WO2016107205A1 - 中继通信的数据传输方法和装置 - Google Patents

中继通信的数据传输方法和装置 Download PDF

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Publication number
WO2016107205A1
WO2016107205A1 PCT/CN2015/089061 CN2015089061W WO2016107205A1 WO 2016107205 A1 WO2016107205 A1 WO 2016107205A1 CN 2015089061 W CN2015089061 W CN 2015089061W WO 2016107205 A1 WO2016107205 A1 WO 2016107205A1
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Prior art keywords
network relay
relay
network
tmgi
service
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PCT/CN2015/089061
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English (en)
French (fr)
Inventor
许辉
马子江
王亚英
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中兴通讯股份有限公司
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Publication of WO2016107205A1 publication Critical patent/WO2016107205A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup

Definitions

  • This application relates to, but is not limited to, the field of communications.
  • the public safety network is based on 3GPP standards, such as LTE, the user can communicate anywhere in the public or commercial 3GPP network. This expands the area of action and communication capabilities that can be covered. Moreover, since these networks are based on the same open standards, there is no longer an incompatibility issue.
  • 3GPP standards and technologies also enables public safety agencies to share information with a wider audience, whether they are operators, other agencies, volunteers, or experts.
  • Mobile broadband makes it possible to use a variety of data services such as maps, building plans and video materials, which greatly enhances the voice communication. This approach is more flexible because data becomes as easy as voice communication; people can access the same information from an office computer, a car laptop, or a mobile phone in the field.
  • D2D communication refers to direct communication between adjacent devices, such as Bluetooth. Due to lack of network management, D2D communication generally uses an unlicensed spectrum, such as 2.4 GHz. With the rapid spread of smartphones, many new applications have emerged, such as location-based applications, social applications, and so on. In a mobile communication network, communication between user equipments must be carried out through the network, even if the two devices are located in close proximity, because the network operator needs to control the licensed spectrum. When the communication parties use the licensed spectrum for communication, they must Through the network, to achieve network scheduling, billing and management of communication activities.
  • FIG. 1 is a schematic diagram of a network in which a neighboring device directly communicates in the related art.
  • the schematic diagram shown in FIG. 1 is intended to reduce the network load, the 3GPP proposes the direct communication of the neighboring device, and the D2D has the functions of broadcast communication and relay communication. Therefore, the D2D technology in the public safety communication has a natural advantage.
  • the related technology has found that when the UE is outside the network coverage, the UE cannot communicate with the application server because there is no network signal, and thus cannot receive the service data.
  • the present invention provides a data transmission method and apparatus for relay communication, which solves the problem of how to acquire data of a service when the UE is located outside the network coverage.
  • a data transmission method for relay communication comprising: when a user equipment UE is located outside a network coverage area, the UE discovers that the user equipment relays a UE-to-network relay; and the UE sends the UE-to-Network relay Sending a request message; the UE receives a response message sent by the UE-to-Network relay; and the UE receives the service data forwarded by the UE-to-Network relay.
  • the UE discovers the user equipment to the network relay UE-to-network relay, and the method includes: the UE receives the broadcast information sent by the UE-to-Network relay, and discovers the UE-to-Network according to the broadcast information.
  • the UE sends the query request information of the UE-to-Network relay, receives the query response information of the UE-to-Network relay, and discovers the UE-to-Network relay according to the query response information.
  • the UE sends a request message to the UE-to-Network relay, where the UE establishes a radio resource control RRC connection with the UE-to-Network relay through the PC5 interface, and sends the RRC connection to the UE through the RRC connection.
  • the -to-Network relay sends the request message.
  • the response message includes a service identifier.
  • the response message includes: a valid time and/or an address identifier, where the valid time is a control signaling and/or forwarding data sent by the UE-to-Network relay on the active time monitoring network side.
  • the UE identifier is used to indicate address information when the UE receives service data through the multicast bearer.
  • the UE discovers that the UE-to-Network relay and/or the UE sends the request information by using a public safety spectrum and/or an LTE spectrum.
  • the UE receives service data from the UE-to-Network relay through a unicast bearer or a multicast bearer.
  • the UE sends a request message to the UE-to-Network relay, including: The UE requests the UE-to-Network relay to listen to the temporary mobility group identifier TMGI. The method further includes: the UE receiving the broadcasted message for notifying the TMGI that is sent by the UE-to-Network relay.
  • the request information includes a temporary mobility group identifier (TMGI), where the TMGI is a service identifier required by the UE, and is acquired by the UE before the UE-to-Network relay is found.
  • TMGI temporary mobility group identifier
  • a data transmission method for relay communication comprising: a user equipment to a network relay UE-to-network relay receiving a request message sent by a user equipment UE; and the UE-to-Network relay sending a response message to the UE;
  • the UE-to-Network relay obtains service data from the network side, and the UE-to-Network relay sends the service data to the UE.
  • the method further includes: sending, by the UE-to-Network relay, a broadcast message; or, after receiving the query request information of the UE-to-Network relay, the UE-to-Network relay sends the The query response information of the UE-to-Network relay.
  • the response message includes a service identifier.
  • the response message includes: a valid time and/or an address identifier, where the valid time is that the UE-to-Network relay monitors the network side control signaling and/or forwards data to the UE at the valid time.
  • the address identifier is used to indicate address information when the UE receives the service data through the multicast bearer.
  • the UE-to-Network relay acquires data of the service from a network side by using a unicast bearer or a multicast bearer.
  • the method further includes: the UE-to-Network relay intercepts the temporary mobile group identifier TMGI required by the UE; When the UE-to-Network relay discovers the required TMGI, it transmits a broadcast message for notifying the TMGI.
  • the request information includes a temporary mobile group identifier TMGI, where the TMGI is a service identifier required by the UE, and is acquired by the UE before the UE-to-Network relay is found.
  • TMGI temporary mobile group identifier
  • An apparatus for data transmission of a relay communication comprising: a discovery module, configured to: when the user equipment UE is located outside the network coverage area, discover the user equipment to the network relay UE-to-Network relay; the first sending module, setting Is: sending a request message to the UE-to-Network relay; The first receiving module is configured to receive the response message sent by the UE-to-Network relay, and the second receiving module is configured to: receive the service data forwarded by the UE-to-Network relay.
  • the discovery module includes: a first receiving unit, configured to: receive broadcast information sent by the UE-to-Network relay; and the first discovery unit is configured to: discover the UE-to-Network according to the broadcast information.
  • the discovery module includes: a first sending unit, configured to: send a query request information of the UE-to-Network relay; and the second receiving unit is configured to: receive the query response information of the UE-to-Network relay The second discovery unit is configured to: discover the UE-to-Network relay according to the query response information.
  • the first sending module includes: an establishing unit, configured to: establish a radio resource control RRC connection with the UE-to-Network relay through the PC5 interface; and the second sending unit is configured to: connect to the UE by using the RRC connection The -to-Network relay sends the request message.
  • an establishing unit configured to: establish a radio resource control RRC connection with the UE-to-Network relay through the PC5 interface
  • the second sending unit is configured to: connect to the UE by using the RRC connection
  • the -to-Network relay sends the request message.
  • the response message includes a service identifier.
  • the response message includes: a valid time and/or an address identifier, where the valid time is a control signaling and/or forwarding data sent by the UE-to-Network relay on the active time monitoring network side.
  • the UE identifier is used to indicate address information when the UE receives service data through the multicast bearer.
  • the discovery module discovers that the UE-to-Network relay and/or the first sending module sends the request information by using a public safety spectrum and/or an LTE spectrum.
  • the second receiving module receives service data from the UE-to-Network relay by using a unicast bearer or a multicast bearer.
  • the request message sent by the first sending module is used to request the UE-to-Network relay to listen to the temporary mobile group identifier TMGI.
  • the device further includes: a third receiving module, configured to: receive the UE-to - The broadcast message sent by the Network relay to notify the TMGI.
  • the request information includes a temporary mobile group identifier TMGI, where the TMGI is a service identifier required by the UE, and is acquired before the discovery module discovers the UE-to-Network relay.
  • TMGI temporary mobile group identifier
  • a data transmission device for relay communication comprising: a fourth receiving module, configured to: receive a request message sent by the user equipment UE; the second sending module is configured to: send a response message to the UE; the acquiring module is configured to: obtain service data from the network side; and the third sending module is configured to: send to the UE The business data.
  • the device further includes: a fourth sending module, configured to: send a broadcast message; or, after receiving the query request information of the UE-to-Network relay, send the query of the UE-to-Network relay Response information.
  • a fourth sending module configured to: send a broadcast message; or, after receiving the query request information of the UE-to-Network relay, send the query of the UE-to-Network relay Response information.
  • the response message includes a service identifier.
  • the response message includes: a valid time and/or an address identifier, where the valid time is that the UE-to-Network relay monitors the network side control signaling and/or forwards data to the UE at the valid time.
  • the address identifier is used to indicate address information when the UE receives the service data through the multicast bearer.
  • the acquiring module acquires data of the service from a network side by using a unicast bearer or a multicast bearer.
  • the device further includes: a monitoring module, configured to: monitor a temporary mobile group identifier TMGI required by the UE; and a fifth sending module, configured to: when the monitoring module finds the required TMGI, send the Notify TMGI of the broadcast message.
  • a monitoring module configured to: monitor a temporary mobile group identifier TMGI required by the UE
  • a fifth sending module configured to: when the monitoring module finds the required TMGI, send the Notify TMGI of the broadcast message.
  • the request information includes a temporary mobile group identifier TMGI, where the TMGI is a service identifier required by the UE, and is acquired by the UE before the UE-to-Network relay is found.
  • TMGI temporary mobile group identifier
  • a computer readable storage medium storing computer executable instructions for performing the method of any of the above.
  • the communication between the UE and the application server outside the coverage area is implemented by using the user equipment to the network relay, so that the data that the UE can obtain the service outside the network coverage is realized, and the real-time and robustness of the public safety communication is improved.
  • FIG. 1 is a schematic diagram of a network in which a neighboring device directly communicates in the related art
  • FIG. 2 is a schematic flowchart of a data transmission method for relay communication according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of another data transmission method for relay communication according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a public safety communication system according to an embodiment of the present invention.
  • FIG. 5 is a schematic flowchart of still another data transmission method for relay communication according to an embodiment of the present disclosure
  • FIG. 6 is a schematic flowchart of a data transmission method for relay communication according to Embodiment 1 of the present invention.
  • FIG. 7 is a schematic flowchart diagram of a data transmission method for relay communication according to Embodiment 2 of the present invention.
  • FIG. 8 is a schematic flowchart of a data transmission method for relay communication according to Embodiment 3 of the present invention.
  • FIG. 9 is a schematic flowchart of a data transmission method for relay communication according to Embodiment 4 of the present invention.
  • FIG. 10 is a schematic structural diagram of an apparatus for data transmission of relay communication according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of another data transmission apparatus for relay communication according to an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of a data transmission method for relay communication according to an embodiment of the present invention, where the method shown in FIG. 2 includes:
  • Step 201 When the user equipment UE is located outside the network coverage area, the UE discovers that the user equipment relays the UE-to-Network relay to the network;
  • Step 202 The UE sends a request message to the UE-to-Network relay.
  • Step 203 The UE receives a response message sent by the UE-to-Network relay.
  • Step 204 The UE receives service data forwarded by the UE-to-Network relay.
  • the UE when the UE is located outside the network coverage area, the UE discovers The UE-to-Network relay sends a request message to the UE-to-Network relay, and requests the UE-to-Network relay to send the data of the service to itself. After receiving the response message, the UE-to-Network relay is determined. The data of the service is sent to itself, so as to receive the data of the service from the UE-to-network relay, and the data that the UE can obtain the service outside the network coverage is realized, and the real-time of the public safety communication is improved. And robustness.
  • FIG. 3 is a schematic flowchart diagram of another data transmission method for relay communication according to an embodiment of the present invention.
  • the method shown in Figure 3 includes:
  • Step 301 The UE-to-Network relay receives the UE sending a request message.
  • Step 302 The UE-to-Network relay sends a response message to the UE.
  • Step 303 The UE-to-network relay acquires service data from the network side.
  • Step 304 The UE-to-Network relay sends the service data to the UE.
  • the UE-to-Network relay determines that the UE requests the data of the service, and sends a response message to notify the UE that the data of the service is sent to the UE, and the service is obtained.
  • the data, and the data of the service is sent, so that the UE receives the data of the service from the UE-to-network relay, and realizes that the UE can obtain the data of the service outside the network coverage, and improve the real-time of the public safety communication. Sex and robustness.
  • the UE in the method shown in FIG. 3 refers to a UE located outside the network coverage.
  • FIG. 4 is a schematic diagram of a public safety communication system according to an embodiment of the present invention.
  • the system in the schematic shown in Figure 4 uses a relay to implement public safety communications.
  • FIG. 5 is a schematic flowchart diagram of still another data transmission method for relay communication according to an embodiment of the present invention.
  • the method shown in Figure 5 includes:
  • Step 501 The user equipment UE finds a UE-to-Network relay in the neighboring area.
  • the user equipment UE is located outside the network coverage area and has the D2D function, and has signed the Public Safty (PS) function and activated the D2D discovery/communication function, such as a dedicated communication terminal, or added a universal support module.
  • Terminal includes a user terminal and a dispatching station,
  • the terminal includes a handheld terminal, a mobile station, a fixed station, and the like;
  • the dispatching station includes a wired dispatching station and a wireless dispatching station.
  • the UE-to-Network relay is located in the network coverage. For convenience of description, the following UE-to-Network relay is simply referred to as relay.
  • the relay has a D2D function and also has a public safety communication function and an MBMS function.
  • the relay is a terminal device, for example, a relay module is added to an existing LTE terminal, and the relay may be a portable or fixed device for forwarding data between the network and the UE.
  • the relay includes any one of the following: an IP relay.
  • Application Layer Gateway (ALG) The relay can periodically send a broadcast message in the vicinity: I am a relay.
  • the user equipment UE directly discovers a relay through an air interface, or discovers a UE by relay;
  • the UE sends the query request information of the UE-to-Network relay, receives the query response information of the UE-to-Network relay, and finds the UE-to-Network relay according to the query response information.
  • the discovery is performed by using a public safety spectrum, that is, the UE or the relay sends a beacon beacon on the public safety spectrum, and monitors the beacon on the public safety spectrum; the beacon includes at least the identifier of the UE or the relay; wherein the public safety spectrum includes But not limited to: 2/3G spectrum, LTE/LTE-A spectrum, WiFi spectrum, dedicated public safety spectrum.
  • the adjacent area is an area where the D2D discovery signal is valid, and beyond this area, the D2D devices cannot discover each other.
  • Step 502 The UE sends a request message to the relay.
  • the UE Before the step, the UE establishes an application layer connection with the application server AS through a relay, and receives a service advertisement. For example, the UE obtains the identifier of the required service (such as TMGI: Temporary Mobile Group Identify) through the service advertisement.
  • TMGI Temporary Mobile Group Identify
  • the UE establishes an RRC connection with the relay through the PC5 interface, and sends a request message to the relay;
  • the request message includes at least one of the following: a service identifier, and a UE identifier.
  • the service identifier is a service identifier that the UE is interested in receiving, such as TMGI.
  • the request message is sent over the public safety spectrum.
  • the UE requests the UE-to-Network relay to listen to the TMGI; wherein the TMGI is the service identifier required by the UE, which is acquired by the UE before the UE-to-Network relay is found.
  • Step 503 The relay sends a response message to the UE.
  • the relay receives the request message of the UE, and sends a response message to the UE, where the response message includes: a service identifier; where the service identifier is a service identifier that the relay forwards data to the UE, such as a layer two group identifier.
  • the method may further include: an effective time, an address identifier; wherein the effective time is that the relay can monitor the control signaling and/or forward the data to the UE during the time, and the relay stops listening and forwarding when the valid time expires; the address identifier is used to indicate The address information when the UE receives the service data through the multicast bearer.
  • Step 504 The relay listens to the service related message.
  • the UE-to-Network relay monitors the temporary mobility group identifier TMGI required by the UE, and when the UE-to-Network relay discovers the required TMGI, sends a broadcast message for notifying the TMGI.
  • the relay monitors related control signaling of a service that the UE is interested in receiving, such as L1/2 layer signaling, and/or RRC signaling, a paging message, etc., if the message of the service is monitored, the relay receives Corresponding business data.
  • the application server (AS) and the relay can transmit service data through a unicast bearer or a Multimedia Broadcast Multicast Service (MBMS) bearer.
  • MBMS Multimedia Broadcast Multicast Service
  • Step 505 The relay forwards the received service data to the UE.
  • the relay forwards the received service data to the UE through the PC5 interface.
  • the service data may be sent between the relay and the UE by using a unicast bearer or a multicast bearer.
  • the UE Before receiving the service data, the UE receives the broadcast message that is sent by the UE-to-Network relay and is used to notify the TMGI.
  • the method provided by the embodiment of the present invention implements communication between the UE and the application server outside the coverage area by using the user equipment to the network relay, so that the data that the UE can obtain the service outside the network coverage is obtained, and the public security is improved.
  • the real-time and robustness of communication is improved.
  • FIG. 6 is a schematic flowchart diagram of a data transmission method for relay communication according to Embodiment 1 of the present invention.
  • the scenario of the method in FIG. 6 is that MBMS transmission is adopted between the network and the relay, and multicast transmission is adopted between the Relay and the UE.
  • the method includes:
  • Step 601 The UE finds a relay in a neighboring area.
  • This step is the same as step 501 and will not be described here.
  • Step 602 The UE receives the service announcement by using the relay.
  • the AS chooses to send the service through the MBMS.
  • the AS sends the MBMS service advertisement.
  • the service advertisement includes: the service identifier TMGI.
  • the service start time and the service description are also included.
  • the UE establishes an application layer connection with the AS through the relay to obtain the MBMS service advertisement information.
  • Step 603 The UE sends a request message to the relay.
  • the request message includes at least: TMGI.
  • the TMGI is an MBMS service identifier that the UE is interested in receiving, and may be one or more.
  • the request is sent on the PS spectrum through the PC5 port.
  • Step 604 The relay sends a response message to the UE.
  • step 503 This step is the same as step 503, and details are not described herein again.
  • step 605 the relay listens to the TMGI.
  • the relay first listens to the MCCH (Multicast Control Channel) update notification message, and receives the MCCH message according to the notification message, and listens to the TMGI therein.
  • MCCH Multicast Control Channel
  • Step 606 Whether the relay listens to the required TMGI, if yes, go to step 607, otherwise go to step 605.
  • the relay determines whether the TMGI in the MCCH has a TMGI that is of interest to the UE, and if the same is the TMGI that the UE is interested in.
  • Step 607 The relay broadcasts the TMGI.
  • the relay broadcasts the monitored TMGI on the PC5 port. It should be noted that: in the Relay work Other UEs in the range (non-step UE 603) may also receive the TMGI broadcast notification, and if the UE receiving the notification is interested in receiving the TMGI, it sends a request message to the relay (same as step 603).
  • step 608 the relay forwards the service data by multicast.
  • the relay receives the MBMS service data, and sends the received MBMS service data on the multicast address; the multicast address is sent to the corresponding UE in step 604.
  • the method provided in the first embodiment of the present invention uses MBMS transmission between the network and the relay, and uses the user equipment to the network relay to implement communication between the UE and the application server outside the coverage area in the scenario of using the multicast transmission between the relay and the UE. To realize the data that the UE can obtain the service outside the network coverage, and improve the real-time and robustness of the public safety communication.
  • FIG. 7 is a schematic flowchart diagram of a data transmission method for relay communication according to Embodiment 2 of the present invention.
  • the scenario of the method shown in FIG. 7 is that MBMS transmission is adopted between the network and the relay, and unicast transmission is adopted between the Relay and the UE, and the method for implementing communication includes:
  • Step 701 The UE finds a relay in a neighboring area.
  • This step is the same as step 501 and will not be described here.
  • Step 702 The UE receives the service announcement by using the relay.
  • the AS chooses to send the service through the MBMS.
  • the AS sends the MBMS service advertisement.
  • the service advertisement includes: the service identifier TMGI.
  • the service start time and the service description are also included.
  • the UE establishes an application layer connection with the AS through the relay to obtain the MBMS service advertisement information.
  • Step 703 The UE sends a request message to the relay.
  • the request message includes at least: TMGI.
  • the TMGI is an MBMS service identifier that the UE is interested in receiving, and may be one or more.
  • the request is sent on the PS spectrum through the PC5 port.
  • Step 704 The relay sends a response message to the UE.
  • step 503 This step is the same as step 503, and details are not described herein again.
  • step 705 the relay listens to the TMGI.
  • the relay first listens to the MCCH update notification message, and receives the MCCH message according to the notification message, and listens to the TMGI therein.
  • Step 706 whether the relay listens to the required TMGI, and if so, proceeds to step 707, otherwise to step 705.
  • the relay determines whether the TMGI in the MCCH has a TMGI that is of interest to the UE, and if the same is the TMGI that the UE is interested in.
  • Step 707 The relay broadcasts the TMGI.
  • the relay broadcasts the monitored TMGI on the PC5 port. It should be noted that other UEs in the Relay working range (non-step UE 603) may also receive the TMGI broadcast notification, and the UE that receives the notification is interested in receiving.
  • the TMGI sends a request message to the relay (same as step 603).
  • step 708 the relay forwards the service data by unicast.
  • the relay receives the MBMS service data, establishes a unicast bearer with the UE, and sends the received MBMS service data on the unicast bearer.
  • the method provided by the second embodiment of the present invention uses the MBMS transmission between the network and the relay, and the unicast transmission between the relay and the UE, and the communication between the UE and the application server outside the coverage area is implemented by using the user equipment to the network relay. To realize the data that the UE can obtain the service outside the network coverage, and improve the real-time and robustness of the public safety communication.
  • FIG. 8 is a schematic flowchart diagram of a data transmission method for relay communication according to Embodiment 3 of the present invention.
  • the scenario of the method shown in FIG. 8 is a scenario in which a unicast transmission is used between a network and a relay, and a multicast transmission is used between the relay and the UE.
  • the method for implementing communication includes:
  • Step 801 The UE finds a relay in a neighboring area.
  • This step is the same as step 501 and will not be described here.
  • Step 802 The UE sends a request message to the relay.
  • the request message includes: a UE identifier.
  • the request message is used to relay to receive messages and data related to the UE.
  • the request is sent on the PS spectrum through the PC5 port.
  • Step 803 The relay sends a response message to the UE.
  • step 503 This step is the same as step 503, and details are not described herein again.
  • Step 804 The relay monitors the UE related message.
  • the relay listens for a paging message.
  • Step 805 Whether the relay listens to the required message, if yes, go to step 806, otherwise go to step 804.
  • the relay determines whether the paging message is related to the UE, and if the paging message includes the UE identifier, it is related to the UE.
  • Step 806 The relay forwards the service data by multicast.
  • the relay receives the service data, and sends the received service data on the multicast address; the multicast address is sent to the corresponding UE in step 803.
  • the method provided in the third embodiment of the present invention uses unicast transmission between the network and the relay, and in the scenario that the relay and the UE adopt multicast transmission, the user equipment to the network relay is used to implement the UE and the application server outside the coverage area. Communication, which enables the UE to obtain data of the service outside the network coverage, and improve the real-time and robustness of the public safety communication.
  • FIG. 9 is a schematic flowchart diagram of a data transmission method for relay communication according to Embodiment 4 of the present invention.
  • the scenario of the method shown in FIG. 9 is a scenario in which unicast transmission is used between the network and the relay, and a unicast transmission between the relay and the UE is adopted.
  • the method for implementing communication includes:
  • Step 901 The UE finds a relay in a neighboring area.
  • This step is the same as step 501 and will not be described here.
  • Step 902 The UE sends a request message to the relay.
  • the request message includes: a UE identifier.
  • the request message is used for relay reception related to the UE Messages and data.
  • the request is sent on the PS spectrum through the PC5 port.
  • Step 903 The relay sends a response message to the UE.
  • step 503 This step is the same as step 503, and details are not described herein again.
  • Step 904 The relay monitors the UE related message.
  • the relay listens for a paging message.
  • Step 905 whether the relay listens to the required message, and if so, proceeds to step 906, otherwise to step 904.
  • the relay determines whether the paging message is related to the UE, and if the paging message includes the UE identifier, it is related to the UE.
  • Step 906 The relay forwards the service data by using unicast.
  • the relay receives the service data, establishes a unicast bearer with the UE, and sends the received service data on the unicast bearer.
  • the method provided in the fourth embodiment of the present invention uses a unicast transmission between the network and the relay, and a unicast transmission between the relay and the UE, and the UE and the application server outside the coverage area are implemented by using the user equipment to the network relay.
  • the communication enables the UE to obtain data of the service outside the network coverage, and improves the real-time and robustness of the public safety communication.
  • the method provided by the embodiment of the present invention implements communication between the UE and the application server outside the coverage area by using the user equipment to the network relay, so that the UE is located outside the network coverage.
  • FIG. 10 is a schematic structural diagram of an apparatus for data transmission of relay communication according to an embodiment of the present invention.
  • the device shown in Figure 10 includes:
  • the discovery module 1001 is configured to: when the user equipment UE is located outside the network coverage area, discover the user equipment to the network relay UE-to-Network relay;
  • the first sending module 1002 is configured to: send a request to the UE-to-Network relay. interest;
  • the first receiving module 1003 is configured to: receive a response message sent by the UE-to-Network relay;
  • the second receiving module 1004 is configured to: receive service data forwarded by the UE-to-Network relay.
  • the discovery module 1001 includes:
  • the first receiving unit is configured to: receive broadcast information sent by the UE-to-Network relay;
  • a first discovery unit configured to: discover a UE-to-Network relay according to the broadcast information
  • the discovery module 1001 includes:
  • the first sending unit is configured to: send query request information of the UE-to-Network relay;
  • the second receiving unit is configured to: receive query response information of the UE-to-Network relay;
  • the second discovery unit is configured to: discover the UE-to-Network relay according to the query response information.
  • the first sending module 1002 includes:
  • Establishing a unit configured to: establish a radio resource control RRC connection with the UE-to-Network relay through the PC5 interface;
  • the second sending unit is configured to: send the request message to the UE-to-Network relay by using the RRC connection.
  • the response message further includes one of the following: an effective time, an address identifier, where the valid time is a control signaling and/or forwarding data sent by the UE-to-Network relay on the active time monitoring network side.
  • the UE identifier is used to indicate address information when the UE receives service data through the multicast bearer.
  • the discovery module 1001 discovers that the UE-to-Network relay and/or the first sending module sends the request information through the public safety spectrum and/or the LTE spectrum.
  • the second receiving module 1004 is configured by using a unicast bearer or a multicast bearer.
  • the UE-to-Network relay receives the service data.
  • the request message sent by the first sending module 1003 is used to request the UE-to-network relay to listen to the temporary mobile group identifier TMGI.
  • the device further includes: a third receiving module, configured to: receive the UE-to- The broadcast message sent by the Network relay to notify the TMGI.
  • the request information includes a temporary mobile group identifier TMGI, where the TMGI is a service identifier required by the UE, which is acquired before the discovery module finds the UE-to-Network relay.
  • TMGI temporary mobile group identifier
  • the UE when the UE is located outside the network coverage area, the UE sends a request message to the UE-to-Network relay by requesting the UE-to-Network relay, and requests the UE-to-Network relay to send the data of the service to the UE.
  • the UE-to-Network relay After receiving the response message, it is determined that the UE-to-Network relay sends the data of the service to itself, so as to implement the purpose of receiving the data of the service from the UE-to-Network relay, and implementing the UE in the network.
  • the data of the business can be obtained outside the coverage, and the real-time and robustness of public safety communication can be improved.
  • FIG. 11 is a schematic structural diagram of another data transmission apparatus for relay communication according to an embodiment of the present invention.
  • the device shown in Figure 11 includes:
  • the fourth receiving module 1101 is configured to: receive a request message sent by the user equipment UE;
  • the second sending module 1102 is configured to: send a response message to the UE;
  • the obtaining module 1103 is configured to: obtain service data from a network side;
  • the third sending module 1104 is configured to: send the service data to the UE.
  • the device further comprises:
  • the fourth sending module is configured to: send a broadcast message; or, after receiving the query request information of the UE-to-Network relay, send the query response information of the UE-to-Network relay.
  • the response message includes a service identifier, and may further include: an effective time, an address identifier, where the valid time is that the UE-to-Network relay monitors the network side control signaling and/or forwards the data to the effective time.
  • the UE identifier is used to indicate address information when the UE receives service data through the multicast bearer.
  • the UE-to-network relay is obtained from the network side by using a unicast bearer or a multicast bearer.
  • the data of the business is obtained from the network side by using a unicast bearer or a multicast bearer.
  • the device further comprises:
  • the monitoring module is configured to: monitor the temporary mobile group identifier TMGI required by the UE;
  • the fifth sending module is configured to: when the UE-to-Network relay discovers the required TMGI, send a broadcast message for notifying the TMGI.
  • the request information includes a temporary mobile group identifier TMGI, where the TMGI is a service identifier required by the UE, which is acquired by the UE before the UE-to-Network relay is found.
  • TMGI temporary mobile group identifier
  • the UE-to-Network relay determines that the UE requests the data of the service, and sends a response message to notify the UE that the data of the service is sent to the UE, and the data of the service is obtained. And transmitting the data of the service, implementing the purpose of the UE receiving the data of the service from the UE-to-network relay, realizing that the UE can obtain the data of the service outside the network coverage, and improving the real-time performance of the public safety communication. Robustness.
  • all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve.
  • the devices/function modules/functional units in the above embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
  • each device/function module/functional unit in the above embodiment When each device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium.
  • the above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
  • the communication between the UE and the application server outside the coverage area is implemented by using the user equipment to the network relay, so that the data that the UE can obtain the service outside the network coverage is realized, and the real-time and robustness of the public safety communication is improved.

Abstract

本文公布一种中继通信的数据传输方法和装置；所述方法，包括：当用户设备UE位于网络覆盖区域外时，UE发现用户设备到网络中继UE-to-Network relay；所述UE向所述UE-to-Network relay发送请求消息；所述UE接收所述UE-to-Network relay发送的响应消息；所述UE接收所述UE-to-Network relay转发的业务数据。

Description

中继通信的数据传输方法和装置 技术领域
本申请涉及但不限于通信领域。
背景技术
如果公共安全网络基于3GPP标准，如LTE，则用户可以在有公共或商业3GPP网络的任何地方进行通信。这就扩大了可覆盖的行动区域和通信能力。而且，由于这些网络基于相同的开放标准，就不再有不兼容的问题了。使用3GPP标准和技术还可以使公共安全机构与更广泛的人群共享信息，无论他们是运营商、其他机构、志愿者还是专家。移动宽带让使用地图、建筑平面图和视频资料等各种数据服务成为可能，这就大大增强了语音通信效果。这种方法具有较大的灵活性，因为数据变得与语音通信一样便捷；人员可以从办公电脑、车载笔记本电脑或在野外使用手机访问相同的信息。
设备到设备(D2D，Device to Device)通信是指邻近的设备间直接通信，如蓝牙，由于缺少网络管控，D2D通信一般采用非授权频谱，如2.4GHz。随着智能手机的快速普及，出现了很多新的应用，如基于位置应用，社交应用等等。在移动通信网络中，用户设备之间的通信必须通过网络进行，即使两个设备位于邻近的位置，这是因为网络运营商需要对授权频谱进行管控，当通信双方使用授权频谱进行通信时，必须通过网络，以实现网络对通信活动的资源调度，计费和管理等。
图1为相关技术中邻近设备直接通信的网络示意图。图1所示示意图是为了降低网络负载，3GPP提出的邻近设备直接通信的设想、D2D具备广播通信和中继通信功能，因此在公共安全通信中采用D2D技术具有天然的优势。
在对相关技术的研究和实践过程中发现相关技术存在以下问题：当UE位于网络覆盖范围外，UE因为没有网络信号，因此无法与应用服务器进行通信，从而无法接收到业务数据。
发明内容
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
本文提供一种中继通信的数据传输方法和装置，解决在当UE位于网络覆盖范围外，如何获取业务的数据的问题。
一种中继通信的数据传输方法，包括：当用户设备UE位于网络覆盖区域外时，UE发现用户设备到网络中继UE-to-Network relay；所述UE向所述UE-to-Network relay发送请求消息；所述UE接收所述UE-to-Network relay发送的响应消息；所述UE接收所述UE-to-Network relay转发的业务数据。
可选地，所述UE发现用户设备到网络中继UE-to-Network relay，包括：所述UE接收UE-to-Network relay发送的广播信息，根据所述广播信息，发现UE-to-Network relay；或者，所述UE发送UE-to-Network relay的查询请求信息，接收UE-to-Network relay的查询响应信息，根据所述查询响应信息，发现UE-to-Network relay。
可选地，所述UE向所述UE-to-Network relay发送请求消息，包括：所述UE通过PC5接口与UE-to-Network relay建立无线资源控制RRC连接，并通过所述RRC连接向UE-to-Network relay发送所述请求消息。
可选地，所述响应消息包括业务标识。
可选地，所述响应消息包括：有效时间和/或地址标识；其中所述有效时间为UE-to-Network relay在所述有效时间监听网络侧发送的控制信令和/或转发数据到所述UE；地址标识用于指示UE通过多播承载接收业务数据时的地址信息。
可选地，所述UE发现UE-to-Network relay和/或所述UE发送所述请求信息是通过公共安全频谱和/或LTE频谱进行的。
可选地，所述UE通过单播承载或多播承载从UE-to-Network relay接收业务数据。
可选地，所述UE向所述UE-to-Network relay发送请求消息，包括：所 述UE请求UE-to-Network relay监听临时移动组标识TMGI；所述方法还包括：所述UE接收所述UE-to-Network relay发送的监听到的用于通知TMGI的广播消息。
可选地，所述请求信息包含临时移动组标识TMGI，其中TMGI为所述UE所需的业务标识，是所述UE在发现UE-to-Network relay之前获取的。
一种中继通信的数据传输方法，包括：用户设备到网络中继UE-to-Network relay接收用户设备UE发送的请求消息；所述UE-to-Network relay向所述UE发送响应消息；所述UE-to-Network relay从网络侧获取业务数据；所述UE-to-Network relay向所述UE发送所述业务数据。
可选地，所述方法还包括：所述UE-to-Network relay发送广播消息；或者，所述UE-to-Network relay在接收到UE-to-Network relay的查询请求信息后，发送所述UE-to-Network relay的查询响应信息。
可选地，所述响应消息包括业务标识。
可选地，所述响应消息包括：有效时间和/或地址标识；其中所述有效时间为UE-to-Network relay在所述有效时间监听网络侧控制信令和/或转发数据到所述UE；地址标识用于指示UE通过多播承载接收业务数据时的地址信息。
可选地，所述UE-to-Network relay通过单播承载或多播承载从网络侧获取所述业务的数据。
可选地，所述UE-to-Network relay从网络侧接收TMGI对应的业务数据之前，所述方法还包括：所述UE-to-Network relay监听UE所需的临时移动组标识TMGI；当所述UE-to-Network relay发现所需的TMGI时，发送用于通知TMGI的广播消息。
可选地，所述请求信息包含临时移动组标识TMGI，其中TMGI为UE所需的业务标识，是所述UE在发现UE-to-Network relay之前获取的。
一种中继通信的数据传输的装置，包括：发现模块，设置为：当用户设备UE位于网络覆盖区域外时，发现用户设备到网络中继UE-to-Network relay；第一发送模块，设置为：向所述UE-to-Network relay发送请求消息； 第一接收模块，设置为：接收所述UE-to-Network relay发送的响应消息；第二接收模块，设置为：接收所述UE-to-Network relay转发的业务数据。
可选地，所述发现模块包括：第一接收单元，设置为：接收UE-to-Network relay发送的广播信息；第一发现单元，设置为：根据所述广播信息，发现UE-to-Network relay；或者，所述发现模块，包括：第一发送单元，设置为：发送UE-to-Network relay的查询请求信息；第二接收单元，设置为：接收UE-to-Network relay的查询响应信息；第二发现单元，设置为：根据所述查询响应信息，发现UE-to-Network relay。
可选地，所述第一发送模块包括：建立单元，设置为：通过PC5接口与UE-to-Network relay建立无线资源控制RRC连接；第二发送单元，设置为：通过所述RRC连接向UE-to-Network relay发送所述请求消息。
可选地，所述响应消息包括业务标识。
可选地，所述响应消息包括：有效时间和/或地址标识；其中所述有效时间为UE-to-Network relay在所述有效时间监听网络侧发送的控制信令和/或转发数据到所述UE；地址标识用于指示UE通过多播承载接收业务数据时的地址信息。
可选地，所述发现模块发现UE-to-Network relay和/或所述第一发送模块发送所述请求信息是通过公共安全频谱和/或LTE频谱进行的。
可选地，所述第二接收模块通过单播承载或多播承载从UE-to-Network relay接收业务数据。
可选地，所述第一发送模块发送的请求消息用于请求UE-to-Network relay监听临时移动组标识TMGI；所述装置还包括：第三接收模块，设置为：接收所述UE-to-Network relay发送的监听到的用于通知TMGI的广播消息。
可选地，所述请求信息包含临时移动组标识TMGI，其中TMGI为所述UE所需的业务标识，是在所述发现模块发现UE-to-Network relay之前获取的。
一种中继通信的数据传输装置，包括：第四接收模块，设置为：接收用 户设备UE发送的请求消息；第二发送模块，设置为：向所述UE发送响应消息；获取模块，设置为：从网络侧获取业务数据；第三发送模块，设置为：向所述UE发送所述业务数据。
可选地，所述装置还包括：第四发送模块，设置为：发送广播消息；或者，在接收到UE-to-Network relay的查询请求信息后，发送所述UE-to-Network relay的查询响应信息。
可选地，所述响应消息包括业务标识。
可选地，所述响应消息包括：有效时间和/或地址标识；其中所述有效时间为UE-to-Network relay在所述有效时间监听网络侧控制信令和/或转发数据到所述UE；地址标识用于指示UE通过多播承载接收业务数据时的地址信息。
可选地，所述获取模块通过单播承载或多播承载从网络侧获取所述业务的数据。
可选地，所述装置还包括：监听模块，设置为：监听UE所需的临时移动组标识TMGI；第五发送模块，设置为：当所述监听模块发现所需的TMGI时，发送用于通知TMGI的广播消息。
可选地，所述请求信息包含临时移动组标识TMGI，其中TMGI为UE所需的业务标识，是所述UE在发现UE-to-Network relay之前获取的。
一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令用于执行上述任一项的方法。
本发明实施例，借助用户设备到网络中继实现覆盖区域外的UE和应用服务器的通信，实现UE位于网络覆盖范围外能够获取到业务的数据，提高公共安全通信的实时性和健壮性。
在阅读并理解了附图和详细描述后，可以明白其他方面。
附图概述
图1为相关技术中邻近设备直接通信的网络示意图；
图2为本发明实施例提供的一种中继通信的数据传输方法的流程示意图；
图3为本发明实施例提供的另一种中继通信的数据传输方法的流程示意图；
图4为本发明实施例提供的公共安全通信系统的示意图；
图5为本发明实施例提供的又一种中继通信的数据传输方法的流程示意图；
图6为本发明实施例一提供的中继通信的数据传输方法的流程示意图；
图7为本发明实施例二提供的中继通信的数据传输方法的流程示意图；
图8为本发明实施例三提供的中继通信的数据传输方法的流程示意图；
图9为本发明实施例四提供的中继通信的数据传输方法的流程示意图；
图10为本发明实施例提供的一种中继通信的数据传输的装置的结构示意图；
图11为本发明实施例提供的另一种中继通信的数据传输装置的结构示意图。
本发明的实施方式
下面将结合附图对本发明的实施方式进行描述。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互任意组合。
图2为本发明实施例提供的一种中继通信的数据传输方法的流程示意图，图2所示方法包括：
步骤201、当用户设备UE位于网络覆盖区域外时，UE发现用户设备到网络中继UE-to-Network relay；
步骤202、所述UE向所述UE-to-Network relay发送请求消息；
步骤203、所述UE接收所述UE-to-Network relay发送的响应消息；
步骤204、所述UE接收所述UE-to-Network relay转发的业务数据。
本文提供的方法实施例，当UE位于网络覆盖区域外时，UE通过发现 UE-to-Network relay，将请求消息发送给UE-to-Network relay，请求UE-to-Network relay将该业务的数据发送给自己，当接收到响应消息后，确定UE-to-Network relay会将该业务的数据发送给自己，从而实现从所述UE-to-Network relay接收所述业务的数据的目的，实现UE位于网络覆盖范围外能够获取到业务的数据，提高公共安全通信的实时性和健壮性。
图3为本发明实施例提供的另一种中继通信的数据传输方法的流程示意图。图3所示方法包括：
步骤301、UE-to-Network relay接收所述UE发送请求消息；
步骤302、所述UE-to-Network relay向所述UE发送响应消息；
步骤303、所述UE-to-Network relay从网络侧获取业务数据；
步骤304、所述UE-to-Network relay向UE发送所述业务数据。
本文提供的方法实施例，UE-to-Network relay在接收到请求信息后，确定UE请求该业务的数据，通过发送响应消息，告知UE本地会将该业务的数据发送给该UE，获取该业务的数据，并发送该业务的数据，实现UE从所述UE-to-Network relay接收所述业务的数据的目的，实现UE位于网络覆盖范围外能够获取到业务的数据，提高公共安全通信的实时性和健壮性。
图3所示方法中所述UE是指位于网络覆盖外的UE。
下面对本发明实施例作进一步说明：
图4为本发明实施例提供的公共安全通信系统的示意图。图4所示示意图中的系统是利用relay实现公共安全通信的。
下面结合方法流程对上述系统做进一步说明：
图5为本发明实施例提供的又一种中继通信的数据传输方法的流程示意图。图5所示方法包括：
步骤501、用户设备UE在邻近区域发现UE-to-Network relay。
所述用户设备UE位于网络覆盖区域之外，且具备D2D功能，且签约了公共安全(Public Safty，PS)功能和激活了D2D发现/通信功能，如专用通信终端，或增加了支持模块的通用终端；上述终端包括用户终端和调度台，用 户终端包括手持终端、车载台和固定台等；调度台包括有线调度台和无线调度台。所述UE-to-Network relay位于网络覆盖中，为了便于描述，如无特殊说明，以下UE-to-Network relay简称为relay。所述relay具有D2D功能，还具有：公共安全通信功能和MBMS功能。
所述relay为终端设备，如在已有的LTE终端上增加relay模块，relay可为便携或固定设备，用于在网络和UE之间转发数据，所述relay包括以下任意一种：IP relay，应用层网关(Application Layer Gateway，ALG)。所述relay可在邻近区域周期性发送广播消息：我是relay。
其中，所述用户设备UE通过空口直接发现relay，或者relay发现UE；
所述UE接收UE-to-Network relay发送的广播信息，根据所述广播信息，发现UE-to-Network relay；或者，
所述UE发送UE-to-Network relay的查询请求信息，接收UE-to-Network relay的查询响应信息，根据所述查询响应信息，发现UE-to-Network relay。
其中，所述发现通过公共安全频谱进行，即UE或relay在公共安全频谱上发送信标beacon，并在公共安全频谱上监测beacon；所述beacon至少包含UE或relay的标识；其中公共安全频谱包括但不限于：2/3G频谱，LTE/LTE-A频谱，WiFi频谱，专门的公共安全频谱。
所述邻近区域为D2D发现信号有效的区域，超出该区域，则D2D设备不能相互发现。
步骤502、UE向relay发送请求消息。
在本步骤之前所述UE通过relay与应用服务器AS建立应用层连接，并接收业务通告。例如：UE通过业务通告获取所需业务的标识(如TMGI：Temporary Mobile Group Identify,临时移动组标识)。
所述UE通过PC5接口与relay建立RRC连接，并向relay发送请求消息；
所述请求消息包含下面至少一种：业务标识，UE标识。所述业务标识为UE感兴趣接收的业务标识，如TMGI。
所述请求消息通过公共安全频谱发送。
所述UE请求UE-to-Network relay监听TMGI；其中TMGI为所述UE所需的业务标识，是所述UE在发现UE-to-Network relay之前获取的。
步骤503、relay向UE发送响应消息。
所述relay收到所述UE的请求消息，向所述UE发送响应消息，所述响应消息包含：业务标识；这里的业务标识为relay向UE转发数据的业务标识，如层二组标识。还可包括：有效时间，地址标识；其中有效时间的作用是在该时间内relay可以监听控制信令和/或转发数据到UE，有效时间到期则relay停止监听和转发；地址标识用于指示UE通过多播承载接收业务数据时的地址信息。
步骤504、relay监听业务相关消息。
其中，所述UE-to-Network relay监听UE所需的临时移动组标识TMGI，当所述UE-to-Network relay发现所需的TMGI时，发送用于通知TMGI的广播消息。
所述relay监听UE感兴趣接收的业务的相关控制信令，如L1/2层信令，和/或RRC信令，寻呼消息等，如果监听到所述业务的消息，则所述relay接收相应的业务数据。应用服务器(Application Server,AS)和Relay之间可通过单播承载或多媒体广播多播业务(Multimedia Broadcast Multicast Service，MBMS)承载发送业务数据。
步骤505、relay向UE转发收到的业务数据。
所述relay通过PC5接口向UE转发收到的业务数据。所述relay和UE之间可通过单播承载或多播承载发送业务数据。
其中，所述UE在接收业务数据前，所述UE接收所述UE-to-Network relay发送的监听到的用于通知TMGI的广播消息。
由上可以看出，本发明实施例提供的方法，借助用户设备到网络中继实现覆盖区域外的UE和应用服务器的通信，实现UE位于网络覆盖范围外能够获取到业务的数据，提高公共安全通信的实时性和健壮性。
下面通过公共安全通信场景的实施例来说明本发明实施例的方案；为了便于说明，以下实施例包含以下假设：参与通信的UE和relay具备D2D发现 和通信能力。
实施例一
图6为本发明实施例一提供的中继通信的数据传输方法的流程示意图。图6所述方法的场景是网络与relay之间采用MBMS传输，Relay与UE之间采用多播传输。该方法包括：
步骤601、UE在邻近区域发现relay。
本步骤与步骤501相同，这里不再赘述。
步骤602、UE通过relay接收业务通告。
AS选择通过MBMS发送业务，首先AS发送MBMS业务通告，所述业务通告包含：业务标识TMGI；还可包含：业务开始时间，业务描述。
所述UE通过relay与AS建立应用层连接，获取MBMS业务通告信息。
步骤603、UE向relay发送请求消息。
所述请求消息至少包含：TMGI。其中TMGI为UE感兴趣接收的MBMS业务标识，可为一个或多个。
所述请求通过PC5口在PS频谱上发送。
步骤604、relay向UE发送响应消息。
本步骤与步骤503相同，这里不再赘述。
步骤605、relay监听TMGI。
所述relay首先监听MCCH(Multicast Control Channel，多播控制信道)更新通知消息，并根据通知消息接收MCCH消息，监听其中的TMGI。
步骤606、relay是否监听到所需TMGI，如果是，转向步骤607、否则转向步骤605。
所述relay判断MCCH中的TMGI是否有UE感兴趣的TMGI，如果相同即为UE感兴趣的TMGI。
步骤607、relay广播TMGI。
所述relay在PC5口上广播监听到的TMGI，需要指出的是：在Relay工 作范围内的其他UE(非步骤603中的UE)也可收到TMGI广播通知，收到通知的UE如果感兴趣接收所述TMGI，则向relay发送请求消息(同步骤603)。
步骤608，relay通过多播转发业务数据。
所述relay接收MBMS业务数据，在多播地址上发送收到的MBMS业务数据；上述多播地址在步骤604中已发送给相应的UE。
本发明实施例一提供的方法，在网络与relay之间采用MBMS传输，Relay与UE之间采用多播传输的场景下，借助用户设备到网络中继实现覆盖区域外的UE和应用服务器的通信，实现UE位于网络覆盖范围外能够获取到业务的数据，提高公共安全通信的实时性和健壮性。
实施例二
图7为本发明实施例二提供的中继通信的数据传输方法的流程示意图。图7所示方法的场景为网络与relay之间采用MBMS传输，Relay与UE之间采用单播传输，实现通信的方法包括：
步骤701、UE在邻近区域发现relay。
本步骤与步骤501相同，这里不再赘述。
步骤702、UE通过relay接收业务通告。
AS选择通过MBMS发送业务，首先AS发送MBMS业务通告，所述业务通告包含：业务标识TMGI；还可包含：业务开始时间，业务描述。
所述UE通过relay与AS建立应用层连接，获取MBMS业务通告信息。
步骤703、UE向relay发送请求消息。
所述请求消息至少包含：TMGI。其中TMGI为UE感兴趣接收的MBMS业务标识，可为一个或多个。
所述请求通过PC5口在PS频谱上发送。
步骤704、relay向UE发送响应消息。
本步骤与步骤503相同，这里不再赘述。
步骤705、relay监听TMGI。
所述relay首先监听MCCH更新通知消息，并根据通知消息接收MCCH消息，监听其中的TMGI。
步骤706、relay是否监听到所需TMGI，如果是，转向步骤707、否则转向步骤705。
所述relay判断MCCH中的TMGI是否有UE感兴趣的TMGI，如果相同即为UE感兴趣的TMGI。
步骤707、relay广播TMGI。
所述relay在PC5口上广播监听到的TMGI，需要指出的是：在Relay工作范围内的其他UE(非步骤603中的UE)也可收到TMGI广播通知，收到通知的UE如果感兴趣接收所述TMGI，则向relay发送请求消息(同步骤603)。
步骤708，relay通过单播转发业务数据。
所述relay接收MBMS业务数据，与UE建立单播承载，并在单播承载上发送收到的MBMS业务数据。
本发明实施例二提供的方法，在网络与relay之间采用MBMS传输，Relay与UE之间采用单播传输的场景下，借助用户设备到网络中继实现覆盖区域外的UE和应用服务器的通信，实现UE位于网络覆盖范围外能够获取到业务的数据，提高公共安全通信的实时性和健壮性。
实施例三
图8为本发明实施例三提供的中继通信的数据传输方法的流程示意图。图8所示方法的场景是网络与relay之间采用单播传输，Relay与UE之间采用多播传输的场景，实现通信的方法包括：
步骤801、UE在邻近区域发现relay。
本步骤与步骤501相同，这里不再赘述。
步骤802、UE向relay发送请求消息。
所述请求消息包含：UE标识。所述请求消息用于relay接收与UE有关的消息和数据。
所述请求通过PC5口在PS频谱上发送。
步骤803、relay向UE发送响应消息。
本步骤与步骤503相同，这里不再赘述。
步骤804、relay监听UE相关消息。
所述relay监听寻呼消息。
步骤805、relay是否监听到所需消息，如果是，转向步骤806、否则转向步骤804。
所述relay判断寻呼消息是否与UE有关，如果寻呼消息中包含UE标识，则为与UE有关。
步骤806、relay通过多播转发业务数据。
所述relay接收业务数据，在多播地址上发送收到的业务数据；上述多播地址在步骤803中已发送给相应的UE。
本发明实施例三提供的方法，在网络与relay之间采用单播传输，Relay与UE之间采用多播传输的场景下，借助用户设备到网络中继实现覆盖区域外的UE和应用服务器的通信，实现UE位于网络覆盖范围外能够获取到业务的数据，提高公共安全通信的实时性和健壮性。
实施例四
图9为本发明实施例四提供的中继通信的数据传输方法的流程示意图。图9所示方法的场景是网络与relay之间采用单播传输，Relay与UE之间采用单播传输的场景，实现通信的方法包括：
步骤901、UE在邻近区域发现relay。
本步骤与步骤501相同，这里不再赘述。
步骤902、UE向relay发送请求消息。
所述请求消息包含：UE标识。所述请求消息用于relay接收与UE有关 的消息和数据。
所述请求通过PC5口在PS频谱上发送。
步骤903、relay向UE发送响应消息。
本步骤与步骤503相同，这里不再赘述。
步骤904、relay监听UE相关消息。
所述relay监听寻呼消息。
步骤905、relay是否监听到所需消息，如果是，转向步骤906、否则转向步骤904。
所述relay判断寻呼消息是否与UE有关，如果寻呼消息中包含UE标识，则为与UE有关。
步骤906、relay通过单播转发业务数据。
所述relay接收业务数据，与UE建立单播承载，并在单播承载上发送收到的业务数据。
本发明实施例四提供的方法，在网络与relay之间采用单播传输，Relay与UE之间采用单播传输的的场景下，借助用户设备到网络中继实现覆盖区域外的UE和应用服务器的通信，实现UE位于网络覆盖范围外能够获取到业务的数据，提高公共安全通信的实时性和健壮性。
由上可以看出，在设备之间通信方式不同场景下，本发明实施例提供的方法均借助用户设备到网络中继实现覆盖区域外的UE和应用服务器的通信，实现UE位于网络覆盖范围外能够获取到业务的数据，提高公共安全通信的实时性和健壮性。
图10为本发明实施例提供的一种中继通信的数据传输的装置的结构示意图。图10所示装置，包括：
发现模块1001，设置为：当用户设备UE位于网络覆盖区域外时，发现用户设备到网络中继UE-to-Network relay；
第一发送模块1002，设置为：向所述UE-to-Network relay发送请求消 息；
第一接收模块1003，设置为：接收所述UE-to-Network relay发送的响应消息；
第二接收模块1004，设置为：接收所述UE-to-Network relay转发的业务数据。
其中，所述发现模块1001包括：
第一接收单元，设置为：接收UE-to-Network relay发送的广播信息；
第一发现单元，设置为：根据所述广播信息，发现UE-to-Network relay；
或者，
所述发现模块1001，包括：
第一发送单元，设置为：发送UE-to-Network relay的查询请求信息；
第二接收单元，设置为：接收UE-to-Network relay的查询响应信息；
第二发现单元，设置为：根据所述查询响应信息，发现UE-to-Network relay。
其中，所述第一发送模块1002包括：
建立单元，设置为：通过PC5接口与UE-to-Network relay建立无线资源控制RRC连接；
第二发送单元，设置为：通过所述RRC连接向UE-to-Network relay发送所述请求消息。
其中，所述响应消息还包括以下之一：有效时间，地址标识；其中所述有效时间为UE-to-Network relay在所述有效时间监听网络侧发送的控制信令和/或转发数据到所述UE；地址标识用于指示UE通过多播承载接收业务数据时的地址信息。
其中，所述发现模块1001发现UE-to-Network relay和/或所述第一发送模块发送所述请求信息是通过公共安全频谱和/或LTE频谱进行的。
其中，所述第二接收模块1004通过单播承载或多播承载从 UE-to-Network relay接收业务数据。
其中，所述第一发送模块1003发送的请求消息用于请求UE-to-Network relay监听临时移动组标识TMGI；所述装置还包括：第三接收模块，设置为：接收所述UE-to-Network relay发送的监听到的用于通知TMGI的广播消息。
其中，所述请求信息包含临时移动组标识TMGI，其中TMGI为所述UE所需的业务标识，是在所述发现模块发现UE-to-Network relay之前获取的。
本发明实施例，当UE位于网络覆盖区域外时，UE通过发现UE-to-Network relay，将请求消息发送给UE-to-Network relay，请求UE-to-Network relay将该业务的数据发送给自己，当接收到响应消息后，确定UE-to-Network relay会将该业务的数据发送给自己，从而实现从所述UE-to-Network relay接收所述业务的数据的目的，实现UE位于网络覆盖范围外能够获取到业务的数据，提高公共安全通信的实时性和健壮性。
图11为本发明实施例提供的另一种中继通信的数据传输装置的结构示意图。图11所示装置包括：
第四接收模块1101，设置为：接收用户设备UE发送的请求消息；
第二发送模块1102，设置为：向所述UE发送响应消息；
获取模块1103，设置为：从网络侧获取业务数据；
第三发送模块1104，设置为：向所述UE发送所述业务数据。
其中，所述装置还包括：
第四发送模块，设置为：发送广播消息；或者，在接收到UE-to-Network relay的查询请求信息后，发送所述UE-to-Network relay的查询响应信息。
其中，所述响应消息包括业务标识，还可包括：有效时间，地址标识；其中所述有效时间为UE-to-Network relay在所述有效时间监听网络侧控制信令和/或转发数据到所述UE；地址标识用于指示UE通过多播承载接收业务数据时的地址信息。
其中，所述UE-to-Network relay通过单播承载或多播承载从网络侧获取 所述业务的数据。
其中，所述装置还包括：
监听模块，设置为：监听UE所需的临时移动组标识TMGI；
第五发送模块，设置为：当所述UE-to-Network relay发现所需的TMGI时，发送用于通知TMGI的广播消息。
其中，所述请求信息包含临时移动组标识TMGI，其中TMGI为UE所需的业务标识，是所述UE在发现UE-to-Network relay之前获取的。
本发明实施例，UE-to-Network relay在接收到请求信息后，确定UE请求该业务的数据，通过发送响应消息，告知UE本地会将该业务的数据发送给该UE，获取该业务的数据，并发送该业务的数据，实现UE从所述UE-to-Network relay接收所述业务的数据的目的，实现UE位于网络覆盖范围外能够获取到业务的数据，提高公共安全通信的实时性和健壮性。
本领域普通技术人员可以理解上述实施例的全部或部分步骤可以使用计算机程序流程来实现，所述计算机程序可以存储于一计算机可读存储介质中，所述计算机程序在相应的硬件平台上(如系统、设备、装置、器件等)执行，在执行时，包括方法实施例的步骤之一或其组合。
可选地，上述实施例的全部或部分步骤也可以使用集成电路来实现，这些步骤可以被分别制作成一个个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。
上述实施例中的各装置/功能模块/功能单元可以采用通用的计算装置来实现，它们可以集中在单个的计算装置上，也可以分布在多个计算装置所组成的网络上。
上述实施例中的各装置/功能模块/功能单元以软件功能模块的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。上述提到的计算机可读取存储介质可以是只读存储器，磁盘或光盘等。
工业实用性
本发明实施例，借助用户设备到网络中继实现覆盖区域外的UE和应用服务器的通信，实现UE位于网络覆盖范围外能够获取到业务的数据，提高公共安全通信的实时性和健壮性。

Claims (15)

  1. 一种中继通信的数据传输方法，包括：
    当用户设备UE位于网络覆盖区域外时，UE发现用户设备到网络中继UE-to-Network relay；
    所述UE向所述UE-to-Network relay发送请求消息；
    所述UE接收所述UE-to-Network relay发送的响应消息；
    所述UE接收所述UE-to-Network relay转发的业务数据。
  2. 根据权利要求1所述的方法，其中，所述UE发现用户设备到网络中继UE-to-Network relay，包括：
    所述UE接收UE-to-Network relay发送的广播信息，根据所述广播信息，发现UE-to-Network relay；或者，
    所述UE发送UE-to-Network relay的查询请求信息，接收UE-to-Network relay的查询响应信息，根据所述查询响应信息，发现UE-to-Network relay。
  3. 根据权利要求1所述的方法，其中，所述UE向所述UE-to-Network relay发送请求消息，包括：
    所述UE通过PC5接口与UE-to-Network relay建立无线资源控制RRC连接，并通过所述RRC连接向UE-to-Network relay发送所述请求消息。
  4. 根据权利要求1所述的方法，其中，所述响应消息包括：有效时间和/或地址标识；其中所述有效时间为UE-to-Network relay在所述有效时间监听网络侧发送的控制信令和/或转发数据到所述UE；地址标识用于指示UE通过多播承载接收业务数据时的地址信息。
  5. 根据权利要求1所述的方法，其中，所述UE发现UE-to-Network relay和/或所述UE发送所述请求信息是通过公共安全频谱和/或LTE频谱进行的。
  6. 根据权利要求1所述的方法，其中，所述UE通过单播承载或多播承载从UE-to-Network relay接收业务数据。
  7. 根据权利要求1所述的方法，其中：
    所述UE向所述UE-to-Network relay发送请求消息，包括：
    所述UE请求UE-to-Network relay监听临时移动组标识TMGI；
    所述方法还包括：
    所述UE接收所述UE-to-Network relay发送的监听到的用于通知TMGI的广播消息。
  8. 根据权利要求1至7任一所述的方法，其中，所述请求信息包含临时移动组标识TMGI，其中TMGI为所述UE所需的业务标识，是所述UE在发现UE-to-Network relay之前获取的。
  9. 一种中继通信的数据传输方法，包括：
    用户设备到网络中继UE-to-Network relay接收用户设备UE发送的请求消息；
    所述UE-to-Network relay向所述UE发送响应消息；
    所述UE-to-Network relay从网络侧获取业务数据；
    所述UE-to-Network relay向所述UE发送所述业务数据。
  10. 根据权利要求9所述的方法，所述方法还包括：
    所述UE-to-Network relay发送广播消息；或者，
    所述UE-to-Network relay在接收到UE-to-Network relay的查询请求信息后，发送所述UE-to-Network relay的查询响应信息。
  11. 根据权利要求9所述的方法，其中，所述UE-to-Network relay通过单播承载或多播承载从网络侧获取所述业务的数据。
  12. 根据权利要求9所述的方法，其中，所述UE-to-Network relay从网络侧接收TMGI对应的业务数据之前，所述方法还包括：
    所述UE-to-Network relay监听UE所需的临时移动组标识TMGI；
    当所述UE-to-Network relay发现所需的TMGI时，发送用于通知TMGI的广播消息。
  13. 一种中继通信的数据传输的装置，包括：
    发现模块，设置为：当用户设备UE位于网络覆盖区域外时，发现用户设备到网络中继UE-to-Network relay；
    第一发送模块，设置为：向所述UE-to-Network relay发送请求消息；
    第一接收模块，设置为：接收所述UE-to-Network relay发送的响应消息；
    第二接收模块，设置为：接收所述UE-to-Network relay转发的业务数据。
  14. 一种中继通信的数据传输装置，包括：
    第四接收模块，设置为：接收用户设备UE发送的请求消息；
    第二发送模块，设置为：向所述UE发送响应消息；
    获取模块，设置为：从网络侧获取业务数据；
    第三发送模块，设置为：向所述UE发送所述业务数据。
  15. 一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令用于执行权利要求1-12任一项的方法。
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018082541A1 (en) * 2016-11-04 2018-05-11 Huizhou Tcl Mobile Communication Co., Ltd Paging and connection establishment via relay devices in a wireless communication system
WO2020025064A1 (en) * 2018-08-03 2020-02-06 FG Innovation Company Limited Sidelink radio resource allocation
WO2023020276A1 (zh) * 2021-08-16 2023-02-23 大唐移动通信设备有限公司 组播广播业务数据传输方法、装置、设备以及存储介质

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114071678A (zh) * 2016-08-11 2022-02-18 中兴通讯股份有限公司 信息处理方法、装置、用户设备及基站
CN108307489A (zh) * 2016-08-11 2018-07-20 中兴通讯股份有限公司 信息处理方法、装置、用户设备及基站
CA3060010A1 (en) * 2017-04-28 2018-11-01 Guangdong Oppo Mobile Telecommunications Corp., Ltd. D2d communication method, remote user equipment, and relay user equipment
US10631224B2 (en) 2017-10-05 2020-04-21 Blackberry Limited Authenticating user equipments through relay user equipments
CN113365325B (zh) * 2021-05-18 2023-07-04 南京大鱼半导体有限公司 数据传输方法、装置、存储介质及电子设备
WO2023092482A1 (zh) * 2021-11-26 2023-06-01 Oppo广东移动通信有限公司 一种通过中继终端进行通信的方法及装置、终端

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1582590A (zh) * 2001-12-21 2005-02-16 株式会社日立制作所 使用具有中继功能的移动台的移动通信网以及用于奖励移动台的中继活动的方法
CN102469410A (zh) * 2010-11-02 2012-05-23 中国移动通信集团公司 一种数据传输方法、设备及系统
CN103906266A (zh) * 2012-12-31 2014-07-02 中兴通讯股份有限公司 无线通信方法、用户设备、网络设备及系统
EP2785092A1 (en) * 2013-03-28 2014-10-01 Fujitsu Limited Wireless communication system
CN104105155A (zh) * 2013-04-01 2014-10-15 中兴通讯股份有限公司 接收设备发现信息、发送设备发现信息的方法和用户设备

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1582590A (zh) * 2001-12-21 2005-02-16 株式会社日立制作所 使用具有中继功能的移动台的移动通信网以及用于奖励移动台的中继活动的方法
CN102469410A (zh) * 2010-11-02 2012-05-23 中国移动通信集团公司 一种数据传输方法、设备及系统
CN103906266A (zh) * 2012-12-31 2014-07-02 中兴通讯股份有限公司 无线通信方法、用户设备、网络设备及系统
EP2785092A1 (en) * 2013-03-28 2014-10-01 Fujitsu Limited Wireless communication system
CN104105155A (zh) * 2013-04-01 2014-10-15 中兴通讯股份有限公司 接收设备发现信息、发送设备发现信息的方法和用户设备

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
ALCATEL -LUCENT.: "EMBMS Relay", SA WG2 MEETING #101BIS, 21 February 2014 (2014-02-21), San Jose Del Cabo, Mexico, pages 2 - 140629 *
HUAWEI ET AL.: "ProSe UE-to-Network Relay with EMBMS", 3GPP TSG SA WG2 MEETING #105, 13 October 2014 (2014-10-13), Sapporo, Japan, pages 2 - 143238 *
ZTE.: "Reuse the ProSe Layer-2 Group ID for eMBMS Traffic Relay", SA WG2 MEETING #107, 26 January 2015 (2015-01-26), Sorrento, Italy, pages 2 - 150058 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018082541A1 (en) * 2016-11-04 2018-05-11 Huizhou Tcl Mobile Communication Co., Ltd Paging and connection establishment via relay devices in a wireless communication system
WO2020025064A1 (en) * 2018-08-03 2020-02-06 FG Innovation Company Limited Sidelink radio resource allocation
US11457431B2 (en) 2018-08-03 2022-09-27 FG Innovation Company Limited Sidelink radio resource allocation
WO2023020276A1 (zh) * 2021-08-16 2023-02-23 大唐移动通信设备有限公司 组播广播业务数据传输方法、装置、设备以及存储介质

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