CN118201103A

CN118201103A - Multicast broadcast service configuration method and device

Info

Publication number: CN118201103A
Application number: CN202211610598.7A
Authority: CN
Inventors: 王婷婷; 何大治; 徐胤
Original assignee: Shanghai National Engineering Research Center of Digital Television Co Ltd
Current assignee: Shanghai National Engineering Research Center of Digital Television Co Ltd
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2024-06-14

Abstract

The invention relates to the field of communication, in particular to a method and a device for configuring multicast broadcast service, which comprise the following steps: receiving configuration information, wherein the configuration information is associated with indication information, the configuration information is used for indicating a first communication node to receive radio bearer information and/or transmission resource information which are configured to be required by multicast broadcast service, and the indication information is used for indicating the connection state of the first communication node to which the configuration information is applicable.

Description

Multicast broadcast service configuration method and device

Technical Field

The present invention relates to the field of communications, and in particular, to a method and apparatus for configuring a multicast broadcast service.

Background

In the configuration process of the multicast broadcast service, as the connection states of the UE are different, the transmission resources and the flow are different, and the corresponding configuration modes are also different. In the latest 3gpp r17, the proposed configuration is: for the UE in rrc_connected (Radio Resource Control Connected, radio resource control, RRC CONNECTED state), configuration of the multicast broadcast service is achieved by transmitting RRC signaling containing configuration information, and for the UE in rrc_idle (which may also be referred to as RRC inactive state), configuration of the multicast broadcast service is achieved by transmitting a system message indicating the configuration information.

However, for a UE with a newly introduced rrc_inactive (also referred to as an RRC INACTIVE state) by 3GPP, a complete, significantly efficient, widely accepted set of configuration mechanisms is not yet proposed today. Recent research discussions propose to implement multicast broadcast service configuration in the RRC inactive state by transmitting RRC signaling containing configuration information.

However, in performing this approach, the inventors have found that this approach has at least the following problems: for the same multicast broadcast service, after receiving the RRC signaling, the UE cannot distinguish whether the configuration information included in the RRC signaling corresponds to configuration information in an RRC connection state or configuration information corresponding to configuration information in an RRC inactive state, which may cause reception of MBS service through erroneous configuration information, and further cause problems of delayed reception and erroneous reception when the UE receives the service.

Therefore, there is a need in the art for a multicast broadcast service configuration method.

Disclosure of Invention

The application aims to provide a multicast broadcast service configuration method and device, which can solve the problems of error configuration and error reception caused by incapability of distinguishing the applicable state of configuration information after UE receives the configuration information in the related technology.

In a first aspect, an embodiment of the present application provides a multicast broadcast service configuration method, where the method is applied to a first communication node, and includes:

And receiving configuration information, wherein the configuration information is associated with indication information, the configuration information is used for indicating the first communication node to receive radio bearer information and/or transmission resource information which are configured required by the multicast broadcast service, and the indication information is used for indicating the connection state of the first communication node to which the configuration information is applicable.

In a second aspect, an embodiment of the present application provides a multicast broadcast service configuration method, which is performed by a second communication node, including:

And sending configuration information to the first communication node, wherein the configuration information is associated with indication information, the configuration information is used for indicating the first communication node to receive radio bearer information and/or transmission resource information which are required to be configured by the multicast broadcast service, and the indication information is used for indicating the connection state of the first communication node to which the configuration information is applicable.

In a third aspect, an embodiment of the present application provides a multicast broadcast service configuration apparatus, where the apparatus is configured to a first communication node, including:

The receiving module is used for receiving configuration information, the configuration information is associated with indication information, the configuration information is used for indicating the first communication node to receive radio bearer information and/or transmission resource information which are required to be configured by the multicast broadcast service, and the indication information is used for indicating the connection state of the first communication node to which the configuration information is applicable.

In a fourth aspect, an embodiment of the present application provides a multicast broadcast service configuration apparatus, where the apparatus is configured to a second communication node, including:

the sending module is used for sending configuration information to the first communication node, the configuration information is associated with indication information, the configuration information is used for indicating the first communication node to receive radio bearer information and/or transmission resource information which are required to be configured by the multicast broadcast service, and the indication information is used for indicating the connection state of the first communication node to which the configuration information is applicable.

In a fifth aspect, an embodiment of the present application provides an apparatus, including:

one or more processors;

A memory for storing one or more programs;

When the one or more programs are executed by the one or more processors, the one or more processors are caused to implement any of the methods as in the embodiments of the present application.

In a sixth aspect, embodiments of the present application provide a storage medium storing a computer program which, when executed by a processor, implements any of the methods of the embodiments of the present application.

The invention has the beneficial effects that: the first communication node can be correspondingly configured by indicating the connection state of the first communication node to which the configuration information is applicable through the indication information, and the multicast broadcast service is received by the configuration information of the applicable connection state, so that the first communication node can timely and correctly receive the multicast broadcast service, and further, the transmission quality is improved.

Drawings

FIG. 1 is a flow chart of a method for receiving configuration information in one embodiment of the invention;

Fig. 2 is a flow chart of a method for receiving multicast broadcast services in one embodiment of the present invention;

FIG. 3 is a flow chart of a method for transmitting indication information in one embodiment of the invention;

FIG. 4 is a schematic diagram of a configuration device used in one embodiment of the invention;

FIG. 5 is a schematic diagram of a configuration device used in one embodiment of the invention;

fig. 6 is a schematic structural view of a configuration device in an embodiment of the present invention.

Detailed Description

The invention is further described below with reference to the drawings and specific examples, which are not intended to be limiting.

In one embodiment, the present application provides a method for multicast broadcast service configuration, as shown in fig. 1, the method being performed by a first communication node, including:

and receiving configuration information, wherein the configuration information is associated with indication information, the configuration information is used for indicating radio bearer information and/or transmission resource information which are required to be configured by the first communication node for receiving the multicast broadcast service, and the indication information is used for indicating the connection state of the first communication node to which the configuration information is applicable.

Specifically, the first communication node receives PTM configuration (Point to Multipoint configuration, point-to-multipoint configuration information) of an MBS (Multimedia Broadcast Multicast Services, multicast broadcast service), and the configuration information is associated with indication information, where the configuration information indicates radio bearer information and/or transmission resource information that needs to be configured by the first communication node to receive the multicast broadcast service, and the indication information is used to indicate a connection state of the first communication node to which the configuration information is applicable. Accordingly, after the first communication node receives the configuration information, the connection state to which the configuration information is applicable may be determined according to the indication information, and then, when receiving the multicast broadcast service, the first communication node receives the configuration information corresponding to the current connection state. Compared with the prior art, the configuration mode provided by the application can enable the first communication node to timely and correctly receive the multicast broadcast service.

The signaling carrying the configuration information may be RRC signaling, PDCP layer signaling, RLC layer signaling, MAC layer signaling, further, RRC signaling may be RRCReconfiguration messages, RRCRELEASE messages, RRCResume messages, or dedicated RRC layer messages that are dedicated to carrying the configuration information and do not include other information contents of the RRC layer.

Wherein, the configuration information may be used to indicate Radio Bearer information MRB (MBS Radio Bearer) and/or transmission resources that are configured to transmit the multicast broadcast service, the MRB may include RRC layer configuration, PDPCP layer configuration, RLC layer configuration, and MAC layer configuration, the transmission resources may include physical transmission resources, protocol stack configuration, and the configuration information may also be used to indicate CFR (Common Frequency Region ) information associated with a dedicated BWP (Bandwidth Part).

The association mode of the configuration information associated indication information can directly comprise that the configuration information contains the indication information; the indication may be indirect, i.e. the configuration information indicates a certain transmission information, which includes the indication information, or the configuration information indicates a certain transmission channel, which carries the indication information.

The indication information may be a field, such as a status field included in a configuration information data structure, or may be information independent of the configuration information, or may be other expression forms, which is not limited by the present application.

The indication mode of the indication information may be a mode of assigning an indication, that is, 0 is assigned when the indication information is used for indicating the RRC connected state, 1 is assigned when the indication information is used for indicating the RRC inactive state, or 1 is assigned when the indication information is used for indicating the RRC connected state, and 0 is assigned when the indication information is used for indicating the RRC inactive state.

The application does not limit the actual expression form of the first communication node, and the first communication node can be a mobile terminal and a relay in a mobile communication system, can also be a vehicle terminal in a vehicle-mounted communication system, can be expressed as mobile phone equipment, can be relay equipment and can also be new energy vehicle equipment in actual life.

It should be noted that, in the present application, each multicast broadcast service has at least one set of configuration information, each set of configuration information is associated with a connection state, the connection states are different, the indication information is different, and the configuration information may also be substantially different, that is, the configuration information for the RRC connection state and the configuration information for the RRC inactive state may be substantially different from each other.

It should be noted that, the first communication node receives multiple sets of configuration information corresponding to multiple multicast and broadcast services of interest, and the configuration method provided by the present application enables the configuration information corresponding to each multicast and broadcast service to be associated with indication information for indicating an applicable connection state. For example, the first communication node UE ₁ executes the multicast broadcast service MBS ₁ and the multicast broadcast service MBS ₂, and receives a set of configuration information 1 corresponding to the multicast broadcast service MBS ₁ and a set of configuration information 2 corresponding to the multicast broadcast service MBS ₂, respectively, and accordingly, the configuration information 1 corresponding to the multicast broadcast service MBS ₁ associates the indication information indicating the connection state to which the configuration information 1 applies, and the configuration information 2 corresponding to the multicast broadcast service MBS ₂ associates the indication information indicating the connection state to which the configuration information 2 applies.

For example, the first communication node UE ₃ executing the multicast broadcast service MBS ₃ receives two configuration information, configuration information 3 is used to receive MBS ₃ in RRC connected state, configuration information 4 is used to receive MBS ₃ in RRC inactive state, if the radio bearer information indicated by the two configuration information are different, for example, configuration information 3 indicates that the RLC layer operation mode is configured as AM (Acknowledged Mode, reliable transmission), and configuration information 4 indicates that the RLC layer operation mode is configured as TM (transport mode, transparent transmission), at this time, after receiving the two configuration information, the first communication node may perform corresponding configuration according to the connection state to which the two configuration information is applicable, so that the first communication node receives in AM mode when receiving MBS ₃ service in RRC connected state, and receives in TM mode when receiving MBS ₃ service in RRC inactive state. In the prior art, since there is no indication information for indicating the connection state to which the configuration information is applicable, the first communication node cannot distinguish the connection state to which the configuration information is applicable after receiving the configuration information, if the first communication node in the RRC connection state receives the configuration information 4, the configuration information 4 may be mistakenly configured for the RRC connection state, and further the configuration information 4 is configured, the first communication node will receive the MBS ₃ service in the TM transmission manner in the RRC connection state, the first communication node will not perform uplink feedback on the service, and correspondingly, the second communication node will not retransmit the service, in practice, however, the first communication node should receive the MBS ₃ service in an AM transmission manner in the RRC connected state, and the first communication node should perform uplink feedback on the service, and correspondingly, the second communication node should also retransmit the service. It can be seen that the prior art distinguishing errors will greatly reduce the reliability of the data transmission. If the first communication node receives the configuration information 3, it may be misunderstood that the configuration information 3 is configured in the RRC inactive state, and further the first communication node will receive the MBS ₃ service in the AM transmission manner in the RRC inactive state, but because the first communication node in the inactive state cannot perform uplink transmission, i.e. cannot implement AM transmission in the RRC inactive state, the configuration at this time cannot be implemented and fails. It can be seen that the configuration manner of this embodiment enables the first communication node to correctly receive the multicast broadcast service.

Further, if the reliability is reduced, the time for the first communication node to successfully receive the data becomes longer. For example, the first communication node UE ₃ receives configuration information 3 and 4 of two multicast broadcast services MBS ₃, the configuration information 3 is used for AM receiving MBS ₃ in an RRC connected state, the configuration information 4 is used for TM receiving MBS ₃ in an RRC inactive state, after the configuration information 3 and 4 received by the first communication node UE ₃ in the RRC connected state, MBS ₃ service should be received in an AM transmission manner according to the received configuration information 3, i.e. the first communication node performs uplink feedback on the service, and correspondingly, the second communication node also performs retransmission on the service, if the received data is wrong, the first communication node generates feedback at the RLC layer, so that the base station retransmits the data, but since there is no indication information for indicating the connection state to which the configuration information is applicable in the prior art, the first communication node may receive MBS ₃ service in a TM transmission manner according to the received configuration information 4, after the received data is wrong, the RLC layer directly uploads the data to the PDCP layer, and the RLC layer generates feedback, so that the base station retransmits the data. It can be seen that, by using the configuration manner of this embodiment, the first communication node can timely receive the multicast broadcast service.

Further, the first communication node receives configuration information of a multicast broadcast service, where the configuration information is associated with indication information, where the indication information is used to indicate a connection state of the first communication node to which the configuration information is applicable, and accordingly, according to the connection state of the first communication node, a physical layer of the first communication node receives the multicast broadcast service by using a configuration corresponding to the connection state, that is, time-frequency resources of the physical layer and physical layer configuration information.

Further, the MAC layer of the first communication node determines, according to the LCID of the received data packet of the multicast broadcast service, a corresponding MBS session id, that is, determines which multicast broadcast service is, and determines, according to the current connection state of the user, a value of the indication information, and further determines a set of configuration information corresponding to the corresponding session id and the indication information, and finally processes, according to the configuration information, the data packet of the multicast broadcast service, so as to implement that the first communication node receives, in the connection state, the multicast broadcast service with the corresponding configuration information of the multicast broadcast service.

In one embodiment, as shown in fig. 2, the method further includes, when the first communication node is in a connection state to which the configuration information is applicable, receiving the multicast broadcast service with the corresponding configuration information.

Specifically, the first communication node receives configuration information of the multicast broadcast service, configures according to a connection state to which the configuration information indicated by the indication information is applicable, and receives the multicast broadcast service with the corresponding applicable configuration information when the first communication node is in the connection state.

The first communication node can immediately perform configuration after receiving the configuration information, and if the configuration information is not suitable for the current state, the first communication node can store the configuration information into the storage space until the first communication node is in a connection state suitable for the configuration information and then directly uses the set of configuration; the first communication node may also obtain the connection state applicable to the configuration information according to the indication information, until the first communication node immediately enters or is already in the applicable connection state, and then configures and uses the connection state, so as to implement receiving of the multicast broadcast service. Further, the time for the first communication node to configure the configuration information may be comprehensively considered in combination with the current storage resource, the current occupied resource, the sending time of the service, the sending frequency and other factors of the first communication node.

It should be noted that the connection state to which the configuration information described in the present application is applicable, that is, the connection state to which the first communication node receives the multicast broadcast service, that is, what connection state the first communication node receives the multicast broadcast service. For example, the connection state applicable to the configuration information of the multicast broadcast service of the first communication node includes an RRC inactive state, that is, the first communication node is capable of receiving the MBS service in the RRC inactive state, and correspondingly, when the first communication node is in the RRC inactive state, the first communication node may receive the MBS service according to the configuration information. Here, no limitation is made to the connection state of the first communication node except for the RRC inactive state to receive the MBS service.

In one embodiment, the connection state to which the configuration information of the multicast broadcast service indicated by the indication information is applicable is an RRC connection state, i.e. the first communication node is capable of receiving the multicast broadcast service in the RRC connection state, and correspondingly, the first communication node is to receive the multicast broadcast service in the RRC connection state according to the configuration information of the multicast broadcast service. Further, if the configuration information is carried on the RRC signaling, the second communication node provides configuration information for the multicast broadcast service by transmitting the RRC signaling, and correspondingly, the first communication node implements configuration of the multicast broadcast service by receiving the RRC signaling.

When the configuration information of the multicast broadcast service is applicable to the RRC connection state, the RRC connection state may be an RRC connection state recovered from the RRC inactive state, that is, the first communication node recovered to the RRC connection state will receive the multicast broadcast service.

For example, when the first communication node receives a multicast broadcast service in the RRC connected state, configuration information for the multicast broadcast service reception configuration is received in advance, where the configuration information is applicable to the RRC connected state, and the RRC connected state is recovered from the original RRC connected state. Accordingly, the second communication node sets the first communication node to be in the RRC connection state recovered from the RRC inactive state, receives the multicast broadcast service, and provides the configuration of the multicast broadcast service for the first communication node by sending configuration information, where the configuration information is applicable to the RRC connection state recovered from the RRC inactive state.

When the configuration information of the multicast broadcast service is applicable to the RRC connection state, the RRC connection state may be an RRC connection state recovered from the RRC idle state, that is, the first communication node recovered to the RRC connection state will receive the multicast broadcast service. For example, when the first communication node receives a multicast broadcast service in the RRC connected state, configuration information for the multicast broadcast service reception configuration is received in advance, the configuration information is applicable to the RRC connected state, and the RRRC connected state is the RRC connected state recovered from the original RRC idle state. Accordingly, the second communication node sets the first communication node to be in the RRC connection state recovered from the RRC idle state, receives the multicast broadcast service, and provides the configuration of the multicast broadcast service for the first communication node by sending configuration information, where the configuration information is applicable to the RRC connection state recovered from the RRC idle state.

It should be noted here that, in actual operation, the indication information generally does not specifically indicate an RRC connection state to which the configuration information of a multicast broadcast service applies, whether the RRC connection state is in an initial access network, an RRC connection state recovered from an RRC inactive state, or an RRC connection state recovered from an RRC idle state. Unless the multicast broadcast service is received with a special mechanism or other special case.

In addition, the first communication node in the RRC inactive state may trigger the RRC recovery procedure by receiving paging information, and the indication information may be further associated with paging information, and may further be associated with configuration information received after the first communication node recovers to the RRC connected state, so as to indicate a connection state to which the configuration information is applicable.

In one embodiment, the configuration information of the multicast broadcast service indicated by the indication information may also be CM-Connected (CONNECTION MANAGEMENT Connected, CM Connected state), that is, the first communication node may receive the multicast broadcast service in the CM Connected state, and correspondingly, the first communication node receives the multicast broadcast service according to the configuration information in the CM Connected state.

In one embodiment, the configuration information of the multicast broadcast service indicated by the indication information is applicable to an RRC inactive state, i.e. the first communication node is capable of receiving the multicast broadcast service in the RRC inactive state, and accordingly, the first communication node will receive the multicast broadcast service according to the configuration information of the multicast broadcast service in the RRC inactive state. Further, if the configuration information is carried on the RRC signaling, the second communication node provides configuration information for the multicast broadcast service by transmitting the RRC signaling, and correspondingly, the first communication node implements configuration of the multicast broadcast service by receiving the RRC signaling.

In one embodiment, the configuration information of the multicast broadcast service indicated by the indication information may also be CM-Inactive (CONNECTION MANAGEMENT INACTIVE, CM Inactive), that is, the first communication node may receive the multicast broadcast service in the CM Inactive state, and correspondingly, the first communication node receives the multicast broadcast service according to the configuration information in the CM Inactive state.

In one embodiment, the configuration information of the multicast broadcast service indicated by the indication information is applicable to an RRC idle state, i.e. the first communication node is capable of receiving the multicast broadcast service in the RRC idle state according to the configuration information of the multicast broadcast service, and correspondingly, the first communication node is to receive the multicast broadcast service in the RRC idle state according to the configuration information. Further, if the configuration information is carried on the RRC signaling, the second communication node provides configuration information for the multicast broadcast service by transmitting the RRC signaling, and correspondingly, the first communication node implements configuration of the multicast broadcast service by receiving the RRC signaling.

In one embodiment, the configuration information of the multicast broadcast service indicated by the indication information may also be CM-Idle (CONNECTION MANAGEMENT IDLE, CM Idle state), that is, the first communication node may receive the multicast broadcast service in the CM Idle state, and correspondingly, the first communication node receives the multicast broadcast service according to the configuration information in the CM Idle state.

It should be noted that the number of connection states to which the configuration information is applicable is not limited in the present application, for example, the configuration information may be applicable to an RRC connection state and an RRC activation state, may be applicable to an RRC connection state and an RRC idle state, may be applicable to an RRC deactivation state and an RRC idle state, and may also be applicable to an RRC connection state, an RRC deactivation state, an RRC idle state, and the like. When the configuration information is applied to a plurality of connection states at the same time, the different connection states are not mutually limited and influenced, and when the configuration information is not applied to the RRC connection state, the configuration information cannot be applied to other connection states.

It should be noted here that the connection state to which the configuration information according to the present application is applicable is not limited to the above connection state, but may be other connection states.

In one embodiment, the configuration information may or may not include indication information when the multicast broadcast service is applicable to only one connection state for the first communication node.

Specifically, when a multicast broadcast service is applicable to a first communication node in only one connection state, that is, the first communication node can only receive the multicast broadcast service in one connection state, the purpose of indicating the connection state to which the configuration information is applicable can be achieved by a manner that the configuration information of the multicast broadcast service contains indication information or does not contain indication information. Correspondingly, the first communication node receives the configuration information of the multicast broadcast service issued by the second communication node, analyzes whether the current configuration information contains the indication information, and further determines the applicable connection state of the configuration information, namely the configuration information corresponding to the first communication node is used in a certain connection state, and the first communication node further receives the multicast broadcast service by using the configuration information in the connection state.

It should be noted that the same multicast broadcast service may be applicable to different first communication nodes in different connection states. For example, when a multicast broadcast service is a video service, a first communication node UE ₁ has a relatively high capability, and even when the first communication node UE ₁ is in an RRC inactive state, the first communication node UE ₁ can receive the video service, while another communication node UE ₂ has a relatively low capability, and can only receive the video service in an RRC connected state.

In one embodiment, the configuration information includes indication information for indicating only one connection state for which the configuration information is applicable.

Specifically, when the multicast broadcast service is applicable to only one connection state for the first communication node, that is, the first communication node receives the multicast broadcast service only in one connection state, the configuration information is indicated to be applicable to one connection state by including the indication information in the configuration information. For example, a multicast broadcast service MBS ₁ service is only applicable to the RRC connection state of the first communication node UE ₁, the first communication node UE ₁ receives the configuration information 1 of the RRC connection state of the MBS ₁ service, analyzes that the configuration information 1 includes indication information, and indicates that the configuration information is applicable to the RRC connection state, so that the first communication node may determine that the configuration information is applicable to the RRC connection state, and accordingly, when the first communication node is in the RRC connection state, the first communication node may use the configuration information to receive the MBS ₁ service.

Further, the indication information may be a status field indicating a connection status, and the configuration information includes the indication information, that is, the configuration information includes the status field, so as to indicate that the configuration information is only applicable to the connection status.

In an embodiment, the configuration information does not include indication information for indicating only one connection state for which the configuration information is applicable.

Specifically, when the multicast broadcast service is applicable to only one connection state for the first communication node, that is, the first communication node receives the multicast broadcast service only in one connection state, the configuration information is indicated to be applicable to one connection state by not including the indication information in the configuration information. For example, a multicast broadcast service MBS ₂ service is only applicable to the RRC connection state of the first communication node UE ₂, and when the first communication node UE ₂ receives the configuration information 2 of the RRC connection state of the MBS ₂ service and analyzes that the configuration information does not include any indication information, it can be determined that the configuration information is applicable to the RRC connection state, and accordingly, when the first communication node is in the RRC connection state, the configuration information can be used to receive the MBS ₂ service. For another example, when the multicast broadcast service MBS service is only applicable to the RRC inactive state, the configuration information may also be explicitly applicable to the RRC inactive state by not including any indication information in the configuration information.

Furthermore, considering that the configuration information of the existing RRC signaling bearer is used for the first communication node in the RRC connected state to receive the multicast broadcast service, i.e. the default first communication node only receives the multicast broadcast service in the RRC connected state, the configuration information of the existing multicast broadcast service does not need to distinguish between applicable connection states, does not associate with the indication information, and does not include the indication information for indicating the connection state. In actual operation, when the multicast broadcast service is applicable to only one connection state and the connection state is the RRC connection state, the manner that the configuration information does not include the newly added indication information may be adopted to indicate the RRC connection state. It should be noted, however, that although the presentation of the instructional information does not change, the concepts and their characterizations change substantially.

In one embodiment, the multicast broadcast service is applicable to two or more connection states for the first communication node, and at least one set of configuration information corresponding to the multiple connection states includes indication information.

Specifically, when a multicast broadcast service is applicable to two or more connection states for the first communication node, that is, the first communication node can receive the multicast broadcast service in the two or more connection states, the first communication node can distinguish the connection states to which the multiple sets of configuration information of the multicast broadcast service are respectively applicable by at least one set of configuration information containing indication information in the multiple sets of configuration information applicable to different connection states, so as to realize corresponding configuration and use of the configuration information, and when the first communication node is in the corresponding connection state, the first communication node can realize the reception of the multicast broadcast service in the corresponding set of configuration information.

Accordingly, the first communication node receives the multiple sets of configuration information for a multicast broadcast service issued by the second communication node, and can distinguish the connection state applicable to the multiple sets of configuration information of the multicast broadcast service by analyzing which set of configuration information contains the indication information and which set of configuration information does not contain the indication information or contains different indication information, that is, the first communication node uses a corresponding set of configuration information in one connection state, receives the multicast broadcast service, and uses corresponding other configuration information in other connection states, and receives the multicast broadcast service.

In one embodiment, a set of configuration information for a connection state corresponding to the multicast broadcast service includes indication information for indicating a connection state to which the configuration information is applicable.

Specifically, when the multicast broadcast service is applicable to two or more connection states, that is, the first communication node receives the multicast broadcast service in two or more connection states, the configuration information is indicated to be applicable to one connection state by including the indication information in the set of configuration information applicable to the one connection state, and correspondingly, other configuration information of the multicast broadcast service does not include the indication information to indicate that the configuration information is applicable to other connection states.

Further, the indication information may be represented as a status field, and accordingly, the configuration information may include the indication information in such a way that the configuration information includes a status field that explicitly indicates the applicable connection status. For example, the configuration information includes a status field identifying the RRC inactive state, which indicates that the configuration information applies to the RRC inactive state.

Further, the status field may be assigned a value of 0 or 1, i.e. the configuration information contains a status field and an assigned value of 0 may indicate that it is suitable for the RRC inactive state, or alternatively, the configuration information contains a status field and an assigned value of 1 may indicate that it is suitable for the RRC inactive state.

For example, for the first communication node UE ₁, a multicast broadcast service MBS ₁ service is applicable to an RRC connection state and an RRC inactive state, that is, the first communication node UE ₁ may receive an MBS ₁ service in the RRC connection state and may also receive an MBS ₁ service in the RRC inactive state, where the indication manner is set to include indication information indicating that the configuration information is applicable to the RRC inactive state and not include indication information indicating that the configuration information is applicable to the RRC inactive state, if the first communication node UE ₁ receives two configuration information 1 and 2 both used for the MBS ₁ service, the configuration information 1 does not include any indication information, the configuration information 2 includes indication information indicating that the RRC inactive state, it may be clear that the configuration information 1 is applicable to the RRC connection state, the configuration information 2 is applicable to the RRC inactive state, and accordingly, the first communication node will receive the MBS ₁ service in the RRC connection state in the configuration manner of the configuration information 1 and receive the MBS ₁ service in the inactive state in the configuration manner of the configuration information 2. By adopting the embodiment, the configuration information of the same multicast broadcast service which is respectively applicable to the RRC connection state and the RRC non-activated state can be distinguished from the data structure, and the configuration information carried by the default RRC signaling in the prior art is applicable to the RRC connection state, is not associated with any state identifier, and is compatible with the prior configuration information applicable to the RRC connection state.

In one embodiment, another set of configuration information applicable to another connection state corresponding to the multicast broadcast service includes indication information for indicating another connection state to which the configuration information is applicable. The indication information may be a status field that explicitly indicates the applicable connection status. Further, the state field may be assigned a value of 0 or 1 to indicate the connection state indicated by the state field. For example, a multicast broadcast service MBS ₂ service is applicable to an RRC connection state and an RRC inactive state, i.e. the first communication node UE ₂ may receive the MBS ₂ service in the RRC connection state, or may receive the MBS ₂ service in the RRC inactive state, where the indication mode is set such that the configuration information does not include indication information indicating that the configuration information is applicable to the RRC inactive state, a status field indicating that the configuration information is applicable to the RRC connection state is included, if the first communication node UE ₂ receives two configuration information that are both used for the MBS ₂ service, the obtained configuration information 1 does not include any indication information, the configuration information 2 includes indication information, it may be determined that the configuration information 1 is applicable to the RRC inactive state, the configuration information 2 is applicable to the RRC connection state, and accordingly, the first communication node will receive the MBS ₂ service in the RRC connection state in the configuration mode of the configuration information 2, and receive the MBS ₂ service in the RRC inactive state in the configuration mode of the configuration information 1.

In one embodiment, a set of configuration information for a first communication node for a multicast broadcast service includes an indication of a connection state for which the configuration information applies to the first communication node, and another set of configuration information for the first communication node for the multicast broadcast service includes another indication of another connection state for which another set of configuration information applies to the first communication node.

Specifically, when the multicast broadcast service is applicable to two connection states, that is, the first communication node can receive the multicast broadcast service in the two connection states, by including one indication information in the set of configuration information applicable to one connection state and including another indication information in the set of configuration information applicable to the other connection state, the first communication node can receive the multicast broadcast service in the corresponding connection state by using the corresponding configuration information in the connection state to which the received configuration information is applicable.

Further, the indication information may be represented as a status field, and the configuration information contains different status fields to indicate different connection status to which it applies.

Wherein the different connection states indicated by the status field can be represented by different assignments of the status field. For example, the state field in the configuration information is assigned a value of 0, indicating that it is applicable to the RRC connected state, and the state field in the configuration information is assigned a value of 1, indicating that it is applicable to the RRC inactive state; or the assignment of the status field in the configuration information is 0, indicating that it is applicable to the RRC inactive state, and the assignment of the status field in the configuration information is 1, indicating that it is applicable to the RRC connected state.

Wherein the different connection states indicated by the status field may be represented by different identifications of the status field. When the configuration information includes a string corresponding to the RRC CONNECTED state status field "rrc_connected" to indicate that the configuration information is applicable to the RRC CONNECTED state, the configuration information includes a string corresponding to the RRC INACTIVE state status field "rrc_inactive" to indicate that the configuration information is applicable to the RRC INACTIVE state.

For example, a multicast broadcast service MBS ₃ service is applicable to the RRC connection state and the RRC non-active state for the first communication node UE ₃, i.e. the first communication node UE ₃ may receive the MBS ₃ service in the RRC connection state or may receive the MBS ₃ service in the RRC non-active state, and the indication mode at this time is set to include indication information indicating that the RRC connection state is included in the configuration information, indicating that the configuration information is applicable to the RRC connection state, and include indication information indicating that the RRC non-active state is included in the configuration information, indicating that the configuration information is applicable to the RRC non-active state, if the first communication node UE ₃ receives two configuration information 3 and 4 both used for the MBS ₃ service, where the configuration information 3 includes a status field, the assignment of the status field corresponds to the RRC connection state, the configuration information 4 includes a status field, the assignment of the status field corresponds to the RRC inactive state, the first communication node UE ₃ may determine that the configuration information 3 applies to the RRC connection state, the configuration information 4 applies to the RRC inactive state, and accordingly, the first communication node UE ₃ will receive the MBS ₃ service in the RRC connection state in the configuration manner of the configuration information 3, and receiving the MBS ₃ service in the RRC inactive state in the configuration mode of the configuration information 4. In practical operation, for a set of configuration information of a multicast broadcast service applicable to different connection states, the configuration information of the different sets respectively includes indication information of different assignment, so that not only the first communication node can distinguish the connection states of the multicast broadcast service for which the sets of configuration information are respectively applicable, but also the corresponding configuration and use of the configuration information are realized, that is, when the first communication node is in the corresponding connection state, the receiving of the multicast broadcast service is realized by the corresponding set of configuration information, and the consistency of the configuration information data structure can be maintained, for example, the multicast broadcast service MBS ₃ service is applicable to the configuration information 3 of the RRC connection state for the first communication node UE ₃, the same as the data structure of the configuration information 4 applicable to the RRC inactive state is different only in the assigned values.

In one embodiment, the multicast broadcast service is applicable to three connection states, i.e. the first communication node can receive the multicast broadcast service in the three connection states, and the first communication node can receive the multicast broadcast service in the corresponding connection state by including the first indication information in the set of configuration information applicable to the first connection state, including the second indication information mode in the set of configuration information applicable to the second connection state, and including the third indication information mode in the set of configuration information applicable to the third connection state, so as to define the connection state to which the received configuration information is applicable.

In addition, when the multicast broadcast service is suitable for multiple connection states, that is, the first communication node receives the multicast broadcast service in multiple connection states, the configuration information may be indicated to be suitable for one or more connection states by including the indication information in the set of configuration information suitable for one or more connection states, and the other multicast broadcast service does not include the configuration information of the indication information, so as to indicate that the configuration information is suitable for other connection states. For example, when the configuration information is applicable to the RRC connected state, the RRC idle state and the RRC inactive state, when the configuration information includes a status field indicating that the configuration information is applicable to the RRC non-connected state, the configuration information may indicate that the configuration information is applicable to the RRC non-active state and the RRC idle state, and when the configuration information does not include the status field, the configuration information indicates that the configuration information is applicable to the RRC connected state; or when the configuration information includes a status field indicating that the configuration information is suitable for the RRC non-connected state, the configuration information may be indicated to be suitable for the RRC non-activated state and the RRC idle state, and includes a status field indicating that the configuration information is suitable for the RRC connected state, i.e. indicating that the configuration information is suitable for the RRC connected state.

Further, if the first communication node can receive in more connection states, that is, the configuration information of the multicast broadcast service may be applicable to more connection states, and accordingly, the indication information included in the configuration information may also be changed accordingly, which is not described herein.

In an embodiment, the configuration information does not comprise indication information for indicating that the configuration information is applicable to the first communication node in any connection state.

Specifically, when the configuration information of a multicast broadcast service is applicable to one or more connection states, that is, the first communication node can receive the multicast broadcast service in one or more connection states, by a manner that the configuration information applicable to different connection states does not include indication information, the first communication node can confirm that the configuration information of the multicast broadcast service can be applicable to any connection state, thereby realizing corresponding configuration and use of the configuration information.

For example, a multicast broadcast service is applicable to both an RRC connected state and an RRC inactive state for a first communication node, i.e., the first communication node is capable of receiving the multicast broadcast service in both the RRC connected state and the RRC inactive state. If the configuration information received by the first communication node does not contain any indication information, namely the configuration information is suitable for the RRC connection state and the RRC inactive state, correspondingly, if the first communication node is in the RRC connection state and receives the multicast broadcast service with the configured configuration information, the first communication node reconfigures when receiving the configuration information, and continues to receive the multicast broadcast service with the configuration information, and if the first communication node subsequently shifts to the RRC inactive state, the configuration information can also be used continuously to receive the multicast broadcast service.

For another example, the multicast broadcast service is applicable to an RRC connected state, an RRC idle state, and an RRC inactive state, i.e., the first communication node is capable of receiving the multicast broadcast service in all of the RRC connected state, the RRC idle state, and the RRC inactive state. If the configuration information received by the first communication node does not contain any indication information, namely the configuration information is suitable for an RRC connection state, an RRC idle state and an RRC inactive state, correspondingly, if the first communication node is in the RRC connection state and receives the multicast broadcasting service with the configured configuration information, the first communication node reconfigures when receiving the configuration information, and continues to receive the multicast broadcasting service with the configuration information, and if the first communication node subsequently shifts to the RRC inactive state or the RRC idle state, the configuration information can also be used continuously to receive the multicast broadcasting service.

In one embodiment, the configuration information includes a specific value indicating information for indicating that the configuration information is applicable to the first communication node in any connection state.

For example, a multicast broadcast service is applicable to both an RRC connected state and an RRC inactive state for a first communication node, i.e., the first communication node is capable of receiving the multicast broadcast service in both the RRC connected state and the RRC inactive state. If the configuration information received by the first communication node includes a specific value indicating information, namely, the configuration information is suitable for the RRC connection state and the RRC non-activated state, and correspondingly, if the first communication node is already in the RRC connection state and receives the multicast broadcast service with the configured configuration information, the first communication node reconfigures when receiving the configuration information, continues to receive the multicast broadcast service with the configuration information, and if the first communication node subsequently shifts to the RRC non-activated state, the configuration information can also be continuously used to receive the multicast broadcast service.

For another example, the multicast broadcast service is applicable to an RRC connected state, an RRC idle state, and an RRC inactive state, i.e., the first communication node is capable of receiving the multicast broadcast service in all of the RRC connected state, the RRC idle state, and the RRC inactive state. If the configuration information received by the first communication node includes a specific value indicating information, namely, the configuration information is applicable to an RRC connection state, an RRC idle state and an RRC inactive state, correspondingly, if the first communication node is already in the RRC connection state and receives the multicast broadcast service with the configured configuration information, the first communication node reconfigures when receiving the configuration information, and continues to receive the multicast broadcast service with the configuration information, and if the first communication node subsequently shifts to the RRC inactive state or the RRC idle state, the configuration information can also be continuously used to receive the multicast broadcast service.

In one embodiment, the configuration information corresponding to the multicast broadcast service received by the first communication node may include initial configuration information applicable to the RRC connected state.

For example, if the first communication node is in the RRC connected state of the network just accessed and has not received configuration information that a multicast broadcast service is suitable for use in the RRC connected state, and if the first communication node at this time receives a set of configuration information for the multicast broadcast service and its associated indication information indicates that the configuration information is suitable for use in the RRC connected state, the first communication node in the RRC connected state will perform initial configuration according to the configuration information and will receive the multicast broadcast service in a configured mode

In one embodiment, the configuration information corresponding to the multicast broadcast service received by the first communication node may include reconfiguration information applicable to the RRC connected state.

For example, if a first communication node is in RRC-connected state and has completed initial configuration for a multicast broadcast service, and the first communication node at this time receives a set of configuration information for the multicast broadcast service, and its associated indication information indicates that the configuration information is applicable to RRC-connected state, the first communication node in RRC-connected state will reconfigure according to the configuration information and will receive the multicast broadcast service in configured mode.

In one embodiment, the configuration information corresponding to the multicast broadcast service received by the first communication node may include initial configuration information applicable to the RRC inactive state.

For example, the first communication node has not received the configuration information of a multicast broadcast service applicable to the RRC inactive state, if the first communication node at this time receives a set of configuration information of the multicast broadcast service, and the associated indication information indicates that the configuration information is applicable to the RRC inactive state, the first communication node will receive the multicast broadcast service with the configuration information after entering the RRC inactive state.

In one embodiment, the configuration information corresponding to the multicast broadcast service received by the first communication node may include reconfiguration information applicable to an RRC inactive state.

For example, the first communication node receives a set of configuration information for a multicast broadcast service, and its associated indication information indicates that the configuration information is applicable to an RRC inactive state, and the first communication node has completed a set of configuration for the multicast broadcast service in the RRC inactive state, and will receive the multicast broadcast service with the reconfigured configuration information after the first communication node enters the RRC inactive state.

In one embodiment, the configuration information corresponding to the multicast broadcast service received by the first communication node may include initial configuration information applicable to the RRC idle state.

For example, the first communication node has not received the configuration information of a multicast broadcast service applicable to the RRC idle state, if the first communication node at this time receives a set of configuration information of the multicast broadcast service, and the associated indication information indicates that the configuration information is applicable to the RRC idle state, after the first communication node is in the RRC idle state, the multicast broadcast service is received with the configuration information.

In one embodiment, the configuration information corresponding to the multicast broadcast service received by the first communication node may include reconfiguration information applicable to an RRC idle state.

For example, a first communication node receives a set of configuration information for a multicast broadcast service and its associated indication information indicates that the configuration information is applicable to an RRC idle state, and the first communication node has completed a set of configurations for the multicast broadcast service in the RRC idle state, and when the first communication node enters the RRC idle state, it will receive the multicast broadcast service with the reconfigured configuration information.

It should be noted that, for the same first communication node, the same multicast broadcast service is suitable for configuration information in different connection states, and the performed configuration flows are independent and do not interfere with each other. For example, a multicast broadcast service is applicable to an RRC connected state and an RRC inactive state for a first communication node, if the first communication node receives two configuration information 1 and 2 of the multicast broadcast service, the configuration information 1 is applicable to the RRC connected state, and the other configuration information 2 is applicable to the RRC inactive state, if the first communication node has completed a set of configuration for the multicast broadcast service in the RRC connected state, and has not performed an initial configuration for the multicast broadcast service in the RRC inactive state, the first communication node is in the RRC connected state, and will receive the multicast broadcast service in a mode after the configuration information 1 is reconfigured, and the first communication node shifts to the RRC inactive state, and will receive the multicast broadcast service in a mode after the configuration information 2 is initially configured.

In one embodiment, the configuration information includes part or all of the radio bearer information and/or transmission resource information.

Specifically, a set of configuration information for multicast broadcast service may include all radio bearer information MRB and/or all transmission resource information, and may also include part of the radio bearer information MRB and/or part of the transmission resource information.

Further, when the first communication node receives configuration information of a multicast broadcast service applicable to a connection state, if the first communication node has completed configuring the multicast broadcast service in the connection state, the first communication node may analyze whether there is a change between an information element that has completed configuring and an information element of newly received configuration information, and if the change, for example, assignment transmission change, may reconfigure for the information element that has changed.

In an embodiment, there is provided a multicast broadcast service configuration method, as shown in fig. 3, the method being performed by a second communication node, including:

and generating and transmitting configuration information to the first communication node, wherein the configuration information is associated with indication information, the configuration information is used for indicating the first communication node to receive radio bearer information and/or transmission resource information which are required to be configured by the multicast broadcast service, and the indication information is used for indicating the connection state of the first communication node to which the configuration information is applicable.

Specifically, the second communication node transmits PTM configuration (Point to Multipoint configuration, point-to-multipoint configuration information) of an MBS (Multimedia Broadcast Multicast Services, multicast broadcast service), wherein indication information is associated in the configuration information, the configuration information indicates radio bearer information and/or transmission resource information required to be configured by the first communication node receiving the multicast broadcast service, and the indication information is used for indicating a connection state of the first communication node to which the configuration information is applicable. Accordingly, after the first communication node receives the configuration information, the connection state to which the configuration information is applicable may be determined according to the indication information, and then, when receiving the multicast broadcast service, the first communication node receives the configuration information corresponding to the current connection state. Compared with the prior art, the configuration mode provided by the application can enable the first communication node to timely and correctly receive the multicast broadcast service.

The application does not limit the actual expression form of the second communication node, and the first communication node can be core network equipment and access network equipment in a mobile communication system, road side units in a vehicle-mounted communication system, base station equipment, relay equipment, new energy road side and vehicle equipment in actual life.

In one embodiment, the configuration information of the multicast broadcast service indicated by the indication information is applicable to an RRC connection state, i.e. the second communication node sends the configuration information of the multicast broadcast service to the first communication node, and the first communication node will configure according to the configuration information and will receive the multicast broadcast service in the RRC connection state according to the configuration information of the multicast broadcast service.

In one embodiment, the configuration information of the multicast broadcast service indicated by the indication information may also be CM-Connected (CONNECTION MANAGEMENT Connected, CM Connected state).

When the configuration information of the multicast broadcast service is applicable to the RRC connection state, the RRC connection state may be an RRC connection state recovered from the RRC inactive state, that is, the second communication node sends the configuration information of the multicast broadcast service to the first communication node, the first communication node configures the configuration information according to the configuration information, and receives the multicast broadcast service after the RRC connection state recovered from the RRC inactive state according to the configuration information of the multicast broadcast service.

When the configuration information of the multicast broadcast service is applicable to the RRC connection state, the RRC connection state may be an RRC connection state recovered from the RRC idle state, that is, the second communication node sends the configuration information of the multicast broadcast service to the first communication node, the first communication node configures the configuration information according to the configuration information, and receives the multicast broadcast service after the RRC connection state recovered from the RRC idle state according to the configuration information of the multicast broadcast service.

In one embodiment, the configuration information of the multicast broadcast service indicated by the indication information is applicable to an RRC inactive state, i.e. the second communication node sends the configuration information of the multicast broadcast service to the first communication node, and the first communication node will configure according to the configuration information and will receive the multicast broadcast service in the RRC inactive state according to the configuration information of the multicast broadcast service.

In one embodiment, the configuration information of the multicast broadcast service indicated by the indication information may also be CM-Inactive (CONNECTION MANAGEMENT INACTIVE, CM Inactive).

In one embodiment, the configuration information of the multicast broadcast service indicated by the indication information is applicable to an RRC idle state, i.e. the second communication node sends the configuration information of the multicast broadcast service to the first communication node, and the first communication node will configure according to the configuration information and will receive the multicast broadcast service in the RRC idle state according to the configuration information of the multicast broadcast service.

In one embodiment, the configuration information of the multicast broadcast service indicated by the indication information may also be CM-Idle (CONNECTION MANAGEMENT IDLE, CM Idle state).

In an embodiment, the indication information is included or not included in the generated configuration information when the multicast broadcast service is applicable to only one connection state for the first communication node. Specifically, when the configuration information is applicable to only one connection state, that is, the first communication node can only receive the multicast broadcast service in one connection state, the second communication node can achieve the purpose of indicating the connection state to which the configuration information is applicable by including or not including indication information in the configuration information of the multicast broadcast service.

In an embodiment, the configuration information includes indication information for indicating only one connection state for which the configuration information is applicable. Specifically, when the multicast broadcast service is applicable to only one connection state for the first communication node, that is, the first communication node receives the multicast broadcast service only in one connection state, the second communication node indicates that the configuration information is applicable to one connection state by including the indication information in the configuration information.

In an embodiment, the configuration information does not include indication information for indicating only one connection state for which the configuration information is applicable. Specifically, when the multicast broadcast service is applicable to only one connection state for the first communication node, that is, the first communication node receives the multicast broadcast service only in one connection state, the second communication node indicates that the configuration information is applicable to one connection state by not including the indication information in the configuration information.

In an embodiment, when the multicast broadcast service is applicable to two or more connection states for the first communication node, at least one set of configuration information corresponding to the generated multiple connection states includes indication information. Specifically, when the configuration information of a multicast broadcast service is applicable to two or more connection states, that is, the second communication node receives the multicast broadcast service in two or more connection states according to the first communication node, by sending at least one set of configuration information containing indication information in multiple sets of configuration information applicable to different connection states of the multicast broadcast service, the first communication node receiving the multicast broadcast service can distinguish the connection states to which the multiple sets of configuration information of the multicast broadcast service are respectively applicable, thereby realizing corresponding configuration and use of the configuration information.

In an embodiment, a set of configuration information applicable to a connection state corresponding to the multicast broadcast service includes indication information for indicating a connection state to which the configuration information is applicable. Specifically, according to the situation that the first communication node receives the multicast broadcast service in two or more connection states, the second communication node indicates that the configuration information is applicable to one connection state by including the indication information in the set of sent configuration information applicable to the one connection state, and correspondingly, the other multicast broadcast service does not include the configuration information of the indication information to indicate that the configuration information is applicable to other connection states.

In an embodiment, another set of configuration information applicable to another connection state corresponding to the multicast broadcast service includes indication information for indicating another connection state to which the configuration information is applicable.

In an embodiment, the configuration information does not include indication information for indicating that the configuration information is applicable to the first communication node in any connection state. For example, the second communication node enables the first communication node receiving the configuration information to receive the multicast broadcast service in the RRC connection state, the RRC idle state or the RRC inactive state by not including the indication information in the transmitted configuration information of the multicast broadcast service according to the condition that the first communication node can receive the multicast broadcast service in the RRC connection state, the RRC idle state or the RRC inactive state.

In one embodiment, the configuration information includes a specific value indicating information for indicating that the configuration information is applicable to the first communication node in any connection state

For example, the second communication node receives a multicast broadcast service according to the condition that the first communication node can receive the multicast broadcast service in the RRC connection state, the RRC idle state and the RRC inactive state, and for the configuration information sent by the multicast broadcast service, the configuration information includes specific value indication information, so that the first communication node that receives the configuration information receives the multicast broadcast service in the RRC connection state, the RRC idle state or the RRC inactive state.

In an embodiment, the second communication node generates the configuration information according to an initial configuration requirement of the first communication node for the multicast broadcast service, which is applicable to the RRC connection state, or according to a reconfiguration requirement of the first communication node, which is applicable to the RRC connection state, or according to an initial configuration requirement of the first communication node, which is applicable to the RRC inactive state, or according to an initial configuration requirement of the first communication node, which is applicable to the RRC idle state, or according to a reconfiguration requirement of the first communication node, which is applicable to the RRC idle state, or according to any combination of the above requirements.

In one embodiment, a multicast broadcast service configuration apparatus, as shown in fig. 4, is configured in a first communication node, and includes:

A receiving module 200, configured to receive configuration information, where the configuration information is associated with indication information, the configuration information is used to indicate radio bearer information and/or transmission resource information that are required to be configured by the first communication node to receive the multicast broadcast service, and the indication information is used to indicate a connection state of the first communication node to which the configuration information is applicable.

In one embodiment, a multicast broadcast service configuration apparatus, as shown in fig. 5, is configured in the first place

The receiving module 200 is configured to receive the multicast broadcast service with the configuration information corresponding to 5 when the first communication node is in the connection state.

Specifically, the first communication node further includes a configuration module 300, the receiving module 200 receives configuration information of the multicast broadcast service, the configuration module 300 configures according to a connection state to which the configuration information indicated by the indication information is applicable, and when the first communication node is in the connection state, the receiving module 200 receives the multicast broadcast service with the corresponding applicable configuration information.

0 In one embodiment, the configuration information of the multicast broadcast service indicated by the indication information is adapted to an RRC connection

In a state that the first communication node can receive the multicast broadcast service in the RRC connected state, correspondingly, the first communication node will receive the multicast broadcast service according to the configuration information of the multicast broadcast service in the RRC connected state.

In one embodiment, the RRC connection state to which the configuration information of the multicast broadcast service is applicable may be an RRC connection state recovered from a 5RRC inactive state or an RRC connection state recovered from an RRC idle state.

In an embodiment, the configuration information of the multicast broadcast service indicated by the indication information is applicable in an RRC inactive state, i.e. the first communication node is able to receive the multicast broadcast service in an RRC inactive state, and, accordingly,

The first communication node receives the multicast broadcast service according to the configuration information of the multicast broadcast service in the RRC inactive state.

In one embodiment, the configuration information of the multicast broadcast service indicated by the indication information is applicable to an RRC idle state, i.e. the first communication node is capable of receiving the multicast broadcast service in the RRC idle state according to the configuration information of the multicast broadcast service, and correspondingly, the first communication node is to receive the multicast broadcast service in the RRC idle state according to the configuration information.

5 In one embodiment, when the multicast broadcast service is applicable to only one connection state for the first communication node,

The configuration information may or may not contain indication information.

In one embodiment, the configuration information includes indication information for indicating only one connection state for which the configuration information is applicable. Specifically, when the multicast broadcast service is applicable to only one connection state, i.e., the first communication node receives the multicast broadcast service in only one connection state, the configuration information is indicated to be applicable to one connection state by including the indication information in the configuration information.

In one embodiment, another set of configuration information applicable to another connection state corresponding to the multicast broadcast service includes indication information for indicating another connection state to which the configuration information is applicable.

In one embodiment, a set of configuration information for one connection state corresponding to the multicast broadcast service includes indication information for indicating the one connection state to which the configuration information applies, and another set of configuration information for another connection state corresponding to the multicast broadcast service includes indication information for indicating the other connection state to which the configuration information applies.

In one embodiment, the configuration information corresponding to the multicast broadcast service received by the first communication node may be initial configuration information applicable to the RRC connection state, reconfiguration information applicable to the RRC connection state, initial configuration information applicable to the RRC inactive state, reconfiguration information applicable to the RRC inactive state, initial configuration information applicable to the RRC idle state, reconfiguration information applicable to the RRC idle state, or a combination of any of the above configuration information.

In one embodiment, a multicast broadcast service configuration apparatus, as shown in fig. 6, is configured in a first communication node, and includes:

A sending module 100, configured to generate and send configuration information to the first communication node, where the configuration information is associated with indication information, where the configuration information is used to indicate radio bearer information and/or transmission resource information that are required to be configured by the first communication node to receive the multicast broadcast service, and the indication information is used to indicate a connection state of the first communication node to which the configuration information is applicable.

When the configuration information of the multicast broadcast service is applicable to the RRC connection state, the RRC connection state may be an RRC connection state recovered from the RRC idle state, that is, the second communication node sends the configuration information of the multicast broadcast service to the first communication node, and the first communication node configures the configuration information according to the configuration information of the multicast broadcast service, and receives the multicast broadcast service after the RRC connection state recovered from the RRC idle state according to the configuration information of the multicast broadcast service.

In an embodiment, the configuration information includes indication information for indicating only one connection state for which the configuration information is applicable. Specifically, when the multicast broadcast service is applicable to only one connection state, i.e., the first communication node receives the multicast broadcast service in only one connection state, the second communication node indicates that the configuration information is applicable to one connection state by including the indication information in the configuration information.

In an embodiment, the configuration information does not include indication information for indicating only one connection state for which the configuration information is applicable. Specifically, when the multicast broadcast service is applicable to only one connection state, i.e., the first communication node receives the multicast broadcast service in only one connection state, the second communication node indicates that the configuration information is applicable to one connection state by not including the indication information in the configuration information.

In one embodiment, an apparatus comprises: one or more processors;

A memory for storing one or more programs;

When the one or more programs are executed by the one or more processors, the one or more processors are caused to implement the method as in any of the embodiments of the present application.

The invention also provides a system comprising the first communication node and the second communication node.

The present invention also provides a computer-readable storage medium storing program instructions which, when executed by a computer, perform the above-described (first communication node) multicast broadcast service configuration method.

The present invention also provides a computer-readable storage medium storing program instructions which, when executed by a computer, perform the above-described (second communication node) multicast broadcast service configuration method.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any other combination. When implemented in software, 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 the computer program instructions are loaded and executed on a computer, the processes or functions in accordance with embodiments of the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line), or wireless (e.g., infrared, wireless, microwave, etc.). Computer readable storage media can be any available media that can be accessed by a computer or data storage devices, such as servers, data centers, etc., that contain an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a digital video disc (digital video disc, DVD)), or a semiconductor medium (e.g., a Solid State Drive (SSD)), or the like.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

The foregoing is merely illustrative of the preferred embodiments of the present invention and is not intended to limit the embodiments and scope of the present invention, and it should be appreciated by those skilled in the art that equivalent substitutions and obvious variations made using the description and illustrations of the present invention should be included in the scope of the present invention.

Claims

1. A method of multicast broadcast service configuration, the method performed by a first communication node, comprising:

2. The method according to claim 1, further comprising, when the first communication node is in the connected state, receiving the multicast broadcast service with the corresponding configuration information.

3. The multicast broadcast service configuration method according to claim 1, wherein the connection state includes an RRC connection state, an RRC inactive state and an RRC idle state.

4. The multicast broadcast service configuration method as claimed in claim 1, wherein,

When the multicast broadcast service is only applicable to one connection state for the first communication node, the indication information is contained or not contained in the configuration information; or (b)

When the multicast broadcast service is applicable to two or more connection states for the first communication node, at least one set of configuration information in the sets of configuration information corresponding to the connection states comprises the indication information.

5. The multicast broadcast service configuration method as claimed in claim 1 or 3 or 4, wherein,

The configuration information comprises indication information which is used for indicating one connection state applicable to the configuration information;

Or (b)

The configuration information does not contain indication information, and is used for indicating one connection state for which the configuration information is applicable only.

6. The multicast broadcast service configuration method as claimed in claim 1 or 3 or 4, wherein,

The set of configuration information suitable for one connection state corresponding to the multicast broadcast service comprises the indication information, which is used for indicating the one connection state suitable for the configuration information

And/or

The other set of configuration information applicable to the other connection state corresponding to the multicast broadcast service comprises the indication information, and the indication information is used for indicating the other connection state applicable to the configuration information.

7. The method for configuring multicast and broadcast service according to claim 1, wherein the set or sets of configuration information corresponding to the multicast and broadcast service received by the first communication node at least includes one or more of:

Initial configuration information applicable to RRC connection state;

reconfiguration information applicable to RRC connected state;

Initial configuration information applicable to the RRC inactive state;

reconfiguration information applicable to the RRC inactive state;

Initial configuration information applicable to RRC idle state;

and the method is applicable to the reconfiguration information of the RRC idle state.

8. The multicast broadcast service configuration method according to claim 1, wherein the configuration information includes part or all of radio bearer information and/or transmission resource information.

9. A method of multicast broadcast service configuration, the method performed by a second communication node, comprising:

10. The multicast broadcast service configuration method according to claim 9, wherein the connection state includes an RRC connection state, an RRC inactive state and an RRC idle state;

The RRC connection state includes an RRC connection state restored from an RRC inactive state, and an RRC connection state restored from an RRC idle state.

11. The multicast broadcast service configuration method as claimed in claim 9, wherein,

When the multicast broadcast service is applicable to only one connection state of the first communication node, the generated configuration information contains or does not contain the indication information; or (b)

When the multicast broadcast service is applicable to two or more connection states for the first communication node, at least one set of configuration information in the sets of configuration information corresponding to the generated multiple connection states contains the indication information.

12. The multicast broadcast service configuration method according to claim 9, 10 or 11, wherein,

Or (b)

The configuration information does not contain indication information, and is used for indicating one connection 5 state for which the configuration information is applicable only.

13. The multicast broadcast service configuration method according to claim 9, 10 or 11, wherein,

0 And/or

14. The multicast broadcast service configuration method according to claim 9 or 10, characterized in that

The configuration information does not contain the indication information or contains the indication information 5 with a specific value, and is used for indicating that the configuration information is applicable to the first communication node in any connection state.

15. The multicast broadcast service configuration method according to claim 9, wherein the second communication node generates one or more sets of the configuration information according to the configuration requirement of the first communication node for the multicast broadcast service;

the configuration requirements include at least:

0, the multicast broadcast service is suitable for the initial configuration requirement of the RRC connection state;

the multicast broadcast service is suitable for the reconfiguration requirement of the RRC connection state;

the multicast broadcast service is suitable for the initial configuration requirement of the RRC inactive state;

the multicast broadcast service is suitable for the reconfiguration requirement of the RRC inactive state.

The multicast broadcast service is suitable for the initial configuration requirement of the RRC idle state;

And 5, the reconfiguration requirement of the multicast broadcast service, which is applicable to the RRC idle state.

16. The multicast broadcast service configuration method as claimed in claim 1, wherein,

The configuration information includes part or all of radio bearer information and/or transmission resource information.

17. A multicast broadcast service configuration apparatus, the apparatus being configured at a first communication node, comprising:

18. The multicast broadcast service configuration device according to claim 17, wherein the receiving module is further configured to: and when the first communication node is in the connection state, receiving the multicast broadcast service according to the corresponding configuration information.

19. A multicast broadcast service configuration apparatus, the apparatus being configured at a second communication node, comprising: