WO2024092828A1 - Connection establishment method and apparatus - Google Patents

Connection establishment method and apparatus Download PDF

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Publication number
WO2024092828A1
WO2024092828A1 PCT/CN2022/130136 CN2022130136W WO2024092828A1 WO 2024092828 A1 WO2024092828 A1 WO 2024092828A1 CN 2022130136 W CN2022130136 W CN 2022130136W WO 2024092828 A1 WO2024092828 A1 WO 2024092828A1
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WO
WIPO (PCT)
Prior art keywords
relay
rlc
connection
reason
base station
Prior art date
Application number
PCT/CN2022/130136
Other languages
French (fr)
Chinese (zh)
Inventor
杨星
Original Assignee
北京小米移动软件有限公司
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 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN202280004292.9A priority Critical patent/CN116034625A/en
Priority to PCT/CN2022/130136 priority patent/WO2024092828A1/en
Publication of WO2024092828A1 publication Critical patent/WO2024092828A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/19—Connection re-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • 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 disclosure relates to the field of communication technology, and in particular to a method and device for establishing a connection.
  • a sidelink communication method is introduced.
  • a UE may communicate with the base station through the relay of another UE instead of directly connecting to the base station.
  • the UE that is not connected to the base station is called a remote UE, and the UE that provides relay function is called a relay UE.
  • the remote UE and the relay UE communicate through sidelink unicast.
  • RRC Radio Resource Control
  • a relay UE in an idle or inactive state can establish an RRC connection through the connection establishment process, thereby entering a connected state.
  • the relay UE needs to send an RRC establishment request message to the base station, which needs to carry the reason for establishing the connection. Therefore, how to set the establishment reason or recovery reason is a problem that needs to be solved urgently.
  • an embodiment of the present disclosure provides a method for establishing a connection, the method being executed by a relay terminal device UE, the method comprising:
  • a reason is set according to the indication information, where the reason includes at least one of the following: a reason why the relay UE establishes a connection with the base station, and a reason why the relay UE resumes a connection with the base station.
  • the reasons include:
  • the reason for the relay UE to establish a radio resource control (RRC) connection with the base station is the reason for establishing a connection between the relay UE and the base station;
  • the reason for the relay UE to establish the RRC connection with the base station is the reason for the relay UE to restore the connection with the base station.
  • the receiving of the indication information sent by the remote UE comprises: receiving a direct sidelink RRC message sent by the remote UE, wherein the sidelink RRC message carries the indication information;
  • the setting of the cause according to the indication information includes: setting the cause for the relay UE to establish an RRC connection with the base station as the cause indicated by the indication information.
  • the receiving the indication information sent by the remote UE includes: receiving a sidelink relay adaptation protocol SRAP data unit PDU sent by the remote UE;
  • the setting of the cause according to the indication information includes: setting the cause of establishing the RRC connection between the relay UE and the base station according to a radio link control layer RLC entity corresponding to the SRAPPDU.
  • the reason for setting, according to the RLC entity corresponding to the SRAPPDU, the relay UE to establish an RRC connection with the base station includes:
  • the RLC entity is a first RLC entity, and the first cause is set as a cause for the relay UE to establish an RRC connection with a base station.
  • the first reason is any one of the following:
  • Emergency call emergency high priority access highPriorityAccess
  • user terminated access mt-Access user initiated signaling mo-Signalling
  • user initiated data mo-Data user initiated voice mo-VoiceCall
  • user initiated video call mo-VideoCall user initiated short message mo-SMS
  • priority multimedia service priority access mps-PriorityAccess dedicated service priority access mcs-PriorityAccess.
  • the method further includes:
  • acquiring the correspondence between the first RLC and the first cause includes:
  • the reason for setting, according to the RLC entity corresponding to the SRAPPDU, the relay UE to establish an RRC connection with the base station includes:
  • the RLC entity is a second RLC entity, and the second reason is set as a reason for the relay UE to establish an RRC connection with the base station.
  • the second reason is any one of the following:
  • User-terminated access mt-Access User-initiated signaling mo-Signalling, user-initiated data mo-Data, user-initiated voice mo-VoiceCall, user-initiated video call mo-VideoCall, user-initiated short message mo-SMS.
  • the method further includes:
  • the acquiring the identifier and configuration of the first RLC or the second RLC includes:
  • system information sent by a network device, where the system information carries an identifier and a configuration of the first RLC or the second RLC.
  • RRC message sent by a remote UE, where the RRC message carries an identifier and a configuration of the first RLC or the second RLC.
  • the method further includes:
  • a corresponding first RLC entity or second RLC entity is established according to the identifier and configuration of the first RLC or the second RLC.
  • an embodiment of the present disclosure provides a method for establishing a connection, the method being executed by a remote terminal device UE, the method comprising:
  • the sending indication information to the relay UE includes:
  • the method further includes:
  • setting instruction information includes at least one of the following:
  • the indication information is set according to the service type that triggers the connection establishment; and the indication information is set by receiving the indication information sent by the network device.
  • the sending indication information to the relay UE includes:
  • a sidelink relay adaptation protocol SRAP data unit PDU is sent to the relay UE, and based on the radio link control layer RLC entity corresponding to the sidelink SRAPPDU, the relay UE is indicated the reason for establishing an RRC connection with the base station.
  • the method further includes:
  • An RRC message is sent to the relay UE, where the RRC message carries an identifier and a configuration of the first RLC or the second RLC.
  • the method further includes:
  • the method further includes:
  • the first reason is any one of the following:
  • Emergency call emergency high priority access highPriorityAccess
  • user terminated access mt-Access user initiated signaling mo-Signalling
  • user initiated data mo-Data user initiated voice mo-VoiceCall
  • user initiated video call mo-VideoCall user initiated short message mo-SMS
  • priority multimedia service priority access mps-PriorityAccess dedicated service priority access mcs-PriorityAccess.
  • an embodiment of the present disclosure provides a method for establishing a connection, the method being performed by a network device, the method comprising:
  • the sending indication information to the remote UE includes:
  • the indication information determined when adding the indirect path is sent to the remote UE.
  • the method further includes:
  • an embodiment of the present disclosure provides a device for establishing a connection, characterized in that the device is arranged in a relay terminal device UE, and the device includes:
  • a receiving module used for receiving indication information sent by a remote UE
  • a processing module is used to set a reason according to the indication information, where the reason includes at least one of the following: a reason why the relay UE establishes a connection with the base station, and a reason why the relay UE restores the connection with the base station.
  • the reasons include:
  • the reason for the relay UE to establish a radio resource control (RRC) connection with the base station is the reason for establishing a connection between the relay UE and the base station;
  • the reason for the relay UE to establish the RRC connection with the base station is the reason for the relay UE to restore the connection with the base station.
  • the receiving module is further used to receive a direct sidelink RRC message sent by the remote UE, wherein the sidelink RRC message carries the indication information;
  • the processing module is further used to set the reason for the relay UE to establish the RRC connection with the base station to the reason indicated by the indication information.
  • the receiving module is further used to receive a sidelink relay adaptation protocol SRAP data unit PDU sent by the remote UE;
  • the processing module is also used to set the reason for the relay UE to establish an RRC connection with the base station according to the radio link control layer RLC entity corresponding to the SRAP PDU.
  • the processing module is further used for the RLC entity being the first RLC entity, setting the first cause as the cause for the relay UE to establish an RRC connection with the base station.
  • the first reason is any one of the following:
  • Emergency call emergency high priority access highPriorityAccess
  • user terminated access mt-Access user initiated signaling mo-Signalling
  • user initiated data mo-Data user initiated voice mo-VoiceCall
  • user initiated video call mo-VideoCall user initiated short message mo-SMS
  • priority multimedia service priority access mps-PriorityAccess dedicated service priority access mcs-PriorityAccess.
  • the device further includes:
  • the first acquisition module is used to acquire the correspondence between the first RLC identifier and the first cause.
  • the first acquisition module is further configured to:
  • the processing module is further used for the RLC entity being a second RLC entity, setting the second cause as a cause for the relay UE to establish an RRC connection with the base station.
  • the second reason is any one of the following:
  • User-terminated access mt-Access User-initiated signaling mo-Signalling, user-initiated data mo-Data, user-initiated voice mo-VoiceCall, user-initiated video call mo-VideoCall, user-initiated short message mo-SMS.
  • the device further includes:
  • the second acquisition module is used to acquire the identifier and configuration of the first RLC or the second RLC.
  • the second acquisition module is further configured to:
  • system information sent by a network device, where the system information carries an identifier and a configuration of the first RLC or the second RLC.
  • RRC message sent by a remote UE, where the RRC message carries an identifier and a configuration of the first RLC or the second RLC.
  • the device further includes:
  • An establishing module is used to establish a corresponding first RLC entity or second RLC entity according to the identifier and configuration of the first RLC or the second RLC.
  • an embodiment of the present disclosure provides a device for establishing a connection, the device being arranged in a remote terminal device UE, and the device comprising:
  • the sending module is used to send indication information to the relay UE to indicate the reason why the relay UE establishes a connection with the base station.
  • the sending module is also used to send a direct sidelink radio resource control RRC message to the relay UE, and the sidelink RRC message carries the indication information.
  • the device further includes:
  • the processing module is used to set the indication information, wherein the setting indication information includes at least one of the following:
  • the indication information is set according to the service type that triggers the connection establishment; and the indication information is set by receiving the indication information sent by the network device.
  • the sending module is also used to send a sidelink relay adaptation protocol SRAP data unit PDU to the relay UE, and indicate the reason why the relay UE establishes an RRC connection with the base station based on the radio link control layer RLC entity corresponding to the sidelink SRAP PDU.
  • the device further includes:
  • the sending module is further used to send an RRC message to the relay UE, where the RRC message carries the identifier and configuration of the first RLC or the second RLC.
  • the device further includes:
  • the sending module is further used to send the correspondence between the first RLC identifier and the first cause to the relay UE.
  • the device further includes:
  • the receiving module is used to receive any of the following information sent by the network device:
  • the first reason is any one of the following:
  • Emergency call emergency high priority access highPriorityAccess
  • user terminated access mt-Access user initiated signaling mo-Signalling
  • user initiated data mo-Data user initiated voice mo-VoiceCall
  • user initiated video call mo-VideoCall user initiated short message mo-SMS
  • priority multimedia service priority access mps-PriorityAccess dedicated service priority access mcs-PriorityAccess.
  • an embodiment of the present disclosure provides a device for establishing a connection, the device being executed by a network device, and the device comprising:
  • the sending module is used to send indication information to the remote terminal device UE to indicate the reason why the relay UE establishes a connection with the base station.
  • the sending module is further used to send the indication information determined when adding the indirect path to the remote UE.
  • the device further includes:
  • the sending module is further configured to send any of the following information to the remote UE:
  • an embodiment of the present disclosure provides a computer-readable storage medium for storing instructions used by the device for establishing the above-mentioned connection.
  • the device for establishing the connection executes the method described in the first aspect, the second aspect or the third aspect.
  • an embodiment of the present disclosure further provides a computer program product comprising a computer program, which, when executed on a computer, enables the computer to execute the method described in the first aspect or the second aspect above.
  • an embodiment of the present disclosure provides a chip system, which includes at least one processor and an interface, for supporting a communication device to implement the functions involved in the first aspect or the second aspect, for example, determining or processing at least one of the data and information involved in the above method.
  • the chip system also includes a memory, which is used to store computer programs and data necessary for the communication device.
  • the chip system can be composed of chips, or it can include chips and other discrete devices.
  • an embodiment of the present disclosure further provides a computer program, which, when executed on a computer, enables the computer to execute the method described in the first or second aspect above.
  • a method and device for establishing a connection provided by an embodiment of the present disclosure, wherein a relay UE receives indication information sent by a remote UE and sets a reason according to the indication information, and the reason includes at least one of the following: the reason why the relay UE establishes a connection with a base station, and the reason why the relay UE restores the connection with the base station, so that the relay UE can reasonably set the reason for establishing a connection or the reason for restoring a connection to avoid MP adding failure.
  • FIG1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure.
  • FIG2 is a schematic diagram of a flow chart of a method for establishing a connection provided by an embodiment of the present disclosure
  • FIG3 is a schematic diagram of a flow chart of another method for establishing a connection provided by an embodiment of the present disclosure
  • FIG4 is a schematic diagram of a flow chart of another method for establishing a connection provided by an embodiment of the present disclosure
  • FIG5 is a schematic diagram of a flow chart of another method for establishing a connection provided in an embodiment of the present disclosure
  • FIG6 is a flow chart of another method for establishing a connection provided by an embodiment of the present disclosure.
  • FIG7 is a schematic diagram of a flow chart of another method for establishing a connection provided in an embodiment of the present disclosure.
  • FIG8 is a schematic diagram of a flow chart of another method for establishing a connection provided by an embodiment of the present disclosure.
  • FIG9 is a schematic flow chart of another method for establishing a connection provided in an embodiment of the present disclosure.
  • FIG10 is a schematic diagram of a flow chart of another method for establishing a connection provided in an embodiment of the present disclosure.
  • FIG11 is a schematic flow chart of another method for establishing a connection provided in an embodiment of the present disclosure.
  • FIG12 is a schematic flow chart of another method for establishing a connection provided in an embodiment of the present disclosure.
  • FIG13 is a schematic diagram of a flow chart of another method for establishing a connection provided in an embodiment of the present disclosure.
  • FIG14 is a schematic diagram of the structure of a device for establishing a connection provided by an embodiment of the present disclosure
  • FIG15 is a schematic diagram of the structure of another device for establishing a connection provided by an embodiment of the present disclosure.
  • FIG16 is a schematic diagram of the structure of another device for establishing a connection provided by an embodiment of the present disclosure.
  • FIG17 is a schematic diagram of the structure of another device for establishing a connection provided by an embodiment of the present disclosure.
  • FIG18 is a schematic diagram of the structure of a communication device provided in an embodiment of the present disclosure.
  • FIG. 19 is a schematic diagram of the structure of a chip provided in an embodiment of the present disclosure.
  • FIG. 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure.
  • the communication system may include, but is not limited to, a network device and a terminal device.
  • the number and form of devices shown in FIG. 1 are only used for example and do not constitute a limitation on the embodiment of the present disclosure. In actual applications, two or more network devices and two or more terminal devices may be included.
  • the communication system shown in FIG. 1 includes, for example, a network device 11, a relay terminal device 12, and a remote terminal device 13.
  • LTE long term evolution
  • 5G fifth generation
  • NR 5G new radio
  • the network device 11 in the embodiment of the present disclosure is an entity on the network side for transmitting or receiving signals.
  • the network device 101 may be an evolved NodeB (eNB), a transmission point (TRP), a next generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (WiFi) system.
  • eNB evolved NodeB
  • TRP transmission point
  • gNB next generation NodeB
  • WiFi wireless fidelity
  • the embodiment of the present disclosure does not limit the specific technology and specific device form adopted by the network device.
  • the network device provided in the embodiment of the present disclosure may be composed of a central unit (CU) and a distributed unit (DU), wherein the CU may also be referred to as a control unit.
  • CU central unit
  • DU distributed unit
  • the CU-DU structure may be used to split the protocol layer of the network device, such as a base station, and the functions of some protocol layers are placed in the CU for centralized control, and the functions of the remaining part or all of the protocol layers are distributed in the DU, and the DU is centrally controlled by the CU.
  • the relay terminal device 12 or the remote terminal device 13 in the embodiment of the present disclosure is an entity for receiving or transmitting signals on the user side, such as a mobile phone.
  • the terminal device may also be referred to as a terminal device (terminal), a user equipment (UE), a mobile station (MS), a mobile terminal device (MT), etc.
  • the terminal device may be a car with communication function, a smart car, a mobile phone (mobile phone), a wearable device, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in a smart city (smart city), a wireless terminal device in a smart home (smart home), etc.
  • the embodiments of the present disclosure do not limit the specific technology and specific device form adopted by the terminal device.
  • the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure.
  • a person skilled in the art can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.
  • a sidelink communication method is introduced.
  • a UE may communicate with the base station through the relay of another UE instead of directly connecting to the base station.
  • the UE that is not connected to the base station is called a remote UE, and the UE that provides relay function is called a relay UE.
  • the remote UE and the relay UE communicate through sidelink unicast.
  • RRC Radio Resource Control
  • a relay UE in an idle or inactive state can establish an RRC connection through the connection establishment process, thereby entering a connected state.
  • the relay UE needs to send an RRC establishment request message to the base station, which needs to carry the reason for establishing the connection. Therefore, how to set the establishment reason or recovery reason is a problem that needs to be solved urgently.
  • Figure 2 is a schematic diagram of a flow chart of a method for establishing a connection provided by an embodiment of the present disclosure, and the method is applied to a relay UE. As shown in Figure 2, the method may include but is not limited to the following steps:
  • Step S201 receiving indication information sent by a remote UE.
  • the remote UE can maintain connection with the network through both direct and indirect paths. This function is called multipath connection (MP).
  • MP multipath connection
  • the remote UE can only support multipath connection when it is in a connected state.
  • the bearer of the remote UE can be transmitted only through the direct path, which is called direct bearer (Direct Bearer), or only through the indirect path, which is called indirect bearer (Indirect Bearer), or through both direct and indirect paths, which is called multipath bearer (Multipath Bearer).
  • Direct Bearer direct bearer
  • Indirect Bearer indirect bearer
  • Multipath Bearer multipath bearer
  • the relay UE providing the indirect path can be in any RRC state, including connected, idle or inactive.
  • the relay UE in idle or inactive state needs to enter the connected state.
  • the relay UE When the relay UE receives the indication information sent by the remote UE, in some embodiments, when the relay UE is in an idle state, a connection establishment process is triggered; in some embodiments, when the relay UE is in an inactive state, a connection recovery process is triggered.
  • Step S202 setting a reason according to the indication information, where the reason includes at least one of the following: a reason why the relay UE establishes a connection with the base station, and a reason why the relay UE resumes a connection with the base station.
  • the reason for the relay UE to establish a connection with the base station is set according to the current state of the relay UE (inactive state or idle state).
  • the connection establishment process is triggered and the reason for establishing the connection is set; that is, in response to the relay UE being in an idle state, the reason for the relay UE to establish a radio resource control RRC connection with the base station is the reason for establishing the connection between the relay UE and the base station.
  • a connection recovery process is triggered and a connection recovery reason is set; in response to the relay UE being in an inactive state, the reason for the relay UE to establish an RRC connection with the base station is the reason for the relay UE to recover the connection with the base station.
  • the relay UE receives the indication information sent by the remote UE and sets the reason for the relay UE to establish a connection with the base station according to the indication information, so that the relay UE can reasonably set the reason for establishing the connection or the reason for restoring the connection to avoid MP addition failure.
  • Figure 3 is a flow chart of a method for establishing a connection provided by an embodiment of the present disclosure, and the method is executed by a remote terminal device UE. As shown in Figure 3, the method may include but is not limited to the following steps:
  • Step S301 The remote UE sends indication information to the relay UE to indicate the reason why the relay UE establishes a connection with the base station.
  • an indication message is sent to the relay UE to indicate the reason for the relay UE to establish a connection with the base station, triggering the relay UE's connection recovery process or connection establishment process, so that the relay UE completes the setting of the connection reason according to the received indication message.
  • an indication message is sent to the relay UE, and the relay UE sets the reason for establishing a connection between the relay UE and the base station according to the indication message sent by the remote UE, so that the relay UE can reasonably set the reason for establishing the connection or the reason for restoring the connection to avoid MP addition failure.
  • FIG4 is a flow chart of another method for establishing a connection provided by the present disclosure. The method is applied to a communication process between a remote UE and a relay UE. As shown in FIG4, the method for establishing a connection may include the following steps:
  • Step S401 the remote UE sends a direct sidelink radio resource control RRC message to the relay UE, and the sidelink RRC message carries the indication information.
  • a direct sidelink RRC message is sent to the relay UE, and the sidelink RRC message carries the indication information.
  • the method of sending indication information is not limited to the sidelink RRC message, and the sidelink relay adaptation protocol (SRAP) data unit (PDU) can also be sent, which is not limited in the specific embodiments of the present disclosure.
  • SRAP sidelink relay adaptation protocol
  • Step S402 the relay UE receives the direct sidelink RRC message sent by the remote UE.
  • the relay UE receives the direct sidelink RRC message sent by the remote UE, so that the relay UE in the idle or inactive state triggers the connection recovery process or the connection establishment process.
  • Step S403 The relay UE sets the reason for establishing the RRC connection between the relay UE and the base station to the reason indicated by the indication information.
  • the relay UE After the relay UE obtains the sidelink RRC message based on step 402 and parses the indication information carried by the message, it sets the reason for establishing the RRC connection with the base station to the reason indicated by the indication information, that is, sets the reason for the connection to be the same as the indication information.
  • the remote UE sends a direct sidelink RRC message to the relay UE, and the relay UE receives the direct sidelink RRC message sent by the remote UE, and sets the reason for the relay UE to establish an RRC connection with the base station to the reason indicated by the indication information, so that the relay UE can reasonably set the reason for establishing the connection or the reason for restoring the connection to avoid MP adding failure.
  • FIG5 is a flow chart of another method for establishing a connection provided by the present disclosure. The method is applied to a communication process between a remote UE and a relay UE. As shown in FIG5, the method for establishing a connection may include the following steps:
  • Step S501 The remote UE sets indication information.
  • the setting of the indication information includes at least one of the following: setting the indication information according to the service type that triggers the establishment of the connection; setting the indication information by receiving the indication information sent by the network device.
  • the remote UE may set the indication information in the following two ways, but not limited to: way 1: the remote UE determines the indication information according to the service type transmitted on the indirect link; way 2: when the base station adds the indirect path, it indicates the reason, and the remote UE determines the indication information according to the indication of the network device (such as the base station). No specific limitation is made.
  • Step S502 The remote UE sends a direct sidelink RRC message to the relay UE, and the sidelink RRC message carries the indication information.
  • a direct sidelink RRC message is sent to the relay UE, and the sidelink RRC message carries the indication information.
  • the method of sending the indication information is not limited to the sidelink RRC message, and the sidelink SRAPPDU can also be sent, which is not limited in the specific embodiments of the present disclosure.
  • Step S503 the relay UE receives the direct sidelink RRC message sent by the remote UE.
  • the relay UE receives the direct sidelink RRC message sent by the remote UE, so that the relay UE in the idle or inactive state triggers the connection recovery process or the connection establishment process.
  • Step S504 The relay UE sets the reason for establishing the RRC connection between the relay UE and the base station to the reason indicated by the indication information.
  • the relay UE After the relay UE obtains the sidelink RRC message based on step 502 and parses the indication information carried by the message, it sets the reason for establishing the RRC connection with the base station to the reason indicated by the indication information, that is, sets the reason for the connection to be the same as the indication information.
  • the remote UE sets indication information, wherein the setting of the indication information includes at least one of the following: setting the indication information according to the service type that triggers the establishment of the connection; setting the indication information by receiving the indication information sent by the network device, and sending a sidelink RRC message carrying the indication information to the relay UE, the relay UE receives the direct sidelink RRC message sent by the remote UE, and sets the reason for the relay UE to establish the RRC connection with the base station to the reason indicated by the indication information, so that the relay UE can reasonably set the reason for establishing the connection or the reason for restoring the connection, thereby avoiding the failure of MP adding.
  • FIG6 is a flow chart of another method for establishing a connection provided by the present disclosure. The method is applied to a communication process between a remote UE and a relay UE. As shown in FIG6, the method for establishing a connection may include the following steps:
  • step S601 the remote UE sends a sidelink SRAP PDU to the relay UE, and indicates the reason why the relay UE establishes an RRC connection with the base station based on the RLC entity corresponding to the sidelink SRAPPDU.
  • the remote UE When the remote UE needs to perform data forwarding, it sends a sidelink SRAP PDU to the relay UE, and indicates the reason for the relay UE to establish an RRC connection with the base station based on the RLC entity corresponding to the sidelink SRAPPDU.
  • the RLC entity described in the examples of the present disclosure is used for MP transmission.
  • the method of sending indication information is not limited to sending a sidelink SRAP PDU message, but may also be sent by sending a direct sidelink RRC message, which is not limited in the specific embodiments of the present disclosure.
  • Step S602 The relay UE receives the sidelink SRAPPDU sent by the remote UE.
  • the relay UE receives the direct connection sidelink SR APPDU sent by the remote UE, so that the relay UE in an idle state or an inactive state triggers a connection recovery process or a connection establishment process.
  • Step S603 The relay UE sets a reason for establishing an RRC connection between the relay UE and the base station according to the RLC entity corresponding to the SRAPPDU.
  • the relay UE After the relay UE obtains the SRAPPDU based on step 602, it parses and sets the RLC entity corresponding to the SRAPPDU, and the relay UE sets the reason for establishing the RRC connection between the relay UE and the base station according to the RLC entity.
  • the remote UE sends a sidelink SRAP PDU to the relay UE, and the RLC entity corresponding to the sidelink SRAPPDU indicates the reason for the relay UE to establish an RRC connection with the base station.
  • the relay UE sets the reason for the relay UE to establish an RRC connection with the base station according to the RLC entity corresponding to the SRAPPDU, so that the relay UE can reasonably set the reason for establishing the connection or the reason for restoring the connection to avoid MP adding failure.
  • FIG. 7 is a flow chart of another method for establishing a connection provided by the present disclosure. The method is applied to a communication process between a remote UE and a relay UE. As shown in FIG. 7 , the method for establishing a connection may include the following steps:
  • Step S701 the remote UE sends a sidelink SRAPPDU to the relay UE, and indicates the reason for the relay UE to establish an RRC connection with the base station based on the RLC entity corresponding to the sidelink SRAPPDU.
  • the remote UE When the remote UE needs to perform data forwarding, it sends a sidelink SRAP PDU to the relay UE, and indicates the reason for the relay UE to establish an RRC connection with the base station based on the RLC entity corresponding to the sidelink SRAPPDU.
  • the RLC entity described in the examples of the present disclosure is used for MP transmission.
  • the method of sending indication information is not limited to sending a sidelink SRAP PDU message, but may also be sent by sending a direct sidelink RRC message, which is not limited in the specific embodiments of the present disclosure.
  • Step S702 The relay UE receives the sidelink SRAPPDU sent by the remote UE.
  • the relay UE receives the direct connection sidelink SR APPDU sent by the remote UE, so that the relay UE in an idle state or an inactive state triggers a connection recovery process or a connection establishment process.
  • Step S703 the RLC entity is a first RLC entity, and the relay UE sets a first cause as a cause for establishing an RRC connection between the relay UE and the base station.
  • the relay UE After the relay UE obtains the SRAPPDU based on step 702, it parses and sets the RLC entity corresponding to the SRAPPDU as the first RLC entity, and the relay UE sets the first reason as the reason for the relay UE to establish an RRC connection with the base station.
  • the first reason is any one of the following: emergency call emergency, high priority access highPriorityAccess, user terminated access mt-Access, user initiated signaling mo-Signalling, user initiated data mo-Data, user initiated voice mo-VoiceCall, user initiated video call mo-VideoCall, user initiated short message mo-SMS, prioritized multimedia service priority access mps-PriorityAccess, and dedicated service priority access mcs-PriorityAccess.
  • the remote UE sends a sidelink SRAP PDU to the relay UE, and the RLC entity corresponding to the sidelink SRAPPDU indicates the reason for the relay UE to establish an RRC connection with the base station.
  • the relay UE receives the sidelink SRAPPDU sent by the remote UE, and after setting the RLC entity as the first RLC entity, the relay UE sets the first reason as the reason for the relay UE to establish an RRC connection with the base station. This allows the relay UE to reasonably set the reason for establishing a connection or restoring a connection, avoiding MP addition failure.
  • FIG8 is a flow chart of another method for establishing a connection provided by the present disclosure. The method is applied to a communication process between a remote UE and a relay UE. As shown in FIG8, the method for establishing a connection may include the following steps:
  • Step S801 The remote UE sends an RRC message to the relay UE, where the RRC message carries an identifier and configuration of the first RLC or the second RLC.
  • the remote UE receives any of the following information sent by the network device: the first RLC identifier and configuration, the second RLC identifier and configuration.
  • the specific received content and quantity are not limited.
  • the first RLC identifier and configuration, the second RLC identifier and configuration may be sent by the base station to the remote UE, may be sent to the remote UE via a system message, may be sent to the remote UE via an RRC reconfiguration message, or may be specified in the standard. This disclosure embodiment does not limit this.
  • step S802 the remote UE sends a sidelink SRAP PDU to the relay UE, and indicates the reason for establishing an RRC connection between the relay UE and the base station based on the RLC entity corresponding to the sidelink SRAPPDU.
  • the remote UE When the remote UE needs to perform data forwarding, it sends a sidelink SRAP PDU to the relay UE, and indicates the reason for the relay UE to establish an RRC connection with the base station based on the RLC entity corresponding to the sidelink SRAPPDU.
  • the RLC entity described in the examples of the present disclosure is used for MP transmission.
  • the remote UE may first send an RRC message carrying the identifier and configuration of the first RLC or the second RLC, and then send the sidelink SRAP PDU; or, first send the sidelink SRAP PDU, and then send the RRC message carrying the identifier and configuration of the first RLC or the second RLC; or, simultaneously send an RRC message carrying the identifier and configuration of the first RLC or the second RLC and the sidelink SRAP PDU, or other sending orders, which are not limited in the embodiments of the present disclosure.
  • Step S803 The relay UE receives the sidelink SRAPPDU sent by the remote UE.
  • Step S804 The relay UE obtains the identifier and configuration of the first RLC or the second RLC.
  • the relay UE receives an RRC message sent by a remote UE, where the RRC message carries an identifier and a configuration of the first RLC or the second RLC.
  • the relay UE obtains the identifier and configuration of the first RLC or the second RLC
  • the following methods may also be used, for example: obtaining the identifier and configuration of the first RLC or the second RLC according to the standard; or receiving system information sent by the network device, the system information carrying the identifier and configuration of the first RLC or the second RLC.
  • the embodiments of the present disclosure are not limited.
  • the relay UE receives RRC messages and sidelink SRAP PDU.
  • the relay UE may first receive the RRC message and then receive the sidelink SRAP PDU; or, first receive the sidelink SRAP PDU and then receive the RRC message; or, receive the RRC message and the sidelink SRAP PDU at the same time, or other sending order or other receiving order, which is not limited to the embodiments of the present disclosure.
  • Step S805 The relay UE sets a reason for establishing an RRC connection between the relay UE and the base station according to the RLC entity corresponding to the SRAPPDU.
  • the relay UE After the relay UE obtains the SRAPPDU based on step 805, it parses and sets the RLC entity corresponding to the SRAPPDU, and the relay UE sets the reason for establishing the RRC connection between the relay UE and the base station according to the RLC entity.
  • the remote UE sends a sidelink SRAP PDU to the relay UE, and the RLC entity corresponding to the sidelink SRAPPDU indicates the reason for the relay UE to establish an RRC connection with the base station.
  • the remote UE sends an RRC message to the relay UE, and the RRC message carries the identifier and configuration of the first RLC or the second RLC.
  • the relay UE receives the sidelink SRAPPDU sent by the remote UE, obtains the RLC entity corresponding to the SRAPPDU, and sets the reason for the relay UE to establish an RRC connection with the base station in the RLC entity. In this way, the relay UE can reasonably set the reason for establishing the connection or restoring the connection to avoid the failure of MP addition.
  • FIG9 is a flow chart of another method for establishing a connection provided by the present disclosure. The method is applied to a communication process between a remote UE and a relay UE. As shown in FIG9 , the method for establishing a connection may include the following steps:
  • step S901 the remote UE sends a sidelink SRAP PDU to the relay UE, and indicates the reason why the relay UE establishes an RRC connection with the base station based on the RLC entity corresponding to the sidelink SRAPPDU.
  • the remote UE When the remote UE needs to perform data forwarding, it sends a sidelink SRAP PDU to the relay UE, and indicates the reason for the relay UE to establish an RRC connection with the base station based on the RLC entity corresponding to the sidelink SRAPPDU.
  • the RLC entity described in the examples of the present disclosure is used for MP transmission.
  • Step S902 The remote UE sends a correspondence between a first RLC identifier and a first cause to the relay UE.
  • the correspondence between the first RLC identifier and the first cause is sent by the base station to the remote UE; it can also be sent to the remote UE via a system message, or it can be sent to the remote UE via an RRC reconfiguration message.
  • This disclosure embodiment is not limited.
  • the order of sending the sidelink SRAP PDU there is no limitation on the order of sending the sidelink SRAP PDU, the correspondence between the first RLC identifier and the first reason sent by the remote UE to the relay UE.
  • Step S903 The relay UE receives the sidelink SRAPPDU sent by the remote UE.
  • the relay UE receives the direct connection sidelink SR APPDU sent by the remote UE, so that the relay UE in an idle state or an inactive state triggers a connection recovery process or a connection establishment process.
  • Step S904 The relay UE obtains the correspondence between the first RLC identifier and the first cause.
  • the relay UE receives a correspondence between a first RLC identifier and a first cause sent by a remote UE.
  • the relay UE may also obtain the correspondence between the first RLC and the first cause in the following manners, for example: obtaining the correspondence between the first RLC identifier and the first cause configured by the network device; or obtaining the correspondence between the first RLC identifier and the first cause according to standard provisions.
  • the embodiments of the present disclosure are not limited.
  • Step S905 The RLC entity is a first RLC entity, and the relay UE sets the first cause as a cause for establishing an RRC connection between the relay UE and the base station.
  • the relay UE After the relay UE obtains the SRAPPDU based on step 903, it parses and sets the RLC entity corresponding to the SRAPPDU as the first RLC entity, and the relay UE sets the first cause as the cause for the relay UE to establish an RRC connection with the base station.
  • the first reason is any one of the following: emergency call emergency, high priority access highPriorityAccess, user terminated access mt-Access, user initiated signaling mo-Signalling, user initiated data mo-Data, user initiated voice mo-VoiceCall, user initiated video call mo-VideoCall, user initiated short message mo-SMS, priority multimedia service priority access mps-PriorityAccess, dedicated service priority access mcs-PriorityAccess.
  • the remote UE sends a sidelink SRAP PDU to the relay UE, and the RLC entity corresponding to the sidelink SRAPPDU indicates the reason for the relay UE to establish an RRC connection with the base station.
  • the remote UE sends the correspondence between the first RLC identifier and the first reason to the relay UE, and the relay UE receives the sidelink SRAPPDU sent by the remote UE.
  • the relay UE obtains the correspondence between the first RLC identifier and the first reason.
  • the relay UE sets the first reason as the reason for the relay UE to establish an RRC connection with the base station. In this way, the relay UE can reasonably set the reason for establishing the connection or the reason for restoring the connection to avoid the failure of MP addition.
  • FIG10 is a flow chart of another method for establishing a connection provided by the present disclosure. The method is applied to a communication process between a remote UE and a relay UE. As shown in FIG10 , the method for establishing a connection may include the following steps:
  • Step S1001 The remote UE sends an RRC message to the relay UE, where the RRC message carries an identifier and a configuration of the first RLC or the second RLC.
  • Step S1002 The remote UE sends a correspondence between a first RLC identifier and a first cause to the relay UE.
  • step S1003 the remote UE sends a sidelink SRAP PDU to the relay UE, and indicates the reason for the relay UE to establish an RRC connection with the base station based on the RLC entity corresponding to the sidelink SRAPPDU.
  • the remote UE When the remote UE needs to perform data forwarding, it sends a sidelink SRAP PDU to the relay UE, and indicates the reason for the relay UE to establish an RRC connection with the base station based on the RLC entity corresponding to the sidelink SRAPPDU.
  • the RLC entity described in the examples of the present disclosure is used for MP transmission.
  • the correspondence between the first RLC identifier on the remote UE side and the first cause is sent by the network device.
  • the remote UE sends the RRC message, sidelink SRAP PDU, the correspondence between the first RLC identifier and the first reason to the relay UE.
  • the remote UE may first send an RRC message, then send a sidelink SRAP PDU, and finally send the correspondence between the first RLC identifier and the first cause; or, first send the correspondence between the first RLC identifier and the first cause, then send an RRC message, and finally send the sidelink SRAP PDU; or, simultaneously send an RRC message, a sidelink SRAP PDU, the correspondence between the first RLC identifier and the first cause, or other sending orders, which are not limited in the embodiments of the present disclosure.
  • Step S1004 The relay UE receives the sidelink SRAPPDU sent by the remote UE.
  • the relay UE receives the direct connection sidelink SR APPDU sent by the remote UE, so that the relay UE in an idle state or an inactive state triggers a connection recovery process or a connection establishment process.
  • Step S1005 The relay UE obtains the correspondence between the first RLC identifier and the first cause.
  • the relay UE receives a correspondence between a first RLC identifier and a first cause sent by a remote UE.
  • the relay UE may also obtain the correspondence between the first RLC and the first cause by, for example, obtaining the correspondence between the first RLC identifier configured by the network device and the first cause; or obtaining the correspondence between the first RLC identifier and the first cause according to standard provisions.
  • the embodiments of the present disclosure are not limited.
  • Step S1006 The relay UE obtains the identifier and configuration of the first RLC or the second RLC.
  • the relay UE receives an RRC message sent by a remote UE, where the RRC message carries an identifier and a configuration of the first RLC or the second RLC.
  • the relay UE may also obtain the identification and configuration of the first RLC or the second RLC in the following manners, for example: obtaining the identification and configuration of the first RLC or the second RLC according to standard provisions; or receiving system information sent by a network device, the system information carrying the identification and configuration of the first RLC or the second RLC.
  • the embodiments of the present disclosure are not limited.
  • the relay UE when the first RLC entity or the second RLC entity does not exist, the relay UE establishes the corresponding first RLC entity or the second RLC entity according to the received identification and configuration of the first RLC or the second RLC.
  • the relay UE When the first RLC entity or the second RLC entity exists, it is not necessary to establish the corresponding first RLC entity or the second RLC entity according to the identification and configuration of the first RLC or the second RLC.
  • the relay UE sends the corresponding relationship between the RRC message, the sidelink SRAP PDU, the first RLC identifier and the first reason.
  • the relay UE may first receive the RRC message, then receive the sidelink SRAP PDU, and finally receive the correspondence between the first RLC identifier and the first cause; or, first receive the correspondence between the first RLC identifier and the first cause, then receive the RRC message, and finally receive the sidelink SRAP PDU; or, simultaneously receive the RRC message, the sidelink SRAP PDU, the correspondence between the first RLC identifier and the first cause, or other receiving orders, which are not limited in the embodiments of the present disclosure.
  • Step S1007 the RLC entity is a first RLC entity, and the relay UE sets the first cause as a cause for establishing an RRC connection between the relay UE and the base station.
  • the relay UE After the relay UE obtains the SRAPPDU based on step 1004, it parses and sets the RLC entity corresponding to the SRAPPDU as the first RLC entity, and the relay UE sets the first reason as the reason for the relay UE to establish an RRC connection with the base station.
  • the first reason is any one of the following: emergency call emergency, high priority access highPriorityAccess, user terminated access mt-Access, user initiated signaling mo-Signalling, user initiated data mo-Data, user initiated voice mo-VoiceCall, user initiated video call mo-VideoCall, user initiated short message mo-SMS, priority multimedia service priority access mps-PriorityAccess, dedicated service priority access mcs-PriorityAccess.
  • the remote UE sends a sidelink SRAP PDU to the relay UE, and the RLC entity corresponding to the sidelink SRAPPDU indicates the reason for the relay UE to establish an RRC connection with the base station.
  • the remote UE sends the correspondence between the first RLC identifier and the first reason to the relay UE, and the relay UE receives the sidelink SRAPPDU sent by the remote UE.
  • the relay UE obtains the correspondence between the first RLC identifier and the first reason.
  • the relay UE sets the first reason as the reason for the relay UE to establish an RRC connection with the base station. In this way, the relay UE can reasonably set the reason for establishing the connection or the reason for restoring the connection to avoid the failure of MP addition.
  • FIG11 is a flow chart of another method for establishing a connection provided by the present disclosure. The method is applied to a communication process between a remote UE and a relay UE. As shown in FIG11, the method for establishing a connection may include the following steps:
  • Step S1101 the remote UE sends a sidelink SRAP PDU to the relay UE, and indicates the reason for the relay UE to establish an RRC connection with the base station based on the RLC entity corresponding to the sidelink SRAPPDU.
  • the remote UE When the remote UE needs to perform data forwarding, it sends a sidelink SRAP PDU to the relay UE, and indicates the reason for the relay UE to establish an RRC connection with the base station based on the RLC entity corresponding to the sidelink SRAPPDU.
  • the RLC entity described in the examples of the present disclosure is used for MP transmission.
  • the method of sending indication information is not limited to sending a sidelink SRAP PDU message, but may also be sent by sending a direct sidelink RRC message, which is not limited in the specific embodiments of the present disclosure.
  • Step S1102 The relay UE receives the sidelink SR APP DU sent by the remote UE.
  • the relay UE receives the direct connection sidelink SR APPDU sent by the remote UE, so that the relay UE in an idle state or an inactive state triggers a connection recovery process or a connection establishment process.
  • Step S1103 The RLC entity is a second RLC entity, and the second reason is set as the reason for the relay UE to establish an RRC connection with the base station.
  • the relay UE After the relay UE obtains the SRAPPDU based on step 1102, it parses and sets the RLC entity corresponding to the SRAPPDU as the second RLC entity, and the relay UE sets the second reason as the reason for the relay UE to establish an RRC connection with the base station.
  • the second reason is any one of the following: mt-Access terminated by user, mo-Signalling initiated by user, mo-Data initiated by user, mo-VoiceCall initiated by user, mo-VideoCall initiated by user, mo-SMS initiated by user.
  • the second reason cannot be set to emergency call (emergency), high priority access (highPriorityAccess), priority multimedia service access (mps-PriorityAccess), and mcs-PriorityAccess.
  • the remote UE sends a sidelink SRAP PDU to the relay UE, and the RLC entity corresponding to the sidelink SRAPPDU indicates the reason for the relay UE to establish an RRC connection with the base station.
  • the relay UE receives the sidelink SRAPPDU sent by the remote UE, and after setting the RLC entity as the second RLC entity, the relay UE sets the second reason as the reason for the relay UE to establish an RRC connection with the base station. This allows the relay UE to reasonably set the reason for establishing a connection or restoring a connection, avoiding MP addition failure.
  • Figure 12 is a flow chart of a method for establishing a connection provided by an embodiment of the present disclosure, and the method is executed by a network device. As shown in Figure 12, the method may include but is not limited to the following steps:
  • Step S1201 The network device sends indication information to the remote terminal device UE to indicate the reason why the relay UE establishes a connection with the base station.
  • the network device When the remote UE has a connection requirement, the network device sends an indication message to the remote UE, indicating the reason why the relay UE establishes a connection with the base station, triggering the relay UE's connection recovery process or the connection establishment process, so that the relay UE completes the setting of the connection reason according to the received indication message.
  • the network device When the remote UE has a connection requirement, the network device sends an indication message to the remote terminal device UE, and the remote UE sends the indication message to the relay UE.
  • the relay UE sets the reason for establishing a connection between the relay UE and the base station according to the indication message of the network device, so that the relay UE can reasonably set the reason for establishing a connection or restoring a connection to avoid MP addition failure.
  • FIG. 13 is a flow chart of another method for establishing a connection provided by the embodiment of the present disclosure. The method is executed by a network device. As shown in FIG. 13 , the method for establishing a connection may include the following steps:
  • Step S1301 The network device sends the indication information set when adding an indirect path to the remote UE.
  • the network device sends any one of the following information to the remote UE: a first radio link control layer RLC identifier and configuration, a second RLC identifier and configuration, and a correspondence between the first RLC identifier and the first cause.
  • the network device When the remote UE has a connection requirement, the network device sends the indication information set when adding an indirect path to the remote UE, and the remote UE sends the indication information to the relay UE.
  • the relay UE sets the reason for establishing a connection between the relay UE and the base station according to the indication information of the network device, so that the relay UE can reasonably set the reason for establishing the connection or the reason for restoring the connection to avoid MP addition failure.
  • the present disclosure also provides a packet loss processing device. Since the device for establishing a connection provided in the embodiments of the present disclosure corresponds to the method for establishing a connection provided in the embodiments of Figures 2 to 13 above, the implementation method of the method for establishing a connection is also applicable to the device for establishing a connection provided in the embodiments of the present disclosure, and will not be described in detail in the embodiments of the present disclosure.
  • FIG14 is a schematic diagram of the structure of a device for establishing a connection provided by an embodiment of the present disclosure.
  • the device is arranged in a relay terminal device UE, as shown in FIG14 , and the device includes:
  • the receiving module 141 is used to receive the indication information sent by the remote UE;
  • the processing module 142 is used to set a reason according to the indication information, where the reason includes at least one of the following: a reason why the relay UE establishes a connection with the base station, and a reason why the relay UE restores a connection with the base station.
  • the relay UE receives the indication information sent by the remote UE and sets the reason for the relay UE to establish a connection with the base station according to the indication information, so that the relay UE can reasonably set the reason for establishing the connection or the reason for restoring the connection to avoid MP addition failure.
  • the reasons include:
  • the reason for the relay UE to establish a radio resource control (RRC) connection with the base station is the reason for establishing a connection between the relay UE and the base station;
  • the reason for the relay UE to establish the RRC connection with the base station is the reason for the relay UE to restore the connection with the base station.
  • the receiving module 141 is further configured to receive a direct sidelink RRC message sent by the remote UE, wherein the sidelink RRC message carries the indication information;
  • the processing module 142 is further configured to set the reason for the relay UE to establish an RRC connection with the base station to the reason indicated by the indication information.
  • the receiving module 141 is further configured to receive a sidelink relay adaptation protocol SRAP data unit PDU sent by the remote UE;
  • the processing module 142 is also used to set the reason for the relay UE to establish an RRC connection with the base station according to the radio link control layer RLC entity corresponding to the SRAP PDU.
  • the processing module 142 is further configured to, when the RLC entity is a first RLC entity, set the first cause as a cause for the relay UE to establish an RRC connection with the base station.
  • the first reason is any one of the following:
  • Emergency call emergency high priority access highPriorityAccess
  • user terminated access mt-Access user initiated signaling mo-Signalling
  • user initiated data mo-Data user initiated voice mo-VoiceCall
  • user initiated video call mo-VideoCall user initiated short message mo-SMS
  • priority multimedia service priority access mps-PriorityAccess dedicated service priority access mcs-PriorityAccess.
  • the apparatus further includes:
  • the first acquisition module 143 is used to acquire the correspondence between the first RLC identifier and the first cause.
  • the first acquisition module 143 is further configured to:
  • the processing module 142 is further configured to, when the RLC entity is a second RLC entity, set the second cause as a cause for the relay UE to establish an RRC connection with the base station.
  • the second reason is any one of the following:
  • User-terminated access mt-Access User-initiated signaling mo-Signalling, user-initiated data mo-Data, user-initiated voice mo-VoiceCall, user-initiated video call mo-VideoCall, user-initiated short message mo-SMS.
  • the apparatus further includes:
  • the second acquisition module 144 is configured to acquire the identifier and configuration of the first RLC or the second RLC.
  • the second acquisition module is further configured to:
  • system information sent by a network device, where the system information carries an identifier and a configuration of the first RLC or the second RLC.
  • RRC message sent by a remote UE, where the RRC message carries an identifier and a configuration of the first RLC or the second RLC.
  • the apparatus further includes:
  • the establishing module 145 is used to establish the corresponding first RLC entity or second RLC entity according to the identification and configuration of the first RLC or the second RLC.
  • FIG16 is a schematic diagram of the structure of another apparatus for establishing a connection provided by an embodiment of the present disclosure.
  • An embodiment of the present disclosure provides an apparatus for establishing a connection, the apparatus being arranged in a remote terminal device UE, the apparatus comprising:
  • the sending module 161 is used to send indication information to the relay UE to indicate the reason why the relay UE establishes a connection with the base station.
  • the sending module 161 is also used to send a direct sidelink radio resource control RRC message to the relay UE, and the sidelink RRC message carries the indication information.
  • an indication message is sent to the relay UE, and the relay UE sets the reason for establishing a connection between the relay UE and the base station according to the indication message sent by the remote UE, so that the relay UE can reasonably set the reason for establishing the connection or the reason for restoring the connection to avoid MP addition failure.
  • the device further includes:
  • the processing module 162 is configured to set indication information, wherein the setting indication information includes at least one of the following:
  • the indication information is set according to the service type that triggers the connection establishment; and the indication information is set by receiving the indication information sent by the network device.
  • the sending module 161 is also used to send a sidelink relay adaptation protocol SRAP data unit PDU to the relay UE, and indicate the reason for the relay UE to establish an RRC connection with the base station based on the radio link control layer RLC entity corresponding to the sidelink SRAP PDU.
  • the device further includes:
  • the sending module 161 is further configured to send an RRC message to the relay UE, where the RRC message carries an identifier and a configuration of the first RLC or the second RLC.
  • the device further includes:
  • the sending module 161 is further configured to send the correspondence between the first RLC identifier and the first cause to the relay UE.
  • the device further includes:
  • the receiving module 163 is used to receive any of the following information sent by the network device:
  • the first reason is any one of the following:
  • Emergency call emergency high priority access highPriorityAccess
  • user terminated access mt-Access user initiated signaling mo-Signalling
  • user initiated data mo-Data user initiated voice mo-VoiceCall
  • user initiated video call mo-VideoCall user initiated short message mo-SMS
  • priority multimedia service priority access mps-PriorityAccess dedicated service priority access mcs-PriorityAccess.
  • FIG. 17 is a schematic diagram of the structure of another apparatus for establishing a connection provided by an embodiment of the present disclosure.
  • An embodiment of the present disclosure provides an apparatus for establishing a connection, the apparatus being executed by a network device, and the apparatus comprising:
  • the sending module 171 is used to send indication information to the remote terminal device UE to indicate the reason why the relay UE establishes a connection with the base station.
  • the network device When the remote UE has a connection requirement, the network device sends an indication message to the remote terminal device UE, and the remote UE sends the indication message to the relay UE.
  • the relay UE sets the reason for establishing a connection between the relay UE and the base station according to the indication message of the network device, so that the relay UE can reasonably set the reason for establishing a connection or restoring a connection to avoid MP addition failure.
  • the sending module 171 is further configured to send the indication information set when adding an indirect path to the remote UE.
  • the device further includes:
  • the sending module 171 is further configured to send any of the following information to the remote UE:
  • the communication device 1800 can be a network device, or a terminal device, or a chip, a chip system, or a processor that supports the network device to implement the above method, or a chip, a chip system, or a processor that supports the terminal device to implement the above method.
  • the device can be used to implement the method described in the above method embodiment, and the details can be referred to the description in the above method embodiment.
  • the communication device 1800 may include one or more processors 1801.
  • the processor 1801 may be a general-purpose processor or a dedicated processor, etc.
  • it may be a baseband processor or a central processing unit.
  • the baseband processor may be used to process the communication protocol and communication data
  • the central processing unit may be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute a computer program, and process the data of the computer program.
  • the communication device 1800 may further include one or more memories 1802, on which a computer program 1804 may be stored, and the processor 1801 executes the computer program 1804 so that the communication device 1800 performs the method described in the above method embodiment.
  • data may also be stored in the memory 1802.
  • the communication device 1800 and the memory 1802 may be provided separately or integrated together.
  • the communication device 1800 may further include a transceiver 1805 and an antenna 1806.
  • the transceiver 1805 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, etc., and is used to implement a transceiver function.
  • the transceiver 1805 may include a receiver and a transmitter, the receiver may be referred to as a receiver or a receiving circuit, etc., and is used to implement a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., and is used to implement a transmitting function.
  • the communication device 1800 may further include one or more interface circuits 1807.
  • the interface circuit 1807 is used to receive code instructions and transmit them to the processor 1801.
  • the processor 1801 runs the code instructions to enable the communication device 1800 to execute the method described in the above method embodiment.
  • the communication device 1800 is a relay UE: the transceiver 1805 is used to execute steps such as step 201 in FIG. 2 .
  • the communication device 1800 is a remote UE: the transceiver 1805 is used to perform steps 401 and other steps in FIG. 4 ;
  • the communication device 1800 is a network device: the transceiver 1805 is used to execute steps such as step 1201 in Figure 12.
  • the processor 1801 may include a transceiver for implementing the receiving and sending functions.
  • the transceiver may be a transceiver circuit, an interface, or an interface circuit.
  • the transceiver circuit, interface, or interface circuit for implementing the receiving and sending functions may be separate or integrated.
  • the above-mentioned transceiver circuit, interface, or interface circuit may be used for reading and writing code/data, or the above-mentioned transceiver circuit, interface, or interface circuit may be used for transmitting or delivering signals.
  • the processor 1801 may store a computer program 1803, which runs on the processor 1801 and enables the communication device 1800 to perform the method described in the above method embodiment.
  • the computer program 1803 may be fixed in the processor 1801, in which case the processor 1801 may be implemented by hardware.
  • the communication device 1800 may include a circuit that can implement the functions of sending or receiving or communicating in the aforementioned method embodiments.
  • the processor and transceiver described in the present disclosure may be implemented in an integrated circuit (IC), an analog IC, a radio frequency integrated circuit RFIC, a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc.
  • the processor and transceiver may also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
  • CMOS complementary metal oxide semiconductor
  • NMOS N-type metal oxide semiconductor
  • PMOS P-type metal oxide semiconductor
  • BJT bipolar junction transistor
  • BiCMOS bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium arsenide
  • the communication device described in the above embodiments may be a network device or a terminal device, but the scope of the communication device described in the present disclosure is not limited thereto, and the structure of the communication device may not be limited by FIG. 18.
  • the communication device may be an independent device or may be part of a larger device.
  • the communication device may be:
  • the IC set may also include a storage component for storing data and computer programs;
  • ASIC such as modem
  • the communication device can be a chip or a chip system
  • the communication device can be a chip or a chip system
  • the schematic diagram of the chip structure shown in Figure 19 includes a processor 1901 and an interface 1903.
  • the number of processors 1901 can be one or more, and the number of interfaces 1903 can be multiple.
  • Interface 1903 is used to execute step 201 in FIG. 2 , step 402 in FIG. 4 , etc.
  • Interface 1903 is used to execute step 301 in FIG. 3 , step 401 in FIG. 4 , etc.
  • the chip 1900 further includes a memory 1902, and the memory 1902 is used to store necessary computer programs and data.
  • the present disclosure also provides a readable storage medium having instructions stored thereon, which implement the functions of any of the above method embodiments when executed by a computer.
  • the present disclosure also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.
  • the computer program product includes one or more computer programs.
  • the computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer program can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer program can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center.
  • the computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated.
  • the available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (DVD)), or a semiconductor medium (e.g., a solid state disk (SSD)), etc.
  • a magnetic medium e.g., a floppy disk, a hard disk, a magnetic tape
  • an optical medium e.g., a high-density digital video disc (DVD)
  • DVD high-density digital video disc
  • SSD solid state disk
  • At least one in the present disclosure may also be described as one or more, and a plurality may be two, three, four or more, which is not limited in the present disclosure.
  • the technical features in the technical feature are distinguished by “first”, “second”, “third”, “A”, “B”, “C” and “D”, etc., and there is no order of precedence or size between the technical features described by the "first”, “second”, “third”, “A”, “B”, “C” and “D”.
  • plural refers to two or more than two, and other quantifiers are similar thereto.
  • “And/or” describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and/or B may represent: A exists alone, A and B exist at the same time, and B exists alone.
  • the character “/” generally indicates that the associated objects before and after are in an “or” relationship.
  • the singular forms “a”, “the” and “the” are also intended to include plural forms, unless the context clearly indicates other meanings.
  • the corresponding relationships shown in the tables in the present disclosure can be configured or predefined.
  • the values of the information in each table are only examples and can be configured as other values, which are not limited by the present disclosure.
  • the corresponding relationships shown in some rows may not be configured.
  • appropriate deformation adjustments can be made based on the above table, such as splitting, merging, etc.
  • the names of the parameters shown in the titles of the above tables can also use other names that can be understood by the communication device, and the values or representations of the parameters can also be other values or representations that can be understood by the communication device.
  • other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables.

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Abstract

The present disclosure provides a connection establishment method and apparatus, which can be applied to the technical field of communications. The method comprises: a relay receiving indication information sent by a remote UE; and setting a cause according to the indication information, the cause comprising at least one of the following: a cause for the relay UE to establish a connection with a base station and a cause for the relay UE to resume the connection with the base station. A relay UE receives indication information sent by a remote UE, and, according to the indication information, sets a cause for the relay UE to establish a connection with a base station, the cause comprising at least one of the following: the cause for the relay UE to establish a connection with the base station and a cause for the relay UE to resume the connection with the base station, so that the relay UE can reasonably set the cause for connection establishment or the cause for connection resumption, thereby avoiding an MP adding failure.

Description

一种连接建立的方法及装置A method and device for establishing a connection 技术领域Technical Field
本公开涉及通信技术领域，尤其涉及一种连接建立的方法及装置。The present disclosure relates to the field of communication technology, and in particular to a method and device for establishing a connection.
背景技术Background technique
相关技术中，为了支持用户设备(user equipment，UE)与UE之间的直接通信，引入了sidelink通信方式，一个UE可以不直接与基站连接而通过另外一个UE的中继实现与基站的通信，其中，与基站没有连接的UE称为远端UE，提供中继功能的UE称为中继UE，远端UE与中继UE之间通过sidelink单播通信，处于空闲态或非激活态的中继UE与基站之间没有无线资源控制(Radio Resource Control，RRC)连接，处于连接态的中继UE与基站之间存在RRC连接。In the related art, in order to support direct communication between user equipment (UE) and UE, a sidelink communication method is introduced. A UE may communicate with the base station through the relay of another UE instead of directly connecting to the base station. Among them, the UE that is not connected to the base station is called a remote UE, and the UE that provides relay function is called a relay UE. The remote UE and the relay UE communicate through sidelink unicast. There is no Radio Resource Control (RRC) connection between the relay UE in idle or inactive state and the base station, and there is an RRC connection between the relay UE in connected state and the base station.
处于空闲态或非激活态的中继UE可以通过接建立过程建立RRC连接，从而进入连接态，中继UE需要向基站发送RRC建立请求消息，需携带建立连接的原因，因此如何设置建立原因或者恢复原因是目前亟需解决的问题。A relay UE in an idle or inactive state can establish an RRC connection through the connection establishment process, thereby entering a connected state. The relay UE needs to send an RRC establishment request message to the base station, which needs to carry the reason for establishing the connection. Therefore, how to set the establishment reason or recovery reason is a problem that needs to be solved urgently.
发明内容Summary of the invention
第一方面，本公开实施例提供一种连接建立的方法，所述方法由中继终端设备UE执行，所述方法包括：In a first aspect, an embodiment of the present disclosure provides a method for establishing a connection, the method being executed by a relay terminal device UE, the method comprising:
接收远端UE发送的指示信息；Receiving indication information sent by a remote UE;
根据所述指示信息设置原因，所述原因包括以下中的至少一项：所述中继UE与基站建立连接的原因、所述中继UE与基站恢复连接的原因。A reason is set according to the indication information, where the reason includes at least one of the following: a reason why the relay UE establishes a connection with the base station, and a reason why the relay UE resumes a connection with the base station.
在一种实现方式中，所述原因包括：In one implementation, the reasons include:
响应于所述中继UE处于空闲状态，所述中继UE与基站建立无线资源控制RRC连接的原因为所述中继UE与所述基站连接建立的原因；In response to the relay UE being in an idle state, the reason for the relay UE to establish a radio resource control (RRC) connection with the base station is the reason for establishing a connection between the relay UE and the base station;
响应于所述中继UE处于非激活状态，所述中继UE与基站建立RRC连接的原因为所述中继UE与所述基站恢复连接的原因。In response to the relay UE being in an inactive state, the reason for the relay UE to establish the RRC connection with the base station is the reason for the relay UE to restore the connection with the base station.
在一种实现方式中，In one implementation,
所述接收远端UE发送的指示信息包括：接收所述远端UE发送的直连sidelink RRC消息，所述sidelink RRC消息中携带所述指示信息；The receiving of the indication information sent by the remote UE comprises: receiving a direct sidelink RRC message sent by the remote UE, wherein the sidelink RRC message carries the indication information;
所述根据所述指示信息设置原因包括：将所述中继UE与所述基站建立RRC连接的原因设置为所述指示信息指示的原因。The setting of the cause according to the indication information includes: setting the cause for the relay UE to establish an RRC connection with the base station as the cause indicated by the indication information.
在一种实现方式中，In one implementation,
所述接收远端UE发送的指示信息包括：接收所述远端UE发送的sidelink中继适配协议SRAP数据单元PDU；The receiving the indication information sent by the remote UE includes: receiving a sidelink relay adaptation protocol SRAP data unit PDU sent by the remote UE;
所述根据所述指示信息设置原因包括：根据所述SRAPPDU对应的无线链路控制层RLC实体设置所述中继UE与基站建立RRC连接的原因。The setting of the cause according to the indication information includes: setting the cause of establishing the RRC connection between the relay UE and the base station according to a radio link control layer RLC entity corresponding to the SRAPPDU.
在一种实现方式中，所述根据SRAPPDU对应的RLC实体设置所述中继UE与基站建立RRC连接的原因包括：In one implementation, the reason for setting, according to the RLC entity corresponding to the SRAPPDU, the relay UE to establish an RRC connection with the base station includes:
所述RLC实体为第一RLC实体，将第一原因设置为所述中继UE与基站建立RRC连接的原因。The RLC entity is a first RLC entity, and the first cause is set as a cause for the relay UE to establish an RRC connection with a base station.
在一种实现方式中，所述第一原因为以下任一种：In one implementation, the first reason is any one of the following:
紧急呼叫emergency、高优先级接入highPriorityAccess、用户终结的接入mt-Access、用户发起的信令mo-Signalling、用户发起的数据mo-Data、用户发起的语音mo-VoiceCall、用户发起的视频电话mo-VideoCall、用户发起的短消息mo-SMS、具有优先级的多媒体服务优先接入mps-PriorityAccess、专用服务优先接入mcs-PriorityAccess。Emergency call emergency, high priority access highPriorityAccess, user terminated access mt-Access, user initiated signaling mo-Signalling, user initiated data mo-Data, user initiated voice mo-VoiceCall, user initiated video call mo-VideoCall, user initiated short message mo-SMS, priority multimedia service priority access mps-PriorityAccess, dedicated service priority access mcs-PriorityAccess.
在一种实现方式中，所述方法还包括：In one implementation, the method further includes:
获取所述第一RLC标识与所述第一原因的对应关系。Obtain a correspondence between the first RLC identifier and the first cause.
在一种实现方式中，所述获取所述第一RLC与所述第一原因的对应关系包括：In an implementation manner, acquiring the correspondence between the first RLC and the first cause includes:
获取所述网络设备配置的所述第一RLC标识与所述第一原因的对应关系；Acquire a correspondence between the first RLC identifier configured by the network device and the first cause;
或者接收所述远端UE发送的所述第一RLC标识与所述第一原因的对应关系；or receiving a correspondence between the first RLC identifier and the first cause sent by the remote UE;
或者根据标准规定获取所述第一RLC标识与所述第一原因的对应关系。Or obtain the correspondence between the first RLC identifier and the first cause according to standard regulations.
在一种实现方式中，所述根据SRAPPDU对应的RLC实体设置所述中继UE与基站建立RRC连接的原因包括：In one implementation, the reason for setting, according to the RLC entity corresponding to the SRAPPDU, the relay UE to establish an RRC connection with the base station includes:
所述RLC实体为第二RLC实体，将第二原因设置为所述中继UE与基站建立RRC连接的原因。The RLC entity is a second RLC entity, and the second reason is set as a reason for the relay UE to establish an RRC connection with the base station.
在一种实现方式中，所述第二原因为以下任一种：In one implementation, the second reason is any one of the following:
用户终结的接入mt-Access、用户发起的信令mo-Signalling、用户发起的数据mo-Data、用户发起的语音mo-VoiceCall、用户发起的视频电话mo-VideoCall、用户发起的短消息mo-SMS。User-terminated access mt-Access, user-initiated signaling mo-Signalling, user-initiated data mo-Data, user-initiated voice mo-VoiceCall, user-initiated video call mo-VideoCall, user-initiated short message mo-SMS.
在一种实现方式中，所述方法还包括：In one implementation, the method further includes:
获取第一RLC或第二RLC的标识以及配置。Obtain an identifier and a configuration of the first RLC or the second RLC.
在一种实现方式中，所述获取第一RLC或第二RLC的标识以及配置包括：In one implementation, the acquiring the identifier and configuration of the first RLC or the second RLC includes:
根据标准规定获取第一RLC或第二RLC的标识以及配置；Obtaining an identification and configuration of the first RLC or the second RLC according to standard provisions;
或者接收网络设备发送的***信息，所述***信息携带所述第一RLC或第二RLC的标识以及配置。Or receive system information sent by a network device, where the system information carries an identifier and a configuration of the first RLC or the second RLC.
或者接收远端UE发送的RRC消息，所述RRC消息携带所述第一RLC或第二RLC的标识以及配置。Or receive an RRC message sent by a remote UE, where the RRC message carries an identifier and a configuration of the first RLC or the second RLC.
在一种实现方式中，所述方法还包括：In one implementation, the method further includes:
根据所述第一RLC或第二RLC的标识以及配置建立对应的第一RLC实体或第二RLC实体。A corresponding first RLC entity or second RLC entity is established according to the identifier and configuration of the first RLC or the second RLC.
第二方面，本公开实施例提供一种连接建立的方法，所述方法由远端终端设备UE执行，所述方法包括：In a second aspect, an embodiment of the present disclosure provides a method for establishing a connection, the method being executed by a remote terminal device UE, the method comprising:
向中继UE发送指示信息，以指示所述中继UE与基站建立连接的原因。Send indication information to the relay UE to indicate the reason why the relay UE establishes a connection with the base station.
在一种实现方式中，所述向中继UE发送指示信息包括：In one implementation, the sending indication information to the relay UE includes:
向所述中继UE发送直连sidelink无线资源控制RRC消息，所述sidelink RRC消息中携带 所述指示信息。Send a direct sidelink radio resource control RRC message to the relay UE, wherein the sidelink RRC message carries the indication information.
在一种实现方式中，所述方法还包括：In one implementation, the method further includes:
设置指示信息，其中，所述设置指示信息包括以下中的至少一项：Setting instruction information, wherein the setting instruction information includes at least one of the following:
根据触发连接建立的业务类型设置所述指示信息；通过接收网络设备发送的所述指示信息设置所述指示信息。The indication information is set according to the service type that triggers the connection establishment; and the indication information is set by receiving the indication information sent by the network device.
在一种实现方式中，所述向中继UE发送指示信息包括：In one implementation, the sending indication information to the relay UE includes:
向所述中继UE发送sidelink中继适配协议SRAP数据单元PDU，基于所述sidelink SRAPPDU对应的无线链路控制层RLC实体进行所述中继UE与基站建立RRC连接的原因的指示。A sidelink relay adaptation protocol SRAP data unit PDU is sent to the relay UE, and based on the radio link control layer RLC entity corresponding to the sidelink SRAPPDU, the relay UE is indicated the reason for establishing an RRC connection with the base station.
在一种实现方式中，所述方法还包括：In one implementation, the method further includes:
向所述中继UE发送RRC消息，所述RRC消息携带所述第一RLC或第二RLC的标识以及配置。An RRC message is sent to the relay UE, where the RRC message carries an identifier and a configuration of the first RLC or the second RLC.
在一种实现方式中，所述方法还包括：In one implementation, the method further includes:
向所述中继UE发送第一RLC标识与第一原因的对应关系。Sending a correspondence between the first RLC identifier and the first cause to the relay UE.
在一种实现方式中，所述方法还包括：In one implementation, the method further includes:
接收网络设备发送的以下任一信息：Receive any of the following information sent by network devices:
第一RLC标识和配置、第二RLC标识和配置、第一RLC标识与第一原因的对应关系。The correspondence between the first RLC identifier and configuration, the second RLC identifier and configuration, the first RLC identifier and the first cause.
在一种实现方式中，所述第一原因为以下任一种：In one implementation, the first reason is any one of the following:
紧急呼叫emergency、高优先级接入highPriorityAccess、用户终结的接入mt-Access、用户发起的信令mo-Signalling、用户发起的数据mo-Data、用户发起的语音mo-VoiceCall、用户发起的视频电话mo-VideoCall、用户发起的短消息mo-SMS、具有优先级的多媒体服务优先接入mps-PriorityAccess、专用服务优先接入mcs-PriorityAccess。Emergency call emergency, high priority access highPriorityAccess, user terminated access mt-Access, user initiated signaling mo-Signalling, user initiated data mo-Data, user initiated voice mo-VoiceCall, user initiated video call mo-VideoCall, user initiated short message mo-SMS, priority multimedia service priority access mps-PriorityAccess, dedicated service priority access mcs-PriorityAccess.
第三方面，本公开实施例提供一种连接建立的方法，所述方法由网络设备执行，所述方法包括：In a third aspect, an embodiment of the present disclosure provides a method for establishing a connection, the method being performed by a network device, the method comprising:
向远端终端设备UE发送指示信息，以指示所述中继UE与基站建立连接的原因。Send indication information to the remote terminal device UE to indicate the reason why the relay UE establishes a connection with the base station.
在一种实现方式中，所述向远端UE发送指示信息包括：In one implementation, the sending indication information to the remote UE includes:
向所述远端UE发送在添加间接路径时确定的所述指示信息。The indication information determined when adding the indirect path is sent to the remote UE.
在一种实现方式中，所述方法还包括：In one implementation, the method further includes:
向所述远端UE发送以下任一信息：Send any of the following information to the remote UE:
第一无线链路控制层RLC标识和配置、第二RLC标识和配置、第一RLC标识与第一原因的对应关系。The correspondence between the first radio link control layer RLC identifier and configuration, the second RLC identifier and configuration, the first RLC identifier and the first cause.
第四方面，本公开实施例提供一种连接建立的装置，其特征在于，所述装置设置于中继终端设备UE，所述装置包括：In a fourth aspect, an embodiment of the present disclosure provides a device for establishing a connection, characterized in that the device is arranged in a relay terminal device UE, and the device includes:
接收模块，用于接收远端UE发送的指示信息；A receiving module, used for receiving indication information sent by a remote UE;
处理模块，用于根据所述指示信息设置原因，所述原因包括以下中的至少一项：所述中继UE与基站建立连接的原因、所述中继UE与基站恢复连接的原因。A processing module is used to set a reason according to the indication information, where the reason includes at least one of the following: a reason why the relay UE establishes a connection with the base station, and a reason why the relay UE restores the connection with the base station.
在一种实现方式中，所述原因包括：In one implementation, the reasons include:
响应于所述中继UE处于空闲状态，所述中继UE与基站建立无线资源控制RRC连接的原因为所述中继UE与所述基站连接建立的原因；In response to the relay UE being in an idle state, the reason for the relay UE to establish a radio resource control (RRC) connection with the base station is the reason for establishing a connection between the relay UE and the base station;
响应于所述中继UE处于非激活状态，所述中继UE与基站建立RRC连接的原因为所述中继UE与所述基站恢复连接的原因。In response to the relay UE being in an inactive state, the reason for the relay UE to establish the RRC connection with the base station is the reason for the relay UE to restore the connection with the base station.
在一种实现方式中，In one implementation,
所述接收模块，还用于接收所述远端UE发送的直连sidelink RRC消息，所述sidelink RRC消息中携带所述指示信息；The receiving module is further used to receive a direct sidelink RRC message sent by the remote UE, wherein the sidelink RRC message carries the indication information;
所述处理模块，还用于将所述中继UE与所述基站建立RRC连接的原因设置为所述指示信息指示的原因。The processing module is further used to set the reason for the relay UE to establish the RRC connection with the base station to the reason indicated by the indication information.
在一种实现方式中，In one implementation,
所述接收模块，还用于接收所述远端UE发送的sidelink中继适配协议SRAP数据单元PDU；The receiving module is further used to receive a sidelink relay adaptation protocol SRAP data unit PDU sent by the remote UE;
所述处理模块，还用于根据所述SRAP PDU对应的无线链路控制层RLC实体设置所述中继UE与基站建立RRC连接的原因。The processing module is also used to set the reason for the relay UE to establish an RRC connection with the base station according to the radio link control layer RLC entity corresponding to the SRAP PDU.
在一种实现方式中，所述处理模块，还用于所述RLC实体为第一RLC实体，将第一原因设置为所述中继UE与基站建立RRC连接的原因。In one implementation, the processing module is further used for the RLC entity being the first RLC entity, setting the first cause as the cause for the relay UE to establish an RRC connection with the base station.
在一种实现方式中，所述第一原因为以下任一种：In one implementation, the first reason is any one of the following:
紧急呼叫emergency、高优先级接入highPriorityAccess、用户终结的接入mt-Access、用户发起的信令mo-Signalling、用户发起的数据mo-Data、用户发起的语音mo-VoiceCall、用户发起的视频电话mo-VideoCall、用户发起的短消息mo-SMS、具有优先级的多媒体服务优先接入mps-PriorityAccess、专用服务优先接入mcs-PriorityAccess。Emergency call emergency, high priority access highPriorityAccess, user terminated access mt-Access, user initiated signaling mo-Signalling, user initiated data mo-Data, user initiated voice mo-VoiceCall, user initiated video call mo-VideoCall, user initiated short message mo-SMS, priority multimedia service priority access mps-PriorityAccess, dedicated service priority access mcs-PriorityAccess.
在一种实现方式中，所述装置还包括：In one implementation, the device further includes:
第一获取模块，用于获取所述第一RLC标识与所述第一原因的对应关系。The first acquisition module is used to acquire the correspondence between the first RLC identifier and the first cause.
在一种实现方式中，所述第一获取模块，还用于：In one implementation, the first acquisition module is further configured to:
获取所述网络设备配置的所述第一RLC标识与所述第一原因的对应关系；Acquire a correspondence between the first RLC identifier configured by the network device and the first cause;
或者接收所述远端UE发送的所述第一RLC标识与所述第一原因的对应关系；or receiving a correspondence between the first RLC identifier and the first cause sent by the remote UE;
或者根据标准规定获取所述第一RLC标识与所述第一原因的对应关系。Or obtain the correspondence between the first RLC identifier and the first cause according to standard regulations.
在一种实现方式中，所述处理模块，还用于所述RLC实体为第二RLC实体，将第二原因设置为所述中继UE与基站建立RRC连接的原因。In one implementation, the processing module is further used for the RLC entity being a second RLC entity, setting the second cause as a cause for the relay UE to establish an RRC connection with the base station.
在一种实现方式中，所述第二原因为以下任一种：In one implementation, the second reason is any one of the following:
用户终结的接入mt-Access、用户发起的信令mo-Signalling、用户发起的数据mo-Data、用户发起的语音mo-VoiceCall、用户发起的视频电话mo-VideoCall、用户发起的短消息mo-SMS。User-terminated access mt-Access, user-initiated signaling mo-Signalling, user-initiated data mo-Data, user-initiated voice mo-VoiceCall, user-initiated video call mo-VideoCall, user-initiated short message mo-SMS.
在一种实现方式中，所述装置还包括：In one implementation, the device further includes:
第二获取模块，用于获取第一RLC或第二RLC的标识以及配置。The second acquisition module is used to acquire the identifier and configuration of the first RLC or the second RLC.
在一种实现方式中，所述第二获取模块，还用于：In one implementation, the second acquisition module is further configured to:
根据标准规定获取第一RLC或第二RLC的标识以及配置；Obtaining an identification and configuration of the first RLC or the second RLC according to standard provisions;
或者接收网络设备发送的***信息，所述***信息携带所述第一RLC或第二RLC的标识以及配置。Or receive system information sent by a network device, where the system information carries an identifier and a configuration of the first RLC or the second RLC.
或者接收远端UE发送的RRC消息，所述RRC消息携带所述第一RLC或第二RLC的标识以及配置。Or receive an RRC message sent by a remote UE, where the RRC message carries an identifier and a configuration of the first RLC or the second RLC.
在一种实现方式中，所述装置还包括：In one implementation, the device further includes:
建立模块，用于根据所述第一RLC或第二RLC的标识以及配置建立对应的第一RLC实体或第二RLC实体。An establishing module is used to establish a corresponding first RLC entity or second RLC entity according to the identifier and configuration of the first RLC or the second RLC.
第五方面，本公开实施例提供一种连接建立的装置，所述装置设置于远终端设备UE，所述装置包括：In a fifth aspect, an embodiment of the present disclosure provides a device for establishing a connection, the device being arranged in a remote terminal device UE, and the device comprising:
发送模块，用于向中继UE发送指示信息，以指示所述中继UE与基站建立连接的原因。The sending module is used to send indication information to the relay UE to indicate the reason why the relay UE establishes a connection with the base station.
在一种实现方式中，所述发送模块，还用于向所述中继UE发送直连sidelink无线资源控制RRC消息，所述sidelink RRC消息中携带所述指示信息。In one implementation, the sending module is also used to send a direct sidelink radio resource control RRC message to the relay UE, and the sidelink RRC message carries the indication information.
在一种实现方式中，所述装置还包括：In one implementation, the device further includes:
处理模块，用于设置指示信息，其中，所述设置指示信息包括以下中的至少一项：The processing module is used to set the indication information, wherein the setting indication information includes at least one of the following:
根据触发连接建立的业务类型设置所述指示信息；通过接收网络设备发送的所述指示信息设置所述指示信息。The indication information is set according to the service type that triggers the connection establishment; and the indication information is set by receiving the indication information sent by the network device.
在一种实现方式中，所述发送模块，还用于向所述中继UE发送sidelink中继适配协议SRAP数据单元PDU，基于所述sidelink SRAP PDU对应的无线链路控制层RLC实体进行所述中继UE与基站建立RRC连接的原因的指示。In one implementation, the sending module is also used to send a sidelink relay adaptation protocol SRAP data unit PDU to the relay UE, and indicate the reason why the relay UE establishes an RRC connection with the base station based on the radio link control layer RLC entity corresponding to the sidelink SRAP PDU.
在一种实现方式中，所述装置还包括：In one implementation, the device further includes:
所述发送模块，还用于向所述中继UE发送RRC消息，所述RRC消息携带所述第一RLC或第二RLC的标识以及配置。The sending module is further used to send an RRC message to the relay UE, where the RRC message carries the identifier and configuration of the first RLC or the second RLC.
在一种实现方式中，所述装置还包括：In one implementation, the device further includes:
所述发送模块，还用于向所述中继UE发送第一RLC标识与第一原因的对应关系。The sending module is further used to send the correspondence between the first RLC identifier and the first cause to the relay UE.
在一种实现方式中，所述装置还包括：In one implementation, the device further includes:
接收模块，用于接收网络设备发送的以下任一信息：The receiving module is used to receive any of the following information sent by the network device:
第一RLC标识和配置、第二RLC标识和配置、第一RLC标识与第一原因的对应关系。The correspondence between the first RLC identifier and configuration, the second RLC identifier and configuration, the first RLC identifier and the first cause.
在一种实现方式中，所述第一原因为以下任一种：In one implementation, the first reason is any one of the following:
紧急呼叫emergency、高优先级接入highPriorityAccess、用户终结的接入mt-Access、用户发起的信令mo-Signalling、用户发起的数据mo-Data、用户发起的语音mo-VoiceCall、用户发起的视频电话mo-VideoCall、用户发起的短消息mo-SMS、具有优先级的多媒体服务优先接入mps-PriorityAccess、专用服务优先接入mcs-PriorityAccess。Emergency call emergency, high priority access highPriorityAccess, user terminated access mt-Access, user initiated signaling mo-Signalling, user initiated data mo-Data, user initiated voice mo-VoiceCall, user initiated video call mo-VideoCall, user initiated short message mo-SMS, priority multimedia service priority access mps-PriorityAccess, dedicated service priority access mcs-PriorityAccess.
第六方面，本公开实施例提供一种连接建立的装置，所述装置由网络设备执行，所述装置包括：In a sixth aspect, an embodiment of the present disclosure provides a device for establishing a connection, the device being executed by a network device, and the device comprising:
发送模块，用于向远端终端设备UE发送指示信息，以指示所述中继UE与基站建立连接 的原因。The sending module is used to send indication information to the remote terminal device UE to indicate the reason why the relay UE establishes a connection with the base station.
在一种实现方式中，所述发送模块，还用于向所述远端UE发送在添加间接路径时确定的所述指示信息。In one implementation, the sending module is further used to send the indication information determined when adding the indirect path to the remote UE.
在一种实现方式中，所述装置还包括：In one implementation, the device further includes:
所述发送模块，还用于向所述远端UE发送以下任一信息：The sending module is further configured to send any of the following information to the remote UE:
第一无线链路控制层RLC标识和配置、第二RLC标识和配置、第一RLC标识与第一原因的对应关系。The correspondence between the first radio link control layer RLC identifier and configuration, the second RLC identifier and configuration, the first RLC identifier and the first cause.
第七方面，本公开实施例提供了一种计算机可读存储介质，用于储存为上述连接建立的装置所用的指令，当所述指令被执行时，使所述连接建立的装置执行上述第一方面、第二方面或第三方面所述的方法。In a seventh aspect, an embodiment of the present disclosure provides a computer-readable storage medium for storing instructions used by the device for establishing the above-mentioned connection. When the instructions are executed, the device for establishing the connection executes the method described in the first aspect, the second aspect or the third aspect.
第六方面，本公开实施例还提供一种包括计算机程序的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第一方面或第二方面所述的方法。In a sixth aspect, an embodiment of the present disclosure further provides a computer program product comprising a computer program, which, when executed on a computer, enables the computer to execute the method described in the first aspect or the second aspect above.
第七方面，本公开实施例提供了一种芯片***，该芯片***包括至少一个处理器和接口，用于支持通信装置实现第一方面或第二方面所涉及的功能，例如，确定或处理上述方法中所涉及的数据和信息中的至少一种。在一种可能的设计中，所述芯片***还包括存储器，所述存储器，用于保存通信装置必要的计算机程序和数据。该芯片***，可以由芯片构成，也可以包括芯片和其他分立器件。In a seventh aspect, an embodiment of the present disclosure provides a chip system, which includes at least one processor and an interface, for supporting a communication device to implement the functions involved in the first aspect or the second aspect, for example, determining or processing at least one of the data and information involved in the above method. In one possible design, the chip system also includes a memory, which is used to store computer programs and data necessary for the communication device. The chip system can be composed of chips, or it can include chips and other discrete devices.
第八方面，本公开实施例还提供了一种计算机程序，当其在计算机上运行时，使得计算机执行上述第一方面或第二方面所述的方法。In an eighth aspect, an embodiment of the present disclosure further provides a computer program, which, when executed on a computer, enables the computer to execute the method described in the first or second aspect above.
本公开实施例提供的一种连接建立的方法及装置，由中继UE在接收到远端UE发送的指示信息，并根据所述指示信息设置原因，所述原因包括以下中的至少一项：所述中继UE与基站建立连接的原因、所述中继UE与基站恢复连接的原因，从而使得中继UE可以合理的设置建立连接的原因或恢复连接的原因，避免MP添加失败。A method and device for establishing a connection provided by an embodiment of the present disclosure, wherein a relay UE receives indication information sent by a remote UE and sets a reason according to the indication information, and the reason includes at least one of the following: the reason why the relay UE establishes a connection with a base station, and the reason why the relay UE restores the connection with the base station, so that the relay UE can reasonably set the reason for establishing a connection or the reason for restoring a connection to avoid MP adding failure.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
为了更清楚地说明本公开实施例或背景技术中的技术方案，下面将对本公开实施例或背景技术中所需要使用的附图进行说明。In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the background technology, the drawings required for use in the embodiments of the present disclosure or the background technology will be described below.
图1为本公开实施例提供的一种通信***的架构示意图；FIG1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure;
图2为本公开实施例提供的一种连接建立的方法的流程示意图；FIG2 is a schematic diagram of a flow chart of a method for establishing a connection provided by an embodiment of the present disclosure;
图3为本公开实施例提供的另一种连接建立的方法的流程示意图；FIG3 is a schematic diagram of a flow chart of another method for establishing a connection provided by an embodiment of the present disclosure;
图4为本公开实施例提供的另一种连接建立的方法的流程示意图；FIG4 is a schematic diagram of a flow chart of another method for establishing a connection provided by an embodiment of the present disclosure;
图5为本公开实施例提供的另一种连接建立的方法的流程示意图；FIG5 is a schematic diagram of a flow chart of another method for establishing a connection provided in an embodiment of the present disclosure;
图6为本公开实施例提供的另一种连接建立的方法的流程示意图；FIG6 is a flow chart of another method for establishing a connection provided by an embodiment of the present disclosure;
图7为本公开实施例提供的另一种连接建立的方法的流程示意图；FIG7 is a schematic diagram of a flow chart of another method for establishing a connection provided in an embodiment of the present disclosure;
图8为本公开实施例提供的另一种连接建立的方法的流程示意图；FIG8 is a schematic diagram of a flow chart of another method for establishing a connection provided by an embodiment of the present disclosure;
图9为本公开实施例提供的另一种连接建立的方法的流程示意图；FIG9 is a schematic flow chart of another method for establishing a connection provided in an embodiment of the present disclosure;
图10为本公开实施例提供的另一种连接建立的方法的流程示意图；FIG10 is a schematic diagram of a flow chart of another method for establishing a connection provided in an embodiment of the present disclosure;
图11为本公开实施例提供的另一种连接建立的方法的流程示意图；FIG11 is a schematic flow chart of another method for establishing a connection provided in an embodiment of the present disclosure;
图12为本公开实施例提供的另一种连接建立的方法的流程示意图；FIG12 is a schematic flow chart of another method for establishing a connection provided in an embodiment of the present disclosure;
图13为本公开实施例提供的另一种连接建立的方法的流程示意图；FIG13 is a schematic diagram of a flow chart of another method for establishing a connection provided in an embodiment of the present disclosure;
图14为本公开实施例提供的一种连接建立的装置的结构示意图；FIG14 is a schematic diagram of the structure of a device for establishing a connection provided by an embodiment of the present disclosure;
图15为本公开实施例提供的另一种连接建立的装置的结构示意图；FIG15 is a schematic diagram of the structure of another device for establishing a connection provided by an embodiment of the present disclosure;
图16为本公开实施例提供的另一种连接建立的装置的结构示意图；FIG16 is a schematic diagram of the structure of another device for establishing a connection provided by an embodiment of the present disclosure;
图17为本公开实施例提供的另一种连接建立的装置的结构示意图；FIG17 is a schematic diagram of the structure of another device for establishing a connection provided by an embodiment of the present disclosure;
图18为本公开实施例提供的一种通信装置的结构示意图；FIG18 is a schematic diagram of the structure of a communication device provided in an embodiment of the present disclosure;
图19是本公开实施例提供的芯片的结构示意图。FIG. 19 is a schematic diagram of the structure of a chip provided in an embodiment of the present disclosure.
具体实施方式Detailed ways
为了更好的理解本公开实施例公开的一种连接建立的方法，下面首先对本公开实施例适用的通信***进行描述。In order to better understand a method for establishing a connection disclosed in an embodiment of the present disclosure, a communication system to which the embodiment of the present disclosure is applicable is first described below.
请参见图1，图1为本公开实施例提供的一种通信***的架构示意图。该通信***可包括但不限于一个网络设备、和一个终端设备，图1所示的设备数量和形态仅用于举例并不构成对本公开实施例的限定，实际应用中可以包括两个或两个以上的网络设备，两个或两个以上的终端设备。图1所示的通信***以包括一个网络设备11、和一个中继终端设备12和一个远端终端设备13为例。Please refer to FIG. 1, which is a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure. The communication system may include, but is not limited to, a network device and a terminal device. The number and form of devices shown in FIG. 1 are only used for example and do not constitute a limitation on the embodiment of the present disclosure. In actual applications, two or more network devices and two or more terminal devices may be included. The communication system shown in FIG. 1 includes, for example, a network device 11, a relay terminal device 12, and a remote terminal device 13.
需要说明的是，本公开实施例的技术方案可以应用于各种通信***。例如：长期演进(long term evolution，LTE)***、第五代(5th generation，5G)移动通信***、5G新空口(new radio，NR)***，或者其他未来的新型移动通信***等。It should be noted that the technical solutions of the embodiments of the present disclosure can be applied to various communication systems, such as long term evolution (LTE) system, fifth generation (5G) mobile communication system, 5G new radio (NR) system, or other future new mobile communication systems.
本公开实施例中的网络设备11是网络侧的一种用于发射或接收信号的实体。例如，网络设备101可以为演进型基站(evolved NodeB，eNB)、传输点(transmission reception point，TRP)、NR***中的下一代基站(next generation NodeB，gNB)、其他未来移动通信***中的基站或无线保真(wireless fidelity，WiFi)***中的接入节点等。本公开的实施例对网络设备所采用的具体技术和具体设备形态不做限定。本公开实施例提供的网络设备可以是由集中单元(central unit，CU)与分布式单元(distributed unit，DU)组成的，其中，CU也可以称为控制单元(control unit)，采用CU-DU的结构可以将网络设备，例如基站的协议层拆分开，部分协议层的功能放在CU集中控制，剩下部分或全部协议层的功能分布在DU中，由CU集中控制DU。The network device 11 in the embodiment of the present disclosure is an entity on the network side for transmitting or receiving signals. For example, the network device 101 may be an evolved NodeB (eNB), a transmission point (TRP), a next generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (WiFi) system. The embodiment of the present disclosure does not limit the specific technology and specific device form adopted by the network device. The network device provided in the embodiment of the present disclosure may be composed of a central unit (CU) and a distributed unit (DU), wherein the CU may also be referred to as a control unit. The CU-DU structure may be used to split the protocol layer of the network device, such as a base station, and the functions of some protocol layers are placed in the CU for centralized control, and the functions of the remaining part or all of the protocol layers are distributed in the DU, and the DU is centrally controlled by the CU.
本公开实施例中的中继终端设备12或远端终端设备13是用户侧的一种用于接收或发射信号的实体，如手机。终端设备也可以称为终端设备(terminal)、用户设备(user equipment，UE)、移动台(mobile station，MS)、移动终端设备(mobile terminal，MT)等。终端设备可以是具备通信功能的汽车、智能汽车、手机(mobile phone)、穿戴式设备、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端设备、无人驾驶(self-driving)中 的无线终端设备、远程手术(remote medical surgery)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备、智慧家庭(smart home)中的无线终端设备等等。本公开的实施例对终端设备所采用的具体技术和具体设备形态不做限定。The relay terminal device 12 or the remote terminal device 13 in the embodiment of the present disclosure is an entity for receiving or transmitting signals on the user side, such as a mobile phone. The terminal device may also be referred to as a terminal device (terminal), a user equipment (UE), a mobile station (MS), a mobile terminal device (MT), etc. The terminal device may be a car with communication function, a smart car, a mobile phone (mobile phone), a wearable device, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in a smart city (smart city), a wireless terminal device in a smart home (smart home), etc. The embodiments of the present disclosure do not limit the specific technology and specific device form adopted by the terminal device.
可以理解的是，本公开实施例描述的通信***是为了更加清楚的说明本公开实施例的技术方案，并不构成对于本公开实施例提供的技术方案的限定，本领域普通技术人员可知，随着***架构的演变和新业务场景的出现，本公开实施例提供的技术方案对于类似的技术问题，同样适用。It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure. A person skilled in the art can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.
相关技术中，为了支持UE与UE之间的直接通信，引入了sidelink通信方式，一个UE可以不直接与基站连接而通过另外一个UE的中继实现与基站的通信，其中，与基站没有连接的UE称为远端UE，提供中继功能的UE称为中继UE，远端UE与中继UE之间通过sidelink单播通信，处于空闲态或非激活态的中继UE与基站之间没有无线资源控制(Radio Resource Control，RRC)连接，处于连接态的中继UE与基站之间存在RRC连接。In the related art, in order to support direct communication between UEs, a sidelink communication method is introduced. A UE may communicate with the base station through the relay of another UE instead of directly connecting to the base station. Among them, the UE that is not connected to the base station is called a remote UE, and the UE that provides relay function is called a relay UE. The remote UE and the relay UE communicate through sidelink unicast. There is no Radio Resource Control (RRC) connection between the relay UE in idle or inactive state and the base station, and there is an RRC connection between the relay UE in connected state and the base station.
处于空闲态或非激活态的中继UE可以通过接建立过程建立RRC连接，从而进入连接态，中继UE需要向基站发送RRC建立请求消息，需携带建立连接的原因，因此如何设置建立原因或者恢复原因是目前亟需解决的问题。A relay UE in an idle or inactive state can establish an RRC connection through the connection establishment process, thereby entering a connected state. The relay UE needs to send an RRC establishment request message to the base station, which needs to carry the reason for establishing the connection. Therefore, how to set the establishment reason or recovery reason is a problem that needs to be solved urgently.
请参见图2，图2为本公开实施例提供的一种连接建立的方法的流程示意图，该方法应用于中继UE。如图2所示，该方法可以包括但不限于如下步骤：Please refer to Figure 2, which is a schematic diagram of a flow chart of a method for establishing a connection provided by an embodiment of the present disclosure, and the method is applied to a relay UE. As shown in Figure 2, the method may include but is not limited to the following steps:
步骤S201，接收远端UE发送的指示信息。Step S201: receiving indication information sent by a remote UE.
为了提高传输速率和传输可靠性，远端UE可以同时通过直接路径和间接路径与网络保持连接，这种功能称为多路径连接(Multipath，MP)，远端UE处于连接态才能支持多路径连接。In order to improve the transmission rate and transmission reliability, the remote UE can maintain connection with the network through both direct and indirect paths. This function is called multipath connection (MP). The remote UE can only support multipath connection when it is in a connected state.
远端UE的承载可以只通过直接路径传输，称为直接承载(Direct Bearer)，也可以只通过间接路径传输，称为间接承载(Indirect Bearer)，也可以同时通过直接路径和间接路径传输，称为多路径承载(Multipath Bearer)。The bearer of the remote UE can be transmitted only through the direct path, which is called direct bearer (Direct Bearer), or only through the indirect path, which is called indirect bearer (Indirect Bearer), or through both direct and indirect paths, which is called multipath bearer (Multipath Bearer).
当为远端UE添加间接路径时，提供间接路径的中继UE可以处于任何RRC状态，包括连接态、空闲态或非激活态。为了给远端UE提供数据转发，处于空闲态或非激活态的中继UE需要进入连接态。When adding an indirect path for a remote UE, the relay UE providing the indirect path can be in any RRC state, including connected, idle or inactive. In order to provide data forwarding for the remote UE, the relay UE in idle or inactive state needs to enter the connected state.
中继UE在接收到远端UE发送的指示信息时，在一些实施例中，当中继UE处于空闲态时，触发连接建立过程；在一些实施例中，当中继UE处于非激活态时，触发恢复连接过程。When the relay UE receives the indication information sent by the remote UE, in some embodiments, when the relay UE is in an idle state, a connection establishment process is triggered; in some embodiments, when the relay UE is in an inactive state, a connection recovery process is triggered.
步骤S202，根据所述指示信息设置原因，所述原因包括以下中的至少一项：所述中继UE与基站建立连接的原因、所述中继UE与基站恢复连接的原因。Step S202: setting a reason according to the indication information, where the reason includes at least one of the following: a reason why the relay UE establishes a connection with the base station, and a reason why the relay UE resumes a connection with the base station.
根据中继UE的当前状态(非激活态或空闲态)设置中继UE与基站建立连接的原因。The reason for the relay UE to establish a connection with the base station is set according to the current state of the relay UE (inactive state or idle state).
在一些实施例中，当中继UE处于空闲态时，触发建立连接过程，设置建立连接的原因；即响应于所述中继UE处于空闲状态，所述中继UE与基站建立无线资源控制RRC连接的原因为所述中继UE与所述基站连接建立的原因。In some embodiments, when the relay UE is in an idle state, the connection establishment process is triggered and the reason for establishing the connection is set; that is, in response to the relay UE being in an idle state, the reason for the relay UE to establish a radio resource control RRC connection with the base station is the reason for establishing the connection between the relay UE and the base station.
在一些实施例中，当中继UE处于非激活态时，触发恢复连接过程，设置恢复连接原因； 响应于所述中继UE处于非激活状态，所述中继UE与基站建立RRC连接的原因为所述中继UE与所述基站恢复连接的原因。In some embodiments, when the relay UE is in an inactive state, a connection recovery process is triggered and a connection recovery reason is set; in response to the relay UE being in an inactive state, the reason for the relay UE to establish an RRC connection with the base station is the reason for the relay UE to recover the connection with the base station.
由中继UE在接收到远端UE发送的指示信息，并根据该指示信息设置中继UE与基站建立连接的原因，从而使得中继UE可以合理的设置建立连接的原因或恢复连接的原因，避免MP添加失败。The relay UE receives the indication information sent by the remote UE and sets the reason for the relay UE to establish a connection with the base station according to the indication information, so that the relay UE can reasonably set the reason for establishing the connection or the reason for restoring the connection to avoid MP addition failure.
请参见图3，图3为本公开实施例提供的一种连接建立的方法的流程示意图，方法由远端终端设备UE执行。如图3所示，该方法可以包括但不限于如下步骤：Please refer to Figure 3, which is a flow chart of a method for establishing a connection provided by an embodiment of the present disclosure, and the method is executed by a remote terminal device UE. As shown in Figure 3, the method may include but is not limited to the following steps:
步骤S301，远端UE向中继UE发送指示信息，以指示所述中继UE与基站建立连接的原因。Step S301: The remote UE sends indication information to the relay UE to indicate the reason why the relay UE establishes a connection with the base station.
当远端UE有连接需求时，向中继UE发送指示信息，指示所述中继UE与基站建立连接的原因，触发中继UE的恢复连接过程或者触发连接建立过程。以便中继UE根据接收到的指示信息完成连接原因的设置。When the remote UE has a connection requirement, an indication message is sent to the relay UE to indicate the reason for the relay UE to establish a connection with the base station, triggering the relay UE's connection recovery process or connection establishment process, so that the relay UE completes the setting of the connection reason according to the received indication message.
在远端UE有连接需求时，向中继UE发送指示信息，由中继UE根据远端UE发送的指示信息，设置中继UE与基站建立连接的原因，从而使得中继UE可以合理的设置建立连接的原因或恢复连接的原因，避免MP添加失败。When the remote UE has a connection requirement, an indication message is sent to the relay UE, and the relay UE sets the reason for establishing a connection between the relay UE and the base station according to the indication message sent by the remote UE, so that the relay UE can reasonably set the reason for establishing the connection or the reason for restoring the connection to avoid MP addition failure.
本公开实施例提供了另一种连接建立的方法，图4为本公开实施例提供的另一种连接建立的方法的流程示意图，该方法应用于远端UE和中继UE通信过程，如图4所示，该连接建立的方法可包括如下步骤：The present disclosure provides another method for establishing a connection. FIG4 is a flow chart of another method for establishing a connection provided by the present disclosure. The method is applied to a communication process between a remote UE and a relay UE. As shown in FIG4, the method for establishing a connection may include the following steps:
步骤S401，远端UE向所述中继UE发送直连sidelink无线资源控制RRC消息，所述sidelink RRC消息中携带所述指示信息。Step S401, the remote UE sends a direct sidelink radio resource control RRC message to the relay UE, and the sidelink RRC message carries the indication information.
当远端UE需要执行数据转发时，向中继UE发送直连sidelink RRC消息，所述sidelink RRC消息中携带所述指示信息。在实际应用中发送指示信息的方式不限于通过sidelink RRC消息，还可以发送sidelink中继适配协议(relay Adaptation Protocol,SRAP)数据单元(Protocol Data Unit，PDU)，具体本公开实施例不进行限定。When the remote UE needs to perform data forwarding, a direct sidelink RRC message is sent to the relay UE, and the sidelink RRC message carries the indication information. In actual applications, the method of sending indication information is not limited to the sidelink RRC message, and the sidelink relay adaptation protocol (SRAP) data unit (PDU) can also be sent, which is not limited in the specific embodiments of the present disclosure.
步骤S402，中继UE接收所述远端UE发送的直连sidelink RRC消息。Step S402, the relay UE receives the direct sidelink RRC message sent by the remote UE.
中继UE接收远端UE发送的直连sidelink RRC消息，使得处于空闲态或非激活态的中继UE触发恢复连接过程或触发连接建立过程。The relay UE receives the direct sidelink RRC message sent by the remote UE, so that the relay UE in the idle or inactive state triggers the connection recovery process or the connection establishment process.
步骤S403，中继UE将所述中继UE与所述基站建立RRC连接的原因设置为所述指示信息指示的原因。Step S403: The relay UE sets the reason for establishing the RRC connection between the relay UE and the base station to the reason indicated by the indication information.
中继UE基于步骤402获取sidelink RRC消息后，解析得到其携带的指示信息后，将并与所述基站建立RRC连接的原因设置为所述指示信息指示的原因，即将连接的原因设置成与指示信息相同。After the relay UE obtains the sidelink RRC message based on step 402 and parses the indication information carried by the message, it sets the reason for establishing the RRC connection with the base station to the reason indicated by the indication information, that is, sets the reason for the connection to be the same as the indication information.
由远端UE向所述中继UE发送直连sidelink RRC消息，中继UE接收所述远端UE发送的直连sidelink RRC消息，将所述中继UE与所述基站建立RRC连接的原因设置为所述指示信息指示的原因，从而使得中继UE可以合理的设置建立连接的原因或恢复连接的原因，避免MP添加失败。The remote UE sends a direct sidelink RRC message to the relay UE, and the relay UE receives the direct sidelink RRC message sent by the remote UE, and sets the reason for the relay UE to establish an RRC connection with the base station to the reason indicated by the indication information, so that the relay UE can reasonably set the reason for establishing the connection or the reason for restoring the connection to avoid MP adding failure.
本公开实施例提供了另一种连接建立的方法，图5为本公开实施例提供的另一种连接建立的方法的流程示意图，该方法应用于远端UE和中继UE通信过程，如图5所示，该连接建立的方法可包括如下步骤：The present disclosure provides another method for establishing a connection. FIG5 is a flow chart of another method for establishing a connection provided by the present disclosure. The method is applied to a communication process between a remote UE and a relay UE. As shown in FIG5, the method for establishing a connection may include the following steps:
步骤S501，远端UE设置指示信息。Step S501: The remote UE sets indication information.
其中，所述设置指示信息包括以下中的至少一项：根据触发连接建立的业务类型设置所述指示信息；通过接收网络设备发送的所述指示信息设置所述指示信息。The setting of the indication information includes at least one of the following: setting the indication information according to the service type that triggers the establishment of the connection; setting the indication information by receiving the indication information sent by the network device.
在一些实施例中，远端UE可以采用但不限于以下两种方式设置指示信息，方式一：远端UE根据在间接链路上传输的业务类型确定指示信息；方式二：基站在添加间接路径时，指示原因，远端UE根据网络设备(如基站)的指示确定指示信息。具体不做限定。In some embodiments, the remote UE may set the indication information in the following two ways, but not limited to: way 1: the remote UE determines the indication information according to the service type transmitted on the indirect link; way 2: when the base station adds the indirect path, it indicates the reason, and the remote UE determines the indication information according to the indication of the network device (such as the base station). No specific limitation is made.
步骤S502，远端UE向所述中继UE发送直连sidelinkRRC消息，所述sidelink RRC消息中携带所述指示信息。Step S502: The remote UE sends a direct sidelink RRC message to the relay UE, and the sidelink RRC message carries the indication information.
当远端UE需要执行数据转发时，向中继UE发送直连sidelink RRC消息，所述sidelink RRC消息中携带所述指示信息。在实际应用中发送指示信息的方式不限于通过sidelink RRC消息，还可以发送sidelinkSRAPPDU，具体本公开实施例不进行限定。When the remote UE needs to perform data forwarding, a direct sidelink RRC message is sent to the relay UE, and the sidelink RRC message carries the indication information. In actual applications, the method of sending the indication information is not limited to the sidelink RRC message, and the sidelink SRAPPDU can also be sent, which is not limited in the specific embodiments of the present disclosure.
步骤S503，中继UE接收所述远端UE发送的直连sidelink RRC消息。Step S503, the relay UE receives the direct sidelink RRC message sent by the remote UE.
中继UE接收远端UE发送的直连sidelink RRC消息，使得处于空闲态或非激活态的中继UE触发恢复连接过程或触发连接建立过程。The relay UE receives the direct sidelink RRC message sent by the remote UE, so that the relay UE in the idle or inactive state triggers the connection recovery process or the connection establishment process.
步骤S504，中继UE将所述中继UE与所述基站建立RRC连接的原因设置为所述指示信息指示的原因。Step S504: The relay UE sets the reason for establishing the RRC connection between the relay UE and the base station to the reason indicated by the indication information.
中继UE基于步骤502获取sidelink RRC消息后，解析得到其携带的指示信息后，将并与所述基站建立RRC连接的原因设置为所述指示信息指示的原因，即将连接的原因设置成与指示信息相同。After the relay UE obtains the sidelink RRC message based on step 502 and parses the indication information carried by the message, it sets the reason for establishing the RRC connection with the base station to the reason indicated by the indication information, that is, sets the reason for the connection to be the same as the indication information.
由远端UE设置指示信息，其中，所述设置指示信息包括以下中的至少一项：根据触发连接建立的业务类型设置所述指示信息；通过接收网络设备发送的所述指示信息设置所述指示信息，并向所述中继UE发送携带指示信息的sidelink RRC消息，中继UE接收所述远端UE发送的直连sidelink RRC消息，将所述中继UE与所述基站建立RRC连接的原因设置为所述指示信息指示的原因，从而使得中继UE可以合理的设置建立连接的原因或恢复连接的原因，避免MP添加失败。The remote UE sets indication information, wherein the setting of the indication information includes at least one of the following: setting the indication information according to the service type that triggers the establishment of the connection; setting the indication information by receiving the indication information sent by the network device, and sending a sidelink RRC message carrying the indication information to the relay UE, the relay UE receives the direct sidelink RRC message sent by the remote UE, and sets the reason for the relay UE to establish the RRC connection with the base station to the reason indicated by the indication information, so that the relay UE can reasonably set the reason for establishing the connection or the reason for restoring the connection, thereby avoiding the failure of MP adding.
本公开实施例提供了另一种连接建立的方法，图6为本公开实施例提供的另一种连接建立的方法的流程示意图，该方法应用于远端UE和中继UE通信过程，如图6所示，该连接建立的方法可包括如下步骤：The present disclosure provides another method for establishing a connection. FIG6 is a flow chart of another method for establishing a connection provided by the present disclosure. The method is applied to a communication process between a remote UE and a relay UE. As shown in FIG6, the method for establishing a connection may include the following steps:
步骤S601，远端UE向所述中继UE发送sidelink SRAP PDU，基于所述sidelink SRAPPDU对应的RLC实体进行所述中继UE与基站建立RRC连接的原因的指示。In step S601, the remote UE sends a sidelink SRAP PDU to the relay UE, and indicates the reason why the relay UE establishes an RRC connection with the base station based on the RLC entity corresponding to the sidelink SRAPPDU.
当远端UE需要执行数据转发时，向中继UE发送sidelink SRAP PDU，基于所述sidelink SRAPPDU对应的RLC实体进行所述中继UE与基站建立RRC连接的原因的指示。When the remote UE needs to perform data forwarding, it sends a sidelink SRAP PDU to the relay UE, and indicates the reason for the relay UE to establish an RRC connection with the base station based on the RLC entity corresponding to the sidelink SRAPPDU.
在一些实施例中，本公开示例所述的RLC实体用于MP传输。In some embodiments, the RLC entity described in the examples of the present disclosure is used for MP transmission.
在实际应用中发送指示信息的方式不限于通过发送sidelink SRAP PDU消息的方式，还可以通过发送直连sidelink RRC消息的方式，具体本公开实施例不进行限定。In actual applications, the method of sending indication information is not limited to sending a sidelink SRAP PDU message, but may also be sent by sending a direct sidelink RRC message, which is not limited in the specific embodiments of the present disclosure.
步骤S602，中继UE接收所述远端UE发送的sidelinkSRAPPDU。Step S602: The relay UE receives the sidelink SRAPPDU sent by the remote UE.
中继UE接收远端UE发送的直连sidelinkSRAPPDU，使得处于空闲态或非激活态的中继UE触发恢复连接过程或触发连接建立过程。The relay UE receives the direct connection sidelink SR APPDU sent by the remote UE, so that the relay UE in an idle state or an inactive state triggers a connection recovery process or a connection establishment process.
步骤S603，中继UE根据所述SRAPPDU对应的RLC实体设置所述中继UE与基站建立RRC连接的原因。Step S603: The relay UE sets a reason for establishing an RRC connection between the relay UE and the base station according to the RLC entity corresponding to the SRAPPDU.
中继UE基于步骤602获取SRAPPDU后，解析设置SRAPPDU对应的RLC实体，中继UE根据RLC实体设置所述中继UE与基站建立RRC连接的原因。After the relay UE obtains the SRAPPDU based on step 602, it parses and sets the RLC entity corresponding to the SRAPPDU, and the relay UE sets the reason for establishing the RRC connection between the relay UE and the base station according to the RLC entity.
实际应用中，SRAPPDU与RLC实体存在对应关系，而RLC实体和原因存在对应关系，因此中继UE通过SRAPPDU可实现原因设置。In actual applications, there is a corresponding relationship between SRAPPDU and RLC entity, and there is a corresponding relationship between RLC entity and cause, so the relay UE can implement cause setting through SRAPPDU.
由远端UE向所述中继UE发送sidelink SRAP PDU，基于所述sidelink SRAPPDU对应的RLC实体进行所述中继UE与基站建立RRC连接的原因的指示，中继UE接收所述远端UE发送的sidelinkSRAPPDU后，根据所述SRAPPDU对应的RLC实体设置所述中继UE与基站建立RRC连接的原因，从而使得中继UE可以合理的设置建立连接的原因或恢复连接的原因，避免MP添加失败。The remote UE sends a sidelink SRAP PDU to the relay UE, and the RLC entity corresponding to the sidelink SRAPPDU indicates the reason for the relay UE to establish an RRC connection with the base station. After the relay UE receives the sidelink SRAPPDU sent by the remote UE, the relay UE sets the reason for the relay UE to establish an RRC connection with the base station according to the RLC entity corresponding to the SRAPPDU, so that the relay UE can reasonably set the reason for establishing the connection or the reason for restoring the connection to avoid MP adding failure.
本公开实施例提供了另一种连接建立的方法，图7为本公开实施例提供的另一种连接建立的方法的流程示意图，该方法应用于远端UE和中继UE通信过程，如图7所示，该连接建立的方法可包括如下步骤：The present disclosure provides another method for establishing a connection. FIG. 7 is a flow chart of another method for establishing a connection provided by the present disclosure. The method is applied to a communication process between a remote UE and a relay UE. As shown in FIG. 7 , the method for establishing a connection may include the following steps:
步骤S701，远端UE向所述中继UE发送sidelinkSRAPPDU，基于所述sidelink SRAPPDU对应的RLC实体进行所述中继UE与基站建立RRC连接的原因的指示。Step S701, the remote UE sends a sidelink SRAPPDU to the relay UE, and indicates the reason for the relay UE to establish an RRC connection with the base station based on the RLC entity corresponding to the sidelink SRAPPDU.
当远端UE需要执行数据转发时，向中继UE发送sidelink SRAP PDU，基于所述sidelink SRAPPDU对应的RLC实体进行所述中继UE与基站建立RRC连接的原因的指示。When the remote UE needs to perform data forwarding, it sends a sidelink SRAP PDU to the relay UE, and indicates the reason for the relay UE to establish an RRC connection with the base station based on the RLC entity corresponding to the sidelink SRAPPDU.
在一些实施例中，本公开示例所述的RLC实体用于MP传输。In some embodiments, the RLC entity described in the examples of the present disclosure is used for MP transmission.
在实际应用中发送指示信息的方式不限于通过发送sidelink SRAP PDU消息的方式，还可以通过发送直连sidelink RRC消息的方式，具体本公开实施例不进行限定。In actual applications, the method of sending indication information is not limited to sending a sidelink SRAP PDU message, but may also be sent by sending a direct sidelink RRC message, which is not limited in the specific embodiments of the present disclosure.
步骤S702，中继UE接收所述远端UE发送的sidelinkSRAPPDU。Step S702: The relay UE receives the sidelink SRAPPDU sent by the remote UE.
中继UE接收远端UE发送的直连sidelinkSRAPPDU，使得处于空闲态或非激活态的中继UE触发恢复连接过程或触发连接建立过程。The relay UE receives the direct connection sidelink SR APPDU sent by the remote UE, so that the relay UE in an idle state or an inactive state triggers a connection recovery process or a connection establishment process.
步骤S703，所述RLC实体为第一RLC实体，中继UE将第一原因设置为所述中继UE与基站建立RRC连接的原因。Step S703: the RLC entity is a first RLC entity, and the relay UE sets a first cause as a cause for establishing an RRC connection between the relay UE and the base station.
中继UE基于步骤702获取SRAPPDU后，解析设置SRAPPDU对应的RLC实体为第一RLC实体，中继UE将第一原因设置为所述中继UE与基站建立RRC连接的原因。After the relay UE obtains the SRAPPDU based on step 702, it parses and sets the RLC entity corresponding to the SRAPPDU as the first RLC entity, and the relay UE sets the first reason as the reason for the relay UE to establish an RRC connection with the base station.
所述第一原因为以下任一种：紧急呼叫emergency、高优先级接入highPriorityAccess、用户终结的接入mt-Access、用户发起的信令mo-Signalling、用户发起的数据mo-Data、用户发起的语音mo-VoiceCall、用户发起的视频电话mo-VideoCall、用户发起的短消息mo-SMS、具 有优先级的多媒体服务优先接入mps-PriorityAccess、专用服务优先接入mcs-PriorityAccess。The first reason is any one of the following: emergency call emergency, high priority access highPriorityAccess, user terminated access mt-Access, user initiated signaling mo-Signalling, user initiated data mo-Data, user initiated voice mo-VoiceCall, user initiated video call mo-VideoCall, user initiated short message mo-SMS, prioritized multimedia service priority access mps-PriorityAccess, and dedicated service priority access mcs-PriorityAccess.
由远端UE向中继UE发送sidelink SRAP PDU，基于sidelink SRAPPDU对应的RLC实体进行中继UE与基站建立RRC连接的原因的指示，中继UE接收远端UE发送的sidelinkSRAPPDU，在设置RLC实体为第一RLC实体后，中继UE将第一原因设置为中继UE与基站建立RRC连接的原因。从而使得中继UE可以合理的设置建立连接的原因或恢复连接的原因，避免MP添加失败。The remote UE sends a sidelink SRAP PDU to the relay UE, and the RLC entity corresponding to the sidelink SRAPPDU indicates the reason for the relay UE to establish an RRC connection with the base station. The relay UE receives the sidelink SRAPPDU sent by the remote UE, and after setting the RLC entity as the first RLC entity, the relay UE sets the first reason as the reason for the relay UE to establish an RRC connection with the base station. This allows the relay UE to reasonably set the reason for establishing a connection or restoring a connection, avoiding MP addition failure.
本公开实施例提供了另一种连接建立的方法，图8为本公开实施例提供的另一种连接建立的方法的流程示意图，该方法应用于远端UE和中继UE通信过程，如图8所示，该连接建立的方法可包括如下步骤：The present disclosure provides another method for establishing a connection. FIG8 is a flow chart of another method for establishing a connection provided by the present disclosure. The method is applied to a communication process between a remote UE and a relay UE. As shown in FIG8, the method for establishing a connection may include the following steps:
步骤S801，远端UE向所述中继UE发送RRC消息，所述RRC消息携带所述第一RLC或第二RLC的标识以及配置。Step S801: The remote UE sends an RRC message to the relay UE, where the RRC message carries an identifier and configuration of the first RLC or the second RLC.
远端UE接收网络设备发送的以下任一信息：第一RLC标识和配置、第二RLC标识和配置。具体接收内容及数量不做限定。The remote UE receives any of the following information sent by the network device: the first RLC identifier and configuration, the second RLC identifier and configuration. The specific received content and quantity are not limited.
所第一RLC标识和配置、第二RLC标识和配置可以由基站发送给远端UE；可以通过***消息发送给远端UE，还可以通过RRC重配消息发送给远端UE；也可以为标准规定好的。本公开实施例不做限定。The first RLC identifier and configuration, the second RLC identifier and configuration may be sent by the base station to the remote UE, may be sent to the remote UE via a system message, may be sent to the remote UE via an RRC reconfiguration message, or may be specified in the standard. This disclosure embodiment does not limit this.
步骤S802，远端UE向所述中继UE发送sidelink SRAP PDU，基于所述sidelink SRAPPDU对应的RLC实体进行所述中继UE与基站建立RRC连接的原因的指示。In step S802, the remote UE sends a sidelink SRAP PDU to the relay UE, and indicates the reason for establishing an RRC connection between the relay UE and the base station based on the RLC entity corresponding to the sidelink SRAPPDU.
当远端UE需要执行数据转发时，向中继UE发送sidelink SRAP PDU，基于所述sidelink SRAPPDU对应的RLC实体进行所述中继UE与基站建立RRC连接的原因的指示。When the remote UE needs to perform data forwarding, it sends a sidelink SRAP PDU to the relay UE, and indicates the reason for the relay UE to establish an RRC connection with the base station based on the RLC entity corresponding to the sidelink SRAPPDU.
在一些实施例中，本公开示例所述的RLC实体用于MP传输。In some embodiments, the RLC entity described in the examples of the present disclosure is used for MP transmission.
本公开实施例中，对远端UE向中继UE发送携带第一RLC或第二RLC的标识以及配置的RRC消息、sidelink SRAP PDU的发送顺序不做限定。In the disclosed embodiment, there is no limitation on the order in which the remote UE sends the RRC message and sidelink SRAP PDU carrying the identifier of the first RLC or the second RLC and the configuration to the relay UE.
示例性的，远端UE可以先发送携带第一RLC或第二RLC的标识以及配置的RRC消息，再发送sidelink SRAP PDU；或者，先发送sidelink SRAP PDU，再发送携带第一RLC或第二RLC的标识以及配置的RRC消息；或者，同时发送携带第一RLC或第二RLC的标识以及配置的RRC消息、sidelink SRAP PDU，或者其他的发送顺序，本公开实施例不做限定。Exemplarily, the remote UE may first send an RRC message carrying the identifier and configuration of the first RLC or the second RLC, and then send the sidelink SRAP PDU; or, first send the sidelink SRAP PDU, and then send the RRC message carrying the identifier and configuration of the first RLC or the second RLC; or, simultaneously send an RRC message carrying the identifier and configuration of the first RLC or the second RLC and the sidelink SRAP PDU, or other sending orders, which are not limited in the embodiments of the present disclosure.
步骤S803，中继UE接收所述远端UE发送的sidelinkSRAPPDU。Step S803: The relay UE receives the sidelink SRAPPDU sent by the remote UE.
中继UE接收远端UE发送的sidelinkSRAPPDU，使得处于空闲态或非激活态的中继UE触发恢复连接过程或触发连接建立过程。The relay UE receives the sidelink SR APPDU sent by the remote UE, so that the relay UE in an idle state or an inactive state triggers a connection recovery process or a connection establishment process.
步骤S804，中继UE获取第一RLC或第二RLC的标识以及配置。Step S804: The relay UE obtains the identifier and configuration of the first RLC or the second RLC.
中继UE接收远端UE发送的RRC消息，所述RRC消息携带所述第一RLC或第二RLC的标识以及配置。The relay UE receives an RRC message sent by a remote UE, where the RRC message carries an identifier and a configuration of the first RLC or the second RLC.
中继UE获取第一RLC或第二RLC的标识以及配置时还可以采用以下方式，例如：根据标准规定获取第一RLC或第二RLC的标识以及配置；或者接收网络设备发送的***信息，所述***信息携带所述第一RLC或第二RLC的标识以及配置。具体的，本公开实施例不进行限 定。When the relay UE obtains the identifier and configuration of the first RLC or the second RLC, the following methods may also be used, for example: obtaining the identifier and configuration of the first RLC or the second RLC according to the standard; or receiving system information sent by the network device, the system information carrying the identifier and configuration of the first RLC or the second RLC. Specifically, the embodiments of the present disclosure are not limited.
本公开实施例中，对中继UE接收RRC消息、sidelink SRAP PDU的接收顺序不做限定。In the disclosed embodiment, there is no limitation on the order in which the relay UE receives RRC messages and sidelink SRAP PDU.
示例性的，中继UE可以先接收RRC消息，再接收sidelink SRAP PDU；或者，先接收sidelink SRAP PDU，再接收RRC消息；或者，同时接收RRC消息、sidelink SRAP PDU，或者其他的发送顺序，或者其他的接收顺序，本公开实施例不做限定。Exemplarily, the relay UE may first receive the RRC message and then receive the sidelink SRAP PDU; or, first receive the sidelink SRAP PDU and then receive the RRC message; or, receive the RRC message and the sidelink SRAP PDU at the same time, or other sending order or other receiving order, which is not limited to the embodiments of the present disclosure.
步骤S805，中继UE根据所述SRAPPDU对应的RLC实体设置所述中继UE与基站建立RRC连接的原因。Step S805: The relay UE sets a reason for establishing an RRC connection between the relay UE and the base station according to the RLC entity corresponding to the SRAPPDU.
中继UE基于步骤805获取SRAPPDU后，解析设置SRAPPDU对应的RLC实体，中继UE根据RLC实体设置所述中继UE与基站建立RRC连接的原因。After the relay UE obtains the SRAPPDU based on step 805, it parses and sets the RLC entity corresponding to the SRAPPDU, and the relay UE sets the reason for establishing the RRC connection between the relay UE and the base station according to the RLC entity.
由远端UE向中继UE发送sidelink SRAP PDU，基于sidelink SRAPPDU对应的RLC实体进行中继UE与基站建立RRC连接的原因的指示，远端UE向所述中继UE发送发送RRC消息，所述RRC消息携带所述第一RLC或第二RLC的标识以及配置，中继UE接收远端UE发送的sidelinkSRAPPDU，得到SRAPPDU对应的RLC实体，在RLC实体设置所述中继UE与基站建立RRC连接的原因。从而使得中继UE可以合理的设置建立连接的原因或恢复连接的原因，避免MP添加失败。The remote UE sends a sidelink SRAP PDU to the relay UE, and the RLC entity corresponding to the sidelink SRAPPDU indicates the reason for the relay UE to establish an RRC connection with the base station. The remote UE sends an RRC message to the relay UE, and the RRC message carries the identifier and configuration of the first RLC or the second RLC. The relay UE receives the sidelink SRAPPDU sent by the remote UE, obtains the RLC entity corresponding to the SRAPPDU, and sets the reason for the relay UE to establish an RRC connection with the base station in the RLC entity. In this way, the relay UE can reasonably set the reason for establishing the connection or restoring the connection to avoid the failure of MP addition.
本公开实施例提供了另一种连接建立的方法，图9为本公开实施例提供的另一种连接建立的方法的流程示意图，该方法应用于远端UE和中继UE通信过程，如图9所示，该连接建立的方法可包括如下步骤：The present disclosure provides another method for establishing a connection. FIG9 is a flow chart of another method for establishing a connection provided by the present disclosure. The method is applied to a communication process between a remote UE and a relay UE. As shown in FIG9 , the method for establishing a connection may include the following steps:
步骤S901，远端UE向所述中继UE发送sidelink SRAP PDU，基于所述sidelink SRAPPDU对应的RLC实体进行所述中继UE与基站建立RRC连接的原因的指示。In step S901, the remote UE sends a sidelink SRAP PDU to the relay UE, and indicates the reason why the relay UE establishes an RRC connection with the base station based on the RLC entity corresponding to the sidelink SRAPPDU.
当远端UE需要执行数据转发时，向中继UE发送sidelink SRAP PDU，基于所述sidelink SRAPPDU对应的RLC实体进行所述中继UE与基站建立RRC连接的原因的指示。When the remote UE needs to perform data forwarding, it sends a sidelink SRAP PDU to the relay UE, and indicates the reason for the relay UE to establish an RRC connection with the base station based on the RLC entity corresponding to the sidelink SRAPPDU.
在一些实施例中，本公开示例所述的RLC实体用于MP传输。In some embodiments, the RLC entity described in the examples of the present disclosure is used for MP transmission.
步骤S902，远端UE向所述中继UE发送第一RLC标识与第一原因的对应关系。Step S902: The remote UE sends a correspondence between a first RLC identifier and a first cause to the relay UE.
在一些实施例中，所述第一RLC标识与第一原因的对应关系由基站发送给远端UE；也可以通过***消息发送给远端UE，还可以通过RRC重配消息发送给远端UE。本公开实施例不做限定。In some embodiments, the correspondence between the first RLC identifier and the first cause is sent by the base station to the remote UE; it can also be sent to the remote UE via a system message, or it can be sent to the remote UE via an RRC reconfiguration message. This disclosure embodiment is not limited.
本公开实施例中，对远端UE向中继UE发送sidelink SRAP PDU、第一RLC标识与第一原因的对应关系的发送顺序不做限定。In the disclosed embodiment, there is no limitation on the order of sending the sidelink SRAP PDU, the correspondence between the first RLC identifier and the first reason sent by the remote UE to the relay UE.
步骤S903，中继UE接收所述远端UE发送的sidelinkSRAPPDU。Step S903: The relay UE receives the sidelink SRAPPDU sent by the remote UE.
中继UE接收远端UE发送的直连sidelinkSRAPPDU，使得处于空闲态或非激活态的中继UE触发恢复连接过程或触发连接建立过程。The relay UE receives the direct connection sidelink SR APPDU sent by the remote UE, so that the relay UE in an idle state or an inactive state triggers a connection recovery process or a connection establishment process.
步骤S904，中继UE获取所述第一RLC标识与所述第一原因的对应关系。Step S904: The relay UE obtains the correspondence between the first RLC identifier and the first cause.
中继UE接收远端UE发送的第一RLC标识与第一原因的对应关系。The relay UE receives a correspondence between a first RLC identifier and a first cause sent by a remote UE.
中继UE获取所述第一RLC与所述第一原因的对应关系还可以采用以下方式获取所述第一RLC标识与所述第一原因的对应关系，例如：获取所述网络设备配置的所述第一RLC标识 与所述第一原因的对应关系；或者根据标准规定获取所述第一RLC标识与所述第一原因的对应关系。具体的，本公开实施例不进行限定。The relay UE may also obtain the correspondence between the first RLC and the first cause in the following manners, for example: obtaining the correspondence between the first RLC identifier and the first cause configured by the network device; or obtaining the correspondence between the first RLC identifier and the first cause according to standard provisions. Specifically, the embodiments of the present disclosure are not limited.
本公开实施例中，对中继UE接收sidelink SRAP PDU、第一RLC标识与第一原因的对应关系的发送顺序不做限定。In the disclosed embodiment, there is no limitation on the sending order of the correspondence between the relay UE receiving the sidelink SRAP PDU, the first RLC identifier and the first reason.
步骤S905，所述RLC实体为第一RLC实体，中继UE将第一原因设置为所述中继UE与基站建立RRC连接的原因。Step S905: The RLC entity is a first RLC entity, and the relay UE sets the first cause as a cause for establishing an RRC connection between the relay UE and the base station.
中继UE基于步骤903获取SRAPPDU后，解析设置SRAPPDU对应的RLC实体为第一RLC实体，中继UE将第一原因设置为所述中继UE与基站建立RRC连接的原因。After the relay UE obtains the SRAPPDU based on step 903, it parses and sets the RLC entity corresponding to the SRAPPDU as the first RLC entity, and the relay UE sets the first cause as the cause for the relay UE to establish an RRC connection with the base station.
所述第一原因为以下任一种：紧急呼叫emergency、高优先级接入highPriorityAccess、用户终结的接入mt-Access、用户发起的信令mo-Signalling、用户发起的数据mo-Data、用户发起的语音mo-VoiceCall、用户发起的视频电话mo-VideoCall、用户发起的短消息mo-SMS、具有优先级的多媒体服务优先接入mps-PriorityAccess、专用服务优先接入mcs-PriorityAccess。The first reason is any one of the following: emergency call emergency, high priority access highPriorityAccess, user terminated access mt-Access, user initiated signaling mo-Signalling, user initiated data mo-Data, user initiated voice mo-VoiceCall, user initiated video call mo-VideoCall, user initiated short message mo-SMS, priority multimedia service priority access mps-PriorityAccess, dedicated service priority access mcs-PriorityAccess.
由远端UE向中继UE发送sidelink SRAP PDU，基于sidelink SRAPPDU对应的RLC实体进行中继UE与基站建立RRC连接的原因的指示，远端UE向所述中继UE发送第一RLC标识与第一原因的对应关系，中继UE接收远端UE发送的sidelinkSRAPPDU，中继UE获取所述第一RLC标识与所述第一原因的对应关系，在设置RLC实体为第一RLC实体后，中继UE将第一原因设置为中继UE与基站建立RRC连接的原因。从而使得中继UE可以合理的设置建立连接的原因或恢复连接的原因，避免MP添加失败。The remote UE sends a sidelink SRAP PDU to the relay UE, and the RLC entity corresponding to the sidelink SRAPPDU indicates the reason for the relay UE to establish an RRC connection with the base station. The remote UE sends the correspondence between the first RLC identifier and the first reason to the relay UE, and the relay UE receives the sidelink SRAPPDU sent by the remote UE. The relay UE obtains the correspondence between the first RLC identifier and the first reason. After setting the RLC entity as the first RLC entity, the relay UE sets the first reason as the reason for the relay UE to establish an RRC connection with the base station. In this way, the relay UE can reasonably set the reason for establishing the connection or the reason for restoring the connection to avoid the failure of MP addition.
本公开实施例提供了另一种连接建立的方法，图10为本公开实施例提供的另一种连接建立的方法的流程示意图，该方法应用于远端UE和中继UE通信过程，如图10所示，该连接建立的方法可包括如下步骤：The present disclosure provides another method for establishing a connection. FIG10 is a flow chart of another method for establishing a connection provided by the present disclosure. The method is applied to a communication process between a remote UE and a relay UE. As shown in FIG10 , the method for establishing a connection may include the following steps:
步骤S1001，远端UE向所述中继UE发送RRC消息，所述RRC消息携带所述第一RLC或第二RLC的标识以及配置。Step S1001: The remote UE sends an RRC message to the relay UE, where the RRC message carries an identifier and a configuration of the first RLC or the second RLC.
步骤S1002，远端UE向所述中继UE发送第一RLC标识与第一原因的对应关系。Step S1002: The remote UE sends a correspondence between a first RLC identifier and a first cause to the relay UE.
步骤S1003，远端UE向所述中继UE发送sidelink SRAP PDU，基于所述sidelink SRAPPDU对应的RLC实体进行所述中继UE与基站建立RRC连接的原因的指示。In step S1003, the remote UE sends a sidelink SRAP PDU to the relay UE, and indicates the reason for the relay UE to establish an RRC connection with the base station based on the RLC entity corresponding to the sidelink SRAPPDU.
当远端UE需要执行数据转发时，向中继UE发送sidelink SRAP PDU，基于所述sidelink SRAPPDU对应的RLC实体进行所述中继UE与基站建立RRC连接的原因的指示。When the remote UE needs to perform data forwarding, it sends a sidelink SRAP PDU to the relay UE, and indicates the reason for the relay UE to establish an RRC connection with the base station based on the RLC entity corresponding to the sidelink SRAPPDU.
在一些实施例中，本公开示例所述的RLC实体用于MP传输。In some embodiments, the RLC entity described in the examples of the present disclosure is used for MP transmission.
远端UE侧的第一RLC标识与第一原因的对应关系由网络设备下发得到。The correspondence between the first RLC identifier on the remote UE side and the first cause is sent by the network device.
本公开实施例中，对远端UE向中继UE发送RRC消息、sidelink SRAP PDU、第一RLC标识与第一原因的对应关系的发送顺序不做限定。In the disclosed embodiment, there is no limitation on the order in which the remote UE sends the RRC message, sidelink SRAP PDU, the correspondence between the first RLC identifier and the first reason to the relay UE.
示例性的，远端UE可以先发送RRC消息，再发送sidelink SRAP PDU，最后发送第一RLC标识与第一原因的对应关系；或者，先发送第一RLC标识与第一原因的对应关系，再发送RRC消息，最后发送sidelink SRAP PDU；或者，同时发送RRC消息、sidelink SRAP PDU、第一RLC标识与第一原因的对应关系，或者其他的发送顺序，本公开实施例不做限定。Exemplarily, the remote UE may first send an RRC message, then send a sidelink SRAP PDU, and finally send the correspondence between the first RLC identifier and the first cause; or, first send the correspondence between the first RLC identifier and the first cause, then send an RRC message, and finally send the sidelink SRAP PDU; or, simultaneously send an RRC message, a sidelink SRAP PDU, the correspondence between the first RLC identifier and the first cause, or other sending orders, which are not limited in the embodiments of the present disclosure.
步骤S1004，中继UE接收所述远端UE发送的sidelinkSRAPPDU。Step S1004: The relay UE receives the sidelink SRAPPDU sent by the remote UE.
中继UE接收远端UE发送的直连sidelinkSRAPPDU，使得处于空闲态或非激活态的中继UE触发恢复连接过程或触发连接建立过程。The relay UE receives the direct connection sidelink SR APPDU sent by the remote UE, so that the relay UE in an idle state or an inactive state triggers a connection recovery process or a connection establishment process.
步骤S1005，中继UE获取所述第一RLC标识与所述第一原因的对应关系。Step S1005: The relay UE obtains the correspondence between the first RLC identifier and the first cause.
中继UE接收远端UE发送的第一RLC标识与第一原因的对应关系。The relay UE receives a correspondence between a first RLC identifier and a first cause sent by a remote UE.
中继UE获取所述第一RLC与所述第一原因的对应关系还可以采用以下方式获取，例如：获取所述网络设备配置的所述第一RLC标识与所述第一原因的对应关系；或者根据标准规定获取所述第一RLC标识与所述第一原因的对应关系。具体的，本公开实施例不进行限定。The relay UE may also obtain the correspondence between the first RLC and the first cause by, for example, obtaining the correspondence between the first RLC identifier configured by the network device and the first cause; or obtaining the correspondence between the first RLC identifier and the first cause according to standard provisions. Specifically, the embodiments of the present disclosure are not limited.
步骤S1006，中继UE获取第一RLC或第二RLC的标识以及配置。Step S1006: The relay UE obtains the identifier and configuration of the first RLC or the second RLC.
中继UE接收远端UE发送的RRC消息，所述RRC消息携带所述第一RLC或第二RLC的标识以及配置。The relay UE receives an RRC message sent by a remote UE, where the RRC message carries an identifier and a configuration of the first RLC or the second RLC.
中继UE获取第一RLC或第二RLC的标识以及配置还可以采用以下方式获取，例如：根据标准规定获取第一RLC或第二RLC的标识以及配置；或者接收网络设备发送的***信息，所述***信息携带所述第一RLC或第二RLC的标识以及配置。具体的，本公开实施例不进行限定。The relay UE may also obtain the identification and configuration of the first RLC or the second RLC in the following manners, for example: obtaining the identification and configuration of the first RLC or the second RLC according to standard provisions; or receiving system information sent by a network device, the system information carrying the identification and configuration of the first RLC or the second RLC. Specifically, the embodiments of the present disclosure are not limited.
作为本公开实施例的可选方式，当不存在第一RLC实体或第二RLC实体时，中继UE根据接收到的第一RLC或第二RLC的标识以及配置建立对应的第一RLC实体或第二RLC实体。当存在第一RLC实体或第二RLC实体时，无需根据第一RLC或第二RLC的标识以及配置建立对应的第一RLC实体或第二RLC实体。As an optional manner of the embodiment of the present disclosure, when the first RLC entity or the second RLC entity does not exist, the relay UE establishes the corresponding first RLC entity or the second RLC entity according to the received identification and configuration of the first RLC or the second RLC. When the first RLC entity or the second RLC entity exists, it is not necessary to establish the corresponding first RLC entity or the second RLC entity according to the identification and configuration of the first RLC or the second RLC.
本公开实施例中，对中继UE接收RRC消息、sidelink SRAP PDU、第一RLC标识与第一原因的对应关系的发送顺序不做限定。In the disclosed embodiment, there is no limitation on the order in which the relay UE sends the corresponding relationship between the RRC message, the sidelink SRAP PDU, the first RLC identifier and the first reason.
示例性的，中继UE可以先接收RRC消息，再接收sidelink SRAP PDU，最后接收第一RLC标识与第一原因的对应关系；或者，先接收第一RLC标识与第一原因的对应关系，再接收RRC消息，最后接收sidelink SRAP PDU；或者，同时接收RRC消息、sidelink SRAP PDU、第一RLC标识与第一原因的对应关系，或者其他的接收顺序，本公开实施例不做限定。Exemplarily, the relay UE may first receive the RRC message, then receive the sidelink SRAP PDU, and finally receive the correspondence between the first RLC identifier and the first cause; or, first receive the correspondence between the first RLC identifier and the first cause, then receive the RRC message, and finally receive the sidelink SRAP PDU; or, simultaneously receive the RRC message, the sidelink SRAP PDU, the correspondence between the first RLC identifier and the first cause, or other receiving orders, which are not limited in the embodiments of the present disclosure.
步骤S1007，所述RLC实体为第一RLC实体，中继UE将第一原因设置为所述中继UE与基站建立RRC连接的原因。Step S1007: the RLC entity is a first RLC entity, and the relay UE sets the first cause as a cause for establishing an RRC connection between the relay UE and the base station.
中继UE基于步骤1004获取SRAPPDU后，解析设置SRAPPDU对应的RLC实体为第一RLC实体，中继UE将第一原因设置为所述中继UE与基站建立RRC连接的原因。After the relay UE obtains the SRAPPDU based on step 1004, it parses and sets the RLC entity corresponding to the SRAPPDU as the first RLC entity, and the relay UE sets the first reason as the reason for the relay UE to establish an RRC connection with the base station.
所述第一原因为以下任一种：紧急呼叫emergency、高优先级接入highPriorityAccess、用户终结的接入mt-Access、用户发起的信令mo-Signalling、用户发起的数据mo-Data、用户发起的语音mo-VoiceCall、用户发起的视频电话mo-VideoCall、用户发起的短消息mo-SMS、具有优先级的多媒体服务优先接入mps-PriorityAccess、专用服务优先接入mcs-PriorityAccess。The first reason is any one of the following: emergency call emergency, high priority access highPriorityAccess, user terminated access mt-Access, user initiated signaling mo-Signalling, user initiated data mo-Data, user initiated voice mo-VoiceCall, user initiated video call mo-VideoCall, user initiated short message mo-SMS, priority multimedia service priority access mps-PriorityAccess, dedicated service priority access mcs-PriorityAccess.
由远端UE向中继UE发送sidelink SRAP PDU，基于sidelink SRAPPDU对应的RLC实体进行中继UE与基站建立RRC连接的原因的指示，远端UE向所述中继UE发送第一RLC标识与第一原因的对应关系，中继UE接收远端UE发送的sidelinkSRAPPDU，中继UE获取所 述第一RLC标识与所述第一原因的对应关系，在设置RLC实体为第一RLC实体后，中继UE将第一原因设置为中继UE与基站建立RRC连接的原因。从而使得中继UE可以合理的设置建立连接的原因或恢复连接的原因，避免MP添加失败。The remote UE sends a sidelink SRAP PDU to the relay UE, and the RLC entity corresponding to the sidelink SRAPPDU indicates the reason for the relay UE to establish an RRC connection with the base station. The remote UE sends the correspondence between the first RLC identifier and the first reason to the relay UE, and the relay UE receives the sidelink SRAPPDU sent by the remote UE. The relay UE obtains the correspondence between the first RLC identifier and the first reason. After setting the RLC entity as the first RLC entity, the relay UE sets the first reason as the reason for the relay UE to establish an RRC connection with the base station. In this way, the relay UE can reasonably set the reason for establishing the connection or the reason for restoring the connection to avoid the failure of MP addition.
本公开实施例提供了另一种连接建立的方法，图11为本公开实施例提供的另一种连接建立的方法的流程示意图，该方法应用于远端UE和中继UE通信过程，如图11所示，该连接建立的方法可包括如下步骤：The present disclosure provides another method for establishing a connection. FIG11 is a flow chart of another method for establishing a connection provided by the present disclosure. The method is applied to a communication process between a remote UE and a relay UE. As shown in FIG11, the method for establishing a connection may include the following steps:
步骤S1101，远端UE向所述中继UE发送sidelink SRAP PDU，基于所述sidelink SRAPPDU对应的RLC实体进行所述中继UE与基站建立RRC连接的原因的指示。Step S1101, the remote UE sends a sidelink SRAP PDU to the relay UE, and indicates the reason for the relay UE to establish an RRC connection with the base station based on the RLC entity corresponding to the sidelink SRAPPDU.
当远端UE需要执行数据转发时，向中继UE发送sidelink SRAP PDU，基于所述sidelink SRAPPDU对应的RLC实体进行所述中继UE与基站建立RRC连接的原因的指示。When the remote UE needs to perform data forwarding, it sends a sidelink SRAP PDU to the relay UE, and indicates the reason for the relay UE to establish an RRC connection with the base station based on the RLC entity corresponding to the sidelink SRAPPDU.
在一些实施例中，本公开示例所述的RLC实体用于MP传输。In some embodiments, the RLC entity described in the examples of the present disclosure is used for MP transmission.
在实际应用中发送指示信息的方式不限于通过发送sidelink SRAP PDU消息的方式，还可以通过发送直连sidelink RRC消息的方式，具体本公开实施例不进行限定。In actual applications, the method of sending indication information is not limited to sending a sidelink SRAP PDU message, but may also be sent by sending a direct sidelink RRC message, which is not limited in the specific embodiments of the present disclosure.
步骤S1102，中继UE接收所述远端UE发送的sidelinkSRAPPDU。Step S1102: The relay UE receives the sidelink SR APP DU sent by the remote UE.
中继UE接收远端UE发送的直连sidelinkSRAPPDU，使得处于空闲态或非激活态的中继UE触发恢复连接过程或触发连接建立过程。The relay UE receives the direct connection sidelink SR APPDU sent by the remote UE, so that the relay UE in an idle state or an inactive state triggers a connection recovery process or a connection establishment process.
步骤S1103，所述RLC实体为第二RLC实体，将第二原因设置为所述中继UE与基站建立RRC连接的原因。Step S1103: The RLC entity is a second RLC entity, and the second reason is set as the reason for the relay UE to establish an RRC connection with the base station.
中继UE基于步骤1102获取SRAPPDU后，解析设置SRAPPDU对应的RLC实体为第二RLC实体，中继UE将第二原因设置为所述中继UE与基站建立RRC连接的原因。After the relay UE obtains the SRAPPDU based on step 1102, it parses and sets the RLC entity corresponding to the SRAPPDU as the second RLC entity, and the relay UE sets the second reason as the reason for the relay UE to establish an RRC connection with the base station.
所述第二原因为以下任一种：用户终结的接入mt-Access、用户发起的信令mo-Signalling、用户发起的数据mo-Data、用户发起的语音mo-VoiceCall、用户发起的视频电话mo-VideoCall、用户发起的短消息mo-SMS。相较于第一原因，第二原因不能设置为紧急呼叫(emergency)，高优先级接入(highPriorityAccess)，具有优先级的多媒体服务优先接入(mps-PriorityAccess)，专用服务优先接入(mcs-PriorityAccess)。The second reason is any one of the following: mt-Access terminated by user, mo-Signalling initiated by user, mo-Data initiated by user, mo-VoiceCall initiated by user, mo-VideoCall initiated by user, mo-SMS initiated by user. Compared with the first reason, the second reason cannot be set to emergency call (emergency), high priority access (highPriorityAccess), priority multimedia service access (mps-PriorityAccess), and mcs-PriorityAccess.
由远端UE向中继UE发送sidelink SRAP PDU，基于sidelink SRAPPDU对应的RLC实体进行中继UE与基站建立RRC连接的原因的指示，中继UE接收远端UE发送的sidelinkSRAPPDU，在设置RLC实体为第二RLC实体后，中继UE将第二原因设置为中继UE与基站建立RRC连接的原因。从而使得中继UE可以合理的设置建立连接的原因或恢复连接的原因，避免MP添加失败。The remote UE sends a sidelink SRAP PDU to the relay UE, and the RLC entity corresponding to the sidelink SRAPPDU indicates the reason for the relay UE to establish an RRC connection with the base station. The relay UE receives the sidelink SRAPPDU sent by the remote UE, and after setting the RLC entity as the second RLC entity, the relay UE sets the second reason as the reason for the relay UE to establish an RRC connection with the base station. This allows the relay UE to reasonably set the reason for establishing a connection or restoring a connection, avoiding MP addition failure.
请参见图12，图12为本公开实施例提供的一种连接建立的方法的流程示意图，该方法由网络设备执行。如图12所示，该方法可以包括但不限于如下步骤：Please refer to Figure 12, which is a flow chart of a method for establishing a connection provided by an embodiment of the present disclosure, and the method is executed by a network device. As shown in Figure 12, the method may include but is not limited to the following steps:
步骤S1201，网络设备向远端终端设备UE发送指示信息，以指示所述中继UE与基站建立连接的原因。Step S1201: The network device sends indication information to the remote terminal device UE to indicate the reason why the relay UE establishes a connection with the base station.
当远端UE有连接需求时，网络设备向远端UE发送指示信息，指示所述中继UE与基站建立连接的原因，触发中继UE的恢复连接过程或者触发连接建立过程。以便中继UE根据接 收到的指示信息完成连接原因的设置。When the remote UE has a connection requirement, the network device sends an indication message to the remote UE, indicating the reason why the relay UE establishes a connection with the base station, triggering the relay UE's connection recovery process or the connection establishment process, so that the relay UE completes the setting of the connection reason according to the received indication message.
在远端UE有连接需求时，由网络设备向远端终端设备UE发送指示信息，远端UE在将指示信息发送至中继UE，由中继UE根据网络设备的指示信息，设置中继UE与基站建立连接的原因，从而使得中继UE可以合理的设置建立连接的原因或恢复连接的原因，避免MP添加失败。When the remote UE has a connection requirement, the network device sends an indication message to the remote terminal device UE, and the remote UE sends the indication message to the relay UE. The relay UE sets the reason for establishing a connection between the relay UE and the base station according to the indication message of the network device, so that the relay UE can reasonably set the reason for establishing a connection or restoring a connection to avoid MP addition failure.
本公开实施例提供了另一种连接建立的方法，图13为本公开实施例提供的另一种连接建立的方法的流程示意图，该方法由网络设备执行，如图13所示，该连接建立的方法可包括如下步骤：The embodiment of the present disclosure provides another method for establishing a connection. FIG. 13 is a flow chart of another method for establishing a connection provided by the embodiment of the present disclosure. The method is executed by a network device. As shown in FIG. 13 , the method for establishing a connection may include the following steps:
步骤S1301，网络设备向所述远端UE发送在添加间接路径时设置的所述指示信息。Step S1301: The network device sends the indication information set when adding an indirect path to the remote UE.
在一些实施例中，网络设备向所述远端UE发送以下任一信息：第一无线链路控制层RLC标识和配置、第二RLC标识和配置、第一RLC标识与第一原因的对应关系。In some embodiments, the network device sends any one of the following information to the remote UE: a first radio link control layer RLC identifier and configuration, a second RLC identifier and configuration, and a correspondence between the first RLC identifier and the first cause.
在远端UE有连接需求时，由网络设备向所述远端UE发送在添加间接路径时设置的所述指示信息，远端UE在将指示信息发送至中继UE，由中继UE根据网络设备的指示信息，设置中继UE与基站建立连接的原因，从而使得中继UE可以合理的设置建立连接的原因或恢复连接的原因，避免MP添加失败。When the remote UE has a connection requirement, the network device sends the indication information set when adding an indirect path to the remote UE, and the remote UE sends the indication information to the relay UE. The relay UE sets the reason for establishing a connection between the relay UE and the base station according to the indication information of the network device, so that the relay UE can reasonably set the reason for establishing the connection or the reason for restoring the connection to avoid MP addition failure.
与上述图2至图13实施例提供的连接建立的方法相对应，本公开还提供一种丢包处理装置，由于本公开实施例提供连接建立的装置与上述图2至图13实施例提供的连接建立的方法相对应，因此在连接建立的方法的实施方式也适用于本公开实施例提供的连接建立的装置，在本公开实施例中不再详细描述。Corresponding to the method for establishing a connection provided in the embodiments of Figures 2 to 13 above, the present disclosure also provides a packet loss processing device. Since the device for establishing a connection provided in the embodiments of the present disclosure corresponds to the method for establishing a connection provided in the embodiments of Figures 2 to 13 above, the implementation method of the method for establishing a connection is also applicable to the device for establishing a connection provided in the embodiments of the present disclosure, and will not be described in detail in the embodiments of the present disclosure.
图14为本公开实施例所提供的一种连接建立的装置的结构示意图。所述装置设置于中继终端设备UE，如图14所示，所述装置包括：FIG14 is a schematic diagram of the structure of a device for establishing a connection provided by an embodiment of the present disclosure. The device is arranged in a relay terminal device UE, as shown in FIG14 , and the device includes:
接收模块141，用于接收远端UE发送的指示信息；The receiving module 141 is used to receive the indication information sent by the remote UE;
处理模块142，用于根据所述指示信息设置原因，所述原因包括以下中的至少一项：所述中继UE与基站建立连接的原因、所述中继UE与基站恢复连接的原因。The processing module 142 is used to set a reason according to the indication information, where the reason includes at least one of the following: a reason why the relay UE establishes a connection with the base station, and a reason why the relay UE restores a connection with the base station.
由中继UE在接收到远端UE发送的指示信息，并根据该指示信息设置中继UE与基站建立连接的原因，从而使得中继UE可以合理的设置建立连接的原因或恢复连接的原因，避免MP添加失败。The relay UE receives the indication information sent by the remote UE and sets the reason for the relay UE to establish a connection with the base station according to the indication information, so that the relay UE can reasonably set the reason for establishing the connection or the reason for restoring the connection to avoid MP addition failure.
在一种实现方式中，所述原因包括：In one implementation, the reasons include:
响应于所述中继UE处于空闲状态，所述中继UE与基站建立无线资源控制RRC连接的原因为所述中继UE与所述基站连接建立的原因；In response to the relay UE being in an idle state, the reason for the relay UE to establish a radio resource control (RRC) connection with the base station is the reason for establishing a connection between the relay UE and the base station;
响应于所述中继UE处于非激活状态，所述中继UE与基站建立RRC连接的原因为所述中继UE与所述基站恢复连接的原因。In response to the relay UE being in an inactive state, the reason for the relay UE to establish the RRC connection with the base station is the reason for the relay UE to restore the connection with the base station.
在一种实现方式中，如图15所示，所述接收模块141，还用于接收所述远端UE发送的直连sidelink RRC消息，所述sidelink RRC消息中携带所述指示信息；In one implementation, as shown in FIG15 , the receiving module 141 is further configured to receive a direct sidelink RRC message sent by the remote UE, wherein the sidelink RRC message carries the indication information;
所述处理模块142，还用于将所述中继UE与所述基站建立RRC连接的原因设置为所述指示信息指示的原因。The processing module 142 is further configured to set the reason for the relay UE to establish an RRC connection with the base station to the reason indicated by the indication information.
在一种实现方式中，如图15所示，所述接收模块141，还用于接收所述远端UE发送的sidelink中继适配协议SRAP数据单元PDU；In one implementation, as shown in FIG15 , the receiving module 141 is further configured to receive a sidelink relay adaptation protocol SRAP data unit PDU sent by the remote UE;
所述处理模块142，还用于根据所述SRAP PDU对应的无线链路控制层RLC实体设置所述中继UE与基站建立RRC连接的原因。The processing module 142 is also used to set the reason for the relay UE to establish an RRC connection with the base station according to the radio link control layer RLC entity corresponding to the SRAP PDU.
在一种实现方式中，如图15所示，所述处理模块142，还用于所述RLC实体为第一RLC实体，将第一原因设置为所述中继UE与基站建立RRC连接的原因。In one implementation, as shown in FIG. 15 , the processing module 142 is further configured to, when the RLC entity is a first RLC entity, set the first cause as a cause for the relay UE to establish an RRC connection with the base station.
在一种实现方式中，所述第一原因为以下任一种：In one implementation, the first reason is any one of the following:
紧急呼叫emergency、高优先级接入highPriorityAccess、用户终结的接入mt-Access、用户发起的信令mo-Signalling、用户发起的数据mo-Data、用户发起的语音mo-VoiceCall、用户发起的视频电话mo-VideoCall、用户发起的短消息mo-SMS、具有优先级的多媒体服务优先接入mps-PriorityAccess、专用服务优先接入mcs-PriorityAccess。Emergency call emergency, high priority access highPriorityAccess, user terminated access mt-Access, user initiated signaling mo-Signalling, user initiated data mo-Data, user initiated voice mo-VoiceCall, user initiated video call mo-VideoCall, user initiated short message mo-SMS, priority multimedia service priority access mps-PriorityAccess, dedicated service priority access mcs-PriorityAccess.
在一种实现方式中，如图15所示，所述装置还包括：In one implementation, as shown in FIG15 , the apparatus further includes:
第一获取模块143，用于获取所述第一RLC标识与所述第一原因的对应关系。The first acquisition module 143 is used to acquire the correspondence between the first RLC identifier and the first cause.
在一种实现方式中，所述第一获取模块143，还用于：In one implementation, the first acquisition module 143 is further configured to:
获取所述网络设备配置的所述第一RLC标识与所述第一原因的对应关系；Acquire a correspondence between the first RLC identifier configured by the network device and the first cause;
或者接收所述远端UE发送的所述第一RLC标识与所述第一原因的对应关系；or receiving a correspondence between the first RLC identifier and the first cause sent by the remote UE;
或者根据标准规定获取所述第一RLC标识与所述第一原因的对应关系。Or obtain the correspondence between the first RLC identifier and the first cause according to standard regulations.
在一种实现方式中，所述处理模块142，还用于所述RLC实体为第二RLC实体，将第二原因设置为所述中继UE与基站建立RRC连接的原因。In an implementation manner, the processing module 142 is further configured to, when the RLC entity is a second RLC entity, set the second cause as a cause for the relay UE to establish an RRC connection with the base station.
在一种实现方式中，所述第二原因为以下任一种：In one implementation, the second reason is any one of the following:
用户终结的接入mt-Access、用户发起的信令mo-Signalling、用户发起的数据mo-Data、用户发起的语音mo-VoiceCall、用户发起的视频电话mo-VideoCall、用户发起的短消息mo-SMS。User-terminated access mt-Access, user-initiated signaling mo-Signalling, user-initiated data mo-Data, user-initiated voice mo-VoiceCall, user-initiated video call mo-VideoCall, user-initiated short message mo-SMS.
在一种实现方式中，如图15所示，所述装置还包括：In one implementation, as shown in FIG15 , the apparatus further includes:
第二获取模块144，用于获取第一RLC或第二RLC的标识以及配置。The second acquisition module 144 is configured to acquire the identifier and configuration of the first RLC or the second RLC.
在一种实现方式中，所述第二获取模块，还用于：In one implementation, the second acquisition module is further configured to:
根据标准规定获取第一RLC或第二RLC的标识以及配置；Obtaining an identification and configuration of the first RLC or the second RLC according to standard provisions;
或者接收网络设备发送的***信息，所述***信息携带所述第一RLC或第二RLC的标识以及配置。Or receive system information sent by a network device, where the system information carries an identifier and a configuration of the first RLC or the second RLC.
或者接收远端UE发送的RRC消息，所述RRC消息携带所述第一RLC或第二RLC的标识以及配置。Or receive an RRC message sent by a remote UE, where the RRC message carries an identifier and a configuration of the first RLC or the second RLC.
在一种实现方式中，如图15所示，所述装置还包括：In one implementation, as shown in FIG15 , the apparatus further includes:
建立模块145，用于根据所述第一RLC或第二RLC的标识以及配置建立对应的第一RLC实体或第二RLC实体。The establishing module 145 is used to establish the corresponding first RLC entity or second RLC entity according to the identification and configuration of the first RLC or the second RLC.
图16为本公开实施例所提供的另一种连接建立的装置的结构示意图。本公开实施例提供一种连接建立的装置，所述装置设置于远终端设备UE，所述装置包括：FIG16 is a schematic diagram of the structure of another apparatus for establishing a connection provided by an embodiment of the present disclosure. An embodiment of the present disclosure provides an apparatus for establishing a connection, the apparatus being arranged in a remote terminal device UE, the apparatus comprising:
发送模块161，用于向中继UE发送指示信息，以指示所述中继UE与基站建立连接的原 因。The sending module 161 is used to send indication information to the relay UE to indicate the reason why the relay UE establishes a connection with the base station.
在一种实现方式中，所述发送模块161，还用于向所述中继UE发送直连sidelink无线资源控制RRC消息，所述sidelink RRC消息中携带所述指示信息。In one implementation, the sending module 161 is also used to send a direct sidelink radio resource control RRC message to the relay UE, and the sidelink RRC message carries the indication information.
在远端UE有连接需求时，向中继UE发送指示信息，由中继UE根据远端UE发送的指示信息，设置中继UE与基站建立连接的原因，从而使得中继UE可以合理的设置建立连接的原因或恢复连接的原因，避免MP添加失败。When the remote UE has a connection requirement, an indication message is sent to the relay UE, and the relay UE sets the reason for establishing a connection between the relay UE and the base station according to the indication message sent by the remote UE, so that the relay UE can reasonably set the reason for establishing the connection or the reason for restoring the connection to avoid MP addition failure.
在一种实现方式中，所述装置还包括：In one implementation, the device further includes:
处理模块162，用于设置指示信息，其中，所述设置指示信息包括以下中的至少一项：The processing module 162 is configured to set indication information, wherein the setting indication information includes at least one of the following:
根据触发连接建立的业务类型设置所述指示信息；通过接收网络设备发送的所述指示信息设置所述指示信息。The indication information is set according to the service type that triggers the connection establishment; and the indication information is set by receiving the indication information sent by the network device.
在一种实现方式中，所述发送模块161，还用于向所述中继UE发送sidelink中继适配协议SRAP数据单元PDU，基于所述sidelink SRAP PDU对应的无线链路控制层RLC实体进行所述中继UE与基站建立RRC连接的原因的指示。In one implementation, the sending module 161 is also used to send a sidelink relay adaptation protocol SRAP data unit PDU to the relay UE, and indicate the reason for the relay UE to establish an RRC connection with the base station based on the radio link control layer RLC entity corresponding to the sidelink SRAP PDU.
在一种实现方式中，所述装置还包括：In one implementation, the device further includes:
所述发送模块161，还用于向所述中继UE发送RRC消息，所述RRC消息携带所述第一RLC或第二RLC的标识以及配置。The sending module 161 is further configured to send an RRC message to the relay UE, where the RRC message carries an identifier and a configuration of the first RLC or the second RLC.
在一种实现方式中，所述装置还包括：In one implementation, the device further includes:
所述发送模块161，还用于向所述中继UE发送第一RLC标识与第一原因的对应关系。The sending module 161 is further configured to send the correspondence between the first RLC identifier and the first cause to the relay UE.
在一种实现方式中，所述装置还包括：In one implementation, the device further includes:
接收模块163，用于接收网络设备发送的以下任一信息：The receiving module 163 is used to receive any of the following information sent by the network device:
第一RLC标识和配置、第二RLC标识和配置、第一RLC标识与第一原因的对应关系。The correspondence between the first RLC identifier and configuration, the second RLC identifier and configuration, the first RLC identifier and the first cause.
在一种实现方式中，所述第一原因为以下任一种：In one implementation, the first reason is any one of the following:
紧急呼叫emergency、高优先级接入highPriorityAccess、用户终结的接入mt-Access、用户发起的信令mo-Signalling、用户发起的数据mo-Data、用户发起的语音mo-VoiceCall、用户发起的视频电话mo-VideoCall、用户发起的短消息mo-SMS、具有优先级的多媒体服务优先接入mps-PriorityAccess、专用服务优先接入mcs-PriorityAccess。Emergency call emergency, high priority access highPriorityAccess, user terminated access mt-Access, user initiated signaling mo-Signalling, user initiated data mo-Data, user initiated voice mo-VoiceCall, user initiated video call mo-VideoCall, user initiated short message mo-SMS, priority multimedia service priority access mps-PriorityAccess, dedicated service priority access mcs-PriorityAccess.
图17为本公开实施例所提供的另一种连接建立的装置的结构示意图，本公开实施例提供一种连接建立的装置，所述装置由网络设备执行，所述装置包括：FIG. 17 is a schematic diagram of the structure of another apparatus for establishing a connection provided by an embodiment of the present disclosure. An embodiment of the present disclosure provides an apparatus for establishing a connection, the apparatus being executed by a network device, and the apparatus comprising:
发送模块171，用于向远端终端设备UE发送指示信息，以指示所述中继UE与基站建立连接的原因。The sending module 171 is used to send indication information to the remote terminal device UE to indicate the reason why the relay UE establishes a connection with the base station.
在远端UE有连接需求时，由网络设备向远端终端设备UE发送指示信息，远端UE在将指示信息发送至中继UE，由中继UE根据网络设备的指示信息，设置中继UE与基站建立连接的原因，从而使得中继UE可以合理的设置建立连接的原因或恢复连接的原因，避免MP添加失败。When the remote UE has a connection requirement, the network device sends an indication message to the remote terminal device UE, and the remote UE sends the indication message to the relay UE. The relay UE sets the reason for establishing a connection between the relay UE and the base station according to the indication message of the network device, so that the relay UE can reasonably set the reason for establishing a connection or restoring a connection to avoid MP addition failure.
在一种实现方式中，所述发送模块171，还用于向所述远端UE发送在添加间接路径时设置的所述指示信息。In an implementation manner, the sending module 171 is further configured to send the indication information set when adding an indirect path to the remote UE.
在一种实现方式中，所述装置还包括：In one implementation, the device further includes:
所述发送模块171，还用于向所述远端UE发送以下任一信息：The sending module 171 is further configured to send any of the following information to the remote UE:
第一无线链路控制层RLC标识和配置、第二RLC标识和配置、第一RLC标识与第一原因的对应关系。The correspondence between the first radio link control layer RLC identifier and configuration, the second RLC identifier and configuration, the first RLC identifier and the first cause.
请参见图18，图18为本公开实施例提供的另一种通信装置的结构示意图。图18中，该通信装置1800可以是网络设备，也可以是终端设备，也可以是支持网络设备实现上述方法的芯片、芯片***、或处理器等，还可以是支持终端设备实现上述方法的芯片、芯片***、或处理器等。该装置可用于实现上述方法实施例中描述的方法，具体可以参见上述方法实施例中的说明。Please refer to Figure 18, which is a schematic diagram of the structure of another communication device provided in an embodiment of the present disclosure. In Figure 18, the communication device 1800 can be a network device, or a terminal device, or a chip, a chip system, or a processor that supports the network device to implement the above method, or a chip, a chip system, or a processor that supports the terminal device to implement the above method. The device can be used to implement the method described in the above method embodiment, and the details can be referred to the description in the above method embodiment.
通信装置1800可以包括一个或多个处理器1801。处理器1801可以是通用处理器或者专用处理器等。例如可以是基带处理器或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理，中央处理器可以用于对通信装置(如，基站、基带芯片，终端设备、终端设备芯片，DU或CU等)进行控制，执行计算机程序，处理计算机程序的数据。The communication device 1800 may include one or more processors 1801. The processor 1801 may be a general-purpose processor or a dedicated processor, etc. For example, it may be a baseband processor or a central processing unit. The baseband processor may be used to process the communication protocol and communication data, and the central processing unit may be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute a computer program, and process the data of the computer program.
可选的，通信装置1800中还可以包括一个或多个存储器1802，其上可以存有计算机程序1804，处理器1801执行所述计算机程序1804，以使得通信装置1800执行上述方法实施例中描述的方法。可选的，所述存储器1802中还可以存储有数据。通信装置1800和存储器1802可以单独设置，也可以集成在一起。Optionally, the communication device 1800 may further include one or more memories 1802, on which a computer program 1804 may be stored, and the processor 1801 executes the computer program 1804 so that the communication device 1800 performs the method described in the above method embodiment. Optionally, data may also be stored in the memory 1802. The communication device 1800 and the memory 1802 may be provided separately or integrated together.
可选的，通信装置1800还可以包括收发器1805、天线1806。收发器1805可以称为收发单元、收发机、或收发电路等，用于实现收发功能。收发器1805可以包括接收器和发送器，接收器可以称为接收机或接收电路等，用于实现接收功能；发送器可以称为发送机或发送电路等，用于实现发送功能。Optionally, the communication device 1800 may further include a transceiver 1805 and an antenna 1806. The transceiver 1805 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, etc., and is used to implement a transceiver function. The transceiver 1805 may include a receiver and a transmitter, the receiver may be referred to as a receiver or a receiving circuit, etc., and is used to implement a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., and is used to implement a transmitting function.
可选的，通信装置1800中还可以包括一个或多个接口电路1807。接口电路1807用于接收代码指令并传输至处理器1801。处理器1801运行所述代码指令以使通信装置1800执行上述方法实施例中描述的方法。Optionally, the communication device 1800 may further include one or more interface circuits 1807. The interface circuit 1807 is used to receive code instructions and transmit them to the processor 1801. The processor 1801 runs the code instructions to enable the communication device 1800 to execute the method described in the above method embodiment.
通信装置1800为中继UE：收发器1805用于执行图2中的步骤201等步骤。The communication device 1800 is a relay UE: the transceiver 1805 is used to execute steps such as step 201 in FIG. 2 .
通信装置1800为远端UE：收发器1805用于执行图4中的步骤401等步骤；The communication device 1800 is a remote UE: the transceiver 1805 is used to perform steps 401 and other steps in FIG. 4 ;
通信装置1800为网络设备：收发器1805用于执行图12中的步骤1201等步骤。The communication device 1800 is a network device: the transceiver 1805 is used to execute steps such as step 1201 in Figure 12.
在一种实现方式中，处理器1801中可以包括用于实现接收和发送功能的收发器。例如该收发器可以是收发电路，或者是接口，或者是接口电路。用于实现接收和发送功能的收发电路、接口或接口电路可以是分开的，也可以集成在一起。上述收发电路、接口或接口电路可以用于代码/数据的读写，或者，上述收发电路、接口或接口电路可以用于信号的传输或传递。In one implementation, the processor 1801 may include a transceiver for implementing the receiving and sending functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing the receiving and sending functions may be separate or integrated. The above-mentioned transceiver circuit, interface, or interface circuit may be used for reading and writing code/data, or the above-mentioned transceiver circuit, interface, or interface circuit may be used for transmitting or delivering signals.
在一种实现方式中，处理器1801可以存有计算机程序1803，计算机程序1803在处理器1801上运行，可使得通信装置1800执行上述方法实施例中描述的方法。计算机程序1803可能固化在处理器1801中，该种情况下，处理器1801可能由硬件实现。In one implementation, the processor 1801 may store a computer program 1803, which runs on the processor 1801 and enables the communication device 1800 to perform the method described in the above method embodiment. The computer program 1803 may be fixed in the processor 1801, in which case the processor 1801 may be implemented by hardware.
在一种实现方式中，通信装置1800可以包括电路，所述电路可以实现前述方法实施例中发送或接收或者通信的功能。本公开中描述的处理器和收发器可实现在集成电路(integrated  circuit，IC)、模拟IC、射频集成电路RFIC、混合信号IC、专用集成电路(application specific integrated circuit，ASIC)、印刷电路板(printed circuit board，PCB)、电子设备等上。该处理器和收发器也可以用各种IC工艺技术来制造，例如互补金属氧化物半导体(complementary metal oxide semiconductor，CMOS)、N型金属氧化物半导体(nMetal-oxide-semiconductor，NMOS)、P型金属氧化物半导体(positive channel metal oxide semiconductor，PMOS)、双极结型晶体管(bipolar junction transistor，BJT)、双极CMOS(BiCMOS)、硅锗(SiGe)、砷化镓(GaAs)等。In one implementation, the communication device 1800 may include a circuit that can implement the functions of sending or receiving or communicating in the aforementioned method embodiments. The processor and transceiver described in the present disclosure may be implemented in an integrated circuit (IC), an analog IC, a radio frequency integrated circuit RFIC, a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc. The processor and transceiver may also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
以上实施例描述中的通信装置可以是网络设备，或者终端设备，但本公开中描述的通信装置的范围并不限于此，而且通信装置的结构可以不受图18的限制。通信装置可以是独立的设备或者可以是较大设备的一部分。例如所述通信装置可以是：The communication device described in the above embodiments may be a network device or a terminal device, but the scope of the communication device described in the present disclosure is not limited thereto, and the structure of the communication device may not be limited by FIG. 18. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be:
(1)独立的集成电路IC，或芯片，或，芯片***或子***；(1) Independent integrated circuit IC, or chip, or chip system or subsystem;
(2)具有一个或多个IC的集合，可选的，该IC集合也可以包括用于存储数据，计算机程序的存储部件；(2) having a set of one or more ICs, and optionally, the IC set may also include a storage component for storing data and computer programs;
(3)ASIC，例如调制解调器(Modem)；(3) ASIC, such as modem;
(4)可嵌入在其他设备内的模块；(4) Modules that can be embedded in other devices;
(5)接收机、终端设备、智能终端设备、蜂窝电话、无线设备、手持机、移动单元、车载设备、网络设备、云设备、人工智能设备等等；(5) Receivers, terminal devices, intelligent terminal devices, cellular phones, wireless devices, handheld devices, mobile units, vehicle-mounted devices, network devices, cloud devices, artificial intelligence devices, etc.;
(6)其他等等。(6)Others
对于通信装置可以是芯片或芯片***的情况，可参见图19所示的芯片的结构示意图。图19所示的芯片1900包括处理器1901和接口1903。其中，处理器1901的数量可以是一个或多个，接口1903的数量可以是多个。For the case where the communication device can be a chip or a chip system, please refer to the schematic diagram of the chip structure shown in Figure 19. The chip 1900 shown in Figure 19 includes a processor 1901 and an interface 1903. The number of processors 1901 can be one or more, and the number of interfaces 1903 can be multiple.
对于芯片用于实现本公开实施例中中继UE的功能的情况：For the case where the chip is used to implement the function of relaying UE in the embodiment of the present disclosure:
接口1903，用于执行图2中的步骤201；图4中的步骤402等。 Interface 1903 is used to execute step 201 in FIG. 2 , step 402 in FIG. 4 , etc.
对于芯片用于实现本公开实施例中远端UE的功能的情况：For the case where the chip is used to implement the functions of the remote UE in the embodiments of the present disclosure:
接口1903，用于执行图3中的步骤301，图4中的步骤401等。 Interface 1903 is used to execute step 301 in FIG. 3 , step 401 in FIG. 4 , etc.
可选的，芯片1900还包括存储器1902，存储器1902用于存储必要的计算机程序和数据。Optionally, the chip 1900 further includes a memory 1902, and the memory 1902 is used to store necessary computer programs and data.
本领域技术人员还可以了解到本公开实施例列出的各种说明性逻辑块(illustrative logical block)和步骤(step)可以通过电子硬件、电脑软件，或两者的结合进行实现。这样的功能是通过硬件还是软件来实现取决于特定的应用和整个***的设计要求。本领域技术人员可以对于每种特定的应用，可以使用各种方法实现所述的功能，但这种实现不应被理解为超出本公开实施例保护的范围。Those skilled in the art may also understand that the various illustrative logical blocks and steps listed in the embodiments of the present disclosure may be implemented by electronic hardware, computer software, or a combination of the two. Whether such functions are implemented by hardware or software depends on the specific application and the design requirements of the entire system. Those skilled in the art may use various methods to implement the functions described for each specific application, but such implementation should not be understood as exceeding the scope of protection of the embodiments of the present disclosure.
本公开还提供一种可读存储介质，其上存储有指令，该指令被计算机执行时实现上述任一方法实施例的功能。The present disclosure also provides a readable storage medium having instructions stored thereon, which implement the functions of any of the above method embodiments when executed by a computer.
本公开还提供一种计算机程序产品，该计算机程序产品被计算机执行时实现上述任一方法实施例的功能。The present disclosure also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使 用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机程序。在计算机上加载和执行所述计算机程序时，全部或部分地产生按照本公开实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机程序可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机程序可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，高密度数字视频光盘(digital video disc，DVD))、或者半导体介质(例如，固态硬盘(solid state disk，SSD))等。In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, the process or function described in the embodiment of the present disclosure is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer program can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (DVD)), or a semiconductor medium (e.g., a solid state disk (SSD)), etc.
本领域普通技术人员可以理解：本公开中涉及的第一、第二等各种数字编号仅为描述方便进行的区分，并不用来限制本公开实施例的范围，也表示先后顺序。Those skilled in the art can understand that the various numerical numbers such as first and second involved in the present disclosure are only used for the convenience of description and are not used to limit the scope of the embodiments of the present disclosure, but also indicate the order of precedence.
本公开中的至少一个还可以描述为一个或多个，多个可以是两个、三个、四个或者更多个，本公开不做限制。在本公开实施例中，对于一种技术特征，通过“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”等区分该种技术特征中的技术特征，该“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”描述的技术特征间无先后顺序或者大小顺序。At least one in the present disclosure may also be described as one or more, and a plurality may be two, three, four or more, which is not limited in the present disclosure. In the embodiments of the present disclosure, for a technical feature, the technical features in the technical feature are distinguished by "first", "second", "third", "A", "B", "C" and "D", etc., and there is no order of precedence or size between the technical features described by the "first", "second", "third", "A", "B", "C" and "D".
进一步可以理解的是，本公开中“多个”是指两个或两个以上，其它量词与之类似。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。It is further understood that in the present disclosure, "plurality" refers to two or more than two, and other quantifiers are similar thereto. "And/or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and/or B may represent: A exists alone, A and B exist at the same time, and B exists alone. The character "/" generally indicates that the associated objects before and after are in an "or" relationship. The singular forms "a", "the" and "the" are also intended to include plural forms, unless the context clearly indicates other meanings.
进一步可以理解的是，本公开中涉及到的“响应于”、“如果”、“如若”等词语的含义取决于语境以及实际使用的场景，如在此所使用的词语“如若”可以被解释成为“在……时”或“当……时”。It is further understood that the meanings of the words "in response to", "if", "such as" and the like involved in the present disclosure depend on the context and the actual usage scenarios. For example, the word "such as" used herein can be interpreted as "at..." or "when..."
本公开中各表所示的对应关系可以被配置，也可以是预定义的。各表中的信息的取值仅仅是举例，可以配置为其他值，本公开并不限定。在配置信息与各参数的对应关系时，并不一定要求必须配置各表中示意出的所有对应关系。例如，本公开中的表格中，某些行示出的对应关系也可以不配置。又例如，可以基于上述表格做适当的变形调整，例如，拆分，合并等等。上述各表中标题示出参数的名称也可以采用通信装置可理解的其他名称，其参数的取值或表示方式也可以通信装置可理解的其他取值或表示方式。上述各表在实现时，也可以采用其他的数据结构，例如可以采用数组、队列、容器、栈、线性表、指针、链表、树、图、结构体、类、堆、散列表或哈希表等。The corresponding relationships shown in the tables in the present disclosure can be configured or predefined. The values of the information in each table are only examples and can be configured as other values, which are not limited by the present disclosure. When configuring the corresponding relationship between the information and each parameter, it is not necessarily required to configure all the corresponding relationships illustrated in each table. For example, in the table in the present disclosure, the corresponding relationships shown in some rows may not be configured. For another example, appropriate deformation adjustments can be made based on the above table, such as splitting, merging, etc. The names of the parameters shown in the titles of the above tables can also use other names that can be understood by the communication device, and the values or representations of the parameters can also be other values or representations that can be understood by the communication device. When implementing the above tables, other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables.

Claims (29)

  1. 一种连接建立的方法，其特征在于，所述方法由中继终端设备UE执行，所述方法包括：A method for establishing a connection, characterized in that the method is performed by a relay terminal device UE, and the method comprises:
    接收远端UE发送的指示信息；Receiving indication information sent by a remote UE;
    根据所述指示信息设置原因，所述原因包括以下中的至少一项：所述中继UE与基站建立连接的原因、所述中继UE与基站恢复连接的原因。A reason is set according to the indication information, where the reason includes at least one of the following: a reason why the relay UE establishes a connection with the base station, and a reason why the relay UE resumes a connection with the base station.
  2. 根据权利要求1所述的方法，其特征在于，所述原因包括：The method according to claim 1, wherein the reasons include:
    响应于所述中继UE处于空闲状态，所述中继UE与基站建立无线资源控制RRC连接的原因为所述中继UE与所述基站连接建立的原因；In response to the relay UE being in an idle state, the reason for the relay UE to establish a radio resource control (RRC) connection with the base station is the reason for establishing a connection between the relay UE and the base station;
    响应于所述中继UE处于非激活状态，所述中继UE与基站建立RRC连接的原因为所述中继UE与所述基站恢复连接的原因。In response to the relay UE being in an inactive state, the reason for the relay UE to establish the RRC connection with the base station is the reason for the relay UE to resume the connection with the base station.
  3. 根据权利要求2所述的方法，其特征在于，The method according to claim 2, characterized in that
    所述接收远端UE发送的指示信息包括：接收所述远端UE发送的直连sidelink RRC消息，所述sidelink RRC消息中携带所述指示信息；并且其中The receiving of the indication information sent by the remote UE includes: receiving a direct sidelink RRC message sent by the remote UE, wherein the sidelink RRC message carries the indication information; and wherein
    所述根据所述指示信息设置原因包括：将所述中继UE与所述基站建立RRC连接的原因设置为所述指示信息指示的原因。The setting of the cause according to the indication information includes: setting the cause for the relay UE to establish an RRC connection with the base station as the cause indicated by the indication information.
  4. 根据权利要求2所述的方法，其特征在于，The method according to claim 2, characterized in that
    所述接收远端UE发送的指示信息包括：接收所述远端UE发送的sidelink中继适配协议SRAP数据单元PDU；并且其中The receiving of the indication information sent by the remote UE includes: receiving a sidelink relay adaptation protocol SRAP data unit PDU sent by the remote UE; and wherein
    所述根据所述指示信息设置原因包括：根据所述SRAPPDU对应的无线链路控制层RLC实体设置所述中继UE与基站建立RRC连接的原因。The setting of the cause according to the indication information includes: setting the cause of establishing the RRC connection between the relay UE and the base station according to a radio link control layer RLC entity corresponding to the SRAPPDU.
  5. 根据权利要求4所述的方法，其特征在于，所述根据SRAPPDU对应的RLC实体设置所述中继UE与基站建立RRC连接的原因包括：The method according to claim 4 is characterized in that the reason for setting the relay UE to establish an RRC connection with the base station according to the RLC entity corresponding to the SRAPPDU includes:
    所述RLC实体为第一RLC实体，将第一原因设置为所述中继UE与基站建立RRC连接的原因。The RLC entity is a first RLC entity, and the first cause is set as a cause for the relay UE to establish an RRC connection with a base station.
  6. 根据权利要求5所述的方法，其特征在于，所述第一原因为以下任一种：The method according to claim 5, characterized in that the first reason is any one of the following:
    紧急呼叫emergency、高优先级接入highPriorityAccess、用户终结的接入mt-Access、用户发起的信令mo-Signalling、用户发起的数据mo-Data、用户发起的语音mo-VoiceCall、用户发起的视频电话mo-VideoCall、用户发起的短消息mo-SMS、具有优先级的多媒体服务优先接入mps-PriorityAccess、专用服务优先接入mcs-PriorityAccess。Emergency call emergency, high priority access highPriorityAccess, user terminated access mt-Access, user initiated signaling mo-Signalling, user initiated data mo-Data, user initiated voice mo-VoiceCall, user initiated video call mo-VideoCall, user initiated short message mo-SMS, priority multimedia service priority access mps-PriorityAccess, dedicated service priority access mcs-PriorityAccess.
  7. 根据权利要求6所述的方法，其特征在于，所述方法还包括：The method according to claim 6, characterized in that the method further comprises:
    获取所述第一RLC标识与所述第一原因的对应关系。Obtain a correspondence between the first RLC identifier and the first cause.
  8. 根据权利要求7所述的方法，其特征在于，所述获取所述第一RLC与所述第一原因的对应关系包括：The method according to claim 7, wherein acquiring the correspondence between the first RLC and the first cause comprises:
    获取所述网络设备配置的所述第一RLC标识与所述第一原因的对应关系；Acquire a correspondence between the first RLC identifier configured by the network device and the first cause;
    或者接收所述远端UE发送的所述第一RLC标识与所述第一原因的对应关系；or receiving a correspondence between the first RLC identifier and the first cause sent by the remote UE;
    或者根据标准规定获取所述第一RLC标识与所述第一原因的对应关系。Or obtain the correspondence between the first RLC identifier and the first cause according to standard regulations.
  9. 根据权利要求4所述的方法，其特征在于，所述根据SRAPPDU对应的RLC实体设置所述中继UE与基站建立RRC连接的原因包括：The method according to claim 4 is characterized in that the reason for setting the relay UE to establish an RRC connection with the base station according to the RLC entity corresponding to the SRAPPDU includes:
    所述RLC实体为第二RLC实体，将第二原因设置为所述中继UE与基站建立RRC连接的原因。The RLC entity is a second RLC entity, and the second reason is set as a reason for the relay UE to establish an RRC connection with the base station.
  10. 根据权利要求7所述的方法，其特征在于，所述第二原因为以下任一种：The method according to claim 7, characterized in that the second reason is any one of the following:
    用户终结的接入mt-Access、用户发起的信令mo-Signalling、用户发起的数据mo-Data、用户发起的语音mo-VoiceCall、用户发起的视频电话mo-VideoCall、用户发起的短消息mo-SMS。User-terminated access mt-Access, user-initiated signaling mo-Signalling, user-initiated data mo-Data, user-initiated voice mo-VoiceCall, user-initiated video call mo-VideoCall, user-initiated short message mo-SMS.
  11. 根据权利要求5-10中任一项所述的方法，其特征在于，所述方法还包括：The method according to any one of claims 5 to 10, characterized in that the method further comprises:
    获取第一RLC或第二RLC的标识以及配置。Obtain an identifier and a configuration of the first RLC or the second RLC.
  12. 根据权利要求11所述的方法，其特征在于，所述获取第一RLC或第二RLC的标识以及配置包括：The method according to claim 11, characterized in that the obtaining the identification and configuration of the first RLC or the second RLC comprises:
    根据标准规定获取第一RLC或第二RLC的标识以及配置；Obtaining an identification and configuration of the first RLC or the second RLC according to standard provisions;
    或者接收网络设备发送的***信息，所述***信息携带所述第一RLC或第二RLC的标识以及配置；or receiving system information sent by a network device, where the system information carries an identifier and a configuration of the first RLC or the second RLC;
    或者接收远端UE发送的RRC消息，所述RRC消息携带所述第一RLC或第二RLC的标识以及配置。Or receive an RRC message sent by a remote UE, where the RRC message carries an identifier and a configuration of the first RLC or the second RLC.
  13. 根据权利要求11或12所述的方法，其特征在于，所述方法还包括：The method according to claim 11 or 12, characterized in that the method further comprises:
    根据所述第一RLC或第二RLC的标识以及配置建立对应的第一RLC实体或第二RLC实体。A corresponding first RLC entity or second RLC entity is established according to the identifier and configuration of the first RLC or the second RLC.
  14. 一种连接建立的方法，其特征在于，所述方法由远端终端设备UE执行，所述方法包括：A method for establishing a connection, characterized in that the method is performed by a remote terminal device UE, and the method comprises:
    向中继UE发送指示信息，以指示所述中继UE与基站建立连接的原因。Send indication information to the relay UE to indicate the reason why the relay UE establishes a connection with the base station.
  15. 根据权利要求14所述的方法，其特征在于，所述向中继UE发送指示信息包括：The method according to claim 14, characterized in that the sending indication information to the relay UE comprises:
    向所述中继UE发送直连sidelink无线资源控制RRC消息，所述sidelink RRC消息中携带所述指示信息。A direct sidelink radio resource control RRC message is sent to the relay UE, wherein the sidelink RRC message carries the indication information.
  16. 根据权利要求15所述的方法，其特征在于，所述方法还包括：The method according to claim 15, characterized in that the method further comprises:
    设置指示信息，其中，所述设置指示信息包括以下中的至少一项：Setting instruction information, wherein the setting instruction information includes at least one of the following:
    根据触发连接建立的业务类型设置所述指示信息；Setting the indication information according to the service type that triggers the connection establishment;
    通过接收网络设备发送的所述指示信息设置所述指示信息。The indication information is set by receiving the indication information sent by the network device.
  17. 根据权利要求14所述的方法，其特征在于，所述向中继UE发送指示信息包括：The method according to claim 14, characterized in that the sending indication information to the relay UE comprises:
    向所述中继UE发送sidelink中继适配协议SRAP数据单元PDU，基于所述sidelink SRAPPDU对应的无线链路控制层RLC实体进行所述中继UE与基站建立RRC连接的原因的指示。A sidelink relay adaptation protocol SRAP data unit PDU is sent to the relay UE, and the radio link control layer RLC entity corresponding to the sidelink SRAPPDU indicates the reason for the relay UE to establish an RRC connection with the base station.
  18. 根据权利要求17所述的方法，其特征在于，所述方法还包括：The method according to claim 17, characterized in that the method further comprises:
    向所述中继UE发送RRC消息，所述RRC消息携带所述第一RLC或第二RLC的标识以及配置。An RRC message is sent to the relay UE, where the RRC message carries an identifier and a configuration of the first RLC or the second RLC.
  19. 根据权利要求18所述的方法，其特征在于，所述方法还包括：The method according to claim 18, characterized in that the method further comprises:
    向所述中继UE发送第一RLC标识与第一原因的对应关系。Sending a correspondence between the first RLC identifier and the first cause to the relay UE.
  20. 根据权利要求18或19所述的方法，其特征在于，所述方法还包括：The method according to claim 18 or 19, characterized in that the method further comprises:
    接收网络设备发送的以下任一信息：Receive any of the following information sent by network devices:
    第一RLC标识和配置、第二RLC标识和配置、第一RLC标识与第一原因的对应关系。The correspondence between the first RLC identifier and configuration, the second RLC identifier and configuration, the first RLC identifier and the first cause.
  21. 根据权利要求19所述的方法，其特征在于，所述第一原因为以下任一种：The method according to claim 19, wherein the first reason is any one of the following:
    紧急呼叫emergency、高优先级接入highPriorityAccess、用户终结的接入mt-Access、用户发起的信令mo-Signalling、用户发起的数据mo-Data、用户发起的语音mo-VoiceCall、用户发起的视频电话mo-VideoCall、用户发起的短消息mo-SMS、具有优先级的多媒体服务优先接入mps-PriorityAccess、专用服务优先接入mcs-PriorityAccess。Emergency call emergency, high priority access highPriorityAccess, user terminated access mt-Access, user initiated signaling mo-Signalling, user initiated data mo-Data, user initiated voice mo-VoiceCall, user initiated video call mo-VideoCall, user initiated short message mo-SMS, priority multimedia service priority access mps-PriorityAccess, dedicated service priority access mcs-PriorityAccess.
  22. 一种连接建立的方法，其特征在于，所述方法由网络设备执行，所述方法包括：A method for establishing a connection, characterized in that the method is performed by a network device, and the method comprises:
    向远端终端设备UE发送指示信息，以指示所述中继UE与基站建立连接的原因。Send indication information to the remote terminal device UE to indicate the reason why the relay UE establishes a connection with the base station.
  23. 根据权利要求22所述的方法，其特征在于，所述向远端UE发送指示信息包括：The method according to claim 22, wherein the sending indication information to the remote UE comprises:
    向所述远端UE发送在添加间接路径时设置的所述指示信息。The indication information set when adding the indirect path is sent to the remote UE.
  24. 根据权利要求23所述的方法，其特征在于，所述方法还包括：The method according to claim 23, characterized in that the method further comprises:
    向所述远端UE发送以下中的至少一个：Sending at least one of the following to the remote UE:
    第一无线链路控制层RLC标识和配置、第二RLC标识和配置、第一RLC标识与第一原因的对应关系。The correspondence between the first radio link control layer RLC identifier and configuration, the second RLC identifier and configuration, the first RLC identifier and the first cause.
  25. 一种连接建立的装置，其特征在于，所述装置设置于中继终端设备UE，所述装置包括：A device for establishing a connection, characterized in that the device is arranged in a relay terminal device UE, and the device comprises:
    接收模块，用于接收远端UE发送的指示信息；A receiving module, used for receiving indication information sent by a remote UE;
    处理模块，用于根据所述指示信息设置原因，所述原因包括以下中的至少一项：所述中继UE与基站建立连接的原因、所述中继UE与基站恢复连接的原因。A processing module is used to set a reason according to the indication information, where the reason includes at least one of the following: a reason why the relay UE establishes a connection with the base station, and a reason why the relay UE restores the connection with the base station.
  26. 一种连接建立的装置，其特征在于，所述装置设置于远终端设备UE，所述装置包括：A device for establishing a connection, characterized in that the device is arranged in a remote terminal device UE, and the device comprises:
    发送模块，用于向中继UE发送指示信息，以指示所述中继UE与基站建立连接的原因。The sending module is used to send indication information to the relay UE to indicate the reason why the relay UE establishes a connection with the base station.
  27. 一种连接建立的装置，其特征在于，所述装置由网络设备执行，所述装置包括：A device for establishing a connection, characterized in that the device is executed by a network device, and the device comprises:
    发送模块，用于向远端终端设备UE发送指示信息，以指示所述中继UE与基站建立连接的原因。The sending module is used to send indication information to the remote terminal device UE to indicate the reason why the relay UE establishes a connection with the base station.
  28. 一种通信装置，其特征在于，所述装置包括处理器和存储器，所述存储器中存储有计算机程序，所述处理器执行所述存储器中存储的计算机程序，以使所述装置执行如权利要求1至13中任一项所述的方法，或者执行如权利要求14至21中任一项所述的方法，或者执行如权利要求22至24中任一项所述的方法。A communication device, characterized in that the device comprises a processor and a memory, the memory stores a computer program, and the processor executes the computer program stored in the memory so that the device performs the method as described in any one of claims 1 to 13, or performs the method as described in any one of claims 14 to 21, or performs the method as described in any one of claims 22 to 24.
  29. 一种计算机可读存储介质，用于存储有指令，当所述指令被执行时，如权利要求1至13中任一项所述的方法，或者执行如权利要求14至21中任一项所述的方法，或者执行如权利要求22至24中任一项所述的方法。A computer-readable storage medium for storing instructions, which, when executed, performs the method according to any one of claims 1 to 13, or performs the method according to any one of claims 14 to 21, or performs the method according to any one of claims 22 to 24.
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