A channel configuration method, program product, medium and electronic device

Abstract

Embodiments of the present application provide a channel configuration method, program product, storage medium and electronic device. The method comprises: receiving an access request message sent by a satellite terminal, wherein the access request message carries indication information for indicating terminal priority or capability; determining a broadcast alarm channel (BACH) cycle parameter of the satellite terminal based on the access request message and a preset strategy; the BACH cycle parameter is used to override a default cycle parameter obtained from a broadcast control channel; and sending signaling carrying the BACH cycle parameter to the satellite terminal to instruct the satellite terminal to listen to the BACH during a connected state using the BACH cycle parameter. The technical solution of the present application can effectively solve the problem that the GMR system broadcast alarm channel (BACH) cannot be configured differently for terminals with different priorities or capabilities in the prior art, resulting in high alarm delay for high-priority terminals and high energy consumption for low-power terminals.

Description

Technical Field

[0001] This application relates to the field of communication technology, and more specifically, to a channel configuration method, a program product, a medium, and an electronic device. Background Technology

[0002] In the GMR-1 3G standard, the Broadcast Alarm Channel (BACH) is a downlink common control channel used to send high-priority alarms or paging information to terminals under adverse channel conditions. It employs a highly robust modulation and coding scheme to ensure transmission reliability. Currently, BACH scheduling parameters (such as burst cycles) are configured through the BA-PA-MFRMS parameter in system messages (such as SI3) broadcast on the Broadcast Control Channel (BCCH). This parameter uses 3 bits to represent seven different cycle configurations, each value corresponding to a multiple of a multiframe. This configuration is uniformly effective across the entire beam or cell, meaning all terminals listen to the same BACH cycle.

[0003] However, existing BACH parameter configuration methods employ a uniform "one-size-fits-all" approach, failing to differentiate configurations based on terminal priority or service capabilities. This leads to two drawbacks in practical applications: firstly, for high-priority terminals such as those used for emergency rescue, a fixed BACH cycle may result in high alarm latency, failing to meet real-time requirements; secondly, for low-power IoT terminals, a fixed listening cycle may cause excessive energy consumption due to frequent wake-up listening, shortening device battery life. Therefore, in existing GMR (GEO-Mobile Radio interface) systems, the broadcast alarm channel BACH cannot be differentiated for terminals with different priorities or capabilities, resulting in high alarm latency for high-priority terminals and high energy consumption for low-power terminals. Summary of the Invention

[0004] This application provides a channel configuration method and apparatus, program product, and storage medium to at least solve the problem in the prior art that the broadcast alarm channel BACH of GMR system cannot be configured differently for terminals with different priorities or capabilities, resulting in high alarm latency for high-priority terminals or high power consumption for low-power terminals.

[0005] According to one embodiment of this application, a channel configuration method is provided, the method comprising:

[0006] Receive an access request message sent by a satellite terminal, wherein the access request message carries indication information for indicating the terminal priority or capability;

[0007] Based on the access request message and the preset strategy, a decision is made to generate the BACH period parameters for the satellite terminal; the BACH period parameters are used to override the default period parameters obtained from the broadcast control channel.

[0008] A signaling message carrying the BACH period parameter is sent to the satellite terminal to instruct the satellite terminal to listen to the BACH using the BACH period parameter during the connected state.

[0009] Furthermore, the signaling includes at least one of the following: an immediate assignment message sent via an access grant channel; or an RRC connection establishment message sent via a dedicated control channel.

[0010] Furthermore, the indication information includes at least one of priority indication or capability indication; the priority indication is used to identify the satellite terminal as a high-priority terminal, which is used in emergency rescue scenarios; the capability indication is used to identify the satellite terminal as a low-power IoT terminal or an enhanced coverage terminal.

[0011] Furthermore, the step of generating the broadcast alarm channel (BACH) period parameter of the satellite terminal based on the access request message and the preset strategy includes: if the satellite terminal is identified as a high-priority terminal, then the BACH period parameter is configured to a first value that is less than the default period parameter; if the satellite terminal is identified as a low-power IoT terminal, then the BACH period parameter is configured to a second value that is greater than the default period parameter.

[0012] Furthermore, the encoding method of the dedicated BACH periodic parameter is the same as the parameter encoding method in the system message SI3 of the broadcast control channel.

[0013] Furthermore, the BACH periodic parameter also includes an activation time; the activation time is used to indicate the moment when the satellite terminal begins to apply the BACH periodic parameter.

[0014] Furthermore, the access request message is a Random Access Channel (RACH) request message; the RACH request message includes a newly extended establishment reason field, and the indication information is carried through a specific enumeration value in the establishment reason field.

[0015] According to yet another embodiment of this application, a computer program product is also provided, including a computer program that, when executed by a processor, implements the steps in any of the above method embodiments.

[0016] According to yet another embodiment of this application, a computer-readable storage medium is also provided, wherein a computer program is stored therein, and the computer program is configured to perform the steps in any of the above method embodiments when it is run.

[0017] According to yet another embodiment of this application, an electronic device is also provided, including a memory and a processor, wherein the memory stores a computer program and the processor is configured to run the computer program to perform the steps in any of the above method embodiments.

[0018] The embodiments described above in this application receive an access request message sent by a satellite terminal, the access request message carrying indication information for indicating the terminal's priority or capability; based on the access request message and a preset strategy, a decision is made to generate the BACH period parameters for the satellite terminal's broadcast alarm channel; the BACH period parameters are used to override the default period parameters obtained from the broadcast control channel; signaling carrying the BACH period parameters is sent to the satellite terminal to instruct the satellite terminal to use the BACH period parameters to listen to the BACH during the connected state, thereby solving the problem in the prior art that the broadcast alarm channel BACH of the GMR system cannot be configured differently for terminals with different priorities or capabilities, resulting in high alarm latency for high-priority terminals or high power consumption for low-power terminals. This achieves the effect of realizing differentiated BACH period configuration for terminal priority or capability, reducing alarm latency for high-priority terminals and reducing power consumption for low-power terminals, thereby improving the overall communication efficiency of the system and the terminal's battery life. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the hardware environment for a channel configuration method according to an embodiment of this application;

[0020] Figure 2 This is a flowchart of a channel configuration method according to an embodiment of this application;

[0021] Figure 3 This is a structural block diagram of an electronic device according to an embodiment of this application. Detailed Implementation

[0022] The embodiments of this application will be described in detail below with reference to the accompanying drawings and examples.

[0023] It should be noted that the terms "first," "second," etc., in the specification, claims, and drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0024] The methods and embodiments provided in this application can be executed on a server device or a similar computing device. Taking running on a server device as an example, Figure 1This is a schematic diagram of the hardware environment for a channel configuration method according to an embodiment of this application. Figure 1 As shown, the server device may include one or more ( Figure 1 Only one is shown in the image. A processor 102 (which may include, but is not limited to, a microprocessor MCU or a programmable logic device FPGA, etc.) and a memory 104 for storing data are also shown. The server device may further include a transmission device 106 for communication functions and an input / output device 108. Those skilled in the art will understand that... Figure 1 The structure shown is for illustrative purposes only and does not limit the structure of the server equipment described above. For example, the server equipment may also include components that are more... Figure 1 The more or fewer components shown, or having the same Figure 1 The different configurations shown.

[0025] The memory 104 can be used to store computer programs, such as application software programs and modules, like the computer program corresponding to a channel configuration method in this embodiment. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, thus implementing the aforementioned method. The memory 104 may include high-speed random access memory and non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 104 may further include memory remotely located relative to the processor 102, and these remote memories can be connected to server devices via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0026] The transmission device 106 is used to receive or send data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider for the server device. In one example, the transmission device 106 includes a Network Interface Controller (NIC), which can connect to other network devices via a base station to communicate with the Internet. In another example, the transmission device 106 may be a Radio Frequency (RF) module used for wireless communication with the Internet.

[0027] This embodiment provides a channel configuration method. Figure 2 This is a flowchart of a channel configuration method according to an embodiment of this application, such as... Figure 2 As shown, the process includes the following steps:

[0028] Step S202: Receive an access request message sent by a satellite terminal, wherein the access request message carries indication information for indicating the terminal priority or capability;

[0029] In this embodiment, the satellite terminal refers to user equipment used in GMR-1 3G standards and similar satellite communication networks. According to this application, the terminal has the function of carrying priority or capability indication information in the Random Access Channel (RACH) request message, supports parsing dedicated BACH configuration parameters issued by the network, can dynamically switch the BACH listening period, and fall back to the default parameters after connection release. Terminal priority is the service level identifier of the satellite terminal in the network. Priority is used to distinguish terminals with different service requirements; for example, "high-priority terminals" (such as emergency rescue terminals) require lower alarm latency, and the network shortens the BACH period accordingly; ordinary terminals follow the default configuration. Capabilities can describe the terminal's power consumption characteristics or coverage enhancement requirements; for example, "low-power IoT terminals" need to reduce energy consumption, and the network extends the BACH period accordingly to reduce the number of listening operations, or "enhanced coverage terminals" are used in scenarios with extremely poor signal conditions.

[0030] In this embodiment, the network-side device (such as a satellite network) receives an access request message from a satellite terminal. This message explicitly carries indication information to indicate the terminal's priority or capabilities. By parsing this access request message, the network side can obtain the terminal's declared identity attributes or functional characteristics, i.e., the terminal's priority level or specific capability type. This provides direct data and a basis for decision-making regarding subsequent resource allocation and parameter configuration based on the terminal's differentiated needs.

[0031] Optionally, the indication information includes at least one of priority indication or capability indication; the priority indication is used to identify the satellite terminal as a high-priority terminal, which is used in emergency rescue scenarios; the capability indication is used to identify the satellite terminal as a low-power IoT terminal or an enhanced coverage terminal.

[0032] In this embodiment, the indication information carried in the access request message specifically includes at least one of priority indication or capability indication. The priority indication is specifically used to identify that the satellite terminal belongs to a high-priority terminal in an emergency rescue scenario, while the capability indication is used to identify that the satellite terminal is a low-power IoT terminal or an enhanced coverage terminal. This design enables the network side to accurately identify the specific application scenario of the terminal according to a preset strategy after receiving the access request. For example, when the priority indication is detected, it is determined that the terminal has extremely high requirements for the real-time performance of alarm information, thereby generating a shorter Broadcast Alarm Channel (BACH) period parameter to shorten the listening interval and reduce latency. When the capability indication is detected, it is determined that the terminal is sensitive to power consumption, thereby generating a longer BACH period parameter to reduce the number of wake-ups and save power.

[0033] Step S204: Based on the access request message and the preset strategy, a decision is made to generate the BACH period parameters for the satellite terminal's broadcast alarm channel; the BACH period parameters are used to override the default period parameters obtained from the broadcast control channel.

[0034] In this embodiment, the preset strategy can be a decision rule built into the satellite network or adopted by the connection strategy control function. This strategy determines whether to generate differentiated BACH period parameters based on the received terminal priority or capability indication, and determines specific parameter values ​​(e.g., high priority corresponds to a short period for low latency, low power consumption corresponds to a long period for power saving). The BACH period parameter is a configuration value that determines the time interval for the satellite terminal to listen to the Broadcast Alarm Channel (BACH). This application includes two types: one is a default period parameter (BA-PA-MFRMS) broadcast via BCCH and applicable to the entire cell; the other is a terminal-specific BACH period parameter dynamically generated by the network for a specific terminal, specifically used to override the default parameter. The default period parameter is a unified BACH burst period configuration broadcast by the satellite network via the BCCH channel and applicable to all terminals within the cell. Before connection establishment or without a dedicated configuration, the satellite terminal listens to the BACH based on this parameter; when the network issues a dedicated configuration, this default parameter is overridden by the dedicated parameter during the connected state.

[0035] In this embodiment, the BACH period parameters for the satellite terminal are first generated based on the access request message and a preset policy. Specifically, the method utilizes the access request message received by the satellite network, which contains terminal priority or capability indication information, and combines it with the differentiated configuration rules formulated by the network-side built-in or connected policy control functions for parsing and processing. By identifying specific identifiers in the access request message (such as high-priority terminals or low-power IoT terminals), the network side determines the optimal BACH burst period for that specific terminal according to the preset policy, thereby generating terminal-specific BACH period parameters to overwrite the default configuration, realizing differentiated alarm service configuration for terminals with different priorities or capabilities. After receiving the dedicated BACH configuration parameters from the network side, the satellite terminal performs a parameter overwrite operation. Specifically, it uses the received BACH period parameters as the currently effective configuration, replacing the default BACH period parameters previously obtained and stored from the Broadcast Control Channel (BCCH). This process ensures that during the connected state, the terminal no longer listens according to the default configuration of the network's unified broadcast, but strictly follows the dedicated BACH periodic parameters that the network decides and issues individually for specific terminals, thereby achieving terminal-level dynamic overlay of the default configuration.

[0036] Step S206: Send a signaling message carrying BACH period parameters to the satellite terminal to instruct the satellite terminal to listen to BACH using BACH period parameters during the connected state.

[0037] Optionally, the signaling includes at least one of the following: an immediate assignment message sent via an access grant channel; or an RRC connection establishment message sent via a dedicated control channel.

[0038] In this embodiment, the satellite network sends a signaling command to the satellite terminal, which explicitly carries the BACH period parameter. Through this signaling interaction, the satellite network conveys specific configuration instructions to the satellite terminal. Its core function is to instruct the satellite terminal to use the sent BACH period parameter to listen to the BACH while in a connected state, thereby realizing a specific configuration of the BACH listening period for the terminal.

[0039] Applying the technical solution of this embodiment, an access request message sent by a satellite terminal is first received. This message carries indication information for indicating the terminal's priority or capabilities, thereby obtaining the terminal's differentiated characteristics. Subsequently, based on the indication information and a preset strategy, a decision is made to generate a broadcast alarm channel (BACH) period parameter for the satellite terminal, realizing the identification and adaptation of different terminal characteristics. Then, a signaling message carrying the BACH period parameter is sent to the satellite terminal, specifying that the BACH period parameter is used to override the default period parameter obtained from the broadcast control channel, so as to instruct the satellite terminal to use the BACH period parameter to listen to the BACH during the connected state. By overriding the default parameter with a dedicated parameter, the effective distribution of network-side configuration to the terminal side is completed. This process enables high-priority terminals to be allocated shorter BACH periods according to the policy to reduce alarm latency, or enables low-power terminals to be allocated longer BACH periods to reduce the frequency of listening and thus save energy. It solves the problem in the existing technology that the broadcast alarm channel BACH of GMR system cannot be configured differently for terminals with different priorities or capabilities, resulting in high alarm latency for high-priority terminals or high energy consumption for low-power terminals. It realizes differentiated configuration of BACH period based on terminal priority or capability, improves alarm transmission efficiency and optimizes terminal power consumption performance.

[0040] Optionally, based on the access request message and a preset policy, the BACH period parameters for the satellite terminal's broadcast alarm channel are determined, including:

[0041] 1) If the satellite terminal is identified as a high-priority terminal, the BACH period parameter will be configured to a value that is less than the default period parameter.

[0042] 2) If the satellite terminal is identified as a low-power IoT terminal, the BACH period parameter is configured to a second value that is greater than the default period parameter.

[0043] In this embodiment, if the satellite terminal is identified as a high-priority terminal, the BACH period parameter is configured to a first value that is less than the default period parameter; if the satellite terminal is identified as a low-power IoT terminal, the BACH period parameter is configured to a second value that is greater than the default period parameter. Here, "high-priority terminal" specifically refers to a satellite terminal used in emergency rescue scenarios, whose core requirement is extremely low alarm reception latency; "low-power IoT terminal" refers to IoT devices with limited power supply or requiring extended battery life, whose core requirement is reduced monitoring power consumption; the "first value" and "second value" represent the specific period duration customized according to the characteristics of the different terminals mentioned above. In actual operation, when the satellite network receives an access request carrying a priority indicator and determines that the terminal belongs to the emergency rescue category, the network side sets the BACH period parameter to a shorter first value according to a preset strategy. This allows the terminal to wake up and listen to the broadcast alarm channel more frequently during the connected state, thereby significantly shortening the time window from the occurrence of an alarm to the terminal receiving the notification. Conversely, when the terminal is determined to belong to the low-power IoT category, the network side sets the BACH period parameter to a longer second value, extending the interval between two listenings by the terminal and reducing the frequency of the radio frequency module being turned on.

[0044] Specifically, by configuring different values ​​for different terminal types, high-priority terminals can achieve the rapid alarm response required in emergency rescue scenarios at the cost of a small amount of standby power consumption. At the same time, low-power IoT terminals can significantly reduce power consumption while ensuring basic communication functions. This achieves precise adaptation to extremely differentiated application needs under a unified framework, and improves the overall service efficiency and resource utilization of the system in complex scenarios.

[0045] Optionally, the encoding method for the dedicated BACH periodic parameters is the same as that for the parameters in the system message SI3 of the broadcast control channel.

[0046] In this embodiment, the BACH period parameter issued by the network to override the default configuration directly adopts the definition of the BA-PA-MFRMS parameter in the SI3 message in terms of bit structure, length, and parsing rules. For example, both occupy the same number of bits and follow the same value mapping relationship. This limitation allows the satellite terminal to correctly identify the BACH period length by directly reusing the mature logic of parsing BA-PA-MFRMS in the existing SI3 message when receiving and processing this dedicated parameter, without adding an independent decoding module or writing additional parsing algorithms in the protocol stack. This avoids the increased terminal decoding complexity and development costs caused by the use of non-standard encoding, significantly reducing the compatibility burden of terminal implementation and improving the efficiency of parameter processing while maintaining the flexibility of differentiated configuration.

[0047] Optionally, the BACH period parameters may also include: activation time; the activation time is used to indicate when the satellite terminal begins to apply the BACH period parameters.

[0048] In this embodiment, the activation time, as a component of the BACH period parameter, specifically indicates when the satellite terminal should stop using the original default period parameter and begin executing the new dedicated BACH period parameter for listening. This time parameter is not a simple delay indicator, but rather closely coordinated with the signaling action, providing the terminal with a clear switching reference point. This allows the terminal to synchronously complete the parameter activation switching action at the specified precise time after receiving the configuration instruction, thereby avoiding problems such as listening window confusion or parameter application asynchrony caused by unclear activation timing. This achieves high-precision synchronous control of the broadcast alarm channel configuration, ensuring that high-priority terminals can enter the listening state in a timely manner to reduce alarm delay, or allowing low-power terminals to switch parameters at appropriate times to optimize energy consumption.

[0049] Optionally, the access request message is a random access channel (RACH) request message; the RACH request message includes a newly extended establishment reason field, and the indication information is carried by a specific enumeration value in the establishment reason field.

[0050] In this embodiment, "the access request message is a Random Access Channel (RACH) request message" defines the specific physical carrier of the signaling interaction as the initial random access procedure when the satellite terminal initiates network access; "the RACH request message includes a newly extended establishment reason field" means that a dedicated area is allocated in this standard message structure to carry non-default service attribute identifiers; "indication information is carried through a specific enumeration value in the establishment reason field" clarifies the data encoding method, that is, mapping the terminal's priority or capability parameters to discrete enumeration codes. Specifically, when the satellite terminal initiates access, it converts its own priority or capability information into a corresponding specific enumeration value and fills it into the newly extended field. After receiving the message, the satellite network directly parses the field to obtain the enumeration value to identify the terminal type, and then combines it with a preset policy decision to generate the corresponding BACH periodic parameters and send them out. By combining the above features, this solution solves the problem of the lack of specific physical channels and content carrying methods in the existing signaling interaction. It realizes the clear and standardized transmission of terminal differentiation identifiers in the existing standard signaling format, enabling the satellite network to accurately identify the terminal type and issue matching BACH period parameters, thereby effectively reducing the alarm delay of high-priority terminals or reducing the power consumption of low-power terminals.

[0051] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods according to the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0052] Embodiments of this application also provide a computer-readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the steps in any of the above method embodiments.

[0053] In one exemplary embodiment, the aforementioned computer-readable storage medium may include, but is not limited to, various media capable of storing computer programs, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0054] Figure 3 This is a structural block diagram of an electronic device according to an embodiment of this application, such as... Figure 3 As shown, embodiments of this application also provide an electronic device 300, including a processor 301 and a memory 302, wherein the memory 302 stores a computer program, and the processor 301 is configured to run the computer program to perform the steps in any of the above method embodiments.

[0055] In one exemplary embodiment, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor and the input / output device is connected to the processor.

[0056] Embodiments of this application also provide a computer program product, including a computer program that, when executed by a processor, implements the steps in any of the above method embodiments.

[0057] Specific examples in this embodiment can be found in the examples described in the above embodiments and exemplary implementations, and will not be repeated here.

[0058] Obviously, those skilled in the art should understand that the modules or steps of this application described above can be implemented using general-purpose computing devices. They can be centralized on a single computing device or distributed across a network of multiple computing devices. They can be implemented using computer-executable program code, and thus can be stored in a storage device for execution by a computing device. In some cases, the steps shown or described can be performed in a different order than those presented here, or they can be fabricated as separate integrated circuit modules, or multiple modules or steps can be fabricated as a single integrated circuit module. Thus, this application is not limited to any particular combination of hardware and software.

[0059] The above description is merely an exemplary embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this application should be included within the protection scope of this application.

Claims

1. A channel configuration method, characterized by, The method includes: Receive an access request message sent by a satellite terminal, wherein the access request message carries indication information for indicating the terminal priority or capability; Based on the access request message and the preset strategy, a decision is made to generate the BACH period parameters for the satellite terminal; the BACH period parameters are used to override the default period parameters obtained from the broadcast control channel. A signaling message carrying the BACH period parameter is sent to the satellite terminal to instruct the satellite terminal to listen to the BACH using the BACH period parameter during the connected state.

2. The method according to claim 1, characterized in that, The signaling includes at least one of the following: Immediate assignment messages sent via the access grant channel; RRC connection establishment messages sent via the dedicated control channel.

3. The method according to claim 1, characterized in that, The indication information includes at least one of priority indication or capability indication; the priority indication is used to identify the satellite terminal as a high-priority terminal, which is used in emergency rescue scenarios; the capability indication is used to identify the satellite terminal as a low-power IoT terminal or an enhanced coverage terminal.

4. The method according to claim 3, characterized in that, The step of generating the broadcast alarm channel (BACH) period parameters for the satellite terminal based on the access request message and a preset strategy includes: If the satellite terminal is identified as the high-priority terminal, the BACH period parameter is configured to a first value that is less than the default period parameter. If the satellite terminal is identified as a low-power IoT terminal, the BACH period parameter is configured to a second value that is greater than the default period parameter.

5. The method according to claim 1, characterized in that, The encoding method of the dedicated BACH periodic parameters is the same as the parameter encoding method in the system message SI3 of the broadcast control channel.

6. The method according to claim 1, characterized in that, The BACH periodic parameter also includes an activation time; the activation time is used to indicate the moment when the satellite terminal begins to apply the BACH periodic parameter.

7. The method according to claim 1, characterized in that, The access request message is a Random Access Channel (RACH) request message; the RACH request message includes a newly extended establishment reason field, and the indication information is carried through a specific enumeration value in the establishment reason field.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, wherein the computer program, when executed by a processor, implements the steps of the method described in any one of claims 1 to 7.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the steps of the method described in any one of claims 1 to 7.

10. A computer program product comprising a computer program that, when executed by a processor, implements the steps of the method described in any one of claims 1 to 7.

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