WO2016145735A1 - Procédé, appareil et dispositif de partage de données d2d - Google Patents

Procédé, appareil et dispositif de partage de données d2d 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
Application number
PCT/CN2015/080387
Other languages
English (en)
Chinese (zh)
Inventor
雷艺学
张云飞
张晨璐
何成名
Original Assignee
宇龙计算机通信科技(深圳)有限公司
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 宇龙计算机通信科技(深圳)有限公司 filed Critical 宇龙计算机通信科技(深圳)有限公司
Publication of WO2016145735A1 publication Critical patent/WO2016145735A1/fr

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

L'invention concerne un procédé, appareil et dispositif de partage de données de dispositif à dispositif (D2D). Le procédé de partage de données D2D comprend les étapes consistant à: déterminer au moins un dispositif cible pour lequel l'exécution du partage de données est nécessaire et acquérir un identifiant d'utilisateur sur une couche d'application de l'au moins un dispositif cible; associer l'identifiant d'utilisateur sur la couche d'application avec l'au moins un dispositif cible avec les informations d'identification identifiables par un dispositif EPS; selon les informations d'identification identifiables par le dispositif EPS et la disponibilité de ressources d'un canal partagé, sélectionner un chemin de transmission utilisé pour partager les données, et partager les données avec l'au moins un dispositif cible par l'intermédiaire du trajet de transmission sélectionné. La solution technique de la présente invention assure un meilleur partage de données D2D, tout en réduisant un impact sur la spécification technique du côté réseau d'accès radio (RAN).
PCT/CN2015/080387 2015-03-16 2015-05-29 Procédé, appareil et dispositif de partage de données d2d WO2016145735A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
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
CN201510114528.6 2015-03-16

Publications (1)

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

Family

ID=53649660

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/080387 WO2016145735A1 (fr) 2015-03-16 2015-05-29 Procédé, appareil et dispositif de partage de données d2d

Country Status (2)

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

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 (15)

* 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
RU2694814C1 (ru) * 2015-06-23 2019-07-17 Интердиджитал Пейтент Холдингз, Инк. ОБРАБОТКА ПРИОРИТЕТОВ В СИСТЕМЕ СВЯЗИ ProSe
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 (fr) * 2015-09-21 2017-03-30 华为技术有限公司 Procédé et appareil de transmission de données
CN109076639A (zh) * 2016-05-13 2018-12-21 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
AU2018443613B2 (en) * 2018-09-30 2022-04-07 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Communication method 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
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
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
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
CN117597957A (zh) * 2022-06-16 2024-02-23 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 (fr) * 2013-02-22 2014-08-28 Intel IP Corporation Recherche de dispositif basée sur un groupe ciblé pour des dispositifs de communication sans fil
WO2014133631A1 (fr) * 2013-03-01 2014-09-04 Intel IP Corporation Communications de groupe basées sur la multidiffusion dans des arrangements ad hoc de dispositifs sans fil
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 (fr) * 2013-02-22 2014-08-28 Intel IP Corporation Recherche de dispositif basée sur un groupe ciblé pour des dispositifs de communication sans fil
WO2014133631A1 (fr) * 2013-03-01 2014-09-04 Intel IP Corporation Communications de groupe basées sur la multidiffusion dans des arrangements ad hoc de dispositifs sans fil
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
CN104768122A (zh) 2015-07-08
CN104768122B (zh) 2018-08-24

Similar Documents

Publication Publication Date Title
WO2016145735A1 (fr) Procédé, appareil et dispositif de partage de données d2d
US11209551B2 (en) Method and apparatus for wireless communication in wireless communication system
KR102535139B1 (ko) 무선 통신 시스템에서 통신을 수행하는 방법 및 장치
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
EP3552414B1 (fr) Procédé et appareil pour sélectionner une fonction de gestion d'accès et de mobilité dans un système de communication mobile
TWI602468B (zh) Terminal through the relay node to determine the use of methods and devices
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)
CN115460650A (zh) 基站、接入和移动性管理功能实体及其方法
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
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
WO2015090057A1 (fr) Procédé et dispositif pour transmettre et recevoir des informations de routage, et système de traitement d'informations de routage
WO2014146474A1 (fr) Procédé d'enregistrement de terminal, procédé de découverte de terminal, terminal et dispositif
JP6554613B2 (ja) 通信装置
US9713179B2 (en) Configuration of layer-1 destination address for device-to-device communications
WO2015149463A1 (fr) Procédé et appareil de traitement pour découverte d2d
JP2023542294A (ja) パス切り替えのための方法および装置
WO2015083686A1 (fr) Procédé de commande de communication, terminal d'utilisateur, et station de base
JPWO2018061760A1 (ja) 無線端末及びネットワーク装置
WO2024037210A1 (fr) Procédé et appareil de communication de sécurité de diffusion
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
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