WO2024092828A1 - Procédé et appareil d'établissement de connexion - Google Patents

Procédé et appareil d'établissement de connexion 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
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English (en)
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 PCT/CN2022/130136 priority Critical patent/WO2024092828A1/fr
Priority to CN202280004292.9A priority patent/CN116034625A/zh
Publication of WO2024092828A1 publication Critical patent/WO2024092828A1/fr

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

Abstract

La présente divulgation concerne un procédé et un appareil d'établissement de connexion, qui peuvent être appliqués au domaine technique des communications. Le procédé comprend les étapes suivantes : un relais reçoit des informations d'indication envoyées par un UE distant ; et définit une cause selon les informations d'indication, la cause comprenant au moins l'un des éléments suivants : une cause d'établissement, par l'UE relais, d'une connexion avec une station de base et une cause de reprise, par l'UE relais, de la connexion avec la station de base. Un UE relais reçoit des informations d'indication envoyées par un UE distant, et, selon les informations d'indication, définit une cause pour l'UE relais pour établir une connexion avec une station de base, la cause comprenant au moins l'un des éléments suivants : la cause d'établissement, par l'UE relais, d'une connexion avec la station de base et une cause de reprise, par l'UE relais, de la connexion avec la station de base, de telle sorte que l'UE relais peut définir raisonnablement la cause d'établissement de connexion ou la cause de reprise de connexion, ce qui permet d'éviter un échec d'ajout de MP.
PCT/CN2022/130136 2022-11-04 2022-11-04 Procédé et appareil d'établissement de connexion WO2024092828A1 (fr)

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PCT/CN2022/130136 WO2024092828A1 (fr) 2022-11-04 2022-11-04 Procédé et appareil d'établissement de connexion
CN202280004292.9A CN116034625A (zh) 2022-11-04 2022-11-04 一种连接建立的方法及装置

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CN110178441A (zh) * 2017-01-09 2019-08-27 Lg 电子株式会社 无线通信系统中由具有与远程ue的连接的中继ue连接网络的方法及其装置
US20190268964A1 (en) * 2016-11-11 2019-08-29 Lg Electronics Inc. Method and apparatus for configuring rrc connection establishment cause for relay terminal in idle state in wireless communication system
CN114143871A (zh) * 2020-09-04 2022-03-04 华为技术有限公司 网络连接方法、网络去连接方法及通信装置
CN114390726A (zh) * 2020-10-20 2022-04-22 联发科技股份有限公司 用于从侧链路中继失败中恢复的装置和方法
WO2022206813A1 (fr) * 2021-03-31 2022-10-06 Telefonaktiebolaget Lm Ericsson (Publ) Procédés, ue, ue relais et nœud de réseau pour communication sur liaison latérale

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190268964A1 (en) * 2016-11-11 2019-08-29 Lg Electronics Inc. Method and apparatus for configuring rrc connection establishment cause for relay terminal in idle state in wireless communication system
CN110178441A (zh) * 2017-01-09 2019-08-27 Lg 电子株式会社 无线通信系统中由具有与远程ue的连接的中继ue连接网络的方法及其装置
CN114143871A (zh) * 2020-09-04 2022-03-04 华为技术有限公司 网络连接方法、网络去连接方法及通信装置
CN114390726A (zh) * 2020-10-20 2022-04-22 联发科技股份有限公司 用于从侧链路中继失败中恢复的装置和方法
WO2022206813A1 (fr) * 2021-03-31 2022-10-06 Telefonaktiebolaget Lm Ericsson (Publ) Procédés, ue, ue relais et nœud de réseau pour communication sur liaison latérale

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