WO2016183730A1 - Procédé et appareil de transmission de données - Google Patents

Procédé et appareil de transmission de données Download PDF

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Publication number
WO2016183730A1
WO2016183730A1 PCT/CN2015/079069 CN2015079069W WO2016183730A1 WO 2016183730 A1 WO2016183730 A1 WO 2016183730A1 CN 2015079069 W CN2015079069 W CN 2015079069W WO 2016183730 A1 WO2016183730 A1 WO 2016183730A1
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WIPO (PCT)
Prior art keywords
group
relay
identifier
receiving end
receiving
Prior art date
Application number
PCT/CN2015/079069
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English (en)
Chinese (zh)
Inventor
蔺波
王宏
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201580066555.9A priority Critical patent/CN107006065A/zh
Priority to PCT/CN2015/079069 priority patent/WO2016183730A1/fr
Publication of WO2016183730A1 publication Critical patent/WO2016183730A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/04—Terminal devices adapted for relaying to or from another terminal or user

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for transmitting data.
  • a user equipment acquires network services through a base station, and communicates with other UEs based on the network. This requires the base station to achieve wider network coverage to meet the requirements of the UE. demand.
  • D2D (Device-to-Device) communication mode is applied, because D2D communication mode can realize direct communication between UEs, and communication between UEs is not required through the network. It breaks through the limitation of network coverage. Therefore, D2D communication is an important technology in the field of communication technology.
  • the D2D communication mode includes a group communication mode (One-to-Many), and the data structure of the transmission in the group communication mode is as shown in FIG. 1A.
  • the data transmission format mainly includes three parts: a source identifier, a destination identifier, and data.
  • the source identifier is the ProSe UE ID of the source UE
  • the destination identifier is the group ID of the group in which the source UE is located.
  • UE A, UE B, UE C, and UE D belong to group 1
  • UE E and UE F belong to group 2
  • the source identifier carried in the data is the ProSe UE ID of the UE A
  • the destination identifier is 11.
  • the UE B, the UE C, and the UE D receive the data
  • the UE A belongs to the same group as the UE A.
  • Successfully parsed however, when UE E and UE F receive the data, since the UE A does not belong to the same group, the data cannot be parsed.
  • the UE B that is out of the coverage of the base station can establish a communication connection with the base station through the UE A that is in the coverage of the base station.
  • the UE B is called a Remote UE
  • the UE A is called a Relay UE
  • the Remote UE and the Relay UE are as follows. Two ways to establish a connection:
  • a relay UE sends a relay available message.
  • the UE that needs to transmit data through the Relay UE establishes a connection with the Relay UE according to the relay available message.
  • the UE that receives the relay available message cannot distinguish. Whether the relay available message is group communication data or data related to the relay, therefore, the UE that does not need to transmit data through the Relay UE also parses the relay available message, and has a defect of wasting resources;
  • the other one sends a relay request message to the Remote UE.
  • the Relay UE with the Relay function establishes a connection with the Remote UE after receiving the relay request message, but the UE receives the relay request message. It is impossible to distinguish whether the relay request message is group communication data or data related to the relay. Therefore, the UE that does not have the relay function also needs to parse the relay request message, which is a waste of resources.
  • the UE that does not need to transmit data through the Relay UE also needs to parse the relay available message, or the UE that does not have the Relay function also needs to parse the relay request message, resulting in waste of resources.
  • the embodiment of the invention provides a method and a device for transmitting data, which are used to solve the problem that the UE that does not need to transmit data through the Relay UE in the prior art also needs to parse the relay available message, or the UE that does not have the relay function also needs to parse. Relaying a request message, causing a waste of resources.
  • a sender including:
  • a sending unit configured to send a relay available message that carries a preset identifier, where the preset identifier is used to identify that the relay available message is a message that informs the receiving end that the sending end has a relay function;
  • the receiving unit is configured to receive data sent by the receiving end according to the preset identifier.
  • the relay available message further carries a first group of identifiers, and any one of the first groups identified by the first group of identifiers can receive the The group communication data sent by other devices in the first group, and the receiving end is provided with the first group identifier.
  • the relay available message further carries a second group of identifiers, and any one of the second groups identified by the second group identifier is capable of receiving the The broadcast communication data sent by other devices in the two groups, and the receiving end is provided with the second group identifier.
  • the preset identifier is the second group identifier, and any one of the second groups identified by the second group identifier is capable of receiving the The broadcast communication data sent by other devices in the two groups, and the receiving end is provided with the second group identifier.
  • a receiving end including:
  • the receiving unit is configured to receive a relay available message that is sent by the sending end and that carries the preset identifier, where the preset identifier is used to identify that the relay available message is a message that informs the receiving end that the sending end has a relay function. ;
  • a determining unit configured to determine, according to the preset identifier, that the sending end has a relay function
  • a sending unit configured to send data to the sending end.
  • the relay available message further carries a first group of identifiers, and any one of the first groups identified by the first group of identifiers can receive the first Group communication data sent by other devices in a group;
  • the determining unit is further configured to: determine that the receiving end is provided with the first group of identifiers.
  • the relay available message further carries a second group of identifiers, and any one of the second groups identified by the second group identifier is capable of receiving the Broadcast communication data sent by other devices in the two groups;
  • the determining unit is further configured to: determine that the receiving end is provided with the second group identifier.
  • the preset identifier is the second group identifier, and any one of the second groups identified by the second group identifier is capable of receiving the Broadcast communication data sent by other devices in the two groups;
  • the determining unit is further configured to: determine that the receiving end is provided with the second group identifier.
  • a sender including:
  • a sending unit configured to send a relay request message that carries a preset identifier, where the preset identifier is used to identify the relay request message as a message for finding a device with a relay function;
  • a receiving unit configured to receive a relay response message sent by the receiving end according to the preset identifier
  • the sending unit is further configured to send data to the receiving end.
  • the relay request message further carries a first group of identifiers, and any one of the first groups identified by the first group of identifiers can receive the first Group communication data sent by other devices in a group, the receiving end being provided with the first group of identifiers.
  • the relay request message further carries a second group of identifiers, and any one of the second groups identified by the second group identifier is capable of receiving the The broadcast communication data sent by other devices in the two groups, and the receiving end is provided with the second group identifier.
  • the preset identifier is the second group identifier, and any one of the second groups identified by the second group identifier is capable of receiving the The broadcast communication data sent by other devices in the two groups, and the receiving end is provided with the second group identifier.
  • a receiving end including:
  • the receiving unit is configured to receive a relay request message that is sent by the sending end and that carries the preset identifier, where the preset identifier is used to identify the relay request message as a message for finding a device with a relay function;
  • a determining unit configured to determine, according to the preset identifier, that the sending end searches for a device with a relay function
  • a sending unit configured to send a relay response message to the sending end, and receive data sent by the sending end according to the relay response message.
  • the relay request message further carries a first group of identifiers, and any one of the first groups identified by the first group of identifiers can receive the first Group communication data sent by other devices in a group;
  • the determining unit is further configured to: determine that the receiving end is provided with the first group of identifiers.
  • the relay request message further carries a second group of identifiers, and any one of the second groups identified by the second group identifier is capable of receiving the Broadcast communication data sent by other devices in the second group;
  • the determining unit is further configured to: determine that the receiving end is provided with the second group identifier.
  • the preset identifier is the second group identifier, and any one of the second groups identified by the second group identifier is capable of receiving the Broadcast communication data sent by other devices in the two groups;
  • the determining unit is further configured to: determine that the receiving end is provided with the second group identifier.
  • a method for transmitting data including:
  • the sending end sends a relay available message carrying a preset identifier, where the preset identifier is used to identify that the relay available message is a message that informs the receiving end that the sending end has a relay function;
  • the sending end receives data sent by the receiving end according to the preset identifier.
  • the relay available message further carries a first group of identifiers, and any one of the first groups identified by the first group of identifiers can receive the first Group communication data sent by other devices in a group, the receiving end being provided with the first group of identifiers.
  • the relay available message further carries a second group of identifiers, and any one of the second groups identified by the second group identifier is capable of receiving the The broadcast communication data sent by other devices in the two groups, and the receiving end is provided with the second group identifier.
  • the preset identifier is the second group identifier, and any one of the second groups identified by the second group identifier is capable of receiving the The broadcast communication data sent by other devices in the two groups, and the receiving end is provided with the second group identifier.
  • a method for transmitting data including:
  • the receiving end receives the relay available message that is sent by the sending end and carries the preset identifier, where the preset identifier is used to identify that the relay available message is a message that informs the receiving end that the sending end has a relay function;
  • the receiving end sends data to the sending end.
  • the relay available message is further carried a first group of identifiers, wherein any one of the first groups identified by the first group of identifiers is capable of receiving group communication data sent by other devices in the first group;
  • the receiving end After receiving the relay available message that is sent by the sending end and carrying the preset identifier, the receiving end, before determining that the sending end has the relay function, according to the preset identifier, further includes:
  • the receiving end determines that the receiving end is provided with the first group of identifiers.
  • the relay available message further carries a second group of identifiers, and any one of the second groups identified by the second group identifier is capable of receiving the Broadcast communication data sent by other devices in the two groups;
  • the receiving end After receiving the relay available message that is sent by the sending end and carrying the preset identifier, the receiving end, before determining that the sending end has the relay function, according to the preset identifier, further includes:
  • the receiving end determines that the receiving end is provided with the second group identifier.
  • the preset identifier is the second group identifier, and any one of the second groups identified by the second group identifier can receive the Broadcast communication data sent by other devices in the two groups;
  • the receiving end After receiving the relay available message that is sent by the sending end and carrying the preset identifier, the receiving end, before determining that the sending end has the relay function, according to the preset identifier, further includes:
  • the receiving end determines that the receiving end is provided with the second group identifier.
  • a seventh aspect provides a method for transmitting data, including:
  • the sending end sends a relay request message carrying a preset identifier, where the preset identifier is used to identify the relay request message as a message for finding a device with a relay function;
  • the transmitting end sends data to the receiving end.
  • the relay request message further carries a first group of identifiers, and any one of the first groups identified by the first group of identifiers can receive the first Group communication data sent by other devices in a group, the receiving end being provided with the first group of identifiers.
  • the relay request message further carries a second group of identifiers, and any one of the second groups identified by the second group identifier is capable of receiving the Broadcast communication data sent by other devices in the second group, and the receiving end is provided with the second group of identifiers.
  • the preset identifier is the second group identifier, and any one of the second groups identified by the second group identifier is capable of receiving the The broadcast communication data sent by other devices in the two groups, and the receiving end is provided with the second group identifier.
  • a method of transmitting data including:
  • the receiving end receives the relay request message that is sent by the sending end and carries the preset identifier, where the preset identifier is used to identify the relay request message as a message for finding a device with a relay function;
  • the receiving end sends a relay response message to the sending end, and receives data sent by the sending end based on the relay response message.
  • the relay request message further carries a first group of identifiers, and any one of the first groups identified by the first group of identifiers can receive the first Group communication data sent by other devices in a group;
  • the receiving end After the receiving end receives the relay request message that carries the preset identifier sent by the sending end, the receiving end determines, according to the preset identifier, that the sending end searches for the device with the relay function, and further includes:
  • the receiving end determines that the receiving end is provided with the first group of identifiers.
  • the relay request message further carries a second group of identifiers, and any one of the second groups identified by the second group identifier is capable of receiving the Broadcast communication data sent by other devices in the two groups;
  • the receiving end After the receiving end receives the relay request message that carries the preset identifier sent by the sending end, the receiving end determines, according to the preset identifier, that the sending end searches for the device with the relay function, and further includes:
  • the receiving end determines that the receiving end is provided with the second group identifier.
  • the preset identifier is the second group identifier, and any one of the second groups identified by the second group identifier is capable of receiving the Broadcast communication data sent by other devices in the two groups;
  • the receiving end After the receiving end receives the relay request message that carries the preset identifier sent by the sending end, the receiving end determines, according to the preset identifier, that the sending end searches for the device with the relay function, and further includes:
  • the receiving end determines that the receiving end is provided with the second group identifier.
  • the receiving end may determine, according to the preset indication, whether to parse the received relay available message, and if receiving the relay available message receiving If the device that needs to have the relay function provides the relay service, the receiving end parses the relay available message, and if the receiving end that receives the relay available message does not need the device with the relay function to provide the relay service, the The receiving end discards the relay available message, and does not parse the relay available message, so that waste of resources can be avoided;
  • the receiving end may determine, according to the preset indication, whether to parse the received relay request message, if the receiving end of the relay request message is received. After receiving the service, the receiving end parses the relay request message. If the receiving end that receives the relay request message cannot provide the relay service, the receiving end drops the relay request message and does not parse the relay request message. In this way, the waste of resources can be avoided.
  • 1A is a schematic diagram of a transmission format of data in the prior art
  • 1B is a schematic diagram of a scenario of a UE-to-Network Relay in the prior art
  • FIG. 1C is a schematic diagram of a discovery of a Relay UE by a Remote UE in the prior art
  • FIG. 1D is another schematic diagram of discovering a Relay UE by a Remote UE in the prior art
  • FIG. 2A is a schematic structural diagram of a transmitting end according to an embodiment of the present invention.
  • 2B is a schematic structural diagram of a receiving end according to an embodiment of the present invention.
  • FIG. 3A is another schematic structural diagram of a transmitting end according to an embodiment of the present invention.
  • FIG. 3B is another schematic structural diagram of a receiving end according to an embodiment of the present invention.
  • 4A is a flowchart of transmitting data in an embodiment of the present invention.
  • 4B is a schematic diagram of a data transmission format according to an embodiment of the present invention.
  • 4C is a schematic diagram of a data transmission format according to an embodiment of the present invention.
  • 4D is a schematic diagram of a data transmission format according to an embodiment of the present invention.
  • 4E is another flowchart of transmitting data in an embodiment of the present invention.
  • FIG. 5A is another flowchart of transmitting data in an embodiment of the present invention.
  • FIG. 5B is another flowchart of transmitting data in an embodiment of the present invention.
  • 6A is an embodiment of transmitting data in an embodiment of the present invention.
  • 6B is another embodiment of transmitting data in an embodiment of the present invention.
  • FIG. 7A is another schematic structural diagram of a transmitting end according to an embodiment of the present invention.
  • FIG. 7B is another schematic structural diagram of a receiving end according to an embodiment of the present invention.
  • FIG. 8A is another schematic structural diagram of a transmitting end according to an embodiment of the present invention.
  • FIG. 8B is another schematic structural diagram of a receiving end according to an embodiment of the present invention.
  • Multiple means two or more. "and/or”, describing the association relationship of the associated objects, indicating that there may be three relationships, for example, A and/or B, which may indicate that there are three cases where A exists separately, A and B exist at the same time, and B exists separately.
  • the character "/" generally indicates that the contextual object is an "or" relationship.
  • the transmitting end includes a sending unit 20 and a receiving unit 21, where:
  • the sending unit 20 is configured to send a relay available message carrying a preset identifier, where the preset identifier is used to identify that the relay available message is a message that informs the receiving end that the sending end has a relay function;
  • the receiving unit 21 is configured to receive data that is sent by the receiving end according to the preset identifier.
  • the relay available message further carries the first group of identifiers, and any one of the first groups identified by the first group of identifiers can receive group communication data sent by other devices in the first group.
  • the receiving end is provided with a first group of identifiers.
  • the relay available message further carries a second group of identifiers, and any one of the second groups identified by the second group identifier can receive broadcast communication data sent by other devices in the second group.
  • the receiving end is provided with a second group of identifiers.
  • the preset identifier is a second group identifier, and any one of the second groups identified by the second group identifier can receive broadcast communication data sent by other devices in the second group, and receive The end is provided with a second set of identifiers.
  • the receiving end includes a receiving unit 200, a determining unit 210, and a sending unit 220, where:
  • the receiving unit 200 is configured to receive a relay available message that is sent by the sending end and carries a preset identifier, where the preset identifier is used to identify that the relay available message is a message that informs the sending end that the sending end has a relay function;
  • the determining unit 210 is configured to determine, according to the preset identifier, that the sending end has a relay function
  • the sending unit 220 is configured to send data to the sending end.
  • the relay available message further carries the first group of identifiers, and any one of the first groups identified by the first group of identifiers can receive group communication data sent by other devices in the first group;
  • the determining unit 210 is further configured to: determine that the receiving end is provided with the first group of identifiers.
  • the relay available message further carries a second group of identifiers, and any one of the second groups identified by the second group identifier can receive broadcast communication data sent by other devices in the second group;
  • the determining unit 210 is further configured to: determine that the receiving end is provided with the second group of identifiers.
  • the preset identifier is a second group identifier, and the second group identifier is identified. Any one of the second group of devices capable of receiving broadcast communication data transmitted by other devices in the second group;
  • the determining unit 210 is further configured to: determine that the receiving end is provided with the second group of identifiers.
  • the transmitting end includes a sending unit 30 and a receiving unit 31, where:
  • the sending unit 30 is configured to send a relay request message carrying a preset identifier, where the preset identifier is used to identify the relay request message as a message for finding a device with a relay function;
  • the receiving unit 31 is configured to receive a relay response message that is sent by the receiving end according to the preset identifier.
  • the sending unit 30 is further configured to send data to the receiving end.
  • the relay request message further carries the first group of identifiers, and any one of the first groups identified by the first group of identifiers can receive group communication data sent by other devices in the first group.
  • the receiving end is provided with a first group of identifiers.
  • the relay request message further carries the second group of identifiers, and any one of the second groups identified by the second group identifier can receive broadcast communication data sent by other devices in the second group.
  • the receiving end is provided with a second group of identifiers.
  • the preset identifier is a second group identifier, and any one of the second groups identified by the second group identifier can receive broadcast communication data sent by other devices in the second group, and receive The end is provided with a second set of identifiers.
  • the receiving end includes a receiving unit 300, a determining unit 310, and a sending unit 320, where:
  • the receiving unit 300 is configured to receive a relay request message that is sent by the sending end and that carries the preset identifier, where the preset identifier is used to identify the relay request message as a message for finding a device with a relay function;
  • the determining unit 310 is configured to determine, according to the preset identifier, that the sending end searches for a device with a relay function;
  • the sending unit 320 is configured to send a relay response message to the sending end, and receive data sent by the sending end according to the relay response message.
  • the relay request message further carries the first group of identifiers, and any one of the first groups identified by the first group of identifiers can receive the group sent by other devices in the first group.
  • the determining unit 310 is further configured to: determine that the receiving end is provided with the first group of identifiers.
  • the relay request message further carries a second group of identifiers, and any one of the second groups identified by the second group identifier can receive broadcast communication data sent by other devices in the second group;
  • the determining unit 310 is further configured to: determine that the receiving end is provided with the second group of identifiers.
  • the preset identifier is a second group identifier, and any one of the second groups identified by the second group identifier can receive broadcast communication data sent by other devices in the second group;
  • the determining unit 310 is further configured to: determine that the receiving end is provided with the second group of identifiers.
  • a process for transmitting data is as follows:
  • Step 400 The sending end sends a relay available message carrying a preset identifier, where the preset identifier is used to identify that the relay available message is a message that informs the receiving end that the transmitting end has a relay function.
  • Step 410 The transmitting end receives data sent by the receiving end according to the preset identifier.
  • the relay available message may further carry the first group of identifiers, and any one of the first groups identified by the first group of identifiers can receive group communication data sent by other devices in the first group.
  • the receiving end is provided with a first group of identifiers.
  • the first group of identifiers may be used as the destination identifier, so that the terminals belonging to the first group can parse the relay available message, as shown in FIG. 4B.
  • the relay available message may further carry the second group of identifiers, and any one of the second groups identified by the second group identifier can receive broadcast communication data sent by other devices in the second group. .
  • the second group identifier of any one of the second group may be configured by the base station by using a RRC (Radio Resource Control) connection reconfiguration message, or may be configured by the base station by using broadcast signaling.
  • RRC Radio Resource Control
  • the second group of identifiers may be used as the destination identifier, as shown in FIG. 4C.
  • the relay available messages can be resolved by the same group of terminals.
  • the data transmission format includes the source identifier, the destination identifier, the data, and the preset identifier.
  • the preset identifier may also be the second group identifier, and the second group identifier. Any one of the identified second groups can receive broadcast communication data sent by other devices in the second group, so that the receiving end that receives the relay available message can be distinguished according to the second group identifier.
  • the message is a group communication message or a relay available message.
  • the second group of identifiers may be set to FFFFF, and the receiving end is provided with a second group of identifiers.
  • the relay-available message can be sent by broadcast, without carrying the destination identifier, and only carrying the source identifier, the data, and the preset identifier, as shown in FIG. 4D.
  • the receiving end may determine, according to the preset indication, whether to parse the received relay available message, if the receiving end that receives the relay available message needs the relay function to provide the relay service.
  • the receiving end parses the relay available message, and if the receiving end that receives the relay available message does not need the relay function to provide the relay service, the receiving end drops the relay available message, and does not parse the middle Following the available messages, this reduces the power overhead at the receiving end.
  • FIG. 4E another process for transmitting data in the embodiment of the present invention is as follows:
  • Step 4000 The receiving end receives the relay available message that carries the preset identifier sent by the sending end, and the preset identifier is used to identify the relay available message to notify the sending end that the sending end has the relay function message;
  • Step 4100 The receiving end determines, according to the preset identifier, that the sending end has a relay function.
  • Step 4200 The receiving end sends data to the sending end.
  • the relay available message further carries the first group of identifiers, and any one of the first groups identified by the first group of identifiers can receive group communication data sent by other devices in the first group. ;
  • the first group of identifiers may be used as the destination identifier, so that the terminals belonging to the first group can parse the relay available message, as shown in FIG. 4B.
  • the receiving end determines, according to the preset identifier, that the sending end has the relay function, and further includes the following operations:
  • the receiving end determines that the receiving end is provided with the first group of identifiers.
  • the relay available message further carries a second group of identifiers, and any one of the second groups identified by the second group identifier can receive broadcast communication data sent by other devices in the second group;
  • the receiving end After receiving the relay available message that carries the preset identifier sent by the sending end, the receiving end determines, according to the preset identifier, that the sending end has the relay function, and further includes:
  • the receiving end determines that the receiving end is provided with the second group of identifiers.
  • the second group identifier of any one of the devices in the second group may be configured by the base station by using an RRC connection reconfiguration message, or may be configured by the base station by using broadcast signaling, or may be pre-configured. , there is no specific limit here.
  • the second group identifier may be used as the destination identifier, as shown in FIG. 4C, so that the terminals belonging to the same group can parse the relay available message.
  • the data transmission format includes the source identifier, the destination identifier, the data, and the preset identifier.
  • the preset identifier may also be the second group identifier, and the second group identifier. Any one of the identified second groups can receive broadcast communication data sent by other devices in the second group, so that the receiving end that receives the relay available message can be distinguished according to the second group identifier.
  • the message is a group communication message or a relay available message.
  • the second group of identifiers may be set to FFFFF, and the receiving end is provided with a second group of identifiers.
  • the relay-available message can be sent by broadcast, without carrying the destination identifier, and only carrying the source identifier, the data, and the preset identifier, as shown in FIG. 4D.
  • the receiving end may determine, according to the preset indication, whether to parse the received relay available message, if the receiving end that receives the relay available message needs the relay function to provide the relay service.
  • the receiving end parses the relay available message, and if the receiving end that receives the relay available message does not need the relay function to provide the relay service, the receiving end drops the relay available message, and does not parse the middle Following the available messages, this reduces the power overhead at the receiving end.
  • FIG. 4A and FIG. 4E describes that a device having a relay function transmits a relay. After the message is received, the device that needs the relay service finds the device with the relay function after receiving the relay available message, and then establishes a connection between the two devices. Of course, in actual applications, the relay service may also be needed.
  • the device sends a relay request message, and the device with the relay function responds after receiving the relay request message, and then the device that needs the relay service receives the response and finds the device with the relay function, and then between the two devices. Establish a connection, the specific implementation process is as follows.
  • another process for transmitting data is as follows:
  • Step 500 The sending end sends a relay request message carrying a preset identifier, where the preset identifier is used to identify the relay request message as a message for finding a device with a relay function.
  • Step 510 The sender receives a relay response message sent by the receiving end according to the preset identifier.
  • Step 520 The transmitting end sends data to the receiving end.
  • the relay request message further carries the first group of identifiers, and any one of the first groups identified by the first group of identifiers can receive group communication data sent by other devices in the first group.
  • the receiving end is provided with a first group of identifiers.
  • the first group of identifiers may be used as the destination identifier, so that the terminals belonging to the first group can parse the relay request message, as shown in FIG. 4B.
  • the relay request message further carries the second group of identifiers, and any one of the second groups identified by the second group identifier can receive broadcast communication data sent by other devices in the second group.
  • the receiving end is provided with a second group of identifiers.
  • the second group identifier of any one of the devices in the second group may be configured by the base station by using an RRC connection reconfiguration message, or may be configured by the base station by using broadcast signaling, or may be pre-configured. , there is no specific limit here.
  • the second group identifier may be used as the destination identifier, as shown in FIG. 4C, so that the terminals belonging to the same group can parse the relay request message.
  • the data transmission format includes the source identifier, the destination identifier, the data, and the preset identifier.
  • the preset identifier may also be the second group identifier, and the second group identifier. Any one of the identified second groups can receive broadcast communication data sent by other devices in the second group, so that the receiving end that receives the relay request message can be used according to the second group
  • the identifier can distinguish whether the received message is a group communication message or a relay request message, and then decide whether to parse the received message.
  • the second group of identifiers can be set to FFFFF.
  • the receiving end is configured with a second group identifier.
  • the relay request message can be sent in a broadcast manner, and does not carry the destination identifier, and only carries the source identifier, the data, and the preset identifier, as shown in FIG. 4D.
  • the receiving end may determine, according to the preset indication, whether to parse the received relay request message, and if the receiving end that receives the relay request message can provide the relay service, the receiving end parses the The relay request message, if the receiving end receiving the relay request message cannot provide the relay service, the receiving end drops the relay request message and does not parse the relay request message, so that waste of resources can be avoided.
  • another process for transmitting data is as follows:
  • Step 5000 The receiving end receives a relay request message that is sent by the sending end and carries a preset identifier, where the preset identifier is used to identify the relay request message as a message for finding a device with a relay function.
  • Step 5100 The receiving end determines, according to the preset identifier, that the sending end searches for a device with a relay function.
  • Step 5200 The receiving end sends a relay response message to the sending end, and receives data sent by the sending end according to the relay response message.
  • the relay request message further carries the first group of identifiers, and any one of the first groups identified by the first group of identifiers can receive group communication data sent by other devices in the first group;
  • the receiving end determines, according to the preset identifier, that the sending end searches for the device with the relay function, and further includes the following operations:
  • the receiving end determines that the receiving end is provided with the first group of identifiers.
  • the first group of identifiers may be used as the destination identifier, so that the terminals belonging to the first group can parse the relay request message, as shown in FIG. 4B.
  • the relay request message further carries a second group of identifiers, and any one of the second groups identified by the second group identifier can receive broadcast communication data sent by other devices in the second group;
  • the receiving end determines, according to the preset identifier, that the sending end searches for the device with the relay function, and further includes the following operations:
  • the receiving end determines that the receiving end is provided with the second group of identifiers.
  • the second group identifier of any one of the devices in the second group may be configured by the base station by using an RRC connection reconfiguration message, or may be configured by the base station by using broadcast signaling, or may be pre-configured. , there is no specific limit here.
  • the second group identifier may be used as the destination identifier, as shown in FIG. 4C, so that the terminals belonging to the same group can parse the relay request message.
  • the data transmission format includes the source identifier, the destination identifier, the data, and the preset identifier.
  • the preset identifier may also be the second group identifier, and the second group identifier. Any one of the identified second groups can receive broadcast communication data sent by other devices in the second group, so that the receiving end that receives the relay request message can be distinguished according to the second group identifier.
  • the message is a group communication message or a relay request message, and then decides whether to parse the received message.
  • the second group of identifiers can be set to FFFFF.
  • the receiving end determines, according to the preset identifier, that the sending end searches for the device with the relay function, and further includes the following operations:
  • the receiving end determines that the receiving end is provided with the second group of identifiers.
  • the relay request message can be sent in a broadcast manner, and does not carry the destination identifier, and only carries the source identifier, the data, and the preset identifier, as shown in FIG. 4D.
  • the receiving end may determine, according to the preset indication, whether to parse the received relay request message, and if the receiving end that receives the relay request message can provide the relay service, the receiving end parses the The relay request message, if the receiving end of the relay request message is unable to provide the relay service, the receiving end drops the relay request message and does not parse the relay request message, thereby reducing the power consumption of the receiving end.
  • UE1 can provide relay service, UE2 needs relay service, UE3 does not need relay service, UE1 Both UE2 and UE3 belong to the first group.
  • Step 600 The UE1 broadcasts a relay available message carrying the preset identifier and the first group identifier, and the preset identifier is used to identify the relay available message to notify the UE1 that the sender has the relay function, and the first group identifier is the destination identifier. ;
  • Step 610 The UE2 is configured with the first group of identifiers, and the relay service is required. Therefore, the received relay available message is parsed, and the data is transmitted by the UE1 according to the parsed relay available message.
  • Step 620 The UE3 is configured with the first group of identifiers, but does not need the relay service. Therefore, the relay available message is discarded, and the received relay available message is not parsed.
  • the UE3 since the UE2 needs the relay service and parses the relay available message, the UE3 does not need the relay service and does not parse the relay available message. Therefore, the UE3 is prevented from parsing the relay available message, and the power consumption of the receiving end is reduced.
  • the embodiment shown in FIG. 6A describes that the UE1 broadcasts a relay available message, and the UE2 discovers the UE1 by relaying the available message, and further transmits data with the UE1.
  • the UE2 broadcasts the relay request message to discover the UE1, and further, the UE1.
  • the data is transmitted, and the specific implementation process is as shown in FIG. 6B.
  • UE1 can provide relay service
  • UE2 needs relay service
  • UE3 cannot provide relay service
  • UE1, UE2, and UE3 all belong to the first group.
  • Step 6000 The UE2 sends a relay request message carrying a preset identifier and a first group identifier, where the preset identifier is used to identify the relay request message as a message for finding a device with a relay function, and the first group identifier is a destination identifier.
  • Step 6100 UE1 is configured with a first group of identifiers, and can provide a relay service. Therefore, the received relay request message is parsed, and the data is transmitted according to the parsed relay request message and the UE2.
  • Step 6200 The UE3 is configured with the first group of identifiers, but cannot provide the relay service. Therefore, the relay request message is discarded, and the received relay request message is not parsed.
  • the UE3 since the UE1 can provide the relay service and parse the relay request message, the UE3 cannot provide the relay service and does not parse the relay request message. Therefore, the UE3 is prevented from parsing the relay. Request a message to reduce the power consumption of the receiving end.
  • the transmitting end includes a transmitter 70 and a receiver 71, where:
  • the transmitter 70 is configured to send a relay available message carrying a preset identifier, where the preset identifier is used to identify that the relay available message is a message that informs the receiving end that the sending end has a relay function;
  • the receiver 71 is configured to receive data sent by the receiving end according to the preset identifier.
  • the relay available message further carries the first group of identifiers, and any one of the first groups identified by the first group of identifiers can receive group communication data sent by other devices in the first group.
  • the receiving end is provided with a first group of identifiers.
  • the relay available message further carries a second group of identifiers, and any one of the second groups identified by the second group identifier can receive broadcast communication data sent by other devices in the second group.
  • the receiving end is provided with a second group of identifiers.
  • the preset identifier is a second group identifier, and any one of the second groups identified by the second group identifier can receive broadcast communication data sent by other devices in the second group, and receive The end is provided with a second set of identifiers.
  • the receiving end includes a receiver 700, a processor 710, and a transmitter 720, where:
  • the receiver 700 is configured to receive a relay available message that is sent by the sending end and that carries a preset identifier, where the preset identifier is used to identify that the relay available message is a message that informs the sending end that the sending end has a relay function.
  • the processor 710 is configured to determine, according to the preset identifier, that the sending end has a relay function
  • the transmitter 720 is configured to send data to the sending end.
  • the relay available message further carries the first group of identifiers, and any one of the first groups identified by the first group of identifiers can receive group communication data sent by other devices in the first group;
  • the processor 710 is further configured to: determine that the receiving end is provided with the first group of identifiers.
  • the relay available message further carries a second group of identifiers, and any one of the second groups identified by the second group identifier can receive the wide range sent by other devices in the second group. Broadcast communication data;
  • the processor 710 is further configured to: determine that the receiving end is provided with the second group of identifiers.
  • the preset identifier is a second group identifier, and any one of the second groups identified by the second group identifier can receive broadcast communication data sent by other devices in the second group;
  • the processor 710 is further configured to: determine that the receiving end is provided with the second group of identifiers.
  • the transmitting end includes a transmitter 80 and a receiver 81, where:
  • the transmitter 80 is configured to send a relay request message carrying a preset identifier, where the preset identifier is used to identify the relay request message as a message for finding a device with a relay function;
  • the receiver 81 is configured to receive a relay response message sent by the receiving end according to the preset identifier.
  • Transmitter 80 is also used to transmit data to the receiving end.
  • the relay request message further carries the first group of identifiers, and any one of the first groups identified by the first group of identifiers can receive group communication data sent by other devices in the first group.
  • the receiving end is provided with a first group of identifiers.
  • the relay request message further carries the second group of identifiers, and any one of the second groups identified by the second group identifier can receive broadcast communication data sent by other devices in the second group.
  • the receiving end is provided with a second group of identifiers.
  • the preset identifier is a second group identifier, and any one of the second groups identified by the second group identifier can receive broadcast communication data sent by other devices in the second group, and receive The end is provided with a second set of identifiers.
  • the receiving end includes a receiver 800, a processor 810, and a transmitter 820, where:
  • the receiver 800 is configured to receive a relay request message that is sent by the sending end and carries a preset identifier, where the preset identifier is used to identify the relay request message as a message for finding a device with a relay function;
  • the processor 810 is configured to determine, according to the preset identifier, that the sending end searches for a device that has a relay function;
  • a transmitter 820 configured to send a relay response message to the sending end, and receive the sending end based on the trunk ringing The data that should be sent by the message.
  • the relay request message further carries the first group of identifiers, and any one of the first groups identified by the first group of identifiers can receive group communication data sent by other devices in the first group;
  • the processor 810 is further configured to: determine that the receiving end is configured with the first group of identifiers.
  • the relay request message further carries a second group of identifiers, and any one of the second groups identified by the second group identifier can receive broadcast communication data sent by other devices in the second group;
  • the processor 810 is further configured to: determine that the receiving end is provided with the second group of identifiers.
  • the preset identifier is a second group identifier, and any one of the second groups identified by the second group identifier can receive broadcast communication data sent by other devices in the second group;
  • the processor 810 is further configured to: determine that the receiving end is provided with the second group of identifiers.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus functions in one or more blocks of a flow or a flow diagram and/or block diagram of a flowchart.

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

Abstract

La présente invention concerne le domaine technique des communications mobiles et, en particulier, un procédé et un appareil de transmission de données. Selon le procédé, une extrémité de réception peut déterminer, selon une indication prédéfinie, s'il faut analyser un message disponible relayé reçu ; si l'extrémité de réception recevant le message disponible relayé a besoin d'un dispositif ayant une fonction de relais pour fournir un service de relais, l'extrémité réception analyse le message disponible relayé ; et si l'extrémité de réception recevant le message disponible relayé n'a pas besoin de dispositif ayant une fonction de relais pour fournir un service de relais, l'extrémité réception rejette le message disponible relayé et n'analyse pas le message disponible relayé. De cette manière, il est possible d'éviter un gaspillage des ressources.
PCT/CN2015/079069 2015-05-15 2015-05-15 Procédé et appareil de transmission de données WO2016183730A1 (fr)

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PCT/CN2015/079069 WO2016183730A1 (fr) 2015-05-15 2015-05-15 Procédé et appareil de transmission de données

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CN112584352B (zh) * 2019-09-30 2023-04-07 北京百度网讯科技有限公司 车辆消息传输方法、装置、电子设备及存储介质

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