RU2785091C1 - System, device and method for configuration of the carrier radio channel - Google Patents

Abstract

FIELD: communication technology.

SUBSTANCE: invention relates to the field of communication technologies. In the carrier radio channel configuration method, the first message from the first terminal is received through the second terminal, which contains the first configuration information of the carrier radio channel of the bypass communication line between the second terminal and the first terminal. The first configuration information contains information used to indicate that the operating mode of the radio link control level (RLC) of the bypass carrier radio channel is the mode with confirmation (AM), or contains information used to indicate that the operating mode of the RLC level of the bypass carrier radio channel is the mode without confirmation (UM), and an indication of the type of carrier channel, which is used to indicate the type of carrier radio channel of the bypass communication line. The carrier radio channel of the bypass communication line is installed or configured by means of the second terminal based on the first message. In this case, the method additionally contains a stage at which a third message is sent via a second terminal to a network device if the carrier radio channel of the bypass communication line is a bidirectional carrier radio channel. The third message contains information used to indicate the operating mode of the RLC level of the bypass carrier radio channel.

EFFECT: improving the highly reliable communication of the bypass communication line service.

12 cl, 22 dwg

Description

The field of technology to which the invention belongs

[0001] Embodiments of the present application relate to the field of communication technologies and, in particular, to an apparatus, system, and method for configuring a radio bearer.

State of the art

[0002] In a Long Term Evolution (LTE) system or a new radio (NR) system, a communication interface between a terminal and a base station may be referred to as a Uu interface, and a communication interface between terminals may be referred to as a PC5 interface. The PC5 interface is typically used in a scenario where devices can communicate directly, such as V2X or D2D. The communication link between terminals connected to the PC5 interface is called a bypass link (Sidelink). Through the PC5 interface, Radio Resource Control (RRC) data and signals can be transmitted between terminals by using a Sidelink Radio Bearer (SL RB) radio bearer.

[0003] When the terminal communicates with the base station via the Uu interface, the Radio Link Control (RLC) entity supports Acknowledged Mode (AM). Acknowledged mode requires the data receiver to return a status report at the RLC level to the data sender. The status report is used to indicate to the data sender which data was successfully received and which was not.

[0004] Currently, in the LTE system, the V2X service supports broadcasting. In other words, the sending terminal may send the service to the receiving terminal on the bypass link in a broadcast manner. In this case, the receiving terminal does not need to return an RLC status report to the sending terminal. Therefore, AM RLC is not supported in the LTE system. However, the NR PC5 interface supports the V2X service transmitted in a unicast manner, and the V2X service in NR requires higher reliability than the V2X service in LTE. Therefore, the question of how to improve the highly reliable communication of a V2X service is an actual problem to be solved.

The essence of the invention

[0005] Embodiments of the present application provide a radio bearer configuration method, apparatus, and system for improving the reliability of a bypass link service.

[0006] To solve the above problem, embodiments of the present application provide the following technical solutions:

[0007] According to a first aspect, an embodiment of the present application provides a method for configuring a bearer radio, including the following: The second terminal determines that the first bypass link radio bearer and the second bypass link radio bearer that are used during communication between the second terminal and the first terminal are interconnected with each other. The second terminal sends to the first terminal a first message that carries the first indication information. The first indication information is used to indicate that the first bypass link radio bearer is associated with the second bypass link radio bearer. The first bypass link radio bearer is used by the first terminal to send the first bypass link service data to the second terminal. The second bypass link radio bearer is used by the second terminal to send a first radio link control (RLC) status report for the first bypass link service data to the first terminal.

[0008] This embodiment of the present application provides a radio bearer configuration method. In the prior art, the first terminal is unaware that the first bypass link radio bearer is associated with the second bypass link radio bearer. Therefore, the first terminal cannot determine the bypass link service data on the bypass link radio bearer to which the RLC status report received by the first terminal corresponds, and the RLC status reports for various bypass link service data sent by the first terminal may conflict. with each other or may be misunderstood. Since the bypass link service data of the first terminal increases, the reliability of the bypass link communication cannot be guaranteed. In this embodiment of the present application, the second terminal determines that the first bypass link radio bearer and the second bypass link radio bearer that are used during communication between the second terminal and the first terminal are interconnected with each other, and sends the first indication information to the first terminal for indicating that the first bypass link radio bearer is associated with the second bypass link radio bearer, so that the first terminal determines to use the first bypass link radio bearer to send the first bypass link service data to the second terminal, and if the first terminal receives the first RLC status report on the second bypass link radio bearer, the first terminal can determine based on the above relationship that the first RLC status report is for the first bypass link service data on the first bypass link radio bearer to guarantee to assume that the bypass link radio bearer between the first terminal and the second terminal can support the AM transmission method at the RLC layer. In addition, the method in this embodiment helps the first terminal and the second terminal determine, based on the first RLC status report, whether to retransmit the data of the first bypass link service, thereby ensuring the transmission reliability of the bypass link service data.

[0009] In an exemplary embodiment, the second bypass link radio bearer is further used by the second terminal to send second bypass link service data to the first terminal. The first bypass link radio bearer is further used by the first terminal to send a second RLC status report for the second bypass link service data to the second terminal. Thus, the relationship relationship between the second bypass link radio bearer and the first bypass link radio bearer can be fully utilized.

[0010] In an exemplary embodiment, the first bypass link radio bearer and the second bypass link radio bearer are unidirectional bearers.

[0011] In an exemplary embodiment, the first bypass link radio bearer includes a first Packet Data Convergence Protocol (PDCP) entity, at least one first RLC entity, and at least one first logical channel. The radio link control (RLC) layer mode of operation of the first bypass link radio bearer is acknowledged mode (AM), and at least one first RLC entity is associated with at least one first logical channel. The second bypass link radio bearer includes a second PDCP entity, at least one second RLC entity, and at least one second logical channel. The RLC mode of operation of the second bypass link radio bearer is acknowledged mode (AM) and at least one second RLC entity is associated with at least one second logical channel.

[0012] In an exemplary embodiment, the method presented in this embodiment of the present application further includes the following: The second terminal receives a second message from the first terminal. The second message includes any one or more of the following information: a first bypass link radio bearer identifier, an identifier of at least one first logical channel, or quality of service (QoS) information associated with the first bypass link radio bearer. It should be understood that the second message is used to indicate to install, configure or update the second bypass link radio bearer. Thus, the second terminal can clearly identify the QoS information associated with the installed, configured, or updated second bypass link radio bearer.

[0013] In an exemplary embodiment, the method presented in this embodiment of the present application further includes the following: The second terminal sends to the network device a third message used to request to configure a second bypass link radio bearer, wherein the third message includes itself, at least the QoS information. The second terminal receives the fourth message from the network device. The fourth message includes QoS information and first configuration information that is related to the QoS information and is used to configure the second bypass link radio bearer. It should be understood that the first configuration information is configuration information which belongs to the second bypass link radio bearer and which is received by the second terminal from the network device. Thus, the network device can determine the QoS information to establish a second bypass link radio bearer.

[0014] In an exemplary embodiment, the fourth message further includes at least one of the following information: a second bypass link radio bearer identifier, an identifier of at least one second logical channel, and a first anchor relationship. The first anchor relationship includes an anchor relationship between the QoS information and the identifier of the second bypass link radio bearer and/or the anchor relationship between the QoS information and the identifier of at least one second logical channel. That the second terminal determines that the first bypass link radio bearer and the second bypass link radio bearer that are used during communication between the second terminal and the first terminal are interconnected with each other includes the following: The second terminal determines on based on the fourth message that the first bypass link radio bearer is interconnected with the second bypass link radio bearer. Thus, the second terminal may determine that the first bypass link radio bearer is associated with the second bypass link radio bearer.

[0015] In an exemplary embodiment, the third message further includes any one or more of the following information: a first bypass link radio bearer identifier or an identifier of at least one first logical channel. The fourth message further includes a second anchor relationship. The second anchor relationship includes an anchor relationship between the first bypass link radio bearer information and the second bypass link radio bearer information. That the second terminal determines that the first bypass link radio bearer and the second bypass link radio bearer that are used during communication between the second terminal and the first terminal are interconnected with each other includes the following: The second terminal determines on based on the second anchor relationship, that the first bypass link radio bearer is associated with the second bypass link radio bearer. Thus, the manner in which the second terminal determines that the first bypass link radio bearer is associated with the second bypass link radio bearer is flexible.

[0016] In an exemplary embodiment, that the second terminal determines that the first bypass link radio bearer and the second bypass link radio bearer that are used during communication between the second terminal and the first terminal are interconnected with each other includes: itself as follows: The second terminal determines, based on the second message and the preconfiguration information, that the first bypass link radio bearer is associated with the second bypass link radio bearer. The preconfiguration information includes at least QoS information and second configuration information associated with the QoS information. The second configuration information is used to configure the second bypass link radio bearer. It should be understood that the second configuration information is configuration information of the second bypass link radio bearer.

[0017] In an exemplary embodiment, the preconfiguration information further includes at least one of the following information: a second bypass link radio bearer identifier, an identifier of at least one second logical channel, and a third anchor relation. The third anchor relationship includes an anchor relationship between the QoS information and an identifier of the second bypass link radio bearer and/or an anchor relationship between the QoS information and the identifier of at least one second logical channel. That the second terminal determines, based on the second message and the preconfiguration information, that the first bypass link radio bearer is associated with the second bypass link radio bearer includes the following: The second terminal determines, based on the third anchor relation, that the first radio bearer the bypass link carrier is associated with the second bypass link carrier radio.

[0018] In an exemplary embodiment, the preconfiguration information further includes a fourth binding relation. The fourth anchor relationship includes an anchor relationship between the first bypass link radio bearer information and the second bypass link radio bearer information. That the second terminal determines, based on the second message and the preconfiguration information, that the first bypass link radio bearer is associated with the second bypass link radio bearer includes the following: The second terminal determines, based on the fourth anchor relation, that the first radio bearer the bypass link carrier is associated with the second bypass link carrier radio.

[0019] In an exemplary embodiment, the method provided in this embodiment of the present application further includes the following: The second terminal autonomously determines a second bypass link radio bearer identifier and/or an identifier of at least one second logical channel. It should be understood that if the second terminal autonomously determines the identity of the second bypass link radio bearer and/or the identity of at least one second logical channel, the second terminal can obtain QoS information of the second bypass link radio bearer from the network device, in other words, the network device. the device may not send the bypass link second radio bearer identifier and/or the at least one second logical channel identifier to the second terminal. Thus, if the second terminal determines that the QoS information of the second bypass link radio bearer is the same as the QoS information of the first bypass link radio bearer, the second terminal may determine that the first bypass link radio bearer is associated with the second terminal. bypass link carrier radio channel.

[0020] In an exemplary embodiment, that the first indication information is used to indicate that the first bypass link radio bearer is interconnected with the second bypass link radio bearer specifically includes any one or more of the following information: relationship bindings between information about the first radio bearer of the bypass link and information about the second radio bearer of the bypass link. Information about the first bypass link radio bearer includes an identifier of the first bypass link radio bearer and/or an identifier of at least one first logical channel in the first bypass link radio bearer. Information about the second bypass link radio bearer includes an identifier of at least one second logical channel in the second bypass link radio bearer and/or an identifier of the second bypass link radio bearer. Thus, the method of determining that the first bypass link radio bearer is associated with the second bypass link radio bearer is expanded.

[0021] In an exemplary embodiment, that the first indication information is used to indicate that the first bypass link radio bearer is interconnected with the second bypass link radio bearer, specifically includes the following: the first indication information includes a second radio bearer identifier bypass link carrier and/or identifier of at least one second logical channel. Thus, the first terminal may determine that the first bypass link radio bearer is associated with the second bypass link radio bearer.

[0022] In an exemplary embodiment, that the second terminal determines that the first bypass link radio bearer and the second bypass link radio bearer that are used during communication between the second terminal and the first terminal are interconnected with each other includes itself as follows: When the identifier of the second bypass link radio bearer is the same as the identifier of the first bypass link radio bearer and/or the identifier of at least one second logical channel is the same as the identifier of at least one first logical channel, the second terminal determines that the first bypass link radio bearer is associated with the second bypass link radio bearer. The third message further includes an identifier of the second bypass link radio bearer and/or an identifier of at least one second logical channel in the second bypass link radio bearer.

[0023] In an exemplary embodiment, the identifier of the second bypass link radio bearer is the same as the identifier of the first bypass link radio bearer and/or the identifier of at least one second logical channel is the same as the identifier of at least one first logical channel. The preconfiguration information further includes at least one of the following information: a second bypass link radio bearer identifier, an identifier of at least one second logical channel, and a fifth anchor relation. The fifth anchor relationship includes an anchor relationship between the QoS information and the identifier of the second bypass link radio bearer and/or an anchor relationship between the QoS information and the identifier of at least one second logical channel. That the second terminal determines that the first bypass link radio bearer and the second bypass link radio bearer that are used during communication between the second terminal and the first terminal are interconnected with each other includes the following: The second terminal determines on based on the fifth anchor relationship, that the first bypass link radio bearer is associated with the second bypass link radio bearer.

[0024] In an exemplary embodiment, the method presented in this embodiment of the present application further includes the following: The second terminal sends to the network device at least one of the following information: source address information of the second bypass link radio bearer, address information a recipient of the second bypass link radio bearer and indication information indicating that the RLC mode of the second bypass link radio bearer is the AM mode. The second terminal receives from the network device at least one of the following information: source address information of the second bypass link radio bearer and information of the destination address of the second bypass link radio bearer. Thus, the network device can determine the source address and the destination address that belong to the established bypass link second radio bearer and the RLC mode of the established bypass link second radio bearer.

[0025] In an exemplary embodiment, the method presented in this embodiment of the present application further includes the following: The second terminal sends to the first terminal at least one of the following information: source address information of the second bypass link radio bearer, address information a second bypass link radio bearer recipient; and third bypass link second radio bearer configuration information. The third configuration information belongs to the first configuration information or the second configuration information.

[0026] In an exemplary embodiment, the method presented in this embodiment of the present application further includes the following: The second terminal configures at least one first RLC entity in the first bypass link radio bearer of the second terminal and at least one second entity RLC in the second bypass link radio bearer of the second terminal so that they are interconnected with each other.

[0027] In an exemplary embodiment, the method presented in this embodiment of the present application further includes the following: At least one first RLC entity on the first bypass link radio bearer sends a first RLC status report and second indication information to the at least one second RLC entity on the second bypass link radio bearer. The second indication information is used to indicate that the first RLC status report is an RLC status report for the first bypass link service data received by the second terminal. Alternatively, at least one first RLC entity on the first bypass link radio bearer sends a second RLC status report and third indication information to at least one second RLC entity on the second bypass link radio bearer. The third indication information is used to indicate that the second RLC status report is an RLC status report that is for the second bypass link service data and is sent by the first terminal.

[0028] In an exemplary embodiment, the method presented in this embodiment of the present application further includes the following: The second terminal determines that the QoS flow associated with the first bypass link radio bearer or the second bypass link radio bearer, changes. The second terminal sends the fifth message to the first terminal or network device. The fifth message is used to indicate a change in the QoS flow associated with the first bypass link radio bearer or the second bypass link radio bearer. Since the second bypass link radio bearer is associated with the first bypass link radio bearer, when the QoS flow associated with the second bypass link radio bearer changes, the QoS flow over the first bypass link radio bearer also needs to be updated, so that the first terminal or network device can timely update the QoS flow on the first bypass link radio bearer or the second bypass link radio bearer.

[0029] In an exemplary embodiment, the second terminal determines that the QoS flow associated with the first bypass link radio bearer or the second bypass link radio bearer is changing includes the following: The second terminal receives a sixth message from the first terminal. The sixth message is used to indicate that the QoS flow associated with the first bypass link radio bearer is changing. The second terminal may autonomously increase or decrease the number of QoS flows associated with the first bypass link radio bearer. In addition, the first terminal can also autonomously increase or decrease the number of QoS flows associated with the first bypass link radio bearer. When the first terminal autonomously increases or decreases the number of QoS flows associated with the first bypass link radio bearer, the first terminal must notify the second terminal in a timely manner so that the second terminal can timely adjust the number of QoS flows associated with the second bypass link radio bearer.

[0030] According to a second aspect, an embodiment of the present application provides a radio bearer configuration method, including the following: A first terminal receives a first message from a second terminal. The first message includes first indication information used to indicate that the first bypass link radio bearer and the second bypass link radio bearer that are used during communication between the first terminal and the second terminal are interconnected with each other. The first bypass link radio bearer is used by the first terminal to send the first bypass link service data to the second terminal, and the second bypass link radio bearer is used by the second terminal to send the first radio link control (RLC) status report for the first bypass service data. communication lines to the first terminal. The first terminal determines, based on the first indication information, that the first RLC status report is an RLC status report for the first bypass link service data.

[0031] In an exemplary embodiment, the method further includes: the second bypass link radio bearer is further used by the second terminal to send second bypass link service data to the first terminal, and the first bypass link radio bearer is further used by the first terminal to send a second RLC status report for the second bypass link service data to the second terminal. The first terminal determines, based on the first indication information, to send a second RLC status report for the second bypass link service data by using the first bypass link radio bearer.

[0032] In an exemplary embodiment, the method presented in this embodiment of the present application further includes the following: The first terminal configures at least one first RLC entity on the first terminal's bypass link radio bearer and at least one second entity RLC on the second bypass link radio bearer of the first terminal so that they are interconnected with each other.

[0033] In an exemplary embodiment, the method presented in this embodiment of the present application further includes the following: The first terminal sends to the second terminal a second message including any one or more of the following information: bypass link first radio bearer identifier communication, an identifier of at least one first logical channel in the first bypass link radio bearer, or QoS information associated with the first bypass link radio bearer.

[0034] In an exemplary embodiment, that the first indication information is used to indicate that the first bypass link radio bearer is interconnected with the second bypass link radio bearer, specifically includes any one or more of the following information: an anchor relationship between information about the first bypass link radio bearer and information about the second bypass link radio bearer. The first bypass link radio bearer information includes any one or more of the following information: a first bypass link radio bearer identifier or an identifier of at least one first logical channel. The second bypass link radio bearer information includes any one or more of the following information: an identifier of at least one second logical channel or a second bypass link radio bearer identifier.

[0035] In an exemplary embodiment, that the first indication information is used to indicate that the first bypass link radio bearer is interconnected with the second bypass link radio bearer specifically includes: the first indication information includes a second radio bearer identifier bypass link carrier and/or identifier of at least one second logical channel.

[0036] In an exemplary embodiment, the identifier of the second bypass link radio bearer is the same as the identifier of the first bypass link radio bearer and/or the identifier of at least one second logical channel is the same as the identifier of at least one first logical channel.

[0037] In an exemplary embodiment, the method presented in this embodiment of the present application further includes the following: The first terminal receives from the second terminal at least one of the following information: source address information of the second bypass link radio bearer, address information a recipient of the second bypass link radio bearer; and third bypass link second radio bearer configuration information. It should be understood that the third configuration information belongs to the first configuration information or the second configuration information. For the specific content of the first configuration information or the second configuration information in this document, see the respective descriptions in the first aspect. Details are not described here again. The third configuration information may be the same as the first configuration information or the second configuration information. Of course, the third configuration information may include information contained in the first configuration information or the second configuration information and which is required when the first terminal configures the second bypass link radio bearer.

[0038] In an exemplary embodiment, the method presented in this embodiment of the present application further includes the following: The first terminal sends to the second terminal a sixth message used to indicate that the QoS associated with the first bypass link radio bearer is changes.

[0039] In an exemplary embodiment, the method presented in this embodiment of the present application further includes the following: The first terminal sends a seventh message to the network device. The seventh message includes QoS information of the first bypass link service and any one or more of the following information: source address information and destination address information that correspond to the QoS information of the first bypass link service, and a bypass link radio bearer identifier which is set between the first terminal and the second terminal, and/or a logical channel identifier in the bypass link radio bearer that is set between the first terminal and the second terminal. The first terminal receives the eighth message from the network device. The eighth message includes source address information of the first bypass link radio bearer, destination address information of the first bypass link radio bearer, or configuration information of the first bypass link radio bearer. When determining that there is bypass link service data to be transmitted, the first terminal may send the established bypass link radio bearer identifier and/or the logical channel identifier in the established bypass link radio bearer to the network device so that the network device can allocate the same identifier to the first bypass link radio bearer and the second bypass link radio bearer.

[0040] According to a third aspect, an embodiment of the present application provides a radio bearer configuration method, including the following: A second terminal receives a first message from a first terminal. The first message includes any one or more of the following information: quality of service (QoS) information associated with the bypass link radio bearer between the second terminal and the first terminal, and first bypass link radio bearer configuration information. The first configuration information includes at least one of the following information: first indication information and an indication of the bearer type. The first indication information is used to indicate the mode of operation at the radio link control (RLC) layer of the bypass link radio bearer, and the channel type indication is used to indicate that the bypass link radio bearer is a bidirectional bearer. The second terminal establishes or configures a bypass link radio bearer based on the first message.

[0041] According to the radio bearer configuration method provided in this embodiment of the present application, in this method, the first terminal sends a first message to the second terminal, so that the second terminal can set, based on the first message, a bypass link radio bearer that satisfies the QoS requirement to ensure that the bypass link service data transmitted over the bypass link radio bearer can satisfy the QoS requirement to reliably transmit the bypass link service data. Further, if the bypass link bearer is a bidirectional bearer, the second terminal may determine that the bypass link service bearer may be used to send the bypass link service data to the first terminal, and the bypass link service bearer may further be used to receive an RLC status report for bypass link service data from the first terminal. Alternatively, the second terminal may determine that the bypass link service bearer may be used to receive the bypass link service data from the first terminal, and the bypass link service bearer may further be used to send an RLC status report for the service data. bypass link to the first terminal.

[0042] In an exemplary embodiment, the bypass link radio bearer includes at least one RLC entity or at least two RLC entities. When the mode of operation at the RLC layer is acknowledged mode (AM), then at least one RLC entity is associated with one logical channel. When the mode of operation at the RLC layer is Unacknowledged (UM), then at least two RLC entities are associated with one logical channel. It should be understood that when the mode of operation at the RLC layer is acknowledged mode (AM), then the bypass link radio bearer includes at least one RLC entity and at least one RLC entity is associated with one logical channel. When the mode of operation at the RLC layer is UM, the bypass link radio bearer includes at least two RLC entities, and at least two RLC entities are associated with one logical channel.

[0043] It should be understood that if the bypass link radio bearer includes one logical channel, then the bypass link radio bearer between the first terminal and the second terminal must be identified by using an identifier corresponding to the connection established between the first terminal and the second terminal. terminal.

[0044] In an exemplary embodiment, the bypass link radio bearer identifier and/or the logical channel identifier in the bypass link radio bearer are unique in the connection between the second terminal and the first terminal. The connection between the second terminal and the first terminal is identified by using the first identifier. Thus, the bypass link bearer and the logical channel can be accurately identified to avoid misassociation between the sent bypass link service data and the received RLC status report.

[0045] In an exemplary implementation, the first identifier is a combination of the layer 2 identifier of the first terminal and the layer 2 identifier of the second terminal. Thus, it can be determined that the bypass link radio bearer is used to transmit data of the bypass link service or RLC status report between the first terminal and the second terminal.

[0046] In an exemplary embodiment, the bypass link radio bearer includes at least one RLC entity or at least two RLC entities and at least one RLC entity or at least two RLC entities associated with two logical channels. When the mode of operation at the RLC layer is AM, then at least one RLC entity is associated with two logical channels. When the mode of operation at the RLC layer is UM, then any of the at least two RLC entities is associated with one of the two logical channels. It should be understood that when the mode of operation at the RLC layer is AM, then the bypass link radio bearer includes at least one RLC entity. When the mode of operation at the RLC layer is UM, the bypass link radio bearer includes at least two RLC entities. If the bypass link radio bearer includes two logical channels, one of the two logical channels corresponds to the direction from the first terminal to the second terminal. Another logical channel corresponds to the direction from the second terminal to the first terminal.

[0047] In an exemplary embodiment, the bypass link radio bearer ID and/or the ID of either of the two logical channels is(are) unique in combining source information and destination information.

[0048] In an exemplary embodiment, the identifier of one of the two logical channels is unique in combining the first source information and the first destination information, the first source information is the source layer 2 identifier of the first terminal, and the first destination information is the source layer 2 identifier of the second terminal. The identifier of the other one of the two logical channels is unique in combining the second source information and the second destination information, the second source information is the source layer 2 identifier of the second terminal, and the second destination information is the source layer 2 identifier of the first terminal.

[0049] In an exemplary embodiment, the first configuration information includes an identifier for one of the two logical channels or a bypass link radio bearer identifier.

[0050] In an exemplary embodiment, the first configuration information is used by the first terminal to send bypass link service data and/or control signaling by using the bypass link bearer radio channel and is used by the second terminal to receive bypass link service data and/or control signaling by using a radio carrier bypass link.

[0051] In an exemplary embodiment, the method presented in this embodiment of the present application further includes the following: The second terminal obtains the second bypass link radio bearer configuration information. The second terminal configures the bypass link radio bearer based on the second bypass link radio bearer configuration information. The second configuration information includes at least one of the following information: a bypass link radio bearer identifier, configuration information of a PDCP entity in the bypass radio bearer, configuration information of at least one RLC entity or at least two RLC entities in on the bypass link radio bearer, configuration information of one logical channel associated with at least one RLC entity or with at least two RLC entities on the bypass link radio bearer, and a logical channel identifier.

[0052] In an exemplary embodiment, the method presented in this embodiment of the present application further includes the following: The second terminal obtains the second bypass link radio bearer configuration information. The second terminal configures the bypass link radio bearer based on the second bypass link radio bearer configuration information. The second configuration information includes at least one of the following information: a bypass link radio bearer identifier, configuration information of a PDCP entity in the bypass radio bearer, configuration information of at least one RLC entity or at least two RLC entities in on the bypass link radio bearer, configuration information of any of the two logical channels associated with at least one RLC entity or at least two RLC entities on the bypass link radio bearer, and a logical channel identifier.

[0053] In an exemplary embodiment, the second configuration information is used by the second terminal to send bypass link service data and/or control signaling by using the bypass link bearer radio channel and is used by the first terminal to receive bypass link service data and/or control signaling by using a radio carrier bypass link.

[0054] In an exemplary embodiment, the second terminal receives second bypass link radio bearer configuration information, including the following: The second terminal receives a second message from the network device, the second message including second configuration information that relates to the radio bearer bypass link and configured for the second terminal. Alternatively, the second terminal obtains the second bypass link radio bearer configuration information from the preconfiguration information.

[0055] In an exemplary embodiment, before the second terminal receives the second message from the network device, the method provided in this embodiment of the present application further includes the following: The second terminal sends a third message to the network device. The third message includes at least one of the following information: a bypass link radio bearer identifier, an identifier of at least one of two logical channels associated with at least one RLC entity or at least two RLC entities in the radio bearer bypass link, an identifier of one logical channel associated with at least one RLC entity or at least two RLC entities in the bypass link radio bearer, QoS information associated with the bypass link radio bearer, and first indication information.

[0056] In an exemplary implementation, the method further includes the following: a second message and a third message, each of which further includes a first identifier.

[0057] In an exemplary embodiment, the method presented in this embodiment of the present application further includes the following: The second terminal sends a fourth message to the first terminal, wherein the fourth message includes third bypass link bearer configuration information.

[0058] In an exemplary embodiment, the method presented in this embodiment of the present application further includes the following: The second terminal receives the first Media Access Control (MAC) protocol data unit (PDU) and the first association information, which are sent by the first terminal. The first combining information includes a first identifier and identifiers of one logical channel group in the bypass link radio bearer, and the first combining information indicates that the first MAC SDU is a MAC SDU in the bypass link radio bearer. The first MAC SDU is a MAC SDU that is included in the first MAC PDU and corresponds to a logical channel identifier associated with at least one RLC entity or at least two RLC entities on the bypass link radio bearer.

[0059] In an exemplary embodiment, the method presented in this embodiment of the present application further includes the following: The second terminal sends the second MAC PDU and the second association information to the first terminal. The second combining information includes a first identifier and identifiers of one logical channel group, and the second combining information indicates that the second MAC SDU is a MAC SDU on the bypass link radio bearer. The second MAC SDU is a MAC SDU that is included in the second MAC PDU and corresponds to a logical channel identifier associated with at least one RLC entity or at least two RLC entities on the bypass link radio bearer.

[0060] In an exemplary embodiment, the method presented in this embodiment of the present application further includes the following: The second terminal receives the first MAC PDU and the third combining information that are sent by the first terminal. The third combining information includes source information, destination information, and identifiers of the first logical channel group in the two logical channel groups in the bypass link radio bearer, and the third combining information indicates that the first MAC SDU is a MAC SDU in the bypass link radio bearer. communication lines. The first MAC SDU is a MAC SDU that is included in the first MAC PDU and corresponds to a first logical channel identifier in two logical channels associated with at least one RLC entity or with at least two RLC entities on a bypass link radio bearer. The source information is the source layer 2 identifier of the first terminal, and the destination information is the source layer 2 identifier of the second terminal.

[0061] In an exemplary embodiment, the method presented in this embodiment of the present application further includes the following: The second terminal sends the second MAC PDU and the fourth association information to the first terminal. The fourth association information indicates that the second MAC SDU is a MAC SDU on the bypass link radio bearer. The second MAC SDU is a MAC SDU that is included in the second MAC PDU and corresponds to a second logical channel identifier in two logical channels associated with at least one RLC entity or with at least two RLC entities on a bypass link radio bearer. The source information is the source layer 2 identifier of the second terminal, and the destination information is the source layer 2 identifier of the first terminal.

[0062] In an exemplary embodiment, the method presented in this embodiment of the present application further includes the following: The second terminal determines that the QoS flow associated with the bypass link radio bearer is changing. The second terminal sends the fifth message to the first terminal or network device. The fifth message is used to indicate a change in the QoS flow associated with the bypass link radio bearer.

[0063] In an exemplary embodiment, the method further includes: That the second terminal determines that the QoS flow associated with the bypass link radio bearer is changing includes: The second terminal receives the sixth message from the first terminal. The sixth message is used to indicate that the QoS flow associated with the first bypass link radio bearer is changing.

[0064] According to a fourth aspect, an embodiment of the present application provides a radio bearer configuration method, including the following: A first terminal determines to set up or configure a bypass link radio bearer. The first terminal sends the first message to the second terminal. The first message includes at least one of the following information: quality of service (QoS) information associated with a bypass link radio bearer between the second terminal and the first terminal, and first bypass link radio bearer configuration information. The first configuration information includes at least one of the following information: first indication information and an indication of the bearer type. The first indication information is used to indicate the mode of operation at the radio link control (RLC) layer of the bypass link radio bearer, and the channel type indication is used to indicate that the bypass link radio bearer is a bidirectional bearer.

[0065] In an exemplary embodiment, the method presented in this embodiment of the present application further includes the following: The first terminal sends a sixth message to the second terminal. The sixth message is used to indicate that the QoS flow associated with the first bypass link radio bearer is changing.

[0066] In an exemplary embodiment, the method presented in this embodiment of the present application further includes the following: The first terminal receives a fifth message from the second terminal. The fifth message is used to indicate a change in the QoS flow associated with the bypass link radio bearer.

[0067] In an exemplary embodiment, the method presented in this embodiment of the present application further includes the following: The first terminal increases or decreases, based on the fifth message, the amount of QoS flow associated with the bypass link radio bearer.

[0068] It should be understood that for descriptions that the bypass link radio bearer includes two logical channels or one logical channel in the sixth aspect, refer to the same descriptions in the third aspect. Details are not described here again.

[0069] In an exemplary embodiment, the method presented in this embodiment of the present application further includes the following: The first terminal receives from the second terminal a fourth message that includes third configuration information. The content of the third configuration information belongs to the first configuration information or the second configuration information. For the specific contents of the first configuration information and the second configuration information, see the same descriptions in the third aspect. Details are not described here again.

[0070] In an exemplary embodiment, the method presented in this embodiment of the present application further includes the following: The first terminal sends the first MAC PDU and the first association information to the second terminal. For the specific contents of the first MAC PDU and the first association information, see the same descriptions in the third aspect. Details are not described here again.

[0071] In an exemplary embodiment, the method presented in this embodiment of the present application further includes the following: The first terminal receives the second MAC PDU and the second combining information from the second terminal. For information about the specific content of the second MAC PDU and the second association information, see the descriptions in the third aspect. Details are not described here again.

[0072] In an exemplary embodiment, the method presented in this embodiment of the present application further includes the following: The first terminal sends the first MAC PDU and the third combining information to the second terminal. For the specific contents of the first MAC PDU and the third association information, see the same descriptions in the third aspect. Details are not described here again.

[0073] In an exemplary embodiment, the method presented in this embodiment of the present application further includes the following: The first terminal receives the second MAC PDU and the fourth combining information from the second terminal. For the specific contents of the second MAC PDU and the fourth association information, see the same descriptions in the third aspect. Details are not described here again.

[0074] According to a fifth aspect, the present application provides a radio bearer configuration device. The radio bearer configuration device may implement the method according to any of the first aspect or embodiments of the first aspect, and therefore may also implement benefits according to any one of the first aspect or embodiments of the first aspect. The radio bearer configuration device may be a second terminal, or may be a device that can support the second terminal in implementing a method according to any of the first aspect or embodiments of the first aspect, such as a chip used in the second terminal. The apparatus may implement the above method with software, hardware, or hardware executing the corresponding software.

[0075] In one example, an embodiment of the present application provides a radio bearer configuration device. The device includes a processing unit and a communication unit. The processing unit is configured to determine that the first bypass link radio bearer and the second bypass link radio bearer, which are used during communication between the second terminal and the first terminal, are interconnected with each other. The communication unit is configured to send to the first terminal a first message that carries the first indication information. The first indication information is used to indicate that the first bypass link radio bearer is associated with the second bypass link radio bearer. The first bypass link radio bearer is used by the first terminal to send the first bypass link service data to the second terminal. The second bypass link radio bearer is used by the second terminal to send a first radio link control (RLC) status report for the first bypass link service data to the first terminal.

[0076] In an exemplary embodiment, the second bypass link radio bearer is further used by the second terminal to send second bypass link service data to the first terminal. The first bypass link radio bearer is further used by the first terminal to send a second RLC status report for the second bypass link service data to the second terminal.

[0077] In an exemplary embodiment, the first bypass link radio bearer and the second bypass link radio bearer are unidirectional bearers.

[0078] For specific contents of the first bypass link radio bearer and the second bypass link radio bearer, see the descriptions in the first aspect. Details are not described here again.

[0079] In an exemplary embodiment, the communication unit is configured to receive a second message from the first terminal. The second message includes any one or more of the following information: a first bypass link radio bearer identifier, an identifier of at least one first logical channel, or quality of service (QoS) information associated with the first bypass link radio bearer.

[0080] In an exemplary embodiment, the communication unit is configured to send a third message to the network device used to request to configure a second bypass link radio bearer, the third message including at least QoS information. The second terminal receives the fourth message from the network device. The fourth message includes QoS information and first configuration information that is related to the QoS information and is used to configure the second bypass link radio bearer.

[0081] In an exemplary embodiment, the fourth message further includes at least one of the following information: a second bypass link radio bearer identifier, an identifier of at least one second logical channel, and a first anchor relationship. The first anchor relationship includes an anchor relationship between the QoS information and the identifier of the second bypass link radio bearer and/or the anchor relationship between the QoS information and the identifier of at least one second logical channel. The processing unit is specifically configured to determine, based on the fourth message, that the first bypass link radio bearer is associated with the second bypass link radio bearer.

[0082] In an exemplary embodiment, the third message further includes any one or more of the following information: a first bypass link radio bearer identifier or an identifier of at least one first logical channel. The fourth message further includes a second anchor relationship. The second anchor relationship includes an anchor relationship between the first bypass link radio bearer information and the second bypass link radio bearer information. The processing unit is specifically configured to determine, based on the second anchor relationship, that the first bypass link radio bearer is associated with the second bypass link radio bearer.

[0083] In an exemplary embodiment, the processing unit is specifically configured to determine, based on the second message and preconfiguration information, that the first bypass link radio bearer is associated with the second bypass link radio bearer. The preconfiguration information includes at least QoS information and second configuration information associated with the QoS information. The second configuration information is used to configure the second bypass link radio bearer.

[0084] In an exemplary embodiment, the preconfiguration information further includes at least one of the following information: a second bypass link radio bearer identifier, an identifier of at least one second logical channel, and a third anchor relation. The third anchor relationship includes an anchor relationship between the QoS information and an identifier of the second bypass link radio bearer and/or an anchor relationship between the QoS information and the identifier of at least one second logical channel. The processing unit is specifically configured to determine, based on the third anchor relationship, that the first bypass link radio bearer is associated with the second bypass link radio bearer.

[0085] In an exemplary embodiment, the preconfiguration information further includes a fourth binding relationship. The fourth anchor relationship includes an anchor relationship between the first bypass link radio bearer information and the second bypass link radio bearer information. The processing unit is specifically configured to determine, based on the fourth anchor relation, that the first bypass link radio bearer is associated with the second bypass link radio bearer.

[0086] In an exemplary embodiment, the processing unit is specifically configured to autonomously determine the identifier of the second bypass link radio bearer and/or the identifier of at least one second logical channel.

[0087] In an exemplary embodiment, that the first indication information is used to indicate that the first bypass link radio bearer is interconnected with the second bypass link radio bearer, specifically includes any one or more of the following information: an anchor relationship between information about the first bypass link radio bearer and information about the second bypass link radio bearer. Information about the first bypass link radio bearer includes an identifier of the first bypass link radio bearer and/or an identifier of at least one first logical channel in the first bypass link radio bearer. Information about the second bypass link radio bearer includes an identifier of at least one second logical channel in the second bypass link radio bearer and/or an identifier of the second bypass link radio bearer.

[0088] In an exemplary embodiment, that the first indication information is used to indicate that the first bypass link radio bearer is interconnected with the second bypass link radio bearer, specifically includes: the first indication information includes a second radio bearer identifier - bypass link carrier and/or identifier of at least one second logical channel.

[0089] In an exemplary embodiment, when the identifier of the second bypass link radio bearer is the same as the identifier of the first bypass link radio bearer and/or the identifier of at least one second logical channel is the same as the identifier of the at least one first logical channel, the processing unit is specifically configured to determine that the first bypass link radio bearer is associated with the second bypass link radio bearer. The third message further includes an identifier of the second bypass link radio bearer and/or an identifier of at least one second logical channel in the second bypass link radio bearer.

[0090] In an exemplary embodiment, the identifier of the second bypass link radio bearer is the same as the identifier of the first bypass link radio bearer and/or the identifier of at least one second logical channel is the same as the identifier of at least one first logical channel. The preconfiguration information further includes at least one of the following information: a second bypass link radio bearer identifier, an identifier of at least one second logical channel, and a fifth anchor relation. The fifth anchor relationship includes an anchor relationship between the QoS information and the identifier of the second bypass link radio bearer and/or an anchor relationship between the QoS information and the identifier of at least one second logical channel. In this case, the processing unit is specifically configured to determine that the first bypass link radio bearer is associated with the second bypass link radio bearer.

[0091] In an exemplary embodiment, the communication unit is further configured to send to the network device at least one of the following information: source address information of the second bypass link radio bearer, second bypass link radio bearer address information, and pointing information, indicating that the RLC mode of operation of the second bypass link radio bearer is the AM mode. The communication unit is further configured to receive from the network device at least one of the following information: source address information of the second bypass link radio bearer and second bypass link radio bearer address information.

[0092] In an exemplary embodiment, the communication unit is further configured to send to the first terminal at least one of the following information: second bypass link radio bearer source address information, second bypass link radio bearer destination address information, and third configuration information the second radio carrier of the bypass link.

[0093] In an exemplary embodiment, the processing unit is further configured to configure at least one first RLC entity in the first bypass link radio bearer of the second terminal and at least one second RLC entity in the second bypass link radio bearer of the second terminal, which must be interconnected with each other.

[0094] In an exemplary embodiment, the processing unit is further configured to send a first RLC status report and second indication information to at least one second RLC entity in the second bypass link radio bearer by using at least one first RLC entity in the first bypass link carrier radio channel. The second indication information is used to indicate that the first RLC status report is an RLC status report for the first bypass link service data received by the second terminal. Alternatively, at least one first RLC entity on the first bypass link radio bearer sends a second RLC status report and third indication information to at least one second RLC entity on the second bypass link radio bearer. The third indication information is used to indicate that the second RLC status report is an RLC status report that is for the second bypass link service data and is sent by the first terminal.

[0095] In an exemplary embodiment, the processing unit is further configured to determine that the QoS flow associated with the first bypass link radio bearer or the second bypass link radio bearer is changing. The communication unit is further configured to send the fifth message to the first terminal or network device. The fifth message is used to indicate a change in the QoS flow associated with the first bypass link radio bearer or the second bypass link radio bearer.

[0096] In an exemplary embodiment, the communication unit is further configured to receive a sixth message from the first terminal. The sixth message is used to indicate that the QoS flow associated with the first bypass link radio bearer is changing. Thus, the processing unit determines, based on the sixth message, that the QoS flow associated with the first bypass link radio bearer or the second bypass link radio bearer is changed.

[0097] In another example, an embodiment of the present application provides a radio bearer configuration device. The radio bearer configuration device may be a second terminal or may be a chip in the second terminal. When the radio bearer configuration device is the second terminal, the communication unit may be a transceiver and the processing unit may be a processor. The radio bearer configuration device may further include a storage unit. The storage unit may be a memory. The storage unit is configured to store the computer program code, wherein the computer program code includes instructions. The processing unit executes the instruction stored in the storage unit such that the second terminal implements the radio bearer configuration method according to any of the first aspect or possible implementations of the first aspect. When the radio bearer configuration device is a chip in the second terminal, the processing unit may be a processor, and the communication unit may be collectively referred to as a communication interface. For example, the communication interface may be an input/output interface, an output, a circuit, or the like. The processing unit executes the computer program code stored in the storage unit such that the second terminal implements the radio bearer configuration method according to any of the first aspect or embodiments of the first aspect. The storage unit may be a storage unit (eg, a register or cache) on a chip, or may be a storage unit (eg, read only memory or random access memory) that resides in the second terminal and that resides off the chip.

[0098] Optionally, the processor, communication interface, and memory are connected to each other.

[0099] According to a sixth aspect, the present application provides a radio bearer configuration device. The radio bearer configuration device may implement the method according to any of the second aspect or embodiments of the second aspect, and therefore may also implement the benefits according to any one of the second aspect or embodiments of the second aspect. The radio bearer configuration device may be a first terminal, or may be a device that can support the first terminal in implementing a method according to any of the second aspect or embodiments of the second aspect, such as a chip used in the first terminal. The apparatus may implement the above method with software, hardware, or hardware executing the corresponding software.

[0100] In one example, the radio bearer configuration device includes a communication unit and a processing unit. The communication unit is configured to receive the first message from the second terminal. The first message includes first indication information used to indicate that the first bypass link radio bearer and the second bypass link radio bearer, which are used when the first terminal is in communication with the second terminal, are interconnected with each other. The first bypass link radio bearer is used by the first terminal to send the first bypass link service data to the second terminal, and the second bypass link radio bearer is used by the second terminal to send the first radio link control (RLC) status report for the first bypass service data. communication lines to the first terminal. The processing unit is configured to determine, based on the first indication information, that the first RLC status report is an RLC status report for the first bypass link service data.

[0101] In an exemplary embodiment, the second bypass link radio bearer is further used by the second terminal to send second bypass link service data to the first terminal, and the first bypass link radio bearer is further used by the first terminal to send a second RLC status report for second bypass link service data for the second terminal. The processing unit is further configured to determine, based on the first indication information, to send a second RLC status report for the second bypass link service data by using the first bypass link radio bearer.

[0102] In an exemplary embodiment, the processing unit is further configured to configure at least one first RLC entity in the first bypass link radio bearer of the first terminal and at least one second RLC entity in the second bypass link radio bearer of the first terminal, which must be interconnected with each other.

[0103] In a possible embodiment, the communication unit is further configured to send to the second terminal a second message including any one or more of the following information: an identifier of the first bypass link carrier radio channel, an identifier of at least one first logical channel in the first radio bearer of the bypass link or quality of service (QoS) information associated with the first radio bearer of the bypass link.

[0104] In an exemplary embodiment, that the first indication information is used to indicate that the first bypass link radio bearer is interconnected with the second bypass link radio bearer, specifically includes any one or more of the following information: an anchor relationship between information about the first bypass link radio bearer and information about the second bypass link radio bearer. The first bypass link radio bearer information includes any one or more of the following information: a first bypass link radio bearer identifier or an identifier of at least one first logical channel. The second bypass link radio bearer information includes any one or more of the following information: an identifier of at least one second logical channel or a second bypass link radio bearer identifier.

[0105] In an exemplary embodiment, that the first indication information is used to indicate that the first bypass link radio bearer is interconnected with the second bypass link radio bearer, specifically includes: the first indication information includes a second radio bearer identifier - bypass link carrier and/or identifier of at least one second logical channel.

[0106] In an exemplary embodiment, the identifier of the second bypass link radio bearer is the same as the identifier of the first bypass link radio bearer and/or the identifier of at least one second logical channel is the same as the identifier of at least one first logical channel.

[0107] In an exemplary embodiment, the communication unit is further configured to receive from the second terminal at least one of the following information: second bypass link radio bearer source address information, second bypass link radio bearer destination address information, and third configuration information the second radio carrier of the bypass link.

[0108] In an exemplary embodiment, the communication unit is further configured to send to the second terminal a sixth message used to indicate that the QoS associated with the first bypass link radio bearer is changing.

[0109] In an exemplary embodiment, the communication unit is further configured to send a seventh message to the network device. The seventh message includes QoS information of the first bypass link service and any one or more of the following information: source address information and destination address information that correspond to the QoS information of the first bypass link service, and a bypass link radio bearer identifier which is set between the first terminal and the second terminal, and/or a logical channel identifier in the bypass link radio bearer that is set between the first terminal and the second terminal. The communication unit is further configured to receive an eighth message from the network device. The eighth message includes source address information of the first bypass link radio bearer, destination address information of the first bypass link radio bearer, or configuration information of the first bypass link radio bearer.

[0110] In another example, an embodiment of the present application provides a radio bearer configuration device. The radio bearer configuration device may be the first terminal or may be a chip in the first terminal. When the radio bearer configuration device is the first terminal, the communication unit may be a transceiver and the processing unit may be a processor. The radio bearer configuration device may further include a storage unit. The storage unit may be a memory. The storage unit is configured to store the computer program code, wherein the computer program code includes instructions. The processing unit executes the instruction stored in the storage unit such that the first terminal implements the radio bearer configuration method according to any of the second aspect or embodiments of the second aspect. When the radio bearer configuration device is a chip in the first terminal, the processing unit may be a processor, and the communication unit may be collectively referred to as a communication interface. For example, the communication interface may be an input/output interface, an output, a circuit, or the like. The processing unit executes the computer program code stored in the storage unit such that the first terminal implements the radio bearer configuration method according to any of the second aspect or embodiments of the second aspect. The storage unit may be a storage unit (eg, a register or cache) in a chip, or may be a storage unit (eg, read only memory or random access memory) that resides in the first terminal and that resides off the chip.

[0111] Optionally, the processor, communication interface and memory are connected to each other.

[0112] According to a seventh aspect, the present application provides a radio bearer configuration device. The radio bearer configuration device may implement the method according to any one of the third aspect or possible implementations of the third aspect, and therefore may also implement benefits according to any one of the third aspect or possible implementations of the third aspect. The radio bearer configuration device may be a second terminal, or may be a device that can support the second terminal in implementing the method according to any of the third aspect or possible embodiments of the third aspect, such as a chip used in the second terminal. The apparatus may implement the above method with software, hardware, or hardware executing the corresponding software.

[0113] In one example, an embodiment of the present application provides a radio bearer configuration device including a communication unit and a processing unit. The communication unit is configured to receive the first message from the first terminal. The first message includes any one or more of the following information: quality of service (QoS) information associated with the bypass link radio bearer between the second terminal and the first terminal, and first bypass link radio bearer configuration information. The first configuration information includes at least one of the following information: first indication information and an indication of the bearer type. The first indication information is used to indicate the mode of operation at the radio link control (RLC) layer of the bypass link radio bearer, and the channel type indication is used to indicate that the bypass link radio bearer is a bidirectional bearer. The processing unit is configured to: set or configure a bypass link radio carrier based on the first message.

[0114] In an exemplary embodiment, the bypass link radio bearer includes at least one RLC entity or at least two RLC entities. When the mode of operation at the RLC layer is acknowledged mode (AM), then at least one RLC entity is associated with one logical channel. When the mode of operation at the RLC layer is Unacknowledged (UM), then at least two RLC entities are associated with one logical channel.

[0115] In an exemplary embodiment, the bypass link radio bearer ID and/or the logical channel ID in the bypass link radio bearer are unique in the connection between the second terminal and the first terminal. The connection between the second terminal and the first terminal is identified by using the first identifier.

[0116] In an exemplary implementation, the first identifier is a combination of the layer 2 identifier of the first terminal and the layer 2 identifier of the second terminal.

[0117] In an exemplary embodiment, the bypass link radio bearer includes at least one RLC entity or at least two RLC entities and at least one RLC entity or at least two RLC entities associated with two logical channels. When the mode of operation at the RLC layer is AM, then at least one RLC entity is associated with two logical channels. When the mode of operation at the RLC layer is UM, then any of the at least two RLC entities is associated with one of the two logical channels.

[0118] In an exemplary embodiment, the bypass link radio bearer ID and/or the ID of either of the two logical channels is(are) unique in combining source information and destination information.

[0119] In an exemplary embodiment, the identifier of one of the two logical channels is unique in combining the first source information and the first destination information, the first source information is the source layer 2 identifier of the first terminal, and the first destination information is the source layer 2 identifier of the second terminal. The identifier of the other one of the two logical channels is unique in combining the second source information and the second destination information, the second source information is the source layer 2 identifier of the second terminal, and the second destination information is the source layer 2 identifier of the first terminal.

[0120] In an exemplary embodiment, the first configuration information includes an identifier for one of the two logical channels or an identifier for a bypass link radio bearer.

[0121] In an exemplary embodiment, the first configuration information is used by the first terminal to send the bypass link service data and/or control signaling by using the bypass link bearer radio and is used by the second terminal to receive the bypass link service data and/or control signaling by using a radio carrier bypass link.

[0122] In an exemplary embodiment, the communication unit is further configured to obtain second bypass link radio bearer configuration information. The second terminal configures the bypass link radio bearer based on the second bypass link radio bearer configuration information. The second configuration information includes at least one of the following information: a bypass link radio bearer identifier, configuration information of a PDCP entity in the bypass radio bearer, configuration information of at least one RLC entity or at least two RLC entities in on the bypass link radio bearer, configuration information of one logical channel associated with at least one RLC entity or with at least two RLC entities on the bypass link radio bearer, and a logical channel identifier.

[0123] In an exemplary embodiment, the communication unit is further configured to obtain second bypass link radio bearer configuration information. The second terminal configures the bypass link radio bearer based on the second bypass link radio bearer configuration information. The second configuration information includes at least one of the following information: a bypass link radio bearer identifier, configuration information of a PDCP entity in the bypass radio bearer, configuration information of at least one RLC entity or at least two RLC entities in on the bypass link radio bearer, configuration information of any of the two logical channels associated with at least one RLC entity or at least two RLC entities on the bypass link radio bearer, and a logical channel identifier.

[0124] In an exemplary embodiment, the second configuration information is used by the second terminal to send bypass link service data and/or control signaling by using the bypass link bearer radio and is used by the first terminal to receive bypass link service data and/or control signaling by using a radio carrier bypass link.

[0125] In an exemplary embodiment, the communication unit is specifically configured to receive a second message from a network device, wherein the second message includes second configuration information that relates to a bypass link radio bearer and that is configured for the second terminal. Alternatively, the communication unit is specifically configured to obtain the second bypass link radio bearer configuration information from the preconfiguration information.

[0126] In an exemplary embodiment, the communication unit is further configured to send a third message to the network device. The third message includes at least one of the following information: a bypass link radio bearer identifier, an identifier of at least one of two logical channels associated with at least one RLC entity or at least two RLC entities in the radio bearer bypass link, QoS information associated with the bypass link radio bearer, and first indication information.

[0127] In an exemplary embodiment, the second message and the third message further include a first identifier.

[0128] In an exemplary embodiment, the communication unit is specifically configured to send a fourth message to the first terminal, wherein the fourth message includes third bypass link bearer configuration information.

[0129] In an exemplary embodiment, the communication unit is further configured to receive the first MAC PDU and the first combining information that are sent by the first terminal. The first combining information includes a first identifier and identifiers of one logical channel group in the bypass link radio bearer, and the first combining information indicates that the first MAC SDU is a MAC SDU in the bypass link radio bearer. The first MAC SDU is a MAC SDU which is included in the first MAC PDU and corresponds to the logical channel group identifiers in the bypass link radio bearer.

[0130] In an exemplary embodiment, the communication unit is further configured to send the second MAC PDU and the second combining information to the first terminal. The second combining information includes a first identifier and identifiers of one logical channel group, and the second combining information indicates that the second MAC SDU is a MAC SDU on the bypass link radio bearer. The second MAC SDU is the MAC SDU that is included in the second MAC PDU and corresponds to the logical channel group IDs.

[0131] In an exemplary embodiment, the communication unit is further configured to receive the first MAC PDU and the third combining information that are sent by the first terminal. The third combining information includes source information, destination information, and identifiers of the first logical channel group in the two logical channel groups in the bypass link radio bearer, and the third combining information indicates that the first MAC SDU is a MAC SDU in the bypass link radio bearer. communication lines. The first MAC SDU is the MAC SDU that is included in the first MAC PDU and corresponds to the first logical channel group IDs in the bypass link radio bearer, the source information is the source layer 2 ID of the first terminal, and the destination information is the source layer 2 ID of the second terminal. terminal.

[0132] In an exemplary embodiment, the communication unit is further configured to send the second MAC PDU and the fourth combining information to the first terminal. The fourth combining information includes source information, destination information, and identifiers of the second logical channel group in the two logical channel groups in the bypass link radio bearer, and the fourth combining information indicates that the second MAC SDU is a MAC SDU in the bypass link bearer. communication lines. The second MAC SDU is the MAC SDU which is included in the second MAC PDU and corresponds to the second logical channel identifier in the bypass link radio bearer, the source information is the source layer 2 identifier of the second terminal, and the destination information is the source layer 2 identifier of the first terminal.

[0133] In an exemplary embodiment, the processing unit is further configured to determine that the QoS flow associated with the bypass link radio bearer is changing. The second terminal sends the fifth message to the first terminal or network device. The fifth message is used to indicate a change in the QoS flow associated with the bypass link radio bearer.

[0134] In an exemplary embodiment, the communication unit is further configured to receive a sixth message from the first terminal. The sixth message is used to indicate that the QoS flow associated with the first bypass link radio bearer is changing. The processing unit is specifically configured to determine, based on the sixth message, that the QoS flow associated with the first bypass link radio bearer is changing.

[0135] In another example, an embodiment of the present application provides a radio bearer configuration device. The radio bearer configuration device may be a second terminal or may be a chip in the second terminal. When the radio bearer configuration device is the second terminal, the communication unit may be a transceiver and the processing unit may be a processor. The radio bearer configuration device may further include a storage unit. The storage unit may be a memory. The storage unit is configured to store the computer program code, wherein the computer program code includes instructions. The processing unit executes the instruction stored in the storage unit such that the second terminal implements the radio bearer configuration method according to any of the first aspect or possible implementations of the first aspect. When the radio bearer configuration device is a chip in the second terminal, the processing unit may be a processor, and the communication unit may be collectively referred to as a communication interface. For example, the communication interface may be an input/output interface, an output, a circuit, or the like. The processing unit executes the computer program code stored in the storage unit such that the second terminal implements the radio bearer configuration method according to any of the first aspect or embodiments of the first aspect. The storage unit may be a storage unit (eg, a register or cache) on a chip, or may be a storage unit (eg, read only memory or random access memory) that resides in the second terminal and that resides off the chip.

[0136] Optionally, the processor, communication interface, and memory are connected to each other.

[0137] According to an eighth aspect, the present application provides a radio bearer configuration device. The radio bearer configuration device may implement the method according to any one of the fourth aspect or possible implementations of the fourth aspect, and therefore may also implement the benefits according to any one of the fourth aspect or possible implementations of the fourth aspect. The radio bearer configuration device may be a first terminal or may be a device that can support the first terminal in implementing the method according to any of the fourth aspect or possible embodiments of the fourth aspect, such as a chip used in the first terminal. The apparatus may implement the above method with software, hardware, or hardware executing the corresponding software.

[0138] In one example, an embodiment of the present application provides a radio bearer configuration device. The radio bearer configuration apparatus includes: a processing unit configured to determine to set or configure a bypass link radio bearer; and a communication unit configured to send the first message to the second terminal. The first message includes at least one of the following information: quality of service (QoS) information associated with a bypass link radio bearer between the second terminal and the first terminal, and first bypass link radio bearer configuration information. The first configuration information includes at least one of the following information: first indication information and an indication of the bearer type. The first indication information is used to indicate the mode of operation at the radio link control (RLC) layer of the bypass link radio bearer, and the channel type indication is used to indicate that the bypass link radio bearer is a bidirectional bearer.

[0139] In an exemplary embodiment, the communication unit is further configured to send a sixth message to the second terminal. The sixth message is used to indicate that the QoS flow associated with the first bypass link radio bearer is changing.

[0140] In an exemplary embodiment, the communication unit is further configured to receive a fifth message from the second terminal. The fifth message is used to indicate a change in the QoS flow associated with the bypass link radio bearer.

[0141] In an exemplary embodiment, the processing unit is further configured to increase or decrease, based on the fifth message, a change in the QoS flow associated with the bypass link radio bearer.

[0142] It should be understood that for descriptions that the bypass link radio bearer includes two logical channels or one logical channel in the eighth aspect, refer to the same descriptions in the third aspect. Details are not described here again.

[0143] In an exemplary embodiment, the communication unit is further configured to receive from the second terminal a fourth message that includes third configuration information.

[0144] In an exemplary embodiment, the communication unit is further configured to send the first MAC PDU and the first combining information to the second terminal. For the specific contents of the first MAC PDU and the first association information, see the same descriptions in the third aspect. Details are not described here again.

[0145] In an exemplary embodiment, the communication unit is further configured to receive the second MAC PDU and the second combining information from the second terminal. For information about the specific content of the second MAC PDU and the second association information, see the descriptions in the third aspect. Details are not described here again.

[0146] In an exemplary embodiment, the communication unit is further configured to send the first MAC PDU and the third combining information to the second terminal. For the specific contents of the first MAC PDU and the third association information, see the same descriptions in the third aspect. Details are not described here again.

[0147] In an exemplary embodiment, the communication unit is further configured to receive the second MAC PDU and the fourth combining information from the second terminal. For the specific contents of the second MAC PDU and the fourth association information, see the same descriptions in the third aspect. Details are not described here again.

[0148] According to a ninth aspect, an embodiment of the present application provides a radio bearer configuration method. The method includes the following: The network device receives from the second terminal a third message used to request to configure a second bypass link radio bearer. The third message includes at least QoS information. The network device sends a fourth message to the second terminal. The fourth message includes QoS information and first configuration information that is related to the QoS information and is used to configure the second bypass link radio bearer.

[0149] In an exemplary embodiment, the fourth message further includes at least one of the following information: a second bypass link radio bearer identifier, an identifier of at least one second logical channel, and a first anchor relationship. The first anchor relationship includes an anchor relationship between the QoS information and the identifier of the second bypass link radio bearer and/or the anchor relationship between the QoS information and the identifier of at least one second logical channel.

[0150] In an exemplary embodiment, the third message further includes any one or more of the following information: a first bypass link radio bearer identifier or an identifier of at least one first logical channel. The fourth message further includes a second anchor relationship. The second anchor relationship includes an anchor relationship between the first bypass link radio bearer information and the second bypass link radio bearer information.

[0151] It should be understood that in an embodiment in which the second terminal autonomously allocates a second bypass link radio bearer identifier and an identifier of at least one second logical channel, the fourth message sent by the network device to the terminal may not contain information about the second bypass link carrier radio channel. However, if the second terminal autonomously allocates one of the second bypass link radio bearer identifier and the identifier of at least one second logical channel, the fourth message sent by the network device carries the other one of the second bypass link radio bearer identifier and the identifier of at least at least one second logical channel.

[0152] In an exemplary embodiment, the method presented in this embodiment of the present application further includes the following: The network device receives from the second terminal at least one of the following information: source address information of the second bypass link radio bearer, address information a recipient of the second bypass link radio bearer and indication information indicating that the RLC mode of the second bypass link radio bearer is the AM mode.

[0153] In an exemplary embodiment, the method presented in this embodiment of the present application further includes the following: The network device receives the fifth message from the second terminal. The fifth message is used to indicate a change in the QoS flow associated with the first bypass link radio bearer or the second bypass link radio bearer.

[0154] In an exemplary embodiment, the method presented in this embodiment of the present application further includes the following: The network device increases or decreases, based on the fifth message, the number of QoS flows associated with the first bypass link radio bearer or the second radio bearer - bypass line carrier.

[0155] According to a tenth aspect, the present application provides a radio bearer configuration device. The radio bearer configuration device may implement the method according to any of the ninth aspect or embodiments of the ninth aspect, and therefore may also implement the benefits according to any one of the ninth aspect or embodiments of the ninth aspect. The radio bearer configuration device may be a network device, or may be a device that can support the network device when implementing the method according to any of the ninth aspect or possible embodiments of the ninth aspect, for example, a chip used in the network device. The apparatus may implement the above method with software, hardware, or hardware executing the corresponding software.

[0156] In one example, an embodiment of the present application provides a radio bearer configuration device including a communication unit and a processing unit. The communication unit is configured to receive from the second terminal a third message used to request to configure the second bypass link radio bearer. The third message includes at least QoS information. The communication unit is further configured to send a fourth message to the second terminal. The fourth message includes QoS information and first configuration information that is related to the QoS information and is used to configure the second bypass link radio bearer.

[0157] In an exemplary embodiment, the fourth message further includes at least one of the following information: a second bypass link radio bearer identifier, an identifier of at least one second logical channel, and a first anchor relationship. The first anchor relationship includes an anchor relationship between the QoS information and the identifier of the second bypass link radio bearer and/or the anchor relationship between the QoS information and the identifier of at least one second logical channel.

[0158] In an exemplary embodiment, the third message further includes any one or more of the following information: a first bypass link radio bearer identifier or an identifier of at least one first logical channel. The fourth message further includes a second anchor relationship. The second anchor relationship includes an anchor relationship between the first bypass link radio bearer information and the second bypass link radio bearer information.

[0159] In an exemplary embodiment, the communication unit is further configured to receive from the second terminal at least one of the following information: source address information of the second bypass link radio bearer, second bypass link radio bearer address information, and pointing information, indicating that the RLC mode of operation of the second bypass link radio bearer is the AM mode.

[0160] In an exemplary embodiment, the communication unit is further configured to receive a fifth message from the second terminal. The fifth message is used to indicate a change in the QoS flow associated with the first bypass link radio bearer or the second bypass link radio bearer.

[0161] In an exemplary embodiment, the processing unit is further configured to increase or decrease, based on the fifth message, the number of QoS flows associated with the first bypass link radio bearer or the second bypass link radio bearer.

[0162] In another example, an embodiment of the present application provides a radio bearer configuration device. The radio bearer configuration device may be a network device or may be a chip in a network device. When the radio bearer configuration device is a network device, the communication unit may be a transceiver and the processing unit may be a processor. The radio bearer configuration device may further include a storage unit. The storage unit may be a memory. The storage unit is configured to store the computer program code, wherein the computer program code includes instructions. The processing unit executes the instruction stored in the storage unit such that the network device implements the radio bearer configuration method in accordance with any of the ninth aspect or possible implementations of the ninth aspect. When the radio bearer configuration device is a chip in a network device, the processing unit may be a processor, and the communication unit may be collectively referred to as a communication interface. For example, the communication interface may be an input/output interface, an output, a circuit, or the like. The processing unit executes the computer program code stored in the storage unit such that the network device implements the radio bearer configuration method according to any of the ninth aspect or possible implementations of the ninth aspect. The storage unit may be a storage unit (eg, a register or cache) on a chip, or may be a storage unit (eg, read only memory or random access memory) that resides on a network device and that resides off the chip.

[0163] Optionally, the processor, communication interface, and memory are connected to each other.

[0164] According to an eleventh aspect, an embodiment of the present application provides a computer-readable storage medium. A computer-readable storage medium stores a computer program or instructions. When the computer program or instructions are run on the computer, the computer is caused to execute the radio bearer configuration method according to any of the first aspect or embodiments of the first aspect.

[0165] According to a twelfth aspect, an embodiment of the present application provides a computer-readable storage medium. A computer-readable storage medium stores a computer program or instructions. When the computer program or instructions are executed on the computer, the method of configuring the radio bearer according to any of the second aspect or embodiments of the second aspect is caused to be executed by the computer.

[0166] According to a thirteenth aspect, an embodiment of the present application provides a computer-readable storage medium. A computer-readable storage medium stores a computer program or instructions. When the computer program or instructions are executed on the computer, the radio bearer configuration method according to any of the third aspect or embodiments of the third aspect is caused to be executed by the computer.

[0167] According to a fourteenth aspect, an embodiment of the present application provides a computer-readable storage medium. A computer-readable storage medium stores a computer program or instructions. When the computer program or instructions are executed on the computer, the radio bearer configuration method according to any of the fourth aspect or embodiments of the fourth aspect is caused to be executed by the computer.

[0168] According to a fifteenth aspect, an embodiment of the present application provides a computer-readable storage medium. A computer-readable storage medium stores a computer program or instructions. When the computer program or instructions are executed on the computer, the radio bearer configuration method according to any of the ninth aspect or possible implementations of the ninth aspect is provided for the computer to execute.

[0169] According to a sixteenth aspect, an embodiment of the present application provides a computer program product including instructions. When the instructions are executed on the computer, the computer is caused to execute the radio bearer configuration method according to the first aspect or possible implementations of the first aspect.

[0170] According to a seventeenth aspect, the present application provides a computer program product including instructions. When the instructions are executed on the computer, the computer executes the radio bearer configuration method according to the second aspect or possible implementations of the second aspect.

[0171] According to an eighteenth aspect, the present application provides a computer program product including instructions. When the instructions are executed on the computer, the computer executes the radio bearer configuration method according to the third aspect or possible implementations of the third aspect.

[0172] According to a nineteenth aspect, the present application provides a computer program product including instructions. When the instructions are executed on the computer, the computer executes the radio bearer configuration method according to the fourth aspect or possible implementations of the fourth aspect.

[0173] According to a twentieth aspect, the present application provides a computer program product including instructions. When the instructions are executed on the computer, the radio bearer configuration method according to the ninth aspect or possible implementations of the ninth aspect is executed by the computer.

[0174] According to a twenty-first aspect, an embodiment of the present application provides a communication system. The communication system includes a first terminal and a second terminal. The second terminal is configured to perform the radio bearer configuration method according to the first aspect or possible implementations of the first aspect, and the first terminal is configured to perform the radio bearer configuration method according to the second aspect or possible implementations of the second aspect.

[0175] In an optional implementation, the communication system may further include a network device. The network device is configured to perform the radio bearer configuration method according to the ninth aspect or possible implementations of the ninth aspect.

[0176] According to a twenty-second aspect, an embodiment of the present application provides a communication system. The communication system includes a first terminal and a second terminal. The second terminal is configured to perform the radio bearer configuration method according to the third aspect or possible implementations of the third aspect, and the first terminal is configured to perform the radio bearer configuration method according to the fourth aspect or possible implementations of the fourth aspect.

[0177] According to a twenty-third aspect, an embodiment of the present application provides a communication device. The communication device includes a processor and a storage medium, and the storage medium stores instructions. When the instructions are executed by the processor, the radio bearer configuration method is implemented in accordance with the first aspect or possible implementations of the first aspect.

[0178] According to a twenty-fourth aspect, an embodiment of the present application provides a communication device. The communication device includes a processor and a storage medium, and the storage medium stores instructions. When the instructions are executed by the processor, the radio bearer configuration method according to the second aspect or possible implementations of the second aspect is implemented.

[0179] According to a twenty-fifth aspect, an embodiment of the present application provides a communication device. The communication device includes a processor and a storage medium, and the storage medium stores instructions. When the instructions are executed by the processor, the radio bearer configuration method according to the third aspect or possible implementations of the third aspect is implemented.

[0180] According to a twenty-sixth aspect, an embodiment of the present application provides a communication device. The communication device includes a processor and a storage medium, and the storage medium stores instructions. When the instructions are executed by the processor, the radio bearer configuration method according to the fourth aspect or possible implementations of the fourth aspect is implemented.

[0181] According to a twenty-seventh aspect, an embodiment of the present application provides a communication device. The communication device includes a processor and a storage medium, and the storage medium stores instructions. When the instructions are executed by the processor, the radio bearer configuration method according to the ninth aspect or possible implementations of the ninth aspect is implemented.

[0182] According to a twenty-eighth aspect, an embodiment of the present application provides a communication device. The communication device includes one or more modules configured to implement the methods according to the first aspect, the second aspect, the third aspect, the fourth aspect, and the ninth aspect, and one or more modules may correspond to steps in the methods according to the first aspect, the second aspect, the third aspect. , the fourth aspect and the ninth aspect.

[0183] According to a twenty-ninth aspect, an embodiment of the present application provides a chip. The microcircuit includes a processor and a communication interface. The communication interface is connected to the processor. The processor is configured to run a computer program or instructions to implement a radio bearer configuration method in accordance with the first aspect or possible implementations of the first aspect. The communication interface is configured to communicate with a module other than the chip.

[0184] According to a thirtieth aspect, an embodiment of the present application provides a chip. The microcircuit includes a processor and a communication interface. The communication interface is connected to the processor. The processor is configured to run a computer program or instructions to implement a radio bearer configuration method in accordance with the second aspect or possible implementations of the second aspect. The communication interface is configured to communicate with a module other than the chip.

[0185] According to a thirty-first aspect, an embodiment of the present application provides a chip. The microcircuit includes a processor and a communication interface. The communication interface is connected to the processor. The processor is configured to run a computer program or instructions to implement the radio bearer configuration method according to the third aspect or possible implementations of the third aspect. The communication interface is configured to communicate with a module other than the chip.

[0186] According to a thirty-second aspect, an embodiment of the present application provides a chip. The microcircuit includes a processor and a communication interface. The communication interface is connected to the processor. The processor is configured to run a computer program or instruction to implement the radio bearer configuration method according to the fourth aspect or possible implementations of the fourth aspect. The communication interface is configured to communicate with a module other than the chip.

[0187] According to a thirty-third aspect, an embodiment of the present application provides a chip. The microcircuit includes a processor and a communication interface. The communication interface is connected to the processor. The processor is configured to run a computer program or instructions to implement the radio bearer configuration method according to the ninth aspect or possible implementations of the ninth aspect. The communication interface is configured to communicate with a module other than the chip.

[0188] Specifically, the chip provided in this embodiment of the present application further includes a memory adapted to store a computer program or instructions.

[0189] Any device, computer storage medium, computer program product, chip or communication system presented above is adapted to perform the corresponding method presented above. Therefore, the beneficial effects that can be achieved by a device, a computer storage medium, a computer software product, a microchip or a communication system, refer to the positive effects of the respective solution in the respective method presented above. Details are not described here again.

BRIEF DESCRIPTION OF THE DRAWINGS

[0190] Fig. 1 is a schematic structural diagram of a communication system according to one embodiment of the present application;

[0191] Fig. 2 is a schematic structural diagram of another communication system according to one embodiment of the present application;

[0192] FIG. 3 is a schematic diagram of a bearer between a first terminal and a second terminal according to one embodiment of the present application;

[0193] FIG. 4 is a schematic diagram of a bi-directional bearer between a first terminal and a second terminal according to one embodiment of the present application;

[0194] Fig. 5 is a block diagram of a communication device according to one embodiment of the present application;

[0195] FIG. 6 is a schematic flowchart 1 of a radio bearer configuration method according to one embodiment of the present application;

[0196] FIG. 7 is a schematic flowchart 2 of a radio bearer configuration method according to one embodiment of the present application;

[0197] FIG. 8 is a schematic flowchart 3 of a radio bearer configuration method according to one embodiment of the present application;

[0198] FIG. 9 is a schematic flowchart 4 of a radio bearer configuration method according to one embodiment of the present application;

[0199] FIG. 10 is a schematic flowchart 5 of a radio bearer configuration method according to one embodiment of the present application;

[0200] FIG. 11A and FIG. 11B are a schematic flowchart 6 of a radio bearer configuration method according to one embodiment of the present application;

[0201] FIG. 12 is a schematic flowchart 7 of a radio bearer configuration method according to one embodiment of the present application;

[0202] FIG. 13 is a schematic flowchart 8 of a radio bearer configuration method according to one embodiment of the present application;

[0203] FIG. 14 is a schematic flowchart 9 of a radio bearer configuration method according to one embodiment of the present application;

[0204] FIG. 15 is a schematic flowchart 10 of a radio bearer configuration method according to one embodiment of the present application;

[0205] FIG. 16 is a schematic flowchart 11 of a radio bearer configuration method according to one embodiment of the present application;

[0206] FIGS. 17A and 17B are a schematic flowchart 12 of a radio bearer configuration method according to one embodiment of the present application;

[0207] FIG. 18 is a schematic structural diagram of a radio bearer configuration device according to one embodiment of the present application;

[0208] FIG. 19 is a schematic structural diagram of another radio bearer configuration device according to one embodiment of the present application; and

[0209] FIG. 20 is a schematic structural diagram of a chip according to one embodiment of the present application.

Description of Embodiments

[0210] In order to clearly describe the technical solutions in the embodiments of the present application, the embodiments of the present application use terms such as "first" and "second" to distinguish between the same elements or similar elements that have basically the same functions and goals. For example, the first terminal and the second terminal are merely intended to distinguish between different terminals and are not intended to limit their sequence. One skilled in the art can understand that terms such as "first" and "second" do not limit the number or sequence of execution, and terms such as "first" and "second" do not indicate a specific difference.

[0211] It should be noted that in this application, the word "example" or "for example" is used to represent an example, illustration or description. Any embodiment or design scheme that is described as "example" or "for example" in this application should not be interpreted as more preferred (preferred) or having (having) more advantages than another embodiment or design scheme. The use of words such as "example" or "for example" is intended to represent a relative concept in a certain way.

[0212] The technical solutions in this application can be applied to various communication systems, for example, a long-term evolution (LTE) system, a frequency division duplex (FDD) system, a duplex communication with time LTE (time division duplex (TDD)), universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX), communication system, public land mobile network ( public land mobile network (PLMN), device to device (D2D) network system, machine to machine (M2M) network system, 5G communication system and vehicle Internet system.

[0213] The network architecture and service scenario described in the embodiments of the present application are intended to more clearly describe the technical solutions in the embodiments of the present application and do not represent limitations of the technical solutions presented in the embodiments of the present application. A person skilled in the art may be aware that with the development of network architecture and the advent of a new service scenario, the technical solutions presented in the embodiments of the present application are also applicable to similar technical problems. In the embodiments of the present application, an example is used for description in which the provided method is applied to an NR system or a 5G network.

[0214] As used herein, "at least one" means one or more, and "multiple" means two or more. The term "and/or" describes an association relationship for describing associated objects and represents that there may be three relationships. For example, A and/or B may represent the following cases: Only A exists, both A and B exist, and only B exists, where A and B can be singular or plural. The "/" symbol usually indicates an "or" relationship between related entities. "At least one of the following", or a similar expression thereof, means any association of the following, including any association of one or more of the following. For example, at least one of a, b, or c may be: a, b, c, a and b, a and c, b and c, or a, b and c, where a, b and c may be in singular or plural. In this specification, binding and association can have the same meaning.

[0215] Before describing the embodiments of the present application, the terms in the embodiments of the present application are first described.

[0216] (1) Sidelink (SL): A sidelink is defined for direct communication between terminals, namely, a link over which direct communication between terminals is performed without forwarding by a base station.

[0217] (2) Bypass link resource: The bypass link resource is a resource used to transmit bypass link service data and control information over the bypass link between terminals.

[0218] (3) Bypass link service data: Bypass link service data is service data or control information transmitted by any two terminals on the bypass link.

[0219] FIG. 1 is a schematic structural diagram of a communication system according to one embodiment of the present application. The communication system includes one or more first terminals 10 and one or more second terminals 20. It should be understood that Figure 1 shows one first terminal 10 and one second terminal 20.

[0220] There is a first interface used for direct communication between the first terminal 10 and the second terminal 20, and the first interface may be referred to as a PC5 interface. The transmission line which is on the PC5 interface and which is used for communication between the first terminal 10 and the second terminal 20 may be referred to as a bypass link.

[0221] The PC5 interface may use a dedicated bandwidth (eg, 5.9 GHz). The link used when the first terminal 10 communicates with the second terminal 20 via the PC5 interface may be called a bypass link. One or more radio bearers (RBs) may be established between the first terminal 10 and the second terminal 20. One or more radio bearers may be used separately to carry data and control information (e.g., Radio Resource Control (RRC) signaling). ))) between the first terminal 10 and the second terminal 20. In this embodiment of the present application, the radio bearer on the PC5 interface may be referred to as the bypass link radio bearer (SL RB). The SL RB includes a Signaling Radio Bearer (SRB) SL and a Data Radio Bearer (DRB). The SRB is the channel on which the system signaling message is actually transmitted, eg used for RRC signaling. DRB is the channel over which user data is actually transmitted.

[0222] In this embodiment of the present application, the bypass link radio bearer is identified by using the source address, destination address, and bypass link radio bearer information. The source address is information about the sender of the bypass link service transmitted over the bypass link radio bearer. The recipient address is information about the receiver of the bypass link service transmitted over the radio bearer of the bypass link. The bypass link radio bearer information may be either a bypass link radio bearer identifier or a logical channel identifier corresponding to the bypass link radio bearer.

[0223] For example, if the bypass link bearer is used by the first terminal 10 to send the bypass link service data to the second terminal 20, the source address is the layer 2 identifier of the first terminal 10, and the destination address is the layer 2 identifier of the second terminal 20.

[0224] In an optional implementation, the communication system shown in FIG. 1 further includes a network device 30 providing a service for the first terminal 10 and a network device 40 providing a service for the second terminal 20.

[0225] It should be understood that, as shown in FIG. 2, the network device 30 providing a service for the first terminal 10 and the network device 40 providing the service for the second terminal 20 may be the same network device 30.

[0226] Each interface between the first terminal 10 and the network device 30 and the interface between the second terminal 20 and the network device 40 may be referred to as a second interface. For example, the second interface may be a Uu interface and use the cellular network band (eg, 1.8 GHz).

[0227] The names of the first and second interfaces are merely examples. The names of the first interface and the second interface are not limited in this embodiment of the present application.

[0228] Because the bypass link radio bearer is identified by using the source address, the destination address, and the bypass link radio bearer information, in this embodiment of the present application, the bypass link radios can be classified into a bidirectional bearer and a unidirectional bearer. carrier.

[0229] Bidirectional bearer, as the name suggests, is a bypass link radio bearer that can be used by a sender to send bypass link service data over a bypass link radio bearer, and can be used by the sender to receive an RLC status report for bypass link service data over the bypass link radio bearer. It should be understood that if the sender sends the bypass link service data on the bypass link radio bearer, the receiver may receive the bypass link service data on the bypass link radio bearer. If the sender receives the RLC status report for the bypass link service data on the bypass link radio bearer, the receiver may send the RLC status report for the bypass link service data on the bypass link radio bearer.

[0230] Alternatively, the bypass link radio bearer may be used by the sender to receive the bypass link service data over the bypass link radio bearer and may be further used by the sender to send an RLC status report for the bypass link service data over the radio. bypass link carrier. It should be understood that if the sender receives the bypass link service data on the bypass link radio bearer, this means that the receiver can send the bypass link service data on the bypass link radio bearer. If the sender sends the RLC status report for the bypass link service data on the bypass link radio bearer, this means that the receiver can receive the RLC status report for the bypass link service data on the bypass link radio bearer.

[0231] For example, if bypass link bearer A is a bidirectional data bearer, bypass link radio bearer A may be used by the first terminal 10 to send bypass link service data A to the second terminal 20 and may be further used by the first by the terminal 10 to receive an RLC status report which is for bypass link service data A and which is sent by the second terminal 20 over the bypass link radio bearer A. Alternatively, the bypass link radio bearer A is used by the second terminal 20 to send the bypass link service B data to the first terminal 10, and may be further used by the second terminal 20 to receive an RLC status report that is for the bypass link service data B and which is sent by the first terminal 10 on the bypass radio bearer A.

[0232] A bearer bearer, as the name suggests, is a bypass link radio bearer that can be used by a sender to send bypass link service data via a bypass link radio bearer (meaning that a receiver can receive bypass link service data). bypass link bearer), or is used by the sender to send an RLC status report over the bypass radio bearer for bypass link service data received over another bypass link radio bearer (meaning that the receiver can receive, on the bypass link radio bearer, an RLC status report for the bypass link service data sent over the other bypass link radio bearer).

[0233] FIG. 3 is a schematic diagram in which the bypass link radio bearer between the first terminal 10 and the second terminal 20 is a bearer bearer. In this case, at least two bypass link radio bearers may be configured between the first terminal 10 and the second terminal 20, for example, bypass link radio bearer 1 and bypass link radio bearer 2. Bypass link radio bearer 1 is used by the first terminal 10 to send bypass link service data A to the second terminal 20. Bypass link radio bearer 2 is used by the second terminal 20 to send an RLC status report for bypass link service data A to the first terminal 10.

[0234] FIG. 4 shows a bypass link bidirectional radio bearer between a first terminal 10 and a second terminal 20.

[0235] It should be noted that the communication system shown in Fig. 1 may further include a core network. The network device 30 and the network device 40 may be connected to the core network. The core network may be a 4G core network (eg, an Evolved Packet Core (EPC) network, a 5G Core (5GC)) core network, or a core network in various future communication systems. It should be understood that the network device 30 and the network device 40 may be connected to the same core network. Of course, network device 30 and network device 40 may alternatively be connected to different core networks.

[0236] For example, the core network may be a 4G core network. Network device 30 or network device 40 may be an evolved NodeB (evolved NodeB, eNB or eNodeB) in a 4G system. The first terminal 10 and the second terminal 20 are terminals that can perform information transmission with the eNB. The ENB accesses the EPC network through the S1 interface.

[0237] For example, the core network may be a 5G core network. Network device 30 or network device 40 may be a Next Generation NodeB (gNB) in an NR system. The first terminal 10 and the second terminal 20 are terminals that can perform information transfer with the gNB. The GNB accesses the 5GC through the NG interface.

[0238] Of course, network device 30 or network device 40 may alternatively be a 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP) base station or may be a non-3GPP protocol base station.

[0239] There is a first transmission link between the network device 30 and the first terminal 10 or between the network device 40 and the second terminal 30. For example, the first transmission link may be a Uu link. The first terminal 10 and the second terminal 30 may transmit bypass link services to each other over the bypass link. The first terminal 10 may transmit the Uu uplink (UL) service to the network device 30 over the Uu link or may receive the Uu downlink (DL) service sent by the network device 30 over the Uu link.

[0240] Terminal 20 is a device with a wireless communication function. The terminal 20 can be deployed on land and includes an indoor or outdoor device, a portable device, or a vehicle-mounted device. Alternatively, terminal 20 may be deployed on the water (eg, on a ship) or may be deployed in the air (eg, on an aircraft, balloon, or satellite). A terminal, also referred to as user equipment (UE), mobile station (MS), mobile terminal (MT), terminal device, etc., is a device that provides voice transmission. and/or data connectivity for the user. For example, the terminal includes a portable device or a vehicle-mounted device having a wireless connection function. Currently, the terminal can be a mobile phone (mobile phone), tablet computer, laptop computer, PDA, mobile Internet device (MID)), wearable device (for example, smart watch, smart watch), bracelet or pedometer), a vehicle-mounted device (such as a car, bicycle, electric car, airplane, ship, train, or high-speed train), virtual reality (VR) device, augmented reality (AR) device, wireless terminal in industrial control, smart home device (such as refrigerator, TV, air conditioner or electricity meter), intelligent robot, workshop device, wireless terminal in self driving mode, wireless terminal in remote medical surgery (remote medical surgery), wireless terminal in smart grid (smart grid), wireless transport safety terminal, smart city wireless terminal, smart home wireless terminal, flying device (such as smart robot, hot air balloon, drone or airplane), etc. P. In an exemplary application scenario of the present application, a terminal device is a terminal device that often operates on land, such as a vehicle-mounted device. In the present application, for ease of description, a chip deployed in the aforementioned device, such as a System-On-a-Chip (SOC), baseband chip, or other chip having a communication function, may also be referred to as a terminal.

[0241] The terminal may be a vehicle having an appropriate communication function, a vehicle-mounted communication device, or other built-in communication device, or may be a user's portable communication device, including a mobile phone, tablet computer, or the like.

[0242] For example, in embodiments of the present application, the terminal may alternatively be a wearable device. A wearable device may also be referred to as a wearable smart device, and is a general term for wearable devices such as glasses, gloves, watches, clothing, and shoes that are developed by applying wearable technology in smart designs for everyday wear. A wearable device is a portable device that can be worn directly on the body or integrated into the wearer's clothing or accessory. A wearable device is a hardware device that realizes a powerful function based on software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured and large-sized devices that can realize full or partial functions independently of smartphones, such as smart watches or smart glasses, and devices that focus on only one type of application function and need to work with others. devices such as smartphones, such as various smart bracelets or smart jewelry to track physical signs.

[0243] A network device is an entity that is used in association with a terminal and may be configured to transmit or receive a signal. For example, a network device may be an Access Point (AP) in a WLAN, or may be an eNB or eNodeB in LTE, a relay station or access point, a vehicle-mounted device, a wearable device, a network device in a future 5G network, or a network device. device in the future evolved PLMN network.

[0244] In addition, in embodiments of the present invention, the network device provides a service to a cell, and the terminal communicates with the network device using a transmission resource (eg, a time domain resource, a frequency domain resource, or a time frequency resource) used in the cell. The cell may be a cell corresponding to a network device (eg, a base station). The cell may belong to a macro base station or may belong to a base station corresponding to a small cell. The small cell herein may include a metro cell, a micro cell, a pico cell, a femto cell, and the like. These small cells are characterized by small coverage and low transmission power, and are applicable for providing high-speed data transmission service.

[0245] FIG. 5 is a schematic diagram of a hardware structure of a communication device according to an embodiment of the present application. As for the hardware structures of the first terminal 10, the second terminal 20, the network device 30, and the network device 40 in this embodiment of the present application, refer to the structure shown in FIG. The communication device includes a processor 41, a communication line 44, and at least one transceiver 43.

[0246] The processor 41 may be a central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the solution program of the present application.

[0247] Link 44 may include a channel for transmitting information between the above components.

[0248] The transceiver 43 is any device, such as a transceiver, and is configured to communicate with another device or communication network, such as Ethernet, a radio access network (RAN), or a wireless local area network (wireless local area networks ( WLAN)).

[0249] Optionally, the communications device may further include a memory 42.

[0250] The memory 42 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, or a random access memory (RAM) or other a type of dynamic storage device that can store information and instructions. Alternatively, memory 42 may be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM), or other compact disc drive, optical disc storage device (including CD, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), magnetic disc media or other magnetic storage device, or any another medium that can be used to carry or store expected program code in the form of an instruction or data structure accessible to a computer. However, the memory 42 is not limited to this. The memory may exist independently and is connected to the processor through the communication line 44 . Alternatively, the memory may be integrated into the processor.

[0251] The memory 42 is adapted to store computer executable instructions for executing the solutions in this application, and the processor 41 controls the execution of the computer executable instruction. The processor 41 is configured to execute a computer executable instruction stored in the memory 42 to implement the radio bearer configuration method provided in the following embodiments of the present application.

[0252] Optionally, the computer execution instruction in this embodiment of the present application may also be referred to as an application program code. This is not specifically limited in this embodiment of the present application.

[0253] In a specific implementation, in an embodiment, processor 41 may include one or more CPUs, such as CPU 0 and CPU 1 in FIG.

[0254] In a specific implementation, in an embodiment, the communication device may include a plurality of processors, such as processor 41 and processor 45 in FIG. Each of the processors may be a single-core processor (single-CPU) or may be a multi-core processor (multi-CPU). Here, a processor may be one or more devices, circuitry, and/or processing cores configured to process data (eg, a computer program instruction).

[0255] The following is a detailed description with reference to FIG. 6 to 17A and 17B, the radio bearer configuration method provided in the embodiments of the present application.

[0256] It should be noted that in the following embodiments of the present application, the names of messages between network elements, the names of parameters in messages, and the like. are merely examples, and may have other names in a particular implementation. This is not specifically limited in this embodiment of the present application.

[0257] It should be noted that mutual references can be made between the embodiments of the present application. For example, for the same or similar steps, mutual reference can be made between method embodiments, communication system embodiments, and apparatus embodiments. It's not limited.

[0258] Note that, in the radio bearer configuration method in the embodiments of the present application, the steps performed by the second terminal may also be performed by the chip applied to the second terminal, and the steps performed by the first terminal may also be performed by the chip applied to the first terminal. . An example in which the radio bearer configuration method is performed by the first terminal and the second terminal is used in the following embodiments.

Embodiment 1:

[0259] FIG. 6 is a schematic block diagram of an interaction in a radio bearer configuration method according to one embodiment of the present application. The method includes the following steps.

[0260] Step 101: The second terminal determines that the first bypass link radio bearer and the second bypass link radio bearer that are used during communication between the second terminal and the first terminal are interconnected with each other. The first bypass link radio bearer is used by the first terminal to send the first bypass link service data to the second terminal, and the second bypass link radio bearer is used by the second terminal to send the first radio link control (RLC) control status report. ) for the first bypass link service data to the first terminal.

[0261] It should be understood that each of the modes of operation at the RLC level of the first bypass link radio bearer and the second bypass link radio bearer is an Acknowledged Mode (AM) mode, and the first bypass link radio bearer and the second bypass link radio bearer are bearers.

[0262] The acknowledged mode indicates that the receiver should return an RLC status report for the received RLC PDU to the sender.

[0263] For example, in this embodiment of the present application, the first bypass link radio bearer includes at least one first RLC entity and at least one first logical channel. The second bypass link radio bearer includes at least one second RLC entity and at least one second logical channel.

[0264] In an exemplary example, the first bypass link radio bearer may further include a first Packet Data Convergence Protocol (PDCP) entity, and the second bypass link radio bearer may further include a second PDCP entity .

[0265] It should be noted that in this embodiment of the present application, one bypass link radio bearer includes at least one RLC entity has the following meaning: The bypass link radio bearer may include only one RLC entity, and the RLC entity is configured to send the bypass link service data or the RLC status report. In order to ensure reliable transmission of service data over the bypass link, the Packet Duplication function can be configured for the bypass link bearer radio. In this case, one bypass link bearer must have at least two RLC entities, one of the at least two RLC entities is used to transmit data of the bypass link service, and an RLC entity other than the RLC entity in at least two RLC entities is configured to transmit the bypass link service data obtained by duplicating the bypass link service data.

[0266] In an optional implementation, the second bypass link radio bearer is further used by the second terminal to send second bypass link service data to the first terminal. The first bypass link radio bearer is used by the first terminal to send a second RLC status report for the second bypass link service data to the second terminal.

[0267] In this embodiment of the present application, the RLC status report is used to confirm the data reception status of the bypass link service. Specifically, the RLC status report is used by the receiver to indicate to the sender whether the bypass link service data was received correctly, in other words, which bypass link service data was successfully received and which bypass link service data was not successfully received. For example, the first RLC status report sent on the second bypass link radio bearer is used to indicate whether data of the first bypass link service is received correctly. The second RLC status report sent on the first bypass link radio bearer is used to indicate whether the second bypass link service data is received correctly.

[0268] Step 102: The second terminal sends the first message to the first terminal. The first message includes first indication information, and the first indication information is used to indicate that the first bypass link radio bearer is associated with the second bypass link radio bearer.

[0269] In a specific implementation, the first indication information is specifically used to indicate the first terminal to determine that the first bypass link radio bearer is associated with the second bypass link radio bearer.

[0270] It should be understood that the first message may be a bypass link RRC reconfiguration message or a bypass link RRC reconfiguration completed message.

[0271] Step 103: The first terminal receives the first message from the second terminal.

[0272] Step 104: The first terminal determines, based on the first indication information, that the first RLC status report is an RLC status report for the first bypass link service data.

[0273] This embodiment of the present application provides a radio bearer configuration method. In the prior art, the first terminal is unaware that the first bypass link radio bearer is associated with the second bypass link radio bearer. Therefore, the first terminal cannot determine the bypass link service data on the bypass link radio bearer to which the RLC status report received by the first terminal corresponds, and the RLC status reports for various bypass link service data sent by the first terminal may conflict. with each other or may be misunderstood. Since the bypass link service data of the first terminal increases, the reliability of the bypass link communication cannot be guaranteed. In this embodiment of the present application, the second terminal determines that the first bypass link radio bearer and the second bypass link radio bearer that are used during communication between the second terminal and the first terminal are interconnected with each other, and sends the first indication information to the first terminal for indicating that the first bypass link radio bearer is associated with the second bypass link radio bearer, so that the first terminal determines to use the first bypass link radio bearer to send the first bypass link service data to the second terminal, and if the first terminal receives the first RLC status report on the second bypass link radio bearer, the first terminal can determine based on the above relationship that the first RLC status report is for the first bypass link service data on the first bypass link radio bearer to guarantee to assume that the bypass link radio bearer between the first terminal and the second terminal can support the AM transmission method at the RLC layer. In addition, the method in this embodiment helps the first terminal and the second terminal determine, based on the first RLC status report, whether to retransmit the data of the first bypass link service, thereby ensuring the reliability of transmission of the bypass link service data.

[0274] In an optional embodiment, as shown in FIG. 7, before step 101, the method provided in this embodiment of the present application further includes the following steps.

[0275] Step 105: The first terminal sends a second message to the second terminal. The second message includes any one or more of the following information: a first bypass link radio bearer identifier, an identifier of at least one first logical channel in the first bypass link radio bearer, or Quality of Service (QoS) information , tied to the first radio bearer bypass link.

[0276] For example, the second message may be a bypass link RRC reconfiguration message.

[0277] In this embodiment of the present application, the QoS information may be a specific QoS Parameter Set or may be an index of a QoS Parameter Set. The QoS parameter in the QoS parameter set includes, but is not limited to, guaranteed transmission rate, maximum transmission rate, delay requirement, reliability requirement, priority, and communication distance. The QoS parameter set index includes a 5G QoS identification (5QI) ID, a PC5 QoS identification (PQI) ID, and a QoS Flow Identification (QFI) ID.

[0278] It should be noted that in this embodiment of the present application, the QoS information associated with the same bypass link radio bearer includes a QoS parameter group. If the QoS information associated with one bypass link radio bearer includes a QoS parameter group, when the first terminal sends to the second terminal the QoS information associated with the first bypass link radio bearer, the first terminal must indicate that the QoS information associated with the first bypass link radio bearer includes a group of QoS parameters. For example, the QoS information associated with the first bypass link radio bearer includes at least QFI 1, QFI 2, and QFI 3. When the QoS information associated with the first bypass link radio bearer is sent to the second terminal, the first terminal should indicate that QFI 1, QFI 2 and QFI 3 belong to the same group or that the three QFIs need to be mapped to the same bypass first radio bearer. In addition, when the network device subsequently requests to establish a second bypass link radio bearer, the second terminal must also indicate to the network device that QFI 1, QFI 2 and QFI 3 belong to the same group, or that the three QFIs are to be assigned to one and the same first bypass link carrier radio.

[0279] It should be understood that QFI 1, QFI 2, and QFI 3 may alternatively be QoS Parameter Set 1, QoS Parameter Set 2, and QoS Parameter Set 3.

[0280] The identifier of the first bypass link radio bearer is used to determine the first bypass link radio bearer.

[0281] In an optional implementation, before step 105, the method presented in this embodiment of the present application further includes the following: The first terminal and the second terminal establish a first bypass link bearer.

[0282] For example, the process of establishing a first bypass link radio bearer between a first terminal and a second terminal may be implemented as follows: The first terminal sends a request message to the second terminal used to configure the first bypass link radio bearer. The request message used to configure the first bypass link radio bearer includes at least one of the following information: QoS information associated with the first bypass link radio bearer and first bypass link radio bearer configuration information. The second terminal sets up and/or configures the first bypass link radio bearer based on the request message used to configure the first bypass link radio bearer.

[0283] The configuration information of the first bypass link radio bearer includes at least configuration information required when the second terminal side configures the first bypass link radio bearer.

[0284] The configuration information of the first bypass link radio bearer includes at least one of the following information: a first bypass link radio bearer identifier, a configuration of the first PDCP entity in the first bypass link radio bearer, a configuration of at least one first RLC. an object in the first bypass link radio bearer, an identifier of at least one first logical channel in the first bypass link radio bearer, and first indication information. The first indication information is used to indicate an operation mode at the radio link control (RLC) layer of the first bypass link radio bearer. It should be understood that the mode of operation at the RLC level of the first bypass link radio bearer may be the AM mode.

[0285] For example, the configuration of the first PDCP entity includes information used to configure the first PDCP entity. For example, the configuration of the first PDCP entity may include a send-related parameter and a receive-related parameter of the PDCP entity, or may include a receive-related PDCP entity parameter. The configuration of the first RLC entity includes information used to configure the first RLC entity. For example, the configuration of the first RLC entity may include a send associated parameter and a receive associated parameter of the RLC entity, or may include only a receive associated parameter of the RLC entity.

[0286] In this embodiment of the present application, the QoS information associated with the first bypass link radio bearer and the first bypass link radio bearer configuration information can be configured for the first terminal by the network device accessed from the first terminal. . Of course, alternatively, the first terminal can obtain from the first terminal's preconfiguration information the QoS information associated with the first bypass link radio bearer and the first bypass link radio bearer configuration information. This is not limited in this embodiment of the present application. It should be understood that the identifier of the first bypass link radio bearer or the identifier of at least one first logical channel may be allocated autonomously by the first terminal, or may be allocated by a network device to which the first terminal has access, or may be configured by using pre-alarm information. configuration.

[0287] Step 106: The second terminal receives the second message from the first terminal.

[0288] It should be understood that after receiving the second message, the second terminal may configure a second bypass link radio bearer based on the second message.

[0289] How the second terminal configures the second bypass link radio bearer based on the second message is described in the following embodiments.

[0290] Example 1: The second terminal establishes a second bypass link radio bearer by communicating with a network device.

[0291] Still referring to Fig. 7, as shown in Fig. 8, after step 106, the method provided in this embodiment of the present application further includes the following steps.

[0292] Step 107: The second terminal sends a third message to the network device, wherein the third message is used to request the network device to configure the second bypass link bearer radio, and the third message includes at least QoS information.

[0293] It should be understood that the network device in step 107 and step 108 is the network device accessed by the second terminal, and the network device accessed by the second terminal may be the same or different from the network device accessed first terminal. This is not limited in this embodiment of the present application.

[0294] For example, the second terminal may send a third message to the network device on the Uu channel.

[0295] Step 108: The network device receives the third message from the second terminal. It should be understood that after step 108, the network device sends a fourth message to the second terminal.

[0296] Step 109: The second terminal receives the fourth message from the network device. The fourth message includes QoS information and first configuration information that belongs to the second bypass link radio bearer and is associated with the QoS information. The first configuration information is used to configure the second bypass link radio bearer.

[0297] For example, the first configuration information includes at least one of the following information: configuration information of the second PDCP entity on the second bypass link radio bearer, configuration information of the second RLC entity on the second bypass link radio bearer, and configuration information at least one second logical channel in the second bypass link radio bearer.

[0298] In a first optional implementation, the fourth message further includes at least one of the following information: a second bypass link radio bearer identifier, an identifier of at least one second logical channel, and a first anchor relationship. The first anchor relationship includes an anchor relationship between the QoS information and the identifier of the second bypass link radio bearer and/or the anchor relationship between the QoS information and the identifier of at least one second logical channel.

[0299] Accordingly, in the exemplary embodiment shown in FIG. 8, step 101 provided in this embodiment of the present application can be specifically implemented as follows: The second terminal determines, based on the fourth message, that the first bypass link radio bearer is interconnected with the second bypass link radio bearer.

[0300] It should be understood that if the second terminal requests the network device to establish a second bypass link radio bearer, the fourth message carries the second bypass link radio bearer identifier and/or the identifier of at least one second logical channel. In this case, the second terminal may determine that the first bypass link radio bearer is associated with the second bypass link radio bearer. If the fourth message includes the first anchor relationship, the second terminal determines based on the first anchor relationship that the first bypass link radio bearer is associated with the second bypass link radio bearer.

[0301] It can be understood that since the first anchor relationship includes the anchor relationship between the QoS information and the second bypass link radio bearer ID and/or the anchor relationship between the QoS information and the ID of at least one second logical channel, it indicates, that the ID of the at least one second logical channel or second bypass link radio bearer has the same QoS information as the first bypass link radio bearer. In this case, the second terminal may determine that the first bypass link radio bearer is associated with the second bypass link radio bearer.

[0302] In a second possible implementation, if the third message further includes a first bypass link radio bearer identifier and/or an identifier of at least one first logical channel, the fourth message further includes a second anchor relationship. The second anchor relationship includes an anchor relationship between the first bypass link radio bearer information and the second bypass link radio bearer information. As shown in FIG. 9, step 101 in this embodiment of the present application can be specifically implemented as follows: The second terminal determines based on the second anchor relationship that the first bypass link radio bearer is interconnected with the second bypass link radio bearer. Information about the first bypass link radio bearer includes an identifier of the first bypass link radio bearer and/or an identifier of at least one first logical channel in the first bypass link radio bearer. Information about the second bypass link radio bearer includes an identifier of at least one second logical channel in the second bypass link radio bearer and/or an identifier of the second bypass link radio bearer.

[0303] It can be understood that the second anchor relationship includes any one or more of the following information: anchor relationship between the first bypass link radio bearer ID and the bypass link second radio bearer ID, the anchor relationship between the first bypass link radio bearer ID bypass link and an identifier of at least one second logical channel in the second bypass link radio bearer, an anchoring relationship between the second bypass link radio bearer identifier and an identifier of at least one second logical channel in the first bypass link radio bearer, and a binding relationship between the identifier of at least one second logical channel and the identifier of at least one second logical channel.

[0304] Example 2: The second terminal sets up a second bypass link radio bearer using preconfiguration information.

[0305] Still referring to FIG. 7, as shown in FIG. 10, step 101 provided in this embodiment of the present application can be specifically implemented as follows: The second terminal determines, based on the second message and the preconfiguration information, that the first the bypass link radio bearer is coupled to the second bypass link radio bearer. The preconfiguration information includes at least QoS information and second configuration information that is related to the second bypass link radio bearer and that is related to the QoS information. The second configuration information is used to configure the second bypass link radio bearer. It should be understood that the pre-configuration information in this document is the pre-configuration information in the second terminal.

[0306] For example, the second configuration information includes at least one of the following information: configuration information of the second PDCP entity on the second bypass link radio bearer, configuration information of the second RLC entity on the second bypass link radio bearer, and configuration information at least one second logical channel in the second bypass link radio bearer. In this embodiment of the present application, the information elements in the second configuration information and the first configuration information are completely identical. However, the values of the same items in the second configuration information and the first configuration information may be the same or different. For example, the configuration timer value for the second PDCP entity in the first configuration information is different from the configuration timer value for the second PDCP entity in the second configuration information.

[0307] For example, the PDCP entity configuration information may include one or more of the following information: PDCP sequence number (sequence number (SN)) length, reset timer length, header compression algorithm, reorder timer length, indication information indicating whether the whether integrity protection in the bypass link radio bearer, indication information indicating whether the radio bearer is encrypted, and indication information indicating whether the bypass link radio bearer allows out-of-order delivery. The RLC bearer configuration information may include one or more of the following information: pointer information indicating whether the RLC entity configuration is RLCAM or RLCUM, RLCSN length, and reassembly timer length. If the RLC entity configuration is RLCAM, the length of the status inhibit timer, the length of the poll retransmission timer, the number of protocol data units (PDUs), the number of poll bytes, and optionally include the maximum number of retransmissions. The logical channel configuration information may include one or more of the following data: logical channel priority, Prioritized Bit Rate (PBR) of the logical channel, marker segment size (segment size duration), logical channel, and logical channel group to which belongs to a logical channel.

[0308] In an exemplary embodiment, the preconfiguration information further includes at least one of the following information: a second bypass link radio bearer identifier, an identifier of at least one second logical channel, and a third anchor relationship. The third anchor relationship includes an anchor relationship between the QoS information and the identifier of the second bypass link radio bearer and/or an anchor relationship between the QoS information and the identifier of at least one second logical channel. In this embodiment of the present application, that the second terminal determines based on the second message and the preconfiguration information that the first bypass link radio bearer is associated with the second bypass link radio bearer includes: The second terminal determines based on the third an anchor relationship that the first bypass link radio bearer is interconnected with the second bypass link radio bearer.

[0309] In another possible implementation, the preconfiguration information further includes at least one of the following information: a fourth binding relationship. The fourth anchor relationship includes an anchor relationship between the first bypass link radio bearer information and the second bypass link radio bearer information. That the second terminal determines, based on the second message and the preconfiguration information, that the first bypass link radio bearer is associated with the second bypass link radio bearer includes: The second terminal determines, based on the fourth binding relation, that the first radio bearer is the bypass link carrier is coupled to the second bypass link carrier radio.

[0310] For example, in this embodiment of the present application, that the first indication information is used to indicate that the first bypass link radio bearer is interconnected with the second bypass link radio bearer, specifically includes: there is a binding relationship between information about a first bypass link radio bearer and information about a second bypass link radio bearer.

[0311] It should be noted that, in this embodiment of the present application, that the first bypass link radio bearer is interconnected with the second bypass link radio bearer means that the first bypass link radio bearer identifier is the same as identifier of the second radio bearer bypass link. Alternatively, the information about the third configuration of the second bypass link radio bearer may further carry an identifier of the first bypass link radio bearer or an identifier of at least one first logical channel. Thus, the first terminal and the second terminal can determine that the first bypass link radio bearer is associated with the second bypass link radio bearer. The third bypass link second radio bearer configuration information is sent by the second terminal to the first terminal by using the first message. The third configuration information of the second bypass link radio bearer includes at least one of the following information: configuration information of the second PDCP entity in the second bypass radio bearer and configuration information of the second RLC entity in the second bypass link radio bearer. The second PDCP entity configuration information that is included in the third configuration information may include only the PDCP entity receive parameter configuration information, and the second RLC entity configuration information that is included in the third configuration information may include only the RLC entity receive parameter configuration information.

[0312] It should be understood that the above example describes that a network device accessed by a second terminal allocates a second bypass link radio bearer identifier and/or an identifier of at least one second logical channel to the second terminal. Of course, in this embodiment of the present application, the identifier of the second bypass link radio bearer and/or the identifier of at least one second logical channel may alternatively be allocated autonomously by the second terminal. In other words, the second terminal autonomously determines the identifier of the second bypass link radio bearer and/or the identifier of at least one second logical channel.

[0313] It should be noted that in an embodiment in which the second terminal autonomously determines the identity of the second bypass link radio bearer and/or the identity of at least one second logical channel, the fourth message or preconfiguration information of the second terminal may not carry the identity of the second a radio bearer bypass link and an identifier of at least one second logical channel. In addition, if the fourth message carries only the identifier of the second bypass link radio bearer, the second terminal may autonomously determine the identifier of at least one second logical channel. If the fourth message only carries an identifier of at least one second logical channel, the second terminal may autonomously determine the identifier of the second bypass link radio bearer.

[0314] In an exemplary embodiment, that the first indication information is used to indicate that the first bypass link radio bearer is interconnected with the second bypass link radio bearer, specifically includes: the first indication information includes a second radio bearer identifier - bypass link carrier and/or identifier of at least one second logical channel. The first terminal may determine, based on the fact that the second bypass link radio bearer ID is the same as the first bypass link radio bearer ID, that the second bypass link radio bearer is associated with the first bypass link radio bearer. . Alternatively, the first terminal may determine, based on the fact that the second logical channel identifier in the second bypass link radio bearer is the same as the first logical channel identifier in the first bypass link radio bearer, that the second radio bearer is the bypass link carrier is coupled to the first bypass link carrier radio.

[0315] It should be understood that in the above example, when the first terminal requests the second terminal to configure the second bypass link radio bearer, the first terminal and the second terminal have established the first bypass link radio bearer. In another example, the first terminal and the second terminal have set up two bypass link radio bearers, namely bypass link radio bearer 1 and bypass link radio bearer 2. If the first terminal needs to transmit new bypass link service data to the second terminal, the first terminal may first request the network device to send the configuration information used to establish the first bypass link radio bearer, so that the first terminal first establishes the first bypass link radio bearer connections. with the second terminal, and after establishing the first bypass link radio bearer, the first terminal may request the second terminal to re-establish the second bypass link radio bearer. In this case, if the first bypass link second radio bearer configuration information is sent by the network device of the second terminal, the network device may assign the same identification information to the second bypass link radio bearer and the first bypass link or network radio bearer. the device may assign the same identifier to at least one first logical channel and at least one second logical channel.

[0316] In an exemplary embodiment, when the identifier of the second bypass link radio bearer is the same as the identifier of the first bypass link radio bearer and/or the identifier of at least one second logical channel is the same as the identifier of the at least one first logical channel, step 101 may be specifically implemented as follows: The second terminal determines that the first bypass link radio bearer is associated with the second bypass link radio bearer. The third message further includes an identifier of the second bypass link radio bearer and/or an identifier of at least one second logical channel in the second bypass link radio bearer.

[0317] In another possible implementation, the identifier of the second bypass link radio bearer is the same as the identifier of the first bypass link radio bearer, and/or the identifier of at least one second logical channel is the same as the identifier of at least at least one first logical channel. The preconfiguration information further includes at least one of the following information: a second bypass link radio bearer identifier, an identifier of at least one second logical channel, and a fifth anchor relation. The fifth anchor relationship includes an anchor relationship between the QoS information and the identifier of the second bypass link radio bearer and/or an anchor relationship between the QoS information and the identifier of at least one second logical channel. Accordingly, step 101 can be implemented as follows: The second terminal determines, based on the fifth anchor relation, that the first bypass link radio bearer is associated with the second bypass link radio bearer.

[0318] In an exemplary embodiment, with reference to Fig. 8 or Fig. 9, as shown in Fig. 11A and Fig. 11B, the method presented in this embodiment of the present application further includes the following steps.

[0319] Step 110: The second terminal sends to the network device at least one of the following information: source address information of the second bypass link radio bearer, information of the destination address of the second bypass link radio bearer, and indication information indicating that the mode of operation at the RLC layer of the second bypass link radio bearer is the AM mode.

[0320] The source address information of the second bypass link radio bearer is used to determine the sender that sends the first RLC status report or second bypass link service data over the second bypass link radio bearer. The destination address information of the second bypass link radio bearer is used to determine the receiver which receives the first RLC status report or second bypass link service data.

[0321] Step 111: The network device receives from the second terminal at least one of the following information: source address information of the second bypass link radio bearer, second bypass link radio bearer address information, and indication information indicating that the mode of operation at the RLC level of the second radio bearer bypass link - AM mode.

[0322] It should be understood that the information sent by the second terminal to the network device in step 110 may be carried in a third message. Of course, the information sent by the second terminal to the network device in step 110 may alternatively be carried in a message other than the third message and separately sent to the network device.

[0323] It should be understood that the network device can determine, by performing steps 110 and 111, which terminal is the receiver and which terminal is the sender on the second bypass link radio bearer that the second terminal requests to establish. For example, in this embodiment of the present application, the source address information of the second bypass link radio bearer may be a layer 2 ID (Source Layer 2 ID) of the second terminal or a layer 2 ID index of the second terminal. The destination address information of the first bypass link radio bearer may be a layer 2 identifier of the first terminal or an index of the layer 2 identifier of the first terminal.

[0324] Step 112: The second terminal receives from the network device at least one of the following information: second bypass link radio bearer source address information and bypass link second radio bearer address information.

[0325] In another exemplary embodiment, still with reference to Fig. 11A and Fig. 11B, the method presented in this embodiment of the present application further includes the following step:

[0326] Step 113: The second terminal sends to the first terminal at least one of the following information: source address information of the second bypass link radio bearer, destination address information of the second bypass link radio bearer, and third bypass second radio bearer configuration information. a communication link, wherein the third configuration information belongs to the first configuration information or the second configuration information.

[0327] It should be understood that the information sent by the second terminal to the first terminal in step 113 may be carried in the first message or, of course, may be sent to the first terminal by using a separate message.

[0328] It should be understood that the third configuration information may be first or second configuration information. The first configuration information or the second configuration information not only includes configuration information required when the second terminal configures the second bypass link radio bearer, but also includes configuration information required when the first terminal configures the second bypass link radio bearer. . Therefore, the third configuration information may alternatively be configuration information needed when the first terminal configures the second bypass link radio bearer.

[0329] In another optional embodiment, with reference to Fig. 6, as shown in Fig. 12, the method presented in this embodiment of the present application further includes the following step:

[0330] Step 114: The second terminal configures at least one first RLC entity on the first bypass link radio bearer of the second terminal and at least one second RLC entity on the second bypass link radio bearer of the second terminal so that they are interconnected together.

[0331] Accordingly, in yet another optional embodiment, as shown in FIG. 12, the method presented in this embodiment of the present application may further include the following step:

[0332] Step 115: At least one first RLC entity on the first bypass link radio bearer sends a first RLC status report and second indication information to at least one second RLC entity on the second bypass link radio bearer. Alternatively, at least one first RLC entity on the first bypass link radio bearer sends a second RLC status report and third indication information to at least one second RLC entity on the second bypass link radio bearer.

[0333] The second indication information is used to indicate that the first RLC status report is an RLC status report for the first bypass link service data received by the second terminal. The third indication information is used to indicate that the second RLC status report is an RLC status report that is for the second bypass link service data and is sent by the first terminal.

[0334] It should be understood that after the first terminal determines that the first bypass link radio bearer is interconnected with the second bypass link radio bearer, the first terminal may send data of the first bypass link service to the second terminal by using the first radio bearer - the bypass link bearer, and receive, by using the second bypass link radio bearer, the first RLC status report which is for the first bypass link service data and sent by the second terminal. Alternatively, the second terminal may send the second bypass link service data to the first terminal using the second bypass link radio bearer and receive, by using the first bypass link radio bearer, the second RLC status report that is for the second data bypass link service and which is sent by the first terminal on the second bypass link radio bearer.

[0335] With reference to Fig. 6, as shown in Fig. 13, in an optional embodiment, the method presented in this embodiment of the present application further includes the following steps.

[0336] Step 116: The second terminal determines that the QoS flow associated with the first bypass link radio bearer or the second bypass link radio bearer is changed.

[0337] In this embodiment of the present application, that the QoS flow associated with the first bypass link radio bearer or the second bypass link radio bearer is changed means that the number of QoS flows mapped to the first bypass link radio bearer communication line or the second radio bearer of the bypass link, increases or decreases. An anchor relationship between the QoS flow and the bypass link radio bearer may be configured by the network device or may be configured in the preconfiguration information. When a new QoS flow service arrives, the number of QoS flows associated with the bypass link radio bearer increases accordingly. When the QoS flow service ends, the number of QoS flows associated with the bypass link radio bearer decreases accordingly.

[0338] In the example, step 116 in this embodiment of the present application may be implemented as follows: The first terminal sends a sixth message to the second terminal, the sixth message being used to indicate that the QoS flow associated with the first bypass link radio bearer , changes. The second terminal receives the sixth message from the first terminal. Thus, the second terminal can determine, using the sixth message, that the QoS flow on the first bypass link radio channel is changing. Since the first bypass link radio bearer is associated with the second bypass link radio bearer, the second terminal can determine that the QoS flow over the second bypass link radio bearer is changing.

[0339] In another example, step 116 in this embodiment of the present application may be implemented as follows: The second terminal autonomously increases or decreases the number of QoS flows associated with the second bypass link radio bearer.

[0340] Step 117: The second terminal sends a fifth message to the first terminal or network device, the fifth message being used to indicate a change in the QoS flow associated with the first bypass link radio bearer or the second bypass link radio bearer.

[0341] It should be understood that in step 117, the first terminal or network device may increase or decrease, in a timely manner, the number of QoS flows associated with the first bypass link radio bearer or the second bypass link radio bearer.

[0342] It should be understood that if the fifth message instructs the first terminal or network device to increase the number of QoS flows associated with the first bypass link radio bearer or the second bypass link radio bearer, the first terminal or network device increases the number of QoS flows, associated with the first radio bearer of the bypass link or the second radio bearer of the bypass link. If the fifth message instructs the first terminal or network device to decrease the number of QoS flows associated with the first bypass link radio bearer or the second bypass link radio bearer, the first terminal or network device reduces the number of QoS flows associated with the first bypass radio bearer. links or a second radio carrier bypass link.

[0343] It should be noted that in this embodiment of the present application, the QoS flow currently mapped to the bypass link radio bearer is used as a reference to increase the number of QoS flows over the bypass link radio bearer and decrease the number of QoS flows in the radio carrier of the bypass link.

Embodiment 2:

[0344] As shown in FIG. 14, an embodiment of the present application provides a radio bearer configuration method including the following steps.

[0345] Step 201: The first terminal determines to establish or configure a bypass link radio bearer between the first terminal and the second terminal.

[0346] Step 202: The first terminal sends the first message to the second terminal. The first message includes at least one of the following information: quality of service (QoS) information associated with a bypass link radio bearer between the second terminal and the first terminal, and first bypass link radio bearer configuration information. The first configuration information includes at least one of the following information: first indication information and an indication of the bearer type. The first indication information is used to indicate the mode of operation at the radio link control (RLC) layer of the bypass link radio bearer, and the channel type indication is used to indicate that the bypass link radio bearer is a bidirectional bearer.

[0347] It should be understood that if a bypass link bearer is established between the first terminal and the second terminal, the first terminal must configure the bypass link bearer on the first terminal side, and the second terminal must configure the bypass link bearer on the second terminal. Therefore, when the first terminal sends the first message, the first terminal has completed configuration of the bypass link bearer by the first terminal, or when the first terminal sends the first message, the first terminal sets up the bypass link bearer.

[0348] For example, the first message may be a bypass link RRC reconfiguration message.

[0349] For example, the first configuration information may further include a bypass link radio bearer identifier, configuration information of a PDCP entity in the bypass radio bearer, configuration information of at least one RLC entity or at least two RLC entities in the radio bearer the bypass link carrier, and the logical channel identifier in the bypass link radio bearer.

[0350] Step 203: The second terminal receives the first message from the first terminal.

[0351] Step 204: The second terminal sets up or configures a bypass link radio bearer based on the first message.

[0352] It should be understood that since the bypass link radio bearer is established between the first terminal and the second terminal, that is, the two ends of the bypass link radio bearer are respectively configured by the first terminal and the second terminal, the first terminal configures the part that relates to the radio bearer the bypass link carrier and is configured by the first terminal, and the second terminal sets or configures, based on the first message, the bypass link radio bearer portion and is configured by the second terminal. The bypass link radio bearer is a bi-directional bearer.

[0353] According to the radio bearer configuration method provided in this embodiment of the present application, in this method, the first terminal sends a first message to the second terminal, so that the second terminal can set, based on the first message, a bypass link radio bearer that satisfies the QoS requirement to ensure that the bypass link service data transmitted over the bypass link radio bearer can satisfy the QoS requirement to reliably transmit the bypass link service data. Further, if the bypass link bearer is a bidirectional bearer, the second terminal may determine that the bypass link service bearer may be used to send the bypass link service data to the first terminal, and the bypass link service bearer may further be used to receive an RLC status report for bypass link service data from the first terminal. Alternatively, the second terminal may determine that the bypass link service bearer may be used to receive the bypass link service data from the first terminal, and the bypass link service bearer may further be used to send an RLC status report for the service data. bypass link to the first terminal.

[0354] Example 1: One RLC entity or two RLC entities included in a bypass link radio bearer are associated with one logical channel.

[0355] It can be understood that when the mode of operation at the RLC level of the bypass link radio bearer is AM, the bypass link radio bearer includes one RLC entity. When the mode of operation at the RLC layer for the bypass link radio bearer is UM, the bypass link radio bearer includes two RLC entities.

[0356] If the packet duplication function is configured for the bypass link radio bearer, the bypass link radio bearer includes two RLC entities (if the RLC mode of operation for the bypass link radio bearer is AM) and each RLC entity associated with one logical channel, or the bypass link radio bearer includes four RLC entities (if the mode of operation at the RLC layer of the bypass link radio bearer is UM), and one RLC entity used for sending, and one RLC entity, used for receiving are associated with one logical channel. The number of RLC entities included in the bypass link radio bearer may vary depending on the various modes of operation at the RLC layer. Details are described below for different cases.

[0357] Case 1: When the mode of operation at the RLC layer is AM, the bypass link radio bearer includes at least one RLC entity, and at least one RLC entity is associated with one logical channel.

[0358] At least one RLC entity may be configured to send bypass link service data, and may be configured to receive an RLC status report for bypass link service data. Alternatively, the at least one RLC entity may be configured to receive bypass link service data, and may be configured to send an RLC status report for the bypass link service data. The logical channel associated with at least one RLC entity may be configured to send bypass link service data, and may be configured to receive an RLC status report for the bypass link service data. Alternatively, the logical channel associated with the at least one RLC entity may be configured to receive bypass link service data, and may be configured to send an RLC status report for the bypass link service data.

[0359] It should be understood that the at least one RLC entity includes an RLC entity that sends original bypass link service data and an RLC entity that sends duplicate bypass link service data. Of course, the at least one RLC entity may only include the RLC entity that sends the original bypass link service data. For example, at least one RLC entity includes RLC entity 1 and RLC entity 2. RLC entity 1 is configured to send original bypass link service data, and RLC entity 2 is configured to send duplicate bypass link service data.

[0360] Case 2: When the mode of operation at the RLC layer is an unacknowledged mode (unacknowledged mode, UM), the bypass link radio bearer includes at least two RLC entities, and at least two RLC entities are associated with one logical channel.

[0361] It should be understood that UM means that the recipient cannot return an RLC status report to the sender.

[0362] If the bypass link radio bearer includes at least two RLC entities, at least one of the at least two RLC entities is configured to send bypass link service data, and at least one of at least of the two entities, the RLC is configured to receive bypass link service data. The bypass link service data can be duplicated regardless of whether the bypass link service data is sent or the bypass link service data is received. Therefore, the at least two RLC entities further include an RLC entity configured to send duplicate bypass link service data. Similarly, the at least two RLC entities further include an RLC entity configured to receive duplicate bypass link service data. One logical channel associated with at least two RLC entities is configured to send bypass link service data, and can be configured to receive bypass link service data.

[0363] For example, at least two RLC entities include RLC entity 11, RLC entity 12, RLC entity 13, and RLC entity 14. The RLC entity 11 is configured to send bypass link service data A, and the RLC entity 12 is configured to send duplicate bypass link service data A. The RLC entity 13 is configured to receive data B of the bypass link service, and the RLC entity 14 is configured to receive duplicated data of the bypass link B service. In this embodiment of the present application, the original data of the bypass link service is the same as the duplicated service data. bypass line.

[0364] In this embodiment of the present application, the bypass link radio bearer identifier and/or the logical channel identifier in the bypass link radio bearer are unique in the connection between the second terminal and the first terminal. The connection between the second terminal and the first terminal is identified by using the first identifier. For example, the first identifier is the union of the layer 2 identifier of the first terminal and the layer 2 identifier of the second terminal. In yet another example, the first identifier may alternatively be a specially defined identifier used to identify a unicast connection between the first terminal and the second terminal.

[0365] As shown in Fig.15, in a possible embodiment, the method presented in this embodiment of the present application further includes the following steps.

[0366] Step 205: The second terminal obtains the second bypass link radio bearer configuration information.

[0367] For example, step 205 in this embodiment of the present application may be specifically implemented as follows: The second terminal obtains the second configuration information from the network device accessed by the second terminal, or the second terminal may obtain the second configuration information from the preliminary configuration information. It should be understood that the preconfiguration information includes a relationship relation between at least one piece of QoS information and at least one piece of bypass link configuration information.

[0368] Specifically, the second terminal can obtain the second configuration information from the network device that the second terminal has access to as follows. That the second terminal obtains the second bypass link radio bearer configuration information includes: The second terminal receives a second message from the network device, wherein the second message includes second configuration information that relates to the bypass link radio bearer and configured for the second terminal. In addition, before the second terminal receives the second message from the network device, the method provided in this embodiment of the present application further includes: The second terminal sends the third message to the network device. The third message includes at least one of the following information: an identifier of the bypass link radio bearer, an identifier of one logical channel associated with at least one RLC entity or at least two RLC entities in the bypass link radio bearer, an identifier one of two logical channels associated with at least one RLC entity or at least two RLC entities in the bypass link radio bearer, QoS information associated with the bypass link radio bearer, and first indication information.

[0369] In an optional implementation, the second message and the third message further include a first identifier.

[0370] It should be understood that the third message in FIG. 15 includes a logical channel identifier associated with at least one RLC entity or with at least two RLC entities on the bypass link radio bearer. The third message in FIG. 16 includes identifiers of two logical channels associated with at least one RLC entity or with at least two RLC entities on a bypass link radio bearer.

[0371] Step 206: The second terminal configures a bypass link radio bearer based on the second bypass link radio bearer configuration information.

[0372] The second configuration information includes at least one of the following information: a bypass link radio bearer identifier, configuration information of a PDCP entity in the bypass link radio bearer, configuration information of at least one RLC entity or at least two RLC objects on the bypass link radio bearer, logical channel configuration information on the bypass link radio bearer, and a logical channel identifier on the bypass link radio bearer.

[0373] It should be understood that a bypass link radio bearer identifier and/or a logical channel identifier associated with at least one RLC entity or with at least two RLC entities in the bypass link radio bearer may be autonomously allocated first. terminal or a second terminal.

[0374] In an exemplary embodiment, still with reference to FIG. 15, the method presented in this embodiment of the present application further includes the following steps.

[0375] Step 207: The first terminal sends the first MAC PDU and the first combining information to the second terminal, the first combining information includes the first identifier and the identifier of one logical channel in the bypass link radio bearer.

[0376] The first association information indicates that the first MAC SDU is a MAC SDU on the bypass link radio bearer. The first MAC SDU is a MAC SDU that is included in the first MAC PDU and corresponds to a logical channel identifier associated with at least one RLC entity or at least two RLC entities on the bypass link radio bearer.

[0377] Step 208: The second terminal receives the first MAC PDU and the first combining information from the first terminal.

[0378] In another possible embodiment, still with reference to Fig.15, the method presented in this embodiment of the present application further includes the following steps.

[0379] Step 209: The second terminal sends the second MAC PDU and the second combining information to the first terminal, the second combining information includes the first identifier and the identifier of one logical channel associated with at least one RLC entity or with at least two RLC entities on the bypass link radio bearer.

[0380] The second association information indicates that the second MAC SDU is a MAC SDU on the bypass link radio bearer. The second MAC SDU is a MAC SDU that is included in the second MAC PDU and corresponds to a logical channel identifier associated with at least one RLC entity or at least two RLC entities on the bypass link radio bearer.

[0381] Step 210: The first terminal receives the second MAC PDU and the second association information.

[0382] Example 2: One RLC entity (if the bypass link radio bearer RLC mode of operation is AM) in the bypass link radio bearer is associated with two logical channels or two RLC entities (if the radio bearer RLC mode of operation is bypass link bearer is AM) in the bypass link radio bearer are associated with two logical channels.

[0383] It should be understood that one (shortly referred to as the send logical channel below) of the two logical channels is configured to send bypass link service data, and the other logical channel (hereinafter, briefly referred to as the receive logical channel) is configured to receive an RLC status report. for bypass link service data. Alternatively, the sending logical channel is further configured to receive the bypass link service data, and the receiving logical channel is further configured to send an RLC status report for the bypass link service data.

[0384] It should be understood that if the packet duplication function is configured for the bypass link radio bearer, the bypass link radio bearer includes two RLC entities (if the mode of operation at the RLC layer for the bypass link radio bearer is AM), and each RLC entity is associated with two logical channels, or the bypass link radio bearer includes four RLC entities (if the mode of operation at the RLC layer of the bypass link radio bearer is UM), and one RLC entity used for sending, and one RLC entity used for receiving are associated with two logical channels.

[0385] Case 3: When the mode of operation at the RLC layer is AM, the bypass link radio bearer includes at least one RLC entity, and at least one RLC entity is associated with two logical channels. One of the two logical channels is configured to send bypass link service data, and the other logical channel is configured to receive an RLC status report for bypass link service data. Alternatively, one of the two logical channels is configured to receive bypass link service data, and the other logical channel is configured to send an RLC status report for the received bypass link service data. The at least one RLC entity may be configured to send bypass link service data, and may be configured to receive an RLC status report for the bypass link service data. Alternatively, the at least one RLC entity receives the bypass link service data and is configured to send an RLC status report for the bypass link service data.

[0386] It should be understood that if the duplicate packet function is configured for the bypass link bearer, at least one RLC entity includes an RLC entity configured to send original data of the bypass link service, an RLC entity configured to send duplicate bypass link service data; and an RLC entity configured to receive duplicate bypass link service data.

[0387] Case 4: When the mode of operation at the RLC layer is UM, the bypass link radio bearer includes at least two RLC entities, and any of the at least two RLC entities is associated with one of the two logical channels. One of the at least two RLC entities is configured to send bypass link service data, and the other one of the at least two RLC entities is configured to receive bypass link service data. One of the two logical channels is configured to send bypass link service data, and the other logical channel is configured to receive bypass link service data. The RLC entity that sends the bypass link service data is associated with the logical channel that sends the bypass link service data, and the RLC entity that receives the bypass link service data is associated with the logical channel that receives the bypass link service data.

[0388] It should be understood that if the packet duplication function is configured for a bypass link bearer, the at least two RLC entities further include an RLC entity configured to send duplicate bypass link service data, or an RLC entity configured to the possibility of receiving duplicated bypass link service data.

[0389] In an optional implementation, the bypass link radio bearer ID and/or the ID of either of the two logical channels are/are unique in combining source information and destination information.

[0390] For example, the identifier of one of the two logical channels is unique in combining the first source information and the first destination information, the first source information is the source layer 2 identifier of the first terminal, and the first destination information is the source layer. 2 identifier of the second terminal. In other words, the first terminal sends the bypass link service data on the logical channel, and the second terminal receives the bypass link service data on the logical channel.

[0391] For example, the identifier of the other one of the two logical channels is unique in combining the second source information and the second destination information, the second source information is the source layer 2 identifier of the second terminal, and the second destination information is the source layer 2 identifier of the first terminal. In other words, the second terminal sends the bypass link service data on another logical channel, and the first terminal receives the bypass link service data on another logical channel.

[0392] In an optional implementation, the first configuration information further includes either an identifier from two logical channels or a bypass link radio bearer identifier.

[0393] In an optional implementation, the first configuration information is further used by the first terminal to send bypass link service data and/or control signals by using the bypass link bearer radio channel, and is used by the second terminal to receive bypass link service data and/or control signals . using a radio carrier bypass link.

[0394] With reference to Fig.16, in another possible embodiment, the method presented in this embodiment of the present application further includes the following steps.

[0395] Step 211: The second terminal obtains the second bypass link radio bearer configuration information.

[0396] In particular, for the implementation process, refer to the descriptions at block 205.

[0397] Step 212: The second terminal configures a bypass link radio bearer based on the second bypass link radio bearer configuration information.

[0398] The second configuration information includes at least one of the following information: a bypass link radio bearer identifier, configuration information of a PDCP entity in the bypass link radio bearer, configuration information of at least one RLC entity or at least two RLC entities on the bypass link radio bearer, configuration information of any of the two logical channels associated with at least one RLC entity or at least two RLC entities on the bypass link radio bearer, and a logical channel identifier.

[0399] It should be understood that the identifier of the bypass link radio bearer, the identifier of the first logical channel in the two logical channels associated with at least one RLC entity or at least two RLC entities in the bypass link radio bearer, and the identifier of the second a logical channel in two logical channels associated with at least one RLC entity or with at least two RLC entities in a bypass link radio bearer may be individually autonomously assigned by the first terminal or the second terminal, or all identifiers assigned by the first terminal, or all identifiers are allocated by the second terminal. In an optional implementation, in this embodiment of the present application, the second configuration information is used by the second terminal to send data of the bypass link service and/or control signaling by using the radio bearer of the bypass link, and is used by the first terminal to receive data of the bypass link service and /or control signaling by using a bypass link radio bearer.

[0400] It should be understood that if the bypass link radio bearer identifier and the two logical channel identifiers in the bypass link radio bearer or the single logical channel identifier in the bypass link radio bearer are autonomously allocated by the first terminal or the second terminal, the network device may not use the second message to carry the bypass link radio bearer identifier and the two logical channel identifiers in the bypass link radio bearer or the logical channel identifier in the bypass link radio bearer. If the bypass link radio bearer identifier is autonomously allocated by the second terminal or the first terminal, the network device may use the second message to carry the two logical channel identifiers or the logical channel identifier. If the two logical channel identifiers or the logical channel identifier are autonomously allocated by the second terminal or the first terminal, the network device may use the second message to carry the bypass link bearer radio identifier.

[0401] It should be understood that if the network device does not use the second message to carry the two logical channel identifiers or the logical channel identifier and the bypass link radio bearer identifier, the terminal may autonomously perform allocation. In this embodiment of the present application, when the second terminal or the first terminal autonomously allocates a bypass link radio bearer identifier or a logical channel identifier in the bypass link radio bearer, the second terminal and the first terminal may further notify the respective network devices of the autonomously allocated identifier.

[0402] In an exemplary embodiment, still with reference to FIG. 16, the method presented in this embodiment of the present application further includes the following steps.

[0403] Step 213: The first terminal sends the first MAC PDU and the third combining information to the second terminal. The third combining information includes source information, destination information, and a first logical channel identifier in two logical channels associated with at least one RLC entity or at least two RLC entities in the bypass link radio bearer. The third combining information indicates that the first MAC SDU is a MAC SDU on the bypass link radio bearer.

[0404] The first MAC SDU is a MAC SDU that is included in the first MAC PDU and corresponds to the identifier of the first logical channel in two logical channels associated with at least one RLC entity or at least two RLC entities in the bypass link radio bearer . The source information is the source layer 2 identifier of the first terminal, and the destination information is the source layer 2 identifier of the second terminal.

[0405] Step 214: The second terminal receives the first MAC PDU and the third combining information from the first terminal.

[0406] In another possible embodiment, still with reference to Fig.16, the method presented in this embodiment of the present application further includes the following steps.

[0407] Step 215: The second terminal sends the second MAC PDU and the fourth combining information to the first terminal, wherein the fourth combining information includes source information, destination information, and a second logical channel identifier in two logical channels associated with at least one RLC. an RLC entity or at least two entities on the bypass link radio bearer.

[0408] The fourth association information indicates that the second media access control data unit MAC SDU is a MAC SDU on the bypass link radio bearer. The second MAC SDU is a MAC SDU that is included in the second MAC PDU and corresponds to a second logical channel identifier in two logical channels associated with at least one RLC entity or with at least two RLC entities on a bypass link radio bearer. The source information is the source layer 2 identifier of the second terminal, and the destination information is the source layer 2 identifier of the first terminal.

[0409] Step 216: The first terminal receives the second MAC PDU and the fourth association information from the second terminal.

[0410] Referring to Fig. 15 or Fig. 16, as shown in Fig. 17B, the method presented in this embodiment of the present application further includes the following steps.

[0411] Step 217: The second terminal sends a fourth message to the first terminal, wherein the fourth message includes third configuration information, and the third configuration information may include only the parameter configuration of the PDCP entity on the bypass link bearer and the parameter configuration on at least one RLC entity to be received on the bypass link radio bearer.

[0412] Step 218: The first terminal receives the fourth message from the second terminal.

[0413] In yet another exemplary embodiment shown in FIG. 17B, the method presented in this embodiment of the present application further includes the following steps.

[0414] Step 219: The second terminal determines that the QoS flow associated with the bypass link radio bearer is changed.

[0415] For example, the number of QoS flows associated with a bypass link radio bearer increases or decreases.

[0416] For example, in one example, the second terminal may autonomously increase or decrease the number of QoS flows associated with the bypass link bearer radio. In another example, step 219 may be implemented as follows: The second terminal determines, based on the sixth message from the first terminal, that the QoS flow associated with the bypass link radio bearer is changing. The sixth message is used to indicate a change in the QoS flow associated with the first bypass link radio bearer.

[0417] Step 220: The second terminal sends a fifth message to the first terminal or network device, the fifth message being used to indicate a change in the QoS flow associated with the bypass link radio bearer.

[0418] It should be understood that after step 220, the method may further include: The first terminal or network device increases or decreases, based on the fifth message, the number of QoS flows associated with the bypass link radio bearer.

[0419] It should be noted that the fifth message is sent so that the first terminal or network device increases or decreases the number of QoS flows associated with the bypass link bearer in a timely manner. For example, if the fifth message indicates an increase in the number of QoS flows associated with the bypass link radio bearer, the first terminal or network device increases the number of QoS flows associated with the bypass link radio bearer. If the fifth message indicates a decrease in the number of QoS flows associated with the bypass link radio bearer, the first terminal or network device reduces the number of QoS flows associated with the bypass link radio bearer.

[0420] The foregoing mainly describes the solutions in the embodiments of the present application in terms of interaction between network elements. It can be understood that, in order to implement the above functions, each network element such as the first terminal, the second terminal, and the network device includes an appropriate hardware structure and/or software module for performing each function. One skilled in the art will readily appreciate that the blocks, algorithms, and steps in the examples described with reference to the embodiments disclosed in this specification may be implemented in hardware or a combination of hardware and computer software in this application. The performance of a function by hardware or hardware controlled by computer software depends on the particular application and design constraints of the technical solutions. A person skilled in the art can use various methods to implement the described functions for each particular application, but such an implementation should not be considered to be outside the scope of this application.

[0421] In the embodiments of the present application, the first terminal, the second terminal, and the network device may be divided into functional blocks based on the above example methods. For example, each function block may be obtained by splitting based on each respective function, or two or more functions may be integrated into one processing block. The integrated block may be implemented in hardware or may be implemented as a software functional block. It should be noted that in the embodiments of the present application, the division into blocks is an example and is simply a logical division of functions and may be another division in the actual implementation.

[0422] The foregoing describes the methods in embodiments of the present application with reference to FIG. 6 to 17A and 17B. The radio bearer configuration devices that are provided in the embodiments of the present application and that perform the above methods are described below. One of ordinary skill in the art can understand that the method and apparatus can be mutually combined and referred to. The radio bearer configuration devices provided in the embodiments of the present application can perform the steps performed by the first terminal, the second terminal, and the network device in the above radio bearer configuration methods.

[0423] An example in which each functional module is obtained by dividing based on each corresponding function is used below for description.

[0424] When an integrated block is used, FIG. 18 shows a radio bearer configuration device in the above embodiments. The radio bearer configuration device may include a processing unit 101 and a communication unit 102 .

[0425] In an example, the radio bearer configuration device is a second terminal or a chip applied to the second terminal. In this case, the communication unit 102 is configured to support the radio bearer configuration device in step 102 performed by the second terminal in the above embodiment. The processing unit 101 is configured to support the Radio Bearer Configuration Device when executing the step 101 performed by the second terminal in the above embodiment.

[0426] In an exemplary embodiment, the communication unit 102 is further configured to support the radio bearer configuration device in step 106, step 107, step 109, step 110, step 112, step 113, and step 117, which are performed by the second terminal in the above embodiment. implementation. The processing unit 101 is further configured to support the radio bearer configuration device in step 114, step 115, and step 116, which are performed by the second terminal in the above embodiment.

[0427] In another example, the radio bearer configuration device is a second terminal or a chip applied to the second terminal. In this case, the communication unit 102 is configured to support the radio bearer configuration device in step 203 performed by the second terminal in the above embodiment. The processing unit 101 is configured to support the Radio Bearer Configuration Device in step 204 performed by the second terminal in the above embodiment.

[0428] In an exemplary embodiment, the communication unit 102 is further configured to support the radio bearer configuration device in step 205, step 208, step 209, step 211, step 214, step 215, step 217, and step 220, which are performed by the second terminal in the previous embodiment. The processing unit 101 is further configured to support the radio bearer configuration device in step 206, step 212, and step 219, which are performed by the second terminal in the above embodiment.

[0429] In yet another example, the radio bearer configuration device is the first terminal or chip applied to the first terminal. In this case, the processing unit 101 is configured to support the Radio Bearer Configuration Device when executing the step 104 performed by the first terminal in the above embodiment. The communication unit 102 is configured to support the Radio Bearer Configuration Device in step 103 performed by the first terminal in the above embodiment.

[0430] The communication unit 102 is further configured to support the Radio Bearer Configuration Device in step 105 performed by the first terminal in the above embodiment.

[0431] In yet another example, the radio bearer configuration device is the first terminal or chip applied to the first terminal. In this case, the processing unit 101 is configured to support the radio bearer configuration device in step 201 performed by the first terminal in the above embodiment. The communication unit 102 is configured to support the Radio Bearer Configuration Device in step 202 performed by the first terminal in the above embodiment.

[0432] The communication unit 102 is further configured to support the radio bearer configuration device in step 207, step 210, step 213, step 216, and step 218, which are performed by the first terminal in the above embodiment.

[0433] In yet another example, the radio bearer configuration device is a network device or a chip applied to a network device. In this case, the communication unit 102 is configured to support the Radio Bearer Configuration Device when performing the step 108 performed by the network device in the above embodiment.

[0434] The communication unit 102 is further configured to support the radio bearer configuration device in step 111 performed by the network device in the above embodiment.

[0435] It should be noted that when the device shown in FIG. 18 is a network device or a chip used in a network device, the device may not include the processing unit 101.

[0436] When an integrated block is used, FIG. 19 is a possible schematic diagram of the logical structure of the radio bearer configuration device in the above embodiments. The radio bearer configuration device includes a processing unit 112 and a communication unit 113 . The processing module 112 is configured to: control and manage the operation of the radio bearer configuration device. For example, the processing unit 112 is configured to perform the information/data processing step of the radio bearer configuration device. The communication module 113 is configured to support the radio bearer configuration device when performing the step of sending or receiving information/data.

[0437] In an exemplary embodiment, the radio bearer configuration device may further include a storage module 111 configured to store program code and data that can be used by the radio bearer configuration device.

[0438] In an example, the radio bearer configuration device is a second terminal or a chip applied to the second terminal. In this case, the communication unit 113 is configured to support the Radio Bearer Configuration Device when performing the step 102 performed by the second terminal in the above embodiment. The processing unit 112 is configured to support the Radio Bearer Configuration Device when performing step 101 in the above embodiment.

[0439] In an exemplary embodiment, the communication module 113 is further configured to support the Radio Bearer Configuration Device in step 106, step 107, step 109, step 110, step 112, step 113, and step 117, which are performed by the second terminal in the above embodiment. implementation. The processing unit 112 is further configured to support the radio bearer configuration device in step 114, step 115, and step 116, which are performed by the second terminal in the above embodiment.

[0440] In another example, the radio bearer configuration device is a second terminal or a chip applied to the second terminal. In this case, the communication unit 113 is configured to support the Radio Bearer Configuration Device in step 203 performed by the second terminal in the above embodiment. The processing unit 112 is configured to support the Radio Bearer Configuration Device when performing step 204 in the above embodiment.

[0441] In an exemplary embodiment, the communication module 113 is further configured to support the Radio Bearer Configuration Device in step 205, step 208, step 209, step 211, step 214, step 215, step 217, and step 220, which are performed by the second terminal in the previous embodiment. The processing unit 112 is further configured to support the radio bearer configuration device in step 206, step 212, and step 219, which are performed by the second terminal in the above embodiment.

[0442] In yet another example, the radio bearer configuration device is the first terminal or chip applied to the first terminal. In this case, the processing unit 112 is configured to support the Radio Bearer Configuration Device when performing the step 104 performed by the first terminal in the above embodiment. The communication unit 113 is configured to support the Radio Bearer Configuration Device in step 103 performed by the first terminal in the above embodiment.

[0443] The communication unit 113 is further configured to support the Radio Bearer Configuration Device in step 105 performed by the first terminal in the above embodiment.

[0444] In yet another example, the radio bearer configuration device is the first terminal or chip applied to the first terminal. In this case, the processing unit 112 is configured to support the radio bearer configuration device in step 201 performed by the first terminal in the above embodiment. The communication unit 113 is configured to support the Radio Bearer Configuration Device in step 202 performed by the first terminal in the above embodiment.

[0445] The communication unit 113 is further configured to support the Radio Bearer Configuration Device in step 207, step 210, step 213, step 216, and step 218, which are performed by the first terminal in the above embodiment.

[0446] In yet another example, the radio bearer configuration device is a network device or a chip applied to a network device. In this case, the communication unit 113 is configured to support the Radio Bearer Configuration Device when performing the step 108 performed by the network device in the above embodiment.

[0447] The communication module 113 is further configured to support the Radio Bearer Configuration Device when performing step 111 performed by the network device in the above embodiment.

[0448] It should be noted that when the device shown in FIG. 19 is a network device or a chip applied to a network device, the device may not include the processing unit 112.

[0449] Processing module 112 may be a processor or a controller. For example, processing module 112 may be a CPU, a general purpose processor, a digital signal processor, an ASIC, a field-programmable gate array or other programmable logic device, a transistorized logic device, hardware, a component, or any combination thereof. Processing module 112 may implement or execute various exemplary logical blocks, modules, and circuits described with reference to the content disclosed in the present invention. Alternatively, the processor may be a combination of processors that implement a computing function, such as a combination of one or more microprocessors, or a combination of a digital signal processor and a microprocessor. The communication module 113 may be a transceiver, a transceiver circuit, a communication interface, or the like. The storage unit 111 may be a memory.

[0450] When the processing unit 112 is the processor 41 or the processor 45, the communication unit 113 is the transceiver 43, and the storage unit 111 is the memory 42, the radio bearer configuration device in the present application may be the communication device shown in FIG.

[0451] FIG. 20 is a schematic block diagram of a chip 150 according to one embodiment of the present application. Chip 150 includes one or more (including two) processors 1510 and a communication interface 1530.

[0452] Optionally, chip 150 further includes memory 1540. Memory 1540 may include read-only memory and random access memory, and provide operating instructions and data to processor 1510. Memory portion 1540 may further include nonvolatile (non-volatile ) non-volatile random access memory (NVRAM).

[0453] In some implementations, memory 1540 stores the following elements, an executing module or a data structure, or a subset or extension thereof.

[0454] In this embodiment of the present application, the corresponding operation is performed by calling an operation instruction (whereby the operation instruction may be stored in the operating system) stored in the memory 1540.

[0455] In an exemplary embodiment, the first terminal, the second terminal, and the network device use a similar chip structure, and different devices may use different chips to implement their respective functions.

[0456] The processor 1510 controls the processing operation of any of the first terminal, the second terminal, and the network device, and the processor 1510 may also be referred to as a central processing unit (CPU).

[0457] Memory 1540 may include read-only memory and random access memory, and provide instructions and data to processor 1510. Part of memory 1540 may further include non-volatile (non-volatile) random access memory (NVRAM )). For example, in an application, memory 1540, communication interface 1530, and memory 1540 are connected together via a bus system 1520. The bus system 1520 may further include a power bus, a control bus, a status signal bus, and the like. in addition to the data bus. However, for clear description, the various buses are referred to as bus system 1520 in FIG.

[0458] The methods disclosed in the above embodiments of the present application may be applied to the processor 1510 or may be implemented by the processor 1510. The processor may be an integrated circuit and may have signal processing capability. During implementation, the steps of the above method may be implemented by using a hardware integrated logic circuit in the processor 1510 or by using instructions in the form of software. Processor 1510 may be a general purpose processor, digital signal processing (DSP), application specific integrated circuit (ASIC), field-programmable gate array (FPGA), or other programmable a logic device, a discrete logic device with a gate or transistor, or a discrete hardware component. The processor 1510 may implement or execute the methods, steps, and flowcharts that are disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor, or the processor may be any conventional processor or the like. The steps of the methods disclosed with reference to embodiments of the present application may be directly executed and completed by a hardware decoding processor, or may be performed and completed by combining hardware and software modules in a decoding processor. The software module may be located on a mature storage medium in the art, such as RAM, flash memory, read only memory, programmable read only memory, electrically erasable programmable memory, or a register. The storage medium is located in the memory 1540 and the processor 1510 reads the information in the memory 1540 and performs the steps of the above methods in association with the processor 1510 hardware.

[0459] In an exemplary embodiment, the communication interface 1530 is configured to perform the steps of receiving and sending the first terminal, the second terminal, and the network device in the embodiments shown in FIG. 6 to 17A and 17B. The processor 1510 is configured to perform the processing steps of the first terminal, the second terminal, and the network device in the embodiments shown in FIG. 6 to 17A and 17B.

[0460] The above communication unit may be an interface circuit or a communication interface of a device, and is configured to receive a signal from another device. For example, when the device is implemented as a chip, the communication unit is an interface circuit or communication interface belonging to the chip and which is configured to receive a signal from another chip or device or send a signal.

[0461] In the above embodiment, an instruction which is stored in memory and which is to be executed by a processor may be implemented in the form of a computer program product. The computer program product may be stored in memory in advance, or may be downloaded as software and installed in memory.

[0462] The computer program product includes one or more computer instructions. When computer program instructions are downloaded and executed on a computer, procedures or functions according to embodiments of the present application are generated in whole or in part. The computer may be a general purpose computer, a specialized computer, a computer network, or other programmable device. The computer instructions may be stored on a computer-readable storage medium or may be transmitted from a computer-readable storage medium. other computer-readable medium. For example, computer instructions may be transmitted from a website, computer, server, or data center to another website, computer, server, or data center over a wired (for example, coaxial cable, optical fiber, or digital subscriber line (DSL) )) or wirelessly (eg infrared, radio or microwave). A computer-readable storage medium can be any usable medium accessible to a computer, or a storage device, such as a server or data center, that combines one or more usable media. The medium used may be a magnetic medium (eg, a floppy disk, hard disk, or magnetic tape), an optical medium (eg, a DVD), a semiconductor medium (eg, a solid state disk (SSD) or the like.

[0463] According to one aspect, a computer-readable storage medium is provided. The computer-readable storage medium stores the instruction, and when the instruction is executed, the second terminal or chip applied to the second terminal is enabled to perform step 101, step 102, step 106, step 107, step 109, step 110, step 112, step 113, step 114 , step 115, step 116 and step 117 in the embodiment.

[0464] According to another aspect, a computer-readable storage medium is provided. The computer-readable storage medium stores the instruction, and when the instruction is executed, the second terminal or chip applied to the second terminal is enabled to perform step 203, step 204, step 205, step 206, step 208, step 209, step 211, step 212, step 214 , step 215, step 217, step 219 and step 220 in the embodiment.

[0465] According to another aspect, a computer-readable storage medium is provided. The computer-readable storage medium stores the instruction, and when the instruction is executed, the first terminal or chip applied to the first terminal is enabled to perform step 103, step 104, and step 105 in the embodiment.

[0466] According to another aspect, a computer-readable storage medium is provided. The computer-readable storage medium stores the instruction, and when the instruction is executed, the first terminal or chip applied to the first terminal is enabled to perform step 201, step 202, step 207, step 210, step 213, step 216, and step 218 in the embodiment.

[0467] According to another aspect, a computer-readable storage medium is provided. The computer-readable storage medium stores the instructions, and when the instruction is executed, the network device or chip applied to the network device is enabled to perform step 108 and step 111 in the embodiments.

[0468] The aforementioned readable storage medium may include any medium that can store program code, such as a USB flash drive, removable hard disk, read only memory, random access memory, magnetic disk, or optical disk.

[0469] According to one aspect, a computer program product is provided that includes an instruction. The computer program product stores the instruction, and when the instruction is executed, the second terminal or chip applied to the second terminal is enabled to perform step 101, step 102, step 106, step 107, step 109, step 110, step 112, step 113, step 114, step 115, step 116 and step 117 in the embodiment.

[0470] According to another aspect, a computer program product is provided including an instruction. The computer program product stores the instruction, and when the instruction is executed, the second terminal or chip applied to the second terminal is enabled to perform step 203, step 204, step 205, step 206, step 208, step 209, step 211, step 212, step 214, step 215, step 217, step 219 and step 220 in the embodiment.

[0471] According to another aspect, a computer program product is provided including an instruction. The computer program product stores the instruction, and when the instruction is executed, the first terminal or chip applied to the first terminal is enabled to perform step 103, step 104, and step 105 in the embodiment.

[0472] According to another aspect, a computer program product is provided including an instruction. The computer program product stores the instruction, and when the instruction is executed, the first terminal or chip applied to the first terminal is enabled to perform step 201, step 202, step 207, step 210, step 213, step 216, and step 218 in the embodiment.

[0473] According to another aspect, a computer program product is provided including an instruction. The computer program product stores the instruction, and when the instruction is executed, the network device or chip applied to the network device is enabled to execute step 108 and step 111 in the embodiment.

[0474] According to one aspect, a chip is provided. The chip is applied to the second terminal, the chip includes at least one processor and a communication interface, the communication interface is connected to at least one processor, and the processor is configured to execute an instruction to perform steps 101, steps 102, step 106, step 107, step 109, step 110, step 112, step 113, step 114, step 115, step 116 and step 117 in the embodiment.

[0475] According to another aspect, a chip is provided. The chip is applied to the second terminal, the chip includes at least one processor and a communication interface, the communication interface is connected to at least one processor, and the processor is configured to execute an instruction to execute step 203, step 204, step 205, step 206 , step 208, step 209, step 211, step 212, step 214, step 215, step 217, step 219, and step 220 in the embodiment.

[0476] According to one aspect, a chip is provided. The chip is applied to the first terminal, the chip includes at least one processor and a communication interface, the communication interface is connected to at least one processor, and the processor is configured to execute an instruction to perform steps 103, steps 104 and step 105 in the embodiment .

[0477] According to another aspect, a chip is provided. The chip is applied to the first terminal, the chip includes at least one processor and a communication interface, the communication interface is connected to at least one processor, and the processor is configured to execute an instruction to perform steps 201, step 202, step 207, step 210, step 213, step 216 and step 218 in the embodiment.

[0478] According to another aspect, a chip is provided. The chip is applied to a network device, the chip includes at least one processor and a communication interface, the communication interface is coupled to at least one processor, and the processor is configured to execute an instruction to perform steps 108 and 111 in the embodiment.

[0479] All or some of the above embodiments may be implemented using software, hardware, firmware, or any combination thereof. When software is used to implement the embodiments, the embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When computer program instructions are downloaded and executed on a computer, procedures or functions according to embodiments of the present application are generated in whole or in part. The computer may be a general purpose computer, a specialized computer, a computer network, or other programmable device. The computer instructions may be stored on a computer-readable storage medium or may be transmitted from a computer-readable storage medium. For example, computer instructions may be transmitted from a website, computer, server, or data center to another website, computer, server, or data center by wire (for example, coaxial cable, optical fiber, or digital subscriber line). line (DSL))) or wireless (eg infrared, radio or microwave) method. A computer-readable storage medium can be any usable medium accessible to a computer, or a storage device, such as a server or data center, that combines one or more usable media. The medium used may be a magnetic medium (eg, a floppy disk, hard disk, or magnetic tape), an optical medium (eg, a DVD), a semiconductor medium (eg, a solid state disk (SSD) for short), or the like.

[0480] Although the present application has been described with reference to embodiments, in the course of implementing the present application, which claims protection, one skilled in the art can understand and implement other embodiments of the disclosed embodiments by viewing the accompanying drawings, the disclosed contents, and the appended claims. In the claims, "comprising" (comprising) does not exclude another component or another step, and reference to the singular or "one" does not exclude the case of "multiple". One processor or other block may implement several of the functions listed in the claims. Some measures are written in dependent claims that differ from each other, but this does not mean that these measures cannot be combined to obtain a better effect.

[0481] Although the present application has been described with reference to specific functions and their embodiments, it is clear that various modifications and combinations can be made to this application without going beyond the spirit and scope of the present application. Accordingly, the description and the accompanying drawings are merely exemplary of the description of the present application as defined by the appended claims, and are construed as any or all modifications, variations, combinations, or equivalents that fall within the scope of the present application. It is understood that a person skilled in the art can make various modifications and changes to this application without going beyond the essence and scope of this application. The present application is intended to cover these modifications and variations of the present application, provided that they fall within the scope of the claims of the present application and their equivalent technologies.

Claims (15)

1. A method for configuring a radio bearer channel, comprising the steps of: receiving, by the second terminal, a first message from the first terminal, the first message containing the first configuration information of the bypass link radio bearer between the second terminal and the first terminal, and the first configuration information containing information used to indicate that the operating mode of the radio link control layer (RLC) of the bypass link radio bearer is an acknowledgment mode (AM), or contains information used to indicate that the operating mode of the RLC layer of the bypass link radio bearer is an unacknowledged (UM) mode, and an indication of the channel type is a carrier, wherein the indication of the type of the bearer is used to indicate the type of the radio bearer of the bypass link; and setting or configuring, by means of the second terminal, a bypass link radio bearer based on the first message, wherein the method further comprises sending, by the second terminal, a third message to the network device if the bypass link radio bearer is a bidirectional bearer radio bearer, wherein the third message contains information used to indicate an operating mode of the bypass radio bearer RLC layer. lines. 2. The method of claim 1, wherein the first configuration information contains information used to indicate that the RLC layer operating mode of the bypass link radio bearer is an unacknowledged (UM) mode and an indication of the bearer type used to indicate that the bypass link radio bearer is a bidirectional bearer. 3. The method of claim 1, wherein the first configuration information contains information used to indicate that the operating mode of the RLC layer of the bypass link radio bearer is an acknowledgment (AM) mode. 4. The method according to any one of claims 1 to 3, wherein the first message further comprises quality of service (QoS) information associated with the bypass link radio bearer. 5. The method according to any one of claims 1 to 3, wherein the first configuration information further comprises a logical channel identifier in the bypass link radio bearer, and the logical channel identifier is allocated by the first terminal. 6. The method according to any one of claims 1 to 3, wherein the third message further comprises QoS information associated with the bypass link radio bearer. 7. The method of claim 6, wherein the QoS information comprises at least any one of the following: guaranteed transmission rate, maximum transmission rate, delay requirement, reliability requirement, priority, link distance, 5G quality of service identifier, quality identifier of service PC5 and the quality of service flow identifier. 8. The method according to any one of claims 1-3, wherein the third message further comprises a recipient identifier for the first terminal. 9. The method according to any one of claims 1 to 3, wherein the communication interfaces of the first terminal and the second terminal are PC5 ports. 10. A communication terminal comprising a memory, a processor, and a computer program that is stored in the memory and that can be executed on the processor, the processor executing the program for implementing the method according to any one of claims 1-9. 11. A computer-readable storage medium containing instructions, wherein, when the instructions are executed in the computer, the computer executes the method according to any one of claims 1-9. 12. A microcircuit comprising at least one processor and a communication interface, wherein the communication interface is connected to at least one processor, and the processor is configured to execute computer programs or instructions for implementing the method according to any one of claims 1-9.

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