WO2018027799A1 - 信息传输方法、装置以及通信系统 - Google Patents

信息传输方法、装置以及通信系统 Download PDF

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Publication number
WO2018027799A1
WO2018027799A1 PCT/CN2016/094630 CN2016094630W WO2018027799A1 WO 2018027799 A1 WO2018027799 A1 WO 2018027799A1 CN 2016094630 W CN2016094630 W CN 2016094630W WO 2018027799 A1 WO2018027799 A1 WO 2018027799A1
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WO
WIPO (PCT)
Prior art keywords
link
air interface
user equipment
data
information transmission
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2016/094630
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English (en)
French (fr)
Inventor
吴联海
周华
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Fujitsu Ltd
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Fujitsu Ltd
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Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to CN201680087586.7A priority Critical patent/CN109479232B/zh
Priority to PCT/CN2016/094630 priority patent/WO2018027799A1/zh
Publication of WO2018027799A1 publication Critical patent/WO2018027799A1/zh
Priority to US16/253,064 priority patent/US11218929B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/03—Reselecting a link using a direct mode connection
    • H04W36/033—Reselecting a link using a direct mode connection in pre-organised networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/44—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/46—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for vehicle-to-vehicle communication [V2V]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
    • H04W40/248—Connectivity information update
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
    • H04W40/28—Connectivity information management, e.g. connectivity discovery or connectivity update for reactive routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/305—Handover due to radio link failure

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to an information transmission method, apparatus, and communication system.
  • V2X Vehicle-to-everything
  • FIG. 1 is a schematic diagram of a typical application scenario of vehicle networking communication.
  • the vehicle networking communication may include several typical application scenarios: vehicle-to-vehicle communication (V2V, Vehicle-to-Vehicle), which is applied to fast moving.
  • V2V vehicle-to-vehicle communication
  • Vehicle Vehicle-to-Vehicle
  • V2P Vehicle-to-Pedestrian
  • P2V Pedestrian-to-Vehicle
  • V2I Vehicle-to-Infrastructure
  • the information that needs to be transmitted may be referred to as transmission information (or simply information), and the information may include V2X information, P2V information, and the like.
  • the user equipment supporting the P2V application can send application layer information including information such as location.
  • the size of the P2V information is variable, so the physical resource size carrying the P2V information should also be variable.
  • a cellular link also referred to as an air interface link
  • an edge link can be configured for the user equipment to transmit the P2V information.
  • two user equipments can communicate through a cellular link.
  • information from the source user equipment will be transmitted to the source base station through the air interface, and the source base station sends the information to the core network.
  • the core network finds the target base station according to the IP address, transmits the information to the target base station, and the target base station transmits the information to the target user equipment.
  • two user devices can communicate via a side link.
  • E-UTRAN Evolved Universal Terrestrial Radio Access Network
  • the edge link communication mode means that the data packet does not need to pass through the core network and the base station, and the user equipment UE1 and UE2 can directly establish a communication link to perform communication.
  • Side link communication can also be referred to as device to device (D2D) communication.
  • the edge link discovery process is generally performed before the sidelink communication is performed. For example, before UE1 sends information to UE2 through side-link communication, it is first found whether UE2 is nearby.
  • FIG. 2 is a schematic diagram of side link communication, showing two cases in which UEs (UE1 and UE2) under the coverage of a base station (eg, eNB) perform edge link discovery or establish side link communication.
  • 3 is another schematic diagram of side link communication, showing a situation in which one UE (UE1) performs edge link discovery or establishes side link communication when the base station (UE1) is under the coverage of the base station and the other UE (UE2) is not under the coverage of the base station.
  • UE4 is another schematic diagram of side link communication, showing two cases in which UEs (UE1 and UE2) that are not covered by the base station perform edge link discovery or establish side link communication.
  • the user equipment may be configured with a resource pool before the user equipment performs side link transmission.
  • the SA (Scheduling Assignment) pool in the resource pool can be used to transmit a Physical Side Link Control Channel (PSCCH).
  • PSCCH Physical Side Link Control Channel
  • the PSCCH carries the Sidelink Control Information (SCI) format 0 information.
  • SCI format 0 information is repeatedly transmitted twice in two different subframes in the SA resource pool.
  • the base station can configure the user equipment to transmit information using the air interface link or the side link.
  • the application layer of the user equipment chooses to use the air interface link to transmit information and notify the access (AS) layer of the user equipment, if the air interface link cannot transmit data normally (for example, radio link failure (RLF) is in the air interface. This information cannot be successfully transmitted on the link.
  • RLF radio link failure
  • Embodiments of the present invention provide an information transmission method, apparatus, and communication system. Data information can be successfully transmitted on other links even if the air link link cannot transmit data normally.
  • an information transmission method is provided, which is applied to a user equipment that can perform data transmission with other user equipments by using an air interface link and an edge link, where the information transmission method includes:
  • the user equipment uses the side link to perform data transmission if the air interface link cannot normally transmit data.
  • an information transmission apparatus configured in a user equipment capable of performing data transmission using an air interface link and an edge link, where the information transmission apparatus includes:
  • a data transmission unit that uses the side link for data transmission if the air interface link cannot normally transmit data.
  • a communication system including a first user equipment and a second user equipment capable of performing data transmission using an air interface link and an edge link, the communication system further comprising:
  • a base station configured to send, to the first user equipment, indication information that the first user equipment is capable of using the side link if a radio link failure occurs on the air interface link;
  • the first user equipment uses the side link to perform data transmission with the second user equipment if the air interface link cannot normally transmit data.
  • the base station indicates that the user equipment can use the edge link when the air interface link cannot normally transmit data
  • the user equipment uses the side link and other when the air interface link cannot normally transmit data.
  • User equipment performs data transmission. Thereby, data information can be successfully transmitted on other links even in the case where the air interface cannot properly transmit data.
  • FIG. 1 is a schematic diagram of a typical application scenario of car network communication
  • FIG. 3 is another schematic diagram of side link communication
  • FIG. 5 is a schematic diagram of an information transmission method according to Embodiment 1 of the present invention.
  • FIG. 6 is another schematic diagram of an information transmission method according to Embodiment 1 of the present invention.
  • FIG. 7 is another schematic diagram of an information transmission method according to Embodiment 1 of the present invention.
  • Figure 8 is a schematic diagram of an information transmission apparatus according to Embodiment 2 of the present invention.
  • FIG. 9 is another schematic diagram of an information transmission apparatus according to Embodiment 2 of the present invention.
  • Figure 10 is a schematic diagram of a communication system according to Embodiment 3 of the present invention.
  • FIG. 11 is a schematic diagram of a user equipment according to Embodiment 3 of the present invention.
  • Figure 12 is a schematic diagram of a base station according to Embodiment 3 of the present invention.
  • a base station may be referred to as an access point, a broadcast transmitter, a Node B, an evolved Node B (eNB), etc., and may include some or all of their functions.
  • the term “base station” will be used herein. Each base station provides communication coverage for a particular geographic area.
  • the term “cell” can refer to a base station and/or its coverage area, depending on the context in which the term is used.
  • a mobile station or device may be referred to as a "User Equipment” (UE).
  • UE User Equipment
  • a UE may be fixed or mobile and may also be referred to as a mobile station, terminal, access terminal, subscriber unit, station, and the like.
  • the UE can be a cellular telephone, a personal digital assistant (PDA), a wireless modem, a wireless communication device, Handheld devices, laptop computers, cordless phones, etc.
  • PDA personal digital assistant
  • FIG. 5 is a schematic diagram of an information transmission method according to an embodiment of the present invention. As shown in FIG. 5, the information transmission method includes:
  • Step 501 The user equipment receives indication information that is sent by the base station to indicate that the user equipment can use the side link if the air interface link cannot normally transmit data.
  • Step 502 The user equipment uses the side link to perform data transmission with the other user equipment if the air interface link cannot normally transmit data.
  • a certain user equipment may perform V2X information transmission with another user equipment.
  • the V2X information is, for example, information transmitted between devices that perform vehicle networking communication, and may be, for example, V2V information, V2P information, V2I information, V2N (Vehicle-to-Network) information, I2V information, P2V. Information and the like; however, the present invention is not limited thereto, and only P2V information will be described below as an example.
  • the base station may be a macro base station (for example, an eNB), and a macro cell (for example, a macro cell) generated by the macro base station may serve the user equipment; or the base station may also be a micro base station, where the base station may generate A micro cell (such as a Pico cell or a small cell) can serve the user equipment.
  • a macro base station for example, an eNB
  • a macro cell for example, a macro cell generated by the macro base station may serve the user equipment
  • the base station may also be a micro base station, where the base station may generate A micro cell (such as a Pico cell or a small cell) can serve the user equipment.
  • a micro cell such as a Pico cell or a small cell
  • the case that the air interface link cannot normally transmit data may include: the radio link failure occurs on the air interface link; or the air interface link performs the connection reestablishment process; or the air interface link performs the handover process.
  • the present invention is not limited thereto, and may be another case where the air interface link cannot normally transmit data.
  • the following takes an example of a radio link failure occurring on an air interface link as an example.
  • the user equipment may also receive resources configured by the base station for the edge link.
  • the base station indicates that the user equipment can use the side link in the case that the radio link fails on the air interface link, and configure the corresponding resource for the side link; the user equipment uses the side link in the case that the radio link fails in the air interface link.
  • Data transfer Thereby, data information can be successfully transmitted even in the case where a radio link failure occurs on the air interface link.
  • the user equipment uses the side link to perform data transmission in the case that the radio link fails in the air interface link, and may include: information that the access layer of the user equipment fails the radio link of the air interface link. Notifying the application layer of the user equipment; the application layer of the user equipment selects the edge chain when data needs to be transmitted Transmitting the data; and the access layer of the user equipment transmits the data using the edge link according to the selection of the application layer.
  • the application layer of the user equipment may be, for example, an application running independently in the user equipment, or a functional entity.
  • the access layer of the user equipment may be an entity that communicates with other devices, such as a Media Access Control (MAC) layer, a Packet Data Convergence Protocol (PDCP) layer, and the like.
  • MAC Media Access Control
  • PDCP Packet Data Convergence Protocol
  • the present invention is not limited thereto, and the application layer and the access layer of the present invention should be broadly understood and should not be limited to one or some of the protocol layers.
  • FIG. 6 is another schematic diagram of an information transmission method according to an embodiment of the present invention, which is described from a base station side and a user equipment side. As shown in FIG. 6, the information transmission method includes:
  • Step 601 The base station configures indication information and edge link resources for the user equipment.
  • the base station may configure the following information for the user equipment: when transmitting the information, if the application layer of the user equipment chooses to use the cellular link (ie, the air interface link) for information transmission, and the cellular link is in the wireless In the link failure state, the user equipment can transmit the information using the side link.
  • the application layer of the user equipment chooses to use the cellular link (ie, the air interface link) for information transmission, and the cellular link is in the wireless In the link failure state, the user equipment can transmit the information using the side link.
  • the base station may also configure related edge link resources to the user equipment by using broadcast signaling.
  • Step 602 The user equipment sends request information to the base station.
  • the user equipment may send request information including the interest service to the base station; for example, the user equipment is interested in transmitting P2V information;
  • Step 603 The base station configures the user equipment to use the air interface link and the side link to transmit information.
  • the base station allows both the air interface link and the side link to be used by the user equipment.
  • the base station can also configure corresponding resources.
  • Step 604 The access layer of the user equipment notifies the application layer to use the air interface link and the side link to transmit information.
  • the application layer when information needs to be transmitted, the application layer makes a selection and informs the access layer.
  • Step 605 The access layer of the user equipment notifies the application layer of the user equipment of the failure of the radio link failure of the air interface link.
  • the access layer of the user equipment may notify the application layer through the inter-layer interaction, so that the application layer avoids selecting the air interface link (ie, the cellular transmission link).
  • the radio link failure of the air interface link includes: timer T310 or T311 is running.
  • T310 or T311 refer to the existing TS36.331 section 7.3, and Table 1 below shows the T310 related content.
  • Table 2 below shows the contents related to T311.
  • the foregoing is only an example of whether the timer T310 or the T311 is running, and the radio link failure occurs on the air interface link.
  • the present invention is not limited thereto, and the air interface link may be determined by other methods. Whether a wireless link failure has occurred.
  • Step 606 The application layer of the user equipment selects an edge link to transmit the data when data needs to be transmitted.
  • the application layer when there is information to be transmitted, the application layer does not select the cellular transmission that is undergoing the link failure, thereby selecting the side link for transmission.
  • the application layer informs the access layer of the information to be transmitted and the selected link, and sends it on the side link.
  • Step 607 The access layer of the user equipment uses the side link to transmit data according to the selection of the application layer.
  • the user equipment uses the edge chain in the event that the air link fails in the air interface link.
  • the data transmission may further include: the application layer of the user equipment selects the air interface link or the edge link to transmit data when the data needs to be transmitted; and the access layer of the user equipment fails the radio link on the air interface link and the application layer selects In the case of an air interface link, data is transmitted using the side link.
  • FIG. 7 is another schematic diagram of an information transmission method according to an embodiment of the present invention, which is described from a base station side and a user equipment side. As shown in FIG. 7, the information transmission method includes:
  • Step 701 The base station configures indication information and side link resources for the user equipment.
  • the base station may configure the following information for the user equipment: when transmitting the information, if the application layer of the user equipment chooses to use the cellular link for information transmission, and the cellular link is in a radio link failure state, The user equipment can transmit this information using the side link.
  • the base station may also configure related edge link resources to the user equipment by using broadcast signaling.
  • Step 702 The user equipment sends request information to the base station.
  • the user equipment may send request information including the interest service to the base station; for example, the user equipment is interested in transmitting P2V information;
  • Step 703 The base station configures the user equipment to use the air interface link and the side link to transmit information.
  • the base station allows both the air interface link and the side link to be used by the user equipment.
  • the base station can also configure corresponding resources.
  • Step 704 The access layer of the user equipment notifies the application layer to use the air interface link and the side link to transmit information.
  • the application layer when information needs to be transmitted, the application layer makes a selection and informs the access layer.
  • Step 705 The application layer of the user equipment selects an air interface link or an edge link to transmit data when data needs to be transmitted.
  • the access layer of the user equipment when a radio link failure occurs on the air interface link (for example, when the clock T310 or T311 is running), the access layer of the user equipment does not notify the application layer of the information. The application layer still believes that both cellular links and side links can be used normally.
  • the application layer forwards the information to be transmitted to the access layer according to the information it has mastered, and simultaneously informs the access layer of the transmission link selected by the access layer.
  • Step 706 In the case that the radio link fails on the air interface link and the application layer selects the air interface link, the access layer of the user equipment uses the side link to transmit data.
  • the access layer of the user equipment can still transmit data using the edge link selected by the application layer.
  • the access layer of the user equipment when the access layer of the user equipment is informed by the application layer that the information is transmitted using the cellular link, and the bee is found When the bear link is experiencing a radio link failure (eg, clock T310 or T311 is running), the access layer of the user equipment uses edge link resources for information transmission without using the air interface link selected by the application layer.
  • a radio link failure eg, clock T310 or T311 is running
  • FIGS. 6 and 7 are only illustrative of the embodiments of the present invention, but the invention is not limited thereto.
  • the order of execution between the various steps can be appropriately adjusted, and other steps can be added or some of the steps can be reduced.
  • Those skilled in the art can appropriately modify the above based on the above contents, and are not limited to the description of the above drawings.
  • the case that the air interface link cannot normally transmit data may further include: an air interface link performing a connection re-establishment process; or an air interface link performing a handover process.
  • the processing procedure is similar to the case of FIGS. 6 and 7, and only the judgment of the above process will be further described below.
  • connection re-establishment process of the air interface link may include, for example, the timer T301 is running.
  • the process of switching the air interface link may include, for example, the timer T304 is running.
  • the present invention is not limited thereto. For example, if any one or more of T301, T304, T310, and T311 are running, it can be considered that a situation in which the air interface link cannot normally transmit data occurs.
  • T301 or T304 For the specific content of T301 or T304, reference may be made to the existing TS36.331 section 7.3, and Table 3 below shows the contents related to T301 and T304.
  • the air interface link is used for the connection re-establishment process or the handover process.
  • the present invention is not limited thereto, and may be judged by other means. Whether the air interface link cannot transmit data normally.
  • the base station indicates that the user equipment can use the edge link when the air interface link cannot transmit data normally, and the user equipment uses the side link to perform other user equipments when the air interface link cannot normally transmit data. data transmission. Thereby, data information can be successfully transmitted on other links even in the case where the air interface cannot normally transmit data.
  • the embodiment of the invention provides an information transmission device, which is configured in a user equipment capable of data transmission using an air interface link and an edge link.
  • the embodiment of the present invention corresponds to the information transmission method of Embodiment 1, and the same content is not described again.
  • FIG. 8 is a schematic diagram of an information transmission apparatus according to an embodiment of the present invention. As shown in FIG. 8, the information transmission apparatus 800 includes:
  • the data transmission unit 802 uses the side link to perform data transmission with other user equipments in the case that the air interface cannot properly transmit data.
  • the case that the air interface link cannot normally transmit data may include: the air interface link is wireless.
  • the link fails; or the air interface link performs the connection re-establishment process; or the air interface link performs the handover process; however, the present invention is not limited thereto.
  • the information transmission apparatus 900 includes an indication receiving unit 801 and a data transmission unit 802, as described above.
  • the information transmission device 900 may further include:
  • the resource receiving unit 901 receives the resource that the base station configures for the edge link.
  • the data transmission unit 802 may include an access layer unit 902 and an application layer unit 903.
  • the access layer unit 902 notifies the application layer unit 903 that the air interface link cannot normally transmit data; the application layer unit 903 selects the side link to transmit the data when data needs to be transmitted; And, the access layer unit 902 transmits data using the side link according to the selection of the application layer unit 903.
  • the application layer unit 903 selects the air interface link or the side link to transmit the data when data needs to be transmitted; and the access layer unit 902 cannot transmit data normally on the air interface link. And in the case that the application layer unit selects the air interface link, the edge link is used to transmit data.
  • the case that the air interface link cannot normally transmit data may include: the timer T310 or T311 is running; or the timer T301 is running; or the timer T304 is running.
  • the base station indicates that the user equipment can use the edge link when the air interface link cannot transmit data normally, and the user equipment uses the side link to perform other user equipments when the air interface link cannot normally transmit data. data transmission. Thereby, data information can be successfully transmitted on other links even in the case where the air interface cannot normally transmit data.
  • the embodiment of the present invention further provides a communication system, and the same content as Embodiment 1 or 2 is not described herein.
  • the communication system 1000 can include a base station 1001 and a first user equipment 1002 and a second user equipment 1003.
  • the first user equipment 1002 may be configured with the information transmission device 800 or 900 as described in Embodiment 2.
  • the embodiment of the present invention further provides a user equipment, which is configured with the information transmission device 800 or 900 as described in Embodiment 2.
  • FIG. 11 is a schematic diagram of a user equipment according to an embodiment of the present invention.
  • the user device 1100 can include a central processing unit 100 and a memory 140; the memory 140 is coupled to the central processing unit 100.
  • the figure is exemplary; other types of structures may be used in addition to or in place of the structure to implement telecommunications functions or other functions.
  • the central processing unit 100 may be configured to implement the information transmission method described in Embodiment 1.
  • the central processing unit 100 may be configured to perform control of: receiving, by the base station, indication information indicating that the user equipment can use the side link if the air interface link cannot normally transmit data; If the air interface fails to transmit data normally, the side link is used to perform data transmission with other user equipments.
  • the user equipment 1100 may further include: a communication module 110, an input unit 120, a display 160, and a power source 170.
  • the functions of the above components are similar to those of the prior art, and are not described herein again. It should be noted that the user equipment 1100 does not have to include all the components shown in FIG. 11, and the above components are not required; in addition, the user equipment 1100 may further include components not shown in FIG. There are technologies.
  • the embodiment of the invention further provides a base station.
  • FIG. 12 is a schematic diagram showing the structure of a base station according to an embodiment of the present invention.
  • base station 1200 can include a central processing unit (CPU) 200 and memory 210; and memory 210 is coupled to central processing unit 200.
  • the memory 210 can store various data; in addition, a program for information processing is stored, and the program is executed under the control of the central processing unit 200.
  • the central processing unit 200 may be configured to implement the information transmission method described in Embodiment 1.
  • the central processing unit 200 can be configured to perform control of transmitting, to the user equipment, indication information indicating that the user equipment can use the side link if the air interface cannot transmit data normally;
  • the user equipment configures resources of the edge link.
  • the base station 1200 may further include: a transceiver 220, an antenna 230, and the like; wherein the functions of the foregoing components are similar to those of the prior art, and details are not described herein again. It should be noted that the base station 1200 does not have to include all the components shown in FIG. 12; in addition, the base station 1200 may further include components not shown in FIG. 12, and reference may be made to the prior art.
  • the embodiment of the present invention further provides a computer readable program, wherein the program causes the information transmission device or the user equipment to perform the information transmission described in Embodiment 1 when the program is executed in an information transmission device or a user equipment method.
  • An embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer is The reading program causes the information transmission device or the user equipment to execute the information transmission method described in Embodiment 1.
  • the above apparatus and method of the present invention may be implemented by hardware or by hardware in combination with software.
  • the present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or steps.
  • the present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, or the like.
  • the information transmission method/device described in connection with the embodiments of the present invention may be directly embodied as hardware, a software module executed by a processor, or a combination of both.
  • one or more of the functional block diagrams shown in FIG. 8 and/or one or more combinations of functional block diagrams may correspond to individual software of a computer program flow.
  • Modules can also correspond to individual hardware modules.
  • These software modules may correspond to the respective steps shown in FIG. 5, respectively.
  • These hardware modules can be implemented, for example, by curing these software modules using a Field Programmable Gate Array (FPGA).
  • FPGA Field Programmable Gate Array
  • the software module can reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.
  • a storage medium can be coupled to the processor to enable the processor to read information from, and write information to, the storage medium; or the storage medium can be an integral part of the processor.
  • the processor and the storage medium can be located in an ASIC.
  • the software module can be stored in the memory of the mobile terminal or in a memory card that can be inserted into the mobile terminal.
  • the software module can be stored in the MEGA-SIM card or a large-capacity flash memory device.
  • One or more of the functional blocks described in the figures and/or one or more combinations of functional blocks may be implemented as a general purpose processor, digital signal processor (DSP) for performing the functions described herein.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • One or more of the functional blocks described with respect to the figures and/or one or more combinations of functional blocks may also be implemented as a combination of computing devices, eg, a combination of a DSP and a microprocessor, multiple microprocessors One or more microprocessors in conjunction with DSP communication or any other such configuration.

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Abstract

一种信息传输方法、装置以及通信系统。所述信息传输方法包括：用户设备接收基站发送的指示所述用户设备能够在空口链路无法正常传输数据的情况下使用边链路的指示信息；所述用户设备在所述空口链路无法正常传输数据的情况下使用所述边链路与其他用户设备进行数据传输。由此，即使在空口链路无法正常传输数据的情况下也能够成功地在其他链路传输数据信息。

Description

信息传输方法、装置以及通信系统 技术领域
本发明涉及通信技术领域，特别涉及一种信息传输方法、装置以及通信系统。
背景技术
随着长期演进(LTE，Long Term Evolution)通信技术大范围和全球化的普及，基于该技术的应用得到越来越广泛的应用。其中，智能交通系统成为一个非常热门的应用方向。在3GPP近期的研究工作中，车联网(V2X，Vehicle-to-everything)通信作为一项重要研究被立项。
图1是车联网通信的典型应用场景的一示意图，如图1所示，车联网通信可以包括几种典型的应用场景：车车通信(V2V，Vehicle-to-Vehicle)，应用于快速移动的车辆(如图1所示的车辆1和车辆2)之间的通信；车人通信(V2P，Vehicle-to-Pedestrian)，应用于快速移动的车辆与手持用户设备的行人(如图1所示的车辆1和行人)之间的通信；人车通信(P2V，Pedestrian-to-Vehicle)，应用于手持用户设备的行人与快速移动的车辆之间的通信；以及V2I(Vehicle-to-Infrastructure)，即车辆与基础设施(如图1所示的车辆1和基站)之间的通信。
以上这些场景中，需要传输的信息可以称之为传输信息(或者简称为信息)，该信息可以包含V2X信息，P2V信息等等。以P2V场景为例，对于支持P2V应用的用户设备可以发送包括位置等信息的应用层信息。P2V信息的大小是可变的，因此，承载该P2V信息的物理资源大小也应该是可变的。蜂窝链路(或者也可以称为空口链路)和边链路都可以配置给用户设备用于传输该P2V信息。
一方面，两个用户设备(UE，User Equipment)之间可以通过蜂窝链路进行通信。在利用蜂窝网进行传输信息时，来自源用户设备的信息将通过空口传输到源基站，源基站再把该信息发送到核心网。核心网根据IP地址找到目标基站，把该信息传输给目标基站，由目标基站把该信息发送给目标用户设备。
另一方面，两个用户设备之间可以通过边链路(Sidelink)进行通信。对于两个距离比较近的用户设备，例如在经过演进的通用陆地无线接入网(E-UTRAN，Evolved Universal Terrestrial Radio Access Network)授权后，可以通过边链路通信的方式传输 信息。
边链路通信方式是指数据包无需通过核心网和基站，用户设备UE1和UE2之间可以直接建立通信链路而进行通信。边链路通信也可以称为设备到设备(D2D，Device to Device)通信。在进行边链路(Sidelink)通信前，一般会进行边链路发现过程。例如，UE1要通过边链路通信方式发送信息给UE2之前，先要发现UE2是否在附近。
图2是边链路通信的一示意图，示出了两个都在基站(例如eNB)覆盖下的UE(UE1和UE2)进行边链路发现或建立边链路通信的情况。图3是边链路通信的另一示意图，示出了一个UE(UE1)在基站覆盖下而另一个UE(UE2)不在基站覆盖下时，进行边链路发现或建立边链路通信的情况。图4是边链路通信的另一示意图，示出了两个都不在基站覆盖下的UE(UE1和UE2)进行边链路发现或建立边链路通信的情况。
在用户设备进行边链路传输之前，该用户设备可以被配置有资源池。资源池中的SA(Scheduling Assignment)池可以用于传输物理边链路控制信道(PSCCH，Physical Sidelink Control Channel)。PSCCH会承载边链路控制信息(SCI，Sidelink Control Information)格式0信息。根据目前的协议，SCI格式0信息会在SA资源池中的两个不同的子帧重复发送两次。
应该注意，上面对技术背景的介绍只是为了方便对本发明的技术方案进行清楚、完整的说明，并方便本领域技术人员的理解而阐述的。不能仅仅因为这些方案在本发明的背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。
发明内容
但是，发明人发现：对于在基站覆盖范围内的用户设备，基站可配置该用户设备使用空口链路或者边链路传输信息。一旦用户设备的应用层选择使用空口链路传输信息并通知用户设备的接入(AS)层，如果这时空口链路无法正常传输数据(例如无线链路失败(RLF，Radio Link Failure)在空口链路上发生)，则不能成功地传输该信息。
本发明实施例提供一种信息传输方法、装置以及通信系统。即使在空口链路无法正常传输数据的情况下也能够成功地在其他链路上传输数据信息。
根据本发明实施例的第一个方面，提供一种信息传输方法，应用于能够使用空口链路和边链路与其他用户设备进行数据传输的用户设备中，所述信息传输方法包括：
用户设备接收基站发送的指示所述用户设备能够在所述空口链路无法正常传输数据的情况下使用所述边链路的指示信息；
所述用户设备在所述空口链路无法正常传输数据的情况下使用所述边链路进行数据传输。
根据本发明实施例的第二个方面，提供一种信息传输装置，配置于能够使用空口链路和边链路进行数据传输的用户设备中，所述信息传输装置包括：
指示接收单元，其接收基站发送的指示所述用户设备能够在所述空口链路无法正常传输数据的情况下使用所述边链路的指示信息；
数据传输单元，其在所述空口链路无法正常传输数据的情况下使用所述边链路进行数据传输。
根据本发明实施例的第三个方面，提供一种通信系统，包括能够使用空口链路和边链路进行数据传输的第一用户设备和第二用户设备，所述通信系统还包括：
基站，其向所述第一用户设备发送指示所述第一用户设备能够在所述空口链路发生无线链路失败的情况下使用所述边链路的指示信息；
其中，所述第一用户设备在所述空口链路无法正常传输数据的情况下使用所述边链路与所述第二用户设备进行数据传输。
本发明实施例的有益效果在于：基站指示用户设备能够在空口链路无法正常传输数据的情况下使用边链路，以及用户设备在空口链路无法正常传输数据的情况下使用边链路与其他用户设备进行数据传输。由此，即使在空口链路无法正常传输数据的情况下也能够成功地在其他链路上传输数据信息。
参照后文的说明和附图，详细公开了本发明的特定实施方式，指明了本发明的原理可以被采用的方式。应该理解，本发明的实施方式在范围上并不因而受到限制。在所附权利要求的精神和条款的范围内，本发明的实施方式包括许多改变、修改和等同。
针对一种实施方式描述和/或示出的特征可以以相同或类似的方式在一个或更多个其它实施方式中使用，与其它实施方式中的特征相组合，或替代其它实施方式中的特征。
应该强调，术语“包括/包含”在本文使用时指特征、整件、步骤或组件的存在，但并不排除一个或更多个其它特征、整件、步骤或组件的存在或附加。
附图说明
在本发明实施例的一个附图或一种实施方式中描述的元素和特征可以与一个或更多个其它附图或实施方式中示出的元素和特征相结合。此外，在附图中，类似的标号表示几个附图中对应的部件，并可用于指示多于一种实施方式中使用的对应部件。
图1是车联网通信的典型应用场景的一示意图；
图2是边链路通信的一示意图；
图3是边链路通信的另一示意图；
图4是边链路通信的另一示意图；
图5是本发明实施例1的信息传输方法的示意图；
图6是本发明实施例1的信息传输方法的另一示意图；
图7是本发明实施例1的信息传输方法的另一示意图；
图8是本发明实施例2的信息传输装置的示意图；
图9是本发明实施例2的信息传输装置的另一示意图；
图10是本发明实施例3的通信系统的示意图；
图11是本发明实施例3的用户设备的示意图；
图12是本发明实施例3的基站的示意图。
具体实施方式
参照附图，通过下面的说明书，本发明的前述以及其它特征将变得明显。在说明书和附图中，具体公开了本发明的特定实施方式，其表明了其中可以采用本发明的原则的部分实施方式，应了解的是，本发明不限于所描述的实施方式，相反，本发明包括落入所附权利要求的范围内的全部修改、变型以及等同物。
在本申请中，基站可以被称为接入点、广播发射机、节点B、演进节点B(eNB)等，并且可以包括它们的一些或所有功能。在文中将使用术语“基站”。每个基站对特定的地理区域提供通信覆盖。术语“小区”可以指的是基站和/或其覆盖区域，这取决于使用该术语的上下文。
在本申请中，移动站或设备可以被称为“用户设备”(UE，User Equipment)。UE可以是固定的或移动的，并且也可以称为移动台、终端、接入终端、用户单元、站等。UE可以是蜂窝电话、个人数字助理(PDA)、无线调制解调器、无线通信设备、 手持设备、膝上型计算机、无绳电话等。
实施例1
本发明实施例提供一种信息传输方法，应用于能够使用空口链路和边链路与其他用户设备进行数据传输的用户设备中。图5是本发明实施例的信息传输方法的示意图，如图5所示，所述信息传输方法包括：
步骤501，用户设备接收基站发送的指示所述用户设备能够在空口链路无法正常传输数据的情况下使用边链路的指示信息；
步骤502，用户设备在空口链路无法正常传输数据的情况下，使用边链路与所述其他用户设备进行数据传输。
在本实施例中，某一用户设备可以与另一用户设备进行V2X信息的传输。其中，该V2X信息例如是指进行车联网通信的各设备之间传输的信息，例如可以是V2V信息，也可以是V2P信息，V2I信息，V2N(Vehicle-to-Network)信息，I2V信息，P2V信息等；但本发明不限于此，以下仅以P2V信息为例进行说明。
在本实施例中，该基站可以为宏基站(例如eNB)，该宏基站产生的宏小区(例如Macro cell)可以为该用户设备提供服务；或者该基站也可以为微基站，该微基站产生的微小区(例如Pico cell或small cell)可以为该用户设备提供服务。但本发明不限于此，可以根据实际情况确定具体的场景。
在本实施例中，空口链路无法正常传输数据的情况可以包括：空口链路发生无线链路失败；或者空口链路进行连接重建过程；或者空口链路进行切换过程。但本发明不限于此，还可以是空口链路无法正常传输数据的其他情况。
以下先以空口链路发生无线链路失败为例进行说明。
在本实施例中，该用户设备还可以接收基站为边链路配置的资源。基站指示用户设备能够在空口链路发生无线链路失败的情况下使用边链路，并为边链路配置相应的资源；用户设备在空口链路发生无线链路失败的情况下使用边链路进行数据传输。由此，即使在空口链路上发生无线链路失败的情况下也能够成功地传输数据信息。
在一个实施方式中，用户设备在空口链路发生无线链路失败的情况下使用边链路进行数据传输，可以包括：用户设备的接入层将所述空口链路发生无线链路失败的信息通知给所述用户设备的应用层；用户设备的应用层在需要传输数据时选择所述边链 路传输所述数据；以及用户设备的接入层根据所述应用层的选择使用所述边链路传输所述数据。
关于用户设备的应用层，例如可以是该用户设备中独立运行的某一应用程序，或者某一功能实体。关于用户设备的接入层，可以是与其他设备进行通信的实体，例如介质访问控制(MAC，Media Access Control)层、分组数据汇集协议(PDCP，Packet Data Convergence Protocol)层等等。本发明不限于此，对于本发明的应用层和接入层应广义地进行理解，而不应局限于某一或某些协议层。
图6是本发明实施例的信息传输方法的另一示意图，从基站侧和用户设备侧进行说明。如图6所示，所述信息传输方法包括：
步骤601，基站为用户设备配置指示信息以及边链路资源；
在本实施例中，基站可以为用户设备配置如下指示信息：在发送信息时，如果用户设备的应用层选择使用蜂窝链路(即空口链路)进行信息传输，并且该蜂窝链路正处于无线链路失败状态，该用户设备可以使用边链路传输该信息。
此外，基站还可以通过广播信令配置相关的边链路资源给该用户设备。
步骤602，用户设备向基站发送请求信息；
用户设备可以发送包含兴趣业务的请求信息给基站；例如，该用户设备对发送P2V信息感兴趣；等等。
步骤603，基站配置该用户设备能够使用空口链路和边链路来传输信息；
在本实施例中，基站允许空口链路和边链路均可被该用户设备使用。此外，基站还可以配置相应的资源。
步骤604，用户设备的接入层通知应用层能够使用空口链路和边链路传输信息；
在本实施例中，当需要传输信息时，由该应用层做出选择并告知接入层。
步骤605，用户设备的接入层将空口链路发生无线链路失败的信息通知给用户设备的应用层；
在本实施方式中，在空口链路发生无线链路失败时，用户设备的接入层可以通过层间交互把该信息通知给应用层，以便应用层避免选择空口链路(即蜂窝传输链路)。其中，空口链路发生无线链路失败例如包括：定时器T310或T311正在运行，关于T310或T311的具体内容，可以参考现有的TS36.331第7.3节，下表1示出了T310相关的内容。
表1定时器T310的内容
Figure PCTCN2016094630-appb-000001
下表2示出了T311相关的内容。
表2定时器T311的内容
Figure PCTCN2016094630-appb-000002
值得注意的是，以上仅以定时器T310或T311是否运行为例，示意性说明了空口链路发生无线链路失败的情况，但本发明不限于此，还可以通过其他的方式判断空口链路是否发生无线链路失败。
步骤606，用户设备的应用层在需要传输数据时选择边链路传输所述数据；
在本实施方式中，当有信息需要传输时，应用层不会选择正在经历链路失败的蜂窝传输，从而选择边链路进行传输。应用层把需要传输的信息和选择的链路告知接入层，让其在边链路上发送该信息。
步骤607，用户设备的接入层根据应用层的选择使用边链路传输数据。
在另一个实施方式中，用户设备在空口链路发生无线链路失败的情况下使用边链 路进行数据传输，还可以包括：用户设备的应用层在需要传输数据时选择空口链路或者边链路传输数据；以及用户设备的接入层在空口链路发生无线链路失败且应用层选择了空口链路的情况下，使用边链路传输数据。
图7是本发明实施例的信息传输方法的另一示意图，从基站侧和用户设备侧进行说明。如图7所示，所述信息传输方法包括：
步骤701，基站为用户设备配置指示信息以及边链路资源；
在本实施例中，基站可以为用户设备配置如下指示信息：在发送信息时，如果用户设备的应用层选择使用蜂窝链路进行信息传输，并且该蜂窝链路正处于无线链路失败状态，该用户设备可以使用边链路传输该信息。
此外，基站还可以通过广播信令配置相关的边链路资源给该用户设备。
步骤702，用户设备向基站发送请求信息；
用户设备可以发送包含兴趣业务的请求信息给基站；例如，该用户设备对发送P2V信息感兴趣；等等。
步骤703，基站配置该用户设备能够使用空口链路和边链路来传输信息；
在本实施例中，基站允许空口链路和边链路均可被该用户设备使用。此外，基站还可以配置相应的资源。
步骤704，用户设备的接入层通知应用层能够使用空口链路和边链路传输信息；
在本实施例中，当需要传输信息时，由该应用层做出选择并告知接入层。
步骤705，用户设备的应用层在需要传输数据时选择空口链路或边链路传输数据；
在本实施方式中，在空口链路上发生无线链路失败(例如时钟T310或T311正在运行)时，用户设备的接入层不把该信息通知给应用层。应用层依然认为蜂窝链路和边链路都可以正常使用。
当有信息需要传输时，应用层根据自身掌握的信息，把需要传输的信息转给接入层，并同时告知接入层选择的传输链路。
步骤706，在空口链路发生无线链路失败且应用层选择了空口链路的情况下，用户设备的接入层使用边链路传输数据。
在本实施方式中，对于其他的情况(例如空口链路发生无线链路失败且应用层选择了边链路)，用户设备的接入层仍可以使用应用层选择的边链路传输数据。
例如，当用户设备的接入层被应用层告知使用蜂窝链路传输该信息，并发现该蜂 窝链路正经历无线链路失败(例如时钟T310或T311正在运行))时，该用户设备的接入层使用边链路资源进行信息传输，而不使用应用层选择的空口链路。
值得注意的是，附图6和7仅示意性地对本发明实施例进行了说明，但本发明不限于此。例如可以适当地调整各个步骤之间的执行顺序，此外还可以增加其他的一些步骤或者减少其中的某些步骤。本领域的技术人员可以根据上述内容进行适当地变型，而不仅限于上述附图的记载。
以上以空口链路发生无线链路失败为例进行说明。
在本实施例中，空口链路无法正常传输数据的情况还可以包括：空口链路进行连接重建过程；或者空口链路进行切换过程。处理过程类似于图6和图7的情况，以下仅对上述过程的判断进行进一步说明。
在本实施例中，空口链路进行连接重建过程例如可以包括：定时器T301正在运行。空口链路进行切换过程例如可以包括：定时器T304正在运行。但本发明不限于此，例如如果T301、T304、T310和T311中的任意一个或多个正在运行，就可以认为发生了空口链路无法正常传输数据的情况。
关于T301或T304的具体内容，可以参考现有的TS36.331第7.3节，下表3示出了与T301和T304相关的内容。
表3定时器T301和T304的内容
Figure PCTCN2016094630-appb-000003
Figure PCTCN2016094630-appb-000004
值得注意的是，以上仅以定时器T301或T304是否运行为例，示意性说明了空口链路进行连接重建过程或者进行切换过程的情况，但本发明不限于此，还可以通过其他的方式判断空口链路是否无法正常传输数据。
由上述实施例可知，基站指示用户设备能够在空口链路无法正常传输数据的情况下使用边链路，以及用户设备在空口链路无法正常传输数据的情况下使用边链路与其他用户设备进行数据传输。由此，即使在空口链路无法正常传输数据的情况下也能够成功地在其他链路传输数据信息。
实施例2
本发明实施例提供一种信息传输装置，配置于能够使用空口链路和边链路进行数据传输的用户设备中。本发明实施例对应于实施例1的信息传输方法，相同的内容不再赘述。
图8是本发明实施例的信息传输装置的示意图，如图8所示，信息传输装置800包括：
指示接收单元801，其接收基站发送的指示所述用户设备能够在所述空口链路无法正常传输数据的情况下使用所述边链路的指示信息；
数据传输单元802，其在所述空口链路无法正常传输数据的情况下，使用所述边链路与其他用户设备进行数据传输。
在本实施例中，空口链路无法正常传输数据的情况可以包括：空口链路发生无线 链路失败；或者空口链路进行连接重建过程；或者空口链路进行切换过程；但本发明不限于此。
图9是本发明实施例的信息传输装置的另一示意图，如图9所示，信息传输装置900包括：指示接收单元801和数据传输单元802，如上所述。
如图9所示，信息传输装置900还可以包括：
资源接收单元901，其接收基站为边链路配置的资源。
如图9所示，数据传输单元802可以包括接入层单元902和应用层单元903。
在一个实施方式中，接入层单元902将所述空口链路无法正常传输数据的信息通知给应用层单元903；应用层单元903在需要传输数据时选择所述边链路传输所述数据；以及，接入层单元902根据应用层单元903的选择使用边链路传输数据。
在另一个实施方式中，应用层单元903在需要传输数据时选择所述空口链路或者所述边链路传输所述数据；以及，接入层单元902在所述空口链路无法正常传输数据且所述应用层单元选择了所述空口链路的情况下，使用所述边链路传输数据。
在本实施例中，空口链路无法正常传输数据的情况可以包括：定时器T310或T311正在运行；或者定时器T301正在运行；或者定时器T304正在运行。
由上述实施例可知，基站指示用户设备能够在空口链路无法正常传输数据的情况下使用边链路，以及用户设备在空口链路无法正常传输数据的情况下使用边链路与其他用户设备进行数据传输。由此，即使在空口链路无法正常传输数据的情况下也能够成功地在其他链路传输数据信息。
实施例3
本发明实施例还提供一种通信系统，与实施例1或2相同的内容不再赘述。
图10是本发明实施例的通信系统的示意图，如图10所示，通信系统1000可以包括基站1001和第一用户设备1002和第二用户设备1003。其中，第一用户设备1002可以配置有如实施例2所述的信息传输装置800或900。
本发明实施例还提供一种用户设备，配置有如实施例2所述的信息传输装置800或900。
图11是本发明实施例的用户设备的示意图。如图11所示，该用户设备1100可以包括中央处理器100和存储器140；存储器140耦合到中央处理器100。值得注意 的是，该图是示例性的；还可以使用其他类型的结构，来补充或代替该结构，以实现电信功能或其他功能。其中，中央处理器100可以被配置为实现实施例1所述的信息传输方法。
例如，中央处理器100可以被配置为进行如下的控制：接收基站发送的指示所述用户设备能够在所述空口链路无法正常传输数据的情况下使用所述边链路的指示信息；以及在所述空口链路无法正常传输数据的情况下使用所述边链路与其他用户设备进行数据传输。
如图11所示，该用户设备1100还可以包括：通信模块110、输入单元120、显示器160、电源170。其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，用户设备1100也并不是必须要包括图11中所示的所有部件，上述部件并不是必需的；此外，用户设备1100还可以包括图11中没有示出的部件，可以参考现有技术。
本发明实施例还提供一种基站。
图12是本发明实施例的基站的构成示意图。如图12所示，基站1200可以包括：中央处理器(CPU)200和存储器210；存储器210耦合到中央处理器200。其中该存储器210可存储各种数据；此外还存储信息处理的程序，并且在中央处理器200的控制下执行该程序。其中，中央处理器200可以被配置为实现实施例1所述的信息传输方法。
例如，中央处理器200可以被配置为进行如下的控制：向用户设备发送指示所述用户设备能够在所述空口链路无法正常传输数据的情况下使用所述边链路的指示信息；以及为所述用户设备配置所述边链路的资源。
此外，如图12所示，基站1200还可以包括：收发机220和天线230等；其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，基站1200也并不是必须要包括图12中所示的所有部件；此外，基站1200还可以包括图12中没有示出的部件，可以参考现有技术。
本发明实施例还提供一种计算机可读程序，其中当在信息传输装置或者用户设备中执行所述程序时，所述程序使得所述信息传输装置或者用户设备执行实施例1所述的信息传输方法。
本发明实施例还提供一种存储有计算机可读程序的存储介质，其中所述计算机可 读程序使得信息传输装置或者用户设备执行实施例1所述的信息传输方法。
本发明以上的装置和方法可以由硬件实现，也可以由硬件结合软件实现。本发明涉及这样的计算机可读程序，当该程序被逻辑部件所执行时，能够使该逻辑部件实现上文所述的装置或构成部件，或使该逻辑部件实现上文所述的各种方法或步骤。本发明还涉及用于存储以上程序的存储介质，如硬盘、磁盘、光盘、DVD、flash存储器等。
结合本发明实施例描述的信息传输方法/装置可直接体现为硬件、由处理器执行的软件模块或二者组合。例如，图8中所示的功能框图中的一个或多个和/或功能框图的一个或多个组合(例如，指示接收单元、数据传输单元等)，既可以对应于计算机程序流程的各个软件模块，亦可以对应于各个硬件模块。这些软件模块，可以分别对应于图5所示的各个步骤。这些硬件模块例如可利用现场可编程门阵列(FPGA)将这些软件模块固化而实现。
软件模块可以位于RAM存储器、闪存、ROM存储器、EPROM存储器、EEPROM存储器、寄存器、硬盘、移动磁盘、CD-ROM或者本领域已知的任何其它形式的存储介质。可以将一种存储介质耦接至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息；或者该存储介质可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。该软件模块可以存储在移动终端的存储器中，也可以存储在可插入移动终端的存储卡中。例如，若设备(如移动终端)采用的是较大容量的MEGA-SIM卡或者大容量的闪存装置，则该软件模块可存储在该MEGA-SIM卡或者大容量的闪存装置中。
针对附图中描述的功能方框中的一个或多个和/或功能方框的一个或多个组合，可以实现为用于执行本申请所描述功能的通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其它可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件或者其任意适当组合。针对附图描述的功能方框中的一个或多个和/或功能方框的一个或多个组合，还可以实现为计算设备的组合，例如，DSP和微处理器的组合、多个微处理器、与DSP通信结合的一个或多个微处理器或者任何其它这种配置。
以上结合具体的实施方式对本发明进行了描述，但本领域技术人员应该清楚，这些描述都是示例性的，并不是对本发明保护范围的限制。本领域技术人员可以根据本发明的精神和原理对本发明做出各种变型和修改，这些变型和修改也在本发明的范围内。

Claims (15)

  1. 一种信息传输方法，应用于能够使用空口链路和边链路与其他用户设备进行数据传输的用户设备中，所述信息传输方法包括：
    用户设备接收基站发送的指示所述用户设备能够在所述空口链路无法正常传输数据的情况下使用所述边链路的指示信息；
    所述用户设备在所述空口链路无法正常传输数据的情况下使用所述边链路与所述其他用户设备进行数据传输。
  2. 根据权利要求1所述的信息传输方法，其中，所述空口链路无法正常传输数据的情况包括：所述空口链路发生无线链路失败；或者所述空口链路进行连接重建过程；或者所述空口链路进行切换过程。
  3. 根据权利要求1所述的信息传输方法，其中，所述信息传输方法还包括：
    所述用户设备接收所述基站为所述边链路配置的资源。
  4. 根据权利要求1所述的信息传输方法，其中，所述用户设备在所述空口链路无法正常传输数据的情况下使用所述边链路与所述其他用户设备进行数据传输包括：
    所述用户设备的接入层将所述空口链路无法正常传输数据的信息通知给所述用户设备的应用层；
    所述用户设备的应用层在需要传输数据时选择所述边链路传输所述数据；以及
    所述用户设备的接入层根据所述应用层的选择使用所述边链路传输所述数据。
  5. 根据权利要求1所述的信息传输方法，其中，所述用户设备在所述空口链路无法正常传输数据的情况下使用所述边链路与所述其他用户设备进行数据传输包括：
    所述用户设备的应用层在需要传输数据时选择所述空口链路或者所述边链路传输所述数据；以及
    所述用户设备的接入层在所述空口链路无法正常传输数据且所述应用层选择了所述空口链路的情况下，使用所述边链路传输所述数据。
  6. 根据权利要求1所述的信息传输方法，其中，所述空口链路无法正常传输数据的情况包括：定时器T310或T311正在运行；或者定时器T301正在运行；或者定时器T304正在运行。
  7. 一种信息传输装置，配置于能够使用空口链路和边链路与其他用户设备进行 数据传输的用户设备中，所述信息传输装置包括：
    指示接收单元，其接收基站发送的指示所述用户设备能够在所述空口链路无法正常传输数据的情况下使用所述边链路的指示信息；
    数据传输单元，其在所述空口链路无法正常传输数据的情况下使用所述边链路与所述其他用户设备进行数据传输。
  8. 根据权利要求7所述的信息传输装置，其中，所述空口链路无法正常传输数据的情况包括：所述空口链路发生无线链路失败；或者所述空口链路进行连接重建过程；或者所述空口链路进行切换过程。
  9. 根据权利要求7所述的信息传输装置，其中，所述信息传输装置还包括：
    资源接收单元，其接收所述基站为所述边链路配置的资源。
  10. 根据权利要求7所述的信息传输装置，其中，所述数据传输单元包括接入层单元和应用层单元；
    所述接入层单元将所述空口链路无法正常传输数据的信息通知给所述应用层单元；所述应用层单元在需要传输数据时选择所述边链路传输所述数据；以及，所述接入层单元根据所述应用层单元的选择使用所述边链路传输所述数据。
  11. 根据权利要求7所述的信息传输装置，其中，所述数据传输单元包括接入层单元和应用层单元；
    所述应用层单元在需要传输数据时选择所述空口链路或者所述边链路传输所述数据；以及，所述接入层单元在所述空口链路无法正常传输数据且所述应用层单元选择了所述空口链路的情况下，使用所述边链路传输所述数据。
  12. 根据权利要求7所述的信息传输装置，其中，所述空口链路无法正常传输数据的情况包括：定时器T310或T311正在运行；或者定时器T301正在运行；或者定时器T304正在运行。
  13. 一种通信系统，包括能够使用空口链路和边链路进行数据传输的第一用户设备和第二用户设备，所述通信系统还包括：
    基站，其向所述第一用户设备发送指示所述第一用户设备能够在所述空口链路无法正常传输数据的情况下使用所述边链路的指示信息；
    其中，所述第一用户设备在所述空口链路无法正常传输数据的情况下使用所述边链路与所述第二用户设备进行数据传输。
  14. 根据权利要求13所述的通信系统，其中，所述基站还用于为所述第一用户设备配置所述边链路的资源。
  15. 根据权利要求13所述的通信系统，其中，所述空口链路无法正常传输数据的情况包括：所述空口链路发生无线链路失败；或者所述空口链路进行连接重建过程；或者所述空口链路进行切换过程。
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