CN113301632B - Network access method and device for converged network multimode terminal - Google Patents
Network access method and device for converged network multimode terminal Download PDFInfo
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- CN113301632B CN113301632B CN202110848783.9A CN202110848783A CN113301632B CN 113301632 B CN113301632 B CN 113301632B CN 202110848783 A CN202110848783 A CN 202110848783A CN 113301632 B CN113301632 B CN 113301632B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/18—Selecting a network or a communication service
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/20—Selecting an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
Abstract
The invention provides a network access method and a device for a converged network multimode terminal, wherein the method comprises the following steps: initializing parameters; determining a two-dimensional position, satellite orbit information and a WIFI position of a base station; calculating effective coverage areas of the base stations and the WIFI by adopting a path attenuation model according to the two-dimensional position of the base station, the satellite orbit information, the WIFI position and the transmitting power of the base station and the WIFI; defining a cost function for a multimode terminal
And traversing i, j, k in the effective coverage range, and calculating the access of each multimode terminal to different networks
A value; for each terminal i, solve argmin: (
) And returning the i, j and k values, namely that the j access point of the ith terminal accessing the kth network is the optimal access point. The invention can quickly realize the selection of the optimal access network, has low cost and excellent performance and is easy to realize.
Description
Technical Field
The invention relates to the field of wireless converged networks, in particular to a network access method and a network access device for a converged network multimode terminal.
Background
A heterogeneous converged network refers to a network of computers, network devices and systems produced by different manufacturers, most often operating over different protocols to support different functions or applications. In order to be able to access multiple networks simultaneously, a mobile terminal should have an interface that can access multiple networks, and such a mobile terminal is called a multimode terminal. The traditional radio resource management includes access control, handover, load balancing, power control, channel allocation, etc., and in the heterogeneous converged network, the radio resource management also aims to provide ubiquitous services for users and perform seamless handover, and improve the utilization rate of radio resources. Radio resource management in a heterogeneous converged network is an extension of traditional radio resource management.
With the development of technologies such as satellites, a converged network which merges multiple access modes such as satellites, traditional mobile communication and local area networks develops rapidly, and meanwhile, the problem of multi-network access in a larger space-time is faced, and the network attribute is more complex. Therefore, how to select an access network for a satellite-oriented and wireless communication converged network multimode terminal is still a troublesome problem.
Disclosure of Invention
In view of the above problems, the present invention provides a network access method and apparatus for a converged network multimode terminal, which enable the performance to be superior and make it easier to implement low-cost and efficient selection of multi-network access.
In order to solve the technical problems, the invention adopts the technical scheme that: a network access method of a converged network multimode terminal comprises the following steps: initializing parameters, wherein the parameters comprise satellite positions, communication prices of access networks, bandwidths of the access networks, base station positions, WIFI positions, terminal positions, base station transmitting power and WIFI transmitting power; determining a two-dimensional position, satellite orbit information and a WIFI position of a base station based on a geographic basic information system; calculating effective coverage areas of the base stations and the WIFI by adopting a path attenuation model according to the two-dimensional position of the base station, the satellite orbit information, the WIFI position and the transmitting power of the base station and the WIFI; defining a cost function for a multimode terminal
(ii) a Traversing i, j, k within the effective coverage range, and calculating the access of each multimode terminal to different networks
The values are shown, wherein i, j and k respectively represent the ith terminal, the jth access point of the access network and the kth access network; for each terminal i, findDeargmin: (
) And returning the i, j and k values, namely that the j access point of the ith terminal accessing the kth network is the optimal access point.
Preferably, the path attenuation model is:
wherein the content of the first and second substances,
in order to receive the power, the power is transmitted,
for transmit power, r is the distance of the transmitter from the receiver, and α is the path loss factor.
As a preferred scheme, the formula of the cost function of the multimode terminal is as follows:
As a preferred scheme, the traversing i, j, k calculates that each multimode terminal accesses different networks
Values, including: c, c is the number of all access networks, and each access network k is traversed; for i =1: p, p is the number of multimode terminals, and each multimode terminal i is traversed; for j =1: qk，qkTraversing each access point j of the kth network for the number of the access points of the kth network; computing
A value; ending the j cycle; ending the i loop; the k-cycle is ended.
Preferably, the geographic basic information system is a GPS positioning system.
The invention also discloses a network access device of the converged network multimode terminal, which comprises the following components: the initialization module is used for initializing parameters, wherein the parameters comprise satellite positions, communication prices of all access networks, bandwidths of all access networks, base station positions, WIFI positions, terminal positions, base station transmitting power and WIFI transmitting power;
the position determining module is used for determining a two-dimensional position, satellite orbit information and a WIFI position of a base station based on a geographic basic information system;
the range calculation module is used for calculating the effective coverage range of each base station and WIFI by adopting a path attenuation model according to the two-dimensional position of the base station, the satellite orbit information, the WIFI position and the transmitting power of the base station and the WIFI;
a cost definition module for defining cost function of the multimode terminal
The formula of the cost function of the multimode terminal is as follows:
wherein the content of the first and second substances,
the bandwidth allocated to the ith terminal for the jth access point of the kth network,
the communication price of the kth access network is in the unit of RMB/s/Hz,
for the size of data transmitted by the ith terminal,
the transmission power allocated to the ith terminal for the jth access point of the kth network,
the k-th network energy price is in the unit of RMB/J,
the distance from the jth access point to the ith terminal of the kth network,
in order to be a path attenuation factor,
is the noise power;
a cost calculation module for traversing i, j, k and calculating the access of each multimode terminal to different networks in the effective coverage range
The values are shown, wherein i, j and k respectively represent the ith terminal, the jth access point of the access network and the kth access network; the traversal i, j, k includes: c, c is the number of all access networks, and each access network k is traversed; for i =1: p, p is the number of multimode terminals, and each multimode terminal i is traversed; for j =1: qk，qkTraversing each access point j of the kth network for the number of the access points of the kth network;
an optimal point determining module, configured to solve argmin (for each terminal i) ((ii))
) And returning the i, j and k values, namely that the j access point of the ith terminal accessing the kth network is the optimal access point.
Compared with the prior art, the invention has the beneficial effects that: the method can quickly realize the selection of the optimal access network of the terminal under the heterogeneous network environment, has low cost and excellent performance, and is easy to realize.
Drawings
The disclosure of the present invention is illustrated with reference to the accompanying drawings. It is to be understood that the drawings are designed solely for the purposes of illustration and not as a definition of the limits of the invention. In the drawings, like reference numerals are used to refer to like parts. Wherein:
FIG. 1 is a schematic diagram of an implementation scenario according to an embodiment of the present invention;
fig. 2 is a schematic flowchart of a network access method of a converged network multimode terminal according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a network access device of a converged network multimode terminal according to an embodiment of the present invention.
Detailed Description
It is easily understood that according to the technical solution of the present invention, a person skilled in the art can propose various alternative structures and implementation ways without changing the spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical aspects of the present invention, and should not be construed as all of the present invention or as limitations or limitations on the technical aspects of the present invention.
Fig. 1 is a schematic structural diagram of an implementation scenario according to an embodiment of the present invention. It shows a number of communication approaches including: satellite communication, WIFI (wireless local area network), and traditional cellular network communication (base station).
Referring to fig. 2, an embodiment of the present invention provides a network access method for a converged network multimode terminal, including the following steps:
s100, initializing parameters, wherein the parameters comprise a satellite position, communication prices of access networks, bandwidths of the access networks, a base station position, a WIFI position, a terminal position, base station transmitting power and WIFI transmitting power;
s200, determining two-dimensional positions of the base stations based on a geographic basic information system, wherein i =1 … n, n is the number of the base stations, satellite orbit information and WIFI positions, i =1 … m, and m is the number of WIFI. The geographic basic information system is a GPS positioning system.
And S300, calculating the effective coverage area of each base station and the WIFI by adopting a path attenuation model according to the two-dimensional position of the base station, the satellite orbit information, the WIFI position and the transmitting power of the base station and the WIFI.
The formula of the path attenuation model is as follows:
wherein the content of the first and second substances,
in order to receive the power, the power is transmitted,
for transmit power, r is the distance of the transmitter from the receiver, and α is the path loss factor. When receiving power
Or when a certain set threshold value is adopted, the value range of r is the effective coverage range of each base station or WIFI.
S400, defining cost function of multimode terminal
。
The formula of the cost function of the multimode terminal is as follows:
wherein the content of the first and second substances,
the bandwidth allocated to the ith terminal for the jth access point of the kth network,
the communication price of the kth access network is in the unit of RMB/s/Hz,
for the size of data transmitted by the ith terminal,
the transmission power allocated to the ith terminal for the jth access point of the kth network,
the k-th network energy price is in the unit of RMB/J,
the distance from the jth access point to the ith terminal of the kth network,
in order to be a path attenuation factor,
for noise power, i, j, k respectively represent the ith terminal, the jth access point of the access network, and the kth access network.
S500, traversing i, j, k in the effective coverage range, and calculating the access of each multimode terminal to different networks
And the values i, j and k respectively represent the ith terminal, the jth access point of the access network and the kth access network.
Specifically, i, j, k is traversed, and access of each multimode terminal to different networks is calculated
Values, including:
s501, where Fork =1: c, c is the number of all access networks, and traversing each access network k;
s502, For i =1: p, p is the number of multimode terminals, and each multimode terminal i is traversed;
S503，For j=1:qk，qktraversing each access point j of the kth network for the number of the access points of the kth network;
s504, calculating
A value;
the j loop ends, the i loop ends, and the k loop ends.
S600, solving argmin (for each terminal i)
) And returning the i, j and k values, namely that the j access point of the ith terminal accessing the kth network is the optimal access point. argmin () function for retrieval
Is measured.
Referring to fig. 3, the present invention also discloses a network access device for a converged network multimode terminal, comprising:
the initialization module 100 is configured to initialize parameters, where the parameters include a satellite position, communication prices of access networks, bandwidths of the access networks, a base station position, a WIFI position, a terminal position, a base station transmission power, and a WIFI transmission power;
the position determining module 200 is configured to determine a two-dimensional position of a base station, satellite orbit information, and a WIFI position based on a geographic basic information system;
the range calculation module 300 is configured to calculate, according to the two-dimensional position of the base station, the satellite orbit information, the WIFI position, and the transmission power of the base station and the WIFI, an effective coverage range of each base station and the WIFI by using a path attenuation model;
a cost definition module 400 for defining a cost function of the multimode terminal
。
The cost calculation module 500, in the effective coverage range, traverses i, j, k, calculates the access of each multimode terminal to different networks
The values are shown, wherein i, j and k respectively represent the ith terminal, the jth access point of the access network and the kth access network;
an optimal point determining module 600, configured to solve argmin (for each terminal i) ((ii))
) And returning the i, j and k values, namely that the j access point of the ith terminal accessing the kth network is the optimal access point.
In summary, the beneficial effects of the invention include: the method can quickly realize the selection of the optimal access network of the terminal under the heterogeneous network environment, has low cost and excellent performance, and is easy to realize.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
The technical scope of the present invention is not limited to the above description, and those skilled in the art can make various changes and modifications to the above-described embodiments without departing from the technical spirit of the present invention, and such changes and modifications should fall within the protective scope of the present invention.
Claims (4)
1. A network access method for a converged network multimode terminal is characterized by comprising the following steps:
initializing parameters, wherein the parameters comprise satellite positions, communication prices of access networks, bandwidths of the access networks, base station positions, WIFI positions, terminal positions, base station transmitting power and WIFI transmitting power;
determining a two-dimensional position, satellite orbit information and a WIFI position of a base station based on a geographic basic information system;
calculating effective coverage areas of the base stations and the WIFI by adopting a path attenuation model according to the two-dimensional position of the base station, the satellite orbit information, the WIFI position and the transmitting power of the base station and the WIFI;
defining a cost function for a multimode terminal
；
Wherein the content of the first and second substances,
the bandwidth allocated to the ith terminal for the jth access point of the kth network,
the communication price of the kth access network is in the unit of RMB/s/Hz,
for the size of data transmitted by the ith terminal,
the transmission power allocated to the ith terminal for the jth access point of the kth network is
The kth network energy price, in units of RMB/J,
the distance from the jth access point to the ith terminal of the kth network,
in order to be a path attenuation factor,
the noise power, i, j, k respectively represent the ith terminal, the jth access point of the access network and the kth access network;
traversing i, j, k within the effective coverage range, and calculating the access of each multimode terminal to different networks
A value;
for each terminal i, solve argmin: (
) Returning the i, j, k values, namely that the jth access point of the ith terminal accessing the kth network is the optimal access point;
wherein, the traversing i, j, k calculates each multimode terminalWith end access to different networks
Values, including: c, c is the number of all access networks, and each access network k is traversed; for i =1: p, p is the number of multimode terminals, and each multimode terminal i is traversed; for j =1: qk，qkTraversing each access point j of the kth network for the number of the access points of the kth network; computing
A value; ending the j cycle; ending the i loop; the k-cycle is ended.
2. The network access method of the converged network multimode terminal of claim 1, wherein the path attenuation model is:
wherein the content of the first and second substances,
in order to receive the power, the power is transmitted,
for transmit power, r is the distance of the transmitter from the receiver, and α is the path loss factor.
3. The network access method of the converged network multimode terminal, according to claim 1, wherein the geographic basic information system is a GPS positioning system.
4. A network access device for converged network multimode terminal, comprising:
the initialization module is used for initializing parameters, wherein the parameters comprise satellite positions, communication prices of all access networks, bandwidths of all access networks, base station positions, WIFI positions, terminal positions, base station transmitting power and WIFI transmitting power;
the position determining module is used for determining a two-dimensional position, satellite orbit information and a WIFI position of a base station based on a geographic basic information system;
the range calculation module is used for calculating the effective coverage range of each base station and WIFI by adopting a path attenuation model according to the two-dimensional position of the base station, the satellite orbit information, the WIFI position and the transmitting power of the base station and the WIFI;
a cost definition module for defining cost function of the multimode terminal
The formula of the cost function of the multimode terminal is as follows:
wherein the content of the first and second substances,
the bandwidth allocated to the ith terminal for the jth access point of the kth network,
the communication price of the kth access network is in the unit of RMB/s/Hz,
for the size of data transmitted by the ith terminal,
the transmission power allocated to the ith terminal for the jth access point of the kth network,
for the kth network energyThe price, unit is RMB/J,
the distance from the jth access point to the ith terminal of the kth network,
in order to be a path attenuation factor,
is the noise power;
a cost calculation module for traversing i, j, k and calculating the access of each multimode terminal to different networks in the effective coverage range
The values are shown, wherein i, j and k respectively represent the ith terminal, the jth access point of the access network and the kth access network; the traversal i, j, k includes: c, c is the number of all access networks, and each access network k is traversed; for i =1: p, p is the number of multimode terminals, and each multimode terminal i is traversed; for j =1: qk，qkTraversing each access point j of the kth network for the number of the access points of the kth network;
an optimal point determining module, configured to solve argmin (for each terminal i) ((ii))
) And returning the i, j and k values, namely that the j access point of the ith terminal accessing the kth network is the optimal access point.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110848783.9A CN113301632B (en) | 2021-07-27 | 2021-07-27 | Network access method and device for converged network multimode terminal |
| PCT/CN2021/113703 WO2023004900A1 (en) | 2021-07-27 | 2021-08-20 | Network access method and apparatus for converged network multi-mode terminal |
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| CN202110848783.9A CN113301632B (en) | 2021-07-27 | 2021-07-27 | Network access method and device for converged network multimode terminal |
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| KR101309614B1 (en) * | 2009-12-22 | 2013-09-23 | 한국전자통신연구원 | Smart all-in-one base station and operation method thereof |
| CN103002520B (en) * | 2012-06-06 | 2015-05-20 | 北京邮电大学 | Method for multi-mode terminal to select target networks with guaranteed quality of service |
| EP2974088B1 (en) * | 2013-03-15 | 2020-09-23 | Parallel Wireless Inc. | Methods of enabling base station functionality in a user equipment |
| US9326309B2 (en) * | 2013-04-30 | 2016-04-26 | Intellectual Discovery Co., Ltd. | Method and apparatus for supporting communication of multi-mode terminal |
| CN104125270B (en) * | 2014-07-03 | 2019-01-11 | 武汉中原电子集团有限公司 | A kind of Navigation in Navigable information transferring method based on heterogeneous network |
| WO2016106598A1 (en) * | 2014-12-30 | 2016-07-07 | 华为技术有限公司 | Method and apparatus for selecting access network |
| CN110730470B (en) * | 2019-10-24 | 2020-10-27 | 北京大学 | Mobile communication equipment integrating multiple access technologies |
| CN111182454B (en) * | 2020-02-24 | 2021-02-09 | 重庆邮电大学 | Intelligent access method for maximizing comprehensive benefits in heterogeneous wireless network |
| CN111818620B (en) * | 2020-06-05 | 2022-04-01 | 袁建涛 | Network selection method and system for multi-mode terminal |
| CN112118602B (en) * | 2020-08-27 | 2022-07-01 | 重庆邮电大学 | Vertical switching method based on interval type two fuzzy neural network |
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| CN113301632A (en) | 2021-08-24 |
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