CN111600791B - Converged calling method for broadband and narrowband communication system - Google Patents
Converged calling method for broadband and narrowband communication system Download PDFInfo
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- CN111600791B CN111600791B CN202010496087.1A CN202010496087A CN111600791B CN 111600791 B CN111600791 B CN 111600791B CN 202010496087 A CN202010496087 A CN 202010496087A CN 111600791 B CN111600791 B CN 111600791B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/64—Hybrid switching systems
- H04L12/6418—Hybrid transport
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/64—Hybrid switching systems
- H04L12/6418—Hybrid transport
- H04L2012/6475—N-ISDN, Public Switched Telephone Network [PSTN]
Abstract
The invention discloses a fusion calling method for a broadband and narrowband communication system, wherein user numbers in the broadband and narrowband communication system comprise an identification segment and a mapping segment, and the broadband mapping segment and the narrowband mapping segment have a one-to-one mapping relation; firstly, determining fused subscriber number sections of a broadband system and a narrowband system respectively, judging whether a calling number for initiating a calling terminal call is a normal calling number, if so, calling normally, and if not, updating the calling terminal subscriber number according to a fused calling principle, so that the fused calling can be realized. The invention can convert the subscriber numbers of the broadband system and the narrowband system, and realizes the fusion call of the broadband system and the narrowband system.
Description
Technical Field
The invention relates to the technical field of wide-narrow band converged communication, in particular to a converged calling method for a wide-narrow band communication system.
Background
DMR narrowband communication system: there has been a commercial history for decades, going from analog to digital. The method is widely applied to the professional communication fields of railways, public security, forestry, earthquake relief and the like. The method has the characteristics of no need of answering, good call timeliness, one-to-one correspondence, wide single station coverage range, strong disaster tolerance and the like.
LTE broadband communication system: with the continuous increase of LTE network coverage and the popularization of terminals, calls at any time and any place can be realized basically. And the data services such as pictures, videos and the like are easy to realize due to the advantage of bandwidth.
Along with the intelligent requirements of various industries, higher requirements are also put forward on a communication guarantee system. It is desirable to retain the functions of calling and short messages of the conventional interphone, and to transmit more data information such as pictures, videos, position information and the like on the basis of the functions. The DMR narrowband wireless communication system cannot carry the new data service due to the bandwidth limitation. While LTE is a communication system designed for the public domain, and although it has significant advantages of bandwidth and data transmission, its network elements are numerous, the system is complex, and in extreme cases it is easily damaged, and cannot provide basic call service.
Therefore, the broadband and narrowband converged communication system becomes the necessary choice: within a particular area, a narrowband system is deployed to ensure that even in extreme cases, basic call services are still available. Meanwhile, a narrow-band system and a broadband are interconnected, and the wide coverage and the large bandwidth of a public network are utilized, so that real-time communication with objects in a specific range at any place and at any time is realized under most conditions. Since the wideband system and the narrowband system are independent complete communication systems, respective numbering schemes also exist. When the two are interconnected, collision is easy to occur, and call is affected.
Disclosure of Invention
The invention aims to: aiming at the problems that the interconnection and intercommunication of a broadband system and a narrowband system are easy to generate conflict and affect calling in the prior art, the converged calling method for the broadband and narrowband communication system is provided, by judging whether a calling number dialed by a calling end is a number in the system, and when the calling number does not belong to the system, updating the user number of the calling end to enable the user number to call the number in another system, the converged calling of the broadband system and the narrowband system is realized.
In order to achieve the purpose, the invention adopts the technical scheme that:
a converged call method for a broadband and narrowband communication system, comprising:
s1, all the user numbers in the broadband and narrowband communication system comprise an identification segment and a mapping segment, the bits of the broadband mapping segment and the narrowband mapping segment are the same, and the broadband mapping segment and the narrowband mapping segment have a one-to-one mapping relation; selecting a broadband fusion user number section and a narrowband fusion user number section for fusing calls in a broadband system and a narrowband system respectively;
s2, receiving the calling information sent by the calling end, and extracting the calling number and the user number of the calling end in the calling information;
s3, judging whether the calling number belongs to a normal calling number, if so, carrying out normal calling, and if not, entering the next step;
s4, updating the user number of the originating calling terminal according to the fusion calling principle, so that the originating calling terminal can perform fusion calling; the converged call principle comprises:
replacement of the identified segment: if the initiating calling end is a broadband system user, when a call is initiated to a narrow-band user, replacing the identification segment of the initiating calling end user number with a narrow-band fusion identification segment, if the initiating calling end is a narrow-band system user, when a call is initiated to a broadband user, replacing the identification segment of the initiating calling end user number with a broadband fusion identification segment;
mapping of the mapping segment: if the initiating calling end is a broadband system user, when a call is initiated to a narrow-band user, updating a mapping section of the number of the initiating calling end user into a narrow-band mapping section which accords with the mapping relation with the mapping section of the number of the initiating calling end user; if the initiating calling end is a narrow-band system user, when a call is initiated to a broadband user, updating a mapping section of the initiating calling end user number into a broadband mapping section which accords with the mapping relation with the mapping section of the initiating calling end user number;
the wideband fusion identification segment is the identification segment of the wideband fusion user number segment, and the narrowband fusion identification segment is the identification segment of the narrowband fusion user number segment.
As a preferable embodiment of the present invention, the step S1 includes:
s11, in the broadband user total number section and the narrow-band user total number section, respectively determining the user number sections used by the broadband system and the narrow-band system for calling, and obtaining the broadband user number section and the narrow-band user number section;
s12, selecting the wide band fusion user number section and the narrow band fusion user number section for fusion calling respectively in the wide band user number section and the narrow band user number section.
As the preferred scheme of the invention, the number segment range of the number segment of the narrow-band fusion user is smaller than the total number segment of the narrow-band user.
As a preferred scheme of the present invention, the number segment range of the number segment of the broadband convergence subscriber is smaller than the total number segment of the broadband subscriber.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. updating the user number of the initiating calling end by utilizing the divided broadband fusion user number section and the narrow band fusion user number section, converting the user number of the initiating calling end into a user number which can be called in a system where a called end is positioned, and realizing communication intercommunication of a broadband system and a narrow band system. In the wide and narrow band communication system, real-time communication can be realized with objects in a specific range at any place and any time, and fusion calling in the wide and narrow band communication system is realized.
2. The invention makes the broadband system and the narrowband system not need to greatly modify the formed number distribution rule, and only needs to reserve part of user number sections for the use of the other party. By the method, the conversion of the user number is automatically realized, the system conflict with the system of the called terminal is avoided, most characteristics of the user number of the calling terminal are reserved, and the method is easy to distinguish and identify.
Drawings
FIG. 1 is a flow chart of the method of the present invention.
Fig. 2 is a block diagram of a passenger station broadband and narrowband communication system provided by an embodiment of the present invention.
Fig. 3 is a diagram illustrating number mapping when a narrowband is called by a broadband according to an embodiment of the present invention.
Fig. 4 is a diagram illustrating number mapping when a narrowband call is broadband according to an embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
Referring to fig. 1, a converged call method for a broadband and narrowband communication system includes:
s1; all the user numbers in the wide-narrow band system comprise an identification segment and a mapping segment, the number of bits of the wide-band mapping segment is the same as that of the narrow-band mapping segment, and the wide-band mapping segment and the narrow-band mapping segment have a one-to-one mapping relation; selecting broadband fusion user number segment and narrow band fusion user number segment for fusion call in broadband system and narrow band system respectively
S11, in the broadband user total number section and the narrow-band user total number section, respectively determining the user number sections used by the broadband system and the narrow-band system for calling, and obtaining the broadband user number section and the narrow-band user number section;
s12, selecting the wide band fusion user number section and the narrow band fusion user number section for fusion calling respectively in the wide band user number section and the narrow band user number section.
Referring to fig. 2, a schematic diagram of a passenger station broadband and narrowband communication system is shown. The wide-narrow-band system of the passenger station and the DMR narrow-band wireless communication system cover the whole station, so that the basic passenger service communication requirement can still be met under extreme conditions, an LTE wide-band system is additionally built, and a communication transmission platform is provided for the intelligent passenger station, wherein the LTE system can be a self-built LTE system and can also be an LTE system depending on an operator. The wide-narrow-band communication system of the guest station described in this embodiment adopts a self-established LTE system, and the fusion call method described in this embodiment is applied to this system, where in this wide-narrow-band communication system, the length of the total number of users of the DMR narrow-band system is n, and the length of the total number of users of the LTE wide-band system is m. n may or may not be equal to m.
In the passenger station broadband and narrowband communication system, the full number field which can be used by the narrowband system is 000 … … 000(n 0) to 999 … … 999(n 9), the field which is actually used by the narrowband system for calling can be a partial field in the full number field, and the system can select narrowband user number segments, such as 1000 … … (n-1 0) to 1999 … … (n-1 9), according to needs. The number segments used for the converged call are defined as Z1Z2 … Zn-c0 … 0(c 0) -Z1Z 2 … Zn-c9 … 9(c 9), n-c is more than or equal to 1, namely Z1Z2 … Zn-c is more than or equal to the total number segments of the users of the narrow-band system, therefore, at least n-c is more than or equal to 1. When calling, the system can identify the fused subscriber number by judging whether the identification segment of the subscriber number of the calling end is the narrow-band fusion identification segment Z1Z2 … Zn-c. If the user number segment of the DMR narrowband system is 8000000-9999999, n is 7, and n-c is 3 according to the requirement of the number of the users who call the DMR system in a converged manner, the number segment of the narrowband converged user is Z1Z2Z 30000-Z1Z 2Z 39999, and the user can define the number segment by himself between 8000000-9999999, and if the number segment of the narrowband converged identification segment Z1Z2Z3 is 999, 9990000-9999999 is defined as the number segment of the converged user.
The full number field available to the broadband system is 000 … … 000(m 0) to 999 … … 999(m 9), the field actually used by the broadband system for the call may be a partial number segment in the full number field, and the system may select the broadband user number segments as desired, for example, 2000 … … (m-1 0) to 2999 … … (m-1 9). The broadband fusion user number segment is K1K2 … Km-c0 … 0(c 0) -K1K 2 … Km-c9 … 9(c 9), m-c is more than or equal to 1, the range of the fusion user number segment is less than the total number segment of users of the broadband system, so that at least m-c is more than or equal to 1. When calling, the system can identify the fused subscriber number by judging whether the identification segment of the subscriber number of the calling end is the broadband fusion identification segment K1K2 … Km-c. Supposing that the user number segment of the broadband system is 2500000-2599999, m is 7, and the fused user number segment is smaller than the available total user number segment, so that m-c is greater than or equal to 2 at the moment, in order to ensure the normal calling number segment of the user to be used, according to the actual requirement, m-c is 3, K1K2K 30000-K1K 2K39999 are the fused user number segments of the broadband system, and if the broadband fused identification segment K1K2K3 is 259, the fused user number segment is 2590000-2599999.
When a narrowband system user calls a broadband system user, the narrowband system user number is A1A2 … An-c L1L2 … Lc, A1A2.. An-c is An identification section of the user number, L1L2 … Lc is a mapping section, and the mapping number in the broadband system is K1K2 … Km-cW1W2 … Wc (m bits in total), namely the mapping section L1L2 … Lc of the narrowband system user number is mapped to the mapping section W1W2 … Wc of the broadband system; similarly, when the broadband system user B1B2 … Bm-cW1W2 … Wc calls the narrowband system user, the mapping segment W1W2 … Wc of the broadband system user number is mapped to the mapping segment L1L2 … Lc of the narrowband system, and the mapping number of the mapping segment in the narrowband system is Z1Z2 … Zn-cL1L2 … Lc (n bits).
Wherein:
(1)L1L2…Lc∈[00…0c，99…9c]，W1W2…Wc∈[00…0c，99…9c]；
(2) the narrowband mapping segment L1L2 … Lc has a unique correspondence with the wideband mapping segment W1W2 … Wc.
(3) The specific mapping rules of the narrow-band mapping segment L1L2 … Lc and the wide-band mapping segment W1W2 … Wc are not restricted, and only the unique corresponding relation is satisfied.
For example: taking c as 2, the mapping relationship between the narrowband mapping segment L1L2 and the wideband mapping segment W1W2 is illustrated, and the part L1L2 of the narrowband system is taken as
Similarly, the part W1W2 of the broadband system is taken as
The mapping relationship between L1L2 and W1W2 can be:
the mapping relationship may also be
L1L2 and W1W2 may satisfy the conditions (1), (2) and (3) above.
S2, receiving the calling information sent by the calling end, and extracting the calling number and the user number of the calling end in the calling information;
s3, judging whether the calling number belongs to a normal calling number, if so, carrying out normal calling, and if not, entering the next step;
s4, updating the user number of the originating calling terminal according to the fusion calling principle, so that the originating calling terminal can perform fusion calling; the converged call principle comprises:
replacement of the identified segment: if the initiating calling end is a broadband system user, when a call is initiated to a narrow-band user, replacing the identification segment of the initiating calling end user number with a narrow-band fusion identification segment, if the initiating calling end is a narrow-band system user, when a call is initiated to a broadband user, replacing the identification segment of the initiating calling end user number with a broadband fusion identification segment;
mapping of the mapping segment: if the initiating calling end is a broadband system user, when a call is initiated to a narrow-band user, updating a mapping section of the number of the initiating calling end user into a narrow-band mapping section which accords with the mapping relation with the mapping section of the number of the initiating calling end user; if the initiating calling end is a narrow-band system user, when a call is initiated to a broadband user, updating a mapping section of the initiating calling end user number into a broadband mapping section which accords with the mapping relation with the mapping section of the initiating calling end user number;
the wideband fusion identification segment is the identification segment of the wideband fusion user number segment, and the narrowband fusion identification segment is the identification segment of the narrowband fusion user number segment.
The normal call is a call in the same system, namely a narrow-band user calls a narrow-band user or a wide-band user calls a wide-band user. The converged call is a call across systems, namely a narrowband user calls a broadband user or a broadband user calls a narrowband user.
According to the wide-band and narrow-band communication system of the guest station, when the call is normal, the DMR base station receives the call request of the mobile terminal and uploads the call request to the DMR center server, the LTE base station receives the call request of the mobile terminal and uploads the call request to the LTE server, the DMR center server and the LTE server judge the call number in the call request received by the DMR center server and the LTE server respectively, and if the call number is the normal call number, the call can be carried out on the call number in the call request.
When a call is converged, a DMR base station receives a call request of a mobile terminal and uploads the call request to a DMR center server, an LTE base station receives the call request of the mobile terminal and uploads the call request to an LTE server, the DMR center server and the LTE server judge the call number in the call request received by the DMR center server and judge the call number in the call request received by the LTE center server, if the call request is not the number of a normal call, the DMR center server and the LTE server upload the call request to the convergence server, and the convergence server updates the user number of a calling terminal in the call request according to a convergence call principle and then sends the user number to a corresponding system for calling.
Referring to fig. 3, when the broadband system calls the narrowband system, if the currently used calling number of the DMR narrowband side is 7 digits, the range is 8000000 to 9999999. In consideration of actual use conditions, 9990000-9999999 are drawn for fusion, namely n is 7, c is 4, and the narrow-band fusion recognition segment Z1Z2Z3 is 999. When a mobile station on the public network side (broadband side) initiates a call, the number ID of the user at the initiating calling end: 2500012, the subscriber number calls an arbitrary number on the narrowband side, because the numbers on the broadband side and the narrowband side are different, the broadband center cannot identify the number, the call request of the mobile station is sent to the narrowband center through the fusion server, according to the fusion subscriber number segment preset by the narrowband system, the mapping segment bit number c of the subscriber number of the mobile station is 4, the lower 4 bits are taken, the broadband mapping segment W1W2W3W4 is 0012, wherein the narrowband mapping segment whose broadband mapping segment W1W2W3W4 is 0012 conforms to the mapping relationship is L1L2L3L4 is 0012, therefore, the mapping segment of the mobile station subscriber number is updated to L1L2L3L4 is 0012, and the narrowband fusion identification segment 999 is added on the upper bit, and a new ID is formed: 9990012, the subscriber number 2500012 of the broadband side station is converted to a new ID, and the station in the broadband system can call any number in the narrowband system using the new ID.
Referring to fig. 4, when the narrowband system calls the broadband system, if the number on the broadband side is composed of a 2-digit enterprise number plus a 5-digit subscriber number, the number range for calling under the enterprise 25 is 2500000 to 2599999, for example. In actual use, the lower number is already occupied, so 259 is reserved from the upper number segment for the use of the fused call, i.e. m is 7, c is 4, and the wideband fusion identification segment K1K2K3 is 259. When a narrowband system handset with subscriber number 8888123 makes a call, its subscriber number will be mapped to 2598123, and so on. In this embodiment, if the mapping segment L1L2L3L4 of the mobile station is 8123, and the mapping segment of the mobile station user number is updated to the broadband mapping segment corresponding to the mapping relationship with the mobile station mapping segment L1L2L3L4 is 8123, the updated mobile station mapping segment is the broadband mapping segment W1W2W3W4 is 8123, and the broadband fusion identification segment is complemented in high order, that is, a new ID is generated: 2598123, the mobile station can make a call in the broadband system with the new ID. Wherein the narrowband mapping segment and the wideband mapping segment satisfy a unique corresponding mapping relationship
In summary, the present invention makes the broadband system and the narrowband system not need to greatly modify the formed number allocation rule, and only needs to reserve part of the user number segments for the other party to use. By the method, the conversion of the user number is automatically realized, the system conflict with the system of the called terminal is avoided, most characteristics of the user number of the calling terminal are reserved, and the method is easy to distinguish and identify. In the wide-band and narrow-band communication system, the mutual calling between the users of the wide-band system and the narrow-band system can be realized.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (4)
1. A converged call method for use in a broadband-narrowband communication system, comprising:
s1, all the user numbers in the broadband and narrowband communication system comprise an identification segment and a mapping segment, the bits of the broadband mapping segment and the narrowband mapping segment are the same, and the broadband mapping segment and the narrowband mapping segment have a one-to-one mapping relation; selecting a broadband fusion user number section and a narrowband fusion user number section for fusing calls in a broadband system and a narrowband system respectively;
s2, receiving the calling information sent by the calling end, and extracting the calling number and the user number of the calling end in the calling information;
s3, judging whether the calling number is a normal calling number, if so, carrying out normal calling, and if not, entering the next step;
s4, updating the user number of the originating calling terminal according to the fusion calling principle, so that the originating calling terminal can perform fusion calling; the converged call principle comprises:
replacement of the identified segment: if the initiating calling end is a broadband system user, when a call is initiated to a narrow-band user, replacing the identification segment of the initiating calling end user number with a narrow-band fusion identification segment, if the initiating calling end is a narrow-band system user, when a call is initiated to a broadband user, replacing the identification segment of the initiating calling end user number with a broadband fusion identification segment;
mapping of the mapping segment: if the initiating calling end is a broadband system user, when a call is initiated to a narrow-band user, updating a mapping section of the number of the initiating calling end user into a narrow-band mapping section which accords with the mapping relation with the mapping section of the number of the initiating calling end user; if the initiating calling end is a narrow-band system user, when a call is initiated to a broadband user, updating a mapping section of the initiating calling end user number into a broadband mapping section which accords with the mapping relation with the mapping section of the initiating calling end user number; the values of the broadband mapping section and the narrowband mapping section before and after updating are the same;
the wideband fusion identification segment is the identification segment of the wideband fusion user number segment, and the narrowband fusion identification segment is the identification segment of the narrowband fusion user number segment.
2. The method according to claim 1, wherein the step S1 includes:
s11, in the broadband user total number section and the narrow-band user total number section, respectively determining the user number sections used by the broadband system and the narrow-band system for calling, and obtaining the broadband user number section and the narrow-band user number section;
s12, selecting the wide band fusion user number section and the narrow band fusion user number section for fusion calling respectively in the wide band user number section and the narrow band user number section.
3. The method of claim 2 wherein the number segment range of the narrowband fused user number segments is less than the narrowband total user number segments.
4. The method of claim 2, wherein the number segment range of the wideband converged subscriber number segment is smaller than the wideband total subscriber number segment.
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| CN112492532B (en) * | 2020-11-18 | 2021-12-24 | 海能达通信股份有限公司 | Interconnection method and device for wide and narrow band system |
| CN113225686B (en) * | 2021-03-30 | 2023-01-10 | 中铁二院工程集团有限责任公司 | UWB-based intelligent calling system and method in indoor environment |
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