WO2017133230A1 - 一种传输路径的更新方法、终端和系统 - Google Patents

一种传输路径的更新方法、终端和系统 Download PDF

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Publication number
WO2017133230A1
WO2017133230A1 PCT/CN2016/097163 CN2016097163W WO2017133230A1 WO 2017133230 A1 WO2017133230 A1 WO 2017133230A1 CN 2016097163 W CN2016097163 W CN 2016097163W WO 2017133230 A1 WO2017133230 A1 WO 2017133230A1
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WO
WIPO (PCT)
Prior art keywords
terminal
link
transmission path
state
identifier
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Application number
PCT/CN2016/097163
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English (en)
French (fr)
Inventor
张晨璐
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宇龙计算机通信科技(深圳)有限公司
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Priority to US16/075,085 priority Critical patent/US11129063B2/en
Publication of WO2017133230A1 publication Critical patent/WO2017133230A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/23—Manipulation of direct-mode connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
    • H04W40/248—Connectivity information update
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/40—Connection management for selective distribution or broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/34—Modification of an existing route

Definitions

  • the present invention relates to the field of communications, and in particular, to a method, a terminal, and a system for updating a transmission path.
  • the existing mobility management method of the user equipment is: in the process of data transmission between the user equipment and the serving base station, the user equipment or the serving base station finds that the current Uu link does not meet the transmission requirement, and determines that the base station handover is required, the user The device or the serving base station triggers the cell handover procedure, and the user equipment switches the current serving base station to the base station with better Uu link quality.
  • the number of users increases and the density of deployed base stations increases, in order to optimize the use of spectrum resources, a communication mode between devices and devices occurs, and a communication mode between the base station and the base station occurs when the user equipment moves.
  • the available transmission path needs to be re-selected for service transmission. How to ensure that the available transmission path of the user equipment is updated is a problem currently studied.
  • a technical problem to be solved by the embodiments of the present invention is to provide a method, a terminal, and a system for updating a transmission path.
  • the available transmission paths of the terminal can be updated in a timely and accurate manner.
  • an embodiment of the present invention provides a method for updating a transmission path, including: detecting, by a terminal, a link state of a communication link with an adjacent network node; when the link state changes Determining, by the terminal, at least one other terminal associated with the terminal; the terminal transmitting, to the at least one other terminal, a first update indication message including a link identity and a link change identifier of the communication link, The first update indication message is used to indicate that each of the at least one other terminal updates the respective corresponding transmission path set according to the link identity identifier and the link change identifier.
  • the embodiment of the present invention further provides a method for updating a transmission path, including: terminal detection and a link state of a communication link between adjacent network nodes; when the link state changes, the terminal transmits an update including a link identity and a link change identifier of the communication link to a server Instructing the message; the server receiving the update indication message, acquiring at least one other terminal associated with the terminal; the server updating the terminal and the at least one other terminal according to the link identity and the link change identifier Corresponding respective transmission path sets, and respectively notifying the terminal and the at least one other terminal respectively the corresponding updated transmission path set; or the server forwarding the update indication message to the at least one other terminal,
  • the update indication message is used to indicate that each of the at least one other terminal updates the respective corresponding transmission path set according to the link identity identifier and the link change identifier.
  • the embodiment of the present invention provides a method for updating a transmission path, including: when the terminal triggers a service transmission, acquiring at least one other terminal that is associated; the terminal broadcasting a link state request message to the at least one other terminal, The link state request message is used to indicate that the at least one other terminal respectively detects a link state of a communication link with a neighboring network node, and returns a link state identifier and a chain of the communication link to the terminal. a link state response message of the road identity identifier; the terminal according to the link state response message received by the at least one other terminal, and according to the link state identifier and the link identity identifier included in the link state corresponding message Update the associated transport path collection.
  • the terminal When the terminal detects that the link state of the communication link between the adjacent network nodes changes, the terminal instructs the other terminal to update the identity of the communication link and the link change identifier to update the corresponding transmission path set.
  • the transmission path set of each terminal in the terminal network is kept up-to-date, so that the terminal can perform transmission path switching and data transmission according to the latest transmission path set, and provides reliability of service transmission.
  • FIG. 1 is a schematic flowchart of a method for updating a transmission path according to an embodiment of the present invention
  • FIG. 1b is a specific example diagram of a transmission path update method of FIG. 1a;
  • 2a is another schematic flowchart of a method for updating a transmission path according to an embodiment of the present invention
  • FIG. 2b is a specific example diagram of the transmission path update method of FIG. 2a;
  • FIG. 3 is still another schematic flowchart of a method for updating a transmission path according to an embodiment of the present invention
  • FIG. 4a is a schematic structural diagram of a terminal according to a first embodiment of the present invention.
  • 4b is a schematic structural diagram of a terminal according to a second embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a terminal according to a third embodiment of the present invention.
  • FIG. 5b is a schematic structural diagram of a terminal according to a fourth embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a communication system according to an embodiment of the present invention.
  • FIG. 1 is a schematic flowchart of a method for updating a transmission path according to an embodiment of the present invention.
  • the method includes:
  • the terminal detects a link state of a communication link with an adjacent network node.
  • the adjacent network node represents a network node with a hop count of 1 and the terminal may have one or more adjacent network nodes, the type of the network node may be a terminal or a base station, and the communication link represents two
  • the link state of the communication link is divided into an available state and an unavailable state, the available state indicates that the link quality parameter of the communication link satisfies the transmission requirement, and the unavailable state indicates the communication chain
  • the link quality parameter of the path does not meet the transmission requirement.
  • the link state of the communication link is unavailable, the extreme case is the disconnected state.
  • the link state of the communication link is unavailable, For the connection status.
  • the terminal determines all the adjacent network nodes, and the terminal may periodically detect the link state of the communication link with the adjacent network node, wherein the method for determining the adjacent network node by the terminal may be: the terminal acquires the pre-storage
  • the set of transmission paths associated with the terminal determines the adjacent network nodes according to the topological connection relationship of each transmission path in the transmission path set.
  • the transmission path set represents a set of all available transmission paths of a certain terminal, and the transmission path includes at least one communication link.
  • the terminal determines at least one other terminal associated with the terminal.
  • the terminal determines the associated at least one other terminal, and the determined method is also available according to the pre-stored method.
  • the set of transmission paths is determined.
  • the terminal sends, to the at least one other terminal, a first update indication message that includes a link identity and a link change identifier of the communication link, where the first update indication message is used to indicate that each of the at least one other terminal is in accordance with the link.
  • the identity identifier and the link change identifier update respective sets of transmission paths.
  • the link identity is used to uniquely indicate the identity of the communication link
  • the node identifiers of the two network nodes corresponding to the communication link may be used to represent the identity of the communication link.
  • two nodes of the communication link are The terminal 2 and the base station 3 can use the identifiers of the terminal 2 and the base station 3 to represent the link identity of the communication link between the terminal 2 and the base station 3; the link change identifier indicates the change trend of the link state of the communication link.
  • the terminal broadcasts the first update indication message including the link identity and the link change identifier of the communication link to the associated at least one other terminal, at least Each of the other terminals in the other terminal updates the respective corresponding transmission path set according to the link identity.
  • the method for updating the corresponding transmission path set may be: the other terminal acquires the current transmission path set, and determines that the link change identifier changes from the available state to the unavailable state, Querying the transmission path where the communication link identifier is located in the current transmission path set, deleting the queried transmission path; determining that the link change identifier is changed from the unavailable state to the available state, according to each transmission path in the current transmission path set The topology connection relationship is added with a new transmission path, and a new transmission path is added to the current transmission path set.
  • the terminal also needs to update the current transmission path set according to the communication link identifier and the link change identifier.
  • the update method may refer to the update method of other terminals, and details are not described herein again.
  • the terminal broadcasts the first update indication message to the at least one other terminal, if the communication link between the terminal and some other terminal of the at least one other terminal is unavailable, the terminal may indicate an available state with the other terminal. The other terminal forwards the first update indication message.
  • the determining, by the terminal, the at least one other terminal that is associated with the terminal includes:
  • the terminal acquires a pre-stored transmission path set, where the transmission path set includes at least one available transmission path, each transmission path includes at least one communication link, and is determined according to each communication link and network node corresponding to the available transmission path.
  • the server updates the topology connection relationship of the self-organizing network in real time.
  • the terminal can obtain the latest topology connection relationship of the self-organizing network from the server, and obtain at least one other terminal associated according to the topology connection relationship.
  • the method further includes:
  • the terminal updates the associated transmission path set according to the link identity identifier and the link change identifier included in the second update indication message.
  • the terminal when any one of the at least one other terminal associated with the terminal detects a link state transmission change of the communication link with the adjacent network node, transmitting, by the terminal, the link identity identifier and the link change identifier
  • the second update indication message in addition to sending the second update indication message to the terminal, also needs to send a second update indication message to other associated terminals.
  • the terminal updates the associated transmission path set according to the link identity and the link change identifier included in the second update indication message.
  • the set of transmission paths that are updated by the terminal according to the link identity identifier and the link change identifier included in the second update indication message includes:
  • the terminal parses the link identity identifier and the link change identifier included in the second update indication message;
  • the link change identifier indicates that the state is changed from the available state to the unavailable state, querying, in the set of transmission paths associated with the terminal, a transmission path that matches the link identity, and a set of transmission paths associated with the terminal Deleting the matched transmission path;
  • the communication link is in an unavailable state, indicating that the link quality parameter of the communication link does not meet the requirement.
  • the terminal periodically collects the link quality parameter of the communication link, and if the link quality parameter of the communication link is greater than the preset value, determining that the communication link is available, if the link quality parameter of the communication link is smaller than When the preset value is used, it is determined that the communication link is in an unavailable state; or, the terminal periodically collects multiple link quality parameters, and if multiple link quality parameters are greater than the first preset value, determining that the communication link is The available state, if multiple link quality parameters are smaller than the second preset value, determining that the communication link is unavailable, if multiple link quality parameters are distributed between the first preset value and the second preset value.
  • the plurality of link quality parameters include the first preset value or the second preset value, and further determine a rate of change of the plurality of link quality parameters, and if the rate of change is a positive value, determine the communication chain.
  • the path is available, and if the rate of change is negative, the communication link is determined to be unavailable.
  • the terminal parses the link identity identifier and the link change identifier included in the second update indication message.
  • the terminal queries the associated transmission path set. A transmission path that matches the link identity and removes the matching transmission path from the associated set of transmission paths.
  • the communication system includes 4 terminals and 3 base stations, and the terminal is assumed to be the terminal 1, and the other terminals associated with the terminal 1 are the terminal 2, the terminal 3, and the terminal 4.
  • the UE1 corresponds to the communication chain according to the link identity.
  • the two network nodes of the road are the terminal 4 and the base station 3.
  • the transmission path set associated with the UE1 includes four transmission paths, the transmission path 1: the terminal 1 - the base station 1, the transmission path 2: the terminal 1 - the terminal 2 - the base station 1, and the transmission Path 3: terminal 1 - terminal 3 - base station 2, transmission path 4: terminal 1 - terminal 3 - terminal 4 - base station 3, terminal 1 determines communication link: terminal 4 - base station 3 is unavailable state by available state, terminal 1
  • the transmission path set of the query is found to match the transmission path 4 therein, the terminal 1 deletes the transmission path 4, and the updated transmission path set of the terminal 1 only includes the transmission path 1, the transmission path 2, and the transmission path 3.
  • the terminal acquires the topology connection relationship of each transmission path included in the associated transmission path set, and determines the newly added transmission according to the link identity identifier and the topology connection relationship. Path and add the new transmission path to the collection of transmission paths associated with the terminal.
  • the terminal 1 determines that the two nodes of the communication link corresponding to the link identity are the terminal 2 and the base station 2, and the terminal 1 determines that the communication link between the terminal 2 and the base station 2 changes from the unavailable state to the available state.
  • the terminal 1 determines that the newly added transmission path of the terminal 1 is: terminal 1 - terminal 2 - base station 2 according to the topology connection relationship of the four transmission paths in the associated transmission path set, and the terminal 1 adds the newly added transmission path to the associated In the transmission path set, the updated transmission path set contains five transmission paths at this time.
  • the update method of the transmission path set associated with other terminals in the communication system refer to the above example, and no longer here. Said.
  • the method further includes:
  • the terminal switches to the target path for service transmission.
  • the target transmission path is determined from the associated transmission path set, the terminal determines the egress terminal and the egress base station corresponding to the target transmission path, and the terminal sends a handover request message to the egress terminal;
  • the message includes the feature information of the terminal.
  • the terminal receives the handover confirmation message returned by the egress terminal, the terminal completes the path switching operation according to the handover confirmation message.
  • the terminal receives the handover indication returned by the serving base station, the terminal completes the path switching operation according to the handover indication message.
  • the target path is one or more transmission paths.
  • the terminal when the terminal detects that the link state of the communication link between the adjacent network nodes changes, the terminal instructs the associated other terminal to update the identity of the communication link and the link change identifier update.
  • the respective transmission path sets enable the transmission path set of each terminal in the terminal network to be kept up-to-date, so that the terminal can perform transmission path switching and data transmission according to the latest transmission path set, and provides reliability of service transmission.
  • FIG. 2 is a schematic flowchart of a method for updating a transmission path according to an embodiment of the present invention.
  • the method includes:
  • the terminal detects a link state of a communication link with an adjacent network node.
  • the adjacent network node represents a network node with a hop count of 1 and the terminal may have one or more adjacent network nodes, the type of the network node may be a terminal or a base station, and the communication link represents two The channel between the network nodes for transmitting data, for example, the two nodes of the communication link are the terminal 2 and the base station 3.
  • the identifier of the terminal 2 and the base station 3 can be used to represent the communication link between the terminal 2 and the base station 3.
  • the transmission requirement is not met, wherein when the link state of the communication link is unavailable, the communication link is in an off state in an extreme case, and generally the connection is still connected even if the link state of the communication link is unavailable. status.
  • the terminal determines all the neighboring network nodes, and the terminal can periodically detect the link state of the communication link with the adjacent network node.
  • the method for the terminal to determine the adjacent network node may be: the terminal acquires the pre-stored Transmission path set, according to the transmission path set The topological connection relationship of each transmission path determines an adjacent network node.
  • the transmission path set represents a set of all available transmission paths of a certain terminal, and the transmission path includes at least one communication link.
  • the terminal sends an update indication message including a link identity and a link change identifier of the communication link to the server.
  • the link identity is used to uniquely indicate the identity of the communication link
  • the node identifiers of the two network nodes corresponding to the communication link may be used to indicate the identity of the communication link
  • the link change identifier indicates the chain of the communication link. The trend of the state of the road changes from the available state to the unavailable state or from the unavailable state to the usable state.
  • the terminal sends an update indication message including the link identity and the link change identifier of the communication link to the server.
  • the server receives the update indication message, and acquires at least one other terminal associated with the terminal.
  • the server receives the update indication message, and acquires at least one other terminal associated with the terminal according to the preset association relationship.
  • the server determines at least one other terminal associated with the terminal according to the topology connection relationship of each transmission path in the transmission path set associated with the terminal.
  • the server updates the transmission path set corresponding to the terminal and the at least one other terminal according to the link identity identifier and the link change identifier, and separately notify the terminal and the at least one other terminal respectively. Corresponding updated transmission path set; or
  • the server forwards the update indication message to the at least one other terminal, where the update indication message is used to indicate that each of the at least one other terminal is determined according to the link identity and the link change identifier. Update the respective corresponding transmission path sets.
  • the server updates the transmission path set corresponding to the terminal and the at least one other terminal according to the link identity identifier and the link change identifier included in the received update indication message, and respectively sends the update to the terminal and the at least one other terminal respectively.
  • the transmission path set may be: for any one of the terminal and the at least one other terminal, the method for the server to transmit the path set may be: the server acquires a current transmission path set associated with a terminal, and determines that the link change identifier indicates the communication link.
  • the current transmission path set is queried for the transmission path where the communication link identifier is located, and the queried transmission path is deleted; determining the link change identifier indicates that the unavailable state changes to
  • a new transmission path is obtained according to the topology connection relationship of each transmission path in the current transmission path set associated with the terminal, and is added in the current transmission path set. New transmission path.
  • the server after receiving the update indication message sent by the terminal, the server acts as a relay, and the server broadcasts the update indication message to at least one other terminal to reduce signaling of the terminal.
  • the resource is sent, where the server may be a network element in the core network that is independent or located in another network node, or a network element that is located in the access network independently or in another network node.
  • the server broadcasts an update indication message including a link identity and a link change identifier of the communication link to the at least one other terminal, and each of the at least one other terminal updates the respective corresponding transmission path set according to the link identity.
  • the method for updating the corresponding transmission path set may be: the other terminal acquires the current transmission path set associated with the terminal, and determines that the link change identifier indicates that the available state changes to the unavailable state. Querying the transmission path where the communication link identifier is located from the current transmission path set, and deleting the queried transmission path; determining that the link change identifier indicates that the unavailable state changes to the available state, according to each of the current transmission path sets The topology connection relationship of the transmission path is added with a new transmission path, and a new transmission path is added to the current transmission path set.
  • the terminal type of the terminal and at least one other terminal is a D2D terminal or a TSC terminal.
  • the server further updates the transmission path set corresponding to the terminal and the at least one other terminal according to the link identity identifier and the link change identifier, including:
  • the server parses the link identity identifier and the link change identifier included in the update indication message;
  • the link change identifier indicates that the change from the available state to the unavailable state, query a transmission path that matches the link identity in the transmission path set associated with the target terminal, and transmit the association from the target terminal. Deleting the matched transmission path in the path set; the target terminal is any one of the terminal and any one of the other terminals;
  • the link identity identifier and the topology connection And acquiring, according to the link identity identifier and the topology connection, the topology connection relationship of each transmission path included in the transmission path set associated with the target terminal, if the link change identifier indicates that the state is changed from the unavailable state to the available state.
  • the relationship determines a new transmission path and adds the newly added transmission path to the transmission path set associated with the target terminal.
  • the communication link is an unavailable state identifier.
  • the link quality parameter of the communication link does not meet the requirement.
  • the terminal periodically collects the link quality parameter of the communication link, and if the link quality parameter of the communication link is greater than the pre- When setting the value, determine that the communication link is available, if the link quality parameter of the communication link is small When the preset value is used, determining that the communication link is in an unavailable state; or, the terminal periodically collects multiple link quality parameters, and if multiple link quality parameters are greater than the first preset value, determining the communication link. If the multiple link quality parameters are less than the second preset value, the communication link is determined to be unavailable.
  • the target terminal is any one of the terminal and the at least one other terminal, and the server parses the link identity identifier and the link change identifier included in the update indication message, where the link change identifier indicates that the communication link changes from the available state to the unavailable state. In the case, the server queries the transmission path matching the link identity in the transmission path set associated with the target terminal, and deletes the matched transmission path from the associated transmission path set.
  • the communication system includes 4 terminals and 3 base stations, and the terminal is assumed to be the terminal 1, and the other terminals associated with the terminal 1 are the terminal 2, the terminal 3, and the terminal 4.
  • the UE1 corresponds to the communication chain according to the link identity.
  • the two network nodes of the road are the terminal 4 and the base station 3.
  • the transmission path set associated with the UE1 includes four transmission paths, the transmission path 1: the terminal 1 - the base station 1, the transmission path 2: the terminal 1 - the terminal 2 - the base station 1, and the transmission Path 3: terminal 1 - terminal 3 - base station 2, transmission path 4: terminal 1 - terminal 3 - terminal 4 - base station 3, terminal 1 determines the communication link: terminal 4 - base station 3 is changed from available state to unavailable state, to the server Sending an update indication message including a link identity and a link change identifier, the server receives the update indication message, and assumes that the target terminal is the terminal 1, and the server queries the transmission path set associated with the terminal 1 to find a match with the transmission path 4 therein, and the server deletes the transmission.
  • Path 4 after the server 1 is updated, the transmission path set of the terminal 1 includes only the transmission path 1, the transmission path 2, and the transmission path 3.
  • the server acquires the topology connection relationship of each transmission path included in the transmission path set associated with the target terminal, and determines to add according to the link identity identifier and the topology connection relationship. The transmission path and add the new transmission path to the collection of transmission paths associated with the target terminal.
  • the server determines that the two nodes of the corresponding communication link are the terminal 2 and the base station 2 according to the link identity, and the server determines that the communication link between the terminal 2 and the base station 2 changes from the unavailable state to the available state, and the server
  • the topology connection relationship of the four transmission paths in the transmission path set associated with the terminal 1 determines that the newly added transmission path of the terminal 1 is: terminal 1 - terminal 2 - base station 2, and the server adds the newly added transmission path to the terminal 1 associated with In the transmission path set, the updated transmission path set contains 5 pieces at this time. Transmission path.
  • the method for updating the transmission path includes:
  • a transmission path request message where the transmission path request message is used to request the server to select at least one path from the set of transmission paths associated with the terminal, and transmit the at least one transmission Notifying the path to the terminal;
  • the terminal performs service transmission according to the at least one transmission path notified by the server.
  • the transmission path request message is sent to the server, and according to the foregoing update method of the transmission path, the server stores the latest transmission path set of each terminal, and the server receives the transmission path request message of the terminal. At least one transmission path is selected from the latest transmission path set associated with the terminal, and the terminal triggers the transmission path switching process, and switches the current transmission path to the selected at least one transmission path for service transmission.
  • the method further includes:
  • the terminal switches to the target path for service transmission.
  • the target transmission path is determined from the associated transmission path set, the terminal determines the egress terminal and the egress base station corresponding to the target transmission path, and the terminal sends a handover request message to the egress terminal;
  • the message includes the feature information of the terminal.
  • the terminal receives the handover confirmation message returned by the egress terminal, the terminal completes the path switching operation according to the handover confirmation message.
  • the terminal receives the handover indication returned by the serving base station, the terminal completes the path switching operation according to the handover indication message.
  • the target path is one or more transmission paths.
  • the terminal when the terminal detects the change of the communication link between the adjacent network nodes, the terminal sends an update indication message to the server, instructing the server to update the transmission of the terminal and the associated at least one other terminal in the terminal network. a set of paths, the server notifying each terminal in the terminal network of the updated transmission path set; or the server acts as a relay, indicating that each terminal in the terminal network locally updates the corresponding transmission path set to reduce terminal signaling data, Reduce processing overhead.
  • FIG. 3 is still another schematic flowchart of a method for updating a transmission path according to an embodiment of the present invention.
  • the method includes:
  • the service transmission includes an uplink transmission and a downlink transmission, and when the terminal detects that the service transmission is required, the terminal acquires the associated at least one other terminal according to the preset binding relationship.
  • the terminal broadcasts a link state request message to the at least one other terminal, where the link state request message is used to indicate that the at least one other terminal separately detects a chain of communication links with neighboring network nodes. a state of the road, and a link state response message of the link state identifier and the link identity of the communication link to the terminal.
  • the neighboring network node identifier and the network node with the hop count of the terminal are 1, the terminal may have one or more adjacent network nodes, the type of the network node may be a terminal or a base station, and the communication link represents two The channel between the network nodes for transmitting data, the link state of the communication link is divided into an available state and an unavailable state, the available state indicates that the link quality parameter of the communication link satisfies the transmission requirement, and the unavailable state indicates the communication chain The link quality parameters of the road do not meet the transmission requirements.
  • the terminal periodically collects the link quality parameter of the communication link, and if the link quality parameter of the communication link is greater than the preset value, determining that the communication link is available, if the link quality parameter of the communication link is smaller than When the preset value is used, it is determined that the communication link is in an unavailable state; or, the terminal periodically collects multiple link quality parameters, and if multiple link quality parameters are greater than the first preset value, determining that the communication link is The available state, if multiple link quality parameters are smaller than the second preset value, determining that the communication link is unavailable, if multiple link quality parameters are between the first preset value and the second preset value Or, including the first preset value or the second preset value, further determining a rate of change of the plurality of link quality parameters, and if the rate of change is a positive value, determining that the communication link is available, if the change The rate is negative and the communication link is determined to be unavailable.
  • the terminal determines all neighboring network nodes, and periodically detects the link status of the communication link with the adjacent network node, wherein the terminal determines
  • the method of the adjacent network node may be: the terminal acquires a pre-stored transmission path set, and determines the adjacent network node according to the topological connection relationship of each transmission path in the transmission path set.
  • the transmission path set represents a set of all available transmission paths of a certain terminal, and the transmission path includes at least one communication link.
  • the terminal according to receiving a link state response message returned by the at least one other terminal, and updating the associated transmission path set according to the link state identifier and the link identity identifier included in the link state corresponding message.
  • the link identity is used to uniquely represent the identity of the communication link
  • the node identifier of the two network nodes corresponding to the communication link may be used to represent the identity of the communication link; Determining whether the link of the communication link is in an available state or an unavailable state; the terminal receiving the associated at least one other terminal returns a link state response message including a link identity and a link state identifier of the communication link, and the terminal according to the link
  • the status identifier and the link identity update correspond to the set of transmission paths.
  • the method for updating the corresponding transmission path set may be: the other terminal acquires the current transmission path set, and determines that the link status identifier indicates the unavailable status, queries the transmission path where the communication link identifier is located from the current transmission path set, and deletes the query.
  • the terminal when the terminal broadcasts the link state request message to the at least one other terminal, if the communication link between the terminal and some other terminal of the at least one other terminal is unavailable, the terminal may indicate with the other terminal.
  • the other terminal in the available state forwards the link state request message.
  • the terminal type of the terminal and at least one other terminal is a D2D terminal or a TSC terminal.
  • the method further includes:
  • the terminal switches to the target path for service transmission.
  • the target transmission path is determined from the associated transmission path set, the terminal determines the egress terminal and the egress base station corresponding to the target transmission path, and the terminal sends a handover request message to the egress terminal;
  • the message includes the feature information of the terminal.
  • the terminal receives the handover confirmation message returned by the egress terminal, the terminal completes the path switching operation according to the handover confirmation message.
  • the terminal receives the handover indication returned by the serving base station, the terminal completes the path switching operation according to the handover indication message.
  • the target path is one or more transmission paths.
  • the terminal when detecting the transmission requirement, the terminal requests the associated link state of the neighboring network node from the associated at least one other terminal, and locally updates the corresponding transmission path set according to the obtained link state. A large number of messages generated by the link state transmission change of the communication link in the terminal network are avoided.
  • FIG. 4 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
  • the terminal in the embodiment of the present invention is used to perform a method for updating a transmission path in FIG. 1a, and the terminology and process involved may be implemented by referring to FIG. 1a. Description of the example.
  • the terminal 40 includes a detection module 401, a determination module 402, and a transmission module 403.
  • the detection module 401 is configured to detect a link state of a communication link with an adjacent network node.
  • the determining module 402 is configured to determine at least one other terminal associated with the terminal when the link state changes.
  • the sending module 403 is configured to send, to the at least one other terminal, a first update indication message that includes a link identity and a link change identifier of the communication link, where the first update indication message is used to indicate the at least Each of the other terminals updates each of the corresponding transmission path sets according to the link identity and the link change identifier.
  • the determining module 403 includes:
  • An obtaining unit configured to acquire a transmission path set associated with the terminal
  • a determining unit configured to determine the at least one other terminal according to a topology connection relationship of the transmission path set associated with the terminal.
  • the terminal 40 further includes: a receiving module and an updating module.
  • the receiving module is configured to receive a second update indication message that includes the link identity and the link change identifier sent by any one of the at least one other terminal.
  • an update module configured to update the associated transmission path set according to the link identity and the link change identifier included in the second update indication message.
  • the update module is specifically set to:
  • the link change identifier indicates that the change from the available state to the unavailable state, query a transmission path that matches the link identifier in the set of transmission paths associated with the terminal, and from the set of transmission paths associated with the terminal Deleting the matched transmission path;
  • the terminal 40 further includes:
  • the switching module is configured to: when the preset path switching condition is met, determine the target path from the set of associated transmission paths; and switch to the target path for service transmission.
  • FIG. 4 is a schematic diagram of another structure of a terminal according to an embodiment of the present invention.
  • the terminal 4 includes a processor 401, a memory 402, and a transceiver 403.
  • the terminal 4 in the embodiment of the present invention may be different types of electronic devices, such as: smart phones, tablet computers, palmtop computers, and mobile internet devices, personal digital assistants, media players, smart televisions, smart watches, smart glasses, smart hands. Ring and so on.
  • the transceiver 403 is configured to transmit and receive data with and from an external device.
  • the number of processors 401 in the terminal 4 may be one or more.
  • the processor 401 may be a CPU, and the memory 402 may be a high speed RAM memory or a non-volatile memory such as at least one disk memory.
  • processor 401, memory 402, and transceiver 403 may be coupled by a bus system or other means.
  • Terminal 4 can be used to perform the method shown in Figure 1a.
  • the program code is stored in the memory 402.
  • the processor 401 is configured to call program code stored in the memory 402 for performing the following operations:
  • the other terminal updates the corresponding transmission path set according to the link identity and the link change identifier.
  • the processor 401 performing the determining of the at least one other terminal associated with the terminal comprises:
  • the processor 401 is further configured to:
  • a second update indication message that includes a link identity identifier and a link change identifier
  • the processor 401 performs the canceling according to the second update indication
  • the set of transmission paths associated with the link identity and the link change identifier update included in the message includes:
  • the link change identifier indicates that the change from the available state to the unavailable state, query a transmission path that matches the link identifier in the set of transmission paths associated with the terminal, and from the set of transmission paths associated with the terminal Deleting the matched transmission path;
  • FIG. 5 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
  • the terminal in the embodiment of the present invention is used to perform a method for updating a transmission path in FIG. 3a, and the terminology and process involved may be implemented by referring to FIG. 3a. Description of the example.
  • the terminal 50 includes a trigger module 501, a request module 502, and an update module 503.
  • the triggering module 501 is configured to acquire the associated at least one other terminal when the service transmission is triggered.
  • the requesting module 502 is configured to broadcast a link state request message to the at least one other terminal, where the link state request message is used to indicate that the at least one other terminal respectively detects a communication link with a neighboring network node. a link state, and a link state response message indicating a link state identifier and a link identity of the communication link to the terminal.
  • the updating module 503 is configured to update the associated transmission path set according to the link state identifier and the link identity identifier included in the link state corresponding message according to the link state response message respectively received by the at least one other terminal.
  • the terminal 40 further includes:
  • the switching module is configured to: when the preset path switching condition is met, determine the target path from the set of associated transmission paths; and switch to the target path for service transmission.
  • FIG. 5 is a schematic diagram of another structure of a terminal according to an embodiment of the present invention.
  • the terminal 5 includes a processor 501, a memory 502, and a transceiver 503.
  • the transceiver 503 is configured to transmit and receive data with and from an external device.
  • the number of processors 501 in the terminal 5 may be one or more.
  • processor 501, memory 502, and transceiver 503 may be implemented by a bus system Or other ways to connect.
  • Terminal 5 can be used to perform the method shown in Figure 3a.
  • the terminal 5 in the embodiment of the present invention may be different types of electronic devices, such as: smart phones, tablet computers, palmtop computers, and mobile internet devices, personal digital assistants, media players, smart televisions, smart watches, smart glasses, smart hands. Ring and so on.
  • the processor 501 may be a CPU
  • the memory 502 may be a high speed RAM memory or a non-volatile memory such as at least one disk memory.
  • the program code is stored in the memory 502.
  • the processor 501 is configured to call the program code stored in the memory 502 for performing the following operations:
  • the terminal When the terminal triggers the service transmission, acquiring at least one other terminal associated with the terminal;
  • the type of the network node is a base station or a terminal, and the terminal and the at least one other terminal are supporting a D2D terminal or a TSC terminal.
  • FIG. 6 is a schematic structural diagram of a communication system according to an embodiment of the present invention.
  • the terminal in the embodiment of the present invention is used to perform a method for updating a transmission path in FIG. 2a, and the terminology and process involved may refer to FIG. 2a. Description of the embodiments.
  • the communication system includes a terminal 60 and a server 61.
  • the terminal 60 is configured to detect a link state of a communication link with an adjacent network node; when the link state changes, send a link identity and link including the communication link to the server 61.
  • the server 61 is configured to receive the update indication message, acquire at least one other terminal associated with the terminal 60, and update the transmission path set corresponding to the terminal 60 and the at least one other terminal according to the link identity identifier and the link change identifier, Notifying the terminal and the at least one other terminal respectively the corresponding updated transmission path set; or forwarding the update indication message to the at least one other terminal, where the update indication message is used to indicate the at least Every other end of one other terminal
  • the terminal updates each corresponding transmission path set according to the link identity and the link change identifier.
  • the server 61 is specifically configured to:
  • the link change identifier indicates that the change from the available state to the unavailable state, query a transmission path that matches the link identity in the transmission path set associated with the target terminal, and transmit the association from the target terminal. Deleting the matched transmission path in the path set; the target terminal is any one of the terminal and at least one other terminal
  • the link identity identifier and the topology connection And acquiring, according to the link identity identifier and the topology connection, the topology connection relationship of each transmission path included in the transmission path set associated with the target terminal, if the link change identifier indicates that the state is changed from the unavailable state to the available state.
  • the relationship determines a new transmission path and adds the newly added transmission path to the transmission path set associated with the target terminal.
  • the terminal 40 further includes:
  • the switching module is configured to: when the preset path switching condition is met, determine the target path from the set of associated transmission paths; and switch to the target path for service transmission.
  • the terminal provided by the embodiment of the present invention includes but is not limited to piggybacking Or terminals of other operating systems, such as mobile phones.
  • Other terminals may also be used, such as a laptop or tablet or desktop computer with a touch-sensitive surface (eg, a touch screen display and/or a touch pad).
  • the terminal includes:
  • a triggering module configured to send a transmission path request message to the server, where the transmission path request message is used to request the server to select at least one transmission path from the set of transmission paths associated with the terminal, and Notifying the terminal of the at least one transmission path;
  • a switching module configured to perform service transmission according to the at least one optimal transmission path that is notified.
  • a terminal including a display and a touch-sensitive surface is described. It should be understood, however, that the terminal can include one or more other physical user interface devices, such as a physical keyboard, mouse, and/or joystick.
  • Terminals typically support a variety of applications, such as one or more of the following: drawing applications, rendering applications, word processing applications, web page creation applications, disk editing applications, electricity Subform application, game application, phone application, video conferencing application, email application, instant messaging application, exercise support application, photo management application, digital camera application, digital video camera application, network Browse applications, digital music player applications, and/or digital video player applications.
  • applications such as one or more of the following: drawing applications, rendering applications, word processing applications, web page creation applications, disk editing applications, electricity Subform application, game application, phone application, video conferencing application, email application, instant messaging application, exercise support application, photo management application, digital camera application, digital video camera application, network Browse applications, digital music player applications, and/or digital video player applications.
  • the various applications that can be executed on the terminal can use at least one shared physical user interface device, such as a touch-sensitive surface.
  • One or more functions of the touch-sensitive surface and corresponding information displayed on the terminal may be adjusted and/or changed from one application to the next and/or adjusted and/or varied within the respective application.
  • the shared physical architecture of the terminal such as a touch-sensitive surface, can support a variety of applications with a user interface that is intuitive to the user.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

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Abstract

本发明实施例公开了一种传输路径的更新方法，包括：终端检测与相邻的网络节点之间的通信链路的链路状态；当所述链路状态发生变化时，所述终端确定与所述终端关联的至少一个其他终端；所述终端向所述至少一个其他终端发送包括所述通信链路的链路身份标识和链路变化标识的第一更新指示消息，所述第一更新指示消息用于指示所述至少一个其他终端中每个其他终端根据所述链路身份标识和所述链路变化标识更新各自对应的传输路径集合。本发明实施例还公开了一种终端和系统。采用本发明，能及时准确更新终端的可用的传输路径。

Description

一种传输路径的更新方法、终端和系统
本申请要求于2016年2月3日提交中国专利局，申请号为201610077448.2、发明名称为“一种传输路径的更新方法、终端和系统”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信领域，尤其涉及一种传输路径的更新方法、终端和系统。
背景技术
现有的用户设备的移动性管理方法为：用户设备与服务基站进行数据传输的过程中，用户设备或服务基站发现当前的Uu链路不满足传输需求，确定需要进行基站切换的情况下，用户设备或服务基站触发小区切换流程，用户设备将当前的服务基站切换到Uu链路质量更好的基站上。然而，随着用户数量的增长和部署的基站的密度的增大，为了优化频谱资源的使用，出现了设备与设备之间的通信方式，以及基站与基站之间的通信方式，当用户设备移动时检测到需要进行小区切换，需要重新选择可用的传输路径进行业务传输，如何保证用户设备的可用的传输路径进行更新是目前研究的问题。
发明内容
本发明实施例所要解决的技术问题在于，提供一种传输路径的更新方法、终端和系统。可及时和准确的更新终端的可用的传输路径。
为了解决上述技术问题，本发明实施例提供了一种传输路径的更新方法，包括：终端检测与相邻的网络节点之间的通信链路的链路状态；当所述链路状态发生变化时，所述终端确定与所述终端关联的至少一个其他终端；所述终端向所述至少一个其他终端发送包括所述通信链路的链路身份标识和链路变化标识的第一更新指示消息，所述第一更新指示消息用于指示所述至少一个其他终端中每个其他终端根据所述链路身份标识和所述链路变化标识更新各自对应的传输路径集合。
相应地，本发明实施例还提供了传输路径的更新方法，包括：终端检测与 相邻的网络节点之间的通信链路的链路状态；当所述链路状态发生变化时，所述终端向服务器发送包括所述通信链路的链路身份标识和链路变化标识的更新指示消息；所述服务器接收所述更新指示消息，获取所述终端关联的至少一个其他终端；所述服务器根据所述链路身份标识和链路变化标识更新所述终端和所述至少一个其他终端各自对应的传输路径集合，并分别向所述终端和所述至少一个其他终端分别通知对应的更新后的传输路径集合；或所述服务器向所述至少一个其他终端转发所述更新指示消息，所述更新指示消息用于指示所述至少一个其他终端中每个其他终端根据所述链路身份标识和所述链路变化标识更新各自对应的传输路径集合。
相应的，本发明实施例提供了一种传输路径的更新方法，包括：终端触发业务传输时，获取关联的至少一个其他终端；所述终端向所述至少一个其他终端广播链路状态请求消息，所述链路状态请求消息用于指示所述至少一个其他终端各自检测与相邻网络节点之间的通信链路的链路状态，以及向所述终端返回通信链路的链路状态标识和链路身份标识的的链路状态响应消息；所述终端根据接收所述至少一个其他终端各自返回的链路状态响应消息，并根据链路状态相应消息中包括的链路状态标识和链路身份标识更新关联的传输路径集合。
实施本发明实施例，具有如下有益效果：
终端在检测到相邻的网络节点之间的通信链路的链路状态发生变化时，终端指示关联的其他终端更新通信链路的身份标识和链路变化标识更新各自对应的传输路径集合，使终端网络中各个终端的传输路径集合保持最新状态，这样能终端能够根据最新的传输路径集合进行传输路径的切换和数据传输，提供了业务传输的可靠性。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1a是本发明实施例提供的一种传输路径的更新方法的流程示意图；
图1b是图1a的传输路径更新方法的具体示例图；
图2a是本发明实施例提供的一种传输路径的更新方法的另一流程示意图；
图2b是图2a的传输路径更新方法的具体示例图；
图3是本发明实施例提供的一种传输路径的更新方法的又一流程示意图；
图4a是本发明第一实施例提供的一种终端的结构示意图；
图4b是本发明第二实施例提供的一种终端的结构示意图；
图5a是本发明第三实施例提供的一种终端的结构示意图；
图5b是本发明第四实施例提供的一种终端的结构示意图；
图6是本发明实施例提供的一种通信系统的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
参见图1a，为本发明实施例提供的一种传输路径的更新方法的流程示意图，在本发明实施例中，所述方法包括：
S101、终端检测与相邻的网络节点之间的通信链路的链路状态。
具体的，相邻的网络节点表示与终端之间的跳数为1的网络节点，终端可以存在一个或多个相邻的网络节点，网络节点的类型可以为终端或基站，通信链路表示两个网络节点之间的用于传输数据的信道，通信链路的链路状态分为可用状态和不可用状态，可用状态表示通信链路的链路质量参数满足传输要求，不可用状态表示通信链路的链路质量参数不满足传输要求，其中，在通信链路的链路状态为不可用状态时极端情况为断开状态，一般情况下在通信链路的链路状态为不可用状态时仍然为连接状态。终端确定所有的相邻的网络节点，终端可周期性的检测与相邻的网络节点之间的通信链路的链路状态，其中终端确定相邻的网络节点的方法可以是：终端获取预先存储的与终端关联的传输路径集合，根据传输路径集合中各个传输路径的拓扑连接关系确定相邻的网络节点。其中，传输路径集合表示某个终端所有可用的传输路径的集合，传输路径包括至少一条通信链路。
S102、当链路状态发生变化时，终端确定与终端关联的至少一个其他终端。
具体的，当通信链路的链路状态由可用状态变化为不可用状态，或由不可用状态变化为可用状态时，终端确定关联的至少一个其他终端，确定的方法同样可用时根据预先存储的传输路径集合来确定。
S103、终端向至少一个其他终端发送包括通信链路的链路身份标识和链路变化标识的第一更新指示消息，第一更新指示消息用于指示至少一个其他终端中每个其他终端根据链路身份标识和链路变化标识更新各自对应的传输路径集合。
具体的，链路身份标识用于唯一表示通信链路的身份，可用采用通信链路对应的两个网络节点的节点标识来表示通信链路的身份标识，例如，通信链路的两个节点为终端2和基站3，则可用终端2和基站3的标识来表示终端2和基站3之间的通信链路的链路身份标识；链路变化标识表示通信链路的链路状态的变化趋势，是可用状态变化为不可用状态，还是由不可用状态变化为可用状态；终端向关联的至少一个其他终端广播包括通信链路的链路身份标识和链路变化标识的第一更新指示消息，至少一个其他终端中每个其他终端根据链路身份标识更新各自对应的传输路径集合。对于至少一个其他终端中任意一个其他终端而言，更新对应的传输路径集合的方法可以是：其他终端获取当前的传输路径集合，确定链路变化标识是由可用状态变化为不可用状态时，从当前的传输路径集合中查询通信链路标识所在的传输路径，删除查询到的传输路径；确定链路变化标识是由不可用状态变化为可用状态时，根据当前的传输路径集合中各个传输路径的拓扑连接关系得到新增的传输路径，在当前的传输路径集合中添加新增的传输路径。
需要说明的是，终端也需要根据通信链路标识和链路变化标识来更新当前的传输路径集合，更新的方法可参照其他终端的更新方法，此处不再赘述。另外，终端在向至少一个其他终端广播第一更新指示消息时，如果终端与至少一个其他终端中的某个其他终端之间的通信链路不可用，终端可以指示与该其他终端之间可用状态的其他终端转发该第一更新指示消息。
可选的，所述终端确定与所述终端关联的至少一个其他终端包括：
获取所述终端关联的传输路径集合；
根据所述终端关联的传输路径集合的拓扑连接关系确定所述至少一个其他终端。
具体的，终端获取预先存储的传输路径集合，传输路径集合中包括至少一条可用的传输路径，每个传输路径至少包括一个通信链路，根据可用的传输路径对应的各个通信链路和网络节点确定与终端关联的至少一个其他终端；或者，多个终端形成自组织网络，自组织网络中的各个终端可以为D2D终端或TSC终端，服务器维护自组织网络的拓扑连接关系，当自组织网络中删除终端或新增终端时，服务器实时的更新自组织网络的拓扑连接关系，终端可以从服务器获取最新的自组织网络的拓扑连接关系，根据拓扑连接关系得到关联的至少一个其他终端。
可选的，所述方法还包括：
所述终端接收所述至少一个其他终端中任意一个其他终端发送的包括链路身份标识和链路变化标识的第二更新指示消息；
所述终端根据所述第二更新指示消息中包括的链路身份标识和链路变化标识更新关联的传输路径集合。
具体的，终端关联的至少一个其他终端中任意一个其他终端检测到与相邻的网络节点之间的通信链路的链路状态发送变化时，向终端发送包括链路身份标识和链路变化标识的第二更新指示消息，除了给终端发送第二更新指示消息之外，还需要向其他关联的终端发送第二更新指示消息。终端根据第二更新指示消息中包括的链路身份标识和链路变化标识更新关联的传输路径集合。
可选的，所述终端根据所述第二更新指示消息中包括的链路身份标识和链路变化标识更新关联的传输路径集合包括：
所述终端解析所述第二更新指示消息中包括的链路身份标识和链路变化标识；
若所述链路变化标识表示由可用状态变化为不可用状态，在所述终端关联的传输路径集合中查询与所述链路身份标识匹配的传输路径，并从所述终端关联的传输路径集合中删除所述匹配的传输路径；
若所述链路变化标识表示由不可用状态变化为可用状态，获取所述终端关联的传输路径集合中包含的各个传输路径的拓扑连接关系，根据所述链路身份标识和所述拓扑连接关系确定新增的传输路径，并将所述新增的传输路径添加到所述终端关联的传输路径集合中。
具体的，通信链路为不可用状态表示通信链路的链路质量参数不满足要求， 例如：终端周期性的采集通信链路的链路质量参数，若通信链路的链路质量参数大于预设值时，确定该通信链路为可用状态，若通信链路的链路质量参数小于预设值时，确定该通信链路为不可用状态；或者，终端周期性的采集多个链路质量参数，若多个链路质量参数均大于第一预设值，确定该通信链路为可用状态，若多个链路质量参数均小于第二预设值，则确定该通信链路为不可用状态，若多个链路质量参数分布在第一预设值与第二预设值之间，或者，多个链路质量参数包括所述第一预设值或所述第二预设值，进一步判断多个链路质量参数的变化率，如果变化率为正值，确定该通信链路为可用状态，如果变化率为负值，确定该通信链路为不可用状态。终端解析第二更新指示消息中包括的链路身份标识和链路变化标识，在链路变化标识表示通信链路由可用状态变化为不可用状态的情况下，终端在关联的传输路径集合中查询与链路身份标识匹配的传输路径，并从关联的传输路径集合中删除该匹配的传输路径。
举例说明：参见图1b，通信系统包括4个终端和3个基站，假设终端为终端1，终端1关联的其他终端为终端2、终端3和终端4，UE1根据链路身份标识对应的通信链路的两个网络节点为终端4和基站3，UE1关联的传输路径集合中包括4条传输路径，传输路径1：终端1-基站1，传输路径2：终端1-终端2-基站1，传输路径3：终端1-终端3-基站2，传输路径4：终端1-终端3-终端4-基站3，终端1确定通信链路：终端4-基站3由可用状态变化不可用状态，终端1查询关联的传输路径集合发现与其中的传输路径4匹配，终端1删除传输路径4，终端1更新后的传输路径集合只包含传输路径1、传输路径2和传输路径3。
若链路变化标识表示通信链路由不可用状态变化为可用状态，终端获取关联的传输路径集合中包含的各个传输路径的拓扑连接关系，根据链路身份标识和拓扑连接关系确定新增的传输路径，并将新增的传输路径添加到终端关联的传输路径集合中。
续上例，终端1根据链路身份标识对应的通信链路的两个节点为终端2和基站2，终端1确定终端2和基站2之间的通信链路由不可用状态变化为可用状态，终端1根据关联的传输路径集合中4个传输路径的拓扑连接关系，确定终端1的新增的传输路径为：终端1-终端2-基站2，终端1将新增的传输路径添加到关联的传输路径集合中，更新后的传输路径集合此时包含5条传输路径。通信系统中其他终端关联的传输路径集合的更新方法可以参照上例，此处不再赘 述。
可选的，所述方法还包括：
当所述终端满足预设的路径切换条件时，从关联的传输路径集合中确定目标路径；
所述终端切换到所目标路径上进行业务传输。
具体的，当终端满足预设的路径切换条件时，从关联的传输路径集合中确定目标传输路径，终端确定目标传输路径对应的出口终端和出口基站，终端向出口终端发送切换请求消息；切换请求消息包括终端的特征信息，终端接收到出口终端返回的切换确认消息时，根据切换确认消息完成路径切换操作；或终端接收到服务基站返回的切换指示消时，根据切换指示消息完成路径切换操作。目标路径为一条或多条传输路径。
从上述实施例可以看出，终端在检测到相邻的网络节点之间的通信链路的链路状态发生变化时，终端指示关联的其他终端更新通信链路的身份标识和链路变化标识更新各自对应的传输路径集合，使终端网络中各个终端的传输路径集合保持最新状态，这样能终端能够根据最新的传输路径集合进行传输路径的切换和数据传输，提供了业务传输的可靠性。
参见图2a，为本发明实施例提供的一种传输路径的更新方法的流程示意图，在本发明实施例中，所述方法包括：
S201、终端检测与相邻的网络节点之间的通信链路的链路状态。
具体的，相邻的网络节点表示与终端之间的跳数为1的网络节点，终端可以存在一个或多个相邻的网络节点，网络节点的类型可以为终端或基站，通信链路表示两个网络节点之间的用于传输数据的信道，例如：通信链路的两个节点为终端2和基站3，则可用终端2和基站3的标识来表示终端2和基站3之间的通信链路的链路身份标识；通信链路的链路状态分为可用状态和不可用状态，可用状态表示通信链路的链路质量参数满足传输要求，不可用状态表示通信链路的链路质量参数不满足传输要求，其中，在通信链路的链路状态为不可用状态时，极端情况下通信链路为断开状态，一般情况下即使通信链路的链路状态为不可用状态仍然为连接状态。终端确定所有的相邻的网络节点，终端可周期性的检测与相邻的网络节点之间的通信链路的链路状态，终端确定相邻的网络节点的方法可以是：终端获取预先存储的传输路径集合，根据传输路径集合中 各个传输路径的拓扑连接关系确定相邻的网络节点。其中，传输路径集合表示某个终端所有可用的传输路径的集合，传输路径包括至少一条通信链路。
S202、当所述链路状态发生变化时，所述终端向服务器发送包括所述通信链路的链路身份标识和链路变化标识的更新指示消息。
具体的，链路身份标识用于唯一表示通信链路的身份，可以采用通信链路对应的两个网络节点的节点标识来表示通信链路的身份标识；链路变化标识表示通信链路的链路状态的变化趋势，是由可用状态变化为不可用状态，还是由不可用状态变化为可用状态。当链路链路状态发生变化时，终端向服务器发送包括通信链路的链路身份标识和链路变化标识的更新指示消息。
S203、所述服务器接收所述更新指示消息，获取所述终端关联的至少一个其他终端。
具体的，服务器接收到更新指示消息，根据预先设置的关联关系获取终端关联的至少一个其他终端。
具体的，服务器根据终端关联的传输路径集合中各个传输路径的拓扑连接关系确定终端关联的至少一个其他终端。
S204、所述服务器根据所述链路身份标识和链路变化标识更新所述终端和所述至少一个其他终端各自对应的传输路径集合，并分别向所述终端和所述至少一个其他终端分别通知对应的更新后的传输路径集合；或
所述服务器向所述至少一个其他终端转发所述更新指示消息，所述更新指示消息用于指示所述至少一个其他终端中每个其他终端根据所述链路身份标识和所述链路变化标识更新各自对应的传输路径集合。
具体的，服务器根据接收到的更新指示消息中包括的链路身份标识和链路变化标识更新终端和至少一个其他终端各自对应的传输路径集合，以及分别向终端和至少一个其他终端分别发送更新后的传输路径集合，对于终端和至少一个其他终端中任意一个终端而言，服务器传输路径集合的方法可以是：服务器获取某个终端关联的当前的传输路径集合，确定链路变化标识表示通信链路的链路状态由可用状态变化为不可用状态时，从当前的传输路径集合中查询通信链路标识所在的传输路径，删除查询到的传输路径；确定链路变化标识表示由不可用状态变化为可用状态时，根据该终端关联的当前的传输路径集合中各个传输路径的拓扑连接关系得到新增的传输路径，在当前的传输路径集合中添加 新增的传输路径。
在本发明实施例的另一种可能的实现方式中，服务器接收到终端发送的更新指示消息后，服务器起中继作用，服务器向至少一个其他终端广播该更新指示消息，以减少终端的信令发送资源，其中服务器可以是核心网中独立或位于其他网络节点中的网元，或位于接入网络中独立或位于其他网络节点中的网元。服务器向至少一个其他终端广播包括通信链路的链路身份标识和链路变化标识的更新指示消息，至少一个其他终端中每个其他终端根据链路身份标识更新各自对应的传输路径集合。对于至少一个其他终端中任意一个其他终端而言，更新对应的传输路径集合的方法可以是：其他终端获取自身关联的当前的传输路径集合，确定链路变化标识表示由可用状态变化为不可用状态时，从当前的传输路径集合中查询通信链路标识所在的传输路径，删除查询到的传输路径；确定链路变化标识表示由不可用状态变化为可用状态时，根据当前的传输路径集合中各个传输路径的拓扑连接关系得到新增的传输路径，在当前的传输路径集合中添加新增的传输路径。终端和至少一个其他终端的终端类型为D2D终端或TSC终端。
进一步可选的，所述服务器根据所述链路身份标识和链路变化标识更新所述终端和所述至少一个其他终端各自对应的传输路径集合包括：
所述服务器解析所述更新指示消息中包括的链路身份标识和链路变化标识；
若所述链路变化标识表示由可用状态变化为不可用状态，在所述目标终端关联的传输路径集合中查询与所述链路身份标识匹配的传输路径，并从所述目标终端关联的传输路径集合中删除所述匹配的传输路径；目标终端为终端和所述任意一个其他终端中任意一个终端；
若所述链路变化标识表示由不可用状态变化为可用状态，获取所述目标终端关联的传输路径集合中包含的各个传输路径的拓扑连接关系，根据所述链路身份标识和所述拓扑连接关系确定新增的传输路径，并将所述新增的传输路径添加到所述目标终端关联的传输路径集合中。
具体的，通信链路为不可用状态标识通信链路的链路质量参数不满足要求，例如：终端周期性的采集通信链路的链路质量参数，若通信链路的链路质量参数大于预设值时，确定该通信链路为可用状态，若通信链路的链路质量参数小 于预设值时，确定该通信链路为不可用状态；或者，终端周期性的采集多个链路质量参数，若多个链路质量参数均大于第一预设值，确定该通信链路为可用状态，若多个链路质量参数均小于第二预设值，则确定该通信链路为不可用状态，若多个链路质量参数位于第一预设值与第二预设值之间，或者，包括所述第一预设值或所述第二预设值，进一步判断多个链路质量参数的变化率，如果变化率为正值，确定该通信链路为可用状态，如果变化率为负值，确定该通信链路为不可用状态。目标终端为终端和至少一个其他终端中的任意一个，服务器解析更新指示消息中包括的链路身份标识和链路变化标识，在链路变化标识表示通信链路由可用状态变化为不可用状态的情况下，服务器在目标终端关联的传输路径集合中查询与链路身份标识匹配的传输路径，并从关联的传输路径集合中删除该匹配的传输路径。
举例说明：参见图2b，通信系统包括4个终端和3个基站，假设终端为终端1，终端1关联的其他终端为终端2、终端3和终端4，UE1根据链路身份标识对应的通信链路的两个网络节点为终端4和基站3，UE1关联的传输路径集合中包括4条传输路径，传输路径1：终端1-基站1，传输路径2：终端1-终端2-基站1，传输路径3：终端1-终端3-基站2，传输路径4：终端1-终端3-终端4-基站3，终端1确定通信链路：终端4-基站3由可用状态变化不可用状态，向服务器发送包括链路身份标识和链路变化标识的更新指示消息，服务器接收更新指示消息，假设目标终端为终端1，服务器查询终端1关联的传输路径集合发现与其中的传输路径4匹配，服务器删除传输路径4，服务器1更新后终端1的传输路径集合只包含传输路径1、传输路径2和传输路径3。
若链路变化标识表示通信链路由不可用状态变化为可用状态，服务器获取目标终端关联的传输路径集合中包含的各个传输路径的拓扑连接关系，根据链路身份标识和拓扑连接关系确定新增的传输路径，并将新增的传输路径添加到目标终端关联的传输路径集合中。
续上例，服务器根据链路身份标识对应的通信链路的两个节点为终端2和基站2，服务器确定终端2和基站2之间的通信链路由不可用状态变化为可用状态，服务器根据终端1关联的传输路径集合中4个传输路径的拓扑连接关系，确定终端1的新增的传输路径为：终端1-终端2-基站2，服务器将新增的传输路径添加到终端1关联的传输路径集合中，更新后的传输路径集合此时包含5条 传输路径。通信系统中其他终端关联的传输路径集合的更新方法可以参照上例，此处不再赘述。
在本发明的一种可能的实施方式中，传输路径的更新方法包括：
终端触发业务传输时，向所述服务器发送传输路径请求消息，所述传输路径请求消息用于请求所述服务器从所述终端关联的传输路径集合中选择至少一条路径，并将所述至少一条传输路径通知给所述终端；
所述终端根据所述服务器通知的所述至少一条传输路径进行业务传输。
具体的，终端触发业务传输时，主动向服务器发送传输路径请求消息，根据上述的传输路径的更新方法，服务器上存储有各个终端的最新的传输路径集合，服务器在接收到终端的传输路径请求消息时，从终端关联的最新的传输路径集合中选择至少一条传输路径，终端触发传输路径切换流程，将当前的传输路径切换到选择的至少一条传输路径上进行业务传输。
可选的，所述方法还包括：
当所述终端满足预设的路径切换条件时，从关联的传输路径集合中确定目标路径；
所述终端切换到所目标路径上进行业务传输。
具体的，当终端满足预设的路径切换条件时，从关联的传输路径集合中确定目标传输路径，终端确定目标传输路径对应的出口终端和出口基站，终端向出口终端发送切换请求消息；切换请求消息包括终端的特征信息，终端接收到出口终端返回的切换确认消息时，根据切换确认消息完成路径切换操作；或终端接收到服务基站返回的切换指示消时，根据切换指示消息完成路径切换操作。目标路径为一条或多条传输路径。
从上面的实施例可以看出，终端检测到相邻的网络节点之间的通信链路发送变化时，向服务器发送更新指示消息，指示服务器更新终端网络中终端和关联的至少一个其他终端的传输路径集合，由服务器向终端网络中各个终端通知更新后的传输路径集合；或服务器起中继作用，指示终端网络中的各个终端在本地更新对应的传输路径集合，以减少终端信令发送数据，降低处理开销。
参见图3，为本发明实施例提供的一种传输路径的更新方法的又一流程示意图，在本发明实施例中，所述方法包括：
S301、终端触发业务传输时，获取关联的至少一个其他终端。
具体的，业务传输包括上行传输和下行传输，终端检测到需要进行业务传输时，根据预先设置的绑定关系获取关联的至少一个其他终端。
S302、所述终端向所述至少一个其他终端广播链路状态请求消息，所述链路状态请求消息用于指示所述至少一个其他终端各自检测与相邻网络节点之间的通信链路的链路状态，以及向所述终端返回通信链路的链路状态标识和链路身份标识的的链路状态响应消息。
具体的，相邻的网络节点标识与终端之间的跳数为1的网络节点，终端可以存在一个或多个相邻的网络节点，网络节点的类型可以为终端或基站，通信链路表示两个网络节点之间的用于传输数据的信道，通信链路的链路状态分为可用状态和不可用状态，可用状态表示通信链路的链路质量参数满足传输要求，不可用状态表示通信链路的链路质量参数不满足传输要求。例如：终端周期性的采集通信链路的链路质量参数，若通信链路的链路质量参数大于预设值时，确定该通信链路为可用状态，若通信链路的链路质量参数小于预设值时，确定该通信链路为不可用状态；或者，终端周期性的采集多个链路质量参数，若多个链路质量参数均大于第一预设值，确定该通信链路为可用状态，若多个链路质量参数均小于第二预设值，则确定该通信链路为不可用状态，若多个链路质量参数位于第一预设值与第二预设值之间，或者，包括所述第一预设值或所述第二预设值，进一步判断多个链路质量参数的变化率，如果变化率为正值，确定该通信链路为可用状态，如果变化率为负值，确定该通信链路为不可用状态。
对于至少一个其他终端中的任意一个终端而言，该终端确定所有的相邻的网络节点，可周期性的检测与相邻的网络节点之间的通信链路的链路状态，其中该终端确定相邻的网络节点的方法可以是：该终端获取预先存储的传输路径集合，根据传输路径集合中各个传输路径的拓扑连接关系确定相邻的网络节点。其中，传输路径集合表示某个终端所有可用的传输路径的集合，传输路径包括至少一条通信链路。
S303、所述终端根据接收所述至少一个其他终端各自返回的链路状态响应消息，并根据链路状态相应消息中包括的链路状态标识和链路身份标识更新关联的传输路径集合。
具体的，链路身份标识用于唯一表示通信链路的身份标识，可用采用通信链路对应的两个网络节点的节点标识来表示通信链路的身份标识；链路状态标 识表示通信链路的链路为可用状态还是不可用状态；终端接收关联的至少一个其他终端返回包括通信链路的链路身份标识和链路状态标识的链路状态响应消息，终端根据链路状态标识和链路身份标识更新对应的传输路径集合。更新对应的传输路径集合的方法可以是：其他终端获取当前的传输路径集合，确定链路状态标识表示不可用状态时，从当前的传输路径集合中查询通信链路标识所在的传输路径，删除查询到的传输路径；确定链路状态标识表示可用状态时，根据当前的传输路径集合中各个传输路径的拓扑连接关系得到新增的传输路径，在当前的传输路径集合中添加新增的传输路径。
需要说明的是，终端在向至少一个其他终端广播链路状态请求消息时，如果终端与至少一个其他终端中的某个其他终端之间的通信链路不可用，终端可以指示与该其他终端之间可用状态的其他终端转发该链路状态请求消息。终端和至少一个其他终端的终端类型为D2D终端或TSC终端。
可选的，所述方法还包括：
当所述终端满足预设的路径切换条件时，从关联的传输路径集合中确定目标路径；
所述终端切换到所目标路径上进行业务传输。
具体的，当终端满足预设的路径切换条件时，从关联的传输路径集合中确定目标传输路径，终端确定目标传输路径对应的出口终端和出口基站，终端向出口终端发送切换请求消息；切换请求消息包括终端的特征信息，终端接收到出口终端返回的切换确认消息时，根据切换确认消息完成路径切换操作；或终端接收到服务基站返回的切换指示消时，根据切换指示消息完成路径切换操作。目标路径为一条或多条传输路径。
从上述实施例可以看出，终端在检测到有传输需求时，向关联的至少一个其他终端请求各自与相邻的网络节点的链路状态，本地根据得到的链路状态更新对应的传输路径集合，避免终端网络中通信链路的链路状态发送变化生成的数量众多的消息。
参见图4a，为本发明实施例提供的一种终端的结构示意图，本发明实施例的终端用于执行图1a中的一种传输路径的更新方法，所涉及的术语和过程可参照图1a实施例的描述。终端40包括：检测模块401、确定模块402和发送模块403。
检测模块401，设置为检测与相邻的网络节点之间的通信链路的链路状态。
确定模块402，设置为当所述链路状态发生变化时，确定与所述终端关联的至少一个其他终端。
发送模块403，设置为向所述至少一个其他终端发送包括所述通信链路的链路身份标识和链路变化标识的第一更新指示消息，所述第一更新指示消息用于指示所述至少一个其他终端中每个其他终端根据所述链路身份标识和所述链路变化标识更新各自对应的传输路径集合。
可选的，确定模块403包括：
获取单元，设置为获取所述终端关联的传输路径集合；
确定单元，设置为根据所述终端关联的传输路径集合的拓扑连接关系确定所述至少一个其他终端。
可选的，终端40还包括：接收模块和更新模块。
接收模块，设置为接收所述至少一个其他终端中任意一个其他终端发送的包括链路身份标识和链路变化标识的第二更新指示消息。
更新模块，设置为根据所述第二更新指示消息中包括的链路身份标识和链路变化标识更新关联的传输路径集合。
可选的，更新模块具体设置为：
解析所述第二更新指示消息中包括的链路身份标识和链路变化标识；
若所述链路变化标识表示由可用状态变化为不可用状态，在所述终端关联的传输路径集合中查询与所述链路标识匹配的传输路径，并从所述终端关联的传输路径集合中删除所述匹配的传输路径；
若所述链路变化标识表示由不可用状态变化为可用状态，获取所述终端关联的传输路径集合中包含的各个传输路径的拓扑连接关系，根据所述链路身份标识和所述拓扑连接关系确定新增的传输路径，并将所述新增的传输路径添加到所述终端关联的传输路径集合中。
可选的，终端40还包括：
切换模块，设置为当满足预设的路径切换条件时，从关联的传输路径集合中确定目标路径；切换到所目标路径上进行业务传输。
本发明实施例和图1a的方法实施例基于同一构思，其带来的技术效果也相同，具体过程可参照方法实施例一的描述，此处不再赘述。
参见图4，为本发明实施例提供的一种终端的另一结构示意图，在本发明实施例中，终端4包括处理器401、存储器402和收发器403。本发明实施例中的终端4可以是不同类型的电子设备，例如：智能手机、平板电脑、掌上电脑以及移动互联网设备、个人数字助理、媒体播放器、智能电视、智能手表、智能眼镜、智能手环等。收发器403用于与外部设备之间收发数据。终端4中的处理器401的数量可以是一个或多个。所述处理器401可以是CPU，所述存储器402可以是高速RAM存储器，也可以是非不稳定的存储器(non-volatile memory)，例如至少一个磁盘存储器。本发明的一些实施例中，处理器401、存储器402和收发器403可通过总线系统或其他方式连接。终端4可以用于执行图1a所示的方法。关于本实施例涉及的术语的含义以及举例，可以参考图1a对应的实施例。此处不再赘述。
其中，存储器402中存储程序代码。处理器401用于调用存储器402中存储的程序代码，用于执行以下操作：
检测与相邻的网络节点之间的通信链路的链路状态；
当所述链路状态发生变化时，确定与所述终端关联的至少一个其他终端；
向所述至少一个其他终端发送包括所述通信链路的链路身份标识和链路变化标识的第一更新指示消息，所述第一更新指示消息用于指示所述至少一个其他终端中每个其他终端根据所述链路身份标识和所述链路变化标识更新各自对应的传输路径集合。
在本发明的一些实施例中，处理器401执行所述确定与所述终端关联的至少一个其他终端包括：
获取所述终端关联的传输路径集合；
根据所述终端关联的传输路径集合的拓扑连接关系确定所述至少一个其他终端。
在本发明的一些实施例中，处理器401还用于执行：
接收所述至少一个其他终端中任意一个其他终端发送的包括链路身份标识和链路变化标识的第二更新指示消息；
根据所述第二更新指示消息中包括的链路身份标识和链路变化标识更新关联的传输路径集合。
在本发明的一些实施例中，处理器401执行所述根据所述第二更新指示消 息中包括的链路身份标识和链路变化标识更新关联的传输路径集合包括：
解析所述第二更新指示消息中包括的链路身份标识和链路变化标识；
若所述链路变化标识表示由可用状态变化为不可用状态，在所述终端关联的传输路径集合中查询与所述链路标识匹配的传输路径，并从所述终端关联的传输路径集合中删除所述匹配的传输路径；
若所述链路变化标识表示由不可用状态变化为可用状态，获取所述终端关联的传输路径集合中包含的各个传输路径的拓扑连接关系，根据所述链路身份标识和所述拓扑连接关系确定新增的传输路径，并将所述新增的传输路径添加到所述终端关联的传输路径集合中。
参见图5a，为本发明实施例提供的一种终端的结构示意图，本发明实施例的终端用于执行图3a中的一种传输路径的更新方法，所涉及的术语和过程可参照图3a实施例的描述。终端50包括：触发模块501、请求模块502和更新模块503。
触发模块501，设置为触发业务传输时，获取关联的至少一个其他终端。
请求模块502，设置为向所述至少一个其他终端广播链路状态请求消息，所述链路状态请求消息用于指示所述至少一个其他终端各自检测与相邻网络节点之间的通信链路的链路状态，以及向所述终端返回通信链路的链路状态标识和链路身份标识的的链路状态响应消息。
更新模块503，设置为根据接收所述至少一个其他终端各自返回的链路状态响应消息，并根据链路状态相应消息中包括的链路状态标识和链路身份标识更新关联的传输路径集合。
可选的，终端40还包括：
切换模块，设置为当满足预设的路径切换条件时，从关联的传输路径集合中确定目标路径；切换到所目标路径上进行业务传输。
本发明实施例和图3a的方法实施例基于同一构思，其带来的技术效果也相同，具体过程可参照方法实施例一的描述，此处不再赘述。
参见图5b，为本发明实施例提供的一种终端的另一结构示意图，在本发明实施例中，终端5包括处理器501、存储器502和收发器503。收发器503用于与外部设备之间收发数据。终端5中的处理器501的数量可以是一个或多个。本发明的一些实施例中，处理器501、存储器502和收发器503可通过总线系统 或其他方式连接。终端5可以用于执行图3a所示的方法。本发明实施例中的终端5可以是不同类型的电子设备，例如：智能手机、平板电脑、掌上电脑以及移动互联网设备、个人数字助理、媒体播放器、智能电视、智能手表、智能眼镜、智能手环等。所述处理器501可以是CPU，所述存储器502可以是高速RAM存储器，也可以是非不稳定的存储器(non-volatile memory)，例如至少一个磁盘存储器。关于本实施例涉及的术语的含义以及举例，可以参考图3a对应的实施例。此处不再赘述。
其中，存储器502中存储程序代码。处理器501用于调用存储器502中存储的程序代码，用于执行以下操作：
终端触发业务传输时，获取关联的至少一个其他终端；
所述终端向所述至少一个其他终端广播链路状态请求消息，所述链路状态请求消息用于指示所述至少一个其他终端各自检测与相邻网络节点之间的通信链路的链路状态，以及向所述终端返回通信链路的链路状态标识和链路身份标识的的链路状态响应消息；
所述终端根据接收所述至少一个其他终端各自返回的链路状态响应消息，并根据链路状态相应消息中包括的链路状态标识和链路身份标识更新关联的传输路径集合。
在本发明的一些实施例中，所述网络节点的类型为基站或终端，所述终端和所述至少一个其他终端为支持D2D终端或TSC终端。
参见图6，为本发明实施例提供的一种通信系统的结构示意图，本发明实施例的终端用于执行图2a中的一种传输路径的更新方法，所涉及的术语和过程可参照图2a实施例的描述。通信系统包括：终端60和服务器61。
终端60用于检测与相邻的网络节点之间的通信链路的链路状态；当所述链路状态发生变化时，向服务器61发送包括所述通信链路的链路身份标识和链路变化标识的更新指示消息；
服务器61用于接收所述更新指示消息，获取终端60关联的至少一个其他终端；根据所述链路身份标识和链路变化标识更新终端60和所述至少一个其他终端各自对应的传输路径集合，并分别向所述终端和所述至少一个其他终端分别通知对应的更新后的传输路径集合；或向所述至少一个其他终端转发所述更新指示消息，所述更新指示消息用于指示所述至少一个其他终端中每个其他终 端根据所述链路身份标识和所述链路变化标识更新各自对应的传输路径集合。
可选的，服务器61具体用于：
解析所述更新指示消息中包括的链路身份标识和链路变化标识；
若所述链路变化标识表示由可用状态变化为不可用状态，在所述目标终端关联的传输路径集合中查询与所述链路身份标识匹配的传输路径，并从所述目标终端关联的传输路径集合中删除所述匹配的传输路径；所述目标终端为所述终端和至少一个其他终端中的任意一个
若所述链路变化标识表示由不可用状态变化为可用状态，获取所述目标终端关联的传输路径集合中包含的各个传输路径的拓扑连接关系，根据所述链路身份标识和所述拓扑连接关系确定新增的传输路径，并将所述新增的传输路径添加到所述目标终端关联的传输路径集合中。
可选的，终端40还包括：
切换模块，设置为当满足预设的路径切换条件时，从关联的传输路径集合中确定目标路径；切换到所目标路径上进行业务传输。
本发明实施例和图2a的方法实施例基于同一构思，其带来的技术效果也相同，具体过程可参照方法实施例一的描述，此处不再赘述。
本发明实施例提供的终端包括但不限于搭载
Figure PCTCN2016097163-appb-000001
或者其它操作系统的终端，诸如移动电话。也可以是其它终端，诸如具有触敏表面(例如，触摸屏显示器和/或触控板)的膝上型计算机或平板电脑或台式计算机。
在本发明的一种可能的实现方式中，终端包括：
触发模块，设置为触发业务传输时，向所述服务器发送传输路径请求消息，所述传输路径请求消息用于请求所述服务器从所述终端关联的传输路径集合中选择至少一条传输路径，并将所述至少一条传输路径通知给所述终端；
切换模块，设置为根据通知的所述至少一条最优传输路径进行业务传输。
在下面的讨论中，介绍了一种包括显示器和触敏表面的终端。然而应当理解，终端可以包括一个或多个其他物理用户接口设备，诸如物理键盘、鼠标和/或操作杆。
终端通常支持多种应用程序，诸如以下中的一种或多种：画图应用程序、呈现应用程序、文字处理应用程序、网页创建应用程序、盘编辑应用程序、电 子表格应用程序、游戏应用程序、电话应用程序、视频会议应用程序、电子邮件应用程序、即时消息应用程序、锻炼支持应用程序、相片管理应用程序、数字相机应用程序、数字视频摄像机应用程序、网络浏览应用程序、数字音乐播放器应用程序、和/或数字视频播放器应用程序。
可在终端上执行的各种应用程序可使用至少一个共用的物理用户接口设备，诸如触敏表面。触敏表面的一种或多种功能以及显示在终端上的相应信息可从一种应用程序调整和/或变化至下一种应用程序和/或在相应应用程序内被调整和/或变化。这样，终端的共用物理架构(诸如触敏表面)可利用对于用户而言直观清楚的用户界面来支持各种应用程序。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来指令相关的硬件来完成，所述的程序可存储于一计算机可读取存储介质中，该程序在执行时，可包括如上述各方法的实施例的流程。其中，所述的存储介质可为磁碟、光盘、只读存储记忆体(Read-Only Memory，ROM)或随机存储记忆体(Random Access Memory，RAM)等。

Claims (19)

  1. 一种传输路径的更新方法，其特征在于，包括：
    终端检测与相邻的网络节点之间的通信链路的链路状态；
    当所述链路状态发生变化时，所述终端确定与所述终端关联的至少一个其他终端；
    所述终端向所述至少一个其他终端发送包括所述通信链路的链路身份标识和链路变化标识的第一更新指示消息，所述第一更新指示消息用于指示所述至少一个其他终端中每个其他终端根据所述链路身份标识和所述链路变化标识更新各自对应的传输路径集合。
  2. 如权利要求1所述的方法，其特征在于，所述终端确定与所述终端关联的至少一个其他终端包括：
    获取所述终端关联的传输路径集合；
    根据所述终端关联的传输路径集合的拓扑连接关系确定所述至少一个其他终端。
  3. 如权利要求1所述的方法，其特征在于，还包括：
    所述终端接收所述至少一个其他终端中任意一个其他终端发送的包括链路身份标识和链路变化标识的第二更新指示消息；
    所述终端根据所述第二更新指示消息中包括的链路身份标识和链路变化标识更新关联的传输路径集合。
  4. 如权利要求3所述的方法，其特征在于，所述终端根据所述第二更新指示消息中包括的链路身份标识和链路变化标识更新关联的传输路径集合包括：
    所述终端解析所述第二更新指示消息中包括的链路身份标识和链路变化标识；
    若所述链路变化标识表示由可用状态变化为不可用状态，在所述终端关联的传输路径集合中查询与所述链路标识匹配的传输路径，并从所述终端关联的传输路径集合中删除所述匹配的传输路径；
    若所述链路变化标识表示由不可用状态变化为可用状态，获取所述终端关联的传输路径集合中包含的各个传输路径的拓扑连接关系，根据所述链路身份标识和所述拓扑连接关系确定新增的传输路径，并将所述新增的传输路径添加到所述终端关联的传输路径集合中。
  5. 一种传输路径的更新方法，其特征在于，包括：
    终端检测与相邻的网络节点之间的通信链路的链路状态；
    当所述链路状态发生变化时，所述终端向服务器发送包括所述通信链路的链路身份标识和链路变化标识的更新指示消息；
    所述服务器接收所述更新指示消息，获取所述终端关联的至少一个其他终端；
    所述服务器根据所述链路身份标识和链路变化标识更新所述终端和所述至少一个其他终端各自对应的传输路径集合，并分别向所述终端和所述至少一个其他终端分别通知对应的更新后的传输路径集合；或
    所述服务器向所述至少一个其他终端转发所述更新指示消息，所述更新指示消息用于指示所述至少一个其他终端中每个其他终端根据所述链路身份标识和所述链路变化标识更新各自对应的传输路径集合。
  6. 如权利要求5所述的方法，其特征在于，所述服务器根据所述链路身份标识和链路变化标识更新所述终端和所述至少一个其他终端各自对应的传输路径集合包括：
    所述服务器解析所述更新指示消息中包括的链路身份标识和链路变化标识；
    若所述链路变化标识表示由可用状态变化为不可用状态，在所述目标终端关联的传输路径集合中查询与所述链路身份标识匹配的传输路径，并从所述目标终端关联的传输路径集合中删除所述匹配的传输路径；所述目标终端为所述终端和至少一个其他终端中的任意一个
    若所述链路变化标识表示由不可用状态变化为可用状态，获取所述目标终端关联的传输路径集合中包含的各个传输路径的拓扑连接关系，根据所述链路身份标识和所述拓扑连接关系确定新增的传输路径，并将所述新增的传输路径添加到所述目标终端关联的传输路径集合中。
  7. 一种传输路径的更新方法，其特征在于，包括：
    终端触发业务传输时，获取关联的至少一个其他终端；
    所述终端向所述至少一个其他终端广播链路状态请求消息，所述链路状态请求消息用于指示所述至少一个其他终端各自检测与相邻网络节点之间的通信链路的链路状态，以及向所述终端返回通信链路的链路状态标识和链路身份标 识的的链路状态响应消息；
    所述终端根据接收所述至少一个其他终端各自返回的链路状态响应消息，并根据链路状态相应消息中包括的链路状态标识和链路身份标识更新关联的传输路径集合。
  8. 如权利要求1-7任意一项所述的方法，其特征在于，还包括：
    当所述终端满足预设的路径切换条件时，从关联的传输路径集合中确定目标路径；
    所述终端切换到所目标路径上进行业务传输。
  9. 一种传输路径更新方法，其特征在于，包括：
    所述终端触发业务传输时，向所述服务器发送传输路径请求消息，所述传输路径请求消息用于请求所述服务器从所述终端关联的传输路径集合中选择至少一条传输路径，并将所述至少一条传输路径通知给所述终端；
    所述终端根据通知的所述至少一条最优传输路径进行业务传输。
  10. 如权利要求1-7及9中任意一项所述的方法，其特征在于，所述网络节点的类型为基站或终端，所述终端和所述至少一个其他终端为支持D2D终端或TSC终端。
  11. 一种终端，其特征在于，包括：
    检测模块，设置为检测与相邻的网络节点之间的通信链路的链路状态；
    确定模块，设置为当所述链路状态发生变化时，确定与所述终端关联的至少一个其他终端；
    发送模块，设置为向所述至少一个其他终端发送包括所述通信链路的链路身份标识和链路变化标识的第一更新指示消息，所述第一更新指示消息用于指示所述至少一个其他终端中每个其他终端根据所述链路身份标识和所述链路变化标识更新各自对应的传输路径集合。
  12. 如权利要求11所述的终端，其特征在于，所述确定模块包括：
    获取单元，设置为获取所述终端关联的传输路径集合；
    确定单元，设置为根据所述终端关联的传输路径集合的拓扑连接关系确定所述至少一个其他终端。
  13. 如权利要求11所述的终端，其特征在于，还包括：
    接收模块，设置为接收所述至少一个其他终端中任意一个其他终端发送的 包括链路身份标识和链路变化标识的第二更新指示消息；
    更新模块，设置为根据所述第二更新指示消息中包括的链路身份标识和链路变化标识更新关联的传输路径集合。
  14. 如权利要求11所述的终端，其特征在于，所述更新模块具体设置为：
    解析所述第二更新指示消息中包括的链路身份标识和链路变化标识；
    若所述链路变化标识表示由可用状态变化为不可用状态，在所述终端关联的传输路径集合中查询与所述链路标识匹配的传输路径，并从所述终端关联的传输路径集合中删除所述匹配的传输路径；
    若所述链路变化标识表示由不可用状态变化为可用状态，获取所述终端关联的传输路径集合中包含的各个传输路径的拓扑连接关系，根据所述链路身份标识和所述拓扑连接关系确定新增的传输路径，并将所述新增的传输路径添加到所述终端关联的传输路径集合中。
  15. 一种通信系统，其特征在于，包括终端和服务器；
    所述终端设置为检测与相邻的网络节点之间的通信链路的链路状态；当所述链路状态发生变化时，向所述服务器发送包括所述通信链路的链路身份标识和链路变化标识的更新指示消息；
    所述服务器设置为接收所述更新指示消息，获取所述终端关联的至少一个其他终端；根据所述链路身份标识和链路变化标识更新所述终端和所述至少一个其他终端各自对应的传输路径集合，并分别向所述终端和所述至少一个其他终端分别通知对应的更新后的传输路径集合；或向所述至少一个其他终端转发所述更新指示消息，所述更新指示消息用于指示所述至少一个其他终端中每个其他终端根据所述链路身份标识和所述链路变化标识更新各自对应的传输路径集合。
  16. 如权利要求15所述的通信系统，其特征在于，所述服务器具体设置为：
    解析所述更新指示消息中包括的链路身份标识和链路变化标识；
    若所述链路变化标识表示由可用状态变化为不可用状态，在所述目标终端关联的传输路径集合中查询与所述链路身份标识匹配的传输路径，并从所述目标终端关联的传输路径集合中删除所述匹配的传输路径；所述目标终端为所述终端和至少一个其他终端中的任意一个
    若所述链路变化标识表示由不可用状态变化为可用状态，获取所述目标终 端关联的传输路径集合中包含的各个传输路径的拓扑连接关系，根据所述链路身份标识和所述拓扑连接关系确定新增的传输路径，并将所述新增的传输路径添加到所述目标终端关联的传输路径集合中。
  17. 一种终端，其特征在于，包括：
    触发模块，设置为触发业务传输时，获取关联的至少一个其他终端；
    请求模块，设置为向所述至少一个其他终端广播链路状态请求消息，所述链路状态请求消息用于指示所述至少一个其他终端各自检测与相邻网络节点之间的通信链路的链路状态，以及向所述终端返回通信链路的链路状态标识和链路身份标识的的链路状态响应消息；
    更新模块，设置为根据接收所述至少一个其他终端各自返回的链路状态响应消息，并根据链路状态相应消息中包括的链路状态标识和链路身份标识更新关联的传输路径集合。
  18. 如权利要求11、12、13、14和17任意一项所述的终端，其特征在于，还包括：
    切换模块，设置为当满足预设的路径切换条件时，从关联的传输路径集合中确定目标路径；切换到所目标路径上进行业务传输。
  19. 一种终端，其特征在于，包括：
    触发模块，设置为触发业务传输时，向服务器发送传输路径请求消息，所述传输路径请求消息用于请求所述服务器从所述终端关联的传输路径集合中选择至少一条传输路径，并将所述至少一条传输路径通知给所述终端；
    切换模块，设置为根据通知的所述至少一条最优传输路径进行业务传输。
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