CN111083803B - Method and system for realizing communication between public network interphone and DMR interphone - Google Patents
Method and system for realizing communication between public network interphone and DMR interphone Download PDFInfo
- Publication number
- CN111083803B CN111083803B CN201911253292.9A CN201911253292A CN111083803B CN 111083803 B CN111083803 B CN 111083803B CN 201911253292 A CN201911253292 A CN 201911253292A CN 111083803 B CN111083803 B CN 111083803B
- Authority
- CN
- China
- Prior art keywords
- interphone
- public network
- dmr
- signal
- voice
- 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
- H04Q—SELECTING
- H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
- H04Q5/24—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange for two-party-line systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/3833—Hand-held transceivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
-
- 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
- H04W4/10—Push-to-Talk [PTT] or Push-On-Call services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
-
- 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)
- Multimedia (AREA)
- Telephonic Communication Services (AREA)
Abstract
The invention discloses a method and a system for realizing communication between a public network interphone and a DMR interphone, wherein the method comprises the following steps: the second public network interphone receives the DMR signal sent by the DMR interphone; the second public network interphone converts the received DMR signal into a public network signal, and sends the public network signal to the first public network interphone, so that the first public network interphone and the DMR interphone establish unidirectional communication. According to the invention, the second public network interphone provided with the DMR module is used as a bridge between the first public network interphone and the DMR interphone, so that communication between the first public network interphone and the DMR interphone is realized, the application scene of the DMR interphone is expanded, and convenience is brought to a user in using the DMR interphone.
Description
Technical Field
The invention relates to the field of intercom communication, in particular to a method and a system for realizing communication between a public network intercom and a DMR (digital mobile radio) intercom.
Background
Two types of interphones are available in the market, one type of interphone needs a network and a server to realize mutual communication, the interphone transmits a signal of a certain machine to the server, and then the server is distributed to other interphones, and the interphone is called a public network interphone; another interphone is conventional, does not need a network, transmits and receives digital signals through a DMR module, does not need to transit through a server, but has a very small effective communication range, usually only a few kilometers, and cannot receive signals beyond the range, and is called as a DMR interphone.
In the prior art, the public network interphone and the DMR interphone cannot communicate with each other due to different built-in modules, so that the application range of the DMR interphone is severely limited.
Accordingly, the prior art is still in need of improvement and development.
Disclosure of Invention
In view of the shortcomings of the prior art, the invention aims to provide a method and a system for realizing communication between a public network interphone and a DMR interphone, and aims to solve the technical problems that the application of the DMR interphone is limited and inconvenience is brought to a user in using the DMR interphone because the conventional public network interphone and the conventional DMR interphone cannot realize mutual communication.
The technical scheme of the invention is as follows:
the method for realizing communication between the public network interphone and the DMR interphone comprises the following steps of:
the second public network interphone receives the DMR signal sent by the DMR interphone;
the second public network interphone converts the received DMR signal into a public network signal, and sends the public network signal to the first public network interphone, so that the first public network interphone and the DMR interphone establish unidirectional communication.
The method for realizing communication between the public network interphone and the DMR interphone further comprises the following steps:
the second public network interphone receives a public network signal sent by the first public network interphone;
the second public network interphone converts the received public network signals into DMR signals, and sends the DMR signals to the DMR interphone, so that the first public network interphone and the DMR interphone establish two-way communication.
The method for realizing communication between the public network interphone and the DMR interphone, wherein the step of receiving the DMR signal sent by the DMR interphone by the second public network interphone comprises the following steps:
the DMR interphone sends the voice sent by the user to the second public network interphone in the form of a DMR signal;
and the second public network interphone analyzes the DMR signal into voice according to the built-in DMR module and plays the voice through a loudspeaker.
The method for implementing communication between the public network interphone and the DMR interphone, wherein the second public network interphone converts the received DMR signal into a public network signal, and sends the public network signal to the first public network interphone, so that the first public network interphone and the DMR interphone establish unidirectional communication, includes the steps of:
the second public network interphone picks up the voice through a built-in pickup, converts the voice into a public network signal and sends the public network signal to the first public network interphone;
the first public network interphone analyzes the received public network signals into voice and plays the voice through a loudspeaker, so that the first public network interphone and the DMR interphone establish unidirectional communication.
The method for implementing communication between the public network interphone and the DMR interphone, wherein the step of sending the public network signal to the first public network interphone by the second public network interphone comprises the following steps:
the second public network interphone sends the public network signal to a server through a public network;
and the server sends the public network signal to the first public network interphone through a public network.
The method for implementing communication between the public network interphone and the DMR interphone, wherein the step of receiving the public network signal sent by the first public network interphone by the second public network interphone comprises the following steps:
the first public network interphone sends the voice sent by the user to the second public network interphone in the form of a public network signal;
and the second public network interphone analyzes the received public network signal into voice and plays the voice through a loudspeaker.
The method for implementing communication between the public network interphone and the DMR interphone, wherein the second public network interphone converts the received public network signal into a DMR signal, and sends the DMR signal to the DMR interphone, so that the first public network interphone and the DMR interphone establish two-way communication, includes the steps of:
the second public network interphone picks up the voice through a built-in pickup and converts the voice into a DMR signal through a built-in DMR module to be sent to the DMR interphone;
the DMR interphone analyzes the received DMR signal into voice and plays the voice through a loudspeaker, so that the first public network interphone and the DMR interphone establish two-way communication.
The invention relates to a system for realizing communication between a public network interphone and a DMR interphone, wherein the system comprises the DMR interphone, a first public network interphone and a second public network interphone provided with a DMR module, and the second public network interphone is used for executing the steps of the method for realizing communication between the public network interphone and the DMR interphone.
The beneficial effects are that: the invention provides a method for realizing communication between a public network interphone and a DMR interphone, which uses a second public network interphone provided with a DMR module as a bridge between the first public network interphone and the DMR interphone to realize communication between the first public network interphone and the DMR interphone, thereby expanding the application scene of the DMR interphone and bringing convenience for users to use the DMR interphone.
Drawings
Fig. 1 is a flowchart of a first embodiment of a method for implementing communication between a public network interphone and a DMR interphone according to the present invention.
Fig. 2 is a flowchart of a second embodiment of a method for implementing communication between a public network interphone and a DMR interphone according to the present invention.
Fig. 3 is a schematic diagram of a system structure for implementing communication between a public network interphone and a DMR interphone according to the present invention.
Detailed Description
The invention provides a method and a system for realizing communication between a public network interphone and a DMR interphone, which are used for making the purposes, the technical scheme and the effects of the invention clearer and more definite, and are further described in detail below. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
In the prior art, because the public network interphone and the DMR interphone are different in built-in communication module, mutual communication cannot be performed between the public network interphone and the DMR interphone, and the application range of the DMR interphone is severely limited.
Based on the problems existing in the prior art, the invention provides a method for realizing communication between a public network interphone and a DMR interphone, which is applied to a system for realizing communication between the public network interphone and the DMR interphone, wherein the system comprises the DMR interphone, a first public network interphone and a second public network interphone provided with a DMR module, as shown in fig. 1, and the method comprises the following steps:
s10, the second public network interphone receives the DMR signal sent by the DMR interphone;
s20, the second public network interphone converts the received DMR signal into a public network signal, and sends the public network signal to the first public network interphone, so that the first public network interphone and the DMR interphone establish unidirectional communication.
Specifically, the DMR interphone supports voice communication, data transmission and other supplementary services, and the DMR standard improves the frequency spectrum utilization rate, so that larger communication capacity is brought to the DMR interphone, the communication efficiency is improved, the use cost is saved, and a user can obtain clearer, more reliable, more convenient and more efficient wireless communication service; however, the effective communication range of the DMR interphone is very small, usually only a few kilometers, and signals cannot be received between the DMR interphone and the DMR interphone beyond the range; the communication range of the public network interphone is not limited by the distance under the condition of network, but the use cost of the public network interphone is higher. The public network interphone and the DMR interphone have advantages and disadvantages and application scenes suitable for the public network interphone and the DMR interphone, however, under certain application scenes needing to save cost, the communication between the DMR interphone and the public network interphone needs to be established, but the communication between the DMR interphone and the public network interphone cannot be realized in the prior art.
The DMR module is set in the second public network interphone, and the distance between the second public network interphone and the DMR interphone is within the effective communication range of the second public network interphone, so that the second public network interphone with the DMR module is used as a bridge between the first public network interphone and the DMR interphone, unidirectional communication between the first public network interphone and the DMR interphone can be realized, namely, the first public network interphone can receive and hear voice sent by the DMR interphone in a unidirectional manner, thereby expanding the application scene of the DMR interphone and bringing convenience to users.
In some embodiments, as shown in fig. 2, the method for implementing communication between the public network interphone and the DMR interphone further includes the steps of:
s100, the second public network interphone receives a public network signal sent by the first public network interphone;
s200, the second public network interphone converts the received public network signals into DMR signals, and sends the DMR signals to the DMR interphone, so that the first public network interphone and the DMR interphone establish two-way communication.
The method for realizing communication between the public network interphone and the DMR interphone is applicable to a fixed scene, for example, a user carries the DMR interphone in an environment (mountain forest) without public network to perform task search, and at this time, the DMR interphone generally needs to communicate with a first public network interphone in a remote public network environment to report the search situation. In this fixed scene, because the communication between the DMR interphone and the public network interphone cannot be realized in the prior art, the existing public network interphone and DMR interphone cannot be used in this scene, resulting in limited use. According to the method for realizing communication between the public network interphone and the DMR interphone, the second public network interphone provided with the DMR module is used as a bridge between the first public network interphone and the DMR interphone, the distance between the second public network interphone and the DMR interphone is in the effective communication range of the first public network interphone and the DMR interphone, the second public network interphone can convert the DMR signal sent by the DMR interphone into the public network signal and send the public network signal to the first public network interphone, and the first public network interphone can receive and hear voice sent by the DMR interphone; meanwhile, the second public network interphone can also convert the public network signal sent by the first public network interphone into a DMR signal and send the DMR signal to the DMR interphone, so that the DMR interphone can receive and hear the voice sent by the first public network interphone. That is, the second public network interphone including the DMR module is set in the effective communication range of the DMR interphone, so that the two-way communication between the first public network interphone and the DMR interphone can be realized, the application scenarios of the DMR interphone and the public network interphone are expanded, and convenience is brought to the user in using the DMR interphone.
In some specific embodiments, the step of receiving, by the second public network interphone, the DMR signal sent by the DMR interphone includes: the DMR interphone sends the voice sent by the user to the second public network interphone in the form of a DMR signal; and the second public network interphone analyzes the DMR signal into voice according to the built-in DMR module and plays the voice through a loudspeaker.
In this embodiment, since the DMR module is disposed in the second public network intercom, the second public network intercom can analyze the DMR signal sent by the DMR intercom into the voice sent by the user and play the voice. The DMR interphone can better inhibit noise, particularly at the edge of coverage, and has better voice quality than that of a simulation technology; the DMR improves the effective coverage of wireless communication, so that users can freely cope with the working situation of continuous change of the field. One major advantage of DMR interphones is that a single 12.5kHz channel can be made to support 2 simultaneous or independent calls. In the DMR standard, time Division Multiple Access (TDMA) can reserve a 12.5kHz bandwidth and divide it into 2 alternating time slots. Each time slot may operate as a separate communication channel and have an equivalent bandwidth (6.25 kHz), the original channel may still maintain the same configuration as the analog 12.5kHz signal. This means that DMR is fully compatible with existing licensed PMR frequency bins, so that there is no need to reconfigure or re-purchase frequency bins, while the capacity of the 12.5kHz bandwidth can be doubled. Another advantage of DMR interphone is that only one repeater, one antenna and one diplexer are needed to have two channels, which does not require additional repeaters or combination devices, which means that the cost of DMR users can be reduced and the networking scheme thereof can be simplified; the DMR interphone also has the advantages of longer service life of the battery and strong communication privacy.
In some specific embodiments, the step of the second public network interphone converting the received DMR signal into a public network signal and sending the public network signal to the first public network interphone to enable the first public network interphone to establish unidirectional communication with the DMR interphone includes: the second public network interphone picks up the voice through a built-in pickup, converts the voice into a public network signal and sends the public network signal to the first public network interphone; the first public network interphone analyzes the received public network signals into voice and plays the voice through a loudspeaker, so that the first public network interphone and the DMR interphone establish unidirectional communication.
In some embodiments, the step of the second public network interphone transmitting the public network signal to the first public network interphone includes: the second public network interphone sends the public network signal to a server through a public network; and the server sends the public network signal to the first public network interphone through a public network.
In some embodiments, the step of receiving, by the second public network interphone, the public network signal sent by the first public network interphone includes: the first public network interphone sends the voice sent by the user to the second public network interphone in the form of a public network signal; and the second public network interphone analyzes the received public network signal into voice and plays the voice through a loudspeaker.
In some embodiments, the step of converting the received public network signal into a DMR signal by the second public network intercom and sending the DMR signal to the DMR intercom, so that the first public network intercom and the DMR intercom establish two-way communication includes: the second public network interphone picks up the voice through a built-in pickup and converts the voice into a DMR signal through a built-in DMR module to be sent to the DMR interphone; the DMR interphone analyzes the received DMR signal into voice and plays the voice through a loudspeaker, so that the first public network interphone and the DMR interphone establish two-way communication.
In some embodiments, a system for implementing communication between a public network interphone and a DMR interphone is further provided, as shown in fig. 3, where the system includes a DMR interphone 10, a first public network interphone, and a second public network interphone 30 provided with a DMR module, where the second public network interphone is configured to execute the steps of the method for implementing communication between a public network interphone and a DMR interphone according to the present invention.
In summary, the method for implementing communication between the public network interphone and the DMR interphone is provided in the present invention, and the second public network interphone provided with the DMR module is used as a bridge between the first public network interphone and the DMR interphone, so as to implement communication between the first public network interphone and the DMR interphone, thereby expanding an application scenario of the DMR interphone and bringing convenience to a user to use the DMR interphone.
It is to be understood that the invention is not limited in its application to the examples described above, but is capable of modification and variation in light of the above teachings by those skilled in the art, and that all such modifications and variations are intended to be included within the scope of the appended claims.
Claims (3)
1. The method for realizing communication between the public network interphone and the DMR interphone is characterized by being applied to a system for realizing communication between the public network interphone and the DMR interphone, wherein the system comprises the DMR interphone, a first public network interphone and a second public network interphone provided with a DMR module, and the method comprises the following steps:
the second public network interphone receives the DMR signal sent by the DMR interphone;
the second public network interphone converts the received DMR signal into a public network signal, and sends the public network signal to the first public network interphone, so that the first public network interphone and the DMR interphone establish unidirectional communication;
the method also comprises the steps of:
the second public network interphone receives a public network signal sent by the first public network interphone;
the second public network interphone converts the received public network signal into a DMR signal, and sends the DMR signal to the DMR interphone, so that the first public network interphone and the DMR interphone establish two-way communication;
the step of receiving the DMR signal sent by the DMR interphone by the second public network interphone includes:
the DMR interphone sends the voice sent by the user to the second public network interphone in the form of a DMR signal;
the second public network interphone analyzes the DMR signal into voice according to a built-in DMR module and plays the voice through a loudspeaker;
the step that the second public network interphone converts the received DMR signal into a public network signal and sends the public network signal to the first public network interphone, so that the first public network interphone and the DMR interphone establish unidirectional communication comprises the following steps:
the second public network interphone picks up the voice through a built-in pickup, converts the voice into a public network signal and sends the public network signal to the first public network interphone;
the first public network interphone analyzes the received public network signals into voice and plays the voice through a loudspeaker, so that the first public network interphone and the DMR interphone establish unidirectional communication;
the step of receiving the public network signal sent by the first public network interphone by the second public network interphone comprises the following steps:
the first public network interphone sends the voice sent by the user to the second public network interphone in the form of a public network signal;
the second public network interphone analyzes the received public network signals into voice and plays the voice through a loudspeaker;
the step that the second public network interphone converts the received public network signal into a DMR signal, and sends the DMR signal to the DMR interphone, so that the first public network interphone and the DMR interphone establish two-way communication comprises the following steps:
the second public network interphone picks up the voice through a built-in pickup and converts the voice into a DMR signal through a built-in DMR module to be sent to the DMR interphone;
the DMR interphone analyzes the received DMR signal into voice and plays the voice through a loudspeaker, so that the first public network interphone and the DMR interphone establish two-way communication;
the distance between the second public network interphone and the DMR interphone is within the communication range of the second public network interphone.
2. The method for implementing communication between a public network interphone and a DMR interphone according to claim 1, wherein the step of the second public network interphone transmitting the public network signal to the first public network interphone includes:
the second public network interphone sends the public network signal to a server through a public network;
and the server sends the public network signal to the first public network interphone through a public network.
3. A system for implementing communication between a public network interphone and a DMR interphone, wherein the system comprises the DMR interphone, a first public network interphone and a second public network interphone provided with a DMR module, and the second public network interphone is used for executing the steps of the method for implementing communication between a public network interphone and the DMR interphone according to any one of claims 1-2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911253292.9A CN111083803B (en) | 2019-12-09 | 2019-12-09 | Method and system for realizing communication between public network interphone and DMR interphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911253292.9A CN111083803B (en) | 2019-12-09 | 2019-12-09 | Method and system for realizing communication between public network interphone and DMR interphone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111083803A CN111083803A (en) | 2020-04-28 |
| CN111083803B true CN111083803B (en) | 2023-06-23 |
Family
ID=70313520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911253292.9A Active CN111083803B (en) | 2019-12-09 | 2019-12-09 | Method and system for realizing communication between public network interphone and DMR interphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111083803B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112865882B (en) * | 2021-01-19 | 2024-05-10 | 南京中新赛克科技有限责任公司 | Anti-frequency offset DMR interphone signal rapid identification method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206237395U (en) * | 2016-12-15 | 2017-06-09 | 力声（福建）通信股份有限公司 | A kind of public network intercom |
| CN207573346U (en) * | 2017-12-05 | 2018-07-03 | 洪泉益 | A kind of the whole network leads to the intercom with DA compatibility one |
| CN108712184A (en) * | 2018-05-16 | 2018-10-26 | 深圳市鼎泰富科技有限公司 | A kind of handheld terminal for supporting network talkback and DMR intercommunication intercommunications |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080180213A1 (en) * | 2006-11-07 | 2008-07-31 | Flax Stephen W | Digital Intercom Based Data Management System |
-
2019
- 2019-12-09 CN CN201911253292.9A patent/CN111083803B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206237395U (en) * | 2016-12-15 | 2017-06-09 | 力声（福建）通信股份有限公司 | A kind of public network intercom |
| CN207573346U (en) * | 2017-12-05 | 2018-07-03 | 洪泉益 | A kind of the whole network leads to the intercom with DA compatibility one |
| CN108712184A (en) * | 2018-05-16 | 2018-10-26 | 深圳市鼎泰富科技有限公司 | A kind of handheld terminal for supporting network talkback and DMR intercommunication intercommunications |
Non-Patent Citations (1)
| Title |
|---|
| 手机与对讲机融合通信在森林防火中的应用;栾大跃;《中国无线电》;20170526(第05期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111083803A (en) | 2020-04-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11909688B2 (en) | Apparatus and method in wireless communication system, and computer-readable storage medium | |
| EP3154310B1 (en) | System and method for one cell to cover multiple areas | |
| CN101595682B (en) | Direct link setup mechanisms for wireless lANs | |
| JP5184654B2 (en) | FDD in-band backhauling and method thereof | |
| US8594724B2 (en) | Multi-mode convergence method, multi-mode combination method, and devices thereof | |
| US20070010197A1 (en) | Radio communication system, relay apparatus, and remote radio base station apparatus | |
| KR101936019B1 (en) | A Coordinated Direct and Relay Transmission for Simultaneous Wireless Information and Power Transfer in Cooperative Non-Orthogonal Multiple Access Systems | |
| US20230262677A1 (en) | Bandwidth Part Switching Method, Apparatus, and System | |
| JP2004312150A (en) | Digital radio-over-fiber transmission system | |
| KR20160106996A (en) | Remote Radio Unit for Communicating with Digital Unit through Radio Over Fiber in Mobile Communication Base Station | |
| KR101024574B1 (en) | Base Station and Base Station System | |
| CN111083803B (en) | Method and system for realizing communication between public network interphone and DMR interphone | |
| KR101954226B1 (en) | Base station apparatus and signal processing method in wireless communication system | |
| JP2020077973A (en) | Relay device, relay method, and relay program | |
| US9210612B2 (en) | Communication system, method and device | |
| JP2001095042A (en) | Radio communication system for improving performance in backward direction | |
| US10154487B2 (en) | Data flow relay device and communication device | |
| KR102110142B1 (en) | Distributed unit device, data stream delivery method, data stream conversion device | |
| CN113891339A (en) | Communication system and near-end machine | |
| CN101420260B (en) | Radio electric device node, distributed radio communication base station and communication method therefor | |
| KR20210061107A (en) | Radio Unit, method for digital unit interworking and method for frame structure determination of slave equipment using the same | |
| WO2008012865A1 (en) | Parent station device, child station device, and optical signal transmission system | |
| CN114286365B (en) | Data feedback method and system based on base station electrically tunable antenna AISG | |
| CN213717975U (en) | Novel 5G micropower amplification system | |
| WO2024045081A1 (en) | Radio frequency system |
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 |