WO2021032186A1 - 发现节点的方法、链路建立的方法和设备 - Google Patents

发现节点的方法、链路建立的方法和设备 Download PDF

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Publication number
WO2021032186A1
WO2021032186A1 PCT/CN2020/110462 CN2020110462W WO2021032186A1 WO 2021032186 A1 WO2021032186 A1 WO 2021032186A1 CN 2020110462 W CN2020110462 W CN 2020110462W WO 2021032186 A1 WO2021032186 A1 WO 2021032186A1
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Prior art keywords
node
relay
service
request
information
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PCT/CN2020/110462
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English (en)
French (fr)
Inventor
金巴·迪·阿达姆·布巴卡
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维沃移动通信有限公司
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Publication of WO2021032186A1 publication Critical patent/WO2021032186A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W40/00Communication routing or communication path finding
    • H04W40/02Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/22Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup

Definitions

  • the embodiments of the present disclosure relate to the field of communication technologies, and in particular to a method for discovering nodes, a method and equipment for link establishment.
  • the terminal connects to the base station through the Uu port, and obtains the service required by the terminal through the base station.
  • the terminal is not in the area covered by the base station (for example, the terminal cannot connect to the base station through the Uu port)
  • how does the terminal Obtaining the service of the business it needs is an urgent problem to be solved.
  • One purpose of the embodiments of the present disclosure is to provide a method for discovering nodes, a method and equipment for link establishment, and to solve the problem of how the terminal obtains the service of the required service when the terminal is not in the area covered by the base station.
  • an embodiment of the present disclosure provides a method for discovering a node, which is applied to a first node, and includes:
  • the first node is determined to be the relay node of the second node; or if the first node can provide the first service, the The first node is determined to be the service node of the second node;
  • the first service includes: a service required by the second node.
  • embodiments of the present disclosure also provide a method for discovering a node, which is applied to a second node, including:
  • Information about a first service where the first service includes: a service required by the second node;
  • the relay node can provide a relay service for the second node.
  • the embodiments of the present disclosure also provide a method for link establishment, which is applied to the fourth node, and includes:
  • the first establishment request determine whether to establish a link between the third node and the fourth node, or determine whether the fourth node can act as a relay node;
  • the relay node can provide a relay service for the third node.
  • the embodiments of the present disclosure also provide a first node, including:
  • the first receiving module is configured to receive a relay request, the relay request being initiated by the second node;
  • a first determining module configured to determine the first node as the relay node of the second node if the first node can provide the relay service; or, if the first node can provide the first node For the service of the business, the first node is determined as the service node of the second node; wherein, the first business includes: the business required by the second node.
  • embodiments of the present disclosure also provide a second node, including:
  • the second sending module is configured to send a relay request to the first node, where the relay request includes one or more of the following:
  • the first service includes: a service required by the second node;
  • the relay node can provide a relay service for the second node.
  • the embodiments of the present disclosure also provide a third node, including:
  • the second receiving module is configured to receive indication information from the fourth node, the indication information indicating node information that can serve as a relay node, or indicating node information that can provide a service of the second service;
  • a third sending module configured to send a first setup request to the fourth node, where the first setup request is used to request the establishment of a link between the third node and the fourth node;
  • the relay node can provide a relay service for the third node
  • the second service includes: a service required by the third node.
  • the embodiments of the present disclosure also provide a fourth node, including:
  • a third receiving module configured to receive a first establishment request from a third node, where the first establishment request is used to request establishment of a link between the third node and the fourth node;
  • the first establishment request includes one or more of the following:
  • Information about a second service where the second service includes: a service required by the third node.
  • the embodiments of the present disclosure also provide a terminal, including: a processor, a memory, and a program stored on the memory and capable of running on the processor, the program being executed when the processor is executed.
  • a terminal including: a processor, a memory, and a program stored on the memory and capable of running on the processor, the program being executed when the processor is executed.
  • the embodiments of the present disclosure also provide a computer-readable storage medium having a computer program stored on the computer-readable storage medium, and when the computer program is executed by a processor, the implementation is as described in the first and second aspects.
  • the terminal can discover the relay node or the service node, so that even when the terminal is not in the area covered by the base station, it can obtain the service of the service required by the terminal indirectly through the relay node or directly through the service node.
  • FIG. 1 is one of the flowcharts of the method for discovering a node according to an embodiment of the disclosure
  • FIG. 2 is the second flowchart of the method for discovering a node according to an embodiment of the disclosure
  • FIG. 3 is one of the flowcharts of the method for establishing a link according to an embodiment of the disclosure
  • FIG. 4 is the second flow chart of the method for establishing a link according to an embodiment of the disclosure.
  • FIG. 5 is a schematic diagram of discovering a relay node according to an embodiment of the disclosure.
  • FIG. 6 is a schematic diagram of link establishment in an embodiment of the disclosure.
  • FIG. 7 is a schematic diagram of a first node in an embodiment of the disclosure.
  • FIG. 8 is a schematic diagram of a second node in an embodiment of the disclosure.
  • FIG. 9 is a schematic diagram of a third node in an embodiment of the disclosure.
  • FIG. 10 is a schematic diagram of a fourth node in an embodiment of the disclosure.
  • FIG. 11 is a schematic diagram of a terminal according to an embodiment of the disclosure.
  • words such as “exemplary” or “for example” are used as examples, illustrations, or illustrations. Any embodiment or design solution described as “exemplary” or “for example” in the embodiments of the present disclosure should not be construed as being more optional or advantageous than other embodiments or design solutions. To be precise, words such as “exemplary” or “for example” are used to present related concepts in a specific manner.
  • LTE Long Time Evolution
  • LTE-A Long Time Evolution
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single Carrier Frequency Division Multiple Access
  • the terms “system” and “network” are often used interchangeably.
  • the CDMA system can implement radio technologies such as CDMA2000 and Universal Terrestrial Radio Access (UTRA).
  • UTRA includes Wideband Code Division Multiple Access (WCDMA) and other CDMA variants.
  • the TDMA system can implement radio technologies such as the Global System for Mobile Communication (GSM).
  • OFDMA system can realize such as Ultra Mobile Broadband (UMB), Evolved UTRA (Evolution-UTRA, E-UTRA), IEEE 802.11 (Wireless Fidelity, Wi-Fi), IEEE 802.16 (Global Microwave) Access interoperability (Worldwide Interoperability for Microwave Access, WiMAX), IEEE 802.20, Flash-OFDM and other radio technologies.
  • UTRA and E-UTRA are part of Universal Mobile Telecommunications System (UMTS).
  • LTE and more advanced LTE (such as LTE-A) are new UMTS versions that use E-UTRA.
  • UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named "3rd Generation Partnership Project” (3GPP).
  • CDMA2000 and UMB are described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2).
  • the technology described in this article can be used for the systems and radio technologies mentioned above as well as other systems and radio technologies.
  • an embodiment of the present disclosure provides a method for discovering a node.
  • the execution subject of the method is a first node, such as a terminal, and includes: step 101 and step 102.
  • Step 101 Receive a relay request, where the relay request is initiated by a second node;
  • the foregoing relay request may be referred to as a relay request between terminals (UE to UE relay request).
  • Step 102 If the first node can provide the relay service, determine the first node as the relay node of the second node; or, if the first node can provide the service of the first business, Then, the first node is determined as a service node of the second node; wherein, the first service includes: a service required by the second node.
  • the relay service is equivalent to the forwarding service. If the first node can relay the service, the first node may forward the relay request to the next node, where the next node may be a terminal or a network device.
  • UE2 in FIG. 5 is located between UE1 and UE5 to provide a relay service.
  • UE5 provides a relay service between UE2 and the base station. That is, the relay node can be connected to the network side through a transmission interface, for example, the first node can be connected to the network side through a Uu interface; or there is no transmission interface connection between the relay node and the network side.
  • the relay request may include one or more of the following:
  • Information of the second node such as the Internet Protocol (IP) address of the second node, and/or the identity (ID) of the second node;
  • IP Internet Protocol
  • ID identity
  • the information of the first service includes: the service required by the second node, such as the direct link service (sidelink service);
  • the relay node may be connected to the network side through a transmission interface.
  • the method shown in FIG. 1 may further include: establishing a connection between the first node and the second node according to the relay request. Link.
  • UE2 establishes a link with UE1, or UE5 establishes a link with UE2.
  • the specific method may include: determining multiple links between the first node and the second node according to a relay request; from the multiple links between the first node and the second node , Select an optimal link, for example, select a link from multiple links based on signal quality, or select a link from multiple links based on transmission time.
  • the method further includes:
  • UE2 can forward the relay request to UE5.
  • the forwarded relay request may also include one or more of the following:
  • the terminal can discover the relay node or the service node through the relay request, so that even when the terminal is not in the area covered by the base station, it can obtain the information required by the terminal indirectly or directly through the service node.
  • Business services can be used.
  • an embodiment of the present disclosure also provides a method for discovering a node.
  • the execution subject of the method is a second node, such as a terminal (user equipment, UE), and the method includes: step 201.
  • Step 201 Send a relay request to the first node, where the relay request includes one or more of the following:
  • Information of the second node such as the IP address of the second node and/or the ID of the second node;
  • the first service includes: a service required by the second node, such as a sidelink service;
  • the relay node can provide relay services for the second node, and the relay node can communicate with the second node through a transmission interface.
  • the network side is connected, or the relay node has no transmission interface connection with the network side.
  • a discovery request (or called a discovery signal) is sent to the relay node; when a response (response) message to the discovery request is not received, the first node Send the relay request.
  • step 201 the discovery request sent by the relay node is intercepted; when the discovery request cannot be intercepted, the relay request is sent to the first node.
  • the terminal can discover the relay node or the service node through the relay request, so that even when the terminal is not in the area covered by the base station, it can obtain the information required by the terminal indirectly through the relay node or directly through the service node.
  • Business services can be used.
  • an embodiment of the present disclosure also provides a method for establishing a link.
  • the method is executed by a third node, such as a UE, and includes: step 301 and step 302.
  • Step 301 Receive indication information from a fourth node, the indication information indicating node information that can serve as a relay node, or indicating node information that can provide services of a second service (for example, a sidelink service);
  • the indication information includes one or more of the following: (1) information about the fourth node; (2) information about the second service, for example, the information may be a service identifier; (3) the fourth node Information about other nodes around the node that can serve as relay nodes; (4) Information about other nodes around the fourth node that can provide the service of the second service. Further, the information in (1), (3) and (4) above may be an IP address and/or ID.
  • Step 302 Send a first establishment request to the fourth node, where the first establishment request is used to request establishment of a link between the third node and the fourth node;
  • the relay node can provide a relay service for the third node.
  • the relay node is connected to the network side through a transmission interface, or the relay node has no transmission interface connection to the network side;
  • the second service includes: a service required by the third node.
  • the first establishment request includes one or more of the following:
  • Information of the third node for example, the IP address of the third node and/or the ID of the third node;
  • the terminal can discover the relay node or the service node, so that even when the terminal is not in the area covered by the base station, it can obtain the service of the service required by the terminal indirectly through the relay node or directly through the service node.
  • an embodiment of the present disclosure also provides a method for establishing a link.
  • the method is executed by a fourth node, such as a UE, and includes: step 401 and step 402.
  • Step 401 Receive a first establishment request from a third node, where the first establishment request is used to request establishment of a link between the third node and the fourth node;
  • the first establishment request may include one or more of the following:
  • Information of the third node for example, the IP address of the third node and/or the ID of the third node;
  • the second service may be a sidelink service.
  • Step 402 According to the first establishment request, determine whether to establish a link between the third node and the fourth node, or determine whether the fourth node can act as a relay node;
  • the relay node can provide a relay service for the third node.
  • the relay node may be connected to the network side through a transmission interface (for example, a Uu interface), or the relay node may not be connected to the network side. Transmission interface connection.
  • the method further includes:
  • the fourth node can act as a relay node, select a fifth node with a relay function, and send a second establishment request to the fifth node.
  • the second establishment request is used to request the establishment of the fourth node. The link between the node and the fifth node.
  • the terminal can discover the relay node or the service node, so that even when the terminal is not in the area covered by the base station, it can obtain the service of the service required by the terminal indirectly through the relay node or directly through the service node.
  • Embodiment 1 The UE looks for another UE to act as a relay node.
  • a UE can find another UE as a sidelink service. As shown in Figure 5, UE1 needs to find UE5 for sidelink services.
  • Step 1 UE1 sends a discovery signal (discovery signal) to UE5, or UE1 listens to UE5's discovery signal.
  • a discovery signal discovery signal
  • UE1 If UE1 cannot receive the response of the discovery signal of UE5, or if UE1 cannot detect the discovery signal of UE5, UE1 sends a UE to UE relay request to the surrounding UEs.
  • the UE to UE relay request may include: UE1 and/or UE5 information, wherein the UE1 information includes: UE1 ID and/or UE1 IP, and UE5 information includes: UE5 ID and/or UE5 IP.
  • Step 2 If a UE receives a UE to UE relay request sent by UE1, and the UE can relay to UE 1, for example, the UE is UE2; or a UE receives the UE to UE relay request after receiving the UE to UE relay request.
  • the to UE relay request is forwarded to other surrounding UEs until a UE that can be used as a relay and has a Uu interface, such as UE5, appears.
  • the UE to UE relay request can carry one or more of the following: information of the UE that needs relay (for example, UE1); information of all forwarded UEs; between the UEs that are forwarded each time The signal quality of the link.
  • the UE to UE relay request may carry:
  • UE1 information such as UE1 ID and/or UE1 IP address
  • UE2 information such as UE2 ID and/or UE2 IP address
  • UE6 information such as UE6 ID and/or UE6 IP address
  • UE5 information such as UE5 ID and/or UE5 IP address
  • Step 3 After the relay node receives the UE to UE relay request, the relay node behavior may include:
  • Manner 1 According to the UE to UE relay request, the relay node can select a path (or called a link) to UE1.
  • the path that UE5 can select can be:
  • Method 2 According to the UE to UE relay request, select the optimal or optimal path. For example: as shown in Figure 6, establish a path: UE5 ⁇ ->UE2 ⁇ ->UE1.
  • Implementation manner 2 The UE seeks to serve a service node UE.
  • the UE needs a service node (S1), but the UE does not know which UE can provide S1.
  • S1 service node
  • the specific steps are as follows:
  • Step 1 The UE sends the discovery signal of S1 to surrounding UEs.
  • UE1 sends the discovery signal of S1 to surrounding UE2 and/or UE3, where the discovery signal of S1 may include one or more of the following:
  • UE1 information such as UE1 ID and/or UE1 IP address
  • S1 information such as S1 identification information.
  • Step 2 The surrounding UE (for example, UE2) receives the discovery signal of S1, and the behavior of the surrounding UE may include:
  • UE2 can establish a connection between UE1 and start serving UE1.
  • the surrounding UEs can forward the discovery signal of S1 to other nodes gradually.
  • the discovery signal forwarded by UE2 to UE6 may include:
  • UE1 information such as UE1 ID and/or UE1 IP address
  • S1 information such as S1 identification information
  • UE2 information such as UE2 ID and/or UE2 IP address.
  • the discovery signal of S1 can be forwarded between UEs until a UE that can provide S1 services is found.
  • the third embodiment of the present disclosure the UE indicates that it can be a relay node or can provide a certain service service.
  • a UE can be a relay node
  • the UE broadcasts indication information on the air interface, indicating that it can be a relay node or can provide a certain service.
  • the indication information may include one or more of the following:
  • UE ID and/or IP such as UE2 ID and/or UE2 IP
  • the UE listens to other UEs on the air interface to send out a service signal that can be a relay node or can provide a certain service.
  • a UE such as UE1 finds that a certain UE (such as UE2) sends a service signal that can be a relay node or can provide a certain service, UE1 initiates a request for establishing a transmission interface to the UE2.
  • the request information may include one or more of the following:
  • UE ID and/or IP address such as UE2 ID and/or UE2 IP address
  • UE2 may decide to accept the request for establishing an interface and agree to the establishment.
  • UE2 will select a forwarding node (for example, UE5) and initiate a request for establishing a forwarding interface to UE5.
  • a forwarding node for example, UE5
  • the request information of the forwarding interface may include one or more of the following:
  • UE1 information such as UE1 ID and/or UE1 IP address
  • UE2 information such as UE2 ID and/or UE2 IP address.
  • the embodiment of the present disclosure also provides a first node. Since the principle of the first node to solve the problem is similar to the method in the embodiment of the present disclosure, the implementation of the first node can refer to the implementation of the method. Narrated.
  • an embodiment of the present disclosure further provides a first node, and the first node 700 includes:
  • the first receiving module 701 is configured to receive a relay request, where the relay request is initiated by the second node;
  • the first determining module 702 is configured to determine the first node as the relay node of the second node if the first node can provide the relay service; or, if the first node can provide the first node For a service of a business, the first node is determined as a service node of the second node; wherein, the first business includes: a business required by the second node.
  • the first node is connected to the network side through a Uu interface.
  • the relay request includes one or more of the following:
  • Information of the second node such as the Internet Protocol (IP) address of the second node, or the identity (ID) of the second node;
  • IP Internet Protocol
  • ID identity
  • the first service includes: the service required by the second node;
  • the first node 700 may further include: a first establishment module, configured to establish the first node and the second node according to the relay request when the relay node can be connected to the network side through a transmission interface The link between.
  • the specific method may include: determining multiple links between the first node and the second node according to a relay request; from the multiple links between the first node and the second node , Select a link, for example, select a link from multiple links based on signal quality, or select a link from multiple links based on transmission time.
  • the first node 700 may further include: a first sending module, configured to: if there is no transmission interface between the first node and the network side, or if the first node cannot provide the first service , Then forward the relay request to other nodes.
  • a first sending module configured to: if there is no transmission interface between the first node and the network side, or if the first node cannot provide the first service , Then forward the relay request to other nodes.
  • the forwarded relay request further includes one or more of the following:
  • the first node provided in the embodiment of the present disclosure can execute the embodiment shown in FIG. 1 above, and its implementation principles and technical effects are similar, and details are not described herein again in this embodiment.
  • the embodiment of the present disclosure also provides a second node. Since the principle of the second node to solve the problem is similar to the method in the embodiment of the present disclosure, the implementation of the second node can refer to the implementation of the method, and the repetition will not be repeated. Narrated.
  • an embodiment of the present disclosure further provides a second node, and the second node 800 includes:
  • the second sending module 801 is configured to send a relay request to the first node, where the relay request includes one or more of the following:
  • Information of the second node such as the IP address of the second node, or the ID of the second node;
  • the first service includes: the service required by the second node;
  • the relay node can provide relay services for the second node.
  • the relay node transmits The interface is connected to the network side, or there is no transmission interface connection between the relay node and the network side.
  • the second sending module 801 is further configured to send the relay request to the first node when the response message of the discovery request is not received.
  • the second sending module 801 is further configured to send the relay request to the first node when the discovery request sent by the relay node cannot be monitored.
  • the second node provided in the embodiment of the present disclosure may execute the embodiment shown in FIG. 2 above, and its implementation principles and technical effects are similar, and details are not described in this embodiment here.
  • the embodiment of the present disclosure also provides a third node. Since the principle of the third node to solve the problem is similar to the method in the embodiment of the present disclosure, the implementation of the third node can refer to the implementation of the method. Narrated.
  • an embodiment of the present disclosure further provides a third node, and the third node 900 includes:
  • the second receiving module 901 is configured to receive indication information from a fourth node, the indication information indicating node information that can serve as a relay node, or indicating node information that can provide a second service service;
  • the indication information includes one or more of the following: (1) information about the fourth node; (2) information about the second service; (3) other relay nodes around the fourth node Node information; (4) Information about other nodes around the fourth node that can provide services of the second business. Further, the aforementioned information may be an IP address and/or ID.
  • the third sending module 902 is configured to send a first establishment request to the fourth node, where the first establishment request is used to request the establishment of a link between the third node and the fourth node;
  • the relay node can provide a relay service for the third node.
  • the relay node is connected to the network side through a transmission interface, or the relay node has no transmission interface connection to the network side;
  • the second service includes: a service required by the third node.
  • the first establishment request includes one or more of the following:
  • Information of the third node for example, the IP address of the third node and/or the ID of the third node;
  • the third node provided in the embodiment of the present disclosure can execute the embodiment shown in FIG. 3 above, and its implementation principles and technical effects are similar, and details are not described herein again in this embodiment.
  • the embodiment of the present disclosure also provides a fourth node. Since the principle of the fourth node to solve the problem is similar to the method in the embodiment of the present disclosure, the implementation of the fourth node can refer to the implementation of the method. Narrated.
  • an embodiment of the present disclosure further provides a fourth node, and the fourth node 1000 includes:
  • the third receiving module 1001 is configured to receive a first establishment request from a third node, where the first establishment request is used to request the establishment of a link between the third node and the fourth node;
  • the first establishment request includes one or more of the following:
  • Information of the third node for example, the IP address of the third node and/or the ID of the third node;
  • the determining module 1002 is configured to determine whether to establish a link between the third node and the fourth node, or determine whether the fourth node can act as a relay node according to the first establishment request;
  • the relay node can provide a relay service for the third node.
  • the relay node is connected to the network side through a transmission interface, or the relay node is not connected to the network side by a transmission interface.
  • the fourth node 1000 further includes: a fourth sending module, configured to select a fifth node with a relay function if the fourth node can serve as a relay node, and send a message to the fifth node
  • the node sends a second establishment request, and the second establishment request is used to request establishment of a link between the fourth node and the fifth node.
  • the fourth node provided in the embodiment of the present disclosure may execute the embodiment shown in FIG. 4, and its implementation principles and technical effects are similar, and details are not described in this embodiment here.
  • the terminal 1100 shown in FIG. 11 includes: at least one processor 1101, a memory 1102, at least one network interface 1104, and a user interface 1103.
  • the various components in the terminal 1100 are coupled together through the bus system 1105.
  • the bus system 1105 is used to implement connection and communication between these components.
  • the bus system 1105 also includes a power bus, a control bus, and a status signal bus.
  • various buses are marked as the bus system 1105 in FIG. 11.
  • the user interface 1103 may include a display, a keyboard, or a pointing device (for example, a mouse, a trackball (trackball), a touch panel, or a touch screen).
  • a pointing device for example, a mouse, a trackball (trackball), a touch panel, or a touch screen.
  • the memory 1102 in the embodiment of the present disclosure may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache.
  • RAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data rate SDRAM DDRSDRAM
  • enhanced SDRAM ESDRAM
  • Synchlink DRAM SLDRAM
  • Direct Rambus RAM DRRAM
  • the memory 1102 of the system and method described in the embodiments of the present disclosure is intended to include, but is not limited to, these and any other suitable types of memory.
  • the memory 1102 stores the following elements, executable modules or data structures, or a subset of them, or an extended set of them: operating system 11021 and application programs 11022.
  • the operating system 11021 includes various system programs, such as a framework layer, a core library layer, a driver layer, etc., for implementing various basic services and processing hardware-based tasks.
  • the application program 11022 includes various application programs, such as a media player (Media Player), a browser (Browser), etc., which are used to implement various application services.
  • the program for implementing the method of the embodiment of the present disclosure may be included in the application program 11022.
  • the terminal provided in the embodiment of the present disclosure can execute the method embodiments shown in FIGS. 1 to 4, and the implementation principles and technical effects are similar, and the details are not described herein again in this embodiment.
  • the steps of the method or algorithm described in conjunction with the disclosure of the present disclosure may be implemented in a hardware manner, or may be implemented in a manner in which a processor executes software instructions.
  • the software instructions can be composed of corresponding software modules, and the software modules can be stored in RAM, flash memory, ROM, EPROM, EEPROM, registers, hard disks, mobile hard disks, read-only optical disks, or any other form of storage medium known in the art.
  • An exemplary storage medium is coupled to the processor, so that the processor can read information from the storage medium and can write information to the storage medium.
  • the storage medium may also be an integral part of the processor.
  • the processor and the storage medium may be located in an Application Specific Integrated Circuit (ASIC).
  • the ASIC may be located in the core network interface device.
  • the processor and the storage medium may also exist as discrete components in the core network interface device.
  • Computer readable media include computer storage media and communication media, where communication media includes any media that facilitates the transfer of computer programs from one place to another.
  • the storage medium may be any available medium that can be accessed by a general-purpose or special-purpose computer.
  • the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Therefore, the embodiments of the present disclosure may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the embodiments of the present disclosure may use one or more computer-usable storage media (including but not limited to disk storage, compact disc read-only memory, CD-ROM), optical The form of a computer program product implemented on a memory, etc.).
  • computer-usable storage media including but not limited to disk storage, compact disc read-only memory, CD-ROM
  • These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
  • the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
  • the instructions provide steps for implementing functions specified in a flow or multiple flows in the flowchart and/or a block or multiple blocks in the block diagram.

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Abstract

本公开实施例提供一种发现节点的方法、链路建立的方法和设备,该方法包括:接收中继请求,所述中继请求是由第二节点发起的;如果所述第一节点能提供中继服务,则将所述第一节点确定为所述第二节点的中继节点;或者,如果所述第一节点能提供第一业务的服务,则将所述第一节点确定为所述第二节点的服务节点;其中,所述第一业务包括:所述第二节点所需的业务。

Description

发现节点的方法、链路建立的方法和设备
相关申请的交叉引用
本申请主张在2019年8月21日在中国提交的中国专利申请号No.201910775784.8的优先权,其全部内容通过引用包含于此。
技术领域
本公开实施例涉及通信技术领域,具体涉及一种发现节点的方法、链路建立的方法和设备。
背景技术
通常情况下,终端通过Uu口与基站连接,并通过基站获取该终端所需的业务的服务,然而,当终端不在基站覆盖的区域(例如终端无法通过Uu口与基站连接)时,该终端如何获取其所需的业务的服务是亟待解决的问题。
发明内容
本公开实施例的一个目的在于提供一种发现节点的方法、链路建立的方法和设备,解决终端不在基站覆盖的区域时,该终端如何获取其所需的业务的服务的问题。
第一方面,本公开实施例提供一种发现节点的方法,应用于第一节点,包括:
接收中继请求,所述中继请求是由第二节点发起的;
如果所述第一节点能提供中继服务,则将所述第一节点确定为所述第二节点的中继节点;或者,如果所述第一节点能提供第一业务的服务,则将所述第一节点确定为所述第二节点的服务节点;
其中,所述第一业务包括:所述第二节点所需的业务。
第二方面,本公开实施例还提供一种发现节点的方法,应用于第二节点,包括:
向第一节点发送中继请求,所述中继请求包括以下一项或多项:
所述第二节点的信息;
第一业务的信息,所述第一业务包括:所述第二节点所需的业务;
中继节点的信息,所述中继节点能为所述第二节点提供中继服务。
第三方面,本公开实施例还提供一种链路建立的方法,应用于第四节点,包括:
从第三节点接收第一建立请求,所述第一建立请求用于请求建立所述第三节点和所述第四节点之间的链路;
根据所述第一建立请求,判断是否建立所述第三节点和所述第四节点之间的链路,或者判断所述第四节点是否能作为中继节点;
其中,所述中继节点能为所述第三节点提供中继服务。
第四方面,本公开实施例还提供一种第一节点,包括:
第一接收模块,用于接收中继请求,所述中继请求是由第二节点发起的;
第一确定模块,用于如果所述第一节点能提供中继服务,则将所述第一节点确定为所述第二节点的中继节点;或者,如果所述第一节点能提供第一业务的服务,则将所述第一节点确定为所述第二节点的服务节点;其中,所述第一业务包括:所述第二节点所需的业务。
第五方面,本公开实施例还提供一种第二节点,包括:
第二发送模块,用于向第一节点发送中继请求,所述中继请求包括以下一项或多项:
第二节点的信息;
第一业务的信息,第一业务包括:所述第二节点所需的业务;
中继节点的信息,所述中继节点能为所述第二节点提供中继服务。
第六方面,本公开实施例还提供一种第三节点,包括:
第二接收模块,用于从第四节点接收指示信息,所述指示信息指示能作为中继节点的节点信息,或者指示能提供第二业务的服务的节点信息;
第三发送模块,用于向所述第四节点发送第一建立请求,所述第一建立请求用于请求建立所述第三节点和所述第四节点之间的链路;
其中,所述中继节点能为所述第三节点提供中继服务;
所述第二业务包括:所述第三节点所需的业务。
第七方面,本公开实施例还提供一种第四节点,包括:
第三接收模块,用于从第三节点接收第一建立请求,所述第一建立请求用于请求建立所述第三节点和所述第四节点之间的链路;
所述第一建立请求包括以下一项或多项:
所述第三节点的信息;
所述第四节点的信息;
第二业务的信息,所述第二业务包括:所述第三节点所需的业务。
第八方面,本公开实施例还提供一种终端,包括:处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序,所述程序被所述处理器执行时实现如第一方面和第二方面所述的发现节点的方法的步骤;或者,实现如第三方面和第四方面所述的链路建立的方法的步骤。
第九方面,本公开实施例还提供一种计算机可读存储介质,所述计算机可读存储介质上存储有计算机程序,所述计算机程序被处理器执行时实现如第一方面和第二方面所述的发现节点的方法的步骤;或者,实现如第三方面和第四方面所述的链路建立的方法的步骤。
在本公开实施例中,终端可以发现中继节点或者服务节点,使得该终端即使不在基站覆盖的区域时,也可以通过中继节点间接或通过服务节点直接获取该终端所需的业务的服务。
附图说明
通过阅读下文可选实施方式的详细描述,各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出可选实施方式的目的,而并不认为是对本公开的限制。而且在整个附图中,用相同的参考符号表示相同的部件。在附图中:
图1为本公开实施例的发现节点的方法的流程图之一;
图2为本公开实施例的发现节点的方法的流程图之二;
图3为本公开实施例的链路建立的方法的流程图之一;
图4为本公开实施例的链路建立的方法的流程图之二;
图5为本公开实施例的发现中继节点的示意图;
图6为本公开实施例的链路建立的示意图;
图7为本公开实施例的第一节点的示意图;
图8为本公开实施例的第二节点的示意图;
图9为本公开实施例的第三节点的示意图;
图10为本公开实施例的第四节点的示意图;
图11为本公开实施例的终端的示意图。
具体实施方式
下面将结合本公开实施例中的附图,对本公开实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本公开一部分实施例,而不是全部的实施例。基于本公开中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本公开保护的范围。
本申请的说明书和权利要求书中的术语“包括”以及它的任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。此外,说明书以及权利要求中使用“和/或”表示所连接对象的至少其中之一,例如A和/或B,表示包含单独A,单独B,以及A和B都存在三种情况。
在本公开实施例中,“示例性的”或者“例如”等词用于表示作例子、例证或说明。本公开实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更可选或更具优势。确切而言,使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
本文所描述的技术不限于长期演进型(Long Time Evolution,LTE)/LTE的演进(LTE-Advanced,LTE-A)系统,并且也可用于各种无线通信系统,诸如码分多址(Code Division Multiple Access,CDMA)、时分多址(Time Division Multiple Access,TDMA)、频分多址(Frequency Division Multiple Access,FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access,OFDMA)、单载波频分多址(Single-carrier Frequency-Division Multiple Access,SC-FDMA)和其他系统。
术语“系统”和“网络”常被可互换地使用。CDMA系统可实现诸如CDMA2000、通用地面无线电接入(Universal Terrestrial Radio Access,UTRA)等无线电技术。UTRA包括宽带CDMA(Wideband Code Division Multiple Access,WCDMA)和其他CDMA变体。TDMA系统可实现诸如全球移动通信系统(Global System for Mobile Communication,GSM)之类的无线电技术。OFDMA系统可实现诸如超移动宽带(Ultra Mobile Broadband,UMB)、演进型UTRA(Evolution-UTRA,E-UTRA)、IEEE 802.11(无线保真(Wireless Fidelity,Wi-Fi))、IEEE 802.16(全球微波接入互操作性(Worldwide Interoperability for Microwave Access,WiMAX))、IEEE 802.20、Flash-OFDM等无线电技术。UTRA和E-UTRA是通用移动电信系统(Universal Mobile Telecommunications System,UMTS)的部分。LTE和更高级的LTE(如LTE-A)是使用E-UTRA的新UMTS版本。UTRA、E-UTRA、UMTS、LTE、LTE-A以及GSM在来自名为“第三代伙伴项目”(3rd Generation Partnership Project,3GPP)的组织的文献中描述。CDMA2000和UMB在来自名为“第三代伙伴项目2”(3GPP2)的组织的文献中描述。本文所描述的技术既可用于以上提及的系统和无线电技术,也可用于其他系统和无线电技术。
参见图1,本公开实施例提供一种发现节点的方法,该方法的执行主体为第一节点,例如终端,包括:步骤101和步骤102。
步骤101:接收中继请求,所述中继请求是由第二节点发起的;
上述中继请求可以称为:终端间的中继请求(UE to UE relay请求)。
步骤102:如果所述第一节点能提供中继服务,则将所述第一节点确定为所述第二节点的中继节点;或者,如果所述第一节点能提供第一业务的服务,则将所述第一节点确定为所述第二节点的服务节点;其中,所述第一业务包括:所述第二节点所需的业务。
中继服务相当于转发服务,如果第一节点能够中继服务,则该第一节点可以将中继请求转发给下一节点,其中该下一节点可以是终端,或者是网络设备。
例如图5中的UE2位于UE1和UE5之间提供中继服务。或者,UE5提供UE2和基站之间的中继服务。即,中继节点可以通过传输接口与网络侧连 接,例如,第一节点可以通过Uu接口与网络侧连接;或者中继节点与网络侧之间没有传输接口连接。
在一些实施方式中,中继请求可以包括以下一项或多项:
(1)第二节点的信息,例如第二节点的互联网协议(Internet Protocol,IP)地址,和/或,第二节点的标识(Identity,ID);
(2)第一业务的信息,该第一业务包括:第二节点所需的业务,例如直通链路业务(sidelink业务);
(3)中继节点的信息,例如中继节点的IP地址和/或中继节点的ID。
在一些实施方式中,中继节点可以通过传输接口与网络侧连接,在步骤102之后,图1所示的方法还可以包括:根据所述中继请求,建立第一节点与第二节点之间的链路。
例如,在图5中UE2建立与UE1之间的链路,或者,UE5建立与UE2之间的链路。
具体方式可以包括:根据中继请求,确定所述第一节点与所述第二节点之间的多条链路;从所述第一节点与所述第二节点之间的多条链路中,选择一条最优的链路,例如,根据信号质量,从多条链路中选择一条链路,或者根据传输时间,从多条链路中选择一条链路。
在一些实施方式中,在步骤101之后,所述方法还包括:
如果所述第一节点与网络侧之间没有传输接口,或者如果所述第一节点不能提供所述第一业务的服务,则向其他节点转发中继请求。
例如,在图5中UE2与网络侧之间没有传输接口,则UE2可以向UE5转发中继请求。
在一些实施方式中,经过转发的中继请求中还可以包括以下一项或多项:
(1)一个或多个转发过所述中继请求的节点的信息,例如节点的IP地址和/或节点的ID;
(2)一个或多个所述中继请求经过的链路的信息,例如链路的标识。
在本公开实施例中,终端可以通过中继请求发现中继节点或者服务节点,使得该终端即使不在基站覆盖的区域时,也可以通过中继节点间接或通过服务节点直接获取该终端所需的业务的服务。
参见图2,本公开实施例还提供一种发现节点的方法,该方法的执行主体为第二节点,例如终端(user equipment,UE),该方法包括:步骤201。
步骤201:向第一节点发送中继请求,所述中继请求包括以下一项或多项:
(1)第二节点的信息,例如第二节点的IP地址和/或第二节点的ID;
(2)第一业务的信息,其中,第一业务包括:所述第二节点所需的业务,例如sidelink业务;
(3)中继节点的信息,例如中继节点的IP地址和/或中继节点的ID,中继节点能为所述第二节点提供中继服务,所述中继节点可以通过传输接口与网络侧连接,或者中继节点与网络侧没有传输接口连接。
在一些实施方式中,在步骤201中,向所述中继节点发送发现请求(或者称为discovery signal);在接收不到所述发现请求的响应(response)消息时,向所述第一节点发送所述中继请求。
在一些实施方式中,在步骤201中,侦听所述中继节点发送的发现请求;在侦听不到所述发现请求时,向所述第一节点发送所述中继请求。
在本公开实施例中,终端可以通过中继请求发现中继节点或者服务节点,使得该终端即使不在基站覆盖的区域时,也可以通过中继节点间接或通过服务节点直接获取该终端所需的业务的服务。
参见图3,本公开实施例还提供一种链路建立的方法,该方法的执行主体为第三节点,例如UE,包括:步骤301和步骤302。
步骤301:从第四节点接收指示信息,所述指示信息指示能作为中继节点的节点信息,或者指示能提供第二业务(例如sidelink业务)的服务的节点信息;
在一些实施方式中,所述指示信息包括以下一项或多项:(1)第四节点的信息;(2)第二业务的信息,例如,该信息可以为业务标识;(3)第四节点周围能作为中继节点的其他节点的信息;(4)第四节点周围能提供所述第二业务的服务的其他节点的信息。进一步地,上述(1)、(3)和(4)中的信息可以为IP地址和/或ID。
步骤302:向所述第四节点发送第一建立请求,所述第一建立请求用于请求建立所述第三节点和所述第四节点之间的链路;
其中,所述中继节点能为所述第三节点提供中继服务,可选地,所述中继节点通过传输接口与网络侧连接,或者中继节点与网络侧没有传输接口连接;
所述第二业务包括:所述第三节点所需的业务。
在一些实施方式中,所述第一建立请求包括以下一项或多项:
(1)第三节点的信息,例如,第三节点的IP地址和/或第三节点的ID;
(2)第四节点的信息,例如,第四节点的IP地址和/或第四节点的ID;
(3)第二业务的信息。
在本公开实施例中,终端可以发现中继节点或者服务节点,使得该终端即使不在基站覆盖的区域时,也可以通过中继节点间接或通过服务节点直接获取该终端所需的业务的服务。
参见图4,本公开实施例还提供一种链路建立的方法,该方法的执行主体为第四节点,例如UE,包括:步骤401和步骤402。
步骤401:从第三节点接收第一建立请求,所述第一建立请求用于请求建立所述第三节点和所述第四节点之间的链路;
在一些实施方式中,所述第一建立请求可以包括以下一项或多项:
(1)第三节点的信息,例如,第三节点的IP地址和/或第三节点的ID;
(2)第四节点的信息,例如,第四节点的IP地址和/或第四节点的ID;
(3)第二业务的信息,例如,业务标识,第二业务可以是sidelink业务。
步骤402:根据所述第一建立请求,判断是否建立所述第三节点和所述第四节点之间的链路,或者判断所述第四节点是否能作为中继节点;
其中,所述中继节点能为所述第三节点提供中继服务,可选地,所述中继节点可以通过传输接口(例如Uu接口)与网络侧连接,或者中继节点与网络侧没有传输接口连接。
在一些实施方式中,在步骤402之后,所述方法还包括:
如果所述第四节点能作为中继节点,则选择具有中继功能的第五节点,并向所述第五节点发送第二建立请求,所述第二建立请求用于请求建立所述第四节点和所述第五节点之间的链路。
在本公开实施例中,终端可以发现中继节点或者服务节点,使得该终端即使不在基站覆盖的区域时,也可以通过中继节点间接或通过服务节点直接获取该终端所需的业务的服务。
实施例一:UE寻找另外一个UE做中继节点。
一个UE可以寻找另外一个UE作为进行sidelink业务。如图5所示UE1需要找UE5进行sidelink业务。
步骤1:UE1发送发现信号(discovery signal)给UE5,或者,UE1侦听UE5的discovery signal。
如果UE1接收不到UE5的discovery signal的响应(response),或者UE1侦听不到UE5的discovery signal,UE1发送UE to UE relay请求给周边UE。
进一步地,UE to UE relay请求中可以包括:UE1和/或UE5的信息,其中,UE1的信息包括:UE1 ID和/或UE1 IP,UE5的信息包括:UE5 ID和/或UE5 IP。
步骤2:如果一个UE收到UE1发送的UE to UE relay请求,并且该UE可以给UE 1做中继relay,例如该UE是UE2;或者一个UE接收到UE to UE relay请求后会将该UE to UE relay请求转发给其它周边UE,一直到出现一个能做中继(relay)又有Uu接口的UE,例如UE5。
每次转发UE to UE relay请求时,UE to UE relay请求中可以携带以下一项或多项:需要relay的UE(例如UE1)的信息;所有转发的UE的信息;每次转发的UE之间的链路信号质量。
例如,以UE6转发UE to UE relay请求为例。
UE6转发UE to UE relay请求给UE5时,该UE to UE relay请求中可以携带:
(1)UE1的信息,例如UE1 ID和/或UE1 IP地址;
(2)UE2的信息,例如UE2 ID和/或UE2 IP地址;
(3)UE6的信息,例如UE6 ID和/或UE6 IP地址;
(4)UE5的信息,例如UE5 ID和/或UE5 IP地址
(5)UE1和UE2之间的链路信号质量;
(6)UE2和UE6之间的链路信号质量;
(7)UE6和UE5之间的链路信号质量。
步骤3:中继节点收到UE to UE relay请求之后,中继节点行为可包括:
建立UE to UE relay连接到发起UE to UE relay请求的UE,如图5中的UE1。具体方式如下:
方式1:根据UE to UE relay请求,中继节点可选择到UE1的路径(或者称为链路)。
例如,UE5可选择的路径可以为:
路径1:UE5<->UE2<->UE1
路径2:UE5<->UE6<->UE2<->UE1
方式2:根据UE to UE relay请求,选择最优或最佳路径。例如:如图6所示,建立路:UE5<->UE2<->UE1。
实施方式二:UE寻找服务一个业务节点UE。
UE需要业务(S1)的服务节点,但是UE不知道哪一个UE能提供S1,具体步骤如下:
步骤1:UE发送S1的发现信号(discovery signal)给周边UE。
例如,UE1发送S1的discovery signal给周边UE2和/或UE3,其中S1的discovery signal中可以包括以下一项或多项:
(1)UE1的信息,例如UE1 ID和/或UE1 IP地址;
(2)S1的信息,例如S1的识别信息。
步骤2:周边UE(例如UE2)收到S1的discovery signal,该周边UE的行为可以包括:
(1)如果周边UE能提供S1的服务,UE2可以建立UE1之间的连接,并开始给UE1服务。
(2)如果UE不能提供S1的服务,周边UE可以把S1的discovery signal逐步转发给其它节点。
例如,UE2转发给UE6的discovery signal可以包括:
(1)UE1的信息,例如UE1 ID和/或UE1 IP地址;
(2)S1的信息,例如S1的识别信息;
(3)UE2的信息,例如UE2 ID和/或UE2 IP地址。
(4)每次转发的UE之间的链路信号质量,如:UE1和UE2之间链路信号质量,UE2和UE6之间链路信号质量。
在本实施方式中,UE之间可以转发S1的discovery signal一直到找到能提供S1服务的UE。
本公开实施例三:UE指示能做中继节点或能提供某个业务的服务。
如果一个UE能做中继节点,UE在空口广播指示信息,指示能做中继节点或能提供某个业务的服务。
可选地,指示信息可以包括以下一项或多项:
(1)UE的ID和/或IP,如UE2 ID和/或UE2 IP;
(2)UE能提供的服务业务的信息;
(3)UE周边的其它能做中继节点的ID和/或IP地址;
(4)UE周边的其它UE能提供的服务业务的信息。
当一个UE需要找中继节点或找到能提供某个业务的服务,UE在空口侦听其它UE发出能做中继节点或能提供某个业务的服务信号。
如果UE(如UE1)发现某个UE(如UE2)发出能做中继节点或能提供某个业务的服务信号,UE1向该UE2发起建立传输接口的请求信息。
可选地,请求信息可以包括以下一项或多项:
(1)UE的ID和/或IP地址,例如UE2 ID和/或UE2 IP地址;
(2)UE能提供的服务业务的信息。
如果某个UE(例如UE2)收到另外一个UE(例如UE1)的接口建立请求,UE2可决定接受建立接口的请求并同意建立。
如果UE2同意做中继节点,UE2会选择转发的节点(例如UE5)并向UE5发起建立转发接口的请求信息。
可选地,转发接口的请求信息中可以包括以下一项或多项:
(1)UE1的信息,例如UE1 ID和/或UE1 IP地址;
(2)业务的信息,例如业务识别信息;
(3)UE2的信息,例如UE2 ID和/或UE2 IP地址。
本公开实施例中还提供了一种第一节点,由于第一节点解决问题的原理与本公开实施例中方法相似,因此该第一节点的实施可以参见方法的实施,重复之处不再敷述。
参见图7,本公开实施例还提供一种第一节点,该第一节点700包括:
第一接收模块701,用于接收中继请求,所述中继请求是由第二节点发起的;
第一确定模块702,用于如果所述第一节点能提供中继服务,则将所述第一节点确定为所述第二节点的中继节点;或者,如果所述第一节点能提供第一业务的服务,则将所述第一节点确定为所述第二节点的服务节点;其中,所述第一业务包括:所述第二节点所需的业务。
例如,第一节点通过Uu接口与网络侧连接。
在一些实施方式中,中继请求包括以下一项或多项:
(1)第二节点的信息,例如第二节点的互联网协议(Internet Protocol,IP)地址,或者第二节点的标识(Identity,ID);
(2)第一业务的信息,第一业务包括:第二节点所需的业务;
(3)中继节点的信息,例如中继节点的IP地址,或者中继节点的ID。
在一些实施方式中,第一节点700还可以包括:第一建立模块,用于在中继节点可以通过传输接口与网络侧连接时,根据所述中继请求,建立第一节点与第二节点之间的链路。具体方式可以包括:根据中继请求,确定所述第一节点与所述第二节点之间的多条链路;从所述第一节点与所述第二节点之间的多条链路中,选择一条链路,例如,根据信号质量,从多条链路中选择一条链路,或者根据传输时间,从多条链路中选择一条链路。
在一些实施方式中,第一节点700还可以包括:第一发送模块,用于如果所述第一节点与网络侧之间没有传输接口,或者如果所述第一节点不能提供所述第一业务的服务,则向其他节点转发中继请求。
在一些实施方式中,经过转发的所述中继请求中还包括以下一项或多项:
(1)一个或多个转发过所述中继请求的节点的信息;
(2)一个或多个所述中继请求经过的链路的信息,例如节点的IP地址,或者节点的ID。
本公开实施例提供的第一节点,可以执行上述如图1所示的实施例,其实现原理和技术效果类似,本实施例此处不再赘述。
本公开实施例中还提供了一种第二节点,由于第二节点解决问题的原理与本公开实施例中方法相似,因此该第二节点的实施可以参见方法的实施,重复之处不再敷述。
参见图8,本公开实施例还提供一种第二节点,该第二节点800包括:
第二发送模块801,用于向第一节点发送中继请求,所述中继请求包括以下一项或多项:
(1)第二节点的信息,例如第二节点的IP地址,或者第二节点的ID;
(2)第一业务的信息,第一业务包括:所述第二节点所需的业务;
(3)中继节点的信息,例如中继节点的IP地址,或者中继节点的ID,中继节点能为所述第二节点提供中继服务,可选地,所述中继节点通过传输接口与网络侧连接,或者中继节点与网络侧没有传输接口连接。
在一些实施方式中,第二发送模块801进一步用于在接收不到发现请求的响应消息时,向所述第一节点发送所述中继请求。
在一些实施方式中,第二发送模块801进一步用于在侦听不到中继节点发送的发现请求时,向所述第一节点发送所述中继请求。
本公开实施例提供的第二节点,可以执行上述如图2所示的实施例,其实现原理和技术效果类似,本实施例此处不再赘述。
本公开实施例中还提供了一种第三节点,由于第三节点解决问题的原理与本公开实施例中方法相似,因此该第三节点的实施可以参见方法的实施,重复之处不再敷述。
参见图9,本公开实施例还提供一种第三节点,该第三节点900包括:
第二接收模块901,用于从第四节点接收指示信息,所述指示信息指示能作为中继节点的节点信息,或者指示能提供第二业务的服务的节点信息;
在一些实施方式中,所述指示信息包括以下一项或多项:(1)第四节点的信息;(2)第二业务的信息;(3)第四节点周围能作为中继节点的其他 节点的信息;(4)第四节点周围能提供所述第二业务的服务的其他节点的信息。进一步地,上述信息可以为IP地址和/或ID。
第三发送模块902,用于向所述第四节点发送第一建立请求,所述第一建立请求用于请求建立所述第三节点和所述第四节点之间的链路;
其中,所述中继节点能为所述第三节点提供中继服务,可选地,所述中继节点通过传输接口与网络侧连接,或者中继节点与网络侧没有传输接口连接;
所述第二业务包括:所述第三节点所需的业务。
在一些实施方式中,所述第一建立请求包括以下一项或多项:
(1)第三节点的信息,例如,第三节点的IP地址和/或第三节点的ID;
(2)第四节点的信息,例如,第四节点的IP地址和/或第四节点的ID;
(3)第二业务的信息。
本公开实施例提供的第三节点,可以执行上述如图3所示的实施例,其实现原理和技术效果类似,本实施例此处不再赘述。
本公开实施例中还提供了一种第四节点,由于第四节点解决问题的原理与本公开实施例中方法相似,因此该第四节点的实施可以参见方法的实施,重复之处不再敷述。
参见图10,本公开实施例还提供一种第四节点,该第四节点1000包括:
第三接收模块1001,用于从第三节点接收第一建立请求,所述第一建立请求用于请求建立所述第三节点和所述第四节点之间的链路;
在一些实施方式中,所述第一建立请求包括以下一项或多项:
(1)第三节点的信息,例如,第三节点的IP地址和/或第三节点的ID;
(2)第四节点的信息,例如,第四节点的IP地址和/或第四节点的ID;
(3)第二业务的信息。
判断模块1002,用于根据所述第一建立请求,判断是否建立所述第三节点和所述第四节点之间的链路,或者判断所述第四节点是否能作为中继节点;
其中,所述中继节点能为所述第三节点提供中继服务,可选地,所述中继节点通过传输接口与网络侧连接,或者中继节点与网络侧没有传输接口连接。
在一些实施方式中,该第四节点1000还包括:第四发送模块,用于如果所述第四节点能作为中继节点,则选择具有中继功能的第五节点,并向所述第五节点发送第二建立请求,所述第二建立请求用于请求建立所述第四节点和所述第五节点之间的链路。
本公开实施例提供的第四节点,可以执行上述如图4所示的实施例,其实现原理和技术效果类似,本实施例此处不再赘述。
如图11所示,图11所示的终端1100包括:至少一个处理器1101、存储器1102、至少一个网络接口1104和用户接口1103。终端1100中的各个组件通过总线系统1105耦合在一起。可理解,总线系统1105用于实现这些组件之间的连接通信。总线系统1105除包括数据总线之外,还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见,在图11中将各种总线都标为总线系统1105。
其中,用户接口1103可以包括显示器、键盘或者点击设备(例如,鼠标,轨迹球(trackball)、触感板或者触摸屏等。
可以理解,本公开实施例中的存储器1102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,DDRSDRAM)、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,DRRAM)。本公开实施例描述的系统和方法的存储器1102旨在包括但不限于这些和任意其它适合类型的存储器。
在一些实施方式中,存储器1102保存了如下的元素,可执行模块或者数据结构,或者他们的子集,或者他们的扩展集:操作系统11021和应用程序11022。
其中,操作系统11021,包含各种系统程序,例如框架层、核心库层、驱动层等,用于实现各种基础业务以及处理基于硬件的任务。应用程序11022,包含各种应用程序,例如媒体播放器(Media Player)、浏览器(Browser)等,用于实现各种应用业务。实现本公开实施例方法的程序可以包含在应用程序11022中。
在本公开的一个实施例中,通过调用存储器1102保存的程序或指令,具体的,可以是应用程序11022中保存的程序或指令,执行时实现以上图1~4所示方法所述的步骤。
本公开实施例提供的终端,可以执行上述图1~4所示方法实施例,其实现原理和技术效果类似,本实施例此处不再赘述。
结合本公开公开内容所描述的方法或者算法的步骤可以硬件的方式来实现,也可以是由处理器执行软件指令的方式来实现。软件指令可以由相应的软件模块组成,软件模块可以被存放于RAM、闪存、ROM、EPROM、EEPROM、寄存器、硬盘、移动硬盘、只读光盘或者本领域熟知的任何其它形式的存储介质中。一种示例性的存储介质耦合至处理器,从而使处理器能从该存储介质读取信息,且可向该存储介质写入信息。当然,存储介质也可以是处理器的组成部分。处理器和存储介质可以位于专用集成电路(Application Specific Integrated Circuit,ASIC)中。另外,该ASIC可以位于核心网接口设备中。当然,处理器和存储介质也可以作为分立组件存在于核心网接口设备中。
本领域技术人员应该可以意识到,在上述一个或多个示例中,本公开所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。当使用软件实现时,可以将这些功能存储在计算机可读介质中或者作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质,其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是通用或专用计算机能存取的任何可用介质。
以上所述的具体实施方式,对本公开的目的、技术方案和有益效果进行 了进一步详细说明,所应理解的是,以上所述仅为本公开的具体实施方式而已,并不用于限定本公开的保护范围,凡在本公开的技术方案的基础之上,所做的任何修改、等同替换、改进等,均应包括在本公开的保护范围之内。
本领域内的技术人员应明白,本公开实施例可提供为方法、系统、或计算机程序产品。因此,本公开实施例可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本公开实施例可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、只读光盘(compact disc read-only memory,CD-ROM)、光学存储器等)上实施的计算机程序产品的形式。
本公开实施例是参照根据本公开实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然,本领域的技术人员可以对本公开实施例进行各种改动和变型而不脱离本公开的精神和范围。这样,倘若本公开实施例的这些修改和变型属于本公开权利要求及其等同技术的范围之内,则本公开也意图包含这些改动和变型在内。

Claims (21)

  1. 一种发现节点的方法,应用于第一节点,包括:
    接收中继请求,所述中继请求是由第二节点发起的;
    如果所述第一节点能提供中继服务,则将所述第一节点确定为所述第二节点的中继节点;或者,如果所述第一节点能提供第一业务的服务,则将所述第一节点确定为所述第二节点的服务节点;
    其中,所述第一业务包括:所述第二节点所需的业务。
  2. 根据权利要求1所述的方法,还包括:
    如果所述第一节点与网络侧之间没有传输接口,或者如果所述第一节点不能提供所述第一业务的服务,则向其他节点转发中继请求。
  3. 根据权利要求1所述的方法,其中,所述第一节点与网络侧通过传输接口连接。
  4. 根据权利要求3所述的方法,其中,在将所述第一节点确定为所述第二节点的中继节点之后,所述方法还包括:
    根据所述中继请求,建立所述第一节点与所述第二节点之间的链路。
  5. 根据权利要求4所述的方法,其中,根据所述中继请求,建立所述第一节点与所述第二节点之间的链路,包括:
    根据所述中继请求,确定所述第一节点与所述第二节点之间的多条链路;
    从所述第一节点与所述第二节点之间的多条链路中,选择一条最优链路。
  6. 根据权利要求1所述的方法,其中,所述中继请求包括以下一项或多项:
    所述第二节点的信息;
    第一业务的信息,所述第一业务包括:所述第二节点所需的业务;
    所述中继节点的信息。
  7. 根据权利要求6所述的方法,其中,经过转发的所述中继请求中还包括以下一项或多项:
    一个或多个转发过所述中继请求的节点的信息;
    一个或多个所述中继请求经过的链路的信息。
  8. 一种发现节点的方法,应用于第二节点,包括:
    向第一节点发送中继请求,所述中继请求包括以下一项或多项:
    所述第二节点的信息;
    第一业务的信息,所述第一业务包括:所述第二节点所需的业务;
    中继节点的信息,所述中继节点能为所述第二节点提供中继服务。
  9. 根据权利要求8所述的方法,其中,向第一节点发送中继请求,包括:
    向所述中继节点发送发现请求;
    在接收不到所述发现请求的响应消息时,向所述第一节点发送所述中继请求;
    或者,
    侦听所述中继节点发送的发现请求;
    在侦听不到所述发现请求时,向所述第一节点发送所述中继请求。
  10. 一种链路建立的方法,应用于第三节点,包括:
    从第四节点接收指示信息,所述指示信息指示能作为中继节点的节点信息,或者指示能提供第二业务的服务的节点信息;
    向所述第四节点发送第一建立请求,所述第一建立请求用于请求建立所述第三节点和所述第四节点之间的链路;
    其中,所述中继节点能为所述第三节点提供中继服务;
    所述第二业务包括:所述第三节点所需的业务。
  11. 根据权利要求10所述的方法,其中,所述指示信息包括以下一项或多项:
    所述第四节点的信息;
    所述第二业务的信息;
    所述第四节点周围能作为中继节点的其他节点的信息;
    所述第四节点周围能提供所述第二业务的服务的其他节点的信息。
  12. 根据权利要求10所述的方法,其中,所述第一建立请求包括以下一项或多项:
    所述第三节点的信息;
    所述第四节点的信息;
    所述第二业务的信息。
  13. 一种链路建立的方法,应用于第四节点,包括:
    从第三节点接收第一建立请求,所述第一建立请求用于请求建立所述第三节点和所述第四节点之间的链路;
    根据所述第一建立请求,判断是否建立所述第三节点和所述第四节点之间的链路,或者判断所述第四节点是否能作为中继节点;
    其中,所述中继节点能为所述第三节点提供中继服务。
  14. 根据权利要求13所述的方法,还包括:
    如果所述第四节点能作为中继节点,则选择具有中继功能的第五节点,并向所述第五节点发送第二建立请求,所述第二建立请求用于请求建立所述第四节点和所述第五节点之间的链路。
  15. 根据权利要求13所述的方法,其中,所述第一建立请求或第二建立请求包括以下一项或多项:
    所述第三节点的信息;
    所述第四节点的信息;
    第二业务的信息,所述第二业务包括:所述第三节点所需的业务。
  16. 一种第一节点,包括:
    第一接收模块,用于接收中继请求,所述中继请求是由第二节点发起的;
    第一确定模块,用于如果所述第一节点能提供中继服务,则将所述第一节点确定为所述第二节点的中继节点;或者,如果所述第一节点能提供第一业务的服务,则将所述第一节点确定为所述第二节点的服务节点;其中,所述第一业务包括:所述第二节点所需的业务。
  17. 一种第二节点,包括:
    第二发送模块,用于向第一节点发送中继请求,所述中继请求包括以下一项或多项:
    第二节点的信息;
    第一业务的信息,第一业务包括:所述第二节点所需的业务;
    中继节点的信息,所述中继节点能为所述第二节点提供中继服务。
  18. 一种第三节点,包括:
    第二接收模块,用于从第四节点接收指示信息,所述指示信息指示能作为中继节点的节点信息,或者指示能提供第二业务的服务的节点信息;
    第三发送模块,用于向所述第四节点发送第一建立请求,所述第一建立请求用于请求建立所述第三节点和所述第四节点之间的链路;
    其中,所述中继节点能为所述第三节点提供中继服务;
    所述第二业务包括:所述第三节点所需的业务。
  19. 一种第四节点,包括:
    第三接收模块,用于从第三节点接收第一建立请求,所述第一建立请求用于请求建立所述第三节点和所述第四节点之间的链路;
    所述第一建立请求包括以下一项或多项:
    所述第三节点的信息;
    所述第四节点的信息;
    第二业务的信息,所述第二业务包括:所述第三节点所需的业务。
  20. 一种终端,包括:处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序,所述程序被所述处理器执行时实现如权利要求1至9中任一项所述的发现节点的方法的步骤;或者,实现如权利要求10至15中任一项所述的链路建立的方法的步骤。
  21. 一种计算机可读存储介质,所述计算机可读存储介质上存储有计算机程序,所述计算机程序被处理器执行时实现如权利要求1至9中任一项所述的发现节点的方法的步骤;或者,实现如权利要求10至15中任一项所述的链路建立的方法的步骤。
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