CN109874179B - Communication system, main controller, wireless processing unit and forwarding method - Google Patents
Communication system, main controller, wireless processing unit and forwarding method Download PDFInfo
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Abstract
The application provides a call system, a main controller, a wireless processing unit and a forwarding method, wherein the call system comprises the main controller and at least one wireless processing unit; local area networks with different frequency bands for each wireless processing unit; the main controller is connected with the wireless processing unit through an internet protocol; the wireless processing unit is used for communicating with at least one call terminal, processing the voice signal of the call terminal and sending the voice signal to the main controller; the main controller is used for receiving the voice signals sent by the wireless processing units and forwarding the voice signals sent by one of the wireless processing units to the other wireless processing units; the wireless processing unit is further used for sending the voice signal forwarded by the main controller to the call terminal; the method and the device effectively realize expansion of the call system.
Description
Technical Field
The present disclosure relates to the field of telecine broadcasting, and in particular, to a call system, a main controller, a wireless processing unit, and a forwarding method.
Background
In educational live, film shooting, television live, live production, etc. scenarios, a voice intercom system is often required to achieve real-time voice interaction between the staff located at the shooting site and the staff located at the studio. In the related art, a wireless communication system has been implemented in a shooting production site, that is, the wireless communication system includes a host end and a corresponding number of communication terminals, and the wireless communication system is mainly connected to each communication terminal by the host end in a wireless manner, so that communication between the host end and the communication terminal and between the communication terminals is implemented.
However, in the course of implementing the present application, the inventors found that: because of the technology of wireless communication, in general, the number of call terminals connected to a host in a wireless call system is limited, and there is a great limitation in the capacity expansion of call terminals.
Disclosure of Invention
In view of this, the embodiments of the present application provide a call system, a main controller, a wireless processing unit, and a forwarding method.
According to a first aspect of embodiments of the present application, there is provided a call system, including a main controller and at least one wireless processing unit; local area networks with different frequency bands for each wireless processing unit;
the main controller is connected with the wireless processing unit through an internet protocol;
the wireless processing unit is used for communicating with at least one call terminal, processing the voice signal of the call terminal and sending the voice signal to the main controller;
the main controller is used for receiving the voice signals sent by the wireless processing units and forwarding the voice signals sent by one of the wireless processing units to the other wireless processing units;
the wireless processing unit is further configured to send the voice signal forwarded by the main controller to the call terminal.
Optionally, the master controller and each wireless processing unit form a star topology network and/or a daisy-chained network through a network port.
Optionally, the main controller is further configured to generate a mixing instruction corresponding to each call terminal according to all received voice signals, and send the mixing instruction to a corresponding wireless processing unit;
the wireless processing unit processes the voice signal of the call terminal, including: and according to the voice mixing instruction and all received voice signals, voice signals which are not the call terminal are subjected to voice mixing processing, and the generated voice mixing signals are sent to the call terminal.
Optionally, the call system further comprises at least one call terminal;
the communication terminal is used for collecting voice signals and sending the voice signals to the wireless processing unit, and receiving and playing the mixed sound signals sent by the wireless processing unit.
Optionally, the wireless processing unit communicates with the call terminal based on WIFI technology or DECT technology.
Optionally, the wireless processing unit is an active antenna unit.
According to a second aspect of embodiments of the present application, there is provided a main controller, including a processing module and at least one portal;
the processing module is connected with the network port;
the network port is used for being connected with at least one wireless processing unit and receiving voice signals sent by the wireless processing units; wherein, each wireless processing unit is in local area networks of different frequency bands;
the processing module is used for determining the voice signals to be sent by each network port based on all the received voice signals;
the network port is further configured to forward the voice signal sent by one of the wireless processing units to the other wireless processing units based on the voice signal to be sent.
Optionally, the processing module is further configured to generate a mixing instruction corresponding to the call terminal corresponding to each wireless processing unit according to all received voice signals;
the network port is further configured to send the audio mixing instruction to a corresponding wireless processing unit.
According to a third aspect of embodiments of the present application, a wireless processing unit is provided, including a wireless baseband module, a voice processing module, and at least one network port;
the voice processing module is respectively connected with the wireless baseband module and the network port;
the wireless baseband module is used for communicating with at least one call terminal, receiving a voice signal sent by the call terminal and sending the voice signal forwarded by the main controller to the call terminal;
the voice processing module is used for processing the voice signal of the call terminal; and processing the voice signal forwarded by the main controller;
the network port is used for being connected with the main controller, sending the voice signal of the call terminal to the main controller, and receiving the voice signals of other wireless processing units forwarded by the main controller.
According to a fourth aspect of embodiments of the present application, there is provided a forwarding method applied to the call system according to any one of the first aspect, where the method is executed by a main controller, and includes the following steps:
receiving voice signals transmitted by each wireless processing unit; wherein, each wireless processing unit is in local area networks of different frequency bands; the main controller is connected with the wireless processing unit through an internet protocol;
and forwarding the voice signal sent by one of the wireless processing units to other wireless processing units so that the wireless processing units process the forwarded voice signal and send the processed voice signal.
The embodiment of the application has the following beneficial effects:
the embodiment of the application provides a call system, which comprises a main controller and at least one wireless processing unit, wherein the main controller is connected with the wireless processing units through an internet protocol and is used for receiving voice signals sent by each wireless processing unit and forwarding the voice signals sent by one wireless processing unit to other wireless processing units.
Drawings
Fig. 1 is a block diagram of a call system according to an exemplary embodiment of the present application.
Fig. 2 is a block diagram of a star topology network formed by a main controller and a wireless processing unit according to an exemplary embodiment of the present application through a network port.
Fig. 3 is a block diagram of a daisy-chained network formed by a main controller and a wireless processing unit according to an exemplary embodiment of the present application.
Fig. 4 is a block diagram of a main controller according to an exemplary embodiment of the present application.
Fig. 5 is a block diagram of a wireless processing unit according to an exemplary embodiment of the present application.
Fig. 6 is a block diagram of a call terminal according to an exemplary embodiment of the present application.
Fig. 7 is a flow chart of a forwarding method according to an exemplary embodiment of the present application.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the accompanying claims.
The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.
It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, a first message may also be referred to as a second message, and similarly, a second message may also be referred to as a first message, without departing from the scope of the present application. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "responsive to a determination", depending on the context.
Although the wireless telephony system in the related art can implement a convenient wireless telephony function, the number of telephony terminals 30 connected to one host side in the wireless telephony system is generally limited due to the technology of wireless communication, and there is a great limitation in the capacity expansion of the telephony terminals 30. In view of the foregoing, the embodiments of the present application provide a call system, which can solve the problem that the call terminal 30 connected based on the wireless communication technology is difficult to expand in the related art, and please refer to fig. 1, which is a block diagram of the call system shown in an exemplary embodiment of the present application.
In the embodiment shown in fig. 1, the call system comprises a main controller 10 and at least one wireless processing unit 20.
It should be noted that, each wireless processing unit 20 is located in a local area network with different frequency bands.
The main controller 10 is connected to the wireless processing unit 20 via an internet protocol.
The wireless processing unit 20 is configured to communicate with at least one call terminal 30, process a voice signal of the call terminal 30, and send the voice signal to the main controller 10.
The main controller 10 is configured to receive the voice signal sent by each wireless processing unit 20, and forward the voice signal sent by one of the wireless processing units 20 to the other wireless processing units 20;
the wireless processing unit 20 is further configured to send the voice signal forwarded by the main controller 10 to the call terminal 30.
In an embodiment, specifically, the main controller 10 is connected to the wireless processing units 20 through a wired network, so as to implement connection between the wireless processing units 20 of the local area network in different frequency bands; wherein the wired network refers to a computer network connected by coaxial cable, twisted pair and optical fiber.
In one possible implementation manner, as shown in fig. 2, the main controller 10 is provided with a plurality of ports, at least one port connected with the main controller 10 is correspondingly provided on the wireless processing unit 20, then a star topology network can be formed between the main controller 10 and the wireless processing unit 20 through the ports, in the connection manner of the star topology network, the number of the ports provided on the main controller 10 determines the number of the wireless processing units 20 that can be interconnected, for example, 5 ports are provided on the main controller 10, and then 5 wireless processing units 20 can be correspondingly connected; in this embodiment, the main controller 10 and the wireless processing units 20 are connected in a star topology manner, the voice data of each wireless processing unit 20 is sent to the main controller 10 through a wired network, and the main controller 10 performs unified processing and distribution, so that the mutual communication of the mobile terminals between the wireless processing units 20 of the local area networks in different frequency bands is realized, and the area expansion of the communication system can be effectively realized.
In another possible implementation manner, as shown in fig. 3, at least two ports may be disposed on the wireless processing units 20, at least one port is disposed on the main controller 10, so that each wireless processing unit 20 is cascaded in a chain manner through the port, and finally, the main controller 10 and the wireless processing units 20 form a daisy-chained network through the port.
It may be understood that, when a plurality of ports are provided on the main controller 10 and at least two ports are provided on the wireless processing units 20, as shown in fig. 1, the call system may combine two interconnection modes of a star topology and a daisy chain to implement connection between the main controller 10 and the wireless processing units 20, in one example, if 10 wireless processing units 20 are currently connected to the main controller 10, and 5 ports are provided on the main controller 10, 6 of the wireless processing units 20 and the main controller 10 may be selected to form a daisy chain network through the ports, and the remaining 4 wireless processing units 20 and the main controller 10 may be selected to form a star topology network through the ports; according to the embodiment of the application, the main controller 10 and each wireless processing unit 20 are interconnected in a daisy-chained and star-shaped topology mode, so that the expansion of the conversation distance and the area of the conversation system is effectively realized.
In one embodiment, as shown in fig. 1, the call system further includes at least one call terminal 30, where the call terminal 30 is configured to be communicatively connected to the wireless processing unit 20, collect a voice signal and send the voice signal to the wireless processing unit 20, and receive and play a forwarded voice signal sent by the main controller 10 and sent by the wireless processing unit 20; as an example, for example, in the current call system, there are two call terminals 30 (hereinafter referred to as a first call terminal 30 and a second call terminal 30 respectively for distinction) that are respectively connected to two wireless processing units 20 (hereinafter referred to as a first wireless processing unit 20 and a second wireless processing unit 20 respectively for distinction), the first call terminal 30 collects a voice signal and sends the voice signal to the first wireless processing unit 20, the first wireless processing unit 20 receives the voice signal and then sends the voice signal to the main controller 10, and the main controller 10 forwards the voice signal to the second wireless processing unit 20, and then sends the voice signal to the second call terminal 30 wirelessly connected to the second call terminal by the second wireless processing unit 20, and accordingly, the voice signal collected by the second call terminal 30 is also sent to the first call terminal 30 in the same manner, so that interworking between two call terminals 30 in different frequency band local area networks is achieved.
In an example, the communication between the call terminal 30 and the wireless processing unit 20 may be based on WIFI technology, where the working frequency band is 2.4GHz or 5GHz, and supports a tdma technology and a full duplex call, and the WIFI technology is a common technical means in the prior art, and will not be described herein.
In another example, since the communication between the call terminal 30 and the wireless processing unit 20 implemented by WIFI technology may have a problem of network jitter, so as to affect the quality of voice communication, and its stability and reliability are poor, based on this, the embodiment of the present application proposes a more preferred scheme, where the call terminal 30 and the wireless processing unit 20 may communicate based on DECT technology, and its working frequency band is 1.9GHz or 2.4GHz, and support a time division multiple access technology and a full duplex call, and DECT is a standard determined by ETSI, and this technology is characterized by providing high quality, low delay voice service; supporting data communication services; supporting automatic lossless handover including carrier/slot handover due to deterioration of channel characteristics in a cell, and handover due to movement of a user; a dynamic channel allocation technology is adopted, so that complex frequency planning is not required; is a low power system; a high traffic density can be provided for a microcell system; mature technology is adopted to reduce equipment and use cost; the data can be encrypted, so that the confidentiality is good; the method has perfect authentication and authentication mechanism and good safety; the air interface has strict technical specifications so as to ensure that mobile phones produced by any manufacturer can be connected with base stations produced by other manufacturers; only one access technology, not related to the physical structure of the system, provides flexibility of design and creation opportunities for various manufacturers; DECT radio frequency division is distributed throughout the world, mainly comprising the 1.9GHz band and the 2.4GHz band. Compared with the communication connection between the call terminal 30 and the wireless processing unit 20 implemented by the WIFI technology, the communication connection between the call terminal 30 and the wireless processing unit 20 implemented by the DECT technology is more stable and reliable.
When the call terminal 30 wants to join a session, an access request needs to be initiated to the wireless processing unit 20, the wireless processing unit 20 sends the access request to the master controller 10, the access request includes an ID identifying the call terminal 30, the master controller 10 records the call terminal 30 based on the ID, then generates an access response based on the access request and returns the access response to the wireless processing unit 20, the wireless processing unit 20 sends the access response to the call terminal 30, and after the call terminal 30 receives the access response, the call terminal 30 joins the session.
In one embodiment, after the interworking of the wireless processing units 20 of the local area network in different frequency bands is achieved, in order to further achieve the multiparty call problem between the plurality of call terminals 30 that each wireless processing unit 20 communicates with, the main controller 10 is further configured to generate a mixing instruction corresponding to each call terminal 30 according to all the voice signals received from each wireless processing unit 20, and send the mixing instruction to the corresponding wireless processing unit 20; the wireless processing unit 20 processes the voice signal of the call terminal 30 including: receiving the mixing instruction, according to the mixing instruction and all received voice signals (including the voice signal received from the main controller 10 and the voice signal received from at least one connected call terminal 30), performing mixing processing on the voice signal of the call terminal 30, and sending the generated mixing signal to the call terminal 30, where correspondingly, the call terminal 30 is specifically configured to receive and play the mixing signal sent by the wireless processing unit 20, so as to ensure that the call terminal 30 can receive the voice data of other call terminals 30, and implement a multi-party call process.
In one example, for example, the main controller 10 in the current call system is connected with 2 wireless processing units 20, which are respectively a first wireless processing unit 20 and a second wireless processing unit 20, the first wireless processing unit 20 is currently connected with 2 call terminals 30 (respectively, a first call terminal 30 and a second call terminal 30), the second wireless processing unit 20 is connected with 3 call terminals 30 (respectively, a third call terminal 30, a fourth call terminal 30 and a fifth call terminal 30), that is, a process of currently performing a 5-way call, the first wireless processing unit 20 processes (for example, decodes, or D/a converts, etc.) the voice signals received from the first call terminal 30 and the second call terminal 30 and then sends the processed voice signals to the main controller 10 through a network port, and similarly, the second wireless processing unit 20 processes the voice signals received from the third, fourth and fifth call terminals 30, 30 and then transmits them to the main controller 10 through the internet access, the main controller 10 forwards the 2-way voice signals received from the first wireless processing unit 20 to the second wireless processing unit 20 and forwards the 3-way voice signals received from the second wireless processing unit 20 to the first wireless processing unit 20, and generates a mixing instruction corresponding to each call terminal 30 based on the received 5-way voice signals and transmits them to the respective wireless processing units 20, respectively, so that the wireless processing unit 20 generates a mixing signal corresponding to each call terminal 30 based on the mixing instruction and all the received voice data, such as after the first wireless processing unit 20 receives the mixing instruction, for the first call terminal 30, based on the corresponding audio mixing instruction, the audio signals of the other call terminals 30 (the second call terminal 30, the third call terminal 30, the fourth call terminal 30 and the fifth call terminal 30) are accumulated, and the generated audio mixing signals are sent to the first call terminal 30, so that the first call terminal 30 can answer the audio data of the other 4 call terminals 30, and similarly, the other 4 call terminals 30 answer the audio data of the other call terminals 30 based on the same process, thereby realizing the process of multiparty call.
It can be understood that, if there are only 2 call terminals 30 currently in the process of making a call, in one case, the 2 call terminals 30 are wirelessly connected to the same wireless processing unit 20, and then the wireless processing unit 20 sends voice data of one party to the other party under the control of the main controller 10 after sending the voice data to the main controller 10; in another case, the 2 call terminals 30 are respectively connected to different wireless processing units 20, and the main controller 10 needs to forward voice data of one party to the other party and then control the wireless processing units 20 to transmit.
It can be seen that the embodiment of the present application provides a call system, including a main controller 10 and at least one wireless processing unit 20, where the main controller 10 is connected with the wireless processing units 20 through an internet protocol, and is configured to receive a voice signal sent by each wireless processing unit 20, and forward the voice signal sent by one of the wireless processing units 20 to other wireless processing units 20, and through the main controller 10, the embodiment of the present application implements connection of each wireless processing unit 20 in a local area network in different frequency bands, so that the voice signal received by the wireless processing unit 20 from the call terminal 30 can be forwarded to another wireless processing unit 20 through the main controller 10, so that a call terminal 30 connected to any wireless processing unit 20 can perform a call process with a call terminal 30 connected to another wireless processing unit 20, so that the call terminals 30 that can simultaneously call are increased, thereby implementing not only the capacity expansion of the call terminal 30, but also implementing the expansion of the call distance and area.
Referring to FIG. 4, a block diagram of a host controller 10 is shown in accordance with an exemplary embodiment of the present application.
In the embodiment shown in fig. 4, the main controller 10 includes a processing module 11 and at least one portal 12; the processing module 11 is connected with the network port 12.
The network port 12 is configured to be connected to at least one wireless processing unit 20, and receive a voice signal sent by each wireless processing unit 20; wherein each wireless processing unit 20 is in a local area network of a different frequency band.
The processing module 11 is configured to determine, based on all the received voice signals, a voice signal to be sent by each network port 12.
The network port 12 is further configured to forward the voice signal sent by one of the wireless processing units 20 to the other wireless processing units 20 based on the voice signal to be sent.
In this embodiment, the main controller 10 realizes connection between the wireless processing units 20 in different frequency bands, and forwarding of voice data between the wireless processing units 20.
Further, to implement the multiparty call of the call terminal 30 wirelessly connected to each wireless processing unit 20, the processing module 11 is further configured to generate a mixing instruction corresponding to the call terminal 30 corresponding to each wireless processing unit 20 according to all the voice signals received from each wireless processing unit 20; the network port 12 is further configured to send the mixing instruction to the corresponding wireless processing unit 20, so that the wireless processing unit 20 performs mixing processing on the voice signal of any call terminal 30 connected to the wireless processing unit based on the mixing instruction and all received voice signals, so as to generate a mixed signal sent to the call terminal 30.
In an embodiment, the processing module 11 may be implemented by any one of the following chips: an FPGA chip, a CPU chip, an APU chip or an MCU chip.
Referring to fig. 5, a block diagram of a wireless processing unit 20 according to an exemplary embodiment of the present application is shown.
In the embodiment shown in fig. 5, the wireless processing unit 20 includes a wireless baseband module 21, a voice processing module 22, and at least one gateway 23;
the voice processing module 22 is respectively connected with the wireless baseband module 21 and the network port 23.
The wireless baseband module 21 is configured to communicate with at least one call terminal 30, receive a voice signal sent by the call terminal 30, and send a voice signal forwarded by the main controller 10 to the call terminal 30.
The voice processing module 22 is configured to process a voice signal of the call terminal 30 and send the voice signal to the network port 23; and processes the voice signal forwarded by the main controller 10 and transmits it to the wireless baseband module 21.
The network port 23 is configured to connect to the main controller 10, send the voice signal of the call terminal 30 to the main controller 10, and receive the voice signal of the other wireless processing unit 20 forwarded by the main controller 10.
The wireless baseband module 21 is further configured to demodulate or decode a voice signal sent by the call terminal 30, send the demodulated or decoded voice signal to the voice processing module 22, modulate or encode a voice signal sent by the main controller 10, and send the modulated or encoded voice signal to the call terminal 30; the voice processing module 22 is configured to perform D/a conversion on the voice signal of the call terminal 30; and performing a/D conversion on the voice signal transmitted from the main controller 10; wherein the wireless baseband module 21 supports DECT technology or WIFI technology.
In an embodiment, the network port 23 is further configured to receive a mixing instruction sent by the main controller 10; the voice processing module 22 is further configured to perform a voice mixing process on the voice signals of the non-call terminal 30 according to the voice mixing instruction and all received voice signals, so as to generate a mixed voice signal; the wireless baseband module 21 is specifically configured to send the mixed signal to the call terminal 30.
In one embodiment, the wireless processing unit 20 is an active antenna unit including a wireless baseband module 21, a voice processing module 22, and at least one network port 23.
Referring to fig. 6, a block diagram of a call terminal 30 according to an exemplary embodiment of the present application is shown.
In the embodiment shown in fig. 6, the call terminal 30 includes a wireless baseband unit 31 and a voice transceiver unit 32.
The voice transceiver unit 32 is connected to the wireless baseband unit 31, and is configured to collect external voice signals, perform a/D conversion, transmit the signals to the wireless baseband unit 31, and receive the voice signals transmitted by the wireless baseband unit 31, perform D/a conversion, and play the signals.
It should be noted that, in the embodiment of the present application, the voice transceiver unit 32 is not limited, and the voice transceiver unit 32 may be a 3.5mm earphone seat, or may include a combination of a microphone and a speaker.
The wireless baseband unit 31 is configured to establish a wireless connection with the wireless processing unit 20, receive a voice signal from the voice transceiver unit 32 and send the voice signal to the wireless processing unit 20, or receive a voice signal from the wireless processing unit 20 and send the voice signal to the voice transceiver unit 32.
The wireless baseband unit 31 is further configured to demodulate or decode the voice signal sent by the wireless processing unit 20 and send the demodulated or decoded voice signal to the voice transceiver unit 32, and modulate or encode the voice signal sent by the voice transceiver unit 32 and send the modulated or encoded voice signal to the wireless processing unit 20; wherein the wireless baseband unit 31 supports DECT technology or WIFI technology.
In an embodiment, when the call terminal 30 performs a multiparty call with other call terminals 30, the wireless baseband unit 31 is further configured to receive a mixed signal from the wireless processing unit 20, demodulate or decode the mixed signal, and send the demodulated or decoded mixed signal to the voice transceiver unit 32, where the voice transceiver unit 32 performs D/a conversion and then plays the mixed signal.
Referring to fig. 7, a flowchart of a forwarding method according to an exemplary embodiment of the present application is shown, where the method is applied to the above-mentioned call system, and the method is executed by the main controller, and includes:
step S101, receiving voice signals transmitted by each wireless processing unit; wherein, each wireless processing unit is in local area networks of different frequency bands; the main controller is connected with the wireless processing unit through an internet protocol.
Step S102, the voice signal sent by one of the wireless processing units is forwarded to the other wireless processing units, so that the wireless processing units process the forwarded voice signal and then send the processed voice signal.
It can be seen that in the embodiment of the present application, the main controller implements intercommunication between the wireless processing units in different frequency bands, thereby implementing capacity expansion of the call terminal.
Optionally, the method further comprises:
generating a sound mixing instruction corresponding to the call terminal corresponding to each wireless processing unit according to all the received voice signals, and sending the sound mixing instruction to the corresponding wireless processing unit; the voice mixing instruction is used for triggering the wireless processing unit to perform voice mixing processing on voice signals which are not the call terminal according to the voice mixing instruction and all received voice signals so as to generate a voice mixing signal sent to the call terminal.
It can be seen that the main controller in the embodiment of the present application generates a mixing instruction corresponding to each call terminal based on all the voice signals, so that one of the call terminals in the same session can hear the voices of the other call terminals, thereby implementing a multiparty call process.
While this specification contains many specific implementation details, these should not be construed as limitations on the scope of any invention or of what may be claimed, but rather as descriptions of features of specific embodiments of particular inventions. Certain features that are described in this specification in the context of separate embodiments can also be implemented in combination in a single embodiment. On the other hand, the various features described in the individual embodiments may also be implemented separately in the various embodiments or in any suitable subcombination. Furthermore, although features may be acting in certain combinations and even initially claimed as such, one or more features from a claimed combination can in some cases be excised from the combination, and the claimed combination may be directed to a subcombination or variation of a subcombination.
Similarly, although operations are depicted in the drawings in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In some cases, multitasking and parallel processing may be advantageous. Moreover, the separation of various system modules and components in the embodiments described above should not be understood as requiring such separation in all embodiments, and it should be understood that the described program components and systems can generally be integrated together in a single software product or packaged into multiple software products.
Thus, particular embodiments of the subject matter have been described. Other embodiments are within the scope of the following claims. In some cases, the actions recited in the claims can be performed in a different order and still achieve desirable results. Furthermore, the processes depicted in the accompanying drawings are not necessarily required to be in the particular order shown, or sequential order, to achieve desirable results. In some implementations, multitasking and parallel processing may be advantageous.
The foregoing description of the preferred embodiments of the present invention is not intended to limit the invention to the precise form disclosed, and any modifications, equivalents, improvements and alternatives falling within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A call system comprising a main controller and at least one wireless processing unit; local area networks with different frequency bands for each wireless processing unit;
the main controller is connected with the wireless processing unit through an internet protocol;
the wireless processing unit is used for communicating with at least one call terminal, receiving an access request of joining a session sent by the call terminal and forwarding the access request to the main controller, wherein the access request comprises an ID for identifying the call terminal;
the main controller is used for recording the ID of the call terminal in the access request, generating an access response and returning the access response to the wireless processing unit;
the wireless processing unit is further used for returning the access response to the call terminal, processing a voice signal of the call terminal and sending the voice signal to the main controller;
the main controller is also used for receiving the voice signals sent by the wireless processing units and forwarding the voice signals sent by one of the wireless processing units to the other wireless processing units; generating a sound mixing instruction corresponding to each call terminal according to all received voice signals, and sending the sound mixing instruction to a corresponding wireless processing unit;
the wireless processing unit is further configured to perform audio mixing processing on the audio signals of the non-call terminal according to the audio mixing instruction and all the received audio signals, and send the generated audio mixing signals to the call terminal.
2. A call system according to claim 1, wherein the master controller and each wireless processing unit form a star topology network via a portal, and/or a daisy-chained network.
3. The telephony system of claim 1, further comprising at least one telephony terminal;
the communication terminal is used for collecting voice signals and sending the voice signals to the wireless processing unit, and receiving and playing the mixed sound signals sent by the wireless processing unit.
4. A telephony system as claimed in claim 3, in which the wireless processing unit communicates with the telephony terminals on the basis of WIFI technology or DECT technology.
5. The telephony system of claim 1, wherein the wireless processing unit is an active antenna unit.
6. The main controller is characterized by comprising a processing module and at least one network port;
the processing module is connected with the network port;
the network port is used for being connected with at least one wireless processing unit, receiving an access request which is forwarded by each wireless processing unit and added into a session, wherein the access request comprises an ID (identity) for identifying a call terminal;
the processing module is used for recording the ID of the call terminal in the access request and generating an access response;
the network port is further used for returning the access response to the corresponding wireless processing unit; receiving voice signals sent by each wireless processing unit; wherein, each wireless processing unit is in local area networks of different frequency bands;
the processing module is further used for determining voice signals to be sent by each network port based on all received voice signals;
the network port is further configured to forward the voice signal sent by one of the wireless processing units to the other wireless processing units based on the voice signal to be sent;
the processing module is also used for generating a sound mixing instruction corresponding to the call terminal corresponding to each wireless processing unit according to all the received voice signals;
the network port is further configured to send the audio mixing instruction to a corresponding wireless processing unit.
7. The wireless processing unit is characterized by comprising a wireless baseband module, a voice processing module and at least one network port;
the voice processing module is respectively connected with the wireless baseband module and the network port;
the wireless baseband module is used for communicating with at least one call terminal, receiving an access request sent by the call terminal and joining a session, wherein the access request comprises an ID for identifying the call terminal;
the network port is used for being connected with a main controller and forwarding the access request to the main controller; receiving an access response returned by the main controller;
the wireless baseband module is also used for returning the access response to the call terminal, receiving a voice signal sent by the call terminal and sending the voice signal forwarded by the main controller to the call terminal;
the voice processing module is used for processing the voice signal of the call terminal; and processing the voice signal forwarded by the main controller;
the network port is also used for sending the voice signal of the call terminal to the main controller and receiving the voice signals and the audio mixing instructions of other wireless processing units forwarded by the main controller;
the voice processing module is also used for carrying out voice mixing processing on the voice signals of the non-communication terminal according to the voice mixing instruction and all received voice signals to obtain a voice mixing signal;
the network port is further configured to send the audio mixing signal to the call terminal.
8. A forwarding method applied to the call system according to any one of claims 1 to 5, said method being performed by a master controller and comprising the steps of:
receiving an access request of joining a session forwarded by each wireless processing unit, wherein the access request comprises an ID for identifying a call terminal;
recording the ID of the call terminal in the access request, generating an access response and returning the access response to the corresponding wireless communication unit;
receiving voice signals transmitted by each wireless processing unit; wherein, each wireless processing unit is in local area networks of different frequency bands; the main controller is connected with the wireless processing unit through an internet protocol; forwarding the voice signal sent by one of the wireless processing units to the other wireless processing units;
generating a sound mixing instruction corresponding to each call terminal according to all received voice signals, and sending the sound mixing instruction to a corresponding wireless processing unit, so that the wireless processing unit carries out sound mixing processing on voice signals which are not the call terminals according to the sound mixing instruction and all received voice signals, and sends the generated sound mixing signals to the call terminals.
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