WO2014059891A1 - 长期演进系统中的设备间通信方法及长期演进基站、终端 - Google Patents

长期演进系统中的设备间通信方法及长期演进基站、终端 Download PDF

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Publication number
WO2014059891A1
WO2014059891A1 PCT/CN2013/084968 CN2013084968W WO2014059891A1 WO 2014059891 A1 WO2014059891 A1 WO 2014059891A1 CN 2013084968 W CN2013084968 W CN 2013084968W WO 2014059891 A1 WO2014059891 A1 WO 2014059891A1
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Prior art keywords
inter
terminal
device communication
lte
base station
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PCT/CN2013/084968
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English (en)
French (fr)
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李男
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中国移动通信集团公司
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Publication of WO2014059891A1 publication Critical patent/WO2014059891A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/51Allocation or scheduling criteria for wireless resources based on terminal or device properties

Definitions

  • the present invention relates to the field of data communication technologies, and in particular, to an inter-device communication method in a Long Term Evolution (LTE) system, and a long-term evolution base station and a terminal.
  • LTE Long Term Evolution
  • the 3rd Generation Partnership Project may conduct research projects on communication between devices based on LTE technology after September, because the communication resources between the devices based on the cellular network will use the frequency resources of the public network. If it can not be properly managed and scheduled, it will affect the network quality of the macro cell. Summary of the invention
  • the present invention provides an inter-device communication method in an LTE system, and an LTE base station and an LTE terminal, to implement reasonable configuration of public network resources for communication between devices based on a cellular network.
  • a method for inter-device communication in a long term evolution LTE system comprising:
  • the LTE terminal sends an inter-device communication request message to the LTE base station, where the message carries the terminal and the terminal The identity of the target terminal for communication;
  • the LTE base station receives the message, and determines whether the target terminal is a cell terminal. If yes, the LTE base station configures an inter-device communication resource for the two terminals; otherwise, the LTE base station negotiates with the serving base station of the target terminal as the two terminals. Configure inter-device communication resources;
  • an inter-device communication confirmation message to the LTE terminal, where the message carries inter-device communication resource information configured by the two terminals; and the LTE terminal receives the inter-device communication confirmation message, according to the device-to-device in the message Communication resource information, communicating with the target terminal.
  • the method further includes:
  • the LTE terminal sends an inter-device communication configuration notification message to the target terminal, where the message carries the inter-device communication resource information, and after receiving the message, the target terminal communicates with the LTE terminal according to the inter-device communication resource information.
  • the inter-device communication request message further carries role information played by the LTE terminal in inter-device communication: a primary role or a secondary role;
  • the LTE base station negotiates with the serving base station of the target terminal to configure the inter-device communication resources for the two terminals: the two base stations are mainly required by the terminal playing the primary role, and negotiate the inter-device communication resources for the two terminals.
  • a method for inter-device communication in a long term evolution LTE system comprising:
  • the LTE terminal sends an inter-device communication request message to the LTE base station, where the message carries the inter-device communication resource information pre-enabled by the terminal;
  • the LTE base station receives the inter-device communication request message, and determines, for each subframe pointed to by the pre-used inter-device communication resource information carried in the message, whether the transmission direction of the subframe is different from the transmission direction of the subframe configured by the base station. The same, if yes, the LTE base station determines that the subframe can be configured for the LTE The LTE base station determines whether the LTE terminal will interfere with other terminals pre-scheduled on the subframe, and if the LTE base station re-configures resources for other terminals, Or re-configuring the inter-device communication resource for the LTE terminal, if not, the LTE base station determines that the subframe can be configured to the LTE terminal as an inter-device communication resource;
  • the LTE base station returns an inter-device communication confirmation message to the LTE terminal, where the message carries the inter-device communication resource information configured for the LTE terminal, when the acknowledgment is completed for each of the sub-frames that are used by the inter-device communication resource information.
  • the LTE terminal receives the inter-device communication confirmation message, and communicates with the target terminal according to the inter-device communication resource information in the message.
  • the method further includes:
  • the LTE terminal sends an inter-device communication configuration notification message to the target terminal, where the message carries inter-device communication resource information, and after receiving the message, the target terminal communicates with the LTE terminal according to the inter-device communication resource information.
  • the pre-inter-device communication resource information is subframe information, or is subframe information and frequency resource information used in the subframe.
  • the inter-device communication request message further carries an identifier of the target terminal that communicates with the LTE terminal, or further carries an identifier of the target terminal that communicates with the LTE terminal and a role played by the LTE terminal in inter-device communication Information: Primary role or secondary role.
  • Configuring the LTE base station to re-configure the inter-device communication resources for the LTE terminal includes:
  • the LTE base station determines whether the target terminal is a cell terminal, and if yes, the LTE base station configures an inter-device communication resource for the two terminals; otherwise, the LTE base station negotiates with the serving base station of the target terminal to configure inter-device communication for the two terminals. Resources.
  • the inter-device communication request message carries role information played by the LTE terminal in inter-device communication: a primary role or a secondary role,
  • the LTE base station negotiates with the serving base station of the target terminal to configure the inter-device communication resources for the two terminals: the two base stations are mainly required by the terminal playing the primary role, and negotiate the inter-device communication resources for the two terminals.
  • the LTE base station After the LTE base station determines that the transmission direction of the subframe is the same as the transmission direction of the subframe configured by the local base station, the LTE base station further includes:
  • the LTE base station determines whether the remaining communication resources in the system are smaller than the preset resource threshold. If yes, it is determined that the subframe can be scheduled to be used by other terminals; otherwise, the subframe is no longer scheduled to other terminals.
  • the LTE base station After the LTE base station determines that the transmission direction of the subframe is the same as the transmission direction of the subframe configured by the local base station, the LTE base station further includes:
  • the LTE base station finds that the feedback information configured by the LTE terminal needs to be transmitted in the subframe, the bearer location of the information is changed, and the changed bearer location information is notified to the LTE terminal.
  • a method for inter-device communication in a long term evolution LTE system comprising:
  • the LTE terminal sends an inter-device communication request message to the LTE base station, where the message carries the inter-device communication resource information pre-enabled by the terminal;
  • the LTE base station receives the inter-device communication request message, and determines, for each subframe pointed to by the pre-used inter-device communication resource information carried in the message, whether the base station has carried important system information in the subframe, and if so, The LTE base station reconfigures the inter-device communication resource for the LTE terminal; otherwise, the LTE base station determines that the subframe can be configured to the LTE terminal as the inter-device communication resource.
  • the LTE base station returns an inter-device communication confirmation message to the LTE terminal, where the message carries inter-device communication resource information configured for the LTE terminal;
  • the LTE terminal receives the inter-device communication confirmation message, and communicates with the target terminal according to the inter-device communication resource information in the message.
  • the method further includes:
  • the LTE terminal sends an inter-device communication configuration notification message to the target terminal, where the message carries the inter-device communication resource information, and after receiving the message, the target terminal communicates with the LTE terminal according to the inter-device communication resource information.
  • the inter-device communication request message further carries an identifier of the target terminal that communicates with the LTE terminal, or further carries an identifier of the target terminal that communicates with the LTE terminal and a role played by the LTE terminal in inter-device communication Information: Primary role or secondary role.
  • Configuring the LTE base station to re-configure the inter-device communication resources for the LTE terminal includes:
  • the LTE base station determines whether the target terminal is a cell terminal. If yes, the LTE base station configures inter-device communication resources for the two terminals; otherwise, the LTE base station negotiates with the serving base station of the target terminal to configure inter-device communication resources for the two terminals.
  • the inter-device communication request message carries role information played by the LTE terminal in inter-device communication: a primary role or a secondary role,
  • the LTE base station negotiates with the serving base station of the target terminal to configure the inter-device communication resources for the two terminals: the two base stations are mainly required by the terminal playing the primary role, and negotiate the inter-device communication resources for the two terminals.
  • the pre-inter-device communication resource information is subframe information, or is used in subframe information and a subframe. Frequency resource information used.
  • the important system information is paging information, or broadcast information, or scheduling information to be transmitted to the terminal.
  • a method for inter-device communication in a long term evolution LTE system comprising:
  • the LTE terminal sends an inter-device communication request message to the LTE base station, where the message carries the identifier of the target terminal that communicates with the terminal, or
  • a long term evolution LTE terminal includes:
  • Requesting module transmitting an inter-device communication request message to an LTE base station, and receiving an LTE base station or target
  • the inter-device communication resource information sent by the terminal is sent to the communication module, where the inter-device communication request message carries the identifier of the target terminal that communicates with the terminal, or carries the communication with the terminal.
  • the communication module communicates with the target terminal according to the communication resource information between the devices sent by the requesting module.
  • the requesting module is further configured to: when receiving the inter-device communication resource information sent by the LTE base station, send the communication resource information to the target terminal.
  • a long term evolution LTE base station includes:
  • Messaging module Receive inter-device communication with the target terminal identifier sent by the LTE terminal. And requesting the message, forwarding the message to the resource configuration module; receiving the inter-device communication resource information sent by the resource configuration module, and transmitting the communication resource information in the inter-device communication confirmation message to the LTE terminal;
  • the resource configuration module receiving the inter-device communication request message, determining whether the target terminal is a cell terminal, and if yes, configuring an inter-device communication resource for the two terminals; otherwise, negotiating with the serving terminal of the target terminal to configure the device between the two terminals After the communication resource is configured, the configured communication resource information of the device is sent to the message transceiver module.
  • the inter-device communication request message received by the messaging module further carries the role information played by the LTE terminal in the inter-device communication: a primary role or a secondary role;
  • the resource configuration module is further configured to, when negotiating with the serving base station of the target terminal, configure the inter-device communication resources for the two terminals, and negotiate with the demand of the terminal playing the main role.
  • a long term evolution LTE base station includes:
  • the message transceiving module receiving an inter-device communication request message sent by the LTE terminal and carrying the inter-device communication resource information pre-used by the terminal, forwarding the message to the resource configuration module, and receiving the inter-device communication resource information sent by the resource configuration module, Transmitting the communication resource information in an inter-device communication confirmation message to the LTE terminal;
  • the resource configuration module receiving the inter-device communication request message, determining, for each subframe in the inter-device communication resource pre-used by the LTE terminal, whether the transmission direction of the subframe is different from the transmission direction of the subframe configured by the base station If yes, determining that the subframe can be configured to the LTE terminal as an inter-device communication resource; otherwise, determining whether the subframe is configured to the LTE terminal to interfere with other terminals pre-scheduled on the subframe, If yes, re-configure resources for other terminals, or re-configure inter-device communication resources for the LTE terminal, if not, determine that the subframe can be configured for the LTE The terminal serves as an inter-device communication resource. When each sub-frame in the inter-device communication resource is confirmed, the inter-device communication resource information configured for the LTE terminal is sent to the message transceiving module.
  • the inter-device communication request message received by the messaging module further carries the identifier of the target terminal that communicates with the LTE terminal, or further carries the identifier of the target terminal that communicates with the LTE terminal, and the LTE terminal communicates between the devices.
  • the resource configuration module is further configured to: when the inter-device communication resource is re-configured for the LTE terminal, determine whether the target terminal is a cell terminal, and if yes, configure inter-device communication resources for the two terminals; otherwise, target terminal The serving base station negotiates to configure inter-device communication resources for the two terminals.
  • the inter-device communication request message received by the messaging module carries the role information played by the LTE terminal in inter-device communication: a primary role or a secondary role,
  • the resource configuration module is further configured to, when negotiating with the serving base station of the target terminal, configure the inter-device communication resources for the two terminals, and negotiate with the demand of the terminal playing the main role.
  • the resource configuration module is further configured to: after determining that the transmission direction of the subframe is the same as the transmission direction of the subframe configured by the local base station, determine whether the remaining communication resources in the system are smaller than a preset resource threshold, and if yes, determine that The subframe continues to be scheduled for use by other terminals; otherwise, the subframe is no longer scheduled to other terminals.
  • the resource configuration module is further configured to: if it is found that the feedback information configured by the LTE terminal needs to be transmitted in the subframe, change a bearer location of the information, and notify the LTE terminal of the changed bearer location information.
  • a long term evolution LTE base station includes:
  • the messaging module receiving the inter-device communication resource sent by the LTE terminal and carrying the terminal pre-use
  • the inter-device communication request message of the source information is forwarded to the resource configuration module, and the inter-device communication resource information sent by the resource configuration module is received, and the communication resource information is carried in the inter-device communication confirmation message and sent to the LTE terminal. ;
  • the resource configuration module receiving the inter-device communication request message, determining, for each subframe in the inter-device communication resource pre-used by the LTE terminal, whether the base station has carried important system information on the subframe, and if so, re Configuring an inter-device communication resource for the LTE terminal; otherwise, determining that the subframe can be configured to the LTE terminal as an inter-device communication resource; when each subframe in the pre-used inter-device communication resource is confirmed, The inter-device communication resource information configured for the LTE terminal is sent to the messaging module.
  • the inter-device communication request message received by the messaging module further carries the identifier of the target terminal that communicates with the LTE terminal, or further carries the identifier of the target terminal that communicates with the LTE terminal, and the terminal communicates between the devices.
  • the resource configuration module is further configured to: when re-configuring the inter-device communication resource for the LTE terminal, determine whether the target terminal is a cell terminal, and if yes, configure inter-device communication resources for the two terminals; otherwise, interact with the target terminal
  • the serving base station negotiates to configure inter-device communication resources for the two terminals.
  • the inter-device communication request message received by the messaging module carries the role information played by the LTE terminal in inter-device communication: a primary role or a secondary role,
  • the resource configuration module is further configured to, when negotiating with the serving base station of the target terminal, configure the inter-device communication resources for the two terminals, and negotiate with the demand of the terminal playing the main role.
  • the present invention can reasonably configure public network resources for communication between devices based on a cellular network, and avoids the influence of communication between devices on public network communication.
  • FIG. 1 is a flowchart of a method for communication between devices in an LTE system according to Embodiment 1 of the present invention
  • FIG. 2 is a flowchart of a method for communication between devices in an LTE system according to Embodiment 2 of the present invention
  • a flowchart of a method for communication between devices in an LTE system is provided
  • FIG. 4 is a schematic diagram of a composition of an LTE base station according to Embodiment 1 of the present invention.
  • FIG. 5 is a schematic structural diagram of an LTE terminal according to an embodiment of the present invention.
  • FIG. 1 is a flowchart of a method for communication between devices in an LTE system according to Embodiment 1 of the present invention. As shown in FIG. 1, the specific steps are as follows:
  • Step 101 The LTE terminal sends an inter-device communication request message to the LTE base station, where the message carries the identifier of the target terminal that communicates with the terminal.
  • the inter-device communication request message may further carry role information played by the terminal in the inter-device communication, such as a master role or a slave role.
  • Step 102 The base station receives the inter-device communication request message, and parses the identifier of the target terminal from the message.
  • Step 103 The base station determines whether the target terminal is the cell terminal, and if yes, performs step 104; otherwise, performs step 105.
  • Step 104 The base station configures inter-device communication resources for the two terminals, and proceeds to step 106.
  • Step 105 The base station negotiates with the serving base station of the target terminal to configure inter-device communication resources for the two terminals.
  • the base station may negotiate with the serving base station of the target terminal through the X2 interface or through the core network; Further, if the inter-device communication request message sent by the terminal also carries the role information played by the terminal in the inter-device communication, when the two base stations negotiate to configure the inter-device communication resources for the two terminals, they may play the role of master.
  • the needs of the terminal are mainly negotiated.
  • Step 106 The base station returns an inter-device communication confirmation message to the terminal, where the message carries the inter-device communication resource information configured for the two terminals.
  • Step 107 The terminal receives the inter-device communication confirmation message, and communicates with the target terminal according to the inter-device communication resource information in the message.
  • the terminal may first send an inter-device communication configuration notification message to the target terminal, where the message carries the inter-device communication resource information, and after the target terminal receives the message, according to the inter-device communication Resource information, communicating with the terminal.
  • 2 is a flowchart of a method for communication between devices in an LTE system according to Embodiment 2 of the present invention. As shown in FIG. 2, the specific steps are as follows:
  • Step 201 The LTE terminal sends an inter-device communication request message to the LTE base station, where the message carries the inter-device communication resource information pre-used by the terminal.
  • the pre-inter-device communication resource information may be subframe information, or may be subframe information and frequency resource information used in the subframe.
  • the inter-device communication request message in this step may further carry the identifier of the target terminal that communicates with the terminal, or further carry the identifier of the target terminal that communicates with the terminal and the role information played by the terminal in the inter-device communication.
  • Step 202 The base station receives the inter-device communication request message, and parses the pre-inter-device communication resource information from the message.
  • Step 203 For each subframe in the pre-used inter-device communication resource, the base station determines whether the transmission direction of the subframe is the same as the transmission direction of the subframe configured by the base station, and if yes, perform step 204; otherwise, perform steps 205.
  • Step 204 The base station determines that the subframe can be configured to the terminal as an inter-device communication resource, and proceeds to step 208.
  • the base station may further determine whether the remaining resources in the system are smaller than the preset resource threshold. If yes, determine that the subframe may also be scheduled for use by other terminals; otherwise, the subframe is no longer scheduled to other terminals.
  • the bearer position of the information is changed, and the information is changed.
  • the subsequent bearer location information informs the terminal.
  • Step 205 The base station determines, if the subframe is configured to the terminal, whether the terminal will interfere with other terminals pre-scheduled on the subframe, if yes, go to step 206; otherwise, go to step 207.
  • the base station may determine, according to the following manner, whether the configuration of the subframe to the terminal interferes with other terminals pre-scheduled on the subframe:
  • the base station determines whether the distance between the terminal and the other terminal is less than a preset distance threshold, and if so, determines that interference occurs.
  • Step 206 The base station re-configures resources for other terminals, and proceeds to step 208.
  • This step can also be replaced by one of the following two:
  • the base station reconfigures communication resources between devices for the terminal.
  • the base station may configure the inter-device communication resource for the terminal through steps 103-105. 2.
  • the base station directly returns an inter-device communication rejection message to the terminal, and the process ends here.
  • Step 207 The base station determines that the subframe can be configured to the terminal as an inter-device communication resource.
  • Step 209 The base station returns an inter-device communication confirmation message to the terminal, where the message carries the inter-device communication resource information configured for the terminal.
  • Step 210 The terminal receives the inter-device communication confirmation message, and communicates with the target terminal according to the inter-device communication resource information in the message.
  • FIG. 3 is a flowchart of a method for communication between devices in an LTE system according to Embodiment 3 of the present invention. As shown in FIG. 3, the specific steps are as follows:
  • Step 301 The LTE terminal sends an inter-device communication request message to the LTE base station, where the message carries the inter-device communication resource information pre-used by the terminal.
  • the pre-inter-device communication resource information may be subframe information, or may be subframe information and frequency resource information used in the subframe.
  • the inter-device communication request message in this step may further carry the identifier of the target terminal that communicates with the terminal A, or further carry the identifier of the target terminal that communicates with the terminal and the role information played by the terminal in the inter-device communication. .
  • Step 302 The base station receives the inter-device communication request message, and parses the pre-used information from the message. Communication resource information between devices.
  • Step 303 For each subframe in the pre-used inter-device communication resource, the base station determines whether it has carried important system information on the subframe, and if yes, performs step 304; otherwise, performs step 305.
  • Step 304 The base station reconfigures the inter-device communication resource for the terminal, and proceeds to step 306.
  • important system information is, for example, paging information of the terminal or other important broadcast, scheduling information, and the like.
  • the base station may configure the inter-device communication resource for the terminal through steps 103-105.
  • This step can also be replaced by: The base station directly returns an inter-device communication rejection message to the terminal, and the process ends here.
  • Step 305 The base station determines that the subframe can be configured to the terminal as an inter-device communication resource.
  • Step 306 The base station determines whether each of the pre-inter-device communication resources is acknowledged, and if yes, performs step 307; otherwise, returns to step 303 to continue confirming the next subframe.
  • Step 307 The base station returns an inter-device communication confirmation message to the terminal, where the message carries the inter-device communication resource information configured for the terminal.
  • Step 308 The terminal receives the inter-device communication confirmation message, and communicates with the target terminal according to the inter-device communication resource information in the message.
  • the terminal may first send an inter-device communication configuration notification message to the target terminal, where the message carries the inter-device communication resource information, and after the target terminal receives the message, according to the inter-device communication Resource information, communicating with the terminal.
  • the base station can charge the inter-device communication of the terminal according to the number of times of the inter-device communication request initiated by the terminal or the inter-device communication resource configured by the terminal.
  • FIG. 4 is a schematic structural diagram of an LTE base station according to Embodiment 1 of the present invention. As shown in FIG. 4, the method mainly includes: a message sending and receiving module 41 and a resource configuration module 42, where:
  • the message transceiving module 41 receives an inter-device communication request message that carries the target terminal identifier sent by the LTE terminal, forwards the message to the resource configuration module 42, and receives the inter-device communication resource information sent by the resource configuration module 42, and the communication resource is used. The information is carried back to the LTE terminal in the inter-device communication confirmation message.
  • the resource configuration module 42 receiving an inter-device communication request message sent by the messaging module 41, determining, according to the target terminal identifier in the message, whether the target terminal is a cell terminal, and if so, configuring inter-device communication resources for the two terminals, otherwise And the service base station of the target terminal is configured to configure the inter-device communication resource for the two terminals, and the configuration is completed, and the configured inter-device communication resource information is sent to the message transceiver module 41.
  • the inter-device communication request message received by the messaging module 41 may further carry the role information played by the LTE terminal in the inter-device communication: the primary role or the secondary role.
  • the resource configuration module 42 is further configured to: when negotiating with the serving base station of the target terminal to configure the inter-device communication resources for the two terminals, the negotiation is performed mainly by the needs of the terminal playing the primary role.
  • the following provides the composition of the LTE base station provided by the second embodiment of the present invention, which mainly includes a message transceiver module and a resource configuration module, where:
  • the messaging module receiving the inter-device communication carried by the LTE terminal and carrying the pre-use of the LTE terminal
  • the inter-device communication request message of the resource information is forwarded to the resource configuration module, and the inter-device communication resource information sent by the resource configuration module is received, and the communication resource information is carried in the inter-device communication confirmation message and returned to the LTE terminal.
  • a resource configuration module receiving an inter-device communication request message sent by the messaging module, according to the inter-device communication resource information pre-used by the LTE terminal in the message, for each subframe in the inter-device communication resource pre-used by the LTE terminal Determining whether the transmission direction of the subframe is the same as the transmission direction of the subframe configured by the base station, and if so, determining that the subframe can be configured to the LTE terminal as an inter-device communication resource; otherwise, determining that the subframe is configured to Whether the LTE terminal will interfere with other terminals pre-scheduled on the subframe, and if so, re-configure resources for other terminals, or re-configure inter-device communication resources for the LTE terminal, if not, determine that the subframe can be configured.
  • the LTE terminal is used as the inter-device communication resource.
  • the inter-device communication request message received by the messaging module may further carry the identifier of the target terminal that communicates with the terminal, or further carry the identifier of the target terminal that communicates with the terminal and play the role of the terminal in the inter-device communication.
  • Role information primary role or secondary role;
  • the resource configuration module may be further configured to: when the inter-device communication resource is re-configured for the LTE terminal, determine whether the target terminal is a cell terminal, and if yes, configure inter-device communication resources for the two terminals; otherwise, the serving base station with the target terminal Negotiate to configure inter-device communication resources for the two terminals.
  • the resource configuration module may be further configured to: when negotiating with the serving base station of the target terminal When two terminals configure communication resources between devices, they negotiate mainly based on the needs of the terminal playing the main role.
  • the resource configuration module may be further configured to: after determining that the transmission direction of the subframe is the same as the transmission direction of the subframe configured by the local base station, determine whether the remaining communication resource in the system is smaller than a preset resource threshold, and if yes, determine that the The subframe continues to be scheduled for use by other terminals; otherwise, the subframe is no longer scheduled to other terminals.
  • the resource configuration module is further configured to: if it is found that the feedback information configured by the LTE terminal needs to be transmitted in the subframe, change the bearer location of the information, and notify the LTE terminal of the changed bearer location information.
  • the following is a composition of an LTE base station according to Embodiment 3 of the present invention, which mainly includes a message transceiver module and a resource configuration module, where:
  • the message transceiving module receiving an inter-device communication request message sent by the LTE terminal and carrying the inter-device communication resource information pre-used by the LTE terminal, forwarding the message to the resource configuration module, and receiving the inter-device communication resource information sent by the resource configuration module And transmitting the communication resource information in the inter-device communication confirmation message to the LTE terminal.
  • a resource configuration module receiving an inter-device communication request message sent by the messaging module, according to the inter-device communication resource information pre-used by the LTE terminal in the message, for each subframe in the inter-device communication resource pre-used by the LTE terminal Determining whether the base station has carried important system information on the subframe, and if so, reconfiguring the inter-device communication resource for the LTE terminal; otherwise, determining that the subframe can be configured to the LTE terminal as an inter-device communication resource; When each subframe in the pre-device communication resource is confirmed, the inter-device communication resource information configured for the LTE terminal is sent to the message transmitting and receiving module.
  • the inter-device communication request message received by the messaging module may be further carried with the terminal.
  • the identifier of the target terminal of the communication or further carries the identifier of the target terminal that communicates with the terminal and the role information played by the terminal in the inter-device communication: the primary role or the secondary role;
  • the resource configuration module may be further configured to: when the inter-device communication resource is re-configured for the LTE terminal, determine whether the target terminal is a cell terminal, and if yes, configure inter-device communication resources for the two terminals; otherwise, the serving base station with the target terminal Negotiate to configure inter-device communication resources for the two terminals.
  • FIG. 5 is a schematic structural diagram of an LTE terminal according to an embodiment of the present invention. As shown in FIG. 5, the method mainly includes: a requesting module 51 and a communication module 52, where:
  • the requesting module 51 sends an inter-device communication request message to the LTE base station, where the message carries the identifier of the target terminal that communicates with the terminal, or carries the identifier of the target terminal that communicates with the terminal, and plays the role of the terminal in the inter-device communication.
  • Role information The primary role or the secondary role, or the inter-device communication subframe information pre-used by the terminal, or the inter-device communication subframe information pre-used by the terminal and the frequency resource information used in the subframe, or carry the terminal Pre-device inter-device communication subframe information and an identifier of a target terminal that communicates with the terminal, or an inter-device communication subframe information pre-used by the terminal, an identifier of a target terminal that communicates with the terminal, and the terminal device Role information played in the intercommunication: the primary role or the secondary role, or the inter-device communication subframe information pre-used by the terminal and the frequency resource information used in the subframe and the identity of the target terminal communicating with the terminal, or carried Inter-device communication subframe information pre-used by the terminal and frequency resource information used in the subframe
  • the final The identifier of the target terminal that communicates with the terminal and the role information played by the terminal in the inter-device communication: the primary role or the secondary role; receiving the inter-device communication
  • the requesting module 51 is further configured to: when receiving the inter-device communication resource information sent by the LTE base station, send the communication resource information to the target terminal.
  • the communication module 52 communicates with the target terminal according to the inter-device communication resource information sent from the request module 51.

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Abstract

本发明公开了长期演进系统中的设备间通信方法及长期演进基站、终端。方法包括:LTE终端向LTE基站发送设备间通信请求消息,该消息携带与该终端进行通信的目标终端的标识;基站接收该消息,判断目标终端是否为本小区终端,若是,基站为该两终端配置设备间通信资源;否则,基站与目标终端的服务基站协商为该两终端配置设备间通信资源;基站向该终端返回设备间通信确认消息,该消息携带为该两终端配置的设备间通信资源信息;终端接收该设备间通信确认消息,根据该消息中的设备间通信资源信息,与目标终端进行通信。本发明可以合理为基于蜂窝网的设备间通信配置公网资源,避免了设备间通信对公网通信的影响。

Description

长期演进系统中的设备间通信方法及长期演进基站、 终端 本申请要求于 2012 年 10 月 18 日提交中国专利局、 申请号为 201210397506.1、 发明名称为"长期演进系统中的设备间通信方法及长期演进 基站"的中国专利申请的优先权, 其全部内容通过引用结合在本申请中。 技术领域
本发明涉及数据通信技术领域, 具体涉及长期演进(LTE, Long Term Evolution ) 系统中的设备间通信方法及长期演进基站、 终端。 背景技术
第三代合作伙伴项目 ( 3GPP, 3rd Generation Partnership Project )可能将 在 9月份之后开展基于 LTE技术的设备之间通信的研究项目, 由于基于蜂窝 网下的设备间通信将使用公网的频率资源,如果不能对其进行合理的管控和调 度, 则会影响到宏蜂窝的网络质量。 发明内容
本发明提供 LTE系统中的设备间通信方法及 LTE基站、 LTE终端, 以实 现基于蜂窝网的设备间通信的公网资源的合理配置。
本发明的技术方案是这样实现的:
一种长期演进 LTE系统中的设备间通信方法, 该方法包括:
LTE终端向 LTE基站发送设备间通信请求消息, 该消息携带与该终端进 行通信的目标终端的标识;
所述 LTE基站接收该消息, 判断目标终端是否为本小区终端, 若是, 所 述 LTE基站为该两终端配置设备间通信资源; 否则, 所述 LTE基站与目标终 端的服务基站协商为该两终端配置设备间通信资源;
所述 LTE基站向所述 LTE终端返回设备间通信确认消息, 该消息携带为 该两终端配置的设备间通信资源信息; 所述 LTE终端接收该设备间通信确认 消息, 根据该消息中的设备间通信资源信息, 与目标终端进行通信。
所述 LTE终端接收该设备间通信确认消息之后进一步包括:
所述 LTE终端向目标终端发送设备间通信配置通知消息, 该消息携带所 述设备间通信资源信息, 目标终端接收到该消息后,根据该设备间通信资源信 息, 与该 LTE终端进行通信。
所述设备间通信请求消息进一步携带所述 LTE终端在设备间通信中扮演 的角色信息: 主角色或从角色;
所述 LTE基站与目标终端的服务基站协商为该两终端配置设备间通信资 源为: 该两基站以扮演主角色的终端的需求为主,协商为该两终端配置设备间 通信资源。
一种长期演进 LTE系统中的设备间通信方法, 该方法包括:
LTE终端向 LTE基站发送设备间通信请求消息, 该消息携带该终端预使 用的设备间通信资源信息;
所述 LTE基站接收该设备间通信请求消息, 对于该消息携带的预使用的 设备间通信资源信息指向的每个子帧,判断该子帧的传输方向是否与本基站配 置的该子帧的传输方向相同, 若是, LTE基站确定该子帧可以配置给所述 LTE 终端作为设备间通信资源; 否则, LTE基站判断若将该子帧配置给所述 LTE 终端是否会对该子帧上预调度的其它终端产生干扰, 若会, LTE基站重新为其 它终端配置资源, 或者重新为所述 LTE终端配置设备间通信资源, 若不会, LTE基站确定该子帧可以配置给所述 LTE终端作为设备间通信资源;
当对预使用的设备间通信资源信息指向的每个子帧都确认完毕时, LTE基 站向所述 LTE终端返回设备间通信确认消息, 该消息携带为所述 LTE终端配 置的设备间通信资源信息;
所述 LTE终端接收该设备间通信确认消息, 根据该消息中的设备间通信 资源信息, 与目标终端进行通信。
所述 LTE终端接收该设备间通信确认消息之后进一步包括:
所述 LTE终端向目标终端发送设备间通信配置通知消息, 该消息携带设 备间通信资源信息, 目标终端接收到该消息后, 根据该设备间通信资源信息, 与所述 LTE终端进行通信。
所述预使用的设备间通信资源信息为子帧信息,或者为子帧信息及子帧中 使用的频率资源信息。
所述设备间通信请求消息进一步携带与所述 LTE终端进行通信的目标终 端的标识, 或者进一步携带与所述 LTE终端进行通信的目标终端的标识及所 述 LTE终端在设备间通信中扮演的角色信息: 主角色或从角色。
所述 LTE基站重新为所述 LTE终端配置设备间通信资源包括:
所述 LTE基站判断目标终端是否为本小区终端, 若是, 所述 LTE基站为 该两终端配置设备间通信资源; 否则, 所述 LTE基站与目标终端的服务基站 协商为该两终端配置设备间通信资源。 当所述设备间通信请求消息携带所述 LTE终端在设备间通信中扮演的角 色信息: 主角色或从角色时,
所述 LTE基站与目标终端的服务基站协商为该两终端配置设备间通信资 源为: 该两基站以扮演主角色的终端的需求为主,协商为该两终端配置设备间 通信资源。
当所述 LTE基站判定该子帧的传输方向与本基站配置的该子帧的传输方 向相同之后进一步包括:
所述 LTE基站判断系统中的剩余通信资源是否小于预设资源门限, 若是, 确定能将该子帧继续调度给其它终端使用; 否则, 不再将该子帧调度给其它终 端。
当所述 LTE基站判定该子帧的传输方向与本基站配置的该子帧的传输方 向相同之后进一步包括:
所述 LTE基站若发现该子帧上有所述 LTE终端已配置的反馈信息需要传 输, 则更改该信息的承载位置, 并将更改后的承载位置信息告知所述 LTE终 端。
一种长期演进 LTE系统中的设备间通信方法, 该方法包括:
LTE终端向 LTE基站发送设备间通信请求消息, 该消息携带该终端预使 用的设备间通信资源信息;
所述 LTE基站接收该设备间通信请求消息, 对于该消息携带的预使用的 设备间通信资源信息指向的每个子帧,判断本基站是否已在该子帧上承载了重 要系统信息, 若是, 所述 LTE基站重新为所述 LTE终端配置设备间通信资源; 否则, 所述 LTE基站确定该子帧可以配置给所述 LTE终端作为设备间通信资 源;
所述 LTE基站向所述 LTE终端返回设备间通信确认消息, 该消息携带为 所述 LTE终端配置的设备间通信资源信息;
所述 LTE终端接收该设备间通信确认消息, 根据该消息中的设备间通信 资源信息, 与目标终端进行通信。
所述 LTE终端接收该设备间通信确认消息之后进一步包括:
所述 LTE终端向目标终端发送设备间通信配置通知消息, 该消息携带所 述设备间通信资源信息, 目标终端接收到该消息后,根据该设备间通信资源信 息, 与所述 LTE终端进行通信。
所述设备间通信请求消息进一步携带与所述 LTE终端进行通信的目标终 端的标识, 或者进一步携带与所述 LTE终端进行通信的目标终端的标识及所 述 LTE终端在设备间通信中扮演的角色信息: 主角色或从角色。
所述 LTE基站重新为所述 LTE终端配置设备间通信资源包括:
所述 LTE基站判断目标终端是否为本小区终端, 若是, LTE基站为该两 终端配置设备间通信资源; 否则, LTE基站与目标终端的服务基站协商为该两 终端配置设备间通信资源。
当所述设备间通信请求消息携带所述 LTE终端在设备间通信中扮演的角 色信息: 主角色或从角色时,
所述 LTE基站与目标终端的服务基站协商为该两终端配置设备间通信资 源为: 该两基站以扮演主角色的终端的需求为主,协商为该两终端配置设备间 通信资源。
所述预使用的设备间通信资源信息为子帧信息,或者为子帧信息及子帧中 使用的频率资源信息。
所述重要系统信息为将发送给终端的寻呼信息、或者广播信息、或者调度 信息。
一种长期演进 LTE系统中的设备间通信方法, 该方法包括:
LTE终端向 LTE基站发送设备间通信请求消息, 该消息携带与该终端进 行通信的目标终端的标识, 或者,
携带与该终端进行通信的目标终端的标识及该终端在设备间通信中扮演 的角色信息: 主角色或从角色, 或者,
携带该终端预使用的设备间通信子帧信息, 或者,
携带该终端预使用的设备间通信子帧信息及子帧中使用的频率资源信息, 或者,
携带该终端预使用的设备间通信子帧信息及与该终端进行通信的目标终 端的标只, 或者,
携带该终端预使用的设备间通信子帧信息、与该终端进行通信的目标终端 的标识及该终端在设备间通信中扮演的角色信息: 主角色或从角色, 或者, 携带该终端预使用的设备间通信子帧信息及子帧中使用的频率资源信息 及与该终端进行通信的目标终端的标识, 或者,
携带该终端预使用的设备间通信子帧信息及子帧中使用的频率资源信息、 与该终端进行通信的目标终端的标识及该终端在设备间通信中扮演的角色信 息: 主角色或从角色。
一种长期演进 LTE终端, 该终端包括:
请求模块: 向 LTE基站发送设备间通信请求消息, 接收 LTE基站或目标 终端发来的设备间通信资源信息, 将该设备间通信资源信息发送给通信模块, 其中, 设备间通信请求消息携带与该终端进行通信的目标终端的标识, 或者, 携带与该终端进行通信的目标终端的标识及该终端在设备间通信中扮演 的角色信息: 主角色或从角色, 或者,
携带该终端预使用的设备间通信子帧信息, 或者,
携带该终端预使用的设备间通信子帧信息及子帧中使用的频率资源信息, 或者,
携带该终端预使用的设备间通信子帧信息及与该终端进行通信的目标终 端的标只, 或者,
携带该终端预使用的设备间通信子帧信息、与该终端进行通信的目标终端 的标识及该终端在设备间通信中扮演的角色信息: 主角色或从角色, 或者, 携带该终端预使用的设备间通信子帧信息及子帧中使用的频率资源信息 及与该终端进行通信的目标终端的标识, 或者,
携带该终端预使用的设备间通信子帧信息及子帧中使用的频率资源信息、 与该终端进行通信的目标终端的标识及该终端在设备间通信中扮演的角色信 息: 主角色或从角色;
通信模块: 根据请求模块发来的设备间通信资源信息, 与目标终端进行通 信。
所述请求模块进一步用于, 当接收到 LTE基站发来的设备间通信资源信 息时, 将该通信资源信息发送给目标终端。
一种长期演进 LTE基站, 该基站包括:
消息收发模块: 接收 LTE终端发来的携带目标终端标识的设备间通信请 求消息,将该消息转发给资源配置模块;接收资源配置模块发来的设备间通信 资源信息, 将该通信资源信息携带在设备间通信确认消息中发送给所述 LTE 终端;
资源配置模块: 接收所述设备间通信请求消息, 判断目标终端是否为本小 区终端, 若是, 为该两终端配置设备间通信资源, 否则, 与目标终端的服务基 站协商为该两终端配置设备间通信资源, 配置完毕,将配置的设备间通信资源 信息发送给消息收发模块。
所述消息收发模块接收到的设备间通信请求消息进一步携带所述 LTE终 端在设备间通信中扮演的角色信息: 主角色或从角色;
所述资源配置模块进一步用于,当与目标终端的服务基站协商为该两终端 配置设备间通信资源时, 以扮演主角色的终端的需求为主进行协商。
一种长期演进 LTE基站, 该基站包括:
消息收发模块: 接收 LTE终端发来的携带该终端预使用的设备间通信资 源信息的设备间通信请求消息,将该消息转发给资源配置模块;接收资源配置 模块发来的设备间通信资源信息,将该通信资源信息携带在设备间通信确认消 息中发送给所述 LTE终端;
资源配置模块: 接收所述设备间通信请求消息, 对于所述 LTE终端预使 用的设备间通信资源中的每个子帧,判断该子帧的传输方向是否与本基站配置 的该子帧的传输方向相同, 若是, 确定该子帧可以配置给所述 LTE终端作为 设备间通信资源; 否则, 判断若将该子帧配置给所述 LTE终端是否会对该子 帧上预调度的其它终端产生干扰, 若会, 重新为其它终端配置资源, 或者重新 为所述 LTE终端配置设备间通信资源,若不会,确定该子帧能配置给所述 LTE 终端作为设备间通信资源;当对预使用的设备间通信资源中的每个子帧都确认 完毕时, 将为所述 LTE终端配置的设备间通信资源信息发送给消息收发模块。
所述消息收发模块接收到的设备间通信请求消息进一步携带与所述 LTE 终端进行通信的目标终端的标识, 或者进一步携带与所述 LTE终端进行通信 的目标终端的标识及 LTE终端在设备间通信中扮演的角色信息: 主角色或从 角色;
且所述资源配置模块进一步用于, 当重新为所述 LTE终端配置设备间通 信资源时, 判断目标终端是否为本小区终端, 若是, 为该两终端配置设备间通 信资源; 否则, 与目标终端的服务基站协商为该两终端配置设备间通信资源。
当所述消息收发模块接收到的设备间通信请求消息携带所述 LTE终端在 设备间通信中扮演的角色信息: 主角色或从角色时,
所述资源配置模块进一步用于,当与目标终端的服务基站协商为该两终端 配置设备间通信资源时, 以扮演主角色的终端的需求为主进行协商。
所述资源配置模块进一步用于,当判定该子帧的传输方向与本基站配置的 该子帧的传输方向相同之后,判断系统中的剩余通信资源是否小于预设资源门 限, 若是, 确定能将该子帧继续调度给其它终端使用; 否则, 不再将该子帧调 度给其它终端。
所述资源配置模块进一步用于, 若发现该子帧上有所述 LTE终端已配置 的反馈信息需要传输, 则更改该信息的承载位置, 并将更改后的承载位置信息 告知所述 LTE终端。
一种长期演进 LTE基站, 该基站包括:
消息收发模块: 接收 LTE终端发来的携带该终端预使用的设备间通信资 源信息的设备间通信请求消息,将该消息转发给资源配置模块;接收资源配置 模块发来的设备间通信资源信息,将该通信资源信息携带在设备间通信确认消 息中发送给所述 LTE终端;
资源配置模块: 接收所述设备间通信请求消息, 对于所述 LTE终端预使 用的设备间通信资源中的每个子帧,判断本基站是否已在该子帧上承载了重要 系统信息, 若是, 重新为所述 LTE终端配置设备间通信资源; 否则, 确定该 子帧可以配置给所述 LTE终端作为设备间通信资源; 当对预使用的设备间通 信资源中的每个子帧都确认完毕时, 将为所述 LTE终端配置的设备间通信资 源信息发送给消息收发模块。
所述消息收发模块接收到的设备间通信请求消息进一步携带与所述 LTE 终端进行通信的目标终端的标识, 或者进一步携带与所述 LTE终端进行通信 的目标终端的标识及该终端在设备间通信中扮演的角色信息: 主角色或从角 色;
所述资源配置模块进一步用于, 当重新为所述 LTE终端配置设备间通信 资源时, 判断目标终端是否为本小区终端, 若是, 为该两终端配置设备间通信 资源; 否则, 与目标终端的服务基站协商为该两终端配置设备间通信资源。
当所述消息收发模块接收到的设备间通信请求消息携带所述 LTE终端在 设备间通信中扮演的角色信息: 主角色或从角色时,
所述资源配置模块进一步用于,当与目标终端的服务基站协商为该两终端 配置设备间通信资源时, 以扮演主角色的终端的需求为主进行协商。
与现有技术相比,本发明可以合理为基于蜂窝网的设备间通信配置公网资 源, 避免了设备间通信对公网通信的影响。 附图说明
图 1为本发明实施例一提供的 LTE系统中的设备间通信方法流程图; 图 2为本发明实施例二提供的 LTE系统中的设备间通信方法流程图; 图 3为本发明实施例三提供的 LTE系统中的设备间通信方法流程图; 图 4为本发明实施例一提供的 LTE基站的组成示意图;
图 5为本发明实施例提供的 LTE终端的组成示意图。
具体实施方式
下面结合附图及具体实施例对本发明再作进一步详细的说明。
图 1为本发明实施例一提供的 LTE系统中的设备间通信方法流程图, 如 图 1所示, 其具体步骤如下:
步骤 101 : LTE终端向 LTE基站发送设备间通信请求消息, 该消息携带与 该终端进行通信的目标终端的标识。
本步骤中,设备间通信请求消息也可进一步携带该终端在设备间通信中扮 演的角色信息, 如: master角色或 slave角色。
步骤 102: 基站接收该设备间通信请求消息, 从该消息中解析出目标终端 的标识。
步骤 103: 基站判断目标终端是否为本小区终端, 若是, 执行步骤 104; 否则, 执行步骤 105。
步骤 104: 基站为该两终端配置设备间通信资源, 转至步骤 106。
步骤 105: 基站与目标终端的服务基站协商为该两终端配置设备间通信资 源。
具体地, 基站可通过 X2接口或通过核心网与目标终端的服务基站协商; 进一步地,若终端发送的设备间通信请求消息也携带了该终端在设备间通信中 扮演的角色信息, 则当该两基站协商为该两终端配置设备间通信资源时, 可以 以扮演 master角色的终端的需求为主进行协商。
步骤 106: 基站向该终端返回设备间通信确认消息, 该消息携带为该两终 端配置的设备间通信资源信息。
步骤 107: 终端接收该设备间通信确认消息, 根据该消息中的设备间通信 资源信息, 与目标终端进行通信。
本步骤中, 终端在接收到设备间通信确认消息之后, 可先向目标终端发送 设备间通信配置通知消息, 该消息携带设备间通信资源信息, 目标终端接收到 该消息后, 根据该设备间通信资源信息, 与该终端进行通信。 图 2为本发明实施例二提供的 LTE系统中的设备间通信方法流程图, 如 图 2所示, 其具体步骤如下:
步骤 201 : LTE终端向 LTE基站发送设备间通信请求消息, 该消息携带该 终端预使用的设备间通信资源信息。
这里,预使用的设备间通信资源信息可以是子帧信息,也可以是子帧信息 及子帧中使用的频率资源信息。
本步骤中的设备间通信请求消息还可进一步携带与该终端进行通信的目 标终端的标识,或者进一步携带与该终端进行通信的目标终端的标识及该终端 在设备间通信中扮演的角色信息。
步骤 202: 基站接收该设备间通信请求消息, 从该消息中解析出预使用的 设备间通信资源信息。 步骤 203: 对于该预使用的设备间通信资源中的每个子帧, 基站判断该子 帧的传输方向是否与本基站配置的该子帧的传输方向相同, 若是, 执行步骤 204; 否则, 执行步骤 205。
步骤 204: 基站确定该子帧可以配置给该终端作为设备间通信资源, 转至 步骤 208。
本步骤中, 基站还可进一步判断系统中的剩余资源是否小于预设资源门 限, 若是, 确定该子帧还可以调度给其它终端使用; 否则, 不再将该子帧调度 给其它终端。
本步骤中, 基站若发现该子帧上有该终端已配置的确认(ACK )、 拒绝 ( NACK )、 信道质量指示(CQI )等反馈信息需要传输, 则更改该信息的承载 位置, 并将更改后的承载位置信息告知该终端。
步骤 205: 基站判断若将该子帧配置给该终端是否会对该子帧上预调度的 其它终端产生干扰, 若是, 执行步骤 206; 否则, 执行步骤 207。
基站可以根据如下方式来判断若将该子帧配置给该终端是否会对该子帧 上预调度的其它终端产生干扰:
对于该子帧上预调度的其它每一个终端,基站判断该终端与该其它终端的 距离是否小于预设距离门限, 若是, 确定会产生干扰。
步骤 206: 基站重新为其它终端配置资源, 转至步骤 208。
本步骤也可替换为如下两种之一:
一、 基站重新为该终端配置设备间通信资源。
此时,若设备间通信请求消息进一步携带了与该终端进行通信的目标终端 的标识时, 基站可通过步骤 103~105为该终端配置设备间通信资源。 二、 基站直接向该终端返回设备间通信拒绝消息, 本流程到此结束。 步骤 207: 基站确定该子帧可以配置给该终端作为设备间通信资源。 步骤 208: 基站判断是否该预使用设备间通信资源中的每一个子帧都确认 过, 若是, 执行步骤 209; 否则, 返回步骤 203继续确认下一个子帧。
步骤 209: 基站向终端返回设备间通信确认消息, 该消息携带为该终端配 置的设备间通信资源信息。
步骤 210: 终端接收该设备间通信确认消息, 根据该消息中的设备间通信 资源信息, 与目标终端进行通信。
本步骤中, 终端在接收到设备间通信确认消息之后, 可先向目标终端发送 设备间通信配置通知消息, 该消息携带设备间通信资源信息, 目标终端接收到 该消息后, 根据该设备间通信资源信息, 与该终端进行通信。 图 3为本发明实施例三提供的 LTE系统中的设备间通信方法流程图, 如 图 3所示, 其具体步骤如下:
步骤 301: LTE终端向 LTE基站发送设备间通信请求消息, 该消息携带该 终端预使用的设备间通信资源信息。
这里,预使用的设备间通信资源信息可以是子帧信息,也可以是子帧信息 及子帧中使用的频率资源信息。
本步骤中的设备间通信请求消息还可进一步携带与该终端 A进行通信的 目标终端的标识,或者进一步携带与该终端进行通信的目标终端的标识及该终 端在设备间通信中扮演的角色信息。
步骤 302: 基站接收该设备间通信请求消息, 从该消息中解析出预使用的 设备间通信资源信息。
步骤 303: 对于该预使用的设备间通信资源中的每个子帧, 基站判断自身 是否已在该子帧上承载了重要系统信息, 若是, 执行步骤 304; 否则, 执行步 骤 305。
步骤 304: 基站重新为该终端配置设备间通信资源, 转至步骤 306。
这里, 重要系统信息例如: 终端的寻呼(paging )信息或其它重要的广播、 调度信息等。
本步骤中,若设备间通信请求消息进一步携带了与该终端进行通信的目标 终端的标识时, 则基站可通过步骤 103~105为该终端配置设备间通信资源。
本步骤也可替换为: 基站直接向该终端返回设备间通信拒绝消息, 本流程 到此结束。
步骤 305: 基站确定该子帧可以配置给该终端作为设备间通信资源。
步骤 306: 基站判断是否该预使用设备间通信资源中的每一个子帧都确认 过, 若是, 执行步骤 307; 否则, 返回步骤 303继续确认下一个子帧。
步骤 307: 基站向终端返回设备间通信确认消息, 该消息携带为该终端配 置的设备间通信资源信息。
步骤 308: 终端接收该设备间通信确认消息, 根据该消息中的设备间通信 资源信息, 与目标终端进行通信。
本步骤中, 终端在接收到设备间通信确认消息之后, 可先向目标终端发送 设备间通信配置通知消息, 该消息携带设备间通信资源信息, 目标终端接收到 该消息后, 根据该设备间通信资源信息, 与该终端进行通信。 本发明中,基站可以根据终端发起的设备间通信请求的次数或为终端配置 的设备间通信资源情况对该终端的设备间通信进行计费。 图 4为本发明实施例一提供的 LTE基站的组成示意图, 如图 4所示, 其 主要包括: 消息收发模块 41和资源配置模块 42, 其中:
消息收发模块 41: 接收 LTE终端发来的携带目标终端标识的设备间通信 请求消息, 将该消息转发给资源配置模块 42; 接收资源配置模块 42发来的设 备间通信资源信息, 将该通信资源信息携带在设备间通信确认消息中返回给 LTE终端。
资源配置模块 42: 接收消息收发模块 41发来的设备间通信请求消息, 根 据该消息中的目标终端标识, 判断目标终端是否为本小区终端, 若是, 为该两 终端配置设备间通信资源, 否则, 与目标终端的服务基站协商为该两终端配置 设备间通信资源, 配置完毕,将配置的设备间通信资源信息发送给消息收发模 块 41。
消息收发模块 41接收到的设备间通信请求消息可进一步携带 LTE终端在 设备间通信中扮演的角色信息: 主角色或从角色。
资源配置模块 42可进一步用于, 当与目标终端的服务基站协商为该两终 端配置设备间通信资源时, 以扮演主角色的终端的需求为主进行协商。 以下给出本发明实施例二提供的 LTE基站的组成, 其主要包括消息收发 模块和资源配置模块, 其中:
消息收发模块: 接收 LTE终端发来的携带该 LTE终端预使用的设备间通 信资源信息的设备间通信请求消息,将该消息转发给资源配置模块;接收资源 配置模块发来的设备间通信资源信息,将该通信资源信息携带在设备间通信确 认消息中返回给该 LTE终端。
资源配置模块: 接收消息收发模块发来的设备间通信请求消息,根据该消 息中的该 LTE终端预使用的设备间通信资源信息, 对于该 LTE终端预使用的 设备间通信资源中的每个子帧,判断该子帧的传输方向是否与本基站配置的该 子帧的传输方向相同, 若是, 确定该子帧可以配置给该 LTE终端作为设备间 通信资源; 否则, 判断若将该子帧配置给该 LTE终端是否会对该子帧上预调 度的其它终端产生干扰, 若会, 重新为其它终端配置资源, 或者重新为该 LTE 终端配置设备间通信资源, 若不会, 确定该子帧可以配置给该 LTE终端作为 设备间通信资源; 当对预使用的设备间通信资源中的每个子帧都确认完毕时, 将为该 LTE终端配置的设备间通信资源信息发送给消息收发模块。
其中,消息收发模块接收到的设备间通信请求消息可进一步携带与该终端 进行通信的目标终端的标识,或者进一步携带与该终端进行通信的目标终端的 标识及该终端在设备间通信中扮演的角色信息: 主角色或从角色;
资源配置模块可进一步用于, 当重新为该 LTE终端配置设备间通信资源 时,判断目标终端是否为本小区终端,若是,为该两终端配置设备间通信资源; 否则, 与目标终端的服务基站协商为该两终端配置设备间通信资源。
当消息收发模块接收到的设备间通信请求消息携带该终端在设备间通信 中扮演的角色信息: 主角色或从角色时, 资源配置模块可进一步用于, 当与目 标终端的服务基站协商为该两终端配置设备间通信资源时,以扮演主角色的终 端的需求为主进行协商。 资源配置模块可进一步用于,当判定该子帧的传输方向与本基站配置的该 子帧的传输方向相同之后, 判断系统中的剩余通信资源是否小于预设资源门 限, 若是, 确定可将该子帧继续调度给其它终端使用; 否则, 不再将该子帧调 度给其它终端。
资源配置模块可进一步用于, 若发现该子帧上有所述 LTE终端已配置的 反馈信息需要传输, 则更改该信息的承载位置, 并将更改后的承载位置信息告 知该 LTE终端。 以下给出本发明实施例三提供的 LTE基站的组成, 其主要包括消息收发 模块和资源配置模块, 其中:
消息收发模块: 接收 LTE终端发来的携带该 LTE终端预使用的设备间通 信资源信息的设备间通信请求消息,将该消息转发给资源配置模块;接收资源 配置模块发来的设备间通信资源信息,将该通信资源信息携带在设备间通信确 认消息中返回给该 LTE终端。
资源配置模块: 接收消息收发模块发来的设备间通信请求消息,根据该消 息中的该 LTE终端预使用的设备间通信资源信息, 对于该 LTE终端预使用的 设备间通信资源中的每个子帧,判断本基站是否已在该子帧上承载了重要系统 信息, 若是, 重新为该 LTE终端配置设备间通信资源; 否则, 确定该子帧可 以配置给该 LTE终端作为设备间通信资源; 当对预使用的设备间通信资源中 的每个子帧都确认完毕时, 将为该 LTE终端配置的设备间通信资源信息发送 给消息收发模块。
消息收发模块接收到的设备间通信请求消息可进一步携带与该终端进行 通信的目标终端的标识,或者进一步携带与该终端进行通信的目标终端的标识 及该终端在设备间通信中扮演的角色信息: 主角色或从角色;
资源配置模块可进一步用于, 当重新为该 LTE终端配置设备间通信资源 时,判断目标终端是否为本小区终端,若是,为该两终端配置设备间通信资源; 否则, 与目标终端的服务基站协商为该两终端配置设备间通信资源。
当消息收发模块接收到的设备间通信请求消息携带该终端在设备间通信 中扮演的角色信息: 主角色或从角色时, 资源配置模块可进一步用于, 当与目 标终端的服务基站协商为该两终端配置设备间通信资源时,以扮演主角色的终 端的需求为主进行协商。 图 5为本发明实施例提供的 LTE终端的组成示意图, 如图 5所示, 其主 要包括: 请求模块 51和通信模块 52, 其中:
请求模块 51: 向 LTE基站发送设备间通信请求消息, 该消息携带与该终 端进行通信的目标终端的标识,或者携带与该终端进行通信的目标终端的标识 及该终端在设备间通信中扮演的角色信息: 主角色或从角色, 或者携带该终端 预使用的设备间通信子帧信息,或者携带该终端预使用的设备间通信子帧信息 及子帧中使用的频率资源信息,或者携带该终端预使用的设备间通信子帧信息 及与该终端进行通信的目标终端的标识,或者携带该终端预使用的设备间通信 子帧信息、与该终端进行通信的目标终端的标识及该终端在设备间通信中扮演 的角色信息: 主角色或从角色, 或者携带该终端预使用的设备间通信子帧信息 及子帧中使用的频率资源信息及与该终端进行通信的目标终端的标识,或者携 带该终端预使用的设备间通信子帧信息及子帧中使用的频率资源信息、与该终 端进行通信的目标终端的标识及该终端在设备间通信中扮演的角色信息:主角 色或从角色; 接收 LTE基站或目标终端发来的设备间通信资源信息, 将该设 备间通信资源信息发送给通信模块 52。
请求模块 51可进一步用于, 当接收到 LTE基站发来的设备间通信资源信 息时, 将该通信资源信息发送给目标终端。
通信模块 52: 根据请求模块 51发来的设备间通信资源信息, 与目标终端 进行通信。
以上所述仅为本发明的较佳实施例而已, 并不用以限制本发明, 凡在本发 明的精神和原则之内, 所做的任何修改、 等同替换、 改进等, 均应包含在本发 明保护的范围之内。

Claims

权 利 要 求
1、 一种长期演进 LTE系统中的设备间通信方法, 其特征在于, 该方法包 括:
LTE终端向 LTE基站发送设备间通信请求消息, 该消息携带与该终端进 行通信的目标终端的标识;
所述 LTE基站接收该消息, 判断目标终端是否为本小区终端, 若是, 所 述 LTE基站为该两终端配置设备间通信资源; 否则, 所述 LTE基站与目标终 端的服务基站协商为该两终端配置设备间通信资源;
所述 LTE基站向所述 LTE终端返回设备间通信确认消息, 该消息携带为 该两终端配置的设备间通信资源信息; 所述 LTE终端接收该设备间通信确认 消息, 根据该消息中的设备间通信资源信息, 与目标终端进行通信。
2、 根据权利要求 1所述的方法, 其特征在于, 所述 LTE终端接收该设备 间通信确认消息之后进一步包括:
所述 LTE终端向目标终端发送设备间通信配置通知消息, 该消息携带所 述设备间通信资源信息, 目标终端接收到该消息后,根据该设备间通信资源信 息, 与该 LTE终端进行通信。
3、 根据权利要求 1所述的方法, 其特征在于, 所述设备间通信请求消息 进一步携带所述 LTE终端在设备间通信中扮演的角色信息: 主角色或从角色; 所述 LTE基站与目标终端的服务基站协商为该两终端配置设备间通信资 源为: 该两基站以扮演主角色的终端的需求为主,协商为该两终端配置设备间 通信资源。
4、 一种长期演进 LTE系统中的设备间通信方法, 其特征在于, 该方法包 括:
LTE终端向 LTE基站发送设备间通信请求消息, 该消息携带该终端预使 用的设备间通信资源信息;
所述 LTE基站接收该设备间通信请求消息, 对于该消息携带的预使用的 设备间通信资源信息指向的每个子帧,判断该子帧的传输方向是否与本基站配 置的该子帧的传输方向相同, 若是, LTE基站确定该子帧可以配置给所述 LTE 终端作为设备间通信资源; 否则, LTE基站判断若将该子帧配置给所述 LTE 终端是否会对该子帧上预调度的其它终端产生干扰, 若会, LTE基站重新为其 它终端配置资源, 或者重新为所述 LTE终端配置设备间通信资源, 若不会, LTE基站确定该子帧可以配置给所述 LTE终端作为设备间通信资源;
当对预使用的设备间通信资源信息指向的每个子帧都确认完毕时, LTE基 站向所述 LTE终端返回设备间通信确认消息, 该消息携带为所述 LTE终端配 置的设备间通信资源信息;
所述 LTE终端接收该设备间通信确认消息, 根据该消息中的设备间通信 资源信息, 与目标终端进行通信。
5、 根据权利要求 4所述的方法, 其特征在于, 所述 LTE终端接收该设备 间通信确认消息之后进一步包括:
所述 LTE终端向目标终端发送设备间通信配置通知消息, 该消息携带设 备间通信资源信息, 目标终端接收到该消息后, 根据该设备间通信资源信息, 与所述 LTE终端进行通信。
6、 根据权利要求 4所述的方法, 其特征在于, 所述预使用的设备间通信 资源信息为子帧信息, 或者为子帧信息及子帧中使用的频率资源信息。
7、 根据权利要求 4所述的方法, 其特征在于, 所述设备间通信请求消息 进一步携带与所述 LTE终端进行通信的目标终端的标识, 或者进一步携带与 所述 LTE终端进行通信的目标终端的标识及所述 LTE终端在设备间通信中扮 演的角色信息: 主角色或从角色。
8、 根据权利要求 7所述的方法, 其特征在于, 所述 LTE基站重新为所述
LTE终端配置设备间通信资源包括:
所述 LTE基站判断目标终端是否为本小区终端, 若是, 所述 LTE基站为 该两终端配置设备间通信资源; 否则, 所述 LTE基站与目标终端的服务基站 协商为该两终端配置设备间通信资源。
9、 根据权利要求 8所述的方法, 其特征在于, 当所述设备间通信请求消 息携带所述 LTE终端在设备间通信中扮演的角色信息: 主角色或从角色时, 所述 LTE基站与目标终端的服务基站协商为该两终端配置设备间通信资 源为: 该两基站以扮演主角色的终端的需求为主,协商为该两终端配置设备间 通信资源。
10、 根据权利要求 4所述的方法, 其特征在于, 当所述 LTE基站判定该 子帧的传输方向与本基站配置的该子帧的传输方向相同之后进一步包括:
所述 LTE基站判断系统中的剩余通信资源是否小于预设资源门限, 若是, 确定能将该子帧继续调度给其它终端使用; 否则, 不再将该子帧调度给其它终 端。
11、 根据权利要求 4所述的方法, 其特征在于, 当所述 LTE基站判定该 子帧的传输方向与本基站配置的该子帧的传输方向相同之后进一步包括:
所述 LTE基站若发现该子帧上有所述 LTE终端已配置的反馈信息需要传 输, 则更改该信息的承载位置, 并将更改后的承载位置信息告知所述 LTE终 端。
12、 一种长期演进 LTE 系统中的设备间通信方法, 其特征在于, 该方法 包括:
LTE终端向 LTE基站发送设备间通信请求消息, 该消息携带该终端预使 用的设备间通信资源信息;
所述 LTE基站接收该设备间通信请求消息, 对于该消息携带的预使用的 设备间通信资源信息指向的每个子帧,判断本基站是否已在该子帧上承载了重 要系统信息, 若是, 所述 LTE基站重新为所述 LTE终端配置设备间通信资源; 否则, 所述 LTE基站确定该子帧可以配置给所述 LTE终端作为设备间通信资 源;
所述 LTE基站向所述 LTE终端返回设备间通信确认消息, 该消息携带为 所述 LTE终端配置的设备间通信资源信息;
所述 LTE终端接收该设备间通信确认消息, 根据该消息中的设备间通信 资源信息, 与目标终端进行通信。
13、 根据权利要求 12所述的方法, 其特征在于, 所述 LTE终端接收该 设备间通信确认消息之后进一步包括:
所述 LTE终端向目标终端发送设备间通信配置通知消息, 该消息携带所 述设备间通信资源信息, 目标终端接收到该消息后,根据该设备间通信资源信 息, 与所述 LTE终端进行通信。
14、 根据权利要求 12所述的方法, 其特征在于, 所述设备间通信请求消 息进一步携带与所述 LTE终端进行通信的目标终端的标识, 或者进一步携带 与所述 LTE终端进行通信的目标终端的标识及所述 LTE终端在设备间通信中 扮演的角色信息: 主角色或从角色。
15、 根据权利要求 14所述的方法, 其特征在于, 所述 LTE基站重新为所 述 LTE终端配置设备间通信资源包括:
所述 LTE基站判断目标终端是否为本小区终端, 若是, LTE基站为该两 终端配置设备间通信资源; 否则, LTE基站与目标终端的服务基站协商为该两 终端配置设备间通信资源。
16、 根据权利要求 15所述的方法, 其特征在于, 当所述设备间通信请求 消息携带所述 LTE终端在设备间通信中扮演的角色信息: 主角色或从角色时, 所述 LTE基站与目标终端的服务基站协商为该两终端配置设备间通信资 源为: 该两基站以扮演主角色的终端的需求为主,协商为该两终端配置设备间 通信资源。
17、 根据权利要求 12所述的方法, 其特征在于, 所述预使用的设备间通 信资源信息为子帧信息, 或者为子帧信息及子帧中使用的频率资源信息。
18、 根据权利要求 12所述的方法, 其特征在于, 所述重要系统信息包括: 将发送给终端的寻呼信息、 或者广播信息、 或者调度信息。
19、 一种长期演进 LTE 系统中的设备间通信方法, 其特征在于, 该方法 包括:
LTE终端向 LTE基站发送设备间通信请求消息, 该消息携带与该终端进 行通信的目标终端的标识, 或者,
携带与该终端进行通信的目标终端的标识及该终端在设备间通信中扮演 的角色信息: 主角色或从角色, 或者, 携带该终端预使用的设备间通信子帧信息, 或者,
携带该终端预使用的设备间通信子帧信息及子帧中使用的频率资源信息, 或者,
携带该终端预使用的设备间通信子帧信息及与该终端进行通信的目标终 端的标只, 或者,
携带该终端预使用的设备间通信子帧信息、与该终端进行通信的目标终端 的标识及该终端在设备间通信中扮演的角色信息: 主角色或从角色, 或者, 携带该终端预使用的设备间通信子帧信息及子帧中使用的频率资源信息 及与该终端进行通信的目标终端的标识, 或者,
携带该终端预使用的设备间通信子帧信息及子帧中使用的频率资源信息、 与该终端进行通信的目标终端的标识及该终端在设备间通信中扮演的角色信 息: 主角色或从角色。
20、 一种长期演进 LTE终端, 其特征在于, 该终端包括:
请求模块: 向 LTE基站发送设备间通信请求消息, 接收 LTE基站或目标 终端发来的设备间通信资源信息, 将该设备间通信资源信息发送给通信模块, 其中, 设备间通信请求消息携带与该终端进行通信的目标终端的标识, 或者, 携带与该终端进行通信的目标终端的标识及该终端在设备间通信中扮演 的角色信息: 主角色或从角色, 或者,
携带该终端预使用的设备间通信子帧信息, 或者,
携带该终端预使用的设备间通信子帧信息及子帧中使用的频率资源信息, 或者,
携带该终端预使用的设备间通信子帧信息及与该终端进行通信的目标终 端的标只, 或者,
携带该终端预使用的设备间通信子帧信息、与该终端进行通信的目标终端 的标识及该终端在设备间通信中扮演的角色信息: 主角色或从角色, 或者, 携带该终端预使用的设备间通信子帧信息及子帧中使用的频率资源信息 及与该终端进行通信的目标终端的标识, 或者,
携带该终端预使用的设备间通信子帧信息及子帧中使用的频率资源信息、 与该终端进行通信的目标终端的标识及该终端在设备间通信中扮演的角色信 息: 主角色或从角色;
通信模块: 根据请求模块发来的设备间通信资源信息, 与目标终端进行通 信。
21、 根据权利要求 20所述的 LTE终端, 其特征在于, 所述请求模块进一 步用于, 当接收到 LTE基站发来的设备间通信资源信息时, 将该通信资源信 息发送给目标终端。
22、 一种长期演进 LTE基站, 其特征在于, 该基站包括:
消息收发模块: 接收 LTE终端发来的携带目标终端标识的设备间通信请 求消息,将该消息转发给资源配置模块;接收资源配置模块发来的设备间通信 资源信息, 将该通信资源信息携带在设备间通信确认消息中发送给所述 LTE 终端;
资源配置模块: 接收所述设备间通信请求消息, 判断目标终端是否为本小 区终端, 若是, 为该两终端配置设备间通信资源, 否则, 与目标终端的服务基 站协商为该两终端配置设备间通信资源, 配置完毕,将配置的设备间通信资源 信息发送给消息收发模块。
23、 根据权利要求 22所述的 LTE基站, 其特征在于, 所述消息收发模块 接收到的设备间通信请求消息进一步携带所述 LTE终端在设备间通信中扮演 的角色信息: 主角色或从角色;
所述资源配置模块进一步用于,当与目标终端的服务基站协商为该两终端 配置设备间通信资源时, 以扮演主角色的终端的需求为主进行协商。
24、 一种长期演进 LTE基站, 其特征在于, 该基站包括:
消息收发模块: 接收 LTE终端发来的携带该终端预使用的设备间通信资 源信息的设备间通信请求消息,将该消息转发给资源配置模块;接收资源配置 模块发来的设备间通信资源信息,将该通信资源信息携带在设备间通信确认消 息中发送给所述 LTE终端;
资源配置模块: 接收所述设备间通信请求消息, 对于所述 LTE终端预使 用的设备间通信资源中的每个子帧,判断该子帧的传输方向是否与本基站配置 的该子帧的传输方向相同, 若是, 确定该子帧可以配置给所述 LTE终端作为 设备间通信资源; 否则, 判断若将该子帧配置给所述 LTE终端是否会对该子 帧上预调度的其它终端产生干扰, 若会, 重新为其它终端配置资源, 或者重新 为所述 LTE终端配置设备间通信资源,若不会,确定该子帧能配置给所述 LTE 终端作为设备间通信资源;当对预使用的设备间通信资源中的每个子帧都确认 完毕时, 将为所述 LTE终端配置的设备间通信资源信息发送给消息收发模块。
25、 根据权利要求 24所述的 LTE基站, 其特征在于, 所述消息收发模块 接收到的设备间通信请求消息进一步携带与所述 LTE终端进行通信的目标终 端的标识,或者进一步携带与所述 LTE终端进行通信的目标终端的标识及 LTE 终端在设备间通信中扮演的角色信息: 主角色或从角色; 且所述资源配置模块进一步用于, 当重新为所述 LTE终端配置设备间通 信资源时, 判断目标终端是否为本小区终端, 若是, 为该两终端配置设备间通 信资源; 否则, 与目标终端的服务基站协商为该两终端配置设备间通信资源。
26、 根据权利要求 25所述的 LTE基站, 其特征在于, 当所述消息收发模 块接收到的设备间通信请求消息携带所述 LTE终端在设备间通信中扮演的角 色信息: 主角色或从角色时,
所述资源配置模块进一步用于,当与目标终端的服务基站协商为该两终端 配置设备间通信资源时, 以扮演主角色的终端的需求为主进行协商。
27、 根据权利要求 25所述的 LTE基站, 其特征在于, 所述资源配置模块 进一步用于,当判定该子帧的传输方向与本基站配置的该子帧的传输方向相同 之后, 判断系统中的剩余通信资源是否小于预设资源门限, 若是, 确定能将该 子帧继续调度给其它终端使用; 否则, 不再将该子帧调度给其它终端。
28、 根据权利要求 25所述的 LTE基站, 其特征在于, 所述资源配置模块 进一步用于, 若发现该子帧上有所述 LTE终端已配置的反馈信息需要传输, 则更改该信息的承载位置, 并将更改后的承载位置信息告知所述 LTE终端。
29、 一种长期演进 LTE基站, 其特征在于, 该基站包括:
消息收发模块: 接收 LTE终端发来的携带该终端预使用的设备间通信资 源信息的设备间通信请求消息,将该消息转发给资源配置模块;接收资源配置 模块发来的设备间通信资源信息,将该通信资源信息携带在设备间通信确认消 息中发送给所述 LTE终端;
资源配置模块: 接收所述设备间通信请求消息, 对于所述 LTE终端预使 用的设备间通信资源中的每个子帧,判断本基站是否已在该子帧上承载了重要 系统信息, 若是, 重新为所述 LTE终端配置设备间通信资源; 否则, 确定该 子帧可以配置给所述 LTE终端作为设备间通信资源; 当对预使用的设备间通 信资源中的每个子帧都确认完毕时, 将为所述 LTE终端配置的设备间通信资 源信息发送给消息收发模块。
30、 根据权利要求 29所述的 LTE基站, 其特征在于, 所述消息收发模块 接收到的设备间通信请求消息进一步携带与所述 LTE终端进行通信的目标终 端的标识, 或者进一步携带与所述 LTE终端进行通信的目标终端的标识及该 终端在设备间通信中扮演的角色信息: 主角色或从角色;
所述资源配置模块进一步用于, 当重新为所述 LTE终端配置设备间通信 资源时, 判断目标终端是否为本小区终端, 若是, 为该两终端配置设备间通信 资源; 否则, 与目标终端的服务基站协商为该两终端配置设备间通信资源。
31、 根据权利要求 30所述的 LTE基站, 其特征在于, 当所述消息收发模 块接收到的设备间通信请求消息携带所述 LTE终端在设备间通信中扮演的角 色信息: 主角色或从角色时,
所述资源配置模块进一步用于,当与目标终端的服务基站协商为该两终端 配置设备间通信资源时, 以扮演主角色的终端的需求为主进行协商。
PCT/CN2013/084968 2012-10-18 2013-10-10 长期演进系统中的设备间通信方法及长期演进基站、终端 WO2014059891A1 (zh)

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