WO2014187061A1 - 一种远程会议的实现方法及装置 - Google Patents

一种远程会议的实现方法及装置 Download PDF

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Publication number
WO2014187061A1
WO2014187061A1 PCT/CN2013/084845 CN2013084845W WO2014187061A1 WO 2014187061 A1 WO2014187061 A1 WO 2014187061A1 CN 2013084845 W CN2013084845 W CN 2013084845W WO 2014187061 A1 WO2014187061 A1 WO 2014187061A1
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WIPO (PCT)
Prior art keywords
mobile terminal
audio
conference
video signals
video
Prior art date
Application number
PCT/CN2013/084845
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English (en)
French (fr)
Inventor
刘智辉
邬鑫锋
Original Assignee
华为技术有限公司
Priority date (The priority date 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 date listed.)
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Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=49137676&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2014187061(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP13885162.1A priority Critical patent/EP2991325A4/en
Publication of WO2014187061A1 publication Critical patent/WO2014187061A1/zh
Priority to US14/948,244 priority patent/US20160080433A1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066Session management
    • H04L65/1069Session establishment or de-establishment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/72Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
    • H04M1/72409User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories
    • H04M1/72412User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories using two-way short-range wireless interfaces
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/42Systems providing special services or facilities to subscribers
    • H04M3/56Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
    • H04M3/568Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities audio processing specific to telephonic conferencing, e.g. spatial distribution, mixing of participants
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2250/00Details of telephonic subscriber devices
    • H04M2250/02Details of telephonic subscriber devices including a Bluetooth interface
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2250/00Details of telephonic subscriber devices
    • H04M2250/62Details of telephonic subscriber devices user interface aspects of conference calls

Definitions

  • a remote conference is a group of individuals or groups with different geographical locations. Through transmission lines and multimedia devices, voice, video and file data are transmitted to each other for instant and interactive communication. It can be a voice conference or a video conference.
  • 1A is a schematic diagram of realizing remote conference in the prior art. Each conference site has one conference terminal, the conference terminal A in the field one is the moderator, A has three microphones, and the speaker and keyboard, and other conference terminals B and C. And D participate in the remote conference through the PSTN (Public Exchange Switched Telephone Network).
  • FIG. 1B is a schematic structural diagram of the remote conference system in the prior art.
  • the remote conference system mainly includes an MCU (Mul t i-Point). Control Uni t, multipoint control unit) and conference terminal.
  • the remote conference has the advantage of real-time performance, but it also has the following defects: 1.
  • a special telephone device is needed to achieve a good long-distance pickup. Sound and playback effects, however, this special telephone device has good pickup and playback effects within a certain distance range. Therefore, if the distance between the participant and the special telephone device exceeds the preset range, it will not be good.
  • the pickup effect even, can't participate in teleconferencing.
  • many conference terminals used in remote conferences use the array microphone to expand the range of pickup.
  • the general pickup range is 3 meters to 5 meters. If a participant is about 10 meters away from the conference terminal, then pick up. The sound effect is still poor.
  • the remote participants may not be able to hear clearly. If a participant is about 100 meters away from the conference terminal, the remote participants cannot hear it at all, and they cannot participate in the remote conference.
  • the embodiments of the present invention provide a method for implementing a remote conference, which is used to solve the problem that the conference site where the conference terminal is located in the prior art has a small sound collection range and is less timely when accessing a new conference participant.
  • a method for implementing a remote conference including:
  • the conference terminal After the remote conference is successfully established, the conference terminal detects the first mobile terminal in the current conference site; the conference terminal sends a first dialing indication to the detected first mobile terminal by using the short-range wireless communication channel, where the first dialing Instructing to carry the identifier of the second mobile terminal, so that the first mobile terminal establishes an audio and video link between the second mobile terminal corresponding to the identifier according to the identifier of the second mobile terminal;
  • the conference terminal encodes the received audio and video signals of other sites and/or the acquired audio and video signals in the current conference site, and sends the audio and video signals to the first mobile terminal based on the audio and video links.
  • a mobile terminal and receiving an audio and video signal sent by the second mobile terminal by using the first mobile terminal, and decoding and playing.
  • the detecting the first mobile terminal in the current site includes: detecting the first mobile terminal in the current site by using short-range wireless communication.
  • the conference terminal sends the first dial to the detected first mobile terminal by using a short-range wireless communication channel
  • the indication specifically includes: the conference terminal receives a second dialing indication sent by the third mobile terminal, where the second dialing indication carries the identifier of the second mobile terminal, and the first detected by the short-range wireless communication channel
  • the mobile terminal sends a first dialing indication carrying the identifier of the second mobile terminal.
  • establishing a remote conference specifically includes: when receiving the setup indication sent by the third mobile terminal, performing network dialing through the public switched telephone network PSTN, and sequentially inputting the pending The identification of other conference terminals entering the remote conference completes the establishment of the remote conference.
  • the first mobile terminal is established according to the identifier of the second mobile terminal
  • the audio and video link between the second mobile terminal corresponding to the identifier includes: causing the first mobile terminal to send a signal carrying the identifier of the second mobile terminal to the first base station, and Transmitting, by the second base station, the signal carrying the identifier of the second mobile terminal to a second mobile terminal corresponding to the identifier, establishing, by the second base station, an audio and video link with the second mobile terminal .
  • the conference terminal receives the audio and video signals of other sites and/or obtains The audio and video signals in the current site are encoded, and the method includes: the conference terminal performs audio and video pre-processing on the obtained audio and video signals in the current site, and the audio and video pre-processing includes: AGC (Automatic Ga in Control) , automatic gain control), AEC (Acoustic Echo Canceller), ANS (Automatic ic No Ise Suppres s ion, adaptive noise suppression), EQ (Equa li ser, dynamic equalization), and go One or any combination of reverberations; the conference terminal encodes the audio and video signals subjected to audio and video pre-processing and the received audio and video signals in other venues.
  • AGC Automatic Ga in Control
  • AEC Acoustic Echo Canceller
  • ANS Automatic ic No Ise Suppres s ion, adaptive noise suppression
  • EQ Equa li ser, dynamic equalization
  • the audio and video sent by the second mobile terminal by using the first mobile terminal is received After the signal is decoded and played, the method specifically includes: receiving an audio and video signal sent by the second mobile terminal by using the first mobile terminal, and performing decoding, decoding, and processing on the received audio and video signal, and then decoding The processed audio and video signals are played, wherein the decoded processing process includes: one or any combination of packet loss compensation, line echo cancellation LEC, and mixing.
  • an apparatus for implementing a remote conference including:
  • a detecting unit configured to: after the remote conference is successfully established, detect the first mobile terminal in the current site; the link establishing unit is configured to send, by using the short-range wireless communication channel, the first mobile terminal that is detected by the detecting unit a dialing indication, where the first dialing indication carries an identifier of the second mobile terminal, so that the first mobile terminal establishes, between the second mobile terminal corresponding to the identifier, according to the identifier of the second mobile terminal Audio and video link;
  • a codec unit configured to encode the received audio and video signals of other sites and/or the acquired audio and video signals in the current site, and pass the first through the audio and video links established by the link establishing unit. Sending to the second mobile terminal by a mobile terminal, and receiving an audio and video signal sent by the second mobile terminal by using the first mobile terminal, and decoding and playing.
  • the detecting unit is specifically configured to: detect, by using a short-range wireless communication manner, a first mobile terminal in a current conference site.
  • the link establishing unit is specifically configured to: receive a second dialing indication sent by the third mobile terminal, The second dialing indication carries the identifier of the second mobile terminal, and sends a first dialing indication carrying the identifier of the second mobile terminal to the first mobile terminal detected by the detecting unit by using the short-range wireless communication channel .
  • the detecting unit is specifically configured to: when receiving the setup indication sent by the third mobile terminal, perform network dialing through the public switched telephone network PSTN, and sequentially input the Access the identification of other conference terminals of the remote conference to complete the establishment of the remote conference.
  • the link establishing unit is specifically configured to: enable the first mobile terminal to carry Sending a signal of the identifier of the second mobile terminal to the first base station, and causing the first base station to send, by using the second base station, the signal carrying the identifier of the second mobile terminal to correspond to the identifier
  • the second mobile terminal establishes an audio and video link with the second mobile terminal.
  • the codec unit is specifically configured to: obtain the obtained audio and video in the current site
  • the signal is subjected to audio and video pre-processing, and the audio and video pre-processing includes: one or any combination of automatic gain control AGC, adaptive echo cancellation AEC, adaptive noise suppression ANS, dynamic equalization EQ, and de-reverberation;
  • the audio and video signals processed before the audio and video are mixed with the received audio and video signals in other venues and then encoded.
  • the codec unit is specifically configured to: receive the second mobile terminal by using the And the audio and video signals sent by the first mobile terminal, and the received audio and video signals are decoded and decoded, and then the decoded audio and video signals are played, wherein the decoded processing process includes: One or any combination of packet compensation, line echo cancellation LEC, and mixing.
  • a conference terminal including:
  • a signal processor configured to: after the remote conference is successfully established, detect a first mobile terminal in the current site, and send a first dialing indication to the first mobile terminal detected by the detecting unit by using a short-range wireless communication channel, where The first dialing indication carries the identifier of the second mobile terminal, so that the first mobile terminal establishes an audio and video link between the second mobile terminal corresponding to the identifier according to the identifier of the second mobile terminal. And encoding the received audio and video signals of the other site and/or the acquired audio and video signals in the current site, and receiving the second mobile terminal by using the first mobile Audio and video signals sent by the terminal and decoded;
  • a signal transceiver configured to send the audio and video signals of the other conference sites and/or the acquired audio and video signals in the current conference site, based on the audio and video links established by the signal processor, by using the first mobile terminal And the second mobile terminal, and the decoded second mobile terminal play the audio and video signals sent by the first mobile terminal.
  • the signal processor is specifically configured to: detect, by using a short-range wireless communication manner, a first mobile terminal in a current conference site.
  • the signal processor is specifically configured to: receive a second dialing indication sent by the third mobile terminal, where The second dialing indication carries the identifier of the second mobile terminal, and sends a first dialing indication carrying the identifier of the second mobile terminal to the detected first mobile terminal by using a short-range wireless communication channel.
  • the signal processor is specifically configured to: when receiving the setup indication sent by the third mobile terminal, perform network dialing through the public switched telephone network PSTN, and input sequentially The identification of other conference terminals to be connected to the remote conference completes the establishment of the remote conference.
  • the signal processor is specifically configured to: enable the first mobile terminal to carry Sending, by the second base station, a signal carrying the identifier of the second mobile terminal to the first base station, and sending, by the second base station, the signal carrying the identifier of the second mobile terminal to the identifier corresponding to the identifier a second mobile terminal establishing an audio and video link with the second mobile terminal.
  • the signal processor is specifically configured to: acquire the obtained audio and video in the current site
  • the signal is subjected to audio and video pre-processing, and the audio and video pre-processing includes: one or any combination of automatic gain control AGC, adaptive echo cancellation AEC, adaptive noise suppression ANS, dynamic equalization EQ, and de-reverberation;
  • the audio and video signals processed before the audio and video are mixed with the received audio and video signals in other venues and then encoded.
  • the signal processor is configured to: receive the second mobile terminal by using the first And the audio and video signals sent by the mobile terminal, and the received audio and video signals are decoded and decoded, and then the decoded audio and video signals are played, wherein the decoded processing process includes: packet loss compensation , line echo cancels one or any combination of LEC, and mix.
  • the decoded processing process includes: packet loss compensation , line echo cancels one or any combination of LEC, and mix.
  • the mobile terminal sends a first dialing indication, where the first dialing indication carries the identifier of the second mobile terminal, so that the first mobile terminal establishes audio and video between the second mobile terminal corresponding to the identifier according to the identifier of the second mobile terminal.
  • the conference terminal encodes the received audio and video signals of other sites and/or the acquired audio and video signals in the current conference site, and transmits the audio and video signals to the second mobile terminal through the first mobile terminal based on the audio and video links. And receiving the audio and video signals sent by the second mobile terminal through the first mobile terminal, and decoding and playing, so that the conference terminal controls the conference even if the participant to be accessed does not have a good range of sound pickup effects.
  • the first mobile terminal in the conference site is connected with the second mobile terminal to be accessed, and then passes through the first
  • the mobile terminal transmits the received audio and video signals of the other sites and/or the acquired audio and video signals of the local site to the second mobile terminal, thereby effectively improving the sound collection range, and at the same time, when accessing the second mobile terminal
  • the second mobile terminal can be connected to the remote conference through the first mobile terminal in the conference site, and the established remote conference connection does not need to be disconnected, thereby avoiding disconnecting the connected remote conference, thereby effectively improving
  • the timeliness of accessing new participants is achieved, and other conference venues do not have conference terminals. They can also access remote conferences through the second mobile terminal, which also improves the timeliness of accessing new participants.
  • FIG. 1B is a schematic structural diagram of a remote conference system in the prior art
  • FIG. 2A is a schematic diagram of implementing a remote conference according to an embodiment of the present invention.
  • 2B is a first detailed flowchart of implementing a remote conference process according to an embodiment of the present invention
  • 2C is a schematic diagram of an audio transmission stream when a conference terminal sends an audio and video signal according to an embodiment of the present invention
  • FIG. 3A is a second detailed flowchart of a remote conference process performed by a conference terminal as a moderator according to an embodiment of the present invention
  • FIG. 3B is a schematic diagram of a conference terminal as a moderator for implementing a remote conference according to an embodiment of the present invention
  • FIG. 3C is a schematic diagram of an audio transmission stream when a conference terminal sends a voice signal according to an embodiment of the present invention
  • FIG. 3D is a conference terminal according to an embodiment of the present invention
  • FIG. 4A is a schematic diagram of a second accompanying flowchart of a third mobile terminal as a moderator for implementing a remote conference process according to an embodiment of the present invention
  • FIG. 4B is a schematic diagram of a third mobile terminal as a host to implement a remote conference according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a device implemented in an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of a function of a conference terminal according to an embodiment of the present invention.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT In order to solve the problem that the sound collection range is small and the time of accessing a new participant is poor in time in the prior art, in the embodiment of the present invention, a method for implementing a remote conference is proposed, and the conference terminal is established in a remote conference. After the success, the first mobile terminal in the current site is detected, and then the conference terminal sends a first dialing indication to the detected first mobile terminal by using the short-range wireless communication channel, where the first dialing indication carries the second mobile terminal.
  • the first mobile terminal is configured to establish an audio and video link between the second mobile terminal corresponding to the identifier according to the identifier of the second mobile terminal, and finally, the audio and video signals and/or acquisitions of the other conference sites that the conference terminal will receive.
  • the audio and video signals in the current conference site are encoded, and are sent to the second mobile terminal by using the first mobile terminal based on the audio and video link, and receiving the audio and video signals sent by the second mobile terminal by using the first mobile terminal, and decoding After playing, this way, even if the participant to be accessed is not in the van with good pickup effect
  • the conference terminal controls the first mobile terminal in the conference site to connect with the second mobile terminal to be accessed, and then the audio and video signals and/or the obtained conferences of the other conference sites that are received by the first mobile terminal.
  • the audio and video signals of the site are sent to the second mobile terminal, thereby effectively improving the range of the sound pickup.
  • the second mobile terminal is connected to the remote conference through the first mobile terminal in the site. That is, there is no need to disconnect the established remote conference connection, thus avoiding disconnecting the connected remote conference, thereby effectively improving the timeliness of accessing new participants, and other conference venues do not have conference terminals. It is also possible to access the remote conference through the second mobile terminal, which also improves the timeliness of accessing new participants.
  • Bluetooth technology is a technology used for short-distance communication.
  • An important application model of Bluetooth is the CTP (Cordisco Telephony Prof.) gateway.
  • the CTP gateway is the abbreviation of Bluetooth Telephony Gateway.
  • the CTP gateway allows access to up to seven communication terminals with Bluetooth wireless communication capabilities, such as smart cellular phones, PDAs, and more.
  • the communication terminal joining the gateway is called a Bluetooth extension, and the gateway assigns an extension number to each Bluetooth extension.
  • Conference terminal can pass through the network Turn off the connected Bluetooth extension to establish a remote communication connection.
  • the Bluetooth extension can also establish data links with other Bluetooth extensions through the gateway.
  • Bluetooth technology also has an important application HFP (Hand-Free Prof i le, hands-free specification) hands-free configuration file, allowing Bluetooth devices to control the phone, such as answering, hanging, rejecting, voice dialing and so on.
  • HFP Heand-Free Prof i le, hands-free specification
  • FIG. 2A is a schematic diagram of implementing a remote conference according to an embodiment of the present invention
  • FIG. 2B is a detailed flowchart of implementing a remote conference according to an embodiment of the present invention
  • FIG. 2C is an audio diagram of a conference terminal transmitting an audio and video signal according to an embodiment of the present invention; Schematic diagram of the sending stream)
  • Step 200 After the remote conference is successfully established, the conference terminal detects the first mobile terminal in the current conference site.
  • the remote conference may be established by dialing through the PSTN network according to the user indication, or may be received in the conference site 1 as shown in FIG. 2A.
  • the third mobile terminal establishes a remote conference by dialing through the PSTN network according to the dialing indication sent by the user.
  • the conference terminal establishes a remote conference according to the user indication or the dialing instruction of the third mobile terminal, wherein when the remote conference is established, the network dialing is performed through the PSTN, and then Enter the identifiers of other conference terminals to be connected to the remote conference to complete the establishment of the remote conference.
  • the conference terminal in the site 1 detects any one of the first mobile terminals in the conference site.
  • the short-range wireless communication method is used to detect the location in the conference site.
  • the first mobile terminal, or the third mobile terminal that receives the conference site 1 as shown in FIG. 2A When the detection indication is sent, the first mobile terminal in the site is detected by short-range wireless communication, wherein the short-range wireless communication may be a Bluetooth-based communication technology, a WIFI-based communication technology, or a Zig-based communication Bee's communication technology or communication technology based on ultra-wideband.
  • the first mobile terminal in the first site detected by the short-range wireless communication method mentioned above refers to that if the short-range wireless communication technology is a Bluetooth-based communication technology, the detected first mobile terminal refers to turning on the Bluetooth.
  • the first mobile terminal of the function if the short-range wireless communication technology is a WIFI-based communication technology, the detected first mobile terminal refers to the first mobile terminal that enables the WIFI function; if the short-range wireless communication technology is based on Zi g Bee
  • the first mobile terminal detected by the communication technology refers to the first mobile terminal that turns on the Zig Bee function.
  • the conference terminal in the site 1 shown in FIG. 2A detects the first mobile terminal in the site, the first mobile terminal is assigned a slave address, and a connection is established with the first mobile terminal.
  • Step 210 The conference terminal sends a first dialing indication to the detected first mobile terminal by using the short-range wireless communication channel, where the first dialing indication carries the identifier of the second mobile terminal, so that the first mobile terminal is configured according to the second mobile terminal.
  • the identifier establishes an audio and video link between the second mobile terminal corresponding to the identifier.
  • the conference terminal in the site 1 shown in FIG. 2A when the conference terminal in the site 1 shown in FIG. 2A sends the first dialing indication to the detected first mobile terminal through the short-range wireless communication channel, the conference terminal may input according to the user indication as shown in FIG. 2A.
  • the identifier of the second mobile terminal in the site 1 or the site 2 is sent, the first mobile terminal that sends the second mobile terminal identifier is sent to the detected first mobile terminal, and the site shown in FIG. 2A is received.
  • the third mobile terminal And transmitting, by the third mobile terminal, the second dialing indication that carries the identifier of the second mobile terminal, to the detected first mobile terminal, the first dialing indication that carries the identifier of the second mobile terminal, where, if the conference terminal Receiving the second dialing indication that is sent by the third mobile terminal in the site and carrying the identifier of the second mobile terminal, the user inputs the identifier of the second mobile terminal in the third mobile terminal.
  • the conference terminal in the site 1 of FIG. 2A when inputting the identifier of the second mobile terminal in the site 1 or the site 2 as shown in FIG. 2A, the first to the detected site 1
  • the mobile terminal sends the first dialing indication carrying the identifier of the second mobile terminal, or receives the second dialing indication sent by the third mobile terminal in the site 1 of FIG.
  • the second mobile terminal corresponding to the identifier sends a setup audio and video connection request, and after the second mobile terminal receives the request, the first mobile terminal completes establishment of an audio and video link between the second mobile terminal corresponding to the identifier
  • the first mobile terminal and the second mobile terminal are connected by a public wireless network, for example, CDMA (Code Division Multiple Access), TD-SCDMA (Time Division Synchronized Code Division Multiple Access, Time Division Synchronous CDMA) ), GSM (Global System for Mobile Communications, etc.).
  • the first mobile terminal establishes an audio and video link between the second mobile terminal corresponding to the identifier according to the identifier of the second mobile terminal, and preferably, the first mobile terminal carries The signal of the identifier of the second mobile terminal is sent to the first base station, and then the first base station sends a signal carrying the identifier of the second mobile terminal to the second mobile terminal corresponding to the identifier by using the second base station, thereby establishing and 2. Audio and video links between mobile terminals.
  • the second mobile terminal After receiving the request of the first mobile terminal, the second mobile terminal sends feedback connection information to the first mobile terminal, and after receiving the feedback connection information sent by the first mobile terminal, the conference terminal completes the second mobile terminal.
  • SCO Synchronous Connection Oritened
  • Step 220 The conference terminal encodes the received audio and video signals of other sites and/or the acquired audio and video signals in the current site, and sends the data to the second mobile terminal through the first mobile terminal based on the audio and video link, and Receiving audio and video signals sent by the second mobile terminal through the first mobile terminal, and decoding and playing.
  • the conference terminal in the site 1 of FIG. 2A has various implementation manners for encoding the received audio and video signals of the third site and/or the acquired audio and video signals in the site 1.
  • the following manner can be adopted:
  • the obtained audio and video signals in the site 1 are subjected to audio and video pre-processing, and the audio and video pre-processing includes: one or any combination of AGC, AEC, ANS, EQ, dereverberation;
  • the video signal is mixed with the received audio and video signal of the third site, and then encoded, where the audio and video signals after the mixing are encoded, the encoding is performed twice, and then the encoded audio is twice.
  • the video signal is sent to the first mobile terminal in the conference site. After receiving the encoded audio and video signal twice, the first mobile terminal is decoded and then sent to the conference site 1 or the conference site 2 based on the audio and video link.
  • the second mobile terminal if the second mobile terminal is located at the conference site, the distance between the second mobile terminal and the conference terminal is relatively long, and the pickup effect is poor.
  • the above operations are audio and video signals and/or acquired sessions of the conference site 3 that the conference terminal will receive.
  • the process of transmitting the audio and video signals in the field to the second mobile terminal is similar.
  • the conference terminal in the site 1 can also receive the second mobile terminal in the site 2 through the first mobile terminal in the site 1. And transmitting the audio and video signals, and decoding the audio and video signals in the received site 2, wherein the second mobile terminal receives the audio and video signals from the second mobile terminal and decodes the audio and video signals in the second mobile terminal.
  • the playback is implemented in various manners, for example, receiving, by the public wireless network, the audio and video signals of the second mobile terminal sent by the first mobile terminal, and after receiving the decoding, decoding and decoding, and then The audio and video signals in the second processed conference site are played out through the speaker, and transmitted to the third conference site through the PSTN to complete the reception of the audio and video signals sent by the second mobile terminal, wherein the post-decoding processing includes: packet loss compensation , LEC , one or any combination of mixes.
  • the conference terminal in the conference site 1 in FIG. 2A newly accesses multiple second mobile terminals, where the second mobile The terminal can be located in the site 2 or in the other site except the site 1 and the site 2.
  • the conference terminal can access multiple first terminals through one of the first mobile terminals.
  • the mobile terminal can access multiple second mobile terminals through multiple first mobile terminals in the first site.
  • the two methods can be implemented in steps 200 to 230.
  • the conference terminal accesses at least When two second mobile terminals access all the second mobile terminals through one first mobile terminal, assign the slave address to the detected first mobile terminal, and then send all the carried to the detected first mobile terminal.
  • a first dialing indication of the identifier of the second mobile terminal where the first mobile terminal sequentially follows the identifier according to each identifier carried in the first dialing indication And establishing an audio and video link between the corresponding second mobile terminals; if each of the second mobile terminals is respectively accessed by a different first mobile terminal, assigning each mobile terminal a different slave address, and then, to each a first mobile terminal sends a first dialing indication carrying an identifier of a second mobile terminal, and then each first mobile terminal corresponds to the identifier according to the identifier of the second mobile terminal carried in the received first dialing indication.
  • the second mobile terminal establishes an audio and video link.
  • the conference terminal can receive the audio and video signals of the second conference site sent by the at least two second mobile terminals by using the first mobile terminal, and receive the received The audio and video signals in the second site are decoded and then subjected to a mixing process, and then played to complete the reception.
  • the received sound signal is coded and then sent to the conference terminal.
  • the conference terminal in FIG. 2A receives the audio and video signals sent by the at least two second mobile terminals through the first movement in the site 1
  • the first terminal may receive the first mobile terminal in the site, or Pass A plurality of first mobile terminals in the venue 1 receive.
  • the preferred execution subject mentioned in the above steps 200 to 230 is a conference terminal.
  • the execution subject of the above steps 200 to 230 has other details, which will not be described in detail herein.
  • the network dials through the PSTN to complete the establishment of the remote conference, and receives the conference.
  • the detection indication sent by the third mobile terminal is detected, the first mobile terminal in the site is detected by the short-range wireless communication channel, and the second mobile terminal that receives the identifier of the second mobile terminal that is sent by the third mobile terminal in the site is received.
  • the dialing indication is sent, the first mobile terminal that carries the identifier of the second mobile terminal is sent to the first mobile terminal, and the third mobile terminal in the site is the moderator. Otherwise, the conference terminal is the moderator.
  • the first mobile terminal of the conference site is connected to the second mobile terminal in the local site or other site that is far away from the conference terminal, and then received by the first mobile terminal in the site.
  • the audio and video signals of the third conference site and/or the acquired audio and video signals in the conference site are transmitted to the second mobile terminal in the conference site or the second conference site, or the second mobile terminal located in the second conference site is received.
  • the audio and video signal of the site where the second mobile terminal is located that is, accessing the second mobile terminal, wherein the first mobile terminal functions as a "wireless PSTN", that is, it only plays a role of relaying, and receives the conference terminal.
  • the audio and video signals of the third site and/or the acquired audio and video signals in the site are sent to the second mobile terminal, or the audio and video signals of the second site at the second site where the second mobile terminal is located are sent to the conference. terminal.
  • the conference terminal can be received.
  • the audio and video signals of the first site therefore, the sound collection range is expanded, and when accessing the second mobile terminal, there is no need to disconnect the connected remote conference, that is, the connection between the conference terminal A and the conference terminal B, 2.
  • the mobile terminal can access in time. At the same time, in the case that the second conference site does not have the conference terminal, the conference participant can also access the remote conference through the second mobile terminal, thereby improving the timeliness of accessing new participants. .
  • FIG. 3A (Refer to Figure 3B, A is the first conference terminal, B is the first a mobile terminal, C is the second mobile terminal, and D is the second conference terminal, and A and B are in the first meeting. Field, C is in the second venue, D is in the third venue, and A is the host)
  • Step 300 A establish a remote conference by dialing through the PSTN.
  • Step 310 A detects the mobile terminal that opens the Bluetooth function in the first conference site by using Bluetooth, and uses one of the detected mobile terminals that are enabled with the Bluetooth function as B.
  • Step 320 A assigns the slave address to B, and establishes a connection with the detected B through Bluetooth.
  • Step 330 When the phone number of the C is input according to the user instruction, the first dialing instruction is sent to the B through the Bluetooth, and the B is dialed according to the identifier of the C carried in the first dialing instruction, and the audio and video between the B and the C is established. link.
  • B dials to C, and B and C establish a voice and video link, where B and C establish a call and video connection through TD-SCDMA.
  • Step 340 After receiving the feedback information of C sent by B, A establishes an SCO audio and video link between A and B.
  • Step 350 A performs processing such as AGC, AEC, ANS, EQ, and de-reverberation on the obtained audio and video signals in the first site.
  • Step 360 A mixes the processed audio and video signals with the audio and video signals sent by the third site received through the PSTN, performs encoding twice, and sends them to B through Bluetooth, and decodes them in B. After processing, the audio and video signals are sent to C through the TD-SCDMA network, and the audio and video signals of the first site are transmitted.
  • FIG. 3C is a schematic diagram of the audio transmission stream when A transmits the audio and video signals.
  • the audio and video signals of the second site can also be transmitted.
  • To A the audio and video signals of the second site are sent to A through B, and then A is decoded and then packet loss compensation is performed.
  • LEC after mixing, is played through the speaker in the first venue, and transmitted to the third venue through the PSTN.
  • FIG. 3D is a schematic diagram of the audio receiving stream when the A receives the audio and video signals.
  • the above steps 300 to 360 are the process of transmitting the audio and video signals of the first site to the C, that is, the process of adding a participant.
  • the first mobile terminal of the first site may access all the second mobile terminals, or the plurality of first mobile terminals of the first site may access multiple The second mobile terminal.
  • the conference terminal A accesses three second mobile terminals (the second mobile terminal 1, the second mobile terminal 2, and the second mobile terminal 3) through one first mobile terminal
  • A determines three open by Bluetooth.
  • One of the mobile terminals of the Bluetooth function acts as the first mobile terminal (the first mobile terminal 1), establishes a connection, and assigns a slave address to the first mobile terminal 1, and transmits A to the second mobile terminal 1 through the first mobile terminal 1.
  • the Bluetooth-enabled mobile terminal establishes a connection, and respectively assigns the corresponding first slave addresses to the three first mobile terminals:
  • Corresponding to the first mobile terminal 1 is the slave address 1, the slave address 2 corresponding to the first mobile terminal 2, the slave address 3 corresponding to the first mobile terminal 3, and the first move
  • the terminal 1 transmits the audio and video signals of the other sites received by the A and/or the acquired audio and video signals in the site to the second mobile terminal 1, that is, accesses the second mobile terminal 1;
  • the mobile terminal 2 transmits the audio and video signals of the other sites received by the A and/or the acquired audio and video signals in the site, that is, accesses the second mobile terminal 2;
  • Other A venue terminal 3 transmits the received audio and video signals
  • the conference terminal A can also receive the audio and video signals of the site where the second mobile terminal is located. When it is a plurality of second mobile terminals, the conference terminal should mix the audio and video signals of the received multiple second mobile terminals, and then Spread through the speaker. Of course, when the conference terminal A picks up the audio and video signals of the multiple conference sites, the audio and video signals of the multiple conference sites are first mixed, and then sent to the corresponding second mobile terminal through different first mobile terminals to complete the transmission. .
  • FIG. 4A A is the first conference terminal, B is the first mobile terminal, C is the second mobile terminal, D is the third mobile terminal, and E is the second conference terminal.
  • the site where A and B are located is the first site, the site where C is located is the second site, and D is the moderator.
  • the venue is the third venue)
  • Step 400 A and D are connected by WI FI, and the slave address 1 of D is obtained.
  • Step 410 After receiving the setup indication of the D transmission through the WIFI, the A establishes a remote conference by dialing through the PSTN network.
  • Step 420 After receiving the detection indication sent by the D and parsing, the A detects the first mobile terminal in the first conference site that is enabled with the WIFI function by using the WIFI, and uses one of the detected first mobile terminals as the B.
  • Step 430 A assigns the slave address 2 to B to establish a connection with the detected B.
  • Step 440 A receives the second dialing indication sent by the D after the telephone number of the input C, and causes the B to dial the C according to the identifier of the C carried in the first dialing indication to establish an audio and video chain between the B and the C. road.
  • Step 450 After receiving the feedback information of C sent by B, A establishes an SCO audio and video link between A and B.
  • Step 460 The acquired audio and video signals in the first site are processed by AGC, AEC, ANS, EQ, dereverberation, and the like.
  • Step 470 A mixes the processed audio and video signals with the audio and video signals of the third site sent by the E received by the PSTN, performs encoding twice, and sends them to B through WIFI, and correspondingly passes through B. After the decoding process, the audio and video signals are sent to C through the TD-SCDMA network, and the audio and video signals of the first site and the third site are transmitted.
  • the steps 400 to 470 are used to transmit the audio and video signals of the first site and the third site to C.
  • the audio and video signals of the second site can also be transmitted to A, specifically for the second site.
  • the video signal is sent to A through B, and A is decoded and then packet loss compensation is performed.
  • the LEC After the LEC is mixed, it is played through the speaker and transmitted to the third conference site through the PSTN to complete the reception of the audio and video signals of the second conference site.
  • the above steps 400 to 470 are the process of transmitting the audio and video signals of the first site to the C, that is, the process of adding a participant.
  • multiple multiples need to be added.
  • all of the second mobile terminals may be accessed through one first mobile terminal, or multiple second mobile terminals may be accessed through multiple first mobile terminals.
  • the conference terminal A connects to the third mobile terminal through the WIFI.
  • the remote conference is established through the PSTN, and after receiving the detection indication sent by the third mobile terminal, the conference terminal A determines, by using WIFI, three of the WIFI functions are enabled.
  • first mobile The terminal 1 mobile terminal as the first mobile terminal (first mobile The terminal 1) establishes a connection, and assigns the slave address to the first mobile terminal 1, and transmits the audio and video signals of the other conference sites received by the conference terminal A to the second mobile terminal 1 through the first mobile terminal 1 and/or obtains
  • the audio and video signals in the site are connected to the second mobile terminal 1; the audio and video signals of other sites received by the conference terminal A are transmitted to the second mobile terminal 2 through the first mobile terminal 1 and/or acquired.
  • the audio and video signals in the conference site are connected to the second mobile terminal 2; then, the first mobile terminal 1 transmits the audio and video signals of the other conference sites received by the conference terminal A to the second mobile terminal 3 and/or acquired.
  • the audio and video signals in the venue are connected to the second mobile terminal 3.
  • the conference terminal A performs the WIFI and the third mobile terminal.
  • the remote conference is established through the PSTN network dialing, and after the conference terminal A receives the detection indication sent by the third mobile terminal and parses the conference terminal A, the conference terminal A determines three through the Bluetooth.
  • the three mobile terminals that enable the WIFI function are used as the first mobile terminal (the first mobile terminal 1, the first mobile terminal 2, and the first mobile terminal 3) to establish a connection, and respectively assign the corresponding mobile devices to the three mobile terminals.
  • the mobile terminal 1 sends the audio and video signals of the other conference sites received by the conference terminal A to the second mobile terminal 1 and/or the obtained audio and video signals in the conference site.
  • Embodiment 4 of the present invention provides an apparatus for implementing a remote conference. As shown in FIG. 5, the implementation apparatus includes:
  • the detecting unit 500 is configured to detect, after the remote conference is successfully established, the first mobile terminal in the current conference site;
  • the link establishing unit 510 is configured to send, by using the short-range wireless communication channel, the first dialing indication to the first mobile terminal detected by the detecting unit 500, where the first dialing indication carries the identifier of the second mobile terminal, so that the first mobile Establishing, by the terminal, an audio and video link between the second mobile terminal corresponding to the identifier according to the identifier of the second mobile terminal;
  • the codec unit 520 is configured to encode the received audio and video signals of other sites and/or the acquired audio and video signals in the current site, and pass the first mobile terminal based on the audio and video links established by the link establishing unit. Sending to the second mobile terminal, and receiving the audio and video signals sent by the second mobile terminal through the first mobile terminal, and decoding and playing.
  • the detecting unit 500 detects the first mobile terminal in the current conference site by using short-range wireless communication.
  • the link establishing unit 510 is specifically configured to: receive a second dialing indication sent by the third mobile terminal, where the second dialing indication carries the identifier of the second mobile terminal, and is detected by the short-range wireless communication channel to the detecting unit.
  • the first mobile terminal sends a first dialing indication carrying the identity of the second mobile terminal.
  • the detecting unit 500 when the remote conference is established, sends a 0 to the third mobile terminal to establish the network, dials the network through the PSTN, and sequentially inputs the other conference terminals to be accessed by the remote conference. Identification, complete the establishment of a remote conference.
  • the link establishing unit 510 when establishing the audio and video link, causes the first mobile terminal to send a signal carrying the identifier of the second mobile terminal to the first base station, and the first base station passes the second base station. Sending a signal carrying the identifier of the second mobile terminal to the second mobile terminal corresponding to the identifier, establishing an audio-video link with the second mobile terminal.
  • the codec unit 520 is specifically configured to: perform audio and video pre-processing on the obtained audio and video signals in the current site, and the audio and video pre-processing includes: AGC, AEC, ANS, EQ, and one of de-reverberation Or any combination; the audio and video signals after the audio and video pre-processing are mixed with the received audio and video signals in other venues, and then encoded.
  • the codec unit 520 is specifically configured to: receive an audio and video signal sent by the second mobile terminal by using the first mobile terminal, and decode and decode the received audio and video signal, and then perform processing after decoding.
  • the audio and video signals are played, wherein the decoded process includes: one or any combination of packet loss compensation, LEC, and mixing.
  • a fifth embodiment of the present invention provides a conference terminal.
  • the conference terminal includes: a signal processor 600, configured to detect a first mobile terminal in a current conference site after a remote conference is successfully established, and adopt a short distance
  • the wireless communication channel sends a first dialing indication to the first mobile terminal that is detected by the detecting unit, where the first dialing indication carries the identifier of the second mobile terminal, so that the first mobile terminal establishes and identifies according to the identifier of the second mobile terminal.
  • the signal transceiver 610 is configured to send the audio and video signals of the other conference sites and/or the acquired audio and video signals in the current conference site, and the audio and video links established by the signal processor 600 are sent to the first mobile terminal by using the first mobile terminal.
  • the second mobile terminal and the decoded second mobile terminal play the audio and video signals sent by the first mobile terminal.
  • the signal processor 600 is specifically configured to: detect the first mobile terminal in the current conference site by using short-range wireless communication.
  • the signal processor 600 is specifically configured to: receive a second dialing indication sent by the third mobile terminal, where the second dialing indication carries the identifier of the second mobile terminal, and uses the short-range wireless communication channel to detect the first mobile The terminal sends a first dialing indication carrying the identity of the second mobile terminal.
  • the signal processor 600 receives the third mobile terminal when the remote conference is established.
  • the signal processor 600 is specifically configured to: enable the first mobile terminal to send a signal carrying the identifier of the second mobile terminal to the first base station, and enable the first base station to carry the second mobile terminal by using the second base station The identified signal is sent to the second mobile terminal corresponding to the identifier to establish an audio-video link with the second mobile terminal.
  • the signal processor 600 is specifically configured to: perform audio and video pre-processing on the obtained audio and video signals in the current site, and the audio and video pre-processing includes: AGC, AEC, ANS, EQ, and one of dereverberation Or any combination; the audio and video signals after the audio and video pre-processing are mixed with the received audio and video signals in other venues, and then encoded.
  • the signal processor 600 is configured to: receive an audio and video signal sent by the second mobile terminal by using the first mobile terminal, and decode and decode the received audio and video signal, and then process the decoded sound.
  • the video signal is played, wherein the decoded process includes: one or any combination of packet loss compensation, LEC, and mixing.
  • a method for implementing a remote conference is proposed.
  • the conference terminal detects the first mobile terminal in the current conference site, and then the conference terminal passes through the short-range wireless communication channel.
  • the first mobile terminal sends a first dialing indication, where the first dialing indication carries the identifier of the second mobile terminal, so that the first mobile terminal is configured according to the second mobile terminal.
  • the conference terminal encodes the received audio and video signals of other sites and/or the acquired audio and video signals in the current site, and Transmitting to the second mobile terminal by the first mobile terminal based on the audio and video link, and receiving the audio and video signal sent by the second mobile terminal through the first mobile terminal, and decoding and playing, so that even the participant to be accessed
  • the conference terminal controls the first mobile terminal in the conference site to connect with the second mobile terminal to be accessed, and then the audio and video of the other conference sites that are received by the first mobile terminal are not in the range of the sound pickup effect.
  • the signal and/or the obtained audio and video signal of the local site is sent to the second mobile terminal, thereby effectively improving the sound collection range, and at the same time, when accessing the second mobile terminal, the first mobile terminal in the site will be
  • the second mobile terminal can access the remote conference, and the established remote conference connection does not need to be disconnected, thus avoiding disconnecting the connected connection.
  • the remote conference thereby effectively improving the timeliness of accessing new participants, and other conference venues do not have conference terminals, and can also access remote conferences through the second mobile terminal, which also improves access to new participants. Timeliness.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus functions in one or more blocks of a flow or a flow diagram and/or block diagram of a flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions in one or more blocks of the flowchart or in a flow or block of the flowchart.

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Abstract

本发明涉及远程访问技术领域,公开了一种远程会议的实现方法及装置,具体为:会议终端在远程会议建立成功后,检测当前会场内的第一移动终端,然后,会议终端通过短距离无线通信通道向检测到的第一移动终端发送第一拨号指示,使得第一移动终端根据第二移动终端的标识,建立音视频链路,最后,会议终端将接收到的其他会场的音视频信号和/或获取到的当前会场内的音视频信号进行编码,并基于音视频链路通过第一移动终端发送至第二移动终端,及接收第二移动终端通过第一移动终端发来的音视频信号并进行解码后播放,这样,可以有效提高拾音范围,且在接入第二移动终端时,可以避免断开已连接的远程会议,因此,有效提高了接入远程会议的及时性。

Description

一种远程会议的实现方法及装置
本申请要求于 2013年 5月 21 日提交中国专利局、 申请号为
201310190682.2、 发明名称为 "一种远程会议的实现方法及装置" 的中国专 利申请的优先权, 其全部内容通过引用结合在本申请中。 技术领域 本发明涉及通信技术领域, 特别涉及一种远程会议的实现方法及装置。 背景技术 随着通信技术和企业业务规模的发展, 很多企业均需要在各地建立业务基 点, 因此, 现在越来越多的企业通过远程会议进行讨论和沟通。
远程会议是指多个地理位置不同的个人或群体, 通过传输线路及多媒体设 备, 将声音、 影像及文件资料互传, 实现即时且互动的沟通, 可以为语音会议, 也可以为视频会议, 图 1A为现有技术中的实现远程会议的示意图,每一个会场 具有一个会议终端, 将会场一中的会议终端 A为主持者, A具有三个麦克风, 以及音箱和键盘 ,其他会议终端 B、 C、 D均通过 PSTN( Pub l i c Swi tched Tel ephone Network, 公共交换电话网络)参与远程会议, 图 1B为现有技术中的远程会议系统的结构 示意图, 远程会议系统主要包括 MCU ( Mul t i-Point Control Uni t , 多点控制 单元)和会议终端。
现有技术中, 远程会议具有实时性强的优点, 但是, 也存在如下缺陷: 一、 当在某一会场参加远程会议的人数较多时, 需要采用一种特殊电话设 备来达到良好的远距离拾音和播放效果, 但是, 该特殊的电话设备是在一定的 距离范围内具有良好的拾音和播放效果, 因此, 若参会者与特殊电话设备的距 离超出预设范围时, 将无法取得良好的拾音效果, 甚至, 无法参与远程会议。 例如, 目前, 很多企业在远程开会时采用的会议终端通过阵列麦克来扩大拾音 范围, 一般拾音范围为 3米— 5米, 若某一参会者距离会议终端为 10米左右, 则拾音效果仍然较差, 远端参会者可能会听不太清楚, 若某一参会者距离会议 终端为 100米左右, 远端参会者根本无法听见, 也就无法参与远程会议;
二、 当远程会议召开后, 在开会过程中有新的参会者接入时, 若新的参会 者想通过会议终端接入时, 则要先断开已经建立好的多方会议连接, 待新的参 会者接入后再将所有的参会者——接入; 若新的参会者没有会议终端时, 就无 法接入远程会议, 进而无法参加远程会议, 因此, 存在接入新的参会者的及时 性较差的问题。 发明内容 本发明实施例提供一种远程会议的实现方法, 用以解决现有技术中存在的 会议终端所在会场的拾音范围较小、 接入新参会者时及时性较差的问题。
第一方面, 提供一种远程会议的实现方法, 包括:
会议终端在远程会议建立成功后, 检测当前会场内的第一移动终端; 所述会议终端通过短距离无线通信通道向检测到的第一移动终端发送第一 拨号指示, 其中, 所述第一拨号指示携带有第二移动终端的标识, 使得所述第 一移动终端根据所述第二移动终端的标识, 建立与所述标识对应的第二移动终 端之间的音视频链路;
所述会议终端将接收到的其他会场的音视频信号和 /或获取到的当前会场 内的音视频信号进行编码, 并基于所述音视频链路通过所述第一移动终端发送 至所述第二移动终端, 及接收所述第二移动终端通过所述第一移动终端发来的 音视频信号并进行解码后播放。
结合第一方面, 在第一种可能的实现方式中, 检测当前会场内的第一移动 终端, 具体包括: 采用短距离无线通信方式检测当前会场内的第一移动终端。
结合第一方面, 或者第一方面的第一种可能的实现方式, 在第二种可能的 实现方式中, 所述会议终端通过短距离无线通信通道向检测到的第一移动终端 发送第一拨号指示, 具体包括: 所述会议终端接收第三移动终端发送的第二拨 号指示, 所述第二拨号指示携带所述第二移动终端的标识, 并通过短距离无线 通信通道向检测到的第一移动终端发送携带所述第二移动终端的标识的第一拨 号指示。
结合第一方面, 在第三种可能的实现方式中, 建立远程会议, 具体包括: 在接收到第三移动终端发送的建立指示时,通过公共交换电话网络 PSTN进行网络拨号, 并 依次输入待接入远程会议的其他会议终端的标识, 完成远程会议的建立。
结合第一方面, 或者第一方面的第一至第三种可能的实现方式, 在第四种 可能的实现方式中, 令所述第一移动终端根据所述第二移动终端的标识, 建立 与所述标识对应的第二移动终端之间的音视频链路, 包括: 令所述第一移动终 端将携带有所述第二移动终端的标识的信号发送至第一基站, 并令所述第一基 站通过第二基站将所述携带有所述第二移动终端的标识的信号发送至与所述标 识对应的第二移动终端, 建立与所述第二移动终端之间的音视频链路。
结合第一方面, 或者第一方面的第一至第四种可能的实现方式, 在第五种 可能的实现方式中,所述会议终端将接收到的其他会场的音视频信号和 /或获取 到的当前会场内的音视频信号进行编码, 具体包括: 所述会议终端将获取到的 当前会场内的音视频信号进行音视频前处理, 所述音视频前处理包括: AGC ( Automat i c Ga in Control , 自动增益控制)、 AEC ( Acous t ic Echo Cancel ler , 自适应回声抵消)、 ANS ( Automat ic No i se Suppres s ion, 自适应噪声抑制)、 EQ ( Equa l i ser , 动态均衡), 及去混响中的一种或任意组合; 所述会议终端将 进行音视频前处理后的音视频信号与接收到的其他会场内的音视频信号混音后 进行编码。
结合第一方面, 或者第一方面的第一至第五种可能的实现方式, 在第六种 可能的实现方式中, 接收所述第二移动终端通过所述第一移动终端发来的音视 频信号并进行解码后播放, 具体包括: 接收所述第二移动终端通过所述第一移 动终端发来的音视频信号, 并对接收到的音视频信号进行解码及解码后处理, 再对解码后处理的音视频信号进行播放, 其中, 所述解码后的处理过程包括: 丟包补偿、 线路回声抵消 LEC, 及混音中的一种或任意组合。
第二方面, 提供一种远程会议的实现装置, 包括:
检测单元,用于在远程会议建立成功后,检测当前会场内的第一移动终端; 链路建立单元, 用于通过短距离无线通信通道向所述检测单元检测到的第 一移动终端发送第一拨号指示, 其中, 所述第一拨号指示携带有第二移动终端 的标识, 使得所述第一移动终端根据所述第二移动终端的标识, 建立与所述标 识对应的第二移动终端之间的音视频链路;
编解码单元,用于将接收到的其他会场的音视频信号和 /或获取到的当前会 场内的音视频信号进行编码, 并基于所述链路建立单元建立的音视频链路通过 所述第一移动终端发送至所述第二移动终端, 及接收所述第二移动终端通过所 述第一移动终端发来的音视频信号并进行解码后播放。
结合第二方面, 在第一种可能的实现方式中, 所述检测单元具体用于: 采 用短距离无线通信方式检测当前会场内的第一移动终端。 结合第二方面, 或者第二方面的第一种可能的实现方式, 在第二种可能的 实现方式中, 所述链路建立单元具体用于: 接收第三移动终端发送的第二拨号 指示, 所述第二拨号指示携带所述第二移动终端的标识, 并通过短距离无线通 信通道向所述检测单元检测到的第一移动终端发送携带所述第二移动终端的标 识的第一拨号指示。
结合第二方面, 在第三种可能的实现方式中, 所述检测单元具体用于: 在 接收到第三移动终端发送的建立指示时, 通过公共交换电话网络 PSTN进行网络拨号, 并依 次输入待接入远程会议的其他会议终端的标识, 完成远程会议的建立。
结合第二方面, 或者第二方面的第一至第三种可能的实现方式, 在第四种 可能的实现方式中, 所述链路建立单元具体用于: 令所述第一移动终端将携带 有所述第二移动终端的标识的信号发送至第一基站, 并令所述第一基站通过第 二基站将所述携带有所述第二移动终端的标识的信号发送至与所述标识对应的 第二移动终端, 建立与所述第二移动终端之间的音视频链路。
结合第二方面, 或者第二方面的第一至第四种可能的实现方式, 在第五种 可能的实现方式中, 所述编解码单元具体用于: 将获取到的当前会场内的音视 频信号进行音视频前处理, 所述音视频前处理包括: 自动增益控制 AGC、 自适 应回声抵消 AEC、 自适应噪声抑制 ANS、 动态均衡 EQ , 及去混响中的一种或任 意组合; 将进行音视频前处理后的音视频信号与接收到的其他会场内的音视频 信号混音后进行编码。
结合第二方面, 或者第二方面的第一至第五种可能的实现方式, 在第六种 可能的实现方式中, 所述编解码单元具体用于: 接收所述第二移动终端通过所 述第一移动终端发来的音视频信号, 并对接收到的音视频信号进行解码及解码 后处理, 再对解码后处理的音视频信号进行播放, 其中, 所述解码后的处理过 程包括: 丟包补偿、 线路回声抵消 LEC , 及混音中的一种或任意组合。
第三方面, 提供一种会议终端, 包括:
信号处理器, 用于在远程会议建立成功后, 检测当前会场内的第一移动终 端, 并通过短距离无线通信通道向所述检测单元检测到的第一移动终端发送第 一拨号指示, 其中, 所述第一拨号指示携带有第二移动终端的标识, 使得所述 第一移动终端根据所述第二移动终端的标识, 建立与所述标识对应的第二移动 终端之间的音视频链路,且将接收到的其他会场的音视频信号和 /或获取到的当 前会场内的音视频信号进行编码, 及接收所述第二移动终端通过所述第一移动 终端发来的音视频信号并进行解码;
信号收发器,用于将编码后的其他会场的音视频信号和 /或获取到的当前会 场内的音视频信号, 基于所述信号处理器建立的音视频链路通过所述第一移动 终端发送至所述第二移动终端, 及解码后的所述第二移动终端通过所述第一移 动终端发来的音视频信号播放。
结合第三方面, 在第一种可能的实现方式中, 所述信号处理器具体用于: 采用短距离无线通信方式检测当前会场内的第一移动终端。
结合第三方面, 或者第三方面的第一种可能的实现方式, 在第二种可能的 实现方式中, 所述信号处理器具体用于: 接收第三移动终端发送的第二拨号指 示, 所述第二拨号指示携带所述第二移动终端的标识, 并通过短距离无线通信 通道向检测到的第一移动终端发送携带所述第二移动终端的标识的第一拨号指 示。
结合第三方面, 在第三种可能的实现方式中, 所述信号处理器具体用于: 在接收到第三移动终端发送的建立指示时,通过公共交换电话网络 PSTN进行网络拨号, 并 依次输入待接入远程会议的其他会议终端的标识, 完成远程会议的建立。
结合第三方面, 或者第三方面的第一至第三种可能的实现方式, 在第四种 可能的实现方式中, 所述信号处理器具体用于: 令所述第一移动终端将携带有 所述第二移动终端的标识的信号发送至第一基站, 并令所述第一基站通过第二 基站将所述携带有所述第二移动终端的标识的信号发送至与所述标识对应的第 二移动终端, 建立与所述第二移动终端之间的音视频链路。
结合第三方面, 或者第三方面的第一至第四种可能的实现方式, 在第五种 可能的实现方式中, 所述信号处理器具体用于: 将获取到的当前会场内的音视 频信号进行音视频前处理, 所述音视频前处理包括: 自动增益控制 AGC、 自适 应回声抵消 AEC、 自适应噪声抑制 ANS、 动态均衡 EQ , 及去混响中的一种或任 意组合; 将进行音视频前处理后的音视频信号与接收到的其他会场内的音视频 信号混音后进行编码。
结合第三方面, 或者第三方面的第一至第五种可能的实现方式, 在第六种 可能的实现方式中, 所述信号处理器用于: 接收所述第二移动终端通过所述第 一移动终端发来的音视频信号, 并对接收到的音视频信号进行解码及解码后处 理, 再对解码后处理的音视频信号进行播放, 其中, 所述解码后的处理过程包 括: 丟包补偿、 线路回声抵消 LEC, 及混音中的一种或任意组合。 本发明实施例中, 提出一种远程会议的实现方法, 会议终端在远程会议建 立成功后, 检测当前会场内的第一移动终端, 然后, 会议终端通过短距离无线 通信通道向检测到的第一移动终端发送第一拨号指示, 其中, 第一拨号指示携 带有第二移动终端的标识, 使得第一移动终端根据第二移动终端的标识, 建立 与标识对应的第二移动终端之间的音视频链路, 最后, 会议终端将接收到的其 他会场的音视频信号和 /或获取到的当前会场内的音视频信号进行编码,并基于 音视频链路通过第一移动终端发送至第二移动终端, 及接收第二移动终端通过 第一移动终端发来的音视频信号并进行解码后播放, 这样, 即使待接入的参会 者不在具有良好的拾音效果的范围内时, 会议终端控制本会场内的第一移动终 端与待接入的第二移动终端进行连接, 进而通过第一移动终端将接收到的其他 会场的音视频信号和 /或获取到的本会场的音视频信号发送至第二移动终端,从 而有效提高了拾音范围, 同时, 由于在接入第二移动终端时, 通过本会场内的 第一移动终端将第二移动终端接入远程会议即可, 不需要将已建立的远程会议 连接断开, 因此, 避免了断开已连接的远程会议, 从而, 有效提高了接入新的 参会者的及时性, 且其他会场不具备会议终端, 也可以通过第二移动终端接入 远程会议, 同样提高了接入新的参会者的及时性。 附图说明 图 1A为现有技术中实现远程会议的示意图;
图 1B为现有技术中远程会议系统的结构示意图;
图 2A为本发明实施例中实现远程会议的示意图;
图 2B为本发明实施例中实现远程会议过程的第一详细流程图;
图 2C 为本发明实施例中会议终端发送音视频信号时的音频发送流的示意 图;
图 3A 为本发明实施例中会议终端作为主持者实现远程会议过程的第二详 细流程图;
图 3B为本发明实施例中会议终端作为主持者的实现远程会议的示意图; 图 3C为本发明实施例中会议终端发送声音信号时音频发送流的示意图; 图 3D为本发明实施例中会议终端接收声音信号时音频发送流的示意图; 图 4A 为本发明实施例中第三移动终端作为主持者实现远程会议过程的第 二伴细流程图; 图 4B为本发明实施例中第三移动终端作为主持者实现远程会议的示意图; 图 5为本发明实施例中实现装置的功能结构示意图;
图 6为本发明实施例中会议终端的功能结构示意图。 具体实施方式 为了解决现有技术中存在的拾音范围较小、 接入新参会者及时性较差的问 题, 本发明实施例中, 提出一种远程会议的实现方法, 会议终端在远程会议建 立成功后, 检测当前会场内的第一移动终端, 然后, 会议终端通过短距离无线 通信通道向检测到的第一移动终端发送第一拨号指示, 其中, 第一拨号指示携 带有第二移动终端的标识, 使得第一移动终端根据第二移动终端的标识, 建立 与标识对应的第二移动终端之间的音视频链路, 最后, 会议终端将接收到的其 他会场的音视频信号和 /或获取到的当前会场内的音视频信号进行编码,并基于 音视频链路通过第一移动终端发送至第二移动终端, 及接收第二移动终端通过 第一移动终端发来的音视频信号并进行解码后播放, 这样, 即使待接入的参会 者不在具有良好的拾音效果的范围内时, 会议终端控制本会场内的第一移动终 端与待接入的第二移动终端进行连接, 进而通过第一移动终端将接收到的其他 会场的音视频信号和 /或获取到的本会场的音视频信号发送至第二移动终端,从 而有效提高了拾音范围, 同时, 由于在接入第二移动终端时, 通过本会场内的 第一移动终端将第二移动终端接入远程会议即可, 不需要将已建立的远程会议 连接断开, 因此, 避免了断开已连接的远程会议, 从而, 有效提高了接入新的 参会者的及时性, 且其他会场不具备会议终端, 也可以通过第二移动终端接入 远程会议, 同样提高了接入新的参会者的及时性。
随着通信技术的发展, 人们拥有了越来越多的个人通信设备, 例如, 手机、 笔记本电脑、 PDA ( Persona l Dig i ta l As s i s tant , 掌上电脑)等等, 而且这些 设备大多具有短距离通信的能力, 因此, 人们越来越希望能够将身边的这些设 备连接到一起, 组成一个无线个域网, 共享彼此的资源与能力。
目前, 蓝牙技术是短距离通信所采用的一种技术, 蓝牙的一个重要的应用 模型是 CTP ( Cordles s Telephony Prof i le, 即无绳电话协议) 网关, 其中, CTP网关是蓝牙电话网关的简称。 CTP网关可以允许接入多达七部具有蓝牙无线 通信能力的通讯终端, 如, 智能蜂窝电话、 PDA 等。 加入网关的通信终端被称 为蓝牙分机, 网关为每个蓝牙分机分配一个分机号码。 会议终端可以通过与网 关连接的蓝牙分机进行拨号, 建立远端的通信连接。 同时, 蓝牙分机也可以通 过网关与其他蓝牙分机建立数据链接。
蓝牙技术还有个重要的应用 HFP ( Hands-f ree Prof i le , 免提规格)免提 配置文件, 让蓝牙设备可以控制电话, 如接听、 挂断、 拒接、 语音拨号等。
为使本发明实施例的目的、 技术方案和优点更加清楚, 下面将结合本发明 实施例中的附图, 对本发明实施例中的技术方案进行清楚、 完整地描述, 显然, 所描述的实施例是本发明一部分实施例, 而不是全部的实施例。 基于本发明中 的实施例, 本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其 他实施例, 都属于本发明保护的范围。
本文中术语"和 /或", 仅仅是一种描述关联对象的关联关系, 表示可以存在 三种关系, 例如, A和 /或 B, 可以表示: 单独存在 A, 同时存在 A和 B, 单独存 在 B这三种情况。 另外, 本文中字符" /", 一般表示前后关联对象是一种"或,,的 关系。
下面结合附图对本发明优选的实施方式进行详细说明。
实施例一
本发明实施例一中, 远程会议实现的详细流程如下:
(其中, 图 2A为本发明实施例的实现远程会议的示意图, 图 2B为本发明 实施例中实现远程会议的详细流程图,图 2C为本发明实施例中会议终端发送音 视频信号时的音频发送流的示意图)
步骤 200: 会议终端在远程会议建立成功后, 检测当前会场内的第一移动 终端。
本发明实施例中,如图 2A所示的会场一中的会议终端建立远程会议时,可 以根据用户指示通过 PSTN网络拨号建立远程会议, 也可以, 在接收到如图 2A所示 的会场一中的第三移动终端根据用户指示发送的拨号指示时,再通过 PSTN网络拨号 建立远程会议。
本发明实施例中, 会议终端无论是根据用户指示还是在接收到第三移动终 端的拨号指示, 建立远程会议, 其中, 在建立远程会议时, 都是要先通过 PSTN 进行网络拔号, 再依次输入待接入远程会议的其他会议终端的标识, 从而完成远程会议的建立。
本发明实施例中,如图 2A所示的会场一中的会议终端检测本会场内的任意 一第一移动终端的方式有多种, 较佳的, 采用短距离无线通信方式检测本会场 内的第一移动终端, 或者,在接收到如图 2A所示的会场一中的第三移动终端发 送的检测指示时, 采用短距离无线通信方式检测本会场内的第一移动终端, 其 中,短距离无线通信可以为基于蓝牙的通信技术,也可以为基于 WIFI的通信技 术, 还可以为基于 Zig Bee的通信技术或者基于超宽带的通信技术。
上述提及的采用短距离无线通信方式检测到的第一会场内的第一移动终端 是指, 若短距离无线通信技术为基于蓝牙的通信技术, 则检测到的第一移动终 端是指开启蓝牙功能的第一移动终端;若短距离无线通信技术为基于 WIFI的通 信技术, 则检测到的第一移动终端是指开启 WIFI功能的第一移动终端; 若短距 离无线通信技术为基于 Zi g Bee的通信技术, 则检测到的第一移动终端是指开 启 Zig Bee功能的第一移动终端。
本发明实施例中,如图 2A所示的会场一中的会议终端检测到本会场内的第 一移动终端后, 给第一移动终端分配子机地址, 与第一移动终端建立连接。
步骤 210: 会议终端通过短距离无线通信通道向检测到的第一移动终端发 送第一拨号指示, 其中, 第一拨号指示携带有第二移动终端的标识, 使得第一 移动终端根据第二移动终端的标识, 建立与标识对应的第二移动终端之间的音 视频链路。
本发明实施例中,如图 2A所示的会场一中的会议终端通过短距离无线通信 通道向检测到的第一移动终端发送第一拨号指示时, 可以在根据用户指示输入 如图 2A所示中的会场一或者会场二中的第二移动终端的标识时,向检测到的第 一移动终端发送携带第二移动终端标识的第一拨号指示, 也可以在接收到如图 2A 所示的会场一中的第三移动终端发送的携带第二移动终端的标识的第二拨 号指示时, 向检测到的第一移动终端发送携带第二移动终端的标识的第一拨号 指示, 其中, 若会议终端接收到本会场内的第三移动终端发送的携带第二移动 终端的标识的第二拨号指示, 则用户在第三移动终端中输入第二移动终端的标 识。
本发明实施例中, 如图 2A的会场一中的会议终端无论在输入如图 2A所示 中的会场一或会场二中的第二移动终端的标识时, 向检测到的会场一中的第一 移动终端发送携带第二移动终端的标识的第一拨号指示, 还是在接收到如图 2A 的会场一中的第三移动终端发送的携带第二移动终端的标识的第二拨号指示 时, 才向检测到的会场一中的第一移动终端发送携带第二移动终端的标识的第 一拨号指示, 会场一中的第一移动终端接收到第一拨号指示后, 都要先解析第 一拨号指示, 并根据解析出的第一拨号指示中携带的第二移动终端的标识, 向 与该标识相对应的第二移动终端发送建立音视频连接请求, 在第二移动终端接 收请求后, 第一移动终端完成与该标识相对应的第二移动终端之间的音视频链 路的建立, 其中, 第一移动终端与第二移动终端之间通过公共无线网络进行连 接, 如, CDMA ( Code DivisionMultiple Access, 码分多址)、 TD-SCDMA (Time Division Synchronized Code Division Multiple Access, 时分同步 CDMA )、 GSM ( Global System for Mobile Communications, 全球移动通信系统)等。
本发明实施例中, 第一移动终端根据第二移动终端的标识, 建立与标识对 应的第二移动终端之间的音视频链路的方式有多种, 较佳的, 第一移动终端将 携带有第二移动终端的标识的信号发送至第一基站, 然后, 第一基站通过第二 基站将携带有第二移动终端的标识的信号发送至与标识对应的第二移动终端, 从而建立与第二移动终端之间的音视频链路。
同时, 第二移动终端在接收到第一移动终端的请求后, 向第一移动终端发 送反馈接通信息, 会议终端接收到第一移动终端发送的反馈接通信息后, 完成 与第二移动终端的 SCO ( Synchronous Connection Oritened, 同步定向链接) 音视频链路建立。
步骤 220: 会议终端将接收到的其他会场的音视频信号和 /或获取到的当前 会场内的音视频信号进行编码, 并基于音视频链路通过第一移动终端发送至第 二移动终端, 及接收第二移动终端通过第一移动终端发来的音视频信号并进行 解码后播放。
本发明实施例中,如图 2A的会场一中的会议终端将接收到的第三会场的音 视频信号和 /或获取到的会场一内的音视频信号进行编码的具体实现方式有多 种, 较佳的, 可以采用如下方式:
将获取到的会场一内的音视频信号进行音视频前处理,音视频前处理包括: AGC、 AEC、 ANS、 EQ、 去混响中的一个或任意组合; 将进行音视频前处理后的音 视频信号与接收到的第三会场的音视频信号进行混音后进行编码, 其中, 在将 进行混音后的音视频信号进行编码时, 为两次编码, 然后, 将两次编码后的音 视频信号发送至会场一内的第一移动终端, 第一移动终端在接收到两次编码后 的音视频信号后, 经过解码处理, 再基于音视频链路发送至会场一或会场二内 的第二移动终端, 其中, 若第二移动终端位于会场一时, 第二移动终端与会议 终端的距离较远, 拾音效果较差。
上述操作为会议终端将接收到的会场三内的音视频信号和 /或获取到的会 场一内的音视频信号发送至第二移动终端的过程, 同理, 在实际应用中, 会场 一中的会议终端也可以接收会场二中的第二移动终端通过会场一中的第一移动 终端发来的音视频信号,并对接收到的会场二中的音视频信号进行解码后播放, 其中, 接收第二移动终端通过第一移动终端发来的会场二中的音视频信号并进 行解码后播放的实现方式有多种, 例如, 基于公共无线网络接收第二移动终端 通过第一移动终端发来的会场二中的音视频信号, 在接收到后, 进行解码及解 码后处理, 然后,将解码后处理的会场二中的音视频信号通过扬声器播放出来, 以及通过 PSTN传送至第三会场, 完成对第二移动终端发来的音视频信号的接 收, 其中, 解码后处理包括: 丟包补偿, LEC , 混音中的一个或任意组合。
在实际应用中, 在远程会议进行的过程中, 也可能新增多个参会者, 也就 是如图 2A的会场一中的会议终端新接入多个第二移动终端,其中, 第二移动终 端可以位于会场二中, 也可以位于除会场一、 会场二外的其他会场, 需要新增 多个第二移动终端时, 会议终端可以通过会场一中的一个第一移动终端接入多 个第二移动终端, 也可以通过会场一中的多个第一移动终端接入多个第二移动 终端, 上述两种方式都可以通过步骤 200至步骤 230实现, 需要注意的是, 会 议终端接入至少两个第二移动终端时, 若通过一个第一移动终端接入所有的第 二移动终端, 则向检测到的第一移动终端分配子机地址, 然后向检测到的第一 移动终端发送携带所有第二移动终端的标识的第一拨号指示, 第一移动终端根 据第一拨号指示中携带的每一个标识, 依次与该标识对应的第二移动终端之间 建立音视频链路; 若每一个第二移动终端分别通过不同的第一移动终端接入, 则向每一个移动终端分配不同的子机地址, 然后, 向每一个第一移动终端发送 携带不同第二移动终端的标识的第一拨号指示, 然后, 每一个第一移动终端根 据接收到的第一拨号指示中携带的第二移动终端的标识, 与标识相对应的第二 移动终端建立音视频链路。
新增多个参会者后, 即多个第二移动终端后, 会议终端可以通过第一移动 终端接收至少两个第二移动终端发来的第二会场的音视频信号, 并将接收到的 第二会场中的音视频信号经过解码后进行混音处理,然后播放,完成接收,其中, 第一移动终端在接收到至少两个第二移动终端发来的第二会场的声音信号之 后, 要对接收到的声音信号进行编解码, 然后, 再发送至会议终端。 同理, 如 图 2A 中的会议终端通过会场一内的第一移动接收至少两个第二移动终端发来 的音视频信号时, 可以通过会场一内的一个第一移动终端进行接收, 也可以通 过会场一内的多个第一移动终端进行接收。
上述步骤 200至步骤 230提及的较佳的执行主体为会议终端, 在实际应用 中, 上述步骤 200至步骤 230的执行主体还有其他, 在此不再进行详述。
本发明实施例中,如图 2A所示中的会议终端在接收到本会场的第三移动终 端发送的建立指示时, 通过 PSTN进行网络拨号, 完成远程会议的建立, 并在接收到本会场 的第三移动终端发送的检测指示时, 通过短距离无线通信通道检测本会场内的 第一移动终端, 以及在接收到本会场内的第三移动终端发送的携带第二移动终 端的标识的第二拨号指示时, 向检测到的第一移动终端发送携带第二移动终端 的标识的第一拨号指示, 则本会场内的第三移动终端为主持者, 否则, 会议终 端为主持者。
由于上述实现方案中, 会议终端通过本会场的第一移动终端和与会议终端 相距较远的本会场或其他会场中的第二移动终端进行连接, 进而通过本会场中 的第一移动终端将接收到的第三会场的音视频信号和 /或获取的本会场内的音 视频信号传输至本会场或第二会场内的第二移动终端, 或者接收位于第二会场 的第二移动终端发来的第二移动终端所在会场的音视频信号, 也就是接入第二 移动终端, 其中, 第一移动终端起到 "无线 PSTN" 的作用, 即其本身只起到中 转的作用,将会议终端接收的第三会场的音视频信号和 /或获取的本会场内的音 视频信号发送至第二移动终端, 或者, 将第二移动终端所在的第二会场时的第 二会场的音视频信号发送至会议终端。 这样, 即使与会议终端距离较远的持有 第二移动终端的参会者, 或者与会议终端不在同一会场的持有第二移动终端的 参会者, 也可 4艮好接收会议终端所在的第一会场的音视频信号, 因此, 扩大了 拾音范围, 并且在接入第二移动终端时, 不需要断开已连接的远程会议, 即会 议终端 A与会议终端 B之间的连接, 第二移动终端能及时接入, 同时, 在第二 会场不具备会议终端的情况下, 也参会者通过第二移动终端也可以接入远程会 议, 因此, 提高了接入新参会者的及时性。
为了更好地理解本发明实施例, 以下给出具体应用场景, 针对远程会议的 实现过程, 做出进一步详细描述。
实施例二
远程会议进行过程中, 需要新增一位与会议终端不在同一会场的参加者的 过程, 具体实现流程图如图 3A所示: (参阅图 3B所示, A为第一会议终端、 B 为第一移动终端、 C为第二移动终端、 D为第二会议终端, A、 B均处于第一会 场, C处于第二会场, D处于第三会场, 且 A作为主持者)
步骤 300: A通过 PSTN进行网络拨号建立远程会议。
步骤 310: A通过蓝牙检测第一会场内打开蓝牙功能的移动终端, 并将检测 到的其中一个开启蓝牙功能的移动终端作为 B。
步骤 320: A将子机地址分配给 B, 通过蓝牙与检测到的 B建立连接。
步骤 330: A根据用户指示输入 C的电话号码时,通过蓝牙向 B发送第一拨 号指示, 令 B根据第一拨号指示中携带的 C的标识向 C拨号, 建立 B与 C之间 的音视频链路。
该步骤中, B在成功解析接收到的第一拨号指示后, 向 C拨号, B与 C建立 语音视频链路, 其中, B与 C之间通过 TD-SCDMA建立通话和视频连接。
步骤 340: A接收 B发送的 C的反馈接通信息后,建立 A与 B的 SCO音视频 链路。
步骤 350: A对获取到的第一会场内的音视频信号进行 AGC、 AEC、 ANS、 EQ、 去混响等处理。
步骤 360: A对处理后的音视频信号与通过 PSTN接收到的第三会场发送来 的音视频信号进行混音后, 进行两次编码, 并通过蓝牙发送至 B, 并在 B经过 相应的解码处理后, 通过 TD-SCDMA网络将音视频信号发送至 C, 完成第一会场 的音视频信号的传送。
上述步骤 300至步骤 360为将第一会场的声音传输至 C的过程, 图 3C为 A 发送音视频信号时的音频发送流的示意图, 在实际应用中, 第二会场的音视频 信号也可以传输至 A, 具体为第二会场的音视频信号通过 B发送至 A, A解码后 再进行丟包补偿, LEC , 混音后, 通过扬声器在第一会场播放出来, 以及通过 PSTN传送至第三会场, 完成对第二会场的音视频信号的接收, 图 3D为 A接收 音视频信号时的音频接收流的示意图。
上述步骤 300至步骤 360为将第一会场的音视频信号传输至 C的过程, 也 就是新增一个参会者的过程, 在实际应用中, 当在远程会议进行中, 需要新增 多个第二移动终端时, 即多个参会者时, 可以通过第一会场的一个第一移动终 端接入所有的第二移动终端, 也可以通过第一会场的多个第一移动终端接入多 个第二移动终端。
例如, 会议终端 A通过 1个第一移动终端接入 3个第二移动终端 (第二移 动终端 1、 第二移动终端 2、 第二移动终端 3 ) 时, A通过蓝牙确定出 3个开启 蓝牙功能的其中 1个移动终端作为第一移动终端(第一移动终端 1 ),建立连接, 并给第一移动终端 1分配子机地址, 通过第一移动终端 1向第二移动终端 1发 送 A接收到的其他会场的音视频信号和 /或获取到的本会场的音视频信号,即接 入第二移动终端 1 ; 再通过第一移动终端 1向第二移动终端 2发送 A接收到的 其他会场的音视频信号和 /或获取到的本会场内的音视频信号,即接入第二移动 终端 2 ; 然后, 通过第一移动终端 1向第二移动终端 3发送 A接收到的其他会 场的音视频信号和 /或获取到的本会场内的音视频信号, 即接入第二移动终端 3。
又例如, 会议终端 A通过 3个第一移动终端接入 3个第二移动终端 (第二 移动终端 1、 第二移动终端 2、 第二移动终端 3 ) 时, A通过蓝牙确定出 3个开 启蓝牙功能的移动终端作为第一移动终端 (第一移动终端 1、 第一移动终端 2、 第一移动终端 3 ), 分别建立连接, 并分别给 3个第一移动终端分配相应的子机 地址: 与第一移动终端 1相对应的为子机地址 1、 与第一移动终端 2相对应的 为子机地址 2、与第一移动终端 3相对应的为子机地址 3 , 并通过第一移动终端 1向第二移动终端 1发送 A接收到的其他会场的音视频信号和 /或获取到的本会 场内的音视频信号, 即接入第二移动终端 1 ; 通过第一移动终端 2向第二移动 终端 2发送 A接收到的其他会场的音视频信号和 /或获取到的本会场内的音视频 信号, 即接入第二移动终端 2 ; 通过第一移动终端 3向第二移动终端 3发送 A 接收到的其他会场的音视频信号和 /或获取到的本会场内的音视频信号,即接入 第二移动终端 3。
会议终端 A也可以接收第二移动终端所在会场的音视频信号, 当为多个第 二移动终端时, 会议终端要对接收到的多个第二移动终端的音视频信号进行混 音, 然后再通过扬声器传播出去。 当然, 当会议终端 A拾取到多个会场的音视 频信号时, 先将多个会场的音视频信号混音后, 再通过不同的第一移动终端分 别发送至相应的第二移动终端, 完成发送。
实施例三
远程会议进行过程中, 需要新增一位不在场的参加者的过程, 具体实现流 程图如图 4A所示: (参阅图 4B所示, A为第一会议终端、 B为第一移动终端、 C 为第二移动终端、 D为第三移动终端、 E为第二会议终端, A、 B所在的会场均 为第一会场, C所处的会场为第二会场, D作为主持者, E所处的会场为第三会 场) 步骤 400: A与 D之间通过 WI F I进行连接, 并获得 D的子机地址 1。
步骤 410: A通过 WIFI接收到 D发送的建立指示后, 通过 PSTN网络拨号建立 远程会议。
步骤 420: A接收到 D发送的检测指示并解析后, 通过 WIFI检测第一会场 内开启 WIFI功能的第一移动终端,并将检测到的其中一个第一移动终端作为 B。
步骤 430: A将子机地址 2分配给 B , 与检测到的 B建立连接。
步骤 440: A接收到 D在输入 C的电话号码后通过 WIFI发送的第二拨号指 示, 令 B根据第一拨号指示中携带的 C的标识向 C拨号, 建立 B与 C之间的音 视频链路。
步骤 450: A接收 B发送的 C的反馈接通信息后,建立 A与 B的 SCO音视频 链路。
步骤 460: A获取到的第一会场内的音视频信号进行 AGC、 AEC、 ANS、 EQ、 去混响等处理。
步骤 470: A对处理后的音视频信号与通过 PSTN接收到的 E发送来的第三 会场的音视频信号进行混音后, 进行两次编码, 并通过 WIFI发送至 B, 并在 B 经过相应的解码处理后, 通过 TD-SCDMA网络将音视频信号发送至 C, 完成第一 会场与第三会场的音视频信号的传送。
上述步骤 400至步骤 470为将第一会场及第三会场的音视频信号传输至 C 的过程, 在实际应用中, 第二会场的音视频信号也可以传输至 A, 具体为第二 会场的音视频信号通过 B发送至 A, A解码后再进行丟包补偿, LEC, 混音后, 通过扬声器播放出来, 以及通过 PSTN传送至第三会场, 完成对第二会场的音视 频信号的接收。
上述步骤 400至步骤 470为将第一会场的音视频信号传输至 C的过程, 也 就是新增一个参会者的过程, 在实际应用中, 当在远程会议进行中, 需要新增 多个第二移动终端时, 即多个参会者时, 可以通过一个第一移动终端接入所有 的第二移动终端, 也可以通过多个第一移动终端接入多个第二移动终端。
例如, 通过 1个第一移动终端接入 3个第二移动终端 (第二移动终端 1、 第二移动终端 2、 第二移动终端 3 ) 时, 会议终端 A通过 WIFI与第三移动终端 进行连接, 通过 WIFI接收到第三移动终端发送的建立指示后, 通过 PSTN建立远 程会议, 会议终端 A接收到第三移动终端发送的检测指示并解析后, 通过 WIFI 确定出三个开启 WIFI功能中的其中 1个移动终端作为第一移动终端(第一移动 终端 1 ), 建立连接, 并给第一移动终端 1分配子机地址, 并通过第一移动终端 1向第二移动终端 1发送会议终端 A接收到的其他会场的音视频信号和 /或获取 到的本会场内的音视频信号, 即接入第二移动终端 1 ; 再通过第一移动终端 1 向第二移动终端 2发送会议终端 A接收到的其他会场的音视频信号和 /或获取到 的本会场内的音视频信号, 即接入第二移动终端 2; 然后, 通过第一移动终端 1 向第二移动终端 3发送会议终端 A接收到的其他会场的音视频信号和 /或获取到 的本会场内的音视频信号, 即接入第二移动终端 3。
又例如, 通过 3个第一移动终端接入 3个第二移动终端(第二移动终端 1、 第二移动终端 2、 第二移动终端 3 ) 时, 会议终端 A通过 WIFI与第三移动终端 进行连接, 通过 WIFI接收到第三移动终端发送的建立指示后, 通过 PSTN网络拨号 建立远程会议, 会议终端 A接收到第三移动终端发送的检测指示并解析后, 会 议终端 A通过蓝牙确定出三个开启 WIFI功能的其中 3个移动终端作为第一移动 终端 (第一移动终端 1、 第一移动终端 2、 第一移动终端 3 ), 分别建立连接, 并分别给三个移动终端分配相应的子机地址: 与第一移动终端 1相对应的为子 机地址 1、与第一移动终端 2相对应的为子机地址 2、与第一移动终端 3相对应 的为子机地址 3 , 通过第一移动终端 1向第二移动终端 1发送会议终端 A接收 到的其他会场的音视频信号和 /或获取到的本会场内的音视频信号,即接入第二 移动终端 1 ; 通过第一移动终端 2向第二移动终端 2发送会议终端 A接收到的 其他会场的音视频信号和 /或获取到的本会场内的音视频信号,即接入第二移动 终端 2; 通过第一移动终端 3向第二移动终端 3发送会议终端 A接收到的其他 会场的音视频信号和 /或获取到的本会场内的音视频信号,即接入第二移动终端 3。
实施例四
本发明实施例四提出一种远程会议的实现装置, 如图 5所示, 该实现装置 包括:
检测单元 500 , 用于在远程会议建立成功后, 检测当前会场内的第一移动 终端;
链路建立单元 510 , 用于通过短距离无线通信通道向检测单元 500检测到 的第一移动终端发送第一拨号指示, 其中, 第一拨号指示携带有第二移动终端 的标识, 使得第一移动终端根据第二移动终端的标识, 建立与标识对应的第二 移动终端之间的音视频链路; 编解码单元 520, 用于将接收到的其他会场的音视频信号和 /或获取到的当 前会场内的音视频信号进行编码, 并基于链路建立单元建立的音视频链路通过 第一移动终端发送至第二移动终端, 及接收第二移动终端通过第一移动终端发 来的音视频信号并进行解码后播放。
较佳的, 检测单元 500在检测第一移动终端时, 采用短距离无线通信方式 检测当前会场内的第一移动终端。
较佳的, 链路建立单元 510具体用于: 接收第三移动终端发送的第二拨号 指示, 第二拨号指示携带第二移动终端的标识, 并通过短距离无线通信通道向 检测单元检测到的第一移动终端发送携带第二移动终端的标识的第一拨号指 示。
本发明实施例中, 检测单元 500在建立远程会议时, 在接收到第三移动终 端发送 0 建立才旨示日于,通过 PSTN进行网络拨号, 并依次输入待接入远程会议的其他会议终端的标 识, 完成远程会议的建立。
本发明实施例中,链路建立单元 510在建立音视频链路时,令第一移动终端将携 带有第二移动终端的标识的信号发送至第一基站, 并令第一基站通过第二基站 将携带有第二移动终端的标识的信号发送至与标识对应的第二移动终端, 建立 与第二移动终端之间的音视频链路。
较佳的, 编解码单元 520具体用于: 将获取到的当前会场内的音视频信号 进行音视频前处理, 音视频前处理包括: AGC、 AEC、 ANS、 EQ, 及去混响中的 一种或任意组合; 将进行音视频前处理后的音视频信号与接收到的其他会场内 的音视频信号混音后进行编码。
较佳的, 编解码单元 520具体用于: 接收第二移动终端通过第一移动终端 发来的音视频信号, 并对接收到的音视频信号进行解码及解码后处理, 再对解 码后处理的音视频信号进行播放, 其中, 解码后的处理过程包括: 丟包补偿、 LEC, 及混音中的一种或任意组合。
实施例五
本发明实施例五提出一种会议终端, 如图 6所示, 该会议终端包括: 信号处理器 600, 用于在远程会议建立成功后, 检测当前会场内的第一移 动终端, 并通过短距离无线通信通道向检测单元检测到的第一移动终端发送第 一拨号指示, 其中, 第一拨号指示携带有第二移动终端的标识, 使得第一移动 终端根据第二移动终端的标识, 建立与标识对应的第二移动终端之间的音视频 链路,且将接收到的其他会场的音视频信号和 /或获取到的当前会场内的音视频 信号进行编码, 及接收第二移动终端通过第一移动终端发来的音视频信号并进 行解码;
信号收发器 610, 用于将编码后的其他会场的音视频信号和 /或获取到的当 前会场内的音视频信号, 基于信号处理器 600建立的音视频链路通过第一移动 终端发送至第二移动终端, 及解码后的第二移动终端通过第一移动终端发来的 音视频信号播放。
本发明实施例中, 信号处理器 600具体用于: 采用短距离无线通信方式检 测当前会场内的第一移动终端。
较佳的, 信号处理器 600具体用于: 接收第三移动终端发送的第二拨号指 示, 第二拨号指示携带第二移动终端的标识, 并通过短距离无线通信通道向检 测到的第一移动终端发送携带第二移动终端的标识的第一拨号指示。
较佳的, 信号处理器 600在建立远程会议时, 在接收到第三移动终端发送
0 建立才旨示日于, 通过 PSTN进行网络拨号, 并依次输入待接入远程会议的其他会议终端的标识, 完成 远程会议的建立。
较佳的, 信号处理器 600具体用于: 令第一移动终端将携带有第二移动终端 的标识的信号发送至第一基站, 并令第一基站通过第二基站将携带有第二移动 终端的标识的信号发送至与标识对应的第二移动终端, 建立与第二移动终端之 间的音视频链路。
较佳的, 信号处理器 600具体用于: 将获取到的当前会场内的音视频信号 进行音视频前处理, 音视频前处理包括: AGC、 AEC、 ANS、 EQ, 及去混响中的 一种或任意组合; 将进行音视频前处理后的音视频信号与接收到的其他会场内 的音视频信号混音后进行编码。
较佳的, 信号处理器 600用于: 接收第二移动终端通过第一移动终端发来 的音视频信号, 并对接收到的音视频信号进行解码及解码后处理, 再对解码后 处理的音视频信号进行播放, 其中, 解码后的处理过程包括: 丟包补偿、 LEC , 及混音中的一种或任意组合。
综上所述, 本发明实施例中, 提出一种远程会议的实现方法, 会议终端在 远程会议建立成功后, 检测当前会场内的第一移动终端, 然后, 会议终端通过 短距离无线通信通道向检测到的第一移动终端发送第一拨号指示, 其中, 第一 拨号指示携带有第二移动终端的标识, 使得第一移动终端根据第二移动终端的 标识, 建立与标识对应的第二移动终端之间的音视频链路, 最后, 会议终端将 接收到的其他会场的音视频信号和 /或获取到的当前会场内的音视频信号进行 编码, 并基于音视频链路通过第一移动终端发送至第二移动终端, 及接收第二 移动终端通过第一移动终端发来的音视频信号并进行解码后播放, 这样, 即使 待接入的参会者不在具有良好的拾音效果的范围内时, 会议终端控制本会场内 的第一移动终端与待接入的第二移动终端进行连接, 进而通过第一移动终端将 接收到的其他会场的音视频信号和 /或获取到的本会场的音视频信号发送至第 二移动终端, 从而有效提高了拾音范围, 同时, 由于在接入第二移动终端时, 通过本会场内的第一移动终端将第二移动终端接入远程会议即可, 不需要将已 建立的远程会议连接断开, 因此, 避免了断开已连接的远程会议, 从而, 有效 提高了接入新的参会者的及时性, 且其他会场不具备会议终端, 也可以通过第 二移动终端接入远程会议, 同样提高了接入新的参会者的及时性。
本发明是参照根据本发明实施例的方法、设备(系统)、 和计算机程序产品 的流程图和 /或方框图来描述的。 应理解可由计算机程序指令实现流程图和 / 或方框图中的每一流程和 /或方框、 以及流程图和 /或方框图中的流程和 /或 方框的结合。 可提供这些计算机程序指令到通用计算机、 专用计算机、 嵌入式 处理机或其他可编程数据处理设备的处理器以产生一个机器, 使得通过计算机 或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流 程或多个流程和 /或方框图一个方框或多个方框中的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备 以特定方式工作的计算机可读存储器中, 使得存储在该计算机可读存储器中的 指令产生包括指令装置的制造品, 该指令装置实现在流程图一个流程或多个流 程和 /或方框图一个方框或多个方框中的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上, 使 得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处 理, 从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个 流程或多个流程和 /或方框图一个方框或多个方框中的功能的步骤。
尽管已描述了本发明的优选实施例, 但本领域内的技术人员一旦得知了基 本创造性概念, 则可对这些实施例作出另外的变更和修改。 所以, 所附权利要 求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。 离本发明实施例的精神和范围。 这样, 倘若本发明实施例的这些修改和变型属 于本发明权利要求及其等同技术的范围之内, 则本发明也意图包含这些改动和 变型在内。

Claims

权 利 要 求
1、 一种远程会议的实现方法, 其特征在于, 包括:
会议终端在远程会议建立成功后, 检测当前会场内的第一移动终端; 所述会议终端通过短距离无线通信通道向检测到的第一移动终端发送第一 拨号指示, 其中, 所述第一拨号指示携带有第二移动终端的标识, 使得所述第 一移动终端根据所述第二移动终端的标识, 建立与所述标识对应的第二移动终 端之间的音视频链路;
所述会议终端将接收到的其他会场的音视频信号和 /或获取到的当前会场 内的音视频信号进行编码, 并基于所述音视频链路通过所述第一移动终端发送 至所述第二移动终端, 及接收所述第二移动终端通过所述第一移动终端发来的 音视频信号并进行解码后播放。
2、 如权利要求 1所述的方法, 其特征在于, 检测当前会场内的第一移动终 端, 具体包括:
采用短距离无线通信方式检测当前会场内的第一移动终端。
3、 如权利要求 1或 2所述的方法, 其特征在于, 所述会议终端通过短距离 无线通信通道向检测到的第一移动终端发送第一拨号指示, 具体包括:
所述会议终端接收第三移动终端发送的第二拨号指示, 所述第二拨号指示 携带所述第二移动终端的标识, 并通过短距离无线通信通道向检测到的第一移 动终端发送携带所述第二移动终端的标识的第一拨号指示。
4、 如权利要求 1所述的方法, 其特征在于, 建立远程会议, 具体包括: 在接收到第三移动终端发送的建立指示时,通过公共交换电话网络 PSTN进行网络拨 号, 并依次输入待接入远程会议的其他会议终端的标识, 完成远程会议的建立。
5、如权利要求 1-4任一项所述的方法, 其特征在于, 令所述第一移动终端根 据所述第二移动终端的标识, 建立与所述标识对应的第二移动终端之间的音视 频链路, 包括:
令所述第一移动终端将携带有所述第二移动终端的标识的信号发送至第一 基站, 并令所述第一基站通过第二基站将所述携带有所述第二移动终端的标识 的信号发送至与所述标识对应的第二移动终端, 建立与所述第二移动终端之间 的音视频链路。
6、 如权利要求 1-5任一项所述的方法, 其特征在于, 所述会议终端将接收 到的其他会场的音视频信号和 /或获取到的当前会场内的音视频信号进行编码, 具体包括: 所述会议终端将获取到的当前会场内的音视频信号进行音视频前处理, 所 述音视频前处理包括: 自动增益控制 AGC、 自适应回声 4氏消 AEC、 自适应噪 声抑制 ANS、 动态均衡 EQ, 及去混响中的一种或任意组合;
所述会议终端将进行音视频前处理后的音视频信号与接收到的其他会场内 的音视频信号混音后进行编码。
7、 如权利要求 1-5任一项所述的方法, 其特征在于, 接收所述第二移动终 端通过所述第一移动终端发来的音视频信号并进行解码后播放, 具体包括: 接收所述第二移动终端通过所述第一移动终端发来的音视频信号, 并对接 收到的音视频信号进行解码及解码后处理, 再对解码后处理的音视频信号进行 播放, 其中, 所述解码后的处理过程包括: 丟包补偿、 线路回声抵消 LEC, 及 混音中的一种或任意组合。
8、 一种远程会议的实现装置, 其特征在于, 包括:
检测单元,用于在远程会议建立成功后,检测当前会场内的第一移动终端; 链路建立单元, 用于通过短距离无线通信通道向所述检测单元检测到的第 一移动终端发送第一拨号指示, 其中, 所述第一拨号指示携带有第二移动终端 的标识, 使得所述第一移动终端根据所述第二移动终端的标识, 建立与所述标 识对应的第二移动终端之间的音视频链路;
编解码单元, 用于将接收到的其他会场的音视频信号和 /或获取到的当前会 场内的音视频信号进行编码, 并基于所述链路建立单元建立的音视频链路通过 所述第一移动终端发送至所述第二移动终端, 及接收所述第二移动终端通过所 述第一移动终端发来的音视频信号并进行解码后播放。
9、 如权利要求 8所述的实现装置, 其特征在于, 所述检测单元具体用于: 采用短距离无线通信方式检测当前会场内的第一移动终端。
10、 如权利要求 8或 9所述的实现装置, 其特征在于, 所述链路建立单元 具体用于: 接收第三移动终端发送的第二拨号指示, 所述第二拨号指示携带所 述第二移动终端的标识, 并通过短距离无线通信通道向所述检测单元检测到的 第一移动终端发送携带所述第二移动终端的标识的第一拨号指示。
11、 如权利要求 8所述的实现装置, 其特征在于, 所述检测单元具体用于: 在接收到第三移动终端发送的建立指示时, 通过公共交换电话网络 PSTN进行网络拨号, 并依次输入待接入远程会议的其他会议终端的标识, 完成远程会议的建立。
12、如权利要求 8-11任一项所述的实现装置, 其特征在于, 所述链路建立单 元具体用于: 令所述第一移动终端将携带有所述第二移动终端的标识的信号发 送至第一基站, 并令所述第一基站通过第二基站将所述携带有所述第二移动终 端的标识的信号发送至与所述标识对应的第二移动终端, 建立与所述第二移动 终端之间的音视频链路。
13、 如权利要求 8-12任一项所述的实现装置, 其特征在于, 所述编解码单 元具体用于: 将获取到的当前会场内的音视频信号进行音视频前处理, 所述音 视频前处理包括: 自动增益控制 AGC、 自适应回声 4氏消 AEC、 自适应噪声抑 制 ANS、 动态均衡 EQ, 及去混响中的一种或任意组合; 将进行音视频前处理 后的音视频信号与接收到的其他会场内的音视频信号混音后进行编码。
14、 如权利要求 8-12任一项所述的实现装置, 其特征在于, 所述编解码单 元具体用于:接收所述第二移动终端通过所述第一移动终端发来的音视频信号, 并对接收到的音视频信号进行解码及解码后处理, 再对解码后处理的音视频信 号进行播放,其中,所述解码后的处理过程包括:丟包补偿、线路回声抵消 LEC, 及混音中的一种或任意组合。
15、 一种会议终端, 其特征在于, 包括:
信号处理器, 用于在远程会议建立成功后, 检测当前会场内的第一移动终 端, 并通过短距离无线通信通道向所述检测单元检测到的第一移动终端发送第 一拨号指示, 其中, 所述第一拨号指示携带有第二移动终端的标识, 使得所述 第一移动终端根据所述第二移动终端的标识, 建立与所述标识对应的第二移动 终端之间的音视频链路, 且将接收到的其他会场的音视频信号和 /或获取到的当 前会场内的音视频信号进行编码, 及接收所述第二移动终端通过所述第一移动 终端发来的音视频信号并进行解码;
信号收发器, 用于将编码后的其他会场的音视频信号和 /或获取到的当前会 场内的音视频信号, 基于所述信号处理器建立的音视频链路通过所述第一移动 终端发送至所述第二移动终端, 及解码后的所述第二移动终端通过所述第一移 动终端发来的音视频信号播放。
16、 如权利要求 15所述的会议终端, 其特征在于, 所述信号处理器具体用 于: 采用短距离无线通信方式检测当前会场内的第一移动终端。
17、 如权利要求 15或 16所述的会议终端, 其特征在于, 所述信号处理器 具体用于: 接收第三移动终端发送的第二拨号指示, 所述第二拨号指示携带所 述第二移动终端的标识, 并通过短距离无线通信通道向检测到的第一移动终端 发送携带所述第二移动终端的标识的第一拨号指示。
18、 如权利要求 15所述的会议终端, 其特征在于, 所述信号处理器具体用 于: 在接收到第三移动终端发送的建立指示时, 通过公共交换电话网络 PSTN进行网络拨 号, 并依次输入待接入远程会议的其他会议终端的标识, 完成远程会议的建立。
19、如权利要求 15-18任一项所述的会议终端, 其特征在于, 所述信号处理 器具体用于: 令所述第一移动终端将携带有所述第二移动终端的标识的信号发 送至第一基站, 并令所述第一基站通过第二基站将所述携带有所述第二移动终 端的标识的信号发送至与所述标识对应的第二移动终端, 建立与所述第二移动 终端之间的音视频链路。
20、 如权利要求 15-19任一项所述的会议终端, 其特征在于, 所述信号处 理器具体用于: 将获取到的当前会场内的音视频信号进行音视频前处理, 所述 音视频前处理包括: 自动增益控制 AGC、 自适应回声 4氏消 AEC、 自适应噪声 抑制 ANS、 动态均衡 EQ, 及去混响中的一种或任意组合; 将进行音视频前处 理后的音视频信号与接收到的其他会场内的音视频信号混音后进行编码。
21、 如权利要求 15-19任一项所述的会议终端, 其特征在于, 所述信号处 理器用于: 接收所述第二移动终端通过所述第一移动终端发来的音视频信号, 并对接收到的音视频信号进行解码及解码后处理, 再对解码后处理的音视频信 号进行播放,其中,所述解码后的处理过程包括:丟包补偿、线路回声抵消 LEC, 及混音中的一种或任意组合。
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