CN117615426A - A terminal access method, system and device for a multi-standard wireless communication system - Google Patents

Abstract

The invention discloses a terminal access method, system and device of a multi-standard wireless communication system. The method includes the following steps: monitoring and receiving key information of wireless access networks of multiple standards, and obtaining corresponding information of wireless access networks of all standards. The key information; the key information is obtained and broadcast by the network side, and the key information includes the basic information and network status of each standard wireless access network; according to the received key information of the wireless access network and the terminal's business requirements, determine the optimal wireless access network, and issue an access request. The present invention realizes efficient integration and unified management of multi-standard wireless communication systems by providing key network information of wireless access networks of different standards and using a unified mechanism to provide wireless access standard selection and access for terminals.

Description

A terminal access method, system and device for a multi-standard wireless communication system

Technical field

The present invention relates to the field of communication technology, and in particular, to a terminal access method, system and device for a multi-standard wireless communication system.

Background technique

As the commercial use of 5G networks gradually matures, the needs and concepts of future wireless communication networks have begun to become a hot topic in the industry. 5G networks meet increasingly diverse business needs and will further develop in the future. The development of new services and new technologies will cause wireless communication networks to face a series of new environments and challenges in the future. In the future, wireless communication networks will face the coexistence of multiple standard networks instead of a single standard network coverage. In standards organizations such as 3GPP, research on the interconnection and collaboration of multiple standard networks has been carried out for a long time, including the interconnection and interoperability of licensed spectrum systems and unlicensed spectrum systems, 4G/5G multi-connection collaboration, etc. However, multi-standard interconnection and collaboration technology has not been applied on a large scale because its interconnection and collaboration mechanism is complex, its operating efficiency is low, and it faces many inconveniences in practical applications.

On the other hand, in order to facilitate the use of wireless communication services of different standards, terminals usually functionally support multiple different wireless communication standards. However, different wireless communication standards are independent of each other and only serve as independent data pipes. Different wireless communication standards have different design principles and applicable scenarios. For example, WiFi technology uses low-power, unlicensed spectrum and features plug-and-play convenience and low cost. However, due to the lack of complete protocol design and corresponding core network functions, its service quality assurance capabilities are weak. 3GPP technology uses complex infrastructure networks to provide wireless access services. It has the characteristics of complete communication protocols, complete functions, and perfect service quality assurance capabilities. However, its users need to accept network management, and the access and management mechanisms are complex. Due to the lack of appropriate collaboration and integration mechanisms among different standards, terminals cannot reasonably and effectively select and use wireless communication transmission of different standards.

Contents of the invention

According to one aspect of the present invention, a terminal access method, system, and device of a multi-standard wireless communication system are provided. By providing key network information of wireless access networks of different standards, a unified mechanism is used to provide wireless access standards for terminals. Selection and access to achieve efficient integration and unified management of multi-standard wireless communication systems.

In a first aspect, the present invention discloses a terminal access method for a multi-standard wireless communication system. The method includes the following steps:

Monitor and receive key information of wireless access networks of multiple standards, and obtain corresponding key information of wireless access networks of all standards; the key information is obtained and broadcast by the network side, and the key information includes wireless access networks of each standard. Basic information about accessing the network and network status;

According to the received key information of the wireless access network and the business requirements of the terminal, the optimal wireless access network is determined and an access request is issued.

In some embodiments, the network status includes the status performance and data transmission performance of the current wireless access network; the data transmission performance includes the maximum/average transmission rate, minimum/average air interface transmission time supported by the wireless access network delay, average transmission reliability.

In some implementations, the maximum/average transmission rate supported by the wireless access network is:

Among them, W _re is the average idle spectrum resource, P _re is the average available power, G is the average transmission path gain, and P _noise is the average noise power;

Alternatively, the maximum/average transmission efficiency is calculated based on the average resource load and the average rate.

In some implementations, the minimum air interface transmission delay supported by the wireless access network is:

Among them, D _offer is the minimum air interface transmission delay, ρ is the average resource load, D _avg is the average delay, and ρ _delay is the preset load threshold. When the load exceeds the threshold, the delay performance will change in proportion to the load. Otherwise, the wireless access network will provide delay guarantee D _std .

In some implementations, the average transmission reliability supported by the wireless access network is:

Among them, L _offer is the average transmission reliability, ρ is the average resource load, L _avg is the average reliability, and ρ _reliab is the preset load threshold. When the load exceeds the threshold, the reliability performance will change inversely proportional to the load, otherwise , the wireless access network will provide reliability guarantee L _std .

In some embodiments, the broadcasting of key information of each standard wireless access network includes: broadcasting based on a unified broadcast channel, broadcasting based on frequency band-based broadcast channels, or based on broadcast channels of each wireless access network.

In some embodiments, the optimal wireless access network is determined based on the received key information of the wireless access network and the business requirements of the terminal, and an access request is issued, which specifically includes:

Obtain information about terminal support capabilities. When the terminal support capabilities support wireless access transmission of a single standard at the same time, select a wireless access network whose network status and data transmission performance meet business requirements, or a wireless access network with the largest corresponding network transmission capability. Enter the network;

When the terminal supports wireless access transmission of multiple standards at the same time, select one or more wireless access network combinations whose network status and capability combination meets the business requirements, or one or more wireless access network combinations with the largest corresponding network transmission capability combination. Access the network.

In some embodiments, the basic information includes standard identification and basic radio information; the service requirements include terminal capabilities, measurements, and service requirement performance, and the service requirement performance indicators include rate, delay, and reliability.

In the second aspect, a terminal access system for a multi-standard wireless communication system is disclosed, including:

The wireless network key information generation module generates key information of the wireless access network of the corresponding standard based on the access network standard, system configuration, and current status;

The wireless access network key information sending module sends the key information of each standard wireless access network through broadcast;

The wireless network key information receiving module monitors and receives key information of wireless access networks of multiple standards, and obtains the corresponding basic information and network status of wireless access networks of all standards;

The wireless access network selection module determines the optimal wireless access network and issues an access request based on the received key information of the wireless access network and the business requirements of the terminal.

In a third aspect, a multi-standard wireless communication device is disclosed. The device includes: a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the A terminal access method for a multi-standard wireless communication system as described in any one of the above.

Compared with the prior art, the beneficial effects of the present invention are:

The present invention provides a terminal access method, system and device for a multi-standard wireless communication system. By broadcasting key network information of wireless access networks of each standard through the network side, the terminal can obtain wireless access of different standards. According to the status and capabilities of the network, based on the terminal capabilities and business needs, select the appropriate wireless access network for access and transmission. The terminal can select multi-standard wireless access networks based on terminal capabilities, business needs, and network status, which improves the matching of terminal capabilities, business needs, and network capabilities, thereby improving the efficiency and performance of multi-standard wireless access network selection.

Description of drawings

Figure 1 is a schematic flow chart of a terminal access method of a multi-standard wireless communication system provided by the present invention;

Figure 2 is a schematic structural diagram of a multi-standard wireless communication system provided by the present invention.

Detailed ways

For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention. Not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

The terms "comprising" and "having" and any variations thereof in the embodiments of the present invention are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or modules and need not be limited to the clear Those steps or modules listed may instead include other steps or modules not expressly listed or inherent to the process, method, product or apparatus.

As shown in Figure 1, this application provides a terminal access method for a multi-standard wireless communication system. By providing key network information of different wireless access networks, a unified mechanism is used to provide wireless access standard selection and connection for the terminal. input to achieve efficient integration and unified management of multi-standard wireless communication systems.

In this application, a terminal generally refers to any device used to transmit user data through a wireless network access point. Wireless network access points include base stations and other wireless network access points. Wireless networks include mobile cellular wireless network standards that comply with 3GPP standards (for example, 3G CDMA network, 4G LTE network, 5G NR network, etc.), wireless access technologies that comply with IEEE standards (for example, IEEE 802.11 series wireless LAN, 802.16 series wireless cellular network), Bluetooth wireless transmission technology, ultra-wideband UWB wireless transmission technology, Internet of Things ZigBee wireless transmission technology, etc.

Specifically, this method includes the following steps:

Step S1: Monitor and receive key information of wireless access networks of multiple standards, and obtain corresponding basic information and network status of wireless access networks of all standards; the key information is obtained and broadcast by the network side, and the key information Includes basic information and network status of each standard wireless access network.

According to the wireless transmission technology and corresponding protocol standards, the standard of the wireless access network is defined. The current mainstream wireless access standards include: mobile cellular wireless network standards that comply with 3GPP standards (for example, 3G CDMA network, 4G LTE network, 5G NR network, etc.), wireless access technologies that comply with IEEE standards (for example, IEEE 802.11 series wireless LAN, 802.16 series wireless cellular network), Bluetooth wireless transmission technology, ultra-wideband UWB wireless transmission technology, Internet of Things ZigBee wireless transmission technology, etc. Each wireless access standard technology basically includes specific wireless signal specifications, data processing specifications, and upper-layer protocol specifications. Since different standards have significant differences in signal specifications, data processing and protocols, communication nodes using different standards cannot communicate directly. That is, the prerequisite for completing wireless communication transmission is that both communicating parties adopt the same communication standard.

Traditionally, each wireless communication network only provides a wireless access network of a single standard, but there may be multiple wireless communication networks in the same area, each providing wireless access services of a corresponding standard. On the other hand, each terminal has limited standard capabilities and can only support a few standards, and selects the corresponding wireless access standard based on fixed criteria. For example, wireless access standards and access services are selected according to priority order. The above traditional network solutions and terminal solutions lack the flexibility of format selection and cannot fully utilize the advantages of different formats to maximize wireless transmission service capabilities and quality. Under the conditions of the integration of multiple formats on the network side, not only different formats need to be provided Wireless access services also need to provide key information on access networks of different standards to achieve efficient standard selection and higher service quality.

The key information of the wireless access network that supports standard selection includes basic information of the corresponding standard and the current network status of the wireless access network of this standard. Among them, key information includes standard identification and basic radio information. The format identifier is used to uniquely identify the format standard and its protocol version. The identifier needs to be formulated in advance and must be globally (or regionally) unique. Basic radio information includes signal frequency band (or carrier frequency point) and system bandwidth.

The network status of the wireless access network includes status performance and data transmission performance. The status performance of the current wireless access network includes load status statistics and link performance statistics. The status load statistics include the average spectrum/power resource usage rate, and the link performance statistics include uplink and downlink interference intensity, bit error rate, and call failure rate. wait. The status and performance information of the wireless access network is obtained or calculated through the statistical information in the network management system or the statistical information in the wireless access point.

The average spectrum usage in load state is defined as:

ρ _f =W _a /W _tot

Among them, W _a is the average allocated spectrum resource, and W _tot is the total spectrum resource.

The average power resource usage is defined as:

ρ _p =P _a /P _tot

Among them, P _a is the average used power, and P _tot is the total power.

The data transmission performance supported by the wireless access network is the performance that the wireless access network can currently provide. The performance parameters currently supported by wireless access networks include: maximum/average transmission rate, minimum/average air interface transmission delay, average transmission reliability, etc. In order to determine the data transmission performance supported by the current wireless access network, it is necessary to determine the performance and load of the current network, spare resources, and other policies (eg, resource reservation amount).

In order to determine the maximum transmission rate supported, it is necessary to determine the average idle spectrum resource W _re , average available power P _re , average transmission path gain G, and average noise power P _noise , then the maximum transmission rate supported is:

In another implementation, the maximum supported transmission rate is determined and calculated based on the average resource load ρ and the average rate R _avg as:

Determine the minimum air interface transmission delay supported by the network side, and calculate it based on the average resource load ρ and the average delay D _avg as:

Among them, ρ _delay is the preset load threshold. When the load exceeds the threshold, the delay performance will change in proportion to the load. Otherwise, the network will provide delay guarantee D _std .

To determine the transmission reliability supported by the network side, it can be calculated based on the average resource load ρ and the average reliability L _avg as:

Among them, ρ _reliab is the preset load threshold. When the load exceeds the threshold, the reliability performance will change in inverse proportion to the load. Otherwise, the network will provide reliability guarantee L _std .

Since wireless transmission services are increasingly diversified, the corresponding link performance indicators are also different. Therefore, the calculation of status information in this application considers supporting a more flexible strategy on the network side (base station). For example, the status information provided is Network side resource reservation is considered. That is, when determining the transmission rate, delay, reliability and other performances, the corresponding resource load ρ _rsv is the remaining resource load ρ _rsv =α·ρ, or ρ _rsv =ρ+Δρ, where α is Resource load reservation coefficient, Δρ is the resource load reservation amount, so as to more effectively support more formats and more wireless transmission business requirements

It is worth noting that the data transmission performance supported by the wireless access network can be obtained or calculated through statistical information in the network management system on the network side, or statistical information in wireless access points, such as base stations.

The key information of the wireless access network that supports standard selection needs to be sent in the form of broadcast so that all terminals in the coverage area can monitor and receive it. Specifically, it is generally sent in the following three ways:

(1) Sending key network information based on a unified broadcast channel

The network side uses a unified broadcast channel to send key information of wireless access networks of various standards. Terminals that support multi-standard wireless access network selection can monitor the information of the unified broadcast channel. This method of broadcasting channels is simple, but it sends information of all formats in one broadcast channel, and the amount of data sent by a single channel is large.

(2) Sending network key information based on band-by-band broadcast channels

The network side sends the broadcast channel corresponding to the frequency band in each frequency band, and sends the key information of the wireless access network of each standard contained in the frequency band. Terminals that support multi-standard wireless access network selection can monitor the broadcast channels of the supported frequency bands. information. This method sends information about the standard contained in the frequency band in each frequency band. The terminal can read the information in the relevant frequency bands according to the frequency bands it supports, without having to read all the information at once. For example, there is no need to read the standard included in the frequency band that the terminal does not support.

(3) Send network key information based on the broadcast channels of each wireless access network

Each radio access network independently sends the network's key information in its existing broadcast channel. A terminal that supports multi-standard wireless access network selection can monitor information on broadcast channels of each wireless access network. Based on the original broadcast channels of each standard, the advantage is that there is no need to design a separate broadcast channel, but the disadvantage is that the current broadcast channels of each standard need to be modified or added.

Correspondingly, when a unified broadcast channel is used to send key network information, the terminal directly monitors and receives the key information in the unified broadcast channel; when a band-by-band broadcast channel is used to send key information, the terminal transmits key information within the supported frequency band range one by one. Monitor and receive key information in the broadcast channel; when using the broadcast channel of each wireless access network to send key information, the terminal monitors and receives the key information in the broadcast channel of each wireless access network.

Step S2: Determine the optimal wireless access network based on the received key information of the wireless access network and the service requirements of the terminal, and issue an access request.

After the terminal monitors and obtains key information of wireless access networks of multiple standards, according to the terminal's business requirements, the business requirements include but are not limited to terminal capabilities, measurement and business requirement performance. The business requirement performance indicators usually include: rate, time Delay, reliability, etc., determine the optimal wireless access network from the wireless access network.

Specifically, when the terminal capability only supports wireless access transmission of a single standard at the same time, select a wireless access network whose network status and capabilities meet business requirements, or a wireless access network with the largest corresponding network transmission capability.

When the terminal capability supports wireless access transmission of multiple standards at the same time, select one or more wireless access network combinations whose network status and capability combination meets the business requirements, or one or more wireless access network combinations with the largest corresponding network transmission capability combination. Enter the network. For example, when a single wireless access network cannot meet the rate requirements, the sum of the rates of multiple wireless access networks is selected to be greater than or equal to the rate required for service transmission, or a weighting mechanism is used to determine the optimal wireless access network based on different weights. Starting from the terminal transmission performance requirements, network selection is made to meet the performance requirements of the terminal's wireless transmission and more effectively ensure the performance of the terminal's wireless transmission.

Based on the same inventive idea, this application also provides a multi-standard wireless communication system, as shown in Figure 2, including:

The wireless network key information generation module generates key information of the wireless access network of the corresponding standard based on the access network standard, system configuration, and current status;

The wireless access network key information sending module sends the key information of each standard wireless access network through broadcast;

The wireless network key information receiving module monitors and receives key information of wireless access networks of multiple standards, and obtains the corresponding basic information and network status of wireless access networks of all standards;

The wireless access network selection module determines the optimal wireless access network and issues an access request based on the received key information of the wireless access network and the business requirements of the terminal.

This application provides a terminal access method, system, and device for a multi-standard wireless communication system. By broadcasting key network information of wireless access networks of each standard through the network side, the terminal can obtain the status and status of wireless access networks of different standards. Capability, according to the terminal capabilities and business needs, select the appropriate wireless access network for access and transmission. The terminal can select multi-standard wireless access networks based on terminal capabilities, business needs, and network status, which improves the matching between terminal capabilities, business needs, and network capabilities, thereby improving the efficiency and performance of multi-standard wireless access network selection.

This application also provides a multi-standard wireless communication device or electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, any of the above steps are implemented. A terminal access method for a multi-standard wireless communication system.

Embodiments of the present application also provide a non-transitory machine-readable storage medium. An executable program is stored on the non-transitory machine-readable storage medium. When the executable program is run by a processor, the processing The processor executes the method provided in the above embodiment. Memory that stores executable program code;

A processor coupled to a memory;

The processor calls the executable program code stored in the memory to execute the described terminal access method of a multi-standard wireless communication system.

An embodiment of the present invention discloses a computer program product. The computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause the computer to perform the described multi-mode wireless communication. System terminal access method.

The above-described embodiments are only illustrative, in which the modules described as separate components may or may not be physically separated. The components shown as modules may or may not be physical modules, and may be located in a place, or can be distributed to multiple network modules. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Persons of ordinary skill in the art can understand and implement the method without any creative effort.

Through the detailed description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions can be embodied in the form of software products in essence or in part that contribute to the existing technology. The computer software products can be stored in computer-readable storage media, and the storage media includes read-only memories. (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), programmable read-only memory (Programmable Read-only Memory, PROM), erasable programmable read-only memory (ErasableProgrammable Read Only Memory, EPROM) , One-time Programmable Read-Only Memory (OTPROM), Electronically Erasable Programmable Read-Only Memory (EEPROM), CompactDisc Read-Only Memory , CD-ROM) or other optical disk storage, magnetic disk storage, magnetic tape storage, or any other computer-readable medium that can be used to carry or store data.

Finally, it should be noted that the embodiments of the present invention disclosed are only preferred embodiments of the present invention, and are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments. Note that those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not make the corresponding technology The essence of the solution deviates from the spirit and scope of the technical solution of each embodiment of the present invention.

Claims (10)

1. A terminal access method for a multi-system wireless communication system, the method comprising the steps of:

monitoring and receiving key information of wireless access networks of various systems, and obtaining corresponding key information of the wireless access networks of all the systems; the key information is acquired and broadcast by a network side, and the key information comprises basic information and network states of wireless access networks of each system;

and determining an optimal wireless access network according to the received key information of the wireless access network and the service requirement of the terminal, and sending an access request.

2. The method for accessing a terminal of a multi-mode wireless communication system according to claim 1, wherein the network status includes status performance and data transmission performance of a current wireless access network; the data transmission performance comprises a maximum/average transmission rate, a minimum/average air interface transmission time delay and average transmission reliability supported by the wireless access network.

3. The terminal access method of a multi-system wireless communication system according to claim 2, wherein: the maximum/average transmission rate supported by the radio access network is:

wherein W is _re To average idle spectrum resources, P _re For average available power, G is average transmission path gain, P _noise Is the average noise power;

alternatively, the maximum/average transmission efficiency is calculated from the average resource load and the average rate.

4. The terminal access method of a multi-system wireless communication system according to claim 2, wherein: the minimum air interface transmission delay supported by the wireless access network is:

wherein D is _offer For the minimum air interface transmission delay, ρ is the average resource load, D _avg Is the average time delay ρ _delay For a preset load threshold, when the load exceeds the threshold, the time delay performance is changed in proportion to the load, otherwise, the wireless access network provides time delay guarantee D _std 。

5. The terminal access method of a multi-system wireless communication system according to claim 2, wherein the average transmission reliability supported by the wireless access network is:

wherein L is _offer For average transmission reliability, ρ is average resource load, L _avg For average reliability ρ _reliab For a preset load threshold, when the load exceeds the threshold, the reliability performance will change inversely with the load, otherwise, the wireless access network will provide a reliability guarantee L _std 。

6. The method for accessing a terminal of a multi-system wireless communication system according to any one of claims 1 to 4, wherein the broadcasting key information of each system wireless access network comprises: broadcast based on a unified broadcast channel, broadcast based on a frequency-band-by-frequency-band broadcast channel, or broadcast based on broadcast channels of the respective radio access networks.

7. The method for accessing a terminal of a multi-system wireless communication system according to claim 2, wherein determining an optimal wireless access network according to the received key information of the wireless access network and the service requirement of the terminal, and sending an access request, specifically comprises:

acquiring information of terminal supporting capability, and selecting a wireless access network with network state and data transmission performance meeting service requirement performance or a wireless access network with maximum corresponding network transmission capability when the terminal supporting capability supports wireless access transmission of a single system at the same time;

when the terminal supports wireless access transmission of multiple standards simultaneously, one or more wireless access network combinations with network states and capability combinations meeting service requirement performance or one or more wireless access networks with maximum corresponding network transmission capability combinations are selected.

8. A terminal access method of a multi-system wireless communication system according to any one of claims 1 to 4, wherein the basic information includes a system identifier and basic radio information; the service requirements comprise terminal capability, measurement and service requirement performance, and the service requirement performance indexes comprise speed, time delay and reliability.

9. A multi-mode wireless communication system, comprising:

the wireless network key information generation module generates key information of a wireless access network of a corresponding system according to the system and system configuration of the access network and the current state;

the wireless access network key information sending module is used for sending key information of the wireless access network of each system through broadcasting;

the wireless network key information receiving module is used for monitoring and receiving key information of wireless access networks of various modes and obtaining corresponding basic information and network states of the wireless access networks of all the modes;

and the wireless access network selection module determines an optimal wireless access network according to the received key information of the wireless access network and the service requirement of the terminal and sends an access request.

10. A multi-mode wireless communication device, comprising: memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing a terminal access method of a multi-mode wireless communication system according to any of claims 1 to 8 when the computer program is executed.