WO2023231923A1 - 一种补偿通信方法和系统 - Google Patents

一种补偿通信方法和系统 Download PDF

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Publication number
WO2023231923A1
WO2023231923A1 PCT/CN2023/096555 CN2023096555W WO2023231923A1 WO 2023231923 A1 WO2023231923 A1 WO 2023231923A1 CN 2023096555 W CN2023096555 W CN 2023096555W WO 2023231923 A1 WO2023231923 A1 WO 2023231923A1
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WO
WIPO (PCT)
Prior art keywords
link
compensation
communication
call
establish
Prior art date
Application number
PCT/CN2023/096555
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English (en)
French (fr)
Inventor
贾银元
王志峰
沈福生
Original Assignee
华为技术有限公司
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Publication of WO2023231923A1 publication Critical patent/WO2023231923A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/65—Network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/54—Arrangements for diverting calls for one subscriber to another predetermined subscriber
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/04—Terminal devices adapted for relaying to or from another terminal or user

Definitions

  • the present application relates to the field of communication technology, and in particular, to a compensation communication method and system.
  • the second device can transfer the call to a third device (such as a tablet computer, laptop computer, etc.). It is understandable that after the call is transferred, the users on both sides actually use the first device and the third device to conduct the call.
  • a third device such as a tablet computer, laptop computer, etc.
  • call data packets are transmitted between the first device and the second device through the core network, and between the second device and the third device through wireless fidelity (WiFi), (bluetooth, BT) Bluetooth, Wireless communication technologies such as data services transmit call data packets.
  • WiFi wireless fidelity
  • BT Bluetooth
  • Wireless communication technologies such as data services transmit call data packets.
  • call data packet loss, jitter, delay, etc. may occur between the second device and the third device, resulting in intermittent and silent voice during the call. , video freezes, and even call interruptions, etc., resulting in poor user experience.
  • the present application provides a compensation communication method and system to solve the problem of poor call quality between electronic devices in the prior art.
  • embodiments of the present application provide a compensation communication method, which is applied to a first device, a second device, and a third device.
  • the first device and the second device are connected through a first link
  • the second device and the third device are connected through a first link.
  • Connected through the second link the first device and the third device communicate through the first link and the second link.
  • the method includes: after the first device, the second device or the third device detects the first preset condition, the first device and the third device establish a compensation link; the first device and the third device pass the first link , communicate through the compensation link while communicating on the second link; or, the first device and the third device disconnect the first link and/or the second link, and communicate through the compensation link.
  • the first device and the third device can establish another compensation link in response to the first preset condition, And by compensating the communication between the first device and the third device through the compensation link, the communication quality of the first device and the third device can be improved.
  • the first device and the third device communicate indirectly through the second device.
  • the first device can directly establish a compensation communication link with the third device to connect the first device and the third device.
  • the call data packets are transmitted between the first device and the third device, thereby improving the call quality of the first device and the third device and improving the user experience.
  • the first preset condition includes:
  • the first control is used to control the third device to establish a compensation link with the first device. and / or,
  • Get preset touch gestures air control handheld or voice control commands. and / or,
  • the second device transfers communication services to the third device. and / or,
  • the communication quality of the first link or the second link is lower than the threshold. and / or,
  • the first device, the second device or the third device is about to enter/has entered a specific area. and / or,
  • the first device, the second device, or the third device has enabled the automatic establishment function of the compensation link.
  • the first device, the second device, or the third device can all be based on at least one of factors such as user instructions, communication quality, the area where the electronic device is located, and the functional status of the electronic device.
  • Establish a compensation link and the conditions for establishing the compensation link are flexible.
  • the first device or the second device may notify the third device to start establishing a compensation link.
  • the third device starts to establish the compensation link on its own.
  • the first link includes: a core network link, and/or a near field communication link established based on wireless fidelity WiFi or Bluetooth, and/or a link established based on WiFi, cellular data, or satellite communication.
  • the second link and the compensation link include: a near-field communication link established based on WiFi or Bluetooth, and/or a far-field communication link established based on WiFi, cellular data, or satellite communication.
  • the third device establishing a compensation link with the first device includes: the third device and the first device negotiate to establish a compensation link through the first link and the second link; or, the third device and the third device negotiate to establish a compensation link.
  • a device negotiates a compensation link through an addressing server.
  • the third device and the first device negotiate to establish a compensation link through the first link and the second link, including: the third device sends a message to the first device through the second link and the first link.
  • the compensation link establishment request carries the communication address of the third device; the first device sends a compensation link establishment response to the third device through the first link and the second link, and the compensation link establishment response carries The communication address of the first device; the first device and the third device establish a compensation link based on the communication address of the other party.
  • the first device and the third device negotiate to establish a compensation link through existing communication links without relying on other communication links.
  • the negotiation process is simple and convenient.
  • the third device sends a compensation link establishment request to the first device through the second link and the first link, including: the third device sends a compensation link establishment request to the second device through the second link. request; when the first link is a core network link, the second device writes the compensation link establishment request in the real-time transmission control protocol RTCP message/real-time transmission protocol RTP data packet and sends it to the first device; or, when the second device When the first link is not a core network link, the second device sends a compensation link establishment request to the first device in a customized or preset manner.
  • RTCP messages and RTP data packets are existing content in the core network link.
  • the second device sends a compensation link establishment request to the first device through RTCP messages/RTP data packets, there is no need to define other data packets. , the transmission process is simple and convenient.
  • the first device sends a compensation link establishment response to the third device through the first link and the second link, including: when the first link is a core network link, the first device sends the compensation link establishment response.
  • the link establishment response is written in the RTCP message/RTP packet and sent to the second device; or, when the first link is not a core network link, the first device uses a customized or preset method to send compensation to the second device.
  • Link establishment response; the second device sends to the third device through the second link Compensation link establishment response.
  • RTCP messages and RTP data packets are existing content in the core network link.
  • the first device sends a compensation link establishment response to the second device through RTCP messages/RTP data packets, there is no need to define other data packets. , the transmission process is simple and convenient.
  • the third device and the first device negotiate to establish a compensation link through the addressing server, including: the first device based on the unique identification information of the second device stored in the addressing server and the communication address of the third device.
  • the corresponding relationship determines the communication address of the third device; the third device determines the communication address of the first device according to the corresponding relationship between the unique identification information of the first device and the communication address stored in the addressing server; the first device and the third device Establish a compensation link based on the communication address of the other party.
  • the first device and the third device negotiate to establish a compensation link through the addressing server.
  • the negotiation process does not occupy the original communication links of the first device and the third device (i.e., the first link and the second link). ), will not affect the transmission of data on the original communication link.
  • the first device and the third device communicate through the compensation link while communicating through the first link and the second link, including: the first device and the third device communicate through the first link and the second link.
  • the second link transmits the first part of the communication data packet
  • the compensation link transmits the second part of the communication data packet; the sum of the first part and the second part includes all communication data packets to be transmitted; wherein the first part and the second part are completely The same, or completely different, or partially the same.
  • the loss of communication data packets during the communication process between the first device and the third device can be reduced.
  • the transmission pressure of communication data packets on the original call link (ie, the first link and the second link) of the first device and the third device can be reduced. , improve call quality.
  • the third device is an extension of the second device, or the second device is a signal relay device of the third device.
  • the compensation communication method provided by the embodiment of the present application is applicable to the scenario of communication extension (such as call extension), and is also suitable to the scenario of signal relay communication.
  • embodiments of the present application provide a compensation communication system, including a first device, a second device, and a third device.
  • the first device and the second device are connected through a first link, and the second device and the third device are connected through a first link.
  • the second link is connected; the first device and the third device communicate through the first link and the second link.
  • the first device is configured to perform the method performed by the first device in the above-mentioned first aspect.
  • the second device is configured to perform the method performed by the second device in the above-mentioned first aspect.
  • the third device is configured to perform the method performed by the third device in the above first aspect.
  • embodiments of the present application provide a compensation communication method, which is applied to a first device, a second device, a third device and a fourth device.
  • the first device and the second device are connected through a first link, and the second device
  • the third device is connected through the second link, the first device and the fourth device are connected through the fourth link, and the fourth device and the third device communicate through the fourth link, the first link and the second link.
  • the method includes: any one of the first device, the second device, the third device and the fourth device controls the third device to establish a compensation link with the fourth device after detecting the first preset condition; the fourth device communicate with the third device through the compensation link while communicating through the fourth link, the first link and the second link; or the fourth device and the third device disconnect the fourth link and the first link and at least one of the second links and communicates through the compensating link.
  • the fourth device and the third device can establish another link in response to the first preset condition. Compensating the link, and compensating the communication between the fourth device and the third device through the compensation link, can improve the communication quality of the fourth device and the third device.
  • the first device transfers the call to a fourth device
  • the second device transfers the call to a third device
  • the fourth device and the third device communicate through the third device.
  • One device communicates indirectly with a second device.
  • the fourth device in response to the first preset condition, can directly establish a compensation communication link with the third device to transmit call data packets between the fourth device and the third device, thereby improving the performance of the fourth device.
  • the quality of calls with third devices improves user experience.
  • the method further includes: the first device and the third device establishing a fifth link, and the fourth device and the third device further communicate through the fourth link and the fifth link.
  • the method further includes: the second device and the fourth device establishing a sixth link, and the fourth device and the third device further communicate through the second link and the sixth link.
  • embodiments of the present application provide a compensation communication system, including a first device, a second device, a third device and a fourth device.
  • the first device and the second device are connected through a first link, and the second device and The third device is connected through the second link, the first device and the fourth device are connected through the fourth link; the fourth device and the third device communicate through the fourth link, the first link and the second link.
  • the first device is configured to perform the method performed by the first device in the above third aspect.
  • the second device is configured to perform the method performed by the second device in the above third aspect.
  • the third device is configured to perform the method performed by the third device in the above third aspect.
  • the fourth device is configured to perform the method performed by the fourth device in the above third aspect.
  • embodiments of the present application provide a compensation communication method, which is applied to a first device, a second device, and a third device.
  • the first device and the second device are connected and communicate through a first link.
  • the method includes: after the first device/second device detects the second preset condition, the first device and the second device indirectly establish a compensation link through the third device, and the compensation link includes the second device and the third device. a second link between, and a third link between the first device and the third device; the first device and the second device communicate through the compensation link while communicating through the first link; or, A device and a second device disconnect the first link and communicate over the compensating link.
  • the first device and the second device can indirectly establish a compensation link through the third device in response to the second preset condition. , and by compensating the communication between the first device and the second device through the compensation link, the communication quality of the first device and the second device can be improved.
  • the second preset condition includes:
  • An operation on the second control is detected, and the second control is used to control the first device to establish a compensation link with the second device. and / or,
  • Get preset touch gestures air control handheld or voice control commands. and / or,
  • the communication quality of the first link is below the threshold. and / or,
  • the first device/second device is about to enter/has entered a specific area. and / or,
  • the first device/second device has enabled the automatic establishment function of the compensation link.
  • the first device and the third device can establish a compensation link based on at least one of factors such as user instructions, communication quality, the area where the electronic device is located, and the functional equipment status of the electronic device.
  • the compensation link establishment conditions are flexible.
  • the first link includes: a core network link, and/or a near field communication link established based on wireless fidelity WiFi or Bluetooth, and/or a link established based on WiFi, cellular data, or satellite communication.
  • the second link and the third link include: a near-field communication link established based on WiFi or Bluetooth, and/or a far-field communication link established based on WiFi, cellular data, or satellite communication.
  • the first device and the second device indirectly establish a compensation link through the third device, including: the second device discovers and connects to the third device through near-field broadcasting or far-field broadcasting to form a second link; The third device sends the communication address of the third device to the first device through the second link and the first link; the first device sends the communication address of the first device to the third device through the first link and the second link; The first device and the third device establish a third link according to the communication address of the other party, and the link group composed of the second link and the third link is a compensation link.
  • the second device discovers and connects to the third device through near-field broadcasting to form a second link, including: the second device uses Bluetooth broadcasting, WiFi broadcasting, ultra-bandwidth UWB broadcasting, device-to-device D2D broadcasting, or car-to-car broadcasting.
  • Networked V2X broadcast discovers and connects third devices.
  • the second device discovers and connects to the third device through far-field broadcast, including: the second device sends a far-field broadcast message through the server, discovers and connects to the third device, and forms a second link.
  • the second device sends a far-field broadcast message through the transit device, discovers and connects to the third device, and forms a second link.
  • the second device uses the server and the transit device at the same time to send a far-field broadcast message, discover and connect to the third device, and form a second link.
  • the second device directly connects to the third device according to the address information of the third device to form a second link.
  • the first device and the second device communicate through the compensation link while communicating through the first link, including: the first device and the second device transmit a first part of the communication data packet through the first link. , transmitting the second part of the communication data packet through the compensation link; the sum of the first part and the second part includes all communication data packets to be transmitted; wherein the first part and the second part are exactly the same, or completely different, or partially the same.
  • the loss of communication data packets during the communication process between the first device and the second device can be reduced.
  • the transmission pressure of communication data packets on the original communication link (ie, the first link) of the first device and the second device can be reduced and the call quality can be improved.
  • embodiments of the present application provide a compensation communication system, including a first device, a second device, and a third device.
  • the first device and the second device are connected and communicate through a first link.
  • the first device is configured to perform the method performed by the first device in the fifth aspect above.
  • the second device is configured to perform the method performed by the second device in the above fifth aspect.
  • the third device is configured to perform the method performed by the third device in the above fifth aspect.
  • embodiments of the present application provide a compensation communication method, which is applied to a first device, a second device, a third device and a fourth device.
  • the first device and the second device are connected and communicate through a first link.
  • the method includes: after the first device/second device detects the second preset condition, the first device and the second device establish a compensation link; the compensation link includes: a third device between the first device and the fourth device.
  • the third link, the third device between the fourth link, the fourth device and the third device A second link between the device and the second device.
  • the first device and the second device communicate through the compensation link while communicating through the first link; or, the first device and the second device disconnect the first link and communicate through the compensation link.
  • the method further includes: the first device and the third device establishing a fifth link, and the first device and the second device further communicate through the second link and the fifth link.
  • the method further includes: the second device and the fourth device establishing a sixth link, and the first device and the second device also communicate through the fourth link and the sixth link.
  • embodiments of the present application provide a compensation communication system, including a first device, a second device, a third device and a fourth device.
  • the first device and the second device are connected and communicate through a first link.
  • the first device is configured to perform the method performed by the first device in the seventh aspect above.
  • the second device is configured to perform the method performed by the second device in the above seventh aspect.
  • the third device is configured to perform the method performed by the third device in the seventh aspect.
  • the fourth device is configured to perform the method performed by the fourth device in the seventh aspect above.
  • Figure 1 is a schematic diagram of a cellular call scenario provided by an embodiment of the present application.
  • Figure 2A is a schematic connection diagram of the main link in the first link provided by the application embodiment
  • Figure 2B is a schematic connection diagram of the near field communication link in the first link provided by the application embodiment
  • Figure 2C is a schematic connection diagram of the far-field communication link in the first link provided by the application embodiment
  • Figure 3A is a schematic connection diagram of the near field communication link in the second link provided by the application embodiment
  • Figure 3B is a schematic connection diagram of the far-field communication link in the second link provided by the application embodiment
  • Figure 4A is a schematic diagram of a system to which the communication compensation method provided by an embodiment of the present application is applicable;
  • Figure 4B is a schematic diagram of a communication compensation setting interface provided by an embodiment of the present application.
  • Figure 5 is a schematic connection diagram of the third link provided by an embodiment of the present application.
  • Figure 6 is a schematic flow chart of a communication compensation method provided by an embodiment of the present application.
  • Figure 7 is a schematic diagram of data transmission between the second device and the third device provided by an embodiment of the present application.
  • Figure 8 is a schematic diagram of a control scenario for establishing a compensation link provided by an embodiment of the present application.
  • Figures 9A to 9C are schematic diagrams of data packet allocation when call data packets are transmitted on path 1 and path 2 according to different embodiments of the present application;
  • Figure 10 is a flow chart of link establishment between different devices provided by an embodiment of the present application.
  • Figure 11 is a schematic diagram of the establishment process of the third link provided by an embodiment of the present application.
  • Figure 12A is a schematic diagram of an SDES message provided by an embodiment of the present application.
  • Figure 12B is a schematic diagram of a CNAME source description item provided by an embodiment of the present application.
  • Figure 13 is a schematic diagram of the establishment process of the third link provided by another embodiment of the present application.
  • Figure 14 is a schematic diagram of the establishment process of the third link provided by another embodiment of the present application.
  • Figures 15A to 15D are schematic diagrams of application scenarios of compensation links provided by different embodiments of the present application.
  • Figure 16 is a schematic diagram of connections between devices in a call transfer scenario provided by an embodiment of the present application.
  • Figure 17 is a schematic diagram of the compensation link between the fourth device and the third device provided by an embodiment of the present application.
  • Figure 18 is a schematic diagram of the establishment process of a compensation link provided by an embodiment of the present application.
  • Figure 19 is a schematic diagram of a compensation communication scenario provided by other embodiments of the present application.
  • Figure 20A is a schematic structural diagram of a communication compensation system provided by an embodiment of the present application.
  • Figure 20B is a schematic diagram of a communication compensation setting interface provided by another embodiment of the present application.
  • Figure 21 is a schematic diagram of a control scenario for establishing a compensation link provided by another embodiment of the present application.
  • Figure 22 is a schematic diagram of a communication scenario provided by an embodiment of the present application.
  • Figure 23 is a schematic flow chart of a communication compensation method provided by an embodiment of the present application.
  • Figure 24 is a schematic diagram of device discovery and connection provided by an embodiment of the present application.
  • Figure 25 is a schematic diagram of device discovery and connection provided by another embodiment of the present application.
  • Figure 26 is a flow chart of the third link establishment process provided by an embodiment of the present application.
  • FIGS. 27A to 27E are schematic diagrams of application scenarios of compensation links provided by different embodiments of the present application.
  • Figure 28 is a schematic diagram of a multi-device collaborative compensation call provided by another embodiment of the present application.
  • Figure 29 is a schematic diagram of the establishment process of the third link provided by an embodiment of the present application.
  • Figure 30 is a schematic diagram of a compensation communication scenario provided by other embodiments of the present application.
  • first and second are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, features defined as “first” and “second” may explicitly or implicitly include one or more of these features. In the description of this embodiment, unless otherwise specified, "plurality" means two or more.
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD LTE time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX global interoperability for microwave access
  • 5G fifth generation
  • 5G new wireless
  • GSM global system for mobile communications
  • CDMA code division multiple access
  • time division-synchronous CDMA time division-synchronous CDMA, TD-SCDMA
  • circuit Switched Circuit Switched
  • CS circuit Switched
  • long-term evolution voice bearer voice over long-term evolution, VoLTE
  • new air interface voice bearer voice over new radio, VoNR
  • long-term evolution video Bearer video over long-term evolution, ViLTE
  • new air interface video bearer video over new radio, ViNR
  • evolved packet system fallback EPS fallback
  • CS fallback CS fallback
  • OTT calls include OTT video calls, OTT voice calls, etc.
  • technical solution provided by this embodiment can also be extended to other non-call data transmission scenarios, such as file upload/download scenarios, short message (Message) sending and receiving scenarios, MMS sending and receiving scenarios, email sending and receiving scenarios, game scenarios, and audio streaming. And/or video stream transmission scenarios (such as screen sharing scenarios), etc., this embodiment does not limit this.
  • Figure 1 is a schematic diagram of a cellular call scenario provided by an embodiment of the present application.
  • the electronic devices involved in this scenario include first devices (such as mobile phone 1), second devices (such as mobile phone 2) and third devices (such as tablets, laptops, smart speakers, smart watches, mobile phones 3, etc. ).
  • the first device and the second device are both connected to the core network, and the second device and the third device are wirelessly connected.
  • the first device can call the second device through the core network to conduct a cellular call with the second device.
  • the second device can transfer the incoming call to the third device for incoming call reminder and answering according to user operation or preset rules; it can also connect the call locally first, and then transfer the call to the third device according to user operation.
  • Three devices It can be understood that when the incoming call/conversation is transferred to the third device, the electronic devices actually used by both users during the call are the first device and the third device.
  • the communication link between the first device and the second device is called a first link.
  • the first link includes at least one main link and may also include at least one auxiliary link (see Figure 1 ).
  • the main link is the core network link (see Figure 2A), and the auxiliary link can be a near field communication link or a far field communication link.
  • the near field communication link between the first device and the second device may be a Bluetooth link, a WiFi link (including a WiFi router link and a WiFi P2P link), etc.
  • the Bluetooth link can be a traditional Bluetooth link or a low-power Bluetooth (bluetooth low energy, BLE) link.
  • the first device and the second device are connected to the same local area network (LAN), or in other words, the first device and the second device are connected to the same router.
  • the first device and the second device can be connected to each other in a peer-to-peer (P2P) or device-to-device (D2D) manner to communicate directly.
  • P2P peer-to-peer
  • D2D device-to-device
  • the first device and the second device may also be indirectly connected through a router, and the communication signals may be relayed through the router.
  • the far-field communication link may be established based on wireless communication technologies such as WiFi, cellular data, and satellite communications.
  • the first device and the second device can access the communication network through access network devices such as base stations or routers, and the access network device used by the first device can be the same as the second device. Can be different from the second device.
  • the first device accesses the communication network through the base station
  • the second device accesses the communication network through the router.
  • both the first device and the second device access the communication network through a router.
  • the first device and the second device may communicate directly or indirectly through a server or satellite.
  • the auxiliary link between the first device (ie UE1) and the second device (ie UE2) can be the following link Any of:
  • Link 1-1 UE1—UE1 side cellular base station—server/satellite—UE2 side cellular base station—UE2.
  • Link 1-2 UE1—UE1 side cellular base station—server/satellite—UE2 side router—UE2.
  • Link 1-3 UE1—UE1 side router—server/satellite—UE2 side cellular base station—UE2.
  • Link 1-4 UE1—UE1 side router—server/satellite—UE2 side router—UE2.
  • Link 1-5 UE1—UE1 side cellular base station—UE2 side cellular base station—UE2.
  • Link 1-6 UE1—UE1 side cellular base station—UE2 side router—UE2.
  • Link 1-7 UE1—UE1 side router—UE2 side cellular base station—UE2.
  • Link 1-8 UE1—UE1 side router—UE2 side router—UE2.
  • the auxiliary link between the first device and the second device may also be any of the following links:
  • Link 1-9 UE1—satellite—UE2 side cellular base station/UE2 side router—UE2.
  • Link 1-10 UE1—UE1 side cellular base station—satellite—UE2.
  • Link 1-11 UE1-Satellite-UE2.
  • Link 1-12 UE1—satellite—server—UE2 side cellular base station/UE2 side router—UE2.
  • the wireless communication link between the second device and the third device is called the second link.
  • the second link includes at least one main link and may also include at least one auxiliary link (see Figure 1).
  • the main link and the auxiliary link in the second link may be near field communication links or far field communication links.
  • the near field communication link between the second device and the third device may be a Bluetooth link or a WiFi link (including a WiFi router link and a WiFi P2P link).
  • the Bluetooth link can be a traditional Bluetooth link or a low-power Bluetooth link.
  • the WiFi link the second device and the third device are connected to the same local area network, or in other words, the second device and the third device are connected to the same router.
  • the WiFi link the second device and the third device can be connected to each other through P2P or D2D to communicate directly.
  • the second device and the third device may also be indirectly connected through a router, and the communication signals may be relayed through the router.
  • the second device and the third device can access the communication network through access network devices such as base stations or routers, and the access network used by the second device
  • the network device may be the same as the third device, or may be different from the third device.
  • the second device accesses the communication network through the base station
  • the third device accesses the communication network through the router.
  • both the second device and the third device access the communication network through a router.
  • the second device and the third device can communicate directly or indirectly through a server or satellite.
  • the auxiliary link between the second device (ie UE2) and the third device (ie UE3) may be the following link Any of:
  • Link 2-1 UE2—UE2 side cellular base station—server/satellite—UE3 side cellular base station—UE3.
  • Link 2-2 UE2—UE2 side cellular base station—server/satellite—UE3 side router—UE3.
  • Link 2-3 UE2—UE2 side router—server/satellite—UE3 side cellular base station—UE3.
  • Link 2-4 UE2—UE2 side router—server/satellite—UE3 side router—UE3.
  • Link 2-5 UE2—UE2 side cellular base station—UE3 side cellular base station—UE3.
  • Link 2-6 UE2—UE2 side cellular base station—UE3 side router—UE3.
  • Link 2-7 UE2—UE2 side router—UE3 side cellular base station—UE3.
  • Link 2-8 UE2—UE2 side router—UE3 side router—UE3.
  • the auxiliary link between the second device and the third device can also be any of the following links:
  • Link 2-9 UE2—satellite—UE3 side cellular base station/UE3 side router—UE3.
  • Link 2-10 UE2—UE2 side cellular base station—satellite—UE3.
  • Link 2-12 UE2—satellite—server—UE3 side cellular base station/UE3 side router—UE3.
  • the communication quality of the second link may be poor due to factors such as the distance between the second device and the third device, the quality of the wireless network, and other factors.
  • the second link is a Bluetooth link
  • the communication quality of the Bluetooth link will gradually decrease.
  • the second link is a WiFi link
  • the WiFi network quality decreases
  • the communication quality of the WiFi link will also decrease.
  • the second device and/or the third device in the second link access the communication network through the base station, the cellular signals transmitted by the base station may be blocked due to poor base station distribution, mutual interference of multiple base stations, or building obstruction.
  • the electronic device is far away from the base station, etc., resulting in weak cellular signal strength received by the second device and/or the third device, or even no cellular signal received, resulting in poor second link communication quality.
  • the call data packets between the second device and the third device may suffer from packet loss, jitter, delay, etc., resulting in voice interruptions, Problems such as silence, video freezes, and even call interruptions create a poor user experience.
  • embodiments of the present application provide a communication compensation method for improving the communication effect of the first device and the third device and improving the user experience during the indirect communication between the first device and the third device through the second device.
  • FIG. 4A is a schematic diagram of a system to which the communication compensation method provided by an embodiment of the present application is applicable.
  • the system includes a first device, a second device and a third device.
  • the first device and the second device are connected through a first link
  • the second device and the third device are connected through a second link
  • the first device and the third device are connected through a third link.
  • the third device responds to a preset user operation (see the description below for details), or in When the call quality between the first device and the second device is poor, the third device establishes a compensation communication link (ie, the third link) with the first device to compensate for the call between the first device and the third device.
  • a compensation communication link ie, the third link
  • the third device is provided with a "communication compensation" setting interface.
  • the user can set the device assisted by the third device (referred to as the target assisting device).
  • the target assisting device It may be the second device in the embodiment of this application.
  • users can also set the type of assistance service.
  • the types of assistance services include audio and video calls, file transfer, screen sharing, etc.
  • the third link is usually a far-field communication link.
  • the first device and the third device can access the communication network through access network devices such as base stations or routers, and the access network device used by the first device can be the same as that of the third device. Can be different from the third device.
  • the first device accesses the communication network through the base station
  • the third device accesses the communication network through the router.
  • both the first device and the third device access the communication network through a router.
  • the first device and the third device may communicate directly, or may communicate indirectly through a server or satellite.
  • the auxiliary link between the first device (ie UE1) and the third device (ie UE3) may be the following link Any of:
  • Link 3-1 UE1—UE1 side cellular base station—server/satellite—UE3 side cellular base station—UE3.
  • Link 3-2 UE1—UE1 side cellular base station—server/satellite—UE3 side router—UE3.
  • Link 3-3 UE1—UE1 side router—server/satellite—UE3 side cellular base station—UE3.
  • Link 3-4 UE1—UE1 side router—server/satellite—UE3 side router—UE3.
  • Link 3-5 UE1—UE1 side cellular base station—UE3 side cellular base station—UE3.
  • Link 3-6 UE1—UE1 side cellular base station—UE3 side router—UE3.
  • Link 3-7 UE1—UE1 side router—UE3 side cellular base station—UE3.
  • Link 3-8 UE1—UE1 side router—UE3 side router—UE3.
  • the auxiliary link between the first device and the third device may also be any of the following links:
  • Link 3-9 UE1—satellite—UE3 side cellular base station/UE3 side router—UE3.
  • Link 3-10 UE1—UE1 side cellular base station—satellite—UE3.
  • Link 3-12 UE1—satellite—server—UE3 side cellular base station/UE3 side router—UE3.
  • the electronic device when the electronic device (which can be a first device, a second device or a third device) has two subscriber identity module (SIM) cards, it connects through the base station.
  • SIM subscriber identity module
  • the SIM card may be a physical SIM card, an embedded SIM (embedded-SIM, e-SIM) card, a virtual SIM card, etc.
  • the first device and the second device not only need to support cellular communication functions, but also need to support wireless communication functions.
  • the third device needs to support wireless communication functions, and it may or may not support cellular communication functions.
  • the electronic device supporting the cellular communication function can be understood as the electronic device supporting access to the core network, or that the electronic device is equipped with a subscriber identity module (SIM) card.
  • SIM subscriber identity module
  • the fact that the electronic device supports wireless communication functions can be understood to mean that the electronic device supports at least one of wireless communication technologies such as WiFi, Bluetooth, and cellular data.
  • the first device, the second device and the third device may be mobile phones, laptop computers, desktop computers, smart TVs, wearable devices (such as smart watches), vehicle-mounted devices, smart home devices (such as smart speakers), augmented reality (AR)/virtual reality (VR) devices, ultra-mobile personal computers (UMPC), netbooks, personal digital assistants (personal digital assistant, PDA) , headsets and other terminal equipment.
  • wearable devices such as smart watches
  • vehicle-mounted devices such as smart speakers
  • smart home devices such as smart speakers
  • AR augmented reality
  • VR virtual reality
  • UPC ultra-mobile personal computers
  • netbooks personal digital assistants
  • PDA personal digital assistant
  • the original call link ie, the first link and the second link
  • the original call link ie, the first link and the second link
  • the original call link can be compensated. channel
  • Improve user experience by solving problems such as pauses and even call interruptions.
  • the following is an exemplary description of the specific process of establishing a compensation call between the first device and the third device.
  • Figure 6 is a schematic flow chart of a communication compensation method provided by an embodiment of the present application, involving the process of establishing a compensation call between the first device and the third device.
  • the first device calls the second device through the core network. After the incoming call is answered by the second device or other device (such as a third device), the first link between the first device and the second device is established. success.
  • RTP real-time transport protocol
  • RTCP real-time control protocol
  • an electronic device can periodically communicate to other participants in a session (e.g. The call peer, core network equipment, etc.) sends RTCP messages to feedback the current call quality.
  • the content carried by the RTCP message can be determined according to the pre-configured configuration. For example, it can carry the number of data packets sent by the terminal, the number of lost data packets, or the jitter condition of the data packets.
  • the RTCP message may also include other parameters required for the session. Therefore, the information transmitted on the first link includes call data packets in RTP format and RTCP messages.
  • the first device and the second device can usually establish the primary link first, and then negotiate to establish the auxiliary link based on the primary link.
  • the first device and the second device can establish the auxiliary link first and then the main link. In this case, the establishment of the auxiliary link does not depend on the main link.
  • the first device and the second device can establish the auxiliary link through Establish an auxiliary link through server addressing (see the description below for details).
  • S602 The second device and the third device establish a second link.
  • the second link is successfully established.
  • the second device answers the incoming call locally and transfers the call to the third device during the call.
  • the second device and the third device usually establish the primary link first, and then negotiate to establish the auxiliary link based on the primary link. It should be noted that in this embodiment, any link in the first link may be called a primary link, and the remaining links may be called auxiliary links.
  • S603 The first device and the third device transmit call data packets through the first link and the second link.
  • the first device first sends the call data packet of user 1 to the second device through the first link. device, and then the second device sends it to the third device through the second link.
  • the third device first sends the call data packet of user 2 to the second device through the second link, and then the second device sends it to the first device through the first link, thereby realizing the communication between the first device and Calls from a third device.
  • the first device sends user 1's call data packet to the third device
  • the first link includes a main link and at least one auxiliary link
  • the call data packets can be deduplicated and sorted locally first, and then the call data packets can be sent to the third device through the second link.
  • the second device can directly send it to the third device through the second link, and the third device can perform deduplication and sorting.
  • the third device usually needs to deduplicate and sort the call data packets after receiving them through the second link.
  • the third device sends user 2's call data packet to the first device
  • the second link includes a main link and at least one auxiliary link
  • the second device receives the call data through the second link.
  • the call data packets can be deduplicated and sorted locally, and then sent to the first device through the first link.
  • the second device can also directly send the call data packet to the first device through the first link, and the first device can perform deduplication and sorting. If the first link includes a primary link and at least one auxiliary link, after receiving the call data packet through the first link, the first device needs to perform deduplication and sorting processing.
  • the second device may deduplicate and exclude the call data packets, or may not deduplicate and sort them. This embodiment does not limit this.
  • the second device and the third device both include an application processor (application processor, AP), a baseband processor (baseband processor, BP), a Bluetooth module and Audio peripherals (such as microphones and speakers).
  • the third device is an electronic device such as a smart speaker, a smart TV, or a tablet computer that does not support cellular communication, it may not include a baseband processor.
  • the application processor includes a dial module (Dial), a radio interface layer (RIL) and a long-term evolution voice (voice over long-term evolution, VoLTE) call module.
  • the VoLTE call module includes audio Peer-to-peer (vioce peer, Vpeer) module.
  • the baseband processor includes the audio module (Speech), IMS protocol stack and packet data convergence protocol (PDCP) module.
  • call data packets are transmitted between the network side device and the second device based on the real-time transport protocol (RTP).
  • RTP real-time transport protocol
  • the baseband processor of the second device After receiving the downlink call data packet sent by the network side device, the baseband processor of the second device sends it to the PDCP module for processing.
  • the PDCP module sends the processed downlink call data packet to the IMS protocol stack of the second device.
  • the IMS protocol stack of the second device deduplicates and sorts the downlink call data packets, it can send them to the Vpeer of the third device through the Vpeer of the second device, or send them to the Vpeer of the third device through the RIL of the second device.
  • RIL After receiving the downlink call data packet, the third device deduplicates and sorts it, and then processes the downlink call data packet into a pulse code modulation (PCM) code stream through the audio module, and sends it to the audio peripheral for processing.
  • PCM pulse code modulation
  • the audio peripheral of the third device After the audio peripheral of the third device collects the upstream PCM code stream, it processes it into a specific form (such as RTP, adaptive multi-rate (AMR), enhanced voice services) through the audio module , EVS), Opus, etc.) uplink call data packets. Subsequently, the Vpeer of the third device sends the uplink call data packet to the Vpeer of the second device, or the RIL of the third device sends the uplink call data packet to the RIL of the second device. After receiving the uplink call data packet, the second device sends it to the network side device through the baseband processor.
  • a specific form such as RTP, adaptive multi-rate (AMR), enhanced voice services
  • EVS audio module
  • Opus etc.
  • Vpeer is used to process and transmit voice data.
  • RIL can also transmit other data such as signaling.
  • the second device and the third device can establish a Socket connection based on the IP protocol to transmit data, or they can call Bluetooth or WiFi to transmit data.
  • the third device may not have decoding functions such as RTP, AMR, EVS, etc., so the second device can parse the downlink call data packet in the above form (such as RTP form) into a PCM code stream and provide it to the PCM
  • the code stream is sent to a third device for playback after adding a sequence number (SN).
  • the third device can add sequence numbers to different segments of the PCM code stream, and send the PCM code stream to the second device.
  • the second device converts the PCM code stream into an uplink call data packet in the above format (such as RTP format) according to the sequence number, and sends it to the first device through the network side device (such as a base station).
  • the first device or the second device may also notify the third device to establish a third link with the first device, which is not limited in this embodiment.
  • the first preset condition is that the user operates a first control on the electronic device.
  • the electronic device may be a first device, a second device or a third device.
  • the first control is used to control the third device to establish a connection with the first device to compensate for the call between the first device and the third device.
  • the first control may be a "call compensation" control.
  • the first preset condition may be receiving a preset touch gesture, holding via air control, or a voice control instruction, etc.
  • the first preset condition may be that the second device transfers the call to the third device. In other words, after the third device answers the call transferred by the second device, it immediately establishes the third link.
  • the first preset condition is that the call quality of the second link is lower than a threshold.
  • the packet loss rate of the first link and/or the second link is higher than a packet loss rate threshold (for example, 10%); and/or the signal-to-noise ratio of the first link and/or the second link is lower than The signal-to-noise ratio threshold (for example, 10 decibels); and/or the delay of the call data packet of the first link and/or the second link is higher than the delay threshold (for example, 120 ms), etc.
  • a threshold for example, 10%
  • the signal-to-noise ratio threshold for example, 10 decibels
  • the delay of the call data packet of the first link and/or the second link is higher than the delay threshold (for example, 120 ms), etc.
  • the first preset condition may be that the electronic device enters a specific area (such as accessing a cell with poor communication quality, etc.), or is about to enter the specific area.
  • the electronic device may be a first device, a second device or a third device.
  • the user can control the establishment of the compensation link based on power consumption or tariff considerations.
  • the second preset condition may enable the automatic establishment function of the compensation link for the electronic device.
  • the first device and the second device can reduce the transmission frequency of call data packets on the first link, or even release the first link, thereby saving the power consumption and power of the first device and the second device.
  • the electronic device may be a first device, a second device or a third device.
  • the third link may include only one main link, or may include at least one auxiliary link in addition to the main link.
  • the first device and the third device can usually establish the primary link first, and then negotiate based on the primary link, server addressing, near-field discovery, etc. Establish a secondary link.
  • any link in the third link may be called a primary link, and the remaining links may be called auxiliary links.
  • S605 The first device and the third device use the first link and the second link to transmit the call data packet and use the third link to transmit the call data packet.
  • the first device and the third device transmit call data packets through two paths, and one path is the transmission path corresponding to the link group composed of the first link and the second link ( It can be called path 1), and the other path is the transmission path corresponding to the third link (which can be called path 2).
  • the third device plays the audio and video of user 1.
  • the third device collects the call data packet of user 2
  • the first device deduplicates and sorts the two call data packets, Play user 2's audio and video.
  • the sending end can allocate the call data packets between Path 1 and Path 2 through any one of the following methods 1 to 3, thereby sending the call data packets to the receiving end.
  • the third device is the receiving end; when the third device is the sending end, the first device is the receiving end.
  • Method 1 Referring to Figure 9A, after the sender generates call data packets, it copies all of them and transmits all call data packets simultaneously through path 1 and path 2 to reduce the number of missing call data packets at the receiving end. It can be understood that in method 1, the call data packets transmitted in path 1 and path 2 are all the same.
  • Method 2 Refer to Figure 9B.
  • the sender can reduce the number of call data packets allocated to path 1, and compensate and send the missing call data packets of path 1 through path 2 to reduce the number of call data packets on path 1.
  • Data transmission pressure For example, path 1 discards 1 call packet for every 4 call packets sent and compensates through path 2
  • the call data packet is used to reduce the data transmission pressure on path 1. It can be understood that in method 2, the call data packets transmitted in path 1 and path 2 are completely different.
  • the first device and the third device may release path 1 and transmit through path 2. All call data packets.
  • the first device and the third device can also maintain the existence of path 1, but do not use path 1 to transmit call data packets, but transmit all call data packets through path 2.
  • Method 3 As shown in Figure 9C, when the main link is congested, the sender can copy part of the call data packets in path 1 and transmit them through path 2, and at the same time reduce the number of call data packets in path 1 to reduce the number of call data packets in path 1. Data transmission pressure. It can be understood that in mode 3, the call data packets transmitted in path 1 and path 2 are only partly the same.
  • the sum of all call data packets transmitted by path 1 and all call data packets transmitted by path 2 includes all call data packets collected by the sending end.
  • the first device and the third device can compensate for the original call link between the first device and the third device (i.e., the first link and the second link) by establishing a third link. ), reduce call data packet loss, jitter, delay, etc. that occur during the communication process between the first device and the third device, improve call quality, and reduce or avoid voice interruptions, silence, and video freezes during the call. , or even call interruption and other problems to improve user experience.
  • the main link of the first link can be established first, and then the main link of the second link can be established; it can also be established first
  • the main link of the second link needs to be established on both the main link of the first link and the main link of the second link. It can only be established after success.
  • auxiliary link of the second link may be established first, then the auxiliary link of the first link may be established, and finally the auxiliary link of the third link may be established.
  • the auxiliary link of the first link may be established first, then the auxiliary link of the third link may be established, and finally the auxiliary link of the second link may be established.
  • the auxiliary link of the first link and the auxiliary link of the second link may be established before the third link is successfully established, or may be established after the third link is successfully established. This embodiment does not limit this. .
  • the establishment process of each link between the first device, the second device and the third device can be seen as shown in Figure 10.
  • the process specifically includes S1001-S1005.
  • the first device and the second device establish the main link of the first link.
  • the second device and the third device establish the main link of the second link.
  • the first device and the second device establish an auxiliary link of the first link.
  • the second device and the third device establish an auxiliary link of the second link.
  • the third link includes a primary link, may include an auxiliary link, or may not include an auxiliary link.
  • the following is an exemplary description of the specific process of establishing the third link between the first device and the third device.
  • the first device and the third device may establish the third link in any of the following ways: (1) establishing the third link through negotiation between the first link and the second link; (2) ) establishes a third link based on the addressing server.
  • the details are as follows.
  • FIG 11 is a schematic diagram of a third link establishment process provided by an embodiment of the present application. The process specifically includes the following steps S1101 to S1106.
  • the third device detects the first preset condition. Please refer to the foregoing description for the specific content of the first preset condition, which will not be described again in this embodiment.
  • the third device sends a compensation link establishment request to the second device.
  • the third device may send the compensation link establishment request to the second device through the second link.
  • the third device may use the primary link to send a compensation link establishment request, or may send a compensation link establishment request through the auxiliary link.
  • the compensation link establishment request is used to request the establishment of a compensation link (ie, the third link) with the first device, and carries the link type of the compensation link and the communication address of the third device. Depending on the link type of the compensation link, the address information carried by the third device in the compensation link establishment request is different.
  • the communication address may be a SessionID, a temporary ID assigned by the server, a mobile phone number, an Internet Protocol (IP) address IP and Port (port number), email address, etc.
  • IP Internet Protocol
  • the communication address when the link type of the compensation link is a P2P link, the communication address includes the communication identification (ie, communication ID) of the third device, where the communication ID is obtained through network address translators. , the IP address and Port after NAT).
  • the communication ID is obtained through network address translators. , the IP address and Port after NAT.
  • the electronic device can use network address translation NAT technology to convert its own IP address and port number into an IP address and port number that can be accessed by the other party (i.e., the above-mentioned communication ID), so that the two electronic devices can be connected successfully.
  • the communication ID of the third device other electronic devices (such as the first device) can access the third device using WiFi or can access the third device using cellular data.
  • the compensation link establishment request may not carry the link type of the compensation link, but may also carry the IP address and communication addresses of multiple third devices such as Port, communication ID, and account ID. It should be noted that when the compensation link establishment request does not carry a link type, the compensation link is established between the first device and the third device according to the default communication method.
  • the compensation link establishment request may also carry the data type to be transmitted by the compensation link.
  • the data type may be voice, video, file, Raw_data (ie, original data), etc.
  • different communication methods may be used to establish the compensation link between the first device and the third device. For example, when the data to be transmitted by the compensation link is voice data, a Bluetooth link or a WiFi link can be established between the first device and the third device.
  • the Bluetooth link cannot meet the data transmission requirements due to bandwidth limitations. Therefore, a WiFi link can be established between the first device and the third device.
  • the compensation link establishment request also includes negotiation signaling, which is used to negotiate with the first device the transmission rules of call data packets on the compensation link.
  • the transmission rule may include: transmitting only call data packets sent by the first device to the third device on the compensation link, or only transmitting call data packets sent by the third device to the first device.
  • the transmission rule may be any one of Mode 1 to Mode 3 shown in S605.
  • the second device sends a compensation link establishment request to the first device.
  • the second device may send a compensation link establishment request to the first device through the first link.
  • the first link includes both a primary link and an auxiliary link
  • the second device may use the primary link to send a compensation link establishment request, or may send a compensation link establishment request through the auxiliary link.
  • the second device may send the compensation link establishment request to the first device through an RTCP packet transmitted on the first link.
  • the first device and the second device communicate through the first link, and the information transmitted on the first link includes RTP call data packets and RTCP messages. Therefore, after receiving the compensation link establishment request sent by the third device, the second device may write the compensation link establishment request into the RTCP message of the first link and send it to the first device.
  • RTCP defines multiple types of RTCP messages to transmit different control information, including source description items (SDES) messages.
  • SDES messages are used to describe the source of RTCP messages.
  • the SDES message includes a header and zero or more report chunks.
  • the header includes the version number (Version, V) of RTP and RTCP, the number of padding bits (Padding, P), the number of source report blocks (Source Count, SC), and the packet type (Packet Type, PT).
  • the report block includes a Synchronization source/Contributing source (SSRC/CSRC) identifier and zero or more source description items (Item).
  • the source description item carries information about SSRC/CSRC.
  • Source description items also include multiple types, such as canonical terminal mark (Canonical Name, CNAME) source description items, user name source description items, email address source description items, phone number source description items, user address location source description items, Tool source description items, notification/status source description items, private extension source description items, etc.
  • the second device can write the compensation link establishment request into any of the above source description items in the RTCP message, and send it to the first device through the RTCP message.
  • the structure of the CNAME source description item may be as shown in Figure 12B.
  • the second device may write the compensation link establishment request into the RTP call data packet and send it to the first device.
  • the second device may superimpose the compensation link establishment request in the call data in the form of a watermark and send it to the first device.
  • write the compensation link establishment request into the extension header of the RTP call data packet and send it to the first device.
  • the second device can communicate with the third device through the communication method.
  • a device sends a compensation link establishment request.
  • the second device when the second device sends a compensation link establishment request to the first device through the auxiliary link in the first link, the second device can encapsulate the compensation link establishment request in a customized format and send it to the first device. Sent to the first device. This embodiment does not limit the customized format.
  • S1104 After receiving the compensation link establishment request, the first device sends a compensation link establishment response to the second device.
  • the compensation link establishment response is used to indicate that the first device agrees to establish a compensation link with the third device, and includes the communication address of the first device.
  • the communication includes the IP address and Port of the first device, or the communication ID of the first device (ie, the IP address and Port converted by NAT).
  • the compensation link establishment response also includes the negotiation result of the transmission rules of the call data packet on the third link.
  • the user can turn on or off the call compensation function (including the function of establishing a third link) and wireless communication functions of the first device according to needs, such as WiFi, Bluetooth, data services, etc. It should be understood that when the call compensation function and the wireless communication function are both turned on, the first device supports establishing the third link. If either the call compensation function or the wireless communication function is not enabled, the first device does not support establishing the third link.
  • the first device If the first device supports establishing the third link, after receiving the compensation link establishment request, the first device sends a compensation link establishment response to the second device, so that the second device forwards the compensation link establishment response to Third device.
  • the first device may also send a link establishment response to the second device through an RTCP message in the primary link or auxiliary link of the first link, or an RTP call data packet.
  • the first device can write the compensation link establishment response into the SEDE field of the RTCP message, or write the compensation link establishment response into the data part of the RTP call data packet and send it to the second device; or, write the compensation link establishment response into the data part of the RTP call data packet and send it to the second device; or, The establishment request is written into the extension header of the RTP call data packet and sent to the second device.
  • the process of the second device sending a compensation link establishment request to the first device which will not be described again in this embodiment.
  • the second device can encapsulate the compensation link establishment response in a customized format and send it to the second device. Sent to the first device. This embodiment does not limit the customized format.
  • the first device does not support establishing the third link, it does not send the compensation link establishment response to the second device (that is, it does not respond to the second device), and then the second device naturally cannot forward the compensation link to the third device. Build a response. If the third device does not receive the compensation link establishment response returned by the first device within a preset time (eg, within 5 seconds), it is determined that the third link establishment fails. Alternatively, if the first device does not support establishing the third link, a link establishment failure notification is sent to the second device, so that the second device forwards it to the third device. After receiving the link establishment failure notification, the third device stops establishing the third link.
  • a link establishment failure notification please refer to the manner in which the first device sends a compensation link establishment response, which will not be described again in this embodiment.
  • the first device may not respond to the compensation link establishment request, or may also send a request to the second device.
  • the device sends a link establishment failure notification.
  • the third device may prompt the user.
  • the third device may prompt that the third link establishment fails by displaying prompt information.
  • the prompt information may be "Compensation link establishment failed.”
  • the third device may also prompt the user that the third link establishment fails by playing a voice, and the voice may be "compensation link establishment failure.”
  • the second device sends a compensation link establishment response to the third device.
  • the second device and the third device are connected through the second link, and the second link is a wireless communication link such as WiFi or Bluetooth, the second device can directly send the compensation link establishment response to the device through the second link.
  • the third device will not be described again in this embodiment.
  • S1106 The first device and the third device establish a third link.
  • the first device After receiving the compensation link establishment request, the first device obtains the communication address of the third device. After receiving the compensation link establishment response, the third device obtains the communication address of the first device. Based on this, the first device and the third device can establish the third link according to the communication address of the other party.
  • the first device and the third device may access the wireless network in the same or different ways.
  • the first device may use data services (ie, cellular data) to access the wireless network
  • the third device may use WiFi to access the cellular network, thereby establishing a third link between the first device and the third device.
  • the data transmission rules on the third link may not be negotiated, that is, the compensation link establishment request does not carry the support of the third device.
  • Data transmission rules, the link establishment response does not carry the negotiation results of the data transmission rules.
  • the data transmission rules are negotiated on the original call link (ie, the first link and the second link) or the third link. If the negotiation is successful, the third link will continue to be used to transmit call data packets. If the negotiation fails, the third link will be disconnected.
  • the addressing server is used to store the correspondence between the unique identification information of the electronic device and the communication address.
  • the unique identification information may be a phone number, a WeChat ID, a serial number, an email address, etc., which is not limited in this embodiment.
  • the corresponding relationship may be established by the second device or by the third device. They are explained below.
  • Example 1 The second device establishes a corresponding relationship between the unique identification information of the electronic device and the communication address, and the first device and the third device establish a third link based on the corresponding relationship.
  • an electronic device such as a mobile phone
  • a mobile phone that supports cellular calling functions can register with the addressing server every time it is turned on, calls other electronic devices, or receives incoming call information from other electronic devices, and records its phone number and correspondence address.
  • Stored in the addressing server according to the preset correspondence For example, referring to Table 2, after the first device is powered on, its phone number (ie, number 1) and communication address (ie, address 1-1) are stored in the addressing server. After the second device is powered on, its phone number (ie, number 2) and communication address (ie, address 2-1) are stored in the addressing server.
  • the second device In addition, if the electronic device (such as the second device) is connected to other electronic devices (such as the third device) through the wireless network, then the second device also needs to establish and store the phone number (i.e., the number) of the second device in the addressing server. 2) The corresponding relationship with the communication address of the third device (ie, address 2-2) and the device identification of the third device (ie, identification 3).
  • the device identification is used to uniquely identify the electronic device.
  • the device identification may be a device ID or the like.
  • the corresponding relationship may be as shown in Table 2.
  • the electronic device can query the communication address of the target device based on the phone number of the target communication device.
  • the second device can also query the first device's communication address as address 1-1 based on the first device's phone number (number 1).
  • the first device and the third device can establish a third link based on the addressing server.
  • Figure 13 is a schematic diagram of a third link establishment process provided by another embodiment of the present application, involving the process of the first device and the third device establishing the third link based on the above addressing server, specifically including the following steps S1301 to S1311.
  • the third device detects the first preset condition.
  • the third device sends a compensation link establishment request to the second device, where the compensation link establishment request carries identification information of the third device.
  • the third device sends a compensation link establishment request to the second device through the second link, for requesting to establish the third link with the first device.
  • the identification information of the third device is used to uniquely identify the third device.
  • the identification information may be a device ID or the like.
  • the second device After receiving the compensation link establishment request, the second device sends a first query request to the addressing server.
  • the first query request is used to query the communication address of the first device.
  • the first query request carries the phone number of the first device. It should be understood that the first device and the second device know each other's phone number during the call. Based on this, when the second device queries the communication address of the first device from the addressing server, it can carry the phone number of the first device in the first query request and send it to the addressing server, so that the addressing server can query according to the phone number. Output the communication address of the first device.
  • the addressing server queries the communication address of the first device according to the first query request.
  • the addressing server determines the correspondence between the telephone number and the communication address of the first device according to the telephone number carried in the request. , the communication address of the first device can be determined. Taking the phone number of the first device as number 1 as an example, according to the corresponding relationship shown by representation 1, the addressing server can determine that the communication address of the first device is address 1-1.
  • the addressing server returns the communication address of the first device to the second device.
  • S1306 The second device sends the communication address of the first device to the third device.
  • the second device sends a compensation link establishment request to the first device.
  • the first device sends a second query request to the addressing server.
  • the second query request is used to query the communication address of the third device.
  • the second query request carries the phone number of the second device and the identification information of the third device.
  • the addressing server queries the communication address of the third device according to the second query request.
  • the addressing server Since the addressing server stores the corresponding relationship between the phone number of the second device, the identification information of the third device, and the communication address of the third device, after receiving the second query request, the first device By requesting the corresponding relationship, the communication address of the third device can be determined. Taking the phone number of the second device as number 2 and the identification information of the third device as identification 3 as an example, according to the corresponding relationship shown in representation 1, the addressing server can determine that the communication address of the third device is address 2-2.
  • the addressing server returns the communication address of the third device to the first device.
  • the first device and the third device establish a third link based on the communication address of the first device and the communication address of the third device.
  • S1307 to S1310 only need to be executed after S1302 and before S1311, which is not limited in this embodiment.
  • the first device and the third device establish a third link through the server
  • the first device can only obtain the communication address of the third device and send data to the third device in one direction.
  • the third device can only obtain the communication address of the first device and send the call data packet to the first device. The device sends data in one direction.
  • the broadcast message receiver only needs to know the address of the broadcast message sender.
  • the third device receives a message broadcast by the first device, the third device only needs to learn the communication address of the first device. Based on this, after obtaining a broadcast message, the first device further processes the broadcast message if the broadcast message carries the communication address of the first device.
  • the device identifier can also be used to indicate the service processing status of the device, such as "the call has not been transferred”, “the call has been transferred to other devices", “ Transferred call answered", “Idle”, etc.
  • the addressing server queries the communication address of the calling device based on the phone number of the second device
  • the communication address of the electronic device that actually answers the call can be used as the address query result. For example, the communication address of the second device whose service processing status is "the call is not transferred", or the communication address of the third device whose service status is "the transferred call has been answered”.
  • Example 2 The third device establishes a corresponding relationship between the unique identification information of the electronic device and the communication address, and the first device and the third device establish a third link based on the corresponding relationship.
  • an electronic device such as a mobile phone
  • cellular calling functions can register with the addressing server every time it is turned on, calls other electronic devices, or receives incoming call information from other electronic devices, and records its phone number and correspondence address. Stored in the addressing server according to the preset correspondence. It should be noted that if an electronic device that has been registered with the addressing server transfers an incoming call to another electronic device, the communication address in the corresponding relationship needs to be updated to the communication address of the other electronic device.
  • the first device can combine the phone number of the first device (such as number 1) and the communication address of the first device (such as address The corresponding relationship of 1) is stored in the addressing server.
  • the second device may store the corresponding relationship between the phone number of the second device (eg, number 2) and the communication address of the second device (eg, address 2) in the addressing server.
  • the third device needs to replace the corresponding relationship between number 2 and address 2 with number 2 and address 3 (that is, the communication between the third device address) correspondence.
  • the corresponding relationship after replacement can be seen in Table 3-2.
  • the third device can establish a compensation link based on the updated correspondence table (such as Table 3-2).
  • the updated correspondence table such as Table 3-2.
  • Figure 14 is a schematic diagram of the third link establishment process provided by another embodiment of the present application, involving the process of the first device and the third device establishing the third link based on the above-mentioned addressing server, specifically including the following steps S1401 to S1409.
  • the third device detects the first preset condition. Please refer to the foregoing description for the specific content of the first preset condition, which will not be described again in this embodiment.
  • the third device sends a first query request to the addressing server.
  • the first query request is used to query the communication address of the first device.
  • the first query request carries the phone number of the first device. It should be understood that during the call, the first device and the second device know each other's phone number, and the second device can send the phone number of the first device to the third device. Based on this, when the third device queries the communication address of the first device from the addressing server, it can carry the phone number of the first device in the first query request and send it to the addressing server, so that the addressing server can query according to the phone number. Output the communication address of the first device.
  • the addressing server queries the communication address of the first device according to the first query request.
  • the addressing server determines the correspondence between the telephone number and the communication address of the first device according to the telephone number carried in the request. , the communication address of the first device can be determined. Taking the phone number of the first device as number 1 as an example, according to the corresponding relationship shown in Table 3-2, the addressing server can determine that the communication address of the first device is address 1.
  • the addressing server returns the communication address of the first device to the third device.
  • S1405 The third device sends a compensation link establishment request to the first device through the second device.
  • the compensation link establishment request is used to request the first device and the third device to establish a third link.
  • the third device first passes through the second link
  • the compensation link establishment request is sent to the second device, and then the second device sends the compensation link establishment request to the first device through the first link.
  • the first device sends a second query request to the addressing server.
  • the second query request is used to query the communication address of the third device.
  • the second query request carries the phone number of the second device.
  • the addressing server queries the communication address of the third device according to the second query request.
  • the addressing server Since the correspondence between the phone number of the second device and the communication address of the third device is stored in the addressing server, after receiving the second query request, the addressing server based on the second query request and the correspondence, that is, The communication address of the third device can be determined. Taking the phone number of the second device as number 2 as an example, according to the corresponding relationship shown in Table 3-2, the addressing server can determine that the communication address of the third device is address 3.
  • the addressing server returns the communication address of the third device to the first device.
  • the first device and the third device establish a third link based on the communication address of the first device and the communication address of the third device.
  • the second device can establish a corresponding relationship between the phone number of the second device and the communication address of each third device in the addressing server. Based on this, if any If a third device detects the second preset condition, each third device can establish a compensation link with the first device based on the corresponding relationship.
  • the compensation link establishment method is also applicable to the scenario where the first device, the second device and the third device perform signal relay communication.
  • the second device actually uses the SIM card information of the third device to access the cellular network.
  • the second device is actually a signal relay device. It is responsible for using the SIM card information of the third device to access the cellular network during the communication process between the first device and the third device. Retransmit communication packets between them.
  • the third device if the third device detects the first preset condition, the third device can also establish the above-mentioned compensation communication link with the first device.
  • the specific establishment method of the compensation communication link please refer to the above. The embodiments will not be described again here.
  • Scenario 1 Mobile phone 1 and mobile phone 2 are talking, and mobile phone 2 transfers the call to the laptop in the near field.
  • mobile phone 1 is used by user 1, and mobile phone 2 and laptop computer are used by user 2. While user 2 is working on a laptop computer, it may be inconvenient for him to use his mobile phone to answer calls. Based on this, if mobile phone 2 receives an incoming call from mobile phone 1, mobile phone 2 can transfer the call to the laptop. During the call, mobile phone 1 and mobile phone 2 are connected through the first link, and mobile phone 2 and the laptop are connected through the second link.
  • the notebook computer and mobile phone 1 When the notebook computer detects the first preset condition (such as poor call quality), the notebook computer and mobile phone 1 establish a third link, and use the third link to communicate with the original call link (i.e., the first link and the second link). link) to perform call compensation to improve the call quality of mobile phone 1 and laptop.
  • the first preset condition such as poor call quality
  • Scenario 2 Mobile phone 1 and mobile phone 2 are talking, and mobile phone 2 transfers the call to the nearby car machine.
  • mobile phone 1 is used by user 1, and mobile phone 2 and car machine are used by user 2.
  • mobile phone 2 and car machine are used by user 2.
  • mobile phone 2 When user 2 is driving a vehicle, it is usually inconvenient to use a mobile phone to answer calls. Based on this, if mobile phone 2 receives an incoming call from mobile phone 1, mobile phone 2 can transfer the call to the car machine.
  • mobile phone 1 and mobile phone 2 are connected through a first link, and mobile phone 2 and the car machine are connected through a second link.
  • the car machine When the car machine detects the first preset condition (such as poor call quality), the car machine and mobile phone 1 establish a third link, and use the third link to communicate with the original call link (i.e., the first link and the second link). link) to perform call compensation to improve the call quality between mobile phone 1 and car machine.
  • the vehicle can use the vehicle's cellular system (such as a vehicle-mounted intelligent terminal (telematics BOX, TBOX)) or a vehicle-mounted satellite system to establish a third link with the mobile phone.
  • the vehicle's cellular system such as a vehicle-mounted intelligent terminal (telematics BOX, TBOX)
  • a vehicle-mounted satellite system to establish a third link with the mobile phone.
  • Scenario 3 Mobile phone 1 calls mobile phone 2, and mobile phone 2 transfers the call to mobile phone 3 of a nearby family member.
  • mobile phone 1 is used by user 1
  • mobile phone 2 and mobile phone 3 are used by user 2
  • mobile phone 3 can be an electronic device belonging to user 2's family. If mobile phone 2 receives an incoming call from mobile phone 1, mobile phone 2 can transfer the call to mobile phone 3. During the call, mobile phone 1 and mobile phone 2 are connected through the first link, and mobile phone 2 and mobile phone 3 are connected through the second link.
  • mobile phone 1 and mobile phone 3 When mobile phone 3 detects the first preset condition (such as poor call quality), mobile phone 1 and mobile phone 3 establish a third link, and use the third link to communicate with the original call link (i.e., the first link and the second link). link) to perform call compensation to improve the call quality of mobile phone 1 and mobile phone 3.
  • the first preset condition such as poor call quality
  • Scenario 4 Mobile phone 1 calls the secondary card of mobile phone 2, and mobile phone 2 transfers the call to the far-field smart watch.
  • mobile phone 1 is the calling device of this call
  • mobile phone 2 is the called device of this call
  • hand Phone 2 is installed with SIM card 1 (primary card) and SIM card 2 (secondary card), and the smart watch is equipped with eSIM card 3.
  • SIM card 1 and eSIM card 3 correspond to the same phone number (that is, the smart watch and mobile phone 2 have multiple numbers).
  • Terminal Equipment After the mobile phone 2 establishes a near-field connection (such as a Bluetooth connection) with the smart watch, the modem of the smart watch is powered off and the interaction with the core network device is disconnected. When the near-field connection between mobile phone 2 and the smart watch is disconnected, the Modem of the smart watch is powered on and starts interaction with the core network equipment.
  • mobile phone 2 can also establish a second link with the smart watch and transfer the call to the smart watch through the second link so that the user can answer it.
  • mobile phone 1 and mobile phone 2 are connected through the first link, and mobile phone 2 and the smart watch are connected through the second link.
  • the smart watch When the smart watch detects the first preset condition (such as poor call quality), the smart watch uses the data service function of eSIM card 3 to establish a third link with mobile phone 1, and uses the third link to communicate with the original call link ( That is, the first link and the second link) perform call compensation to improve the call quality of the mobile phone 1 and the smart watch.
  • the first preset condition such as poor call quality
  • the smart watch uses WiFi to establish a third link with mobile phone 1, and uses the third link to communicate with the original call.
  • Call compensation is performed on the call links (i.e., the first link and the second link) to improve the call quality of the mobile phone 1 and the smart watch.
  • the second device can transfer the call to the third device, but the first device can also transfer the call to the fourth device.
  • the details are as follows.
  • Figure 16 is a schematic diagram of connections between devices in a call transfer scenario provided by an embodiment of the present application.
  • the first device and the second device are connected through the first link
  • the second device and the third device are connected through the second link.
  • the first device and the fourth device are connected through a fourth link.
  • the fourth link For the specific content of the fourth link, please refer to the above introduction about the second link, which will not be described again in this embodiment. It can be understood that after both the first device and the second device transfer the call, the device actually used by user 1 is the fourth device, and the device actually used by user 2 is the third device.
  • the fourth device collects the call data packets of user 1 and sends the call data packets to the third device through the fourth link, the first link and the second link in sequence, and the third device plays the call data pack.
  • the third device collects the call data packet of user 2 and sends it to the fourth device through the second link, the first link and the fourth link in sequence, and the fourth device plays the call data packet.
  • the fourth device can also establish a compensation link between the fourth device and the third device (see Figure 17 Show).
  • Figure 18 is a schematic diagram of the establishment process of a compensation link provided by an embodiment of the present application, involving a process in which the fourth device and the third device negotiate to establish the compensation link through the first link, the second link and the fourth link. This process specifically includes the following steps S1801 to S1808.
  • the third device detects the first preset condition.
  • the first device may also notify the third device to perform subsequent steps, which is not limited in this embodiment.
  • the third device sends a compensation link establishment request to the fourth device through the second device and the first device in sequence.
  • the third device sends the compensation link establishment request to the fourth device through the second link, the first link and the fourth link in sequence.
  • the compensation link establishment request carries the address information of the third device. For details, see S1102. In this implementation The examples will not be repeated here.
  • the fourth device sends a compensation link establishment response to the third device through the first device and the second device in sequence.
  • the fourth device sends the auxiliary link establishment response to the third device through the fourth link, the first link and the second link in sequence.
  • the auxiliary link establishment request carries the address information of the first device. For details, see S1104, which will not be described again in this embodiment.
  • the fourth device and the third device establish a third link based on mutual communication addresses.
  • the third link is the compensation link of the original call link (ie, the fourth link, the first link and the second link).
  • the first device and the third device also need to negotiate the data transmission rules of the compensation link (ie, the third link).
  • the details of the data transmission rules can be found in the previous description and will not be repeated here.
  • the fourth device and the third device may include the transmission rule negotiation information in the compensation link establishment request and the compensation link establishment response to negotiate data transmission rules during the process of establishing the compensation link. If the data transmission rule negotiation fails, the fourth device and the third device determine that the compensation link establishment fails.
  • the fourth device may establish a compensation link (third link) with the third device based on the original call link (i.e., the fourth link, the first link and the second link). ) negotiate data transmission rules.
  • the data transmission rules may be negotiated based on the compensation link (ie, the third link), which is not limited in this embodiment. If the data transmission rule negotiation is successful, the compensation link is used to transmit call data packets. If the negotiation fails, the compensation link is disconnected.
  • Figure 19 is a schematic diagram of a compensation communication scenario provided by other embodiments of the present application.
  • a fifth link may also be established between the first device and the third device, and the second device and the third device
  • a sixth link can also be established between the four devices.
  • the establishment process of the fifth link and the sixth link please refer to the foregoing description, which will not be described again in this embodiment.
  • the data transmission path between the fourth device and the third device may include the following paths 1-1 to 1-4 at the same time:
  • Path 1-1 fourth link-first link-second link. That is, the fourth device sends communication data packets to the third device through the first device and the second device in sequence, and correspondingly, the third device sends communication data packets to the fourth device through the second device and the first device in sequence.
  • Path 1-2 Fourth link to fifth link. That is, the fourth device and the third device indirectly transmit communication data packets through the first device.
  • Path 1-3 Sixth Link-Second Link. That is, the fourth device and the third device indirectly transmit communication data packets through the second device.
  • Path 1-4 Third link. That is, the fourth device and the third device directly transmit communication data packets.
  • the third device and the fourth device can perform call compensation through multiple paths during the call, which helps to improve call quality.
  • the second device may not transfer the call to other electronic devices, but answer the call locally. That is, the electronic devices actually used by both users are the first device and the second device.
  • the first device and the second device need to be connected to the core network device through the base station to establish a core network device.
  • network link to transmit call data packets may be due to poor network distribution, mutual interference of multiple networks, building obstruction, etc., resulting in weak signal strength or even no signal received by the electronic device. Therefore, during the call, a large number of call data packets in the call link may be lost, excessive delay or excessive jitter may occur, resulting in intermittent, silent, or even call interruption problems.
  • this application also provides a communication compensation method, which is used to compensate the current call through the compensation link during the call between the first device and the second device through the core network link, so as to improve the communication between the first device and the second device.
  • the second device improves call quality.
  • Figure 20A is a schematic structural diagram of a communication compensation system provided by an embodiment of the present application.
  • the system includes a first device, a second device and a third device, and the first device and the second device are connected through a first link (including a core network link).
  • a first link including a core network link.
  • the second device detects the second preset condition, the second device and the third device establish a second link (if there is already a second link, there is no need to re-establish it. ), and controls the first device and the third device to establish a third link.
  • the first device can notify the second device to establish a second link with the third device (if there is already a second link, there is no need to re-establish it), and control the first The device establishes a third link with the third device.
  • the second link and the third link constitute a compensation link of the first link.
  • the first device and the second device can jointly transmit call data packets through the first link and the compensation link, so as to improve the call quality of the first device and the second device.
  • the second device is provided with a "communication compensation" setting interface.
  • the user can set a device that can assist the second device (referred to as a assisting device).
  • the assisting device can It is the third device in the embodiment of this application.
  • users can also set the type of assistance service.
  • the types of assistance services include audio and video calls, file transfer, screen sharing, etc.
  • the second preset condition is that the communication quality of the first link is lower than a threshold.
  • the packet loss rate of the first link is higher than the packet loss rate threshold (for example, 10%); and/or, the signal-to-noise ratio of the first link is lower than the signal-to-noise ratio threshold (for example, 10 decibels); and/or, The delay of the call data packet of the first link is higher than the delay threshold (for example, 120 ms), etc.
  • the second preset condition may be that the electronic device enters a specific area (such as accessing a cell with poor communication quality, etc.), or is about to enter the specific area.
  • the electronic device may be a first device or a second device.
  • the second preset condition is that the user operates a second control
  • the second control is used to control the indirect establishment of a connection between the first device and the second device through other devices (such as a third device).
  • the second control may be a "device selection control" under the collaborative call compensation option.
  • the second preset condition may be a preset touch gesture detected by the electronic device, air control holding, or a voice control instruction, etc.
  • the user can control the establishment of the compensation link based on power consumption or tariff considerations.
  • the second preset condition may enable the compensation link automatic establishment function for the first device/second device.
  • the first device and the second device can reduce the transmission frequency of call data packets on the first link, or even release the first link, thereby saving the power consumption and power of the first device and the second device. Cellular call charges.
  • a compensation link is also established between the first device and the second device through the third device, and at the same time Transmitting call data packets through the core network link and the compensation link can improve call quality.
  • the cellular network coverage of each operator is usually different. Depending on the location, some operators (such as Operator A) may have poor network quality, while some operators (such as Operator B) may have better network quality.
  • Operator A may have poor network quality
  • Operator B may have better network quality.
  • the second device may experience poor call quality during the call.
  • the second device can connect to the third device through wireless communication technologies such as Bluetooth/WiFi, and use the third link through the cellular network accessed by the third device (i.e., the cellular network of operator B). The path is connected to the first device. Based on this, during the call between the first device and the second device through the first link, the third device can compensate the second device for the call through the cellular network of operator B, so as to improve the communication between the first device and the second device. conversation quality.
  • the following is an exemplary description of the specific process of establishing a compensation link between the first device and the second device.
  • Figure 23 is a schematic flowchart of a communication compensation method provided by an embodiment of the present application, involving a process in which a first device and a second device establish a compensation link through a third device.
  • the first device and the second device establish a first link.
  • S601 which will not be described again here.
  • the first device and the second device transmit call data packets through the first link.
  • the first link includes a core network link.
  • a core network link For details, please refer to the previous description, which will not be described again here.
  • the second device detects the second preset condition.
  • the second link is a near field communication link, such as a Bluetooth link, a WiFi link, etc.
  • the second link may be established with the third device after the second device detects the second preset condition, or may be pre-established between the second device and the third device before detecting the second preset condition. , this embodiment does not limit this.
  • the second device If the second device does not establish a second link with the third device after detecting the second preset condition, the second device needs to perform device discovery to determine and connect to the third device.
  • the second device can broadcast through wireless communication technologies such as BLE, WiFi, ultra wide band (UWB), D2D, vehicle to everything (V2X), etc.
  • the method discovers and connects the third device from the surrounding electronic devices, and establishes a second link with the third device.
  • the electronic devices around the second device may be your own smart watch, other mobile phones, tablet computers, laptops, car machines, or other people's mobile phones and tablet computers nearby, which is not limited in this embodiment.
  • the second device can use wireless communication technologies such as cellular data or WiFi to send a far-field broadcast message through at least one of a server (Server) or a transit device to discover and connect to the second device. Three devices. Alternatively, the second device may directly send a far-field connection request to the third device to connect to the third device. This is explained in detail below.
  • a server Server
  • a transit device to discover and connect to the second device.
  • the second device may directly send a far-field connection request to the third device to connect to the third device. This is explained in detail below.
  • the second device sends a far-field broadcast message through the server.
  • the same user may have multiple electronic devices, and these electronic devices usually log in to the same server through the same user ID (such as phone number, email address).
  • the second device can first send the broadcast message to the server, and then the server sends the broadcast message to other electronic devices under the user ID of the second device, thereby discovering and connecting the third device.
  • the server can also first use the low-power software of the third device (such as pushagent (push agent), SMS module), low-power hardware or the third device.
  • the connected home gateway first wakes up these electronic devices, and then sends broadcast messages to these electronic devices to discover and connect the third device.
  • the second device uses the server and the relay device to send the far-field broadcast message at the same time.
  • the same user may have multiple electronic devices, and these electronic devices usually log in to the same server through the same user ID (such as phone number, email address).
  • users can pre-set a transit device (such as a router). Based on this, the second device can first send the broadcast message to the server, and then the server forwards the broadcast message to the transfer device, and finally the transfer device sends the broadcast message to other electronic devices under the user ID of the second device, thereby performing Discovery and connection of third-party devices.
  • the second device sends a far-field broadcast message through the relay device.
  • the same user may have multiple electronic devices, and these electronic devices and the second device are connected to the same transit device (such as a router). Based on this, the second device can send far-field broadcast messages to these electronic devices through the relay device, and discover and connect the third device from these electronic devices.
  • the transit device such as a router
  • the second device directly sends a far-field compensation link establishment request to the third device according to the address information of the third device to connect to the third device.
  • the purpose is to communicate with the third device.
  • S2305 The first device and the third device establish a third link.
  • the third link please refer to the previous description and will not be described again here.
  • S2306 The first device and the second device use the first link to transmit the call data packet and at the same time use the second link and the third link to transmit the call data packet.
  • the first device and the second device transmit call data packets through two paths, one path is the first link (which can be called path A), and the other path is the second link.
  • the compensation link group composed of the path and the third link can be called path B).
  • path B when the first device sends the call data packet to the second device, it first sends the call data packet to the third device through the third link, and then the third device forwards it to the second device; the second device sends the call data packet to the second device.
  • the first device sends the call data packet, it first sends the call data packet to the third device through the second link, and then the third device forwards it to the first device.
  • the sending end may refer to the call data packet allocation method shown in any one of Figures 9A to 9C.
  • the call data packet is distributed between path A and path B, thereby sending the call data packet to the receiving end.
  • This embodiment will not be described in detail here. It should be understood that when the first device is the sending end, the second device is the receiving end; when the second device is the sending end, the first device is the receiving end.
  • the first device After collecting the call data packet of user 1, the first device simultaneously passes the call data packet through Path A and path B are sent to the second device. After the second device deduplicates and sorts the two-way call data packets, it plays the audio and video of user 1. In the same way, after the second device collects the call data packet of user 2, it sends the call data packet to the first device through path A and path B at the same time. After the first device deduplicates and sorts the two call data packets, Play user 2's audio and video.
  • the third device can deduplicate and sort the received call data packets and send them to the target device (such as the first device or a second device). If the third device has a decoding function, the third device can deduplicate and sort the received call data packets, decode them, and finally send them to the target device. Of course, the third device may not process the received call data packet, but transparently transmit it to the target device, which is not limited in this embodiment.
  • a compensation link is also established between the first device and the second device through the third device, and at the same time Call data packets are jointly transmitted through the core network link and the compensation link, thereby improving call quality.
  • the following is an exemplary description of the specific process of establishing the third link between the first device and the third device.
  • Figure 26 is a flow chart of a third link establishment process provided by an embodiment of the present application, specifically including the following steps S2601 to S2606.
  • the second device sends the first request to the third device.
  • the first request is used to request the third device to establish a third link with the first device.
  • the third device sends the communication address of the third device to the second device.
  • the second device knows the communication address of the third device required to establish the third link. Then, the third device does not need to send the communication address of the third device, but only sends response information indicating agreement to establish the third link.
  • the second device has previously established a second link with the third device before detecting the second preset condition, has pre-stored the communication address of the third device, and the third device has pre-authorized the authorization to assist the second device. If the device establishes a compensation link, then after detecting the second preset condition, the second device not only does not need to establish the second link, but also does not need to request the consent of the third device when establishing the third link. That is, S2601 to S2602 can be omitted and S2603 can be executed directly.
  • the second device sends a second request to the first device.
  • the second request is used to request the first device to establish a third link with the third device, and carries the communication address of the third device.
  • the first device sends the communication address of the first device to the second device.
  • the second device sends the communication address of the first device to the third device.
  • S2606 The first device and the third device establish a third link based on the communication address of the first device and the communication address of the third device.
  • the first device and the third device can establish the third link.
  • the third link and the second link work together to form a compensation link for the second device of the first device.
  • the first device and the third device also need to negotiate the data transmission rules of the compensation link (ie, the second link and the third link).
  • the details of the data transmission rules can be found in the previous description and will not be repeated here.
  • the third device may carry the transmission rule negotiation information in the request message (such as the first request, the second request), and The first device negotiates data transmission rules. If the data transmission rule negotiation fails, the first device and the third device determine that the compensation link establishment fails.
  • the first device and the third device may negotiate data transmission rules based on the first link after establishing the compensation link.
  • the data transmission rules are negotiated based on the compensation link (ie, the second link and the third link), which is not limited in this embodiment. If the data transmission rule negotiation is successful, the compensation link is used to transmit call data packets. If the negotiation fails, the compensation link is disconnected.
  • both the second link and the third link may be disconnected. If the second link is a link established by the second device before detecting the second preset condition, the third link is disconnected and the second link is retained.
  • Scenario A Mobile phone 1 and mobile phone 2 are talking, and mobile phone 2 establishes a compensation link through a laptop in the near field.
  • mobile phone 1 is used by user 1, and mobile phone 2 and laptop computer are used by user 2.
  • mobile phone 2 and mobile phone 1 if mobile phone 2 detects that the call quality is poor, or receives an instruction from the user to establish a compensation link, mobile phone 2 can establish a compensation link through the laptop and mobile phone 1, and perform the original compensation Call compensation is performed on the call link (i.e. the first link) to improve the call quality of mobile phone 1 and mobile phone 2.
  • the compensation link includes a second link between mobile phone 2 and laptop computer, and a third link between laptop computer and mobile phone 1.
  • Scenario B Mobile phone 1 and mobile phone 2 are talking, and mobile phone 2 establishes a compensation link through the car in the near field.
  • mobile phone 1 is used by user 1, mobile phone 2 and the car machine are used by user 2, and mobile phone 2 talks to mobile phone 1 inside or near the car machine.
  • mobile phone 2 if mobile phone 2 detects that the call quality is poor, or receives an instruction from the user to establish a compensation link, mobile phone 2 can establish a compensation link through the car unit and mobile phone 1 to improve the original call link (i.e. The first link) performs call compensation to improve the call quality of mobile phone 1 and mobile phone 2.
  • the compensation link includes a second link between the mobile phone 2 and the car machine, and a third link between the car machine and the mobile phone 1.
  • Scenario C Mobile phone 1 calls mobile phone 2, and mobile phone 2 establishes a compensation link through family member’s mobile phone 3.
  • mobile phone 1 is used by user 1
  • mobile phone 2 and mobile phone 3 are used by user 2
  • mobile phone 3 can be an electronic device belonging to user 2's family.
  • mobile phone 2 can establish a compensation link through the family member's mobile phone 3 and mobile phone 1.
  • Call compensation is performed on the original call link (ie, the first link) to improve the call quality of mobile phone 1 and mobile phone 2.
  • the compensation link includes a second link between mobile phone 2 and mobile phone 3, and a third link between mobile phone 3 and mobile phone 1.
  • Scenario D Mobile phone 1 calls mobile phone 2 and establishes a compensation link through a near-field smart watch.
  • mobile phone 1 is the calling device of this call
  • mobile phone 2 is the called device of this call
  • Mobile phone 2 is installed with SIM card 1 (primary card) and SIM card 2 (secondary card)
  • the smart watch is installed with eSIM card 3.
  • SIM card 1 and eSIM card 3 correspond to the same phone number (that is, the smart watch and mobile phone 2 have one number and multiple numbers).
  • Terminal Equipment Mobile phone 2 and the smart watch are connected through a second link (such as a Bluetooth link), and the modem of the smart watch is automatically powered off and disconnected from the core network equipment.
  • mobile phone 2 can control the smart watch
  • the Modem is powered on and establishes a third link with mobile phone 1 through the data service of the smart watch. After the third link is successfully established, the second link and the third link constitute the compensation link of the first link, and call compensation is performed on the original call link (i.e., the first link) to improve mobile phone 1 and Call quality on mobile phone 2.
  • Scenario E Mobile phone 1 and mobile phone 2 are talking, and mobile phone 2 establishes a compensation link through the router.
  • mobile phone 1 is used by user 1, and mobile phone 2 and router are used by user 2.
  • mobile phone 2 and router are used by user 2.
  • mobile phone 2 can establish a compensation link with mobile phone 1 through the router, and the original The call link (ie, the first link) performs call compensation to improve the call quality of mobile phone 1 and mobile phone 2.
  • the compensation link includes a second link between mobile phone 2 and the router, and a third link between the router and mobile phone 1.
  • the first device can indirectly access the second device through the third device, but the second device can also indirectly access the first device through the fourth device.
  • the details are as follows.
  • Figure 28 is a schematic diagram of a multi-device collaborative compensation call provided by another embodiment of the present application.
  • the first device and the second device are connected through the first link and exchange call data packets.
  • the first device connects to the second device through the fourth device and the third device in sequence to establish a compensation link.
  • the first device and the fourth device are connected through a fourth link
  • the fourth device and the third device are connected through a third link
  • the third device and the second device are connected through a third link.
  • Two link connection In each link segment of the compensation link, since both the first device and the fourth device belong to user 1, the first device and the fourth device can establish the fourth link in advance, or they can detect the fourth link when the first device detects the fourth link.
  • the fourth link is established after the two preset conditions.
  • the second device and the third device both belong to user 2, the second device and the third device can establish the second link in advance, or they can establish the third link after the second device detects the second preset condition.
  • Three links The fourth device and the third device belong to different users. Therefore, the fourth device and the third device need to negotiate and establish based on the established links (including the first link, the second link and the fourth link). Third link.
  • Figure 29 is a schematic diagram of the establishment process of the third link provided by an embodiment of the present application, which specifically includes the following steps S2901 to S2910.
  • the first device and the second device respectively detect the second preset condition.
  • the second device sends a third request to the third device.
  • the third request is used to request the third device to assist the second device in establishing a compensation link.
  • the third device sends the communication address of the third device to the fourth device through the second device and the first device in sequence.
  • the third device sends the communication address of the third device to the fourth device through the second link, the first link and the fourth link in sequence.
  • the fourth device sends the communication address of the fourth device to the third device through the first device and the second device in sequence.
  • the fourth device sends the communication address of the fourth device to the third device through the fourth link, the first link and the second link in sequence.
  • S2910 The fourth device and the third device establish a third link based on their mutual communication addresses. It should be understood that the fourth link, the third link and the second link together constitute the compensation link of the original call link (ie, the first link).
  • the fourth device and the third device also need to negotiate the data transmission rules of the compensation link (ie, the third link).
  • the details of the data transmission rules can be found in the previous description and will not be repeated here.
  • the fourth device and the third device may be in the process of establishing the third link, and the third device or the third device may include the transmission rule negotiation information in the compensation link establishment request to negotiate data with the other party. Transmission rules. If the data transmission rule negotiation fails, the first device and the second device determine that the compensation link establishment fails.
  • the fourth device may establish a compensation link (i.e., the fourth link, the third link, and the second link) with the third device based on the original call link (i.e., the first link). path) to negotiate data transmission rules.
  • the data transmission rules are negotiated based on the compensation links (ie, the fourth link, the third link, and the second link), which is not limited in this embodiment. If the data transmission rule negotiation is successful, the compensation link is used to transmit call data packets. If the negotiation fails, the compensation link is disconnected.
  • Figure 30 is a schematic diagram of a compensation communication scenario provided by other embodiments of the present application.
  • a fifth link may also be established between the first device and the third device
  • a sixth link may be established between the second device and the fourth device. link.
  • the establishment process of the fifth link and the sixth link please refer to the foregoing description, which will not be described again in this embodiment.
  • the data transmission path between the first device and the second device may include the following paths 2-1 to 2-4 at the same time:
  • Path 2-1 First link. That is, the first device and the second device exchange communication data packets.
  • Path 2-2 fourth link-third link-second link. That is, the first device sends communication data packets to the second device through the fourth device and the third device in sequence, and correspondingly, the second device sends communication data packets to the first device through the third device and the fourth device in sequence.
  • Path 2-3 Fifth link-second link. That is, the first device sends a communication data packet to the second device through the third device, and correspondingly, the second device sends a communication data packet to the first device through the third device.
  • Path 2-4 Fourth link to sixth link. That is, the first device sends a communication data packet to the second device through the third device, and correspondingly, the second device sends a communication data packet to the first device through the third device.
  • the first device and the second device can perform call compensation through multiple paths during the call, which helps to improve call quality.
  • sequence number of each step in the above embodiment does not mean the order of execution.
  • the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application.
  • processors mentioned in the embodiments of this application may be a central processing unit (CPU), or other general-purpose processor, digital signal processor (DSP), or application-specific integrated circuit (ASIC).
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • a general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.
  • non-volatile memory may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • non-volatile memory can be read-only memory (ROM), programmable ROM (PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically removable memory. Erase electrically programmable read-only memory (EPROM, EEPROM) or flash memory.
  • Volatile memory can be random access memory (RAM), which is used as an external cache.
  • RAM static random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • double data rate SDRAM double data rate SDRAM
  • DDR SDRAM double data rate SDRAM
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous link dynamic random access memory
  • direct rambus RAM direct rambus RAM
  • each framework or module is only a logical function division. In actual implementation, there may be other division methods. For example, multiple frameworks or modules may be combined or integrated into another system. , or some features can be ignored, or not implemented.
  • each functional module in each embodiment of the present application can be integrated into one processing module, or each module can exist physically alone, or two or more modules can be integrated into one module.
  • the above integrated modules can be implemented in the form of hardware or software function modules.

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Abstract

本申请实施例提供一种补偿通信方法和系统，涉及通信技术领域。该方法应用于第一设备、第二设备和第三设备，第一设备和第二设备通过第一链路连接，第二设备和第三设备通过第二链路连接，第一设备和第三设备通过第一链路和第二链路通信。在第一设备、第二设备或者第三设备检测到第一预设条件之后，第一设备与所述第三设备建立补偿链路；第一设备和第三设备在通过第一链路、第二链路通信的同时，通过补偿链路通信；或者，第一设备和第三设备断开第一链路和/或第二链路，并通过补偿链路通信。本申请实施例提供的技术方案，能够通过补偿链路补偿第一设备和第三设备之间的通信，提高第一设备和第三设备的通信质量。

Description

一种补偿通信方法和系统
本申请要求于2022年05月31日提交国家知识产权局、申请号为202210615532.0、申请名称为“一种补偿通信方法和系统”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
本申请涉及通信技术领域，尤其涉及一种补偿通信方法和系统。
背景技术
目前，在第一设备(如手机1)和第二设备(如手机2)进行蜂窝通话的过程中，第二设备可以将通话转移到第三设备(如平板电脑、笔记本电脑等)进行。可以理解的是，在通话转移后，双方用户实际使用第一设备和第三设备进行通话。
在上述通话过程中，第一设备和第二设备之间通过核心网传输通话数据包，第二设备和第三设备之间通过无线保真(wireless fidelity，WiFi)、(bluetooth，BT)蓝牙、数据业务等无线通信技术传输通话数据包。但是，受设备间距离、无线网络质量等因素的影响，第二设备和第三设备之间可能会出现通话数据包丢包、抖动、延时等情况，从而导致通话过程出现语音断续、无声、视频卡顿、甚至通话中断等问题，用户体验不佳。
发明内容
本申请提供一种补偿通信方法和系统，用于解决现有技术中电子设备之间通话质量较差的问题。
为达到上述目的，本申请采用如下技术方案：
第一方面，本申请实施例提供一种补偿通信方法，应用于第一设备、第二设备和第三设备，第一设备和第二设备通过第一链路连接，第二设备和第三设备通过第二链路连接，第一设备和第三设备通过第一链路和第二链路通信。该方法包括：在第一设备、第二设备或者第三设备检测到第一预设条件之后，第一设备与第三设备建立补偿链路；第一设备和第三设备在通过第一链路、第二链路通信的同时，通过补偿链路通信；或者，第一设备和第三设备断开第一链路和/或第二链路，并通过补偿链路通信。
通过本申请实施例提供的方法，第一设备和第三设备在通过第二设备间接通信的过程中，响应于第一预设条件，第一设备和第三设备可以再建立一条补偿链路，并通过该补偿链路补偿第一设备和第三设备之间的通信，能够提高第一设备和第三设备的通信质量。
示例性的，在第一设备和第二设备进行蜂窝通话，且第二设备将通话转移到第三设备的场景下，第一设备和第三设备通过第二设备间接通信。在该通信过程中，若第一设备、第二设备或者第三设备检测到第一预设条件，第一设备可以和第三设备直接建立补偿通信链路，以在第一设备和第三设备之间传输通话数据包，从而提高第一设备和第三设备的通话质量，提高用户体验。
在一些实施例中，第一预设条件包括：
检测到对第一控件的操作，第一控件用于控制第三设备与第一设备建立补偿链路。和/或，
获取到预设的触摸手势、隔空控制手持或者语音控制指令。和/或，
第二设备将通信服务转移到第三设备。和/或，
第一链路或者第二链路的通信质量低于阈值。和/或，
第一设备、第二设备或者第三设备即将进入/已经进入特定区域。和/或，
第一设备、第二设备或者第三设备开启了补偿链路自动建立功能。
基于上述本实施例提供的第一预设条件，第一设备、第二设备或者第三设备均可以根据用户指令、通信质量、电子设备所在区域、电子设备功能设备情况等因素中的至少一个来建立补偿链路，补偿链路建立条件灵活。换而言之，通信过程中涉及的任意一个电子设备检测到第一预设条件之后，均可以触发建立第一设备和第三设备之间的补偿链路。例如，第一设备或者第二设备在检测到第一预设条件之后，可以通知第三设备开始建立补偿链路。第三设备在检测到第一预设条件之后，自行开始建立补偿链路。
在一些实施例中，第一链路包括：核心网链路，和/或，基于无线保真WiFi或者蓝牙建立的近场通信链路，和/或，基于WiFi、蜂窝数据或者卫星通信建立的远场通信链路。第二链路和补偿链路包括：基于WiFi或者蓝牙建立的近场通信链路，和/或，基于WiFi、蜂窝数据或者卫星通信建立的远场通信链路。
在一些实施例中，第三设备与第一设备建立补偿链路，包括：第三设备和第一设备通过第一链路和第二链路协商建立补偿链路；或者，第三设备和第一设备通过寻址服务器协商建立补偿链路。
在一些实施例中，第三设备和第一设备通过第一链路和第二链路协商建立补偿链路，包括：第三设备通过第二链路和第一链路，向第一设备发送补偿链路建立请求，补偿链路建立请求携带第三设备的通信地址；第一设备通过第一链路和第二链路，向第三设备发送补偿链路建立响应，补偿链路建立响应携带第一设备的通信地址；第一设备和第三设备根据对方的通信地址建立补偿链路。
在本实施例中，第一设备和第三设备通过已有通信链路协商建立补偿链路，无需依赖其他通信链路，协商过程简单方便。
在一些实施例中，第三设备通过第二链路和第一链路，向第一设备发送补偿链路建立请求，包括：第三设备通过第二链路向第二设备发送补偿链路建立请求；当第一链路为核心网链路时，第二设备将补偿链路建立请求写在实时传输控制协议RTCP报文/实时传输协议RTP数据包中发送给第一设备；或者，当第一链路不是核心网链路时，第二设备采用自定义或者预设的方式向第一设备发送补偿链路建立请求。
应理解，RTCP报文和RTP数据包是核心网链路中已有的内容，第二设备通过RTCP报文/RTP数据包向第一设备发送补偿链路建立请求时，无需再定义其他数据包，传输过程简单方便。
在一些实施例中，第一设备通过第一链路和第二链路向第三设备发送补偿链路建立响应，包括：当第一链路为核心网链路时，第一设备将补偿链路建立响应写在RTCP报文/RTP数据包中发送给第二设备；或者，当第一链路不是核心网链路时，第一设备采用自定义或者预设的方式向第二设备发送补偿链路建立响应；第二设备通过第二链路向第三设备发送 补偿链路建立响应。
应理解，RTCP报文和RTP数据包是核心网链路中已有的内容，第一设备通过RTCP报文/RTP数据包向第二设备发送补偿链路建立响应时，无需再定义其他数据包，传输过程简单方便。
在一些实施例中，第三设备和第一设备通过寻址服务器协商建立补偿链路，包括：第一设备根据寻址服务器中存储的第二设备的唯一标识信息和第三设备的通信地址的对应关系，确定第三设备的通信地址；第三设备根据寻址服务器中存储的第一设备的唯一标识信息与通信地址的对应关系，确定第一设备的通信地址；第一设备和第三设备根据对方的通信地址建立补偿链路。
在本实施例中，第一设备和第三设备通过寻址服务器协商建立补偿链路，协商过程不占用第一设备和第三设备的原通信链路(即第一链路和第二链路)，不会影响原通信链路上数据的传输。
在一些实施例中，第一设备和第三设备在通过第一链路、第二链路通信的同时，通过补偿链路通信，包括：第一设备和第三设备通过第一链路和第二链路传输通信数据包的第一部分，通过补偿链路传输通信数据包的第二部分；第一部分和第二部分的总和包括待传输的所有通信数据包；其中，第一部分和第二部分完全相同，或者完全不同，或者部分相同。
在本实施例中，当第一部分和第二部分完全相同时，可以减少第一设备和第三设备通信过程中通信数据包的缺失。当第一部分和第二部分完全不相同或者仅有部分相同时，可以减少第一设备和第三设备的原通话链路(即第一链路和第二链路上)通信数据包的传输压力，提高通话质量。
在一些实施例中，第三设备为第二设备的分机，或者，第二设备为第三设备的信号接力设备。换而言之，本申请实施例提供的补偿通信方法适用于通信分机(如通话分机)的场景，还适用于信号接力通信的场景。
第二方面，本申请实施例提供一种补偿通信系统，包括第一设备、第二设备和第三设备，第一设备和第二设备通过第一链路连接，第二设备和第三设备通过第二链路连接；第一设备和第三设备通过第一链路和第二链路通信。其中，第一设备被配置为执行上述第一方面中第一设备所执行的方法。第二设备被配置为执行上述第一方面中第二设备所执行的方法。第三设备被配置为执行上述第一方面中第三设备所执行的方法。
可以理解的是，上述第二方面的有益效果可以参见上述第一方面中的相关描述，在此不再赘述。
第三方面，本申请实施例提供一种补偿通信方法，应用于第一设备、第二设备、第三设备和第四设备，第一设备和第二设备通过第一链路连接，第二设备和第三设备通过第二链路连接，第一设备和第四设备通过第四链路连接；第四设备和第三设备通过第四链路、第一链路和第二链路通信。该方法包括：第一设备、第二设备、第三设备和第四设备中的任一个设备在检测到第一预设条件之后，控制第三设备与第四设备建立补偿链路；第四设备和第三设备在通过第四链路、第一链路和第二链路通信的同时，通过补偿链路通信；或者，第四设备和第三设备断开第四链路、第一链路和第二链路中的至少一个，并通过补偿链路通信。
通过本申请实施例提供的方法，第四设备和第三设备在通过第一设备和第二设备间接通信的过程中，响应于第一预设条件，第四设备和第三设备可以再建立一条补偿链路，并通过该补偿链路补偿第四设备和第三设备之间的通信，能够提高第四设备和第三设备的通信质量。
示例性的，在第一设备和第二设备进行蜂窝通话，第一设备将通话转移到第四设备，第二设备将通话转移到第三设备的场景下，第四设备和第三设备通过第一设备和第二设备间接通信。在该通信过程中，响应于第一预设条件，第四设备可以和第三设备直接建立补偿通信链路，以在第四设备和第三设备之间传输通话数据包，从而提高第四设备和第三设备的通话质量，提高用户体验。
在一些实施例中，该方法还包括：第一设备和第三设备建立第五链路，第四设备和第三设备还通过第四链路和第五链路通信。通过本申请实施例提供的方法，可以进一步改善第四设备和第三设备的通信质量。
在一些实施例中，该方法还包括：第二设备和第四设备建立第六链路，第四设备和第三设备还通过第二链路和第六链路通信。通过本申请实施例提供的方法，可以进一步改善第四设备和第三设备的通信质量。
第四方面，本申请实施例提供一种补偿通信系统，包括第一设备、第二设备、第三设备和第四设备，第一设备和第二设备通过第一链路连接，第二设备和第三设备通过第二链路连接，第一设备和第四设备通过第四链路连接；第四设备和第三设备通过第四链路、第一链路和第二链路通信。其中，第一设备被配置为执行上述第三方面中第一设备所执行的方法。第二设备被配置为执行上述第三方面中第二设备所执行的方法。第三设备被配置为执行上述第三方面中第三设备所执行的方法。第四设备被配置为执行上述第三方面中第四设备所执行的方法。
可以理解的是，上述第四方面的有益效果可以参见上述第三方面中的相关描述，在此不再赘述。
第五方面，本申请实施例提供一种补偿通信方法，应用于第一设备、第二设备和第三设备，第一设备和第二设备通过第一链路连接并通信。该方法包括：第一设备/第二设备在检测到第二预设条件之后，第一设备和第二设备通过第三设备间接建立补偿链路，该补偿链路包括第二设备和第三设备之间的第二链路，和第一设备和第三设备之间的第三链路；第一设备和第二设备在通过第一链路通信的同时，通过补偿链路通信；或者，第一设备和第二设备断开第一链路，并通过补偿链路通信。
通过本申请实施例提供的方法，第一设备和第二设备在直接通信的过程中，响应于第二预设条件，第一设备和第二设备可以通过第三设备再间接建立一条补偿链路，并通过该补偿链路补偿第一设备和第二设备之间的通信，能够提高第一设备和第二设备的通信质量。
在一些实施例中，第二预设条件包括：
检测到对第二控件的操作，第二控件用于控制第一设备与第二设备建立补偿链路。和/或，
获取到预设的触摸手势、隔空控制手持或者语音控制指令。和/或，
第一链路的通信质量低于阈值。和/或，
第一设备/第二设备即将进入/已经进入特定区域。和/或，
第一设备/第二设备开启了补偿链路自动建立功能。
基于上述本实施例提供的第二预设条件，第一设备和第三设备可以根据用户指令、通信质量、电子设备所在区域、电子设备功能设备情况等因素中的至少一个来建立补偿链路，补偿链路建立条件灵活。
在一些实施例中，第一链路包括：核心网链路，和/或，基于无线保真WiFi或者蓝牙建立的近场通信链路，和/或，基于WiFi、蜂窝数据或者卫星通信建立的远场通信链路。第二链路和第三链路包括：基于WiFi或者蓝牙建立的近场通信链路，和/或，基于WiFi、蜂窝数据或者卫星通信建立的远场通信链路。
在一些实施例中，第一设备和第二设备通过第三设备间接建立补偿链路，包括：第二设备通过近场广播或者远场广播发现并连接第三设备，形成第二链路；第三设备通过第二链路和第一链路向第一设备发送第三设备的通信地址；第一设备通过第一链路和第二链路向第三设备发送第一设备的通信地址；第一设备和第三设备根据对方的通信地址建立第三链路，第二链路和第三链路组成的链路群为补偿链路。
在一些实施例中，第二设备通过近场广播发现并连接第三设备，形成第二链路，包括：第二设备通过蓝牙广播、WiFi广播、超带宽UWB广播、设备到设备D2D广播或者车联网V2X广播发现并连接第三设备。
在一些实施例中，第二设备通过远场广播发现并连接第三设备，包括：第二设备通过服务器发送远场广播消息，发现并连接第三设备，形成第二链路。或者，第二设备通过中转设备发送远场广播消息，发现并连接第三设备，形成第二链路。或者，第二设备同时使用服务器和中转设备发送远场广播消息，发现并连接第三设备，形成第二链路。或者，第二设备直接根据第三设备的地址信息连接第三设备，形成第二链路。
在一些实施例中，第一设备和第二设备在通过第一链路通信的同时，通过补偿链路通信，包括：第一设备和第二设备通过第一链路传输通信数据包的第一部分，通过补偿链路传输通信数据包的第二部分；第一部分和第二部分的总和包括待传输的所有通信数据包；其中，第一部分和第二部分完全相同，或者完全不同，或者部分相同。
在本实施例中，当第一部分和第二部分完全相同时，可以减少第一设备和第二设备通信过程中通信数据包的缺失。当第一部分和第二部分完全不相同或者仅有部分相同时，可以减少第一设备和第二设备的原通信链路(即第一链路)通信数据包的传输压力，提高通话质量。
第六方面，本申请实施例提供一种补偿通信系统，包括第一设备、第二设备和第三设备，第一设备和第二设备通过第一链路连接并通信。第一设备被配置为执行上述第五方面中第一设备所执行的方法。第二设备被配置为执行上述第五方面中第二设备所执行的方法。第三设备被配置为执行上述第五方面中第三设备所执行的方法。
可以理解的是，上述第六方面的有益效果可以参见上述第五方面中的相关描述，在此不再赘述。
第七方面，本申请实施例提供一种补偿通信方法，应用于第一设备、第二设备、第三设备和第四设备，第一设备和第二设备通过第一链路连接并通信。该方法包括：第一设备/第二设备在检测到第二预设条件之后，第一设备和第二设备建立补偿链路；该补偿链路包括：第一设备和第四设备之间的第四链路、第四设备和第三设备之间的第三链路、第三设 备和第二设备之间的第二链路。第一设备和第二设备在通过第一链路通信的同时，通过补偿链路通信；或者，第一设备和第二设备断开第一链路，并通过补偿链路通信。
在一些实施例中，该方法还包括：第一设备和第三设备建立第五链路，第一设备和第二设备还通过第二链路和第五链路通信。通过本申请实施例提供的方法，可以进一步改善第一设备和第二设备的通信质量。
在一些实施例中，该方法还包括：第二设备和第四设备建立第六链路，第一设备和第二设备还通过第四链路和第六链路通信。通过本申请实施例提供的方法，可以进一步改善第一设备和第二设备的通信质量。
第八方面，本申请实施例提供一种补偿通信系统，包括第一设备、第二设备、第三设备和第四设备，第一设备和第二设备通过第一链路连接并通信。第一设备被配置为执行上述第七方面中第一设备所执行的方法。第二设备被配置为执行上述第七方面中第二设备所执行的方法。第三设备被配置为执行上述第七方面中第三设备所执行的方法。第四设备被配置为执行上述第七方面中第四设备所执行的方法。
可以理解的是，上述第八方面的有益效果可以参见上述第七方面中的相关描述，在此不再赘述。
附图说明
图1是本申请实施例提供的一个蜂窝通话场景的示意图；
图2A是申请实施例提供的第一链路中主链路的连接示意图；
图2B是申请实施例提供的第一链路中近场通信链路的连接示意图；
图2C是申请实施例提供的第一链路中远场通信链路的连接示意图；
图3A是申请实施例提供的第二链路中近场通信链路的连接示意图；
图3B是申请实施例提供的第二链路中远场通信链路的连接示意图；
图4A是本申请的一个实施例提供的通信补偿方法所适用的系统的示意图；
图4B是本申请的一个实施例提供的通信补偿设置界面的示意图；
图5是本申请的一个实施例提供的第三链路的连接示意图；
图6是本申请的一个实施例提供的通信补偿方法的示意性流程图；
图7是本申请的一个实施例提供的第二设备和第三设备间的数据传输示意图；
图8是本申请的一个实施例提供的建立补偿链路的控制场景示意图；
图9A～图9C为本申请不同实施例提供的通话数据包在路径1和路径2上传输时的数据包分配示意图；
图10是本申请的一个实施例提供的不同设备之间的链路建立流程图；
图11是本申请的一个实施例提供的第三链路的建立流程示意图；
图12A是本申请的一个实施例提供的SDES报文的示意图；
图12B是本申请的一个实施例提供的CNAME源描述项的示意图；
图13是本申请另一个实施例提供的第三链路的建立流程示意图；
图14是本申请又一个实施例提供的第三链路的建立流程示意图；
图15A～图15D是本申请不同实施例提供的补偿链路的应用场景示意图；
图16是本申请的一个实施例提供的通话转移场景下的设备间连接示意图；
图17是本申请的一个实施例提供的第四设备和第三设备之间补偿链路的示意图；
图18是本申请的一个实施例提供的补偿链路的建立过程示意图；
图19是本申请的其他实施例提供的补偿通信场景的示意图；
图20A是本申请的一个实施例提供的通信补偿系统的结构示意图；
图20B是本申请另一个实施例提供的通信补偿设置界面的示意图；
图21是本申请另一个实施例提供的建立补偿链路的控制场景示意图；
图22是本申请的一个实施例提供的通信场景示意图；
图23是本申请的一个实施例提供的通信补偿方法的示意性流程图；
图24是本申请的一个实施例提供的设备发现与连接的示意图；
图25是本申请另一个实施例提供的设备发现与连接的示意图；
图26是本申请的一个实施例提供的第三链路建立过程的流程图；
图27A～图27E是本申请不同实施例提供的补偿链路的应用场景示意图；
图28是本申请另一个实施例提供的多设备协同补偿通话的示意图；
图29是本申请的一个实施例提供的第三链路的建立过程示意图；
图30是本申请其他实施例提供的补偿通信场景的示意图。
具体实施方式
下面结合附图对本申请实施例提供的技术方案进行说明。
应理解，在本申请实施例的描述中，除非另有说明，“/”表示或的意思，例如，A/B可以表示A或B；本文中的“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。
在本实施例中，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本实施例的描述中，除非另有说明，“多个”的含义是两个或两个以上。
本申请实施例提供的技术方案可以应用于各种通信系统，例如：长期演进(long term evolution，LTE)系统、LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)、通用移动通信系统(universal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信系统、第五代(5th Generation，5G)系统或新无线(new radio，NR)、全球移动通信系统(global system for mobile communications，GSM)、码分多址(code division multiple access，CDMA)通信系统、时分同步码分多址(time division-synchronous CDMA，TD-SCDMA)通信系统等。
本申请实施例提供的技术方案适用于电路交换(Circuit Switched，CS)、长期演进语音承载(voice over long-term evolution，VoLTE)、新空口语音承载(voice over new radio，VoNR)、长期演进视频承载(video over long-term evolution，ViLTE)、新空口视频承载(video over new radio，ViNR)、演进分组系统回落(evolved packet system fallback，EPS fallback)、CS回落(CS fallback)、基于无线保真(wireless fidelity，WiFi)的语音通话(voice over WiFi，VoWiFi)或者基于WiFi的视频通话(video over WiFi，ViWiFi)等通话中。
此外，本实施例提供的技术方案还适用于互联网应用服务(over the top，OTT)通话 场景，OTT通话包括OTT视频通话和OTT语音通话等。另外，本实施例提供的技术方案还可以延伸使用到非通话的其他数据传输场景，例如文件上传/下载场景、短消息(Message)收发场景、彩信收发场景、邮件收发场景、游戏场景、音频流和/或视频流的传输场景(如屏幕共享场景)等，本实施例对此不进行限制。
下面以蜂窝通话场景为例，对本申请实施例提供的技术方案进行示例性说明。
图1是本申请实施例提供的一个蜂窝通话场景的示意图。参见图1，该场景中涉及的电子设备包括第一设备(如手机1)、第二设备(如手机2)和第三设备(如平板电脑、笔记本电脑、智能音箱、智能手表、手机3等)。
其中，第一设备和第二设备均接入核心网，第二设备和第三设备之间无线连接。基于此，第一设备可以通过核心网呼叫第二设备，以便与第二设备进行蜂窝通话。第二设备在接收到来电之后，可以根据用户操作或者预设规则将本次来电转移到第三设备进行来电提醒和接听；也可以先在本地接通电话，再根据用户操作将通话转移到第三设备。可以理解的是，当来电/通话转移到第三设备之后，在通话过程中，双方用户实际使用的电子设备是第一设备和第三设备。
本实施例将第一设备和第二设备之间的通信链路称为第一链路，该第一链路至少包括一条主链路，此外还可以包括至少一条辅助链路(可参见图1)。当第一设备和第二设备进行蜂窝通话时，该主链路为核心网链路(可参见图2A)，该辅助链路可以是近场通信链路，也可以是远场通信链路。
示例性的，参见图2B所示，第一设备和第二设备之间的近场通信链路可以是蓝牙链路、WiFi链路(包括WiFi路由器链路和WiFi P2P链路)等。其中，蓝牙链路可以是传统蓝牙链路或者低功耗蓝牙(bluetooth low energy，BLE)链路。在该WiFi链路中，第一设备和第二设备接入同一局域网(local area network，LAN)，或者说，第一设备和第二设备连接同一路由器。另外，在该WiFi链路中，第一设备和第二设备可以通过点对点(peer to peer，P2P)、设备到设备(device to device，D2D)的方式相互连接，以直接进行通信。或者，第一设备和第二设备之间也可以通过路由器间接连接，通过路由器中转通信信号。
示例性的，参见图2C所示，该远场通信链路可以是基于WiFi、蜂窝数据、卫星通信等无线通信技术建立的。在该远场通信链路中，第一设备和第二设备可以通过基站或者路由器等接入网设备接入通信网络，并且第一设备所使用的接入网设备可以与第二设备相同，也可以与第二设备不同。例如，第一设备通过基站接入通信网络，第二设备通过路由器接入通信网络。或者，第一设备和第二设备均通过路由器接入通信网络。另外，第一设备和第二设备在接入通信网络之后，可以直接通信，也可以通过服务器或者卫星间接通信。
结合图2C可知，若第一设备和/或第二设备不具备直接连接卫星的功能，则第一设备(即UE1)和第二设备(即UE2)之间的辅助链路可以是如下链路中的任一种：
链路1-1：UE1—UE1侧蜂窝基站—服务器/卫星—UE2侧蜂窝基站—UE2。
链路1-2：UE1—UE1侧蜂窝基站—服务器/卫星—UE2侧路由器—UE2。
链路1-3：UE1—UE1侧路由器—服务器/卫星—UE2侧蜂窝基站—UE2。
链路1-4：UE1—UE1侧路由器—服务器/卫星—UE2侧路由器—UE2。
链路1-5：UE1—UE1侧蜂窝基站—UE2侧蜂窝基站—UE2。
链路1-6：UE1—UE1侧蜂窝基站—UE2侧路由器—UE2。
链路1-7：UE1—UE1侧路由器—UE2侧蜂窝基站—UE2。
链路1-8：UE1—UE1侧路由器—UE2侧路由器—UE2。
另外，若第一设备和/或第二设备具备直接连接卫星的功能，则第一设备和第二设备之间的辅助链路还可以是如下链路中的任一种：
链路1-9：UE1—卫星—UE2侧蜂窝基站/UE2侧路由器—UE2。
链路1-10：UE1—UE1侧蜂窝基站—卫星—UE2。
链路1-11：UE1—卫星—UE2。
链路1-12：UE1—卫星—服务器-UE2侧蜂窝基站/UE2侧路由器—UE2。
本实施例将第二设备和第三设备之间的无线通信链路称为第二链路，该第二链路至少包括一条主链路，此外还可以包括至少一条辅助链路(可参见图1)。第二链路中的主链路和辅助链路可以是近场通信链路，也可以是远场通信链路。
示例性的，参见图3A所示，第二设备和第三设备之间的近场通信链路可以是蓝牙链路、WiFi链路(包括WiFi路由器链路和WiFi P2P链路)。其中，蓝牙链路可以是传统蓝牙链路或者低功耗蓝牙链路。在WiFi链路中，第二设备和第三设备接入同一局域网，或者说，第二设备和第三设备连接同一路由器。另外，在WiFi链路中，第二设备和第三设备可以通过P2P或者D2D的方式相互连接，以直接进行通信。或者，第二设备和第三设备之间也可以通过路由器间接连接，通过路由器中转通信信号。
示例性的，参见图3B所示，在该远场通信链路中，第二设备和第三设备可以通过基站或者路由器等接入网设备接入通信网络，并且第二设备所使用的接入网设备可以与第三设备相同，也可以与第三设备不同。例如，第二设备通过基站接入通信网络，第三设备通过路由器接入通信网络。或者，第二设备和第三设备均通过路由器接入通信网络。另外，第二设备和第三设备在接入通信网络之后，可以直接通信，也可以通过服务器或者卫星间接通信。
结合图3B可知，若第二设备和/或第三设备不具备直接连接卫星的功能，则第二设备(即UE2)和第三设备(即UE3)之间的辅助链路可以是如下链路中的任一种：
链路2-1：UE2—UE2侧蜂窝基站—服务器/卫星—UE3侧蜂窝基站—UE3。
链路2-2：UE2—UE2侧蜂窝基站—服务器/卫星—UE3侧路由器—UE3。
链路2-3：UE2—UE2侧路由器—服务器/卫星—UE3侧蜂窝基站—UE3。
链路2-4：UE2—UE2侧路由器—服务器/卫星—UE3侧路由器—UE3。
链路2-5：UE2—UE2侧蜂窝基站—UE3侧蜂窝基站—UE3。
链路2-6：UE2—UE2侧蜂窝基站—UE3侧路由器—UE3。
链路2-7：UE2—UE2侧路由器—UE3侧蜂窝基站—UE3。
链路2-8：UE2—UE2侧路由器—UE3侧路由器—UE3。
另外，若第二设备和/或第三设备具备直接连接卫星的功能，则第二设备和第三设备之间的辅助链路还可以是如下链路中的任一种：
链路2-9：UE2—卫星—UE3侧蜂窝基站/UE3侧路由器—UE3。
链路2-10：UE2—UE2侧蜂窝基站—卫星—UE3。
链路2-11：UE2—卫星—UE3。
链路2-12：UE2—卫星—服务器-UE3侧蜂窝基站/UE3侧路由器—UE3。
在上述通话过程中，受第二设备和第三设备之间的距离、无线网络质量等因素的影响，第二链路可能会出现通信质量较差的情况。例如，当第二链路是蓝牙链路时，随着第二设备和第三设备距离的逐渐增大，蓝牙链路的通信质量会逐渐降低。或者，当第二链路是WiFi链路时，当WiFi网络质量降低时，WiFi链路的通信质量也会降低。又或者，当第二链路中的第二设备和/或第三设备通过基站接入通信网络时，由于基站发射的蜂窝信号可能会由于基站分布不佳、多个基站相互干扰、建筑物遮挡、电子设备距离基站较远等情况，导致第二设备和/或第三设备接收到的蜂窝信号强度较弱，甚至接收不到蜂窝信号，从而导致第二链路通信质量较差。
可以理解，当第二链路的通信质量较差时，第二设备和第三设备之间的通话数据包可能会出现丢包、抖动、延时等情况，从而导致通话过程出现语音断续、无声、视频卡顿、甚至通话中断等问题，用户体验不佳。
为此，本申请实施例提供一种通信补偿方法，用于在第一设备和第三设备通过第二设备间接通信的过程中，提高第一设备和第三设备的通信效果，提高用户体验。
图4A是本申请的一个实施例提供的通信补偿方法所适用的系统的示意图。参见图4A所示，该系统包括第一设备、第二设备和第三设备。在该补偿通信系统中，第一设备和第二设备之间通过第一链路连接，第二设备和第三设备之间通过第二链路连接，第一设备和第三设备之间通过第三链路连接。
需要说明的是，在第一设备和第三设备通过第二设备间接通话的场景下(可参见图1所示)，第三设备响应于预设的用户操作(具体参见下文描述)，或者在第一设备和第二设备的通话质量较差的条件下，第三设备与第一设备建立补偿通信链路(即第三链路)，对第一设备和第三设备的通话进行补偿。
可选的，参见图4B所示，第三设备上设置有“通信补偿”设置界面，在该设置界面中，用户可以设置第三设备所助力的设备(简称目标助力设备)，该目标助力设备可以是本申请实施例中的第二设备。另外，针对每一个目标助力设备，用户还可以设置助力业务的类型。示例性的，该助力业务的类型包括音视频通话、文件传输、屏幕共享等。
参见图5所示，第三链路通常为远场通信链路。在该远场通信链路中，第一设备和第三设备可以通过基站或者路由器等接入网设备接入通信网络，并且第一设备所使用的接入网设备可以与第三设备相同，也可以与第三设备不同。例如，第一设备通过基站接入通信网络，第三设备通过路由器接入通信网络。或者，第一设备和第三设备均通过路由器接入通信网络。另外，第一设备和第三设备在接入通信网络之后，可以直接通信，也可以通过服务器或者卫星间接通信。
结合图5可知，若第一设备和/或第三设备不具备直接连接卫星的功能，则第一设备(即UE1)和第三设备(即UE3)之间的辅助链路可以是如下链路中的任一种：
链路3-1：UE1—UE1侧蜂窝基站—服务器/卫星—UE3侧蜂窝基站—UE3。
链路3-2：UE1—UE1侧蜂窝基站—服务器/卫星—UE3侧路由器—UE3。
链路3-3：UE1—UE1侧路由器—服务器/卫星—UE3侧蜂窝基站—UE3。
链路3-4：UE1—UE1侧路由器—服务器/卫星—UE3侧路由器—UE3。
链路3-5：UE1—UE1侧蜂窝基站—UE3侧蜂窝基站—UE3。
链路3-6：UE1—UE1侧蜂窝基站—UE3侧路由器—UE3。
链路3-7：UE1—UE1侧路由器—UE3侧蜂窝基站—UE3。
链路3-8：UE1—UE1侧路由器—UE3侧路由器—UE3。
另外，若第一设备和/或第三设备具备直接连接卫星的功能，则第一设备和第三设备之间的辅助链路还可以是如下链路中的任一种：
链路3-9：UE1—卫星—UE3侧蜂窝基站/UE3侧路由器—UE3。
链路3-10：UE1—UE1侧蜂窝基站—卫星—UE3。
链路3-11：UE1—卫星—UE3。
链路3-12：UE1—卫星—服务器-UE3侧蜂窝基站/UE3侧路由器—UE3。
需要说明的是，在本实施例中，当电子设备(可以是第一设备、第二设备或者第三设备)有两个用户识别模块(subscriber identity module，SIM)卡时，其在通过基站接入通信网络时，可以通过SIM卡1对应的基站接入通信网络，也可以通过SIM卡2对应的基站接入通信网络。在本实施例中，SIM卡可以是实体SIM卡、嵌入式SIM(embedded-SIM，e-SIM)卡、虚拟SIM卡等。
在本实施例中，基于上述描述可知，第一设备和第二设备不仅需要支持蜂窝通信功能，还需要支持无线通信功能。第三设备需要支持无线通信功能，其可以支持蜂窝通信功能，也可以不支持蜂窝通信功能。其中，电子设备支持蜂窝通信功能可以理解为电子设备支持接入核心网，或者说，电子设备上安装有用户识别模块(subscriber identity module，SIM)卡。电子设备支持无线通信功能可以理解为，电子设备支持WiFi、蓝牙、蜂窝数据等无线通信技术中的至少一种。
示例性的，在本实施例中，第一设备、第二设备和第三设备可以是手机、笔记本电脑、台式电脑、智能电视、可穿戴设备(如智能手表)、车载设备、智能家用设备(如智能音箱)、增强现实(augmented reality，AR)/虚拟现实(virtual reality，VR)设备、超级移动个人计算机(ultra-mobile personal computer，UMPC)、上网本、个人数字助理(personal digital assistant，PDA)、耳机等终端设备。本申请实施例对各个电子设备的具体类型不作任何限制。
在本实施例中，通过在第一设备和第三设备之间建立第三链路，可以补偿第一设备和第三设备之间的原本的通话链路(即第一链路和第二链路)，减少第一设备和第三设备通信过程中出现的通话数据包丢包、抖动、延时等情况，提高通话质量过程，减少或者避免通话过程中出现的语音断续、无声、视频卡顿、甚至通话中断等问题，提高用户体验。
下面对第一设备和第三设备之间建立补偿通话的具体过程进行示例性的说明。
图6是本申请的一个实施例提供的通信补偿方法的示意性流程图，涉及第一设备和第三设备建立补偿通话的过程。
S601，第一设备和第二设备建立第一链路。
在一个示例中，第一设备通过核心网呼叫第二设备，当来电在第二设备或者其他设备(如第三设备)被接听之后，第一设备和第二设备之间的第一链路建立成功。
第一设备和第二设备在通话的过程中，通常会使用到实时传输协议(real-time transport protocol，RTP)和实时传输控制协议(real-time control protocol，RTCP)。其中，RTP用于进行多媒体数据包(如通话数据包)的传输，RTCP用于对通话质量进行监控，以及传递会话中的参与者信息。通过RTCP，电子设备可以周期性地向会话的其它参与者(例如通 话对端、核心网设备等)发送RTCP报文，以反馈当前的通话质量。RTCP报文所携带的内容可以根据预先的配置确定，例如可以携带终端发送数据包的数目、丢失的数据包的数目或者数据包的抖动情况等。当然，RTCP报文中也可以包括其它会话所需的参数。因此，第一链路上传输的信息包括RTP格式的通话数据包和RTCP报文。
需要说明的是，在第一链路既包括主链路又包括辅助链路的情况下，第一设备和第二设备可以通常先建立主链路，再基于主链路协商建立辅助链路。或者，第一设备和第二设备也可以先建立辅助链路再建立主链路，在这种情况下，辅助链路的建立是不依赖主链路的，第一设备和第二设备可以通过服务器寻址的方式建立辅助链路(具体参见下文描述)。
S602，第二设备和第三设备建立第二链路。
在一个示例中，第二设备将来电转移到第三设备且第三设备接听来电之后，第二链路建立成功。或者，第二设备在本地接听来电并在通话过程中将通话转移到第三设备之后，第二链路建立成功。
需要说明的是，在第二链路既包括主链路又包括辅助链路的情况下，第二设备和第三设备通常先建立主链路，再基于主链路协商建立辅助链路。需要说明的是，本实施例可以将第一链路中的任一条链路称作主链路，将其余链路称为辅助链路。
S603，第一设备和第三设备通过第一链路和第二链路传输通话数据包。
以用户1使用第一设备，用户2使用第三设备为例，在第一设备和第三设备通话的过程中，第一设备先通过第一链路将用户1的通话数据包发送给第二设备，随后第二设备再通过第二链路再将其发送给第三设备。同理，第三设备先通过第二链路将用户2的通话数据包发送给第二设备，随后第二设备再通过第一链路再将其发送给第一设备，从而实现第一设备和第三设备的通话。
在第一设备向第三设备发送用户1的通话数据包时，若第一链路包括主链路和至少一条辅助链路，则第二设备在通过第一链路接收到通话数据包之后，可以先在本地对通话数据包进行去重与排序，再将通话数据包通过第二链路发送给第三设备。或者，第二设备也可以直接将其通过第二链路发送给第三设备，由第三设备进行去重与排序。在第二链路包括主链路的情况下，无论其是否包括辅助链路，第三设备在通过第二链路接收到通话数据包之后，通常都需要对其进行去重与排序处理。
同理，在第三设备向第一设备发送用户2的通话数据包时，若第二链路包括主链路和至少一条辅助链路，则第二设备在通过第二链路接收到通话数据包之后，可以先在本地对通话数据包进行去重与排序，再将其通过第一链路发送给第一设备。或者，第二设备也可以直接将通话数据包通过第一链路发送给第一设备，由第一设备进行去重与排序。若第一链路包括主链路和至少一条辅助链路，则第一设备在通过第一链路接收到通话数据包之后，需要对其进行去重与排序处理。
换而言之，在第一设备和第三设备通过第二设备间接传输通话数据包的过程中，第二设备可以对通话数据包进行去重与排除，也可以不对其进行去重与排序，本实施例对此不进行限制。
第二设备和第三设备之间在交互通话数据包时，通常无需对通话数据包的内容进行改动，而是将其透传给对方。示例性的，参见图7所示，第二设备和第三设备均包括应用处理器(application processor，AP)、基带处理器(baseband processor，BP)、蓝牙模块和 音频外设(例如麦克风和扬声器)。可选的，当第三设备是智能音箱、智能电视、不支持蜂窝通信的平板电脑等电子设备时，其可以不包括基带处理器。
其中，以语音通话为例，应用处理器包括拨号模块(Dial)、无线接口层(radio interface layer，RIL)和长期演进语音(voice over long-term evolution，VoLTE)通话模块，VoLTE通话模块包括音频对等(vioce peer，Vpeer)模块。基带处理器包括音频模块(Speech)、IMS协议栈和分组数据汇聚协议(packet data convergence protocol，PDCP)模块。
在蜂窝通话过程中，网络侧设备和第二设备之间基于实时传输协议(real-time transport protocol，RTP)传输通话数据包。第二设备的基带处理器在接收到网络侧设备发送的下行通话数据包之后，将其发送给PDCP模块处理，PDCP模块将处理后的下行通话数据包发送给第二设备的IMS协议栈。第二设备的IMS协议栈在对下行通话数据包进行去重与排序后，可以将其通过第二设备的Vpeer发送给第三设备的Vpeer，或者通过第二设备的RIL发送给第三设备的RIL。第三设备在接收到下行通话数据包之后对其进行去重和排序，随后通过音频模块将下行通话数据包处理为脉冲编码调制(pulse code modulation，PCM)码流，并发送给音频外设进行播放。
第三设备的音频外设在采集到上行的PCM码流之后，通过音频模块将其处理为特定形式(如RTP、自适应多速率(adaptive multi-rate，AMR)、增强语音服务(enhance voice services，EVS)、Opus等形式)的上行通话数据包。随后，由第三设备的Vpeer将上行通话数据包发送给第二设备的Vpeer，或者由第三设备的RIL将上行通话数据包发送给第二设备的RIL。第二设备在接收到上行通话数据包之后，通过基带处理器将其发送给网络侧设备。
Vpeer用于处理和传输语音数据。RIL除了能够传输语音数据之外，还能够传输信令等其他数据。第二设备和第三设备在通过Vpeer或者RIL传输数据的过程中，可以基于IP协议建立Socket连接以传输数据，也可以调用蓝牙或者WiFi传输数据。
此外，在一些实施例中，第三设备可能不具备RTP、AMR、EVS等解码功能，因此第二设备可以将上述形式(如RTP形式)的下行通话数据包解析为PCM码流，并给PCM码流添加序列号(sequence number，SN)后发送给第三设备进行播放。此外，第三设备在采集到上行的PCM码流之后，可以给不同段的PCM码流添加序列号，并将PCM码流发送给第二设备。第二设备在接收到PCM码流之后，根据序列号将PCM码流转化为上述形式(如RTP形式)的上行通话数据包，并将其通过网络侧设备(例如基站)发送给第一设备。
S604，第三设备在检测到第一预设条件之后，和第一设备建立第三链路。
需要说明的是，第一设备或者第二设备在检测到第一预设条件之后，也可以通知第三设备与第一设备建立第三链路，本实施例对此不进行限制。
在一些实施例中，第一预设条件为用户操作电子设备上的第一控件。该电子设备可以是第一设备、第二设备或者第三设备。该第一控件用于控制第三设备与第一设备建立连接，以补偿第一设备和第三设备之间的通话。示例性的，参见图8所示，该第一控件可以为“通话补偿”控件。
在另一些实施例中，该第一预设条件可以是接收到预设的触摸手势、隔空控制手持或者语音控制指令等。
在其他一些实施例中，第一预设条件可以是第二设备将通话转移到第三设备。换而言之，第三设备接听第二设备转移的通话后，立即建立第三链路。
在其他一些实施例中，第一预设条件为第二链路的通话质量低于阈值。例如，第一链路和/或第二链路的丢包率高于丢包率阈值(例如10％)；和/或，第一链路和/或第二链路的信噪比低于信噪比阈值(例如10分贝)；和/或，第一链路和/或第二链路的通话数据包的时延高于时延阈值(例如120ms)等，本实施例对此不进行具体限制。
在其他一些实施例中，该第一预设条件可以是电子设备进入特定区域(如接入通信质量差的小区等)，或者即将进入该特定区域。该电子设备可以是第一设备、第二设备或者第三设备。
在其他一些实施例中，用户可以基于功耗或者资费的考虑控制建立补偿链路。基于此，第二预设条件可以为电子设备开启了补偿链路自动建立功能。在建立补偿链路之后，第一设备和第二设备可以降低通话数据包在第一链路上的传输频度，甚至释放第一链路，从而节约第一设备和第二设备的功耗和蜂窝通话费用。该电子设备可以是第一设备、第二设备或者第三设备。
需要说明的是，第三链路可以只包括一条主链路，也可以在包括主链路的基础上，同时包括至少一条辅助链路。在第三链路既包括主链路又包括辅助链路的情况下，第一设备和第三设备可以通常先建立主链路，再基于主链路、服务器寻址、近场发现等方式协商建立辅助链路。需要说明的是，本实施例可以将第三链路中的任一条链路称作主链路，将其余链路称为辅助链路。
S605，第一设备和第三设备在使用第一链路和第二链路传输通话数据包的同时，使用第三链路传输通话数据包。
可以理解，第三链路建立成功之后，第一设备和第三设备通过两条路径传输通话数据包，一条路径为第一链路和第二链路组成的链路群所对应的传输路径(可称作路径1)，另一条路径为第三链路对应的传输路径(可称作路径2)。
在第一设备和第三设备通话的过程中，以用户1使用第一设备，用户2使用第三设备为例，第一设备在采集到用户1的通话数据包之后，将通话数据包同时通过路径1和路径2发送给第三设备，第三设备对两路通话数据包进行去重与排序之后，播放用户1的音视频。同理，第三设备在采集到用户2的通话数据包之后，将通话数据包同时通过路径1和路径2发送给第一设备，第一设备对两路通话数据包进行去重与排序之后，播放用户2的音视频。
在本实施例中，发送端在采集到通话数据包之后，可以通过如下方式1～方式3中的任一种在路径1和路径2之间分配通话数据包，从而将通话数据包发送接收端。应理解，当第一设备是发送端时，第三设备是接收端；当第三设备是发送端时，第一设备是接收端。
方式1：参见图9A，发送端在生成通话数据包之后，对其全部进行复制，并通过路径1和路径2同时传输所有通话数据包，以减少接收端缺失的通话数据包的数目。可以理解，在方式1中，路径1和路径2所述传输的通话数据包全部相同。
方式2：参见图9B，当路径1出现拥塞时，发送端可以减少分配给路径1的通话数据包的数量，并通过路径2对路径1缺失的通话数据包进行补偿发送，以减少路径1的数据传输压力。例如，路径1每发送4个通话数据包丢弃1个通话数据包，并通过路径2补偿 该通话数据包，以减少路径1的数据传输压力。可以理解，在方式2中，路径1和路径2所述传输的通话数据包完全不相同。
需要说明的是，在一些实施例中，在路径1的通话质量非常差的情况下或者基于功耗/蜂窝通话资费的考虑，第一设备和第三设备可以释放路径1，并通过路径2传输所有通话数据包。或者，在路径1的通话质量非常差的情况下，第一设备和第三设备也可以维持路径1存在，但不使用路径1传输通话数据包，而是通过路径2传输所有通话数据包。
方式3：参见图9C所示，当主链路出现拥塞时，发送端可以将路径1中的通话数据包复制一部分通过路径2传输，同时减少路径1中通话数据包的数量，以减少路径1的数据传输压力。可以理解，在方式3中，路径1和路径2所述传输的通话数据包仅有部分相同。
需要说明的是，在方式1～3中，路径1传输的所有通话数据包，与路径2传输的所有通话数据包的总和，包括了发送端采集的所有通话数据包。
通过本实施例提供的方法，第一设备和第三设备通过建立第三链路，可以补偿第一设备和第三设备之间的原本的通话链路(即第一链路和第二链路)，减少第一设备和第三设备通信过程中出现的通话数据包丢包、抖动、延时等情况，提高通话质量过程，减少或者避免通话过程中出现的语音断续、无声、视频卡顿、甚至通话中断等问题，提高用户体验。
此外，对于第一链路、第二链路和第三链路中的主链路，可以先建立第一链路的主链路，再建立第二链路的主链路；也可以先建立第二链路的主链路，再建立第一链路的主链路，而第三链路的主链路需要在第一链路的主链路和第二链路的主链路均建立成功之后才能建立。
本申请对第一链路、第二链路和第三链路中辅助链路的建立顺序不进行限制。例如，可以先建立第二链路的辅助链路，再建立第一链路的辅助链路，最后建立第三链路的辅助链路。或者，可以先建立第一链路的辅助链路，再建立第三链路的辅助链路，最后建立第二链路的辅助链路。另外，第一链路的辅助链路和第二链路的辅助链路可以在第三链路建立成功之前建立，也可以在第三链路建立成功之后建立，本实施例对此不进行限制。
在一个示例中，第一设备、第二设备和第三设备之间各个链路的建立流程可以参见图10中所示，该流程具体包括S1001～S1005。
S1001，第一设备和第二设备建立第一链路的主链路。
S1002，第二设备和第三设备建立第二链路的主链路。
S1003，第一设备和第二设备建立第一链路的辅助链路。
S1004，第二设备和第三设备建立第二链路的辅助链路。
S1005，第一设备和第三设备建立第三链路。该第三链路包括主链路，可以包括辅助链路，也可以不包括辅助链路。
下面对第一设备和第三设备建立第三链路的具体过程进行示例性说明。
在本实施例中，第一设备和第三设备可以通过如下方式中的任一种建立第三链路：(一)通过第一链路和第二链路协商建立第三链路；(二)基于寻址服务器建立第三链路。具体如下所示。
(一)通过第一链路和第二链路协商建立第三链路
图11是本申请的一个实施例提供的第三链路的建立流程示意图，该流程具体包括如下步骤S1101～S1106。
S1101，第三设备检测到第一预设条件。该第一预设条件的具体内容请参见前文描述，本实施例在此不再赘述。
S1102，第三设备向第二设备发送补偿链路建立请求。
由于第二设备和第三设备之间已建立了第二链路，因此，第三设备可以将补偿链路建立请求通过第二链路发送给第二设备。当第二链路既包括主链路又包括辅助链路时，第三设备可以使用主链路发送补偿链路建立请求，也可以通过辅助链路发送补偿链路建立请求。
该补偿链路建立请求用于请求与第一设备建立补偿链路(即第三链路)，并携带补偿链路的链路类型和第三设备的通信地址。根据补偿链路的链路类型的不同，第三设备携带在补偿链路建立请求中的地址信息各不相同。
在一些实施例中，当补偿链路的链路类型为服务器链路或者卫星链路时，该通信地址可以是SessionID、服务器分配的临时ID、手机号码、互联网协议(internet protocol，IP)地址IP和Port(端口号)、email地址等。
在另一些实施例中，当补偿链路的链路类型为P2P链路时，该通信地址包括第三设备的通信标识(即通信ID)，其中，通信ID为经过网络地址转换(network address translators，NAT)后的IP地址和Port。需要说明的是，当第三设备需要与其他设备(如第一设备)通过P2P连接时，由于两个电子设备分别处于不同的网关，其无法直接根据对方的IP地址相互访问。此时，电子设备可以采用网络地址转换NAT技术将自身的IP地址和端口号转换为可以被对方访问的IP地址和端口号(即上述通信ID)，使两个电子设备能够连接成功。通过第三设备的通信ID，其他电子设备(如第一设备)可以使用WiFi访问第三设备，也可以使用蜂窝数据访问第三设备。
可选的，补偿链路建立请求也可以不携带补偿链路的链路类型，而同时携带IP地址和Port、通信ID、账号ID等多个第三设备的通信地址。需要说明的是，当补偿链路建立请求中不携带链路类型时，第一设备和第三设备之间按照默认的通信方式建立补偿链路。
另外，补偿链路建立请求中还可以携带补偿链路所要传输的数据类型，该数据类型可以是语音、视频、文件、Raw_data(即原始数据)等。根据数据类型的不同，第一设备和第三设备之间可以采用不同的通信方式建立补偿链路。例如，当补偿链路所要传输的数据是语音数据时，第一设备和第三设备之间可以建立蓝牙链路，也可以建立WiFi链路。当补偿链路所要传输的数据是视频数据时，蓝牙链路由于带宽的限制无法满足数据传输要求，因此，第一设备和第三设备之间可以建立WiFi链路。
可选的，该补偿链路建立请求中还包括协商信令，用于与第一设备协商通话数据包在补偿链路的传输规则。示例性的，该传输规则可以包括：在补偿链路仅传输第一设备发送给第三设备的通话数据包，或者，仅传输第三设备发送给第一设备的通话数据包。又例如，该传输规则可以为S605示出的方式1～方式3中的任一种。
S1103，第二设备向第一设备发送补偿链路建立请求。
由于第一设备和第二设备之间已建立了第一链路，因此，第二设备可以将补偿链路建立请求通过第一链路发送给第一设备。当第一链路既包括主链路又包括辅助链路时，第二设备可以使用主链路发送补偿链路建立请求，也可以通过辅助链路发送补偿链路建立请求。
在一些实施例中，第二设备可以将补偿链路建立请求通过第一链路上传输的RTCP报文发送给第一设备。
具体地，基于前文描述可知，第一设备和第二设备之间通过第一链路通信，且第一链路上传输的信息包括RTP通话数据包和RTCP报文。因此，第二设备在接收到第三设备发送的补偿链路建立请求之后，可以将该补偿链路建立请求写入第一链路的RTCP报文中发送给第一设备。
RTCP定义了多种类型的RTCP报文，用以传输不同的控制信息，其中包括源描述项(source description items，SDES)报文。SDES报文用于对发送RTCP报文的源进行描述。参见图12A所示，SDES报文包括一个报头(header)、零个或者多个报告块(chunk)。其中，报头依次包括RTP和RTCP的版本号(Version，V)、填充位(Padding，P)的个数、信源报告块(Source Count，SC)的个数、包类型(Packet Type，PT)以及报文的长度(length)。例如，在图12A所示的SDES报文中，V＝2，P＝1，SC＝5，PT＝SDES＝202，length＝16。报告块包括同步信源/特约信源(Synchronization source/Contributing source，SSRC/CSRC)标识符(identifier)、零个及零个以上源描述项(Item)。源描述项携带关于SSRC/CSRC的信息。源描述项还包括多种类型，例如规范的终端标志(Canonical Name，CNAME)源描述项、用户名源描述项、电子邮件地址源描述项、电话号码源描述项、用户地址定位源描述项、工具源描述项、通知/状态源描述项、私人扩展源描述项等。
因此，第二设备可以将补偿链路建立请求写入RTCP报文中的上述任意一种源描述项中，并通过RTCP报文发送给第一设备。以第二设备将补偿链路建立请求写入CNAME源描述项为例，CNAME源描述项的结构可以例如图12B所示。
在另一些实施例中，第二设备可以将补偿链路建立请求写入RTP通话数据包中发送给第一设备。具体地，第二设备可以将补偿链路建立请求以水印的方式叠加在通话数据中发送给第一设备。或者，将补偿链路建立请求写入RTP通话数据包的扩展头中，发送给第一设备。
在其他一些实施例中，在第一设备和第二设备已通过其他通信方式(例如WiFi通信、服务器中转通信、数据业务通信、卫星通信等)连接之后，第二设备可以通过该通信方式向第一设备发送补偿链路建立请求。
需要说明的是，当第二设备通过第一链路中的辅助链路向第一设备发送补偿链路建立请求时，第二设备可以采用自定义的格式封装补偿链路建立请求，并将其发送给第一设备。本实施例对该自定义的格式不进行限制。
S1104，第一设备接收到补偿链路建立请求之后，向第二设备发送补偿链路建立响应。
在本实施例中，该补偿链路建立响应用于指示第一设备同意与第三设备建立补偿链路，并包括第一设备的通信地址。示例性的，该通信包括第一设备的IP地址和Port，或者，第一设备的通信ID(即经过NAT转换过的IP地址和Port)。可选的，该补偿链路建立响应还包括第三链路上通话数据包的传输规则的协商结果。
通常情况下，用户可以根据需求开启或者关闭第一设备的通话补偿功能(包括建立第三链路的功能)和无线通信功能，例如WiFi、蓝牙、数据业务等。应理解，在通话补偿功能和无线通信功能均开启的情况下，第一设备支持建立第三链路。若通话补偿功能或者无线通信功能中的任一个未开启，则第一设备不支持建立第三链路。
若第一设备支持建立第三链路，则第一设备在接收到补偿链路建立请求之后，向第二设备发送补偿链路建立响应，以由第二设备将该补偿链路建立响应转发给第三设备。在本 实施例中，第一设备也可以通过第一链路的主链路或者辅助链路中的RTCP报文，或者RTP通话数据包向第二设备发送链路建立响应。例如，第一设备可以将补偿链路建立响应写入RTCP报文的SEDE字段，或者，将补偿链路建立响应写入RTP通话数据包的数据部分发送给第二设备；或者，将补偿链路建立请求写入RTP通话数据包的扩展头中，发送给第二设备。具体可参见第二设备向第一设备发送补偿链路建立请求的过程，本实施例在此不在赘述。
需要说明的是，当第一设备通过第一链路中的辅助链路向第二设备发送补偿链路建立响应时，第二设备可以采用自定义的格式封装补偿链路建立响应，并将其发送给第一设备。本实施例对该自定义的格式不进行限制。
若第一设备不支持建立第三链路，则不向第二设备发送该补偿链路建立响应(即不响应第二设备)，那么第二设备自然也无法向第三设备转发该补偿链路建立响应。若第三设备在预设时间内(如5S内)未接收到第一设备返回的补偿链路建立响应，则确定第三链路建立失败。或者，若第一设备不支持建立第三链路，则向第二设备发送链路建立失败通知，以由第二设备将其转发给第三设备。第三设备在接收到该链路建立失败通知之后，停止建立第三链路。第一设备发送链路建立失败通知的方式，可参见第一设备发送补偿链路建立响应的方式，本实施例在此不再赘述。
另外，若补偿链路建立请求中携带第三链路的数据传输规则，且第一设备不支持该数据传输规则，那么第一设备也可以不响应补偿链路建立请求，或者也可以向第二设备发送链路建立失败通知。
可选的，第三设备在确定第三链路建立失败之后，可以对用户进行提示。示例性的，第三设备可以通过显示提示信息来提示第三链路建立失败。该提示信息可以为“补偿链路建立失败”。或者，第三设备也可以通过播放语音来提示用户第三链路建立失败，该语音可以为“补偿链路建立失败”。
S1105，第二设备向第三设备发送补偿链路建立响应。
由于第二设备和第三设备之间通过第二链路连接，且第二链路是WiFi、蓝牙等无线通信链路，第二设备可以直接将补偿链路建立响应通过第二链路发送给第三设备，本实施例在此不再赘述。
S1106，第一设备和第三设备建立第三链路。
应理解，第一设备在接收到补偿链路建立请求之后，即获取到了第三设备的通信地址。第三设备在接收到补偿链路建立响应之后，即获取到了第一设备的通信地址。基于此，第一设备和第三设备根据对方的通信地址即可建立第三链路。
需要说明的是，在第三链路中，参见表1所示，第一设备和第三设备接入无线网络的方式可以相同也可以不同。例如，第一设备可以使用数据业务(即蜂窝数据)接入无线网络，第三设备可以使用WiFi接入蜂窝网络，从而在第一设备和第三设备之间建立第三链路。
表1第三链路建立方式

此外，可选的，在第一设备和第三设备协商建立第三链路的过程中，也可以不协商第三连路上的数据传输规则，即补偿链路建立请求中不携带第三设备支持的数据传输规则，链路建立响应中不携带数据传输规则的协商结果。而是在第三链路建立好之后，在传输通话数据包之前，在原通话链路(即第一链路和第二链路)或者第三链路上协商数据传输规则。若协商成功，则继续使用该第三链路传输通话数据包，若协商失败，则断开第三链路。
(二)基于寻址服务器建立第三链路
寻址服务器用于存储电子设备的唯一标识信息和通信地址的对应关系。示例性的，该唯一标识信息可以是电话号码、微信号、畅连号、email地址等，本实施例对此不进行限制。该对应关系可以是由第二设备建立的，也可以是由第三设备建立的。下面分别对其进行说明。
下面以该唯一标识信息是电话号码为例，结合不同的示例对第一设备和第三设备基于寻址服务器建立第三链路的过程进行具体说明。
示例1，第二设备建立电子设备的唯一标识信息和通信地址的对应关系，第一设备和第三设备基于该对应关系建立第三链路。
通常情况下，支持蜂窝通话功能的电子设备(如手机)在每次开机、呼叫其他电子设备或者接收到其他电子设备的来电信息之后，可以在寻址服务器进行注册，将其电话号码和通信地址按照预设的对应关系存储在寻址服务器。例如，参见表2，第一设备在开机后，将其电话号码(即号码1)和通信地址(即地址1-1)存储在寻址服务器中。第二设备在开机后，将其电话号码(即号码2)和通信地址(即地址2-1)存储在寻址服务器中。另外，若电子设备(如第二设备)通过无线网络连接了其他电子设备(如第三设备)，那么，第二设备还需要在寻址服务器中建立并存储第二设备的电话号码(即号码2)与第三设备的通信地址(即地址2-2)以及第三设备的设备标识(即标识3)的对应关系。该设备标识用于唯一标识电子设备的，示例性的，该设备标识可以是设备ID等。
在一个示例中，该对应关系可以如表2所示。通过该对应关系，电子设备根据目标通信设备的电话号码，可以查询到目标设备的通信地址。例如，第二设备根据第一设备的电话号码(号码1)也可以查询到第一设备的通信地址为地址1-1。
表2对应关系表
基于通话中的第一设备、第二设备和第三设备已在寻址服务器中注册电话号码和通信地址的对应关系，第一设备和第三设备可以基于寻址服务器建立第三链路。
图13是本申请另一个实施例提供的第三链路的建立流程示意图，涉及第一设备和第三设备基于上述寻址服务器建立第三链路的过程，具体包括如下步骤S1301～S1311。
S1301，第三设备检测到第一预设条件。
该第一预设条件的具体内容请参见前文描述，本实施例在此不再赘述。
S1302，第三设备向第二设备发送补偿链路建立请求，该补偿链路建立请求携带第三设备的标识信息。
在本实施例中，第三设备通过第二链路向第二设备发送补偿链路建立请求，用于请求与第一设备建立第三链路。第三设备的标识信息用于唯一标识第三设备，示例性的，该标识信息可以是设备ID等。
S1303，第二设备在接收到补偿链路建立请求之后，向寻址服务器发送第一查询请求，该第一查询请求用于查询第一设备的通信地址。
在本实施例中，该第一查询请求携带第一设备的电话号码。应理解，第一设备和第二设备在通话的过程中，相互是知道对方的电话号码的。基于此，第二设备在从寻址服务器查询第一设备的通信地址时，可以将第一设备的电话号码携带在第一查询请求中发送给寻址服务器，以便寻址服务器根据该电话号码查询出第一设备的通信地址。
S1304，寻址服务器根据第一查询请求，查询第一设备的通信地址。
由于寻址服务器中存储有第一设备的电话号码和通信地址的对应关系，因此，寻址服务器在接收到第一查询请求之后，根据该请求中携带的第一设备的电话号码和该对应关系，即可确定出第一设备的通信地址。以第一设备的电话号码是号码1为例，根据表示1示出的对应关系，寻址服务器可以确定出第一设备的通信地址为地址1-1。
S1305，寻址服务器向第二设备返回第一设备的通信地址。
S1306，第二设备向第三设备发送第一设备的通信地址。
S1307，第二设备向第一设备发送补偿链路建立请求。
S1308，第一设备向寻址服务器发送第二查询请求，该第二查询请求用于查询第三设备的通信地址。该第二查询请求携带第二设备的电话号码，以及第三设备的标识信息。
S1309，寻址服务器根据第二查询请求，查询第三设备的通信地址。
由于寻址服务器中存储有第二设备的电话号码、第三设备的标识信息和第三设备的通信地址的对应关系，因此，第一设备在接收到第二查询请求之后，根据该第二查询请求和该对应关系，即可确定出第三设备的通信地址。以第二设备的电话号码是号码2，第三设备的标识信息是标识3为例，根据表示1示出的对应关系，寻址服务器可以确定出第三设备的通信地址为地址2-2。
S1310，寻址服务器向第一设备返回第三设备的通信地址。
S1311，第一设备和第三设备根据第一设备的通信地址和第三设备的通信地址，建立第三链路。
需要说明的是，在上述过程中，S1307～S1310在S1302之后执行，并在S1311之前执行即可，本实施例对此不进行限制。
可选的，在第一设备和第三设备通过服务器建立第三链路的情况下，若第一设备仅需 要向第三设备发送通话数据包，而第三设备无需向第一设备发送通话数据包，则第一设备可以仅获取到第三设备的通信地址，并向第三设备单向发送数据。或者，若第三设备仅需要向第一设备发送通话数据包，而第一设备无需向第三设备发送通话数据包，则第三设备可以仅获取到第一设备的通信地址，并向第一设备单向发送数据。
或者，在第一设备和第三设备通过广播的方式通信的情况下，广播消息接收方获知广播消息发送方的地址即可。例如，第三设备接收第一设备广播的消息时，第三设备获知第一设备的通信地址即可。基于此，第一设备在获取到一个广播消息后，若该广播消息携带第一设备的通信地址，则对该广播消息进行进一步处理。
在另一些实施例中，在例如表2所示的对应关系表中，该设备标识也可以用于指示设备的业务处理状态，例如“通话未转移”、“通话已转移至其他设备”、“已接听转移的通话”、“空闲”等。基于此，寻址服务器在根据第二设备的电话号码查询通话设备的通信地址时，可以将实际接听电话的电子设备的通信地址作为地址查询结果。例如，业务处理状态为“通话未转移”的第二设备的通信地址，或者业务状态为“已接听转移的通话”的第三设备的通信地址。
示例2，第三设备建立电子设备的唯一标识信息和通信地址的对应关系，第一设备和第三设备基于该对应关系建立第三链路。
通常情况下，支持蜂窝通话功能的电子设备(如手机)在每次开机、呼叫其他电子设备或者接收到其他电子设备的来电信息之后，可以在寻址服务器进行注册，将其电话号码和通信地址按照预设的对应关系存储在寻址服务器。需要说明的是，若已经在寻址服务器注册的电子设备将来电转移到其他电子设备之后，需要将对应关系中的通信地址更新为该其他电子设备的通信地址。
以第一设备和第二设备通话为例，参见表3-1所示的对应关系表，第一设备可以将第一设备的电话号码(如号码1)和第一设备的通信地址(如地址1)的对应关系存储在寻址服务器中。第二设备可以将第二设备的电话号码(如号码2)和第二设备的通信地址(如地址2)的对应关系存储在寻址服务器中。
表3-1对应关系表
若第二设备在通话过程中，将本次通话转移到了第三设备进行接通，那么第三设备需要将号码2与地址2的对应关系替换为号码2与地址3(即第三设备的通信地址)的对应关系。替换后的对应关系可以参见表3-2所示。
表3-2对应关系表
基于此，第三设备在检测到第一预设条件之后，可以基于更新后的对应关系表(如表3-2)建立补偿链路。具体如下所示。
图14是本申请又一个实施例提供的第三链路的建立流程示意图，涉及第一设备和第三设备基于上述寻址服务器建立第三链路的过程，具体包括如下步骤S1401～S1409。
S1401，第三设备检测到第一预设条件。该第一预设条件的具体内容请参见前文描述，本实施例在此不再赘述。
S1402，第三设备向寻址服务器发送第一查询请求，该第一查询请求用于查询第一设备的通信地址。
在本实施例中，该第一查询请求携带第一设备的电话号码。应理解，第一设备和第二设备在通话的过程中，相互是知道对方的电话号码的，第二设备可以将第一设备的电话号码发送给第三设备。基于此，第三设备在从寻址服务器查询第一设备的通信地址时，可以将第一设备的电话号码携带在第一查询请求中发送给寻址服务器，以便寻址服务器根据该电话号码查询出第一设备的通信地址。
S1403，寻址服务器根据第一查询请求，查询第一设备的通信地址。
由于寻址服务器中存储有第一设备的电话号码和通信地址的对应关系，因此，寻址服务器在接收到第一查询请求之后，根据该请求中携带的第一设备的电话号码和该对应关系，即可确定出第一设备的通信地址。以第一设备的电话号码是号码1为例，根据表3-2示出的对应关系，寻址服务器可以确定出第一设备的通信地址为地址1。
S1404，寻址服务器向第三设备返回第一设备的通信地址。
S1405，第三设备通过第二设备向第一设备发送补偿链路建立请求。
在本实施例中，该补偿链路建立请求用于请求第一设备与第三设备建立第三链路。
由于第一设备和第二设备之间已经建立了第一链路，第二设备和第三设备之间已经建立了第二链路，因此，在S1405中，第三设备先通过第二链路将补偿链路建立请求发送给第二设备，再由第二设备将补偿链路建立请求通过第一链路发送给第一设备。
S1406，第一设备向寻址服务器发送第二查询请求，该第二查询请求用于查询第三设备的通信地址。
在本实施例中，该第二查询请求携带第二设备的电话号码。
S1407，寻址服务器根据第二查询请求，查询第三设备的通信地址。
由于寻址服务器中存储有第二设备的电话号码和第三设备的通信地址的对应关系，因此，寻址服务器在接收到第二查询请求之后，根据该第二查询请求和该对应关系，即可确定出第三设备的通信地址。以第二设备的电话号码是号码2为例，根据表3-2示出的对应关系，寻址服务器可以确定出第三设备的通信地址为地址3。
S1408，寻址服务器向第一设备返回第三设备的通信地址。
S1409，第一设备和第三设备根据第一设备的通信地址和第三设备的通信地址，建立第三链路。
应理解，在上述过程中，S1405～S1408在S1401之后执行，并在S1409之前执行即可，本实施例对此不进行限制。
另外，若第二设备将本次通话转移到多个第三设备进行通话，则第二设备可以在寻址服务器中建立第二设备的电话号码和各个第三设备的通信地址的对应关系。基于此，若任 意一个第三设备检测到第二预设条件，则每个第三设备都可以根据该对应关系和第一设备建立一个补偿链路。
需要说明的是，上述本申请实施例提供的补偿链路建立方法还适用于第一设备、第二设备和第三设备进行信号接力通信的场景。例如，结合如图1所示，在第一设备和第二设备通信的过程中，第二设备实际使用是的第三设备的SIM卡信息访问蜂窝网络。换而言之，第二设备实际为信号接力设备，其在第一设备和第三设备通信的过程中负责使用第三设备的SIM卡信息接入蜂窝网络，并在第一设备和第三设备之间中转传输通信数据包。在信号接力通信过程中，若第三设备检测到第一预设条件，则第三设备也可以和第一设备建立上述补偿通信链路，补偿通信链路的具体建立方式参见前文所示，本实施例在此不再赘述。
下面结合具体的应用场景对上述本实施例提供的通话补偿方法进行示例性说明。
场景一：手机1和手机2通话，手机2将通话转换到近场的笔记本电脑。
参见图15A所示，手机1由用户1使用，手机2和笔记本电脑由用户2使用。用户2在使用笔记本电脑办公的过程中，可能不方便使用手机接听电话。基于此，若手机2接收到手机1的来电，手机2可以将通话转移到笔记本电脑进行。在通话过程中，手机1和手机2之间通过第一链路连接，手机2和笔记本电脑之间通过第二链路连接。
当笔记本电脑检测到第一预设条件(如通话质量不佳)之后，笔记本电脑和手机1建立第三链路，通过第三链路对原本的通话链路(即第一链路和第二链路)进行通话补偿，以提高手机1和笔记本电脑的通话质量。
场景二：手机1和手机2通话，手机2将通话转换到近场的车机。
参见图15B所示，手机1由用户1使用，手机2和车机由用户2使用。用户2在驾驶车辆的过程中，通常不方便使用手机接听电话。基于此，若手机2接收到手机1的来电，手机2可以将通话转移到车机进行。在通话过程中，手机1和手机2之间通过第一链路连接，手机2和车机之间通过第二链路连接。
当车机检测到第一预设条件(如通话质量不佳)之后，车机和手机1建立第三链路，通过第三链路对原本的通话链路(即第一链路和第二链路)进行通话补偿，以提高手机1和车机的通话质量。在该示例中，车机可以使用车机的蜂窝系统(如车载智能终端(telematics BOX，TBOX))或者车载卫星系统等与手机建立第三链路。应理解，当车机的蜂窝系统与手机2的蜂窝系统所对应的运营商不同时，车机可以利用运营商布网的互补性，对手机1和车机的通话进行补偿。
场景三：手机1呼叫手机2，手机2将来电转移到近场家人的手机3。
参见图15C所示，手机1由用户1使用，手机2和手机3由用户2使用，手机3可以是用户2家人的电子设备。若手机2接收到手机1的来电，手机2可以将通话转移到手机3进行。在通话过程中，手机1和手机2之间通过第一链路连接，手机2和手机3之间通过第二链路连接。
当手机3检测到第一预设条件(如通话质量不佳)之后，手机1和手机3建立第三链路，通过第三链路对原本的通话链路(即第一链路和第二链路)进行通话补偿，以提高手机1和手机3的通话质量。
场景四：手机1呼叫手机2的副卡，手机2将来电转移到远场的智能手表。
参见图15D所示，手机1为本次通话的主叫设备，手机2为本次通话的被叫设备。手 机2安装有SIM卡1(主卡)和SIM卡2(副卡)，智能手表安装有eSIM卡3，SIM卡1和eSIM卡3对应同一电话号码(即智能手表和手机2是一号多终端设备)。当手机2与智能手表建立近场连接(如蓝牙连接)之后，智能手表的调制解调器(Modem)下电，断开与核心网设备的交互。当手机2与智能手表的近场连接断开之后，智能手表的Modem上电，启动与核心网设备的交互。
当手机1呼叫手机2的SIM卡2(副卡)时，手机2也可以和智能手表建立第二链路，并通过第二链路将来电转移到智能手表上，以便用户接听。在手机1和智能手表通话的过程中，手机1和手机2之间通过第一链路连接，手机2和智能手表之间通过第二链路连接。
当智能手表检测到第一预设条件(如通话质量不佳)之后，智能手表使用eSIM卡3的数据业务功能与手机1建立第三链路，通过第三链路对原本的通话链路(即第一链路和第二链路)进行通话补偿，以提高手机1和智能手表的通话质量。
或者，当智能手表检测到第一预设条件(如通话质量不佳)之后，若智能手表具备WiFi通信功能时，智能手表使用WiFi与手机1建立第三链路，通过第三链路对原本的通话链路(即第一链路和第二链路)进行通话补偿，以提高手机1和智能手表的通话质量。
在第一设备和第二设备通话的过程中，不仅第二设备可以将通话转移到第三设备，第一设备也可以将通话转移到第四设备。具体如下所示。
图16是本申请的一个实施例提供的通话转移场景下的设备间连接示意图。参见图16所示，当第一设备和第二设备均转移通话之后，第一设备和第二设备之间通过第一链路连接，第二设备和第三设备之间通过第二链路连接，第一设备和第四设备之间通过第四链路连接。第四链路的具体内容可参见上述关于第二链路的介绍，本实施例在此不再赘述。可以理解，在第一设备和第二设备均转移通话之后，用户1实际使用的设备是第四设备，用户2实际使用的设备是第三设备。
在通话过程中，第四设备采集用户1的通话数据包，并依次将通话数据包通过第四链路、第一链路和第二链路发送给第三设备，并由第三设备播放通话数据包。同理，第三设备采集用户2的通话数据包，并依次通过第二链路、第一链路和第四链路发送给第四设备，并由第四设备播放通话数据包。
基于图16所示的通话转移场景，第四设备在检测到第一预设条件(参见前文描述)之后，也可以在第四设备和第三设备之间建立补偿链路(可参见图17所示)。
图18是本申请的一个实施例提供的补偿链路的建立过程示意图，涉及第四设备和第三设备通过第一链路、第二链路和第四链路协商建立补偿链路的过程。该流程具体包括如下步骤S1801～S1808。
S1801，第三设备检测到第一预设条件。
该第一预设条件的具体内容请参见前文描述，本实施例在此不再赘述。需要说明的是，第一设备、第二设备或者第四设备检测到第一预设条件之后，也可以通知第三设备执行后续步骤，本实施例对此不进行限制。
S1802～1804，第三设备依次通过第二设备、第一设备向第四设备发送补偿链路建立请求。
换而言之，第三设备依次通过第二链路、第一链路和第四链路向第四设备发送补偿链路建立请求。该补偿链路建立请求携带第三设备的地址信息，具体参见S1102所示，本实 施例在此不再赘述。
S1805～S1807，第四设备依次通过第一设备、第二设备向第三设备发送补偿链路建立响应。
换而言之，第四设备依次通过第四链路、第一链路和第二链路向第三设备发送辅助链路建立响应。该辅助链路建立请求携带第一设备的地址信息，具体参见S1104所示，本实施例在此不再赘述。
另外，在S1802～S1807中，补偿链路建立请求和补偿链路建立响在不同链路上的发送方式可参见前文描述，本实施例在此不再赘述。
S1808，第四设备和第三设备建立第三链路。
在本实施例中，第四设备和第三设备根据相互的通信地址建立第三链路。该第三链路即为原通话链路(即第四链路、第一链路和第二链路)的补偿链路。
另外，第一设备和第三设备还需要协商补偿链路(即第三链路)的数据传输规则。该数据传输规则具体可参见前文描述，此处不再赘述。
在一些实施例中，第四设备和第三设备可以在建立补偿链路的过程中，将传输规则协商信息在补偿链路建立请求和补偿链路建立响应中，以协商数据传输规则。若数据传输规则协商失败，则第四设备和第三设备确定补偿链路建立失败。
在另一些实施例中，第四设备可以和第三设备在建立好补偿链路(第三链路)之后，基于原通话链路(即第四链路、第一链路和第二链路)协商数据传输规则。或者，基于补偿链路(即第三链路)协商数据传输规则，本实施例对此不进行限制。若数据传输规则协商成功，则使用该补偿链路传输通话数据包，若协商失败，则断开补偿链路。
图19是本申请其他实施例提供的补偿通信场景的示意图。参见图19所示，在第四设备和第三设备通过第一设备和第二设备间接通信的过程中，第一设备和第三设备之间还可以建立第五链路，第二设备和第四设备之间还可以建立第六链路。第五链路和第六链路的建立过程具体参见前文描述，本实施例在此不再赘述。
基于图19所示的设备间的连接方式，第四设备和第三设备之间的数据传输路径可以同时包括如下路径1-1～路径1-4：
路径1-1：第四链路—第一链路—第二链路。即第四设备依次通过第一设备和第二设备向第三设备发送通信数据包，对应地，第三设备依次通过第二设备和第一设备向第四设备发送通信数据包。
路径1-2：第四链路—第五链路。即第四设备和第三设备通过第一设备间接地传输通信数据包。
路径1-3：第六链路—第二链路。即第四设备和第三设备通过第二设备间接地传输通信数据包。
路径1-4：第三链路。即第四设备和第三设备直接传输通信数据包。
通过本实施例提供的方法，第三设备和第四设备在通话的过程中，可以通过多条路径进行通话补偿，有助于提高通话质量。
第二设备在接收到第一设备的来电之后，也可以不将通话转移到其他电子设备，而是在本地接听电话，即双方用户实际使用的电子设备是第一设备和第二设备。在第一设备和第二设备通话的过程中，第一设备和第二设备需要通过基站与核心网设备连接，建立核心 网链路，以传输通话数据包。然而，基站的网络信号可能会由于网络分布不佳、多个网络相互干扰、建筑物遮挡等情况，导致电子设备接收到的信号强度较弱，甚至接收不到信号。因此，在通话过程中，通话链路中的通话数据包可能会出现大量丢失、时延过大或者抖动过大的情况，导致通话语音断续、无声、甚至通话中断等问题。
为此，本申请还提供一种通信补偿方法，用于在第一设备和第二设备通过核心网链路通话的过程中，通过补偿链路对当前通话进行通话补偿，提高第一设备和第二设备的提高通话质量。
图20A为本申请的一个实施例提供的通信补偿系统的结构示意图。该系统包括第一设备、第二设备和第三设备，第一设备和第二设备之间通过第一链路(包括核心网链路)连接。在第一设备和第二设备通话的过程中，若第二设备检测到第二预设条件，则第二设备和第三设备建立第二链路(若已有第二链路则无需重新建立)，并且控制第一设备和第三设备建立第三链路。或者，若第一设备检测到第二预设条件，那么第一设备可以通知第二设备与第三设备建立第二链路(若已有第二链路则无需重新建立)，并且控制第一设备和第三设备建立第三链路。其中，第二链路和第三链路构成第一链路的补偿链路。基于此，第一设备和第二设备在通话过程中，可以通过第一链路和补偿链路共同传输通话数据包，以提高第一设备和第二设备的通话质量。
可选的，参见图20B所示，第二设备上设置有“通信补偿”设置界面，在该设置界面中，用户可以设置能够为第二设备助力的设备(简称助力设备)，该助力设备可以是本申请实施例中的第三设备。另外，针对每一个助力设备，用户还可以设置助力业务的类型。示例性的，该助力业务的类型包括音视频通话、文件传输、屏幕共享等。
在一些实施例中，第二预设条件为第一链路的通信质量低于阈值。例如，第一链路的丢包率高于丢包率阈值(例如10％)；和/或，第一链路的信噪比低于信噪比阈值(例如10分贝)；和/或，第一链路的通话数据包的时延高于时延阈值(例如120ms)等，本实施例对此不进行具体限制。或者，该第二预设条件可以是电子设备进入特定区域(如接入通信质量差的小区等)，或者即将进入该特定区域。该电子设备可以是第一设备或者第二设备。
在另一些实施例中，第二预设条件为用户操作第二控件，该第二控件用于控制在第一设备和第二设备之间通过其他设备(如第三设备)间接建立连接。示例性的，参见图21所示，该第二控件可以为协同通话补偿选项下的“设备选择控件”。
在其他一些实施例中，该第二预设条件可以是电子设备检测到的预设的触摸手势、隔空控制手持或者语音控制指令等。
在其他一些实施例中，用户可以基于功耗或者资费的考虑控制建立补偿链路。基于此，第二预设条件可以为第一设备/第二设备开启了补偿链路自动建立功能。在建立补偿链路之后，第一设备和第二设备可以降低通话数据包在第一链路上的传输频度，甚至释放第一链路，从而节约第一设备和第二设备的功耗和蜂窝通话费用。
在本实施例提供的系统中，第一设备和第二设备在通过第一链路通话的过程中，还在第一设备和第二设备之间通过第三设备建立了补偿链路，并同时通过该核心网链路和该补偿链路传输通话数据包，能够提高通话质量。
应理解，参见图22所示，各个运营商的蜂窝网络覆盖情况通常是有所差异的，同一 位置下，有的运营商(如运营商A)的网络质量可能较差，而有的运营商(如运营商B)的网络质量可能较好。以第二设备使用运营商A的蜂窝网络与第一设备通话为例，当运营商A的网络质量较差时，第二设备在通话过程中可能会出现通话质量不佳的情况。为了提高第二设备的通话质量，第二设备可以通过蓝牙/WiFi等无线通信技术连接第三设备，并通过第三设备所接入的蜂窝网络(即运营商B的蜂窝网络)通过第三链路与第一设备连接。基于此，在第一设备与第二设备通过第一链路通话的过程中，第三设备可以通过运营商B的蜂窝网络对第二设备进行通话补偿，以提高第一设备和第二设备的通话质量。
下面对第一设备和第二设备之间建立补偿链路的具体过程进行示例性的说明。
图23是本申请的一个实施例提供的通信补偿方法的示意性流程图，涉及第一设备和第二设备通过第三设备建立补偿链路的过程。
S2301，第一设备和第二设备建立第一链路。具体参见S601，此处不再赘述。
S2302，第一设备和第二设备通过第一链路传输通话数据包。
在本实施例中，第一链路包括核心网链路，具体参见前文描述，此处不再赘述。
S2303，第二设备检测到第二预设条件。
第二预设条件的具体内容参见前文所述，本实施例在此不再赘述。
S2304，第二设备和第三设备建立第二链路。
在本实施例中，第二链路为近场通信链路，例如蓝牙链路、WiFi链路等，具体参见前文描述，此处不再赘述。另外，第二链路可以是第二设备检测在到第二预设条件之后与第三设备建立的，也可以是第二设备在检测到第二预设条件之前和第三设备间预先建立的，本实施例对此不进行限制。
若第二设备在检测到第二预设条件之后，未与第三设备建立第二链路，则第二设备需要对进行设备发现，以确定并连接第三设备。
在一些实施例中，参见图24所示，第二设备可以通过BLE、WiFi、超宽带(ultra wide band，UWB)、D2D、车联网(vehicle to everything，V2X)等无线通信技术，通过广播的方式从周围的电子设备中发现与连接第三设备，与第三设备建立第二链路。其中，第二设备周围的电子设备可能是自己的智能手表、自己的其他手机、平板电脑、笔记本电脑、车机，或者附近其他人的手机、平板电脑等，本实施例对此不进行限制。
在另一些实施例中，参见图25所示，第二设备可以使用蜂窝数据或者WiFi等无线通信技术，通过服务器(Server)或者中转设备中的至少一个发送远场广播消息，以发现和连接第三设备。或者，第二设备可以直接向第三设备发送远场连接请求，以连接第三设备。下面对其进行具体的说明。
1)第二设备通过服务器发送远场广播消息。
同一用户可能有多个电子设备，并且这些电子设备通常通过同一用户ID(例如电话号码、邮箱)登录同一服务器。基于此，第二设备可以先将广播消息发送给该服务器，再由该服务器将广播消息发送给第二设备的用户ID下的其他电子设备，从而进行第三设备的发现与连接。另外，由于登录服务器的其他电子设备可能存在休眠的情况，因此，服务器也可以先通过第三设备的低功耗软件(如pushagent(推送代理)、短信模块)、低功耗硬件或者第三设备所接入的家庭网关等先唤醒这些电子设备，然后再向这些电子设备发送广播消息来进行第三设备的发现与连接。
2)第二设备同时使用服务器和中转设备发送远场广播消息。
同一用户可能有多个电子设备，并且这些电子设备通常通过同一用户ID(例如电话号码、邮箱)登录同一服务器。在这些电子设备中，用户可以预先设置一个中转设备(如路由器)。基于此，第二设备可以先将广播消息发送给服务器，再由服务器将广播消息转发给中转设备，最后由中转设备将广播消息发送给与第二设备的用户ID下的其他电子设备，从而进行第三设备的发现与连接。
3)第二设备通过中转设备发送远场广播消息。
同一用户可能有多个电子设备，并且这些电子设备和第二设备连接同一中转设备(例如路由器)。基于此，第二设备可以通过该中转设备向这些电子设备发送远场广播消息，并从这些电子设备中发现与连接第三设备。
4)第二设备直接根据第三设备的地址信息，向第三设备发送远场的补偿链路建立请求，以连接第三设备。
需要说明的是，在上述过程中，无论第二设备通过远场广播的方式发现和连接第三设备，还是通过近场广播的方式发现和连接第三设备，其目的都是为了与第三设备协商建立补偿链路来对第一设备和第二设备的通话进行补偿，从而提高第一设备和第二设备的通话质量。因此，在以上各种设备发现与连接的过程中，第二设备均需要向第三设备发送补偿链路建立请求，以及接收第三设备返回的补偿链路建立应答。
S2305，第一设备和第三设备建立第三链路。第三链路具体参见前文描述，此处不再赘述。
S2306，第一设备和第二设备在使用第一链路传输通话数据包的同时，使用第二链路和第三链路传输通话数据包。
可以理解，在第三链路建立成功之后，第一设备和第二设备通过两条路径传输通话数据包，一条路径为第一链路(可称作路径A)，另一条路径为第二链路和第三链路组成的补偿链路群(可称作路径B)。在路径B中，第一设备向第二设备发送通话数据包时，先通过第三链路将通话数据包发送第三设备，再由第三设备将其转发给第二设备；第二设备向第一设备发送通话数据包时，先将通话数据包通过第二链路发送给第三设备，再由第三设备将其转发给第一设备。
在本实施例中，在第一设备和第二设备通话的过程中，发送端在采集到通话数据包之后，可以参照如图9A～图9C任一项所示的通话数据包分配方式，在路径A和路径B之间分配通话数据包，从而将通话数据包发送给接收端，本实施例在此不再赘述。应理解，当第一设备是发送端时，第二设备是接收端；当第二设备是发送端时，第一设备是接收端。
在第一设备和第二设备通话的过程中，以用户1使用第一设备，用户2使用第二设备为例，第一设备在采集到用户1的通话数据包之后，将通话数据包同时通过路径A和路径B发送给第二设备，第二设备对两路通话数据包进行去重与排序之后，播放用户1的音视频。同理，第二设备在采集到用户2的通话数据包之后，将通话数据包同时通过路径A和路径B发送给第一设备，第一设备对两路通话数据包进行去重与排序之后，播放用户2的音视频。
需要说明的是，可选的，在路径B中，若第三设备不具备解码功能，第三设备可以对接收到的通话数据包进行去重与排序并将其发送给目标设备(如第一设备或者第二设备)。 若第三设备具备解码功能，第三设备可以既对接收到的通话数据包进行去重与排序，又对其进行解码，最后再将其发送给目标设备。当然，第三设备也可以不对接收到的通话数据包进行处理，而是将其透传给目标设备，本实施例对此不进行限制。
在本实施例提供的方法中，第一设备和第二设备在通过第一链路通话的过程中，还在第一设备和第二设备之间通过第三设备建立了补偿链路，并同时通过该核心网链路和该补偿链路共同传输通话数据包，能够提高通话质量。
下面对第一设备和第三设备建立第三链路的具体过程进行示例性说明。
图26是本申请的一个实施例提供的第三链路建立过程的流程图，具体包括如下步骤S2601～S2606。
S2601，第二设备向第三设备发送第一请求。
该第一请求用于请求第三设备与第一设备建立第三链路。
S2602，第三设备向第二设备发送第三设备的通信地址。
需要说明的是，若第二设备和第三设备之间已建立了第二链路，那么第二设备是已知建立第三链路所需的第三设备的通信地址的。那么，第三设备可以无需发送该第三设备的通信地址，仅发送指示同意建立第三链路的响应信息即可。
另外，若第二设备在检测到第二预设条件之前，已经预先和第三设备建立了第二链路，预先存储有第三设备的通信地址，且第三设备已经预先授权了辅助第二设备建立补偿链路，那么第二设备在检测到第二预设条件之后，不仅无需再建立第二链路，而且在建立第三链路时，无需再请求第三设备同意。即可以省略S2601～S2602，直接执行S2603。
S2603，第二设备向第一设备发送第二请求。
该第二请求用于请求第一设备与第三设备建立第三链路，且携带第三设备的通信地址。
S2604，第一设备向第二设备发送第一设备的通信地址。
S2605，第二设备向第三设备发送第一设备的通信地址。
S2606，第一设备和第三设备根据第一设备的通信地址和第三设备的通信地址，建立第三链路。
基于上述S2601～S2606，第一设备和第三设备即可建立第三链路。第三链路和第二链路联合工作，形成第一设备的第二设备的补偿链路。
另外，第一设备和第三设备还需要协商补偿链路(即第二链路和第三链路)的数据传输规则。该数据传输规则具体可参见前文描述，此处不再赘述。
在一些实施例中，第一设备和第三设备可以在建立补偿链路的过程中，第三设备可以将传输规则协商信息携带在请求消息(如第一请求、第二请求)中，以和第一设备协商数据传输规则。若数据传输规则协商失败，则第一设备和第三设备确定补偿链路建立失败。
在另一些实施例中，第一设备可以和第三设备在建立好补偿链路之后，基于第一链路协商数据传输规则。或者，基于补偿链路(即第二链路和第三链路)协商数据传输规则，本实施例对此不进行限制。若数据传输规则协商成功，则使用该补偿链路传输通话数据包，若协商失败，则断开补偿链路。
在断开补偿链路的过程中，若第二链路是第二设备在检测到第二预设条件之后建立的链路，可以将第二链路和第三链路均断开。若第二链路是第二设备在检测到第二预设条件之前建立的链路，则断开第三链路，保留第二链路。
下面结合具体的应用场景对上述本实施例提供的通话补偿方法进行示例性说明。
场景A：手机1和手机2通话，手机2通过近场的笔记本电脑建立补偿链路。
参见图27A所示，手机1由用户1使用，手机2和笔记本电脑由用户2使用。在手机2和手机1通话的过程中，若手机2且检测到通话质量不佳，或者接收到用户指示建立补偿链路的指令，手机2可以通过笔记本电脑和手机1建立补偿链路，对原本的通话链路(即第一链路)进行通话补偿，以提高手机1和手机2的通话质量。该补偿链路包括手机2和笔记本电脑之间的第二链路，以及笔记本电脑和手机1之间的第三链路。
场景B：手机1和手机2通话，手机2通过近场的车机建立补偿链路。
参见图27B所示，手机1由用户1使用，手机2和车机由用户2使用，手机2在车机内部或者车机附近和手机1通话。在通话过程中，若手机2且检测到通话质量不佳，或者接收到用户指示建立补偿链路的指令，手机2可以通过车机和手机1建立补偿链路，对原本的通话链路(即第一链路)进行通话补偿，以提高手机1和手机2的通话质量。该补偿链路包括手机2和车机之间的第二链路，以及车机和手机1之间的第三链路。
场景C：手机1呼叫手机2，手机2通过家人的手机3建立补偿链路。
参见图27C所示，手机1由用户1使用，手机2和手机3由用户2使用，手机3可以是用户2家人的电子设备。在手机2和手机1通话的过程中，若手机2且检测到通话质量不佳，或者接收到用户指示建立补偿链路的指令，手机2可以通过家人的手机3和手机1建立补偿链路，对原本的通话链路(即第一链路)进行通话补偿，以提高手机1和手机2的通话质量。该补偿链路包括手机2和手机3之间的第二链路，以及手机3和手机1之间的第三链路。
场景D：手机1呼叫手机2，通过近场的智能手表建立补偿链路。
参见图27D所示，手机1为本次通话的主叫设备，手机2为本次通话的被叫设备。手机2安装有SIM卡1(主卡)和SIM卡2(副卡)，智能手表安装有eSIM卡3，SIM卡1和eSIM卡3对应同一电话号码(即智能手表和手机2是一号多终端设备)。手机2与智能手表通过第二链路(如蓝牙链路)连接，智能手表的调制解调器(Modem)自动下电，断开了与核心网设备的连接。
基于此，在手机1和手机2通过第一链路通话的过程中，若手机2检测到通话质量不佳，或者手机2接收到用户指示建立补偿链路的指令，那么手机2可以控制智能手表的Modem上电，并通过智能手表的数据业务与手机1建立第三链路。在第三链路建立成功之后，第二链路和第三链路构成第一链路的补偿链路，对原本的通话链路(即第一链路)进行通话补偿，以提高手机1和手机2的通话质量。
场景E：手机1和手机2通话，手机2通过路由器建立补偿链路。
参见图27E所示，手机1由用户1使用，手机2和路由器由用户2使用。在手机2和手机1通话的过程中，若手机2且检测到通话质量不佳，或者接收到用户指示建立补偿链路的指令，手机2可以通过路由器和手机1建立补偿链路，对原本的通话链路(即第一链路)进行通话补偿，以提高手机1和手机2的通话质量。该补偿链路包括手机2和路由器之间的第二链路，以及路由器和手机1之间的第三链路。
在第一设备和第二设备通话的过程中，不仅第一设备可以通过第三设备间接访问第二设备，第二设备也可以通过第四设备间接访问第一设备。具体如下所示。
图28是本申请另一个实施例提供的多设备协同补偿通话的示意图。参见图28所示，在用户1和用户2使用第一设备和第二设备通话的过程中，第一设备和第二设备通过第一链路连接并交互通话数据包。在该过程中，示例性的，若第一设备和第二设备均检测到第二预设条件，则第一设备依次通过第四设备和第三设备与第二设备连接，建立补偿链路。
在该补偿链路中，第一设备和第四设备之间通过第四链路连接，第四设备和第三设备之间通过第三链路连接，第三设备和第二设备之间通过第二链路连接。在补偿链路的各段链路中，由于第一设备和第四设备均属于用户1，因此，第一设备和第四设备可以预先建立第四链路，也可以在第一设备检测到第二预设条件之后建立第四链路。同理，由于第二设备和第三设备均属于用户2，因此，第二设备和第三设备可以预先建立该第二链路，也可以在第二设备检测到第二预设条件之后建立第三链路。而第四设备和第三设备是分属于不同的用户的，因此，第四设备和第三设备需要基于已建立的链路(包括一链路、第二链路和第四链路)协商建立第三链路。
图29是本申请的一个实施例提供的第三链路的建立过程示意图，具体包括如下步骤S2901～S2910。
S2901～S2902，第一设备和第二设备分别检测到第二预设条件。
该第二预设条件的具体内容请参见前文描述，本实施例在此不再赘述。本实施例对S2901和S2902的先后顺序不进行限制。下面以第二设备先检测到第二预设条件为例，对后续步骤进行示例性说明。
S2903，第二设备向第三设备发送第三请求。该第三请求用于请求第三设备辅助第二设备建立补偿链路。
S2904～S2906，第三设备依次通过第二设备、第一设备向第四设备发送第三设备的通信地址。换而言之，第三设备依次通过第二链路、第一链路和第四链路向第四设备发送第三设备的通信地址。
S2907～S2909，第四设备依次通过第一设备和第二设备向第三设备发送第四设备的通信地址。换而言之，第四设备依次通过第四链路、第一链路和第二链路向第三设备发送第四设备的通信地址。
S2910，第四设备和第三设备根据相互的通信地址建立第三链路。应理解，第四链路、第三链路和第二链路一起，构成原通话链路(即第一链路)的补偿链路。
另外，第四设备和第三设备还需要协商补偿链路(即第三链路)的数据传输规则。该数据传输规则具体可参见前文描述，此处不再赘述。
在一些实施例中，第四设备和第三设备可以在建立第三链路的过程中，第三设备或者第三设备可以将传输规则协商信息在补偿链路建立请求中，以和对方协商数据传输规则。若数据传输规则协商失败，则第一设备和第二设备确定补偿链路建立失败。
在另一些实施例中，第四设备可以在和第三设备建立好补偿链路(即第四链路、第三链路和第二链路)之后，基于原通话链路(即第一链路)协商数据传输规则。或者，基于补偿链路(即第四链路、第三链路和第二链路)协商数据传输规则，本实施例对此不进行限制。若数据传输规则协商成功，则使用该补偿链路传输通话数据包，若协商失败，则断开补偿链路。
图30是本申请其他实施例提供的补偿通信场景的示意图。参见图30所示，在第一设 备和第二设备通过第四设备和第三设备间接通信的过程中，第一设备和第三设备之间还可以建立第五链路，第二设备和第四设备之间还可以建立第六链路。第五链路和第六链路的建立过程具体参见前文描述，本实施例在此不再赘述。
基于图30所示的设备间的连接方式，第一设备和第二设备之间的数据传输路径可以同时包括如下路径2-1～路径2-4：
路径2-1：第一链路。即第一设备和第二设备交互通信数据包。
路径2-2：第四链路—第三链路—第二链路。即第一设备依次通过第四设备、第三设备向第二设备发送通信数据包，对应地，第二设备依次通过第三设备、第四设备向第一设备发送通信数据包。
路径2-3：第五链路—第二链路。即第一设备通过第三设备向第二设备发送通信数据包，对应地，第二设备通过第三设备向第一设备发送通信数据包。
路径2-4：第四链路—第六链路。即第一设备通过第三设备向第二设备发送通信数据包，对应地，第二设备通过第三设备向第一设备发送通信数据包。
通过本实施例提供的方法，第一设备和第二设备在通话的过程中，可以通过多条路径进行通话补偿，有助于提高通话质量。
应理解，上述实施例中各步骤的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
应理解，本申请实施例中提及的处理器可以是中央处理单元(central processing unit，CPU)，还可以是其他通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现成可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
还应理解，本申请实施例中提及的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，DR RAM)。
在本申请所提供的实施例中，各个框架或模块的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个框架或模块可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。
另外，在本申请各个实施例中的各功能模块可以集成在一个处理模块中，也可以是各个模块单独物理存在，也可以两个或两个以上模块集成在一个模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请说明书中描述的参考“一个实施例”或“一些实施例”等意味着在本申请的一个或多个实施例中包括结合该实施例描述的特定特征、结构或特点。由此，在本说明书中的不同之处出现的语句“在一个实施例中”、“在一些实施例中”、“在其他一些实施例中”、“在另外一些实施例中”等不是必然都参考相同的实施例，而是意味着“一个或多个但不是所有的实施例”，除非是以其他方式另外特别强调。术语“包括”、“包含”、“具有”及它们的变形都意味着“包括但不限于”，除非是以其他方式另外特别强调。
以上所述实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围，均应包含在本申请的保护范围之内。

Claims (27)

  1. 一种补偿通信方法，其特征在于，应用于第一设备、第二设备和第三设备，所述第一设备和所述第二设备通过第一链路连接，所述第二设备和所述第三设备通过第二链路连接，所述第一设备和所述第三设备通过所述第一链路和所述第二链路通信；所述方法包括：
    在所述第一设备、所述第二设备或者所述第三设备检测到第一预设条件之后，所述第一设备与所述第三设备建立补偿链路；
    所述第一设备和所述第三设备在通过所述第一链路、所述第二链路通信的同时，通过所述补偿链路通信；或者，所述第一设备和所述第三设备断开所述第一链路和/或所述第二链路，并通过所述补偿链路通信。
  2. 根据权利要求1所述的方法，其特征在于，所述第一预设条件包括：
    检测到对第一控件的操作，所述第一控件用于控制所述第三设备与所述第一设备建立所述补偿链路；和/或，
    获取到预设的触摸手势、隔空控制手持或者语音控制指令；和/或，
    所述第二设备将通信服务转移到所述第三设备；和/或，
    所述第一链路或者所述第二链路的通信质量低于阈值；和/或，
    所述第一设备、所述第二设备或者所述第三设备即将进入/已经进入特定区域；和/或，
    所述第一设备、所述第二设备或者所述第三设备开启了补偿链路自动建立功能。
  3. 根据权利要求1或2所述的方法，其特征在于，
    所述第一链路包括：核心网链路，和/或，基于无线保真WiFi或者蓝牙建立的近场通信链路，和/或，基于WiFi、蜂窝数据或者卫星通信建立的远场通信链路；
    所述第二链路和所述补偿链路包括：基于WiFi或者蓝牙建立的近场通信链路，和/或，基于WiFi、蜂窝数据或者卫星通信建立的远场通信链路。
  4. 根据权利要求1～3任一项所述的方法，其特征在于，所述第三设备与所述第一设备建立补偿链路，包括：
    所述第三设备和所述第一设备通过所述第一链路和所述第二链路协商建立所述补偿链路；或者，
    所述第三设备和所述第一设备通过寻址服务器协商建立所述补偿链路。
  5. 根据权利要求4所述的方法，其特征在于，所述第三设备和所述第一设备通过所述第一链路和所述第二链路协商建立所述补偿链路，包括：
    所述第三设备通过所述第二链路和所述第一链路，向所述第一设备发送补偿链路建立请求，所述补偿链路建立请求携带所述第三设备的通信地址；
    所述第一设备通过所述第一链路和所述第二链路，向所述第三设备发送补偿链路建立响应，所述补偿链路建立响应携带所述第一设备的通信地址；
    所述第一设备和所述第三设备根据对方的通信地址建立所述补偿链路。
  6. 根据权利要求5所述的方法，其特征在于，所述第三设备通过所述第二链路和所述第一链路，向所述第一设备发送补偿链路建立请求，包括：
    所述第三设备通过所述第二链路向所述第二设备发送所述补偿链路建立请求；
    当所述第一链路为核心网链路时，所述第二设备将所述补偿链路建立请求写在实时传输控制协议RTCP报文/实时传输协议RTP数据包中发送给所述第一设备；或者，
    当所述第一链路不是所述核心网链路时，所述第二设备采用自定义或者预设的方式向所述第一设备发送所述补偿链路建立请求。
  7. 根据权利要求5所述的方法，其特征在于，所述第一设备通过所述第一链路和所述第二链路向所述第三设备发送补偿链路建立响应，包括：
    当所述第一链路为核心网链路时，所述第一设备将所述补偿链路建立响应写在RTCP报文/RTP数据包中发送给所述第二设备；或者，
    当所述第一链路不是所述核心网链路时，所述第一设备采用自定义或者预设的方式向所述第二设备发送所述补偿链路建立响应；
    所述第二设备通过所述第二链路向所述第三设备发送所述补偿链路建立响应。
  8. 根据权利要求4所述的方法，其特征在于，所述第三设备和所述第一设备通过寻址服务器协商建立所述补偿链路，包括：
    所述第一设备根据所述寻址服务器中存储的所述第二设备的唯一标识信息和所述第三设备的通信地址的对应关系，确定所述第三设备的通信地址；
    所述第三设备根据所述寻址服务器中存储的所述第一设备的唯一标识信息与通信地址的对应关系，确定所述第一设备的通信地址；
    所述第一设备和所述第三设备根据对方的通信地址建立所述补偿链路。
  9. 根据权利要求1～8任一项所述的方法，其特征在于，所述第一设备和所述第三设备在通过所述第一链路、所述第二链路通信的同时，通过所述补偿链路通信，包括：
    所述第一设备和所述第三设备通过所述第一链路和所述第二链路传输通信数据包的第一部分，通过所述补偿链路传输所述通信数据包的第二部分；所述第一部分和所述第二部分的总和包括待传输的所有通信数据包；
    其中，所述第一部分和所述第二部分完全相同，或者完全不同，或者部分相同。
  10. 根据权利要求1～9任一项所述的方法，其特征在于，所述第三设备为所述第二设备的分机，或者，所述第二设备为所述第三设备的信号接力设备。
  11. 一种补偿通信系统，其特征在于，包括第一设备、第二设备和第三设备，所述第一设备和所述第二设备通过第一链路连接，所述第二设备和所述第三设备通过第二链路连接；所述第一设备和所述第三设备通过所述第一链路和所述第二链路通信；
    所述第一设备被配置为执行权利要求1～10任一项中所述第一设备所执行的方法；
    所述第二设备被配置为执行权利要求1～10任一项中所述第二设备所执行的方法；
    所述第三设备被配置为执行权利要求1～10任一项中所述第三设备所执行的方法。
  12. 一种补偿通信方法，其特征在于，应用于第一设备、第二设备、第三设备和第四设备，所述第一设备和所述第二设备通过第一链路连接，所述第二设备和所述第三设备通过第二链路连接，所述第一设备和所述第四设备通过第四链路连接；所述第四设备和所述第三设备通过所述第四链路、所述第一链路和所述第二链路通信；
    所述第一设备、所述第二设备、所述第三设备和所述第四设备中的任一个设备在检测到第一预设条件之后，控制所述第三设备与所述第四设备建立补偿链路；
    所述第四设备和所述第三设备在通过所述第四链路、所述第一链路和所述第二链路通信的同时，通过所述补偿链路通信；或者，所述第四设备和所述第三设备断开所述第四链路、所述第一链路和所述第二链路中的至少一个，并通过所述补偿链路通信。
  13. 根据权利要求12所述的方法，其特征在于，所述方法还包括：
    所述第一设备和所述第三设备建立第五链路，所述第四设备和所述第三设备还通过所述第四链路和所述第五链路通信。
  14. 根据权利要求12或13所述的方法，其特征在于，所述方法还包括：
    所述第二设备和所述第四设备建立第六链路，所述第四设备和所述第三设备还通过所述第二链路和所述第六链路通信。
  15. 一种补偿通信系统，其特征在于，包括第一设备、第二设备、第三设备和第四设备，所述第一设备和所述第二设备通过第一链路连接，所述第二设备和所述第三设备通过第二链路连接，所述第一设备和所述第四设备通过第四链路连接；所述第四设备和所述第三设备通过所述第四链路、所述第一链路和所述第二链路通信；
    所述第一设备被配置为执行权利要求11～14任一项中所述第一设备所执行的方法；
    所述第二设备被配置为执行权利要求11～14任一项中所述第二设备所执行的方法；
    所述第三设备被配置为执行权利要求11～14任一项中所述第三设备所执行的方法；
    所述第四设备被配置为执行权利要求11～14任一项中所述第四设备所执行的方法。
  16. 一种补偿通信方法，其特征在于，应用于第一设备、第二设备和第三设备，所述第一设备和所述第二设备通过第一链路连接并通信；该方法包括：
    所述第一设备/所述第二设备在检测到第二预设条件之后，所述第一设备和所述第二设备通过所述第三设备间接建立补偿链路，所述补偿链路包括所述第二设备和所述第三设备之间的第二链路，和所述第一设备和所述第三设备之间的第三链路；
    所述第一设备和所述第二设备在通过所述第一链路通信的同时，通过所述补偿链路通信；或者，所述第一设备和所述第二设备断开所述第一链路，并通过所述补偿链路通信。
  17. 根据权利要求16所述的方法，其特征在于，所述第二预设条件包括：
    检测到对第二控件的操作，所述第二控件用于控制所述第一设备与所述第二设备建立所述补偿链路；和/或，
    获取到预设的触摸手势、隔空控制手持或者语音控制指令；和/或，
    所述第一链路的通信质量低于阈值；和/或，
    所述第一设备/第二设备即将进入/已经进入特定区域；和/或，
    所述第一设备/第二设备开启了补偿链路自动建立功能。
  18. 根据权利要求16或17所述的方法，其特征在于，
    所述第一链路包括：核心网链路，和/或，基于无线保真WiFi或者蓝牙建立的近场通信链路，和/或，基于WiFi、蜂窝数据或者卫星通信建立的远场通信链路；
    所述第二链路和所述第三链路包括：基于WiFi或者蓝牙建立的近场通信链路，和/或，基于WiFi、蜂窝数据或者卫星通信建立的远场通信链路。
  19. 根据权利要求16～18任一项所述的方法，其特征在于，所述第一设备和所述第二设备通过所述第三设备间接建立补偿链路，包括：
    所述第二设备通过近场广播或者远场广播发现并连接所述第三设备，形成所述第二链路；
    所述第三设备通过所述第二链路和所述第一链路向所述第一设备发送所述第三设备的通信地址；
    所述第一设备通过所述第一链路和所述第二链路向所述第三设备发送所述第一设备的通信地址；
    所述第一设备和所述第三设备根据对方的通信地址建立第三链路，所述第二链路和所述第三链路组成的链路群为所述补偿链路。
  20. 根据权利要求19所述的方法，其特征在于，所述第二设备通过近场广播发现并连接所述第三设备，形成所述第二链路，包括：
    所述第二设备通过蓝牙广播、WiFi广播、超带宽UWB广播、设备到设备D2D广播或者车联网V2X广播发现并连接所述第三设备。
  21. 根据权利要求19所述的方法，其特征在于，所述第二设备通过远场广播发现并连接所述第三设备，包括：
    所述第二设备通过服务器发送所述远场广播消息，发现并连接所述第三设备，形成所述第二链路；或者，
    所述第二设备通过中转设备发送所述远场广播消息，发现并连接所述第三设备，形成所述第二链路；或者，
    所述第二设备同时使用所述服务器和所述中转设备发送所述远场广播消息，发现并连接所述第三设备，形成所述第二链路；或者，
    所述第二设备直接根据第三设备的地址信息连接所述第三设备，形成所述第二链路。
  22. 根据权利要求16～21任一项所述的方法，其特征在于，所述第一设备和所述第二设备在通过所述第一链路通信的同时，通过所述补偿链路通信，包括：
    所述第一设备和所述第二设备通过所述第一链路传输通信数据包的第一部分，通过所述补偿链路传输所述通信数据包的第二部分；所述第一部分和所述第二部分的总和包括待传输的所有通信数据包；
    其中，所述第一部分和所述第二部分完全相同，或者完全不同，或者部分相同。
  23. 一种补偿通信系统，其特征在于，包括第一设备、第二设备和第三设备，所述第一设备和所述第二设备通过第一链路连接并通信；
    所述第一设备被配置为执行权利要求16～22任一项中所述第一设备所执行的方法；
    所述第二设备被配置为执行权利要求16～22任一项中所述第二设备所执行的方法；
    所述第三设备被配置为执行权利要求16～22任一项中所述第三设备所执行的方法。
  24. 一种补偿通信方法，其特征在于，应用于第一设备、第二设备、第三设备和第四设备，所述第一设备和所述第二设备通过第一链路连接并通信；该方法包括：
    所述第一设备/所述第二设备在检测到第二预设条件之后，所述第一设备和所述第二设备建立补偿链路；所述补偿链路包括：所述第一设备和所述第四设备之间的第四链路、所述第四设备和所述第三设备之间的第三链路、所述第三设备和所述第二设备之间的第二链路；
    所述第一设备和所述第二设备在通过所述第一链路通信的同时，通过所述补偿链路通信；或者，所述第一设备和所述第二设备断开所述第一链路，并通过所述补偿链路通信。
  25. 根据权利要求24所述的方法，其特征在于，所述方法还包括：
    所述第一设备和所述第三设备建立第五链路，所述第一设备和所述第二设备还通过所述第二链路和所述第五链路通信。
  26. 根据权利要求24或25所述的方法，其特征在于，所述方法还包括：
    所述第二设备和所述第四设备建立第六链路，所述第一设备和所述第二设备还通过所述第四链路和所述第六链路通信。
  27. 一种补偿通信系统，其特征在于，包括第一设备、第二设备、第三设备和第四设备，所述第一设备和所述第二设备通过第一链路连接并通信，
    所述第一设备被配置为执行权利要求24～26任一项中所述第一设备所执行的方法；
    所述第二设备被配置为执行权利要求24～26任一项中所述第二设备所执行的方法；
    所述第三设备被配置为执行权利要求24～26任一项中所述第三设备所执行的方法；
    所述第四设备被配置为执行权利要求24～26任一项中所述第四设备所执行的方法。
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109117111A (zh) * 2018-07-27 2019-01-01 Oppo广东移动通信有限公司 传输链路切换控制方法及相关产品
CN111629452A (zh) * 2020-04-02 2020-09-04 北京大米科技有限公司 一种数据传输控制方法、装置、存储介质及电子设备
CN113632544A (zh) * 2019-08-16 2021-11-09 Oppo广东移动通信有限公司 链路切换的方法和通信设备
WO2022027656A1 (zh) * 2020-08-07 2022-02-10 华为技术有限公司 一种侧行链路通信中链路切换的方法及装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109117111A (zh) * 2018-07-27 2019-01-01 Oppo广东移动通信有限公司 传输链路切换控制方法及相关产品
CN113632544A (zh) * 2019-08-16 2021-11-09 Oppo广东移动通信有限公司 链路切换的方法和通信设备
CN111629452A (zh) * 2020-04-02 2020-09-04 北京大米科技有限公司 一种数据传输控制方法、装置、存储介质及电子设备
WO2022027656A1 (zh) * 2020-08-07 2022-02-10 华为技术有限公司 一种侧行链路通信中链路切换的方法及装置

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