WO2015143973A1 - 一种通信路径的确定方法和装置 - Google Patents

一种通信路径的确定方法和装置 Download PDF

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Publication number
WO2015143973A1
WO2015143973A1 PCT/CN2015/073605 CN2015073605W WO2015143973A1 WO 2015143973 A1 WO2015143973 A1 WO 2015143973A1 CN 2015073605 W CN2015073605 W CN 2015073605W WO 2015143973 A1 WO2015143973 A1 WO 2015143973A1
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node
network
wireless
wireless node
auxiliary
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PCT/CN2015/073605
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English (en)
French (fr)
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刘佳敏
寇会如
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电信科学技术研究院
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Priority to US15/128,959 priority Critical patent/US10356690B2/en
Priority to EP15769059.5A priority patent/EP3128787B1/en
Publication of WO2015143973A1 publication Critical patent/WO2015143973A1/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
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/24Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2603Arrangements for wireless physical layer control
    • H04B7/2606Arrangements for base station coverage control, e.g. by using relays in tunnels
    • 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
    • H04W40/12Communication route or path selection, e.g. power-based or shortest path routing based on transmission quality or channel quality
    • H04W40/125Communication route or path selection, e.g. power-based or shortest path routing based on transmission quality or channel quality using a measured number of retransmissions as a link metric
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04Large scale networks; Deep hierarchical networks
    • H04W84/042Public Land Mobile systems, e.g. cellular systems
    • H04W84/047Public Land Mobile systems, e.g. cellular systems using dedicated repeater stations
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method and apparatus for determining a communication path.
  • LTE Long Term Evolution
  • eNBs base stations
  • eNBs and core network nodes for example, mobility) Management entities (MMEs), Serving Gateways (S-GWs, etc.) are also connected by wired links, as shown in Figure 1.
  • MMEs mobility Management entities
  • S-GWs Serving Gateways
  • the eNB and the core network nodes are also connected by a wired link, and between the Relay and its belonging primary base station (Donor eNB, DeNB). Communicate through the wireless interface, as shown in Figure 2.
  • wired backhaul links ie, small cell-to-network connections
  • the wireless backhaul link is also a typical scenario.
  • the small cell needs to communicate with the network side node and/or the large coverage macro station over the wireless interface.
  • the embodiment of the invention provides a method and a device for determining a communication path, which solves the problem that the existing small channel configured to access the network directly communicates with the wireless channel between the macro station and the path may lead to low transmission efficiency. And transmission The problem of large delay.
  • the wireless node When the wireless node needs to access the network, it acquires its own optimal communication path to the network;
  • the wireless node communicates with the network by acquiring the optimal communication path
  • the optimal communication path indicates that the wireless node accesses the network through at least one auxiliary node, and at least one of the at least one auxiliary node is a wired node directly connected to the network.
  • the wireless node acquires its own optimal communication path to the network when it needs to access the network, including:
  • the wireless node selects, as a node having a function of providing a data forwarding service for other nodes, as a first hop auxiliary node that is connected to the wireless node and directly connected to the wireless node, to determine The optimal communication path from the self to the network is to access the network through the first hop auxiliary node;
  • Determining, by the pre-configured wireless node and the auxiliary node, the at least one auxiliary node included in the optimal communication path of the network to determine the optimal communication path to the network through the at least one auxiliary node A secondary node accesses the network;
  • the at least one auxiliary node selected by the network side node for the wireless node to determine an optimal communication path to the network by using the at least one auxiliary node to access the network, where the network
  • the side node determines an optimal communication path of the wireless node to the network according to the obtained information related to the wireless node accessing the network.
  • the wireless node selects, as a node that has a function of providing a data forwarding service for other nodes, as a first hop auxiliary node that is connected to the wireless node and directly connected to the wireless node, include:
  • the wireless node selects a node that satisfies the set condition from a node having a function of providing a data forwarding service for other nodes, as a first hop assisting that the wireless node accesses the network and is directly connected to the wireless node. Node; or,
  • the wireless node sends a first request message to a node having a function of providing a data forwarding service for other nodes, and returns according to the received node having at least one function capable of providing a data forwarding service for other nodes.
  • a first reply message selecting a node as a first hop auxiliary node that is connected to the wireless node and directly connected to the wireless node, where the first request message is used to request a node that receives the first request message And accessing the network, the first reply message is used to notify the wireless node whether the node that sends the first reply message is capable of serving as a secondary node of the wireless node accessing the network.
  • the method before the wireless node receives the at least one auxiliary node that is selected by the network side node and is selected by the network node, the method further includes:
  • the wireless node For a node having a function of providing a data forwarding service for other nodes, the wireless node measures the signal sent by the node, and reports the measured first measurement result to the network side node to request the network side node to The wireless node determines an optimal communication path; or,
  • the wireless node measures the signal sent by the node, and reports the first measurement result of the first measurement result that meets the set threshold to the first measurement result.
  • the network side node determines the optimal communication path for itself by requesting the network side node.
  • the wireless node determines a node around itself having a function capable of providing data forwarding services for other nodes:
  • the wireless node After receiving the message that is sent by any node and carrying the indication information, the wireless node determines that the node that sends the indication information has a function of providing a data forwarding service for other nodes, and the indication information is used to indicate that it has other capabilities.
  • the node provides the function of the data forwarding service; or,
  • the wireless node sends a first message to each node around itself, and when receiving the second message returned by any node, determining that the node that sends the second message has the function of providing data forwarding service for other nodes
  • the first message is used to request that a node having a function capable of providing a data forwarding service for other nodes among the surrounding nodes returns a second message.
  • the method before the wireless node receives the at least one auxiliary node that is selected by the network side node and is selected by the network node, the method further includes:
  • the wireless node sends a sounding signal to a node around itself, wherein the node around the wireless node, after receiving the sounding signal, measures the sounding signal, and the measured second measurement result or measurement And obtaining, by the second measurement result, the second measurement result that meets the set threshold is reported to the network side node, to request the network side node to determine an optimal communication path for the wireless node; or
  • the wireless node sends a first request message to a node having a function of providing a data forwarding service for other nodes, wherein the first request message is used to request a node accessing the network by receiving the first request message.
  • the node that receives the first request message sends a second request message to the network side node, where the second request message is used to notify the network, when determining that the wireless node can access the network as a secondary node.
  • the node that the side node sends the second request message can serve as a secondary node of the wireless node accessing the network.
  • the wireless node communicates with the network by using the obtained optimal communication path, including:
  • the wireless node acquires, from the information pre-configured by the network side node, a resource configured by the network side node as a communication configuration between the wireless node and the first hop auxiliary node directly connected to the wireless communication node, and uses the network
  • the resource configured by the side node communicates with the first hop auxiliary node;
  • the wireless node reports the amount of data that it needs to transmit to the network side node; and the wireless node receives the resource configuration information sent by the network side node, and obtains the network side node as the wireless node in the optimal communication path and directly
  • the connected first hop auxiliary node is configured to use the current communication configuration resource, and uses the resource configured by the network side node to send the data to be transmitted to the first hop auxiliary node; or
  • the wireless node determines a resource used when communicating with the first hop auxiliary node by negotiating with a first hop auxiliary node that is directly connected to itself in the optimal communication path.
  • the wireless node communicates with the network by using the obtained optimal communication path, including:
  • the wireless node sends the uplink data that needs to be sent to the network side node to the first hop auxiliary node that is directly connected to the optimal communication path, where the first hop auxiliary node is based on the locally saved a mapping relationship between the channel of the network and the channel of the network to the wireless node, and transmitting the uplink data to the corresponding network side node through the channel of the uplink to the network;
  • the wireless node receives downlink data from a network side node that is sent by the first hop auxiliary node that is directly connected to the wireless node in the optimal communication path, where the first hop auxiliary node receives the network transmission Determining, according to the mapping relationship between the locally saved channel to the network and the channel of the wireless node, the wireless node corresponding to the downlink data, and forwarding the downlink data to the determined wireless node.
  • the method further includes:
  • the wireless node After receiving the notification message sent by the first hop auxiliary node directly connected to itself in the optimal communication path, the wireless node disconnects the connection with the first hop auxiliary node and reselects the new optimal communication.
  • the path accesses the network, and the notification message is used to notify the wireless node that the first hop auxiliary node cannot continue to provide the data forwarding service for the wireless node.
  • the network side node determines that any wireless node needs to access the network
  • the network side node determines an optimal communication path of the wireless node to the network, wherein the optimal communication path instructs the wireless node to communicate with the network through at least one auxiliary node, and at least one of the at least one auxiliary node
  • a secondary node is a wired node that is directly connected to the network.
  • the network side node determines an optimal communication path of the wireless node to the network, including:
  • the network side node selects a node that satisfies the set condition from among the nodes located around the wireless node and can provide data forwarding services for other nodes in a pre-measure manner, and according to the selected path of each node to the network, Determining at least one auxiliary node included in the optimal communication path of the wireless node to the network, and configuring a correspondence between the wireless node and the selected at least one auxiliary node to the wireless node and each selected Secondary node
  • the network side node determines an optimal communication path of the wireless node to the network according to the obtained information related to the wireless node accessing the network.
  • the network side node determines, according to the obtained information about the access node of the wireless node, the optimal communication path of the wireless node to the network, including:
  • the network side node Receiving, by the network side node, the first measurement result reported by the wireless node, according to the received first measurement result, selecting, from each node located around the wireless node and capable of providing data forwarding services for other nodes, satisfying a setting condition And determining, according to the selected path of each node to the network, the auxiliary node included in the optimal communication path of the wireless node to the network, and notifying the wireless node and each selected auxiliary node, where
  • the first measurement result is that the wireless node separately measures signals sent by each node having a function capable of providing data forwarding services for other nodes; or
  • selecting a node that satisfies the setting condition determining, according to the selected path of each node to the network, the auxiliary node included in the optimal communication path of the wireless node to the network, and notifying the wireless node and selecting the Each of the auxiliary nodes, wherein the second measurement result is that the node having the function of providing a data forwarding service for other nodes around the wireless node measures the sounding signal sent by the wireless node; or
  • the network side node receives a second request message sent by the node at least one of the nodes having the function of providing a data forwarding service for the other node, and selects, from each node that sends the second request message, that the setting condition is met. And determining, according to the selected path of each node to the network, the auxiliary node included in the optimal communication path of the wireless node to the network, and notifying the wireless node and each selected auxiliary node, where The second request message is used to notify the network side node that the node that sends the second request message can serve as a secondary node of the wireless node accessing the network.
  • the method further includes:
  • the network side node pre-configures resources for communication between the directly connected nodes in the optimal communication path, and configures the wireless node and at least one auxiliary node in the optimal communication path;
  • the network side node reconfigures the available resources for the communication between the directly connected nodes in the optimal communication path according to the resource usage of the current network, and configures the wireless node and the optimal by using the resource configuration information.
  • the network side node allocates resources for communication between directly connected nodes in the optimal communication path according to the resource usage of the current network and the amount of data that each node in the optimal communication path needs to transmit, and configures resources through resources.
  • Information is configured for the wireless node and at least one of the optimal communication paths.
  • the method further includes:
  • the network side node When the network side node needs to send the downlink data to the wireless node, determine, according to the optimal communication path, a first hop auxiliary node directly connected to the wireless node, and pass the downlink data to the first And transmitting, by the hopping node to the network, the first hop auxiliary node, so that the first hop auxiliary node forwards the downlink data to the wireless node.
  • the method further includes:
  • the network side node After receiving the notification message sent by the first hop assistant node directly connected to the wireless node in the optimal communication path, the network side node re-determines the optimal communication path of the wireless node to the network, and the notification message And the method for notifying the network side node that the first hop auxiliary node cannot continue to provide the data forwarding service for the wireless node.
  • a wireless node is provided by the embodiment of the present invention, and the wireless node includes:
  • a path obtaining module configured to acquire an optimal communication path of the wireless node to the network when the wireless node to which the wireless node belongs needs to access the network
  • a communication module configured to communicate with the network by using an optimal communication path obtained by the path obtaining module
  • the optimal communication path indicates that the wireless node accesses the network through at least one auxiliary node, and at least one of the at least one auxiliary node is a wired node directly connected to the network.
  • the path obtaining module is specifically configured to: select, from the node that has a function of providing a data forwarding service for other nodes, the node to access the network and the wireless a first hop auxiliary node directly connected to the node, to determine that the optimal communication path of the wireless node to the network is to access the network by using the first hop auxiliary node; or according to a pre-configured correspondence between the wireless node and the auxiliary node Determining at least one auxiliary node included in the optimal communication path of the wireless node to the network, to determine that the optimal communication path of the wireless node to the network is to access the network through the at least one auxiliary node; or, receiving The network side node notified by the network side node is the at least one auxiliary node selected by the wireless node, to determine that the optimal communication path of the wireless node to the network is to access the network by using the at least one auxiliary node, where the network side node Determining the wireless node according to the obtained information related to the wireless node
  • the path obtaining module selects, from a node having a function of providing a data forwarding service for other nodes around the wireless node, as a first node that is connected to the wireless node and directly connected to the wireless node.
  • Jump secondary nodes including:
  • a node having a function of providing a data forwarding service for other nodes around the wireless node From a node having a function of providing a data forwarding service for other nodes around the wireless node, selecting a node that satisfies the setting condition as a first hop auxiliary node that is connected to the wireless node and directly connected to the wireless node Or transmitting a first request message to a node having a function capable of providing a data forwarding service for other nodes around the wireless node, and returning according to the received surrounding node having at least one function capable of providing a data forwarding service for other nodes.
  • First reply message selecting a node as the wireless node accessing the network and the wireless node a directly connected first hop auxiliary node, where the first request message is used to request that a node that receives the first request message accesses a network, and the first reply message is used to notify the wireless node to send the first Whether a node replying to a message can serve as a secondary node for the wireless node to access the network.
  • the path obtaining module is further configured to: before receiving the at least one auxiliary node selected by the network side node for the wireless node, to provide a data forwarding service for other nodes a function node, the signal sent by the node is measured, and the measured first measurement result is reported to the network side node to request the network side node to determine an optimal communication path for the wireless node; or, after receiving the network Before the network side node notified by the side node is the at least one auxiliary node selected by the wireless node, the node has a function of providing a data forwarding service for other nodes, and the signal sent by the node is measured, and the measurement is obtained. The first measurement result that meets the set threshold is reported to the network side node to request the network side node to determine an optimal communication path for the wireless node.
  • the path obtaining module determines a node having a function of providing a data forwarding service for other nodes in accordance with the following manner:
  • the indication information is used to indicate that the data forwarding can be provided for other nodes.
  • the function of the service or, sending a first message to each of the surrounding nodes, and, upon receiving the second message returned by any of the nodes, determining that the node transmitting the second message has a data forwarding service capable of providing other nodes with a data forwarding service.
  • the function, wherein the first message is used to request a node in the surrounding nodes having a function capable of providing a data forwarding service for other nodes to return a second message.
  • the path obtaining module is further configured to:
  • the network side node Before receiving the at least one auxiliary node selected by the network side node, the network side node sends a sounding signal to the surrounding node, where the node around the wireless node receives the detecting signal And measuring the detection signal, and reporting the second measurement result that is obtained by the measurement or the second measurement result that meets the set threshold to the network side node, to request the network side node to be the Determining, by the wireless node, an optimal communication path; or, before receiving the at least one auxiliary node selected by the network side node, the network side node is provided with a function capable of providing a data forwarding service for other nodes Sending a first request message, where the first request message is used to request that the node that receives the first request message accesses the network, and the node that receives the first request message determines that it can serve as the wireless node When accessing the secondary node of the network, sending a second request message to the network side node, where the second Request message for informing the network side node of
  • the communication module is specifically configured to:
  • the one-hop auxiliary node transmits the data to be transmitted; or, by negotiating with
  • the communication module is specifically configured to:
  • the downlink data from the network side node sent by the hop auxiliary node wherein when the first hop auxiliary node receives the downlink data sent by the network, according to the locally saved channel to the network and the channel of the wireless node to the wireless node Mapping the relationship, determining a wireless node corresponding to the downlink data, and forwarding the downlink data to the determined wireless node.
  • the path obtaining module is further configured to:
  • the notification message is used to notify the wireless node that the first hop auxiliary node cannot continue to provide data forwarding services for the wireless node.
  • a first processing module configured to determine that any wireless node needs to access the network
  • a second processing module configured to determine an optimal communication path of the wireless node to a network, where the optimal communication path indicates that the wireless node communicates with a network through at least one auxiliary node, and the at least one auxiliary node At least one of the secondary nodes is a wired node that is directly connected to the network.
  • the second processing module is specifically configured to:
  • a pre-measurement manner among the nodes located around the wireless node and capable of providing data forwarding services for other nodes, selecting nodes satisfying the set conditions, and determining the location according to the selected path of each node to the network Determining, by the wireless node, at least one auxiliary node included in an optimal communication path of the network, and configuring a correspondence between the wireless node and the selected at least one auxiliary node to the wireless node and each selected auxiliary node; Or, root And determining, according to the obtained information related to the wireless node accessing the network, an optimal communication path of the wireless node to the network.
  • the second processing module determines an optimal communication path of the wireless node to the network according to the obtained information about the wireless node accessing the network, including:
  • the wireless node separately measures signals sent by each node having a function capable of providing data forwarding services for other nodes; or
  • the second measurement result is that a node having a function capable of providing a data forwarding service for other nodes around the wireless node measures a sounding signal sent by the wireless node;
  • the network side node further includes a third processing module, configured to:
  • Pre-configuring resources for communication between directly connected nodes in the optimal communication path, and configuring the wireless node and at least one auxiliary node in the optimal communication path or, according to current resource usage of the network Reconfiguring resources that can be used for communication between directly connected nodes in the optimal communication path, and configuring to the wireless node and at least one of the optimal communication paths by resource configuration information; or Configuring resources for communication between directly connected nodes in the optimal communication path according to resource usage of the current network and the amount of data to be transmitted by each node in the optimal communication path, and configuring the resource configuration information Giving the wireless node and at least one of the optimal communication paths.
  • the network side node further includes a fourth processing module, configured to:
  • the wireless node When the downlink data needs to be sent to the wireless node, determining, according to the optimal communication path, a first hop auxiliary node directly connected to the wireless node, and passing the downlink data to the first hop auxiliary node Transmitting a channel to the network to the first hop auxiliary node, so that the first hop auxiliary node forwards the downlink data to the wireless node.
  • the second processing module is further configured to: after receiving the notification message sent by the first hop assistant node directly connected to the wireless node in the optimal communication path, re-determining the The optimal communication path from the wireless node to the network, the notification message is used to notify the network side node that the first hop auxiliary node cannot continue to provide the data forwarding service for the wireless node.
  • Another wireless node provided by the embodiment of the present invention includes a transceiver and at least one processor connected to the transceiver, where:
  • the processor is configured to acquire an optimal communication path of the wireless node to the network when the wireless node to which the wireless node belongs needs to access the network; and communicate with the network by acquiring the optimal communication path;
  • the optimal communication path indicates that the wireless node accesses the network through at least one auxiliary node, and at least one of the at least one auxiliary node is a wired node directly connected to the network.
  • the processor is configured to: select, according to a node having a function of providing a data forwarding service for other nodes around a wireless node to which the user belongs, select a node as the wireless node accessing the network, and directly connected to the wireless node.
  • the first hop auxiliary node Connecting the first hop auxiliary node to determine that the optimal communication path of the wireless node to the network is to access the network by using the first hop auxiliary node; or determining, according to a pre-configured correspondence between the wireless node and the auxiliary node At least one auxiliary node included in the optimal communication path of the wireless node to which the network belongs to determine that the optimal communication path of the wireless node to the network is to access the network through the at least one auxiliary node; or, according to the transceiver Receiving, by the network side node notified by the network side node, at least one auxiliary node selected by the wireless node to which the wireless node belongs, to determine that the optimal communication path of the wireless node to the network is to access the network by using the at least one auxiliary node, where The network side node according to the obtained information related to the wireless node accessing the network The wireless node determines the optimal path to the communication network.
  • the processor selects, from a node around the wireless node to which it belongs, a function capable of providing a data forwarding service for other nodes, and selects a node as the first hop assisting that the wireless node accesses the network and is directly connected to the wireless node.
  • Nodes including:
  • a node that has a function of providing a data forwarding service for other nodes around a wireless node to which it belongs selects a node that satisfies the set condition as a first hop auxiliary node that the wireless node accesses the network and is directly connected to the wireless node;
  • the triggering transceiver sends a first request message to a node having a function of providing a data forwarding service for other nodes around the wireless node to which it belongs, and at least one of the surrounding received according to the transceiver has the capability of providing data for other nodes.
  • a first reply message returned by the node of the function of the forwarding service selecting a node as the first hop auxiliary node that the wireless node accesses the network and directly connected to the wireless node, wherein the first request message is used to request to receive The node to the first request message accesses the network, and the first reply message is used to notify the node that the wireless node sends the first reply message as a secondary node of the wireless node accessing the network.
  • the processor is further configured to: receive, at the transceiver, the network side node notified by the network side node Before at least one auxiliary node selected for the wireless node to which it belongs, the node that has the function of providing data forwarding service for other nodes is measured, and the signal sent by the node is measured, and the first measurement is triggered by the transceiver.
  • the measurement result is reported to the network side node to request the network side node to determine an optimal communication path for the wireless node; or, at the transceiver, the network side node notified by the network side node selects at least one selected by the wireless node to which the network node belongs.
  • the node Before the auxiliary node, the node sends a signal to the node that can provide the data forwarding service for other nodes, and the signal sent by the node is triggered, and the transceiver is triggered to meet the first threshold of the measured first measurement result.
  • the measurement result is reported to the network side node to request the network side node to determine an optimal communication path for the wireless node.
  • the processor determines a node having a function of providing a data forwarding service for other nodes in accordance with the following manner:
  • the transceiver After the transceiver receives the message carrying the indication information sent by any node, determining that the node that sends the indication information has a function capable of providing a data forwarding service for other nodes, the indication information is used to indicate that the device can be The node provides the function of the data forwarding service; or,
  • the transceiver When the transceiver receives the second message returned by any node, it is determined that the node that sends the second message has a function of being able to provide data forwarding services for other nodes, wherein the transceiver sends the first node to the surrounding nodes.
  • a message, the first message is used to request a node in the surrounding nodes that has a function of providing a data forwarding service for other nodes to return a second message.
  • transceiver is also configured to:
  • the neighboring node Before receiving the at least one auxiliary node selected by the network side node notified by the network side node, the neighboring node sends a sounding signal to the surrounding node, where the node around the wireless node receives the detecting signal And measuring the detection signal, and reporting the second measurement result obtained by the measurement or the second measurement result of the second measurement result that meets the set threshold to the network side node, to request the network side node to be the wireless
  • the node determines the optimal communication path; or, before receiving the at least one auxiliary node selected by the network side node notified by the network side node for the wireless node to which the network node belongs, the node having the function of providing the data forwarding service to other nodes Sending a first request message, where the first request message is used to request that the node that receives the first request message accesses the network, and the node that receives the first request message determines that it can be connected as the wireless node When entering the secondary node of the network, sending a second request
  • the processor is configured to:
  • a resource configured by the network side node as a communication configuration between the wireless node to which the wireless communication node belongs and the first hop auxiliary node directly connected to the network, and using the network side node configuration
  • the resource is communicated with the first hop auxiliary node; or, according to the resource configuration information sent by the network side node received by the transceiver, the network side node is obtained as the wireless node to which the optimal communication path belongs and directly Communicating the configured resources between the first hop auxiliary nodes of the connection, and using the resources reconfigured by the network side node with the first
  • the hopping auxiliary node performs communication; or, according to the resource configuration information sent by the network side node received by the transceiver, the network side node is the current hopping auxiliary node directly connected to the wireless node in the optimal communication path Communulating the configured resources, and transmitting the data to be transmitted to the first hop auxiliary node by using the resources configured by the network side node,
  • the transceiver is configured to:
  • the first hop auxiliary node sends downlink data from the network side node, where the first hop auxiliary node receives the downlink data sent by the network, according to the locally saved channel to the network and the channel to the wireless node.
  • the mapping relationship determines a wireless node corresponding to the downlink data, and forwards the downlink data to the determined wireless node.
  • the processor is further configured to:
  • Another network side node provided by the embodiment of the present invention includes a transceiver and at least one processor connected to the transceiver, where:
  • the processor is configured to: determine an optimal communication path of the wireless node to the network after determining that any wireless node needs to access the network, wherein the optimal communication path indicates that the wireless node passes at least one secondary node Communicating with the network, and at least one of the at least one secondary node is a wired node directly connected to the network.
  • the processor is configured to specifically:
  • a pre-measurement manner among the nodes located around the wireless node and capable of providing data forwarding services for other nodes, selecting nodes satisfying the set conditions, and determining the location according to the selected path of each node to the network Determining, by the wireless node, at least one auxiliary node included in an optimal communication path of the network, and configuring a correspondence between the wireless node and the selected at least one auxiliary node to the wireless node and each selected auxiliary node; Or determining an optimal communication path of the wireless node to the network according to the obtained information about the wireless node accessing the network. path.
  • the processor determines, according to the obtained information related to the wireless node accessing the network, the optimal communication path of the wireless node to the network, including:
  • the wireless nodes respectively measure signals sent by respective nodes having functions capable of providing data forwarding services for other nodes; or
  • the transceiver selecting, according to the second measurement result reported by the node, the node that has the function of providing the data forwarding service for the other node, is received by the transceiver, and selecting, from each node that reports the second measurement result, satisfying the setting a conditional node, determining, according to the selected path of each node to the network, a secondary node included in an optimal communication path of the wireless node to the network, and notifying the wireless node and each selected auxiliary node
  • the second measurement result is that the node having the function of providing a data forwarding service for other nodes around the wireless node measures the sounding signal sent by the wireless node; or
  • the processor is further configured to:
  • Preconfiguring resources for communication between directly connected nodes in the optimal communication path, and configuring the wireless node and at least one auxiliary node in the optimal communication path, as described in the first manner No further details are provided; or, according to resource usage of the current network, resources that can be used are reconfigured for communication between directly connected nodes in the optimal communication path, and configured to the wireless node by resource configuration information and For the at least one auxiliary node in the optimal communication path, refer to the second mode mentioned above, and details are not described herein; or, according to the resource usage of the current network and the required transmission of each node in the optimal communication path.
  • the amount of data is configured to allocate resources for communication between directly connected nodes in the optimal communication path, and is configured by the resource configuration information to the wireless node and at least one auxiliary node in the optimal communication path, as described above. The third way is not repeated here.
  • the processor is further configured to: when the downlink data needs to be sent to the wireless node, determine, according to the optimal communication path, a first hop auxiliary node directly connected to the wireless node And will The downlink data is sent to the first hop auxiliary node by using the first hop auxiliary node to the network, so that the first hop auxiliary node forwards the downlink data to the wireless node.
  • the processor is further configured to: after the transceiver receives the notification message sent by the first hop assistant node directly connected to the wireless node in the optimal communication path, re-determine The optimal communication path of the wireless node to the network is used, and the notification message is used to notify the network side node that the first hop auxiliary node cannot continue to provide the data forwarding service for the wireless node.
  • the quality of the link with the wireless node is greater than a set quality threshold
  • the return can accommodate the data transmitted by the wireless node
  • the link transmission delay between the wireless node and the wireless node is minimal
  • the link transmission delay between the wireless node and the wireless node is less than a set delay threshold
  • the backhaul link transmission delay is less than the set delay threshold
  • Its backhaul link transmission rate is not less than the wireless interface rate
  • the link transmission rate with the wireless node is the largest; and,
  • the link transmission rate with the wireless node is greater than a set rate threshold.
  • the wireless node acquires an optimal communication path from the wireless network to the network when the network node needs to access the network, where the optimal communication path indicates that the wireless node accesses the network through at least one auxiliary node.
  • At least one of the at least one auxiliary node is a wired node directly connected to the network; and the wireless node communicates with the network by acquiring the optimal communication path, thereby improving data between the wireless node and the network.
  • the quality and performance of the transmission also increases the transmission efficiency of the wireless node.
  • FIG. 1 is a schematic diagram of a communication link between network side nodes in an LTE system provided by the background technology
  • FIG. 2 is a schematic structural diagram of a wireless relay in an LTE system provided by the background technology
  • FIG. 3 is a schematic diagram of a method for determining a communication path according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of a single-hop node communication path according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a multi-hop node communication path according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of another method for determining a communication path according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of a wireless node according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram of a network side node according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of another wireless node according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic diagram of another network side node according to an embodiment of the present invention.
  • the embodiment of the present invention accesses the network and communicates with the network through at least one auxiliary node having a function capable of providing data forwarding services for other nodes, thereby improving the wireless node and the network.
  • the quality and performance of data transmission improves the transmission efficiency of wireless nodes.
  • An embodiment of the present invention provides a method for determining a communication path. As shown in FIG. 3, the method includes the following steps:
  • Step 31 The wireless node acquires an optimal communication path to the network when the network node needs to access the network, where the optimal communication path indicates that the wireless node accesses the network through at least one auxiliary node, and at least one auxiliary node of the at least one auxiliary node A node is a wired node that is directly connected to the network.
  • the wireless node that needs to access the network may be a newly deployed wireless node in the network, or may be an optimal communication that the deployed wireless node in the network needs to re-access to the network and needs to access the wireless node of the network.
  • the path indicates that the wireless node accesses the network through at least one secondary node, i.e., the optimal communication path indicates that the wireless node communicates with a network side node (e.g., a macro station) through at least one secondary node.
  • a network side node e.g., a macro station
  • the auxiliary node involved in the embodiment of the present invention is: at least a node having a function capable of providing a data forwarding service for other nodes and having the function enabled by itself.
  • the auxiliary node may be a wired backhaul connected node (ie, a wired node, such as a wired cell), or may be a wireless backhaul connected node (ie, a wireless node, such as a wireless cell), but the wireless node obtains in step 31.
  • At least one of the at least one auxiliary node involved in the optimal communication path is a wired node directly connected to the network.
  • the at least one auxiliary node included in the optimal communication path acquired by the wireless node that needs to access the network in step 31, for the wired node it is between the network node and the network side node (such as a macro station).
  • the wired transmission protocol is used to transmit data and signaling; if the at least one secondary node includes a wireless node, the wireless node also needs to obtain a communication path between the wireless node and the network side node, and select an optimal transmission path and the network side node to perform Communication, wherein the wireless node can communicate with the network side node by using its own path to the network, or can reselect at least one auxiliary node to access the network.
  • the wireless node can access in three ways.
  • Network one is to deploy a wired backhaul link between the wireless node and the macro station for direct communication (not all sites are suitable for deploying wired backhaul links); second, deploy between wireless nodes and macro stations
  • the wireless backhaul link performs direct communication (in some scenarios, the link quality of the wireless backhaul link is not optimal, such as the link quality is lower than the set quality threshold); and the third is provided by using the embodiment of the present invention.
  • Optimal communication path through at least one secondary node and network A side node (such as a macro station) communicates, wherein the link quality of the optimal communication path is better than the link quality of the wireless backhaul link directly connected to the network by the wireless node.
  • the optimal communication path involved in this step refers to that the wireless node that needs to access the network accesses the network through at least one auxiliary node, and the optimal communication path satisfies at least one of the following conditions: the link quality is optimal, and the link quality is greater than The set quality threshold, the transmission bandwidth is large, the transmission bandwidth is greater than the set bandwidth threshold, the transmission delay is minimum, the transmission delay is less than the set delay threshold, the link transmission rate is the largest, and the link transmission rate is greater than the set rate. Threshold.
  • Step 32 The wireless node that needs to access the network communicates with the network by acquiring the optimal communication path.
  • the wireless node that needs to access the network communicates with the network side node by using the obtained optimal communication path, that is, the wireless node communicates with the network side node through at least one auxiliary node.
  • the at least one auxiliary node forwards data and signaling between the wireless node and the network side node, that is, when the at least one auxiliary node receives the uplink data sent by the wireless node, forwards the uplink data to the network side.
  • the node when the at least one secondary node receives the downlink data sent by the network side node, forwards the downlink data to the wireless node.
  • the wireless node acquires its own optimal communication path to the network when it needs to access the network, where the optimal communication path indicates that the wireless node accesses the network through at least one auxiliary node, and the at least one auxiliary node At least one auxiliary node is a wired node directly connected to the network; and the wireless node communicates with the network through the obtained optimal communication path, thereby improving the quality and performance of data transmission between the wireless node and the network. It also improves the transmission efficiency of the wireless node.
  • step 31 when the wireless node needs to access the network, the wireless node obtains its own optimal communication path to the network, including the following three implementation manners:
  • the wireless node that needs to access the network determines its own communication path to the network, that is, the wireless node determines the auxiliary node included in the communication path of the network to the network.
  • step 31 specifically includes: a wireless node that needs to access the network selects a node from the node that has the function of providing data forwarding service for other nodes, and directly selects a node as the wireless node accessing the network and directly connected to the wireless node.
  • the connected first hop auxiliary node determines its own optimal communication path to the network to access the network through the selected first hop auxiliary node.
  • the optimal communication path determined by the wireless node that needs to access the network to the network includes a single-hop node communication path (that is, the wireless node accesses the network through a secondary node) and a multi-hop node communication path (ie, the The wireless node accesses the network through at least two secondary nodes.
  • the optimal communication path determined by the wireless node is: a wireless node—a secondary node (ie, a first hop secondary node)—a network side node, ie, a single hop node communication path, such that the wireless node can communicate with the network through its selected wired node, wherein the selected first hop
  • the secondary node forwards the data transmitted between the wireless node and the network through its own established wired link to the network, as shown in FIG.
  • the solid line in the middle represents the wired backhaul link, and the dotted line represents the wireless backhaul link.
  • the optimal communication path of the wireless node It is: wireless node - first hop auxiliary node - second hop auxiliary node - ... - network side node, as shown in FIG. 5, the solid line in the figure represents a wired backhaul link, and the broken line represents a wireless backhaul link, thereby
  • the wireless node may communicate with the network by using the first hop auxiliary node selected by itself, the first hop auxiliary node to the established path of the network, or the at least one auxiliary node selected by the first hop auxiliary node to the network. .
  • the second hop auxiliary node is the first hop auxiliary node that has established the path to the network and the first hop.
  • the third hop auxiliary node is a node connected to the second hop auxiliary node in the path to the network that the first hop auxiliary node has established, and so on;
  • the first hop auxiliary node selects a satisfaction from a node having a function capable of providing data forwarding services for other nodes around itself.
  • a conditional node as a second hop auxiliary node that the wireless node accesses the network and is directly connected to the first hop auxiliary node, and the second hop auxiliary node assists the path established by itself to the network, or the second hop assisted
  • the node forwards the data transmitted between the wireless node and the network for at least one auxiliary node selected by the node to the network, and so on, until connecting to the network side node or connecting to a wired node, thereby determining the most wireless node to the network. Excellent communication path.
  • the first hop auxiliary node may also be a macro station.
  • the wireless node that needs to access the network may notify the network side node of the optimal communication path to the network; or the first hop auxiliary node selected by the wireless node may use the wireless node to the network.
  • the superior communication path is notified to the network side node, or the first hop auxiliary node selected by the wireless node notifies the network side node that the wireless node accesses the network through the first hop auxiliary node to the established path of the network.
  • step 31 further includes the following two implementation manners:
  • a wireless node that needs to access the network selects a node that satisfies the setting condition from a node that has a function of providing a data forwarding service for other nodes, and the wireless node accesses the network and is directly connected to the wireless node.
  • the first hop auxiliary node is a node that has a function of providing a data forwarding service for other nodes.
  • the link quality with the wireless node is greater than the set quality threshold
  • the return can accommodate the data transmitted by the wireless node
  • the backhaul link transmission delay is less than the set delay threshold
  • Its backhaul link transmission rate is not less than the wireless interface rate
  • the link transmission delay with the wireless node is minimal
  • the link transmission delay between the wireless node and the wireless node is less than the set delay threshold
  • the link transmission rate with the wireless node is the largest; and,
  • the link transmission rate with the wireless node is greater than the set rate threshold.
  • the wireless node that needs to access the network selects its own first hop auxiliary node from the nodes that have the function of providing data forwarding services for other nodes around the set conditions, and then passes the first hop.
  • the auxiliary node to the network established path, or the first hop auxiliary node communicates with the network for at least one auxiliary node selected by itself to the network.
  • the wireless node that needs to access the network communicates with the network through the selected first hop auxiliary node and the first hop auxiliary node to the established path of the network.
  • the wireless node that needs to access the network selects its own first hop auxiliary node, it notifies the first hop auxiliary node, and correspondingly, the first hop auxiliary node according to the load condition of the established path to the network. Determining whether to use the path established by itself to the network to provide data forwarding service for the wireless node; if not, the first hop auxiliary node selects at least one auxiliary node for itself to the network to establish its own optimal communication path to the network.
  • a wireless node that needs to access the network sends a first request message to a node that has a function of providing a data forwarding service for other nodes, and provides a data forwarding service for other nodes according to at least one of the received ones.
  • the first reply message returned by the functioning node, selecting a node as the first hop auxiliary node that the wireless node accesses the network and directly connected to the wireless node, wherein the first request message is used to request to receive the first A node requesting a message accesses the network, and the first reply message is used to notify whether a node that needs to access the network to send the first reply message can serve as a secondary node of the wireless node accessing the network.
  • the wireless node that needs to access the network sends a first request message to a node that has a function of providing a data forwarding service for other nodes, to request that the node that receives the first request message access the network;
  • the node that receives the first request message determines whether it can serve as a secondary node of the wireless node accessing the network according to its own link status (such as link load, backhual information of the node to the network, etc.), and
  • the first reply message notifies the wireless node whether the node can serve as a secondary node for the wireless node to access the network.
  • the first reply message carries 1-bit indication information to notify the wireless node whether the node can serve as a secondary node of the wireless node accessing the network.
  • the first reply message further carries the backhual information of the node to the network that receives the first request message, so that the wireless node that needs to access the network performs selection.
  • the backhual information includes delay information, data bandwidth information, and wireless hop count information.
  • a network-side node such as an entity acting as an Operation and Maintenance (OAM), a macro station, and a network-side control node (such as a Mobility Management Entity (MME), a Serving Gateway, SGW), packet data network gateway (PDN Gateway, PGW; Packet Data Network, PDN), etc.)) selecting at least one auxiliary node for the wireless node that needs to access the network by pre-measurement, and pre-configuring the auxiliary node configured for the wireless node to the wireless node, that is, the network side node is pre-configured
  • An optimal communication path is configured for the wireless node, and a correspondence between the wireless node and the secondary node is configured for each wireless node and its corresponding secondary node.
  • the step 31 includes: determining, by the wireless node that needs to access the network, the at least one auxiliary node included in the optimal communication path of the network to the network according to the pre-configured correspondence between the wireless node and the auxiliary node, to determine The optimal communication path from itself to the network is to access the network through the at least one secondary node.
  • a wired node directly connected to the network by using a wired link is used as the first hop auxiliary node directly connected to the wireless node (that is, a secondary node is configured).
  • the optimal communication path configured by the network side node for the wireless node is a single hop node communication path; if the network side node configures at least two auxiliary nodes for the wireless node that needs to access the network, the network side node is the wireless
  • the optimal communication path configured by the node is a multi-hop node communication path.
  • Manner 3 The network side node determines an optimal communication path of the wireless node to the network according to the obtained information about the access node of the wireless node that needs to access the network, and determines an optimal communication path of the wireless node to the network ( That is, the wireless node reaches the secondary node required by the network, and notifies the wireless node and its secondary node.
  • the step 31 includes: the wireless node that needs to access the network receives the at least one auxiliary node that is selected by the network side node and is selected by the network side node to determine the optimal communication path of the network to the network. At least one secondary node accesses the network.
  • the first hop auxiliary node directly connected to the wireless node ie, selects a secondary node
  • the wireless node determines that its optimal communication path to the network is a single-hop node communication path; if the network-side node selects at least two auxiliary nodes for the wireless node that needs to access the network, the wireless node determines its own optimal network to the network.
  • the communication path is a multi-hop node communication path.
  • the method further includes the following three ways:
  • the mode 31, the network side node configures at least one auxiliary node for the wireless node according to the first measurement result reported by the wireless node that needs to access the network.
  • step 31 the method further includes:
  • the wireless node that needs to access the network measures the signal sent by the node, and reports the measured first measurement result to the network side node;
  • the wireless node accessing the network needs to measure the signal sent by the node, and the first measurement of the measured first measurement result satisfies the set threshold. The result is reported to the network side node.
  • the measurement performed by the wireless node that needs to access the network may be based on the obtained common signal (such as the common pilot signal) sent by each node; since the coverage of the wireless node is relatively small, there is a possibility that the public signal cannot be Covering the wireless node, the measurement performed by the wireless node may also be based on the obtained dedicated signal sent by each node (such as the dedicated signal configured by the path optimization of the wireless node).
  • the measurement performed by the wireless node may also be based on the obtained dedicated signal sent by each node (such as the dedicated signal configured by the path optimization of the wireless node).
  • the network side node receives the first measurement result reported by the wireless node that needs to access the network, and selects, according to the received first measurement result, each node that is located around the wireless node and can provide data forwarding service for other nodes.
  • a node that satisfies the set condition determines, according to the selected path of each node to the network, at least one auxiliary node included in the optimal communication path of the wireless node to the network, and notifies the wireless node and the selected auxiliary node.
  • the network side node configures at least one auxiliary node for the wireless node according to the second measurement result reported by the node around the wireless node that needs to access the network.
  • step 31 the method further includes:
  • a wireless node that needs to access the network sends a sounding signal to a node around itself, wherein the node around the wireless node receives the sounding signal sent by the wireless node, measures the sounding signal, and measures the second measurement. The result is reported to the network side node.
  • the network side node receives the second measurement result reported by the node around the wireless node that needs to access the network and has the function of providing the data forwarding service for the other node, and is located around the wireless node according to the received second measurement result. And among the nodes capable of providing data forwarding services for other nodes, selecting a node that satisfies the setting condition, and determining at least one auxiliary included in the optimal communication path of the wireless node to the network according to the selected path of each node to the network. Node, and notify the wireless node and each selected secondary node.
  • the mode 33 after receiving the second request message sent by the node around the wireless node that needs to access the network and having the function of providing the data forwarding service for other nodes, determining, by the network node, the optimal communication to the network for the wireless node path.
  • step 31 the method includes:
  • a wireless node that needs to access the network sends a first request message to a node having a function of providing a data forwarding service for other nodes, wherein the first request message is used to request a node that receives the first request message
  • the second request message is sent to the network side node, and the second request message is used to notify the network side, when the node that receives the first request message determines that it can serve as the auxiliary node of the wireless node accessing the network.
  • the node that the node sends the second request message can serve as a secondary node for the wireless node to access the network.
  • the second request message further carries the backhual information of the node that receives the first request message to the network, so that the network side node performs selection.
  • the backhual information includes delay information, data bandwidth information, and wireless hop count information.
  • a wireless node that needs to access the network determines a node around itself that has the capability to provide data forwarding services for other nodes according to the following manner:
  • the wireless node After receiving the message carrying the indication information sent by any node, the wireless node determines that the node that sends the indication information has a function of providing a data forwarding service for other nodes, and the indication information is used to indicate that the data is provided for other nodes.
  • the function of forwarding the service or,
  • the wireless node sends a first message to each node around itself, and when receiving the second message returned by any node, determines that the node that sends the second message has a function of providing data forwarding services for other nodes, where
  • the first message is used to request that a node having a function capable of providing a data forwarding service for other nodes among the surrounding nodes returns a second message.
  • step 32 the wireless node that needs to access the network communicates with the network by using the obtained optimal communication path, including the following four modes:
  • Method 1 The wireless node that needs to access the network obtains the communication configuration between the wireless node and the first hop auxiliary node directly connected to the wireless node in the optimal communication path of the network side node from the information pre-configured by the network side node. Resources and communicate with the first hop secondary node using resources configured by the network side node.
  • the network side node allocates resources for the optimal communication path of the wireless node through static configuration, and considers the communication between any two directly connected nodes in the optimal communication path of the wireless node during planning.
  • the resources used are configured and assigned to each node in the optimal communication path, such as to each node through the OAM system, and then the two directly connected nodes negotiate to use the configured resources.
  • Manner 2 The wireless node that needs to access the network receives the resource configuration information sent by the network side node, so as to obtain the communication configuration between the wireless node and the first hop auxiliary node directly connected to the wireless node in the optimal communication path of the network side node. Resources and communicate with the first hop secondary node using resources reconfigured by the network side node.
  • the network side node configures resources for the optimal communication path of the wireless node by using a semi-static configuration; that is, the network side node may be the wireless between the directly connected nodes in the optimal communication path according to the resource usage of the current network.
  • the transmission allocates semi-static resources, which can be reconfigured according to the size of the traffic and can be completely deleted when there is no transmission. After the resources are semi-statically configured to each node in the optimal communication path, the specific use of the resources requires negotiation between the nodes.
  • the wireless node that needs to access the network reports the amount of data that it needs to transmit to the network side node; the wireless node receives the resource configuration information sent by the network side node, and obtains the wireless network in the optimal communication path of the network side node.
  • the first hop auxiliary node directly connected to the node and the resource of the current communication configuration, and the resource configured by the network side node is used to send the data to be transmitted to the first hop auxiliary node.
  • the network side node is dynamically configured as a configuration resource in the optimal communication path of the wireless node; that is, the network side node can be directly connected between the nodes in the optimal communication path according to the resource usage of the current network.
  • the wireless transmission allocates resources in real time, and the allocation of the resources is calculated according to the traffic volume to be transmitted by each node and the complicated scheduling.
  • the method is performed, and the resource scheduling result is sent to each node in the optimal communication path by means of dynamic signaling, and the transmitting end of the directly connected node transmits on the scheduling resource, and the receiving end is on the scheduling resource. Received to complete the transfer process.
  • Manner 4 The wireless node that needs to access the network negotiates with the first hop auxiliary node that is directly connected to itself in its optimal communication path to determine the resources used when communicating with the first hop auxiliary node.
  • a wireless node that needs to access the network acquires a resource that can be used by itself and is in an idle state, and notifies the acquired resource to the first hop auxiliary node; the wireless node receives the first hop auxiliary node and sends the a resource that the first hop auxiliary node can use and is in an idle state; and the wireless node communicates with the first hop secondary node using resources that both parties can use and are in an idle state.
  • the first hop auxiliary node specifically allocates a part of the resources in the resources that can be used by itself, as the resources used when communicating with the wireless node, or the wireless nodes that need to access the network are specifically divided among the resources that can be used by themselves.
  • a part of the resource as a resource used when communicating with the first hop auxiliary node, or a wireless node that needs to access the network and the first hop auxiliary node perform radio sensing, and will satisfy both the wireless node and the first hop auxiliary node.
  • a resource that can be used within the reachable airspace as a resource used for communication between the two.
  • the first hop auxiliary node if the first hop auxiliary node communicates with the network by using the path established by itself to the network, the first hop auxiliary node can use the network in each path of the established path of the network.
  • the side nodes communicate for the configured resources of the path, thereby saving resource overhead.
  • step 32 specifically includes:
  • the wireless node that needs to access the network needs to send the uplink data sent to the network side node to the first hop auxiliary node that is directly connected to itself in the optimal communication path of the network, and the first hop auxiliary node is saved according to the local a mapping relationship between the channel of the network and the channel of the network to the wireless node, and transmitting the uplink data to the corresponding network side node through the channel of the network to the network;
  • the wireless node that needs to access the network receives the downlink data from the network side node that is sent by the first hop auxiliary node that is directly connected to the wireless node in the optimal communication path of the network, and the first hop auxiliary node receives the downlink data.
  • the wireless node corresponding to the downlink data is determined according to the mapping relationship between the locally saved channel to the network and the channel of the network to the wireless node, and the downlink data is forwarded to the determined wireless node. .
  • the addressing mode of the wireless node that needs to access the network adopts the channel proxy mode.
  • the idea of the mode is: the first hop auxiliary node is the user plane of the wireless node (for example, S1-U, X2-U) and The channel of the control plane (for example, S1-MME, X2-C) is proxyed, that is, the first hop auxiliary node maintains the mapping relationship between the two channels, one segment is the channel of the first hop auxiliary node to the network side node, and the other segment is the first A hop auxiliary node to a channel of a wireless node that needs to access the network, and the first hop auxiliary node manages and stores the above mapping relationship.
  • the first hop auxiliary node maps the downlink data to the corresponding channel of the wireless node according to the foregoing mapping relationship, and then sends the downlink data to the wireless node.
  • the network side node does not know the mapping relationship between the first hop auxiliary node and the wireless node that needs to access the network.
  • the method further includes:
  • Disconnecting the first hop auxiliary node when the wireless node that needs to access the network determines that the link quality between the first hop auxiliary node directly connected to itself in the optimal communication path is lower than a set threshold And re-select the new optimal communication path to access the network; or,
  • the wireless node that needs to access the network disconnects the connection with the first hop auxiliary node and reselects the new one.
  • the optimal communication path accesses the network, and the notification message is used to notify the wireless node that the first hop auxiliary node cannot continue to provide the data forwarding service for the wireless node.
  • the first hop auxiliary node if the first hop auxiliary node that is directly connected to the wireless node in the optimal communication path of the wireless node that needs to access the network has a problem of excessive load, the first hop auxiliary node sends the The wireless node or the network side node sends a notification message to notify the wireless node or the network side node that the first hop auxiliary node cannot continue to provide the data forwarding service for the wireless node, so that the wireless node or the network side node initiates the wireless node.
  • the reconstruction process of the optimal communication path if the first hop auxiliary node that is directly connected to the wireless node in the optimal communication path of the wireless node that needs to access the network has a problem of excessive load, the first hop auxiliary node sends the The wireless node or the network side node sends a notification message to notify the wireless node or the network side node that the first hop auxiliary node cannot continue to provide the data forwarding service for the wireless node, so that the wireless node or the network side node
  • an embodiment of the present invention further provides a method for determining a communication path.
  • the method includes:
  • Step 61 The network side node determines that any wireless node needs to access the network.
  • the wireless node that needs to access the network may be a newly deployed wireless node in the network, or the deployed wireless node in the network needs to re-access the network.
  • the optimal communication path of the wireless node to the network is determined according to step 62.
  • Step 62 The network side node determines an optimal communication path of the wireless node to the network, where the optimal communication path indicates that the wireless node communicates with the network through at least one auxiliary node, and at least one auxiliary of the at least one auxiliary node A node is a wired node that is directly connected to the network.
  • the auxiliary node involved in the embodiment of the present invention is: at least a node having a function capable of providing a data forwarding service for other nodes and having the function enabled by itself.
  • the auxiliary node may be a wired backhaul connected node (ie, a wired node, such as a wired cell), or may be a wireless backhaul connected node (ie, a wireless node, such as a wireless cell), but the network side node determines in step 62. At least one of the at least one auxiliary node involved in the optimal communication path is straight A wired node connected to the network.
  • the network side node determines an optimal communication path of the wireless node to the network, where the optimal communication path indicates that the wireless node passes at least one auxiliary node and The network communicates, and at least one of the at least one auxiliary node is a wired node directly connected to the network, thereby improving the quality and performance of data transmission between the wireless node and the network, and improving the transmission efficiency of the wireless node.
  • the network side node in the embodiment of the present invention may be an entity that functions as an OAM, a macro station, or a network side control node, such as an MME, an SGW, a PGW, or the like.
  • the network side node determines an optimal communication path of the wireless node that needs to access the network to the network, and includes the following two methods:
  • the network side node adopts a pre-measurement manner, and configures at least one auxiliary node for the wireless node that needs to access the network. For details, refer to the foregoing mode 2.
  • the step 61 specifically includes: the network side node adopts a pre-measurement manner, and selects a node that satisfies the set condition from among nodes that are located around the wireless node that needs to access the network and can provide data forwarding services for other nodes. And determining, according to the selected path of each node to the network, at least one auxiliary node included in the optimal communication path of the wireless node to the network, and configuring the correspondence between the wireless node and the selected at least one auxiliary node respectively Give the wireless node and each selected secondary node.
  • a wired node directly connected to the network by using a wired link is used as the first hop auxiliary node directly connected to the wireless node (that is, a secondary node is configured).
  • the optimal communication path configured by the network side node for the wireless node is a single hop node communication path; if the network side node configures at least two auxiliary nodes for the wireless node that needs to access the network, the network side node is the wireless
  • the optimal communication path configured by the node is a multi-hop node communication path.
  • a network-side node can search for a wired backhaul node (such as a small cell) around a wireless node that needs to access the network, and optimize the link quality with the wireless node and its wired backhaul part.
  • a node capable of accommodating data transmitted by the wireless node is selected as a secondary node of the wireless node, and the correspondence relationship between the wireless node and the secondary node selected by the network side node is configured for both.
  • the network side node selects a suitable auxiliary node for the wireless node that needs to access the network by means of pre-measurement, thereby establishing a communication path between the wireless node-the auxiliary node and the network side node, thereby transmitting efficiency and delay, etc.
  • the performance of the aspect is better than the direct wireless path between the wireless node and the network side node, and the corresponding relationship between the wireless node and the network side node for the selected auxiliary node is notified to the two in a pre-configured manner, so that The wireless node and the network side node select the auxiliary node for data and signaling interaction in the subsequent work.
  • the network side node determines an optimal communication path of the wireless node to the network according to the obtained information about the wireless node accessing the network that needs to access the network.
  • the method further includes the following three ways:
  • the network side node configures at least one auxiliary node for the wireless node according to the first measurement result reported by the wireless node that needs to access the network. For details, refer to the foregoing mode 31.
  • the step 61 includes: the network side node receives the first measurement result reported by the wireless node that needs to access the network, and according to the received first measurement result, provides data forwarding from other nodes located around the wireless node.
  • the node that meets the set condition is selected, and the auxiliary node included in the optimal communication path of the wireless node to the network is determined according to the selected path of each node to the network, and notified to the wireless node and Each of the selected auxiliary nodes, wherein the first measurement result is that the wireless nodes that need to access the network respectively measure signals sent by each node having a function capable of providing data forwarding services for other nodes.
  • the network side node selects a wired node that is directly connected to the network by using a wired link for the wireless node that needs to access the network, the first hop auxiliary node directly connected to the wireless node (ie, selects a secondary node)
  • the optimal communication path of the wireless node to the network is a single-hop node communication path; if the network side node selects at least two auxiliary nodes for the wireless node that needs to access the network, the optimal communication path of the wireless node to the network A multi-hop node communication path.
  • the mode B2 the network side node configures at least one auxiliary node for the wireless node according to the second measurement result reported by the at least one node around the wireless node that needs to access the network. For details, refer to the foregoing mode 32.
  • the step 61 specifically includes: receiving, by the network side node, the second measurement result reported by the node that has the function of providing the data forwarding service for the other node, and the second measurement according to the received second measurement.
  • the node that satisfies the setting condition is selected, and the auxiliary node included in the optimal communication path of the wireless node to the network is determined according to the selected path of each node to the network, and Notifying the wireless node and the selected auxiliary nodes, wherein the second measurement result is that the node having the function of providing data forwarding service for other nodes around the wireless node that needs to access the network performs the detection signal sent by the wireless node. Measured.
  • the network side node selects a wired node that is directly connected to the network by using a wired link for the wireless node that needs to access the network
  • the first hop auxiliary node directly connected to the wireless node ie, selects a secondary node
  • the optimal communication path of the wireless node to the network is a single-hop node communication path; if the network side node selects at least two auxiliary nodes for the wireless node, the optimal communication path of the wireless node to the network is a multi-hop node. Communication path.
  • the network side node determines the optimal network to the wireless node. For the communication path, refer to the above mode 33.
  • step 61 specifically includes: the network side node receiving, by the wireless node that needs to access the network, at least one second request message that is sent by the node that can provide the function of the data forwarding service for the other node, from sending the second request message.
  • selecting a node that satisfies the setting condition determining, according to the selected path of each node to the network, the auxiliary node included in the optimal communication path of the wireless node to the network, and notifying the wireless node and the selected Each And a secondary node, wherein the second request message is used to notify the network side node that the node that sends the second request message can serve as a secondary node of the wireless node accessing the network.
  • the network side node determines that the optimal communication path of the wireless node to the network includes: the network side node needs to receive The wireless node that accesses the network notifies the optimal communication path determined by the wireless node to the network to determine the optimal communication path of the wireless node to the network; or the network side node selects the wireless node that needs to access the network to select The first hop auxiliary node notifies the optimal communication path of the wireless node to the network to determine an optimal communication path of the wireless node to the network; or the network side node receives the first selected by the wireless node that needs to access the network The wireless node notified by the hopping assistant accesses the network through the first hop secondary node to the established path of the network to determine an optimal communication path of the wireless node to the network.
  • the setting conditions involved in the embodiments of the present invention include at least one of the following conditions:
  • the link quality with the wireless node is greater than the set quality threshold
  • the return can accommodate the data transmitted by the wireless node
  • the backhaul link transmission delay is less than the set delay threshold
  • Its backhaul link transmission rate is not less than the wireless interface rate
  • the link transmission delay with the wireless node is minimal
  • the link transmission delay between the wireless node and the wireless node is less than the set delay threshold
  • the link transmission rate with the wireless node is the largest; and,
  • the link transmission rate with the wireless node is greater than the set rate threshold.
  • the method further includes: configuring, by the network side node, a resource for communication between the directly connected nodes in the optimal communication path of the wireless node that needs to access the network, specifically including the following three Ways:
  • the network side node allocates resources in advance for communication between directly connected nodes in the optimal communication path of the wireless node that needs to access the network, and configures at least one of the wireless node and the optimal communication path.
  • the auxiliary node see the above method one.
  • the network side node reconfigures the available resources for the communication between the directly connected nodes in the optimal communication path of the wireless node that needs to access the network according to the resource usage of the current network, and passes the resource configuration information.
  • the wireless node and at least one auxiliary node in the optimal communication path refer to the foregoing manner 2.
  • the third mode the network side node is the node directly connected in the optimal communication path according to the resource usage of the current network and the amount of data that each node needs to transmit in the optimal communication path of the wireless node that needs to access the network.
  • the communication configuration resource is configured to the wireless node and the at least one auxiliary node in the optimal communication path by using the resource configuration information. For details, refer to the third manner.
  • the directly connected node in the optimal communication path is the first directly connected to the wireless node that needs to access the network office.
  • a hopping auxiliary node if the optimal communication path is a multi-hop node communication path, the directly connected node in the optimal communication path is a first hop auxiliary node directly connected to the wireless node that needs to access the network, and the first hop assisting The second hop auxiliary node to which the node is directly connected, and so on.
  • the network side node A new resource may be configured for communication between the first hop auxiliary node and each directly connected node in the established path of the network, or may be indicated between the first hop auxiliary node and each directly connected node in the established path of the network.
  • the existing resources of the path are used for communication.
  • the resource is statically configured for the optimal communication path in the first manner, and the optimal is obtained by the second method or the third method.
  • the communication path reconfigures the resource.
  • the method further includes:
  • the network side node needs to send downlink data to the wireless node that needs to access the network, according to the optimal communication path of the wireless node, determine the first hop auxiliary node directly connected to the wireless node, and pass the downlink data through the first A first-hop secondary node is sent to the first hop auxiliary node, so that the first hop auxiliary node forwards the downlink data to the corresponding wireless node.
  • the addressing mode of the wireless node that needs to access the network adopts a channel proxy mode, and when the network side node establishes a connection with the wireless node that needs to access the network, the optimal communication path of the wireless node is simultaneously stored, thereby determining The data of the wireless node needs to be transited through the secondary node.
  • the downlink data sent by the network side node to the wireless node is first sent to the auxiliary node directly connected to the network side node in the optimal communication path of the wireless node, and is forwarded to the auxiliary node in the optimal communication path.
  • Wireless node And for the uplink data of the wireless node, the wireless node first sends the first hop auxiliary node directly connected to the wireless node in the optimal communication path, and the first hop auxiliary node forwards to the network side through the optimal communication path. node.
  • the method further includes:
  • the network side node After receiving the notification message sent by the first hop assistant node directly connected to the wireless node in the optimal communication path of the wireless node that needs to access the network, the network side node re-determines the optimal communication path of the wireless node to the network.
  • the notification message is used to notify the network side node that the first hop auxiliary node cannot continue to provide the data forwarding service for the wireless node.
  • the above method processing flow can be implemented by a software program, which can be stored in a storage medium, and when the stored software program is called, the above method steps are performed.
  • an embodiment of the present invention further provides a wireless node.
  • the wireless node includes:
  • the path obtaining module 71 is configured to acquire an optimal communication path of the wireless node to the network when the wireless node to which the wireless node belongs to access the network;
  • the communication module 72 is configured to communicate with the network by using the optimal communication path acquired by the path obtaining module 71.
  • the optimal communication path indicates that the wireless node accesses the network through at least one auxiliary node, and at least one of the at least one auxiliary node is a wired node directly connected to the network.
  • the wireless node provided by the embodiment of the present invention may be a newly deployed wireless node in the network, or the deployed wireless node in the network needs to re-access the network, and the optimal communication path obtained by the wireless node indicates that the wireless node passes at least A secondary node accesses the network, i.e., the optimal communication path indicates that the wireless node is in communication with a network side node (e.g., a macro station) through at least one secondary node.
  • a network side node e.g., a macro station
  • the auxiliary node involved in the embodiment of the present invention is: at least a node having a function capable of providing a data forwarding service for other nodes and having the function enabled by itself.
  • the auxiliary node may be a wired backhaul connected node (ie, a wired node, such as a wired cell), or may be a wireless backhaul connected node (ie, a wireless node, such as a wireless cell), but the wireless node obtains an optimal one.
  • At least one of the at least one auxiliary node involved in the communication path is a wired node directly connected to the network.
  • the wired transmission protocol is used to transmit data between the network node and the network side node (such as the macro station).
  • the wireless node included in the at least one auxiliary node also needs to obtain a communication path between the wireless node and the network side node, and select an optimal transmission path and a network side node.
  • the communication is performed, wherein the wireless node included in the at least one auxiliary node may communicate with the network side node by using a path established by itself to the network, or may reselect at least one auxiliary node to access the network.
  • the path obtaining module 71 is specifically configured to:
  • Determining, according to a pre-configured correspondence between the wireless node and the auxiliary node, determining at least one auxiliary node included in the optimal communication path of the wireless node to which the network belongs to determine the optimal communication path of the wireless node to the network is The access to the network is performed by the at least one auxiliary node.
  • the network side node Receiving, by the network side node notified by the network side node, at least one auxiliary node selected by the wireless node to which the wireless node belongs, to determine that the optimal communication path of the wireless node to the network is to access the network by using the at least one auxiliary node, where the network side
  • the node determines the optimal communication path of the wireless node to the network according to the obtained information about the access node of the wireless node. For details, refer to the foregoing method 3, which is not described here.
  • the first hop auxiliary node in the optimal communication path determined by any of the above methods may also be a macro station.
  • the path obtaining module 71 selects one node as a node that has a function of providing a data forwarding service for other nodes around the wireless node to which it belongs, as the first node that the wireless node accesses the network and is directly connected to the wireless node.
  • Jump secondary nodes including:
  • a node that has a function of providing a data forwarding service for other nodes around a wireless node to which it belongs selects a node that satisfies the setting condition as a first hop auxiliary node that the wireless node accesses the network and is directly connected to the wireless node, For details, refer to the above mode 11, which will not be described here; or,
  • the optimal communication path may be notified to the network side node, or may be selected by the path obtaining module 71.
  • the hopping assistant node notifies the network side node of the optimal communication path, or the first hopping assistant node notifies the network side node that the wireless node accesses the network through the first hopping auxiliary node to the established path of the network.
  • the path obtaining module 71 is further configured to:
  • the node Before receiving the at least one auxiliary node selected by the network side node notified by the network side node for the wireless node to which the network node belongs, the node sends a signal to the node that has the function of providing data forwarding service for other nodes. And reporting the measured first measurement result to the network side node, to request the network side node to determine an optimal communication path for the wireless node; or
  • the node Before receiving the at least one auxiliary node selected by the network side node notified by the network side node for the wireless node to which the network node belongs, the node sends a signal to the node that has the function of providing data forwarding service for other nodes. And reporting, by the measured first measurement result, the first measurement result that meets the set threshold to the network side node, to request the network side node to determine an optimal communication path for the wireless node.
  • the path acquisition module 71 determines a node having a function of providing a data forwarding service for other nodes in accordance with the following manner:
  • the indication information After receiving the message carrying the indication information sent by any node, determining that the node that sends the indication information has A function capable of providing a data forwarding service to other nodes, the indication information being used to indicate that there is a function capable of providing a data forwarding service for other nodes; or
  • the first message is used to request that a node having a function capable of providing a data forwarding service for other nodes among the surrounding nodes returns a second message.
  • path obtaining module 71 is further configured to:
  • the neighboring node Before receiving the at least one auxiliary node selected by the network side node notified by the network side node, the neighboring node sends a sounding signal to the surrounding node, where the node around the wireless node receives the detecting signal And measuring the detection signal, and reporting the second measurement result obtained by the measurement or the second measurement result of the second measurement result that meets the set threshold to the network side node, to request the network side node to be the wireless
  • the node determines the optimal communication path; or,
  • the node having the function of providing the data forwarding service for the other node is sent a first request message, where The first request message is used to request that a node that receives the first request message accesses the network, and the node that receives the first request message determines that it can serve as a secondary node of the wireless node accessing the network.
  • the communication module 72 is specifically configured to:
  • the resource is in communication with the first hop auxiliary node.
  • Receiving resource configuration information sent by the network side node to obtain a resource configured by the network side node for communication between the wireless node to which the wireless communication node belongs and the first hop auxiliary node directly connected to the network, and using the network side node
  • the reconfigured resource communicates with the first hop auxiliary node.
  • the resources of the current communication configuration of the auxiliary node, and the data configured by the network side node are used to send the data to be transmitted to the first hop auxiliary node.
  • the communication module 72 is specifically configured to:
  • the first hop auxiliary node Receiving, by the first hop auxiliary node that is directly connected to the wireless node to which the wireless communication node belongs, the downlink data from the network side node, where the first hop auxiliary node receives the downlink data sent by the network. And determining, according to a mapping relationship between the locally saved channel to the network and the channel of the network to the wireless node, the wireless node corresponding to the downlink data, and forwarding the downlink data to the determined wireless node.
  • the path obtaining module 72 is further configured to:
  • the connection to the first hop auxiliary node is disconnected, and the new optimal communication is reselected.
  • the path accesses the network, and the notification message is used to notify the wireless node that the first hop auxiliary node cannot continue to provide data forwarding services for the wireless node.
  • the embodiment of the present invention further provides a network side node.
  • the network side node includes:
  • the first processing module 81 is configured to determine that any wireless node needs to access the network
  • a second processing module 82 configured to determine an optimal communication path of the wireless node to a network, where the optimal communication path indicates that the wireless node communicates with a network through at least one auxiliary node, and the at least one auxiliary node At least one of the secondary nodes is a wired node that is directly connected to the network.
  • the network side node in the embodiment of the present invention may be an entity that functions as an OAM, a macro station, or a network side control node, such as an MME, an SGW, a PGW, or the like.
  • the second processing module 82 is specifically configured to:
  • the second processing module 82 determines the optimal communication path of the wireless node to the network according to the obtained information about the wireless node accessing the network, including:
  • the wireless node separately measures the signals sent by the nodes that are capable of providing the data forwarding service for other nodes, and the method is not described here; or
  • the second measurement result is that the node having the function of providing a data forwarding service for other nodes around the wireless node measures the sounding signal sent by the wireless node, as described in the above manner, B2, Again; or,
  • the foregoing mode B3 For details, refer to the foregoing mode B3, and details are not described herein again.
  • the second processing module 82 determines that the optimal communication path of the wireless node to the network includes: receiving needs to be received The wireless communication node notified to the wireless node of the network determines its own optimal communication path to the network to determine the optimal communication path of the wireless node to the network; or receives the first hop selected by the wireless node that needs to access the network The optimal communication path of the wireless node to the network notified by the auxiliary node to determine an optimal communication path of the wireless node to the network; or receiving the wireless notification by the first hop auxiliary node selected by the wireless node that needs to access the network The node accesses the network through the first hop auxiliary node to the established path of the network to determine an optimal communication path of the wireless node to the network.
  • the network side node further includes a third processing module 83, configured to:
  • the resource is statically configured for the optimal communication path in the first manner, and the optimal is obtained by the second method or the third method.
  • the communication path reconfigures the resource.
  • the network side node further includes a fourth processing module 84, configured to:
  • the wireless node When the downlink data needs to be sent to the wireless node, determining, according to the optimal communication path, a first hop auxiliary node directly connected to the wireless node, and passing the downlink data to the first hop auxiliary node A channel to the network is sent to the first hop auxiliary node, so that the first hop auxiliary node forwards the downlink data to the wireless node.
  • the second processing module 82 is further configured to:
  • the notification message After receiving the notification message sent by the first hop assistant node directly connected to the wireless node in the optimal communication path, re-determining the optimal communication path of the wireless node to the network, the notification message is used for notification
  • the network side node, the first hop auxiliary node, cannot continue to provide the data forwarding service for the wireless node.
  • the wireless node includes a transceiver 91 and at least one processor 92 coupled to the transceiver 91, wherein:
  • the processor 92 is configured to acquire an optimal communication path of the wireless node to the network when the wireless node to which the wireless node belongs needs to access the network; and communicate with the network by acquiring the optimal communication path;
  • the optimal communication path indicates that the wireless node accesses the network through at least one auxiliary node, and at least one of the at least one auxiliary node is a wired node directly connected to the network.
  • the wired transmission protocol is used to transmit data between the wired node and the network side node (such as the macro station).
  • the wireless node included in the at least one auxiliary node also needs to obtain a communication path between the wireless node and the network side node, and select an optimal transmission path and the network side node to perform The communication, wherein the wireless node included in the at least one auxiliary node may communicate with the network side node by using a path established by itself to the network, or may reselect at least one auxiliary node to access the network.
  • processor 92 is configured to:
  • one node is selected as a first hop auxiliary node that the wireless node accesses the network and is directly connected to the wireless node to determine the wireless
  • the optimal communication path from the node to the network is to access the network through the first hop auxiliary node.
  • Determining determining, according to a pre-configured correspondence between the wireless node and the auxiliary node, determining at least one auxiliary node included in the optimal communication path of the wireless node to which the network belongs, to determine that the optimal communication path of the wireless node to the network is
  • the at least one auxiliary node accesses the network.
  • the network side node determines the optimal communication path of the wireless node to the network according to the obtained information about the access node of the wireless node.
  • the first hop auxiliary node in the optimal communication path determined by any of the above methods may also be a macro station.
  • the processor 92 selects, from a node having a function of providing a data forwarding service for other nodes around the wireless node to which it belongs, as the first hop that the wireless node accesses the network and is directly connected to the wireless node.
  • Secondary nodes including:
  • a node that has a function of providing a data forwarding service for other nodes around a wireless node to which it belongs selects a node that satisfies the setting condition as a first hop auxiliary node that the wireless node accesses the network and is directly connected to the wireless node, For details, refer to the above mode 11, which will not be described here; or,
  • the trigger transceiver 91 transmits a first request message to a node having a function of providing a data forwarding service for other nodes around the wireless node to which it belongs, and at least one of the surrounding received by the transceiver 91 has data capable of providing data for other nodes.
  • a first reply message returned by the node of the function of the forwarding service selecting a node as the first hop auxiliary node that the wireless node accesses the network and directly connected to the wireless node, wherein the first request message is used to request to receive The node to the first request message accesses the network, and the first reply message is used to notify the node that the wireless node sends the first reply message to be a secondary node of the wireless node accessing the network, as described above. Mode 12, no more details here.
  • the transceiver 92 may be triggered to notify the network side node of the optimal communication path, or may be selected by the processor 92.
  • the first hop auxiliary node notifies the network side node of the optimal communication path, or the first hop auxiliary node notifies the network side node that the wireless node accesses the network through the first hop auxiliary node to the established path of the network.
  • processor 92 is also configured to:
  • the transceiver 91 Before the transceiver 91 receives the at least one auxiliary node selected by the network side node notified by the network side node for the wireless node to which the network node belongs, the node having the function of providing the data forwarding service for other nodes is issued to the node. The signal is measured, and the triggering transceiver 91 reports the measured first measurement result to the network side node to request the network side node to determine an optimal communication path for the wireless node; or
  • the transceiver 91 Before the transceiver 91 receives the at least one auxiliary node selected by the network side node notified by the network side node for the wireless node to which the network node belongs, the node having the function of providing the data forwarding service for other nodes is issued to the node. The signal is measured, and the triggering transceiver 91 reports the first measurement result that meets the set threshold in the measured first measurement result to the network side node, to request the network side node to determine the optimal communication path for the wireless node.
  • processor 92 determines nodes having functionality to provide data forwarding services to other nodes in accordance with the following manner:
  • the transceiver 91 After the transceiver 91 receives the message carrying the indication information sent by any node, it is determined that the node that sends the indication information has a function of providing a data forwarding service for other nodes, and the indication information is used to indicate that the Other nodes provide the function of data forwarding service; or,
  • the transceiver 91 When the transceiver 91 receives the second message returned by any node, it is determined that the node transmitting the second message has a function of being able to provide data forwarding services for other nodes, wherein the transceiver 91 sends to the surrounding nodes.
  • the first message is used to request that a node having a function capable of providing a data forwarding service for other nodes among the surrounding nodes returns a second message.
  • transceiver 91 is also configured to:
  • the neighboring node Before receiving the at least one auxiliary node selected by the network side node notified by the network side node, the neighboring node sends a sounding signal to the surrounding node, where the node around the wireless node receives the detecting signal And measuring the detection signal, and reporting the second measurement result obtained by the measurement or the second measurement result of the second measurement result that meets the set threshold to the network side node, to request the network side node to be the wireless
  • the node determines the optimal communication path; or,
  • the node having the function of providing the data forwarding service for the other node is sent a first request message, where The first request message is used to request that a node that receives the first request message accesses the network, and the node that receives the first request message determines that it can serve as a secondary node of the wireless node accessing the network.
  • the processor 92 is configured to:
  • the resource is in communication with the first hop auxiliary node.
  • the network side node is the resource of the current communication configuration of the first hop auxiliary node directly connected to the wireless node in the optimal communication path, and uses the resource
  • the resource configured by the network side node sends the data to be transmitted to the first hop auxiliary node, where the transceiver 91 reports the amount of data to be transmitted by the wireless node to which the network node belongs, as described in the foregoing manner 3, I will not repeat them here; or,
  • the transceiver 91 is configured to:
  • the first hop auxiliary node Receiving, by the first hop auxiliary node that is directly connected to the wireless node to which the wireless communication node belongs, the downlink data from the network side node, where the first hop auxiliary node receives the downlink data sent by the network. And determining, according to a mapping relationship between the locally saved channel to the network and the channel of the network to the wireless node, the wireless node corresponding to the downlink data, and forwarding the downlink data to the determined wireless node.
  • processor 92 is also configured to:
  • the transceiver 91 After the transceiver 91 receives the notification message sent by the first hop auxiliary node directly connected to the wireless node to which the wireless communication node belongs, the transceiver 91 disconnects the first hop auxiliary node and reselects the new one.
  • the optimal communication path accesses the network, and the notification message is used to notify the wireless node that the first hop auxiliary node cannot continue to provide data forwarding services for the wireless node.
  • the network side node includes a transceiver 101 and at least one connected to the transceiver 101.
  • Processors 102 wherein:
  • the processor 102 is configured to determine an optimal communication path of the wireless node to the network after determining that any wireless node needs to access the network, wherein the optimal communication path indicates that the wireless node passes at least one auxiliary
  • the node communicates with the network, and at least one of the at least one secondary node is a wired node that is directly connected to the network.
  • the network side node in the embodiment of the present invention may be an entity that functions as an OAM, a macro station, or a network side control node, such as an MME, an SGW, a PGW, or the like.
  • the processor 102 is configured to:
  • the optimal communication path of the wireless node to the network is determined according to the obtained information about the wireless node accessing the network. For details, refer to the foregoing mode B, and details are not described herein again.
  • the processor 102 determines an optimal communication path of the wireless node to the network according to the obtained information about the wireless node accessing the network, including:
  • the wireless nodes respectively measure the signals sent by the nodes that have the functions of providing data forwarding services for other nodes, and refer to the foregoing method B1, and details are not described herein again;
  • Obtaining, according to the second measurement result reported by the node that has the function of providing the data forwarding service for the other node, is received by the transceiver 101, and selecting, from each node that reports the second measurement result, a node that sets a condition, determines, according to the selected path of each node to the network, a secondary node included in an optimal communication path of the wireless node to the network, and notifies the wireless node and each selected auxiliary node,
  • the second measurement result is that the node having the function of providing the data forwarding service for the other node is measured by the node of the wireless node, and the detection signal sent by the wireless node is measured.
  • the selection is satisfied from each node that sends the second request message.
  • the node that sets the condition determines the most wireless node to the network according to the selected path of each node to the network.
  • the processor 102 determines that the optimal communication path of the wireless node to the network includes: according to the transceiver 101 Receiving an optimal communication path from the wireless node determined by the wireless node that needs to access the network to determine the optimal communication path of the wireless node to the network; or, according to the received information received by the transceiver 101 The optimal communication path of the wireless node to the network notified by the first hop auxiliary node selected by the wireless node that needs to access the network, determining the optimal communication path of the wireless node to the network; or receiving according to the transceiver 101 The wireless node notified by the first hop auxiliary node selected by the wireless node that needs to access the network determines the optimal communication path of the wireless node to the network through the first hop auxiliary node to the network established path access network.
  • the processor 102 is further configured to:
  • the resource is statically configured for the optimal communication path in the first manner, and the optimal is obtained by the second method or the third method.
  • the communication path reconfigures the resource.
  • the processor 102 is further configured to:
  • the wireless node When the downlink data needs to be sent to the wireless node, determining, according to the optimal communication path, a first hop auxiliary node directly connected to the wireless node, and passing the downlink data to the first hop auxiliary node A channel to the network is sent to the first hop auxiliary node, so that the first hop auxiliary node forwards the downlink data to the wireless node.
  • the processor 102 is further configured to:
  • the transceiver 101 After the transceiver 101 receives the notification message sent by the first hop assistant node directly connected to the wireless node in the optimal communication path, re-determining the optimal communication path of the wireless node to the network, the notification Message used Notifying the network side node that the first hop auxiliary node cannot continue to provide the data forwarding service for the wireless node.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

Abstract

本申请公开了一种通信路径的确定方法和装置,解决了现有为需要接入网络的小小区配置的通过与宏站之间的无线信道直接通信的路径,可能会导致传输效率低且传输时延大的问题。方法包括:无线节点在需要接入网络时,获取自身到网络的最优通信路径;以及该无线节点通过获取到的最优通信路径,与网络进行通信;其中,该最优通信路径指示该无线节点通过至少一个辅助节点接入网络,且该至少一个辅助节点中至少有一个辅助节点为直接与网络连接的有线节点。由于通过至少一个具有能够为其他节点提供数据转发服务的功能的辅助节点,接入到网络并与网络进行通信,提高了需要接入网络的无线节点与网络之间数据传输的质量和性能,提高了无线节点的传输效率。

Description

一种通信路径的确定方法和装置
本申请要求在2014年03月25日提交中国专利局、申请号为201410114311.0、发明名称为“一种通信路径的确定方法和装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术领域,特别涉及一种通信路径的确定方法和装置。
背景技术
在长期演进(Long Term Evolution,LTE)系统中,网络侧的节点之间大部分通过有线链路连接,即eNB(基站)之间通过有线链路连接,eNB和核心网节点(例如,移动性管理实体(MME),服务网关(Serving Gateway,S-GW)等)之间也是通过有线链路连接,如图1所示。
同样的,在无线中继(Relay)的架构中,传统eNB之间,eNB和核心网节点之间也是通过有线链路连接的,而Relay和其归属的主基站(Donor eNB,DeNB)之间通过无线接口通信,如图2所示。
移动通信系统未来发展中,随着用户对于无线宽带业务需要的传输速率和容量越来越大,为了更好的满足用户需求,对接入节点的超密集部署,是提高网络容量和吞吐量的有效手段之一。可以预计,未来在吞吐量需求巨大的区域,必将会引入更多的接入节点,从而大大增加了小区部署的密度。每个小小区(small cell)仅覆盖较小的范围,由于距离用户较近,从而可以为用户提供更高的传输效率。另一个方面,为了更好的管理不同的小小区之间的干扰协调和针对用户的移动性问题,小小区需要和大覆盖的宏小区(macro cell)具有一定的从属关系,即小小区需要与宏小区之间有接口,传输控制信令甚至用户数据。
在密集小小区的部署中,并不是所有的场景都适合进行有线回程(backhaul)链路(即小小区到网络的连接)的部署,因此为了部署的便利性,以及接入节点游牧的便利性,无线回程链路也是一个典型场景。在这样的场景中,小小区需要通过无线接口与网络侧节点和/或大覆盖的宏站进行通信。
现有技术中,如果存在小小区需要通过无线路径连接到网络,一般是小小区和宏站之间直接进行无线通信。但是通常情况下,如小小区与宏站之间的距离较远、或小小区与宏站之间有障碍物遮挡等情况下,小小区和宏站之间的无线信道的质量较差,如果小小区直接与宏站进行无线通信,则会导致传输效率低且传输时延大。
发明内容
本发明实施例提供了一种通信路径的确定方法和装置,解决了现有为需要接入网络的小小区配置的通过与宏站之间的无线信道直接通信的路径,可能会导致传输效率低且传输 时延大的问题。
本发明实施例提供的一种通信路径的确定方法,该方法包括:
无线节点在需要接入网络时,获取自身到网络的最优通信路径;
所述无线节点通过获取到的最优通信路径,与网络进行通信;
其中,所述最优通信路径指示所述无线节点通过至少一个辅助节点接入网络,且所述至少一个辅助节点中至少有一个辅助节点为直接与网络连接的有线节点。
在实施中,所述无线节点在需要接入网络时,获取自身到网络的最优通信路径,包括:
所述无线节点从自身周围具有能够为其他节点提供数据转发服务的功能的节点中,选择一个节点作为所述无线节点接入网络且与所述无线节点直接连接的第一跳辅助节点,以确定自身到网络的最优通信路径为通过所述第一跳辅助节点接入网络;
或者,
所述无线节点根据预先配置的无线节点与辅助节点的对应关系,确定出自身到网络的最优通信路径中所包含的至少一个辅助节点,以确定自身到网络的最优通信路径为通过该至少一个辅助节点接入网络;
或者,
所述无线节点接收网络侧节点通知的该网络侧节点为所述无线节点选择的至少一个辅助节点,以确定自身到网络的最优通信路径为通过该至少一个辅助节点接入网络,其中,网络侧节点根据获取到的与所述无线节点接入网络相关的信息确定所述无线节点到网络的最优通信路径。
进一步,所述无线节点从自身周围具有能够为其他节点提供数据转发服务的功能的节点中,选择一个节点作为所述无线节点接入网络且与所述无线节点直接连接的第一跳辅助节点,包括:
所述无线节点从自身周围具有能够为其他节点提供数据转发服务的功能的节点中,选择满足设定条件的节点作为所述无线节点接入网络且与所述无线节点直接连接的第一跳辅助节点;或者,
所述无线节点向自身周围具有能够为其他节点提供数据转发服务的功能的节点发送第一请求消息,根据接收到的自身周围的至少一个具有能够为其他节点提供数据转发服务的功能的节点返回的第一回复消息,选择一个节点作为该无线节点接入网络且与该无线节点直接连接的第一跳辅助节点,其中,所述第一请求消息用于请求通过接收到该第一请求消息的节点接入网络,所述第一回复消息用于通知所述无线节点发送该第一回复消息的节点是否能够作为所述无线节点接入网络的辅助节点。
在实施中,所述无线节点接收网络侧节点通知的该网络侧节点为所述无线节点选择的至少一个辅助节点之前,所述方法还包括:
针对周围具有能够为其他节点提供数据转发服务的功能的节点,所述无线节点对该节点发出的信号进行测量,并将测量得到的第一测量结果上报给网络侧节点,以请求网络侧节点为所述无线节点确定最优通信路径;或者,
针对周围具有能够为其他节点提供数据转发服务的功能的节点,所述无线节点对该节点发出的信号进行测量,并将测量得到的第一测量结果中满足设定门限的第一测量结果上报给网络侧节点,以请求网络侧节点为自身确定最优通信路径。
基于上述任一实施例,所述无线节点根据以下方式确定自身周围具有能够为其他节点提供数据转发服务的功能的节点:
所述无线节点接收到任一节点发送的携带有指示信息的消息后,确定发送所述指示信息的节点具有能够为其他节点提供数据转发服务的功能,所述指示信息用于表示具有能够为其他节点提供数据转发服务的功能;或者,
所述无线节点向自身周围的各节点发送第一消息,以及,在接收到任一节点返回的第二消息时,确定发送所述第二消息的节点具有能够为其他节点提供数据转发服务的功能,其中,所述第一消息用于请求周围的各节点中具有能够为其他节点提供数据转发服务的功能的节点返回第二消息。
在实施中,所述无线节点接收网络侧节点通知的该网络侧节点为所述无线节点选择的至少一个辅助节点之前,所述方法还包括:
所述无线节点向自身周围的节点发送探测信号,其中,所述无线节点周围的节点在接收到所述探测信号后,对所述探测信号进行测量,并将测量得到的第二测量结果或测量得到的第二测量结果中满足设定门限的第二测量结果上报给网络侧节点,以请求网络侧节点为所述无线节点确定最优通信路径;或者,
所述无线节点向自身周围具有能够为其他节点提供数据转发服务的功能的节点发送第一请求消息,其中,所述第一请求消息用于请求通过接收到该第一请求消息的节点接入网络,且接收到所述第一请求消息的节点在确定出自身能够作为所述无线节点接入网络的辅助节点时,向网络侧节点发送第二请求消息,所述第二请求消息用于通知网络侧节点发送该第二请求消息的节点能够作为所述无线节点接入网络的辅助节点。
基于上述任一实施例,所述无线节点通过获取到的最优通信路径,与网络进行通信,包括:
所述无线节点从网络侧节点预先配置的信息中,获取网络侧节点为所述最优通信路径中所述无线节点与其直接连接的第一跳辅助节点之间的通信配置的资源,并使用网络侧节点配置的资源与所述第一跳辅助节点进行通信;或者,
所述无线节点接收网络侧节点发送的资源配置信息,以获取网络侧节点为所述最优通信路径中所述无线节点与其直接连接的第一跳辅助节点之间的通信配置的资源,并使用网 络侧节点重新配置的资源与所述第一跳辅助节点进行通信;或者,
所述无线节点向网络侧节点上报自身所需传输的数据量;以及所述无线节点接收网络侧节点发送的资源配置信息,获取网络侧节点为所述最优通信路径中所述无线节点与其直接连接的第一跳辅助节点当前的通信配置的资源,并使用网络侧节点配置的资源向所述第一跳辅助节点发送所需传输的数据;或者,
所述无线节点通过和所述最优通信路径中与自身直接连接的第一跳辅助节点进行协商,确定出与所述第一跳辅助节点进行通信时所使用的资源。
基于上述任一实施例,所述无线节点通过获取到的最优通信路径,与网络进行通信,包括:
所述无线节点将需要发送给网络侧节点的上行数据,发送给所述最优通信路径中与自身直接连接的第一跳辅助节点,其中,所述第一跳辅助节点根据本地保存的自身到网络的通道与自身到所述无线节点的通道之间的映射关系,将所述上行数据通过自身到网络的通道传输给相应的网络侧节点;
所述无线节点接收所述最优通信路径中与所述无线节点直接连接的第一跳辅助节点发送的来自网络侧节点的下行数据,其中,所述第一跳辅助节点在接收到网络发送的下行数据时,根据本地保存的自身到网络的通道与自身到所述无线节点的通道的映射关系,确定出所述下行数据对应的无线节点,并将所述下行数据转发给所确定的无线节点。
基于上述任一实施例,所述方法还包括:
当所述无线节点确定所述最优通信路径中与自身直接连接的第一跳辅助节点之间的链路质量低于设定阈值时,断开与所述第一跳辅助节点的连接,并重新选择新的最优通信路径接入网络;或者,
所述无线节点在接收到所述最优通信路径中与自身直接连接第一跳辅助节点发送的通知消息后,断开与所述第一跳辅助节点的连接,并重新选择新的最优通信路径接入网络,所述通知消息用于通知所述无线节点该第一跳辅助节点不能继续为所述无线节点提供数据转发服务。
本发明实施例提供的另一种通信路径的确定方法,该方法包括:
网络侧节点确定任一无线节点需要接入网络;
网络侧节点确定所述无线节点到网络的最优通信路径,其中,所述最优通信路径指示所述无线节点通过至少一个辅助节点与网络进行通信,且所述至少一个辅助节点中至少有一个辅助节点为直接与网络连接的有线节点。
在实施中,网络侧节点确定所述无线节点到网络的最优通信路径,包括:
网络侧节点采用预先测量的方式,从位于所述无线节点周围且能够为其他节点提供数据转发服务的各节点中,选择满足设定条件的节点,并根据所选择的各节点到网络的路径, 确定出所述无线节点到网络的最优通信路径中包含的至少一个辅助节点,并将所述无线节点与所选的至少一个辅助节点的对应关系分别配置给所述无线节点和所选的各辅助节点;
或者,
网络侧节点根据获取到的与所述无线节点接入网络相关的信息,确定所述无线节点到网络的最优通信路径。
进一步,网络侧节点根据获取到的与所述无线节点接入网络相关的信息,确定所述无线节点到网络的最优通信路径,包括:
网络侧节点接收所述无线节点上报的第一测量结果,根据接收到的第一测量结果,从位于所述无线节点周围且能够为其他节点提供数据转发服务的各节点中,选择满足设定条件的节点,根据所选择的各节点到网络的路径,确定出所述无线节点到网络的最优通信路径中包含的辅助节点,并通知给所述无线节点和所选的各辅助节点,其中,所述第一测量结果是所述无线节点分别对自身周围具有能够为其他节点提供数据转发服务的功能的各节点发出的信号进行测量得到的;或者,
网络侧节点接收所述无线节点周围至少一个具有能够为其他节点提供数据转发服务的功能的节点上报的第二测量结果,根据接收到的第二测量结果,从上报所述第二测量结果的各节点中,选择满足设定条件的节点,根据所选择的各节点到网络的路径,确定所述无线节点到网络的最优通信路径中包含的辅助节点,并通知给所述无线节点和所选的各辅助节点,其中,所述第二测量结果是所述无线节点周围具有能够为其他节点提供数据转发服务的功能的节点对所述无线节点发出的探测信号进行测量得到的;或者,
网络侧节点接收所述无线节点周围至少一个具有能够为其他节点提供数据转发服务的功能的节点发送的第二请求消息,从发送所述第二请求消息的各节点中,选择满足设定条件的节点,根据所选择的各节点到网络的路径,确定所述无线节点到网络的最优通信路径中包含的辅助节点,并通知给所述无线节点和所选的各辅助节点,其中,所述第二请求消息用于通知网络侧节点发送该第二请求消息的节点能够作为所述无线节点接入网络的辅助节点。
基于上述任一实施例,所述方法还包括:
网络侧节点预先为所述最优通信路径中直接连接的节点之间的通信配置资源,并配置给所述无线节点以及所述最优通信路径中的至少一个辅助节点;或者,
网络侧节点根据当前网络的资源使用情况,为所述最优通信路径中直接连接的节点之间的通信重新配置能够使用的资源,并通过资源配置信息配置给所述无线节点以及所述最优通信路径中的至少一个辅助节点;或者,
网络侧节点根据当前网络的资源使用情况以及所述最优通信路径中各节点所需传输的数据量,为所述最优通信路径中直接连接的节点之间的通信配置资源,并通过资源配置 信息配置给所述无线节点以及所述最优通信路径中的至少一个辅助节点。
基于上述任一实施例,所述方法还包括:
当网络侧节点需要向所述无线节点发送下行数据时,根据所述最优通信路径,确定出与所述无线节点直接连接的第一跳辅助节点,并将所述下行数据通过所述第一跳辅助节点到网络的通道发送给所述第一跳辅助节点,以使所述第一跳辅助节点将所述下行数据转发给所述无线节点。
基于上述任一实施例,所述方法还包括:
网络侧节点在接收到所述最优通信路径中与所述无线节点直接连接的第一跳辅助节点发送的通知消息后,重新确定所述无线节点到网络的最优通信路径,所述通知消息用于通知网络侧节点该第一跳辅助节点不能继续为所述无线节点提供数据转发服务。
本发明实施例提供的一种无线节点,该无线节点包括:
路径获取模块,用于在自身所属的无线节点需要接入网络时,获取所述无线节点到网络的最优通信路径;
通信模块,用于通过所述路径获取模块获取到的最优通信路径,与网络进行通信;
其中,所述最优通信路径指示所述无线节点通过至少一个辅助节点接入网络,且所述至少一个辅助节点中至少有一个辅助节点为直接与网络连接的有线节点。
在实施中,所述路径获取模块具体用于:从所述无线节点周围具有能够为其他节点提供数据转发服务的功能的节点中,选择一个节点作为所述无线节点接入网络且与所述无线节点直接连接的第一跳辅助节点,以确定所述无线节点到网络的最优通信路径为通过所述第一跳辅助节点接入网络;或者,根据预先配置的无线节点与辅助节点的对应关系,确定出所述无线节点到网络的最优通信路径中所包含的至少一个辅助节点,以确定所述无线节点到网络的最优通信路径为通过该至少一个辅助节点接入网络;或者,接收网络侧节点通知的该网络侧节点为所述无线节点选择的至少一个辅助节点,以确定所述无线节点到网络的最优通信路径为通过该至少一个辅助节点接入网络,其中,网络侧节点根据获取到的与所述无线节点接入网络相关的信息确定所述无线节点到网络的最优通信路径。
进一步,所述路径获取模块从所述无线节点周围具有能够为其他节点提供数据转发服务的功能的节点中,选择一个节点作为所述无线节点接入网络且与所述无线节点直接连接的第一跳辅助节点,包括:
从所述无线节点周围具有能够为其他节点提供数据转发服务的功能的节点中,选择满足设定条件的节点作为所述无线节点接入网络且与所述无线节点直接连接的第一跳辅助节点;或者,向所述无线节点周围具有能够为其他节点提供数据转发服务的功能的节点发送第一请求消息,根据接收到的周围的至少一个具有能够为其他节点提供数据转发服务的功能的节点返回的第一回复消息,选择一个节点作为该无线节点接入网络且与该无线节点 直接连接的第一跳辅助节点,其中,所述第一请求消息用于请求通过接收到该第一请求消息的节点接入网络,所述第一回复消息用于通知所述无线节点发送该第一回复消息的节点是否能够作为所述无线节点接入网络的辅助节点。
在实施中,所述路径获取模块还用于:在接收到网络侧节点通知的该网络侧节点为所述无线节点选择的至少一个辅助节点之前,针对周围具有能够为其他节点提供数据转发服务的功能的节点,对该节点发出的信号进行测量,并将测量得到的第一测量结果上报给网络侧节点,以请求网络侧节点为所述无线节点确定最优通信路径;或者,在接收到网络侧节点通知的该网络侧节点为所述无线节点选择的至少一个辅助节点之前,针对周围具有能够为其他节点提供数据转发服务的功能的节点,对该节点发出的信号进行测量,并将测量得到的第一测量结果中满足设定门限的第一测量结果上报给网络侧节点,以请求网络侧节点为所述无线节点确定最优通信路径。
基于上述任一实施例,所述路径获取模块根据以下方式确定周围具有能够为其他节点提供数据转发服务的功能的节点:
接收到任一节点发送的携带有指示信息的消息后,确定发送所述指示信息的节点具有能够为其他节点提供数据转发服务的功能,所述指示信息用于表示具有能够为其他节点提供数据转发服务的功能;或者,向周围的各节点发送第一消息,以及,在接收到任一节点返回的第二消息时,确定发送所述第二消息的节点具有能够为其他节点提供数据转发服务的功能,其中,所述第一消息用于请求周围的各节点中具有能够为其他节点提供数据转发服务的功能的节点返回第二消息。
在实施中,所述路径获取模块还用于:
在接收到网络侧节点通知的该网络侧节点为所述无线节点选择的至少一个辅助节点之前,向周围的节点发送探测信号,其中,所述无线节点周围的节点在接收到所述探测信号后,对所述探测信号进行测量,并将测量得到的第二测量结果或测量得到的第二测量结果中满足设定门限的第二测量结果上报给网络侧节点,以请求网络侧节点为所述无线节点确定最优通信路径;或者,在接收到网络侧节点通知的该网络侧节点为所述无线节点选择的至少一个辅助节点之前,向周围具有能够为其他节点提供数据转发服务的功能的节点发送第一请求消息,其中,第一请求消息用于请求通过接收到该第一请求消息的节点接入网络,且接收到所述第一请求消息的节点在确定出自身能够作为所述无线节点接入网络的辅助节点时,向网络侧节点发送第二请求消息,所述第二请求消息用于通知网络侧节点发送该第二请求消息的节点能够作为所述无线节点接入网络的辅助节点。
基于上述任一实施例,所述通信模块具体用于:
从网络侧节点预先配置的信息中,获取网络侧节点为所述最优通信路径中所述无线节点与其直接连接的第一跳辅助节点之间的通信配置的资源,并使用网络侧节点配置的资源 与所述第一跳辅助节点进行通信;或者,接收网络侧节点发送的资源配置信息,以获取网络侧节点为所述最优通信路径中所述无线节点与其直接连接的第一跳辅助节点之间的通信配置的资源,并使用网络侧节点重新配置的资源与所述第一跳辅助节点进行通信;或者,向网络侧节点上报所述无线节点所需传输的数据量;以及接收网络侧节点发送的资源配置信息,获取网络侧节点为所述最优通信路径中所述无线节点与其直接连接的第一跳辅助节点当前的通信配置的资源,并使用网络侧节点配置的资源向所述第一跳辅助节点发送所需传输的数据;或者,通过和所述最优通信路径中与所述无线节点直接连接的第一跳辅助节点进行协商,确定出与所述第一跳辅助节点进行通信时所使用的资源。
基于上述任一实施例,所述通信模块具体用于:
将需要发送给网络侧节点的上行数据,发送给所述最优通信路径中与自身直接连接的第一跳辅助节点,其中,第一跳辅助节点根据本地保存的自身到网络的通道与自身到所述无线节点的通道之间的映射关系,将所述上行数据通过自身到网络的通道传输给相应的网络侧节点;以及,接收所述最优通信路径中与所述无线节点直接连接的第一跳辅助节点发送的来自网络侧节点的下行数据,其中,第一跳辅助节点在接收到网络发送的下行数据时,根据本地保存的自身到网络的通道与自身到所述无线节点的通道的映射关系,确定出所述下行数据对应的无线节点,并将所述下行数据转发给所确定的无线节点。
基于上述任一实施例,所述路径获取模块还用于:
当确定出所述最优通信路径中与所述无线节点直接连接的第一跳辅助节点之间的链路质量低于设定阈值时,断开与第一跳辅助节点的连接,并重新选择新的最优通信路径接入网络;或者,在接收到所述最优通信路径中与所述无线节点直接连接第一跳辅助节点发送的通知消息后,断开与第一跳辅助节点的连接,并重新选择新的最优通信路径接入网络,所述通知消息用于通知所述无线节点该第一跳辅助节点不能继续为所述无线节点提供数据转发服务。
本发明实施例提供的一种网络侧节点,该网络侧节点包括:
第一处理模块,用于确定任一无线节点需要接入网络;
第二处理模块,用于确定所述无线节点到网络的最优通信路径,其中,所述最优通信路径指示所述无线节点通过至少一个辅助节点与网络进行通信,且所述至少一个辅助节点中至少有一个辅助节点为直接与网络连接的有线节点。
在实施中,所述第二处理模块具体用于:
采用预先测量的方式,从位于所述无线节点周围且能够为其他节点提供数据转发服务的各节点中,选择满足设定条件的节点,并根据所选择的各节点到网络的路径,确定出所述无线节点到网络的最优通信路径中包含的至少一个辅助节点,并将所述无线节点与所选的至少一个辅助节点的对应关系分别配置给所述无线节点和所选的各辅助节点;或者,根 据获取到的与所述无线节点接入网络相关的信息,确定所述无线节点到网络的最优通信路径。
进一步,所述第二处理模块根据获取到的与所述无线节点接入网络相关的信息,确定所述无线节点到网络的最优通信路径,包括:
接收所述无线节点上报的第一测量结果,根据接收到的第一测量结果,从位于所述无线节点周围且能够为其他节点提供数据转发服务的各节点中,选择满足设定条件的节点,根据所选择的各节点到网络的路径,确定出所述无线节点到网络的最优通信路径中包含的辅助节点,并通知给所述无线节点和所选的各辅助节点,所述第一测量结果是所述无线节点分别对自身周围具有能够为其他节点提供数据转发服务的功能的各节点发出的信号进行测量得到的;或者,
接收所述无线节点周围至少一个具有能够为其他节点提供数据转发服务的功能的节点上报的第二测量结果,根据接收到的第二测量结果,从上报所述第二测量结果的各节点中,选择满足设定条件的节点,根据所选择的各节点到网络的路径,确定所述无线节点到网络的最优通信路径中包含的辅助节点,并通知给所述无线节点和所选的各辅助节点,所述第二测量结果是所述无线节点周围具有能够为其他节点提供数据转发服务的功能的节点对所述无线节点发出的探测信号进行测量得到的;或者,
接收所述无线节点周围至少一个具有能够为其他节点提供数据转发服务的功能的节点发送的第二请求消息,从发送所述第二请求消息的各节点中,选择满足设定条件的节点,根据所选择的各节点到网络的路径,确定所述无线节点到网络的最优通信路径中包含的辅助节点,并通知给所述无线节点和所选的各辅助节点,其中,所述第二请求消息用于通知网络侧节点发送该第二请求消息的节点能够作为所述无线节点接入网络的辅助节点。
基于上述任一实施例,所述网络侧节点还包括第三处理模块,用于:
预先为所述最优通信路径中直接连接的节点之间的通信配置资源,并配置给所述无线节点以及所述最优通信路径中的至少一个辅助节点;或者,根据当前网络的资源使用情况,为所述最优通信路径中直接连接的节点之间的通信重新配置能够使用的资源,并通过资源配置信息配置给所述无线节点以及所述最优通信路径中的至少一个辅助节点;或者,根据当前网络的资源使用情况以及所述最优通信路径中各节点所需传输的数据量,为所述最优通信路径中直接连接的节点之间的通信配置资源,并通过资源配置信息配置给所述无线节点以及所述最优通信路径中的至少一个辅助节点。
基于上述任一实施例,所述网络侧节点还包括第四处理模块,用于:
当需要向所述无线节点发送下行数据时,根据所述最优通信路径,确定出与所述无线节点直接连接的第一跳辅助节点,并将所述下行数据通过所述第一跳辅助节点到网络的通道发送给所述第一跳辅助节点,以使所述第一跳辅助节点将所述下行数据转发给所述无线 节点。
基于上述任一实施例,所述第二处理模块还用于:在接收到所述最优通信路径中与所述无线节点直接连接的第一跳辅助节点发送的通知消息后,重新确定所述无线节点到网络的最优通信路径,所述通知消息用于通知网络侧节点该第一跳辅助节点不能继续为所述无线节点提供数据转发服务。
本发明实施例提供的另一种无线节点包括收发信机、以及与该收发信机连接的至少一个处理器,其中:
处理器被配置用于在自身所属的无线节点需要接入网络时,获取所述无线节点到网络的最优通信路径;以及,通过获取到的最优通信路径,与网络进行通信;
其中,最优通信路径指示所述无线节点通过至少一个辅助节点接入网络,且该至少一个辅助节点中至少有一个辅助节点为直接与网络连接的有线节点。
在实施中,处理器被配置具体用于:从自身所属的无线节点周围具有能够为其他节点提供数据转发服务的功能的节点中,选择一个节点作为该无线节点接入网络且与该无线节点直接连接的第一跳辅助节点,以确定该无线节点到网络的最优通信路径为通过所述第一跳辅助节点接入网络;或者,根据预先配置的无线节点与辅助节点的对应关系,确定出自身所属的无线节点到网络的最优通信路径中所包含的至少一个辅助节点,以确定该无线节点到网络的最优通信路径为通过该至少一个辅助节点接入网络;或者,根据收发信机接收到的网络侧节点通知的该网络侧节点为自身所属的无线节点选择的至少一个辅助节点,以确定该无线节点到网络的最优通信路径为通过该至少一个辅助节点接入网络,其中,网络侧节点根据获取到的与该无线节点接入网络相关的信息确定该无线节点到网络的最优通信路径。
在实施中,处理器从自身所属的无线节点周围具有能够为其他节点提供数据转发服务的功能的节点中,选择一个节点作为该无线节点接入网络且与该无线节点直接连接的第一跳辅助节点,包括:
从自身所属的无线节点周围具有能够为其他节点提供数据转发服务的功能的节点中,选择满足设定条件的节点作为该无线节点接入网络且与该无线节点直接连接的第一跳辅助节点;或者,触发收发信机向自身所属的无线节点周围具有能够为其他节点提供数据转发服务的功能的节点发送第一请求消息,根据收发信机接收到的周围的至少一个具有能够为其他节点提供数据转发服务的功能的节点返回的第一回复消息,选择一个节点作为该无线节点接入网络且与该无线节点直接连接的第一跳辅助节点,其中,所述第一请求消息用于请求通过接收到该第一请求消息的节点接入网络,所述第一回复消息用于通知所述无线节点发送该第一回复消息的节点是否能够作为所述无线节点接入网络的辅助节点。
在实施中,处理器还被配置用于:在收发信机接收到网络侧节点通知的该网络侧节点 为自身所属的无线节点选择的至少一个辅助节点之前,针对周围具有能够为其他节点提供数据转发服务的功能的节点,对该节点发出的信号进行测量,并触发收发信机将测量得到的第一测量结果上报给网络侧节点,以请求网络侧节点为该无线节点确定最优通信路径;或者,在收发信机接收到网络侧节点通知的该网络侧节点为自身所属的无线节点选择的至少一个辅助节点之前,针对周围具有能够为其他节点提供数据转发服务的功能的节点,对该节点发出的信号进行测量,并触发收发信机将测量得到的第一测量结果中满足设定门限的第一测量结果上报给网络侧节点,以请求网络侧节点为该无线节点确定最优通信路径。
基于上述任一实施例,处理器根据以下方式确定周围具有能够为其他节点提供数据转发服务的功能的节点:
在收发信机接收到任一节点发送的携带有指示信息的消息后,确定发送所述指示信息的节点具有能够为其他节点提供数据转发服务的功能,所述指示信息用于表示具有能够为其他节点提供数据转发服务的功能;或者,
在收发信机接收到任一节点返回的第二消息时,确定发送所述第二消息的节点具有能够为其他节点提供数据转发服务的功能,其中,收发信机向周围的各节点发送第一消息,所述第一消息用于请求周围的各节点中具有能够为其他节点提供数据转发服务的功能的节点返回第二消息。
进一步,收发信机还被配置用于:
在接收到网络侧节点通知的该网络侧节点为自身所属的无线节点选择的至少一个辅助节点之前,向周围的节点发送探测信号,其中,该无线节点周围的节点在接收到所述探测信号后,对所述探测信号进行测量,并将测量得到的第二测量结果或测量得到的第二测量结果中满足设定门限的第二测量结果上报给网络侧节点,以请求网络侧节点为该无线节点确定最优通信路径;或者,在接收到网络侧节点通知的该网络侧节点为自身所属的无线节点选择的至少一个辅助节点之前,向周围具有能够为其他节点提供数据转发服务的功能的节点发送第一请求消息,其中,第一请求消息用于请求通过接收到该第一请求消息的节点接入网络,且接收到所述第一请求消息的节点在确定出自身能够作为该无线节点接入网络的辅助节点时,向网络侧节点发送第二请求消息,第二请求消息用于通知网络侧节点发送该第二请求消息的节点能够作为该无线节点接入网络的辅助节点。
基于上述任一实施例,处理器被配置具体用于:
从网络侧节点预先配置的信息中,获取网络侧节点为所述最优通信路径中自身所属的无线节点与其直接连接的第一跳辅助节点之间的通信配置的资源,并使用网络侧节点配置的资源与所述第一跳辅助节点进行通信;或者,根据收发信机接收到的网络侧节点发送的资源配置信息,获取网络侧节点为所述最优通信路径中自身所属的无线节点与其直接连接的第一跳辅助节点之间的通信配置的资源,并使用网络侧节点重新配置的资源与所述第一 跳辅助节点进行通信;或者,根据收发信机接收到的网络侧节点发送的资源配置信息,获取网络侧节点为所述最优通信路径中该无线节点与其直接连接的第一跳辅助节点当前的通信配置的资源,并使用网络侧节点配置的资源向所述第一跳辅助节点发送所需传输的数据,其中,收发信机向网络侧节点上报自身所属的无线节点所需传输的数据量;或者,通过和所述最优通信路径中与自身所属的无线节点直接连接的第一跳辅助节点进行协商,确定出与所述第一跳辅助节点进行通信时所使用的资源。
基于上述任一实施例,收发信机被配置具体用于:
将需要发送给网络侧节点的上行数据,发送给所述最优通信路径中与自身所属的直接连接的第一跳辅助节点,其中,第一跳辅助节点根据本地保存的自身到网络的通道与自身到该无线节点的通道之间的映射关系,将所述上行数据通过自身到网络的通道传输给相应的网络侧节点;以及,接收所述最优通信路径中与自身所属的无线节点直接连接的第一跳辅助节点发送的来自网络侧节点的下行数据,其中,第一跳辅助节点在接收到网络发送的下行数据时,根据本地保存的自身到网络的通道与自身到该无线节点的通道的映射关系,确定出所述下行数据对应的无线节点,并将所述下行数据转发给所确定的无线节点。
基于上述任一实施例,处理器还被配置用于:
当确定所述最优通信路径中与自身所属的无线节点直接连接的第一跳辅助节点之间的链路质量低于设定阈值时,断开与所述第一跳辅助节点的连接,并重新选择新的最优通信路径接入网络;或者,在收发信机接收到所述最优通信路径中与自身所属的无线节点直接连接第一跳辅助节点发送的通知消息后,断开与所述第一跳辅助节点的连接,并重新选择新的最优通信路径接入网络,所述通知消息用于通知该无线节点该第一跳辅助节点不能继续为该无线节点提供数据转发服务。
本发明实施例提供的另一种网络侧节点包括收发信机、以及与该收发信机连接的至少一个处理器,其中:
处理器被配置用于:在确定任一无线节点需要接入网络后,确定所述无线节点到网络的最优通信路径,其中,所述最优通信路径指示所述无线节点通过至少一个辅助节点与网络进行通信,且该至少一个辅助节点中至少有一个辅助节点为直接与网络连接的有线节点。
在实施中,处理器被配置具体用于:
采用预先测量的方式,从位于所述无线节点周围且能够为其他节点提供数据转发服务的各节点中,选择满足设定条件的节点,并根据所选择的各节点到网络的路径,确定出所述无线节点到网络的最优通信路径中包含的至少一个辅助节点,并将所述无线节点与所选的至少一个辅助节点的对应关系分别配置给所述无线节点和所选的各辅助节点;或者,根据获取到的与所述无线节点接入网络相关的信息,确定所述无线节点到网络的最优通信路 径。
进一步,处理器根据获取到的与所述无线节点接入网络相关的信息,确定所述无线节点到网络的最优通信路径,包括:
根据收发信机接收到的所述无线节点上报的第一测量结果,从位于所述无线节点周围且能够为其他节点提供数据转发服务的各节点中,选择满足设定条件的节点,根据所选择的各节点到网络的路径,确定出所述无线节点到网络的最优通信路径中包含的辅助节点,并通知给所述无线节点和所选的各辅助节点,所述第一测量结果是所述无线节点分别对自身周围具有能够为其他节点提供数据转发服务的功能的各节点发出的信号进行测量得到的;或者,
根据收发信机接收到的所述无线节点周围至少一个具有能够为其他节点提供数据转发服务的功能的节点上报的第二测量结果,从上报所述第二测量结果的各节点中,选择满足设定条件的节点,根据所选择的各节点到网络的路径,确定所述无线节点到网络的最优通信路径中包含的辅助节点,并通知给所述无线节点和所选的各辅助节点,所述第二测量结果是所述无线节点周围具有能够为其他节点提供数据转发服务的功能的节点对所述无线节点发出的探测信号进行测量得到的;或者,
根据收发信机接收到的所述无线节点周围至少一个具有能够为其他节点提供数据转发服务的功能的节点发送的第二请求消息,从发送所述第二请求消息的各节点中,选择满足设定条件的节点,根据所选择的各节点到网络的路径,确定所述无线节点到网络的最优通信路径中包含的辅助节点,并通知给所述无线节点和所选的各辅助节点,其中,所述第二请求消息用于通知网络侧节点发送该第二请求消息的节点能够作为所述无线节点接入网络的辅助节点。
基于上述任一实施例,处理器还被配置用于:
预先为所述最优通信路径中直接连接的节点之间的通信配置资源,并配置给所述无线节点以及所述最优通信路径中的至少一个辅助节点,具体参见上述第一种方式,此处不再赘述;或者,根据当前网络的资源使用情况,为所述最优通信路径中直接连接的节点之间的通信重新配置能够使用的资源,并通过资源配置信息配置给所述无线节点以及所述最优通信路径中的至少一个辅助节点,具体参见上述第二种方式,此处不再赘述;或者,根据当前网络的资源使用情况以及所述最优通信路径中各节点所需传输的数据量,为所述最优通信路径中直接连接的节点之间的通信配置资源,并通过资源配置信息配置给所述无线节点以及所述最优通信路径中的至少一个辅助节点,具体参见上述第三种方式,此处不再赘述。
基于上述任一实施例,处理器还被配置用于:当需要向所述无线节点发送下行数据时,根据所述最优通信路径,确定出与所述无线节点直接连接的第一跳辅助节点,并将所 述下行数据通过所述第一跳辅助节点到网络的通道发送给所述第一跳辅助节点,以使所述第一跳辅助节点将所述下行数据转发给所述无线节点。
基于上述任一实施例,处理器还被配置用于:在收发信机接收到所述最优通信路径中与所述无线节点直接连接的第一跳辅助节点发送的通知消息后,重新确定所述无线节点到网络的最优通信路径,所述通知消息用于通知网络侧节点该第一跳辅助节点不能继续为所述无线节点提供数据转发服务。
本发明实施例提供的方法和装置中所涉及的设定条件包括以下条件中的至少一种:
与所述无线节点之间的链路质量最优;
与所述无线节点之间的链路质量大于设定的质量阈值;
其回传能够容纳无线节点所传输的数据;
与所述无线节点之间的链路传输时延最小;
与所述无线节点之间的链路传输时延小于设定的时延阈值;
其回程链路传输时延最小;
其回程链路传输时延小于设定的时延阈值;
其回程链路传输速率不小于无线接口速率;
与所述无线节点之间的链路传输速率最大;以及,
与所述无线节点之间的链路传输速率大于设定的速率阈值。
本发明实施例提供的方法和装置中,无线节点在需要接入网络时,获取自身到网络的最优通信路径,其中,该最优通信路径指示该无线节点通过至少一个辅助节点接入网络,该至少一个辅助节点中至少有一个辅助节点为直接与网络连接的有线节点;以及,该无线节点通过获取到的最优通信路径,与网络进行通信,从而提高了该无线节点与网络之间数据传输的质量和性能,也提高了该无线节点的传输效率。
附图说明
图1为背景技术提供的LTE系统中的网络侧节点之间通信链路示意图;
图2为背景技术提供的LTE系统中的无线中继的架构示意图;
图3为本发明实施例提供的一种通信路径的确定方法的示意图;
图4为本发明实施例提供的单跳节点通信路径的示意图;
图5为本发明实施例提供的多跳节点通信路径的示意图;
图6为本发明实施例提供的另一种通信路径的确定方法的示意图;
图7为本发明实施例提供的一种无线节点的示意图;
图8为本发明实施例提供的一种网络侧节点的示意图;
图9为本发明实施例提供的另一种无线节点的示意图;
图10为本发明实施例提供的另一种网络侧节点的示意图。
具体实施方式
本发明实施例在任一无线节点需要接入网络时,通过至少一个具有能够为其他节点提供数据转发服务的功能的辅助节点,接入到网络并与网络进行通信,从而提高了无线节点与网络之间数据传输的质量和性能,提高了无线节点的传输效率。
下面结合说明书附图对本发明实施例作进一步详细描述。应当理解,此处所描述的实施例仅用于说明和解释本发明,并不用于限定本发明。
本发明实施例提供了一种通信路径的确定方法,参见图3所示,该方法包括以下步骤:
步骤31、无线节点在需要接入网络时,获取自身到网络的最优通信路径,该最优通信路径指示该无线节点通过至少一个辅助节点接入网络,该至少一个辅助节点中至少有一个辅助节点为直接与网络连接的有线节点。
本步骤中,需要接入网络的无线节点可以是网络中新部署的无线节点,也可以是网络中已部署的无线节点需要重新接入网络,需要接入网络的无线节点获取到的最优通信路径指示该无线节点通过至少一个辅助节点接入网络,即该最优通信路径指示该无线节点通过至少一个辅助节点与网络侧节点(如宏站)进行通信。
本发明实施例所涉及的辅助节点为:至少满足具有能够为其他节点提供数据转发服务的功能且自身开启了该功能的节点。
其中,辅助节点可以是一个有线backhaul连接的节点(即有线节点,如有线小区),也可以是一个无线backhaul连接的节点(即无线节点,如无线小区),但步骤31中无线节点获取到的最优通信路径中所涉及到的至少一个辅助节点中至少有一个辅助节点为直接与网络连接的有线节点。
需要说明的是,步骤31中需要接入网络的无线节点获取到的最优通信路径中所包含的至少一个辅助节点中,对于其中的有线节点,其与网络侧节点(如宏站)之间采取有线传输协议传输数据和信令;如果该至少一个辅助节点中包含无线节点,则该无线节点也需要获取其与网络侧节点之间的通信路径,选出最优传输路径与网络侧节点进行通信,其中,该无线节点可以采用自身到网络已建立的路径与网络侧节点进行通信,也可以重新选择至少一个辅助节点接入网络。
以新部署无线节点为例,在实际部署中,如果某地由于系统容量或吞吐量的提升,需要部署一个无线节点(如无线小小区(small cell)),无线节点可以采用三种方式接入网络,一是在无线节点与宏站之间部署有线回传(backhaul)链路进行直接通信(不是所有的场地都适合部署有线回传链路);二是在无线节点与宏站之间部署无线回传(backhaul)链路进行直接通信(有些场景下无线回传链路的链路质量不是最优,如其链路质量低于设定的质量阈值);三是采用本发明实施例提供的最优通信路径,通过至少一个辅助节点与网络 侧节点(如宏站)进行通信,其中,该最优通信路径的链路质量优于该无线节点直接接入网络的无线回传链路的链路质量。
本步骤中所涉及的最优通信路径是指需要接入网络的无线节点通过至少一个辅助节点接入网络,且该最优通信路径满足以下至少一个条件:链路质量最优、链路质量大于设定的质量阈值、传输带宽大、传输带宽大于设定的带宽阈值、传输时延最小、传输时延小于设定的时延阈值、链路传输速率最大、链路传输速率大于设定的速率阈值。
步骤32、需要接入网络的无线节点通过获取到的最优通信路径,与网络进行通信。
本步骤中,需要接入网络的无线节点通过获取到的最优通信路径,与网络侧节点进行通信,即无线节点通过至少一个辅助节点与网络侧节点进行通信。具体的,该至少一个辅助节点转发该无线节点与网络侧节点之间的数据和信令,即当该至少一个辅助节点在接收到无线节点发送的上行数据后,将该上行数据转发给网络侧节点,当该至少一个辅助节点在接收到网络侧节点发送的下行数据后,将该下行数据转发给该无线节点。
本发明实施例中,无线节点在需要接入网络时,获取自身到网络的最优通信路径,其中,该最优通信路径指示该无线节点通过至少一个辅助节点接入网络,该至少一个辅助节点中至少有一个辅助节点为直接与网络连接的有线节点;以及,该无线节点通过获取到的最优通信路径,与网络进行通信,从而提高了该无线节点与网络之间数据传输的质量和性能,也提高了该无线节点的传输效率。
在实施中,步骤31中,无线节点在需要接入网络时,获取自身到网络的最优通信路径,包括以下三种实现方式:
方式1、由需要接入网络的无线节点确定自身到网络的通信路径,即由该无线节点确定自身到网络的通信路径所包含的辅助节点。
该方式下,步骤31具体包括:需要接入网络的无线节点从自身周围具有能够为其他节点提供数据转发服务的功能的节点中,选择一个节点作为该无线节点接入网络且与该无线节点直接连接的第一跳辅助节点,以确定自身到网络的最优通信路径为通过所选择的第一跳辅助节点接入网络。
该方式下,需要接入网络的无线节点确定出的自身到网络的最优通信路径包括单跳节点通信路径(即该无线节点通过一个辅助节点接入网络)和多跳节点通信路径(即该无线节点通过至少两个辅助节点接入网络)。
一、若需要接入网络的无线节点确定出的第一跳辅助节点为有线节点,即第一跳辅助节点采用有线链路直接与网络连接,则该无线节点确定出的最优通信路径为:无线节点—辅助节点(即第一跳辅助节点)—网络侧节点,即单跳节点通信路径,从而无线节点可以通过自身所选择的有线节点,与网络进行通信,其中,所选择的第一跳辅助节点通过自身到网络已建立的有线链路转发该无线节点与网络之间传输的数据,具体参见图4所示,图 中的实线表示有线backhaul链路,虚线表示无线backhaul链路。
二、若需要接入网络的无线节点确定出的第一跳辅助节点为无线节点,即第一跳辅助节点与网络之间不存在直接连接的有线链路,则该无线节点的最优通信路径为:无线节点—第一跳辅助节点—第二跳辅助节点—……—网络侧节点,具体参见图5所示,图中的实线表示有线backhaul链路,虚线表示无线backhaul链路,从而无线节点可以通过自身所选择的第一跳辅助节点、该第一跳辅助节点到网络已建立的路径、或该第一跳辅助节点为自身到网络所选择的至少一个辅助节点,与网络进行通信。
具体的,若所选择的第一跳辅助节点通过自身到网络已建立的路径接入网络,则第二跳辅助节点为该第一跳辅助节点已建立的到网络的路径中与该第一跳辅助节点连接的节点,第三跳辅助节点为该第一跳辅助节点已建立的到网络的路径中与该第二跳辅助节点连接的节点,依次类推;
若所选择的第一跳辅助节点通过自身所选择的至少一个辅助节点接入网络,则该第一跳辅助节点从自身周围具有能够为其他节点提供数据转发服务的功能的节点中,选择满足设定条件的节点,作为该无线节点接入网络且与该第一跳辅助节点直接连接的第二跳辅助节点,该第二跳辅助节点通过自身到网络已建立的路径、或该第二跳辅助节点为自身到网络所选择的至少一个辅助节点转发该无线节点与网络之间传输的数据,依次类推,直至连接到网络侧节点或者连接到一个有线节点,从而确定出该无线节点到网络的最优通信路径。
该方式下,第一跳辅助节点也可以是宏站。
该方式下,可以由需要接入网络的无线节点将自身到网络的最优通信路径通知给网络侧节点;也可以由该无线节点所选择的第一跳辅助节点将该无线节点到网络的最优通信路径通知给网络侧节点,或者,由该无线节点所选择的第一跳辅助节点通知网络侧节点该无线节点通过该第一跳辅助节点到网络已建立的路径接入网络。
该方式下,步骤31进一步包括以下两种实现方式:
方式11、需要接入网络的无线节点从自身周围具有能够为其他节点提供数据转发服务的功能的节点中,选择满足设定条件的节点作为该无线节点接入网络且与该无线节点直接连接的第一跳辅助节点。
本发明实施例中所涉及的设定条件包括以下条件中的至少一种:
与无线节点之间的链路质量最优;
与无线节点之间的链路质量大于设定的质量阈值;
其回传能够容纳无线节点所传输的数据;
其回程链路传输时延最小;
其回程链路传输时延小于设定的时延阈值;
其回程链路传输速率不小于无线接口速率;
与无线节点之间的链路传输时延最小;
与无线节点之间的链路传输时延小于设定的时延阈值;
与无线节点之间的链路传输速率最大;以及,
与无线节点之间的链路传输速率大于设定的速率阈值。
该方式下,需要接入网络的无线节点按照设定的条件,从自身周围具有能够为其他节点提供数据转发服务的功能的节点中,选择自身的第一跳辅助节点,进而通过该第一跳辅助节点到网络已建立的路径、或该第一跳辅助节点为自身到网络所选择的至少一个辅助节点,与网络进行通信。优选的,需要接入网络的无线节点通过所选择的第一跳辅助节点以及该第一跳辅助节点到网络已建立的路径,与网络进行通信。
具体的,需要接入网络的无线节点选择了自身的第一跳辅助节点后,通知给该第一跳辅助节点,相应的,第一跳辅助节点根据自身到网络已建立的路径的负荷情况,判断是否使用自身到网络已建立的路径为该无线节点提供数据转发服务;若否,则第一跳辅助节点为自身到网络选择至少一个辅助节点,以建立自身到网络的最优通信路径。
方式12、需要接入网络的无线节点向自身周围具有能够为其他节点提供数据转发服务的功能的节点发送第一请求消息,根据接收到的自身周围的至少一个具有能够为其他节点提供数据转发服务的功能的节点返回的第一回复消息,选择一个节点作为该无线节点接入网络且与该无线节点直接连接的第一跳辅助节点,其中,该第一请求消息用于请求通过接收到该第一请求消息的节点接入网络,该第一回复消息用于通知需要接入网络的无线节点发送该第一回复消息的节点是否能够作为该无线节点接入网络的辅助节点。
该方式下,需要接入网络的无线节点向自身周围具有能够为其他节点提供数据转发服务的功能的节点发送第一请求消息,以请求通过接收到该第一请求消息的节点接入网络;相应的,接收到该第一请求消息的节点根据自身的链路状况(如链路负荷、该节点到网络的backhual信息等),判断自身是否能够作为该无线节点接入网络的辅助节点,并在第一回复消息中通知该无线节点该节点是否能够作为该无线节点接入网络的辅助节点。如,在第一回复消息中携带1比特的指示信息,以通知该无线节点该节点是否能够作为该无线节点接入网络的辅助节点。
优选的,第一回复消息中还携带接收到该第一请求消息的节点到网络的backhual信息,以供需要接入网络的无线节点进行选择。其中,backhual信息包括时延信息、数据带宽信息、无线跳数信息等。
方式2、由网络侧节点(如起操作维护(Operation And Maintenance,OAM)作用的实体、宏站、网络侧控制节点(如移动性管理实体(Mobility Management Entity,MME)、服务网关(Serving Gateway,SGW)、分组数据网网关(PDN Gateway,PGW;Packet Data  Network,PDN)等))通过预先测量的方式,为需要接入网络的无线节点选择至少一个辅助节点,并将为该无线节点配置的辅助节点预先配置给该无线节点,即由网络侧节点预先为该无线节点配置最优通信路径,并将无线节点与辅助节点的对应关系配置给每个无线节点及其对应的辅助节点。
该方式下,步骤31具体包括:需要接入网络的无线节点根据预先配置的无线节点与辅助节点的对应关系,确定出自身到网络的最优通信路径中所包含的至少一个辅助节点,以确定自身到网络的最优通信路径为通过该至少一个辅助节点接入网络。
该方式下,若网络侧节点为需要接入网络的无线节点配置了一个采用有线链路与网络直接连接的有线节点作为与该无线节点直接连接的第一跳辅助节点(即配置了一个辅助节点),则网络侧节点为该无线节点配置的最优通信路径为单跳节点通信路径;若网络侧节点为需要接入网络的无线节点配置了至少两个辅助节点,则网络侧节点为该无线节点配置的最优通信路径为多跳节点通信路径。
方式3、由网络侧节点根据获取到的与需要接入网络的无线节点接入网络相关的信息确定所述无线节点到网络的最优通信路径,确定该无线节点到网络的最优通信路径(即该无线节点到网络所需的辅助节点),并通知给该无线节点及其辅助节点。
该方式下,步骤31具体包括:需要接入网络的无线节点接收网络侧节点通知的该网络侧节点为该无线节点选择的至少一个辅助节点,以确定自身到网络的最优通信路径为通过该至少一个辅助节点接入网络。
该方式下,若网络侧节点为需要接入网络的无线节点选择了采用有线链路与网络直接连接的有线节点作为与该无线节点直接连接的第一跳辅助节点(即选择了一个辅助节点),则无线节点确定自身到网络的最优通信路径为单跳节点通信路径;若网络侧节点为需要接入网络的无线节点选择了至少两个辅助节点,则无线节点确定自身到网络的最优通信路径为多跳节点通信路径。
该方式进一步又包括以下三种方式:
方式31、网络侧节点根据需要接入网络的无线节点上报的第一测量结果,为该无线节点配置至少一个辅助节点。
该方式下,步骤31之前,该方法还包括:
针对周围具有能够为其他节点提供数据转发服务的功能的节点,需要接入网络的无线节点对该节点发出的信号进行测量,并将测量得到的第一测量结果上报给网络侧节点;或者,
针对周围具有能够为其他节点提供数据转发服务的功能的节点,需要接入网络的无线节点对该节点发出的信号进行测量,并将测量得到的第一测量结果中满足设定门限的第一测量结果上报给网络侧节点。
其中,需要接入网络的无线节点进行的测量可以是基于获取到的每个节点发出的公共信号(如公共导频信号)的测量;由于该无线节点的覆盖均比较小,有可能公共信号无法覆盖到该无线节点,因此,该无线节点进行的测量也可以是基于获取到的每个节点发出的专用信号(如该无线节点的路径优化所配置的专用信号)的测量,具体测量过程参见3GPP TS36.214中的描述。
进一步,网络侧节点接收需要接入网络的无线节点上报的第一测量结果,根据接收到的第一测量结果,从位于该无线节点周围且能够为其他节点提供数据转发服务的各节点中,选择满足设定条件的节点,根据所选择的各节点到网络的路径,确定出该无线节点到网络的最优通信路径中包含的至少一个辅助节点,并通知给该无线节点和所选的各辅助节点。
方式32、网络侧节点根据需要接入网络的无线节点周围的节点上报的第二测量结果,为该无线节点配置至少一个辅助节点。
该方式下,步骤31之前,该方法还包括:
需要接入网络的无线节点向自身周围的节点发送探测信号,其中,该无线节点周围的节点在接收到该无线节点发送的探测信号后,对该探测信号进行测量并将测量得到的第二测量结果上报给网络侧节点。
进一步,网络侧节点接收需要接入网络的无线节点周围且具有能够为其他节点提供数据转发服务的功能的节点上报的第二测量结果,根据接收到的第二测量结果,从位于该无线节点周围且能够为其他节点提供数据转发服务的各节点中,选择满足设定条件的节点,根据所选择的各节点到网络的路径,确定该无线节点到网络的最优通信路径中包含的至少一个辅助节点,并通知给该无线节点和所选的各辅助节点。
方式33、网络侧节点在接收到需要接入网络的无线节点周围的具有能够为其他节点提供数据转发服务的功能的节点发送的第二请求消息后,为该无线节点确定到网络的最优通信路径。
该方式下,步骤31之前,该方法包括:
需要接入网络的无线节点向自身周围具有能够为其他节点提供数据转发服务的功能的节点发送第一请求消息,其中,该第一请求消息用于请求通过接收到该第一请求消息的节点接入网络,且接收到该第一请求消息的节点在确定出自身能够作为该无线节点接入网络的辅助节点时,向网络侧节点发送第二请求消息,该第二请求消息用于通知网络侧节点发送该第二请求消息的节点能够作为该无线节点接入网络的辅助节点。
优选的,该第二请求消息中还携带接收到该第一请求消息的节点到网络的backhual信息,以供网络侧节点进行选择。其中,backhual信息包括时延信息、数据带宽信息、无线跳数信息等。
基于上述任一实施例,需要接入网络的无线节点根据以下方式确定自身周围具有能够为其他节点提供数据转发服务的功能的节点:
该无线节点接收到任一节点发送的携带有指示信息的消息后,确定发送该指示信息的节点具有能够为其他节点提供数据转发服务的功能,该指示信息用于表示具有能够为其他节点提供数据转发服务的功能;或者,
该无线节点向自身周围的各节点发送第一消息,以及,在接收到任一节点返回的第二消息时,确定发送该第二消息的节点具有能够为其他节点提供数据转发服务的功能,其中,该第一消息用于请求周围各节点中具有能够为其他节点提供数据转发服务的功能的节点返回第二消息。
基于上述任一实施例,步骤32中,需要接入网络的无线节点通过获取到的最优通信路径,与网络进行通信,包括以下四种方式:
方式一、需要接入网络的无线节点从网络侧节点预先配置的信息中,获取网络侧节点为自身的最优通信路径中该无线节点与其直接连接的第一跳辅助节点之间的通信配置的资源,并使用网络侧节点配置的资源与该第一跳辅助节点进行通信。
该方式下,网络侧节点通过静态配置方式为该无线节点的最优通信路径配置资源,在规划的时候,就考虑好无线节点的最优通信路径中任意两个直接连接的节点之间通信所使用的资源,并配置给该最优通信路径中的各节点,如通过OAM系统配置给各节点,之后两个直接连接的节点协商使用所配置的资源。
方式二、需要接入网络的无线节点接收网络侧节点发送的资源配置信息,以获取网络侧节点为自身的最优通信路径中该无线节点与其直接连接的第一跳辅助节点之间的通信配置的资源,并使用网络侧节点重新配置的资源与该第一跳辅助节点进行通信。
方式下,网络侧节点通过半静态配置为该无线节点的最优通信路径配置资源;即网络侧节点可以根据当前网络的资源使用情况,为该最优通信路径中直接连接的节点之间的无线传输分配半静态的资源,该资源可以根据业务量大小进行重配,并在没有传输的时候可以完全删除。当资源半静态配置给该最优通信路径中的各节点之后,资源的具体使用需要各节点之间协商。
方式三、需要接入网络的无线节点向网络侧节点上报自身所需传输的数据量;该无线节点接收网络侧节点发送的资源配置信息,获取网络侧节点为自身的最优通信路径中该无线节点与其直接连接的第一跳辅助节点当前的通信配置的资源,并使用网络侧节点配置的资源向该第一跳辅助节点发送所需传输的数据。
该方式下,网络侧节点通过动态配置为该无线节点的最优通信路径中的配置资源;即网络侧节点可以根据当前网络的资源使用情况,为该最优通信路径中直接连接的节点之间的无线传输实时分配资源,该资源的分配根据各节点当前待传输的业务量和复杂的调度算 法进行,并通过动态信令的方式,将资源调度结果发送给该最优通信路径中的各节点,直接连接的节点中的发送端在该调度资源上传输,而接收端在该调度资源上进行接收,从而完成传输过程。
方式四、需要接入网络的无线节点通过和自身的最优通信路径中与自身直接连接的第一跳辅助节点进行协商,确定出与该第一跳辅助节点进行通信时所使用的资源。
举例说明,例如,需要接入网络的无线节点获取自身能够使用且处于空闲状态的资源,并将获取到的资源通知给与第一跳辅助节点;该无线节点接收第一跳辅助节点发送的该第一跳辅助节点能够使用且处于空闲状态的资源;以及该无线节点使用双方能够使用且处于空闲状态的资源与该第一跳辅助节点进行通信。
又如,第一跳辅助节点在自身能够使用的资源中专门划分一部分资源,作为与该无线节点通信时所使用的资源,或者,需要接入网络的无线节点在自身能够使用的资源中专门划分一部分资源,作为与第一跳辅助节点通信时所使用的资源,或者,需要接入网络的无线节点和第一跳辅助节点都进行无线电感知,将满足在该无线节点和第一跳辅助节点均能触及的空域范围内且均可使用的资源,作为二者通信时所使用的资源。
基于上述方式一~方式四中的任意方式,若第一跳辅助节点采用自身到网络已建立的路径,与网络进行通信,则第一跳辅助节点到网络已建立的路径中各节点可以使用网络侧节点为该路径已配置的资源进行通信,从而节省了资源开销。
基于上述任一实施例,作为一种优选的实现方式,步骤32具体包括:
需要接入网络的无线节点将需要发送给网络侧节点的上行数据,发送给自身到网络的最优通信路径中与自身直接连接的第一跳辅助节点,该第一跳辅助节点根据本地保存的自身到网络的通道与自身到该无线节点的通道之间的映射关系,将该上行数据通过自身到网络的通道传输给相应的网络侧节点;
需要接入网络的无线节点接收自身到网络的最优通信路径中与该无线节点直接连接的第一跳辅助节点发送的来自网络侧节点的下行数据,其中,该第一跳辅助节点在接收到网络发送的下行数据时,根据本地保存的自身到网络的通道与自身到该无线节点的通道的映射关系,确定出该下行数据对应的无线节点,并将该下行数据转发给所确定的无线节点。
该方式下,需要接入网络的无线节点的寻址方式采用通道代理的方式,该方式的思路是:第一跳辅助节点对该无线节点的用户平面(例如S1-U,X2-U)和控制平面(例如S1-MME,X2-C)的通道进行代理,即该第一跳辅助节点维护两段通道的映射关系,一段是第一跳辅助节点到网络侧节点的通道,另一段是第一跳辅助节点到需要接入网络的无线节点的通道,该第一跳辅助节点管理和存储上述映射关系。当下行数据到达第一跳辅助节点时,第一跳辅助节点根据上述映射关系,将下行数据映射到与该无线节点的对应通道中,进而发送给该无线节点。
该方式下,网络侧节点是不知道第一跳辅助节点与需要接入网络的无线节点之间的映射关系。
基于上述任一实施例,该方法还包括:
当需要接入网络的无线节点确定自身的最优通信路径中与自身直接连接的第一跳辅助节点之间的链路质量低于设定阈值时,断开与该第一跳辅助节点的连接,并重新选择新的最优通信路径接入网络;或者,
需要接入网络的无线节点在接收到自身的最优通信路径中与自身直接连接的第一跳辅助节点发送的通知消息后,断开与该第一跳辅助节点的连接,并重新选择新的最优通信路径接入网络,该通知消息用于通知该无线节点该第一跳辅助节点不能继续为该无线节点提供数据转发服务。
具体的,在通信过程中,若需要接入网络的无线节点的最优通信路径中与该无线节点直接连接的第一跳辅助节点的出现负荷过高等问题时,该第一跳辅助节点向该无线节点或网络侧节点发送通知消息,以通知该无线节点或网络侧节点该第一跳辅助节点不能继续为该无线节点提供数据转发服务,从而使该无线节点或网络侧节点发起该无线节点的最优通信路径的重建过程。
基于同一发明构思,本发明实施例还提供了一种通信路径的确定方法,参见图6所示,该方法包括:
步骤61、网络侧节点确定任一无线节点需要接入网络。
本步骤中,需要接入网络的无线节点可以是网络中新部署的无线节点,也可以是网络中已部署的无线节点需要重新接入网络。
以新部署无线节点为例,在实际部署中,如果某地由于系统容量或吞吐量的提升,需要部署一个无线节点,首选优选在无线节点与宏站之间部署有线backhaul链路进行直接通信,若不能部署有线backhaul链路,则可以选择在无线节点与宏站之间部署无线backhaul链路进行直接通信,若该无线节点与宏站直接通信的无线backhaul链路的链路质量低于设定阈值时,则按照步骤62确定出该无线节点到网络的最优通信路径。
步骤62、网络侧节点确定该无线节点到网络的最优通信路径,其中,该最优通信路径指示该无线节点通过至少一个辅助节点与网络进行通信,且该至少一个辅助节点中至少有一个辅助节点为直接与网络连接的有线节点。
本发明实施例所涉及的辅助节点为:至少满足具有能够为其他节点提供数据转发服务的功能且自身开启了该功能的节点。
其中,辅助节点可以是一个有线backhaul连接的节点(即有线节点,如有线小区),也可以是一个无线backhaul连接的节点(即无线节点,如无线小区),但步骤62中网络侧节点确定出的最优通信路径中所涉及到的至少一个辅助节点中至少有一个辅助节点为直 接与网络连接的有线节点。
本发明实施例中,网络侧节点在确定任一无线节点需要接入网络后,确定该无线节点到网络的最优通信路径,其中,该最优通信路径指示该无线节点通过至少一个辅助节点与网络进行通信,且该至少一个辅助节点中至少有一个辅助节点为直接与网络连接的有线节点,从而提高了无线节点与网络之间数据传输的质量和性能,提高了无线节点的传输效率。
本发明实施例中的网络侧节点可以为起OAM作用的实体、宏站,也可以为网络侧控制节点,如MME、SGW、PGW等。
在实施中,步骤61中,网络侧节点确定需要接入网络的无线节点到网络的最优通信路径,包括以下两种方式:
方式A、网络侧节点采用预先测量的方式,为需要接入网络的无线节点配置至少一个辅助节点,具体参见上述方式2。
该方式下,步骤61具体包括:网络侧节点采用预先测量的方式,从位于需要接入网络的无线节点周围且能够为其他节点提供数据转发服务的各节点中,选择满足设定条件的节点,并根据所选择的各节点到网络的路径,确定出该无线节点到网络的最优通信路径中包含的至少一个辅助节点,并将该无线节点与所选的至少一个辅助节点的对应关系分别配置给该无线节点和所选的各辅助节点。
该方式下,若网络侧节点为需要接入网络的无线节点配置了一个采用有线链路与网络直接连接的有线节点作为与该无线节点直接连接的第一跳辅助节点(即配置了一个辅助节点),则网络侧节点为该无线节点配置的最优通信路径为单跳节点通信路径;若网络侧节点为需要接入网络的无线节点配置了至少两个辅助节点,则网络侧节点为该无线节点配置的最优通信路径为多跳节点通信路径。
以单跳节点路径为例说明,网络侧节点可以在需要接入网络的无线节点周围,查找有线backhaul节点(如small cell),并将与该无线节点的链路质量最优且其有线backhaul部分能够容纳该无线节点所传输的数据的节点选定为该无线节点的辅助节点,并将该无线节点与网络侧节点为其选择的辅助节点的对应关系配置给二者。即网络侧节点通过预先测量的方式,为需要接入网络的无线节点选择合适的辅助节点,从而建立该无线节点—辅助节点—网络侧节点之间的通信路径,从而在传输效率和时延等方面的性能优于该无线节点—网络侧节点之间的直接无线路径,并通过预配置的方式,将该无线节点与网络侧节点为其选择的辅助节点的对应关系通知给二者,这样,该无线节点与网络侧节点为其选择的辅助节点在之后的工作中,可以进行数据和信令交互。
方式B、网络侧节点根据获取到的与需要接入网络的无线节点接入网络相关的信息,确定所述无线节点到网络的最优通信路径。
该方式进一步又包括以下三种方式:
方式B1、网络侧节点根据需要接入网络的无线节点上报的第一测量结果,为该无线节点配置至少一个辅助节点,具体参见上述方式31。
该方式下,步骤61具体包括:网络侧节点接收需要接入网络的无线节点上报的第一测量结果,根据接收到的第一测量结果,从位于该无线节点周围且能够为其他节点提供数据转发服务的各节点中,选择满足设定条件的节点,根据所选择的各节点到网络的路径,确定出该无线节点到网络的最优通信路径中包含的辅助节点,并通知给该无线节点和所选的各辅助节点,其中,第一测量结果是需要接入网络的无线节点分别对自身周围具有能够为其他节点提供数据转发服务的功能的各节点发出的信号进行测量得到的。
该方式下,若网络侧节点为需要接入网络的无线节点选择了采用有线链路与网络直接连接的有线节点作为与该无线节点直接连接的第一跳辅助节点(即选择了一个辅助节点),则该无线节点到网络的最优通信路径为单跳节点通信路径;若网络侧节点为需要接入网络的无线节点选择了至少两个辅助节点,则该无线节点到网络的最优通信路径为多跳节点通信路径。
方式B2、网络侧节点根据需要接入网络的无线节点周围的至少一个节点上报的第二测量结果,为该无线节点配置至少一个辅助节点,具体参见上述方式32。
该方式下,步骤61具体包括:网络侧节点接收需要接入网络的无线节点周围至少一个具有能够为其他节点提供数据转发服务的功能的节点上报的第二测量结果,根据接收到的第二测量结果,从上报第二测量结果的各节点中,选择满足设定条件的节点,根据所选择的各节点到网络的路径,确定该无线节点到网络的最优通信路径中包含的辅助节点,并通知给该无线节点和所选的各辅助节点,其中,第二测量结果是需要接入网络的无线节点周围具有能够为其他节点提供数据转发服务的功能的节点对该无线节点发出的探测信号进行测量得到的。
该方式下,若网络侧节点为需要接入网络的无线节点选择了采用有线链路与网络直接连接的有线节点作为与该无线节点直接连接的第一跳辅助节点(即选择了一个辅助节点),则该无线节点到网络的最优通信路径为单跳节点通信路径;若网络侧节点为该无线节点选择了至少两个辅助节点,则该无线节点到网络的最优通信路径为多跳节点通信路径。
方式B3、网络侧节点在接收到需要接入网络的无线节点周围至少一个具有能够为其他节点提供数据转发服务的功能的节点发送的第二请求消息后,为该无线节点确定到网络的最优通信路径,具体参见上述方式33。
该方式下,步骤61具体包括:网络侧节点接收需要接入网络的无线节点周围至少一个具有能够为其他节点提供数据转发服务的功能的节点发送的第二请求消息,从发送第二请求消息的各节点中,选择满足设定条件的节点,根据所选择的各节点到网络的路径,确定该无线节点到网络的最优通信路径中包含的辅助节点,并通知给该无线节点和所选的各 辅助节点,其中,第二请求消息用于通知网络侧节点发送该第二请求消息的节点能够作为所述无线节点接入网络的辅助节点。
当然,除了上述方式之外,若由需要接入网络的无线节点为自身确定到网络的最优通信路径,则网络侧节点确定该无线节点到网络的最优通信路径包括:网络侧节点接收需要接入网络的无线节点通知的该无线节点确定的自身到网络的最优通信路径,以确定该无线节点到网络的最优通信路径;或者,网络侧节点接收需要接入网络的无线节点所选择的第一跳辅助节点通知的该无线节点到网络的最优通信路径,以确定该无线节点到网络的最优通信路径;或者,网络侧节点接收需要接入网络的无线节点所选择的第一跳辅助节点通知的该无线节点通过该第一跳辅助节点到网络已建立的路径接入网络,以确定该无线节点到网络的最优通信路径。
基于上述任一方式,本发明实施例中所涉及的设定条件包括以下条件中的至少一种:
与无线节点之间的链路质量最优;
与无线节点之间的链路质量大于设定的质量阈值;
其回传能够容纳无线节点所传输的数据;
其回程链路传输时延最小;
其回程链路传输时延小于设定的时延阈值;
其回程链路传输速率不小于无线接口速率;
与无线节点之间的链路传输时延最小;
与无线节点之间的链路传输时延小于设定的时延阈值;
与无线节点之间的链路传输速率最大;以及,
与无线节点之间的链路传输速率大于设定的速率阈值。
基于上述任一实施例,在实施中,该方法还包括:网络侧节点为需要接入网络的无线节点到网络的最优通信路径中直接连接的节点之间的通信配置资源,具体包括以下三种方式:
第一种方式、网络侧节点预先为需要接入网络的无线节点的最优通信路径中直接连接的节点之间的通信配置资源,并配置给该无线节点以及该最优通信路径中的至少一个辅助节点,具体参见上述方式一。
第二种方式、网络侧节点根据当前网络的资源使用情况,为需要接入网络的无线节点的最优通信路径中直接连接的节点之间的通信重新配置能够使用的资源,并通过资源配置信息配置给该无线节点以及该最优通信路径中的至少一个辅助节点,具体参见上述方式二。
第三种方式、网络侧节点根据当前网络的资源使用情况以及需要接入网络的无线节点的最优通信路径中各节点所需传输的数据量,为该最优通信路径中直接连接的节点之间的 通信配置资源,并通过资源配置信息配置给该无线节点以及该最优通信路径中的至少一个辅助节点,具体参见上述方式三。
基于上述三种方式中的任一方式,若该最优通信路径为单跳节点通信路径,则该最优通信路径中直接连接的节点为需要接入网络署的无线节点与其直接连接的第一跳辅助节点;若该最优通信路径为多跳节点通信路径,则该最优通信路径中直接连接的节点为需要接入网络的无线节点与其直接连接的第一跳辅助节点、第一跳辅助节点与其直接连接的第二跳辅助节点,依次类推。若该最优通信路径为多跳节点通信路径,且该最优通信路径中使用的是与需要接入网络的无线节点直接连接的第一跳辅助节点到网络已建立的路径,则网络侧节点可以为第一跳辅助节点到网络已建立的路径中各直接连接的节点之间的通信配置新的资源,也可以指示第一跳辅助节点到网络已建立的路径中各直接连接的节点之间通信时使用该路径的已有资源。
需要说明的是,上述三种方式可以单独使用,也可以组合使用,如先通过第一种方式为该最优通信路径静态配置资源,再通过第二种方式或第三种方式为该最优通信路径重新配置资源。
基于上述任一实施例,该方法还包括:
当网络侧节点需要向需要接入网络的无线节点发送下行数据时,根据该无线节点的最优通信路径,确定出与该无线节点直接连接的第一跳辅助节点,并将下行数据通过该第一跳辅助节点到网络的通道发送给该第一跳辅助节点,以使该第一跳辅助节点将下行数据转发给相应的无线节点。
该方式下,需要接入网络的无线节点的寻址方式采用通道代理的方式,网络侧节点在与需要接入网络的无线节点建立连接时,同时存储该无线节点的最优通信路径,从而确定该无线节点的数据均需要通过辅助节点进行中转。网络侧节点向该无线节点发送的下行数据,均先发送给该无线节点的最优通信路径中与该网络侧节点直接连接的辅助节点,并由该最优通信路径中的辅助节点转发给该无线节点。而对于该无线节点的上行数据,该无线节点先发送给该最优通信路径中与该无线节点直接连接的第一跳辅助节点,该第一跳辅助节点通过该最优通信路径转发给网络侧节点。
基于上述任一实施例,该方法还包括:
网络侧节点在接收到与需要接入网络的无线节点的最优通信路径中与该无线节点直接连接的第一跳辅助节点发送的通知消息后,重新确定该无线节点到网络的最优通信路径,该通知消息用于通知网络侧节点该第一跳辅助节点不能继续为该无线节点提供数据转发服务。
上述方法处理流程可以用软件程序实现,该软件程序可以存储在存储介质中,当存储的软件程序被调用时,执行上述方法步骤。
基于同一发明构思,本发明实施例还提供了一种无线节点,参见图7所示,该无线节点包括:
路径获取模块71,用于在自身所属的无线节点需要接入网络时,获取所述无线节点到网络的最优通信路径;
通信模块72,用于通过路径获取模块71获取到的最优通信路径,与网络进行通信;
其中,所述最优通信路径指示所述无线节点通过至少一个辅助节点接入网络,且所述至少一个辅助节点中至少有一个辅助节点为直接与网络连接的有线节点。
本发明实施例提供的无线节点可以是网络中新部署的无线节点,也可以是网络中已部署的无线节点需要重新接入网络,该无线节点获取到的最优通信路径指示该无线节点通过至少一个辅助节点接入网络,即该最优通信路径指示该无线节点通过至少一个辅助节点与网络侧节点(如宏站)进行通信。
本发明实施例所涉及的辅助节点为:至少满足具有能够为其他节点提供数据转发服务的功能且自身开启了该功能的节点。
其中,辅助节点可以是一个有线backhaul连接的节点(即有线节点,如有线小区),也可以是一个无线backhaul连接的节点(即无线节点,如无线小区),但该无线节点获取到的最优通信路径中所涉及到的至少一个辅助节点中至少有一个辅助节点为直接与网络连接的有线节点。
需要说明的是,路径获取模块71获取到的最优通信路径中所包含的至少一个辅助节点中,对于其中的有线节点,其与网络侧节点(如宏站)之间采取有线传输协议传输数据和信令;如果该至少一个辅助节点中包含无线节点,则该至少一个辅助节点中包含的无线节点也需要获取其与网络侧节点之间的通信路径,选出最优传输路径与网络侧节点进行通信,其中,该至少一个辅助节点中包含的无线节点可以采用自身到网络已建立的路径与网络侧节点进行通信,也可以重新选择至少一个辅助节点接入网络。
在实施中,路径获取模块71具体用于:
从自身所属的无线节点周围具有能够为其他节点提供数据转发服务的功能的节点中,选择一个节点作为该无线节点接入网络且与该无线节点直接连接的第一跳辅助节点,以确定所述无线节点到网络的最优通信路径为通过所述第一跳辅助节点接入网络,具体参见上述方式1,此处不再赘述;
或者,
根据预先配置的无线节点与辅助节点的对应关系,确定出自身所属的无线节点到网络的最优通信路径中所包含的至少一个辅助节点,以确定所述无线节点到网络的最优通信路径为通过该至少一个辅助节点接入网络,具体参见上述方式2,此处不再赘述;
或者,
接收网络侧节点通知的该网络侧节点为自身所属的无线节点选择的至少一个辅助节点,以确定该无线节点到网络的最优通信路径为通过该至少一个辅助节点接入网络,其中,网络侧节点根据获取到的与该无线节点接入网络相关的信息确定该无线节点到网络的最优通信路径,具体参见上述方式3,此处不再赘述。
上述任一方式确定出的最优通信路径中的第一跳辅助节点也可以是宏站。
在实施中,路径获取模块71从自身所属的无线节点周围具有能够为其他节点提供数据转发服务的功能的节点中,选择一个节点作为该无线节点接入网络且与该无线节点直接连接的第一跳辅助节点,包括:
从自身所属的无线节点周围具有能够为其他节点提供数据转发服务的功能的节点中,选择满足设定条件的节点作为该无线节点接入网络且与该无线节点直接连接的第一跳辅助节点,具体参见上述方式11,此处不再赘述;或者,
向自身所属的无线节点周围具有能够为其他节点提供数据转发服务的功能的节点发送第一请求消息,根据接收到的周围的至少一个具有能够为其他节点提供数据转发服务的功能的节点返回的第一回复消息,选择一个节点作为该无线节点接入网络且与该无线节点直接连接的第一跳辅助节点,其中,所述第一请求消息用于请求通过接收到该第一请求消息的节点接入网络,所述第一回复消息用于通知所述无线节点发送该第一回复消息的节点是否能够作为所述无线节点接入网络的辅助节点,具体参见上述方式12,此处不再赘述。
需要说明的是,路径获取模块71确定出自身所属的无线节点到网络的最优通信路径后,可将该最优通信路径通知给网络侧节点;也可以由路径获取模块71所选择的第一跳辅助节点将该最优通信路径通知给网络侧节点,或者,该第一跳辅助节点通知网络侧节点该无线节点通过该第一跳辅助节点到网络已建立的路径接入网络。
在实施中,路径获取模块71还用于:
在接收到网络侧节点通知的该网络侧节点为自身所属的无线节点选择的至少一个辅助节点之前,针对周围具有能够为其他节点提供数据转发服务的功能的节点,对该节点发出的信号进行测量,并将测量得到的第一测量结果上报给网络侧节点,以请求网络侧节点为该无线节点确定最优通信路径;或者,
在接收到网络侧节点通知的该网络侧节点为自身所属的无线节点选择的至少一个辅助节点之前,针对周围具有能够为其他节点提供数据转发服务的功能的节点,对该节点发出的信号进行测量,并将测量得到的第一测量结果中满足设定门限的第一测量结果上报给网络侧节点,以请求网络侧节点为该无线节点确定最优通信路径。
基于上述任一实施例,路径获取模块71根据以下方式确定周围具有能够为其他节点提供数据转发服务的功能的节点:
接收到任一节点发送的携带有指示信息的消息后,确定发送所述指示信息的节点具有 能够为其他节点提供数据转发服务的功能,所述指示信息用于表示具有能够为其他节点提供数据转发服务的功能;或者,
向周围的各节点发送第一消息,以及,在接收到任一节点返回的第二消息时,确定发送所述第二消息的节点具有能够为其他节点提供数据转发服务的功能,其中,所述第一消息用于请求周围的各节点中具有能够为其他节点提供数据转发服务的功能的节点返回第二消息。
进一步,路径获取模块71还用于:
在接收到网络侧节点通知的该网络侧节点为自身所属的无线节点选择的至少一个辅助节点之前,向周围的节点发送探测信号,其中,该无线节点周围的节点在接收到所述探测信号后,对所述探测信号进行测量,并将测量得到的第二测量结果或测量得到的第二测量结果中满足设定门限的第二测量结果上报给网络侧节点,以请求网络侧节点为该无线节点确定最优通信路径;或者,
在接收到网络侧节点通知的该网络侧节点为自身所属的无线节点选择的至少一个辅助节点之前,向周围具有能够为其他节点提供数据转发服务的功能的节点发送第一请求消息,其中,所述第一请求消息用于请求通过接收到该第一请求消息的节点接入网络,且接收到所述第一请求消息的节点在确定出自身能够作为该无线节点接入网络的辅助节点时,向网络侧节点发送第二请求消息,所述第二请求消息用于通知网络侧节点发送该第二请求消息的节点能够作为该无线节点接入网络的辅助节点。
基于上述任一实施例,通信模块72具体用于:
从网络侧节点预先配置的信息中,获取网络侧节点为所述最优通信路径中自身所属的无线节点与其直接连接的第一跳辅助节点之间的通信配置的资源,并使用网络侧节点配置的资源与所述第一跳辅助节点进行通信,具体参见上述方式一,此处不再赘述;或者,
接收网络侧节点发送的资源配置信息,以获取网络侧节点为所述最优通信路径中自身所属的无线节点与其直接连接的第一跳辅助节点之间的通信配置的资源,并使用网络侧节点重新配置的资源与所述第一跳辅助节点进行通信,具体参见上述方式二,此处不再赘述;或者,
向网络侧节点上报自身所属的无线节点所需传输的数据量;以及接收网络侧节点发送的资源配置信息,获取网络侧节点为所述最优通信路径中该无线节点与其直接连接的第一跳辅助节点当前的通信配置的资源,并使用网络侧节点配置的资源向所述第一跳辅助节点发送所需传输的数据,具体参见上述方式三,此处不再赘述;或者,
通过和所述最优通信路径中与自身所属的无线节点直接连接的第一跳辅助节点进行协商,确定出与所述第一跳辅助节点进行通信时所使用的资源,具体参见上述方式四,此处不再赘述。
基于上述任一实施例,通信模块72具体用于:
将需要发送给网络侧节点的上行数据,发送给所述最优通信路径中与自身所属的直接连接的第一跳辅助节点,其中,所述第一跳辅助节点根据本地保存的自身到网络的通道与自身到该无线节点的通道之间的映射关系,将所述上行数据通过自身到网络的通道传输给相应的网络侧节点;
接收所述最优通信路径中与自身所属的无线节点直接连接的第一跳辅助节点发送的来自网络侧节点的下行数据,其中,所述第一跳辅助节点在接收到网络发送的下行数据时,根据本地保存的自身到网络的通道与自身到该无线节点的通道的映射关系,确定出所述下行数据对应的无线节点,并将所述下行数据转发给所确定的无线节点。
基于上述任一实施例,路径获取模块72还用于:
当确定所述最优通信路径中与自身所属的无线节点直接连接的第一跳辅助节点之间的链路质量低于设定阈值时,断开与所述第一跳辅助节点的连接,并重新选择新的最优通信路径接入网络;或者,
在接收到所述最优通信路径中与自身所属的无线节点直接连接第一跳辅助节点发送的通知消息后,断开与所述第一跳辅助节点的连接,并重新选择新的最优通信路径接入网络,所述通知消息用于通知该无线节点该第一跳辅助节点不能继续为该无线节点提供数据转发服务。
基于同一发明构思,本发明实施例还提供了一种网络侧节点,参见图8所示,该网络侧节点包括:
第一处理模块81,用于确定任一无线节点需要接入网络;
第二处理模块82,用于确定所述无线节点到网络的最优通信路径,其中,所述最优通信路径指示所述无线节点通过至少一个辅助节点与网络进行通信,且该至少一个辅助节点中至少有一个辅助节点为直接与网络连接的有线节点。
本发明实施例中的网络侧节点可以为起OAM作用的实体、宏站,也可以为网络侧控制节点,如MME、SGW、PGW等。
在实施中,第二处理模块82具体用于:
采用预先测量的方式,从位于所述无线节点周围且能够为其他节点提供数据转发服务的各节点中,选择满足设定条件的节点,并根据所选择的各节点到网络的路径,确定出所述无线节点到网络的最优通信路径中包含的至少一个辅助节点,并将所述无线节点与所选的至少一个辅助节点的对应关系分别配置给所述无线节点和所选的各辅助节点,具体参见上述方式A,此处不再赘述;
或者,
根据获取到的与所述无线节点接入网络相关的信息,确定所述无线节点到网络的最优 通信路径,具体参见上述方式B,此处不再赘述。
进一步,第二处理模块82根据获取到的与所述无线节点接入网络相关的信息,确定所述无线节点到网络的最优通信路径,包括:
接收所述无线节点上报的第一测量结果,根据接收到的第一测量结果,从位于所述无线节点周围且能够为其他节点提供数据转发服务的各节点中,选择满足设定条件的节点,根据所选择的各节点到网络的路径,确定出所述无线节点到网络的最优通信路径中包含的辅助节点,并通知给所述无线节点和所选的各辅助节点,所述第一测量结果是所述无线节点分别对自身周围具有能够为其他节点提供数据转发服务的功能的各节点发出的信号进行测量得到的,具体参见上述方式B1,此处不再赘述;或者,
接收所述无线节点周围至少一个具有能够为其他节点提供数据转发服务的功能的节点上报的第二测量结果,根据接收到的第二测量结果,从上报所述第二测量结果的各节点中,选择满足设定条件的节点,根据所选择的各节点到网络的路径,确定所述无线节点到网络的最优通信路径中包含的辅助节点,并通知给所述无线节点和所选的各辅助节点,所述第二测量结果是所述无线节点周围具有能够为其他节点提供数据转发服务的功能的节点对所述无线节点发出的探测信号进行测量得到的,具体参见上述方式B2,此处不再赘述;或者,
接收所述无线节点周围至少一个具有能够为其他节点提供数据转发服务的功能的节点发送的第二请求消息,从发送所述第二请求消息的各节点中,选择满足设定条件的节点,根据所选择的各节点到网络的路径,确定所述无线节点到网络的最优通信路径中包含的辅助节点,并通知给所述无线节点和所选的各辅助节点,其中,所述第二请求消息用于通知网络侧节点发送该第二请求消息的节点能够作为所述无线节点接入网络的辅助节点,具体参见上述方式B3,此处不再赘述。
当然,除了上述方式之外,若由需要接入网络的无线节点为自身确定到网络的最优通信路径,则第二处理模块82确定该无线节点到网络的最优通信路径包括:接收需要接入网络的无线节点通知的该无线节点确定的自身到网络的最优通信路径,以确定该无线节点到网络的最优通信路径;或者,接收需要接入网络的无线节点所选择的第一跳辅助节点通知的该无线节点到网络的最优通信路径,以确定该无线节点到网络的最优通信路径;或者,接收需要接入网络的无线节点所选择的第一跳辅助节点通知的该无线节点通过该第一跳辅助节点到网络已建立的路径接入网络,以确定该无线节点到网络的最优通信路径。
基于上述任一实施例,该网络侧节点还包括第三处理模块83,用于:
预先为所述最优通信路径中直接连接的节点之间的通信配置资源,并配置给所述无线节点以及所述最优通信路径中的至少一个辅助节点,具体参见上述第一种方式,此处不再赘述;或者,
根据当前网络的资源使用情况,为所述最优通信路径中直接连接的节点之间的通信重新配置能够使用的资源,并通过资源配置信息配置给所述无线节点以及所述最优通信路径中的至少一个辅助节点,具体参见上述第二种方式,此处不再赘述;或者,
根据当前网络的资源使用情况以及所述最优通信路径中各节点所需传输的数据量,为所述最优通信路径中直接连接的节点之间的通信配置资源,并通过资源配置信息配置给所述无线节点以及所述最优通信路径中的至少一个辅助节点,具体参见上述第三种方式,此处不再赘述。
需要说明的是,上述三种方式可以单独使用,也可以组合使用,如先通过第一种方式为该最优通信路径静态配置资源,再通过第二种方式或第三种方式为该最优通信路径重新配置资源。
基于上述任一实施例,该网络侧节点还包括第四处理模块84,用于:
当需要向所述无线节点发送下行数据时,根据所述最优通信路径,确定出与所述无线节点直接连接的第一跳辅助节点,并将所述下行数据通过所述第一跳辅助节点到网络的通道发送给所述第一跳辅助节点,以使所述第一跳辅助节点将所述下行数据转发给所述无线节点。
基于上述任一实施例,第二处理模块82还用于:
在接收到所述最优通信路径中与所述无线节点直接连接的第一跳辅助节点发送的通知消息后,重新确定所述无线节点到网络的最优通信路径,所述通知消息用于通知网络侧节点该第一跳辅助节点不能继续为所述无线节点提供数据转发服务。
下面结合优选的硬件结构,对本发明实施例提供的需要接入网络的无线节点的结构、处理方式进行说明。
如图9所示,该无线节点包括收发信机91、以及与该收发信机91连接的至少一个处理器92,其中:
处理器92被配置用于在自身所属的无线节点需要接入网络时,获取所述无线节点到网络的最优通信路径;以及,通过获取到的最优通信路径,与网络进行通信;
其中,所述最优通信路径指示所述无线节点通过至少一个辅助节点接入网络,且所述至少一个辅助节点中至少有一个辅助节点为直接与网络连接的有线节点。
需要说明的是,处理器92获取到的最优通信路径中所包含的至少一个辅助节点中,对于其中的有线节点,其与网络侧节点(如宏站)之间采取有线传输协议传输数据和信令;如果该至少一个辅助节点中包含无线节点,则该至少一个辅助节点中包含的无线节点也需要获取其与网络侧节点之间的通信路径,选出最优传输路径与网络侧节点进行通信,其中,该至少一个辅助节点中包含的无线节点可以采用自身到网络已建立的路径与网络侧节点进行通信,也可以重新选择至少一个辅助节点接入网络。
在实施中,处理器92被配置具体用于:
从自身所属的无线节点周围具有能够为其他节点提供数据转发服务的功能的节点中,选择一个节点作为该无线节点接入网络且与该无线节点直接连接的第一跳辅助节点,以确定该无线节点到网络的最优通信路径为通过所述第一跳辅助节点接入网络,具体参见上述方式1,此处不再赘述;
或者,
根据预先配置的无线节点与辅助节点的对应关系,确定出自身所属的无线节点到网络的最优通信路径中所包含的至少一个辅助节点,以确定该无线节点到网络的最优通信路径为通过该至少一个辅助节点接入网络,具体参见上述方式2,此处不再赘述;
或者,
根据收发信机91接收到的网络侧节点通知的该网络侧节点为自身所属的无线节点选择的至少一个辅助节点,以确定该无线节点到网络的最优通信路径,为通过该至少一个辅助节点接入网络,其中,网络侧节点根据获取到的与该无线节点接入网络相关的信息确定该无线节点到网络的最优通信路径,具体参见上述方式3,此处不再赘述。
上述任一方式所确定出的最优通信路径中的第一跳辅助节点也可以是宏站。
在实施中,处理器92从自身所属的无线节点周围具有能够为其他节点提供数据转发服务的功能的节点中,选择一个节点作为该无线节点接入网络且与该无线节点直接连接的第一跳辅助节点,包括:
从自身所属的无线节点周围具有能够为其他节点提供数据转发服务的功能的节点中,选择满足设定条件的节点作为该无线节点接入网络且与该无线节点直接连接的第一跳辅助节点,具体参见上述方式11,此处不再赘述;或者,
触发收发信机91向自身所属的无线节点周围具有能够为其他节点提供数据转发服务的功能的节点发送第一请求消息,根据收发信机91接收到的周围的至少一个具有能够为其他节点提供数据转发服务的功能的节点返回的第一回复消息,选择一个节点作为该无线节点接入网络且与该无线节点直接连接的第一跳辅助节点,其中,所述第一请求消息用于请求通过接收到该第一请求消息的节点接入网络,所述第一回复消息用于通知所述无线节点发送该第一回复消息的节点是否能够作为所述无线节点接入网络的辅助节点,具体参见上述方式12,此处不再赘述。
需要说明的是,处理器92确定出自身所属的无线节点到网络的最优通信路径后,可触发收发信机91将该最优通信路径通知给网络侧节点;也可以由处理器92所选择的第一跳辅助节点将该最优通信路径通知给网络侧节点,或者,该第一跳辅助节点通知网络侧节点该无线节点通过该第一跳辅助节点到网络已建立的路径接入网络。
在实施中,处理器92还被配置用于:
在收发信机91接收到网络侧节点通知的该网络侧节点为自身所属的无线节点选择的至少一个辅助节点之前,针对周围具有能够为其他节点提供数据转发服务的功能的节点,对该节点发出的信号进行测量,并触发收发信机91将测量得到的第一测量结果上报给网络侧节点,以请求网络侧节点为该无线节点确定最优通信路径;或者,
在收发信机91接收到网络侧节点通知的该网络侧节点为自身所属的无线节点选择的至少一个辅助节点之前,针对周围具有能够为其他节点提供数据转发服务的功能的节点,对该节点发出的信号进行测量,并触发收发信机91将测量得到的第一测量结果中满足设定门限的第一测量结果上报给网络侧节点,以请求网络侧节点为该无线节点确定最优通信路径。
基于上述任一实施例,处理器92根据以下方式确定周围具有能够为其他节点提供数据转发服务的功能的节点:
在收发信机91接收到任一节点发送的携带有指示信息的消息后,确定发送所述指示信息的节点具有能够为其他节点提供数据转发服务的功能,所述指示信息用于表示具有能够为其他节点提供数据转发服务的功能;或者,
在收发信机91接收到任一节点返回的第二消息时,确定发送所述第二消息的节点具有能够为其他节点提供数据转发服务的功能,其中,收发信机91向周围的各节点发送第一消息,所述第一消息用于请求周围的各节点中具有能够为其他节点提供数据转发服务的功能的节点返回第二消息。
进一步,收发信机91还被配置用于:
在接收到网络侧节点通知的该网络侧节点为自身所属的无线节点选择的至少一个辅助节点之前,向周围的节点发送探测信号,其中,该无线节点周围的节点在接收到所述探测信号后,对所述探测信号进行测量,并将测量得到的第二测量结果或测量得到的第二测量结果中满足设定门限的第二测量结果上报给网络侧节点,以请求网络侧节点为该无线节点确定最优通信路径;或者,
在接收到网络侧节点通知的该网络侧节点为自身所属的无线节点选择的至少一个辅助节点之前,向周围具有能够为其他节点提供数据转发服务的功能的节点发送第一请求消息,其中,所述第一请求消息用于请求通过接收到该第一请求消息的节点接入网络,且接收到所述第一请求消息的节点在确定出自身能够作为该无线节点接入网络的辅助节点时,向网络侧节点发送第二请求消息,所述第二请求消息用于通知网络侧节点发送该第二请求消息的节点能够作为该无线节点接入网络的辅助节点。
基于上述任一实施例,处理器92被配置具体用于:
从网络侧节点预先配置的信息中,获取网络侧节点为所述最优通信路径中自身所属的无线节点与其直接连接的第一跳辅助节点之间的通信配置的资源,并使用网络侧节点配置 的资源与所述第一跳辅助节点进行通信,具体参见上述方式一,此处不再赘述;或者,
根据收发信机91接收到的网络侧节点发送的资源配置信息,获取网络侧节点为所述最优通信路径中自身所属的无线节点与其直接连接的第一跳辅助节点之间的通信配置的资源,并使用网络侧节点重新配置的资源与所述第一跳辅助节点进行通信,具体参见上述方式二,此处不再赘述;或者,
根据收发信机91接收到的网络侧节点发送的资源配置信息,获取网络侧节点为所述最优通信路径中该无线节点与其直接连接的第一跳辅助节点当前的通信配置的资源,并使用网络侧节点配置的资源向所述第一跳辅助节点发送所需传输的数据,其中,收发信机91向网络侧节点上报自身所属的无线节点所需传输的数据量,具体参见上述方式三,此处不再赘述;或者,
通过和所述最优通信路径中与自身所属的无线节点直接连接的第一跳辅助节点进行协商,确定出与所述第一跳辅助节点进行通信时所使用的资源,具体参见上述方式四,此处不再赘述。
基于上述任一实施例,收发信机91被配置具体用于:
将需要发送给网络侧节点的上行数据,发送给所述最优通信路径中与自身所属的直接连接的第一跳辅助节点,其中,所述第一跳辅助节点根据本地保存的自身到网络的通道与自身到该无线节点的通道之间的映射关系,将所述上行数据通过自身到网络的通道传输给相应的网络侧节点;
接收所述最优通信路径中与自身所属的无线节点直接连接的第一跳辅助节点发送的来自网络侧节点的下行数据,其中,所述第一跳辅助节点在接收到网络发送的下行数据时,根据本地保存的自身到网络的通道与自身到该无线节点的通道的映射关系,确定出所述下行数据对应的无线节点,并将所述下行数据转发给所确定的无线节点。
基于上述任一实施例,处理器92还被配置用于:
当确定所述最优通信路径中与自身所属的无线节点直接连接的第一跳辅助节点之间的链路质量低于设定阈值时,断开与所述第一跳辅助节点的连接,并重新选择新的最优通信路径接入网络;或者,
在收发信机91接收到所述最优通信路径中与自身所属的无线节点直接连接第一跳辅助节点发送的通知消息后,断开与所述第一跳辅助节点的连接,并重新选择新的最优通信路径接入网络,所述通知消息用于通知该无线节点该第一跳辅助节点不能继续为该无线节点提供数据转发服务。
下面结合优选的硬件结构,对本发明实施例提供的网络侧节点的结构、处理方式进行说明。
如图10所示,该网络侧节点包括收发信机101、以及与该收发信机101连接的至少一 个处理器102,其中:
处理器102被配置用于:在确定任一无线节点需要接入网络后,确定所述无线节点到网络的最优通信路径,其中,所述最优通信路径指示所述无线节点通过至少一个辅助节点与网络进行通信,且该至少一个辅助节点中至少有一个辅助节点为直接与网络连接的有线节点。
本发明实施例中的网络侧节点可以为起OAM作用的实体、宏站,也可以为网络侧控制节点,如MME、SGW、PGW等。
在实施中,处理器102被配置具体用于:
采用预先测量的方式,从位于所述无线节点周围且能够为其他节点提供数据转发服务的各节点中,选择满足设定条件的节点,并根据所选择的各节点到网络的路径,确定出所述无线节点到网络的最优通信路径中包含的至少一个辅助节点,并将所述无线节点与所选的至少一个辅助节点的对应关系分别配置给所述无线节点和所选的各辅助节点,具体参见上述方式A,此处不再赘述;
或者,
根据获取到的与所述无线节点接入网络相关的信息,确定所述无线节点到网络的最优通信路径,具体参见上述方式B,此处不再赘述。
进一步,处理器102根据获取到的与所述无线节点接入网络相关的信息,确定所述无线节点到网络的最优通信路径,包括:
根据收发信机101接收到的所述无线节点上报的第一测量结果,从位于所述无线节点周围且能够为其他节点提供数据转发服务的各节点中,选择满足设定条件的节点,根据所选择的各节点到网络的路径,确定出所述无线节点到网络的最优通信路径中包含的辅助节点,并通知给所述无线节点和所选的各辅助节点,所述第一测量结果是所述无线节点分别对自身周围具有能够为其他节点提供数据转发服务的功能的各节点发出的信号进行测量得到的,具体参见上述方式B1,此处不再赘述;或者,
根据收发信机101接收到的所述无线节点周围至少一个具有能够为其他节点提供数据转发服务的功能的节点上报的第二测量结果,从上报所述第二测量结果的各节点中,选择满足设定条件的节点,根据所选择的各节点到网络的路径,确定所述无线节点到网络的最优通信路径中包含的辅助节点,并通知给所述无线节点和所选的各辅助节点,所述第二测量结果是所述无线节点周围具有能够为其他节点提供数据转发服务的功能的节点对所述无线节点发出的探测信号进行测量得到的,具体参见上述方式B2,此处不再赘述;或者,
根据收发信机101接收到的所述无线节点周围至少一个具有能够为其他节点提供数据转发服务的功能的节点发送的第二请求消息,从发送所述第二请求消息的各节点中,选择满足设定条件的节点,根据所选择的各节点到网络的路径,确定所述无线节点到网络的最 优通信路径中包含的辅助节点,并通知给所述无线节点和所选的各辅助节点,其中,所述第二请求消息用于通知网络侧节点发送该第二请求消息的节点能够作为所述无线节点接入网络的辅助节点,具体参见上述方式B3,此处不再赘述。
当然,除了上述方式之外,若由需要接入网络的无线节点为自身确定到网络的最优通信路径,则处理器102确定该无线节点到网络的最优通信路径包括:根据收发信机101接收到的来自需要接入网络的无线节点通知的该无线节点确定的自身到网络的最优通信路径,确定该无线节点到网络的最优通信路径;或者,根据收发信机101接收到的来自需要接入网络的无线节点所选择的第一跳辅助节点通知的该无线节点到网络的最优通信路径,确定该无线节点到网络的最优通信路径;或者,根据收发信机101接收到的需要接入网络的无线节点所选择的第一跳辅助节点通知的该无线节点通过该第一跳辅助节点到网络已建立的路径接入网络,确定该无线节点到网络的最优通信路径。
基于上述任一实施例,处理器102还被配置用于:
预先为所述最优通信路径中直接连接的节点之间的通信配置资源,并配置给所述无线节点以及所述最优通信路径中的至少一个辅助节点,具体参见上述第一种方式,此处不再赘述;或者,
根据当前网络的资源使用情况,为所述最优通信路径中直接连接的节点之间的通信重新配置能够使用的资源,并通过资源配置信息配置给所述无线节点以及所述最优通信路径中的至少一个辅助节点,具体参见上述第二种方式,此处不再赘述;或者,
根据当前网络的资源使用情况以及所述最优通信路径中各节点所需传输的数据量,为所述最优通信路径中直接连接的节点之间的通信配置资源,并通过资源配置信息配置给所述无线节点以及所述最优通信路径中的至少一个辅助节点,具体参见上述第三种方式,此处不再赘述。
需要说明的是,上述三种方式可以单独使用,也可以组合使用,如先通过第一种方式为该最优通信路径静态配置资源,再通过第二种方式或第三种方式为该最优通信路径重新配置资源。
基于上述任一实施例,处理器102还被配置用于:
当需要向所述无线节点发送下行数据时,根据所述最优通信路径,确定出与所述无线节点直接连接的第一跳辅助节点,并将所述下行数据通过所述第一跳辅助节点到网络的通道发送给所述第一跳辅助节点,以使所述第一跳辅助节点将所述下行数据转发给所述无线节点。
基于上述任一实施例,处理器102还被配置用于:
在收发信机101接收到所述最优通信路径中与所述无线节点直接连接的第一跳辅助节点发送的通知消息后,重新确定所述无线节点到网络的最优通信路径,所述通知消息用于 通知网络侧节点该第一跳辅助节点不能继续为所述无线节点提供数据转发服务。
本领域内的技术人员应明白,本发明的实施例可提供为方法、系统、或计算机程序产品。因此,本发明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,本发明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、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
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。
尽管已描述了本发明的优选实施例,但本领域内的技术人员一旦得知了基本创造性概念,则可对这些实施例作出另外的变更和修改。所以,所附权利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。
显然,本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样,倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内,则本发明也意图包含这些改动和变型在内。

Claims (32)

  1. 一种通信路径的确定方法,其特征在于,该方法包括:
    无线节点在需要接入网络时,获取自身到网络的最优通信路径;
    所述无线节点通过获取到的最优通信路径,与网络进行通信;
    其中,所述最优通信路径指示所述无线节点通过至少一个辅助节点接入网络,且所述至少一个辅助节点中至少有一个辅助节点为直接与网络连接的有线节点。
  2. 如权利要求1所述的方法,其特征在于,所述无线节点在需要接入网络时,获取自身到网络的最优通信路径,包括:
    所述无线节点从自身周围具有能够为其他节点提供数据转发服务的功能的节点中,选择一个节点作为所述无线节点接入网络且与所述无线节点直接连接的第一跳辅助节点,以确定自身到网络的最优通信路径为通过所述第一跳辅助节点接入网络;
    或者,
    所述无线节点根据预先配置的无线节点与辅助节点的对应关系,确定出自身到网络的最优通信路径中所包含的至少一个辅助节点,以确定自身到网络的最优通信路径为通过该至少一个辅助节点接入网络;
    或者,
    所述无线节点接收网络侧节点通知的该网络侧节点为所述无线节点选择的至少一个辅助节点,以确定自身到网络的最优通信路径为通过该至少一个辅助节点接入网络,其中,网络侧节点根据获取到的与所述无线节点接入网络相关的信息确定所述无线节点到网络的最优通信路径。
  3. 如权利要求2所述的方法,其特征在于,所述无线节点从自身周围具有能够为其他节点提供数据转发服务的功能的节点中,选择一个节点作为所述无线节点接入网络且与所述无线节点直接连接的第一跳辅助节点,包括:
    所述无线节点从自身周围具有能够为其他节点提供数据转发服务的功能的节点中,选择满足设定条件的节点作为所述无线节点接入网络且与所述无线节点直接连接的第一跳辅助节点;或者,
    所述无线节点向自身周围具有能够为其他节点提供数据转发服务的功能的节点发送第一请求消息,根据接收到的自身周围的至少一个具有能够为其他节点提供数据转发服务的功能的节点返回的第一回复消息,选择一个节点作为该无线节点接入网络且与该无线节点直接连接的第一跳辅助节点,其中,所述第一请求消息用于请求通过接收到该第一请求消息的节点接入网络,所述第一回复消息用于通知所述无线节点发送该第一回复消息的节点是否能够作为所述无线节点接入网络的辅助节点。
  4. 如权利要求3所述的方法,其特征在于,所述设定条件包括以下条件中的至少一 种:
    与所述无线节点之间的链路质量最优;
    与所述无线节点之间的链路质量大于设定的质量阈值;
    其回传能够容纳无线节点所传输的数据;
    与所述无线节点之间的链路传输时延最小;
    与所述无线节点之间的链路传输时延小于设定的时延阈值;
    其回程链路传输时延最小;
    其回程链路传输时延小于设定的时延阈值;
    其回程链路传输速率不小于无线接口速率;
    与所述无线节点之间的链路传输速率最大;以及,
    与所述无线节点之间的链路传输速率大于设定的速率阈值。
  5. 如权利要求2所述的方法,其特征在于,所述无线节点接收网络侧节点通知的该网络侧节点为所述无线节点选择的至少一个辅助节点之前,所述方法还包括:
    针对周围具有能够为其他节点提供数据转发服务的功能的节点,所述无线节点对该节点发出的信号进行测量,并将测量得到的第一测量结果上报给网络侧节点,以请求网络侧节点为所述无线节点确定最优通信路径;或者,
    针对周围具有能够为其他节点提供数据转发服务的功能的节点,所述无线节点对该节点发出的信号进行测量,并将测量得到的第一测量结果中满足设定门限的第一测量结果上报给网络侧节点,以请求网络侧节点为自身确定最优通信路径。
  6. 如权利要求2或3或5所述的方法,其特征在于,所述无线节点根据以下方式确定自身周围具有能够为其他节点提供数据转发服务的功能的节点:
    所述无线节点接收到任一节点发送的携带有指示信息的消息后,确定发送所述指示信息的节点具有能够为其他节点提供数据转发服务的功能,所述指示信息用于表示具有能够为其他节点提供数据转发服务的功能;或者,
    所述无线节点向自身周围的各节点发送第一消息,以及,在接收到任一节点返回的第二消息时,确定发送所述第二消息的节点具有能够为其他节点提供数据转发服务的功能,其中,所述第一消息用于请求周围的各节点中具有能够为其他节点提供数据转发服务的功能的节点返回第二消息。
  7. 如权利要求2所述的方法,其特征在于,所述无线节点接收网络侧节点通知的该网络侧节点为所述无线节点选择的至少一个辅助节点之前,所述方法还包括:
    所述无线节点向自身周围的节点发送探测信号,其中,所述无线节点周围的节点在接收到所述探测信号后,对所述探测信号进行测量,并将测量得到的第二测量结果或测量得到的第二测量结果中满足设定门限的第二测量结果上报给网络侧节点,以请求网络侧节点 为所述无线节点确定最优通信路径;或者,
    所述无线节点向自身周围具有能够为其他节点提供数据转发服务的功能的节点发送第一请求消息,其中,所述第一请求消息用于请求通过接收到该第一请求消息的节点接入网络,且接收到所述第一请求消息的节点在确定出自身能够作为所述无线节点接入网络的辅助节点时,向网络侧节点发送第二请求消息,所述第二请求消息用于通知网络侧节点发送该第二请求消息的节点能够作为所述无线节点接入网络的辅助节点。
  8. 如权利要求1~5、7任一项所述的方法,其特征在于,所述无线节点通过获取到的最优通信路径,与网络进行通信,包括:
    所述无线节点从网络侧节点预先配置的信息中,获取网络侧节点为所述最优通信路径中所述无线节点与其直接连接的第一跳辅助节点之间的通信配置的资源,并使用网络侧节点配置的资源与所述第一跳辅助节点进行通信;或者,
    所述无线节点接收网络侧节点发送的资源配置信息,以获取网络侧节点为所述最优通信路径中所述无线节点与其直接连接的第一跳辅助节点之间的通信配置的资源,并使用网络侧节点重新配置的资源与所述第一跳辅助节点进行通信;或者,
    所述无线节点向网络侧节点上报自身所需传输的数据量;以及所述无线节点接收网络侧节点发送的资源配置信息,获取网络侧节点为所述最优通信路径中所述无线节点与其直接连接的第一跳辅助节点当前的通信配置的资源,并使用网络侧节点配置的资源向所述第一跳辅助节点发送所需传输的数据;或者,
    所述无线节点通过和所述最优通信路径中与自身直接连接的第一跳辅助节点进行协商,确定出与所述第一跳辅助节点进行通信时所使用的资源。
  9. 如权利要求1~5、7任一项所述的方法,其特征在于,所述无线节点通过获取到的最优通信路径,与网络进行通信,包括:
    所述无线节点将需要发送给网络侧节点的上行数据,发送给所述最优通信路径中与自身直接连接的第一跳辅助节点,其中,所述第一跳辅助节点根据本地保存的自身到网络的通道与自身到所述无线节点的通道之间的映射关系,将所述上行数据通过自身到网络的通道传输给相应的网络侧节点;
    所述无线节点接收所述最优通信路径中与所述无线节点直接连接的第一跳辅助节点发送的来自网络侧节点的下行数据,其中,所述第一跳辅助节点在接收到网络发送的下行数据时,根据本地保存的自身到网络的通道与自身到所述无线节点的通道的映射关系,确定出所述下行数据对应的无线节点,并将所述下行数据转发给所确定的无线节点。
  10. 如权利要求1~5、7任一项所述的方法,其特征在于,所述方法还包括:
    当所述无线节点确定所述最优通信路径中与自身直接连接的第一跳辅助节点之间的链路质量低于设定阈值时,断开与所述第一跳辅助节点的连接,并重新选择新的最优通信 路径接入网络;或者,
    所述无线节点在接收到所述最优通信路径中与自身直接连接第一跳辅助节点发送的通知消息后,断开与所述第一跳辅助节点的连接,并重新选择新的最优通信路径接入网络,所述通知消息用于通知所述无线节点该第一跳辅助节点不能继续为所述无线节点提供数据转发服务。
  11. 一种通信路径的确定方法,其特征在于,该方法包括:
    网络侧节点确定任一无线节点需要接入网络;
    网络侧节点确定所述无线节点到网络的最优通信路径,其中,所述最优通信路径指示所述无线节点通过至少一个辅助节点与网络进行通信,且所述至少一个辅助节点中至少有一个辅助节点为直接与网络连接的有线节点。
  12. 如权利要求11所述的方法,其特征在于,网络侧节点确定所述无线节点到网络的最优通信路径,包括:
    网络侧节点采用预先测量的方式,从位于所述无线节点周围且能够为其他节点提供数据转发服务的各节点中,选择满足设定条件的节点,并根据所选择的各节点到网络的路径,确定出所述无线节点到网络的最优通信路径中包含的至少一个辅助节点,并将所述无线节点与所选的至少一个辅助节点的对应关系分别配置给所述无线节点和所选的各辅助节点;
    或者,
    网络侧节点根据获取到的与所述无线节点接入网络相关的信息,确定所述无线节点到网络的最优通信路径。
  13. 如权利要求12所述的方法,其特征在于,网络侧节点根据获取到的与所述无线节点接入网络相关的信息,确定所述无线节点到网络的最优通信路径,包括:
    网络侧节点接收所述无线节点上报的第一测量结果,根据接收到的第一测量结果,从位于所述无线节点周围且能够为其他节点提供数据转发服务的各节点中,选择满足设定条件的节点,根据所选择的各节点到网络的路径,确定出所述无线节点到网络的最优通信路径中包含的辅助节点,并通知给所述无线节点和所选的各辅助节点,其中,所述第一测量结果是所述无线节点分别对自身周围具有能够为其他节点提供数据转发服务的功能的各节点发出的信号进行测量得到的;或者,
    网络侧节点接收所述无线节点周围至少一个具有能够为其他节点提供数据转发服务的功能的节点上报的第二测量结果,根据接收到的第二测量结果,从上报所述第二测量结果的各节点中,选择满足设定条件的节点,根据所选择的各节点到网络的路径,确定所述无线节点到网络的最优通信路径中包含的辅助节点,并通知给所述无线节点和所选的各辅助节点,其中,所述第二测量结果是所述无线节点周围具有能够为其他节点提供数据转发服务的功能的节点对所述无线节点发出的探测信号进行测量得到的;或者,
    网络侧节点接收所述无线节点周围至少一个具有能够为其他节点提供数据转发服务的功能的节点发送的第二请求消息,从发送所述第二请求消息的各节点中,选择满足设定条件的节点,根据所选择的各节点到网络的路径,确定所述无线节点到网络的最优通信路径中包含的辅助节点,并通知给所述无线节点和所选的各辅助节点,其中,所述第二请求消息用于通知网络侧节点发送该第二请求消息的节点能够作为所述无线节点接入网络的辅助节点。
  14. 如权利要求12或13所述的方法,其特征在于,所述设定条件包括以下条件中的至少一种:
    与所述无线节点之间的链路质量最优;
    与所述无线节点之间的链路质量大于设定的质量阈值;
    其回传能够容纳无线节点所传输的数据;
    与所述无线节点之间的链路传输时延最小;
    与所述无线节点之间的链路传输时延小于设定的时延阈值;
    其回程链路传输时延最小;
    其回程链路传输时延小于设定的时延阈值;
    其回程链路传输速率不小于无线接口速率;
    与所述无线节点之间的链路传输速率最大;以及,
    与所述无线节点之间的链路传输速率大于设定的速率阈值。
  15. 如权利要求11~13任一项所述的方法,其特征在于,所述方法还包括:
    网络侧节点预先为所述最优通信路径中直接连接的节点之间的通信配置资源,并配置给所述无线节点以及所述最优通信路径中的至少一个辅助节点;或者,
    网络侧节点根据当前网络的资源使用情况,为所述最优通信路径中直接连接的节点之间的通信重新配置能够使用的资源,并通过资源配置信息配置给所述无线节点以及所述最优通信路径中的至少一个辅助节点;或者,
    网络侧节点根据当前网络的资源使用情况以及所述最优通信路径中各节点所需传输的数据量,为所述最优通信路径中直接连接的节点之间的通信配置资源,并通过资源配置信息配置给所述无线节点以及所述最优通信路径中的至少一个辅助节点。
  16. 如权利要求11~13任一项所述的方法,其特征在于,所述方法还包括:
    当网络侧节点需要向所述无线节点发送下行数据时,根据所述最优通信路径,确定出与所述无线节点直接连接的第一跳辅助节点,并将所述下行数据通过所述第一跳辅助节点到网络的通道发送给所述第一跳辅助节点,以使所述第一跳辅助节点将所述下行数据转发给所述无线节点。
  17. 如权利要求11~13任一项所述的方法,其特征在于,所述方法还包括:
    网络侧节点在接收到所述最优通信路径中与所述无线节点直接连接的第一跳辅助节点发送的通知消息后,重新确定所述无线节点到网络的最优通信路径,所述通知消息用于通知网络侧节点该第一跳辅助节点不能继续为所述无线节点提供数据转发服务。
  18. 一种无线节点,其特征在于,该无线节点包括:
    路径获取模块,用于在自身所属的无线节点需要接入网络时,获取所述无线节点到网络的最优通信路径;
    通信模块,用于通过所述路径获取模块获取到的最优通信路径,与网络进行通信;
    其中,所述最优通信路径指示所述无线节点通过至少一个辅助节点接入网络,且所述至少一个辅助节点中至少有一个辅助节点为直接与网络连接的有线节点。
  19. 如权利要求18所述的无线节点,其特征在于,所述路径获取模块具体用于:
    从所述无线节点周围具有能够为其他节点提供数据转发服务的功能的节点中,选择一个节点作为所述无线节点接入网络且与所述无线节点直接连接的第一跳辅助节点,以确定所述无线节点到网络的最优通信路径为通过所述第一跳辅助节点接入网络;
    或者,
    根据预先配置的无线节点与辅助节点的对应关系,确定出所述无线节点到网络的最优通信路径中所包含的至少一个辅助节点,以确定所述无线节点到网络的最优通信路径为通过该至少一个辅助节点接入网络;
    或者,
    接收网络侧节点通知的该网络侧节点为所述无线节点选择的至少一个辅助节点,以确定所述无线节点到网络的最优通信路径为通过该至少一个辅助节点接入网络,其中,网络侧节点根据获取到的与所述无线节点接入网络相关的信息确定所述无线节点到网络的最优通信路径。
  20. 如权利要求19所述的无线节点,其特征在于,所述路径获取模块从所述无线节点周围具有能够为其他节点提供数据转发服务的功能的节点中,选择一个节点作为所述无线节点接入网络且与所述无线节点直接连接的第一跳辅助节点,包括:
    从所述无线节点周围具有能够为其他节点提供数据转发服务的功能的节点中,选择满足设定条件的节点作为所述无线节点接入网络且与所述无线节点直接连接的第一跳辅助节点;或者,
    向所述无线节点周围具有能够为其他节点提供数据转发服务的功能的节点发送第一请求消息,根据接收到的周围的至少一个具有能够为其他节点提供数据转发服务的功能的节点返回的第一回复消息,选择一个节点作为该无线节点接入网络且与该无线节点直接连接的第一跳辅助节点,其中,所述第一请求消息用于请求通过接收到该第一请求消息的节点接入网络,所述第一回复消息用于通知所述无线节点发送该第一回复消息的节点是否能 够作为所述无线节点接入网络的辅助节点。
  21. 如权利要求19所述的无线节点,其特征在于,所述路径获取模块还用于:
    在接收到网络侧节点通知的该网络侧节点为所述无线节点选择的至少一个辅助节点之前,针对周围具有能够为其他节点提供数据转发服务的功能的节点,对该节点发出的信号进行测量,并将测量得到的第一测量结果上报给网络侧节点,以请求网络侧节点为所述无线节点确定最优通信路径;或者,
    在接收到网络侧节点通知的该网络侧节点为所述无线节点选择的至少一个辅助节点之前,针对周围具有能够为其他节点提供数据转发服务的功能的节点,对该节点发出的信号进行测量,并将测量得到的第一测量结果中满足设定门限的第一测量结果上报给网络侧节点,以请求网络侧节点为所述无线节点确定最优通信路径。
  22. 如权利要求19或20或21所述的无线节点,其特征在于,所述路径获取模块根据以下方式确定周围具有能够为其他节点提供数据转发服务的功能的节点:
    接收到任一节点发送的携带有指示信息的消息后,确定发送所述指示信息的节点具有能够为其他节点提供数据转发服务的功能,所述指示信息用于表示具有能够为其他节点提供数据转发服务的功能;或者,
    向周围的各节点发送第一消息,以及,在接收到任一节点返回的第二消息时,确定发送所述第二消息的节点具有能够为其他节点提供数据转发服务的功能,其中,所述第一消息用于请求周围的各节点中具有能够为其他节点提供数据转发服务的功能的节点返回第二消息。
  23. 如权利要求19所述的无线节点,其特征在于,所述路径获取模块还用于:
    在接收到网络侧节点通知的该网络侧节点为所述无线节点选择的至少一个辅助节点之前,向周围的节点发送探测信号,其中,所述无线节点周围的节点在接收到所述探测信号后,对所述探测信号进行测量,并将测量得到的第二测量结果或测量得到的第二测量结果中满足设定门限的第二测量结果上报给网络侧节点,以请求网络侧节点为所述无线节点确定最优通信路径;或者,
    在接收到网络侧节点通知的该网络侧节点为所述无线节点选择的至少一个辅助节点之前,向周围具有能够为其他节点提供数据转发服务的功能的节点发送第一请求消息,其中,所述第一请求消息用于请求通过接收到该第一请求消息的节点接入网络,且接收到所述第一请求消息的节点在确定出自身能够作为所述无线节点接入网络的辅助节点时,向网络侧节点发送第二请求消息,所述第二请求消息用于通知网络侧节点发送该第二请求消息的节点能够作为所述无线节点接入网络的辅助节点。
  24. 如权利要求18~21、23任一项所述的无线节点,其特征在于,所述通信模块具体用于:
    从网络侧节点预先配置的信息中,获取网络侧节点为所述最优通信路径中所述无线节点与其直接连接的第一跳辅助节点之间的通信配置的资源,并使用网络侧节点配置的资源与所述第一跳辅助节点进行通信;或者,
    接收网络侧节点发送的资源配置信息,以获取网络侧节点为所述最优通信路径中所述无线节点与其直接连接的第一跳辅助节点之间的通信配置的资源,并使用网络侧节点重新配置的资源与所述第一跳辅助节点进行通信;或者,
    向网络侧节点上报所述无线节点所需传输的数据量;以及接收网络侧节点发送的资源配置信息,获取网络侧节点为所述最优通信路径中所述无线节点与其直接连接的第一跳辅助节点当前的通信配置的资源,并使用网络侧节点配置的资源向所述第一跳辅助节点发送所需传输的数据;或者,
    通过和所述最优通信路径中与所述无线节点直接连接的第一跳辅助节点进行协商,确定出与所述第一跳辅助节点进行通信时所使用的资源。
  25. 如权利要求18~21、23任一项所述的无线节点,其特征在于,所述通信模块具体用于:
    将需要发送给网络侧节点的上行数据,发送给所述最优通信路径中与自身直接连接的第一跳辅助节点,其中,所述第一跳辅助节点根据本地保存的自身到网络的通道与自身到所述无线节点的通道之间的映射关系,将所述上行数据通过自身到网络的通道传输给相应的网络侧节点;
    接收所述最优通信路径中与所述无线节点直接连接的第一跳辅助节点发送的来自网络侧节点的下行数据,其中,所述第一跳辅助节点在接收到网络发送的下行数据时,根据本地保存的自身到网络的通道与自身到所述无线节点的通道的映射关系,确定出所述下行数据对应的无线节点,并将所述下行数据转发给所确定的无线节点。
  26. 如权利要求18~21、23任一项所述的无线节点,其特征在于,所述路径获取模块还用于:
    当确定出所述最优通信路径中与所述无线节点直接连接的第一跳辅助节点之间的链路质量低于设定阈值时,断开与所述第一跳辅助节点的连接,并重新选择新的最优通信路径接入网络;或者,
    在接收到所述最优通信路径中与所述无线节点直接连接第一跳辅助节点发送的通知消息后,断开与所述第一跳辅助节点的连接,并重新选择新的最优通信路径接入网络,所述通知消息用于通知所述无线节点该第一跳辅助节点不能继续为所述无线节点提供数据转发服务。
  27. 一种网络侧节点,其特征在于,该网络侧节点包括:
    第一处理模块,用于确定任一无线节点需要接入网络;
    第二处理模块,用于确定所述无线节点到网络的最优通信路径,其中,所述最优通信路径指示所述无线节点通过至少一个辅助节点与网络进行通信,且所述至少一个辅助节点中至少有一个辅助节点为直接与网络连接的有线节点。
  28. 如权利要求27所述的网络侧节点,其特征在于,所述第二处理模块具体用于:
    采用预先测量的方式,从位于所述无线节点周围且能够为其他节点提供数据转发服务的各节点中,选择满足设定条件的节点,并根据所选择的各节点到网络的路径,确定出所述无线节点到网络的最优通信路径中包含的至少一个辅助节点,并将所述无线节点与所选的至少一个辅助节点的对应关系分别配置给所述无线节点和所选的各辅助节点;
    或者,
    根据获取到的与所述无线节点接入网络相关的信息,确定所述无线节点到网络的最优通信路径。
  29. 如权利要求28所述的网络侧节点,其特征在于,所述第二处理模块根据获取到的与所述无线节点接入网络相关的信息,确定所述无线节点到网络的最优通信路径,包括:
    接收所述无线节点上报的第一测量结果,根据接收到的第一测量结果,从位于所述无线节点周围且能够为其他节点提供数据转发服务的各节点中,选择满足设定条件的节点,根据所选择的各节点到网络的路径,确定出所述无线节点到网络的最优通信路径中包含的辅助节点,并通知给所述无线节点和所选的各辅助节点,所述第一测量结果是所述无线节点分别对自身周围具有能够为其他节点提供数据转发服务的功能的各节点发出的信号进行测量得到的;或者,
    接收所述无线节点周围至少一个具有能够为其他节点提供数据转发服务的功能的节点上报的第二测量结果,根据接收到的第二测量结果,从上报所述第二测量结果的各节点中,选择满足设定条件的节点,根据所选择的各节点到网络的路径,确定所述无线节点到网络的最优通信路径中包含的辅助节点,并通知给所述无线节点和所选的各辅助节点,所述第二测量结果是所述无线节点周围具有能够为其他节点提供数据转发服务的功能的节点对所述无线节点发出的探测信号进行测量得到的;或者,
    接收所述无线节点周围至少一个具有能够为其他节点提供数据转发服务的功能的节点发送的第二请求消息,从发送所述第二请求消息的各节点中,选择满足设定条件的节点,根据所选择的各节点到网络的路径,确定所述无线节点到网络的最优通信路径中包含的辅助节点,并通知给所述无线节点和所选的各辅助节点,其中,所述第二请求消息用于通知网络侧节点发送该第二请求消息的节点能够作为所述无线节点接入网络的辅助节点。
  30. 如权利要求27~29任一项所述的网络侧节点,其特征在于,所述网络侧节点还包括第三处理模块,用于:
    预先为所述最优通信路径中直接连接的节点之间的通信配置资源,并配置给所述无线 节点以及所述最优通信路径中的至少一个辅助节点;或者,
    根据当前网络的资源使用情况,为所述最优通信路径中直接连接的节点之间的通信重新配置能够使用的资源,并通过资源配置信息配置给所述无线节点以及所述最优通信路径中的至少一个辅助节点;或者,
    根据当前网络的资源使用情况以及所述最优通信路径中各节点所需传输的数据量,为所述最优通信路径中直接连接的节点之间的通信配置资源,并通过资源配置信息配置给所述无线节点以及所述最优通信路径中的至少一个辅助节点。
  31. 如权利要求27~29任一项所述的网络侧节点,其特征在于,所述网络侧节点还包括第四处理模块,用于:
    当需要向所述无线节点发送下行数据时,根据所述最优通信路径,确定出与所述无线节点直接连接的第一跳辅助节点,并将所述下行数据通过所述第一跳辅助节点到网络的通道发送给所述第一跳辅助节点,以使所述第一跳辅助节点将所述下行数据转发给所述无线节点。
  32. 如权利要求27~19任一项所述的网络侧节点,其特征在于,所述第二处理模块还用于:
    在接收到所述最优通信路径中与所述无线节点直接连接的第一跳辅助节点发送的通知消息后,重新确定所述无线节点到网络的最优通信路径,所述通知消息用于通知网络侧节点该第一跳辅助节点不能继续为所述无线节点提供数据转发服务。
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