CN109495852B - Radio station calling system with digital-analog compatibility - Google Patents
Radio station calling system with digital-analog compatibility Download PDFInfo
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- CN109495852B CN109495852B CN201910015774.4A CN201910015774A CN109495852B CN 109495852 B CN109495852 B CN 109495852B CN 201910015774 A CN201910015774 A CN 201910015774A CN 109495852 B CN109495852 B CN 109495852B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W76/10—Connection setup
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Abstract
The invention discloses a radio station calling system with digital-analog compatibility, which is used for realizing smooth upgrade of radio station equipment from an analog technology to a digital technology. In the radio station calling system, calling radio station equipment is used for generating a DSC calling signaling according to a voice communication mode supported by the calling radio station equipment and sending the DSC calling signaling to called radio station equipment through a DSC channel; the called station equipment is used for receiving DSC call signaling; generating a DSC response signaling according to a voice communication mode supported by called radio station equipment, and sending a DSC call signaling to calling radio station equipment through a DSC channel; wherein the voice communication mode includes: an analog voice communication mode, and/or a digital voice communication mode; the DSC call signaling and the DSC response signaling at least have one signaling comprising: a voice communication mode indication field for indicating that an analog voice communication mode or a digital voice communication mode is employed.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a radio station calling system with digital-analog compatibility.
Background
In a traditional fishery radio station, a Digital Selective Call (DSC) signaling is used, which may also be referred to as a Digital Selective Call signaling, and the DSC signaling supports signaling interaction between a caller and a callee, when a calling party radio station initiates a Call, a DSC Selective Call message is first sent, and when a called party radio station receives the DSC Selective Call message, a response needs to be made to the Call of the calling party radio station, so that the Call is switched to a specified Call channel, and then voice communication is performed.
Because of the limitation of the technical conditions at that time, the fishery radio station does not support the digital voice communication mode, and adopts simple and practical Frequency Modulation (FM) technology to realize the transmission of analog voice. Although the traditional analog FM modulation method is simple, the performance is limited to a certain extent, for example, the voice quality is easily interfered, any additive or multiplicative interference introduced in the transmission process cannot be removed, and in addition, the receiving sensitivity is low, so that the transmission distance is short, and the user needs are difficult to meet.
With the development of digital communication technology, low bit rate voice vocoders are widely used, and even open source vocoders exist, and under the situation, the upgrading of the traditional analog fishery radio station to the digital mode is a trend.
In the prior art, because the stock of the analog fishery radio station is large and the updating period is long, in the process of upgrading the fishery radio station from the analog mode to the digital mode, the compatibility problem of the new and old modes must be fully concerned, but how to realize the compatibility of the new fishery radio station with the traditional analog fishery radio station still remains the problem which is not solved in the field.
Disclosure of Invention
The invention aims to provide a radio station calling system with digital-analog compatibility, which is used for realizing smooth upgrade of radio station equipment from an analog technology to a digital technology.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a radio station calling system with digital-analog compatibility, which comprises: a calling station device and a called station device, the calling station device establishing a communication connection through a digital selective call DSC channel, wherein,
the calling radio station equipment is used for generating a DSC call signaling according to a voice communication mode supported by the calling radio station equipment and sending the DSC call signaling to the called radio station equipment through the DSC channel;
the called radio station equipment is used for receiving the DSC call signaling sent by the calling radio station equipment through the DSC channel; generating a DSC response signaling according to a voice communication mode supported by the called radio station equipment, and sending the DSC call signaling to the calling radio station equipment through the DSC channel;
wherein the voice communication mode comprises: an analog voice communication mode, and/or a digital voice communication mode;
the DSC call signaling and the DSC response signaling at least have one signaling comprising: a voice communication mode indication field for indicating that the analog voice communication mode or the digital voice communication mode is employed.
After the technical scheme is adopted, the technical scheme provided by the invention has the following advantages:
in the radio station call system with digital-analog compatibility provided in the embodiment of the present invention, a calling radio station device sends a DSC call signaling, a called radio station device sends a DSC response signaling, and at least one of the DSC call signaling and the DSC response signaling includes: a voice communication mode indication field for indicating that an analog voice communication mode or a digital voice communication mode is employed. In the embodiment of the present invention, the voice communication mode indication field in the DSC signaling (including DSC call signaling or DSC answer signaling) may be configured only according to the voice communication mode supported by the station device. The embodiment of the invention is different from the DSC signaling in the prior art, and the smooth upgrade of the radio station equipment from the analog technology to the digital technology can be realized through the voice communication mode indication field additionally added in the DSC signaling.
Drawings
Fig. 1 is a schematic diagram illustrating a configuration of a radio paging system with digital-analog compatibility according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a frame structure of original DSC signaling according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a frame structure after DSC signaling is extended according to an embodiment of the present invention;
fig. 4 is a schematic diagram of another frame structure after DSC signaling is extended according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of an interaction flow of a simulation fishery radio station calling a digital fishery radio station according to an embodiment of the present invention;
FIG. 6 is a schematic view of an interaction flow between a digital fishery radio station and a simulated fishery radio station according to an embodiment of the present invention;
fig. 7 is a schematic view of an interaction flow between a digital fishery radio station and a digital fishery radio station according to an embodiment of the present invention.
Detailed Description
The embodiment of the invention provides a radio station calling system with digital-analog compatibility, which is used for realizing smooth upgrade of radio station equipment from an analog technology to a digital technology.
In order to make the objects, features and advantages of the present invention more obvious and understandable, 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, and it is apparent that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one skilled in the art from the embodiments given herein are intended to be within the scope of the invention.
The terms "comprises" and "comprising," and any variations thereof, in the description and claims of this invention and the above-described drawings are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of elements is not necessarily limited to those elements, but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The following are detailed below. The embodiment of the radio station calling system with digital-analog compatibility can be applied to a system scene for signaling interaction based on DSC. Referring to fig. 1, the radio station call system with digital-analog compatibility (in the following embodiments, simply referred to as a radio station call system) provided by the present invention includes at least two kinds of radio station devices, where two kinds of radio station devices interact with each other, such as making a call and answering, and the two kinds of radio station devices may be a calling radio station device and a called radio station device, for example. The radio station equipment provided by the embodiment of the invention has an application range including all radio station equipment in a voice communication mode which uses DSC (digital selective calling) or performs call signaling interaction in a similar mode, for example, calling radio station equipment and called radio station equipment can be fishery radio station equipment, and for example, the calling radio station equipment and the called radio station equipment can also be Very High Frequency (VHF) FM radio stations which use DSC for selective calling. And may be an analog station device and a digital station device depending on the difference in the supported voice communication modes.
In the embodiment of the present invention, a calling station device establishes a communication connection with a called station device through a Digital Selective Call (DSC) channel, for example, the DSC channel may be a communication channel established between two station devices according to "general technical specification for fishery ship fm wireless phones (27.5 MHz-39.5 MHz)", when two station devices perform signaling interaction using the DSC channel, both the uplink and downlink communications may complete the interaction through DSC signaling, and the DSC signaling may also be referred to as DSC message.
In the radio station call system provided in the embodiment of the present invention, the following signaling interaction is performed between the calling radio station device and the called radio station device:
the calling station equipment is used for generating a DSC call signaling according to a voice communication mode supported by the calling station equipment and sending the DSC call signaling to the called station equipment through a DSC channel;
the called radio station equipment is used for receiving a DSC call signaling sent by the calling radio station equipment through a DSC channel; generating a DSC response signaling according to a voice communication mode supported by called radio station equipment, and sending a DSC call signaling to calling radio station equipment through a DSC channel;
wherein the voice communication mode includes: an analog voice communication mode, and/or a digital voice communication mode;
the DSC call signaling and the DSC response signaling at least have one signaling comprising: a voice communication mode indication field for indicating that an analog voice communication mode or a digital voice communication mode is employed.
In the embodiment of the present invention, the analog voice communication mode is a voice mode supported by the radio station device in the prior art, and is used for realizing the delivery of analog voice.
In this embodiment of the present invention, DSC call signaling and DSC answer signaling may be referred to as DSC signaling, or simply referred to as signaling, where at least one of the DSC call signaling and DSC answer signaling includes: a voice communication mode indication field for indicating a voice communication mode supported by the station device, e.g., a voice communication mode indication field for indicating that an analog voice communication mode or a digital voice communication mode is employed.
In the embodiment of the invention, calling and answering are completed between calling station equipment and called station equipment through DSC signaling, and in the current general technical specification of fishery ship FM radio telephones (27.5 MHz-39.5 MHz), fishery stations all use analog FM to carry out voice communication in a unified way, but do not adopt a digital way to carry out voice communication. The unified frame structure of DSC signaling may include: a lattice field, a Transmit (TX)/Receive (RX) sequence field, a DSC message body field, and an end of frame identification field. In addition to including the above fields, the DSC signaling may also include: a voice communication mode indication field for indicating that either an analog voice communication mode or a digital voice communication mode is employed.
Wherein, the lattice field is at least 20 continuous alternating 0 and 1 digit sequences. TX sequence: 1011111001 (i.e., the first 7 bits are 125 (in reverse order), and the last 3 bits are the number of 0's in the first 7 bits). RX sequence: a total of 8, 111(111101001), 110(0111011010), 109 (1011010), 108(0011011011), 107(1101011010), 106(0101011011), 105(1001011011), 104(0001011100), respectively. The end-of-frame identifier field refers to an end identifier of a DSC signaling, for example, the end-of-frame identifier field may be 8 bits, and a specific value of the end-of-frame identifier field depends on an application scenario.
Fig. 2 is a schematic diagram of a frame structure of original DSC signaling according to an embodiment of the present invention. The unified frame structure of DSC signaling may include: lattice field, TX/RX sequence field, DSC message body field, HXIYHHHI field. Wherein, H is used to identify different types of frames in the DSC frame and can also be used as the DSC frame ending mark. H has 3 values to distinguish different DSC message types, which are 117(1010111010), 122(0101111010), 127(1111111000), respectively. The I value is the corresponding column check value.
For the original DSC signaling, in a frame structure of the DSC signaling, the beginning of a DSC frame is identified by 20 alternate 0/1 lattices, and the end of a DSC frame is identified by an hxiyhhl, where H denotes the type of the DSC frame, and there are three types of H values to choose from, for example: 117. 122, and 127. When the DSC deframing procedure scans this combination of HXIYHHHI, it can be confirmed that there is the end of one DSC frame and that the following data is not being processed unless the start identification sequence of another DSC frame is detected.
In the embodiment of the invention, the DSC signaling is a variable-length message, and the message lengths of various types of DSC signaling are different. For DSC signaling transmission, the existing specification does not specify whether gaps are allowed between 2 consecutive adjacent DSC frames, but only specifies the number of times that a DSC must continuously transmit, and the specification also does not specify whether the preamble sequence of a DSC frame must be a sequence of 20 0/1 alternates, i.e., 20 or more than 20 sequences of 0 and 1 alternates, and the protocol only specifies that 20 or more than 20 sequences must be alternated. The gap is the time interval between two adjacent DSC messages, the DSC signaling length is not specified in general technical specification for fishery ship FM radio telephones (27.5 MHz-39.5 MHz), the DSC signaling length can be transmitted end to end, or a short time interval is provided, and the transmission content and the transmission time during the period are not strictly specified.
By utilizing the frame structure characteristics of the DSC signaling, the embodiment of the invention can properly expand the frame structure of the DSC signaling to indicate whether the current service is in an analog voice communication mode or a digital voice communication mode. In the following embodiments, the analog voice communication mode may also be referred to as an analog system, and the digital voice communication mode may also be referred to as a digital system.
The existence of at least one signaling in the DSC call signaling and the DSC answer signaling further comprises: an end-of-frame identification field, wherein,
the voice communication mode indication field is adjacent to the end of frame identification field and the voice communication mode indication field is after the end of frame identification field.
That is, the voice communication mode indication field is extended based on the frame structure of the original DSC signaling, and a voice communication mode indication field is added at the end of the frame structure of the original DSC signaling (i.e., the frame end identification field), in this implementation scenario, the frame end identification field is not an identification of DSC signaling end, but is used to indicate that if a new field is extended after the frame end identification field, the new field is the voice communication mode indication field, in the prior art, an analog radio station device may only parse the frame structure of the original DSC signaling, and after parsing the original DSC signaling, a digital radio station device may further parse the voice communication mode indication field added after the frame end identification field, so as to determine the voice communication mode adopted by the other radio station device according to the indication of the voice communication mode indication field, and implement smooth upgrade of the radio station device from the analog technology to the digital technology, the method can ensure that the radio station equipment of the two systems can carry out normal voice communication.
In some embodiments of the present invention, the values of the voice communication mode indication field include two types: a first bit sequence and a second bit sequence, wherein,
if the value of the voice communication mode indication field is the first bit sequence, indicating to adopt an analog voice communication mode; or the like, or, alternatively,
if the value of the voice communication mode indication field is a second bit sequence, indicating that a digital voice communication mode is adopted;
the first bit sequence consists of two continuous first fields with the same value;
the second bit sequence consists of two consecutive second fields having the same value.
As shown in fig. 3 and fig. 4, schematic diagrams of two frame structures after DSC signaling is extended are provided for the embodiments of the present invention. DD in the figure is a first bit sequence indicating the use of an analog voice communication mode. AA in the figure is a second bit sequence indicating the use of the digital voice communication mode.
In the embodiment of the invention, the first bit sequence consists of two continuous first fields with the same value; the second bit sequence consists of two consecutive second fields having the same value. For example, if the first field is D, the first bit sequence is two D, and if the second field is a, the second bit sequence is two a. The addition of two DDs or AAs can reduce erroneous judgment, and when one field transmits an error, the judgment can be made through the other field.
As illustrated in fig. 3 and 4, for digital-analog compatible fishery radio, when communication in digital mode is desired, a DD field is appended after a standard DSC frame, and when communication in analog mode is desired, an AA field is appended after the standard DSC frame, as can be seen from the figure, under the condition that the original DSC message structure is kept unchanged, two characters (7 bits) and a check value (3 bits) thereof are appended at the end of the original DSC signaling, and 20 bits of additional messages are counted, and the addition of the additional messages does not have any influence on the original DSC framing and unframing processes.
For example, the DD bit sequence is as follows: 00100011010010001101, the first 7 bits correspond to the character D, representing digital, and the last 3 bits correspond to the number of 0's in the character D;
the AA bit sequence is as follows: 10000011011000001101, the first 7 bits correspond to character A, indicating analog, and the last 3 bits correspond to the number of 0's in character A.
For 10-bit fields, the first 7 bits are original information, the last 3 bits are codes of 0 number in the first 7 bits, theoretically, any two different field identifications can be selected for the DD and AA fields, but 00100011010010001101 (DD) 10000011011000001101 (AA) is optimally selected here to avoid misjudgment when frame head and frame tail identification is performed.
In the DSC frame, in order to facilitate receiver error detection and correction, the specification provides that each 7-bit character is extended to 10 bits, the first 7 bits are the original information (in reverse order), and the last 3 bits are 0 out of the first 7 bits, for example 1111111000 is actually transmitted when transmitting 127, and 0000000111 is actually transmitted when transmitting 0.
When the traditional analog fishery station receives the DSC signaling in the extended form, the information except the DD or AA field is normally received, and no treatment is given to the DD or AA field.
For all calls which do not need to be answered, such as emergency calls, weather calls, full calls, group calls, sea calls and the like, the called party does not need to answer the calls, so that the exchange of call type information cannot be carried out, therefore, under the current use environment mainly based on the simulation fishery radio station, the conversation is carried out according to the traditional and unified simulation system, and all the calls are switched to a digital mode at proper time.
For all call requests needing to be answered, the expanded DSC message can realize intercommunication (only in an analog mode) between the digital fishery radio station and the analog fishery radio station, and simultaneously can ensure that voice communication can be carried out between the digital fishery radio stations according to the choice of a user or in an analog mode or a digital mode, thereby realizing smooth upgrade of the fishery radio station from an analog technology to a digital technology.
As can be seen from the foregoing example, the calling station device may be an analog station device, and the called station device may be a digital station device. Or the calling station device may be a digital station device and the called station device may be an analog station device. Or the calling station device and the called station device may be digital station devices. Based on the different system architectures, the following description is respectively given by way of example.
In some embodiments of the present application, when the calling radio station device is an analog radio station device, the calling radio station device adopts an analog voice communication mode, and a DSC call signaling does not include a voice communication mode indication field;
when the called radio station equipment is digital radio station equipment, the called radio station equipment adopts a digital voice communication mode and is also used for switching from the digital voice communication mode to an analog voice communication mode; the DSC response signaling includes a voice communication mode indication field, which is specifically used to indicate that the called station device adopts an analog voice communication mode.
Fig. 5 is a schematic view of an interaction flow of a simulation fishery radio station calling a digital fishery radio station according to an embodiment of the present invention. For a traditional analog fishery radio station, framing and unframing can be carried out according to a traditional DSC signaling format, a DD or AA field added behind a frame cannot be received or explained, only a digital-analog compatible fishery radio station supporting an extended DSC signaling can receive and explain the DD or AA field, and corresponding logic action is generated, or the system is switched, or the system is kept. For a station device (e.g., a DSC receiver) following a conventional system, only the conventional system is used for receiving, and only the conventional DSC signaling is used for replying. For the digital station equipment, the voice communication mode indication field added at the end of the DSC signaling is parsed.
In this scenario shown in fig. 5, the analog fishery radio station sends a DSC call in a standard format, and after receiving the DSC call, the digital fishery radio station DSC receiver determines that the call is sent by the analog fishery radio station and can only communicate with the analog fishery radio station in an analog manner, so that no matter what mode the current digital fishery radio station is in, the digital fishery radio station DSC receiver needs to switch to the analog format, and then sends a DSC signaling in a standard format or an extended format (AA extension), and after receiving the message, the analog fishery radio station performs corresponding processing, and finally the two parties communicate in an analog manner.
In some embodiments of the present application, when the calling radio station device is a digital radio station device, the calling radio station device adopts an analog voice communication mode, a DSC call signaling includes a voice communication mode indication field, and the voice communication mode indication field is specifically used for indicating that the calling radio station device adopts the analog voice communication mode;
when the called radio station equipment is analog radio station equipment, the called radio station equipment adopts an analog voice communication mode, and a DSC response signaling does not comprise a voice communication mode indication field.
In some embodiments of the present application, when the calling radio station device is a digital radio station device, the calling radio station device adopts a digital voice communication mode, the DSC call signaling includes a voice communication mode indication field, and the voice communication mode indication field is specifically used for indicating that the calling radio station device adopts the digital voice communication mode;
when the called radio station equipment is analog radio station equipment, the called radio station equipment adopts an analog voice communication mode, and a DSC response signaling does not comprise a voice communication mode indication field;
the calling station equipment is also used for receiving a DSC response signaling sent by the called station equipment; and when the DSC response signaling does not comprise the voice communication mode indication field, switching from the digital voice communication mode to the analog voice communication mode.
Fig. 6 is a schematic diagram illustrating an interaction flow between a digital fishery radio station and a simulated fishery radio station according to an embodiment of the present invention. When the calling party is the digital fishery radio station and the called party is the analog fishery radio station, the digital fishery radio station can return to the analog communication mode for communication in a unified way no matter what mode (or digital or analog) the digital fishery radio station expects to communicate with, and finally DSC signaling interaction is carried out.
In some embodiments of the present application, when both the calling station device and the called station device are digital station devices,
the calling radio station equipment adopts a simulated voice communication mode, and a voice communication mode indication field included in DSC call signaling is specifically used for indicating that the calling radio station equipment adopts the simulated voice communication mode;
the called radio station equipment adopts a digital voice communication mode and is specifically used for switching from the digital voice communication mode to an analog voice communication mode according to a voice communication mode indication field included in DSC call signaling; the voice communication mode indication field included in the DSC answer signaling is used to indicate that the called station apparatus adopts the analog voice communication mode.
In some embodiments of the present application, when both the calling station device and the called station device are digital station devices,
calling radio station equipment adopts a digital voice communication mode, and a voice communication mode indication field included in DSC call signaling is specifically used for indicating that the calling radio station equipment adopts the digital voice communication mode;
the called station equipment adopts a digital voice communication mode, and a voice communication mode indication field included in the DSC response signaling is used for indicating that the called station equipment adopts the digital voice communication mode.
In some embodiments of the present application, when both the calling station device and the called station device are digital station devices,
the calling radio station equipment adopts a simulated voice communication mode, and a voice communication mode indication field included in DSC call signaling is specifically used for indicating that the calling radio station equipment adopts the simulated voice communication mode;
the called radio station equipment adopts a digital voice communication mode, and a voice communication mode indication field included in the DSC response signaling is used for indicating that the called radio station equipment adopts the digital voice communication mode;
the calling station equipment is also used for receiving a DSC response signaling sent by the called station equipment; and switching from the analog voice communication mode to the digital voice communication mode according to a voice communication mode indication field included in the DSC response signaling.
Fig. 7 is a schematic diagram illustrating an interaction flow between a digital fishery radio station and a digital fishery radio station according to an embodiment of the present invention. When the calling station device and the called station device are both digital station devices, the above three complex implementation scenarios are involved, which will depend on the call control strategy. One strategy is that if the caller and the called are both digital fishery stations, the communication between the two is relegated to digital communication. However, considering that the analog FM communication method provides higher voice communication quality under the condition of strong signal, it may be preferable to use the analog system for communication, depending on the signal strength of the current user.
As shown in fig. 5 to 7, the embodiments of the present invention provide an interactive manner between an analog fishery radio station and a digital fishery radio station in different scenarios, and under any circumstances, it can be ensured that fishery radio stations of two systems can perform normal voice communication.
As mentioned above, through the proper extension to the DSC specification of the traditional fishery radio station, the compatibility of the digital fishery radio station and the traditional analog fishery radio station is ensured, the obstacles are eliminated for the popularization and the use of the digital fishery radio station, and meanwhile, the foundation is provided for the later-period capability expansion of the digital fishery radio station, so that the technical foundation is laid for the industry upgrading of the fishery radio station.
As can be seen from the foregoing illustration, in the radio station call system with digital-analog compatibility provided in the embodiment of the present invention, the calling radio station device sends a DSC call signaling, the called radio station device sends a DSC response signaling, and at least one of the DSC call signaling and the DSC response signaling includes: a voice communication mode indication field for indicating that an analog voice communication mode or a digital voice communication mode is employed. In the embodiment of the present invention, the voice communication mode indication field in the DSC signaling (including DSC call signaling or DSC answer signaling) may be configured only according to the voice communication mode supported by the station device. The embodiment of the invention is different from the DSC signaling in the prior art, and the smooth upgrade of the radio station equipment from the analog technology to the digital technology can be realized through the voice communication mode indication field additionally added in the DSC signaling.
It should be noted that the above-described embodiments of the apparatus are merely schematic, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. In addition, in the drawings of the embodiment of the apparatus provided by the present invention, the connection relationship between the modules indicates that there is a communication connection between them, and may be specifically implemented as one or more communication buses or signal lines. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that the present invention may be implemented by software plus necessary general hardware, and may also be implemented by special hardware including special integrated circuits, special CPUs, special memories, special components and the like. Generally, functions performed by computer programs can be easily implemented by corresponding hardware, and specific hardware structures for implementing the same functions may be various, such as analog circuits, digital circuits, or dedicated circuits. However, the implementation of a software program is a more preferable embodiment for the present invention. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a readable storage medium, such as a floppy disk, a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk of a computer, and includes instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.
In summary, the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the above embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the above embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A station call system having digital to analog compatibility, the station call system comprising: a calling station device and a called station device, the calling station device establishing a communication connection through a digital selective call DSC channel, wherein,
the calling radio station equipment is used for generating a DSC call signaling according to a voice communication mode supported by the calling radio station equipment and sending the DSC call signaling to the called radio station equipment through the DSC channel;
the called radio station equipment is used for receiving the DSC call signaling sent by the calling radio station equipment through the DSC channel; generating a DSC response signaling according to a voice communication mode supported by the called radio station equipment, and sending the DSC response signaling to the calling radio station equipment through the DSC channel;
wherein the voice communication mode comprises: an analog voice communication mode, and/or a digital voice communication mode;
the DSC call signaling and the DSC response signaling at least have one signaling comprising: a voice communication mode indication field for indicating that the analog voice communication mode or the digital voice communication mode is employed.
2. The digital-analog-compatible station call system according to claim 1, wherein at least one of the DSC call signaling and the DSC answer signaling further comprises: an end-of-frame identification field, wherein,
the voice communication mode indication field is adjacent to the end of frame identification field and is after the end of frame identification field.
3. The digital-to-analog compatible station call system of claim 1, wherein the voice communication mode indication field takes on two values: a first bit sequence and a second bit sequence, wherein,
if the value of the voice communication mode indication field is the first bit sequence, indicating to adopt the analog voice communication mode; or the like, or, alternatively,
if the value of the voice communication mode indication field is the second bit sequence, indicating to adopt the digital voice communication mode;
the first bit sequence consists of two continuous first fields with the same value;
the second bit sequence is composed of two consecutive second fields with the same value.
4. A station call system with digital to analog compatibility according to any of claims 1 to 3,
when the calling radio station equipment is analog radio station equipment, the calling radio station equipment adopts the analog voice communication mode, and the DSC call signaling does not include the voice communication mode indication field;
when the called radio station equipment is digital radio station equipment, the called radio station equipment adopts the digital voice communication mode, and the called radio station equipment is also used for switching from the digital voice communication mode to the analog voice communication mode; the DSC response signaling includes the voice communication mode indication field, where the voice communication mode indication field is specifically used to indicate that the called station device adopts the analog voice communication mode.
5. A station call system with digital to analog compatibility according to any of claims 1 to 3,
when the calling radio station equipment is digital radio station equipment, the calling radio station equipment adopts the analog voice communication mode, the DSC call signaling comprises the voice communication mode indication field, and the voice communication mode indication field is specifically used for indicating that the calling radio station equipment adopts the analog voice communication mode;
when the called radio station equipment is analog radio station equipment, the called radio station equipment adopts the analog voice communication mode, and the DSC response signaling does not include the voice communication mode indication field.
6. A station call system with digital to analog compatibility according to any of claims 1 to 3,
when the calling radio station equipment is digital radio station equipment, the calling radio station equipment adopts the digital voice communication mode, the DSC call signaling comprises the voice communication mode indication field, and the voice communication mode indication field is specifically used for indicating that the calling radio station equipment adopts the digital voice communication mode;
when the called radio station equipment is analog radio station equipment, the called radio station equipment adopts the analog voice communication mode, and the DSC response signaling does not comprise the voice communication mode indication field;
the calling radio station equipment is further configured to receive the DSC response signaling sent by the called radio station equipment; and when the DSC response signaling is determined not to comprise the voice communication mode indication field, switching from the digital voice communication mode to the analog voice communication mode.
7. A station call system with digital to analog compatibility according to any of claims 1 to 3,
when the calling station apparatus and the called station apparatus are both digital station apparatuses,
the calling radio station equipment adopts the analog voice communication mode, and a voice communication mode indication field included in the DSC call signaling is specifically used for indicating that the calling radio station equipment adopts the analog voice communication mode;
the called radio station equipment adopts the digital voice communication mode, and is specifically used for switching from the digital voice communication mode to the analog voice communication mode according to a voice communication mode indication field included in the DSC call signaling; and a voice communication mode indication field included in the DSC response signaling is used for indicating that the called station equipment adopts the analog voice communication mode.
8. A station call system with digital to analog compatibility according to any of claims 1 to 3,
when the calling station apparatus and the called station apparatus are both digital station apparatuses,
the calling radio station equipment adopts the digital voice communication mode, and a voice communication mode indication field included in the DSC call signaling is specifically used for indicating that the calling radio station equipment adopts the digital voice communication mode;
the called radio station equipment adopts the digital voice communication mode, and a voice communication mode indication field included in the DSC response signaling is used for indicating that the called radio station equipment adopts the digital voice communication mode.
9. A station call system with digital to analog compatibility according to any of claims 1 to 3,
when the calling station apparatus and the called station apparatus are both digital station apparatuses,
the calling radio station equipment adopts the analog voice communication mode, and a voice communication mode indication field included in the DSC call signaling is specifically used for indicating that the calling radio station equipment adopts the analog voice communication mode;
the called radio station equipment adopts the digital voice communication mode, and a voice communication mode indication field included in the DSC response signaling is used for indicating that the called radio station equipment adopts the digital voice communication mode;
the calling radio station equipment is further configured to receive the DSC response signaling sent by the called radio station equipment; and switching from the analog voice communication mode to the digital voice communication mode according to a voice communication mode indication field included in the DSC response signaling.
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| CN201910015774.4A CN109495852B (en) | 2019-01-08 | 2019-01-08 | Radio station calling system with digital-analog compatibility |
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| CN109495852B true CN109495852B (en) | 2021-03-19 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101656845A (en) * | 2004-12-20 | 2010-02-24 | 三星电子株式会社 | Digital multimedia receiver and receiving method thereof |
| CN101800565A (en) * | 2009-02-10 | 2010-08-11 | 三星电子株式会社 | The mancarried device and the control method thereof that comprise digital walkie-talkie module |
| CN108541081A (en) * | 2018-04-17 | 2018-09-14 | 福建北峰通信科技股份有限公司 | A kind of small cluster method of construction of intercommunication of analog- and digital- DMR compatibilities |
| CN108566225A (en) * | 2018-06-21 | 2018-09-21 | 南京仁德电子产品研发有限公司 | A kind of radio station digitlization ship VHF |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020025791A1 (en) * | 2000-03-20 | 2002-02-28 | Englert John W. | Handheld two-way radio with digital selective calling |
| TWI281117B (en) * | 2003-11-12 | 2007-05-11 | C One Technology Corp Ltd | Detachable interface I/O card device |
| CN101630897B (en) * | 2009-08-13 | 2012-09-26 | 中兴通讯股份有限公司 | Power supply digital control development platform |
-
2019
- 2019-01-08 CN CN201910015774.4A patent/CN109495852B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101656845A (en) * | 2004-12-20 | 2010-02-24 | 三星电子株式会社 | Digital multimedia receiver and receiving method thereof |
| CN101800565A (en) * | 2009-02-10 | 2010-08-11 | 三星电子株式会社 | The mancarried device and the control method thereof that comprise digital walkie-talkie module |
| CN108541081A (en) * | 2018-04-17 | 2018-09-14 | 福建北峰通信科技股份有限公司 | A kind of small cluster method of construction of intercommunication of analog- and digital- DMR compatibilities |
| CN108566225A (en) * | 2018-06-21 | 2018-09-21 | 南京仁德电子产品研发有限公司 | A kind of radio station digitlization ship VHF |
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