WO2016145751A1 - 物联网中的数据传输方法、系统、物联网设备、终端 - Google Patents

物联网中的数据传输方法、系统、物联网设备、终端 Download PDF

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Publication number
WO2016145751A1
WO2016145751A1 PCT/CN2015/082867 CN2015082867W WO2016145751A1 WO 2016145751 A1 WO2016145751 A1 WO 2016145751A1 CN 2015082867 W CN2015082867 W CN 2015082867W WO 2016145751 A1 WO2016145751 A1 WO 2016145751A1
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relay
terminal
candidate
internet
priority
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English (en)
French (fr)
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郑倩
张晨璐
雷艺学
张云飞
何成名
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/22—Communication 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

Definitions

  • the present invention relates to the field of Internet of Things technologies, and in particular, to a data transmission method in an Internet of Things, a data transmission system in an Internet of Things, an Internet of Things device, a terminal, and an Internet of Things system.
  • the Internet of Things (MTC) application is recognized as the main requirement of 5G networks and the main driving force of 5G networks.
  • massive, low-cost, small data packets, low latency, low power consumption are Its important features, for example, in IOT scenarios such as smart meter reading (water meters, electricity meters, gas meters), smart homes, etc., the number of IoT devices is far greater than the data of smart terminals (such as mobile phones, pads, etc.), therefore, users Very sensitive to the cost and power consumption of the Internet of Things.
  • relay terminals such as mobile phones and pads with Relay function
  • the relay terminals will aggregate and relay data of IoT devices to make things
  • Networked devices can upload data to the base station.
  • the current selection algorithm of the relay terminal is mainly based on the centralized control scheme of the eNB (base station), that is, the eNB selects an optimal medium according to the channel shield of the available relay terminal and the base station and the Internet of Things device. Following the terminal as an aid.
  • the centralized control scheme based on eNB can effectively meet the low power consumption or low cost requirements of IoT devices, when the Internet of Things contains massive IoT devices, the management complexity of such schemes is very high.
  • the technical solution does not consider the relay capability to be limited, but in fact, the relay terminal aggregates the forwarding traffic, which involves the traffic of the relay terminal and the carrier network, the signaling processing capability and the energy consumption of the relay terminal.
  • the relay terminal cannot be assumed to be a relay entity that can serve as an IoT device without restriction. For example, in some application scenarios, the relay terminal can only support 15 IoT devices to access at the same time.
  • the present invention is based on the above problems, and proposes a new technical solution, which can realize the signaling processing capability and energy consumption of each terminal in the Internet of Things when selecting a relay terminal, and each terminal separately
  • the channel quality of IoT devices and base stations and the data service requirements of IoT devices select optimal relay terminals for IoT devices, and then select optimal relay paths for IoT devices.
  • an aspect of the present invention provides a data transmission method in an Internet of Things, where the Internet of Things device in the Internet of Things includes: a plurality of terminals in a serving cell where the IoT device is located Transmitting a relay to find signaling; receiving a relay seeking signaling feedback sent by at least one terminal, and using the at least one terminal as a candidate relay terminal in the candidate relay terminal set of the IoT device; according to the received
  • the candidate relay terminal collects signaling feedback of the relay of each candidate relay terminal, determines a target relay terminal set of the IoT device, and sends the target relay terminal set to the target relay terminal set Relay application signaling, to apply for forwarding, by the target relay terminal, uplink data sent to a device having a base station function in the serving cell, where the multiple terminals include the at least one terminal.
  • multiple terminals can be forwarded according to their current relay conditions (eg, whether the terminal supports forwarding for the Internet of Things device) Whether the uplink data sent by the device with the base station function in the current cell, whether the terminal starts the service for forwarding the uplink data, whether the terminal is idle, whether the current time-frequency resource of the terminal is higher than the time-frequency resource required for forwarding the uplink data, and the terminal support The maximum number of relay connections, etc.) determines whether to respond to the relay of the IoT device to find signaling, if the current relay condition is ideal, respond, and send a relay to find signaling feedback, so that the IoT device will send a relay to find
  • the terminal with signaling feedback is used as a candidate relay terminal, and further, according to the relay seeking signaling feedback, the terminal with better relay condition is further selected as the target relay terminal from the candidate relay terminal set.
  • the uplink data sent by the device so as to realize the signaling processing capability and energy consumption of the integrated terminal, and select a better relay path to implement data forwarding.
  • the device having the function of the base station includes a base station, a micro cell base station implemented by a communication device (such as a smart phone, etc.), and the like.
  • the relay finding signaling feedback includes: a first channel quality of the IoT device to each of the candidate relay terminals and/or each of the candidate relay terminals to Determining a second channel quality of the device having a base station function; and determining, according to the received relay seeking signaling feedback of each candidate relay terminal in the candidate relay terminal set, determining a target of the Internet of Things device And following the terminal set, specifically: calculating, according to the first channel quality and/or the second channel quality corresponding to each of the candidate relay terminals, the each of the candidate relay terminals Corresponding channel quality of the corresponding IoT device to the device having the base station function; determining each of the candidates according to the equivalent channel quality corresponding to each of the candidate relay terminals And determining, by the terminal, the candidate priority of the terminal in the candidate relay terminal set; determining whether the candidate priority of any candidate relay terminal in the candidate relay terminal set is higher than a preset candidate priority, and the determination result is And the candidate relay terminal is used as the target relay terminal in the
  • the IoT device corresponding to each of the candidate relay terminals can be accurately calculated to have the first channel quality and/or the second channel quality corresponding to each candidate relay terminal.
  • the equivalent channel quality of the base station-enabled device, and then the candidate priority of each candidate relay terminal in the candidate relay terminal set can be determined.
  • the candidate relay terminal can be further used as the target relay terminal with better current relay conditions, so as to implement the signaling processing capability and energy consumption of each terminal in the integrated Internet of Things, and each terminal.
  • There are various algorithms for equivalent channel quality which may be some mathematical statistical methods or curve fitting functions, or may be simplified to take
  • the relay application signaling includes: a candidate priority of the target relay terminal in the target relay terminal set and/or a service of the Internet of Things device a priority level; and after transmitting the relay application signaling to each of the target relay terminals in the target relay terminal set, if any target relay terminal in the target relay terminal set is received, And determining, by the relay application signaling feedback information, whether the relay application signaling feedback information sent by the any target relay terminal is the first one received in the received at least one relay application signaling feedback information. Following the application of the signaling feedback information, and when the determination result is yes, the any target relay terminal is used as the final relay terminal of the Internet of Things device, and is forwarded to the base station by the final relay terminal.
  • the relay application signaling is sent to each target relay terminal, if the relay application signaling feedback information sent by any target relay terminal in the target relay terminal set is received, further judgment is performed. Whether the relay application signaling feedback information sent by the target relay terminal is the first received relay application signaling feedback information in the received at least one relay application signaling feedback information, and if yes, the any The target relay terminal is a target relay terminal with the best relay condition in the target relay terminal set, and the forwarding path corresponding to the target relay terminal is also an optimal relay path for the IoT device to forward data, corresponding to the target relay terminal. The rate and efficiency of data forwarding is also the highest.
  • any target relay terminal can be selected as the final relay terminal to realize the signaling processing capability and energy consumption of each terminal in the integrated Internet of Things.
  • the terminal separately selects the optimal relay terminal for the IoT device and the channel quality of the IoT device and the base station, as well as the service requirements of the IoT device. Select the optimal path to the relay apparatus; conversely, if not received within a predetermined time to the target relay terminal set any target relay terminal transmitted Following the application of the signaling feedback information, it is stated that the current relay condition of each target relay terminal of the target relay terminal set is not sufficient to provide the relay service for the IoT device, and the relay seeking signaling needs to be resent to multiple terminals. To re-apply the relay terminal with better relay conditions to complete data forwarding.
  • Another aspect of the present invention provides a data transmission system in the Internet of Things, for the Internet of Things device in the Internet of Things, comprising: a first sending unit, and a plurality of serving cells in which the IoT device is located
  • the terminal sends a relay to find signaling;
  • the receiving unit receives the relay seeking signaling feedback sent by the at least one terminal, and uses the at least one terminal as a candidate relay terminal in the candidate relay terminal set of the Internet of Things device Determining a unit, determining, according to the received relay seeking signaling feedback of each candidate relay terminal in the candidate relay terminal set, determining a target relay terminal set of the Internet of Things device;
  • the target relay terminal in the target relay terminal group sends the relay application signaling to apply for forwarding the uplink data sent by the target relay terminal to the device having the base station function in the serving cell, where the A plurality of terminals includes the at least one terminal.
  • multiple terminals can be forwarded according to their current relay conditions (eg, whether the terminal supports forwarding for the Internet of Things device) Whether the uplink data sent by the device with the base station function in the current cell, whether the terminal starts the service for forwarding the uplink data, whether the terminal is idle, whether the current time-frequency resource of the terminal is higher than the time-frequency resource required for forwarding the uplink data, and the terminal support The maximum number of relay connections, etc.) determines whether to respond to the relay of the IoT device to find signaling, if the current relay condition is ideal, respond, and send a relay to find signaling feedback, so that the IoT device will send a relay to find
  • the terminal for signaling feedback is used as a candidate relay terminal, and further, according to the relay seeking signaling feedback, the terminal with better relay condition is further selected as the target relay terminal from the candidate relay terminal set, and each target relay terminal is concentrated.
  • Some target relay terminals send relay application signaling to apply for better relay conditions such as relay capability Standard forward relay terminal transmits uplink data to the base station having the function of the apparatus in the serving cell, thereby realizing the signaling processing capacity and energy consumption of the integrated terminal, selected to achieve superior forwarding data relay path.
  • the device having the function of the base station includes a base station, a micro cell base station implemented by a communication device (such as a smart phone, etc.), and the like.
  • the relay finding signaling feedback includes: the object association a first channel quality of the network device to each of the candidate relay terminals and/or a second channel quality of each of the candidate relay terminals to the device having the base station function; and the determining unit is specifically configured to: Computing the Internet of Things corresponding to each of the candidate relay terminals according to the first channel quality and/or the second channel quality corresponding to each of the candidate relay terminals Equivalent channel quality of the device to the device having the base station function; determining, according to the equivalent channel quality corresponding to each of the candidate relay terminals, each of the candidate relay terminals in the candidate a candidate priority level in the terminal set; determining whether the candidate priority of any candidate relay terminal in the candidate relay terminal set is higher than a preset candidate priority, and if the judgment result is yes, a candidate relay terminal as a target relay terminal in the target relay terminal set, and a candidate priority of the target relay terminal in the target relay terminal set and the target relay terminal are in the Candidate The same concentration of candidate terminal
  • the IoT device corresponding to each of the candidate relay terminals can be accurately calculated to have the first channel quality and/or the second channel quality corresponding to each candidate relay terminal.
  • the equivalent channel quality of the base station-enabled device, and then the candidate priority of each candidate relay terminal in the candidate relay terminal set can be determined.
  • the channel quality of the IoT device to the any candidate relay terminal and the any candidate relay terminal to the device with the base station function is If the value is higher, the candidate relay terminal can be further used as the target relay terminal with better current relay conditions, so as to implement the signaling processing capability and energy consumption of each terminal in the integrated Internet of Things, and each terminal. Separate the channel quality of the IoT device and the base station, select a better relay terminal for the IoT device, and then select a better relay path for the IoT device, and finally improve the data. The rate and efficiency of forwarding improve the system data processing rate of the entire Internet of Things.
  • there are many algorithms for equivalent channel quality which can be some mathematical statistical methods or curve fitting functions, or can be simplified to take the first channel quality. And a weighted average of the quality of the second channel.
  • the relay application signaling includes: a candidate priority of the target relay terminal in the target relay terminal set and/or a service of the Internet of Things device a priority unit; and a judging unit, each of the sets of the target relay terminal After the target relay terminal sends the relay application signaling, if the relay application signaling feedback information sent by any target relay terminal in the target relay terminal set is received, the target relay is determined.
  • the relay application signaling feedback information sent by the terminal is the first relay application signaling feedback information received in the received at least one relay application signaling feedback information, and when the determination result is yes, the Any target relay terminal as a final relay terminal of the IoT device to forward uplink data sent to the device having the base station function by the final relay terminal; and the first transmitting unit is further used for After transmitting the relay application signaling to the target relay terminal, if the relay application signaling feedback information sent by any target relay terminal in the target relay terminal set is not received within a predetermined time, And then retransmit the relay seeking signaling to the plurality of terminals.
  • the relay application signaling is sent to each target relay terminal, if the relay application signaling feedback information sent by any target relay terminal in the target relay terminal set is received, further judgment is performed. Whether the relay application signaling feedback information sent by the target relay terminal is the first received relay application signaling feedback information in the received at least one relay application signaling feedback information, and if yes, the any The target relay terminal is a target relay terminal with the best relay condition in the target relay terminal set, and the forwarding path corresponding to the target relay terminal is also an optimal relay path for the IoT device to forward data, corresponding to the target relay terminal. The rate and efficiency of data forwarding is also the highest.
  • any target relay terminal can be selected as the final relay terminal to realize the signaling processing capability and energy consumption of each terminal in the integrated Internet of Things.
  • the terminal separately selects the optimal relay terminal for the IoT device and the channel quality of the IoT device and the base station, as well as the service requirements of the IoT device.
  • the device selects an optimal relay path; if, if the relay application signaling feedback information sent by any target relay terminal in the target relay terminal set is not received within a predetermined time, then each target relay terminal set is specified.
  • the current relay conditions of the target relay terminals are not sufficient to provide relay services for the IoT devices. Therefore, it is necessary to re-send the relay seeking signaling to multiple terminals to re-apply the relay terminal with better current relay conditions to complete the data. Forwarding.
  • Yet another aspect of the present invention provides an Internet of Things device, including a processor and a memory, wherein the memory stores a set of program codes, and the processor is configured to call program code stored in the memory for Do the following:
  • the target relay terminal in the target relay terminal group sends the relay application signaling to apply for forwarding the uplink data sent by the target relay terminal to the device having the base station function in the serving cell, where the A plurality of terminals includes the at least one terminal.
  • the relay finding signaling feedback includes: a first channel quality of the IoT device to each of the candidate relay terminals and/or each of the candidate relay terminals to a second channel quality of the device having a base station function;
  • the processor determines, according to the received relaying signaling feedback of each candidate relay terminal in the candidate relay terminal set, the target relay terminal set of the Internet of Things device, Specifically include:
  • the relay application signaling includes: a candidate priority of the target relay terminal in the target relay terminal set and/or a service of the Internet of Things device Priority;
  • the processor sends the relay application signaling to the target relay terminal in the target relay terminal set
  • the processor receives the target relay terminal set Determining, by the target relay terminal, the relay application signaling feedback information, determining whether the relay application signaling feedback information sent by the target relay terminal is the received at least one relay application signaling feedback information
  • the processor After transmitting the relay application signaling to the target relay terminal, the processor does not receive the relay application letter sent by any target relay terminal in the target relay terminal set within a predetermined time. After the feedback information is sent, the relay seeking signaling is re-transmitted to the plurality of terminals.
  • each terminal separately selects an optimal relay terminal for the IoT device with the channel quality of the IoT device and the base station and the data service requirement of the IoT device, and then selects an optimal relay path for the IoT device.
  • a further aspect of the present invention provides a data transmission method in an Internet of Things, which is used in a terminal in the Internet of Things, the terminal is connected to an Internet of Things device in the above technical solution, and the data transmission method includes
  • the data transmission method includes
  • the relay seeking signaling sent by the plurality of IoT devices determining, according to the current relay condition of the terminal, whether to respond to the relay search sent by any one of the plurality of Internet of Things devices Signaling; when the determination result is yes, sending relay search signaling feedback to any of the Internet of Things devices, so that any of the Internet of Things devices can use the terminal as a candidate for any of the Internet of Things devices Following the candidate relay terminal in the terminal set, and causing any of the IoT devices to determine whether the terminal is the target relay terminal in the target relay terminal set of the IoT device, and determining to use the terminal as After the target relay terminal in the target relay terminal set, send the relay application signaling to the terminal; and receive the relay application sent by any one of the Internet of Things devices in the Internet of Things
  • the current relaying conditions when receiving the relay seeking signaling sent by the multiple IoT devices, the current relaying conditions may be used according to the current relaying conditions (such as whether the terminal supports the IoT device to forward the function to the base station in the current cell)
  • the uplink data sent by the device whether the terminal starts the service of forwarding the uplink data, whether the terminal is idle, whether the current time-frequency resource of the terminal is higher than the time-frequency resource required for forwarding the uplink data, and the maximum number of relay connections supported by the terminal, etc.
  • the relay terminal further determines whether to select the candidate relay terminal as a target relay terminal with better relay condition according to the relay seeking signaling feedback, and if the terminal is used as the target relay terminal by the Internet of Things device, Receiving the relay application signaling, and if there are multiple relay application signaling, the terminal automatically according to any of the multiple Determining priority information in relay application signaling of each of the IoT devices in the networked device, determining a feedback priority of each of the IoT devices, so that the plurality of the IoT devices Each of the IoT devices finally accurately determines whether to forward the uplink data through the terminal according to the feedback priority, so that the signaling processing capability of each terminal in the IoT device can be integrated when the relay terminal is selected.
  • the priority information includes: a candidate priority of the terminal in a candidate relay terminal set of each of the any IoT devices, and/or each of the any ones a service priority of the IoT device, and the candidate priority of the terminal in the target relay terminal set is the same as the candidate priority of the terminal in the candidate relay terminal set; and the basis
  • the priority information in the relay application signaling of each of the plurality of IoT devices determines the feedback priority of each of the IoT devices, specifically: each The feedback priority of any of the IoT devices is positively correlated with the candidate priority and/or service priority of each of the IoT devices; and if the terminal is in any of the plurality of IoT devices a candidate priority in the target relay terminal set of the first IoT device, and a candidate in the target relay terminal set of the second IoT device of the plurality of IoT devices Same priority And / or the first things device excellent service Determining the same priority as the second IoT device, determining that the first IoT
  • the feedback priority of each of the IoT devices is positively correlated with the candidate priority and/or service priority of each of the IoT devices, that is, each of the described
  • the relay application signaling feedback sent by the terminal, and the service priority of the IoT device may be mapped to a QCI (QoS Class Identifier) table based on its QoS (Quality of Service) requirement, and the value ranges from 1 to 9.
  • QCI QoS Class Identifier
  • the method before the sending the relay application signaling feedback information to each of the IoT devices in sequence, the method further includes: sequentially determining, according to the feedback priority from high to low, sequentially determining Whether the currently available time-frequency resource of the terminal is smaller than the required time-frequency resource of each of the plurality of IoT devices; if it is determined that the currently available time-frequency resource is smaller than the first designation
  • the required time-frequency resource of the Internet of Things device does not send the relay application signaling feedback information to the first designated Internet of Things device, and sequentially determines the order according to the feedback priority from high to low.
  • the current available time-frequency resource is greater than or equal to the required time-frequency resource of the second designated IoT device and/or the total number of the relay application signaling feedback information currently sent by the terminal is greater than the maximum number of relay connections
  • the total number of required time-frequency resources and/or the relay application signaling feedback information that is greater than or equal to the second designated IoT device is less than the maximum Sending the relay application signaling feedback information to the second designated IoT device, and not transmitting the relay application signaling feedback information to the second designated Internet of Things device, where
  • the feedback priority of the second designated IoT device is less than or equal to the feedback priority of the first IoT device, wherein the first designated IoT device and the second designated IoT device are multiple An IoT device in any of the Internet of Things devices.
  • a relay application letter is sent to each of the IoT devices in turn.
  • it may be sequentially determined according to the order of the feedback priority from high to low, whether the current available time-frequency resource of the terminal is smaller than each of the plurality of the Internet of Things devices.
  • the time-frequency resource is required. If the currently available time-frequency resource is smaller than the required time-frequency resource of the first designated IoT device, the current available time-frequency resource of the terminal is insufficient to provide the relay service for the first designated IoT device.
  • Further determining whether the current available time-frequency resource is greater than or equal to the required time-frequency resource of the second designated IoT device with a lower feedback priority and/or the transmitted terminal may be sequentially determined according to the order of the feedback priority from high to low. Whether the total number of application signaling feedback information is less than or equal to the maximum number of relay connections, if the currently available time-frequency resource is greater than or equal to the required time-frequency resource and/or terminal of the second designated IoT device with lower feedback priority If the total number of sent relay application signaling feedback information is less than or equal to the maximum number of relay connections, the current relay condition of the terminal is good.
  • the resources are sufficient, the relay capability has not reached the upper limit, and the relay capability is still sufficient, which is sufficient to provide relay service for the second designated IoT device with lower feedback priority. Otherwise, the current relay condition of the terminal is relatively poor.
  • the relay application signaling feedback information is not sent to the second designated IoT device after the capability is insufficient to provide the relay service for the second designated IoT device with lower feedback priority.
  • the current relay condition includes: whether the terminal supports forwarding, for the any Internet of Things device, uplink data sent to a device having a base station function in a current cell, the terminal Whether the service for forwarding the uplink data is enabled, whether the terminal is idle, whether the power of the terminal is higher than the preset power, and whether the current time-frequency resource of the terminal is higher than the time-frequency resource required for forwarding the uplink data.
  • the maximum number of relay connections supported by the terminal, the first channel quality of the any IoT device to the terminal, the second channel quality of the terminal to the device having the base station function, and the terminal At least one condition in mobility.
  • the terminal can accurately determine whether to respond to the relay of the IoT device to find the signaling, and then filter the relay for the current relay condition such as the relay capability of the integrated terminal of the Internet of Things device. Terminals with better conditions and relay paths provide the necessary preconditions as relay terminals.
  • a further aspect of the present invention provides a data transmission system in an Internet of Things, which is used for a terminal in the Internet of Things, and the terminal is connected to an Internet of Things device in the above technical solution, and
  • the data transmission system includes: a determining unit, when receiving the relay seeking signaling sent by the plurality of IoT devices, determining, according to the current relay condition of the terminal, whether to respond to any one of the plurality of Internet of Things devices a relay seeking signaling sent by the Internet of Things device; the sending unit, when the determination result is yes, sending a relay seeking signaling feedback to any of the Internet of Things devices, so that any of the Internet of Things devices will be the terminal a candidate relay terminal as a candidate relay terminal set of any of the Internet of Things devices, and causing any of the Internet of Things devices to determine whether the terminal is used as a target of the target relay terminal of the Internet of Things device Following the terminal, and after determining that the terminal is used as the target relay terminal in the target relay terminal set, transmitting relay application signaling to the terminal; and
  • the current relaying conditions when receiving the relay seeking signaling sent by the multiple IoT devices, the current relaying conditions may be used according to the current relaying conditions (such as whether the terminal supports the IoT device to forward the function to the base station in the current cell)
  • the uplink data sent by the device whether the terminal starts the service of forwarding the uplink data, whether the terminal is idle, whether the current time-frequency resource of the terminal is higher than the time-frequency resource required for forwarding the uplink data, and the maximum number of relay connections supported by the terminal, etc.
  • the relay terminal determines whether to select the candidate relay terminal as a target relay terminal with better relay condition according to the relay seeking signaling feedback, and if the terminal is used as the target relay terminal by the Internet of Things device, Receiving the relay application signaling, and if there are multiple relay application signaling, the terminal automatically according to any of the multiple Determining priority information in relay application signaling of each of the IoT devices in the networked device, determining a feedback priority of each of the IoT devices, so that the plurality of the IoT devices Each of the IoT devices finally accurately determines whether to forward the uplink data through the terminal according to the feedback priority, so that the selection can be implemented.
  • the terminal When relaying the terminal, it can synthesize the signaling processing capability and energy consumption of each terminal in the IoT device, the channel quality of each terminal and the IoT device and the base station, and the data service requirement of the IoT device, for the Internet of Things.
  • the device selects the optimal relay terminal, and then selects the optimal relay path for the IoT device.
  • the priority information includes: a candidate priority of the terminal in a candidate relay terminal set of each of the any IoT devices, and/or each of the any ones a service priority of the IoT device, and the candidate priority of the terminal in the target relay terminal set is the same as the candidate priority of the terminal in the candidate relay terminal set;
  • the feedback priority of any of the IoT devices is positively related to the candidate priority and/or service priority of each of the IoT devices; and if the terminal is in any of the plurality of IoT devices a candidate priority in a target relay terminal set of the first Internet of Things device, and a candidate priority in a target relay terminal set of the second IoT device of the plurality of IoT devices Levels are the same, and/or the service priority of the first IoT device is the same as the service priority of the second IoT device, and then the feedback of the first IoT device and the second IoT device is determined.
  • the sending unit is further configured to: after determining the feedback priority of each of the any IoT devices, the feedback priority according to each of the any IoT devices is high to low In sequence, the relay application signaling feedback information is sent to each of the IoT devices in turn.
  • the feedback priority of each of the IoT devices is positively correlated with the candidate priority and/or service priority of each of the IoT devices, that is, each of the described
  • the relay application signaling feedback sent by the terminal, and the service priority of the IoT device may be mapped to a QCI (QoS Class Identifier) table based on its QoS (Quality of Service) requirement, and the value ranges from 1 to 9.
  • QCI QoS Class Identifier
  • the determining unit is further configured to: before sending the relay application signaling feedback information to each of the IoT devices in sequence, according to the feedback priority from high to low a sequence of sequentially determining whether the current available time-frequency resource of the terminal is smaller than a required time-frequency resource of each of the plurality of Internet of Things devices;
  • the breaking unit is further configured to: if the current available time-frequency resource is smaller than the required time-frequency resource of the first designated Internet of Things device, not sending the relay application signaling feedback information to the first designated Internet of Things device And determining, according to the order in which the feedback priority is from high to low, whether the currently available time-frequency resource is greater than or equal to a required time-frequency resource of the second designated IoT device and/or the terminal has been currently sent.
  • the sending unit is further configured to: when the currently available time-frequency resource is greater than or equal to the second designated Internet of Things device Sending, by the time-frequency resource and/or the total number of the relay application signaling feedback information, the relay application signaling feedback information to the second designated Internet of Things device, otherwise, Not transmitting the relay application signaling feedback information to the second designated IoT device, wherein a feedback priority of the second designated IoT device is less than or equal to the first Internet of Things device Feedback priority, wherein the first designated things device and the second device to specify things are a plurality of any of the IOT device things device.
  • the current available time-frequency resources of the terminal may be sequentially determined according to the order of the feedback priority from high to low. And a required time-frequency resource that is less than the required time-frequency resource of each of the any one of the Internet of Things devices, if the currently available time-frequency resource is smaller than the required time-frequency resource of the first designated IoT device, The current available time-frequency resource of the terminal is insufficient to provide the relay service for the first designated IoT device, and the current available time-frequency resource is further determined to be greater than or equal to the feedback priority according to the order of the feedback priority from high to low.
  • the required time-frequency resource of the second second designated IoT device and/or the total number of relay application signaling feedback information sent by the terminal is less than or equal to the maximum number of relay connections, if the currently available time-frequency resource is greater than or The total number of required time-frequency resources equal to the second designated IoT device with lower feedback priority and/or the relay application signaling feedback information sent by the terminal. If the number of the maximum number of trunk connections is equal to or greater than the maximum number of trunk connections, the current relay condition of the terminal is good, the trunk resources are sufficient, the relay capability has not reached the upper limit, and the relay capability is still sufficient, which is sufficient for the second designated object with lower feedback priority. The networked device provides the relay service. Otherwise, the current relay condition of the terminal is relatively poor. The relay capability is insufficient to provide the relay service for the second designated IoT device with lower feedback priority, and the second designated Internet of things is not provided. The device sends the relay application signaling feedback information.
  • a further aspect of the present invention provides a terminal, the terminal being connected to the above-described Internet of Things device, the terminal comprising a processor and a memory, wherein the memory stores a set of program codes, and the processor is used by the processor Calling the program code stored in the memory to perform the following operations:
  • the relay application signaling is sent to the terminal; when receiving the relay application signaling sent by any one of the Internet of Things devices in the Internet of Things, Determining, according to priority information in the relay application signaling of each of the any one of the Internet of Things devices, determining a feedback priority of each of the IoT devices, so as to Said Each of the IoT devices in the Internet of Things device determines whether to forward, by the terminal, uplink data sent to a device having a base station function in a serving cell, wherein the feedback priority is The priority of any IoT device to send relay application signaling feedback.
  • the priority information includes: a candidate priority of the terminal in a candidate relay terminal set of each of the any IoT devices, and/or each of the any ones a service priority of the IoT device, and the candidate priority of the terminal in the target relay terminal set is the same as the candidate priority of the terminal in the candidate relay terminal set;
  • the processor determines each of the Internet of Things according to priority information in relay application signaling of each of the any one of the Internet of Things devices
  • the feedback priority of the device includes: the feedback priority of each of the IoT devices is positively correlated with the candidate priority and/or the service priority of each of the IoT devices; and if the terminal is a candidate priority in a target relay terminal set of the first IoT device among the plurality of the Internet of Things devices, and a second of the plurality of the Internet of Things devices Determining that the candidate priority of the target relay terminal set of the Internet of Things device is the same, and/or the service priority of the first IoT device is the same as the service priority of the second IoT device An IoT device has the same feedback priority as the second IoT device; and after determining the feedback priority of each of the IoT devices, according to each of the IoT devices The feedback priority is sent from the highest to the lowest, and the relay application signaling feedback information is sent to each of the IoT devices in turn.
  • the processor further performs the following operations before sending the relay application signaling feedback information to each of the IoT devices in sequence:
  • the relay application signaling feedback information is not sent to the first designated IoT device, and Determining, in descending order of the feedback priority, whether the currently available time-frequency resource is greater than or equal to a required time-frequency resource of the second designated IoT device and/or the middle terminal that the terminal has currently sent Whether the total number of application signaling feedback information is greater than the maximum number of relay connections; the current available time-frequency resource is greater than or equal to the required time-frequency resource of the second designated Internet of Things device and/or the relay application Sending the relay application signaling feedback information to the second designated IoT device when the total number of signaling feedback information is less than the maximum number of relay connections, otherwise, not to the second designated object
  • the network device sends the relay application signaling feedback information
  • the technical solution by setting the data transmission system in the Internet of Things in the terminal, it is possible to realize the signaling processing capability and the energy consumption situation of each terminal in the Internet of Things when selecting the relay terminal, and each terminal
  • the channel quality of the IoT device and the base station and the data service requirements of the IoT device respectively select the optimal relay terminal for the IoT device, and then select the optimal relay path for the IoT device.
  • a further aspect of the present invention provides an Internet of Things system, comprising: a device having a base station function; the Internet of Things device as described in the above technical solution; and the method according to the above technical solution Terminal.
  • the Internet of Things system consisting of a device having a base station function, an Internet of Things device, and a terminal, it is possible to realize the signaling processing capability of each terminal in the IoT device when the relay terminal is selected.
  • the energy consumption situation, the channel quality of each terminal and the IoT device and the base station, and the data service requirements of the IoT device select the optimal relay terminal for the IoT device, and then select the optimal relay path for the IoT device.
  • the Internet of Things system comprises an Internet of Things system based on an LTE network.
  • the Internet of Things system includes, but is not limited to, an Internet of Things system based on an LTE network, and may also be an Internet of Things system based on a 3G network, or although the advancement of technology may be an Internet of Things system based on a network such as 5G.
  • the technical solution of the present invention it is possible to realize the signaling processing capability and energy consumption of each terminal in the Internet of Things when selecting a relay terminal, the channel quality of each terminal and the IoT device and the base station, and the object.
  • the data service requirement of the networked device selects the optimal relay terminal for the IoT device, and then selects the optimal relay path for the IoT device.
  • FIG. 1 is a flow chart showing a data transmission method in an Internet of Things according to an embodiment of the present invention
  • FIG. 2 is a flow chart showing a data transmission method in an Internet of Things according to another embodiment of the present invention.
  • FIG. 3 is a flow chart showing a data transmission method in an Internet of Things according to still another embodiment of the present invention.
  • FIG. 4 is a block diagram showing the structure of a data transmission system in the Internet of Things according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of an Internet of Things device according to an embodiment of the present invention.
  • FIG. 6 is a block diagram showing the structure of a data transmission system in the Internet of Things according to another embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
  • FIG. 8 is a block diagram showing the structure of an Internet of Things system according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram showing the principle of a data transmission system in the Internet of Things according to an embodiment of the present invention.
  • FIG. 10 is a block diagram showing the structure of an Internet of Things device according to another embodiment of the present invention.
  • FIG. 11 is a block diagram showing the structure of a terminal according to another embodiment of the present invention.
  • FIG. 1 is a flow chart showing a data transmission method in an Internet of Things according to an embodiment of the present invention.
  • a data transmission method in an Internet of Things includes: Step 102: Sending a relay seeking signaling to a plurality of terminals in a serving cell where the IoT device is located; 104. Receive relay lookup signaling feedback sent by at least one terminal, and use the at least one terminal as a candidate relay terminal in the candidate relay terminal set of the Internet of Things device; Step 106, according to the received Determining, by the candidate relay terminal, the relay of each candidate relay terminal to find signaling feedback, determining a target relay terminal set of the Internet of Things device; and step 108, targeting the target relay terminal in the target relay terminal And transmitting, by the target relay terminal, uplink data sent to a device having a base station function in the serving cell, where the multiple terminals include the at least one terminal.
  • multiple terminals can be forwarded according to their current relay conditions (eg, whether the terminal supports forwarding for the Internet of Things device) Whether the uplink data sent by the device with the base station function in the current cell, whether the terminal starts the service for forwarding the uplink data, whether the terminal is idle, whether the current time-frequency resource of the terminal is higher than the time-frequency resource required for forwarding the uplink data, and the terminal support Maximum relay The number of connections, etc.) determines whether to respond to the relay of the IoT device to find signaling, if the current relay condition is ideal, respond, and send a relay to find signaling feedback, so that the IoT device will send a relay to find signaling feedback.
  • the current relay condition e.g, whether the terminal supports forwarding for the Internet of Things device
  • the terminal further filters out the terminal with better relay condition as the target relay terminal from the candidate relay terminal set according to the relay seeking signaling feedback, and points to each part or part of the target relay terminal set.
  • the target relay terminal sends the relay application signaling to apply for forwarding the uplink data sent to the device with the base station function in the serving cell by the target relay terminal with better relay conditions such as the relay capability, thereby implementing the letter of the integrated terminal.
  • the device having the function of the base station includes a base station, a micro cell base station implemented by a communication device (such as a smart phone, etc.), and the like.
  • the relay finding signaling feedback includes: a first channel quality of the IoT device to each of the candidate relay terminals and/or each of the candidate relay terminals to Determining a second channel quality of the device having a base station function; and determining, according to the received relay seeking signaling feedback of each candidate relay terminal in the candidate relay terminal set, determining a target of the Internet of Things device And following the terminal set, specifically: calculating, according to the first channel quality and/or the second channel quality corresponding to each of the candidate relay terminals, the each of the candidate relay terminals Corresponding channel quality of the corresponding IoT device to the device having the base station function; determining each of the candidates according to the equivalent channel quality corresponding to each of the candidate relay terminals And determining, by the terminal, the candidate priority of the terminal in the candidate relay terminal set; determining whether the candidate priority of any candidate relay terminal in the candidate relay terminal set is higher than a preset candidate priority, and the determination result is And the candidate relay terminal is used as the target relay terminal in the
  • the IoT device corresponding to each of the candidate relay terminals can be accurately calculated to have the first channel quality and/or the second channel quality corresponding to each candidate relay terminal.
  • the equivalent channel quality of the base station-enabled device, and then the candidate priority of each candidate relay terminal in the candidate relay terminal set can be determined.
  • any candidate relay terminal may be further used as the current A target relay terminal with better relay conditions to achieve the signaling processing capability and energy consumption of each terminal in the integrated Internet of Things, the channel quality of each terminal and the IoT device and the base station, and the selection of the Internet of Things device
  • the better relay terminal and then select the better relay path for the IoT device, and finally improve the rate and efficiency of data forwarding, and improve the system data processing rate of the entire IoT device.
  • the equivalent channel quality algorithm has A variety of, can be some mathematical statistical methods or curve fitting functions, can also be simplified to take the weighted average of the first channel quality and the second channel quality.
  • the relay application signaling includes: a candidate priority of the target relay terminal in the target relay terminal set and/or a service of the Internet of Things device a priority level; and after transmitting the relay application signaling to each of the target relay terminals in the target relay terminal set, if any target relay terminal in the target relay terminal set is received, And determining, by the relay application signaling feedback information, whether the relay application signaling feedback information sent by the any target relay terminal is the first one received in the received at least one relay application signaling feedback information. Following the application of the signaling feedback information, and when the determination result is yes, the any target relay terminal is used as the final relay terminal of the Internet of Things device, and is forwarded to the base station by the final relay terminal.
  • the relay application signaling is sent to each target relay terminal, if the relay application signaling feedback information sent by any target relay terminal in the target relay terminal set is received, further judgment is performed. Whether the relay application signaling feedback information sent by the target relay terminal is the first received relay application signaling feedback information in the received at least one relay application signaling feedback information, and if yes, the any The target relay terminal is a target relay terminal with the best relay condition in the target relay terminal set, and the forwarding path corresponding to the target relay terminal is also an optimal relay path for the IoT device to forward data, corresponding to the target relay terminal. The rate and efficiency of data forwarding is also the highest. Therefore, you can choose to use any target relay terminal as the final relay terminal.
  • the terminal Realize the signaling processing capability and energy consumption of each terminal in the integrated Internet of Things, the channel quality of each terminal and the IoT device and the base station, and the service requirements of the IoT device, and select the optimal relay for the IoT device.
  • the terminal, and then the optimal relay path is selected for the IoT device; if the relay application signaling feedback information sent by any target relay terminal in the target relay terminal set is not received within the predetermined time, the target is If the current relay condition of each target relay terminal of the relay terminal set is insufficient to provide relay service for the IoT device, it is necessary to resend the relay seeking signaling to multiple terminals to re-apply the current relay condition.
  • the relay terminal completes the forwarding of data.
  • FIG. 2 is a flow chart showing a data transmission method in the Internet of Things according to another embodiment of the present invention.
  • a data transmission method in the Internet of Things includes: Step 202, when receiving relay seeking signaling sent by multiple IoT devices, according to the terminal The current relay condition determines whether to respond to the relay seeking signaling sent by any one of the plurality of Internet of Things devices; and in step 204, when the determination result is yes, sending to any of the Internet of Things devices Following the search for signaling feedback, so that any of the Internet of Things devices will use the terminal as a candidate relay terminal in the candidate relay terminal set of any of the Internet of Things devices, and cause any of the Internet of Things devices to determine whether Using the terminal as a target relay terminal in the target relay terminal set of the Internet of Things device, and sending the terminal to the terminal after determining that the terminal is the target relay terminal in the target relay terminal set Following the application signaling; step 206, when receiving the relay application signaling sent by any one of the Internet of Things devices in the Internet of Things, according to each of the plurality of the Internet of Things devices An object Determining priority information in the
  • the current relaying conditions when receiving the relay seeking signaling sent by the multiple IoT devices, the current relaying conditions may be used according to the current relaying conditions (such as whether the terminal supports the IoT device to forward the function to the base station in the current cell) Whether the uplink data sent by the device, whether the terminal starts the service for forwarding the uplink data, whether the terminal is idle, and whether the current time-frequency resource of the terminal is higher than the number of forwarded uplinks According to the required time-frequency resources, the maximum number of relay connections supported by the terminal, etc., determine whether to respond to the relay of multiple IoT devices to find signaling, and if the current relay conditions are ideal, respond to any Internet of Things.
  • the current relaying conditions such as whether the terminal supports the IoT device to forward the function to the base station in the current cell
  • the device sends a relay to search for signaling feedback, so that the IoT device uses the terminal as a candidate relay terminal, and further determines whether to select the candidate relay terminal as a better relay condition according to the relay seeking signaling feedback.
  • the relay terminal receives the relay application signaling if the terminal is used as the target relay terminal by the IoT device, and if the relay application signaling is multiple, the terminal automatically according to any one of the multiple Determining priority information in relay application signaling of each of the IoT devices in the networked device, determining a feedback priority of each of the IoT devices, so that the plurality of the IoT devices Each of the IoT devices finally accurately determines whether to forward the uplink data through the terminal according to the feedback priority, so that the Internet of Things can be integrated when the relay terminal is selected.
  • the priority information includes: a candidate priority of the terminal in a candidate relay terminal set of each of the any IoT devices, and/or each of the any ones a service priority of the IoT device, and the candidate priority of the terminal in the target relay terminal set is the same as the candidate priority of the terminal in the candidate relay terminal set; and the basis
  • the priority information in the relay application signaling of each of the plurality of IoT devices determines the feedback priority of each of the IoT devices, specifically: each The feedback priority of any of the IoT devices is positively correlated with the candidate priority and/or service priority of each of the IoT devices; and if the terminal is in any of the plurality of IoT devices a candidate priority in the target relay terminal set of the first IoT device, and a candidate in the target relay terminal set of the second IoT device of the plurality of IoT devices Same priority And/or determining that the service priority of the first IoT device is the same as the service priority of the second IoT device,
  • the feedback priority of each of the IoT devices is positively correlated with the candidate priority and/or service priority of each of the IoT devices, that is, each of the described
  • the relay application signaling feedback sent by the terminal, and the service priority of the IoT device may be mapped to a QCI (QoS Class Identifier) table based on its QoS (Quality of Service) requirement, and the value ranges from 1 to 9.
  • QCI QoS Class Identifier
  • the method before the sending the relay application signaling feedback information to each of the IoT devices in sequence, the method further includes: sequentially determining, according to the feedback priority from high to low, sequentially determining Whether the currently available time-frequency resource of the terminal is smaller than the required time-frequency resource of each of the plurality of IoT devices; if it is determined that the currently available time-frequency resource is smaller than the first designation
  • the required time-frequency resource of the Internet of Things device does not send the relay application signaling feedback information to the first designated Internet of Things device, and sequentially determines the order according to the feedback priority from high to low.
  • the current available time-frequency resource is greater than or equal to the required time-frequency resource of the second designated IoT device and/or the total number of the relay application signaling feedback information currently sent by the terminal is greater than the maximum number of relay connections
  • the total number of required time-frequency resources and/or the relay application signaling feedback information that is greater than or equal to the second designated IoT device is less than the maximum Sending the relay application signaling feedback information to the second designated IoT device, and not transmitting the relay application signaling feedback information to the second designated Internet of Things device, where
  • the feedback priority of the second designated IoT device is less than or equal to the feedback priority of the first IoT device, wherein the first designated IoT device and the second designated IoT device are multiple An IoT device in any of the Internet of Things devices.
  • the current available time-frequency resources of the terminal may be sequentially determined according to the order of the feedback priority from high to low. And a required time-frequency resource that is less than the required time-frequency resource of each of the any one of the Internet of Things devices, if the currently available time-frequency resource is smaller than the required time-frequency resource of the first designated IoT device, The current available time-frequency resources of the terminal are not sufficient for the first designation.
  • the IoT device provides a relay service, and may further determine, according to the feedback priority from high to low, whether the current available time-frequency resource is greater than or equal to the required time-frequency of the second designated IoT device with a lower feedback priority.
  • the current relay condition of the terminal is good, the relay resources are sufficient, and the relay capability is still sufficient. If the upper limit is not reached, the relay capability is still sufficient to provide relay service for the second designated IoT device with lower feedback priority. Otherwise, the current relay condition of the terminal is poor, and the relay capability is insufficient to give feedback priority.
  • the lower second designated IoT device provides a relay service, and the relay request signaling feedback is not sent to the second designated IoT device. Information.
  • the current relay condition includes: whether the terminal supports forwarding, for the any Internet of Things device, uplink data sent to a device having a base station function in a current cell, the terminal Whether the service for forwarding the uplink data is enabled, whether the terminal is idle, whether the power of the terminal is higher than the preset power, and whether the current time-frequency resource of the terminal is higher than the time-frequency resource required for forwarding the uplink data.
  • the maximum number of relay connections supported by the terminal, the first channel quality of the any IoT device to the terminal, the second channel quality of the terminal to the device having the base station function, and the terminal At least one condition in mobility.
  • the terminal can accurately determine whether to respond to the relay of the IoT device to find the signaling, and then filter the relay for the current relay condition such as the relay capability of the integrated terminal of the Internet of Things device. Terminals with better conditions and relay paths provide the necessary preconditions as relay terminals.
  • FIG. 3 is a flow chart showing a data transmission method in the Internet of Things according to still another embodiment of the present invention.
  • a data transmission method in the Internet of Things includes:
  • Step 302 The Device (Internet of Things device) sends a relay seeking signaling, finds and determines a candidate UE relay set (candidate relay terminal set), and returns a relay according to each candidate relay terminal. Find signaling feedback and determine the target relay terminal set;
  • each target relay terminal in the target UE Relay group selects it as the auxiliary candidate priority value and the service priority value of the device from the small to the large to be queued for multiple devices according to the Device;
  • step 306 it is determined whether the queue is empty. If the determination result is no, the process proceeds to step 308; otherwise, the process proceeds to step 304.
  • step 308 the target UE relay determines whether it is the triggering time of the priority algorithm according to the eNB broadcast information. If the determination result is yes, step 310 is performed; otherwise, step 308 is performed.
  • Step 312 Determine whether the current available time-frequency resource of the target UE Relay can satisfy the service data transmission of the i-th device in the queue.
  • step 314 when the determination result is yes, it is determined whether the remaining available resources of the target UE Relay are 0 or the number of relays reaches the upper limit.
  • Step 316 When the judgment result is no, the queue cache is updated to determine whether the queue is analyzed.
  • Step 318 When it is determined that the current available time-frequency resource of the target UE Relay can meet the service data transmission of the i-th device in the queue, the corresponding UE relay auxiliary information is fed back to the Device.
  • step 320 the device feeds back the target UE Relay that is the first to arrive as the final relay terminal, and if the device does not receive the feedback within the T period, the device initiates the search process again.
  • FIG. 4 is a block diagram showing the structure of a data transmission system in the Internet of Things according to an embodiment of the present invention.
  • the data transmission system 400 in the Internet of Things includes: a first sending unit 402, which sends a relay search to a plurality of terminals in a serving cell where the IoT device is located.
  • the receiving unit 404 receives the relay seeking signaling feedback sent by the at least one terminal, and uses the at least one terminal as a candidate relay terminal in the candidate relay terminal set of the Internet of Things device; the determining unit 406, According to the received candidate relay Determining, by the relay of each candidate relay terminal, the signaling feedback to determine the target relay terminal set of the IoT device; the second sending unit 408, the target relay terminal concentrated to the target relay terminal And transmitting, by the target relay terminal, uplink data sent to a device having a base station function in the serving cell, where the multiple terminals include the at least one terminal.
  • multiple terminals can be forwarded according to their current relay conditions (eg, whether the terminal supports forwarding for the Internet of Things device) Whether the uplink data sent by the device with the base station function in the current cell, whether the terminal starts the service for forwarding the uplink data, whether the terminal is idle, whether the current time-frequency resource of the terminal is higher than the time-frequency resource required for forwarding the uplink data, and the terminal support The maximum number of relay connections, etc.) determines whether to respond to the relay of the IoT device to find signaling, if the current relay condition is ideal, respond, and send a relay to find signaling feedback, so that the IoT device will send a relay to find
  • the terminal for signaling feedback is used as a candidate relay terminal, and further, according to the relay seeking signaling feedback, the terminal with better relay condition is further selected as the target relay terminal from the candidate relay terminal set, and each target relay terminal is concentrated.
  • Some target relay terminals send relay application signaling to apply for better relay conditions such as relay capability Standard forward relay terminal transmits uplink data to the base station having the function of the apparatus in the serving cell, thereby realizing the signaling processing capacity and energy consumption of the integrated terminal, selected to achieve superior forwarding data relay path.
  • the device having the function of the base station includes a base station, a micro cell base station implemented by a communication device (such as a smart phone, etc.), and the like.
  • the relay finding signaling feedback includes: a first channel quality of the IoT device to each of the candidate relay terminals and/or each of the candidate relay terminals to a second channel quality of the device having a base station function; and the determining unit 406 is specifically configured to: according to the first channel quality and/or the first corresponding to each of the candidate relay terminals The two channel quality calculates an equivalent channel quality of the IoT device corresponding to each of the candidate relay terminals to the device having the base station function; according to each of the candidate relay terminals Determining, by the corresponding channel quality, a candidate priority of each candidate relay terminal in the candidate relay terminal set; determining a candidate of any candidate relay terminal in the candidate relay terminal set Whether the priority is higher than the preset candidate priority, and when the determination result is yes, the any candidate relay terminal is used as the target of the target relay terminal set a relay terminal, and the candidate priority of the target relay terminal in the target relay terminal set is the same as the candidate priority of the target relay terminal in the candidate relay
  • the IoT device corresponding to each of the candidate relay terminals can be accurately calculated to have the first channel quality and/or the second channel quality corresponding to each candidate relay terminal.
  • the equivalent channel quality of the base station-enabled device, and then the candidate priority of each candidate relay terminal in the candidate relay terminal set can be determined.
  • the channel quality of the IoT device to the any candidate relay terminal and the any candidate relay terminal to the device with the base station function is If the value is higher, the candidate relay terminal can be further used as the target relay terminal with better current relay conditions, so as to implement the signaling processing capability and energy consumption of each terminal in the integrated Internet of Things, and each terminal. Separate the channel quality of the IoT device and the base station, select a better relay terminal for the IoT device, and then select a better relay path for the IoT device, and finally improve the data. The rate and efficiency of forwarding improve the system data processing rate of the entire IoT device.
  • there are many algorithms for equivalent channel quality which can be some mathematical statistical methods or curve fitting functions, or can be simplified to take the first channel. A weighted average of the quality and the quality of the second channel.
  • the relay application signaling includes: a candidate priority of the target relay terminal in the target relay terminal set and/or a service of the Internet of Things device a priority unit; and the determining unit 410, after receiving the relay application signaling to each of the target relay terminals in the target relay terminal set, if receiving any target in the target relay terminal set And determining, by the relay terminal, the relay application signaling feedback information, whether the relay application signaling feedback information sent by the any target relay terminal is the most received at least one relay application signaling feedback information.
  • the relay application signaling feedback information received first and when the determination result is yes, the any target relay terminal is used as the final relay terminal of the Internet of Things device to forward to the final relay terminal
  • the uplink data sent by the device with the function of the base station; and the first sending unit 402 is further configured to: after sending the relay application signaling to the target relay terminal, if not received within a predetermined time Any one of the target relay terminal sets The relay application signaling feedback information sent by the target relay terminal resends the relay seeking signaling to the plurality of terminals.
  • the relay application signaling is sent to each target relay terminal, if the relay application signaling feedback information sent by any target relay terminal in the target relay terminal set is received, further judgment is performed. Whether the relay application signaling feedback information sent by the target relay terminal is the first received relay application signaling feedback information in the received at least one relay application signaling feedback information, and if yes, the any The target relay terminal is a target relay terminal with the best relay condition in the target relay terminal set, and the forwarding path corresponding to the target relay terminal is also an optimal relay path for the IoT device to forward data, corresponding to the target relay terminal. The rate and efficiency of data forwarding is also the highest.
  • any target relay terminal can be selected as the final relay terminal to realize the signaling processing capability and energy consumption of each terminal in the integrated Internet of Things.
  • the terminal separately selects the optimal relay terminal for the IoT device and the channel quality of the IoT device and the base station, as well as the service requirements of the IoT device.
  • the device selects an optimal relay path; if, if the relay application signaling feedback information sent by any target relay terminal in the target relay terminal set is not received within a predetermined time, then each target relay terminal set is specified.
  • the current relay conditions of the target relay terminals are not sufficient to provide relay services for the IoT devices. Therefore, it is necessary to re-send the relay seeking signaling to multiple terminals to re-apply the relay terminal with better current relay conditions to complete the data. Forwarding.
  • FIG. 5 shows a schematic structural diagram of an Internet of Things device according to an embodiment of the present invention.
  • the Internet of Things device 500 includes: the data transmission system 400 in the Internet of Things according to any one of the above technical solutions.
  • FIG. 6 is a block diagram showing the structure of a data transmission system in the Internet of Things according to another embodiment of the present invention.
  • a data transmission system in the Internet of Things comprising: a determining unit 602, when receiving the relay seeking signaling sent by the plurality of IoT devices, determining, according to the current relay condition of the terminal, whether to respond to any one of the plurality of Internet of Things devices a relay seeking signaling sent by the networked device; the sending unit 604, when the determination result is yes, sending a relay seeking signaling feedback to any of the Internet of Things devices, so that any of the Internet of Things devices will be the terminal a candidate relay terminal as a candidate relay terminal set of any of the Internet of Things devices, and causing any of the Internet of Things devices to determine whether the terminal is used as a target of the target relay terminal of the Internet of Things device Following the terminal, and after determining that the terminal is the target relay terminal in the target relay terminal set, sending the relay application signaling to the terminal; the determining unit 606, in receiving the plurality of Internet of Things When the relay application signaling sent by any of the Internet of Things devices is
  • the current relaying conditions when receiving the relay seeking signaling sent by the multiple IoT devices, the current relaying conditions may be used according to the current relaying conditions (such as whether the terminal supports the IoT device to forward the function to the base station in the current cell)
  • the uplink data sent by the device whether the terminal starts the service of forwarding the uplink data, whether the terminal is idle, whether the current time-frequency resource of the terminal is higher than the time-frequency resource required for forwarding the uplink data, and the maximum number of relay connections supported by the terminal, etc.
  • the relay terminal determines whether to select the candidate relay terminal as a target relay terminal with better relay condition according to the relay seeking signaling feedback, and if the terminal is used as the target relay terminal by the Internet of Things device, Receiving the relay application signaling, and if there are multiple relay application signaling, the terminal automatically according to any of the multiple Determining priority information in relay application signaling of each of the IoT devices in the networked device, determining a feedback priority of each of the IoT devices, so that the plurality of the IoT devices Each of the IoT devices finally accurately determines whether to forward the uplink data through the terminal according to the feedback priority, so that the selection can be implemented.
  • the terminal When relaying the terminal, it can synthesize the signaling processing capability and energy consumption of each terminal in the Internet of Things, the channel quality of each terminal and the IoT device and the base station, and the data service requirements of the IoT device, for the Internet of Things device. Select the optimal relay terminal to select the optimal relay path for the IoT device.
  • the priority information includes: a candidate priority of the terminal in a candidate relay terminal set of each of the any IoT devices, and/or each of the any ones a service priority of the IoT device, and the candidate priority of the terminal in the target relay terminal set is the same as the candidate priority of the terminal in the candidate relay terminal set;
  • the feedback priority of any of the IoT devices is positively related to the candidate priority and/or service priority of each of the IoT devices; and if the terminal is in any of the plurality of IoT devices a candidate priority in a target relay terminal set of the first Internet of Things device, and a candidate priority in a target relay terminal set of the second IoT device of the plurality of IoT devices Levels are the same, and/or the service priority of the first IoT device is the same as the service priority of the second IoT device, and then the feedback of the first IoT device and the second IoT device is determined.
  • Priority phase And the sending unit 604 is further configured to: after determining the feedback priority of each of the any IoT devices, the feedback priority according to each of the any IoT devices is high to low
  • the sequence sequentially sends relay application signaling feedback information to each of the IoT devices.
  • the feedback priority of each of the IoT devices is positively correlated with the candidate priority and/or service priority of each of the IoT devices, that is, each of the described
  • the relay application signaling feedback sent by the terminal, and the service priority of the IoT device may be mapped to a QCI (QoS Class Identifier) table based on its QoS (Quality of Service) requirement, and the value ranges from 1 to 9.
  • QCI QoS Class Identifier
  • the determining unit 602 is further configured to: according to the feedback priority, the feedback priority is high to low before sequentially sending the relay application signaling feedback information to each of the IoT devices. And determining, in sequence, whether the currently available time-frequency resource of the terminal is smaller than a required time-frequency resource of each of the plurality of Internet of Things devices; The determining unit 602 is further configured to: if the current available time-frequency resource is smaller than the required time-frequency resource of the first designated Internet of Things device, not sending the relay application signaling to the first designated Internet of Things device Feedback information, and determining, according to the order of the feedback priority from high to low, whether the currently available time-frequency resource is greater than or equal to the required time-frequency resource of the second designated IoT device and/or the terminal is currently Whether the total number of the relay application signaling feedback information sent is greater than the maximum number of relay connections; the sending unit 604 is further configured to: when the currently available time-frequency resource is greater than or equal to the second designated Internet of Things
  • the current available time-frequency resources of the terminal may be sequentially determined according to the order of the feedback priority from high to low. And a required time-frequency resource that is less than the required time-frequency resource of each of the any one of the Internet of Things devices, if the currently available time-frequency resource is smaller than the required time-frequency resource of the first designated IoT device, The current available time-frequency resource of the terminal is insufficient to provide the relay service for the first designated IoT device, and the current available time-frequency resource is further determined to be greater than or equal to the feedback priority according to the order of the feedback priority from high to low.
  • the required time-frequency resource of the second second designated IoT device and/or the total number of relay application signaling feedback information sent by the terminal is less than or equal to the maximum number of relay connections, if the currently available time-frequency resource is greater than or The total number of required time-frequency resources equal to the second designated IoT device with lower feedback priority and/or the relay application signaling feedback information sent by the terminal. If the number of the maximum number of trunk connections is equal to or greater than the maximum number of trunk connections, the current relay condition of the terminal is good, the trunk resources are sufficient, the relay capability has not reached the upper limit, and the relay capability is still sufficient, which is sufficient for the second designated object with lower feedback priority. The networked device provides the relay service. Otherwise, the current relay condition of the terminal is relatively poor. The relay capability is insufficient to provide the relay service for the second designated IoT device with lower feedback priority, and the second designated Internet of things is not provided. The device sends the relay application signaling feedback information.
  • FIG. 7 shows a schematic structural diagram of a terminal according to an embodiment of the present invention.
  • a terminal 700 includes: a data transmission system 600 in the Internet of Things according to any one of the above technical solutions.
  • the terminal selects the optimal relay terminal for the IoT device and the optimal relay path for the IoT device, respectively, with the channel quality of the IoT device and the base station and the data service requirements of the IoT device.
  • FIG. 8 shows a schematic structural diagram of an Internet of Things system according to an embodiment of the present invention.
  • an Internet of Things system 800 includes: a device 802 having a base station function; the Internet of Things device 500 as described in the above technical solution; and Terminal 700 as described.
  • the Internet of Things system 700 composed of the device 800 having the function of the base station, the Internet of Things device 500, and the terminal, it is possible to realize the signaling processing of each terminal in the Internet of Things when the relay terminal is selected.
  • the capability and energy consumption, the channel quality of each terminal and the Internet of Things and the device 802 with base station function, and the data service requirements of the Internet of Things device 500 select the optimal relay terminal for the Internet of Things device 500, and then the Internet of Things device. Select the optimal relay path.
  • the Internet of Things system 800 includes an Internet of Things system based on an LTE network.
  • the Internet of Things system 800 includes, but is not limited to, an Internet of Things system based on an LTE network, and may also be an Internet of Things system based on a 3G network, or although the advancement of technology may be an Internet of Things system based on a network such as 5G.
  • FIG. 9 is a schematic diagram showing the principle of a data transmission system in the Internet of Things according to an embodiment of the present invention.
  • the candidate relay sets of the Internet of Things devices Device 1 and Device 2 are both ⁇ UE Relay 1, UE Relay 2, UE Relay 3 ⁇ , and then, each candidate relay terminal in the IoT device is integrated. Signaling processing capacity and energy consumption, each candidate relay terminal and IoT
  • the first channel quality of Device 1 and Device 2 and the second channel quality of the base station and the data service requirements of the Internet of Things devices Device 1 and Device 2 can select the optimal relay terminal for the Internet of Things devices Device 1 and Device 2.
  • the optimal relay path is selected for the Internet of Things devices Device 1 and Device 2, that is, the Internet of Things device 1 should select UE Relay 1 as the final relay terminal to communicate with the base station, and the Internet of Things device 2 should select UE Relay 2 as the relay device.
  • the final relay terminal is in communication with the base station.
  • FIG. 10 is a block diagram showing the structure of an Internet of Things device according to another embodiment of the present invention.
  • the IoT device 10 may include at least one processor 101, such as a CPU, at least one communication bus 102 and a memory 103; a communication bus 62 for implementing connection communication between these components; the memory 103 may It is a high speed RAM memory or a non-volatile memory such as at least one disk memory.
  • a set of program codes is stored in the memory 103, and the processor 101 is configured to call the program code stored in the memory 103 to perform the following operations:
  • the target relay terminal in the target relay terminal group sends the relay application signaling to apply for forwarding the uplink data sent by the target relay terminal to the device having the base station function in the serving cell, where the A plurality of terminals includes the at least one terminal.
  • the relay finding signaling feedback includes: a first channel quality of the IoT device to each of the candidate relay terminals and/or each of the candidate relay terminals to a second channel quality of the device having a base station function;
  • the processor 101 determines, according to the received relay seeking signaling feedback of each candidate relay terminal in the candidate relay terminal set, the target relay terminal set of the Internet of Things device. Specifically, including:
  • the relay application signaling includes: a candidate priority of the target relay terminal in the target relay terminal set and/or a service of the Internet of Things device Priority;
  • the processor 101 sends the relay application signaling to the target relay terminal in the target relay terminal set, if any one of the target relay terminal sets is received, And determining, by the target relay terminal, the relay application signaling feedback information, whether the relay application signaling feedback information sent by the target relay terminal is the received at least one relay application signaling feedback information.
  • the first received relay application signaling feedback information and when the determination result is yes, the any target relay terminal is used as the final relay terminal of the Internet of Things device to be forwarded by the final relay terminal Uplink data sent to the device having the base station function;
  • the processor 101 After transmitting the relay application signaling to the target relay terminal, the processor 101 does not receive a relay application sent by any target relay terminal in the target relay terminal set within a predetermined time.
  • the signaling feedback information is used to retransmit the relay seeking signaling to the multiple terminals.
  • FIG. 11 is a block diagram showing the structure of a terminal according to another embodiment of the present invention.
  • the terminal 11 may include at least one processor 111, such as a CPU, at least one communication bus 112 and a memory 113; a communication bus 62 for implementing connection communication between these components; the memory 113 may be a high speed
  • the RAM memory may also be a non-volatile memory such as at least one disk memory.
  • a set of program codes is stored in the memory 113, and the processor 111 is configured to call the program code stored in the memory 113 to perform the following operations:
  • the relay application signaling is sent to the terminal; when receiving the relay application signaling sent by any one of the Internet of Things devices in the Internet of Things, Determining, according to priority information in the relay application signaling of each of the any one of the Internet of Things devices, determining a feedback priority of each of the IoT devices, so as to Said Each of the IoT devices in the Internet of Things device determines whether to forward, by the terminal, uplink data sent to a device having a base station function in a serving cell, wherein the feedback priority is The priority of any IoT device to send relay application signaling feedback.
  • the priority information includes: a candidate priority of the terminal in a candidate relay terminal set of each of the any IoT devices, and/or each of the any ones a service priority of the IoT device, and the candidate priority of the terminal in the target relay terminal set is the same as the candidate priority of the terminal in the candidate relay terminal set;
  • the processor 111 determines each of the objects according to priority information in relay application signaling of each of the any one of the Internet of Things devices.
  • the feedback priority of the networked device includes: the feedback priority of each of the IoT devices is positively correlated with the candidate priority and/or the service priority of each of the IoT devices; a candidate priority of the terminal in a target relay terminal set of the first IoT device of the any one of the Internet of Things devices, and a second object of the terminal in the plurality of the Internet of Things devices Determining the first priority when the target relay terminal set of the networked device is in the same candidate priority, and/or the service priority of the first IoT device is the same as the service priority of the second IoT device
  • the IoT device has the same feedback priority as the second IoT device; and after determining the feedback priority of each of the IoT devices, according to each of the The feedback priority of an Internet of Things device is sent from the highest to the lowest, and the relay application signaling feedback information is sent to each of the
  • the processor 111 performs the following operations before sending the relay application signaling feedback information to each of the IoT devices in sequence:
  • the relay application signaling feedback information is not sent to the first designated IoT device, and Determining, in descending order of the feedback priority, whether the currently available time-frequency resource is greater than or equal to a required time-frequency resource of the second designated IoT device and/or the middle terminal that the terminal has currently sent Whether the total number of application signaling feedback information is greater than the maximum number of relay connections; the current available time-frequency resource is greater than or equal to the required time-frequency resource of the second designated Internet of Things device and/or the relay application Sending the relay application signaling feedback information to the second designated IoT device when the total number of signaling feedback information is less than the maximum number of relay connections, otherwise, not to the second designated object
  • the network device sends the relay application signaling feedback information

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Abstract

本发明提出了一种物联网中的数据传输方法、一种数据传输系统、一种物联网设备、一种终端和一种物联网系统，方法包括：向物联网设备所在的服务小区中的多个终端发送中继寻找信令；接收来自至少一个终端发送的中继寻找信令反馈，并将至少一个终端作为物联网设备的候选中继终端集中的候选中继终端；根据接收到的候选中继终端集中每个候选中继终端的中继寻找信令反馈，确定物联网设备的目标中继终端集；向目标中继终端集中的目标中继终端发送中继申请信令。通过本发明的技术方案，能够综合物联网中的每个终端的信令处理能力和能耗情况、每个终端与物联网设备和基站的信道质量以及物联网设备的数据业务需求，为物联网设备选择最优中继终端。

Description

物联网中的数据传输方法、系统、物联网设备、终端
[根据细则26改正31.08.2015]　
本申请要求于2015年03月13日提交中国专利局，申请号为CN201510112131.3、发明名称为"物联网中的数据传输方法、系统、物联网设备,终端"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
[根据细则26改正31.08.2015]　
本发明涉及物联网技术领域，具体而言，涉及一种物联网中的数据传输方法、一种物联网中的数据传输系统、一种物联网设备、一种终端和一种物联网系统。
背景技术
[根据细则26改正31.08.2015]　
物联网（MTC)应用是业界公认的5G网络的主要需求和5G网络的主要驱动力，对于大多数的物联网应用而言，海量、低成本、小数据包，低时延、低功耗是其重要特征，例如：在智能抄表（水表、电表、气表）、智能家居等物联网场景中，物联网设备的数量远远大于智能终端（例如手机、pad等）的数据，因此，用户对物联网的成本和功耗非常敏感。为了降低海量物联网设备的成本和功耗，未来网络可能采用中继终端（例如具有Relay功能的手机、pad)作为辅助，由中继终端对物联网设备的数据进行汇聚和中转，以使物联网设备能够向基站上传数据。
[根据细则26改正31.08.2015]　
而目前的中继终端的选择算法主要基于eNB(基站）的集中式控制方案，即eNB根据可用中继终端与基站和物联网设备的信道盾量好坏，综合来选取某个最佳的中继终端作为辅助。这样，基于eNB的集中式控制方案虽然可以有效地满足物联网设备低功耗或低成本需求，但当物联网中含有海量物联网设备时，这类方案的管理复杂度很高，此外，现有技术方案并没有考虑中继能力受限，但实际上，中继终端汇聚转发流量会涉及到中继终端与运营商网络的流量签约，中继终端的信令处理能力和能耗情况，因此，中继终端不能假定为可以无限制地充当物联网设备的中继实体。例如，在一些应用场景中，中继终端仅能支持有15个物联网设备同时接入。
因此，在选择中继终端时，如何能够综合物联网中的每个终端的信令处理能力和能耗情况、每个终端分别与物联网设备和基站的信道质量以及物联网设备的数据业务需求，为物联网设备选择最优中继终端，进而为物联网设备选择最优中继路径，成为亟待解决的问题。
发明内容
本发明正是基于上述问题，提出了一种新的技术方案，可以实现在选择中继终端时，能够综合物联网中的每个终端的信令处理能力和能耗情况、每个终端分别与物联网设备和基站的信道质量以及物联网设备的数据业务需求，为物联网设备选择最优中继终端，进而为物联网设备选择最优中继路径。
有鉴于此，本发明的一方面提出了一种物联网中的数据传输方法，用于所述物联网中的物联网设备，包括：向所述物联网设备所在的服务小区中的多个终端发送中继寻找信令；接收来自至少一个终端发送的中继寻找信令反馈，并将所述至少一个终端作为所述物联网设备的候选中继终端集中的候选中继终端；根据接收到的所述候选中继终端集中每个候选中继终端的所述中继寻找信令反馈，确定所述物联网设备的目标中继终端集；向所述目标中继终端集中的目标中继终端发送中继申请信令，以申请通过所述目标中继终端转发向所述服务小区中的具有基站功能的设备发送的上行数据，其中，所述多个终端包括所述至少一个终端。
在该技术方案中，通过向物联网设备所在的服务小区中的多个终端发送中继寻找信令，可以使多个终端根据自身的当前中继条件(如终端是否支持为物联网设备转发向所在当前小区中的具有基站功能的设备发送的上行数据、终端是否开启转发上行数据的服务、终端是否空闲、终端的当前时频资源是否高于转发上行数据所需的时频资源、终端支持的最大中继连接数目等)决定是否响应物联网设备的中继寻找信令，如果当前中继条件比较理想，则响应，并发送中继寻找信令反馈，以使物联网设备将发送中继寻找信令反馈的终端作为候选中继终端，进而根据中继寻找信令反馈从候选中继终端集中进一步筛选出中继条件更好的终端作为目标中继终端， 并向目标中继终端集中的每个或部分目标中继终端发送中继申请信令，以申请通过中继能力等中继条件较好的目标中继终端转发向服务小区中的具有基站功能的设备发送的上行数据，从而实现综合终端的信令处理能力和能耗情况，选择出较优的中继路径实现数据的转发。其中，具有基站功能的设备包括基站、通过通信设备(如智能手机等)实现的微小区基站等。
在上述技术方案中，优选地，所述中继寻找信令反馈包括：所述物联网设备至每个所述候选中继终端的第一信道质量和/或每个所述候选中继终端至所述具有基站功能的设备的第二信道质量；以及根据接收到的所述候选中继终端集中每个候选中继终端的所述中继寻找信令反馈，确定所述物联网设备的目标中继终端集，具体包括：根据与所述每个所述候选中继终端相对应的所述第一信道质量和/或所述第二信道质量计算出与所述每个所述候选中继终端相对应的所述物联网设备至所述具有基站功能的设备的等效信道质量；根据与所述每个所述候选中继终端相对应的所述等效信道质量确定每个所述候选中继终端在所述候选中继终端集中所处的候选优先级；判断所述候选中继终端集中的任一候选中继终端的候选优先级是否高于预设候选优先级，在判断结果为是时，则将所述任一候选中继终端作为所述目标中继终端集中的目标中继终端，且所述目标中继终端在所述目标中继终端集中所处的候选优先级与所述目标中继终端在所述候选中继终端集中所处的候选优先级相同；否则，确定所述任一候选中继终端不是所述目标中继终端集中的目标中继终端。
在该技术方案中，通过与每个候选中继终端相对应的第一信道质量和/或第二信道质量可以准确地计算出与每个所述候选中继终端相对应的物联网设备至具有基站功能的设备的等效信道质量，然后可以确定每个候选中继终端在候选中继终端集中所处的候选优先级，当然，等效信道质量越高，候选优先级也就越高，且若任一候选中继终端的候选优先级高于预设候选优先级，则说明物联网设备至该任一候选中继终端和该任一候选中继终端至具有基站功能的设备的信道质量均较高，则可以将该任一候选中继终端进一步作为当前中继条件较好的目标中继终端，以实现综合物联网中的每个终端的信令处理能力和能耗情况、每个终端分别与物联网设备和基站的 信道质量，为物联网设备选择较优的中继终端，进而为物联网设备选择较优的中继路径，并最终提高数据转发的速率和效率，提高整个物联网设备的系统数据处理速率，当然，等效信道质量的算法有多种，可以是某些数学统计方法或者曲线拟合函数，也可以简化为取第一信道质量和第二信道质量的加权平均值。
在上述技术方案中，优选地，所述中继申请信令包括：所述任一目标中继终端在所述目标中继终端集中所处的候选优先级和/或所述物联网设备的业务优先级；以及在向所述目标中继终端集中的每个所述目标中继终端发送所述中继申请信令后，若接收到所述目标中继终端集中的任一目标中继终端发送的中继申请信令反馈信息，则判断所述任一目标中继终端发送的所述中继申请信令反馈信息是否为接收到的至少一个中继申请信令反馈信息中最先接收的中继申请信令反馈信息，并在判断结果为是时，将所述任一目标中继终端作为所述物联网设备的最终中继终端，以通过所述最终中继终端转发向所述具有基站功能的设备发送的上行数据；以及在向所述目标中继终端发送所述中继申请信令后，若在预定时间内未接收到所述目标中继终端集中的任一目标中继终端发送的中继申请信令反馈信息，则重新向所述多个终端发送中继寻找信令。
在该技术方案中，在向每个目标中继终端发送中继申请信令后，若接收到目标中继终端集中的任一目标中继终端发送的中继申请信令反馈信息，则进一步判断该任一目标中继终端发送的中继申请信令反馈信息是否为接收到的至少一个中继申请信令反馈信息中最先接收的中继申请信令反馈信息，若是，则说明该任一目标中继终端是目标中继终端集中当前中继条件最优的目标中继终端，该任一目标中继终端对应的转发路径也是物联网设备进行数据转发的最优中继路径，对应的其数据转发的速率和效率也是最高的，因此，可以选择将该任一目标中继终端作为最终中继终端，以实现综合物联网中的每个终端的信令处理能力和能耗情况、每个终端分别与物联网设备和基站的信道质量以及物联网设备的业务需求，为物联网设备选择最优的中继终端，进而为物联网设备选择最优的中继路径；反之，若在预定时间内未接收到目标中继终端集中的任一目标中继终端发送的中 继申请信令反馈信息，则说明目标中继终端集的每个目标中继终端的当前中继条件都不足以为物联网设备提供中继服务，则需要重新向多个终端发送中继寻找信令，以重新申请当前中继条件较好的中继终端完成数据的转发。
本发明的另一方面提出了一种物联网中的数据传输系统，用于所述物联网中的物联网设备，包括：第一发送单元，向所述物联网设备所在的服务小区中的多个终端发送中继寻找信令；接收单元，接收来自至少一个终端发送的中继寻找信令反馈，并将所述至少一个终端作为所述物联网设备的候选中继终端集中的候选中继终端；确定单元，根据接收到的所述候选中继终端集中每个候选中继终端的所述中继寻找信令反馈，确定所述物联网设备的目标中继终端集；第二发送单元，向所述目标中继终端集中的目标中继终端发送中继申请信令，以申请通过所述目标中继终端转发向所述服务小区中的具有基站功能的设备发送的上行数据，其中，所述多个终端包括所述至少一个终端。
在该技术方案中，通过向物联网设备所在的服务小区中的多个终端发送中继寻找信令，可以使多个终端根据自身的当前中继条件(如终端是否支持为物联网设备转发向所在当前小区中的具有基站功能的设备发送的上行数据、终端是否开启转发上行数据的服务、终端是否空闲、终端的当前时频资源是否高于转发上行数据所需的时频资源、终端支持的最大中继连接数目等)决定是否响应物联网设备的中继寻找信令，如果当前中继条件比较理想，则响应，并发送中继寻找信令反馈，以使物联网设备将发送中继寻找信令反馈的终端作为候选中继终端，进而根据中继寻找信令反馈从候选中继终端集中进一步筛选出中继条件更好的终端作为目标中继终端，并向目标中继终端集中的每个或部分目标中继终端发送中继申请信令，以申请通过中继能力等中继条件较好的目标中继终端转发向服务小区中的具有基站功能的设备发送的上行数据，从而实现综合终端的信令处理能力和能耗情况，选择出较优的中继路径实现数据的转发。其中，具有基站功能的设备包括基站、通过通信设备(如智能手机等)实现的微小区基站等。
在上述技术方案中，优选地，所述中继寻找信令反馈包括：所述物联 网设备至每个所述候选中继终端的第一信道质量和/或每个所述候选中继终端至所述具有基站功能的设备的第二信道质量；以及所述确定单元具体用于：根据与所述每个所述候选中继终端相对应的所述第一信道质量和/或所述第二信道质量计算出与所述每个所述候选中继终端相对应的所述物联网设备至所述具有基站功能的设备的等效信道质量；根据与所述每个所述候选中继终端相对应的所述等效信道质量确定每个所述候选中继终端在所述候选中继终端集中所处的候选优先级；判断所述候选中继终端集中的任一候选中继终端的候选优先级是否高于预设候选优先级，在判断结果为是时，则将所述任一候选中继终端作为所述目标中继终端集中的目标中继终端，且所述目标中继终端在所述目标中继终端集中所处的候选优先级与所述目标中继终端在所述候选中继终端集中所处的候选优先级相同；否则，确定所述任一候选中继终端不是所述目标中继终端集中的目标中继终端。
在该技术方案中，通过与每个候选中继终端相对应的第一信道质量和/或第二信道质量可以准确地计算出与每个所述候选中继终端相对应的物联网设备至具有基站功能的设备的等效信道质量，然后可以确定每个候选中继终端在候选中继终端集中所处的候选优先级，当然，等效信道质量越高，候选优先级也就越高，且若任一候选中继终端的候选优先级高于预设候选优先级，则说明物联网设备至该任一候选中继终端和该任一候选中继终端至具有基站功能的设备的信道质量均较高，则可以将该任一候选中继终端进一步作为当前中继条件较好的目标中继终端，以实现综合物联网中的每个终端的信令处理能力和能耗情况、每个终端分别与物联网设备和基站的信道质量，为物联网设备选择较优的中继终端，进而为物联网设备选择较优的中继路径，并最终提高数据转发的速率和效率，提高整个物联网的系统数据处理速率，当然，等效信道质量的算法有多种，可以是某些数学统计方法或者曲线拟合函数，也可以简化为取第一信道质量和第二信道质量的加权平均值。
在上述技术方案中，优选地，所述中继申请信令包括：所述任一目标中继终端在所述目标中继终端集中所处的候选优先级和/或所述物联网设备的业务优先级；以及判断单元，在向所述目标中继终端集中的每个所述 目标中继终端发送所述中继申请信令后，若接收到所述目标中继终端集中的任一目标中继终端发送的中继申请信令反馈信息，则判断所述任一目标中继终端发送的所述中继申请信令反馈信息是否为接收到的至少一个中继申请信令反馈信息中最先接收的中继申请信令反馈信息，并在判断结果为是时，将所述任一目标中继终端作为所述物联网设备的最终中继终端，以通过所述最终中继终端转发向所述具有基站功能的设备发送的上行数据；以及所述第一发送单元还用于：在向所述目标中继终端发送所述中继申请信令后，若在预定时间内未接收到所述目标中继终端集中的任一目标中继终端发送的中继申请信令反馈信息，则重新向所述多个终端发送中继寻找信令。
在该技术方案中，在向每个目标中继终端发送中继申请信令后，若接收到目标中继终端集中的任一目标中继终端发送的中继申请信令反馈信息，则进一步判断该任一目标中继终端发送的中继申请信令反馈信息是否为接收到的至少一个中继申请信令反馈信息中最先接收的中继申请信令反馈信息，若是，则说明该任一目标中继终端是目标中继终端集中当前中继条件最优的目标中继终端，该任一目标中继终端对应的转发路径也是物联网设备进行数据转发的最优中继路径，对应的其数据转发的速率和效率也是最高的，因此，可以选择将该任一目标中继终端作为最终中继终端，以实现综合物联网中的每个终端的信令处理能力和能耗情况、每个终端分别与物联网设备和基站的信道质量以及物联网设备的业务需求，为物联网设备选择最优的中继终端，进而为物联网设备选择最优的中继路径；反之，若在预定时间内未接收到目标中继终端集中的任一目标中继终端发送的中继申请信令反馈信息，则说明目标中继终端集的每个目标中继终端的当前中继条件都不足以为物联网设备提供中继服务，则需要重新向多个终端发送中继寻找信令，以重新申请当前中继条件较好的中继终端完成数据的转发。
本发明的又一方面提出了一种物联网设备，包括处理器和存储器，其中，所述存储器中存储一组程序代码，且所述处理器用于调用所述存储器中存储的程序代码，用于执行以下操作：
向物联网设备所在的服务小区中的多个终端发送中继寻找信令；接收来自至少一个终端发送的中继寻找信令反馈，并将所述至少一个终端作为所述物联网设备的候选中继终端集中的候选中继终端；根据接收到的所述候选中继终端集中每个候选中继终端的所述中继寻找信令反馈，确定所述物联网设备的目标中继终端集；向所述目标中继终端集中的目标中继终端发送中继申请信令，以申请通过所述目标中继终端转发向所述服务小区中的具有基站功能的设备发送的上行数据，其中，所述多个终端包括所述至少一个终端。
在上述技术方案中，优选地，所述中继寻找信令反馈包括：所述物联网设备至每个所述候选中继终端的第一信道质量和/或每个所述候选中继终端至所述具有基站功能的设备的第二信道质量；以及
在该技术方案中，所述处理器根据接收到的所述候选中继终端集中每个候选中继终端的所述中继寻找信令反馈，确定所述物联网设备的目标中继终端集，具体包括：
根据与所述每个所述候选中继终端相对应的所述第一信道质量和/或所述第二信道质量计算出与所述每个所述候选中继终端相对应的所述物联网设备至所述具有基站功能的设备的等效信道质量；根据与所述每个所述候选中继终端相对应的所述等效信道质量确定每个所述候选中继终端在所述候选中继终端集中所处的候选优先级；判断所述候选中继终端集中的任一候选中继终端的候选优先级是否高于预设候选优先级，在判断结果为是时，则将所述任一候选中继终端作为所述目标中继终端集中的目标中继终端，且所述目标中继终端在所述目标中继终端集中所处的候选优先级与所述目标中继终端在所述候选中继终端集中所处的候选优先级相同；否则，确定所述任一候选中继终端不是所述目标中继终端集中的目标中继终端。
在上述技术方案中，优选地，所述中继申请信令包括：所述任一目标中继终端在所述目标中继终端集中所处的候选优先级和/或所述物联网设备的业务优先级；以及
在该技术方案中，所述处理器在向所述目标中继终端集中的所述目标中继终端发送所述中继申请信令后，若接收到所述目标中继终端集中的任 一目标中继终端发送的中继申请信令反馈信息，则判断所述任一目标中继终端发送的所述中继申请信令反馈信息是否为接收到的至少一个中继申请信令反馈信息中最先接收的中继申请信令反馈信息，并在判断结果为是时，将所述任一目标中继终端作为所述物联网设备的最终中继终端，以通过所述最终中继终端转发向所述具有基站功能的设备发送的上行数据；以及
所述处理器在向所述目标中继终端发送所述中继申请信令后，若在预定时间内未接收到所述目标中继终端集中的任一目标中继终端发送的中继申请信令反馈信息，则重新向所述多个终端发送中继寻找信令。
在该技术方案中，通过在物联网设备上设置物联网中的数据传输系统，可以实现在选择中继终端时，能够综合物联网设备中的每个终端的信令处理能力和能耗情况、每个终端分别与物联网设备和基站的信道质量以及物联网设备的数据业务需求，为物联网设备选择最优中继终端，进而为物联网设备选择最优中继路径。
本发明的再一方面提出了一种物联网中的数据传输方法，用于所述物联网中的终端，所述终端与上述技术方案中的物联网设备相连接，以及所述数据传输方法包括：在接收到多个物联网设备发送的中继寻找信令时，根据所述终端的当前中继条件，判断是否响应所述多个物联网设备中的任一物联网设备发送的中继寻找信令；在判断结果为是时，向所述任一物联网设备发送中继寻找信令反馈，以使所述任一物联网设备将所述终端作为所述任一物联网设备的候选中继终端集中的候选中继终端，并使所述任一物联网设备确定是否将所述终端作为所述物联网设备的目标中继终端集中的目标中继终端，并在确定将所述终端作为所述目标中继终端集中的目标中继终端后，向所述终端发送中继申请信令；在接收到所述物联网中多个所述任一物联网设备发送的中继申请信令时，根据多个所述任一物联网设备中每个所述任一物联网设备的中继申请信令中的优先级信息，确定每个所述任一物联网设备的反馈优先级，以使多个所述任一物联网设备中的每个所述任一物联网设备确定是否通过所述终端转发向所在服务小区中的具有基站功能的设备发送的上行数据，其中，所述反馈优先级为向每个所述任一物联网设备发送中继申请信令反馈的优先级。
在该技术方案中，在接收到多个物联网设备发送的中继寻找信令时，可以根据自身的当前中继条件(如终端是否支持为物联网设备转发向所在当前小区中的具有基站功能的设备发送的上行数据、终端是否开启转发上行数据的服务、终端是否空闲、终端的当前时频资源是否高于转发上行数据所需的时频资源、终端支持的最大中继连接数目等)决定是否响应多个物联网设备的中继寻找信令，如果当前中继条件比较理想，则响应，并向任一物联网设备发送中继寻找信令反馈，以使物联网设备将该终端作为候选中继终端，进而根据中继寻找信令反馈确定是否将该候选中继终端进一步筛选出来作为中继条件更好的目标中继终端，如果该终端被物联网设备作为目标中继终端，就会接收到中继申请信令，且如果中继申请信令为多个时，终端就会自动地根据多个任一物联网设备中每个所述任一物联网设备的中继申请信令中的优先级信息，确定每个任一物联网设备的反馈优先级，以使多个所述任一物联网设备中的每个所述任一物联网设备根据反馈优先级最终准确确定是否通过该终端转发上行数据，从而可以实现在选择中继终端时，能够综合物联网设备中的每个终端的信令处理能力和能耗情况、每个终端分别与物联网设备和基站的信道质量以及物联网设备的数据业务需求，为物联网设备选择最优中继终端，进而为物联网设备选择最优中继路径。
在上述技术方案中，优选地，所述优先级信息包括：所述终端在每个所述任一物联网设备的候选中继终端集中所处的候选优先级和/或每个所述任一物联网设备的业务优先级，且所述终端在所述目标中继终端集中所处的候选优先级与所述终端在所述候选中继终端集中所处的候选优先级相同；以及所述根据多个所述任一物联网设备中每个所述任一物联网设备的中继申请信令中的优先级信息确定每个所述任一物联网设备的反馈优先级，具体包括：每个所述任一物联网设备的反馈优先级与每个所述任一物联网设备的候选优先级和/或业务优先级成正相关；且若所述终端在多个所述任一物联网设备中的第一物联网设备的目标中继终端集中所处的候选优先级，与所述终端在多个所述任一物联网设备中的第二物联网设备的目标中继终端集中所处的候选优先级相同，和/或所述第一物联网设备的业务优 先级与所述第二物联网设备的业务优先级相同，则确定所述第一物联网设备与所述第二物联网设备的反馈优先级相同；以及在确定每个所述任一物联网设备的所述反馈优先级之后，按照每个所述任一物联网设备的所述反馈优先级由高到低的顺序，依次向每个所述任一物联网设备发送中继申请信令反馈信息。
在该技术方案中，每个所述任一物联网设备的反馈优先级与每个所述任一物联网设备的候选优先级和/或业务优先级成正相关，也即每个所述任一物联网设备的候选优先级越高和/或业务优先级越高，每个所述任一物联网设备的反馈优先级也就越高，每个所述任一物联网设备就会越早收到终端发送的中继申请信令反馈，且该任一物联网设备的业务优先级可以基于其QoS(Quality of Service)需求映射到QCI(QoS Class Identifier)表格，其取值范围为1到9的整数。
在上述技术方案中，优选地，在依次向每个所述任一物联网设备发送中继申请信令反馈信息之前，还包括：按照所述反馈优先级由高到低的顺序，依次判断所述终端的当前可用时频资源是否小于多个所述任一物联网设备中的每个所述任一物联网设备的所需时频资源；若判断所述当前可用时频资源小于第一指定物联网设备的所需时频资源，则不向所述第一指定物联网设备发送所述中继申请信令反馈信息，并按照所述反馈优先级从高到低的顺序，依次判断所述当前可用时频资源是否大于或等于第二指定物联网设备的所需时频资源和/或所述终端当前已发送的所述中继申请信令反馈信息的总数目是否大于最大中继连接数目；在所述当前可用时频资源大于或等于所述第二指定物联网设备的所需时频资源和/或所述中继申请信令反馈信息的总数目小于所述最大中继连接数目时，向所述第二指定物联网设备发送所述中继申请信令反馈信息，否则，不向所述第二指定物联网设备发送所述中继申请信令反馈信息，其中，所述第二指定物联网设备的反馈优先级小于或等于所述第一物联网设备的反馈优先级，其中，所述第一指定物联网设备和所述第二指定物联网设备均为多个所述任一物联网设备中的物联网设备。
在该技术方案中，在依次向每个所述任一物联网设备发送中继申请信 令反馈信息之前，可以按照反馈优先级由高到低的顺序，依次判断终端的当前可用时频资源是否小于多个所述任一物联网设备中的每个所述任一物联网设备的所需时频资源，若当前可用时频资源小于第一指定物联网设备的所需时频资源，则说明该终端当前的可用时频资源不足以为该第一指定物联网设备提供中继服务，则可以进一步按照反馈优先级从高到低的顺序，依次判断当前可用时频资源是否大于或等于反馈优先级较低的第二指定物联网设备的所需时频资源和/或终端已发送的中继申请信令反馈信息的总数目是否小于或等于最大中继连接数目，若当前可用时频资源大于或等于反馈优先级较低的第二指定物联网设备的所需时频资源和/或终端已发送的中继申请信令反馈信息的总数目小于或等于最大中继连接数目，则说明终端的当前中继条件良好，中继资源充足，中继能力还未达到上限，中继能力仍然有余，足以为反馈优先级较低的第二指定物联网设备提供中继服务，否则，则说明终端的当前中继条件比较差，中继能力不足以为反馈优先级较低的第二指定物联网设备提供中继服务，则不向第二指定物联网设备发送所述中继申请信令反馈信息。
在上述技术方案中，优选地，所述当前中继条件包括：所述终端是否支持为所述任一物联网设备转发向所在当前小区中的具有基站功能的设备发送的上行数据、所述终端是否开启转发所述上行数据的服务、所述终端是否空闲、所述终端的电量是否高于预设电量、所述终端的当前时频资源是否高于转发所述上行数据所需的时频资源、所述终端支持的最大中继连接数目、所述任一物联网设备至所述终端的第一信道质量、所述终端至所述具有基站功能的设备的第二信道质量、所述终端的移动性中的至少一个条件。
在该技术方案中，通过上述当前中继条件，可以使终端准确判断是否响应物联网设备的中继寻找信令，进而为物联网设备综合终端的中继能力等当前中继条件筛选出中继条件和中继路径较好的终端作为中继终端提供了必要的前提条件。
本发明的再一方面提出了一种物联网中的数据传输系统，用于所述物联网中的终端，所述终端与上述技术方案中的物联网设备相连接，以及所 述数据传输系统包括：判断单元，在接收到多个物联网设备发送的中继寻找信令时，根据所述终端的当前中继条件，判断是否响应所述多个物联网设备中的任一物联网设备发送的中继寻找信令；发送单元，在判断结果为是时，向所述任一物联网设备发送中继寻找信令反馈，以使所述任一物联网设备将所述终端作为所述任一物联网设备的候选中继终端集中的候选中继终端，并使所述任一物联网设备确定是否将所述终端作为所述物联网设备的目标中继终端集中的目标中继终端，并在确定将所述终端作为所述目标中继终端集中的目标中继终端后，向所述终端发送中继申请信令；确定单元，在接收到所述物联网中多个所述任一物联网设备发送的中继申请信令时，根据多个所述任一物联网设备中每个所述任一物联网设备的中继申请信令中的优先级信息，确定每个所述任一物联网设备的反馈优先级，以使多个所述任一物联网设备中的每个所述任一物联网设备确定是否通过所述终端转发向所在服务小区中的具有基站功能的设备发送的上行数据，其中，所述反馈优先级为向每个所述任一物联网设备发送中继申请信令反馈的优先级。
在该技术方案中，在接收到多个物联网设备发送的中继寻找信令时，可以根据自身的当前中继条件(如终端是否支持为物联网设备转发向所在当前小区中的具有基站功能的设备发送的上行数据、终端是否开启转发上行数据的服务、终端是否空闲、终端的当前时频资源是否高于转发上行数据所需的时频资源、终端支持的最大中继连接数目等)决定是否响应多个物联网设备的中继寻找信令，如果当前中继条件比较理想，则响应，并向任一物联网设备发送中继寻找信令反馈，以使物联网设备将该终端作为候选中继终端，进而根据中继寻找信令反馈确定是否将该候选中继终端进一步筛选出来作为中继条件更好的目标中继终端，如果该终端被物联网设备作为目标中继终端，就会接收到中继申请信令，且如果中继申请信令为多个时，终端就会自动地根据多个任一物联网设备中每个所述任一物联网设备的中继申请信令中的优先级信息，确定每个任一物联网设备的反馈优先级，以使多个所述任一物联网设备中的每个所述任一物联网设备根据反馈优先级最终准确确定是否通过该终端转发上行数据，从而可以实现在选择 中继终端时，能够综合物联网设备中的每个终端的信令处理能力和能耗情况、每个终端分别与物联网设备和基站的信道质量以及物联网设备的数据业务需求，为物联网设备选择最优中继终端，进而为物联网设备选择最优中继路径。
在上述技术方案中，优选地，所述优先级信息包括：所述终端在每个所述任一物联网设备的候选中继终端集中所处的候选优先级和/或每个所述任一物联网设备的业务优先级，且所述终端在所述目标中继终端集中所处的候选优先级与所述终端在所述候选中继终端集中所处的候选优先级相同；以及每个所述任一物联网设备的反馈优先级与每个所述任一物联网设备的候选优先级和/或业务优先级成正相关；且若所述终端在多个所述任一物联网设备中的第一物联网设备的目标中继终端集中所处的候选优先级，与所述终端在多个所述任一物联网设备中的第二物联网设备的目标中继终端集中所处的候选优先级相同，和/或所述第一物联网设备的业务优先级与所述第二物联网设备的业务优先级相同，则确定所述第一物联网设备与所述第二物联网设备的反馈优先级相同；以及所述发送单元还用于：在确定每个所述任一物联网设备的所述反馈优先级之后，按照每个所述任一物联网设备的所述反馈优先级由高到低的顺序，依次向每个所述任一物联网设备发送中继申请信令反馈信息。
在该技术方案中，每个所述任一物联网设备的反馈优先级与每个所述任一物联网设备的候选优先级和/或业务优先级成正相关，也即每个所述任一物联网设备的候选优先级越高和/或业务优先级越高，每个所述任一物联网设备的反馈优先级也就越高，每个所述任一物联网设备就会越早收到终端发送的中继申请信令反馈，且该任一物联网设备的业务优先级可以基于其QoS(Quality of Service)需求映射到QCI(QoS Class Identifier)表格，其取值范围为1到9的整数。
在上述技术方案中，优选地，所述判断单元还用于：在依次向每个所述任一物联网设备发送中继申请信令反馈信息之前，按照所述反馈优先级由高到低的顺序，依次判断所述终端的当前可用时频资源是否小于多个所述任一物联网设备中的每个所述任一物联网设备的所需时频资源；所述判 断单元还用于：若判断所述当前可用时频资源小于第一指定物联网设备的所需时频资源，则不向所述第一指定物联网设备发送所述中继申请信令反馈信息，并按照所述反馈优先级从高到低的顺序，依次判断所述当前可用时频资源是否大于或等于第二指定物联网设备的所需时频资源和/或所述终端当前已发送的所述中继申请信令反馈信息的总数目是否大于最大中继连接数目；所述发送单元还用于：在所述当前可用时频资源大于或等于所述第二指定物联网设备的所需时频资源和/或所述中继申请信令反馈信息的总数目小于所述最大中继连接数目时，向所述第二指定物联网设备发送所述中继申请信令反馈信息，否则，不向所述第二指定物联网设备发送所述中继申请信令反馈信息，其中，所述第二指定物联网设备的反馈优先级小于或等于所述第一物联网设备的反馈优先级，其中，所述第一指定物联网设备和所述第二指定物联网设备均为多个所述任一物联网设备中的物联网设备。
在该技术方案中，在依次向每个所述任一物联网设备发送中继申请信令反馈信息之前，可以按照反馈优先级由高到低的顺序，依次判断终端的当前可用时频资源是否小于多个所述任一物联网设备中的每个所述任一物联网设备的所需时频资源，若当前可用时频资源小于第一指定物联网设备的所需时频资源，则说明该终端当前的可用时频资源不足以为该第一指定物联网设备提供中继服务，则可以进一步按照反馈优先级从高到低的顺序，依次判断当前可用时频资源是否大于或等于反馈优先级较低的第二指定物联网设备的所需时频资源和/或终端已发送的中继申请信令反馈信息的总数目是否小于或等于最大中继连接数目，若当前可用时频资源大于或等于反馈优先级较低的第二指定物联网设备的所需时频资源和/或终端已发送的中继申请信令反馈信息的总数目小于或等于最大中继连接数目，则说明终端的当前中继条件良好，中继资源充足，中继能力还未达到上限，中继能力仍然有余，足以为反馈优先级较低的第二指定物联网设备提供中继服务，否则，则说明终端的当前中继条件比较差，中继能力不足以为反馈优先级较低的第二指定物联网设备提供中继服务，则不向第二指定物联网设备发送所述中继申请信令反馈信息。
本发明的再一方面提出了一种终端，所述终端与上述物联网设备相连接，所述终端包括处理器和存储器，其中，所述存储器中存储一组程序代码，且所述处理器用于调用所述存储器中存储的程序代码，用于执行以下操作：
在接收到多个物联网设备发送的中继寻找信令时，根据所述终端的当前中继条件，判断是否响应所述多个物联网设备中的任一物联网设备发送的中继寻找信令；在判断结果为是时，向所述任一物联网设备发送中继寻找信令反馈，以使所述任一物联网设备将所述终端作为所述任一物联网设备的候选中继终端集中的候选中继终端，并使所述任一物联网设备确定是否将所述终端作为所述物联网设备的目标中继终端集中的目标中继终端，并在确定将所述终端作为所述目标中继终端集中的目标中继终端后，向所述终端发送中继申请信令；在接收到所述物联网中多个所述任一物联网设备发送的中继申请信令时，根据多个所述任一物联网设备中每个所述任一物联网设备的中继申请信令中的优先级信息，确定每个所述任一物联网设备的反馈优先级，以使多个所述任一物联网设备中的每个所述任一物联网设备确定是否通过所述终端转发向所在服务小区中的具有基站功能的设备发送的上行数据，其中，所述反馈优先级为向每个所述任一物联网设备发送中继申请信令反馈的优先级。
在上述技术方案中，优选地，所述优先级信息包括：所述终端在每个所述任一物联网设备的候选中继终端集中所处的候选优先级和/或每个所述任一物联网设备的业务优先级，且所述终端在所述目标中继终端集中所处的候选优先级与所述终端在所述候选中继终端集中所处的候选优先级相同；以及
在该技术方案中，所述处理器根据多个所述任一物联网设备中每个所述任一物联网设备的中继申请信令中的优先级信息确定每个所述任一物联网设备的反馈优先级，具体包括：每个所述任一物联网设备的反馈优先级与每个所述任一物联网设备的候选优先级和/或业务优先级成正相关；且若所述终端在多个所述任一物联网设备中的第一物联网设备的目标中继终端集中所处的候选优先级，与所述终端在多个所述任一物联网设备中的第二 物联网设备的目标中继终端集中所处的候选优先级相同，和/或所述第一物联网设备的业务优先级与所述第二物联网设备的业务优先级相同，则确定所述第一物联网设备与所述第二物联网设备的反馈优先级相同；以及在确定每个所述任一物联网设备的所述反馈优先级之后，按照每个所述任一物联网设备的所述反馈优先级由高到低的顺序，依次向每个所述任一物联网设备发送中继申请信令反馈信息。
在上述技术方案中，优选地，所述处理器在依次向每个所述任一物联网设备发送中继申请信令反馈信息之前，还执行以下操作：
按照所述反馈优先级由高到低的顺序，依次判断所述终端的当前可用时频资源是否小于多个所述任一物联网设备中的每个所述任一物联网设备的所需时频资源；若判断所述当前可用时频资源小于第一指定物联网设备的所需时频资源，则不向所述第一指定物联网设备发送所述中继申请信令反馈信息，并按照所述反馈优先级从高到低的顺序，依次判断所述当前可用时频资源是否大于或等于第二指定物联网设备的所需时频资源和/或所述终端当前已发送的所述中继申请信令反馈信息的总数目是否大于最大中继连接数目；在所述当前可用时频资源大于或等于所述第二指定物联网设备的所需时频资源和/或所述中继申请信令反馈信息的总数目小于所述最大中继连接数目时，向所述第二指定物联网设备发送所述中继申请信令反馈信息，否则，不向所述第二指定物联网设备发送所述中继申请信令反馈信息，其中，所述第二指定物联网设备的反馈优先级小于或等于所述第一物联网设备的反馈优先级，其中，所述第一指定物联网设备和所述第二指定物联网设备均为多个所述任一物联网设备中的物联网设备。在该技术方案中，通过在终端中设置物联网中的数据传输系统，可以实现在选择中继终端时，能够综合物联网中的每个终端的信令处理能力和能耗情况、每个终端分别与物联网设备和基站的信道质量以及物联网设备的数据业务需求，为物联网设备选择最优中继终端，进而为物联网设备选择最优中继路径。
本发明的再一方面提出了一种物联网系统，包括：具有基站功能的设备；如上述技术方案中的所述的物联网设备；和如上述技术方案中的所述 的终端。
在该技术方案中，通过由具有基站功能的设备、物联网设备和终端组成的物联网系统，可以实现在选择中继终端时，能够综合物联网设备中的每个终端的信令处理能力和能耗情况、每个终端分别与物联网设备和基站的信道质量以及物联网设备的数据业务需求，为物联网设备选择最优中继终端，进而为物联网设备选择最优中继路径。
在上述技术方案中，优选地，所述物联网系统包括基于LTE网络的物联网系统。
在该技术方案中，物联网系统包括但不限于基于LTE网络的物联网系统，也可以是基于3G网络的物联网系统，或虽然技术的进步可以是基于5G等网络的物联网系统。
通过本发明的技术方案，可以实现在选择中继终端时，能够综合物联网中的每个终端的信令处理能力和能耗情况、每个终端分别与物联网设备和基站的信道质量以及物联网设备的数据业务需求，为物联网设备选择最优中继终端，进而为物联网设备选择最优中继路径。
附图说明
图1示出了根据本发明的一个实施例的物联网中的数据传输方法的流程示意图；
图2示出了根据本发明的另一个实施例的物联网中的数据传输方法的流程示意图；
图3示出了根据本发明的又一个实施例的物联网中的数据传输方法的流程示意图；
图4示出了根据本发明的一个实施例的物联网中的数据传输系统的结构示意图；
图5示出了根据本发明的一个实施例的物联网设备的结构示意图；
图6示出了根据本发明的另一个实施例的物联网中的数据传输系统的结构示意图；
图7示出了根据本发明的一个实施例的终端的结构示意图；
图8示出了根据本发明的一个实施例的物联网系统的结构示意图；
图9示出了根据本发明的一个实施例的物联网中的数据传输系统的原理示意图；
图10示出了根据本发明的另一个实施例的物联网设备的结构示意图；
图11示出了根据本发明的另一个实施例的终端的结构示意图。
具体实施方式
为了可以更清楚地理解本发明的上述目的、特征和优点，下面结合附图和具体实施方式对本发明进行进一步的详细描述。需要说明的是，在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多具体细节以便于充分理解本发明，但是，本发明还可以采用其他不同于在此描述的其他方式来实施，因此，本发明的保护范围并不受下面公开的具体实施例的限制。
图1示出了根据本发明的一个实施例的物联网中的数据传输方法的流程示意图。
如图1所示，根据本发明的一个实施例的物联网中的数据传输方法，包括：步骤102，向所述物联网设备所在的服务小区中的多个终端发送中继寻找信令；步骤104，接收来自至少一个终端发送的中继寻找信令反馈，并将所述至少一个终端作为所述物联网设备的候选中继终端集中的候选中继终端；步骤106，根据接收到的所述候选中继终端集中每个候选中继终端的所述中继寻找信令反馈，确定所述物联网设备的目标中继终端集；步骤108，向所述目标中继终端集中的目标中继终端发送中继申请信令，以申请通过所述目标中继终端转发向所述服务小区中的具有基站功能的设备发送的上行数据，其中，所述多个终端包括所述至少一个终端。
在该技术方案中，通过向物联网设备所在的服务小区中的多个终端发送中继寻找信令，可以使多个终端根据自身的当前中继条件(如终端是否支持为物联网设备转发向所在当前小区中的具有基站功能的设备发送的上行数据、终端是否开启转发上行数据的服务、终端是否空闲、终端的当前时频资源是否高于转发上行数据所需的时频资源、终端支持的最大中继连 接数目等)决定是否响应物联网设备的中继寻找信令，如果当前中继条件比较理想，则响应，并发送中继寻找信令反馈，以使物联网设备将发送中继寻找信令反馈的终端作为候选中继终端，进而根据中继寻找信令反馈从候选中继终端集中进一步筛选出中继条件更好的终端作为目标中继终端，并向目标中继终端集中的每个或部分目标中继终端发送中继申请信令，以申请通过中继能力等中继条件较好的目标中继终端转发向服务小区中的具有基站功能的设备发送的上行数据，从而实现综合终端的信令处理能力和能耗情况，选择出较优的中继路径实现数据的转发。其中，具有基站功能的设备包括基站、通过通信设备(如智能手机等)实现的微小区基站等。
在上述技术方案中，优选地，所述中继寻找信令反馈包括：所述物联网设备至每个所述候选中继终端的第一信道质量和/或每个所述候选中继终端至所述具有基站功能的设备的第二信道质量；以及根据接收到的所述候选中继终端集中每个候选中继终端的所述中继寻找信令反馈，确定所述物联网设备的目标中继终端集，具体包括：根据与所述每个所述候选中继终端相对应的所述第一信道质量和/或所述第二信道质量计算出与所述每个所述候选中继终端相对应的所述物联网设备至所述具有基站功能的设备的等效信道质量；根据与所述每个所述候选中继终端相对应的所述等效信道质量确定每个所述候选中继终端在所述候选中继终端集中所处的候选优先级；判断所述候选中继终端集中的任一候选中继终端的候选优先级是否高于预设候选优先级，在判断结果为是时，则将所述任一候选中继终端作为所述目标中继终端集中的目标中继终端，且所述目标中继终端在所述目标中继终端集中所处的候选优先级与所述目标中继终端在所述候选中继终端集中所处的候选优先级相同；否则，确定所述任一候选中继终端不是所述目标中继终端集中的目标中继终端。
在该技术方案中，通过与每个候选中继终端相对应的第一信道质量和/或第二信道质量可以准确地计算出与每个所述候选中继终端相对应的物联网设备至具有基站功能的设备的等效信道质量，然后可以确定每个候选中继终端在候选中继终端集中所处的候选优先级，当然，等效信道质量越高，候选优先级也就越高，且若任一候选中继终端的候选优先级高于预设候选 优先级，则说明物联网设备至该任一候选中继终端和该任一候选中继终端至具有基站功能的设备的信道质量均较高，则可以将该任一候选中继终端进一步作为当前中继条件较好的目标中继终端，以实现综合物联网中的每个终端的信令处理能力和能耗情况、每个终端分别与物联网设备和基站的信道质量，为物联网设备选择较优的中继终端，进而为物联网设备选择较优的中继路径，并最终提高数据转发的速率和效率，提高整个物联网设备的系统数据处理速率，当然，等效信道质量的算法有多种，可以是某些数学统计方法或者曲线拟合函数，也可以简化为取第一信道质量和第二信道质量的加权平均值。
在上述技术方案中，优选地，所述中继申请信令包括：所述任一目标中继终端在所述目标中继终端集中所处的候选优先级和/或所述物联网设备的业务优先级；以及在向所述目标中继终端集中的每个所述目标中继终端发送所述中继申请信令后，若接收到所述目标中继终端集中的任一目标中继终端发送的中继申请信令反馈信息，则判断所述任一目标中继终端发送的所述中继申请信令反馈信息是否为接收到的至少一个中继申请信令反馈信息中最先接收的中继申请信令反馈信息，并在判断结果为是时，将所述任一目标中继终端作为所述物联网设备的最终中继终端，以通过所述最终中继终端转发向所述具有基站功能的设备发送的上行数据；以及在向所述目标中继终端发送所述中继申请信令后，若在预定时间内未接收到所述目标中继终端集中的任一目标中继终端发送的中继申请信令反馈信息，则重新向所述多个终端发送中继寻找信令。
在该技术方案中，在向每个目标中继终端发送中继申请信令后，若接收到目标中继终端集中的任一目标中继终端发送的中继申请信令反馈信息，则进一步判断该任一目标中继终端发送的中继申请信令反馈信息是否为接收到的至少一个中继申请信令反馈信息中最先接收的中继申请信令反馈信息，若是，则说明该任一目标中继终端是目标中继终端集中当前中继条件最优的目标中继终端，该任一目标中继终端对应的转发路径也是物联网设备进行数据转发的最优中继路径，对应的其数据转发的速率和效率也是最高的，因此，可以选择将该任一目标中继终端作为最终中继终端，以 实现综合物联网中的每个终端的信令处理能力和能耗情况、每个终端分别与物联网设备和基站的信道质量以及物联网设备的业务需求，为物联网设备选择最优的中继终端，进而为物联网设备选择最优的中继路径；反之，若在预定时间内未接收到目标中继终端集中的任一目标中继终端发送的中继申请信令反馈信息，则说明目标中继终端集的每个目标中继终端的当前中继条件都不足以为物联网设备提供中继服务，则需要重新向多个终端发送中继寻找信令，以重新申请当前中继条件较好的中继终端完成数据的转发。
图2示出了根据本发明的另一个实施例的物联网中的数据传输方法的流程示意图。
如图2所示，根据本发明的另一个实施例的物联网中的数据传输方法，包括：步骤202，在接收到多个物联网设备发送的中继寻找信令时，根据所述终端的当前中继条件，判断是否响应所述多个物联网设备中的任一物联网设备发送的中继寻找信令；步骤204，在判断结果为是时，向所述任一物联网设备发送中继寻找信令反馈，以使所述任一物联网设备将所述终端作为所述任一物联网设备的候选中继终端集中的候选中继终端，并使所述任一物联网设备确定是否将所述终端作为所述物联网设备的目标中继终端集中的目标中继终端，并在确定将所述终端作为所述目标中继终端集中的目标中继终端后，向所述终端发送中继申请信令；步骤206，在接收到所述物联网中多个所述任一物联网设备发送的中继申请信令时，根据多个所述任一物联网设备中每个所述任一物联网设备的中继申请信令中的优先级信息，确定每个所述任一物联网设备的反馈优先级，以使多个所述任一物联网设备中的每个所述任一物联网设备确定是否通过所述终端转发向所在服务小区中的具有基站功能的设备发送的上行数据，其中，所述反馈优先级为向每个所述任一物联网设备发送中继申请信令反馈的优先级。
在该技术方案中，在接收到多个物联网设备发送的中继寻找信令时，可以根据自身的当前中继条件(如终端是否支持为物联网设备转发向所在当前小区中的具有基站功能的设备发送的上行数据、终端是否开启转发上行数据的服务、终端是否空闲、终端的当前时频资源是否高于转发上行数 据所需的时频资源、终端支持的最大中继连接数目等)决定是否响应多个物联网设备的中继寻找信令，如果当前中继条件比较理想，则响应，并向任一物联网设备发送中继寻找信令反馈，以使物联网设备将该终端作为候选中继终端，进而根据中继寻找信令反馈确定是否将该候选中继终端进一步筛选出来作为中继条件更好的目标中继终端，如果该终端被物联网设备作为目标中继终端，就会接收到中继申请信令，且如果中继申请信令为多个时，终端就会自动地根据多个任一物联网设备中每个所述任一物联网设备的中继申请信令中的优先级信息，确定每个任一物联网设备的反馈优先级，以使多个所述任一物联网设备中的每个所述任一物联网设备根据反馈优先级最终准确确定是否通过该终端转发上行数据，从而可以实现在选择中继终端时，能够综合物联网设备中的每个终端的信令处理能力和能耗情况、每个终端分别与物联网设备和基站的信道质量以及物联网设备的数据业务需求，为物联网设备选择最优中继终端，进而为物联网设备选择最优中继路径。
在上述技术方案中，优选地，所述优先级信息包括：所述终端在每个所述任一物联网设备的候选中继终端集中所处的候选优先级和/或每个所述任一物联网设备的业务优先级，且所述终端在所述目标中继终端集中所处的候选优先级与所述终端在所述候选中继终端集中所处的候选优先级相同；以及所述根据多个所述任一物联网设备中每个所述任一物联网设备的中继申请信令中的优先级信息确定每个所述任一物联网设备的反馈优先级，具体包括：每个所述任一物联网设备的反馈优先级与每个所述任一物联网设备的候选优先级和/或业务优先级成正相关；且若所述终端在多个所述任一物联网设备中的第一物联网设备的目标中继终端集中所处的候选优先级，与所述终端在多个所述任一物联网设备中的第二物联网设备的目标中继终端集中所处的候选优先级相同，和/或所述第一物联网设备的业务优先级与所述第二物联网设备的业务优先级相同，则确定所述第一物联网设备与所述第二物联网设备的反馈优先级相同；以及在确定每个所述任一物联网设备的所述反馈优先级之后，按照每个所述任一物联网设备的所述反馈优先级由高到低的顺序，依次向每个所述任一物联网设备发送中继申请 信令反馈信息。
在该技术方案中，每个所述任一物联网设备的反馈优先级与每个所述任一物联网设备的候选优先级和/或业务优先级成正相关，也即每个所述任一物联网设备的候选优先级越高和/或业务优先级越高，每个所述任一物联网设备的反馈优先级也就越高，每个所述任一物联网设备就会越早收到终端发送的中继申请信令反馈，且该任一物联网设备的业务优先级可以基于其QoS(Quality of Service)需求映射到QCI(QoS Class Identifier)表格，其取值范围为1到9的整数。
在上述技术方案中，优选地，在依次向每个所述任一物联网设备发送中继申请信令反馈信息之前，还包括：按照所述反馈优先级由高到低的顺序，依次判断所述终端的当前可用时频资源是否小于多个所述任一物联网设备中的每个所述任一物联网设备的所需时频资源；若判断所述当前可用时频资源小于第一指定物联网设备的所需时频资源，则不向所述第一指定物联网设备发送所述中继申请信令反馈信息，并按照所述反馈优先级从高到低的顺序，依次判断所述当前可用时频资源是否大于或等于第二指定物联网设备的所需时频资源和/或所述终端当前已发送的所述中继申请信令反馈信息的总数目是否大于最大中继连接数目；在所述当前可用时频资源大于或等于所述第二指定物联网设备的所需时频资源和/或所述中继申请信令反馈信息的总数目小于所述最大中继连接数目时，向所述第二指定物联网设备发送所述中继申请信令反馈信息，否则，不向所述第二指定物联网设备发送所述中继申请信令反馈信息，其中，所述第二指定物联网设备的反馈优先级小于或等于所述第一物联网设备的反馈优先级，其中，所述第一指定物联网设备和所述第二指定物联网设备均为多个所述任一物联网设备中的物联网设备。
在该技术方案中，在依次向每个所述任一物联网设备发送中继申请信令反馈信息之前，可以按照反馈优先级由高到低的顺序，依次判断终端的当前可用时频资源是否小于多个所述任一物联网设备中的每个所述任一物联网设备的所需时频资源，若当前可用时频资源小于第一指定物联网设备的所需时频资源，则说明该终端当前的可用时频资源不足以为该第一指定 物联网设备提供中继服务，则可以进一步按照反馈优先级从高到低的顺序，依次判断当前可用时频资源是否大于或等于反馈优先级较低的第二指定物联网设备的所需时频资源和/或终端已发送的中继申请信令反馈信息的总数目是否小于或等于最大中继连接数目，若当前可用时频资源大于或等于反馈优先级较低的第二指定物联网设备的所需时频资源和/或终端已发送的中继申请信令反馈信息的总数目小于或等于最大中继连接数目，则说明终端的当前中继条件良好，中继资源充足，中继能力还未达到上限，中继能力仍然有余，足以为反馈优先级较低的第二指定物联网设备提供中继服务，否则，则说明终端的当前中继条件比较差，中继能力不足以为反馈优先级较低的第二指定物联网设备提供中继服务，则不向第二指定物联网设备发送所述中继申请信令反馈信息。
在上述技术方案中，优选地，所述当前中继条件包括：所述终端是否支持为所述任一物联网设备转发向所在当前小区中的具有基站功能的设备发送的上行数据、所述终端是否开启转发所述上行数据的服务、所述终端是否空闲、所述终端的电量是否高于预设电量、所述终端的当前时频资源是否高于转发所述上行数据所需的时频资源、所述终端支持的最大中继连接数目、所述任一物联网设备至所述终端的第一信道质量、所述终端至所述具有基站功能的设备的第二信道质量、所述终端的移动性中的至少一个条件。
在该技术方案中，通过上述当前中继条件，可以使终端准确判断是否响应物联网设备的中继寻找信令，进而为物联网设备综合终端的中继能力等当前中继条件筛选出中继条件和中继路径较好的终端作为中继终端提供了必要的前提条件。
图3示出了根据本发明的又一个实施例的物联网中的数据传输方法的流程示意图。
如图3所示，根据本发明的又一个实施例的物联网中的数据传输方法，包括：
步骤302，Device(物联网设备)发送中继寻找信令，寻找并确定候选UE Relay集(候选中继终端集)，并根据每个候选中继终端返回的中继寻 找信令反馈，确定目标中继终端集；
步骤304，目标UE Relay集中的每个目标中继终端按照Device选择它作为辅助的候选优先级值和Device的业务优先级值从小到大进行为多个Device排队缓存；
步骤306，判断队列是否为空，在判断结果为否时，进入步骤308；否则，重新进入步骤304。
步骤308，目标UE Relay根据eNB广播信息判断是否是优先级算法的触发时刻，在判断结果为是时，执行步骤310；否则，执行步骤308。
步骤310，目标UE Relay从优先级最高的Device开始判断，即控制i＝1。
步骤312，判断目标UE Relay的当前可用时频资源是否能够满足队列中第i个Device的业务数据传输。
步骤322，在判断结果为否时，判断目标UE Relay的当前可用时频资源是否满足优先级较低的下一个Device的业务数据传输，即控制i＝i+1。
步骤314，在判断结果为是时，判断目标UE Relay的剩余可用资源是否为0或中继数目达到上限。
步骤316，在判断结果为否时，更新队列缓存，判断该队列是否分析完毕。
步骤318，在判断目标UE Relay的当前可用时频资源能够满足队列中第i个Device的业务数据传输时，将相应UE Relay辅助信息反馈到该Device。
步骤320，Device将反馈最先到达的目标UE Relay作为最终的中继终端，且若Device在T时段内没收到反馈，则重新发起寻找流程。
图4示出了根据本发明的一个实施例的物联网中的数据传输系统的结构示意图。
如图4所示，根据本发明的一个实施例的物联网中的数据传输系统400，包括：第一发送单元402，向所述物联网设备所在的服务小区中的多个终端发送中继寻找信令；接收单元404，接收来自至少一个终端发送的中继寻找信令反馈，并将所述至少一个终端作为所述物联网设备的候选中继终端集中的候选中继终端；确定单元406，根据接收到的所述候选中继 终端集中每个候选中继终端的所述中继寻找信令反馈，确定所述物联网设备的目标中继终端集；第二发送单元408，向所述目标中继终端集中的目标中继终端发送中继申请信令，以申请通过所述目标中继终端转发向所述服务小区中的具有基站功能的设备发送的上行数据，其中，所述多个终端包括所述至少一个终端。
在该技术方案中，通过向物联网设备所在的服务小区中的多个终端发送中继寻找信令，可以使多个终端根据自身的当前中继条件(如终端是否支持为物联网设备转发向所在当前小区中的具有基站功能的设备发送的上行数据、终端是否开启转发上行数据的服务、终端是否空闲、终端的当前时频资源是否高于转发上行数据所需的时频资源、终端支持的最大中继连接数目等)决定是否响应物联网设备的中继寻找信令，如果当前中继条件比较理想，则响应，并发送中继寻找信令反馈，以使物联网设备将发送中继寻找信令反馈的终端作为候选中继终端，进而根据中继寻找信令反馈从候选中继终端集中进一步筛选出中继条件更好的终端作为目标中继终端，并向目标中继终端集中的每个或部分目标中继终端发送中继申请信令，以申请通过中继能力等中继条件较好的目标中继终端转发向服务小区中的具有基站功能的设备发送的上行数据，从而实现综合终端的信令处理能力和能耗情况，选择出较优的中继路径实现数据的转发。其中，具有基站功能的设备包括基站、通过通信设备(如智能手机等)实现的微小区基站等。
在上述技术方案中，优选地，所述中继寻找信令反馈包括：所述物联网设备至每个所述候选中继终端的第一信道质量和/或每个所述候选中继终端至所述具有基站功能的设备的第二信道质量；以及所述确定单元406具体用于：根据与所述每个所述候选中继终端相对应的所述第一信道质量和/或所述第二信道质量计算出与所述每个所述候选中继终端相对应的所述物联网设备至所述具有基站功能的设备的等效信道质量；根据与所述每个所述候选中继终端相对应的所述等效信道质量确定每个所述候选中继终端在所述候选中继终端集中所处的候选优先级；判断所述候选中继终端集中的任一候选中继终端的候选优先级是否高于预设候选优先级，在判断结果为是时，则将所述任一候选中继终端作为所述目标中继终端集中的目标 中继终端，且所述目标中继终端在所述目标中继终端集中所处的候选优先级与所述目标中继终端在所述候选中继终端集中所处的候选优先级相同；否则，确定所述任一候选中继终端不是所述目标中继终端集中的目标中继终端。
在该技术方案中，通过与每个候选中继终端相对应的第一信道质量和/或第二信道质量可以准确地计算出与每个所述候选中继终端相对应的物联网设备至具有基站功能的设备的等效信道质量，然后可以确定每个候选中继终端在候选中继终端集中所处的候选优先级，当然，等效信道质量越高，候选优先级也就越高，且若任一候选中继终端的候选优先级高于预设候选优先级，则说明物联网设备至该任一候选中继终端和该任一候选中继终端至具有基站功能的设备的信道质量均较高，则可以将该任一候选中继终端进一步作为当前中继条件较好的目标中继终端，以实现综合物联网中的每个终端的信令处理能力和能耗情况、每个终端分别与物联网设备和基站的信道质量，为物联网设备选择较优的中继终端，进而为物联网设备选择较优的中继路径，并最终提高数据转发的速率和效率，提高整个物联网设备的系统数据处理速率，当然，等效信道质量的算法有多种，可以是某些数学统计方法或者曲线拟合函数，也可以简化为取第一信道质量和第二信道质量的加权平均值。
在上述技术方案中，优选地，所述中继申请信令包括：所述任一目标中继终端在所述目标中继终端集中所处的候选优先级和/或所述物联网设备的业务优先级；以及判断单元410，在向所述目标中继终端集中的每个所述目标中继终端发送所述中继申请信令后，若接收到所述目标中继终端集中的任一目标中继终端发送的中继申请信令反馈信息，则判断所述任一目标中继终端发送的所述中继申请信令反馈信息是否为接收到的至少一个中继申请信令反馈信息中最先接收的中继申请信令反馈信息，并在判断结果为是时，将所述任一目标中继终端作为所述物联网设备的最终中继终端，以通过所述最终中继终端转发向所述具有基站功能的设备发送的上行数据；以及所述第一发送单元402还用于：在向所述目标中继终端发送所述中继申请信令后，若在预定时间内未接收到所述目标中继终端集中的任一 目标中继终端发送的中继申请信令反馈信息，则重新向所述多个终端发送中继寻找信令。
在该技术方案中，在向每个目标中继终端发送中继申请信令后，若接收到目标中继终端集中的任一目标中继终端发送的中继申请信令反馈信息，则进一步判断该任一目标中继终端发送的中继申请信令反馈信息是否为接收到的至少一个中继申请信令反馈信息中最先接收的中继申请信令反馈信息，若是，则说明该任一目标中继终端是目标中继终端集中当前中继条件最优的目标中继终端，该任一目标中继终端对应的转发路径也是物联网设备进行数据转发的最优中继路径，对应的其数据转发的速率和效率也是最高的，因此，可以选择将该任一目标中继终端作为最终中继终端，以实现综合物联网中的每个终端的信令处理能力和能耗情况、每个终端分别与物联网设备和基站的信道质量以及物联网设备的业务需求，为物联网设备选择最优的中继终端，进而为物联网设备选择最优的中继路径；反之，若在预定时间内未接收到目标中继终端集中的任一目标中继终端发送的中继申请信令反馈信息，则说明目标中继终端集的每个目标中继终端的当前中继条件都不足以为物联网设备提供中继服务，则需要重新向多个终端发送中继寻找信令，以重新申请当前中继条件较好的中继终端完成数据的转发。
图5示出了根据本发明的一个实施例的物联网设备的结构示意图。
如图5所示，根据本发明的一个实施例的物联网设备500，包括：上述技术方案中的任一项物联网中的数据传输系统400。
在该技术方案中，通过在物联网设备500上设置物联网中的数据传输系统400，可以实现在选择中继终端时，能够综合物联网设备500中的每个终端的信令处理能力和能耗情况、每个终端分别与物联网设备500和基站的信道质量以及物联网设备500的数据业务需求，为物联网设备500选择最优中继终端，进而为物联网设备500选择最优中继路径。
图6示出了根据本发明的另一个实施例的物联网中的数据传输系统的结构示意图。
如图6所示，根据本发明的另一个实施例的物联网中的数据传输系统 600，包括：判断单元602，在接收到多个物联网设备发送的中继寻找信令时，根据所述终端的当前中继条件，判断是否响应所述多个物联网设备中的任一物联网设备发送的中继寻找信令；发送单元604，在判断结果为是时，向所述任一物联网设备发送中继寻找信令反馈，以使所述任一物联网设备将所述终端作为所述任一物联网设备的候选中继终端集中的候选中继终端，并使所述任一物联网设备确定是否将所述终端作为所述物联网设备的目标中继终端集中的目标中继终端，并在确定将所述终端作为所述目标中继终端集中的目标中继终端后，向所述终端发送中继申请信令；确定单元606，在接收到所述物联网中多个所述任一物联网设备发送的中继申请信令时，根据多个所述任一物联网设备中每个所述任一物联网设备的中继申请信令中的优先级信息，确定每个所述任一物联网设备的反馈优先级，以使多个所述任一物联网设备中的每个所述任一物联网设备确定是否通过所述终端转发向所在服务小区中的具有基站功能的设备发送的上行数据，其中，所述反馈优先级为向每个所述任一物联网设备发送中继申请信令反馈的优先级。
在该技术方案中，在接收到多个物联网设备发送的中继寻找信令时，可以根据自身的当前中继条件(如终端是否支持为物联网设备转发向所在当前小区中的具有基站功能的设备发送的上行数据、终端是否开启转发上行数据的服务、终端是否空闲、终端的当前时频资源是否高于转发上行数据所需的时频资源、终端支持的最大中继连接数目等)决定是否响应多个物联网设备的中继寻找信令，如果当前中继条件比较理想，则响应，并向任一物联网设备发送中继寻找信令反馈，以使物联网设备将该终端作为候选中继终端，进而根据中继寻找信令反馈确定是否将该候选中继终端进一步筛选出来作为中继条件更好的目标中继终端，如果该终端被物联网设备作为目标中继终端，就会接收到中继申请信令，且如果中继申请信令为多个时，终端就会自动地根据多个任一物联网设备中每个所述任一物联网设备的中继申请信令中的优先级信息，确定每个任一物联网设备的反馈优先级，以使多个所述任一物联网设备中的每个所述任一物联网设备根据反馈优先级最终准确确定是否通过该终端转发上行数据，从而可以实现在选择 中继终端时，能够综合物联网中的每个终端的信令处理能力和能耗情况、每个终端分别与物联网设备和基站的信道质量以及物联网设备的数据业务需求，为物联网设备选择最优中继终端，进而为物联网设备选择最优中继路径。
在上述技术方案中，优选地，所述优先级信息包括：所述终端在每个所述任一物联网设备的候选中继终端集中所处的候选优先级和/或每个所述任一物联网设备的业务优先级，且所述终端在所述目标中继终端集中所处的候选优先级与所述终端在所述候选中继终端集中所处的候选优先级相同；以及每个所述任一物联网设备的反馈优先级与每个所述任一物联网设备的候选优先级和/或业务优先级成正相关；且若所述终端在多个所述任一物联网设备中的第一物联网设备的目标中继终端集中所处的候选优先级，与所述终端在多个所述任一物联网设备中的第二物联网设备的目标中继终端集中所处的候选优先级相同，和/或所述第一物联网设备的业务优先级与所述第二物联网设备的业务优先级相同，则确定所述第一物联网设备与所述第二物联网设备的反馈优先级相同；以及所述发送单元604还用于：在确定每个所述任一物联网设备的所述反馈优先级之后，按照每个所述任一物联网设备的所述反馈优先级由高到低的顺序，依次向每个所述任一物联网设备发送中继申请信令反馈信息。
在该技术方案中，每个所述任一物联网设备的反馈优先级与每个所述任一物联网设备的候选优先级和/或业务优先级成正相关，也即每个所述任一物联网设备的候选优先级越高和/或业务优先级越高，每个所述任一物联网设备的反馈优先级也就越高，每个所述任一物联网设备就会越早收到终端发送的中继申请信令反馈，且该任一物联网设备的业务优先级可以基于其QoS(Quality of Service)需求映射到QCI(QoS Class Identifier)表格，其取值范围为1到9的整数。
在上述技术方案中，优选地，所述判断单元602还用于：在依次向每个所述任一物联网设备发送中继申请信令反馈信息之前，按照所述反馈优先级由高到低的顺序，依次判断所述终端的当前可用时频资源是否小于多个所述任一物联网设备中的每个所述任一物联网设备的所需时频资源；所 述判断单元602还用于：若判断所述当前可用时频资源小于第一指定物联网设备的所需时频资源，则不向所述第一指定物联网设备发送所述中继申请信令反馈信息，并按照所述反馈优先级从高到低的顺序，依次判断所述当前可用时频资源是否大于或等于第二指定物联网设备的所需时频资源和/或所述终端当前已发送的所述中继申请信令反馈信息的总数目是否大于最大中继连接数目；所述发送单元604还用于：在所述当前可用时频资源大于或等于所述第二指定物联网设备的所需时频资源和/或所述中继申请信令反馈信息的总数目小于所述最大中继连接数目时，向所述第二指定物联网设备发送所述中继申请信令反馈信息，否则，不向所述第二指定物联网设备发送所述中继申请信令反馈信息，其中，所述第二指定物联网设备的反馈优先级小于或等于所述第一物联网设备的反馈优先级，其中，所述第一指定物联网设备和所述第二指定物联网设备均为多个所述任一物联网设备中的物联网设备。
在该技术方案中，在依次向每个所述任一物联网设备发送中继申请信令反馈信息之前，可以按照反馈优先级由高到低的顺序，依次判断终端的当前可用时频资源是否小于多个所述任一物联网设备中的每个所述任一物联网设备的所需时频资源，若当前可用时频资源小于第一指定物联网设备的所需时频资源，则说明该终端当前的可用时频资源不足以为该第一指定物联网设备提供中继服务，则可以进一步按照反馈优先级从高到低的顺序，依次判断当前可用时频资源是否大于或等于反馈优先级较低的第二指定物联网设备的所需时频资源和/或终端已发送的中继申请信令反馈信息的总数目是否小于或等于最大中继连接数目，若当前可用时频资源大于或等于反馈优先级较低的第二指定物联网设备的所需时频资源和/或终端已发送的中继申请信令反馈信息的总数目小于或等于最大中继连接数目，则说明终端的当前中继条件良好，中继资源充足，中继能力还未达到上限，中继能力仍然有余，足以为反馈优先级较低的第二指定物联网设备提供中继服务，否则，则说明终端的当前中继条件比较差，中继能力不足以为反馈优先级较低的第二指定物联网设备提供中继服务，则不向第二指定物联网设备发送所述中继申请信令反馈信息。
图7示出了根据本发明的一个实施例的终端的结构示意图。
如图7所示，根据本发明的一个实施例的终端700，包括：如上述技术方案中任一项所述的物联网中的数据传输系统600。
在该技术方案中，通过在终端700中设置物联网中的数据传输系统600，可以实现在选择中继终端时，能够综合物联网中的每个终端的信令处理能力和能耗情况、每个终端分别与物联网设备和基站的信道质量以及物联网设备的数据业务需求，为物联网设备选择最优中继终端，进而为物联网设备选择最优中继路径。
图8示出了根据本发明的一个实施例的物联网系统的结构示意图。
如图8所示，根据本发明的一个实施例的物联网系统800，包括：具有基站功能的设备802；如上述技术方案中的所述的物联网设备500；和如上述技术方案中的所述的终端700。
在该技术方案中，通过由具有基站功能的设备800、物联网设备500和终端组成的物联网系统700，可以实现在选择中继终端时，能够综合物联网中的每个终端的信令处理能力和能耗情况、每个终端分别与物联网和具有基站功能的设备802的信道质量以及物联网设备500的数据业务需求，为物联网设备500选择最优中继终端，进而为物联网设备选择最优中继路径。
在上述技术方案中，优选地，所述物联网系统800包括基于LTE网络的物联网系统。
在该技术方案中，物联网系统800包括但不限于基于LTE网络的物联网系统，也可以是基于3G网络的物联网系统，或虽然技术的进步可以是基于5G等网络的物联网系统。
图9示出了根据本发明的一个实施例的物联网中的数据传输系统的原理示意图。
下面将结合图9进一步说明本发明的技术方案：
如图9所示，物联网设备Device 1、Device 2的候选中继集合均为{UE Relay 1，UE Relay 2，UE Relay 3}，然后，综合物联网设备中的每个候选中继终端的信令处理能力和能耗情况、每个候选中继终端分别与物联网设 备Device 1、Device 2的第一信道质量和与基站的第二信道质量以及物联网设备Device 1、Device 2的数据业务需求，可以为物联网设备Device 1、Device 2选择最优中继终端，进而为物联网设备Device 1、Device 2选择最优中继路径，即物联网设备Device 1应该选择UE Relay 1作为最终的中继终端以与基站通信，物联网设备Device 2应该选择UE Relay 2作为最终的中继终端以与基站通信。
图10示出了根据本发明的另一个实施例的物联网设备的结构示意图；
如图10所示，所述物联网设备10可以包括：至少一个处理器101，例如CPU，至少一个通信总线102和存储器103；通信总线62用于实现这些组件之间的连接通信；存储器103可以是高速RAM存储器，也可以是非易失性存储器(non-volatile memory)，例如至少一个磁盘存储器。存储器103中存储一组程序代码，且处理器101用于调用存储器103中存储的程序代码，执行以下操作：
向物联网设备所在的服务小区中的多个终端发送中继寻找信令；接收来自至少一个终端发送的中继寻找信令反馈，并将所述至少一个终端作为所述物联网设备的候选中继终端集中的候选中继终端；根据接收到的所述候选中继终端集中每个候选中继终端的所述中继寻找信令反馈，确定所述物联网设备的目标中继终端集；向所述目标中继终端集中的目标中继终端发送中继申请信令，以申请通过所述目标中继终端转发向所述服务小区中的具有基站功能的设备发送的上行数据，其中，所述多个终端包括所述至少一个终端。
在上述技术方案中，优选地，所述中继寻找信令反馈包括：所述物联网设备至每个所述候选中继终端的第一信道质量和/或每个所述候选中继终端至所述具有基站功能的设备的第二信道质量；以及
在该技术方案中，所述处理器101根据接收到的所述候选中继终端集中每个候选中继终端的所述中继寻找信令反馈，确定所述物联网设备的目标中继终端集，具体包括：
根据与所述每个所述候选中继终端相对应的所述第一信道质量和/或所述第二信道质量计算出与所述每个所述候选中继终端相对应的所述物联 网设备至所述具有基站功能的设备的等效信道质量；根据与所述每个所述候选中继终端相对应的所述等效信道质量确定每个所述候选中继终端在所述候选中继终端集中所处的候选优先级；判断所述候选中继终端集中的任一候选中继终端的候选优先级是否高于预设候选优先级，在判断结果为是时，则将所述任一候选中继终端作为所述目标中继终端集中的目标中继终端，且所述目标中继终端在所述目标中继终端集中所处的候选优先级与所述目标中继终端在所述候选中继终端集中所处的候选优先级相同；否则，确定所述任一候选中继终端不是所述目标中继终端集中的目标中继终端。
在上述技术方案中，优选地，所述中继申请信令包括：所述任一目标中继终端在所述目标中继终端集中所处的候选优先级和/或所述物联网设备的业务优先级；以及
在该技术方案中，所述处理器101在向所述目标中继终端集中的所述目标中继终端发送所述中继申请信令后，若接收到所述目标中继终端集中的任一目标中继终端发送的中继申请信令反馈信息，则判断所述任一目标中继终端发送的所述中继申请信令反馈信息是否为接收到的至少一个中继申请信令反馈信息中最先接收的中继申请信令反馈信息，并在判断结果为是时，将所述任一目标中继终端作为所述物联网设备的最终中继终端，以通过所述最终中继终端转发向所述具有基站功能的设备发送的上行数据；以及
所述处理器101在向所述目标中继终端发送所述中继申请信令后，若在预定时间内未接收到所述目标中继终端集中的任一目标中继终端发送的中继申请信令反馈信息，则重新向所述多个终端发送中继寻找信令。
图11示出了根据本发明的另一个实施例的终端的结构示意图
如图11所示，所述终端11可以包括：至少一个处理器111，例如CPU，至少一个通信总线112和存储器113；通信总线62用于实现这些组件之间的连接通信；存储器113可以是高速RAM存储器，也可以是非易失性存储器(non-volatile memory)，例如至少一个磁盘存储器。存储器113中存储一组程序代码，且处理器111用于调用存储器113中存储的程序代码，执行以下操作：
在接收到多个物联网设备发送的中继寻找信令时，根据所述终端的当前中继条件，判断是否响应所述多个物联网设备中的任一物联网设备发送的中继寻找信令；在判断结果为是时，向所述任一物联网设备发送中继寻找信令反馈，以使所述任一物联网设备将所述终端作为所述任一物联网设备的候选中继终端集中的候选中继终端，并使所述任一物联网设备确定是否将所述终端作为所述物联网设备的目标中继终端集中的目标中继终端，并在确定将所述终端作为所述目标中继终端集中的目标中继终端后，向所述终端发送中继申请信令；在接收到所述物联网中多个所述任一物联网设备发送的中继申请信令时，根据多个所述任一物联网设备中每个所述任一物联网设备的中继申请信令中的优先级信息，确定每个所述任一物联网设备的反馈优先级，以使多个所述任一物联网设备中的每个所述任一物联网设备确定是否通过所述终端转发向所在服务小区中的具有基站功能的设备发送的上行数据，其中，所述反馈优先级为向每个所述任一物联网设备发送中继申请信令反馈的优先级。
在上述技术方案中，优选地，所述优先级信息包括：所述终端在每个所述任一物联网设备的候选中继终端集中所处的候选优先级和/或每个所述任一物联网设备的业务优先级，且所述终端在所述目标中继终端集中所处的候选优先级与所述终端在所述候选中继终端集中所处的候选优先级相同；以及
在该技术方案中，所述处理器111根据多个所述任一物联网设备中每个所述任一物联网设备的中继申请信令中的优先级信息确定每个所述任一物联网设备的反馈优先级，具体包括：每个所述任一物联网设备的反馈优先级与每个所述任一物联网设备的候选优先级和/或业务优先级成正相关；且若所述终端在多个所述任一物联网设备中的第一物联网设备的目标中继终端集中所处的候选优先级，与所述终端在多个所述任一物联网设备中的第二物联网设备的目标中继终端集中所处的候选优先级相同，和/或所述第一物联网设备的业务优先级与所述第二物联网设备的业务优先级相同，则确定所述第一物联网设备与所述第二物联网设备的反馈优先级相同；以及在确定每个所述任一物联网设备的所述反馈优先级之后，按照每个所述任 一物联网设备的所述反馈优先级由高到低的顺序，依次向每个所述任一物联网设备发送中继申请信令反馈信息。
在上述技术方案中，优选地，所述处理器111在依次向每个所述任一物联网设备发送中继申请信令反馈信息之前，还执行以下操作：
按照所述反馈优先级由高到低的顺序，依次判断所述终端的当前可用时频资源是否小于多个所述任一物联网设备中的每个所述任一物联网设备的所需时频资源；若判断所述当前可用时频资源小于第一指定物联网设备的所需时频资源，则不向所述第一指定物联网设备发送所述中继申请信令反馈信息，并按照所述反馈优先级从高到低的顺序，依次判断所述当前可用时频资源是否大于或等于第二指定物联网设备的所需时频资源和/或所述终端当前已发送的所述中继申请信令反馈信息的总数目是否大于最大中继连接数目；在所述当前可用时频资源大于或等于所述第二指定物联网设备的所需时频资源和/或所述中继申请信令反馈信息的总数目小于所述最大中继连接数目时，向所述第二指定物联网设备发送所述中继申请信令反馈信息，否则，不向所述第二指定物联网设备发送所述中继申请信令反馈信息，其中，所述第二指定物联网设备的反馈优先级小于或等于所述第一物联网设备的反馈优先级，其中，所述第一指定物联网设备和所述第二指定物联网设备均为多个所述任一物联网设备中的物联网设备。
以上结合附图详细说明了本发明的技术方案，可以实现在选择中继终端时，能够综合物联网中的每个终端的信令处理能力和能耗情况、每个终端分别与物联网设备和基站的信道质量以及物联网设备的数据业务需求，为物联网设备选择最优中继终端，进而为物联网设备选择最优中继路径。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (20)

  1. 一种物联网中的数据传输方法，用于所述物联网中的物联网设备，其特征在于，包括：
    向所述物联网设备所在的服务小区中的多个终端发送中继寻找信令；接收来自至少一个终端发送的中继寻找信令反馈，并将所述至少一个终端作为所述物联网设备的候选中继终端集中的候选中继终端；
    根据接收到的所述候选中继终端集中每个候选中继终端的所述中继寻找信令反馈，确定所述物联网设备的目标中继终端集；
    向所述目标中继终端集中的目标中继终端发送中继申请信令，以申请通过所述目标中继终端转发向所述服务小区中的具有基站功能的设备发送的上行数据，其中，所述多个终端包括所述至少一个终端。
  2. 根据权利要求1所述的物联网中的数据传输方法，其特征在于，
    所述中继寻找信令反馈包括：所述物联网设备至每个所述候选中继终端的第一信道质量和/或每个所述候选中继终端至所述具有基站功能的设备的第二信道质量；以及
    根据接收到的所述候选中继终端集中每个候选中继终端的所述中继寻找信令反馈，确定所述物联网设备的目标中继终端集，具体包括：
    根据与所述每个所述候选中继终端相对应的所述第一信道质量和/或所述第二信道质量计算出与所述每个所述候选中继终端相对应的所述物联网设备至所述具有基站功能的设备的等效信道质量；
    根据与所述每个所述候选中继终端相对应的所述等效信道质量确定每个所述候选中继终端在所述候选中继终端集中所处的候选优先级；
    判断所述候选中继终端集中的任一候选中继终端的候选优先级是否高于预设候选优先级，在判断结果为是时，则将所述任一候选中继终端作为所述目标中继终端集中的目标中继终端，且所述目标中继终端在所述目标中继终端集中所处的候选优先级与所述目标中继终端在所述候选中继终端集中所处的候选优先级相同；否则，确定所述任一候选中继终端不是所述目标中继终端集中的目标中继终端。
  3. 根据权利要求2所述的物联网中的数据传输方法，其特征在于，
    所述中继申请信令包括：所述任一目标中继终端在所述目标中继终端集中所处的候选优先级和/或所述物联网设备的业务优先级；以及
    在向所述目标中继终端集中的所述目标中继终端发送所述中继申请信令后，若接收到所述目标中继终端集中的任一目标中继终端发送的中继申请信令反馈信息，则判断所述任一目标中继终端发送的所述中继申请信令反馈信息是否为接收到的至少一个中继申请信令反馈信息中最先接收的中继申请信令反馈信息，并在判断结果为是时，将所述任一目标中继终端作为所述物联网设备的最终中继终端，以通过所述最终中继终端转发向所述具有基站功能的设备发送的上行数据；以及
    在向所述目标中继终端发送所述中继申请信令后，若在预定时间内未接收到所述目标中继终端集中的任一目标中继终端发送的中继申请信令反馈信息，则重新向所述多个终端发送中继寻找信令。
  4. 一种物联网中的数据传输系统，用于所述物联网中的物联网设备，其特征在于，包括：
    第一发送单元，向所述物联网设备所在的服务小区中的多个终端发送中继寻找信令；
    接收单元，接收来自至少一个终端发送的中继寻找信令反馈，并将所述至少一个终端作为所述物联网设备的候选中继终端集中的候选中继终端；
    确定单元，根据接收到的所述候选中继终端集中每个候选中继终端的所述中继寻找信令反馈，确定所述物联网设备的目标中继终端集；
    第二发送单元，向所述目标中继终端集中的目标中继终端发送中继申请信令，以申请通过所述目标中继终端转发向所述服务小区中的具有基站功能的设备发送的上行数据，其中，所述多个终端包括所述至少一个终端。
  5. 根据权利要求4所述的物联网中的数据传输系统，其特征在于，
    所述中继寻找信令反馈包括：所述物联网设备至每个所述候选中继终端的第一信道质量和/或每个所述候选中继终端至所述具有基站功能的设备的第二信道质量；以及
    所述确定单元具体用于：
    根据与所述每个所述候选中继终端相对应的所述第一信道质量和/或所述第二信道质量计算出与所述每个所述候选中继终端相对应的所述物联网设备至所述具有基站功能的设备的等效信道质量；
    根据与所述每个所述候选中继终端相对应的所述等效信道质量确定每个所述候选中继终端在所述候选中继终端集中所处的候选优先级；
    判断所述候选中继终端集中的任一候选中继终端的候选优先级是否高于预设候选优先级，在判断结果为是时，则将所述任一候选中继终端作为所述目标中继终端集中的目标中继终端，且所述目标中继终端在所述目标中继终端集中所处的候选优先级与所述目标中继终端在所述候选中继终端集中所处的候选优先级相同；否则，确定所述任一候选中继终端不是所述目标中继终端集中的目标中继终端。
  6. 根据权利要求5所述的物联网中的数据传输系统，其特征在于，
    所述中继申请信令包括：所述任一目标中继终端在所述目标中继终端集中所处的候选优先级和/或所述物联网设备的业务优先级；以及
    判断单元，在向所述目标中继终端集中的每个所述目标中继终端发送所述中继申请信令后，若接收到所述目标中继终端集中的任一目标中继终端发送的中继申请信令反馈信息，则判断所述任一目标中继终端发送的所述中继申请信令反馈信息是否为接收到的至少一个中继申请信令反馈信息中最先接收的中继申请信令反馈信息，并在判断结果为是时，将所述任一目标中继终端作为所述物联网设备的最终中继终端，以通过所述最终中继终端转发向所述具有基站功能的设备发送的上行数据；以及
    所述第一发送单元还用于：
    在向所述目标中继终端发送所述中继申请信令后，若在预定时间内未接收到所述目标中继终端集中的任一目标中继终端发送的中继申请信令反馈信息，则重新向所述多个终端发送中继寻找信令。
  7. 一种物联网设备，其特征在于，包括处理器和存储器，其中，所述存储器中存储一组程序代码，且所述处理器用于调用所述存储器中存储的程序代码，用于执行以下操作：
    向物联网设备所在的服务小区中的多个终端发送中继寻找信令；接收来自至少一个终端发送的中继寻找信令反馈，并将所述至少一个终端作为所述物联网设备的候选中继终端集中的候选中继终端；
    根据接收到的所述候选中继终端集中每个候选中继终端的所述中继寻找信令反馈，确定所述物联网设备的目标中继终端集；
    向所述目标中继终端集中的目标中继终端发送中继申请信令，以申请通过所述目标中继终端转发向所述服务小区中的具有基站功能的设备发送的上行数据，其中，所述多个终端包括所述至少一个终端。
  8. 根据权利要求1所述物联网设备，其特征在于，
    所述中继寻找信令反馈包括：所述物联网设备至每个所述候选中继终端的第一信道质量和/或每个所述候选中继终端至所述具有基站功能的设备的第二信道质量；以及
    所述处理器根据接收到的所述候选中继终端集中每个候选中继终端的所述中继寻找信令反馈，确定所述物联网设备的目标中继终端集，具体包括：
    根据与所述每个所述候选中继终端相对应的所述第一信道质量和/或所述第二信道质量计算出与所述每个所述候选中继终端相对应的所述物联网设备至所述具有基站功能的设备的等效信道质量；
    根据与所述每个所述候选中继终端相对应的所述等效信道质量确定每个所述候选中继终端在所述候选中继终端集中所处的候选优先级；
    判断所述候选中继终端集中的任一候选中继终端的候选优先级是否高于预设候选优先级，在判断结果为是时，则将所述任一候选中继终端作为所述目标中继终端集中的目标中继终端，且所述目标中继终端在所述目标中继终端集中所处的候选优先级与所述目标中继终端在所述候选中继终端集中所处的候选优先级相同；否则，确定所述任一候选中继终端不是所述目标中继终端集中的目标中继终端。
  9. 根据权利要求8所述物联网设备，其特征在于，
    所述中继申请信令包括：所述任一目标中继终端在所述目标中继终端集中所处的候选优先级和/或所述物联网设备的业务优先级；以及
    所述处理器在向所述目标中继终端集中的所述目标中继终端发送所述中继申请信令后，若接收到所述目标中继终端集中的任一目标中继终端发送的中继申请信令反馈信息，则判断所述任一目标中继终端发送的所述中继申请信令反馈信息是否为接收到的至少一个中继申请信令反馈信息中最先接收的中继申请信令反馈信息，并在判断结果为是时，将所述任一目标中继终端作为所述物联网设备的最终中继终端，以通过所述最终中继终端转发向所述具有基站功能的设备发送的上行数据；以及
    所述处理器在向所述目标中继终端发送所述中继申请信令后，若在预定时间内未接收到所述目标中继终端集中的任一目标中继终端发送的中继申请信令反馈信息，则重新向所述多个终端发送中继寻找信令。
  10. 一种物联网中的数据传输方法，用于所述物联网中的终端，其特征在于，所述终端与权利要求7中的物联网设备相连接，以及所述数据传输方法包括：
    在接收到多个物联网设备发送的中继寻找信令时，根据所述终端的当前中继条件，判断是否响应所述多个物联网设备中的任一物联网设备发送的中继寻找信令；
    在判断结果为是时，向所述任一物联网设备发送中继寻找信令反馈，以使所述任一物联网设备将所述终端作为所述任一物联网设备的候选中继终端集中的候选中继终端，并使所述任一物联网设备确定是否将所述终端作为所述物联网设备的目标中继终端集中的目标中继终端，并在确定将所述终端作为所述目标中继终端集中的目标中继终端后，向所述终端发送中继申请信令；
    在接收到所述物联网中多个所述任一物联网设备发送的中继申请信令时，根据多个所述任一物联网设备中每个所述任一物联网设备的中继申请信令中的优先级信息，确定每个所述任一物联网设备的反馈优先级，以使多个所述任一物联网设备中的每个所述任一物联网设备确定是否通过所述终端转发向所在服务小区中的具有基站功能的设备发送的上行数据，其中，所述反馈优先级为向每个所述任一物联网设备发送中继申请信令反馈的优先级。
  11. 根据权利要求10所述的物联网中的数据传输方法，其特征在于，
    所述优先级信息包括：所述终端在每个所述任一物联网设备的候选中继终端集中所处的候选优先级和/或每个所述任一物联网设备的业务优先级，且所述终端在所述目标中继终端集中所处的候选优先级与所述终端在所述候选中继终端集中所处的候选优先级相同；以及
    所述根据多个所述任一物联网设备中每个所述任一物联网设备的中继申请信令中的优先级信息确定每个所述任一物联网设备的反馈优先级，具体包括：
    每个所述任一物联网设备的反馈优先级与每个所述任一物联网设备的候选优先级和/或业务优先级成正相关；且
    若所述终端在多个所述任一物联网设备中的第一物联网设备的目标中继终端集中所处的候选优先级，与所述终端在多个所述任一物联网设备中的第二物联网设备的目标中继终端集中所处的候选优先级相同，和/或所述第一物联网设备的业务优先级与所述第二物联网设备的业务优先级相同，则确定所述第一物联网设备与所述第二物联网设备的反馈优先级相同；以及
    在确定每个所述任一物联网设备的所述反馈优先级之后，按照每个所述任一物联网设备的所述反馈优先级由高到低的顺序，依次向每个所述任一物联网设备发送中继申请信令反馈信息。
  12. 根据权利要求11所述的物联网中的数据传输方法，其特征在于，
    在依次向每个所述任一物联网设备发送中继申请信令反馈信息之前，还包括：
    按照所述反馈优先级由高到低的顺序，依次判断所述终端的当前可用时频资源是否小于多个所述任一物联网设备中的每个所述任一物联网设备的所需时频资源；
    若判断所述当前可用时频资源小于第一指定物联网设备的所需时频资源，则不向所述第一指定物联网设备发送所述中继申请信令反馈信息，并按照所述反馈优先级从高到低的顺序，依次判断所述当前可用时频资源是否大于或等于第二指定物联网设备的所需时频资源和/或所述终端当前已 发送的所述中继申请信令反馈信息的总数目是否大于最大中继连接数目；
    在所述当前可用时频资源大于或等于所述第二指定物联网设备的所需时频资源和/或所述中继申请信令反馈信息的总数目小于所述最大中继连接数目时，向所述第二指定物联网设备发送所述中继申请信令反馈信息，否则，不向所述第二指定物联网设备发送所述中继申请信令反馈信息，其中，所述第二指定物联网设备的反馈优先级小于或等于所述第一物联网设备的反馈优先级，其中，所述第一指定物联网设备和所述第二指定物联网设备均为多个所述任一物联网设备中的物联网设备。
  13. 根据权利要求10至12中任一项所述的物联网中的数据传输方法，其特征在于，
    所述当前中继条件包括：所述终端是否支持为所述任一物联网设备转发向所在当前小区中的具有基站功能的设备发送的上行数据、所述终端是否开启转发所述上行数据的服务、所述终端是否空闲、所述终端的电量是否高于预设电量、所述终端的当前时频资源是否高于转发所述上行数据所需的时频资源、所述终端支持的最大中继连接数目、所述任一物联网设备至所述终端的第一信道质量、所述终端至所述具有基站功能的设备的第二信道质量、所述终端的移动性中的至少一个条件。
  14. 一种物联网中的数据传输系统，用于所述物联网中的终端，其特征在于，所述终端与权利要求7中的物联网设备相连接，以及所述数据传输系统包括：
    判断单元，在接收到多个物联网设备发送的中继寻找信令时，根据所述终端的当前中继条件，判断是否响应所述多个物联网设备中的任一物联网设备发送的中继寻找信令；
    发送单元，在判断结果为是时，向所述任一物联网设备发送中继寻找信令反馈，以使所述任一物联网设备将所述终端作为所述任一物联网设备的候选中继终端集中的候选中继终端，并使所述任一物联网设备确定是否将所述终端作为所述物联网设备的目标中继终端集中的目标中继终端，并在确定将所述终端作为所述目标中继终端集中的目标中继终端后，向所述终端发送中继申请信令；
    确定单元，在接收到所述物联网中多个所述任一物联网设备发送的中继申请信令时，根据多个所述任一物联网设备中每个所述任一物联网设备的中继申请信令中的优先级信息，确定每个所述任一物联网设备的反馈优先级，以使多个所述任一物联网设备中的每个所述任一物联网设备确定是否通过所述终端转发向所在服务小区中的具有基站功能的设备发送的上行数据，其中，所述反馈优先级为向每个所述任一物联网设备发送中继申请信令反馈的优先级。
  15. 根据权利要求14所述的物联网中的数据传输系统，其特征在于，
    所述优先级信息包括：所述终端在每个所述任一物联网设备的候选中继终端集中所处的候选优先级和/或每个所述任一物联网设备的业务优先级，且所述终端在所述目标中继终端集中所处的候选优先级与所述终端在所述候选中继终端集中所处的候选优先级相同；以及
    每个所述任一物联网设备的反馈优先级与每个所述任一物联网设备的候选优先级和/或业务优先级成正相关；且
    若所述终端在多个所述任一物联网设备中的第一物联网设备的目标中继终端集中所处的候选优先级，与所述终端在多个所述任一物联网设备中的第二物联网设备的目标中继终端集中所处的候选优先级相同，和/或所述第一物联网设备的业务优先级与所述第二物联网设备的业务优先级相同，则确定所述第一物联网设备与所述第二物联网设备的反馈优先级相同；以及
    所述发送单元还用于：
    在确定每个所述任一物联网设备的所述反馈优先级之后，按照每个所述任一物联网设备的所述反馈优先级由高到低的顺序，依次向每个所述任一物联网设备发送中继申请信令反馈信息。
  16. 根据权利要求15所述的物联网中的数据传输系统，其特征在于，
    所述判断单元还用于：在依次向每个所述任一物联网设备发送中继申请信令反馈信息之前，按照所述反馈优先级由高到低的顺序，依次判断所述终端的当前可用时频资源是否小于多个所述任一物联网设备中的每个所述任一物联网设备的所需时频资源；
    所述判断单元还用于：若判断所述当前可用时频资源小于第一指定物联网设备的所需时频资源，则不向所述第一指定物联网设备发送所述中继申请信令反馈信息，并按照所述反馈优先级从高到低的顺序，依次判断所述当前可用时频资源是否大于或等于第二指定物联网设备的所需时频资源和/或所述终端当前已发送的所述中继申请信令反馈信息的总数目是否大于最大中继连接数目；
    所述发送单元还用于：
    在所述当前可用时频资源大于或等于所述第二指定物联网设备的所需时频资源和/或所述中继申请信令反馈信息的总数目小于所述最大中继连接数目时，向所述第二指定物联网设备发送所述中继申请信令反馈信息，否则，不向所述第二指定物联网设备发送所述中继申请信令反馈信息，其中，所述第二指定物联网设备的反馈优先级小于或等于所述第一物联网设备的反馈优先级，其中，所述第一指定物联网设备和所述第二指定物联网设备均为多个所述任一物联网设备中的物联网设备。
  17. 一种终端，其特征在于，所述终端与权利要求7中的物联网设备相连接，所述终端包括处理器和存储器，其中，所述存储器中存储一组程序代码，且所述处理器用于调用所述存储器中存储的程序代码，用于执行以下操作：
    在接收到多个物联网设备发送的中继寻找信令时，根据所述终端的当前中继条件，判断是否响应所述多个物联网设备中的任一物联网设备发送的中继寻找信令；
    在判断结果为是时，向所述任一物联网设备发送中继寻找信令反馈，以使所述任一物联网设备将所述终端作为所述任一物联网设备的候选中继终端集中的候选中继终端，并使所述任一物联网设备确定是否将所述终端作为所述物联网设备的目标中继终端集中的目标中继终端，并在确定将所述终端作为所述目标中继终端集中的目标中继终端后，向所述终端发送中继申请信令；
    在接收到所述物联网中多个所述任一物联网设备发送的中继申请信令时，根据多个所述任一物联网设备中每个所述任一物联网设备的中继申请 信令中的优先级信息，确定每个所述任一物联网设备的反馈优先级，以使多个所述任一物联网设备中的每个所述任一物联网设备确定是否通过所述终端转发向所在服务小区中的具有基站功能的设备发送的上行数据，其中，所述反馈优先级为向每个所述任一物联网设备发送中继申请信令反馈的优先级。
  18. 根据权利要求17所述的终端，其特征在于，
    所述优先级信息包括：所述终端在每个所述任一物联网设备的候选中继终端集中所处的候选优先级和/或每个所述任一物联网设备的业务优先级，且所述终端在所述目标中继终端集中所处的候选优先级与所述终端在所述候选中继终端集中所处的候选优先级相同；以及
    所述处理器根据多个所述任一物联网设备中每个所述任一物联网设备的中继申请信令中的优先级信息确定每个所述任一物联网设备的反馈优先级，具体包括：
    每个所述任一物联网设备的反馈优先级与每个所述任一物联网设备的候选优先级和/或业务优先级成正相关；且
    若所述终端在多个所述任一物联网设备中的第一物联网设备的目标中继终端集中所处的候选优先级，与所述终端在多个所述任一物联网设备中的第二物联网设备的目标中继终端集中所处的候选优先级相同，和/或所述第一物联网设备的业务优先级与所述第二物联网设备的业务优先级相同，则确定所述第一物联网设备与所述第二物联网设备的反馈优先级相同；以及
    在确定每个所述任一物联网设备的所述反馈优先级之后，按照每个所述任一物联网设备的所述反馈优先级由高到低的顺序，依次向每个所述任一物联网设备发送中继申请信令反馈信息。
  19. 根据权利要求18所述的终端，其特征在于，
    所述处理器在依次向每个所述任一物联网设备发送中继申请信令反馈信息之前，还执行以下操作：
    按照所述反馈优先级由高到低的顺序，依次判断所述终端的当前可用时频资源是否小于多个所述任一物联网设备中的每个所述任一物联网设备 的所需时频资源；
    若判断所述当前可用时频资源小于第一指定物联网设备的所需时频资源，则不向所述第一指定物联网设备发送所述中继申请信令反馈信息，并按照所述反馈优先级从高到低的顺序，依次判断所述当前可用时频资源是否大于或等于第二指定物联网设备的所需时频资源和/或所述终端当前已发送的所述中继申请信令反馈信息的总数目是否大于最大中继连接数目；
    在所述当前可用时频资源大于或等于所述第二指定物联网设备的所需时频资源和/或所述中继申请信令反馈信息的总数目小于所述最大中继连接数目时，向所述第二指定物联网设备发送所述中继申请信令反馈信息，否则，不向所述第二指定物联网设备发送所述中继申请信令反馈信息，其中，所述第二指定物联网设备的反馈优先级小于或等于所述第一物联网设备的反馈优先级，其中，所述第一指定物联网设备和所述第二指定物联网设备均为多个所述任一物联网设备中的物联网设备。
  20. 一种物联网系统，其特征在于，包括：
    具有基站功能的设备；
    如权利要求7所述的物联网设备；和
    如权利要求17所述的终端。
PCT/CN2015/082867 2015-03-13 2015-06-30 物联网中的数据传输方法、系统、物联网设备、终端 Ceased WO2016145751A1 (zh)

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