WO2016145735A1 - 基于终端直连通信的数据共享方法、装置和终端 - Google Patents

基于终端直连通信的数据共享方法、装置和终端 Download PDF

Info

Publication number
WO2016145735A1
WO2016145735A1 PCT/CN2015/080387 CN2015080387W WO2016145735A1 WO 2016145735 A1 WO2016145735 A1 WO 2016145735A1 CN 2015080387 W CN2015080387 W CN 2015080387W WO 2016145735 A1 WO2016145735 A1 WO 2016145735A1
Authority
WO
WIPO (PCT)
Prior art keywords
terminal
information
target terminal
data sharing
path
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/CN2015/080387
Other languages
English (en)
French (fr)
Inventor
雷艺学
张云飞
张晨璐
何成名
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Original Assignee
Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yulong Computer Telecommunication Scientific Shenzhen Co Ltd filed Critical Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Publication of WO2016145735A1 publication Critical patent/WO2016145735A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0215—Traffic management, e.g. flow control or congestion control based on user or device properties, e.g. MTC-capable devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • 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
    • H04W40/04—Communication route or path selection, e.g. power-based or shortest path routing based on wireless node resources

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a data sharing method based on terminal direct connection communication, a data sharing device based on terminal direct connection communication, and a terminal.
  • D2D Device to Device
  • D2D technology mainly includes D2D discovery (ie discovery phase) and D2D communication (ie communication phase).
  • D2D discovery and D2D communication are independent services.
  • D2D communication allows two UEs to directly send data directly through a specific channel (sidelink channel). And transmission without transmission through the base station.
  • Data sharing based on D2D technology is an important application scenario.
  • the D2D technology currently defined by 3GPP is based on a broadcast connectionless communication mechanism.
  • D2D discovery only one-way discovery can be supported, and data sharing based on D2D technology cannot be well supported.
  • the mechanism based on the dynamic topology discovery needs to introduce the measurement and reporting mechanism of the D2D terminal. It is necessary to introduce a certain complexity operation mechanism between the UE and the eNB (the base station). The essence of the mechanism is in the RAN (Radio Access Network, The radio access network side introduces a topology information relationship between UEs.
  • the proximity relationship of the UE is maintained at the application layer, and cannot be associated with a communication path that supports data sharing; secondly, the proximity relationship is based on a one-way discovery mechanism. Through this discovery mechanism, only the location relationship of the UE can be determined, and it is not possible to determine whether D2D communication can be performed between the two UEs.
  • the present invention is based on at least one of the above technical problems, and proposes a new data sharing scheme based on terminal direct connection communication suitable for a terminal, which can ensure more implementation under the premise of reducing the influence on the RAN side technical specification as much as possible. Excellent D2D data sharing.
  • the present invention provides a data sharing method for terminal-based direct connection communication, which includes: determining at least one target terminal that needs to perform data sharing, and acquiring an application layer user identifier of the at least one target terminal. Mapping the application layer user identifier of the at least one target terminal to identification information that can be identified by an EPS (Evolved Packet System) device; according to the identification information that the EPS device can identify and the resource availability of the shared channel, A transmission path for performing the data sharing is selected, and data sharing with the at least one target terminal is achieved by the selected transmission path.
  • EPS Evolved Packet System
  • the application layer user identifier of the target terminal is obtained, and the application layer user identifier is mapped to the EPS.
  • the identification information that can be identified by the device is that the UE proximity relationship of the application layer is mapped to the EPS layer, so that the selection of the transmission path for data sharing can be conveniently implemented according to the identification information that the EPS device can identify and the resource availability of the shared channel. Data sharing is achieved according to the selected transmission path.
  • the EPS device may include: a user equipment (UE), an LTE (ie, a 4G access network part) device, and an EPC (Evolved Packet Core) device.
  • UE user equipment
  • LTE ie, a 4G access network part
  • EPC Evolved Packet Core
  • the determining the at least one target terminal specifically includes: determining, by the terminal, the at least one target terminal autonomously; and/or the terminal interacting with the network side device to determine The at least one target terminal.
  • the terminal may determine the target terminal for data sharing in two ways, that is, determine the autonomously, or perform the determination by interacting with the network side device.
  • the application layer user identifier of the at least one target terminal is mapped to the identification information that the EPS device can recognize.
  • the method before selecting the transmission path, further includes: determining whether the proximity information of the at least one target terminal has been acquired; performing, when determining that the proximity information of the at least one target terminal has been acquired, performing And the step of selecting the transmission path; and determining whether the application layer user identifier of the at least one target terminal and the EPS device are identifiable according to whether the terminal acquires the proximity information of the at least one target terminal Identifying information, and/or performing a D2D discovery process according to the number of the at least one target terminal to acquire proximity information of the at least one target terminal.
  • the operation of selecting the transmission path may be performed; if the proximity information of the at least one target terminal is not acquired, Then you need to perform the discovery process.
  • the step of performing the D2D discovery process may specifically be as follows:
  • Solution 1 If the terminal has acquired the application layer user identifier of the at least one target terminal and the identifier information that the EPS device can identify, the application layer user identifier and the EPS device according to the at least one target terminal The identifiable identification information transmits a discovery message to the at least one target terminal to perform the D2D discovery process. After the application layer user identifier of the target terminal and the identification information that the EPS device can identify, the discovery message may be sent in a targeted manner to perform the D2D discovery process.
  • Solution 2 If the terminal has acquired the application layer user identifier of the at least one target terminal and the identification information that the EPS device can identify, and the number of the at least one target terminal is less than or equal to a predetermined number, The application layer user identifier of the at least one target terminal and the identification information that the EPS device can identify send a discovery message to the at least one target terminal to perform the D2D discovery process. In this solution, if the number of target terminals is small, the discovery message can be directed to reduce signaling and avoid unnecessary signal reception and transmission.
  • a discovery message is broadcasted to perform the D2D discovery process.
  • the method further includes: determining, according to a transmission characteristic of the wireless transmission layer of the terminal, whether the data transmission needs to be performed in one direction or in two directions; determining data transmission The one-way D2D discovery process is performed when the input needs to be performed in one direction; and the two-way D2D discovery process is triggered when it is determined that the data transmission needs to be performed in both directions.
  • the wireless transmission layer does not need to support connection-oriented, it can be performed in one direction, and the sender terminal only needs to consider sending to the receiver terminal without performing ACK (acknowledgement), and the unidirectional discovery process can be directly adopted;
  • the transport layer needs to support connection-oriented, then ACK is required, and data transmission needs to be performed in both directions.
  • the UE needs to trigger the two-way discovery process.
  • the identifier information that the EPS device can identify includes: background information of the user equipment maintained by the Prose device (such as D2D discovery and communication authorization information); and user equipment capability information saved by the mobility management entity. (UE capability), user equipment state (UE state) information, serving cell information; priority information of user equipment saved by the home subscriber server (eg, whether WLAN-based D2D path is preferred, user priority information, etc.); Carrier frequency setting information for communication (such as whether to use the dedicated carrier frequency, etc.).
  • the transmission path includes: an Infra-path (hereinafter referred to as IP) of an infrastructure mode, an eNB-routed path (hereinafter referred to as EP), and a user equipment.
  • IP Infra-path
  • EP eNB-routed path
  • UE-relayed path (UEP) cellular-based direct path with dedicated channel (CDPD), cellular-based direct path (cellular-based direct path) With co-channel (hereinafter referred to as CDPC), WLAN-based direct path for devices with WLAN access capability (hereinafter referred to as WP).
  • CDPD dedicated channel
  • WP WLAN-based direct path for devices with WLAN access capability
  • the step of selecting a transmission path for performing data sharing according to the identifier information that the EPS device can identify and the resource availability of the shared channel includes:
  • the EPS device Determining, according to the identification information that the EPS device can identify, status information of the at least one target terminal, and selecting the transmission path according to the status information and resource availability of the shared channel, where the status information includes at least one of the following or Combination of multiple: current location information (such as serving base station information, relationship with the current UE's serving cell), idle (Idle) state or connected state, mobility information, WLAN-related terminal capability information (If there is no WLAN interface, etc.).
  • current location information such as serving base station information, relationship with the current UE's serving cell
  • Idle idle
  • mobility information such as Wi-related terminal capability information (If there is no WLAN interface, etc.).
  • the application layer user identifier of the target terminal is obtained, and the application layer user identifier is mapped to the EPS.
  • the identification information that can be identified by the device is that the UE proximity relationship of the application layer is mapped to the EPS layer, so that the selection of the transmission path for data sharing can be conveniently implemented according to the identification information that the EPS device can identify and the resource availability of the shared channel. Data sharing is achieved according to the selected transmission path.
  • the EPS device may include: a user equipment (UE), an LTE (ie, a 4G access network part) device, and an EPC (Evolved Packet Core) device.
  • UE user equipment
  • LTE ie, a 4G access network part
  • EPC Evolved Packet Core
  • the determining unit is specifically configured to: determine, by the terminal, the at least one target terminal autonomously; and/or the terminal interacts with the network side device to determine the at least one Target terminal.
  • the terminal may determine the target terminal for data sharing in two ways, that is, determine the autonomously, or perform the determination by interacting with the network side device.
  • the mapping unit is configured to: interact with the network side device to map the application layer user identifier of the at least one target terminal to the identification information that the EPS device can identify.
  • the method further includes: a determining unit, configured to determine, before the selecting unit selects the transmission path, whether the terminal has acquired proximity information of the at least one target terminal; Specifically, when the determining unit determines that the terminal has acquired the proximity information of the at least one target terminal, performing an operation of selecting the transmission path;
  • the processing unit is further configured to: when the determining unit determines that the terminal does not acquire the neighboring information of the at least one target terminal, according to whether the terminal acquires an application layer user identifier and a location of the at least one target terminal Determining identification information that can be recognized by the EPS device, and/or performing a D2D discovery process according to the number of the at least one target terminal to acquire proximity information of the at least one target terminal.
  • the operation of selecting the transmission path may be performed; if the proximity information of the at least one target terminal is not acquired, Then you need to perform the discovery process.
  • the operation unit performing the D2D discovery process may have the following solutions:
  • Solution 1 If the terminal has acquired the application layer user identifier of the at least one target terminal and the identifier information that the EPS device can identify, the application layer user identifier and the EPS device according to the at least one target terminal The identifiable identification information transmits a discovery message to the at least one target terminal to perform the D2D discovery process. After the application layer user identifier of the target terminal and the identification information that the EPS device can identify, the discovery message may be sent in a targeted manner to perform the D2D discovery process.
  • Solution 2 If the terminal has acquired the application layer user identifier of the at least one target terminal and the identification information that the EPS device can identify, and the number of the at least one target terminal is less than or equal to a predetermined number, The application layer user identifier of the at least one target terminal and the identification information that the EPS device can identify send a discovery message to the at least one target terminal to perform the D2D discovery process. In this solution, if the number of target terminals is small, the discovery message can be directed to reduce signaling and avoid unnecessary signal reception and transmission.
  • a discovery message is broadcasted to perform the D2D discovery process.
  • the processing unit is further configured to: determine, according to a transmission characteristic of the wireless transmission layer of the terminal, whether the data transmission needs to be performed in one direction or in two directions; and determine that the data transmission needs to be performed in one direction.
  • the one-way D2D discovery process is performed; and the two-way D2D discovery process is triggered when it is determined that the data transmission needs to be performed in both directions.
  • the wireless transmission layer does not need to support connection-oriented, it can be performed in one direction, and the sender terminal only needs to consider sending to the receiver terminal without performing ACK (acknowledgement), and the terminal can directly adopt the single To the discovery process; if the wireless transport layer needs to support connection-oriented, ACK needs to be performed, and data transmission needs to be performed in both directions, and the UE needs to trigger the two-way discovery process.
  • the identifier information that the EPS device can identify includes: background information of the user equipment maintained by the Prose device (such as D2D discovery and communication authorization information); and user equipment capability information saved by the mobility management entity. (UE capability), user equipment state (UE state) information, serving cell information; priority information of user equipment saved by the home subscriber server (eg, whether WLAN-based D2D path is preferred, user priority information, etc.); Carrier frequency setting information for communication (such as whether to use the dedicated carrier frequency, etc.).
  • the transmission path includes: an Infra-path (hereinafter referred to as IP) of an infrastructure mode, an eNB-routed path (hereinafter referred to as EP), and a user equipment.
  • IP Infra-path
  • EP eNB-routed path
  • UE-relayed path (UEP) cellular-based direct path with dedicated channel (CDPD), cellular-based direct path (cellular-based direct path) With co-channel (hereinafter referred to as CDPC), WLAN-based direct path for devices with WLAN access capability (hereinafter referred to as WP).
  • CDPD dedicated channel
  • WP WLAN-based direct path for devices with WLAN access capability
  • a terminal comprising a communication bus, a network interface, a memory, and a processor, wherein:
  • the communication bus is configured to implement connection communication between the network interface, the memory, and the processor;
  • the network interface is configured to acquire an application layer user identifier of at least one target terminal
  • the network interface is further configured to implement data sharing with the at least one target terminal
  • the memory stores a set of program codes, and the processor calls the program code stored in the memory to perform the following operations:
  • the determining, by the processor, the at least one target terminal includes:
  • the processor interacts with the network side device through the network interface to map an application layer user identifier of the at least one target terminal to the identification information that the EPS device can identify.
  • the method before the processor selects the transmission path, the method further includes:
  • the processor performs the D2D discovery process, which specifically includes:
  • the application layer user identifier of the at least one target terminal and the EPS device can identify
  • the identification information sends a discovery message to the at least one target terminal to perform the D2D discovery process
  • the terminal has acquired the application layer user identifier of the at least one target terminal and the identification information that the EPS device can identify, and the number of the at least one target terminal is less than or equal to a predetermined number, according to the at least one Sending a discovery message to the at least one target terminal to perform the D2D discovery process; and/or
  • a discovery message is broadcasted to perform the D2D discovery process.
  • the method further includes:
  • a two-way D2D discovery process is triggered when it is determined that the data transfer needs to be performed in both directions.
  • the identifier information that the EPS device can identify includes:
  • the background information of the user equipment maintained by the Prose device The background information of the user equipment maintained by the Prose device; the user equipment capability information saved by the mobility management entity, the user equipment status information, the serving cell information, the priority information of the user equipment saved by the home user server, and the carrier frequency setting of the terminal direct communication information.
  • the transmission path includes:
  • Infrastructure mode D2D path base station routing path, user equipment relay path, cellular network based dedicated channel direct path, cellular based and shared channel direct path, WLAN based direct path with wireless access capable device.
  • the processor selects a transmission path for performing data sharing according to the identifier information that the EPS device can identify and the resource availability of the shared channel, and specifically includes:
  • the EPS device Determining status information of the at least one target terminal according to the identification information that the EPS device can identify, and selecting the according to the status information and resource availability of the shared channel a transmission path, the status information comprising a combination of at least one or more of: current location information, idle state or connection status, mobility information, WLAN-related terminal capability information.
  • FIG. 1 shows a schematic flow chart of a method for data sharing based on terminal direct communication applicable to a terminal according to an embodiment of the present invention
  • FIG. 2 is a schematic block diagram of a data sharing apparatus based on terminal direct communication applicable to a terminal according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram showing a signaling interaction process in a two-way discovery process according to an embodiment of the present invention
  • FIG. 4 shows a schematic diagram of a communication path of data sharing based on D2D communication according to an embodiment of the present invention
  • FIG. 5 shows a schematic structural diagram of a terminal according to an embodiment of the present invention.
  • FIG. 1 shows a schematic flow chart of a method of data sharing based on terminal direct communication applicable to a terminal according to an embodiment of the present invention.
  • a data sharing method for terminal-based direct connection communication applicable to a terminal includes: Step 102: determining at least one target terminal that needs to perform data sharing, and acquiring the at least one target The application layer user identifier of the terminal; step 104, The application layer user identifier of the at least one target terminal is mapped to identifier information that can be identified by an Evolved Packet System (EPS) device.
  • Step 106 According to the identifier information that the EPS device can identify and the resource availability of the shared channel. And selecting a transmission path for performing the data sharing, and implementing data sharing with the at least one target terminal by the selected transmission path.
  • EPS Evolved Packet System
  • the application layer user identifier of the target terminal is obtained, and the application layer user identifier is mapped to the EPS.
  • the identification information that can be identified by the device is that the UE proximity relationship of the application layer is mapped to the EPS layer, so that the selection of the transmission path for data sharing can be conveniently implemented according to the identification information that the EPS device can identify and the resource availability of the shared channel. Data sharing is achieved according to the selected transmission path.
  • the EPS device may include: a user equipment (UE), an LTE (ie, a 4G access network part) device, and an EPC (Evolved Packet Core) device.
  • UE user equipment
  • LTE ie, a 4G access network part
  • EPC Evolved Packet Core
  • the determining the at least one target terminal specifically includes: determining, by the terminal, the at least one target terminal autonomously; and/or the terminal interacting with the network side device to determine The at least one target terminal.
  • the terminal may determine the target terminal for data sharing in two ways, that is, determine the autonomously, or perform the determination by interacting with the network side device.
  • the interaction with the network side device is performed to map the application layer user identifier of the at least one target terminal to the identification information that the EPS device can recognize.
  • the method before selecting the transmission path, further includes: determining whether the proximity information of the at least one target terminal has been acquired; performing, when determining that the proximity information of the at least one target terminal has been acquired, performing And the step of selecting the transmission path; and determining whether the application layer user identifier of the at least one target terminal and the EPS device are identifiable according to whether the terminal acquires the proximity information of the at least one target terminal Identifying information, and/or performing a D2D discovery process according to the number of the at least one target terminal to acquire proximity information of the at least one target terminal.
  • the operation of selecting the transmission path may be performed; if the proximity information of the at least one target terminal is not acquired, Then you need to perform the discovery process.
  • the step of performing the D2D discovery process may specifically be as follows:
  • Solution 1 If the terminal has acquired the application layer user identifier of the at least one target terminal and the identifier information that the EPS device can identify, the application layer user identifier and the EPS device according to the at least one target terminal The identifiable identification information transmits a discovery message to the at least one target terminal to perform the D2D discovery process. After the application layer user identifier of the target terminal and the identification information that the EPS device can identify, the discovery message may be sent in a targeted manner to perform the D2D discovery process.
  • Solution 2 If the terminal has acquired the application layer user identifier of the at least one target terminal and the identification information that the EPS device can identify, and the number of the at least one target terminal is less than or equal to a predetermined number, The application layer user identifier of the at least one target terminal and the identification information that the EPS device can identify send a discovery message to the at least one target terminal to perform the D2D discovery process. In this solution, if the number of target terminals is small, the discovery message can be directed to reduce signaling and avoid unnecessary signal reception and transmission.
  • a discovery message is broadcasted to perform the D2D discovery process.
  • the method further includes: determining, according to a transmission characteristic of the wireless transmission layer of the terminal, whether the data transmission needs to be performed in one direction or in two directions; and performing one-way execution when determining that the data transmission needs to be performed in one direction; The D2D discovery process; and triggers a two-way D2D discovery process when it is determined that the data transfer needs to be performed in both directions.
  • the wireless transmission layer does not need to support connection-oriented, it can be performed in one direction, and the sender terminal only needs to consider sending to the receiver terminal without performing ACK (acknowledgement), and the unidirectional discovery process can be directly adopted;
  • the transport layer needs to support connection-oriented, then ACK is required, and data transmission needs to be performed in both directions.
  • the UE needs to trigger the two-way discovery process.
  • the identifier information that the EPS device can identify includes: background information of the user equipment maintained by the Prose device (such as D2D discovery and communication authorization information); and user equipment capability information saved by the mobility management entity. (UE capability), user equipment status (UE state) information, serving cell information; priority information of the user equipment saved by the home user server (such as whether a WLAN-based D2D path is preferred, user priority information, etc.); carrier frequency setting information of the terminal direct communication (eg, Whether to use the dedicated carrier frequency, etc.).
  • background information of the user equipment maintained by the Prose device such as D2D discovery and communication authorization information
  • user equipment capability information saved by the mobility management entity such as D2D discovery and communication authorization information
  • UE capability user equipment status (UE state) information, serving cell information
  • priority information of the user equipment saved by the home user server such as whether a WLAN-based D2D path is preferred, user priority information, etc.
  • carrier frequency setting information of the terminal direct communication eg, Whether to use the dedicated carrier frequency, etc.
  • the transmission path includes: an Infra-path (hereinafter referred to as IP) of an infrastructure mode, an eNB-routed path (hereinafter referred to as EP), and a user equipment.
  • IP Infra-path
  • EP eNB-routed path
  • UE-relayed path (UEP) cellular-based direct path with dedicated channel (CDPD), cellular-based direct path (cellular-based direct path) With co-channel (hereinafter referred to as CDPC), WLAN-based direct path for devices with WLAN access capability (hereinafter referred to as WP).
  • CDPD dedicated channel
  • WP WLAN-based direct path for devices with WLAN access capability
  • the step of selecting a transmission path for performing data sharing according to the identifier information that the EPS device can identify and the resource availability of the shared channel includes:
  • the EPS device Determining, according to the identification information that the EPS device can identify, status information of the at least one target terminal, and selecting the transmission path according to the status information and resource availability of the shared channel, where the status information includes at least one of the following or Combination of multiple: current location information (such as serving base station information, relationship with the current UE's serving cell), idle (Idle) state or connected state, mobility information, WLAN-related terminal capability information (If there is no WLAN interface, etc.).
  • current location information such as serving base station information, relationship with the current UE's serving cell
  • Idle idle
  • mobility information such as Wi-related terminal capability information (If there is no WLAN interface, etc.).
  • FIG. 2 is a schematic block diagram of a data sharing apparatus based on terminal direct communication suitable for a terminal according to an embodiment of the present invention.
  • the data sharing apparatus 200 for terminal-based direct connection communication applicable to a terminal includes: a determining unit 202, configured to determine at least one target terminal that needs to perform data sharing; and an obtaining unit 204 An application layer user identifier for acquiring the at least one target terminal; a mapping unit 206, configured to map an application layer user identifier of the at least one target terminal to identifier information that can be recognized by the EPS device; and a selecting unit 208, configured to: Selecting a transmission path for performing the data sharing according to the identifier information that can be identified by the EPS device and the resource availability of the shared channel; the processing unit 210 is configured to select by the selecting unit 208 The selected transmission path enables data sharing with the at least one target terminal.
  • the application layer user identifier of the target terminal is obtained, and the application layer user identifier is mapped to the EPS.
  • the identification information that can be identified by the device is that the UE proximity relationship of the application layer is mapped to the EPS layer, so that the selection of the transmission path for data sharing can be conveniently implemented according to the identification information that the EPS device can identify and the resource availability of the shared channel. Data sharing is achieved according to the selected transmission path.
  • the EPS device may include: a user equipment (UE), an LTE (ie, a 4G access network part) device, and an EPC (Evolved Packet Core) device.
  • UE user equipment
  • LTE ie, a 4G access network part
  • EPC Evolved Packet Core
  • the determining unit 202 is specifically configured to: determine, by the terminal, the at least one target terminal autonomously; and/or the terminal interacts with the network side device to determine the at least A target terminal.
  • the terminal may determine the target terminal for data sharing in two ways, that is, determine the autonomously, or perform the determination by interacting with the network side device.
  • the mapping unit 206 is specifically configured to: interact with the network side device to map the application layer user identifier of the at least one target terminal to the identification information that the EPS device can identify. .
  • the method further includes: a determining unit 212, configured to determine, before the selecting unit selects the transmission path, whether the terminal has acquired proximity information of the at least one target terminal;
  • the unit 208 is specifically configured to perform an operation of selecting the transmission path when the determining unit 212 determines that the terminal has acquired the proximity information of the at least one target terminal;
  • the processing unit 210 is further configured to: When the determining unit 212 determines that the terminal does not acquire the neighboring information of the at least one target terminal, according to whether the terminal acquires the application layer user identifier of the at least one target terminal and the identifier information that the EPS device can recognize, and And performing a D2D discovery process according to the number of the at least one target terminal to acquire proximity information of the at least one target terminal.
  • the operation of selecting the transmission path may be performed; If the proximity information of at least one target terminal is not obtained, the discovery process needs to be performed.
  • the operation unit 210 performing the D2D discovery process may have the following solutions:
  • Solution 1 If the terminal has acquired the application layer user identifier of the at least one target terminal and the identifier information that the EPS device can identify, the application layer user identifier and the EPS device according to the at least one target terminal The identifiable identification information transmits a discovery message to the at least one target terminal to perform the D2D discovery process. After the application layer user identifier of the target terminal and the identification information that the EPS device can identify, the discovery message may be sent in a targeted manner to perform the D2D discovery process.
  • Solution 2 If the terminal has acquired the application layer user identifier of the at least one target terminal and the identification information that the EPS device can identify, and the number of the at least one target terminal is less than or equal to a predetermined number, The application layer user identifier of the at least one target terminal and the identification information that the EPS device can identify send a discovery message to the at least one target terminal to perform the D2D discovery process. In this solution, if the number of target terminals is small, the discovery message can be directed to reduce signaling and avoid unnecessary signal reception and transmission.
  • a discovery message is broadcasted to perform the D2D discovery process.
  • the processing unit 210 is further configured to: determine, according to a transmission characteristic of the wireless transmission layer of the terminal, whether the data transmission needs to be performed in one direction or in two directions; In progress, a one-way D2D discovery process is performed; and a two-way D2D discovery process is triggered when it is determined that the data transmission needs to be performed in both directions.
  • the wireless transmission layer does not need to support connection-oriented, it can be performed in one direction, and the sender terminal only needs to consider sending to the receiver terminal without performing ACK (acknowledgement), and the unidirectional discovery process can be directly adopted;
  • the transport layer needs to support connection-oriented, then ACK is required, and data transmission needs to be performed in both directions.
  • the UE needs to trigger the two-way discovery process.
  • the identifier information that the EPS device can identify includes: background information of the user equipment maintained by the Prose device (such as D2D discovery and communication authorization information); and user equipment capability information saved by the mobility management entity. (UE capability), user equipment state (UE state) information, serving cell information; priority of user equipment saved by the home subscriber server Level information (such as whether WLAN-based D2D path is preferred, user priority information, etc.); carrier frequency setting information for terminal direct communication (such as whether to use dedicated carrier frequency, etc.).
  • background information of the user equipment maintained by the Prose device such as D2D discovery and communication authorization information
  • user equipment capability information saved by the mobility management entity such as D2D discovery and communication authorization information
  • UE capability user equipment capability
  • UE state user equipment state
  • serving cell information serving cell information
  • priority of user equipment saved by the home subscriber server Level information such as whether WLAN-based D2D path is preferred, user priority information, etc.
  • carrier frequency setting information for terminal direct communication such as whether to use dedicated carrier frequency, etc.
  • the transmission path includes: an Infra-path (hereinafter referred to as IP) of an infrastructure mode, an eNB-routed path (hereinafter referred to as EP), and a user equipment.
  • IP Infra-path
  • EP eNB-routed path
  • UE-relayed path (UEP) cellular-based direct path with dedicated channel (CDPD), cellular-based direct path (cellular-based direct path) With co-channel (hereinafter referred to as CDPC), WLAN-based direct path for devices with WLAN access capability (hereinafter referred to as WP).
  • CDPD dedicated channel
  • WP WLAN-based direct path for devices with WLAN access capability
  • the selecting, by the selecting unit 208, the operation of selecting the transmission path according to the identifier information that can be identified by the EPS device and the resource availability of the shared channel specifically includes: being identifiable according to the EPS device. Identifying information, determining status information of the at least one target terminal, and selecting the transmission path according to the status information and resource availability of the shared channel, the status information comprising a combination of at least one or more of the following: current Location information (such as serving base station information, relationship with the current UE's serving cell), idle (Idle) state or connected state, mobility information, WLAN-related terminal capability information (if there is no WLAN interface) Wait).
  • current Location information such as serving base station information, relationship with the current UE's serving cell
  • Idle idle
  • WLAN-related terminal capability information if there is no WLAN interface
  • the present invention also proposes a terminal (not shown), comprising: a data sharing device 200 based on terminal direct connection communication as shown in FIG. 2.
  • the technical solution of the present invention is mainly directed to how to enhance the proximity relationship of the UE maintained by the application layer to adapt to the D2D data sharing under the framework of the existing 3GPP D2D communication and discovery mechanism, and perform the application layer. Mapping to the EPS level to determine the communication mode and path of D2D data sharing based on the mapping results.
  • the preparation steps for D2D data sharing are mainly performed at the application level.
  • the UE itself determines the target UE or the target UE group for data sharing by itself interacting with a network side entity such as a D2D/ProSe application server.
  • the UE itself determines that the shared object is suitable for the data sharing content completely by the UE.
  • the scheme in which the UE interacts with the network side D2D/ProSe application server is applicable to the UE not knowing the complete information to determine the target UE or the target UE group. For example, if a user wants to share the multimedia data to a user group, but the information of the group member is likely to be maintained on the network side, the network side entity needs to acquire the target UE or the target UE group.
  • the scheme of using the state information of the members of the network side maintenance group can avoid the problem of excessive maintenance signaling caused by maintaining information on the terminal side. At the same time, maintaining this information on the network side is more conducive to protecting the privacy of users.
  • the network side maintains the group member information, and does not exclude that the UE can acquire the object information of the data sharing at one time to avoid unnecessary multiple acquisitions during the duration of the data sharing.
  • the network side entity may also include other entities that support data sharing, and the entity needs to be able to interpret the D2D/ProSe ALUID (Application Layer User ID) to interact with the ProSe application server.
  • D2D/ProSe ALUID Application Layer User ID
  • the preparation step of the D2D data sharing may need to be implemented by modifying the PC1 interface message between the ProSe application server and the UE.
  • the UE maps the ALUID to a UE identity that the EPS entity can interpret by interacting with a corresponding network entity, including but not limited to a ProSe application server.
  • the UE identifier that the EPS can interpret is used to collect UE related information in each network element of the EPS, including but not limited to:
  • UE background information maintained at the ProSe device including authorization information of D2D discovery and communication; UE capability information at the MME (Mobility Management Entity), UE setting status information, serving cell information (serving cell of connected mode UE)
  • HSS Home Subscriber Server
  • the UE's discovery and communication resource configuration including resource allocation mode; resource allocation status of the eNB.
  • the UE may need to trigger a specific D2D discovery process when determining the target UE or the target user group.
  • the target UE or the target user group has the proximity information already available, there is no need to trigger the D2D discovery process.
  • D2D discovery for a particular target is triggered instead of a broadcast passive discovery.
  • This discovery can reduce signaling and avoid unnecessary Discovery signal reception and transmission.
  • active discovery can be performed one by one; if there are many members in the group, broadcast passive discovery can be adopted.
  • the technical solution of the present invention can also determine whether to support bidirectional discovery and reachability detection of the bidirectional channel according to the assumption of data sharing on the underlying (radio transmission layer) transmission characteristics.
  • the unidirectional discovery process can be directly adopted by the 3GPP, and the ACK is required if the bottom layer needs to support the connection-oriented connection.
  • Data transmission needs to be performed in both directions, and the UE needs to trigger two-way discovery.
  • Example signaling flow of bidirectional discovery As shown in FIG. 3, after UE1 and ProSe application server determine that bidirectional discovery is required, UE1 announces a bidirectional indication request to the ProSe device, and the ProSe device announces the result of the authorization request to UE1, and further between UE2 and the base station.
  • the request and permission of the discovery resource may be performed between the UE1 and the base station, and then the discovery signal may be transmitted between the UE1 and the UE2.
  • request and response information can be transmitted between the UE1 and the ProSe device and between the UE2 and the ProSe device as necessary.
  • the discovery process can determine the reachability of the communication, the communication path for data sharing can be selected according to the result of the compatibility. Otherwise, the reachability of the communication needs to be determined again, which requires the synchronization process of the air interface and the RACH process of the MAC layer.
  • the transmission path of the D2D data sharing needs to be determined.
  • the available communication paths include but are not limited to:
  • CDPD cellular-based direct path with dedicated channel
  • CDPD dedicated channel direct path based on the cellular network
  • CDPC shared channel direct path
  • WLAN-based direct path for devices with WLAN access capability a direct path of a WLAN-based device with wireless access capability, referred to as WP.
  • the method of determining the selected communication path may be considered but not limited to the following factors:
  • the current location of the target UE such as the serving base station information, and the relationship with the current UE's serving cell
  • UE mobility information such as high mobility, medium mobility or low mobility mobility, mobility history information or mobile tracking prediction information, etc.
  • WLAN-related terminal capability information such as the presence or absence of a WLAN interface
  • Method 1 If there is a reachable WLAN path between UEs, and the user preference of the UE is WLAN priority, select WP (ie, path f) above; otherwise, select cellular-based D2D path (D2D communication path based on cellular network) .
  • Method 2 If two UEs are under different serving cells and there is no direct communication resource allocation, and the base station does not support routing of D2D communication, select Infra-path (ie, path a)); if the base station supports D2D communication For the route, select the eNB-routed path (ie path b) above).
  • Method three if two UEs are under different serving cells, but have direct communication Resource allocation, according to the distance between the UEs, whether it is necessary to use the relay node to complete multi-hop transmission of D2D data or direct inter-terminal communication.
  • Method 4 if two UEs are under the same serving cell but have no direct communication resource allocation, it may be determined according to the distance between the UEs whether the relay node is required to complete multi-hop transmission of D2D data or direct inter-terminal communication, or Forwarding of D2D traffic is achieved by means of base station routing.
  • the above technical solution of the present invention enables D2D data sharing to be able to better support D2D data sharing by means of an enhanced D2D discovery mechanism and mapping the UE neighbor relationship of the application layer to the EPS layer.
  • the technical solution of the present invention is described in detail above with reference to the accompanying drawings.
  • the present invention provides a new data sharing scheme for terminal-based direct connection communication, which can reduce the impact on the RAN side technical specifications as much as possible. Ensure better D2D data sharing.
  • FIG. 5 shows a schematic structural diagram of a terminal according to an embodiment of the present invention.
  • the terminal in the embodiment of the present invention may include at least one network interface 503, at least one processor 501, such as a CPU, a memory 504, and at least one communication bus 502.
  • the processor 501 may be based on the combination shown in FIG. A data sharing device for direct communication of terminals.
  • the communication bus 502 is configured to implement connection communication between the network interface 503, the memory 504, and the processor 501.
  • the network interface 503 may include a standard wired interface or a wireless interface (such as a WI-FI interface).
  • the network interface 503 is configured to acquire an application layer user identifier of at least one target terminal.
  • the network interface 503 is further configured to implement data sharing with the at least one target terminal.
  • the above memory 504 may be a high speed RAM memory or a non-volatile memory such as a disk memory.
  • the memory 504 stores a set of program codes, and the processor 501 calls the program code stored in the memory 504 for performing the following operations:
  • the EPS device According to the identification information that the EPS device can identify and the resource availability of the shared channel, Selecting a transmission path for performing the data sharing, and implementing data sharing with the at least one target terminal by the selected transmission path.
  • the processor 501 determines the at least one target terminal, which specifically includes:
  • the processor 501 interacts with the network side device by using the network interface to map an application layer user identifier of the at least one target terminal to the identifier information that the EPS device can identify. .
  • the method further includes:
  • the processor 501 preferably performs the D2D discovery process, which specifically includes:
  • the application layer user identifier of the at least one target terminal and the EPS device can identify
  • the identification information sends a discovery message to the at least one target terminal to perform the D2D discovery process
  • the terminal has acquired the application layer user identifier of the at least one target terminal and the identification information that the EPS device can identify, and the number of the at least one target terminal is less than or equal to a predetermined number, according to the at least one Sending a discovery message to the at least one target terminal by using an application layer user identifier of the target terminal and the identification information that the EPS device can identify to perform The D2D discovery process; and/or
  • a discovery message is broadcasted to perform the D2D discovery process.
  • the method further includes:
  • a two-way D2D discovery process is triggered when it is determined that the data transfer needs to be performed in both directions.
  • the identifier information that the EPS device can identify includes:
  • the background information of the user equipment maintained by the Prose device The background information of the user equipment maintained by the Prose device; the user equipment capability information saved by the mobility management entity, the user equipment status information, the serving cell information, the priority information of the user equipment saved by the home user server, and the carrier frequency setting of the terminal direct communication information.
  • the transmission path includes:
  • Infrastructure mode D2D path base station routing path, user equipment relay path, cellular network based dedicated channel direct path, cellular based and shared channel direct path, WLAN based direct path with wireless access capable device.
  • the processor 501 selects a transmission path for performing data sharing according to the identifier information that the EPS device can identify and the resource availability of the shared channel, and specifically includes:
  • the EPS device Determining, according to the identification information that the EPS device can identify, status information of the at least one target terminal, and selecting the transmission path according to the status information and resource availability of the shared channel, where the status information includes at least one of the following or Multiple combinations: current location information, idle state or connection status, mobility information, WLAN-related terminal capability information.
  • terminal introduced in the embodiment of the present invention may be used to implement some or all of the processes in the method embodiment introduced in conjunction with FIG. 1 or FIG.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本发明提供了一种基于终端直连通信的数据共享方法、装置和终端，其中，基于终端直连通信的数据共享方法，包括：确定需要进行数据共享的至少一个目标终端，并获取所述至少一个目标终端的应用层用户标识；将所述至少一个目标终端的应用层用户标识映射为EPS设备能够识别的标识信息；根据所述EPS设备能够识别的标识信息和共享信道的资源可用性，选择用于进行所述数据共享的传输路径，并通过选择的所述传输路径实现与所述至少一个目标终端的数据共享。本发明的技术方案可以在尽可能降低对RAN侧技术规范影响的前提下，确保实现更优的D2D数据共享。

Description

基于终端直连通信的数据共享方法、装置和终端
本申请要求于2015年03月16日提交中国专利局，申请号为201510114528.6、发明名称为“基于终端直连通信的数据共享方法、装置和终端”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
本发明涉及通信技术领域，具体而言，涉及一种基于终端直连通信的数据共享方法、一种基于终端直连通信的数据共享装置和一种终端。
背景技术
随着移动终端的软硬件技术和无线通信技术的发展，终端直连通信技术(Device to Device，即D2D，是3GPP引入的终端直接通信的技术，允许用户数据传输不经过蜂窝网络的基础设施)逐渐成为一种重要的技术点。D2D技术主要包括D2D discovery(即发现阶段)和D2D communication(即通信阶段)，D2D discovery与D2D communication是独立的业务，D2D communication允许两个UE直接通过特定的信道(sidelink channel)直接进行数据的发送和传输，而无需经过基站的传输。
基于D2D技术来实现数据共享是一个重要的应用场景。但是目前3GPP已经定义的D2D技术是基于广播式无连接的通信机制，在D2D发现方面，只能支持单向的发现，尚且不能很好地支持基于D2D技术的数据共享。同时，目前基于动态拓扑发现的机制，需要引入D2D终端的测量和汇报机制，需要在UE和eNB(基站)之间引入一定复杂度的运算机制，该机制的实质是在RAN(Radio Access Network，无线接入网)侧引入UE间的拓扑信息关系。
可见，现有技术中存在以下缺陷导致不能支持D2D数据共享：首先，UE的邻近关系维护在应用层，无法与支持数据共享的通信路径进行关联；其次，邻近关系是基于单向的发现机制，通过这种发现机制只能确定UE的位置关系，并不能确定两个UE间是否可以进行D2D通信。
因此，如何能够在尽可能降低对RAN侧技术规范影响的前提下，确保更优地实现D2D数据共享成为亟待解决的技术问题。
发明内容
本发明正是基于上述技术问题至少之一，提出了一种新的适用于终端的基于终端直连通信的数据共享方案，可以在尽可能降低对RAN侧技术规范影响的前提下，确保实现更优的D2D数据共享。
有鉴于此，本发明提出了一种适用于终端的基于终端直连通信的数据共享方法，包括：确定需要进行数据共享的至少一个目标终端，并获取所述至少一个目标终端的应用层用户标识；将所述至少一个目标终端的应用层用户标识映射为EPS(Evolved Packet System，演进的分组系统)设备能够识别的标识信息；根据所述EPS设备能够识别的标识信息和共享信道的资源可用性，选择用于进行所述数据共享的传输路径，并通过选择的所述传输路径实现与所述至少一个目标终端的数据共享。
在该技术方案中，由于现有技术中的UE邻近关系维护在应用层，无法与支持数据共享的通信路径关联，因此通过获取目标终端的应用层用户标识，并将应用层用户标识映射为EPS设备能够识别的标识信息，即将应用层的UE邻近关系映射到EPS层，使得可以根据EPS设备能够识别的标识信息和共享信道的资源可用性方便地实现对进行数据共享的传输路径的选择，进而能够根据选择出的传输路径实现数据共享。
其中，EPS设备可以包括：UE(User Equipment，用户设备)、LTE(即4G接入网部分)设备和EPC(Evolved Packet Core，演进的分组核心网)设备。
在上述技术方案中，优选地，确定所述至少一个目标终端的步骤具体包括：由所述终端自主确定所述至少一个目标终端；和/或所述终端通过与网络侧设备进行交互，以确定所述至少一个目标终端。具体地，终端可以通过两种方式来确定进行数据共享的目标终端，即自主确定，或者通过与网络侧设备的交互来进行确定。
在上述技术方案中，优选地，通过与网络侧设备进行交互，以将所述 至少一个目标终端的应用层用户标识映射为所述EPS设备能够识别的标识信息。
在上述技术方案中，优选地，在选择所述传输路径之前，还包括：判断是否已获取所述至少一个目标终端的邻近信息；在判定已获取所述至少一个目标终端的邻近信息时，执行选择所述传输路径的步骤；以及在判定未获取所述至少一个目标终端的邻近信息时，根据所述终端是否获取了所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息，和/或根据所述至少一个目标终端的数量执行D2D发现过程，以获取所述至少一个目标终端的邻近信息。
在该技术方案中，若已经获取了至少一个目标终端的邻近信息，说明终端与目标终端已经执行了发现过程，则可以执行选择传输路径的操作；若未获取到至少一个目标终端的邻近信息，则需要执行发现过程。
其中，执行所述D2D发现过程的步骤具体可以有如下方案：
方案一：若所述终端已获取了所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息，则根据所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息向所述至少一个目标终端发送发现消息，以执行所述D2D发现过程。该方案中在获知了目标终端的应用层用户标识和EPS设备能够识别的标识信息之后，可以定向发送发现消息，以执行D2D发现过程。
方案二：若所述终端已获取了所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息，且所述至少一个目标终端的数量小于或等于预定数量，则根据所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息向所述至少一个目标终端发送发现消息，以执行所述D2D发现过程。该方案中若目标终端的数量较少，则可以定向发送发现消息，以减少信令和避免不必要的信号接收与发送。
此外，若所述至少一个目标终端的数量大于预定数量，则广播发现消息，以执行所述D2D发现过程。
在上述技术方案中，优选地，还包括：根据所述终端的无线传输层的传输特性确定数据传输是需要单向进行或是需要双向进行；在确定数据传 输需要单向进行时，执行单向的D2D发现过程；以及在确定数据传输需要双向进行时，触发双向的D2D发现过程。具体地，若无线传输层不需要支持面向连接，可以单向进行，发送方终端仅需考虑向接收方终端发送而无需进行ACK(acknowledgement，确认)，则可以直接采用单向发现过程；若无线传输层需要支持面向连接，则需要进行ACK，数据传输需要双向进行，则需要UE触发双向发现过程。
在上述技术方案中，优选地，所述EPS设备能够识别的标识信息包括：Prose设备维护的用户设备的背景信息(如D2D发现和通信的授权信息)；移动性管理实体保存的用户设备能力信息(UE capability)、用户设备状态(UE state)信息、服务小区信息；归属用户服务器保存的用户设备的优先级信息(如是否优选WLAN-based D2D路径，用户的优先级信息等)；终端直连通信的载频设置信息(如是否优先使用专用载频等)。
在上述技术方案中，优选地，所述传输路径包括：基础架构模式的D2D路径(Infra-path，以下简称为IP)、基站路由路径(eNB-routed path，以下简称为EP)、用户设备的中继路径(UE relayed path，以下简称URP)、基于蜂窝网络的专用信道直接路径(cellular-based direct path with dedicated channel，以下简称CDPD)、基于蜂窝网络与共享信道直接路径(cellular-based direct path with co-channel，以下简称CDPC)、基于WLAN的具有无线接入能力设备的直接路径(WLAN-based direct path for devices with WLAN access capability，以下简称WP)。
在上述技术方案中，优选地，根据所述EPS设备能够识别的标识信息和所述共享信道的资源可用性，选择用于进行数据共享的传输路径的步骤包括：
根据所述EPS设备能够识别的标识信息，确定所述至少一个目标终端的状态信息，并根据所述状态信息和共享信道的资源可用性选择所述传输路径，所述状态信息包括以下至少之一或多个的组合：当前所处的位置信息(如服务基站信息、与当前UE的服务小区的关系)、空闲(Idle)状态或连接(connected)状态、移动性信息、与WLAN相关的终端能力信息(如有无WLAN接口等)。
根据本发明的第二方面，还提出了一种适用于终端的基于终端直连通信的数据共享装置，包括：确定单元，用于确定需要进行数据共享的至少一个目标终端；获取单元，用于获取所述至少一个目标终端的应用层用户标识；映射单元，用于将所述至少一个目标终端的应用层用户标识映射为EPS设备能够识别的标识信息；选择单元，用于根据所述EPS设备能够识别的标识信息和共享信道的资源可用性，选择用于进行所述数据共享的传输路径；处理单元，用于通过所述选择单元选择的所述传输路径实现与所述至少一个目标终端的数据共享。
在该技术方案中，由于现有技术中的UE邻近关系维护在应用层，无法与支持数据共享的通信路径关联，因此通过获取目标终端的应用层用户标识，并将应用层用户标识映射为EPS设备能够识别的标识信息，即将应用层的UE邻近关系映射到EPS层，使得可以根据EPS设备能够识别的标识信息和共享信道的资源可用性方便地实现对进行数据共享的传输路径的选择，进而能够根据选择出的传输路径实现数据共享。
其中，EPS设备可以包括：UE(User Equipment，用户设备)、LTE(即4G接入网部分)设备和EPC(Evolved Packet Core，演进的分组核心网)设备。
在上述技术方案中，优选地，所述确定单元具体用于：由所述终端自主确定所述至少一个目标终端；和/或所述终端通过与网络侧设备进行交互，以确定所述至少一个目标终端。具体地，终端可以通过两种方式来确定进行数据共享的目标终端，即自主确定，或者通过与网络侧设备的交互来进行确定。
在上述技术方案中，优选地，所述映射单元具体用于：通过与网络侧设备进行交互，以将所述至少一个目标终端的应用层用户标识映射为所述EPS设备能够识别的标识信息。
在上述技术方案中，优选地，还包括：判断单元，用于在所述选择单元选择所述传输路径之前，判断所述终端是否已获取所述至少一个目标终端的邻近信息；所述选择单元具体用于，在所述判断单元判定所述终端已获取所述至少一个目标终端的邻近信息时，执行选择所述传输路径的操作； 所述处理单元还用于，在所述判断单元判定所述终端未获取所述至少一个目标终端的邻近信息时，根据所述终端是否获取了所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息，和/或根据所述至少一个目标终端的数量执行D2D发现过程，以获取所述至少一个目标终端的邻近信息。
在该技术方案中，若已经获取了至少一个目标终端的邻近信息，说明终端与目标终端已经执行了发现过程，则可以执行选择传输路径的操作；若未获取到至少一个目标终端的邻近信息，则需要执行发现过程。
其中，所述处理单元执行所述D2D发现过程的操作可以有如下方案：
方案一：若所述终端已获取了所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息，则根据所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息向所述至少一个目标终端发送发现消息，以执行所述D2D发现过程。该方案中在获知了目标终端的应用层用户标识和EPS设备能够识别的标识信息之后，可以定向发送发现消息，以执行D2D发现过程。
方案二：若所述终端已获取了所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息，且所述至少一个目标终端的数量小于或等于预定数量，则根据所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息向所述至少一个目标终端发送发现消息，以执行所述D2D发现过程。该方案中若目标终端的数量较少，则可以定向发送发现消息，以减少信令和避免不必要的信号接收与发送。
此外，若所述至少一个目标终端的数量大于预定数量，则广播发现消息，以执行所述D2D发现过程。
在上述技术方案中，优选地，所述处理单元还用于：根据所述终端的无线传输层的传输特性确定数据传输是需要单向进行或是需要双向进行；在确定数据传输需要单向进行时，执行单向的D2D发现过程；以及在确定数据传输需要双向进行时，触发双向的D2D发现过程。具体地，若无线传输层不需要支持面向连接，可以单向进行，发送方终端仅需考虑向接收方终端发送而无需进行ACK(acknowledgement，确认)，则可以直接采用单 向发现过程；若无线传输层需要支持面向连接，则需要进行ACK，数据传输需要双向进行，则需要UE触发双向发现过程。
在上述技术方案中，优选地，所述EPS设备能够识别的标识信息包括：Prose设备维护的用户设备的背景信息(如D2D发现和通信的授权信息)；移动性管理实体保存的用户设备能力信息(UE capability)、用户设备状态(UE state)信息、服务小区信息；归属用户服务器保存的用户设备的优先级信息(如是否优选WLAN-based D2D路径，用户的优先级信息等)；终端直连通信的载频设置信息(如是否优先使用专用载频等)。
在上述技术方案中，优选地，所述传输路径包括：基础架构模式的D2D路径(Infra-path，以下简称为IP)、基站路由路径(eNB-routed path，以下简称为EP)、用户设备的中继路径(UE relayed path，以下简称URP)、基于蜂窝网络的专用信道直接路径(cellular-based direct path with dedicated channel，以下简称CDPD)、基于蜂窝网络与共享信道直接路径(cellular-based direct path with co-channel，以下简称CDPC)、基于WLAN的具有无线接入能力设备的直接路径(WLAN-based direct path for devices with WLAN access capability，以下简称WP)。
在上述技术方案中，优选地，所述选择单元根据所述EPS设备能够识别的标识信息和共享信道的资源可用性选择所述传输路径的操作具体包括：根据所述EPS设备能够识别的标识信息，确定所述至少一个目标终端的状态信息，并根据所述状态信息和所述共享信道的资源可用性选择所述传输路径，所述状态信息包括以下至少之一或多个的组合：当前所处的位置信息(如服务基站信息、与当前UE的服务小区的关系)、空闲(Idle)状态或连接(connected)状态、移动性信息、与WLAN相关的终端能力信息(如有无WLAN接口等)。
根据本发明的第三方面，还提出了一种终端，包括通信总线、网络接口、存储器以及处理器，其中：
所述通信总线，用于实现所述网络接口、存储器以及处理器之间的连接通信；
所述网络接口，用于获取至少一个目标终端的应用层用户标识；
所述网络接口，还用于实现与所述至少一个目标终端的数据共享；
所述存储器中存储一组程序代码，且处理器调用存储器中存储的程序代码，用于执行以下操作：
确定需要进行数据共享的至少一个目标终端，并通过所述网络接口获取所述至少一个目标终端的应用层用户标识；
将所述至少一个目标终端的应用层用户标识映射为EPS设备能够识别的标识信息；
根据所述EPS设备能够识别的标识信息和共享信道的资源可用性，选择用于进行所述数据共享的传输路径，并通过选择的所述传输路径实现与所述至少一个目标终端的数据共享。
在上述技术方案中，优选地，所述处理器确定所述至少一个目标终端，具体包括：
自主确定所述至少一个目标终端；和/或
通过所述网络接口与网络侧设备进行交互，以确定所述至少一个目标终端。
在上述技术方案中，优选地，所述处理器通过所述网络接口与网络侧设备进行交互，以将所述至少一个目标终端的应用层用户标识映射为所述EPS设备能够识别的标识信息。
在上述技术方案中，优选地，在所述处理器选择所述传输路径之前，还包括：
判断是否已获取所述至少一个目标终端的邻近信息；
在判定已获取所述至少一个目标终端的邻近信息时，执行选择所述传输路径的步骤；以及
在判定未获取所述至少一个目标终端的邻近信息时，根据所述终端是否获取了所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息，和/或根据所述至少一个目标终端的数量执行D2D发现过程，以获取所述至少一个目标终端的邻近信息。
在上述技术方案中，优选地，所述处理器执行所述D2D发现过程，具体包括：
若所述终端已获取了所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息，则根据所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息向所述至少一个目标终端发送发现消息，以执行所述D2D发现过程；或
若所述终端已获取了所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息，且所述至少一个目标终端的数量小于或等于预定数量，则根据所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息向所述至少一个目标终端发送发现消息，以执行所述D2D发现过程；和/或
若所述至少一个目标终端的数量大于预定数量，则广播发现消息，以执行所述D2D发现过程。
在上述技术方案中，优选地，还包括：
根据所述终端的无线传输层的传输特性确定数据传输是需要单向进行或是需要双向进行；
在确定数据传输需要单向进行时，执行单向的D2D发现过程；以及
在确定数据传输需要双向进行时，触发双向的D2D发现过程。
在上述技术方案中，优选地，所述EPS设备能够识别的标识信息包括：
Prose设备维护的用户设备的背景信息；移动性管理实体保存的用户设备能力信息、用户设备状态信息、服务小区信息；归属用户服务器保存的用户设备的优先级信息；终端直连通信的载频设置信息。
在上述技术方案中，优选地，所述传输路径包括：
基础架构模式的D2D路径、基站路由路径、用户设备的中继路径、基于蜂窝网络的专用信道直接路径、基于蜂窝网络与共享信道直接路径、基于WLAN的具有无线接入能力设备的直接路径。
在上述技术方案中，优选地，所述处理器根据所述EPS设备能够识别的标识信息和所述共享信道的资源可用性，选择用于进行数据共享的传输路径，具体包括：
根据所述EPS设备能够识别的标识信息，确定所述至少一个目标终端的状态信息，并根据所述状态信息和所述共享信道的资源可用性选择所述 传输路径，所述状态信息包括以下至少之一或多个的组合：当前所处的位置信息、空闲状态或连接状态、移动性信息、与WLAN相关的终端能力信息。
通过以上技术方案，可以在尽可能降低对RAN侧技术规范影响的前提下，确保实现更优的D2D数据共享。
附图说明
图1示出了根据本发明的实施例的适用于终端的基于终端直连通信的数据共享方法的示意流程图；
图2示出了根据本发明的实施例的适用于终端的基于终端直连通信的数据共享装置的示意框图；
图3示出了根据本发明的实施例的双向发现过程中的信令交互流程示意图；
图4示出了根据本发明的实施例的基于D2D通信的数据共享的通信路径的示意图；
图5示出了根据本发明的实施例的终端的结构示意图。
具体实施方式
为了能够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实施例的适用于终端的基于终端直连通信的数据共享方法的示意流程图。
如图1所示，根据本发明的实施例的适用于终端的基于终端直连通信的数据共享方法，包括：步骤102，确定需要进行数据共享的至少一个目标终端，并获取所述至少一个目标终端的应用层用户标识；步骤104，将 所述至少一个目标终端的应用层用户标识映射为EPS(Evolved Packet System，演进的分组系统)设备能够识别的标识信息；步骤106，根据所述EPS设备能够识别的标识信息和共享信道的资源可用性，选择用于进行所述数据共享的传输路径，并通过选择的所述传输路径实现与所述至少一个目标终端的数据共享。
在该技术方案中，由于现有技术中的UE邻近关系维护在应用层，无法与支持数据共享的通信路径关联，因此通过获取目标终端的应用层用户标识，并将应用层用户标识映射为EPS设备能够识别的标识信息，即将应用层的UE邻近关系映射到EPS层，使得可以根据EPS设备能够识别的标识信息和共享信道的资源可用性方便地实现对进行数据共享的传输路径的选择，进而能够根据选择出的传输路径实现数据共享。
其中，EPS设备可以包括：UE(User Equipment，用户设备)、LTE(即4G接入网部分)设备和EPC(Evolved Packet Core，演进的分组核心网)设备。
在上述技术方案中，优选地，确定所述至少一个目标终端的步骤具体包括：由所述终端自主确定所述至少一个目标终端；和/或所述终端通过与网络侧设备进行交互，以确定所述至少一个目标终端。具体地，终端可以通过两种方式来确定进行数据共享的目标终端，即自主确定，或者通过与网络侧设备的交互来进行确定。
在上述技术方案中，优选地，通过与网络侧设备进行交互，以将所述至少一个目标终端的应用层用户标识映射为所述EPS设备能够识别的标识信息。
在上述技术方案中，优选地，在选择所述传输路径之前，还包括：判断是否已获取所述至少一个目标终端的邻近信息；在判定已获取所述至少一个目标终端的邻近信息时，执行选择所述传输路径的步骤；以及在判定未获取所述至少一个目标终端的邻近信息时，根据所述终端是否获取了所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息，和/或根据所述至少一个目标终端的数量执行D2D发现过程，以获取所述至少一个目标终端的邻近信息。
在该技术方案中，若已经获取了至少一个目标终端的邻近信息，说明终端与目标终端已经执行了发现过程，则可以执行选择传输路径的操作；若未获取到至少一个目标终端的邻近信息，则需要执行发现过程。
其中，执行所述D2D发现过程的步骤具体可以有如下方案：
方案一：若所述终端已获取了所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息，则根据所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息向所述至少一个目标终端发送发现消息，以执行所述D2D发现过程。该方案中在获知了目标终端的应用层用户标识和EPS设备能够识别的标识信息之后，可以定向发送发现消息，以执行D2D发现过程。
方案二：若所述终端已获取了所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息，且所述至少一个目标终端的数量小于或等于预定数量，则根据所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息向所述至少一个目标终端发送发现消息，以执行所述D2D发现过程。该方案中若目标终端的数量较少，则可以定向发送发现消息，以减少信令和避免不必要的信号接收与发送。
此外，若所述至少一个目标终端的数量大于预定数量，则广播发现消息，以执行所述D2D发现过程。
在上述技术方案中，优选地，还包括：根据所述终端的无线传输层的传输特性确定数据传输是需要单向进行或是需要双向进行；在确定数据传输需要单向进行时，执行单向的D2D发现过程；以及在确定数据传输需要双向进行时，触发双向的D2D发现过程。具体地，若无线传输层不需要支持面向连接，可以单向进行，发送方终端仅需考虑向接收方终端发送而无需进行ACK(acknowledgement，确认)，则可以直接采用单向发现过程；若无线传输层需要支持面向连接，则需要进行ACK，数据传输需要双向进行，则需要UE触发双向发现过程。
在上述技术方案中，优选地，所述EPS设备能够识别的标识信息包括：Prose设备维护的用户设备的背景信息(如D2D发现和通信的授权信息)；移动性管理实体保存的用户设备能力信息(UE capability)、用户设备状态 (UE state)信息、服务小区信息；归属用户服务器保存的用户设备的优先级信息(如是否优选WLAN-based D2D路径，用户的优先级信息等)；终端直连通信的载频设置信息(如是否优先使用专用载频等)。
在上述技术方案中，优选地，所述传输路径包括：基础架构模式的D2D路径(Infra-path，以下简称为IP)、基站路由路径(eNB-routed path，以下简称为EP)、用户设备的中继路径(UE relayed path，以下简称URP)、基于蜂窝网络的专用信道直接路径(cellular-based direct path with dedicated channel，以下简称CDPD)、基于蜂窝网络与共享信道直接路径(cellular-based direct path with co-channel，以下简称CDPC)、基于WLAN的具有无线接入能力设备的直接路径(WLAN-based direct path for devices with WLAN access capability，以下简称WP)。
在上述技术方案中，优选地，根据所述EPS设备能够识别的标识信息和所述共享信道的资源可用性，选择用于进行数据共享的传输路径的步骤包括：
根据所述EPS设备能够识别的标识信息，确定所述至少一个目标终端的状态信息，并根据所述状态信息和共享信道的资源可用性选择所述传输路径，所述状态信息包括以下至少之一或多个的组合：当前所处的位置信息(如服务基站信息、与当前UE的服务小区的关系)、空闲(Idle)状态或连接(connected)状态、移动性信息、与WLAN相关的终端能力信息(如有无WLAN接口等)。
图2示出了根据本发明的实施例的适用于终端的基于终端直连通信的数据共享装置的示意框图。
如图2所示，根据本发明的实施例的适用于终端的基于终端直连通信的数据共享装置200，包括：确定单元202，用于确定需要进行数据共享的至少一个目标终端；获取单元204，用于获取所述至少一个目标终端的应用层用户标识；映射单元206，用于将所述至少一个目标终端的应用层用户标识映射为EPS设备能够识别的标识信息；选择单元208，用于根据所述EPS设备能够识别的标识信息和共享信道的资源可用性，选择用于进行所述数据共享的传输路径；处理单元210，用于通过所述选择单元208选 择的所述传输路径实现与所述至少一个目标终端的数据共享。
在该技术方案中，由于现有技术中的UE邻近关系维护在应用层，无法与支持数据共享的通信路径关联，因此通过获取目标终端的应用层用户标识，并将应用层用户标识映射为EPS设备能够识别的标识信息，即将应用层的UE邻近关系映射到EPS层，使得可以根据EPS设备能够识别的标识信息和共享信道的资源可用性方便地实现对进行数据共享的传输路径的选择，进而能够根据选择出的传输路径实现数据共享。
其中，EPS设备可以包括：UE(User Equipment，用户设备)、LTE(即4G接入网部分)设备和EPC(Evolved Packet Core，演进的分组核心网)设备。
在上述技术方案中，优选地，所述确定单元202具体用于：由所述终端自主确定所述至少一个目标终端；和/或所述终端通过与网络侧设备进行交互，以确定所述至少一个目标终端。具体地，终端可以通过两种方式来确定进行数据共享的目标终端，即自主确定，或者通过与网络侧设备的交互来进行确定。
在上述技术方案中，优选地，所述映射单元206具体用于：通过与网络侧设备进行交互，以将所述至少一个目标终端的应用层用户标识映射为所述EPS设备能够识别的标识信息。
在上述技术方案中，优选地，还包括：判断单元212，用于在所述选择单元选择所述传输路径之前，判断所述终端是否已获取所述至少一个目标终端的邻近信息；所述选择单元208具体用于，在所述判断单元212判定所述终端已获取所述至少一个目标终端的邻近信息时，执行选择所述传输路径的操作；所述处理单元210还用于，在所述判断单元212判定所述终端未获取所述至少一个目标终端的邻近信息时，根据所述终端是否获取了所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息，和/或根据所述至少一个目标终端的数量执行D2D发现过程，以获取所述至少一个目标终端的邻近信息。
在该技术方案中，若已经获取了至少一个目标终端的邻近信息，说明终端与目标终端已经执行了发现过程，则可以执行选择传输路径的操作； 若未获取到至少一个目标终端的邻近信息，则需要执行发现过程。
其中，所述处理单元210执行所述D2D发现过程的操作可以有如下方案：
方案一：若所述终端已获取了所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息，则根据所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息向所述至少一个目标终端发送发现消息，以执行所述D2D发现过程。该方案中在获知了目标终端的应用层用户标识和EPS设备能够识别的标识信息之后，可以定向发送发现消息，以执行D2D发现过程。
方案二：若所述终端已获取了所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息，且所述至少一个目标终端的数量小于或等于预定数量，则根据所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息向所述至少一个目标终端发送发现消息，以执行所述D2D发现过程。该方案中若目标终端的数量较少，则可以定向发送发现消息，以减少信令和避免不必要的信号接收与发送。
此外，若所述至少一个目标终端的数量大于预定数量，则广播发现消息，以执行所述D2D发现过程。
在上述技术方案中，优选地，所述处理单元210还用于：根据所述终端的无线传输层的传输特性确定数据传输是需要单向进行或是需要双向进行；在确定数据传输需要单向进行时，执行单向的D2D发现过程；以及在确定数据传输需要双向进行时，触发双向的D2D发现过程。具体地，若无线传输层不需要支持面向连接，可以单向进行，发送方终端仅需考虑向接收方终端发送而无需进行ACK(acknowledgement，确认)，则可以直接采用单向发现过程；若无线传输层需要支持面向连接，则需要进行ACK，数据传输需要双向进行，则需要UE触发双向发现过程。
在上述技术方案中，优选地，所述EPS设备能够识别的标识信息包括：Prose设备维护的用户设备的背景信息(如D2D发现和通信的授权信息)；移动性管理实体保存的用户设备能力信息(UE capability)、用户设备状态(UE state)信息、服务小区信息；归属用户服务器保存的用户设备的优先 级信息(如是否优选WLAN-based D2D路径，用户的优先级信息等)；终端直连通信的载频设置信息(如是否优先使用专用载频等)。
在上述技术方案中，优选地，所述传输路径包括：基础架构模式的D2D路径(Infra-path，以下简称为IP)、基站路由路径(eNB-routed path，以下简称为EP)、用户设备的中继路径(UE relayed path，以下简称URP)、基于蜂窝网络的专用信道直接路径(cellular-based direct path with dedicated channel，以下简称CDPD)、基于蜂窝网络与共享信道直接路径(cellular-based direct path with co-channel，以下简称CDPC)、基于WLAN的具有无线接入能力设备的直接路径(WLAN-based direct path for devices with WLAN access capability，以下简称WP)。
在上述技术方案中，优选地，所述选择单元208根据所述EPS设备能够识别的标识信息和所述共享信道的资源可用性选择所述传输路径的操作具体包括：根据所述EPS设备能够识别的标识信息，确定所述至少一个目标终端的状态信息，并根据所述状态信息和所述共享信道的资源可用性选择所述传输路径，所述状态信息包括以下至少之一或多个的组合：当前所处的位置信息(如服务基站信息、与当前UE的服务小区的关系)、空闲(Idle)状态或连接(connected)状态、移动性信息、与WLAN相关的终端能力信息(如有无WLAN接口等)。
本发明还提出了一种终端(图中未示出)，包括：如图2所示的基于终端直连通信的数据共享装置200。
具体来说，本发明的技术方案主要是针对如何在现有3GPP的D2D通信和发现机制的框架下，实现把应用层维护的UE邻近关系增强以适配D2D数据共享的需求，并进行应用层到EPS层面的映射，以根据映射结果来确定D2D数据共享的通信方式和路径。
本发明的技术方案主要包括以下三个方面：
1、D2D数据共享的准备步骤，主要在应用层面进行。
UE自身或者通过与网络侧实体如D2D/ProSe应用服务器的交互，确定数据共享的目标UE或目标UE群组。
具体地，UE自身确定共享对象的方案适合于数据共享内容完全由UE 自己决定的场景，比如，某一个手机用户把手机里存储的多媒体资料分享给其他用户。
UE与网络侧D2D/ProSe应用服务器交互的方案适用于UE自身不掌握完整的信息来确定目标UE或者目标UE群组。比如，如果一个用户要把多媒体资料分享给一个用户组，但组成员的信息很可能维护在网络侧，则需要与网络侧实体进行获取目标UE或目标UE群组。
其中，采用网络侧维护组成员的状态信息的方案可以避免在终端侧维护信息时导致的维护信令过多的问题。同时，网络侧维护这些信息更有利于保护用户的隐私。网络侧维护组成员信息，不排除UE可以一次性获取数据共享的对象信息以便在数据共享持续期间避免不必要的多次获取。
网络侧实体也可以包括支持数据共享的其他实体，该实体需要能够解读D2D/ProSe的ALUID(Application layer User ID，应用层用户标识)，以便与ProSe应用服务器进行交互。
D2D数据共享的准备步骤可能需要修改ProSe应用服务器与UE间的PC1接口消息来实现。
2、标识映射与目标终端在EPS的位置和RAN信息查询。
UE通过与相应的网络实体(包括但不限于ProSe应用服务器)的交互，以将ALUID映射为EPS实体能够解读的UE标识。而EPS能解读的UE标识被用于收集在EPS各网元的UE相关信息，包括但不限于：
1)相对静态的信息，如：
ProSe设备处维护的UE背景信息，包括D2D发现和通信的授权信息；MME(Mobility Management Entity，移动性管理实体)处的UE能力信息，UE设置状态信息，服务小区信息(serving cell of connected mode UE)；HSS(Home Subscriber Server，归属用户服务器)上保存的UE优先权信息，包括是否优选WLAN-based D2D路径，用户的优先级信息如VIP等；终端直连通信的载频设置信息，如是否优先使用专用载频(Dedicated carrier)信息等，也可能是针对某些用户组。
2)比较动态的信息，包括但不限于：
UE的发现和通信资源配置，包括资源分配模式；eNB的资源配置状况。
同时，UE在确定目标UE或目标用户群时，可能需要触发特定的D2D发现过程。
具体地，如果目标UE或者目标用户群的proximity information(邻近信息)已经有了，就不需要触发D2D发现过程。
如果proximity information还未获取，但是目标UE的应用层标识和EPS标识已经获知，则触发针对特定目标的D2D发现，而不是广播式的被动发现。这种发现能够减少信令和避免不必要的Discovery信号接收与发送。当然，若D2D群组的成员数量不多，也可以逐一进行主动发现；如果组成员较多，则可以采用广播式的被动发现。
此外，本发明的技术方案还可以根据数据共享对底层(无线传输层)传输特性的假设，确定是否要支持双向发现以及双向信道的可达性检测。
具体地，如果底层不需要支持面向连接，可以单向进行，发端只考虑向收端发送不需要ACK，那么可以直接采用3GPP已经定义的单向发现过程；如果底层需要支持面向连接，需要ACK，数据传输需要双向进行，则需要UE触发双向发现。双向发现的示例信令流程如图3所示，UE1和ProSe应用服务器确定需要进行双向发现后，UE1向ProSe设备宣布双向指示请求，ProSe设备向UE1宣布授权请求的结果，进而UE2与基站之间、UE1与基站之间可以进行发现资源的请求和许可，之后UE1和UE2之间可以进行发现信号的传输。此外，必要时UE1与ProSe设备之间、UE2与ProSe设备之间可以发送请求和响应信息。
如果发现过程可以确定通信的可达性，可以根据proximity结果选择用于数据共享的通信路径，否则，还需要再次确定通信的可达性，这需要借助空口的同步过程和MAC层的RACH过程。
3、用于数据共享的通信路径的选择过程。
根据上述步骤中的标识映射结果，需要对D2D数据共享的传输路径进行确定。
其中，可供选择的通信路径包括但不限于：
a)Infra-path，基础架构模式的D2D路径，简称为IP，具体如图4中所示的路径1；
b)eNB-routed path，基站路由路径，简称为EP，具体如图4中所示的路径2；
c)UE relayed path，用户设备的中继路径，简称为URP，具体如图4中所示的路径4；
d)cellular-based direct path with dedicated channel，基于蜂窝网络的专用信道直接路径，简称为CDPD，具体如图4中所示的路径3；
e)cellular-based direct path with co-channel，基于蜂窝网络与共享信道直接路径，简称为CDPC，具体如图4中所示的路径3；
f)WLAN-based direct path for devices with WLAN access capability，基于WLAN的具有无线接入能力设备的直接路径，简称为WP。
确定选择的通信路径的方法，可以考虑但不限于以下因素：
1)目标UE当前所处的位置，如服务基站信息、与当前UE的服务小区的关系；
2)UE的状态信息，即Idle(空闲)或connected(连接)。
3)UE的移动性信息，如高(high mobility)、中(medium mobility)或低(low mobility)移动性，移动性历史信息或移动跟踪预测信息等；
4)与WLAN相关的终端能力信息，如有无WLAN接口等；
5)共享资源的可用性，即如果采用与宏网络共享资源，是采用单跳直通还是经过一次中转，以及与干扰和资源空分复用的关系。如果是专用通道，则不考虑宏网络，只评估UE间的D2D干扰。
以下列举几种具体的选择通信路径的方法：
方法一：如果UE间存在可达的WLAN路径，且UE的用户偏好为WLAN优先，则选择WP(即上述的路径f))；否则选择cellular-based D2D path(基于蜂窝网络的D2D通信路径)。
方法二：如果两个UE处于不同的服务小区之下且没有直接通信的资源分配，且基站不支持D2D通信的路由，则选择Infra-path(即上述的路径a))；如果基站支持D2D通信的路由，则选择eNB-routed path(即上述的路径b))。
方法三，如果两个UE处于不同的服务小区之下，但是有直接通信的 资源分配，可以根据UE间的距离确定是否需要借助中继节点来完成D2D数据的多跳发送或者终端间直通。
方法四，如果两个UE处于同一个服务小区之下，但是没有直接通信的资源分配，可以根据UE间的距离确定是否需要借助中继节点来完成D2D数据的多跳发送或者终端间直通，或者借助基站路由来实现D2D流量的转发。
本发明的上述技术方案使得D2D数据共享能够借助于增强的D2D发现机制，并将应用层的UE邻近关系映射到EPS层，实现了更好地支持D2D数据共享。
以上结合附图详细说明了本发明的技术方案，本发明提出了一种新的适用于终端的基于终端直连通信的数据共享方案，可以在尽可能降低对RAN侧技术规范影响的前提下，确保实现更优的D2D数据共享。
图5示出了根据本发明的实施例的终端的结构示意图。如图5所示，本发明实施例中的终端可以包括至少一个网络接口503，至少一个处理器501，例如CPU，存储器504和至少一个通信总线502，处理器501可以结合图2所示的基于终端直连通信的数据共享装置。
其中，所述通信总线502，用于实现所述网络接口503、存储器504以及处理器501之间的连接通信；
其中，上述网络接口503可以包括标准的有线接口或者无线接口(如WI-FI接口)。所述网络接口503，用于获取至少一个目标终端的应用层用户标识。所述网络接口503，还用于实现与所述至少一个目标终端的数据共享。
上述存储器504可以是高速RAM存储器，也可为非易失性的存储器(non-volatile memory)，例如磁盘存储器。所述存储器504中存储一组程序代码，且处理器501调用存储器504中存储的程序代码，用于执行以下操作：
确定需要进行数据共享的至少一个目标终端，并通过所述网络接口获取所述至少一个目标终端的应用层用户标识；
将所述至少一个目标终端的应用层用户标识映射为EPS设备能够识别的标识信息；
根据所述EPS设备能够识别的标识信息和共享信道的资源可用性，选 择用于进行所述数据共享的传输路径，并通过选择的所述传输路径实现与所述至少一个目标终端的数据共享。
在上述技术方案中，优选地，所述处理器501确定所述至少一个目标终端，具体包括：
自主确定所述至少一个目标终端；和/或
通过所述网络接口与网络侧设备进行交互，以确定所述至少一个目标终端。
在上述技术方案中，优选地，所述处理器501通过所述网络接口与网络侧设备进行交互，以将所述至少一个目标终端的应用层用户标识映射为所述EPS设备能够识别的标识信息。
在上述技术方案中，优选地，在所述处理器501选择所述传输路径之前，还包括：
判断是否已获取所述至少一个目标终端的邻近信息；
在判定已获取所述至少一个目标终端的邻近信息时，执行选择所述传输路径的步骤；以及
在判定未获取所述至少一个目标终端的邻近信息时，根据所述终端是否获取了所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息，和/或根据所述至少一个目标终端的数量执行D2D发现过程，以获取所述至少一个目标终端的邻近信息。
在上述技术方案中，优选地，所述处理器501执行所述D2D发现过程，具体包括：
若所述终端已获取了所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息，则根据所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息向所述至少一个目标终端发送发现消息，以执行所述D2D发现过程；或
若所述终端已获取了所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息，且所述至少一个目标终端的数量小于或等于预定数量，则根据所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息向所述至少一个目标终端发送发现消息，以执行 所述D2D发现过程；和/或
若所述至少一个目标终端的数量大于预定数量，则广播发现消息，以执行所述D2D发现过程。
在上述技术方案中，优选地，还包括：
根据所述终端的无线传输层的传输特性确定数据传输是需要单向进行或是需要双向进行；
在确定数据传输需要单向进行时，执行单向的D2D发现过程；以及
在确定数据传输需要双向进行时，触发双向的D2D发现过程。
在上述技术方案中，优选地，所述EPS设备能够识别的标识信息包括：
Prose设备维护的用户设备的背景信息；移动性管理实体保存的用户设备能力信息、用户设备状态信息、服务小区信息；归属用户服务器保存的用户设备的优先级信息；终端直连通信的载频设置信息。
在上述技术方案中，优选地，所述传输路径包括：
基础架构模式的D2D路径、基站路由路径、用户设备的中继路径、基于蜂窝网络的专用信道直接路径、基于蜂窝网络与共享信道直接路径、基于WLAN的具有无线接入能力设备的直接路径。
在上述技术方案中，优选地，所述处理器501根据所述EPS设备能够识别的标识信息和所述共享信道的资源可用性，选择用于进行数据共享的传输路径，具体包括：
根据EPS设备能够识别的标识信息，确定所述至少一个目标终端的状态信息，并根据所述状态信息和所述共享信道的资源可用性选择所述传输路径，所述状态信息包括以下至少之一或多个的组合：当前所处的位置信息、空闲状态或连接状态、移动性信息、与WLAN相关的终端能力信息。
具体的，本发明实施例中介绍的终端可以用以实施本发明结合图1或图3介绍的方法实施例中的部分或全部流程。
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 (27)

  1. 一种基于终端直连通信的数据共享方法，适用于终端，其特征在于，包括：
    确定需要进行数据共享的至少一个目标终端，并获取所述至少一个目标终端的应用层用户标识；
    将所述至少一个目标终端的应用层用户标识映射为EPS设备能够识别的标识信息；
    根据所述EPS设备能够识别的标识信息和共享信道的资源可用性，选择用于进行所述数据共享的传输路径，并通过选择的所述传输路径实现与所述至少一个目标终端的数据共享。
  2. 根据权利要求1所述的基于终端直连通信的数据共享方法，其特征在于，确定所述至少一个目标终端的步骤具体包括：
    由所述终端自主确定所述至少一个目标终端；和/或
    所述终端通过与网络侧设备进行交互，以确定所述至少一个目标终端。
  3. 根据权利要求1所述的基于终端直连通信的数据共享方法，其特征在于，通过与网络侧设备进行交互，以将所述至少一个目标终端的应用层用户标识映射为所述EPS设备能够识别的标识信息。
  4. 根据权利要求1所述的基于终端直连通信的数据共享方法，其特征在于，在选择所述传输路径之前，还包括：
    判断是否已获取所述至少一个目标终端的邻近信息；
    在判定已获取所述至少一个目标终端的邻近信息时，执行选择所述传输路径的步骤；以及
    在判定未获取所述至少一个目标终端的邻近信息时，根据所述终端是否获取了所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息，和/或根据所述至少一个目标终端的数量执行D2D发现过程，以获取所述至少一个目标终端的邻近信息。
  5. 根据权利要求4所述的基于终端直连通信的数据共享方法，其特征在于，执行所述D2D发现过程的步骤具体包括：
    若所述终端已获取了所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息，则根据所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息向所述至少一个目标终端发送发现消息，以执行所述D2D发现过程；或
    若所述终端已获取了所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息，且所述至少一个目标终端的数量小于或等于预定数量，则根据所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息向所述至少一个目标终端发送发现消息，以执行所述D2D发现过程；和/或
    若所述至少一个目标终端的数量大于预定数量，则广播发现消息，以执行所述D2D发现过程。
  6. 根据权利要求4所述的基于终端直连通信的数据共享方法，其特征在于，还包括：
    根据所述终端的无线传输层的传输特性确定数据传输是需要单向进行或是需要双向进行；
    在确定数据传输需要单向进行时，执行单向的D2D发现过程；以及
    在确定数据传输需要双向进行时，触发双向的D2D发现过程。
  7. 根据权利要求3所述的基于终端直连通信的数据共享方法，其特征在于，所述EPS设备能够识别的标识信息包括：
    Prose设备维护的用户设备的背景信息；移动性管理实体保存的用户设备能力信息、用户设备状态信息、服务小区信息；归属用户服务器保存的用户设备的优先级信息；终端直连通信的载频设置信息。
  8. 根据权利要求1至7中任一项所述的基于终端直连通信的数据共享方法，其特征在于，所述传输路径包括：
    基础架构模式的D2D路径、基站路由路径、用户设备的中继路径、基于蜂窝网络的专用信道直接路径、基于蜂窝网络与共享信道直接路径、基于WLAN的具有无线接入能力设备的直接路径。
  9. 根据权利要求1至7中任一项所述的基于终端直连通信的数据共享方法，其特征在于，根据所述EPS设备能够识别的标识信息和所述共享信 道的资源可用性，选择用于进行数据共享的传输路径的步骤包括：
    根据所述EPS设备能够识别的标识信息，确定所述至少一个目标终端的状态信息，并根据所述状态信息和所述共享信道的资源可用性选择所述传输路径，所述状态信息包括以下至少之一或多个的组合：当前所处的位置信息、空闲状态或连接状态、移动性信息、与WLAN相关的终端能力信息。
  10. 一种基于终端直连通信的数据共享装置，适用于终端，其特征在于，包括：
    确定单元，用于确定需要进行数据共享的至少一个目标终端；
    获取单元，用于获取所述至少一个目标终端的应用层用户标识；
    映射单元，用于将所述至少一个目标终端的应用层用户标识映射为EPS设备能够识别的标识信息；
    选择单元，用于根据所述EPS设备能够识别的标识信息和共享信道的资源可用性，选择用于进行所述数据共享的传输路径；
    处理单元，用于通过所述选择单元选择的所述传输路径实现与所述至少一个目标终端的数据共享。
  11. 根据权利要求10所述的基于终端直连通信的数据共享装置，其特征在于，所述确定单元具体用于：
    由所述终端自主确定所述至少一个目标终端；和/或
    所述终端通过与网络侧设备进行交互，以确定所述至少一个目标终端。
  12. 根据权利要求10所述的基于终端直连通信的数据共享装置，其特征在于，所述映射单元具体用于：
    通过与网络侧设备进行交互，以将所述至少一个目标终端的应用层用户标识映射为所述EPS设备能够识别的标识信息。
  13. 根据权利要求10所述的基于终端直连通信的数据共享装置，其特征在于，还包括：
    判断单元，用于在所述选择单元选择所述传输路径之前，判断所述终端是否已获取所述至少一个目标终端的邻近信息；
    所述选择单元具体用于，在所述判断单元判定所述终端已获取所述至 少一个目标终端的邻近信息时，执行选择所述传输路径的操作；
    所述处理单元还用于，在所述判断单元判定所述终端未获取所述至少一个目标终端的邻近信息时，根据所述终端是否获取了所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息，和/或根据所述至少一个目标终端的数量执行D2D发现过程，以获取所述至少一个目标终端的邻近信息。
  14. 根据权利要求13所述的基于终端直连通信的数据共享装置，其特征在于，所述处理单元执行所述D2D发现过程的操作具体包括：
    若所述终端已获取了所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息，则根据所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息向所述至少一个目标终端发送发现消息，以执行所述D2D发现过程；或
    若所述终端已获取了所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息，且所述至少一个目标终端的数量小于或等于预定数量，则根据所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息向所述至少一个目标终端发送发现消息，以执行所述D2D发现过程；和/或
    若所述至少一个目标终端的数量大于预定数量，则广播发现消息，以执行所述D2D发现过程。
  15. 根据权利要求13所述的基于终端直连通信的数据共享装置，其特征在于，所述处理单元还用于：
    根据所述终端的无线传输层的传输特性确定数据传输是需要单向进行或是需要双向进行；
    在确定数据传输需要单向进行时，执行单向的D2D发现过程；以及
    在确定数据传输需要双向进行时，触发双向的D2D发现过程。
  16. 根据权利要求12所述的基于终端直连通信的数据共享装置，其特征在于，所述EPS设备能够识别的标识信息包括：
    Prose设备维护的用户设备的背景信息；移动性管理实体保存的用户设备能力信息、用户设备状态信息、服务小区信息；归属用户服务器保存的 用户设备的优先级信息；终端直连通信的载频设置信息。
  17. 根据权利要求10至16中任一项所述的基于终端直连通信的数据共享装置，其特征在于，所述传输路径包括：
    基础架构模式的D2D路径、基站路由路径、用户设备的中继路径、基于蜂窝网络的专用信道直接路径、基于蜂窝网络与共享信道直接路径、基于WLAN的具有无线接入能力设备的直接路径。
  18. 根据权利要求10至16中任一项所述的基于终端直连通信的数据共享装置，其特征在于，所述选择单元根据所述EPS设备能够识别的标识信息和共享信道的资源可用性选择所述传输路径的操作具体包括：
    根据所述EPS设备能够识别的标识信息，确定所述至少一个目标终端的状态信息，并根据所述状态信息和所述共享信道的资源可用性选择所述传输路径，所述状态信息包括以下至少之一或多个的组合：当前所处的位置信息、空闲状态或连接状态、移动性信息、与WLAN相关的终端能力信息。
  19. 一种终端，其特征在于，包括通信总线、网络接口、存储器以及处理器，其中：
    所述通信总线，用于实现所述网络接口、存储器以及处理器之间的连接通信；
    所述网络接口，用于获取至少一个目标终端的应用层用户标识；
    所述网络接口，还用于实现与所述至少一个目标终端的数据共享；
    所述存储器中存储一组程序代码，且处理器调用存储器中存储的程序代码，用于执行以下操作：
    确定需要进行数据共享的至少一个目标终端，并通过所述网络接口获取所述至少一个目标终端的应用层用户标识；
    将所述至少一个目标终端的应用层用户标识映射为EPS设备能够识别的标识信息；
    根据所述EPS设备能够识别的标识信息和共享信道的资源可用性，选择用于进行所述数据共享的传输路径，并通过选择的所述传输路径实现与所述至少一个目标终端的数据共享。
  20. 根据权利要求19所述的终端，其特征在于，所述处理器确定所述至少一个目标终端，具体包括：
    自主确定所述至少一个目标终端；和/或
    通过所述网络接口与网络侧设备进行交互，以确定所述至少一个目标终端。
  21. 根据权利要求19所述的终端，其特征在于，所述处理器通过所述网络接口与网络侧设备进行交互，以将所述至少一个目标终端的应用层用户标识映射为所述EPS设备能够识别的标识信息。
  22. 根据权利要求19所述的终端，其特征在于，在所述处理器选择所述传输路径之前，还包括：
    判断是否已获取所述至少一个目标终端的邻近信息；
    在判定已获取所述至少一个目标终端的邻近信息时，执行选择所述传输路径的步骤；以及
    在判定未获取所述至少一个目标终端的邻近信息时，根据所述终端是否获取了所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息，和/或根据所述至少一个目标终端的数量执行D2D发现过程，以获取所述至少一个目标终端的邻近信息。
  23. 根据权利要求22所述的终端，其特征在于，所述处理器执行所述D2D发现过程，具体包括：
    若所述终端已获取了所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息，则根据所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息向所述至少一个目标终端发送发现消息，以执行所述D2D发现过程；或
    若所述终端已获取了所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息，且所述至少一个目标终端的数量小于或等于预定数量，则根据所述至少一个目标终端的应用层用户标识和所述EPS设备能够识别的标识信息向所述至少一个目标终端发送发现消息，以执行所述D2D发现过程；和/或
    若所述至少一个目标终端的数量大于预定数量，则广播发现消息，以 执行所述D2D发现过程。
  24. 根据权利要求22所述的终端，其特征在于，还包括：
    根据所述终端的无线传输层的传输特性确定数据传输是需要单向进行或是需要双向进行；
    在确定数据传输需要单向进行时，执行单向的D2D发现过程；以及
    在确定数据传输需要双向进行时，触发双向的D2D发现过程。
  25. 根据权利要求21所述的终端，其特征在于，所述EPS设备能够识别的标识信息包括：
    Prose设备维护的用户设备的背景信息；移动性管理实体保存的用户设备能力信息、用户设备状态信息、服务小区信息；归属用户服务器保存的用户设备的优先级信息；终端直连通信的载频设置信息。
  26. 根据权利要求19至25中任一项所述的终端，其特征在于，所述传输路径包括：
    基础架构模式的D2D路径、基站路由路径、用户设备的中继路径、基于蜂窝网络的专用信道直接路径、基于蜂窝网络与共享信道直接路径、基于WLAN的具有无线接入能力设备的直接路径。
  27. 根据权利要求19至25中任一项所述的终端，其特征在于，所述处理器根据所述EPS设备能够识别的标识信息和所述共享信道的资源可用性，选择用于进行数据共享的传输路径，具体包括：
    根据所述EPS设备能够识别的标识信息，确定所述至少一个目标终端的状态信息，并根据所述状态信息和所述共享信道的资源可用性选择所述传输路径，所述状态信息包括以下至少之一或多个的组合：当前所处的位置信息、空闲状态或连接状态、移动性信息、与WLAN相关的终端能力信息。
PCT/CN2015/080387 2015-03-16 2015-05-29 基于终端直连通信的数据共享方法、装置和终端 Ceased WO2016145735A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510114528.6 2015-03-16
CN201510114528.6A CN104768122B (zh) 2015-03-16 2015-03-16 基于终端直连通信的数据共享方法、装置和终端

Publications (1)

Publication Number Publication Date
WO2016145735A1 true WO2016145735A1 (zh) 2016-09-22

Family

ID=53649660

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/080387 Ceased WO2016145735A1 (zh) 2015-03-16 2015-05-29 基于终端直连通信的数据共享方法、装置和终端

Country Status (2)

Country Link
CN (1) CN104768122B (zh)
WO (1) WO2016145735A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111935852A (zh) * 2020-07-17 2020-11-13 广东以诺通讯有限公司 通信方法、终端和存储介质

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104768122B (zh) * 2015-03-16 2018-08-24 深圳酷派技术有限公司 基于终端直连通信的数据共享方法、装置和终端
CN112312314B (zh) * 2015-06-23 2024-06-25 交互数字专利控股公司 用于邻近服务通信的优先级处理
CN106454806B (zh) * 2015-08-11 2019-07-19 电信科学技术研究院 一种进行数据传输的方法和设备
CN106470449B (zh) * 2015-08-14 2020-04-10 电信科学技术研究院 一种数据收发、中继方法、装置及通信系统
CN106535332B (zh) * 2015-09-09 2020-05-05 中兴通讯股份有限公司 资源配置的传输方法及装置
WO2017049432A1 (zh) * 2015-09-21 2017-03-30 华为技术有限公司 一种数据传输方法及装置
WO2017193370A1 (zh) * 2016-05-13 2017-11-16 富士通株式会社 信息传输装置、方法以及通信系统
CN106550492B (zh) * 2016-10-27 2019-07-30 广东欧珀移动通信有限公司 一种移动终端之间数据转移的方法及移动终端
CN108271140B (zh) * 2017-11-13 2021-05-04 广东电网有限责任公司电力调度控制中心 一种适用于配用电业务的d2d双流无线网络接入方法
EP3832958A4 (en) * 2018-09-30 2021-09-15 Guangdong Oppo Mobile Telecommunications Corp., Ltd. COMMUNICATION PROCESS AND APPARATUS, AND COMMUNICATION DEVICE
CN111586675B (zh) 2019-02-15 2022-04-12 华为技术有限公司 一种终端装置识别方法及装置
CN112243223A (zh) * 2020-10-19 2021-01-19 深圳市中诺通讯有限公司 中心网络节点分配d2d通信的方法及设备
CN112291775A (zh) * 2020-10-19 2021-01-29 深圳市中诺通讯有限公司 终端获取业务的方法及设备
CN113059569A (zh) * 2021-04-09 2021-07-02 北京云迹科技有限公司 一种多端交互方法、装置及系统
CN114205792B (zh) * 2021-12-15 2026-01-09 西安中诺通讯有限公司 一种共享相机连接管理的方法
WO2023240574A1 (zh) * 2022-06-16 2023-12-21 北京小米移动软件有限公司 信息处理方法及装置、通信设备及存储介质

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130297718A1 (en) * 2012-05-07 2013-11-07 Samsung Electronics Co., Ltd. Server device, client device, data sharing system and method for sharing data between client device and server device thereof
WO2014130144A2 (en) * 2013-02-22 2014-08-28 Intel IP Corporation Targeted group-based device discovery for wireless communication devices
WO2014133631A1 (en) * 2013-03-01 2014-09-04 Intel IP Corporation Multicast-based group communications in ad hoc arrangements of wireless devices
CN104125620A (zh) * 2014-07-31 2014-10-29 宇龙计算机通信科技(深圳)有限公司 基于终端直连通信的中继选择的路由方法和路由方法
CN104768122A (zh) * 2015-03-16 2015-07-08 深圳酷派技术有限公司 基于终端直连通信的数据共享方法、装置和终端

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103686718A (zh) * 2012-08-31 2014-03-26 中兴通讯股份有限公司 D2d设备的身份标识处理方法及装置
CN103731830A (zh) * 2012-10-12 2014-04-16 中兴通讯股份有限公司 设备到设备通信的管理和校验方法、装置及系统
CN103929747A (zh) * 2013-01-16 2014-07-16 中兴通讯股份有限公司 D2d发现申请和d2d发现完成方法及对应装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130297718A1 (en) * 2012-05-07 2013-11-07 Samsung Electronics Co., Ltd. Server device, client device, data sharing system and method for sharing data between client device and server device thereof
WO2014130144A2 (en) * 2013-02-22 2014-08-28 Intel IP Corporation Targeted group-based device discovery for wireless communication devices
WO2014133631A1 (en) * 2013-03-01 2014-09-04 Intel IP Corporation Multicast-based group communications in ad hoc arrangements of wireless devices
CN104125620A (zh) * 2014-07-31 2014-10-29 宇龙计算机通信科技(深圳)有限公司 基于终端直连通信的中继选择的路由方法和路由方法
CN104768122A (zh) * 2015-03-16 2015-07-08 深圳酷派技术有限公司 基于终端直连通信的数据共享方法、装置和终端

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111935852A (zh) * 2020-07-17 2020-11-13 广东以诺通讯有限公司 通信方法、终端和存储介质

Also Published As

Publication number Publication date
CN104768122B (zh) 2018-08-24
CN104768122A (zh) 2015-07-08

Similar Documents

Publication Publication Date Title
WO2016145735A1 (zh) 基于终端直连通信的数据共享方法、装置和终端
US11209551B2 (en) Method and apparatus for wireless communication in wireless communication system
JP7013498B2 (ja) データスケジューリング方法、基地局およびシステム
KR102535139B1 (ko) 무선 통신 시스템에서 통신을 수행하는 방법 및 장치
CN110249667B (zh) 非3gpp接入上的终端接入5g网络的注册管理方法
ES2882473T3 (es) Seleccionar una entidad de función de plano de usuario (UPF) en una entidad de función de control de políticas (PCF) en base a la información de cambio de ubicación del terminal, proporcionada a partir de una entidad de función de gestión de sesión (SMF)
CN115460650B (zh) 基站、接入和移动性管理功能实体及其方法
KR102549946B1 (ko) 이동통신 환경에서 단말의 초기 접속 요청 메시지를 라우팅하는 방법 및 관련 파라미터
TWI602468B (zh) Terminal through the relay node to determine the use of methods and devices
JP2016521483A (ja) デバイス発見情報の受信方法、デバイス発見情報の送信方法及びユーザ機器
CN113785552B (zh) 会话管理功能选择
JP2020507982A (ja) 事前設定済みアクセスカテゴリに基づく、ネットワークスライシングを採用する通信システムへのアクセス
WO2015090057A1 (zh) 路由信息发送、接收的方法、装置及路由信息处理系统
CN104185299B (zh) 近距离通信方法、用户设备及移动管理实体
JP6554613B2 (ja) 通信装置
WO2014146474A1 (zh) 终端注册方法、终端发现方法、终端及装置
JP7549135B2 (ja) パス切り替えのための方法および装置
WO2015149463A1 (zh) D2d发现的处理方法及装置
JPWO2018061760A1 (ja) 無線端末及びネットワーク装置
US20240205814A1 (en) Network discovery and selection of accessing localized services
CN117296355A (zh) 用于有效处理服务/相邻小区信息的更新的方法和装置
WO2015083686A1 (ja) 通信制御方法、ユーザ端末及び基地局
WO2024037210A1 (zh) 广播安全通信的方法和装置
WO2026011876A1 (zh) 一种通信方法及装置
KR20130015963A (ko) 지능적 서비스를 제공하는 통합 기지국 장치 및 그 방법

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15885118

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 13/02/2018)

122 Ep: pct application non-entry in european phase

Ref document number: 15885118

Country of ref document: EP

Kind code of ref document: A1