Information sending method and apparatus, information receiving methods and apparatuses, network device, terminal and storage medium

Abstract

The present disclosure relates to the technical field of communications, and in particular to an information sending method and apparatus, information receiving methods and apparatuses, a network device, a terminal and a storage medium. The information sending method comprises: sending first information to a distributed unit, wherein the first information comprises a first request, the first request is used for requesting that the distributed unit establish a first radio bearer (RB), and the first RB is used for communication between the distributed unit and a terminal. In the embodiments of the present disclosure, a central unit may request, by sending to a distributed unit first information carrying a first request, that the distributed unit establish a first RB, and the first RB may be used for communication between the distributed unit and a terminal. Therefore, when there is information that cannot be directly transmitted between the distributed unit and the terminal, the first RB can be used to implement direct transmission of the information between the distributed unit and the terminal.

Description

Information sending and receiving methods and devices, network equipment, terminals and storage media Technical Field

[0001] This disclosure relates to the field of communication technology, and more specifically, to information transmission methods, information reception methods, terminals, network devices, communication systems, and storage media. Background Technology

[0002] Terminals can communicate with access network devices. In a separate architecture, access network devices can include Central Units (CUs) and Distributed Units (DUs), where the DUs can be connected to the core network. Terminals can communicate with either the Central Unit or the DUs; however, in some cases, communication between the terminal and the DUs is restricted, which can lead to excessive overhead and latency issues. Summary of the Invention

[0003] The embodiments of this disclosure provide methods and apparatus for sending and receiving information, network devices, terminals, and storage media to solve technical problems in the related art.

[0004] According to a first aspect of the present disclosure, an information transmission method is proposed, executed by a central unit, the method comprising: sending first information to a distribution unit, the first information including a first request, wherein the first request is used to request the distribution unit to establish a first radio bearer (RB), wherein the first RB is used for communication between the distribution unit and a terminal.

[0005] According to a second aspect of the present disclosure, an information receiving method is provided, executed by a distribution unit, the method comprising: receiving first information sent by a central unit, the first information including a first request, wherein the first request is used to request the distribution unit to establish a first RB, wherein the first RB is used for the distribution unit to communicate with a terminal.

[0006] According to a third aspect of the present disclosure, an information receiving method is proposed, executed by a terminal, the method comprising: receiving fourth information sent by a distribution unit, wherein the fourth information includes configuration information of a first RB, the configuration information of the first RB being used by the terminal to establish a first RB, and the first RB being used by the distribution unit to communicate with the terminal.

[0007] According to a fourth aspect of the present disclosure, an information transmission apparatus is provided, the apparatus comprising: a transmission module configured to transmit first information to a distribution unit, the first information including a first request, wherein the first request is used to request the distribution unit to establish a first radio bearer (RB), wherein the first RB is used for communication between the distribution unit and a terminal.

[0008] According to a fifth aspect of the present disclosure, an information receiving apparatus is provided, the apparatus comprising: a receiving module configured to receive first information sent by a central unit, the first information including a first request, wherein the first request is used to request a distribution unit to establish a first radio bearer (RB), wherein the first RB is used for communication between the distribution unit and a terminal.

[0009] According to a sixth aspect of the present disclosure, an information receiving apparatus is provided, the apparatus comprising: a receiving module configured to receive fourth information sent by a distribution unit, wherein the fourth information includes configuration information of a first RB, the configuration information of the first RB being used by a terminal to establish a first RB, and the first RB being used by the distribution unit to communicate with the terminal.

[0010] According to a seventh aspect of the present disclosure, a network device is provided, comprising: one or more processors; wherein the network device is configured to perform an information transmission method according to any one of the first aspect and optional embodiments thereof, and / or an information reception method according to any one of the second aspect and optional embodiments thereof.

[0011] According to an eighth aspect of the present disclosure, a terminal is provided, comprising: one or more processors; wherein the terminal is configured to perform the information receiving method according to any one of the third aspect and optional embodiments thereof.

[0012] According to a ninth aspect of the present disclosure, a communication system is provided, including a terminal and a network device, wherein the network device is configured to implement the information transmission method of any one of the first aspect and the optional embodiments of the first aspect, and / or the information reception method of any one of the second aspect and the optional embodiments of the second aspect, and the terminal is configured to implement the information reception method of any one of the third aspect and the optional embodiments of the third aspect.

[0013] According to a tenth aspect of the present disclosure, a storage medium is provided that stores instructions, which, when executed on a communication device, cause the communication device to perform an information transmission method according to any one of the first aspect and optional embodiments of the first aspect, and / or an information reception method according to any one of the second aspect, optional embodiments of the second aspect, third aspect, and optional embodiments of the third aspect.

[0014] According to the eleventh aspect of the present disclosure, a program product is provided that, when executed by a communication device, causes the communication device to perform the information sending method as described in any one of the first aspect and the optional embodiments of the first aspect, and / or the information receiving method as described in any one of the second aspect, the optional embodiments of the second aspect, the third aspect, and the optional embodiments of the third aspect.

[0015] According to embodiments of this disclosure, the central unit can send first information carrying a first request to the distribution unit to request the distribution unit to establish a first RB. The first RB can be used for communication between the distribution unit and the terminal, such as transmitting RRC signaling. Accordingly, when there is information that cannot be directly transmitted between the distribution unit and the terminal, the first RB can be used to realize direct information transmission between the distribution unit and the terminal, such as direct transmission of RRC signaling. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1A is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

[0018] Figure 1B is a schematic diagram of a split architecture according to an embodiment of the present disclosure.

[0019] Figure 1C is a schematic diagram of another split architecture shown according to an embodiment of the present disclosure.

[0020] Figure 1D is a schematic diagram illustrating communication between a terminal and an access network device according to an embodiment of the present disclosure.

[0021] Figure 2 is an interactive schematic diagram of an information sending method according to an embodiment of the present disclosure.

[0022] Figure 3A is a schematic diagram of a protocol stack according to an embodiment of the present disclosure.

[0023] Figure 3B is a schematic diagram of another protocol stack according to an embodiment of the present disclosure.

[0024] Figure 4A is a schematic diagram illustrating the interaction of a terminal, a distribution unit, and a central unit according to an embodiment of the present disclosure.

[0025] Figure 4B is a schematic diagram illustrating the interaction of a terminal, a distribution unit, and a central unit according to an embodiment of the present disclosure.

[0026] Figure 4C is a schematic diagram illustrating the interaction of a terminal, a distribution unit, and a central unit according to an embodiment of the present disclosure.

[0027] Figure 5A is a schematic flowchart illustrating a failure indication according to an embodiment of the present disclosure.

[0028] Figure 5B is a schematic flowchart illustrating another failure indication according to an embodiment of the present disclosure.

[0029] Figure 6 is a schematic block diagram of an information transmission device according to an embodiment of the present disclosure.

[0030] Figure 7 is a schematic block diagram of an information receiving device according to an embodiment of the present disclosure.

[0031] Figure 8 is a schematic block diagram of an information receiving device according to an embodiment of the present disclosure.

[0032] Figure 9A is a schematic diagram of the structure of the communication device proposed in an embodiment of this disclosure.

[0033] Figure 9B is a schematic diagram of the chip structure proposed in an embodiment of this disclosure. Detailed Implementation

[0034] The embodiments of this disclosure provide methods and apparatus for sending and receiving information, network devices, terminals, and storage media.

[0035] In a first aspect, embodiments of this disclosure propose an information transmission method executed by a central unit. The method includes: sending first information to a distribution unit, the first information including a first request, wherein the first request is used to request the distribution unit to establish a first radio bearer (RB), wherein the first RB is used for communication between the distribution unit and a terminal.

[0036] In the above embodiments, the central unit can send first information carrying a first request to the distribution unit to request the distribution unit to establish a first RB. The first RB can be used for communication between the distribution unit and the terminal, such as transmitting RRC signaling. Accordingly, when there is information that cannot be directly transmitted between the distribution unit and the terminal, the first RB can be used to realize direct information transmission between the distribution unit and the terminal, such as direct transmission of RRC signaling.

[0037] In the above embodiments, the central unit can send first information carrying a first request to the distribution unit to request the distribution unit to establish a first RB. The first RB can be used for communication between the distribution unit and the terminal, such as transmitting AI-related training data, AI models, perception results, and other information. Accordingly, when there is information between the distribution unit and the terminal that cannot be directly transmitted, the first RB can be used to achieve direct information transmission between the distribution unit and the terminal, such as direct data transmission, which can be used for AI or perception-related tasks.

[0038] In conjunction with some embodiments of the first aspect, in some embodiments, the first information further includes auxiliary information, wherein the auxiliary information is used to assist the distribution unit in establishing the first RB.

[0039] In conjunction with some embodiments of the first aspect, in some embodiments, the auxiliary information includes at least one of the following: Packet Data Convergence Protocol (PDCP) configuration; security information of the first RB; and service quality of the first RB transmission.

[0040] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes: receiving second information sent by the distribution unit, the second information including configuration information of the first RB.

[0041] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes: sending third information to the distribution unit, the third information including a first interaction identifier, the third information being used to trigger the distribution unit to send fourth information to the terminal, wherein the first interaction identifier is an identifier of the interaction corresponding to the distribution unit sending the fourth information to the terminal, and the fourth information includes configuration information of the first RB.

[0042] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes: receiving fifth information, wherein the fifth information includes first indication information and a first interaction identifier, the first indication information being used to indicate whether the first RB configured for the interaction corresponding to the first interaction identifier has been successfully established.

[0043] In conjunction with some embodiments of the first aspect, in some embodiments, receiving the fifth information includes at least one of the following: receiving the fifth information sent by the terminal through a pre-established second RB; receiving the fifth information sent by the distribution unit through the first RB, wherein the fifth information sent by the distribution unit is determined based on sixth information sent by the terminal to the distribution unit through the first RB, the sixth information including second indication information and a first interaction identifier, the second indication information being used to indicate whether the first RB configured for the interaction corresponding to the first interaction identifier has been successfully established.

[0044] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes: upon receiving the fifth information sent by the distribution unit through a pre-established second RB, sending seventh information to the distribution unit through the first RB, wherein the seventh information includes third indication information and the first interaction identifier, the seventh indication information being used to indicate whether the first RB configured for the interaction corresponding to the first interaction identifier has been successfully established.

[0045] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes at least one of the following: receiving first failure information sent by the terminal, wherein the first failure information is used to indicate the failure of the first RB; and receiving second failure information sent by the distribution unit, wherein the second failure information is used to indicate the failure of the first RB.

[0046] Secondly, embodiments of this disclosure propose an information receiving method executed by a distribution unit. The method includes: receiving first information sent by a central unit, the first information including a first request, wherein the first request is used to request the distribution unit to establish a first radio bearer (RB), wherein the first RB is used for communication between the distribution unit and a terminal.

[0047] In conjunction with some embodiments of the second aspect, in some embodiments, the first information further includes auxiliary information, wherein the auxiliary information is used to assist the distribution unit in establishing the first RB.

[0048] In conjunction with some embodiments of the second aspect, in some embodiments, the auxiliary information includes at least one of the following: Packet Data Convergence Protocol (PDCP) configuration; security information of the first RB; and service quality of the first RB transmission.

[0049] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes: sending fourth information to the terminal, the fourth information including configuration information of the first RB, the configuration information of the first RB being used by the terminal to establish the first RB.

[0050] In conjunction with some embodiments of the second aspect, in some embodiments, the configuration information of the first RB includes the security information of the first RB, which is used by the terminal to generate a security key for the first RB.

[0051] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes: sending second information to the central unit, the second information including configuration information of the first RB.

[0052] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes: receiving third information sent by the central unit, the third information including a first interaction identifier, wherein the first interaction identifier is an identifier of an interaction corresponding to the fourth information sent by the distribution unit to the terminal, and the fourth information includes configuration information of the first RB.

[0053] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes: sending fifth information, wherein the fifth information includes first indication information and the first interaction identifier, the first indication information being used to indicate whether the first RB configured for the interaction corresponding to the first interaction identifier has been successfully established.

[0054] In conjunction with some embodiments of the second aspect, in some embodiments, sending the fifth information includes at least one of the following: receiving the fifth information sent by the terminal through a pre-established second RB, and sending the fifth information in the second RB to the central unit; sending the fifth information to the central unit through the first RB, wherein the fifth information sent to the central unit through the first RB is determined based on the sixth information sent by the terminal to the distribution unit through the first RB, the sixth information including second indication information and the first interaction identifier, the second indication information being used to indicate whether the first RB configured for the interaction corresponding to the first interaction identifier has been successfully established.

[0055] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes: receiving seventh information sent by the central unit when the fifth information in the second RB is sent to the central unit, wherein the seventh information includes third indication information and the first interaction identifier, the third indication information being used to indicate whether the first RB configured for the interaction corresponding to the first interaction identifier has been successfully established.

[0056] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes: sending second failure information to the central unit, wherein the second failure information is used to indicate the failure of the first RB.

[0057] Thirdly, embodiments of this disclosure propose an information receiving method executed by a terminal. The method includes: receiving fourth information sent by a distribution unit, wherein the fourth information includes configuration information of a first RB, the configuration information of the first RB being used by the terminal to establish a first RB, and the first RB being used by the distribution unit to communicate with the terminal.

[0058] In conjunction with some embodiments of the third aspect, in some embodiments, a security key for the first RB is generated based on the security information of the first RB in the configuration information of the first RB.

[0059] In conjunction with some embodiments of the third aspect, in some embodiments, the method further includes: sending fifth information, wherein the fifth information includes first indication information and the first interaction identifier, the first indication information being used to indicate whether the first RB configured for the interaction corresponding to the first interaction identifier has been successfully established.

[0060] In conjunction with some embodiments of the third aspect, in some embodiments, sending the fifth information includes at least one of the following: sending the fifth information to the central unit via a pre-established second RB; or sending the fifth information to the distribution unit via the first RB.

[0061] In conjunction with some embodiments of the third aspect, in some embodiments, the method further includes: sending first failure information to the central unit, wherein the first failure information is used to indicate the failure of the first RB.

[0062] Fourthly, embodiments of this disclosure provide an information transmission apparatus, the apparatus comprising: a transmission module configured to transmit first information to a distribution unit, the first information including a first request, wherein the first request is used to request the distribution unit to establish a first radio bearer (RB), wherein the first RB is used for communication between the distribution unit and a terminal.

[0063] Fifthly, embodiments of this disclosure provide an information receiving device, the device comprising: a receiving module configured to receive first information sent by a central unit, the first information including a first request, wherein the first request is used to request a distribution unit to establish a first radio bearer (RB), wherein the first RB is used for communication between the distribution unit and a terminal.

[0064] In a sixth aspect, embodiments of this disclosure provide an information receiving device, the device comprising: a receiving module configured to receive fourth information sent by a distribution unit, wherein the fourth information includes configuration information of a first RB, the configuration information of the first RB being used by a terminal to establish a first RB, and the first RB being used by the distribution unit to communicate with the terminal.

[0065] In a seventh aspect, embodiments of this disclosure provide a network device comprising: one or more processors; wherein the network device is configured to perform an information transmission method according to any one of the first aspect and optional embodiments thereof, and / or an information reception method according to any one of the second aspect and optional embodiments thereof.

[0066] Eighthly, embodiments of this disclosure provide a terminal comprising: one or more processors; wherein the terminal is configured to perform the information receiving method described in any one of the third aspect and optional embodiments thereof.

[0067] Ninthly, embodiments of this disclosure provide a communication system including a terminal and a network device, wherein the network device is configured to implement the information transmission method of any one of the first aspect and optional embodiments of the first aspect, and / or the information reception method of any one of the second aspect and optional embodiments of the second aspect, and the terminal is configured to implement the information reception method of any one of the third aspect and optional embodiments of the third aspect.

[0068] In a tenth aspect, embodiments of this disclosure provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform an information transmission method according to any one of the first aspect and optional embodiments of the first aspect, and / or an information reception method according to any one of the second aspect, optional embodiments of the second aspect, third aspect, and optional embodiments of the third aspect.

[0069] Eleventhly, embodiments of this disclosure provide a program product that, when executed by a communication device, causes the communication device to perform the information transmission method described in any one of the first aspect and optional embodiments of the first aspect, and / or the information reception method described in any one of the second aspect, optional embodiments of the second aspect, third aspect, and optional embodiments of the third aspect.

[0070] In a twelfth aspect, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the information sending method described in any one of the first aspect and optional embodiments of the first aspect, and / or the information receiving method described in any one of the second aspect, optional embodiments of the second aspect, third aspect, and optional embodiments of the third aspect.

[0071] It is understood that the aforementioned information sending and receiving devices, communication equipment, communication systems, storage media, program products, and computer programs are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects that can be achieved can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0072] This disclosure provides methods and apparatus for transmitting and receiving information, network devices, terminals, and storage media. In some embodiments, terms such as "information transmitting and receiving method" and "information processing method" and "communication method" can be used interchangeably; terms such as "information transmitting and receiving apparatus" and "information processing apparatus" and "communication apparatus" can be used interchangeably; and terms such as "information processing system" and "communication system" can be used interchangeably.

[0073] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0074] In each of the disclosed embodiments, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of the embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0075] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.

[0076] In the embodiments of this disclosure, unless otherwise stated, elements expressed in the singular, such as “a,” “an,” “the,” “the,” “the,” “the,” “the,” “the,” “this,” etc., may mean “one and only one,” or “one or more,” “at least one,” etc.

[0077] For example, when using articles such as "a", "an", and "the" in translation, the noun following the article can be understood as either a singular or a plural form.

[0078] In the embodiments disclosed herein, "multiple" refers to two or more.

[0079] In some embodiments, the terms “at least one of”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0080] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of B); in some embodiments, B (execute B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). The same applies when there are more branches such as A, B, C, etc.

[0081] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execution of A regardless of B); in some embodiments, B (execution of B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, C, etc.

[0082] The prefixes such as "first" and "second" in the embodiments of this disclosure are only for distinguishing different descriptive objects and do not constitute restrictions on the position, order, priority, number or content of the descriptive objects. For the description of the descriptive objects, please refer to the description in the claims or the context of the embodiments. The use of prefixes should not constitute unnecessary restrictions.

[0083] For example, if the descriptive object is "field," then the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is "level," then the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers; there can be one or more. For example, in "first device," the number of "devices" can be one or more. In addition, objects modified by different prefixes can be the same or different. For example, if the descriptive object is "device," then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the descriptive object is "information," then "first information" and "second information" can be the same information or different information, and their content can be the same or different.

[0084] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0085] In some embodiments, the terms “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “if…”, “if…”, etc., can be used interchangeably.

[0086] In some embodiments, the terms “greater than,” “greater than or equal to,” “not less than,” “more than,” “more than or equal to,” “not less than,” “higher than,” “higher than or equal to,” “not lower than,” and “above” can be used interchangeably, as can the terms “less than,” “less than or equal to,” “not greater than,” “less than,” “less than or equal to,” “not more than,” “lower than,” “lower than or equal to,” “not higher than,” and “below”.

[0087] In some embodiments, devices, etc., can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as “device”, “equipment”, “circuit”, “network element”, “node”, “function”, “unit”, “section”, “system”, “network”, “chip”, “chip system”, “entity”, and “subject” can be used interchangeably.

[0088] In some embodiments, "network" can be interpreted as devices included in a network (e.g., access network devices, core network devices, etc.).

[0089] In some embodiments, the terms "access network device (AN device)," "radio access network device (RAN device)," "base station (BS)," "radio base station," "fixed station," "node," "access point," "transmission point (TP)," "reception point (RP)," "transmission / reception point (TRP)," "panel," "antenna panel," "antenna array," "cell," "macro cell," "small cell," "femto cell," "pico cell," "sector," "cell group," "serving cell," "carrier," "component carrier," and "bandwidth part (BWP)" can be used interchangeably.

[0090] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", "subscriber station", "mobile unit", "subscriber unit", "wireless unit", "remote unit", "mobile device", "wireless device", "wireless communication device", "remote device", "mobile subscriber station", "access terminal", "mobile terminal", "wireless terminal", "remote terminal", "handset", "user agent", "mobile client", and "client" can be used interchangeably.

[0091] In some embodiments, access network devices, core network devices, or network devices can be replaced by terminals. For example, embodiments of this disclosure can also be applied to structures where communication between access network devices, core network devices, or network devices and terminals is replaced by communication between multiple terminals (e.g., device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, the structure can also be configured such that the terminal has all or part of the functions of the access network device. Furthermore, terms such as "uplink" and "downlink" can be replaced with terms corresponding to communication between terminals (e.g., "sidelink"). For example, uplink channel, downlink channel, etc., can be replaced with sidelink channel, and uplink link, downlink, etc., can be replaced with sidelink link.

[0092] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, core network device, or network device may also be configured to have all or some of the functions of the terminal.

[0093] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0094] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0095] Furthermore, each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0096] Figure 1A is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

[0097] As shown in Figure 1A, the communication system 100 includes a first node and a second node. For example, the first node may include a central unit in the access network equipment, and the second node may include a distribution unit in the access network equipment. The first node and the second node can communicate with the terminal respectively, and the access network equipment can communicate with the core network equipment (e.g., functions on the core network side).

[0098] In some embodiments, terminal 101 includes, but is not limited to, at least one of the following: mobile phone, wearable device, Internet of Things device, car with communication function, smart car, tablet computer, computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical surgery, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, and wireless terminal device in smart home.

[0099] In some embodiments, the access network device is, for example, a node or device that connects a terminal to a wireless network. The access network device may include, but is not limited to, at least one of the following in a 5G communication system: evolved Node B (eNB), next-generation eNB (ng-eNB), next-generation Node B (gNB), node B (NB), home node B (HNB), home evolved node B (HeNB), radio backhaul device, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in a 6G communication system, open RAN, cloud RAN, base station in other communication systems, and access node in a Wi-Fi system.

[0100] In some embodiments, a core network device may be a single device comprising one or more network elements, or it may be multiple devices or a group of devices, each comprising all or part of the aforementioned one or more network elements. Network elements may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), or a Next Generation Core (NGC).

[0101] In some embodiments, the technical solutions of this disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within access network devices involved in the embodiments of this disclosure can be transformed into internal interfaces of Open RAN. The processes and information interactions between these internal interfaces can be implemented by software or programs.

[0102] In some embodiments, the access network device may be composed of a central unit (CU) and a distributed unit (DU). The CU may also be called a control unit. The CU-DU structure can separate the protocol layer of the access network device. Some of the protocol layer functions are centrally controlled by the CU, while the remaining part or all of the protocol layer functions are distributed in the DU and centrally controlled by the CU. However, this is not the only possibility.

[0103] It is understood that the communication system described in this disclosure is for the purpose of more clearly illustrating the technical solutions of this disclosure, and does not constitute a limitation on the technical solutions proposed in this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions proposed in this disclosure are also applicable to similar technical problems.

[0104] The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1A, or to some of the main bodies, but are not limited thereto. The main bodies shown in FIG1A are illustrative. The communication system may include all or some of the main bodies in FIG1A, or it may include other main bodies outside of FIG1A. The number and form of each main body are arbitrary. Each main body may be physical or virtual. The connection relationship between the main bodies is illustrative. The main bodies may not be connected or may be connected. The connection can be in any way, it can be a direct connection or an indirect connection, it can be a wired connection or a wireless connection.

[0105] The embodiments disclosed herein can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), and IEEE 802.20, Ultra-Wideband (UWB), Bluetooth (a registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X) systems, systems utilizing other communication methods, and next-generation systems built upon them, etc. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).

[0106] Figure 1B is a schematic diagram of a split architecture according to an embodiment of the present disclosure.

[0107] As shown in Figure 1B, a radio access network, such as NG-RAN (Next Generation Radio Access Network), may include one or more access network devices (e.g., gNB).

[0108] For example, a gNB can connect to the core network (e.g., a 5G core network) via the NG interface; for example, gNBs can connect to each other via the Xn interface; for example, in a separate architecture, a gNB can include a central unit (gNB-CU, abbreviated as CU) and one or more distribution units (gNB-DU, abbreviated as DU), and the central unit and the distribution unit can connect to each other via the F1 interface.

[0109] It should be noted that a distribution unit can only be connected to one central unit.

[0110] Figure 1C is a schematic diagram of another split architecture shown according to an embodiment of the present disclosure.

[0111] As shown in Figure 1C, the distributed unit can be further divided into the control plane center unit (CU-CP (Control Plane)) and the user plane center unit (CU-UP (User Plane)).

[0112] For example, CU-UP may include an SDAP (Service Data Adaptation Protocol) layer and a PDCP (Packet Data Convergence Protocol) layer.

[0113] For example, CU-CP may include an RRC (Radio Resource Control) layer and a PDCP layer.

[0114] For example, CU-UP can communicate with the UPF (User Plane Function) of the core network through the NR-U interface, and CU-CP can communicate with the AMF (Access and Mobility Management Function) of the core network through the NGAP interface.

[0115] For example, CU-UP and CU-CP can communicate via the E1 interface.

[0116] For example, the distributed unit and the CU-CP can communicate via the F1-C interface.

[0117] For example, the distributed unit and the CU-UP can communicate via the F1-U interface.

[0118] For example, a distribution unit may include an RLC (Radio Link Control) layer, a MAC (Media Access Control) layer, and a PHY (Physical) layer.

[0119] For example, the terminal and gNB can communicate via a wireless interface (such as the Uu port).

[0120] In some embodiments, higher-layer information and lower-layer signaling can be transmitted between the terminal and the distribution unit in the access network device.

[0121] For example, underlying signaling may include physical layer signaling, MAC CE (Media Access Control Element), etc.

[0122] For example, higher-level information may include information used for the distributed unit in RRC signaling, such as Configured Grant (CG) configuration, UAI (UE Assistance Information), QoE (Quality of Experience) information, etc.

[0123] Figure 1D is a schematic diagram illustrating communication between a terminal and an access network device according to an embodiment of the present disclosure.

[0124] As shown in Figure 1D, the distributed unit includes RLC layer, MAC layer, PHY layer, etc., but does not include RRC layer, while the central unit includes RRC layer.

[0125] In this scenario, the distributed unit can parse underlying signaling such as MAC CE and physical layer signaling, thus enabling direct transmission of underlying signaling between the terminal and the distributed unit.

[0126] However, the distributed unit cannot directly parse RRC signaling, which means that when the terminal communicates with the distributed unit for higher-level information (such as information carried through RRC signaling), it needs to go through the central unit.

[0127] For example, when a terminal sends higher-level information to the distribution unit (e.g., information in RRC signaling, which may originate from a higher layer), as shown in Figure 1D, the distribution unit first processes the higher-level information from the terminal to the RLC layer, and then transmits it to the central unit via F1AP signaling (e.g., through the F1AP layer, SCTP (Stream Control Transmission Protocol) layer, IP (Internet Protocol) layer, L2, L1, etc.). The central unit can process (e.g., parse) the higher-level information from the distribution unit through the RRC layer, then encapsulate the processed higher-level information via F1AP signaling and send it to the distribution unit through the F1 interface. Thus, the distribution unit obtains the content of the higher-level information sent by the terminal.

[0128] It is evident that although this transmission method uses a terminal as the sender and a distributed unit as the receiver, the transmitted information still needs to be processed by the central unit, which increases the latency of information transmission and the overhead of related signaling. In particular, for information related to dynamic resource allocation in scheduling, it may even affect the validity of the information.

[0129] Figure 2 is an interactive schematic diagram of an information sending method according to an embodiment of the present disclosure.

[0130] In some embodiments, the information sending method may be executed by the first node.

[0131] As shown in Figure 2, the information sending method may include the following steps:

[0132] In step S201, the first node sends the first information to the second node.

[0133] In some embodiments, the first information includes a first request. For example, the first request is used to request the second node to establish a first RB (Radio Bearer); for example, the first RB is used for communication between the second node and the third node.

[0134] For example, the first RB can be a Signalling Radio Bearer (SRB); or, for example, the first RB can be a Data Radio Bearer (DRB). The RB described in subsequent embodiments can be either an SRB or a DRB, and this disclosure is not limiting in this regard. For example, in embodiments where RRC signaling is transmitted via an RB, the RB can be an SRB.

[0135] For example, the first RB is determined and established by the first node after the terminal enters the RRC connection state; or, for another example, the first RB is determined and established based on a request from the terminal, the second node, or the core network.

[0136] In some embodiments, the first RB can be used to transmit at least one of RRC signaling, AI-related data, and perception-related data between the second node and the third node.

[0137] In step S202, the second node establishes the first RB.

[0138] In some embodiments, after establishing the first RB, the second node can communicate with the third node based on the first RB.

[0139] For example, the first node includes at least one of the following: core network equipment, access network equipment, and central unit in the access network equipment.

[0140] For example, the second node includes at least one of the following: an access network device, or a distribution unit within the access network device.

[0141] For example, the third node includes the terminal.

[0142] For example, communication between the second node and the third node may include at least one of the following: transmitting PDCP layer information, transmitting RRC layer information, and transmitting SDAP layer information. It should be noted that the first RB is not limited to transmitting information from these layers; it may also transmit information from other layers, such as MAC layer information and physical layer information. The following embodiments mainly use the first RB for transmitting RRC layer information (e.g., RRC signaling) as an example to illustrate the technical solution of this disclosure.

[0143] The following embodiments mainly use the first node as the central unit, the second node as the distribution unit, the third node as the terminal, and the first RB as the transmission of RRC signaling between the distribution unit and the terminal as an example to illustrate the technical solution of this disclosure.

[0144] As can be seen from the previous embodiments, when the distributed unit and the terminal transmit the information carried by the RRC signaling, they need to go through the central unit. One of the reasons is that there is no RB between the distributed unit and the terminal for transmitting the RRC signaling.

[0145] According to embodiments of this disclosure, the central unit can send first information carrying a first request to the distribution unit to request the distribution unit to establish a first RB. The first RB can be used for communication between the distribution unit and the terminal, such as transmitting RRC signaling. Accordingly, when there is information that cannot be directly transmitted between the distribution unit and the terminal, the first RB can be used to realize direct information transmission between the distribution unit and the terminal, such as direct transmission of RRC signaling.

[0146] For example, the first RB can also be used to transmit AI-related training data, AI models, perception results, and other information. Accordingly, when there is information between the distribution unit and the terminal that cannot be directly transmitted, the first RB can be used to achieve direct information transmission between the distribution unit and the terminal, such as direct data transmission, which can be used for AI or perception-related tasks.

[0147] In some embodiments, the first information further includes auxiliary information, wherein the auxiliary information is used to assist the distribution unit in establishing the first RB.

[0148] In some embodiments, the auxiliary information includes at least one of the following:

[0149] PDCP configuration;

[0150] The security information of the first RB may include, for example, a key;

[0151] The service quality requirements of the first RB transmission, such as transmission bandwidth, latency, priority, etc.

[0152] Figure 3A is a schematic diagram of a protocol stack according to an embodiment of the present disclosure. Figure 3B is a schematic diagram of another protocol stack according to an embodiment of the present disclosure.

[0153] As shown in Figure 3A, the terminal includes an RRC layer, a PDCP layer, and an RLC layer, and therefore corresponding RRC, PDCP, and RLC protocols exist. Of course, other layers also exist in the terminal, such as the MAC layer and the PHY layer. Based on the existing layers, the terminal can establish traditional SRBs, such as SRB#1, SRB#2, and SRB#3.

[0154] As shown in Figure 3B, the terminal includes a data transmission layer (e.g., DATA layer), a PDCP layer, and an RLC layer, and therefore corresponding data transmission protocols (e.g., DATA protocol, PDCP protocol, and RLC protocol). The DATA layer is just one example of a data transmission layer; the name of the data transmission layer is not limited to this. The data transmission layer can be used for data transmission, such as transmitting AI-related data (e.g., AI models, sample data for training AI models, validation data for validating AI models, etc.). When the data transmission layer is used to transmit AI-related data, its name could be, for example, AI layer, AI-DATA layer, perception layer, prediction layer, training layer, validation layer, etc. Correspondingly, the name of the data transmission protocol for the data transmission layer is not limited to the DATA protocol; it could be, for example, AI protocol, AI-DATA protocol, perception protocol, prediction protocol, training protocol, validation protocol, etc. Of course, other layers also exist in the terminal, such as the MAC layer and the PHY layer. Based on the existing layers, the terminal can establish traditional DRBs, such as DRB#1, DRB#2, and DRB#3.

[0155] The distributed unit contains an RLC layer (and other layers such as MAC and PHY layers), therefore it only has the corresponding RLC protocol, but not the RRC or PDCP protocols. The central unit, however, includes both RRC and PDCP layers, and therefore has the corresponding RRC and PDCP protocols.

[0156] In this scenario, in order to establish the first RB and use the first RB for transmitting RRC signaling, the distributed unit needs to build at least an RRC layer to ensure that it can support the transmission of RRC signaling. The foundation of the RRC layer is the PDCP layer, so the PDCP layer needs to be built first.

[0157] However, the distributed unit does not have the RRC and PDCP protocols, so it cannot build the RRC layer on its own. But the central unit has the RRC and PDCP protocols, so it can provide auxiliary information to the distributed unit to help it build the PDCP layer, and then build the RRC layer based on the PDCP layer, and then establish the first RB based on the RRC layer.

[0158] For example, auxiliary information may include PDCP configuration. The distribution unit may build a PDCP layer based on the PDCP configuration, then build an RRC layer based on the PDCP layer, and then establish a first RB for RRC signaling transmission based on the RRC layer.

[0159] For example, if the information transmitted by the first RB is securely protected, then the auxiliary information can include the security information of the first RB, such as the key of the first RB, to achieve security protection for the information transmitted by the first RB. How to achieve this security protection will be explained in subsequent embodiments.

[0160] For example, auxiliary information may include the service quality of the first RB transmission. The distributed unit can allocate and schedule resources for the data transmitted on the first RB based on the service quality of the first RB transmission (e.g., transmission bandwidth, latency, packet loss, etc.) in order to ensure effective data transmission.

[0161] In some embodiments, the central unit receives second information sent by the distribution unit, the second information including the configuration information of the first RB.

[0162] For example, the first information may include a UE CONTEXT SETUP QUEST message, in which case the second information may include a UE CONTEXT SETUP RESPONSE message.

[0163] In some embodiments, the central unit sends third information to the distribution unit, the third information including a first interaction identifier, the third information being used to trigger the distribution unit to send fourth information to the terminal, wherein the first interaction identifier is an identifier of the interaction corresponding to the distribution unit sending the fourth information to the terminal, and the fourth information includes the configuration information of the first RB.

[0164] For example, the third information may include a downlink RRC message transfer; for example, the fourth information may include an RRC reconfiguration message.

[0165] For example, after receiving the first request, the distribution unit can determine the configuration information of the first RB to be established, and then send the configuration information of the first RB to the central unit in the second information.

[0166] After the central unit learns that the distribution unit has determined the configuration information for the first RB to be established, it can send the configuration information of the first RB to the terminal. For example, the central unit can first send a third message to the distribution unit to trigger the distribution unit to send a fourth message to the terminal. For example, the third message can include an RRC reconfiguration message, which carries the configuration information of the first RB. After receiving the third message, the distribution unit can send the RRC reconfiguration message to the terminal.

[0167] Accordingly, both ends of the first RB communication—the distribution unit and the terminal—obtain the configuration information of the first RB, so that the distribution unit and the terminal can configure the layers required by the first RB based on the same configuration information of the first RB.

[0168] For example, as shown in Figure 3A, when the first RB is used to transmit RRC signaling, the first RB requires the support of the RRC layer, PDCP layer, RLC layer, MAC layer, and PHY layer. Then, the terminal and the distribution unit can establish the RRC layer, PDCP layer, RLC layer, MAC layer, and PHY layer according to the same configuration information of the first RB, thereby ensuring that the configuration of the layers supporting the first RB in the terminal and the distribution unit are corresponding, so as to ensure that the terminal and the distribution unit can successfully achieve communication through the first RB based on the corresponding layers.

[0169] For example, as shown in Figure 3B, when the first RB is used for data transmission, it requires the support of the PDCP layer, RLC layer, MAC layer, and PHY layer. The terminal and the distribution unit can then establish PDCP, RLC, MAC, and PHY layers based on the same configuration information of the first RB. This ensures that the configurations of the layers supporting the first RB in the terminal and the distribution unit are corresponding, enabling smooth communication between the terminal and the distribution unit through the first RB based on the corresponding layers. Optionally, the first RB requires an SDAP layer; alternatively, the first RB requires a data transmission layer. The data transmission protocol corresponding to the data transmission layer can be, for example, called a DATA protocol, AI protocol, AI-DATA protocol, perception protocol, prediction protocol, training protocol, or verification protocol. The data transmission layer can be used to transmit data, such as AI-related data.

[0170] For example, the fourth information sent by the distribution unit to the terminal may include the configuration information of the first RB, which is used by the terminal to establish the first RB.

[0171] For example, the configuration information of the first RB may include the security information of the first RB, which is used by the terminal to generate the security key of the first RB. For example, the key may be denoted as K-counter or DU-K-counter.

[0172] The terminal can generate a security key based on the key of the first RB and a pre-allocated key (e.g., denoted as KgNB), and then use the security key to encrypt the information transmitted by the first RB (e.g., RRC signaling), thereby achieving security protection for the information transmitted by the first RB. After receiving the information transmitted by the first RB, the distribution unit can decrypt it using the corresponding key (e.g., the key of the first RB in the auxiliary information). Only if decryption is successful can the information transmitted by the first RB be obtained.

[0173] In some embodiments, the third information may include a first interaction (transaction) identifier, which is an identifier of the interaction corresponding to the first information sent by the distribution unit to the terminal. The distribution unit may store the first interaction identifier.

[0174] Since the central unit, distribution unit, and terminal can transmit information at different times and in different interactions, the central unit needs to clearly identify which previous downlink information feedback the subsequent information from the terminal and distribution unit is related to. This embodiment addresses this by including a first interaction identifier in the third information. This allows the terminal and distribution unit to include the first interaction identifier in the information sent to the central unit if the information is related to the downlink information in the interaction corresponding to the first interaction identifier. This enables the central unit to determine which downlink information feedback the sent information is related to.

[0175] In some embodiments, the central unit receives fifth information, wherein the fifth information includes first indication information and the first interaction identifier, the first indication information being used to indicate whether the first RB configured for the interaction corresponding to the first interaction identifier has been successfully established.

[0176] It should be noted that this disclosure does not limit the way the central unit receives the fifth information. For example, the central unit can receive the fifth information from the terminal, or the central unit can receive the fifth information from the distribution unit.

[0177] In some embodiments, receiving the fifth information includes at least one of the following:

[0178] The fifth information sent by the terminal is received through a pre-established second RB;

[0179] The fifth information sent by the distribution unit is received through the first RB. The fifth information sent by the distribution unit is determined based on the sixth information sent by the terminal to the distribution unit through the first RB. The sixth information includes second indication information and the first interaction identifier. The second indication information is used to indicate whether the first RB configured for the interaction corresponding to the first interaction identifier has been successfully established.

[0180] For example, the central unit receives the fifth information sent by the terminal through a pre-established second RB (for example, the second RB can be a traditional SRB, such as SRB#1). The fifth information includes first indication information and the first interaction identifier. The first indication information is used to indicate whether the first RB configured for the interaction corresponding to the first interaction identifier has been successfully established.

[0181] For example, the fifth message may include an RRC reconfiguration complete message.

[0182] For example, a second RB can be pre-established between the terminal and the central unit. The second RB is used for information transmission between the terminal and the central unit. After the first RB is established, the terminal can send fifth information to the central unit through the second RB. The fifth information can carry first instruction information and a first interaction identifier.

[0183] The central unit can determine whether the first RB configured in the interaction corresponding to the first interaction identifier (e.g., the interaction where the configuration information of the first RB is located in the previous embodiment) has been successfully established based on the first instruction information.

[0184] It should be noted that the fifth message sent by the terminal to the central unit through the second RB can first be transmitted to the distribution unit. The distribution unit then further transmits (e.g., transparently transmits) the content of the fifth message to the central unit through uplink information (e.g., UL RRC MESSAGE TRANSFER).

[0185] In some embodiments, when the central unit receives the fifth information sent by the distribution unit through the pre-established second RB, it can send a seventh information to the distribution unit through the first RB. The seventh information includes a third indication information and a first interaction identifier. The seventh indication information is used to indicate whether the first RB configured for the interaction corresponding to the first interaction identifier has been successfully established.

[0186] For example, if the terminal does not send the fifth information to the distribution unit through the established first RB, after the central unit receives the content of the fifth information sent by the terminal through the second RB, it can send the seventh information to the distribution unit and indicate to the distribution unit through the third indication information in the seventh information whether the first RB configured by the interaction corresponding to the first interaction identifier (e.g., the interaction where the configuration information of the first RB is located in the previous embodiment) has been successfully established, so that the distribution unit can also determine whether the first RB has been successfully established.

[0187] It should be noted that, in some embodiments, the third indication information may also indicate whether the RRC reconfiguration information sent in the interaction corresponding to the first interaction identifier (e.g., the interaction where the configuration information of the first RB is located in the previous embodiment) has been successfully received.

[0188] For example, the seventh message can be called the RB establishment completion message. Since the first RB is used for information transmission between the terminal and the respective units, the first RB can also be called DU-SRB or DU-DRB. Therefore, the seventh message can be called the DU-SRB or DU-DRB establishment completion message.

[0189] In some embodiments, the terminal can send fifth information to the distribution unit through the established first RB, and indicate to the distribution unit through first indication information whether the first RB configured by the first interaction identifier has been successfully established.

[0190] For example, after the terminal completes the establishment of the first RB, it can send the fifth message to the distribution unit through the first RB. For example, the fifth message can be the RRC reconfiguration complete message.

[0191] The fifth information may carry first indication information and the first interaction identifier. The first indication information may indicate to the distribution unit whether the first RB configured by the interaction corresponding to the first interaction identifier (e.g., the interaction where the configuration information of the first RB is located in the previous embodiment) has been successfully established.

[0192] It should be noted that, in some embodiments, the first indication information may also indicate whether the RRC reconfiguration information sent in the interaction corresponding to the first interaction identifier (e.g., the interaction where the configuration information of the first RB is located in the previous embodiment) has been successfully received.

[0193] Furthermore, for example, after receiving the fifth information sent by the terminal through the first RB, the distribution unit can also send the fifth information to the central unit through the first RB.

[0194] For example, the fifth message sent by the distribution unit to the central unit through the first RB can be called the RB establishment completion message. Since the first RB is used for information transmission between the terminal and the distribution unit, the first RB can also be called DU-SRB or DU-DRB. Therefore, the fifth message can be called DU-SRB or DU-DRB establishment completion message.

[0195] In some embodiments, the fifth information sent by the distribution unit to the central unit through the first RB may include the identifier of the first RB. By sending the identifier of the first RB to the central unit, the central unit can determine whether the RB indicated by the fifth information has been successfully established. Specifically, it indicates whether the RB corresponding to the identifier of the first RB (i.e., the first RB) has been successfully established.

[0196] For example, the identifier of the first RB can be distinguished from the identifier of the traditional SRB. For example, the identifier of the traditional SRB is in the range of 1 to 3, so the identifier of the first SRB can be in the range of greater than 3. For example, if the identifier is 6, then the first SRB can be written as SRB#6.

[0197] The following examples illustrate the interaction between the terminal, the distribution unit, and the central unit.

[0198] Figure 4A is a schematic diagram illustrating the interaction of a terminal, a distribution unit, and a central unit according to an embodiment of the present disclosure.

[0199] As shown in Figure 4A, the central unit can send a terminal context setup request (UE CONTEXT SETUP QUEST) to the distributed unit. The terminal context setup request contains request information for establishing the first RB, such as the DU-RB setup request, and may also contain PDCP configuration.

[0200] After receiving the terminal context establishment request, the distributed unit can send a terminal context establishment response (UE CONTEXT SETUP RESPONSE) to the central unit. The terminal context establishment response contains the configuration information of the first RB.

[0201] The central unit can send a downlink RRC message transfer to the distributed unit, which includes the configuration information of the first RB and the first interaction identifier.

[0202] After receiving the RRC message transfer, the distributed unit can send an RRC reconfiguration message to the terminal. The RRC reconfiguration message contains the configuration information of the first RB (such as PDCP configuration, the key of the first RB, etc.).

[0203] After establishing the first RB, the terminal can send an RRC Reconfiguration Complete message to the distribution unit via the first RB. This message indicates that the first RB has been successfully established. The terminal can also send an RRC Reconfiguration Complete message to the central unit via a pre-established second RB. This message indicates that the first RB has been successfully established. When sending the RRC Reconfiguration Complete message to the central unit via the second RB, it can first be transmitted to the distribution unit, which then uses an uplink RRC message transfer (UL RRC MESSAGE TRANSFER) to further transmit the content of the fifth information to the central unit.

[0204] Figure 4B is a schematic diagram illustrating the interaction of a terminal, a distribution unit, and a central unit according to an embodiment of the present disclosure.

[0205] As shown in Figure 4B, the central unit can send a terminal context setup request (UE CONTEXT SETUP QUEST) to the distributed unit. The terminal context setup request contains request information for establishing the first RB, such as the DU-RB setup request, and may also contain PDCP configuration.

[0206] After receiving the terminal context establishment request, the distributed unit can send a terminal context establishment response (UE CONTEXT SETUP RESPONSE) to the central unit. The terminal context establishment response contains the configuration information of the first RB.

[0207] The central unit can send an RRC message transfer (DL RRC Message Transfer) to the distributed unit, which includes the configuration information of the first RB and the first interaction identifier.

[0208] After receiving the RRC message transfer, the distributed unit can send an RRC reconfiguration message to the terminal. The RRC reconfiguration message contains the configuration information of the first RB (such as PDCP configuration, the key of the first RB, etc.).

[0209] After the terminal completes the establishment of the first RB, it can send an RRC reconfiguration completion message to the central unit through the pre-established second RB. The RRC reconfiguration completion message is used to indicate that the first RB has been established. The RRC reconfiguration completion message sent to the central unit through the second RB can be transmitted to the distribution unit first. The distribution unit then sends the content of the fifth information to the central unit through the UL RRC MESSAGE TRANSFER.

[0210] After receiving the content of the fifth message, the central unit can further send an RB establishment completion message to the distribution unit to indicate whether the first RB has been successfully established.

[0211] Figure 4C is a schematic diagram illustrating the interaction of a terminal, a distribution unit, and a central unit according to an embodiment of the present disclosure.

[0212] As shown in Figure 4C, the central unit can send a terminal context setup request (UE CONTEXT SETUP QUEST) to the distributed unit. The terminal context setup request contains request information for establishing the first RB, such as the DU-RB setup request, and may also contain PDCP configuration.

[0213] After receiving the terminal context establishment request, the distributed unit can send a terminal context establishment response (UE CONTEXT SETUP RESPONSE) to the central unit. The terminal context establishment response contains the configuration information of the first RB.

[0214] The central unit can send an RRC message transfer (DL RRC Message Transfer) to the distributed unit, which includes the configuration information of the first RB and the first interaction identifier.

[0215] After receiving the RRC message transfer, the distributed unit can send an RRC reconfiguration message to the terminal. The RRC reconfiguration message contains the configuration information of the first RB (such as PDCP configuration, the key of the first RB, etc.).

[0216] After the terminal completes the establishment of the first RB, the terminal can send an RRC reconfiguration complete message to the distribution unit through the first RB. The RRC reconfiguration complete message is used to indicate that the first RB has been established.

[0217] The distribution unit can further send an RB establishment completion message to the central unit to indicate to the central unit whether the first RB has been successfully established.

[0218] In some embodiments, the information sending method further includes at least one of the following:

[0219] Receive first failure information sent by the terminal, wherein the first failure information is used to indicate the failure of the first RB;

[0220] The system receives a second failure message sent by the distribution unit, wherein the second failure message is used to indicate the failure of the first RB.

[0221] In some embodiments, the first RB may fail to establish itself during the establishment process, or it may fail to establish itself during use. Therefore, the central unit needs to be aware of the failure of the first RB in order to determine whether to initiate a re-establishment process or to determine whether to use another RB to transmit information. For example, the central unit can re-initiate the establishment process of the first RB if the first RB fails, or use another RB to transmit information.

[0222] For example, the terminal can send a first failure message to the central unit, and the central unit can determine the failure of the first RB based on the first indication message, such as establishment failure or failure during use after establishment.

[0223] For example, the distribution unit can send a first failure message to the central unit, and the central unit can determine the failure of the first RB based on the first indication message, such as establishment failure or failure during use after establishment.

[0224] Figure 5A is a schematic flowchart illustrating a failure indication according to an embodiment of the present disclosure.

[0225] As shown in Figure 5A, after the terminal completes the establishment of the first RB, it can monitor the failure of the first RB. For example, if it receives an integrity failure indication for the first RB from the lower layer, it can determine that the first RB has failed.

[0226] For example, in the event of a failure of the first RB, the terminal can initiate an RRC Connection Re-establishment procedure.

[0227] For example, in the event of a first RB failure, the terminal can send a first failure message to the central unit. This first failure message may carry a first RB failure reason value, indicating the cause of the failure, such as integrity failure. Based on the first failure message, the central unit can determine that the first RB has failed. In this case, the central unit may choose to re-establish the first RB (e.g., based on the embodiment shown in Figure 2) or not. The specific implementation depends on the central unit, and this disclosure does not limit this.

[0228] Figure 5B is a schematic flowchart illustrating another failure indication according to an embodiment of the present disclosure.

[0229] As shown in Figure 5B, after the distributed unit completes the establishment of the first RB, it can monitor the failure of the first RB.

[0230] For example, in the event of a first RB failure, the distributed unit can send a UE context release request to the central unit to release the UE context (in this case, the second failure information may include the UE context release request). For example, the UE context release request may include a reason value indicating the cause of the first RB failure, such as integrity failure.

[0231] For example, in the event of a first RB failure, the distribution unit can directly send a second failure message to the central unit. This second failure message can carry a cause value for the first RB failure, indicating the reason for the failure, such as integrity failure. Based on the second failure message, the central unit can determine that the second RB has failed. In this case, the central unit can choose to re-establish the first RB (e.g., based on the embodiment shown in Figure 2) or choose not to re-establish the first RB. The specific implementation depends on the central unit, and this disclosure does not limit this.

[0232] The communication method involved in the embodiments of this disclosure may include at least one of steps S201 to S202. For example, step S201 may be implemented as a standalone embodiment, step S202 may be implemented as a standalone embodiment, and step S201+S202 may be implemented as a standalone embodiment, but is not limited thereto.

[0233] In some embodiments, steps S201 and S202 may be performed in an alternate order or simultaneously.

[0234] In some embodiments, step S201 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0235] In some embodiments, step S202 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0236] In some embodiments, other optional implementations described before or after the specification corresponding to FIG2 may be referred to.

[0237] In some embodiments, the names of information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0238] In some embodiments, the terms "uplink", "uplink", and "physical uplink" can be used interchangeably, as can the terms "downlink", "downlink", and "physical downlink", as well as the terms "sidelink", "sidelink", "sidelink communication", "sidelink communication", "direct connection", "direct link", "direct communication", and "direct link communication".

[0239] In some embodiments, the terms “radio”, “wireless”, “radio access network (RAN)”, “access network (AN)”, and “RAN-based” can be used interchangeably.

[0240] In some embodiments, “get,” “obtain,” “receive,” “transmit,” “bidirectional transmission,” and “send and / or receive” can be used interchangeably and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining through self-processing, or autonomous implementation, among other meanings.

[0241] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transfer,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.

[0242] In some embodiments, terms such as "certain," "preset," "default," "set," "indicated," "a certain," "any," and "first" can be used interchangeably. "Certain A," "preset A," "default A," "set A," "indicated A," "a certain A," "any A," and "first A" can be interpreted as A pre-defined in a protocol or the like, or as A obtained through setting, configuration, or instruction, or as specific A, a certain A, any A, or first A, but are not limited thereto.

[0243] Corresponding to the aforementioned embodiments of the information sending method and information receiving method, this disclosure also provides embodiments of the information sending device and the information receiving device.

[0244] Figure 6 is a schematic block diagram illustrating an information transmitting device according to an embodiment of the present disclosure. For example, the information transmitting device can be applied to a central unit. As shown in Figure 6, the information transmitting device includes: a transmitting module 601 and a receiving module 602.

[0245] In some embodiments, the sending module is configured to send first information to the distribution unit, the first information including a first request, wherein the first request is used to request the distribution unit to establish a first radio bearer (RB), wherein the first RB is used for the distribution unit to communicate with the terminal.

[0246] In some embodiments, the first information further includes auxiliary information, wherein the auxiliary information is used to assist the distribution unit in establishing the first RB.

[0247] In some embodiments, the auxiliary information includes at least one of the following: Packet Data Convergence Protocol (PDCP) configuration; security information of the first RB; and service quality of the first RB transmission.

[0248] In some embodiments, the receiving module is configured to receive second information sent by the distribution unit, the second information including configuration information of the first RB.

[0249] In some embodiments, the sending module is further configured to send third information to the distribution unit, the third information including a first interaction identifier, the third information being used to trigger the distribution unit to send fourth information to the terminal, wherein the first interaction identifier is an identifier of the interaction corresponding to the distribution unit sending the fourth information to the terminal, and the fourth information includes configuration information of the first RB.

[0250] In some embodiments, the receiving module is configured to receive fifth information, wherein the fifth information includes first indication information and the first interaction identifier, the first indication information being used to indicate whether the first RB configured for the interaction corresponding to the first interaction identifier has been successfully established.

[0251] In some embodiments, the receiving module is configured to: receive the fifth information sent by the terminal through a pre-established second RB; receive the fifth information sent by the distribution unit through the first RB, wherein the fifth information sent by the distribution unit is determined based on the sixth information sent by the terminal to the distribution unit through the first RB, the sixth information including second indication information and the first interaction identifier, the second indication information being used to indicate whether the first RB configured for the interaction corresponding to the first interaction identifier has been successfully established.

[0252] In some embodiments, the sending module is configured to send seventh information to the distribution unit through the first RB when the receiving module receives the fifth information sent by the distribution unit through the pre-established second RB. The seventh information includes third indication information and the first interaction identifier. The seventh indication information is used to indicate whether the first RB configured for the interaction corresponding to the first interaction identifier has been successfully established.

[0253] In some embodiments, the receiving module is configured to be at least one of the following:

[0254] Receive first failure information sent by the terminal, wherein the first failure information is used to indicate the failure of the first RB;

[0255] The system receives a second failure message sent by the distribution unit, wherein the second failure message is used to indicate the failure of the first RB.

[0256] Figure 7 is a schematic block diagram illustrating an information receiving device according to an embodiment of the present disclosure. For example, the information receiving device can be applied to a distribution unit. As shown in Figure 7, the information receiving device includes: a receiving module 701 and a transmitting module 702.

[0257] In some embodiments, the receiving module is configured to receive first information sent by the central unit, the first information including a first request, wherein the first request is used to request the distribution unit to establish a first radio bearer (RB), wherein the first RB is used for the distribution unit to communicate with the terminal.

[0258] In some embodiments, the first information further includes auxiliary information, wherein the auxiliary information is used to assist the distribution unit in establishing the first RB.

[0259] In some embodiments, the auxiliary information includes at least one of the following: Packet Data Convergence Protocol (PDCP) configuration; security information of the first RB; and service quality of the first RB transmission.

[0260] In some embodiments, the sending module is configured to send fourth information to the terminal, the fourth information including configuration information of the first RB, the configuration information of the first RB being used by the terminal to establish the first RB.

[0261] In some embodiments, the configuration information of the first RB includes the security information of the first RB, and the security information of the first RB is used by the terminal to generate the security key of the first RB.

[0262] In some embodiments, the sending module is configured to send second information to the central unit, the second information including configuration information of the first RB.

[0263] In some embodiments, the receiving module is further configured to receive third information sent by the central unit, the third information including a first interaction identifier, wherein the first interaction identifier is an identifier of the interaction corresponding to the fourth information sent by the distribution unit to the terminal, and the fourth information includes the configuration information of the first RB.

[0264] In some embodiments, the sending module is configured to send fifth information, wherein the fifth information includes first indication information and the first interaction identifier, the first indication information being used to indicate whether the first RB configured for the interaction corresponding to the first interaction identifier has been successfully established.

[0265] In some embodiments, the sending module is configured to: receive fifth information sent by the terminal through a pre-established second RB, and send the fifth information in the second RB to the central unit; send fifth information to the central unit through the first RB, wherein the fifth information sent to the central unit through the first RB is determined based on sixth information sent by the terminal to the distribution unit through the first RB, the sixth information including second indication information and the first interaction identifier, the second indication information being used to indicate whether the first RB configured for the interaction corresponding to the first interaction identifier has been successfully established.

[0266] In some embodiments, the receiving module is further configured to receive a seventh message sent by the central unit when the sending module sends the fifth message in the second RB to the central unit, wherein the seventh message includes a third indication message and a first interaction identifier, the third indication message being used to indicate whether the first RB configured for the interaction corresponding to the first interaction identifier has been successfully established.

[0267] In some embodiments, the sending module is configured to send a second failure message to the central unit, wherein the second failure message is used to indicate the failure of the first RB.

[0268] Figure 8 is a schematic block diagram illustrating an information receiving device according to an embodiment of the present disclosure. For example, the information receiving device can be applied to a terminal. As shown in Figure 8, the information receiving device includes: a receiving module 801, a transmitting module 802, and a processing module 803.

[0269] In some embodiments, the receiving module is configured to receive fourth information sent by the distribution unit, wherein the fourth information includes configuration information of a first RB, the configuration information of the first RB being used by the terminal to establish a first RB, and the first RB being used by the distribution unit to communicate with the terminal.

[0270] In some embodiments, the processing module is configured to generate a security key for the first RB based on the security information of the first RB in the configuration information of the first RB.

[0271] In some embodiments, the sending module is configured to send fifth information, wherein the fifth information includes first indication information and the first interaction identifier, the first indication information being used to indicate whether the first RB configured for the interaction corresponding to the first interaction identifier has been successfully established.

[0272] In some embodiments, the sending module is configured to: send fifth information to the central unit via a pre-established second RB; or send fifth information to the distribution unit via the first RB.

[0273] In some embodiments, the sending module is configured to send first failure information to the central unit, wherein the first failure information is used to indicate the failure of the first RB.

[0274] For the device embodiments, since they basically correspond to the method embodiments, the relevant parts can be referred to in the description of the method embodiments. The device embodiments described above are merely illustrative. The modules described as separate components may or may not be physically separate, and the components shown as modules may or may not be physical modules; that is, they may be located in one place or distributed across multiple network modules. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0275] This disclosure also provides an apparatus for implementing any of the above methods. For example, an apparatus is provided that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Alternatively, another apparatus is provided that includes units or modules for implementing the steps performed by a network device (e.g., an access network device, a core network functional node, a core network device, etc.) in any of the above methods.

[0276] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through configuration files, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.

[0277] In this embodiment, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a Central Processing Unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. Furthermore, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a Neural Network Processing Unit (NPU), a Tensor Processing Unit (TPU), or a Deep Learning Processing Unit (DPU).

[0278] Figure 9A is a schematic diagram of the structure of the communication device 9100 proposed in an embodiment of this disclosure. The communication device 9100 can be a network device (e.g., access network device, core network device, etc.), a terminal (e.g., user equipment, etc.), a chip, chip system, or processor that supports the network device in implementing any of the above methods, or a chip, chip system, or processor that supports the terminal in implementing any of the above methods. The communication device 9100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0279] As shown in Figure 9A, the communication device 9100 includes one or more processors 9101. The processor 9101 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. Optionally, the communication device 9100 can be used to execute any of the above methods. Optionally, one or more processors 9101 can be used to invoke instructions to cause the communication device 9100 to execute any of the above methods.

[0280] In some embodiments, the communication device 9100 further includes one or more transceivers 9102. When the communication device 9100 includes one or more transceivers 9102, the transceiver 9102 performs at least one of the communication steps (e.g., steps S201, S202, but not limited thereto) in the above method, such as sending and / or receiving, while the processor 9101 performs at least one of other steps (e.g., steps S201, S202, but not limited thereto). In optional embodiments, the transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, interface, etc., can be used interchangeably; the terms transmitter, sending unit, transmitter, sending circuit, etc., can be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., can be used interchangeably.

[0281] In some embodiments, the communication device 9100 further includes one or more memories 9103 for storing data. Optionally, all or part of the memories 9103 may be located outside the communication device 9100. In optional embodiments, the communication device 9100 may include one or more interface circuits 9104. Optionally, the interface circuit 9104 is connected to the memory 9102 and can be used to receive data from the memory 9102 or other devices, and can be used to send data to the memory 9102 or other devices. For example, the interface circuit 9104 can read data stored in the memory 9102 and send the data to the processor 9101.

[0282] The communication device 9100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 9100 described in this disclosure is not limited thereto, and the structure of the communication device 9100 may not be limited by FIG. 9A. The communication device may be a standalone device or a part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally, the IC collection may also include storage components for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0283] Figure 9B is a schematic diagram of the structure of the chip 9200 proposed in an embodiment of this disclosure. For cases where the communication device 9100 can be a chip or a chip system, the schematic diagram of the chip 9200 shown in Figure 9B can be referred to, but is not limited thereto.

[0284] Chip 9200 includes one or more processors 9201. Chip 9200 is used to perform any of the methods described above.

[0285] In some embodiments, chip 9200 further includes one or more interface circuits 9202. Optionally, terms such as interface circuit, interface, and transceiver pin can be used interchangeably. In some embodiments, chip 9200 further includes one or more memories 9203 for storing data. Optionally, all or part of the memories 9203 may be located outside chip 9200. Optionally, interface circuit 9202 is connected to memory 9203, and interface circuit 9202 can be used to receive data from memory 9203 or other devices, and interface circuit 9202 can be used to send data to memory 9203 or other devices. For example, interface circuit 9202 can read data stored in memory 9203 and send the data to processor 9201.

[0286] In some embodiments, the interface circuit 9202 performs at least one of the communication steps (e.g., steps S201, S202, but not limited thereto) in the above-described method, such as sending and / or receiving. For example, the interface circuit 9202 performing the communication steps (e.g., sending and / or receiving) in the above-described method refers to the interface circuit 9202 performing data interaction between the processor 9201, the chip 9200, the memory 9203, or the transceiver device. In some embodiments, the processor 9201 performs at least one of other steps (e.g., steps S201, S202, but not limited thereto).

[0287] The modules and / or devices described in the various embodiments, such as virtual devices, physical devices, and chips, can be combined or separated arbitrarily as needed. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0288] This disclosure also proposes a storage medium storing instructions that, when executed on the communication device 9100, cause the communication device 9100 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0289] This disclosure also provides a program product that, when executed by the communication device 9100, causes the communication device 9100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0290] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

Claims

1. A method for sending information, characterized in that, The method, executed by the central unit, includes: Send a first message to the distribution unit, the first message including a first request, wherein the first request is used to request the distribution unit to establish a first radio bearer (RB), wherein the first RB is used for the distribution unit to communicate with the terminal.

2. The method according to claim 1, characterized in that, The first information also includes auxiliary information, wherein the auxiliary information is used to assist the distribution unit in establishing the first RB.

3. The method according to claim 2, characterized in that, The auxiliary information includes at least one of the following: Packet Data Convergence Protocol (PDCP) configuration; Security information of the first RB; The service quality of the first RB transmission.

4. The method according to any one of claims 1 to 3, characterized in that, The method further includes: The system receives second information sent by the distribution unit, the second information including the configuration information of the first RB.

5. The method according to any one of claims 1 to 4, characterized in that, The method further includes: The distribution unit sends third information, which includes a first interaction identifier. The third information is used to trigger the distribution unit to send fourth information to the terminal. The first interaction identifier is the identifier of the interaction corresponding to the distribution unit sending the fourth information to the terminal. The fourth information includes the configuration information of the first RB.

6. The method according to claim 5, characterized in that, The method further includes: Receive fifth information, wherein the fifth information includes first indication information and first interaction identifier, the first indication information being used to indicate whether the first RB configured for the interaction corresponding to the first interaction identifier has been successfully established.

7. The method according to claim 6, characterized in that, The receipt of the fifth information includes at least one of the following: The fifth information sent by the terminal is received through a pre-established second RB; The fifth information sent by the distribution unit is received through the first RB. The fifth information sent by the distribution unit is determined based on the sixth information sent by the terminal to the distribution unit through the first RB. The sixth information includes second indication information and the first interaction identifier. The second indication information is used to indicate whether the first RB configured for the interaction corresponding to the first interaction identifier has been successfully established.

8. The method according to claim 7, characterized in that, The method further includes: When the fifth information is received from the distribution unit through the pre-established second RB, the seventh information is sent to the distribution unit through the first RB. The seventh information includes a third indication information and a first interaction identifier. The seventh indication information is used to indicate whether the first RB configured for the interaction corresponding to the first interaction identifier has been successfully established.

9. The method according to any one of claims 1 to 8, characterized in that, The method further includes at least one of the following: Receive a first failure message sent by the terminal, wherein the first failure message is used to indicate that the first RB establishment failed; The system receives a second failure message sent by the distribution unit, wherein the second failure message indicates that the first RB has failed to be established.

10. An information receiving method, characterized in that, The method, executed by a distributed unit, includes: The receiving center unit sends first information, the first information including a first request, wherein the first request is used to request the distribution unit to establish a first radio bearer (RB), wherein the first RB is used for the distribution unit to communicate with the terminal.

11. The method according to claim 10, characterized in that, The first information also includes auxiliary information, wherein the auxiliary information is used to assist the distribution unit in establishing the first RB.

12. The method according to claim 11, characterized in that, The auxiliary information includes at least one of the following: Packet Data Convergence Protocol (PDCP) configuration; Security information of the first RB; The service quality of the first RB transmission.

13. The method according to claim 12, characterized in that, The method further includes: A fourth message is sent to the terminal, the fourth message including the configuration information of the first RB, the configuration information of the first RB being used by the terminal to establish the first RB.

14. The method according to claim 13, characterized in that, The configuration information of the first RB includes the security information of the first RB, and the security information of the first RB is used by the terminal to generate the security key of the first RB.

15. The method according to any one of claims 10 to 14, characterized in that, The method further includes: Send a second message to the central unit, the second message including the configuration information of the first RB.

16. The method according to any one of claims 10 to 15, characterized in that, The method further includes: The receiving center unit sends third information, the third information including a first interaction identifier, wherein the first interaction identifier is the identifier of the interaction corresponding to the fourth information sent by the distribution unit to the terminal, and the fourth information includes the configuration information of the first RB.

17. The method according to claim 16, characterized in that, The method further includes: Send a fifth message, wherein the fifth message includes a first indication message and a first interaction identifier, the first indication message being used to indicate whether the first RB configured for the interaction corresponding to the first interaction identifier has been successfully established.

18. The method according to claim 17, characterized in that, The sending of the fifth message includes at least one of the following: ： The fifth information sent by the terminal is received through a pre-established second RB, and the fifth information in the second RB is sent to the central unit. The fifth information is sent to the central unit through the first RB, wherein the fifth information sent to the central unit through the first RB is determined based on the sixth information sent by the terminal to the distribution unit through the first RB. The sixth information includes second indication information and the first interaction identifier. The second indication information is used to indicate whether the first RB configured for the interaction corresponding to the first interaction identifier has been successfully established.

19. The method according to claim 16, characterized in that, The method further includes: When the fifth information in the second RB is sent to the central unit, the seventh information sent by the central unit is received, wherein the seventh information includes third indication information and the first interaction identifier, and the third indication information is used to indicate whether the first RB configured for the interaction corresponding to the first interaction identifier has been successfully established.

20. The method according to any one of claims 10 to 19, characterized in that, The method further includes: A second failure message is sent to the central unit, wherein the second failure message is used to indicate the failure of the first RB.

21. An information receiving method, characterized in that, The method, executed by a terminal, includes: The terminal receives fourth information sent by the distribution unit, wherein the fourth information includes configuration information of the first RB, the configuration information of the first RB being used by the terminal to establish the first RB, and the first RB being used by the distribution unit to communicate with the terminal.

22. The method according to claim 21, characterized in that, The method further includes: The security key of the first RB is generated based on the security information of the first RB in the configuration information of the first RB.

23. The method according to claim 21, characterized in that, The method further includes: Send a fifth message, wherein the fifth message includes a first indication message and a first interaction identifier, the first indication message being used to indicate whether the first RB configured for the interaction corresponding to the first interaction identifier has been successfully established.

24. The method according to claim 21, characterized in that, The sending of the fifth message includes at least one of the following: The fifth message is sent to the central unit via a pre-established second RB; The fifth message is sent to the distribution unit through the first RB.

25. The method according to any one of claims 21 to 24, characterized in that, The method further includes: First failure information is sent to the central unit, wherein the first failure information is used to indicate the failure of the first RB.

26. An information transmitting device, characterized in that, The device includes: The sending module is configured to send first information to the distribution unit, the first information including a first request, wherein the first request is used to request the distribution unit to establish a first radio bearer (RB), wherein the first RB is used for communication between the distribution unit and the terminal.

27. An information receiving device, characterized in that, The device includes: The receiving module is configured to receive first information sent by the central unit, the first information including a first request, wherein the first request is used to request the distribution unit to establish a first radio bearer (RB), wherein the first RB is used for the distribution unit to communicate with the terminal.

28. An information receiving device, characterized in that, The device includes: The receiving module is configured to receive fourth information sent by the distribution unit, wherein the fourth information includes configuration information of the first RB, the configuration information of the first RB being used by the terminal to establish the first RB, and the first RB being used by the distribution unit to communicate with the terminal.

29. A network device, characterized in that, include: One or more processors; The network device is used to perform the information sending method according to any one of claims 1 to 9, and / or the information receiving method according to any one of claims 10 to 20.

30. A terminal, characterized in that, include: One or more processors; The terminal is used to execute the information receiving method according to any one of claims 21 to 25.

31. A communication system, characterized in that, The device includes a terminal and a network device, wherein the network device is configured to implement the information transmission method of any one of claims 1 to 9, and / or the information reception method of any one of claims 10 to 20, and the terminal is configured to implement the information reception method of any one of claims 21 to 25.

32. A storage medium storing instructions, characterized in that, When the instruction is executed on the communication device, the communication device performs the information transmission method of any one of claims 1 to 9, and / or the information reception method of any one of claims 10 to 25.

33. A program product, characterized in that, When the above-mentioned program product is executed by a communication device, the communication device performs the information transmission method according to any one of claims 1 to 9, and / or the information reception method according to any one of claims 10 to 25.

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