CN108541081B

CN108541081B - Analog and digital DMR compatible talkback small cluster building method

Info

Publication number: CN108541081B
Application number: CN201810343040.4A
Authority: CN
Inventors: 杜晓智
Original assignee: Fujian Beifeng Communication Technology Co ltd
Current assignee: Fujian Beifeng Communication Technology Co ltd
Priority date: 2018-04-17
Filing date: 2018-04-17
Publication date: 2021-09-28
Anticipated expiration: 2038-04-17
Also published as: CN108541081A

Abstract

The invention discloses a building method of a talkback small cluster compatible with analog and digital DMR, which comprises the following steps: A. the addressing assignment definition of various IDs of the system network comprises: addressing by a DMR ID; II, forming a system networking ID; and thirdly, the combination definition of the SYS ID and the DMR ID of the system extension and the allocation of the terminal ID address and the group selective call ID address. The invention reasonably arranges the common talkback information by specially designing the code of the equipment ID, adopting the arrangement combination of a system, a base station, channels, a serial number and a priority, combines the traditional analog talkback system and the new digital talkback system to form a small cluster by reasonable system planning under a reasonable ID arrangement mode, and enables talkback users in the channels to be interconnected and intercommunicated, thereby not only utilizing the former old equipment, but also leading in the new digital talkback more reasonably, and enabling the users and suppliers to be smoothly suitable for the upgrade of the talkback technology.

Description

Analog and digital DMR compatible talkback small cluster building method

Technical Field

The invention relates to the technical field of communication, in particular to a method for building a talkback small cluster compatible with analog and digital DMR.

Background

At present, a large number of analog talkback systems exist, but the current analog systems only have voice and are not digitalized, especially there are no ID data of talkback calls and no identifications of call initiators and target calls, which causes inconvenience in talkback management and multi-channel combined use.

The DMR protocol is a new digital mobile radio communication specification proposed by the European Telecommunications Standards Institute (ETSI) in 2004, and is a new standard in the field of Professional Mobile Radio (PMR), and compared with other professional wireless communication products, the DMR protocol mainly has the following advantages: the higher spectrum utilization rate: the frequency spectrum is a strategic resource, wireless communication is applied to various industries due to the development of society, so that the currently available frequency spectrum resource is increasingly tense, a DMR protocol adopts a physical channel interval of 12.5KHZ on an air interface, and adopts a Time Division Multiple Access (TDMA) mode to divide each physical channel of 12.5KHZ into 2 time slots (logical channels), and compared with a traditional analog intercom system with a 25KHZ channel interval, the frequency spectrum utilization rate is 4 times that of the current analog system; secondly, antenna feeder equipment is reduced: because the DMR system adopts a Time Division Multiple Access (TDMA) access mode on an air interface, a 12.5KHZ physical channel supports 2 logic channels, one relay device only needs 1 duplexer to support the communication of 2 channels, and does not need devices such as a combiner, a splitter and the like when the analog system supports 2-path communication, thereby reducing antenna feeder devices and lowering the cost; and thirdly, the coverage range of the base station is wider: the DMR protocol adopts forward error correction and interleaving coding technology on an air interface, has strong anti-jamming capability, and increases the coverage radius by about 10 percent compared with the traditional base station under the same working condition; fourthly, higher voice quality and noise immunity performance: the DMR protocol adopts forward error correction and interleaving coding technology on an air interface, the system has strong anti-interference capability, can provide more consistent voice quality in a base station coverage range, and has stronger inhibition capability on environmental noise because the system adopts advanced voice compression and coding technology according to the basic characteristics of human language, and can listen to clear voice even in a very noisy environment; the standby time of the terminal is longer: due to the adoption of the time division multiple access technology, the DMR terminal only works on one time slot during transmission, and compared with the traditional wireless terminal, the service life of the battery is prolonged by 40 percent under the same working condition; sixthly, meeting the development direction problem of the communication system: the DMR protocol is a digital communication protocol, digital communication has strong anti-interference capability due to supporting signal regeneration and shaping functions and no noise accumulation in transmission, and can perform long-distance signal transmission with high quality, and the digital system also has advantages of adapting to various communication service requirements (such as telephone, telegraph, image, data, etc.), facilitating realization of a unified integrated service digital network, facilitating adoption of a large-scale integrated circuit, facilitating realization of encryption processing, facilitating realization of computer management of a communication network, and the like.

Disclosure of Invention

The invention aims to provide a method for building a talkback small cluster compatible with analog and digital DMR, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a building method of a talkback small cluster compatible with analog and digital DMR comprises the following steps:

A. the addressing assignment definition of various IDs of the system network comprises: addressing by a DMR ID; II, forming a system networking ID; thirdly, the combination definition of system extension SYS ID and DMR ID and the allocation of terminal ID address and group selective call ID address;

B. b, the interphone in the analog system carries out equipment ID coding according to the addressing distribution definition in the step A, and meanwhile, the interphone in the digital system carries out ID coding according to the rule;

C. when an interphone in the analog system starts to talk, the interphone firstly transmits the ID of the interphone and the default ID of a current channel through FSK;

D. after receiving the information, other analog interphones under the same base station determine whether to open the voice according to the ID of the talk group;

E. after receiving the talkback information of the interphone, the controller connected to the relay station encodes the voice information into digital voice of a digital system in real time and transmits the digital voice to other controllers;

F. other controllers determine whether to send down voice according to the transmitted voice information, mainly the speech ID and the target ID in the voice information;

G. the DMR is a TDMA double time slot and supports time-sharing transmission and reception, so that signals of other interphones can be received during transmission, and the analog interphone needs to monitor two channels simultaneously, one channel is used for transmission, and the other channel is used for monitoring information of other interphones;

H. when the analog interphone receives other talkback conversation information, the priority of the analog interphone is compared with the priority of the current conversation, and if the priority of the analog interphone is lower than the priority of the current conversation, the analog interphone is in a listening state and cannot start transmission; when the priority of the user is higher than the priority of the current call, the user can jump to another channel to send the information about the user to start the call;

I. when the interphone with the current conversation receives the conversation requirement of the interphone with the high priority, the interphone sends the information of stopping speaking in the current voice channel, plays a short interruption prompt tone at the same time, then finishes the transmission, and can start the talkback conversation of the interphone with the high priority when the interphone with the current conversation receives the information of stopping speaking;

J. the conversation situation of the digital DMR interphone is as follows: when the talkback calls of a plurality of channels which are simultaneously interconnected are simultaneously initiated, the token is arbitrated to be sent to the bottom by the controller according to the priority of the talkback calls, the initiator ID, the target call ID and the controller, and the controller is used for forwarding the talkback calls.

Preferably, the addressing of the DMR ID is divided into selective call and group call and shares the same ID addressing, and one (G group call/I selective call) bit indicates whether the target address is selective call or group call, a GI Flag bit is also added in the original system protocol for matching to distinguish selective call or group call, and the addressing range of the DMR ID is specified as follows: the (000001-FFFCDF) address field is used by various controllers in the system in conjunction with the wireless terminal (intercom, car station, repeater) MS.

Preferably, the system networking ID is composed of a system extension SYS ID (1 byte) + a DMR ID (3 bytes) of an original wireless terminal, and as known by a DMR Air Interface (AI) Air Interface protocol, the sum of lengths of a source ID and a destination ID transmitted by the wireless terminal is 24 BIT.3 HEX bytes, and the DMR ID group addressing range of the selective call/group call is as follows: 000001-FFFCDF, indicating whether the target address is selective calling or group calling by a (G group calling/I selective calling) bit, so the address ID in the system communication protocol command also needs to add a (G group calling/I selective calling) bit, meanwhile, an ID extension is added, so that a byte is added to serve as a system extension SYS ID and a DMR ID to serve as an instruction ID addressing of a system communication protocol together, (SYS ID.6-SYS ID.0) and the DMR ID to serve as an instruction ID addressing of a system networking communication protocol together, the system extension SYS ID and the original DMR ID are written into an interphone, a vehicle platform and a relay platform together through frequency writing software during system networking, by defining the system networking ID, the scheduling information such as the system ID, the base station ID, the channel controller ID, the wireless terminal ID, various calling IDs and the like can be distinguished every call and data transmission, and the base station does not need to always send a certain scheduling instruction to control the call intervention of the wireless terminal which is just accessed to the network.

Preferably, the system networking ID addressing range is system extension SYS ID (1 byte) + DMR ID (3 bytes) is 00000001-fffcdf (32BIT), and the system assigns a new meaning to the addressing section and performs addressing discrimination in the system networking, using: firstly, defining an analytic format: SYS ID + DMR ID GPPPPPPP SSSSS BBBBB CCCCC M MMMMMMMM bit.31-bit.0; and II, a minimum system networking ID address: SYS ID + DMR ID ═ G0000000000000000000000000000001 (00000001); and thirdly, the ID address of the maximum system networking: SYS ID + DMR ID is G1111111111111111111100111011111 (7FFFF9DF), and G denotes an address attribute, and G is a group call class address of 1; and G-0 is the selective call address.

Preferably, the gppppp: 7BIT denotes dealer ID, scope: 0-7F, 128 dealers in total; SSSS: 5BIT denotes System ID, Range: 0-1F, each dealer may group 32 systems; BBBBB: 5BIT denotes a base station ID, range: 00-1F, each system can build 32 base stations; CCCC: 5BIT denotes a channel ID, range: 00-1C, each base station can be divided into 29 channels, the 00 channel can be used as a cluster instruction channel in the future, the 0-25 channel is a general working channel, and the 26-28 channels are used for scheduling a special channel; MMMMMMMMM: BIT 9 denotes a wireless terminal ID, range: 000-1DF, each channel can carry 479 wireless terminals, and the maximum address 1DE is allocated to the base station channel local station and the channel local controller, 1DF is allocated to the base station channel local relay station and the base station channel controller, the maximum address 1DFD is allocated to the channel link station, the maximum address 1DC is allocated to the channel link relay station, the remaining addressing range: the 001-1DB (474 stations) is allocated to the interphones, the mobile vehicle stations and the fixed vehicle stations which are governed by the channel.

Preferably, the channel local station (fixed station) and the ID address of the connected channel controller: m MMMMMMMM-111011111-1 DF; II, channel local relay station and ID address of the channel controller: m MMMMMMMM-111011110-1 DE; and thirdly, channel link stations (fixed stations) and ID addresses of the connected channel controllers: m MMMMMMMM-111011101-1 DD; fourthly, the channel link relay station and the ID address of the connected channel controller: m MMMMMMMM-111011100-1 DC; fifth, wireless terminal ID address governed by the channel: 000000001-; sixthly, maximum CCCCCCC is 00000-; seventhly, the maximum BBBBB is 00000-; the maximum SSSSSSS (00000) -11111 (1F) -32 systems (each distributor can set up 32 systems at most); ninthly, maximum gppppp-G1111111-7F-128 distributors (maximum distributors per country); r, each system manages 26 (operating channel) 12324 stations of maximum coding capacity, and each dealer manages 394368 stations of maximum coding capacity, 32 (operating channel) 12324.

Compared with the prior art, the invention has the following beneficial effects:

the invention reasonably arranges the common talkback information by specially designing the code of the equipment ID, adopting the arrangement combination of a system, a base station, channels, a serial number and a priority, combines the traditional analog talkback system and the new digital talkback system to form a small cluster by reasonable system planning under a reasonable ID arrangement mode, and enables talkback users in the channels to be interconnected and intercommunicated, thereby not only utilizing the former old equipment, but also leading in the new digital talkback more reasonably, and enabling the users and suppliers to be smoothly suitable for the upgrade of the talkback technology.

Drawings

FIG. 1 is a schematic diagram of the system of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, a method for constructing a talkback small cluster compatible with analog and digital DMR includes the following steps:

The addressing of the DMR ID is divided into selective calling and group calling and shares the same ID addressing, whether a target address is selective calling or group calling is indicated through a (G group calling/I selective calling) bit, a GI Flag bit is also added in an original system protocol for matching to distinguish selective calling or group calling, the addressing is unified with the original DMR addressing and does not influence the normal addressing of the DMR, and the addressing range of the system networking ID is specially specified as follows: the (000001-FFFCDF) address field is used by various controllers in the system in conjunction with the wireless terminal (intercom, car station, repeater) MS.

The system networking ID consists of a system extension SYS ID (1 byte) and a DMR ID (3 bytes) of an original wireless terminal, and the sum of the lengths of a source ID and a destination ID transmitted by the wireless terminal is 24BIT as known by a DMR Air Interface (AI) Air Interface protocol. 3 HEX bytes, and the DMR ID group addressing range of the selective call/group call is as follows: 000001-FFFCDF, indicating whether the target address is selective calling or group calling by a (G group calling/I selective calling) bit, so the address ID in the system communication protocol command also needs to add a (G group calling/I selective calling) bit, meanwhile, an ID extension is added, so that a byte is added to serve as a system extension SYS ID and a DMR ID to serve as an instruction ID addressing of a system communication protocol together, (SYS ID.6-SYS ID.0) and the DMR ID to serve as an instruction ID addressing of a system networking communication protocol together, the system extension SYS ID and the original DMR ID are written into an interphone, a vehicle platform and a relay platform together through frequency writing software during system networking, by defining the system networking ID, the scheduling information such as the system ID, the base station ID, the channel controller ID, the wireless terminal ID, various calling IDs and the like can be distinguished every call and data transmission, and the base station does not need to always send a certain scheduling instruction to control the call intervention of the wireless terminal which is just accessed to the network.

The system networking ID addressing range is system extension SYS ID (1 byte) + DMR ID (3 bytes) is 00000001-fffcdf (32BIT), and the system assigns a new meaning to the addressing section and performs addressing discrimination in the system networking: firstly, defining an analytic format: SYS ID + DMR ID GPPPPPPP SSSSS BBBBB CCCCC M MMMMMMMM bit.31-bit.0; and II, a minimum system networking ID address: SYS ID + DMR ID ═ G0000000000000000000000000000001 (00000001); and thirdly, the ID address of the maximum system networking: SYS ID + DMR ID is G1111111111111111111100111011111 (7FFFF9DF), and G denotes an address attribute, and G is a group call class address of 1; and G-0 is the selective call address.

GPPPPPPP: 7BIT denotes dealer ID, scope: 0-7F, 128 dealers in total; SSSS: 5BIT denotes System ID, Range: 0-1F, each dealer may group 32 systems; BBBBB: 5BIT denotes a base station ID, range: 00-1F, each system can build 32 base stations; CCCC: 5BIT denotes a channel ID, range: 00-1C, each base station can be divided into 29 channels, the 00 channel can be used as a cluster instruction channel in the future, the 0-25 channel is a general working channel, and the 26-28 channels are used for scheduling a special channel; MMMMMMMMM: BIT 9 denotes a wireless terminal ID, range: 000-1DF, each channel can carry 479 wireless terminals, and the maximum address 1DE is allocated to the base station channel local station and the channel local controller, 1DF is allocated to the base station channel local relay station and the base station channel controller, the maximum address 1DFD is allocated to the channel link station, the maximum address 1DC is allocated to the channel link relay station, the remaining addressing range: the 001-1DB (474 stations) is allocated to the interphones, the mobile vehicle stations and the fixed vehicle stations which are governed by the channel.

Channel local station (fixed station) and the ID address of the channel controller connected thereto: m MMMMMMMM-111011111-1 DF; II, channel local relay station and ID address of the channel controller: m MMMMMMMM-111011110-1 DE; and thirdly, channel link stations (fixed stations) and ID addresses of the connected channel controllers: m MMMMMMMM-111011101-1 DD; fourthly, the channel link relay station and the ID address of the connected channel controller: m MMMMMMMM-111011100-1 DC; fifth, wireless terminal ID address governed by the channel: 000000001-; sixthly, maximum CCCCCCC is 00000-; seventhly, the maximum BBBBB is 00000-; the maximum SSSSSSS (00000) -11111 (1F) -32 systems (each distributor can set up 32 systems at most); ninthly, maximum gppppp-G1111111-7F-128 distributors (maximum distributors per country); r, each system manages 26 (operating channel) 12324 stations of maximum coding capacity, and each dealer manages 394368 stations of maximum coding capacity, 32 (operating channel) 12324.

When the system is used, the common talkback information is reasonably arranged by specially designing the code of the equipment ID, adopting the arrangement combination of the system, the base station, the channels, the serial number and the priority, and under a reasonable ID arrangement mode, the traditional analog talkback system and the new digital talkback system are combined to form a small cluster by reasonable system planning, and talkback users in the channels can be interconnected and intercommunicated, so that not only can the former old equipment be utilized, but also the new digital talkback can be more reasonably introduced, and the users and suppliers can smoothly adapt to the upgrade of the talkback technology.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A building method of a talkback small cluster compatible with analog and digital DMR is characterized by comprising the following steps: the construction method comprises the following steps:

F. the other controllers determine whether to send the voice according to the transmitted voice information, the speech ID in the controller and the target ID;

2. The method of claim 1 for building an analog and digital DMR compatible intercom micro-cluster, comprising the steps of: the addressing of the DMR ID is divided into selective calling and group calling and shares the same ID addressing, a G group calling/I selective calling bit is used for indicating whether a target address is selective calling or group calling, a GI Flag bit is also added in an original system protocol for matching to distinguish selective calling or group calling, the addressing is unified with the original DMR addressing and does not influence the normal addressing of the DMR, and the addressing range of the system networking ID is specially specified as follows: the (000001-FFFCDF) address field, which is used by the various controllers in the system in conjunction with the wireless terminal MS.

3. The method of claim 1 for building an analog and digital DMR compatible intercom micro-cluster, comprising the steps of: the system networking ID is composed of a system extension SYS ID and a DMR ID of an original wireless terminal, and can be known by a DMR Air Interface (AI) Air Interface protocol, the sum of the lengths of a source ID and a destination ID transmitted by the wireless terminal is 24BIT and 3 HEX bytes, and the addressing range of the DMR ID group of selective calling/group calling is as follows: 000001-FFFCDF, indicates the target address is selective calling or group calling through a G group calling/I selective calling bit, so the address ID in the system communication protocol command also needs to add a G group calling/I selective calling bit, meanwhile, an ID extension is added, so that a byte is added to serve as a system extension SYS ID and a DMR ID to serve as an instruction ID addressing of a system communication protocol together, (SYS ID.6-SYS ID.0) and the DMR ID to serve as an instruction ID addressing of a system networking communication protocol together, the system extension SYS ID and the original DMR ID are written into an interphone, a vehicle platform and a relay platform together through frequency writing software during system networking, by defining the system networking ID, the scheduling information such as the system ID, the base station ID, the channel controller ID, the wireless terminal ID, various calling IDs and the like can be distinguished every call and data transmission, and the base station does not need to always send a certain scheduling instruction to control the call intervention of the wireless terminal which is just accessed to the network.

4. The method of claim 1 for building an analog and digital DMR compatible intercom micro-cluster, comprising the steps of: the system networking ID addressing range is system extension SYS ID + DMR ID is 00000001-FFFCDF, the system assigns a new meaning to the addressing section and carries out addressing judgment in the system networking for use: firstly, defining an analytic format: SYS ID + DMR ID GPPPPPPP SSSSS BBBBB CCCCC M MMMMMMMM bit.31-bit.0; and II, a minimum system networking ID address: SYS ID + DMR ID ═ G0000000000000000000000000000001 (00000001); and thirdly, the ID address of the maximum system networking: SYS ID + DMR ID is G1111111111111111111111100111011111, G represents an address attribute, and G is 1, which is a group call class address; and G-0 is the selective call address.

5. The method of claim 4 for building an analog and digital DMR compatible intercom micro-cluster, wherein: the GPPPPPPP: 7BIT denotes dealer ID, scope: 0-7F, 128 dealers in total; SSSS: 5BIT denotes System ID, Range: 0-1F, each dealer may group 32 systems; BBBBB: 5BIT denotes a base station ID, range: 00-1F, each system can build 32 base stations; CCCC: 5BIT denotes a channel ID, range: 00-1C, each base station can be divided into 29 channels, the 00 channel can be used as a cluster instruction channel in the future, the 0-25 channel is a general working channel, and the 26-28 channels are used for scheduling a special channel; MMMMMMMMM: BIT 9 denotes a wireless terminal ID, range: 000-1DF, each channel can carry 479 wireless terminals, and the maximum address 1DE is allocated to the base station channel local station and the channel local controller, 1DF is allocated to the base station channel local relay station and the base station channel controller, the maximum address 1DFD is allocated to the channel link station, the maximum address 1DC is allocated to the channel link relay station, the remaining addressing range: the 001-1DB is distributed to the interphones, the mobile vehicle stations and the fixed vehicle stations governed by the channel.

6. The method of claim 5 for building an analog and digital DMR compatible intercom micro-cluster, wherein: the ID addresses of the channel local vehicle platform and the connected channel local controller are as follows: m MMMMMMMM-111011111-1 DF; II, channel local relay station and ID address of channel controller of connected base station: m MMMMMMMM-111011110-1 DE; and thirdly, ID addresses of the channel link station and the channel controller connected with the channel link station: m MMMMMMMM-111011101-1 DD; fourthly, the channel link relay station and the ID address of the connected channel controller: m MMMMMMMM-111011100-1 DC; fifth, wireless terminal ID address governed by the channel: 000000001-; sixthly, maximum CCCCCCC is 00000-; seventhly, the maximum BBBBB is 00000-; eighty (eight) systems, the maximum SSSSSSS (00000) -11111 (1F) -32 systems; ninthly, the maximum GPPPPP is G0000000-G1111111 is 7F 128 distributors; the r, each system manages 12324 stations with 26 x 474 x and each dealer manages 394368 stations with 32 x 12324 x.