO resource. In practical applications, the determination of the path loss interval may also be performed in the following manner: the base station configures the initial value of the path loss and the step size in SIB 1 for the terminal to determine the corresponding path loss interval. For example, the path loss range is [-130,-70], and there are 8 intervals every 10dB. When the corresponding path loss value is in the (,-130] interval, the terminal performs random access on the first RO resource. , when the corresponding path loss value is in the (-130,-120] interval, the terminal performs random access on the second RO resource, ..., and so on, when the corresponding path loss value is in the [-70,) interval , the terminal performs random access on the eighth RO resource. The above solutions can enable different terminals to access on different RO resources, reducing the collision probability of random access.

In an embodiment, the first indication is used to instruct the terminal to switch on the first RO resource; the receiving the first indication sent by the base station includes:

Receiving that the base station configures a first FDM index in a random access channel dedicated configuration; the first FDM index is used to characterize the first RO resource. ,

Here, corresponding to the handover scenario, the base station configures the first FDM index representing the first RO resource in the RACH-ConfigDedicated. In actual application, the base station specifies that the FDM-INDEX used together with ssb-perRACH-Occasion be added to RACH-ConfigDedicated of CFRA to indicate the first RO resource.

In an embodiment, the first FDM index is determined based on at least one of the following:

C-RNTI of the second cell accessed by the terminal;

The sub-band channel environment reported by the terminal;

The SRS reported by the terminal;

The power headroom reported by the terminal.

In this embodiment of the present application, the base station sends a first indication to the terminal, and the first indication is used to instruct the terminal to initiate random access or perform handover on the first RO resource, where the first RO resource represents the first preamble index frequency division resources. In this way, different terminals can frequency-division multiplex the same preamble index resource through the first indication, which realizes the resource expansion of the preamble index, reduces the PRACH collision probability when the terminal accesses, and satisfies the requirements of large capacity and/or low Latency business requirements.

For example, in scenarios such as subway or high-speed rail, when large-capacity users switch at the same time, multiple non-competitive preamble index resources can be allocated at the same time, and the preamble index values of these non-competitive preamble index resources are the same, but The FDM indexes are inconsistent, so that large-capacity users in the scene can use the same preamble index to complete random access on different frequency domain resources in the same time domain resource.

In order to implement the method of the embodiment of the present application, the embodiment of the present application also provides a device for configuring random access resources, which is set on the base station, as shown in Figure 3, the device includes:

The first sending unit 301 is configured to send a first indication to the terminal; wherein,

The first indication is used to instruct the terminal to initiate random access or perform handover on a first RO resource; the first RO resource represents a frequency-division resource of a first preamble index.

Wherein, in an embodiment, the first indication is used to instruct the terminal to initiate random access on the first RO resource; the first sending unit 301 is configured to:

The first indication is configured in SIB1.

In an embodiment, the first indication includes a first FDM index; the first FDM index is used to characterize the first RO resource.

In an embodiment, the first FDM index is determined based on at least one of the following:

a terminal type of said terminal;

Collision probability of random access channel;

The channel condition of the random access channel.

In an embodiment, the first sending unit 301 is configured to:

Configure at least one item of first setting information in SIB 1; where,

The terminal determines the first RO resource based on the at least one item of first setting information.

In an embodiment, the first setting information includes:

C-RNTI of the first cell;

the PCI of the first cell;

at least two value intervals of the first path loss;

The initial value and step size of the first path loss; where,

The first cell represents a cell where the terminal resides in a preamble; the first path loss represents a path loss measured by the terminal from the base station to the terminal.

In an embodiment, the first indication is used to instruct the terminal to switch on the first RO resource; the first sending unit 301 is configured to:

A first FDM index is configured in a random access channel dedicated configuration; the first FDM index is used to characterize the first RO resource.

In an embodiment, the first FDM index is determined based on at least one of the following:

C-RNTI of the second cell accessed by the terminal;

The sub-band channel environment reported by the terminal;

The SRS reported by the terminal;

The power headroom reported by the terminal.

In one embodiment, the device also includes:

The first configuration unit is configured to configure the first parameter of the terminal to be empty or the first parameter value; wherein,

The first parameter represents the totalNumberOfRA-Preambles parameter; the value of the first parameter represents the sum of all RO preamble indexes.

In practical application, the first sending unit 301 may be realized by a communication interface combined with a processor in the device for configuring random access resources; and the first configuration unit may be realized by a processor in the device for configuring random access resources.

In order to implement the method on the terminal side of the embodiment of the present application, the embodiment of the present application also provides a device for configuring random access resources, which is set on the terminal, as shown in FIG. 4 , the device includes:

The first receiving unit 401 is configured to receive the first indication sent by the base station; wherein,

The first indication is used to instruct the terminal to initiate random access or perform handover on a first RO resource; the first RO resource represents a frequency-division resource of a first preamble index.

Wherein, in an embodiment, the first indication is used to instruct the terminal to initiate random access on the first RO resource; the first receiving unit 401 is configured to:

receiving the SIB1 sent by the base station, and determining the first RO resource based on the first indication configured in the SIB1 by the base station.

In an embodiment, the first indication includes a first FDM index; the first FDM index is used to characterize the first RO resource.

In an embodiment, the first FDM index is determined based on at least one of the following:

a terminal type of said terminal;

Collision probability of random access channel;

The channel condition of the random access channel.

In an embodiment, the first receiving unit 401 is configured to:

The first RO resource is determined based on at least one item of first setting information configured by the base station in SIB1.

In an embodiment, the first setting information includes the C-RNTI or PCI of the first cell; the first receiving unit 401 is configured to:

Determine the first RO resource based on a modulo result of the C-RNTI or PCI of the first cell and MSG1-FDM; wherein,

The first cell represents a cell where the terminal camps on in a preamble.

In an embodiment, the first setting information includes at least two value intervals of the first path loss, or an initial value and a step size of the first path loss; the first receiving unit 401 is configured to:

Determine at least two value intervals of the first path loss based on the first setting information, and sequentially initiate random access on resources corresponding to the value intervals.

In an embodiment, the first indication is used to instruct the terminal to switch on the first RO resource; the first receiving unit 401 is configured to:

Receiving that the base station configures a first FDM index in a random access channel dedicated configuration; the first FDM index is used to characterize the first RO resource.

In an embodiment, the first FDM index is determined based on at least one of the following:

C-RNTI of the second cell accessed by the terminal;

The sub-band channel environment reported by the terminal;

The SRS reported by the terminal;

The power headroom reported by the terminal.

In practical application, the first receiving unit 401 may be implemented by combining a processor with a communication interface in the device for configuring random access resources.

It should be noted that when the device for configuring random access resources provided by the above-mentioned embodiments configures random access resources, it only uses the division of the above-mentioned program modules as an example for illustration. In practical applications, the above-mentioned processes can be The allocation is done by different program modules, that is, the internal structure of the device is divided into different program modules to complete all or part of the above-described processing. In addition, the device for configuring random access resources provided in the above embodiments and the embodiment of the method for configuring random access resources belong to the same concept, and the specific implementation process thereof is detailed in the method embodiment, and will not be repeated here.

Based on the hardware implementation of the above program modules, and in order to implement the method on the base station side of the embodiment of the present application, the embodiment of the present application also provides a base station. As shown in FIG. 5 , the base station 500 includes:

The first communication interface 501 is capable of exchanging information with other network nodes;

The first processor 502 is connected to the first communication interface 501 to implement information exchange with other network nodes, and is used to execute the methods provided by one or more technical solutions on the base station side when running computer programs. Instead, the computer program is stored on the first memory 503 .

Specifically, the first communication interface 501 is used for:

sending a first indication to the terminal; wherein,

The first indication is used to instruct the terminal to initiate random access or perform handover on a first RO resource; the first RO resource represents a frequency-division resource of a first preamble index.

Wherein, in an embodiment, the first indication is used to instruct the terminal to initiate random access on the first RO resource; the first processor 502 is configured to:

The first indication is configured in SIB1.

In an embodiment, the first indication includes a first FDM index; the first FDM index is used to characterize the first RO resource.

In an embodiment, the first FDM index is determined based on at least one of the following:

a terminal type of said terminal;

Collision probability of random access channel;

The channel condition of the random access channel.

In one embodiment, the first processor 502 is configured to:

Configure at least one item of first setting information in SIB 1; where,

The terminal determines the first RO resource based on the at least one item of first setting information.

In an embodiment, the first setting information includes:

C-RNTI of the first cell;

the PCI of the first cell;

at least two value intervals of the first path loss;

The initial value and step size of the first path loss; where,

The first cell represents a cell where the terminal resides in a preamble; the first path loss represents a path loss measured by the terminal from the base station to the terminal.

In an embodiment, the first indication is used to instruct the terminal to switch on the first RO resource; the first processor 502 is configured to:

A first FDM index is configured in a random access channel dedicated configuration; the first FDM index is used to characterize the first RO resource.

In an embodiment, the first FDM index is determined based on at least one of the following:

C-RNTI of the second cell accessed by the terminal;

The sub-band channel environment reported by the terminal;

The SRS reported by the terminal;

The power headroom reported by the terminal.

In an embodiment, the first processor 502 is further configured to:

Configure the first parameter of the terminal to be empty or the first parameter value; wherein,

The first parameter represents the totalNumberOfRA-Preambles parameter; the value of the first parameter represents the sum of all RO preamble indexes.

It should be noted that: the specific processing procedures of the first processor 502 and the first communication interface 501 can be understood with reference to the above methods.

Of course, in practical applications, various components in the base station 500 are coupled together through the bus system 504 . It can be understood that the bus system 504 is used to realize connection and communication between these components. In addition to the data bus, the bus system 504 also includes a power bus, a control bus and a status signal bus. However, for clarity of illustration, the various buses are labeled as bus system 504 in FIG. 5 .

The first memory 503 in the embodiment of the present application is used to store various types of data to support the operation of the base station 500 . Examples of such data include: any computer programs for operating on base station 500 .

The methods disclosed in the foregoing embodiments of the present application may be applied to the first processor 502 or implemented by the first processor 502 . The first processor 502 may be an integrated circuit chip, which has a signal processing capability. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the first processor 502 or an instruction in the form of software. The aforementioned first processor 502 may be a general-purpose processor, a digital signal processor (DSP, Digital Signal Processor), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. The first processor 502 may implement or execute various methods, steps, and logic block diagrams disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium, and the storage medium is located in the first memory 503, and the first processor 502 reads the information in the first memory 503, and completes the steps of the foregoing method in combination with its hardware.

In an exemplary embodiment, the base station 500 may be implemented by one or more Application Specific Integrated Circuits (ASIC, Application Specific Integrated Circuit), DSP, Programmable Logic Device (PLD, ProgrammableLogic Device), Complex Programmable Logic Device (CPLD, Complex Programmable Logic Device), field-programmable gate array (FPGA, Field-Programmable Gate Array), general-purpose processor, controller, microcontroller (MCU, Micro Controller Unit), microprocessor (Microprocessor), or other electronic components to achieve , used to execute the aforementioned method.

Based on the hardware implementation of the above program modules, and in order to implement the method on the terminal side of the embodiment of the present application, the embodiment of the present application also provides a terminal, as shown in FIG. 6 , the terminal 600 includes:

The second communication interface 601 is capable of exchanging information with other network nodes;

The second processor 602 is connected to the second communication interface 601 to implement information interaction with other network nodes, and is used to execute the methods provided by one or more technical solutions on the terminal side when running a computer program. Instead, the computer program is stored on the second memory 603 .

Specifically, the second communication interface 601 is used for:

receiving the first indication sent by the base station; wherein,

The first indication is used to instruct the terminal to initiate random access or perform handover on a first RO resource; the first RO resource represents a frequency-division resource of a first preamble index.

Wherein, in an embodiment, the first indication is used to instruct the terminal to initiate random access on the first RO resource; the second communication interface 601 is used to:

receiving the SIB1 sent by the base station;

The second processor 602 is configured to:

determining the first RO resource based on the first indication configured by the base station in SIB1.

In an embodiment, the first indication includes a first FDM index; the first FDM index is used to characterize the first RO resource.

In an embodiment, the first FDM index is determined based on at least one of the following:

a terminal type of said terminal;

Collision probability of random access channel;

The channel condition of the random access channel.

In an embodiment, the second processor 602 is configured to:

The first RO resource is determined based on at least one item of first setting information configured by the base station in SIB1.

In an embodiment, the first setting information includes the C-RNTI or PCI of the first cell; the second processor 602 is configured to:

Determine the first RO resource based on a modulo result of the C-RNTI or PCI of the first cell and MSG1-FDM; wherein,

The first cell represents a cell where the terminal camps on in a preamble.

In an embodiment, the first setting information includes at least two value intervals of the first path loss, or an initial value and a step size of the first path loss; the second processor 602 is configured to:

Determine at least two value intervals of the first path loss based on the first setting information, and sequentially initiate random access on resources corresponding to the value intervals.

In an embodiment, the first indication is used to instruct the terminal to switch on the first RO resource; the second communication interface 601 is used to:

Receiving that the base station configures a first FDM index in a random access channel dedicated configuration; the first FDM index is used to characterize the first RO resource.

In an embodiment, the first FDM index is determined based on at least one of the following:

C-RNTI of the second cell accessed by the terminal;

The sub-band channel environment reported by the terminal;

The SRS reported by the terminal;

The power headroom reported by the terminal.

It should be noted that: the specific processing process of the second processor 602 and the second communication interface 601 can be understood with reference to the above method.

Of course, in actual application, various components in the terminal 600 are coupled together through the bus system 604 . It can be understood that the bus system 604 is used to realize connection and communication between these components. In addition to the data bus, the bus system 604 also includes a power bus, a control bus and a status signal bus. However, for clarity of illustration, the various buses are labeled as bus system 604 in FIG. 6 .

The second memory 603 in the embodiment of the present application is used to store various types of data to support the operation of the terminal 600 . Examples of such data include: any computer program for operating on terminal 600 .

The methods disclosed in the foregoing embodiments of the present application may be applied to the second processor 602 or implemented by the second processor 602 . The second processor 602 may be an integrated circuit chip, which has a signal processing capability. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the second processor 602 or an instruction in the form of software. The aforementioned second processor 602 may be a general-purpose processor, DSP, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. The second processor 602 may implement or execute various methods, steps, and logic block diagrams disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium, and the storage medium is located in the second memory 603, and the second processor 602 reads the information in the second memory 603, and completes the steps of the foregoing method in combination with its hardware.

In an exemplary embodiment, the terminal 600 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general-purpose processors, controllers, MCUs, Microprocessors, or other electronic components for performing the aforementioned methods.

It can be understood that the memory (the first memory 503 and the second memory 603 ) in this embodiment of the present application may be a volatile memory or a nonvolatile memory, and may also include both volatile and nonvolatile memories. Wherein, the non-volatile memory can be a read-only memory (ROM, Read Only Memory), a programmable read-only memory (PROM, Programmable Read-Only Memory), an erasable programmable read-only memory (EPROM, Erasable Programmable Read-Only Memory) Memory), Electrically Erasable Programmable Read-Only Memory (EEPROM, Electrically Erasable Programmable Read-Only Memory), Magnetic Random Access Memory (FRAM, ferromagnetic random access memory), Flash Memory (Flash Memory), magnetic surface memory, optical disc, Or CD-ROM (Compact Disc Read-Only Memory); magnetic surface storage can be disk storage or tape storage. The volatile memory may be random access memory (RAM, Random Access Memory), which is used as an external cache. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM, Static Random Access Memory), Synchronous Static Random Access Memory (SSRAM, Synchronous Static Random Access Memory), Dynamic Random Access Memory ( DRAM, Dynamic Random Access Memory), Synchronous Dynamic Random Access Memory (SDRAM, Synchronous Dynamic Random Access Memory), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM, Double Data Rate Synchronous Dynamic Random Access Memory), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM, Enhanced Synchronous Dynamic Random Access Memory), Synchronous Link Dynamic Random Access Memory (SLDRAM, SyncLink Dynamic Random Access Memory), Direct Memory Bus Random Access Memory (DRRAM, Direct Rambus Random Access Memory). The memories described in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

In an exemplary embodiment, the embodiment of the present application also provides a storage medium, that is, a computer storage medium, specifically a computer-readable storage medium, for example, including a first memory 503 storing a computer program, and the above-mentioned computer program can be used by the base station 500 The first processor 502 executes to complete the steps described in the aforementioned base station side method. Another example includes a second memory 603 storing a computer program, and the above computer program can be executed by the second processor 602 of the terminal 600 to complete the steps described in the aforementioned terminal side method. The computer-readable storage medium may be memory such as FRAM, ROM, PROM, EPROM, EEPROM, FlashMemory, magnetic surface memory, optical disk, or CD-ROM.

It should be noted that "first", "second", etc. are used to distinguish similar objects, or indicate specific objects, and are not necessarily used to describe a specific order or sequence.

The term "and/or" in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and/or B can mean: A exists alone, A and B exist simultaneously, and there exists alone B these three situations. In addition, the term "at least one" herein means any combination of any one or more of at least two of a plurality, for example, including at least one of A, B, and C, which may mean including from A, Any one or more elements selected from the set formed by B and C.

In addition, the technical solutions described in the embodiments of the present application may be combined arbitrarily if there is no conflict.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the protection scope of the present application.

Claims (25)

1. A method for configuring random access resources, characterized in that it is applied to a base station, comprising: sending a first indication to the terminal; wherein, The first indication is used to instruct the terminal to initiate random access or perform handover on RO resources at a first random access opportunity; the first RO resources represent frequency-division resources of a first preamble index. 2. The method according to claim 1, wherein the first indication is used to instruct the terminal to initiate random access on the first RO resource; the sending the first indication to the terminal comprises: The first indication is configured in a system information block SIB1. 3. The method according to claim 2, wherein the first indication comprises a first frequency division multiplexing (FDM) index; the first FDM index is used to characterize the first RO resource. 4. The method according to claim 3, wherein the first FDM index is determined based on at least one of the following: a terminal type of said terminal; Collision probability of random access channel; The channel condition of the random access channel. 5. The method according to claim 2, wherein the configuring the first indication in SIB1 comprises: Configure at least one item of first setting information in SIB 1; where, The terminal determines the first RO resource based on the at least one item of first setting information. 6. The method according to claim 5, wherein the first setting information includes: The cell radio network temporary identifier C-RNTI of the first cell; The physical cell identity PCI of the first cell; at least two value intervals of the first path loss; The initial value and step size of the first path loss; where, The first cell represents a cell where the terminal resides in a preamble; the first path loss represents a path loss measured by the terminal from the base station to the terminal. 7. The method according to claim 1, wherein the first indication is used to instruct the terminal to switch on the first RO resource; the sending the first indication to the terminal comprises: A first FDM index is configured in a random access channel dedicated configuration; the first FDM index is used to characterize the first RO resource. 8. The method according to claim 7, wherein the first FDM index is determined based on at least one of the following: C-RNTI of the second cell accessed by the terminal; The sub-band channel environment reported by the terminal; The channel sounding reference signal SRS reported by the terminal; The power headroom reported by the terminal. 9. The method according to claim 7 or 8, wherein the method further comprises: Configure the first parameter of the terminal to be empty or the first parameter value; wherein, The first parameter value is characterized as the sum of all RO preamble indices. 10. A random access resource configuration method, characterized in that it is applied to a terminal, comprising: receiving the first indication sent by the base station; wherein, The first indication is used to instruct the terminal to initiate random access or perform handover on a first RO resource; the first RO resource represents a frequency-division resource of a first preamble index. 11. The method according to claim 10, wherein the first indication is used to instruct the terminal to initiate random access on the first RO resource; the receiving the first indication sent by the base station includes: receiving the SIB1 sent by the base station, and determining the first RO resource based on the first indication configured in the SIB1 by the base station. 12. The method according to claim 11, wherein the first indication comprises a first FDM index; and the first FDM index is used to characterize the first RO resource. 13. The method according to claim 12, wherein the first FDM index is determined based on at least one of the following: a terminal type of said terminal; Collision probability of random access channel; The channel condition of the random access channel. 14. The method according to claim 11, wherein the determining the first RO resource based on the first indication configured by the base station in SIB1 comprises: The first RO resource is determined based on at least one item of first setting information configured by the base station in SIB1. 15. The method according to claim 14, wherein the first setting information includes the C-RNTI or PCI of the first cell; the at least one first setting information configured in SIB 1 based on the base station Setting information to determine the first RO resource, including: Determine the first RO resource based on a modulo result of the C-RNTI or PCI of the first cell and MSG1-FDM; wherein, The first cell represents a cell where the terminal camps on in a preamble. 16. The method according to claim 14, wherein the first setting information includes at least two value intervals of the first path loss, or an initial value and a step size of the first path loss; The at least one item of first setting information configured by the base station in SIB 1 to determine the first RO resource includes: Determine at least two value intervals of the first path loss based on the first setting information, and sequentially initiate random access on resources corresponding to the value intervals. 17. The method according to claim 10, wherein the first indication is used to instruct the terminal to switch on the first RO resource; the receiving the first indication sent by the base station includes: Receiving that the base station configures a first FDM index in a random access channel dedicated configuration; the first FDM index is used to characterize the first RO resource. 18. The method according to claim 17, wherein the first FDM index is determined based on at least one of the following: C-RNTI of the second cell accessed by the terminal; The sub-band channel environment reported by the terminal; The SRS reported by the terminal; The power headroom reported by the terminal. 19. A device for configuring random access resources, comprising: The first sending unit is configured to send the first indication to the terminal; wherein, The first indication is used to instruct the terminal to initiate random access or perform handover on a first RO resource; the first RO resource represents a frequency-division resource of a first preamble index. 20. A device for configuring random access resources, comprising: The first receiving unit is configured to receive the first indication sent by the base station; wherein, The first indication is used to instruct the terminal to initiate random access or perform handover on a first RO resource; the first RO resource represents a frequency-division resource of a first preamble index. 21. A base station, comprising: a first processor and a first communication interface; wherein, The first communication interface is configured to send a first indication to the terminal; wherein, The first indication is used to instruct the terminal to initiate random access or perform handover on a first RO resource; the first RO resource represents a frequency-division resource of a first preamble index. 22. A terminal, characterized by comprising: a second processor and a second communication interface; wherein, The second communication interface is used to receive the first indication sent by the base station; wherein, The first indication is used to instruct the terminal to initiate random access or perform handover on a first RO resource; the first RO resource represents a frequency-division resource of a first preamble index. 23. A base station, characterized by comprising: a first processor and a first memory for storing a computer program that can run on the processor, Wherein, when the first processor is used to run the computer program, it executes the steps of the method according to any one of claims 1-9. 24. A terminal, characterized by comprising: a second processor and a second memory for storing computer programs that can run on the processor, Wherein, when the second processor is used to run the computer program, it executes the steps of the method according to any one of claims 10-18. 25. A storage medium, on which a computer program is stored, characterized in that, when the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 9 are realized, or the steps of any one of claims 10 to 18 are realized. A step of said method.

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