CN112188425B - Communication method for civil aircraft passenger cabin internal call - Google Patents
Communication method for civil aircraft passenger cabin internal call Download PDFInfo
- Publication number
- CN112188425B CN112188425B CN202011051106.6A CN202011051106A CN112188425B CN 112188425 B CN112188425 B CN 112188425B CN 202011051106 A CN202011051106 A CN 202011051106A CN 112188425 B CN112188425 B CN 112188425B
- Authority
- CN
- China
- Prior art keywords
- communication
- station
- driver
- crew
- attendant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/33—Services specially adapted for particular environments, situations or purposes for indoor environments, e.g. buildings
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/42—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for mass transport vehicles, e.g. buses, trains or aircraft
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/50—Connection management for emergency connections
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Aviation & Aerospace Engineering (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
- Telephonic Communication Services (AREA)
Abstract
The invention discloses a communication method of a civil aircraft passenger cabin internal call, which comprises the following steps: dividing communication scenes between a driver station and a crew station, wherein each scene corresponds to a communication logic; establishing a communication priority order; when the driver station and the crew station communicate, firstly, the communication scene type is judged, the corresponding communication logic is obtained based on the scene type, and the driver station and the crew station communicate based on the corresponding communication logic and the communication priority order. The invention separates the calling signal and the channel selection signal, and can independently control the calling indication state of the called party; corresponding to different processing priorities according to the emergency degree of the communication service; designing point-to-point communication and conference mode communication according to the range of a communication object; a plurality of communication links which work simultaneously can be established between the driver station and the attendant station; each driver station positioned in the cockpit works independently; each crew station located in the passenger cabin operates independently.
Description
Technical Field
The invention relates to the field of communication, in particular to a communication method for a civil aircraft passenger cabin internal call.
Background
The civil aircraft pilot and crew member internal communication is an important function of an aircraft communication system, is a component part for ensuring safe flight of an aircraft, and mainly comprises an internal communication management unit, a pilot station communication component, a call unit in a cockpit, a crew station communication component and the like.
In the prior art, the scene division of the internal communication between the existing aircraft pilot station and the crew station is not clear enough, the communication logic is single, the communication adaptability is not strong, the problem of communication busy state prompt is lacked, and the requirement of the modern civil aircraft on the communication of the internal communication of the passenger cabin cannot be met.
Disclosure of Invention
The invention provides a communication method for a civil aircraft cabin internal call, which aims to solve the technical problems in the prior art.
In order to achieve the above object, the present invention provides a method for communicating a cabin intercom of a civil aircraft, which is applied to intercom communication between a driver station and a crew station, and comprises:
dividing communication scenes between a driver station and a crew station, wherein each scene corresponds to a communication logic;
establishing a communication priority order between a driver station and a crew station;
when the driver station and the crew station communicate, firstly, the communication scene type is judged, the corresponding communication logic is obtained based on the scene type, and the driver station and the crew station communicate based on the corresponding communication logic and the communication priority order.
Preferably, the communication scene division type between the driver station and the crew station comprises:
(1) dividing the communication into normal communication and emergency communication according to the communication emergency degree between the driver station and the attendant station;
(2) dividing the communication into point-to-point communication and conference mode communication according to the range of communication objects between the driver station and the attendant station;
(3) according to different calling sources, calling a crew station by a driver station and calling a driver station by the crew station;
(4) providing a communication arbitration mechanism according to the call source and the urgency of communication, wherein the communication with high priority inhibits or terminates the communication with low priority; the same priority communication, the late call is suppressed and a first come first serve communication mechanism is provided.
Preferably, the order of priority of communication between the driver station and the attendant station is:
the priority of the emergency communication is higher than that of the normal communication; the priority of normal communication between the driver station and the crew station is greater than the priority of communication between the crew stations.
Preferably, when the driver station calls the crew station in the scene of the driver station, the communication logic between the driver station and the crew station is as follows:
the driver station sends calling attendant information to the internal speech management unit, if the called attendant station is idle, visual indication and harmonic prompt are generated at the called attendant station, after the called attendant station responds to the call, internal speech communication is established between the driver station and the called attendant station, at the moment, the calling state is ended, and the attendant station calls the visual indication to cancel;
if the called attendant station is in the internal communication state with the same priority, the internal management unit sends a busy prompt tone to the calling driver station;
if the called attendant station is in the low-priority internal communication state, the internal communication management unit terminates the current low-priority communication, and high-priority communication is established between the calling driver station and the attendant station;
the driver's station terminates communication with any of the attendant stations and the communication is over.
Preferably, when the driver station is called by the crew station, the communication logic between the driver station and the crew station is as follows:
the attendant station transmits an incoming call request message to the incoming call management unit to call the driver. If the driver station is not in the communication state with the crew station, the internal speech management unit sends the calling information to the calling unit, the calling unit generates a calling visual indication, and simultaneously the driver station generates a harmonic sound prompt, any idle driver station responds to the call of the crew station, the crew station and the driver station establish internal speech communication, at the moment, the calling state is ended, and the calling visual indication in the cockpit is cancelled;
if all the driver stations and other crew stations are in the internal communication state, the internal communication management unit sends a busy prompt tone to the crew stations;
if the priority of the call of the attendant station is higher than the internal communication between the current other attendant stations and the driver station, the internal communication management unit terminates the internal communication, and high-priority communication is established between the attendant station and the driver station of the high-priority call;
the driver station terminates communication with any of the attendant stations and communication is terminated.
Preferably, when in the communication scenario of the conference mode, the communication logic between the driver station and the crew station is:
when one driver station calls a plurality of attendant stations and the called attendant stations respond, the driver station and the plurality of attendant stations establish conference mode communication, the internal call management unit performs audio mixing processing on audio data of the plurality of attendant stations and the driver station and sends the audio data to the driver station and the plurality of attendant stations, and when the driver station terminates communication or all the attendant stations participating in the conference internal call exit the current communication, the communication is ended.
Preferably, the driver station is directly connected to the internal speech management unit, the crew station is connected to the internal speech management unit through a digital bus network, all the driver stations share one calling unit, the calling unit located in the cockpit is directly connected to the internal speech management unit, and the internal speech management unit is a processing center of internal speech control logic and internal speech audio data.
One or more technical schemes provided by the invention at least have the following technical effects or advantages:
the invention designs normal communication and emergency communication according to the emergency degree of the communication service and corresponds to different processing priorities. The point-to-point communication and the conference mode communication are designed according to the range of the communication objects. The driver station and the attendant station can establish multi-channel simultaneously working internal communication. One driver station fails to work, and the communication between other driver stations and the crew station is not influenced; one crew station is disabled and does not interfere with the driver station's communication with other crew stations.
The crew station communicates with the pilot station through a digital bus network, and the number of stations can be configured according to the specific airplane model requirements.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention;
FIG. 1 is a schematic diagram of the intercom communication system between a driver station and a crew station of the present invention;
FIG. 2 is a schematic view of the present invention showing a driver's station calling a crew station;
FIG. 3 is a schematic diagram of the present invention showing the establishment of communication between a driver's station and a crew station;
FIG. 4 is a voice illustration of the driver's station and the attendant's station communication of the present invention;
FIG. 5 is a schematic diagram of a crew station calling a driver station in accordance with the present invention;
FIG. 6 is a schematic diagram of the present invention illustrating the establishment of a crew station in communication with a driver station;
FIG. 7 is a schematic illustration of a driver station calling multiple attendant stations in accordance with the present invention;
FIG. 8 is a schematic view of a driver station in communication with a plurality of crew stations in a conference in accordance with the present invention;
fig. 9 is a voice illustration of a driver station in a conference with multiple attendant stations according to the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention, taken in conjunction with the accompanying drawings and detailed description, is set forth below. It should be noted that the embodiments of the present invention and features of the embodiments may be combined with each other without conflicting with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described and thus the scope of the present invention is not limited by the specific embodiments disclosed below.
The embodiment provides a method for communication between a pilot station positioned in an aircraft cockpit and a crew station positioned in a passenger cabin, which meets the requirement of mutual internal communication between a civil aircraft pilot and a crew. The method can be applied to the communication system design of the telephone in the passenger cabin of the airplane through testing and verification.
As shown in fig. 1, a cabin intercom communication system mainly comprises a driver station communication component, a calling unit located in a driver cabin, an intercom management unit and a crew station communication component; for improving reliability, civil aircraft usually provides 3 independent driver station communication components in the cockpit to realize the communication function between a plurality of driver stations and passenger cabin station, the driver station communication components are directly connected to the internal communication management unit, the passenger station communication components are connected to the internal communication management unit through a digital bus network, all the driver stations share one calling unit, and the calling unit is directly connected to the internal communication management unit.
The pilot station in the present invention refers to a communication point within the cockpit of the aircraft and the crew station refers to a communication point within the passenger cabin of the aircraft.
The embodiment provides a method for realizing interactive communication between a driver station and a crew station by using a telephone management unit as a processing center of telephone control logic and telephone audio data. The method provides the functions of simultaneously establishing a plurality of communication links between the driver station and the attendant station, supporting visual and harmonic prompting of calling, preempting the communication priority and the like.
1) The communication between the civil aircraft pilot station and the crew station is divided into a call phase, a communication phase and a communication end according to phases. The method divides the communication between the driver station and the crew station into several different communication scenes:
a) according to the communication emergency degree, normal communication and emergency communication are divided;
b) dividing the communication into point-to-point communication and conference mode communication according to the range of the communication object;
c) according to different calling sources, calling a crew station by a driver station and calling a driver station by the crew station;
d) providing a communication arbitration mechanism according to the call source and the urgency of the communication, wherein the communication with high priority inhibits or terminates the communication with low priority; the same priority communication, the call-after is suppressed, providing a first-come-first-served communication mechanism.
2) The priority (as shown in table 1) to meet the communication service is designed according to the communication service requirement between the driver station and the crew station, 1 being the highest priority and 3 being the lowest priority.
TABLE 1 communication priority
| Call type | Priority level |
| Emergency communication between a driver station and a crew station | 1 |
| Normal communication between driver station and attendant station | 2 |
| Communication between crew stations | 3 |
3) According to the aforementioned scenario of calling the crew seat by the driver seat, the interactive communication logic between the driver seat and the crew member is designed to ensure reliable communication between the driver and the crew member, as shown in fig. 2-4:
a) the calling unit positioned in the cockpit sends an effective calling signal to the internal call management unit, the driver station sends an effective channel selection signal, if the station of the called attendant is in an idle state, the internal call management unit sends an internal call request to the station of the called attendant, and the station generates a visual indication and a primary harmonic sound prompt;
b) the called attendant station responds to the call, the internal call management unit sends an effective channel selection signal to the driver station, the driver station and the attendant station enter a communication state, at the moment, the call signal becomes invalid, and the call visual indication of the attendant station is cancelled;
c) if the called attendant station is in the internal communication state with the same priority, the internal management unit sends a busy prompt tone to the calling driver station;
d) if the called attendant station is in the low-priority internal communication state, the internal communication management unit terminates the current low-priority communication, and high-priority communication is established between the calling driver station and the attendant station;
e) the driver station or the attendant station terminates the communication, namely, the channel selection signal of any party becomes invalid, the communication is ended, and the internal call request signal and the response signal between the internal call management unit and the attendant station are cancelled.
4) According to the foregoing scenario of calling the driver's station by the crew station, the interactive communication logic between the driver's station and the crew station is designed to ensure reliable communication between the crew and the driver, as shown in fig. 5-6:
a) the driver station sends an internal call request to an internal call management unit, the driver station is not in a communication state with the driver station, the internal call management unit sends a call signal to a calling unit positioned in a cockpit and sends a channel selection signal to the driver station, the calling unit generates a call visual indication, and the driver station generates a harmonic prompt; any driver station responds to the call of the crew station, the internal speech management unit receives the channel selection signal of the driver station and then sends an internal speech response signal to the crew station in the internal speech request, and internal speech communication is established between the crew station and the driver station;
b) if all the driver stations and other crew stations are in the internal communication state, the internal management unit sends a busy prompt tone to the crew stations, and the internal management unit does not send a calling signal to a calling unit in the cockpit;
c) if the priority of the call of the attendant station is higher than the internal communication between the current other attendant stations and the driver station, the internal communication management unit terminates the internal communication, and high-priority communication is established between the attendant station and the driver station of the high-priority call;
d) the driver station or the attendant station terminates the communication, namely, the channel selection signal of any party becomes invalid, the communication is ended, and the internal call request signal and the response signal between the internal call management unit and the attendant station are cancelled.
5) According to the above scenario of calling multiple crew stops by the driver stop, the interactive communication logic between the driver stop and the multiple crew stops is designed, as shown in fig. 7-9:
a) the calling unit positioned in the cockpit sends a signal for calling a crew member group to the internal speech management unit, meanwhile, the driver station sends a channel selection signal to the internal speech management unit, and the internal speech management unit sends an internal speech request to the crew station in the group; generating a call indication and a harmonic alert at each called attendant station;
b) the crew station sends a talk-in response signal to the talk-in management unit, the talk-in management unit sends an effective channel selection signal to the driver station, and the driver station and a plurality of crew stations establish conference talk-in communication;
c) the internal speech management unit performs sound mixing processing on voice data of the driver station and the crew station in the group and then sends the voice data to the driver station and the crew stations;
d) when the communication of the driver station is terminated or all the crew stations participating in the conference session exit the current communication, namely the channel selection signal sent by the driver station becomes invalid or the response of the session transmitted by the crew stations in the group is cancelled, the channel selection signal sent to the driver station by the session management unit becomes invalid, and the communication is finished.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all changes and modifications that fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (5)
1. A method for communication of a civil aircraft cabin intercom, characterized in that it is applied to intercom between a pilot station and a crew station, and it comprises:
dividing the communication scenes of the internal calls between the driver station and the crew station, wherein each scene corresponds to a communication logic;
establishing a communication priority order between a driver station and a crew station;
when the driver station and the crew station communicate, firstly judging the type of a communication scene, acquiring corresponding communication logic based on the scene type, and communicating the driver station and the crew station based on the corresponding communication logic and the communication priority order; the communication scene division type between the driver station and the attendant station comprises the following steps:
(1) dividing the communication into normal communication and emergency communication according to the communication emergency degree between the driver station and the attendant station;
(2) dividing the communication into point-to-point communication and conference mode communication according to the range of communication objects between the driver station and the crew station;
(3) according to different calling sources, calling a crew station by a driver station and calling a driver station by the crew station;
(4) providing a communication arbitration mechanism according to the call source and the urgency of communication, wherein the communication with high priority inhibits or terminates the communication with low priority; the communication with the same priority level, the later call is suppressed, and a first-come first-serve communication mechanism is provided; the communication priority order between the driver station and the crew station is as follows:
the priority of the emergency communication is higher than that of the normal communication; the priority of normal communication between the driver station and the crew station is greater than the priority of communication between the crew stations.
2. The communication method for civil aircraft cabin intercom according to claim 1, wherein, in the scenario of a driver station call to a crew station, the communication logic between the driver station and the crew station is:
the driver station sends calling attendant information to the internal speech management unit, if the called attendant station is idle, visual indication and harmonic prompt are generated at the called attendant station, after the called attendant station responds to the call, internal speech communication is established between the driver station and the called attendant station, at the moment, the calling state is ended, and the visual indication of the attendant station calling is cancelled;
if the called attendant station is in the internal communication state with the same priority, the internal management unit sends a busy prompt tone to the calling driver station;
if the called attendant station is in the low-priority internal communication state, the internal communication management unit terminates the current low-priority communication, and high-priority communication is established between the calling driver station and the attendant station;
the driver station terminates communication with any of the attendant stations and communication is terminated.
3. The communication method for civil aircraft cockpit talkback according to claim 1, wherein the communication logic between the pilot station and the crew station when in the scenario of a crew station call to the pilot station is:
the crew station sends the internal call request information for calling the driver to the internal call management unit, if the driver station is not in the communication state with the crew station, the internal call management unit sends the call information to the calling unit, the calling unit generates a visual call indication, the driver station generates a harmonic sound prompt, any idle driver station responds to the crew call, the internal call communication is established between the crew station and the driver station, at the moment, the calling state is ended, and the visual call indication of the calling unit is cancelled;
if all the driver stations and other crew stations are in the intercom communication state, the intercom management unit sends busy prompt tone to the crew stations;
if the priority of the crew station calling is higher than the internal communication between the current other crew stations and the driver station, the internal communication management unit terminates the internal communication, and high-priority communication is established between the crew station and the driver station of the high-priority calling;
the driver station terminates communication with any of the attendant stations and communication is terminated.
4. Communication method for a civil aircraft cabin intercom according to claim 1, characterized in that, in the communication scenario of conference mode, the communication logic between the pilot station and the crew station is:
when one driver station calls a plurality of attendant stations and is responded by the called attendant stations, the driver station establishes conference mode communication with the plurality of attendant stations, the internal call management unit performs audio mixing processing on audio data of the plurality of attendant stations and the driver station and sends the audio data to the driver station and the plurality of attendant stations, and when the driver station terminates communication or all the attendant stations participating in the conference internal call exit the current communication, the communication is ended.
5. The communication method for civil aircraft cabin talkback according to claim 1, characterized in that the pilot stations are directly connected to the talkback management unit, the crew stations are connected to the talkback management unit through a digital bus network, all the pilot stations share a call unit, the call unit is directly connected to the talkback management unit, and the talkback management unit is a processing center for the talkback control logic and the talkback audio data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011051106.6A CN112188425B (en) | 2020-09-29 | 2020-09-29 | Communication method for civil aircraft passenger cabin internal call |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011051106.6A CN112188425B (en) | 2020-09-29 | 2020-09-29 | Communication method for civil aircraft passenger cabin internal call |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112188425A CN112188425A (en) | 2021-01-05 |
| CN112188425B true CN112188425B (en) | 2022-08-30 |
Family
ID=73945945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011051106.6A Active CN112188425B (en) | 2020-09-29 | 2020-09-29 | Communication method for civil aircraft passenger cabin internal call |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112188425B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114204978B (en) * | 2021-12-17 | 2023-03-24 | 中国商用飞机有限责任公司 | Airborne communication system and method for airplane |
| CN115602021B (en) * | 2022-10-26 | 2023-10-31 | 东航技术应用研发中心有限公司 | Modularized simulator in-machine conversation system learning device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105722046A (en) * | 2016-04-08 | 2016-06-29 | 重庆邮电大学 | Implementation method for TD-LTE emergency communication system forced interposing/forced releasing service |
| CN107018487A (en) * | 2008-07-30 | 2017-08-04 | Gogo有限责任公司 | The system of the emergency service call sent for being managed in airborne wireless cellular network from aircraft |
| CN109484651A (en) * | 2018-11-16 | 2019-03-19 | 中电科航空电子有限公司 | A kind of civilian jumbo jet main cabin core system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10607493B2 (en) * | 2017-08-22 | 2020-03-31 | The Boeing Company | Aircraft arrival determination systems and methods |
-
2020
- 2020-09-29 CN CN202011051106.6A patent/CN112188425B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107018487A (en) * | 2008-07-30 | 2017-08-04 | Gogo有限责任公司 | The system of the emergency service call sent for being managed in airborne wireless cellular network from aircraft |
| CN105722046A (en) * | 2016-04-08 | 2016-06-29 | 重庆邮电大学 | Implementation method for TD-LTE emergency communication system forced interposing/forced releasing service |
| CN109484651A (en) * | 2018-11-16 | 2019-03-19 | 中电科航空电子有限公司 | A kind of civilian jumbo jet main cabin core system |
Non-Patent Citations (3)
| Title |
|---|
| 基于以太网的民用飞机客舱网络架构设计;施俞行等;《计算机***应用》;20170715(第07期);全文 * |
| 基于内话***的空管语音通信架构设计与实现;陈巧雅;《中国民航飞行学院学报》;20180315(第02期);全文 * |
| 飞机客舱清洁人员调度的优化研究;洪炯哲等;《机电工程技术》;20200220(第02期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112188425A (en) | 2021-01-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112188425B (en) | Communication method for civil aircraft passenger cabin internal call | |
| JP4018115B2 (en) | Call control in telecommunications systems. | |
| US7136663B2 (en) | Method for controlling a communications channel shared by several stations | |
| EP1734772B1 (en) | Method of uplink preemption by later entry user equipment in trunking group with established group call | |
| CN109257087A (en) | satellite cluster real-time voice group call control method | |
| GB2320861A (en) | Call contention arbitration | |
| US6188882B1 (en) | Allocating emergency speech items in a mobile communication system | |
| CN107222849B (en) | Multi-terminal voice speaking right distribution method for broadband cluster system | |
| CN101383996A (en) | Method and device for avoiding request collision in short data service | |
| CN109586890A (en) | A kind of multiple wireless duplex communication method and system | |
| EP1768423A1 (en) | A method of digital trunked communication system fast call setup | |
| CN107635197B (en) | Method for controlling user's speaking right in MCPTT system | |
| CN101505484B (en) | Method for implementing voice group call resource recovery | |
| US6337905B1 (en) | System for controlling automatic call distribution service | |
| WO2000035231A1 (en) | Radio communication system | |
| CN110855844A (en) | LTE (Long term evolution) and DMR (digital mobile radio) hybrid system and call priority processing method | |
| CN101287179A (en) | Controlling method and apparatus for group calling service | |
| CN108377472B (en) | Method and system for establishing merged group call | |
| WO2006108346A1 (en) | Method of transmitting uplink access request by a user in a trunked group | |
| CN108769932B (en) | Management method of group call control right under TD-LTE broadband trunking communication system | |
| CN105430098B (en) | Rail switching scheduling system with scanning priority | |
| CN100395984C (en) | Method of realizing clustered business information broadcasting by utilizing short message way | |
| JP2001268005A (en) | Wireless communication system in airport, wireless communication controller in airport, group controller and integrated management unit | |
| EP1971162A1 (en) | Method for terminals to switch the reverse traffic channels in cdma group call service | |
| JPH09172495A (en) | Multi-spot and multi-channel connector in digital integrated network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |